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deepseek/lib/python3.10/site-packages/aiohttp/.hash/hdrs.py.hash

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+dab8f933203eeb245d60f856e542a45b888d5a110094620e4811f90f816628d1  /home/runner/work/aiohttp/aiohttp/aiohttp/hdrs.py

deepseek/lib/python3.10/site-packages/aiohttp/__init__.py

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+__version__ = "3.11.10"
+
+from typing import TYPE_CHECKING, Tuple
+
+from . import hdrs as hdrs
+from .client import (
+    BaseConnector,
+    ClientConnectionError,
+    ClientConnectionResetError,
+    ClientConnectorCertificateError,
+    ClientConnectorDNSError,
+    ClientConnectorError,
+    ClientConnectorSSLError,
+    ClientError,
+    ClientHttpProxyError,
+    ClientOSError,
+    ClientPayloadError,
+    ClientProxyConnectionError,
+    ClientRequest,
+    ClientResponse,
+    ClientResponseError,
+    ClientSession,
+    ClientSSLError,
+    ClientTimeout,
+    ClientWebSocketResponse,
+    ClientWSTimeout,
+    ConnectionTimeoutError,
+    ContentTypeError,
+    Fingerprint,
+    InvalidURL,
+    InvalidUrlClientError,
+    InvalidUrlRedirectClientError,
+    NamedPipeConnector,
+    NonHttpUrlClientError,
+    NonHttpUrlRedirectClientError,
+    RedirectClientError,
+    RequestInfo,
+    ServerConnectionError,
+    ServerDisconnectedError,
+    ServerFingerprintMismatch,
+    ServerTimeoutError,
+    SocketTimeoutError,
+    TCPConnector,
+    TooManyRedirects,
+    UnixConnector,
+    WSMessageTypeError,
+    WSServerHandshakeError,
+    request,
+)
+from .cookiejar import CookieJar as CookieJar, DummyCookieJar as DummyCookieJar
+from .formdata import FormData as FormData
+from .helpers import BasicAuth, ChainMapProxy, ETag
+from .http import (
+    HttpVersion as HttpVersion,
+    HttpVersion10 as HttpVersion10,
+    HttpVersion11 as HttpVersion11,
+    WebSocketError as WebSocketError,
+    WSCloseCode as WSCloseCode,
+    WSMessage as WSMessage,
+    WSMsgType as WSMsgType,
+)
+from .multipart import (
+    BadContentDispositionHeader as BadContentDispositionHeader,
+    BadContentDispositionParam as BadContentDispositionParam,
+    BodyPartReader as BodyPartReader,
+    MultipartReader as MultipartReader,
+    MultipartWriter as MultipartWriter,
+    content_disposition_filename as content_disposition_filename,
+    parse_content_disposition as parse_content_disposition,
+)
+from .payload import (
+    PAYLOAD_REGISTRY as PAYLOAD_REGISTRY,
+    AsyncIterablePayload as AsyncIterablePayload,
+    BufferedReaderPayload as BufferedReaderPayload,
+    BytesIOPayload as BytesIOPayload,
+    BytesPayload as BytesPayload,
+    IOBasePayload as IOBasePayload,
+    JsonPayload as JsonPayload,
+    Payload as Payload,
+    StringIOPayload as StringIOPayload,
+    StringPayload as StringPayload,
+    TextIOPayload as TextIOPayload,
+    get_payload as get_payload,
+    payload_type as payload_type,
+)
+from .payload_streamer import streamer as streamer
+from .resolver import (
+    AsyncResolver as AsyncResolver,
+    DefaultResolver as DefaultResolver,
+    ThreadedResolver as ThreadedResolver,
+)
+from .streams import (
+    EMPTY_PAYLOAD as EMPTY_PAYLOAD,
+    DataQueue as DataQueue,
+    EofStream as EofStream,
+    FlowControlDataQueue as FlowControlDataQueue,
+    StreamReader as StreamReader,
+)
+from .tracing import (
+    TraceConfig as TraceConfig,
+    TraceConnectionCreateEndParams as TraceConnectionCreateEndParams,
+    TraceConnectionCreateStartParams as TraceConnectionCreateStartParams,
+    TraceConnectionQueuedEndParams as TraceConnectionQueuedEndParams,
+    TraceConnectionQueuedStartParams as TraceConnectionQueuedStartParams,
+    TraceConnectionReuseconnParams as TraceConnectionReuseconnParams,
+    TraceDnsCacheHitParams as TraceDnsCacheHitParams,
+    TraceDnsCacheMissParams as TraceDnsCacheMissParams,
+    TraceDnsResolveHostEndParams as TraceDnsResolveHostEndParams,
+    TraceDnsResolveHostStartParams as TraceDnsResolveHostStartParams,
+    TraceRequestChunkSentParams as TraceRequestChunkSentParams,
+    TraceRequestEndParams as TraceRequestEndParams,
+    TraceRequestExceptionParams as TraceRequestExceptionParams,
+    TraceRequestHeadersSentParams as TraceRequestHeadersSentParams,
+    TraceRequestRedirectParams as TraceRequestRedirectParams,
+    TraceRequestStartParams as TraceRequestStartParams,
+    TraceResponseChunkReceivedParams as TraceResponseChunkReceivedParams,
+)
+
+if TYPE_CHECKING:
+    # At runtime these are lazy-loaded at the bottom of the file.
+    from .worker import (
+        GunicornUVLoopWebWorker as GunicornUVLoopWebWorker,
+        GunicornWebWorker as GunicornWebWorker,
+    )
+
+__all__: Tuple[str, ...] = (
+    "hdrs",
+    # client
+    "BaseConnector",
+    "ClientConnectionError",
+    "ClientConnectionResetError",
+    "ClientConnectorCertificateError",
+    "ClientConnectorDNSError",
+    "ClientConnectorError",
+    "ClientConnectorSSLError",
+    "ClientError",
+    "ClientHttpProxyError",
+    "ClientOSError",
+    "ClientPayloadError",
+    "ClientProxyConnectionError",
+    "ClientResponse",
+    "ClientRequest",
+    "ClientResponseError",
+    "ClientSSLError",
+    "ClientSession",
+    "ClientTimeout",
+    "ClientWebSocketResponse",
+    "ClientWSTimeout",
+    "ConnectionTimeoutError",
+    "ContentTypeError",
+    "Fingerprint",
+    "FlowControlDataQueue",
+    "InvalidURL",
+    "InvalidUrlClientError",
+    "InvalidUrlRedirectClientError",
+    "NonHttpUrlClientError",
+    "NonHttpUrlRedirectClientError",
+    "RedirectClientError",
+    "RequestInfo",
+    "ServerConnectionError",
+    "ServerDisconnectedError",
+    "ServerFingerprintMismatch",
+    "ServerTimeoutError",
+    "SocketTimeoutError",
+    "TCPConnector",
+    "TooManyRedirects",
+    "UnixConnector",
+    "NamedPipeConnector",
+    "WSServerHandshakeError",
+    "request",
+    # cookiejar
+    "CookieJar",
+    "DummyCookieJar",
+    # formdata
+    "FormData",
+    # helpers
+    "BasicAuth",
+    "ChainMapProxy",
+    "ETag",
+    # http
+    "HttpVersion",
+    "HttpVersion10",
+    "HttpVersion11",
+    "WSMsgType",
+    "WSCloseCode",
+    "WSMessage",
+    "WebSocketError",
+    # multipart
+    "BadContentDispositionHeader",
+    "BadContentDispositionParam",
+    "BodyPartReader",
+    "MultipartReader",
+    "MultipartWriter",
+    "content_disposition_filename",
+    "parse_content_disposition",
+    # payload
+    "AsyncIterablePayload",
+    "BufferedReaderPayload",
+    "BytesIOPayload",
+    "BytesPayload",
+    "IOBasePayload",
+    "JsonPayload",
+    "PAYLOAD_REGISTRY",
+    "Payload",
+    "StringIOPayload",
+    "StringPayload",
+    "TextIOPayload",
+    "get_payload",
+    "payload_type",
+    # payload_streamer
+    "streamer",
+    # resolver
+    "AsyncResolver",
+    "DefaultResolver",
+    "ThreadedResolver",
+    # streams
+    "DataQueue",
+    "EMPTY_PAYLOAD",
+    "EofStream",
+    "StreamReader",
+    # tracing
+    "TraceConfig",
+    "TraceConnectionCreateEndParams",
+    "TraceConnectionCreateStartParams",
+    "TraceConnectionQueuedEndParams",
+    "TraceConnectionQueuedStartParams",
+    "TraceConnectionReuseconnParams",
+    "TraceDnsCacheHitParams",
+    "TraceDnsCacheMissParams",
+    "TraceDnsResolveHostEndParams",
+    "TraceDnsResolveHostStartParams",
+    "TraceRequestChunkSentParams",
+    "TraceRequestEndParams",
+    "TraceRequestExceptionParams",
+    "TraceRequestHeadersSentParams",
+    "TraceRequestRedirectParams",
+    "TraceRequestStartParams",
+    "TraceResponseChunkReceivedParams",
+    # workers (imported lazily with __getattr__)
+    "GunicornUVLoopWebWorker",
+    "GunicornWebWorker",
+    "WSMessageTypeError",
+)
+
+
+def __dir__() -> Tuple[str, ...]:
+    return __all__ + ("__doc__",)
+
+
+def __getattr__(name: str) -> object:
+    global GunicornUVLoopWebWorker, GunicornWebWorker
+
+    # Importing gunicorn takes a long time (>100ms), so only import if actually needed.
+    if name in ("GunicornUVLoopWebWorker", "GunicornWebWorker"):
+        try:
+            from .worker import GunicornUVLoopWebWorker as guv, GunicornWebWorker as gw
+        except ImportError:
+            return None
+
+        GunicornUVLoopWebWorker = guv  # type: ignore[misc]
+        GunicornWebWorker = gw  # type: ignore[misc]
+        return guv if name == "GunicornUVLoopWebWorker" else gw
+
+    raise AttributeError(f"module {__name__} has no attribute {name}")

deepseek/lib/python3.10/site-packages/aiohttp/_headers.pxi

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+# The file is autogenerated from aiohttp/hdrs.py
+# Run ./tools/gen.py to update it after the origin changing.
+
+from . import hdrs
+cdef tuple headers = (
+    hdrs.ACCEPT,
+    hdrs.ACCEPT_CHARSET,
+    hdrs.ACCEPT_ENCODING,
+    hdrs.ACCEPT_LANGUAGE,
+    hdrs.ACCEPT_RANGES,
+    hdrs.ACCESS_CONTROL_ALLOW_CREDENTIALS,
+    hdrs.ACCESS_CONTROL_ALLOW_HEADERS,
+    hdrs.ACCESS_CONTROL_ALLOW_METHODS,
+    hdrs.ACCESS_CONTROL_ALLOW_ORIGIN,
+    hdrs.ACCESS_CONTROL_EXPOSE_HEADERS,
+    hdrs.ACCESS_CONTROL_MAX_AGE,
+    hdrs.ACCESS_CONTROL_REQUEST_HEADERS,
+    hdrs.ACCESS_CONTROL_REQUEST_METHOD,
+    hdrs.AGE,
+    hdrs.ALLOW,
+    hdrs.AUTHORIZATION,
+    hdrs.CACHE_CONTROL,
+    hdrs.CONNECTION,
+    hdrs.CONTENT_DISPOSITION,
+    hdrs.CONTENT_ENCODING,
+    hdrs.CONTENT_LANGUAGE,
+    hdrs.CONTENT_LENGTH,
+    hdrs.CONTENT_LOCATION,
+    hdrs.CONTENT_MD5,
+    hdrs.CONTENT_RANGE,
+    hdrs.CONTENT_TRANSFER_ENCODING,
+    hdrs.CONTENT_TYPE,
+    hdrs.COOKIE,
+    hdrs.DATE,
+    hdrs.DESTINATION,
+    hdrs.DIGEST,
+    hdrs.ETAG,
+    hdrs.EXPECT,
+    hdrs.EXPIRES,
+    hdrs.FORWARDED,
+    hdrs.FROM,
+    hdrs.HOST,
+    hdrs.IF_MATCH,
+    hdrs.IF_MODIFIED_SINCE,
+    hdrs.IF_NONE_MATCH,
+    hdrs.IF_RANGE,
+    hdrs.IF_UNMODIFIED_SINCE,
+    hdrs.KEEP_ALIVE,
+    hdrs.LAST_EVENT_ID,
+    hdrs.LAST_MODIFIED,
+    hdrs.LINK,
+    hdrs.LOCATION,
+    hdrs.MAX_FORWARDS,
+    hdrs.ORIGIN,
+    hdrs.PRAGMA,
+    hdrs.PROXY_AUTHENTICATE,
+    hdrs.PROXY_AUTHORIZATION,
+    hdrs.RANGE,
+    hdrs.REFERER,
+    hdrs.RETRY_AFTER,
+    hdrs.SEC_WEBSOCKET_ACCEPT,
+    hdrs.SEC_WEBSOCKET_EXTENSIONS,
+    hdrs.SEC_WEBSOCKET_KEY,
+    hdrs.SEC_WEBSOCKET_KEY1,
+    hdrs.SEC_WEBSOCKET_PROTOCOL,
+    hdrs.SEC_WEBSOCKET_VERSION,
+    hdrs.SERVER,
+    hdrs.SET_COOKIE,
+    hdrs.TE,
+    hdrs.TRAILER,
+    hdrs.TRANSFER_ENCODING,
+    hdrs.URI,
+    hdrs.UPGRADE,
+    hdrs.USER_AGENT,
+    hdrs.VARY,
+    hdrs.VIA,
+    hdrs.WWW_AUTHENTICATE,
+    hdrs.WANT_DIGEST,
+    hdrs.WARNING,
+    hdrs.X_FORWARDED_FOR,
+    hdrs.X_FORWARDED_HOST,
+    hdrs.X_FORWARDED_PROTO,
+)

deepseek/lib/python3.10/site-packages/aiohttp/_http_writer.pyx

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+from cpython.bytes cimport PyBytes_FromStringAndSize
+from cpython.exc cimport PyErr_NoMemory
+from cpython.mem cimport PyMem_Free, PyMem_Malloc, PyMem_Realloc
+from cpython.object cimport PyObject_Str
+from libc.stdint cimport uint8_t, uint64_t
+from libc.string cimport memcpy
+
+from multidict import istr
+
+DEF BUF_SIZE = 16 * 1024  # 16KiB
+cdef char BUFFER[BUF_SIZE]
+
+cdef object _istr = istr
+
+
+# ----------------- writer ---------------------------
+
+cdef struct Writer:
+    char *buf
+    Py_ssize_t size
+    Py_ssize_t pos
+
+
+cdef inline void _init_writer(Writer* writer):
+    writer.buf = &BUFFER[0]
+    writer.size = BUF_SIZE
+    writer.pos = 0
+
+
+cdef inline void _release_writer(Writer* writer):
+    if writer.buf != BUFFER:
+        PyMem_Free(writer.buf)
+
+
+cdef inline int _write_byte(Writer* writer, uint8_t ch):
+    cdef char * buf
+    cdef Py_ssize_t size
+
+    if writer.pos == writer.size:
+        # reallocate
+        size = writer.size + BUF_SIZE
+        if writer.buf == BUFFER:
+            buf = <char*>PyMem_Malloc(size)
+            if buf == NULL:
+                PyErr_NoMemory()
+                return -1
+            memcpy(buf, writer.buf, writer.size)
+        else:
+            buf = <char*>PyMem_Realloc(writer.buf, size)
+            if buf == NULL:
+                PyErr_NoMemory()
+                return -1
+        writer.buf = buf
+        writer.size = size
+    writer.buf[writer.pos] = <char>ch
+    writer.pos += 1
+    return 0
+
+
+cdef inline int _write_utf8(Writer* writer, Py_UCS4 symbol):
+    cdef uint64_t utf = <uint64_t> symbol
+
+    if utf < 0x80:
+        return _write_byte(writer, <uint8_t>utf)
+    elif utf < 0x800:
+        if _write_byte(writer, <uint8_t>(0xc0 | (utf >> 6))) < 0:
+            return -1
+        return _write_byte(writer,  <uint8_t>(0x80 | (utf & 0x3f)))
+    elif 0xD800 <= utf <= 0xDFFF:
+        # surogate pair, ignored
+        return 0
+    elif utf < 0x10000:
+        if _write_byte(writer, <uint8_t>(0xe0 | (utf >> 12))) < 0:
+            return -1
+        if _write_byte(writer, <uint8_t>(0x80 | ((utf >> 6) & 0x3f))) < 0:
+            return -1
+        return _write_byte(writer, <uint8_t>(0x80 | (utf & 0x3f)))
+    elif utf > 0x10FFFF:
+        # symbol is too large
+        return 0
+    else:
+        if _write_byte(writer,  <uint8_t>(0xf0 | (utf >> 18))) < 0:
+            return -1
+        if _write_byte(writer,
+                       <uint8_t>(0x80 | ((utf >> 12) & 0x3f))) < 0:
+           return -1
+        if _write_byte(writer,
+                       <uint8_t>(0x80 | ((utf >> 6) & 0x3f))) < 0:
+            return -1
+        return _write_byte(writer, <uint8_t>(0x80 | (utf & 0x3f)))
+
+
+cdef inline int _write_str(Writer* writer, str s):
+    cdef Py_UCS4 ch
+    for ch in s:
+        if _write_utf8(writer, ch) < 0:
+            return -1
+
+
+# --------------- _serialize_headers ----------------------
+
+cdef str to_str(object s):
+    if type(s) is str:
+        return <str>s
+    elif type(s) is _istr:
+        return PyObject_Str(s)
+    elif not isinstance(s, str):
+        raise TypeError("Cannot serialize non-str key {!r}".format(s))
+    else:
+        return str(s)
+
+
+
+def _serialize_headers(str status_line, headers):
+    cdef Writer writer
+    cdef object key
+    cdef object val
+    cdef bytes ret
+    cdef str key_str
+    cdef str val_str
+
+    _init_writer(&writer)
+
+    try:
+        if _write_str(&writer, status_line) < 0:
+            raise
+        if _write_byte(&writer, b'\r') < 0:
+            raise
+        if _write_byte(&writer, b'\n') < 0:
+            raise
+
+        for key, val in headers.items():
+            key_str = to_str(key)
+            val_str = to_str(val)
+
+            if "\r" in key_str or "\n" in key_str or "\r" in val_str or "\n" in val_str:
+                raise ValueError(
+                    "Newline or carriage return character detected in HTTP status message or "
+                    "header. This is a potential security issue."
+                )
+
+            if _write_str(&writer, key_str) < 0:
+                raise
+            if _write_byte(&writer, b':') < 0:
+                raise
+            if _write_byte(&writer, b' ') < 0:
+                raise
+            if _write_str(&writer, val_str) < 0:
+                raise
+            if _write_byte(&writer, b'\r') < 0:
+                raise
+            if _write_byte(&writer, b'\n') < 0:
+                raise
+
+        if _write_byte(&writer, b'\r') < 0:
+            raise
+        if _write_byte(&writer, b'\n') < 0:
+            raise
+
+        return PyBytes_FromStringAndSize(writer.buf, writer.pos)
+    finally:
+        _release_writer(&writer)

deepseek/lib/python3.10/site-packages/aiohttp/abc.py

@@ -0,0 +1,247 @@
+import asyncio
+import logging
+import socket
+import zlib
+from abc import ABC, abstractmethod
+from collections.abc import Sized
+from http.cookies import BaseCookie, Morsel
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Awaitable,
+    Callable,
+    Dict,
+    Generator,
+    Iterable,
+    List,
+    Optional,
+    Tuple,
+    TypedDict,
+)
+
+from multidict import CIMultiDict
+from yarl import URL
+
+from .typedefs import LooseCookies
+
+if TYPE_CHECKING:
+    from .web_app import Application
+    from .web_exceptions import HTTPException
+    from .web_request import BaseRequest, Request
+    from .web_response import StreamResponse
+else:
+    BaseRequest = Request = Application = StreamResponse = None
+    HTTPException = None
+
+
+class AbstractRouter(ABC):
+    def __init__(self) -> None:
+        self._frozen = False
+
+    def post_init(self, app: Application) -> None:
+        """Post init stage.
+
+        Not an abstract method for sake of backward compatibility,
+        but if the router wants to be aware of the application
+        it can override this.
+        """
+
+    @property
+    def frozen(self) -> bool:
+        return self._frozen
+
+    def freeze(self) -> None:
+        """Freeze router."""
+        self._frozen = True
+
+    @abstractmethod
+    async def resolve(self, request: Request) -> "AbstractMatchInfo":
+        """Return MATCH_INFO for given request"""
+
+
+class AbstractMatchInfo(ABC):
+
+    __slots__ = ()
+
+    @property  # pragma: no branch
+    @abstractmethod
+    def handler(self) -> Callable[[Request], Awaitable[StreamResponse]]:
+        """Execute matched request handler"""
+
+    @property
+    @abstractmethod
+    def expect_handler(
+        self,
+    ) -> Callable[[Request], Awaitable[Optional[StreamResponse]]]:
+        """Expect handler for 100-continue processing"""
+
+    @property  # pragma: no branch
+    @abstractmethod
+    def http_exception(self) -> Optional[HTTPException]:
+        """HTTPException instance raised on router's resolving, or None"""
+
+    @abstractmethod  # pragma: no branch
+    def get_info(self) -> Dict[str, Any]:
+        """Return a dict with additional info useful for introspection"""
+
+    @property  # pragma: no branch
+    @abstractmethod
+    def apps(self) -> Tuple[Application, ...]:
+        """Stack of nested applications.
+
+        Top level application is left-most element.
+
+        """
+
+    @abstractmethod
+    def add_app(self, app: Application) -> None:
+        """Add application to the nested apps stack."""
+
+    @abstractmethod
+    def freeze(self) -> None:
+        """Freeze the match info.
+
+        The method is called after route resolution.
+
+        After the call .add_app() is forbidden.
+
+        """
+
+
+class AbstractView(ABC):
+    """Abstract class based view."""
+
+    def __init__(self, request: Request) -> None:
+        self._request = request
+
+    @property
+    def request(self) -> Request:
+        """Request instance."""
+        return self._request
+
+    @abstractmethod
+    def __await__(self) -> Generator[Any, None, StreamResponse]:
+        """Execute the view handler."""
+
+
+class ResolveResult(TypedDict):
+    """Resolve result.
+
+    This is the result returned from an AbstractResolver's
+    resolve method.
+
+    :param hostname: The hostname that was provided.
+    :param host: The IP address that was resolved.
+    :param port: The port that was resolved.
+    :param family: The address family that was resolved.
+    :param proto: The protocol that was resolved.
+    :param flags: The flags that were resolved.
+    """
+
+    hostname: str
+    host: str
+    port: int
+    family: int
+    proto: int
+    flags: int
+
+
+class AbstractResolver(ABC):
+    """Abstract DNS resolver."""
+
+    @abstractmethod
+    async def resolve(
+        self, host: str, port: int = 0, family: socket.AddressFamily = socket.AF_INET
+    ) -> List[ResolveResult]:
+        """Return IP address for given hostname"""
+
+    @abstractmethod
+    async def close(self) -> None:
+        """Release resolver"""
+
+
+if TYPE_CHECKING:
+    IterableBase = Iterable[Morsel[str]]
+else:
+    IterableBase = Iterable
+
+
+ClearCookiePredicate = Callable[["Morsel[str]"], bool]
+
+
+class AbstractCookieJar(Sized, IterableBase):
+    """Abstract Cookie Jar."""
+
+    def __init__(self, *, loop: Optional[asyncio.AbstractEventLoop] = None) -> None:
+        self._loop = loop or asyncio.get_running_loop()
+
+    @abstractmethod
+    def clear(self, predicate: Optional[ClearCookiePredicate] = None) -> None:
+        """Clear all cookies if no predicate is passed."""
+
+    @abstractmethod
+    def clear_domain(self, domain: str) -> None:
+        """Clear all cookies for domain and all subdomains."""
+
+    @abstractmethod
+    def update_cookies(self, cookies: LooseCookies, response_url: URL = URL()) -> None:
+        """Update cookies."""
+
+    @abstractmethod
+    def filter_cookies(self, request_url: URL) -> "BaseCookie[str]":
+        """Return the jar's cookies filtered by their attributes."""
+
+
+class AbstractStreamWriter(ABC):
+    """Abstract stream writer."""
+
+    buffer_size: int = 0
+    output_size: int = 0
+    length: Optional[int] = 0
+
+    @abstractmethod
+    async def write(self, chunk: bytes) -> None:
+        """Write chunk into stream."""
+
+    @abstractmethod
+    async def write_eof(self, chunk: bytes = b"") -> None:
+        """Write last chunk."""
+
+    @abstractmethod
+    async def drain(self) -> None:
+        """Flush the write buffer."""
+
+    @abstractmethod
+    def enable_compression(
+        self, encoding: str = "deflate", strategy: int = zlib.Z_DEFAULT_STRATEGY
+    ) -> None:
+        """Enable HTTP body compression"""
+
+    @abstractmethod
+    def enable_chunking(self) -> None:
+        """Enable HTTP chunked mode"""
+
+    @abstractmethod
+    async def write_headers(
+        self, status_line: str, headers: "CIMultiDict[str]"
+    ) -> None:
+        """Write HTTP headers"""
+
+
+class AbstractAccessLogger(ABC):
+    """Abstract writer to access log."""
+
+    __slots__ = ("logger", "log_format")
+
+    def __init__(self, logger: logging.Logger, log_format: str) -> None:
+        self.logger = logger
+        self.log_format = log_format
+
+    @abstractmethod
+    def log(self, request: BaseRequest, response: StreamResponse, time: float) -> None:
+        """Emit log to logger."""
+
+    @property
+    def enabled(self) -> bool:
+        """Check if logger is enabled."""
+        return True

deepseek/lib/python3.10/site-packages/aiohttp/base_protocol.py

@@ -0,0 +1,100 @@
+import asyncio
+from typing import Optional, cast
+
+from .client_exceptions import ClientConnectionResetError
+from .helpers import set_exception
+from .tcp_helpers import tcp_nodelay
+
+
+class BaseProtocol(asyncio.Protocol):
+    __slots__ = (
+        "_loop",
+        "_paused",
+        "_drain_waiter",
+        "_connection_lost",
+        "_reading_paused",
+        "transport",
+    )
+
+    def __init__(self, loop: asyncio.AbstractEventLoop) -> None:
+        self._loop: asyncio.AbstractEventLoop = loop
+        self._paused = False
+        self._drain_waiter: Optional[asyncio.Future[None]] = None
+        self._reading_paused = False
+
+        self.transport: Optional[asyncio.Transport] = None
+
+    @property
+    def connected(self) -> bool:
+        """Return True if the connection is open."""
+        return self.transport is not None
+
+    @property
+    def writing_paused(self) -> bool:
+        return self._paused
+
+    def pause_writing(self) -> None:
+        assert not self._paused
+        self._paused = True
+
+    def resume_writing(self) -> None:
+        assert self._paused
+        self._paused = False
+
+        waiter = self._drain_waiter
+        if waiter is not None:
+            self._drain_waiter = None
+            if not waiter.done():
+                waiter.set_result(None)
+
+    def pause_reading(self) -> None:
+        if not self._reading_paused and self.transport is not None:
+            try:
+                self.transport.pause_reading()
+            except (AttributeError, NotImplementedError, RuntimeError):
+                pass
+            self._reading_paused = True
+
+    def resume_reading(self) -> None:
+        if self._reading_paused and self.transport is not None:
+            try:
+                self.transport.resume_reading()
+            except (AttributeError, NotImplementedError, RuntimeError):
+                pass
+            self._reading_paused = False
+
+    def connection_made(self, transport: asyncio.BaseTransport) -> None:
+        tr = cast(asyncio.Transport, transport)
+        tcp_nodelay(tr, True)
+        self.transport = tr
+
+    def connection_lost(self, exc: Optional[BaseException]) -> None:
+        # Wake up the writer if currently paused.
+        self.transport = None
+        if not self._paused:
+            return
+        waiter = self._drain_waiter
+        if waiter is None:
+            return
+        self._drain_waiter = None
+        if waiter.done():
+            return
+        if exc is None:
+            waiter.set_result(None)
+        else:
+            set_exception(
+                waiter,
+                ConnectionError("Connection lost"),
+                exc,
+            )
+
+    async def _drain_helper(self) -> None:
+        if self.transport is None:
+            raise ClientConnectionResetError("Connection lost")
+        if not self._paused:
+            return
+        waiter = self._drain_waiter
+        if waiter is None:
+            waiter = self._loop.create_future()
+            self._drain_waiter = waiter
+        await asyncio.shield(waiter)

deepseek/lib/python3.10/site-packages/aiohttp/client.py

@@ -0,0 +1,1574 @@
+"""HTTP Client for asyncio."""
+
+import asyncio
+import base64
+import hashlib
+import json
+import os
+import sys
+import traceback
+import warnings
+from contextlib import suppress
+from types import TracebackType
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Awaitable,
+    Callable,
+    Coroutine,
+    Final,
+    FrozenSet,
+    Generator,
+    Generic,
+    Iterable,
+    List,
+    Mapping,
+    Optional,
+    Set,
+    Tuple,
+    Type,
+    TypedDict,
+    TypeVar,
+    Union,
+)
+
+import attr
+from multidict import CIMultiDict, MultiDict, MultiDictProxy, istr
+from yarl import URL
+
+from . import hdrs, http, payload
+from ._websocket.reader import WebSocketDataQueue
+from .abc import AbstractCookieJar
+from .client_exceptions import (
+    ClientConnectionError,
+    ClientConnectionResetError,
+    ClientConnectorCertificateError,
+    ClientConnectorDNSError,
+    ClientConnectorError,
+    ClientConnectorSSLError,
+    ClientError,
+    ClientHttpProxyError,
+    ClientOSError,
+    ClientPayloadError,
+    ClientProxyConnectionError,
+    ClientResponseError,
+    ClientSSLError,
+    ConnectionTimeoutError,
+    ContentTypeError,
+    InvalidURL,
+    InvalidUrlClientError,
+    InvalidUrlRedirectClientError,
+    NonHttpUrlClientError,
+    NonHttpUrlRedirectClientError,
+    RedirectClientError,
+    ServerConnectionError,
+    ServerDisconnectedError,
+    ServerFingerprintMismatch,
+    ServerTimeoutError,
+    SocketTimeoutError,
+    TooManyRedirects,
+    WSMessageTypeError,
+    WSServerHandshakeError,
+)
+from .client_reqrep import (
+    ClientRequest as ClientRequest,
+    ClientResponse as ClientResponse,
+    Fingerprint as Fingerprint,
+    RequestInfo as RequestInfo,
+    _merge_ssl_params,
+)
+from .client_ws import (
+    DEFAULT_WS_CLIENT_TIMEOUT,
+    ClientWebSocketResponse as ClientWebSocketResponse,
+    ClientWSTimeout as ClientWSTimeout,
+)
+from .connector import (
+    HTTP_AND_EMPTY_SCHEMA_SET,
+    BaseConnector as BaseConnector,
+    NamedPipeConnector as NamedPipeConnector,
+    TCPConnector as TCPConnector,
+    UnixConnector as UnixConnector,
+)
+from .cookiejar import CookieJar
+from .helpers import (
+    _SENTINEL,
+    DEBUG,
+    EMPTY_BODY_METHODS,
+    BasicAuth,
+    TimeoutHandle,
+    get_env_proxy_for_url,
+    sentinel,
+    strip_auth_from_url,
+)
+from .http import WS_KEY, HttpVersion, WebSocketReader, WebSocketWriter
+from .http_websocket import WSHandshakeError, ws_ext_gen, ws_ext_parse
+from .tracing import Trace, TraceConfig
+from .typedefs import JSONEncoder, LooseCookies, LooseHeaders, Query, StrOrURL
+
+__all__ = (
+    # client_exceptions
+    "ClientConnectionError",
+    "ClientConnectionResetError",
+    "ClientConnectorCertificateError",
+    "ClientConnectorDNSError",
+    "ClientConnectorError",
+    "ClientConnectorSSLError",
+    "ClientError",
+    "ClientHttpProxyError",
+    "ClientOSError",
+    "ClientPayloadError",
+    "ClientProxyConnectionError",
+    "ClientResponseError",
+    "ClientSSLError",
+    "ConnectionTimeoutError",
+    "ContentTypeError",
+    "InvalidURL",
+    "InvalidUrlClientError",
+    "RedirectClientError",
+    "NonHttpUrlClientError",
+    "InvalidUrlRedirectClientError",
+    "NonHttpUrlRedirectClientError",
+    "ServerConnectionError",
+    "ServerDisconnectedError",
+    "ServerFingerprintMismatch",
+    "ServerTimeoutError",
+    "SocketTimeoutError",
+    "TooManyRedirects",
+    "WSServerHandshakeError",
+    # client_reqrep
+    "ClientRequest",
+    "ClientResponse",
+    "Fingerprint",
+    "RequestInfo",
+    # connector
+    "BaseConnector",
+    "TCPConnector",
+    "UnixConnector",
+    "NamedPipeConnector",
+    # client_ws
+    "ClientWebSocketResponse",
+    # client
+    "ClientSession",
+    "ClientTimeout",
+    "ClientWSTimeout",
+    "request",
+    "WSMessageTypeError",
+)
+
+
+if TYPE_CHECKING:
+    from ssl import SSLContext
+else:
+    SSLContext = None
+
+if sys.version_info >= (3, 11) and TYPE_CHECKING:
+    from typing import Unpack
+
+
+class _RequestOptions(TypedDict, total=False):
+    params: Query
+    data: Any
+    json: Any
+    cookies: Union[LooseCookies, None]
+    headers: Union[LooseHeaders, None]
+    skip_auto_headers: Union[Iterable[str], None]
+    auth: Union[BasicAuth, None]
+    allow_redirects: bool
+    max_redirects: int
+    compress: Union[str, bool, None]
+    chunked: Union[bool, None]
+    expect100: bool
+    raise_for_status: Union[None, bool, Callable[[ClientResponse], Awaitable[None]]]
+    read_until_eof: bool
+    proxy: Union[StrOrURL, None]
+    proxy_auth: Union[BasicAuth, None]
+    timeout: "Union[ClientTimeout, _SENTINEL, None]"
+    ssl: Union[SSLContext, bool, Fingerprint]
+    server_hostname: Union[str, None]
+    proxy_headers: Union[LooseHeaders, None]
+    trace_request_ctx: Union[Mapping[str, Any], None]
+    read_bufsize: Union[int, None]
+    auto_decompress: Union[bool, None]
+    max_line_size: Union[int, None]
+    max_field_size: Union[int, None]
+
+
+@attr.s(auto_attribs=True, frozen=True, slots=True)
+class ClientTimeout:
+    total: Optional[float] = None
+    connect: Optional[float] = None
+    sock_read: Optional[float] = None
+    sock_connect: Optional[float] = None
+    ceil_threshold: float = 5
+
+    # pool_queue_timeout: Optional[float] = None
+    # dns_resolution_timeout: Optional[float] = None
+    # socket_connect_timeout: Optional[float] = None
+    # connection_acquiring_timeout: Optional[float] = None
+    # new_connection_timeout: Optional[float] = None
+    # http_header_timeout: Optional[float] = None
+    # response_body_timeout: Optional[float] = None
+
+    # to create a timeout specific for a single request, either
+    # - create a completely new one to overwrite the default
+    # - or use http://www.attrs.org/en/stable/api.html#attr.evolve
+    # to overwrite the defaults
+
+
+# 5 Minute default read timeout
+DEFAULT_TIMEOUT: Final[ClientTimeout] = ClientTimeout(total=5 * 60, sock_connect=30)
+
+# https://www.rfc-editor.org/rfc/rfc9110#section-9.2.2
+IDEMPOTENT_METHODS = frozenset({"GET", "HEAD", "OPTIONS", "TRACE", "PUT", "DELETE"})
+
+_RetType = TypeVar("_RetType", ClientResponse, ClientWebSocketResponse)
+_CharsetResolver = Callable[[ClientResponse, bytes], str]
+
+
+class ClientSession:
+    """First-class interface for making HTTP requests."""
+
+    ATTRS = frozenset(
+        [
+            "_base_url",
+            "_base_url_origin",
+            "_source_traceback",
+            "_connector",
+            "_loop",
+            "_cookie_jar",
+            "_connector_owner",
+            "_default_auth",
+            "_version",
+            "_json_serialize",
+            "_requote_redirect_url",
+            "_timeout",
+            "_raise_for_status",
+            "_auto_decompress",
+            "_trust_env",
+            "_default_headers",
+            "_skip_auto_headers",
+            "_request_class",
+            "_response_class",
+            "_ws_response_class",
+            "_trace_configs",
+            "_read_bufsize",
+            "_max_line_size",
+            "_max_field_size",
+            "_resolve_charset",
+            "_default_proxy",
+            "_default_proxy_auth",
+            "_retry_connection",
+            "requote_redirect_url",
+        ]
+    )
+
+    _source_traceback: Optional[traceback.StackSummary] = None
+    _connector: Optional[BaseConnector] = None
+
+    def __init__(
+        self,
+        base_url: Optional[StrOrURL] = None,
+        *,
+        connector: Optional[BaseConnector] = None,
+        loop: Optional[asyncio.AbstractEventLoop] = None,
+        cookies: Optional[LooseCookies] = None,
+        headers: Optional[LooseHeaders] = None,
+        proxy: Optional[StrOrURL] = None,
+        proxy_auth: Optional[BasicAuth] = None,
+        skip_auto_headers: Optional[Iterable[str]] = None,
+        auth: Optional[BasicAuth] = None,
+        json_serialize: JSONEncoder = json.dumps,
+        request_class: Type[ClientRequest] = ClientRequest,
+        response_class: Type[ClientResponse] = ClientResponse,
+        ws_response_class: Type[ClientWebSocketResponse] = ClientWebSocketResponse,
+        version: HttpVersion = http.HttpVersion11,
+        cookie_jar: Optional[AbstractCookieJar] = None,
+        connector_owner: bool = True,
+        raise_for_status: Union[
+            bool, Callable[[ClientResponse], Awaitable[None]]
+        ] = False,
+        read_timeout: Union[float, _SENTINEL] = sentinel,
+        conn_timeout: Optional[float] = None,
+        timeout: Union[object, ClientTimeout] = sentinel,
+        auto_decompress: bool = True,
+        trust_env: bool = False,
+        requote_redirect_url: bool = True,
+        trace_configs: Optional[List[TraceConfig]] = None,
+        read_bufsize: int = 2**16,
+        max_line_size: int = 8190,
+        max_field_size: int = 8190,
+        fallback_charset_resolver: _CharsetResolver = lambda r, b: "utf-8",
+    ) -> None:
+        # We initialise _connector to None immediately, as it's referenced in __del__()
+        # and could cause issues if an exception occurs during initialisation.
+        self._connector: Optional[BaseConnector] = None
+
+        if loop is None:
+            if connector is not None:
+                loop = connector._loop
+
+        loop = loop or asyncio.get_running_loop()
+
+        if base_url is None or isinstance(base_url, URL):
+            self._base_url: Optional[URL] = base_url
+            self._base_url_origin = None if base_url is None else base_url.origin()
+        else:
+            self._base_url = URL(base_url)
+            self._base_url_origin = self._base_url.origin()
+            assert self._base_url.absolute, "Only absolute URLs are supported"
+        if self._base_url is not None and not self._base_url.path.endswith("/"):
+            raise ValueError("base_url must have a trailing '/'")
+
+        if timeout is sentinel or timeout is None:
+            self._timeout = DEFAULT_TIMEOUT
+            if read_timeout is not sentinel:
+                warnings.warn(
+                    "read_timeout is deprecated, use timeout argument instead",
+                    DeprecationWarning,
+                    stacklevel=2,
+                )
+                self._timeout = attr.evolve(self._timeout, total=read_timeout)
+            if conn_timeout is not None:
+                self._timeout = attr.evolve(self._timeout, connect=conn_timeout)
+                warnings.warn(
+                    "conn_timeout is deprecated, use timeout argument instead",
+                    DeprecationWarning,
+                    stacklevel=2,
+                )
+        else:
+            if not isinstance(timeout, ClientTimeout):
+                raise ValueError(
+                    f"timeout parameter cannot be of {type(timeout)} type, "
+                    "please use 'timeout=ClientTimeout(...)'",
+                )
+            self._timeout = timeout
+            if read_timeout is not sentinel:
+                raise ValueError(
+                    "read_timeout and timeout parameters "
+                    "conflict, please setup "
+                    "timeout.read"
+                )
+            if conn_timeout is not None:
+                raise ValueError(
+                    "conn_timeout and timeout parameters "
+                    "conflict, please setup "
+                    "timeout.connect"
+                )
+
+        if connector is None:
+            connector = TCPConnector(loop=loop)
+
+        if connector._loop is not loop:
+            raise RuntimeError("Session and connector has to use same event loop")
+
+        self._loop = loop
+
+        if loop.get_debug():
+            self._source_traceback = traceback.extract_stack(sys._getframe(1))
+
+        if cookie_jar is None:
+            cookie_jar = CookieJar(loop=loop)
+        self._cookie_jar = cookie_jar
+
+        if cookies:
+            self._cookie_jar.update_cookies(cookies)
+
+        self._connector = connector
+        self._connector_owner = connector_owner
+        self._default_auth = auth
+        self._version = version
+        self._json_serialize = json_serialize
+        self._raise_for_status = raise_for_status
+        self._auto_decompress = auto_decompress
+        self._trust_env = trust_env
+        self._requote_redirect_url = requote_redirect_url
+        self._read_bufsize = read_bufsize
+        self._max_line_size = max_line_size
+        self._max_field_size = max_field_size
+
+        # Convert to list of tuples
+        if headers:
+            real_headers: CIMultiDict[str] = CIMultiDict(headers)
+        else:
+            real_headers = CIMultiDict()
+        self._default_headers: CIMultiDict[str] = real_headers
+        if skip_auto_headers is not None:
+            self._skip_auto_headers = frozenset(istr(i) for i in skip_auto_headers)
+        else:
+            self._skip_auto_headers = frozenset()
+
+        self._request_class = request_class
+        self._response_class = response_class
+        self._ws_response_class = ws_response_class
+
+        self._trace_configs = trace_configs or []
+        for trace_config in self._trace_configs:
+            trace_config.freeze()
+
+        self._resolve_charset = fallback_charset_resolver
+
+        self._default_proxy = proxy
+        self._default_proxy_auth = proxy_auth
+        self._retry_connection: bool = True
+
+    def __init_subclass__(cls: Type["ClientSession"]) -> None:
+        warnings.warn(
+            "Inheritance class {} from ClientSession "
+            "is discouraged".format(cls.__name__),
+            DeprecationWarning,
+            stacklevel=2,
+        )
+
+    if DEBUG:
+
+        def __setattr__(self, name: str, val: Any) -> None:
+            if name not in self.ATTRS:
+                warnings.warn(
+                    "Setting custom ClientSession.{} attribute "
+                    "is discouraged".format(name),
+                    DeprecationWarning,
+                    stacklevel=2,
+                )
+            super().__setattr__(name, val)
+
+    def __del__(self, _warnings: Any = warnings) -> None:
+        if not self.closed:
+            kwargs = {"source": self}
+            _warnings.warn(
+                f"Unclosed client session {self!r}", ResourceWarning, **kwargs
+            )
+            context = {"client_session": self, "message": "Unclosed client session"}
+            if self._source_traceback is not None:
+                context["source_traceback"] = self._source_traceback
+            self._loop.call_exception_handler(context)
+
+    if sys.version_info >= (3, 11) and TYPE_CHECKING:
+
+        def request(
+            self,
+            method: str,
+            url: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> "_RequestContextManager": ...
+
+    else:
+
+        def request(
+            self, method: str, url: StrOrURL, **kwargs: Any
+        ) -> "_RequestContextManager":
+            """Perform HTTP request."""
+            return _RequestContextManager(self._request(method, url, **kwargs))
+
+    def _build_url(self, str_or_url: StrOrURL) -> URL:
+        url = URL(str_or_url)
+        if self._base_url is None:
+            return url
+        else:
+            assert not url.absolute
+            return self._base_url.join(url)
+
+    async def _request(
+        self,
+        method: str,
+        str_or_url: StrOrURL,
+        *,
+        params: Query = None,
+        data: Any = None,
+        json: Any = None,
+        cookies: Optional[LooseCookies] = None,
+        headers: Optional[LooseHeaders] = None,
+        skip_auto_headers: Optional[Iterable[str]] = None,
+        auth: Optional[BasicAuth] = None,
+        allow_redirects: bool = True,
+        max_redirects: int = 10,
+        compress: Union[str, bool, None] = None,
+        chunked: Optional[bool] = None,
+        expect100: bool = False,
+        raise_for_status: Union[
+            None, bool, Callable[[ClientResponse], Awaitable[None]]
+        ] = None,
+        read_until_eof: bool = True,
+        proxy: Optional[StrOrURL] = None,
+        proxy_auth: Optional[BasicAuth] = None,
+        timeout: Union[ClientTimeout, _SENTINEL] = sentinel,
+        verify_ssl: Optional[bool] = None,
+        fingerprint: Optional[bytes] = None,
+        ssl_context: Optional[SSLContext] = None,
+        ssl: Union[SSLContext, bool, Fingerprint] = True,
+        server_hostname: Optional[str] = None,
+        proxy_headers: Optional[LooseHeaders] = None,
+        trace_request_ctx: Optional[Mapping[str, Any]] = None,
+        read_bufsize: Optional[int] = None,
+        auto_decompress: Optional[bool] = None,
+        max_line_size: Optional[int] = None,
+        max_field_size: Optional[int] = None,
+    ) -> ClientResponse:
+
+        # NOTE: timeout clamps existing connect and read timeouts.  We cannot
+        # set the default to None because we need to detect if the user wants
+        # to use the existing timeouts by setting timeout to None.
+
+        if self.closed:
+            raise RuntimeError("Session is closed")
+
+        ssl = _merge_ssl_params(ssl, verify_ssl, ssl_context, fingerprint)
+
+        if data is not None and json is not None:
+            raise ValueError(
+                "data and json parameters can not be used at the same time"
+            )
+        elif json is not None:
+            data = payload.JsonPayload(json, dumps=self._json_serialize)
+
+        if not isinstance(chunked, bool) and chunked is not None:
+            warnings.warn("Chunk size is deprecated #1615", DeprecationWarning)
+
+        redirects = 0
+        history: List[ClientResponse] = []
+        version = self._version
+        params = params or {}
+
+        # Merge with default headers and transform to CIMultiDict
+        headers = self._prepare_headers(headers)
+
+        try:
+            url = self._build_url(str_or_url)
+        except ValueError as e:
+            raise InvalidUrlClientError(str_or_url) from e
+
+        assert self._connector is not None
+        if url.scheme not in self._connector.allowed_protocol_schema_set:
+            raise NonHttpUrlClientError(url)
+
+        skip_headers: Optional[Iterable[istr]]
+        if skip_auto_headers is not None:
+            skip_headers = {
+                istr(i) for i in skip_auto_headers
+            } | self._skip_auto_headers
+        elif self._skip_auto_headers:
+            skip_headers = self._skip_auto_headers
+        else:
+            skip_headers = None
+
+        if proxy is None:
+            proxy = self._default_proxy
+        if proxy_auth is None:
+            proxy_auth = self._default_proxy_auth
+
+        if proxy is None:
+            proxy_headers = None
+        else:
+            proxy_headers = self._prepare_headers(proxy_headers)
+            try:
+                proxy = URL(proxy)
+            except ValueError as e:
+                raise InvalidURL(proxy) from e
+
+        if timeout is sentinel:
+            real_timeout: ClientTimeout = self._timeout
+        else:
+            if not isinstance(timeout, ClientTimeout):
+                real_timeout = ClientTimeout(total=timeout)
+            else:
+                real_timeout = timeout
+        # timeout is cumulative for all request operations
+        # (request, redirects, responses, data consuming)
+        tm = TimeoutHandle(
+            self._loop, real_timeout.total, ceil_threshold=real_timeout.ceil_threshold
+        )
+        handle = tm.start()
+
+        if read_bufsize is None:
+            read_bufsize = self._read_bufsize
+
+        if auto_decompress is None:
+            auto_decompress = self._auto_decompress
+
+        if max_line_size is None:
+            max_line_size = self._max_line_size
+
+        if max_field_size is None:
+            max_field_size = self._max_field_size
+
+        traces = [
+            Trace(
+                self,
+                trace_config,
+                trace_config.trace_config_ctx(trace_request_ctx=trace_request_ctx),
+            )
+            for trace_config in self._trace_configs
+        ]
+
+        for trace in traces:
+            await trace.send_request_start(method, url.update_query(params), headers)
+
+        timer = tm.timer()
+        try:
+            with timer:
+                # https://www.rfc-editor.org/rfc/rfc9112.html#name-retrying-requests
+                retry_persistent_connection = (
+                    self._retry_connection and method in IDEMPOTENT_METHODS
+                )
+                while True:
+                    url, auth_from_url = strip_auth_from_url(url)
+                    if not url.raw_host:
+                        # NOTE: Bail early, otherwise, causes `InvalidURL` through
+                        # NOTE: `self._request_class()` below.
+                        err_exc_cls = (
+                            InvalidUrlRedirectClientError
+                            if redirects
+                            else InvalidUrlClientError
+                        )
+                        raise err_exc_cls(url)
+                    # If `auth` was passed for an already authenticated URL,
+                    # disallow only if this is the initial URL; this is to avoid issues
+                    # with sketchy redirects that are not the caller's responsibility
+                    if not history and (auth and auth_from_url):
+                        raise ValueError(
+                            "Cannot combine AUTH argument with "
+                            "credentials encoded in URL"
+                        )
+
+                    # Override the auth with the one from the URL only if we
+                    # have no auth, or if we got an auth from a redirect URL
+                    if auth is None or (history and auth_from_url is not None):
+                        auth = auth_from_url
+
+                    if (
+                        auth is None
+                        and self._default_auth
+                        and (
+                            not self._base_url or self._base_url_origin == url.origin()
+                        )
+                    ):
+                        auth = self._default_auth
+                    # It would be confusing if we support explicit
+                    # Authorization header with auth argument
+                    if (
+                        headers is not None
+                        and auth is not None
+                        and hdrs.AUTHORIZATION in headers
+                    ):
+                        raise ValueError(
+                            "Cannot combine AUTHORIZATION header "
+                            "with AUTH argument or credentials "
+                            "encoded in URL"
+                        )
+
+                    all_cookies = self._cookie_jar.filter_cookies(url)
+
+                    if cookies is not None:
+                        tmp_cookie_jar = CookieJar()
+                        tmp_cookie_jar.update_cookies(cookies)
+                        req_cookies = tmp_cookie_jar.filter_cookies(url)
+                        if req_cookies:
+                            all_cookies.load(req_cookies)
+
+                    if proxy is not None:
+                        proxy = URL(proxy)
+                    elif self._trust_env:
+                        with suppress(LookupError):
+                            proxy, proxy_auth = get_env_proxy_for_url(url)
+
+                    req = self._request_class(
+                        method,
+                        url,
+                        params=params,
+                        headers=headers,
+                        skip_auto_headers=skip_headers,
+                        data=data,
+                        cookies=all_cookies,
+                        auth=auth,
+                        version=version,
+                        compress=compress,
+                        chunked=chunked,
+                        expect100=expect100,
+                        loop=self._loop,
+                        response_class=self._response_class,
+                        proxy=proxy,
+                        proxy_auth=proxy_auth,
+                        timer=timer,
+                        session=self,
+                        ssl=ssl if ssl is not None else True,
+                        server_hostname=server_hostname,
+                        proxy_headers=proxy_headers,
+                        traces=traces,
+                        trust_env=self.trust_env,
+                    )
+
+                    # connection timeout
+                    try:
+                        conn = await self._connector.connect(
+                            req, traces=traces, timeout=real_timeout
+                        )
+                    except asyncio.TimeoutError as exc:
+                        raise ConnectionTimeoutError(
+                            f"Connection timeout to host {url}"
+                        ) from exc
+
+                    assert conn.transport is not None
+
+                    assert conn.protocol is not None
+                    conn.protocol.set_response_params(
+                        timer=timer,
+                        skip_payload=method in EMPTY_BODY_METHODS,
+                        read_until_eof=read_until_eof,
+                        auto_decompress=auto_decompress,
+                        read_timeout=real_timeout.sock_read,
+                        read_bufsize=read_bufsize,
+                        timeout_ceil_threshold=self._connector._timeout_ceil_threshold,
+                        max_line_size=max_line_size,
+                        max_field_size=max_field_size,
+                    )
+
+                    try:
+                        try:
+                            resp = await req.send(conn)
+                            try:
+                                await resp.start(conn)
+                            except BaseException:
+                                resp.close()
+                                raise
+                        except BaseException:
+                            conn.close()
+                            raise
+                    except (ClientOSError, ServerDisconnectedError):
+                        if retry_persistent_connection:
+                            retry_persistent_connection = False
+                            continue
+                        raise
+                    except ClientError:
+                        raise
+                    except OSError as exc:
+                        if exc.errno is None and isinstance(exc, asyncio.TimeoutError):
+                            raise
+                        raise ClientOSError(*exc.args) from exc
+
+                    if cookies := resp._cookies:
+                        self._cookie_jar.update_cookies(cookies, resp.url)
+
+                    # redirects
+                    if resp.status in (301, 302, 303, 307, 308) and allow_redirects:
+
+                        for trace in traces:
+                            await trace.send_request_redirect(
+                                method, url.update_query(params), headers, resp
+                            )
+
+                        redirects += 1
+                        history.append(resp)
+                        if max_redirects and redirects >= max_redirects:
+                            resp.close()
+                            raise TooManyRedirects(
+                                history[0].request_info, tuple(history)
+                            )
+
+                        # For 301 and 302, mimic IE, now changed in RFC
+                        # https://github.com/kennethreitz/requests/pull/269
+                        if (resp.status == 303 and resp.method != hdrs.METH_HEAD) or (
+                            resp.status in (301, 302) and resp.method == hdrs.METH_POST
+                        ):
+                            method = hdrs.METH_GET
+                            data = None
+                            if headers.get(hdrs.CONTENT_LENGTH):
+                                headers.pop(hdrs.CONTENT_LENGTH)
+
+                        r_url = resp.headers.get(hdrs.LOCATION) or resp.headers.get(
+                            hdrs.URI
+                        )
+                        if r_url is None:
+                            # see github.com/aio-libs/aiohttp/issues/2022
+                            break
+                        else:
+                            # reading from correct redirection
+                            # response is forbidden
+                            resp.release()
+
+                        try:
+                            parsed_redirect_url = URL(
+                                r_url, encoded=not self._requote_redirect_url
+                            )
+                        except ValueError as e:
+                            raise InvalidUrlRedirectClientError(
+                                r_url,
+                                "Server attempted redirecting to a location that does not look like a URL",
+                            ) from e
+
+                        scheme = parsed_redirect_url.scheme
+                        if scheme not in HTTP_AND_EMPTY_SCHEMA_SET:
+                            resp.close()
+                            raise NonHttpUrlRedirectClientError(r_url)
+                        elif not scheme:
+                            parsed_redirect_url = url.join(parsed_redirect_url)
+
+                        try:
+                            redirect_origin = parsed_redirect_url.origin()
+                        except ValueError as origin_val_err:
+                            raise InvalidUrlRedirectClientError(
+                                parsed_redirect_url,
+                                "Invalid redirect URL origin",
+                            ) from origin_val_err
+
+                        if url.origin() != redirect_origin:
+                            auth = None
+                            headers.pop(hdrs.AUTHORIZATION, None)
+
+                        url = parsed_redirect_url
+                        params = {}
+                        resp.release()
+                        continue
+
+                    break
+
+            # check response status
+            if raise_for_status is None:
+                raise_for_status = self._raise_for_status
+
+            if raise_for_status is None:
+                pass
+            elif callable(raise_for_status):
+                await raise_for_status(resp)
+            elif raise_for_status:
+                resp.raise_for_status()
+
+            # register connection
+            if handle is not None:
+                if resp.connection is not None:
+                    resp.connection.add_callback(handle.cancel)
+                else:
+                    handle.cancel()
+
+            resp._history = tuple(history)
+
+            for trace in traces:
+                await trace.send_request_end(
+                    method, url.update_query(params), headers, resp
+                )
+            return resp
+
+        except BaseException as e:
+            # cleanup timer
+            tm.close()
+            if handle:
+                handle.cancel()
+                handle = None
+
+            for trace in traces:
+                await trace.send_request_exception(
+                    method, url.update_query(params), headers, e
+                )
+            raise
+
+    def ws_connect(
+        self,
+        url: StrOrURL,
+        *,
+        method: str = hdrs.METH_GET,
+        protocols: Iterable[str] = (),
+        timeout: Union[ClientWSTimeout, _SENTINEL] = sentinel,
+        receive_timeout: Optional[float] = None,
+        autoclose: bool = True,
+        autoping: bool = True,
+        heartbeat: Optional[float] = None,
+        auth: Optional[BasicAuth] = None,
+        origin: Optional[str] = None,
+        params: Query = None,
+        headers: Optional[LooseHeaders] = None,
+        proxy: Optional[StrOrURL] = None,
+        proxy_auth: Optional[BasicAuth] = None,
+        ssl: Union[SSLContext, bool, Fingerprint] = True,
+        verify_ssl: Optional[bool] = None,
+        fingerprint: Optional[bytes] = None,
+        ssl_context: Optional[SSLContext] = None,
+        server_hostname: Optional[str] = None,
+        proxy_headers: Optional[LooseHeaders] = None,
+        compress: int = 0,
+        max_msg_size: int = 4 * 1024 * 1024,
+    ) -> "_WSRequestContextManager":
+        """Initiate websocket connection."""
+        return _WSRequestContextManager(
+            self._ws_connect(
+                url,
+                method=method,
+                protocols=protocols,
+                timeout=timeout,
+                receive_timeout=receive_timeout,
+                autoclose=autoclose,
+                autoping=autoping,
+                heartbeat=heartbeat,
+                auth=auth,
+                origin=origin,
+                params=params,
+                headers=headers,
+                proxy=proxy,
+                proxy_auth=proxy_auth,
+                ssl=ssl,
+                verify_ssl=verify_ssl,
+                fingerprint=fingerprint,
+                ssl_context=ssl_context,
+                server_hostname=server_hostname,
+                proxy_headers=proxy_headers,
+                compress=compress,
+                max_msg_size=max_msg_size,
+            )
+        )
+
+    async def _ws_connect(
+        self,
+        url: StrOrURL,
+        *,
+        method: str = hdrs.METH_GET,
+        protocols: Iterable[str] = (),
+        timeout: Union[ClientWSTimeout, _SENTINEL] = sentinel,
+        receive_timeout: Optional[float] = None,
+        autoclose: bool = True,
+        autoping: bool = True,
+        heartbeat: Optional[float] = None,
+        auth: Optional[BasicAuth] = None,
+        origin: Optional[str] = None,
+        params: Query = None,
+        headers: Optional[LooseHeaders] = None,
+        proxy: Optional[StrOrURL] = None,
+        proxy_auth: Optional[BasicAuth] = None,
+        ssl: Union[SSLContext, bool, Fingerprint] = True,
+        verify_ssl: Optional[bool] = None,
+        fingerprint: Optional[bytes] = None,
+        ssl_context: Optional[SSLContext] = None,
+        server_hostname: Optional[str] = None,
+        proxy_headers: Optional[LooseHeaders] = None,
+        compress: int = 0,
+        max_msg_size: int = 4 * 1024 * 1024,
+    ) -> ClientWebSocketResponse:
+        if timeout is not sentinel:
+            if isinstance(timeout, ClientWSTimeout):
+                ws_timeout = timeout
+            else:
+                warnings.warn(
+                    "parameter 'timeout' of type 'float' "
+                    "is deprecated, please use "
+                    "'timeout=ClientWSTimeout(ws_close=...)'",
+                    DeprecationWarning,
+                    stacklevel=2,
+                )
+                ws_timeout = ClientWSTimeout(ws_close=timeout)
+        else:
+            ws_timeout = DEFAULT_WS_CLIENT_TIMEOUT
+        if receive_timeout is not None:
+            warnings.warn(
+                "float parameter 'receive_timeout' "
+                "is deprecated, please use parameter "
+                "'timeout=ClientWSTimeout(ws_receive=...)'",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+            ws_timeout = attr.evolve(ws_timeout, ws_receive=receive_timeout)
+
+        if headers is None:
+            real_headers: CIMultiDict[str] = CIMultiDict()
+        else:
+            real_headers = CIMultiDict(headers)
+
+        default_headers = {
+            hdrs.UPGRADE: "websocket",
+            hdrs.CONNECTION: "Upgrade",
+            hdrs.SEC_WEBSOCKET_VERSION: "13",
+        }
+
+        for key, value in default_headers.items():
+            real_headers.setdefault(key, value)
+
+        sec_key = base64.b64encode(os.urandom(16))
+        real_headers[hdrs.SEC_WEBSOCKET_KEY] = sec_key.decode()
+
+        if protocols:
+            real_headers[hdrs.SEC_WEBSOCKET_PROTOCOL] = ",".join(protocols)
+        if origin is not None:
+            real_headers[hdrs.ORIGIN] = origin
+        if compress:
+            extstr = ws_ext_gen(compress=compress)
+            real_headers[hdrs.SEC_WEBSOCKET_EXTENSIONS] = extstr
+
+        # For the sake of backward compatibility, if user passes in None, convert it to True
+        if ssl is None:
+            warnings.warn(
+                "ssl=None is deprecated, please use ssl=True",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+            ssl = True
+        ssl = _merge_ssl_params(ssl, verify_ssl, ssl_context, fingerprint)
+
+        # send request
+        resp = await self.request(
+            method,
+            url,
+            params=params,
+            headers=real_headers,
+            read_until_eof=False,
+            auth=auth,
+            proxy=proxy,
+            proxy_auth=proxy_auth,
+            ssl=ssl,
+            server_hostname=server_hostname,
+            proxy_headers=proxy_headers,
+        )
+
+        try:
+            # check handshake
+            if resp.status != 101:
+                raise WSServerHandshakeError(
+                    resp.request_info,
+                    resp.history,
+                    message="Invalid response status",
+                    status=resp.status,
+                    headers=resp.headers,
+                )
+
+            if resp.headers.get(hdrs.UPGRADE, "").lower() != "websocket":
+                raise WSServerHandshakeError(
+                    resp.request_info,
+                    resp.history,
+                    message="Invalid upgrade header",
+                    status=resp.status,
+                    headers=resp.headers,
+                )
+
+            if resp.headers.get(hdrs.CONNECTION, "").lower() != "upgrade":
+                raise WSServerHandshakeError(
+                    resp.request_info,
+                    resp.history,
+                    message="Invalid connection header",
+                    status=resp.status,
+                    headers=resp.headers,
+                )
+
+            # key calculation
+            r_key = resp.headers.get(hdrs.SEC_WEBSOCKET_ACCEPT, "")
+            match = base64.b64encode(hashlib.sha1(sec_key + WS_KEY).digest()).decode()
+            if r_key != match:
+                raise WSServerHandshakeError(
+                    resp.request_info,
+                    resp.history,
+                    message="Invalid challenge response",
+                    status=resp.status,
+                    headers=resp.headers,
+                )
+
+            # websocket protocol
+            protocol = None
+            if protocols and hdrs.SEC_WEBSOCKET_PROTOCOL in resp.headers:
+                resp_protocols = [
+                    proto.strip()
+                    for proto in resp.headers[hdrs.SEC_WEBSOCKET_PROTOCOL].split(",")
+                ]
+
+                for proto in resp_protocols:
+                    if proto in protocols:
+                        protocol = proto
+                        break
+
+            # websocket compress
+            notakeover = False
+            if compress:
+                compress_hdrs = resp.headers.get(hdrs.SEC_WEBSOCKET_EXTENSIONS)
+                if compress_hdrs:
+                    try:
+                        compress, notakeover = ws_ext_parse(compress_hdrs)
+                    except WSHandshakeError as exc:
+                        raise WSServerHandshakeError(
+                            resp.request_info,
+                            resp.history,
+                            message=exc.args[0],
+                            status=resp.status,
+                            headers=resp.headers,
+                        ) from exc
+                else:
+                    compress = 0
+                    notakeover = False
+
+            conn = resp.connection
+            assert conn is not None
+            conn_proto = conn.protocol
+            assert conn_proto is not None
+
+            # For WS connection the read_timeout must be either receive_timeout or greater
+            # None == no timeout, i.e. infinite timeout, so None is the max timeout possible
+            if ws_timeout.ws_receive is None:
+                # Reset regardless
+                conn_proto.read_timeout = None
+            elif conn_proto.read_timeout is not None:
+                conn_proto.read_timeout = max(
+                    ws_timeout.ws_receive, conn_proto.read_timeout
+                )
+
+            transport = conn.transport
+            assert transport is not None
+            reader = WebSocketDataQueue(conn_proto, 2**16, loop=self._loop)
+            conn_proto.set_parser(WebSocketReader(reader, max_msg_size), reader)
+            writer = WebSocketWriter(
+                conn_proto,
+                transport,
+                use_mask=True,
+                compress=compress,
+                notakeover=notakeover,
+            )
+        except BaseException:
+            resp.close()
+            raise
+        else:
+            return self._ws_response_class(
+                reader,
+                writer,
+                protocol,
+                resp,
+                ws_timeout,
+                autoclose,
+                autoping,
+                self._loop,
+                heartbeat=heartbeat,
+                compress=compress,
+                client_notakeover=notakeover,
+            )
+
+    def _prepare_headers(self, headers: Optional[LooseHeaders]) -> "CIMultiDict[str]":
+        """Add default headers and transform it to CIMultiDict"""
+        # Convert headers to MultiDict
+        result = CIMultiDict(self._default_headers)
+        if headers:
+            if not isinstance(headers, (MultiDictProxy, MultiDict)):
+                headers = CIMultiDict(headers)
+            added_names: Set[str] = set()
+            for key, value in headers.items():
+                if key in added_names:
+                    result.add(key, value)
+                else:
+                    result[key] = value
+                    added_names.add(key)
+        return result
+
+    if sys.version_info >= (3, 11) and TYPE_CHECKING:
+
+        def get(
+            self,
+            url: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> "_RequestContextManager": ...
+
+        def options(
+            self,
+            url: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> "_RequestContextManager": ...
+
+        def head(
+            self,
+            url: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> "_RequestContextManager": ...
+
+        def post(
+            self,
+            url: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> "_RequestContextManager": ...
+
+        def put(
+            self,
+            url: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> "_RequestContextManager": ...
+
+        def patch(
+            self,
+            url: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> "_RequestContextManager": ...
+
+        def delete(
+            self,
+            url: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> "_RequestContextManager": ...
+
+    else:
+
+        def get(
+            self, url: StrOrURL, *, allow_redirects: bool = True, **kwargs: Any
+        ) -> "_RequestContextManager":
+            """Perform HTTP GET request."""
+            return _RequestContextManager(
+                self._request(
+                    hdrs.METH_GET, url, allow_redirects=allow_redirects, **kwargs
+                )
+            )
+
+        def options(
+            self, url: StrOrURL, *, allow_redirects: bool = True, **kwargs: Any
+        ) -> "_RequestContextManager":
+            """Perform HTTP OPTIONS request."""
+            return _RequestContextManager(
+                self._request(
+                    hdrs.METH_OPTIONS, url, allow_redirects=allow_redirects, **kwargs
+                )
+            )
+
+        def head(
+            self, url: StrOrURL, *, allow_redirects: bool = False, **kwargs: Any
+        ) -> "_RequestContextManager":
+            """Perform HTTP HEAD request."""
+            return _RequestContextManager(
+                self._request(
+                    hdrs.METH_HEAD, url, allow_redirects=allow_redirects, **kwargs
+                )
+            )
+
+        def post(
+            self, url: StrOrURL, *, data: Any = None, **kwargs: Any
+        ) -> "_RequestContextManager":
+            """Perform HTTP POST request."""
+            return _RequestContextManager(
+                self._request(hdrs.METH_POST, url, data=data, **kwargs)
+            )
+
+        def put(
+            self, url: StrOrURL, *, data: Any = None, **kwargs: Any
+        ) -> "_RequestContextManager":
+            """Perform HTTP PUT request."""
+            return _RequestContextManager(
+                self._request(hdrs.METH_PUT, url, data=data, **kwargs)
+            )
+
+        def patch(
+            self, url: StrOrURL, *, data: Any = None, **kwargs: Any
+        ) -> "_RequestContextManager":
+            """Perform HTTP PATCH request."""
+            return _RequestContextManager(
+                self._request(hdrs.METH_PATCH, url, data=data, **kwargs)
+            )
+
+        def delete(self, url: StrOrURL, **kwargs: Any) -> "_RequestContextManager":
+            """Perform HTTP DELETE request."""
+            return _RequestContextManager(
+                self._request(hdrs.METH_DELETE, url, **kwargs)
+            )
+
+    async def close(self) -> None:
+        """Close underlying connector.
+
+        Release all acquired resources.
+        """
+        if not self.closed:
+            if self._connector is not None and self._connector_owner:
+                await self._connector.close()
+            self._connector = None
+
+    @property
+    def closed(self) -> bool:
+        """Is client session closed.
+
+        A readonly property.
+        """
+        return self._connector is None or self._connector.closed
+
+    @property
+    def connector(self) -> Optional[BaseConnector]:
+        """Connector instance used for the session."""
+        return self._connector
+
+    @property
+    def cookie_jar(self) -> AbstractCookieJar:
+        """The session cookies."""
+        return self._cookie_jar
+
+    @property
+    def version(self) -> Tuple[int, int]:
+        """The session HTTP protocol version."""
+        return self._version
+
+    @property
+    def requote_redirect_url(self) -> bool:
+        """Do URL requoting on redirection handling."""
+        return self._requote_redirect_url
+
+    @requote_redirect_url.setter
+    def requote_redirect_url(self, val: bool) -> None:
+        """Do URL requoting on redirection handling."""
+        warnings.warn(
+            "session.requote_redirect_url modification is deprecated #2778",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        self._requote_redirect_url = val
+
+    @property
+    def loop(self) -> asyncio.AbstractEventLoop:
+        """Session's loop."""
+        warnings.warn(
+            "client.loop property is deprecated", DeprecationWarning, stacklevel=2
+        )
+        return self._loop
+
+    @property
+    def timeout(self) -> ClientTimeout:
+        """Timeout for the session."""
+        return self._timeout
+
+    @property
+    def headers(self) -> "CIMultiDict[str]":
+        """The default headers of the client session."""
+        return self._default_headers
+
+    @property
+    def skip_auto_headers(self) -> FrozenSet[istr]:
+        """Headers for which autogeneration should be skipped"""
+        return self._skip_auto_headers
+
+    @property
+    def auth(self) -> Optional[BasicAuth]:
+        """An object that represents HTTP Basic Authorization"""
+        return self._default_auth
+
+    @property
+    def json_serialize(self) -> JSONEncoder:
+        """Json serializer callable"""
+        return self._json_serialize
+
+    @property
+    def connector_owner(self) -> bool:
+        """Should connector be closed on session closing"""
+        return self._connector_owner
+
+    @property
+    def raise_for_status(
+        self,
+    ) -> Union[bool, Callable[[ClientResponse], Awaitable[None]]]:
+        """Should `ClientResponse.raise_for_status()` be called for each response."""
+        return self._raise_for_status
+
+    @property
+    def auto_decompress(self) -> bool:
+        """Should the body response be automatically decompressed."""
+        return self._auto_decompress
+
+    @property
+    def trust_env(self) -> bool:
+        """
+        Should proxies information from environment or netrc be trusted.
+
+        Information is from HTTP_PROXY / HTTPS_PROXY environment variables
+        or ~/.netrc file if present.
+        """
+        return self._trust_env
+
+    @property
+    def trace_configs(self) -> List[TraceConfig]:
+        """A list of TraceConfig instances used for client tracing"""
+        return self._trace_configs
+
+    def detach(self) -> None:
+        """Detach connector from session without closing the former.
+
+        Session is switched to closed state anyway.
+        """
+        self._connector = None
+
+    def __enter__(self) -> None:
+        raise TypeError("Use async with instead")
+
+    def __exit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc_val: Optional[BaseException],
+        exc_tb: Optional[TracebackType],
+    ) -> None:
+        # __exit__ should exist in pair with __enter__ but never executed
+        pass  # pragma: no cover
+
+    async def __aenter__(self) -> "ClientSession":
+        return self
+
+    async def __aexit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc_val: Optional[BaseException],
+        exc_tb: Optional[TracebackType],
+    ) -> None:
+        await self.close()
+
+
+class _BaseRequestContextManager(Coroutine[Any, Any, _RetType], Generic[_RetType]):
+
+    __slots__ = ("_coro", "_resp")
+
+    def __init__(self, coro: Coroutine["asyncio.Future[Any]", None, _RetType]) -> None:
+        self._coro: Coroutine["asyncio.Future[Any]", None, _RetType] = coro
+
+    def send(self, arg: None) -> "asyncio.Future[Any]":
+        return self._coro.send(arg)
+
+    def throw(self, *args: Any, **kwargs: Any) -> "asyncio.Future[Any]":
+        return self._coro.throw(*args, **kwargs)
+
+    def close(self) -> None:
+        return self._coro.close()
+
+    def __await__(self) -> Generator[Any, None, _RetType]:
+        ret = self._coro.__await__()
+        return ret
+
+    def __iter__(self) -> Generator[Any, None, _RetType]:
+        return self.__await__()
+
+    async def __aenter__(self) -> _RetType:
+        self._resp: _RetType = await self._coro
+        return await self._resp.__aenter__()
+
+    async def __aexit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc: Optional[BaseException],
+        tb: Optional[TracebackType],
+    ) -> None:
+        await self._resp.__aexit__(exc_type, exc, tb)
+
+
+_RequestContextManager = _BaseRequestContextManager[ClientResponse]
+_WSRequestContextManager = _BaseRequestContextManager[ClientWebSocketResponse]
+
+
+class _SessionRequestContextManager:
+
+    __slots__ = ("_coro", "_resp", "_session")
+
+    def __init__(
+        self,
+        coro: Coroutine["asyncio.Future[Any]", None, ClientResponse],
+        session: ClientSession,
+    ) -> None:
+        self._coro = coro
+        self._resp: Optional[ClientResponse] = None
+        self._session = session
+
+    async def __aenter__(self) -> ClientResponse:
+        try:
+            self._resp = await self._coro
+        except BaseException:
+            await self._session.close()
+            raise
+        else:
+            return self._resp
+
+    async def __aexit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc: Optional[BaseException],
+        tb: Optional[TracebackType],
+    ) -> None:
+        assert self._resp is not None
+        self._resp.close()
+        await self._session.close()
+
+
+def request(
+    method: str,
+    url: StrOrURL,
+    *,
+    params: Query = None,
+    data: Any = None,
+    json: Any = None,
+    headers: Optional[LooseHeaders] = None,
+    skip_auto_headers: Optional[Iterable[str]] = None,
+    auth: Optional[BasicAuth] = None,
+    allow_redirects: bool = True,
+    max_redirects: int = 10,
+    compress: Optional[str] = None,
+    chunked: Optional[bool] = None,
+    expect100: bool = False,
+    raise_for_status: Optional[bool] = None,
+    read_until_eof: bool = True,
+    proxy: Optional[StrOrURL] = None,
+    proxy_auth: Optional[BasicAuth] = None,
+    timeout: Union[ClientTimeout, object] = sentinel,
+    cookies: Optional[LooseCookies] = None,
+    version: HttpVersion = http.HttpVersion11,
+    connector: Optional[BaseConnector] = None,
+    read_bufsize: Optional[int] = None,
+    loop: Optional[asyncio.AbstractEventLoop] = None,
+    max_line_size: int = 8190,
+    max_field_size: int = 8190,
+) -> _SessionRequestContextManager:
+    """Constructs and sends a request.
+
+    Returns response object.
+    method - HTTP method
+    url - request url
+    params - (optional) Dictionary or bytes to be sent in the query
+      string of the new request
+    data - (optional) Dictionary, bytes, or file-like object to
+      send in the body of the request
+    json - (optional) Any json compatible python object
+    headers - (optional) Dictionary of HTTP Headers to send with
+      the request
+    cookies - (optional) Dict object to send with the request
+    auth - (optional) BasicAuth named tuple represent HTTP Basic Auth
+    auth - aiohttp.helpers.BasicAuth
+    allow_redirects - (optional) If set to False, do not follow
+      redirects
+    version - Request HTTP version.
+    compress - Set to True if request has to be compressed
+       with deflate encoding.
+    chunked - Set to chunk size for chunked transfer encoding.
+    expect100 - Expect 100-continue response from server.
+    connector - BaseConnector sub-class instance to support
+       connection pooling.
+    read_until_eof - Read response until eof if response
+       does not have Content-Length header.
+    loop - Optional event loop.
+    timeout - Optional ClientTimeout settings structure, 5min
+       total timeout by default.
+    Usage::
+      >>> import aiohttp
+      >>> resp = await aiohttp.request('GET', 'http://python.org/')
+      >>> resp
+      <ClientResponse(python.org/) [200]>
+      >>> data = await resp.read()
+    """
+    connector_owner = False
+    if connector is None:
+        connector_owner = True
+        connector = TCPConnector(loop=loop, force_close=True)
+
+    session = ClientSession(
+        loop=loop,
+        cookies=cookies,
+        version=version,
+        timeout=timeout,
+        connector=connector,
+        connector_owner=connector_owner,
+    )
+
+    return _SessionRequestContextManager(
+        session._request(
+            method,
+            url,
+            params=params,
+            data=data,
+            json=json,
+            headers=headers,
+            skip_auto_headers=skip_auto_headers,
+            auth=auth,
+            allow_redirects=allow_redirects,
+            max_redirects=max_redirects,
+            compress=compress,
+            chunked=chunked,
+            expect100=expect100,
+            raise_for_status=raise_for_status,
+            read_until_eof=read_until_eof,
+            proxy=proxy,
+            proxy_auth=proxy_auth,
+            read_bufsize=read_bufsize,
+            max_line_size=max_line_size,
+            max_field_size=max_field_size,
+        ),
+        session,
+    )

deepseek/lib/python3.10/site-packages/aiohttp/client_exceptions.py

@@ -0,0 +1,417 @@
+"""HTTP related errors."""
+
+import asyncio
+import warnings
+from typing import TYPE_CHECKING, Optional, Tuple, Union
+
+from multidict import MultiMapping
+
+from .typedefs import StrOrURL
+
+try:
+    import ssl
+
+    SSLContext = ssl.SSLContext
+except ImportError:  # pragma: no cover
+    ssl = SSLContext = None  # type: ignore[assignment]
+
+
+if TYPE_CHECKING:
+    from .client_reqrep import ClientResponse, ConnectionKey, Fingerprint, RequestInfo
+    from .http_parser import RawResponseMessage
+else:
+    RequestInfo = ClientResponse = ConnectionKey = RawResponseMessage = None
+
+__all__ = (
+    "ClientError",
+    "ClientConnectionError",
+    "ClientConnectionResetError",
+    "ClientOSError",
+    "ClientConnectorError",
+    "ClientProxyConnectionError",
+    "ClientSSLError",
+    "ClientConnectorDNSError",
+    "ClientConnectorSSLError",
+    "ClientConnectorCertificateError",
+    "ConnectionTimeoutError",
+    "SocketTimeoutError",
+    "ServerConnectionError",
+    "ServerTimeoutError",
+    "ServerDisconnectedError",
+    "ServerFingerprintMismatch",
+    "ClientResponseError",
+    "ClientHttpProxyError",
+    "WSServerHandshakeError",
+    "ContentTypeError",
+    "ClientPayloadError",
+    "InvalidURL",
+    "InvalidUrlClientError",
+    "RedirectClientError",
+    "NonHttpUrlClientError",
+    "InvalidUrlRedirectClientError",
+    "NonHttpUrlRedirectClientError",
+    "WSMessageTypeError",
+)
+
+
+class ClientError(Exception):
+    """Base class for client connection errors."""
+
+
+class ClientResponseError(ClientError):
+    """Base class for exceptions that occur after getting a response.
+
+    request_info: An instance of RequestInfo.
+    history: A sequence of responses, if redirects occurred.
+    status: HTTP status code.
+    message: Error message.
+    headers: Response headers.
+    """
+
+    def __init__(
+        self,
+        request_info: RequestInfo,
+        history: Tuple[ClientResponse, ...],
+        *,
+        code: Optional[int] = None,
+        status: Optional[int] = None,
+        message: str = "",
+        headers: Optional[MultiMapping[str]] = None,
+    ) -> None:
+        self.request_info = request_info
+        if code is not None:
+            if status is not None:
+                raise ValueError(
+                    "Both code and status arguments are provided; "
+                    "code is deprecated, use status instead"
+                )
+            warnings.warn(
+                "code argument is deprecated, use status instead",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+        if status is not None:
+            self.status = status
+        elif code is not None:
+            self.status = code
+        else:
+            self.status = 0
+        self.message = message
+        self.headers = headers
+        self.history = history
+        self.args = (request_info, history)
+
+    def __str__(self) -> str:
+        return "{}, message={!r}, url={!r}".format(
+            self.status,
+            self.message,
+            str(self.request_info.real_url),
+        )
+
+    def __repr__(self) -> str:
+        args = f"{self.request_info!r}, {self.history!r}"
+        if self.status != 0:
+            args += f", status={self.status!r}"
+        if self.message != "":
+            args += f", message={self.message!r}"
+        if self.headers is not None:
+            args += f", headers={self.headers!r}"
+        return f"{type(self).__name__}({args})"
+
+    @property
+    def code(self) -> int:
+        warnings.warn(
+            "code property is deprecated, use status instead",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        return self.status
+
+    @code.setter
+    def code(self, value: int) -> None:
+        warnings.warn(
+            "code property is deprecated, use status instead",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        self.status = value
+
+
+class ContentTypeError(ClientResponseError):
+    """ContentType found is not valid."""
+
+
+class WSServerHandshakeError(ClientResponseError):
+    """websocket server handshake error."""
+
+
+class ClientHttpProxyError(ClientResponseError):
+    """HTTP proxy error.
+
+    Raised in :class:`aiohttp.connector.TCPConnector` if
+    proxy responds with status other than ``200 OK``
+    on ``CONNECT`` request.
+    """
+
+
+class TooManyRedirects(ClientResponseError):
+    """Client was redirected too many times."""
+
+
+class ClientConnectionError(ClientError):
+    """Base class for client socket errors."""
+
+
+class ClientConnectionResetError(ClientConnectionError, ConnectionResetError):
+    """ConnectionResetError"""
+
+
+class ClientOSError(ClientConnectionError, OSError):
+    """OSError error."""
+
+
+class ClientConnectorError(ClientOSError):
+    """Client connector error.
+
+    Raised in :class:`aiohttp.connector.TCPConnector` if
+        a connection can not be established.
+    """
+
+    def __init__(self, connection_key: ConnectionKey, os_error: OSError) -> None:
+        self._conn_key = connection_key
+        self._os_error = os_error
+        super().__init__(os_error.errno, os_error.strerror)
+        self.args = (connection_key, os_error)
+
+    @property
+    def os_error(self) -> OSError:
+        return self._os_error
+
+    @property
+    def host(self) -> str:
+        return self._conn_key.host
+
+    @property
+    def port(self) -> Optional[int]:
+        return self._conn_key.port
+
+    @property
+    def ssl(self) -> Union[SSLContext, bool, "Fingerprint"]:
+        return self._conn_key.ssl
+
+    def __str__(self) -> str:
+        return "Cannot connect to host {0.host}:{0.port} ssl:{1} [{2}]".format(
+            self, "default" if self.ssl is True else self.ssl, self.strerror
+        )
+
+    # OSError.__reduce__ does too much black magick
+    __reduce__ = BaseException.__reduce__
+
+
+class ClientConnectorDNSError(ClientConnectorError):
+    """DNS resolution failed during client connection.
+
+    Raised in :class:`aiohttp.connector.TCPConnector` if
+        DNS resolution fails.
+    """
+
+
+class ClientProxyConnectionError(ClientConnectorError):
+    """Proxy connection error.
+
+    Raised in :class:`aiohttp.connector.TCPConnector` if
+        connection to proxy can not be established.
+    """
+
+
+class UnixClientConnectorError(ClientConnectorError):
+    """Unix connector error.
+
+    Raised in :py:class:`aiohttp.connector.UnixConnector`
+    if connection to unix socket can not be established.
+    """
+
+    def __init__(
+        self, path: str, connection_key: ConnectionKey, os_error: OSError
+    ) -> None:
+        self._path = path
+        super().__init__(connection_key, os_error)
+
+    @property
+    def path(self) -> str:
+        return self._path
+
+    def __str__(self) -> str:
+        return "Cannot connect to unix socket {0.path} ssl:{1} [{2}]".format(
+            self, "default" if self.ssl is True else self.ssl, self.strerror
+        )
+
+
+class ServerConnectionError(ClientConnectionError):
+    """Server connection errors."""
+
+
+class ServerDisconnectedError(ServerConnectionError):
+    """Server disconnected."""
+
+    def __init__(self, message: Union[RawResponseMessage, str, None] = None) -> None:
+        if message is None:
+            message = "Server disconnected"
+
+        self.args = (message,)
+        self.message = message
+
+
+class ServerTimeoutError(ServerConnectionError, asyncio.TimeoutError):
+    """Server timeout error."""
+
+
+class ConnectionTimeoutError(ServerTimeoutError):
+    """Connection timeout error."""
+
+
+class SocketTimeoutError(ServerTimeoutError):
+    """Socket timeout error."""
+
+
+class ServerFingerprintMismatch(ServerConnectionError):
+    """SSL certificate does not match expected fingerprint."""
+
+    def __init__(self, expected: bytes, got: bytes, host: str, port: int) -> None:
+        self.expected = expected
+        self.got = got
+        self.host = host
+        self.port = port
+        self.args = (expected, got, host, port)
+
+    def __repr__(self) -> str:
+        return "<{} expected={!r} got={!r} host={!r} port={!r}>".format(
+            self.__class__.__name__, self.expected, self.got, self.host, self.port
+        )
+
+
+class ClientPayloadError(ClientError):
+    """Response payload error."""
+
+
+class InvalidURL(ClientError, ValueError):
+    """Invalid URL.
+
+    URL used for fetching is malformed, e.g. it doesn't contains host
+    part.
+    """
+
+    # Derive from ValueError for backward compatibility
+
+    def __init__(self, url: StrOrURL, description: Union[str, None] = None) -> None:
+        # The type of url is not yarl.URL because the exception can be raised
+        # on URL(url) call
+        self._url = url
+        self._description = description
+
+        if description:
+            super().__init__(url, description)
+        else:
+            super().__init__(url)
+
+    @property
+    def url(self) -> StrOrURL:
+        return self._url
+
+    @property
+    def description(self) -> "str | None":
+        return self._description
+
+    def __repr__(self) -> str:
+        return f"<{self.__class__.__name__} {self}>"
+
+    def __str__(self) -> str:
+        if self._description:
+            return f"{self._url} - {self._description}"
+        return str(self._url)
+
+
+class InvalidUrlClientError(InvalidURL):
+    """Invalid URL client error."""
+
+
+class RedirectClientError(ClientError):
+    """Client redirect error."""
+
+
+class NonHttpUrlClientError(ClientError):
+    """Non http URL client error."""
+
+
+class InvalidUrlRedirectClientError(InvalidUrlClientError, RedirectClientError):
+    """Invalid URL redirect client error."""
+
+
+class NonHttpUrlRedirectClientError(NonHttpUrlClientError, RedirectClientError):
+    """Non http URL redirect client error."""
+
+
+class ClientSSLError(ClientConnectorError):
+    """Base error for ssl.*Errors."""
+
+
+if ssl is not None:
+    cert_errors = (ssl.CertificateError,)
+    cert_errors_bases = (
+        ClientSSLError,
+        ssl.CertificateError,
+    )
+
+    ssl_errors = (ssl.SSLError,)
+    ssl_error_bases = (ClientSSLError, ssl.SSLError)
+else:  # pragma: no cover
+    cert_errors = tuple()
+    cert_errors_bases = (
+        ClientSSLError,
+        ValueError,
+    )
+
+    ssl_errors = tuple()
+    ssl_error_bases = (ClientSSLError,)
+
+
+class ClientConnectorSSLError(*ssl_error_bases):  # type: ignore[misc]
+    """Response ssl error."""
+
+
+class ClientConnectorCertificateError(*cert_errors_bases):  # type: ignore[misc]
+    """Response certificate error."""
+
+    def __init__(
+        self, connection_key: ConnectionKey, certificate_error: Exception
+    ) -> None:
+        self._conn_key = connection_key
+        self._certificate_error = certificate_error
+        self.args = (connection_key, certificate_error)
+
+    @property
+    def certificate_error(self) -> Exception:
+        return self._certificate_error
+
+    @property
+    def host(self) -> str:
+        return self._conn_key.host
+
+    @property
+    def port(self) -> Optional[int]:
+        return self._conn_key.port
+
+    @property
+    def ssl(self) -> bool:
+        return self._conn_key.is_ssl
+
+    def __str__(self) -> str:
+        return (
+            "Cannot connect to host {0.host}:{0.port} ssl:{0.ssl} "
+            "[{0.certificate_error.__class__.__name__}: "
+            "{0.certificate_error.args}]".format(self)
+        )
+
+
+class WSMessageTypeError(TypeError):
+    """WebSocket message type is not valid."""

deepseek/lib/python3.10/site-packages/aiohttp/client_proto.py

@@ -0,0 +1,307 @@
+import asyncio
+from contextlib import suppress
+from typing import Any, Optional, Tuple
+
+from .base_protocol import BaseProtocol
+from .client_exceptions import (
+    ClientOSError,
+    ClientPayloadError,
+    ServerDisconnectedError,
+    SocketTimeoutError,
+)
+from .helpers import (
+    _EXC_SENTINEL,
+    EMPTY_BODY_STATUS_CODES,
+    BaseTimerContext,
+    set_exception,
+)
+from .http import HttpResponseParser, RawResponseMessage
+from .http_exceptions import HttpProcessingError
+from .streams import EMPTY_PAYLOAD, DataQueue, StreamReader
+
+
+class ResponseHandler(BaseProtocol, DataQueue[Tuple[RawResponseMessage, StreamReader]]):
+    """Helper class to adapt between Protocol and StreamReader."""
+
+    def __init__(self, loop: asyncio.AbstractEventLoop) -> None:
+        BaseProtocol.__init__(self, loop=loop)
+        DataQueue.__init__(self, loop)
+
+        self._should_close = False
+
+        self._payload: Optional[StreamReader] = None
+        self._skip_payload = False
+        self._payload_parser = None
+
+        self._timer = None
+
+        self._tail = b""
+        self._upgraded = False
+        self._parser: Optional[HttpResponseParser] = None
+
+        self._read_timeout: Optional[float] = None
+        self._read_timeout_handle: Optional[asyncio.TimerHandle] = None
+
+        self._timeout_ceil_threshold: Optional[float] = 5
+
+    @property
+    def upgraded(self) -> bool:
+        return self._upgraded
+
+    @property
+    def should_close(self) -> bool:
+        return bool(
+            self._should_close
+            or (self._payload is not None and not self._payload.is_eof())
+            or self._upgraded
+            or self._exception is not None
+            or self._payload_parser is not None
+            or self._buffer
+            or self._tail
+        )
+
+    def force_close(self) -> None:
+        self._should_close = True
+
+    def close(self) -> None:
+        transport = self.transport
+        if transport is not None:
+            transport.close()
+            self.transport = None
+            self._payload = None
+            self._drop_timeout()
+
+    def is_connected(self) -> bool:
+        return self.transport is not None and not self.transport.is_closing()
+
+    def connection_lost(self, exc: Optional[BaseException]) -> None:
+        self._drop_timeout()
+
+        original_connection_error = exc
+        reraised_exc = original_connection_error
+
+        connection_closed_cleanly = original_connection_error is None
+
+        if self._payload_parser is not None:
+            with suppress(Exception):  # FIXME: log this somehow?
+                self._payload_parser.feed_eof()
+
+        uncompleted = None
+        if self._parser is not None:
+            try:
+                uncompleted = self._parser.feed_eof()
+            except Exception as underlying_exc:
+                if self._payload is not None:
+                    client_payload_exc_msg = (
+                        f"Response payload is not completed: {underlying_exc !r}"
+                    )
+                    if not connection_closed_cleanly:
+                        client_payload_exc_msg = (
+                            f"{client_payload_exc_msg !s}. "
+                            f"{original_connection_error !r}"
+                        )
+                    set_exception(
+                        self._payload,
+                        ClientPayloadError(client_payload_exc_msg),
+                        underlying_exc,
+                    )
+
+        if not self.is_eof():
+            if isinstance(original_connection_error, OSError):
+                reraised_exc = ClientOSError(*original_connection_error.args)
+            if connection_closed_cleanly:
+                reraised_exc = ServerDisconnectedError(uncompleted)
+            # assigns self._should_close to True as side effect,
+            # we do it anyway below
+            underlying_non_eof_exc = (
+                _EXC_SENTINEL
+                if connection_closed_cleanly
+                else original_connection_error
+            )
+            assert underlying_non_eof_exc is not None
+            assert reraised_exc is not None
+            self.set_exception(reraised_exc, underlying_non_eof_exc)
+
+        self._should_close = True
+        self._parser = None
+        self._payload = None
+        self._payload_parser = None
+        self._reading_paused = False
+
+        super().connection_lost(reraised_exc)
+
+    def eof_received(self) -> None:
+        # should call parser.feed_eof() most likely
+        self._drop_timeout()
+
+    def pause_reading(self) -> None:
+        super().pause_reading()
+        self._drop_timeout()
+
+    def resume_reading(self) -> None:
+        super().resume_reading()
+        self._reschedule_timeout()
+
+    def set_exception(
+        self,
+        exc: BaseException,
+        exc_cause: BaseException = _EXC_SENTINEL,
+    ) -> None:
+        self._should_close = True
+        self._drop_timeout()
+        super().set_exception(exc, exc_cause)
+
+    def set_parser(self, parser: Any, payload: Any) -> None:
+        # TODO: actual types are:
+        #   parser: WebSocketReader
+        #   payload: WebSocketDataQueue
+        # but they are not generi enough
+        # Need an ABC for both types
+        self._payload = payload
+        self._payload_parser = parser
+
+        self._drop_timeout()
+
+        if self._tail:
+            data, self._tail = self._tail, b""
+            self.data_received(data)
+
+    def set_response_params(
+        self,
+        *,
+        timer: Optional[BaseTimerContext] = None,
+        skip_payload: bool = False,
+        read_until_eof: bool = False,
+        auto_decompress: bool = True,
+        read_timeout: Optional[float] = None,
+        read_bufsize: int = 2**16,
+        timeout_ceil_threshold: float = 5,
+        max_line_size: int = 8190,
+        max_field_size: int = 8190,
+    ) -> None:
+        self._skip_payload = skip_payload
+
+        self._read_timeout = read_timeout
+
+        self._timeout_ceil_threshold = timeout_ceil_threshold
+
+        self._parser = HttpResponseParser(
+            self,
+            self._loop,
+            read_bufsize,
+            timer=timer,
+            payload_exception=ClientPayloadError,
+            response_with_body=not skip_payload,
+            read_until_eof=read_until_eof,
+            auto_decompress=auto_decompress,
+            max_line_size=max_line_size,
+            max_field_size=max_field_size,
+        )
+
+        if self._tail:
+            data, self._tail = self._tail, b""
+            self.data_received(data)
+
+    def _drop_timeout(self) -> None:
+        if self._read_timeout_handle is not None:
+            self._read_timeout_handle.cancel()
+            self._read_timeout_handle = None
+
+    def _reschedule_timeout(self) -> None:
+        timeout = self._read_timeout
+        if self._read_timeout_handle is not None:
+            self._read_timeout_handle.cancel()
+
+        if timeout:
+            self._read_timeout_handle = self._loop.call_later(
+                timeout, self._on_read_timeout
+            )
+        else:
+            self._read_timeout_handle = None
+
+    def start_timeout(self) -> None:
+        self._reschedule_timeout()
+
+    @property
+    def read_timeout(self) -> Optional[float]:
+        return self._read_timeout
+
+    @read_timeout.setter
+    def read_timeout(self, read_timeout: Optional[float]) -> None:
+        self._read_timeout = read_timeout
+
+    def _on_read_timeout(self) -> None:
+        exc = SocketTimeoutError("Timeout on reading data from socket")
+        self.set_exception(exc)
+        if self._payload is not None:
+            set_exception(self._payload, exc)
+
+    def data_received(self, data: bytes) -> None:
+        self._reschedule_timeout()
+
+        if not data:
+            return
+
+        # custom payload parser - currently always WebSocketReader
+        if self._payload_parser is not None:
+            eof, tail = self._payload_parser.feed_data(data)
+            if eof:
+                self._payload = None
+                self._payload_parser = None
+
+                if tail:
+                    self.data_received(tail)
+            return
+
+        if self._upgraded or self._parser is None:
+            # i.e. websocket connection, websocket parser is not set yet
+            self._tail += data
+            return
+
+        # parse http messages
+        try:
+            messages, upgraded, tail = self._parser.feed_data(data)
+        except BaseException as underlying_exc:
+            if self.transport is not None:
+                # connection.release() could be called BEFORE
+                # data_received(), the transport is already
+                # closed in this case
+                self.transport.close()
+            # should_close is True after the call
+            if isinstance(underlying_exc, HttpProcessingError):
+                exc = HttpProcessingError(
+                    code=underlying_exc.code,
+                    message=underlying_exc.message,
+                    headers=underlying_exc.headers,
+                )
+            else:
+                exc = HttpProcessingError()
+            self.set_exception(exc, underlying_exc)
+            return
+
+        self._upgraded = upgraded
+
+        payload: Optional[StreamReader] = None
+        for message, payload in messages:
+            if message.should_close:
+                self._should_close = True
+
+            self._payload = payload
+
+            if self._skip_payload or message.code in EMPTY_BODY_STATUS_CODES:
+                self.feed_data((message, EMPTY_PAYLOAD), 0)
+            else:
+                self.feed_data((message, payload), 0)
+
+        if payload is not None:
+            # new message(s) was processed
+            # register timeout handler unsubscribing
+            # either on end-of-stream or immediately for
+            # EMPTY_PAYLOAD
+            if payload is not EMPTY_PAYLOAD:
+                payload.on_eof(self._drop_timeout)
+            else:
+                self._drop_timeout()
+
+        if upgraded and tail:
+            self.data_received(tail)

deepseek/lib/python3.10/site-packages/aiohttp/compression_utils.py

@@ -0,0 +1,173 @@
+import asyncio
+import zlib
+from concurrent.futures import Executor
+from typing import Optional, cast
+
+try:
+    try:
+        import brotlicffi as brotli
+    except ImportError:
+        import brotli
+
+    HAS_BROTLI = True
+except ImportError:  # pragma: no cover
+    HAS_BROTLI = False
+
+MAX_SYNC_CHUNK_SIZE = 1024
+
+
+def encoding_to_mode(
+    encoding: Optional[str] = None,
+    suppress_deflate_header: bool = False,
+) -> int:
+    if encoding == "gzip":
+        return 16 + zlib.MAX_WBITS
+
+    return -zlib.MAX_WBITS if suppress_deflate_header else zlib.MAX_WBITS
+
+
+class ZlibBaseHandler:
+    def __init__(
+        self,
+        mode: int,
+        executor: Optional[Executor] = None,
+        max_sync_chunk_size: Optional[int] = MAX_SYNC_CHUNK_SIZE,
+    ):
+        self._mode = mode
+        self._executor = executor
+        self._max_sync_chunk_size = max_sync_chunk_size
+
+
+class ZLibCompressor(ZlibBaseHandler):
+    def __init__(
+        self,
+        encoding: Optional[str] = None,
+        suppress_deflate_header: bool = False,
+        level: Optional[int] = None,
+        wbits: Optional[int] = None,
+        strategy: int = zlib.Z_DEFAULT_STRATEGY,
+        executor: Optional[Executor] = None,
+        max_sync_chunk_size: Optional[int] = MAX_SYNC_CHUNK_SIZE,
+    ):
+        super().__init__(
+            mode=(
+                encoding_to_mode(encoding, suppress_deflate_header)
+                if wbits is None
+                else wbits
+            ),
+            executor=executor,
+            max_sync_chunk_size=max_sync_chunk_size,
+        )
+        if level is None:
+            self._compressor = zlib.compressobj(wbits=self._mode, strategy=strategy)
+        else:
+            self._compressor = zlib.compressobj(
+                wbits=self._mode, strategy=strategy, level=level
+            )
+        self._compress_lock = asyncio.Lock()
+
+    def compress_sync(self, data: bytes) -> bytes:
+        return self._compressor.compress(data)
+
+    async def compress(self, data: bytes) -> bytes:
+        """Compress the data and returned the compressed bytes.
+
+        Note that flush() must be called after the last call to compress()
+
+        If the data size is large than the max_sync_chunk_size, the compression
+        will be done in the executor. Otherwise, the compression will be done
+        in the event loop.
+        """
+        async with self._compress_lock:
+            # To ensure the stream is consistent in the event
+            # there are multiple writers, we need to lock
+            # the compressor so that only one writer can
+            # compress at a time.
+            if (
+                self._max_sync_chunk_size is not None
+                and len(data) > self._max_sync_chunk_size
+            ):
+                return await asyncio.get_running_loop().run_in_executor(
+                    self._executor, self._compressor.compress, data
+                )
+            return self.compress_sync(data)
+
+    def flush(self, mode: int = zlib.Z_FINISH) -> bytes:
+        return self._compressor.flush(mode)
+
+
+class ZLibDecompressor(ZlibBaseHandler):
+    def __init__(
+        self,
+        encoding: Optional[str] = None,
+        suppress_deflate_header: bool = False,
+        executor: Optional[Executor] = None,
+        max_sync_chunk_size: Optional[int] = MAX_SYNC_CHUNK_SIZE,
+    ):
+        super().__init__(
+            mode=encoding_to_mode(encoding, suppress_deflate_header),
+            executor=executor,
+            max_sync_chunk_size=max_sync_chunk_size,
+        )
+        self._decompressor = zlib.decompressobj(wbits=self._mode)
+
+    def decompress_sync(self, data: bytes, max_length: int = 0) -> bytes:
+        return self._decompressor.decompress(data, max_length)
+
+    async def decompress(self, data: bytes, max_length: int = 0) -> bytes:
+        """Decompress the data and return the decompressed bytes.
+
+        If the data size is large than the max_sync_chunk_size, the decompression
+        will be done in the executor. Otherwise, the decompression will be done
+        in the event loop.
+        """
+        if (
+            self._max_sync_chunk_size is not None
+            and len(data) > self._max_sync_chunk_size
+        ):
+            return await asyncio.get_running_loop().run_in_executor(
+                self._executor, self._decompressor.decompress, data, max_length
+            )
+        return self.decompress_sync(data, max_length)
+
+    def flush(self, length: int = 0) -> bytes:
+        return (
+            self._decompressor.flush(length)
+            if length > 0
+            else self._decompressor.flush()
+        )
+
+    @property
+    def eof(self) -> bool:
+        return self._decompressor.eof
+
+    @property
+    def unconsumed_tail(self) -> bytes:
+        return self._decompressor.unconsumed_tail
+
+    @property
+    def unused_data(self) -> bytes:
+        return self._decompressor.unused_data
+
+
+class BrotliDecompressor:
+    # Supports both 'brotlipy' and 'Brotli' packages
+    # since they share an import name. The top branches
+    # are for 'brotlipy' and bottom branches for 'Brotli'
+    def __init__(self) -> None:
+        if not HAS_BROTLI:
+            raise RuntimeError(
+                "The brotli decompression is not available. "
+                "Please install `Brotli` module"
+            )
+        self._obj = brotli.Decompressor()
+
+    def decompress_sync(self, data: bytes) -> bytes:
+        if hasattr(self._obj, "decompress"):
+            return cast(bytes, self._obj.decompress(data))
+        return cast(bytes, self._obj.process(data))
+
+    def flush(self) -> bytes:
+        if hasattr(self._obj, "flush"):
+            return cast(bytes, self._obj.flush())
+        return b""

deepseek/lib/python3.10/site-packages/aiohttp/connector.py

@@ -0,0 +1,1646 @@
+import asyncio
+import functools
+import random
+import socket
+import sys
+import traceback
+import warnings
+from collections import OrderedDict, defaultdict, deque
+from contextlib import suppress
+from http import HTTPStatus
+from itertools import chain, cycle, islice
+from time import monotonic
+from types import TracebackType
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Awaitable,
+    Callable,
+    DefaultDict,
+    Deque,
+    Dict,
+    Iterator,
+    List,
+    Literal,
+    Optional,
+    Sequence,
+    Set,
+    Tuple,
+    Type,
+    Union,
+    cast,
+)
+
+import aiohappyeyeballs
+
+from . import hdrs, helpers
+from .abc import AbstractResolver, ResolveResult
+from .client_exceptions import (
+    ClientConnectionError,
+    ClientConnectorCertificateError,
+    ClientConnectorDNSError,
+    ClientConnectorError,
+    ClientConnectorSSLError,
+    ClientHttpProxyError,
+    ClientProxyConnectionError,
+    ServerFingerprintMismatch,
+    UnixClientConnectorError,
+    cert_errors,
+    ssl_errors,
+)
+from .client_proto import ResponseHandler
+from .client_reqrep import ClientRequest, Fingerprint, _merge_ssl_params
+from .helpers import (
+    ceil_timeout,
+    is_ip_address,
+    noop,
+    sentinel,
+    set_exception,
+    set_result,
+)
+from .resolver import DefaultResolver
+
+try:
+    import ssl
+
+    SSLContext = ssl.SSLContext
+except ImportError:  # pragma: no cover
+    ssl = None  # type: ignore[assignment]
+    SSLContext = object  # type: ignore[misc,assignment]
+
+
+EMPTY_SCHEMA_SET = frozenset({""})
+HTTP_SCHEMA_SET = frozenset({"http", "https"})
+WS_SCHEMA_SET = frozenset({"ws", "wss"})
+
+HTTP_AND_EMPTY_SCHEMA_SET = HTTP_SCHEMA_SET | EMPTY_SCHEMA_SET
+HIGH_LEVEL_SCHEMA_SET = HTTP_AND_EMPTY_SCHEMA_SET | WS_SCHEMA_SET
+
+NEEDS_CLEANUP_CLOSED = (3, 13, 0) <= sys.version_info < (
+    3,
+    13,
+    1,
+) or sys.version_info < (3, 12, 7)
+# Cleanup closed is no longer needed after https://github.com/python/cpython/pull/118960
+# which first appeared in Python 3.12.7 and 3.13.1
+
+
+__all__ = ("BaseConnector", "TCPConnector", "UnixConnector", "NamedPipeConnector")
+
+
+if TYPE_CHECKING:
+    from .client import ClientTimeout
+    from .client_reqrep import ConnectionKey
+    from .tracing import Trace
+
+
+class _DeprecationWaiter:
+    __slots__ = ("_awaitable", "_awaited")
+
+    def __init__(self, awaitable: Awaitable[Any]) -> None:
+        self._awaitable = awaitable
+        self._awaited = False
+
+    def __await__(self) -> Any:
+        self._awaited = True
+        return self._awaitable.__await__()
+
+    def __del__(self) -> None:
+        if not self._awaited:
+            warnings.warn(
+                "Connector.close() is a coroutine, "
+                "please use await connector.close()",
+                DeprecationWarning,
+            )
+
+
+class Connection:
+
+    _source_traceback = None
+
+    def __init__(
+        self,
+        connector: "BaseConnector",
+        key: "ConnectionKey",
+        protocol: ResponseHandler,
+        loop: asyncio.AbstractEventLoop,
+    ) -> None:
+        self._key = key
+        self._connector = connector
+        self._loop = loop
+        self._protocol: Optional[ResponseHandler] = protocol
+        self._callbacks: List[Callable[[], None]] = []
+
+        if loop.get_debug():
+            self._source_traceback = traceback.extract_stack(sys._getframe(1))
+
+    def __repr__(self) -> str:
+        return f"Connection<{self._key}>"
+
+    def __del__(self, _warnings: Any = warnings) -> None:
+        if self._protocol is not None:
+            kwargs = {"source": self}
+            _warnings.warn(f"Unclosed connection {self!r}", ResourceWarning, **kwargs)
+            if self._loop.is_closed():
+                return
+
+            self._connector._release(self._key, self._protocol, should_close=True)
+
+            context = {"client_connection": self, "message": "Unclosed connection"}
+            if self._source_traceback is not None:
+                context["source_traceback"] = self._source_traceback
+            self._loop.call_exception_handler(context)
+
+    def __bool__(self) -> Literal[True]:
+        """Force subclasses to not be falsy, to make checks simpler."""
+        return True
+
+    @property
+    def loop(self) -> asyncio.AbstractEventLoop:
+        warnings.warn(
+            "connector.loop property is deprecated", DeprecationWarning, stacklevel=2
+        )
+        return self._loop
+
+    @property
+    def transport(self) -> Optional[asyncio.Transport]:
+        if self._protocol is None:
+            return None
+        return self._protocol.transport
+
+    @property
+    def protocol(self) -> Optional[ResponseHandler]:
+        return self._protocol
+
+    def add_callback(self, callback: Callable[[], None]) -> None:
+        if callback is not None:
+            self._callbacks.append(callback)
+
+    def _notify_release(self) -> None:
+        callbacks, self._callbacks = self._callbacks[:], []
+
+        for cb in callbacks:
+            with suppress(Exception):
+                cb()
+
+    def close(self) -> None:
+        self._notify_release()
+
+        if self._protocol is not None:
+            self._connector._release(self._key, self._protocol, should_close=True)
+            self._protocol = None
+
+    def release(self) -> None:
+        self._notify_release()
+
+        if self._protocol is not None:
+            self._connector._release(self._key, self._protocol)
+            self._protocol = None
+
+    @property
+    def closed(self) -> bool:
+        return self._protocol is None or not self._protocol.is_connected()
+
+
+class _TransportPlaceholder:
+    """placeholder for BaseConnector.connect function"""
+
+    __slots__ = ()
+
+    def close(self) -> None:
+        """Close the placeholder transport."""
+
+
+class BaseConnector:
+    """Base connector class.
+
+    keepalive_timeout - (optional) Keep-alive timeout.
+    force_close - Set to True to force close and do reconnect
+        after each request (and between redirects).
+    limit - The total number of simultaneous connections.
+    limit_per_host - Number of simultaneous connections to one host.
+    enable_cleanup_closed - Enables clean-up closed ssl transports.
+                            Disabled by default.
+    timeout_ceil_threshold - Trigger ceiling of timeout values when
+                             it's above timeout_ceil_threshold.
+    loop - Optional event loop.
+    """
+
+    _closed = True  # prevent AttributeError in __del__ if ctor was failed
+    _source_traceback = None
+
+    # abort transport after 2 seconds (cleanup broken connections)
+    _cleanup_closed_period = 2.0
+
+    allowed_protocol_schema_set = HIGH_LEVEL_SCHEMA_SET
+
+    def __init__(
+        self,
+        *,
+        keepalive_timeout: Union[object, None, float] = sentinel,
+        force_close: bool = False,
+        limit: int = 100,
+        limit_per_host: int = 0,
+        enable_cleanup_closed: bool = False,
+        loop: Optional[asyncio.AbstractEventLoop] = None,
+        timeout_ceil_threshold: float = 5,
+    ) -> None:
+
+        if force_close:
+            if keepalive_timeout is not None and keepalive_timeout is not sentinel:
+                raise ValueError(
+                    "keepalive_timeout cannot be set if force_close is True"
+                )
+        else:
+            if keepalive_timeout is sentinel:
+                keepalive_timeout = 15.0
+
+        loop = loop or asyncio.get_running_loop()
+        self._timeout_ceil_threshold = timeout_ceil_threshold
+
+        self._closed = False
+        if loop.get_debug():
+            self._source_traceback = traceback.extract_stack(sys._getframe(1))
+
+        # Connection pool of reusable connections.
+        # We use a deque to store connections because it has O(1) popleft()
+        # and O(1) append() operations to implement a FIFO queue.
+        self._conns: DefaultDict[
+            ConnectionKey, Deque[Tuple[ResponseHandler, float]]
+        ] = defaultdict(deque)
+        self._limit = limit
+        self._limit_per_host = limit_per_host
+        self._acquired: Set[ResponseHandler] = set()
+        self._acquired_per_host: DefaultDict[ConnectionKey, Set[ResponseHandler]] = (
+            defaultdict(set)
+        )
+        self._keepalive_timeout = cast(float, keepalive_timeout)
+        self._force_close = force_close
+
+        # {host_key: FIFO list of waiters}
+        # The FIFO is implemented with an OrderedDict with None keys because
+        # python does not have an ordered set.
+        self._waiters: DefaultDict[
+            ConnectionKey, OrderedDict[asyncio.Future[None], None]
+        ] = defaultdict(OrderedDict)
+
+        self._loop = loop
+        self._factory = functools.partial(ResponseHandler, loop=loop)
+
+        # start keep-alive connection cleanup task
+        self._cleanup_handle: Optional[asyncio.TimerHandle] = None
+
+        # start cleanup closed transports task
+        self._cleanup_closed_handle: Optional[asyncio.TimerHandle] = None
+
+        if enable_cleanup_closed and not NEEDS_CLEANUP_CLOSED:
+            warnings.warn(
+                "enable_cleanup_closed ignored because "
+                "https://github.com/python/cpython/pull/118960 is fixed "
+                f"in Python version {sys.version_info}",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+            enable_cleanup_closed = False
+
+        self._cleanup_closed_disabled = not enable_cleanup_closed
+        self._cleanup_closed_transports: List[Optional[asyncio.Transport]] = []
+        self._cleanup_closed()
+
+    def __del__(self, _warnings: Any = warnings) -> None:
+        if self._closed:
+            return
+        if not self._conns:
+            return
+
+        conns = [repr(c) for c in self._conns.values()]
+
+        self._close()
+
+        kwargs = {"source": self}
+        _warnings.warn(f"Unclosed connector {self!r}", ResourceWarning, **kwargs)
+        context = {
+            "connector": self,
+            "connections": conns,
+            "message": "Unclosed connector",
+        }
+        if self._source_traceback is not None:
+            context["source_traceback"] = self._source_traceback
+        self._loop.call_exception_handler(context)
+
+    def __enter__(self) -> "BaseConnector":
+        warnings.warn(
+            '"with Connector():" is deprecated, '
+            'use "async with Connector():" instead',
+            DeprecationWarning,
+        )
+        return self
+
+    def __exit__(self, *exc: Any) -> None:
+        self._close()
+
+    async def __aenter__(self) -> "BaseConnector":
+        return self
+
+    async def __aexit__(
+        self,
+        exc_type: Optional[Type[BaseException]] = None,
+        exc_value: Optional[BaseException] = None,
+        exc_traceback: Optional[TracebackType] = None,
+    ) -> None:
+        await self.close()
+
+    @property
+    def force_close(self) -> bool:
+        """Ultimately close connection on releasing if True."""
+        return self._force_close
+
+    @property
+    def limit(self) -> int:
+        """The total number for simultaneous connections.
+
+        If limit is 0 the connector has no limit.
+        The default limit size is 100.
+        """
+        return self._limit
+
+    @property
+    def limit_per_host(self) -> int:
+        """The limit for simultaneous connections to the same endpoint.
+
+        Endpoints are the same if they are have equal
+        (host, port, is_ssl) triple.
+        """
+        return self._limit_per_host
+
+    def _cleanup(self) -> None:
+        """Cleanup unused transports."""
+        if self._cleanup_handle:
+            self._cleanup_handle.cancel()
+            # _cleanup_handle should be unset, otherwise _release() will not
+            # recreate it ever!
+            self._cleanup_handle = None
+
+        now = monotonic()
+        timeout = self._keepalive_timeout
+
+        if self._conns:
+            connections = defaultdict(deque)
+            deadline = now - timeout
+            for key, conns in self._conns.items():
+                alive: Deque[Tuple[ResponseHandler, float]] = deque()
+                for proto, use_time in conns:
+                    if proto.is_connected() and use_time - deadline >= 0:
+                        alive.append((proto, use_time))
+                        continue
+                    transport = proto.transport
+                    proto.close()
+                    if not self._cleanup_closed_disabled and key.is_ssl:
+                        self._cleanup_closed_transports.append(transport)
+
+                if alive:
+                    connections[key] = alive
+
+            self._conns = connections
+
+        if self._conns:
+            self._cleanup_handle = helpers.weakref_handle(
+                self,
+                "_cleanup",
+                timeout,
+                self._loop,
+                timeout_ceil_threshold=self._timeout_ceil_threshold,
+            )
+
+    def _cleanup_closed(self) -> None:
+        """Double confirmation for transport close.
+
+        Some broken ssl servers may leave socket open without proper close.
+        """
+        if self._cleanup_closed_handle:
+            self._cleanup_closed_handle.cancel()
+
+        for transport in self._cleanup_closed_transports:
+            if transport is not None:
+                transport.abort()
+
+        self._cleanup_closed_transports = []
+
+        if not self._cleanup_closed_disabled:
+            self._cleanup_closed_handle = helpers.weakref_handle(
+                self,
+                "_cleanup_closed",
+                self._cleanup_closed_period,
+                self._loop,
+                timeout_ceil_threshold=self._timeout_ceil_threshold,
+            )
+
+    def close(self) -> Awaitable[None]:
+        """Close all opened transports."""
+        self._close()
+        return _DeprecationWaiter(noop())
+
+    def _close(self) -> None:
+        if self._closed:
+            return
+
+        self._closed = True
+
+        try:
+            if self._loop.is_closed():
+                return
+
+            # cancel cleanup task
+            if self._cleanup_handle:
+                self._cleanup_handle.cancel()
+
+            # cancel cleanup close task
+            if self._cleanup_closed_handle:
+                self._cleanup_closed_handle.cancel()
+
+            for data in self._conns.values():
+                for proto, t0 in data:
+                    proto.close()
+
+            for proto in self._acquired:
+                proto.close()
+
+            for transport in self._cleanup_closed_transports:
+                if transport is not None:
+                    transport.abort()
+
+        finally:
+            self._conns.clear()
+            self._acquired.clear()
+            for keyed_waiters in self._waiters.values():
+                for keyed_waiter in keyed_waiters:
+                    keyed_waiter.cancel()
+            self._waiters.clear()
+            self._cleanup_handle = None
+            self._cleanup_closed_transports.clear()
+            self._cleanup_closed_handle = None
+
+    @property
+    def closed(self) -> bool:
+        """Is connector closed.
+
+        A readonly property.
+        """
+        return self._closed
+
+    def _available_connections(self, key: "ConnectionKey") -> int:
+        """
+        Return number of available connections.
+
+        The limit, limit_per_host and the connection key are taken into account.
+
+        If it returns less than 1 means that there are no connections
+        available.
+        """
+        # check total available connections
+        # If there are no limits, this will always return 1
+        total_remain = 1
+
+        if self._limit and (total_remain := self._limit - len(self._acquired)) <= 0:
+            return total_remain
+
+        # check limit per host
+        if host_remain := self._limit_per_host:
+            if acquired := self._acquired_per_host.get(key):
+                host_remain -= len(acquired)
+            if total_remain > host_remain:
+                return host_remain
+
+        return total_remain
+
+    async def connect(
+        self, req: ClientRequest, traces: List["Trace"], timeout: "ClientTimeout"
+    ) -> Connection:
+        """Get from pool or create new connection."""
+        key = req.connection_key
+        if (conn := await self._get(key, traces)) is not None:
+            # If we do not have to wait and we can get a connection from the pool
+            # we can avoid the timeout ceil logic and directly return the connection
+            return conn
+
+        async with ceil_timeout(timeout.connect, timeout.ceil_threshold):
+            if self._available_connections(key) <= 0:
+                await self._wait_for_available_connection(key, traces)
+                if (conn := await self._get(key, traces)) is not None:
+                    return conn
+
+            placeholder = cast(ResponseHandler, _TransportPlaceholder())
+            self._acquired.add(placeholder)
+            if self._limit_per_host:
+                self._acquired_per_host[key].add(placeholder)
+
+            try:
+                # Traces are done inside the try block to ensure that the
+                # that the placeholder is still cleaned up if an exception
+                # is raised.
+                if traces:
+                    for trace in traces:
+                        await trace.send_connection_create_start()
+                proto = await self._create_connection(req, traces, timeout)
+                if traces:
+                    for trace in traces:
+                        await trace.send_connection_create_end()
+            except BaseException:
+                self._release_acquired(key, placeholder)
+                raise
+            else:
+                if self._closed:
+                    proto.close()
+                    raise ClientConnectionError("Connector is closed.")
+
+        # The connection was successfully created, drop the placeholder
+        # and add the real connection to the acquired set. There should
+        # be no awaits after the proto is added to the acquired set
+        # to ensure that the connection is not left in the acquired set
+        # on cancellation.
+        self._acquired.remove(placeholder)
+        self._acquired.add(proto)
+        if self._limit_per_host:
+            acquired_per_host = self._acquired_per_host[key]
+            acquired_per_host.remove(placeholder)
+            acquired_per_host.add(proto)
+        return Connection(self, key, proto, self._loop)
+
+    async def _wait_for_available_connection(
+        self, key: "ConnectionKey", traces: List["Trace"]
+    ) -> None:
+        """Wait for an available connection slot."""
+        # We loop here because there is a race between
+        # the connection limit check and the connection
+        # being acquired. If the connection is acquired
+        # between the check and the await statement, we
+        # need to loop again to check if the connection
+        # slot is still available.
+        attempts = 0
+        while True:
+            fut: asyncio.Future[None] = self._loop.create_future()
+            keyed_waiters = self._waiters[key]
+            keyed_waiters[fut] = None
+            if attempts:
+                # If we have waited before, we need to move the waiter
+                # to the front of the queue as otherwise we might get
+                # starved and hit the timeout.
+                keyed_waiters.move_to_end(fut, last=False)
+
+            try:
+                # Traces happen in the try block to ensure that the
+                # the waiter is still cleaned up if an exception is raised.
+                if traces:
+                    for trace in traces:
+                        await trace.send_connection_queued_start()
+                await fut
+                if traces:
+                    for trace in traces:
+                        await trace.send_connection_queued_end()
+            finally:
+                # pop the waiter from the queue if its still
+                # there and not already removed by _release_waiter
+                keyed_waiters.pop(fut, None)
+                if not self._waiters.get(key, True):
+                    del self._waiters[key]
+
+            if self._available_connections(key) > 0:
+                break
+            attempts += 1
+
+    async def _get(
+        self, key: "ConnectionKey", traces: List["Trace"]
+    ) -> Optional[Connection]:
+        """Get next reusable connection for the key or None.
+
+        The connection will be marked as acquired.
+        """
+        if (conns := self._conns.get(key)) is None:
+            return None
+
+        t1 = monotonic()
+        while conns:
+            proto, t0 = conns.popleft()
+            # We will we reuse the connection if its connected and
+            # the keepalive timeout has not been exceeded
+            if proto.is_connected() and t1 - t0 <= self._keepalive_timeout:
+                if not conns:
+                    # The very last connection was reclaimed: drop the key
+                    del self._conns[key]
+                self._acquired.add(proto)
+                if self._limit_per_host:
+                    self._acquired_per_host[key].add(proto)
+                if traces:
+                    for trace in traces:
+                        try:
+                            await trace.send_connection_reuseconn()
+                        except BaseException:
+                            self._release_acquired(key, proto)
+                            raise
+                return Connection(self, key, proto, self._loop)
+
+            # Connection cannot be reused, close it
+            transport = proto.transport
+            proto.close()
+            # only for SSL transports
+            if not self._cleanup_closed_disabled and key.is_ssl:
+                self._cleanup_closed_transports.append(transport)
+
+        # No more connections: drop the key
+        del self._conns[key]
+        return None
+
+    def _release_waiter(self) -> None:
+        """
+        Iterates over all waiters until one to be released is found.
+
+        The one to be released is not finished and
+        belongs to a host that has available connections.
+        """
+        if not self._waiters:
+            return
+
+        # Having the dict keys ordered this avoids to iterate
+        # at the same order at each call.
+        queues = list(self._waiters)
+        random.shuffle(queues)
+
+        for key in queues:
+            if self._available_connections(key) < 1:
+                continue
+
+            waiters = self._waiters[key]
+            while waiters:
+                waiter, _ = waiters.popitem(last=False)
+                if not waiter.done():
+                    waiter.set_result(None)
+                    return
+
+    def _release_acquired(self, key: "ConnectionKey", proto: ResponseHandler) -> None:
+        """Release acquired connection."""
+        if self._closed:
+            # acquired connection is already released on connector closing
+            return
+
+        self._acquired.discard(proto)
+        if self._limit_per_host and (conns := self._acquired_per_host.get(key)):
+            conns.discard(proto)
+            if not conns:
+                del self._acquired_per_host[key]
+        self._release_waiter()
+
+    def _release(
+        self,
+        key: "ConnectionKey",
+        protocol: ResponseHandler,
+        *,
+        should_close: bool = False,
+    ) -> None:
+        if self._closed:
+            # acquired connection is already released on connector closing
+            return
+
+        self._release_acquired(key, protocol)
+
+        if self._force_close or should_close or protocol.should_close:
+            transport = protocol.transport
+            protocol.close()
+
+            if key.is_ssl and not self._cleanup_closed_disabled:
+                self._cleanup_closed_transports.append(transport)
+            return
+
+        self._conns[key].append((protocol, monotonic()))
+
+        if self._cleanup_handle is None:
+            self._cleanup_handle = helpers.weakref_handle(
+                self,
+                "_cleanup",
+                self._keepalive_timeout,
+                self._loop,
+                timeout_ceil_threshold=self._timeout_ceil_threshold,
+            )
+
+    async def _create_connection(
+        self, req: ClientRequest, traces: List["Trace"], timeout: "ClientTimeout"
+    ) -> ResponseHandler:
+        raise NotImplementedError()
+
+
+class _DNSCacheTable:
+    def __init__(self, ttl: Optional[float] = None) -> None:
+        self._addrs_rr: Dict[Tuple[str, int], Tuple[Iterator[ResolveResult], int]] = {}
+        self._timestamps: Dict[Tuple[str, int], float] = {}
+        self._ttl = ttl
+
+    def __contains__(self, host: object) -> bool:
+        return host in self._addrs_rr
+
+    def add(self, key: Tuple[str, int], addrs: List[ResolveResult]) -> None:
+        self._addrs_rr[key] = (cycle(addrs), len(addrs))
+
+        if self._ttl is not None:
+            self._timestamps[key] = monotonic()
+
+    def remove(self, key: Tuple[str, int]) -> None:
+        self._addrs_rr.pop(key, None)
+
+        if self._ttl is not None:
+            self._timestamps.pop(key, None)
+
+    def clear(self) -> None:
+        self._addrs_rr.clear()
+        self._timestamps.clear()
+
+    def next_addrs(self, key: Tuple[str, int]) -> List[ResolveResult]:
+        loop, length = self._addrs_rr[key]
+        addrs = list(islice(loop, length))
+        # Consume one more element to shift internal state of `cycle`
+        next(loop)
+        return addrs
+
+    def expired(self, key: Tuple[str, int]) -> bool:
+        if self._ttl is None:
+            return False
+
+        return self._timestamps[key] + self._ttl < monotonic()
+
+
+def _make_ssl_context(verified: bool) -> SSLContext:
+    """Create SSL context.
+
+    This method is not async-friendly and should be called from a thread
+    because it will load certificates from disk and do other blocking I/O.
+    """
+    if ssl is None:
+        # No ssl support
+        return None
+    if verified:
+        return ssl.create_default_context()
+    sslcontext = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
+    sslcontext.options |= ssl.OP_NO_SSLv2
+    sslcontext.options |= ssl.OP_NO_SSLv3
+    sslcontext.check_hostname = False
+    sslcontext.verify_mode = ssl.CERT_NONE
+    sslcontext.options |= ssl.OP_NO_COMPRESSION
+    sslcontext.set_default_verify_paths()
+    return sslcontext
+
+
+# The default SSLContext objects are created at import time
+# since they do blocking I/O to load certificates from disk,
+# and imports should always be done before the event loop starts
+# or in a thread.
+_SSL_CONTEXT_VERIFIED = _make_ssl_context(True)
+_SSL_CONTEXT_UNVERIFIED = _make_ssl_context(False)
+
+
+class TCPConnector(BaseConnector):
+    """TCP connector.
+
+    verify_ssl - Set to True to check ssl certifications.
+    fingerprint - Pass the binary sha256
+        digest of the expected certificate in DER format to verify
+        that the certificate the server presents matches. See also
+        https://en.wikipedia.org/wiki/HTTP_Public_Key_Pinning
+    resolver - Enable DNS lookups and use this
+        resolver
+    use_dns_cache - Use memory cache for DNS lookups.
+    ttl_dns_cache - Max seconds having cached a DNS entry, None forever.
+    family - socket address family
+    local_addr - local tuple of (host, port) to bind socket to
+
+    keepalive_timeout - (optional) Keep-alive timeout.
+    force_close - Set to True to force close and do reconnect
+        after each request (and between redirects).
+    limit - The total number of simultaneous connections.
+    limit_per_host - Number of simultaneous connections to one host.
+    enable_cleanup_closed - Enables clean-up closed ssl transports.
+                            Disabled by default.
+    happy_eyeballs_delay - This is the “Connection Attempt Delay”
+                           as defined in RFC 8305. To disable
+                           the happy eyeballs algorithm, set to None.
+    interleave - “First Address Family Count” as defined in RFC 8305
+    loop - Optional event loop.
+    """
+
+    allowed_protocol_schema_set = HIGH_LEVEL_SCHEMA_SET | frozenset({"tcp"})
+
+    def __init__(
+        self,
+        *,
+        verify_ssl: bool = True,
+        fingerprint: Optional[bytes] = None,
+        use_dns_cache: bool = True,
+        ttl_dns_cache: Optional[int] = 10,
+        family: socket.AddressFamily = socket.AddressFamily.AF_UNSPEC,
+        ssl_context: Optional[SSLContext] = None,
+        ssl: Union[bool, Fingerprint, SSLContext] = True,
+        local_addr: Optional[Tuple[str, int]] = None,
+        resolver: Optional[AbstractResolver] = None,
+        keepalive_timeout: Union[None, float, object] = sentinel,
+        force_close: bool = False,
+        limit: int = 100,
+        limit_per_host: int = 0,
+        enable_cleanup_closed: bool = False,
+        loop: Optional[asyncio.AbstractEventLoop] = None,
+        timeout_ceil_threshold: float = 5,
+        happy_eyeballs_delay: Optional[float] = 0.25,
+        interleave: Optional[int] = None,
+    ):
+        super().__init__(
+            keepalive_timeout=keepalive_timeout,
+            force_close=force_close,
+            limit=limit,
+            limit_per_host=limit_per_host,
+            enable_cleanup_closed=enable_cleanup_closed,
+            loop=loop,
+            timeout_ceil_threshold=timeout_ceil_threshold,
+        )
+
+        self._ssl = _merge_ssl_params(ssl, verify_ssl, ssl_context, fingerprint)
+        if resolver is None:
+            resolver = DefaultResolver(loop=self._loop)
+        self._resolver = resolver
+
+        self._use_dns_cache = use_dns_cache
+        self._cached_hosts = _DNSCacheTable(ttl=ttl_dns_cache)
+        self._throttle_dns_futures: Dict[
+            Tuple[str, int], Set["asyncio.Future[None]"]
+        ] = {}
+        self._family = family
+        self._local_addr_infos = aiohappyeyeballs.addr_to_addr_infos(local_addr)
+        self._happy_eyeballs_delay = happy_eyeballs_delay
+        self._interleave = interleave
+        self._resolve_host_tasks: Set["asyncio.Task[List[ResolveResult]]"] = set()
+
+    def close(self) -> Awaitable[None]:
+        """Close all ongoing DNS calls."""
+        for fut in chain.from_iterable(self._throttle_dns_futures.values()):
+            fut.cancel()
+
+        for t in self._resolve_host_tasks:
+            t.cancel()
+
+        return super().close()
+
+    @property
+    def family(self) -> int:
+        """Socket family like AF_INET."""
+        return self._family
+
+    @property
+    def use_dns_cache(self) -> bool:
+        """True if local DNS caching is enabled."""
+        return self._use_dns_cache
+
+    def clear_dns_cache(
+        self, host: Optional[str] = None, port: Optional[int] = None
+    ) -> None:
+        """Remove specified host/port or clear all dns local cache."""
+        if host is not None and port is not None:
+            self._cached_hosts.remove((host, port))
+        elif host is not None or port is not None:
+            raise ValueError("either both host and port or none of them are allowed")
+        else:
+            self._cached_hosts.clear()
+
+    async def _resolve_host(
+        self, host: str, port: int, traces: Optional[Sequence["Trace"]] = None
+    ) -> List[ResolveResult]:
+        """Resolve host and return list of addresses."""
+        if is_ip_address(host):
+            return [
+                {
+                    "hostname": host,
+                    "host": host,
+                    "port": port,
+                    "family": self._family,
+                    "proto": 0,
+                    "flags": 0,
+                }
+            ]
+
+        if not self._use_dns_cache:
+
+            if traces:
+                for trace in traces:
+                    await trace.send_dns_resolvehost_start(host)
+
+            res = await self._resolver.resolve(host, port, family=self._family)
+
+            if traces:
+                for trace in traces:
+                    await trace.send_dns_resolvehost_end(host)
+
+            return res
+
+        key = (host, port)
+        if key in self._cached_hosts and not self._cached_hosts.expired(key):
+            # get result early, before any await (#4014)
+            result = self._cached_hosts.next_addrs(key)
+
+            if traces:
+                for trace in traces:
+                    await trace.send_dns_cache_hit(host)
+            return result
+
+        futures: Set["asyncio.Future[None]"]
+        #
+        # If multiple connectors are resolving the same host, we wait
+        # for the first one to resolve and then use the result for all of them.
+        # We use a throttle to ensure that we only resolve the host once
+        # and then use the result for all the waiters.
+        #
+        if key in self._throttle_dns_futures:
+            # get futures early, before any await (#4014)
+            futures = self._throttle_dns_futures[key]
+            future: asyncio.Future[None] = self._loop.create_future()
+            futures.add(future)
+            if traces:
+                for trace in traces:
+                    await trace.send_dns_cache_hit(host)
+            try:
+                await future
+            finally:
+                futures.discard(future)
+            return self._cached_hosts.next_addrs(key)
+
+        # update dict early, before any await (#4014)
+        self._throttle_dns_futures[key] = futures = set()
+        # In this case we need to create a task to ensure that we can shield
+        # the task from cancellation as cancelling this lookup should not cancel
+        # the underlying lookup or else the cancel event will get broadcast to
+        # all the waiters across all connections.
+        #
+        coro = self._resolve_host_with_throttle(key, host, port, futures, traces)
+        loop = asyncio.get_running_loop()
+        if sys.version_info >= (3, 12):
+            # Optimization for Python 3.12, try to send immediately
+            resolved_host_task = asyncio.Task(coro, loop=loop, eager_start=True)
+        else:
+            resolved_host_task = loop.create_task(coro)
+
+        if not resolved_host_task.done():
+            self._resolve_host_tasks.add(resolved_host_task)
+            resolved_host_task.add_done_callback(self._resolve_host_tasks.discard)
+
+        try:
+            return await asyncio.shield(resolved_host_task)
+        except asyncio.CancelledError:
+
+            def drop_exception(fut: "asyncio.Future[List[ResolveResult]]") -> None:
+                with suppress(Exception, asyncio.CancelledError):
+                    fut.result()
+
+            resolved_host_task.add_done_callback(drop_exception)
+            raise
+
+    async def _resolve_host_with_throttle(
+        self,
+        key: Tuple[str, int],
+        host: str,
+        port: int,
+        futures: Set["asyncio.Future[None]"],
+        traces: Optional[Sequence["Trace"]],
+    ) -> List[ResolveResult]:
+        """Resolve host and set result for all waiters.
+
+        This method must be run in a task and shielded from cancellation
+        to avoid cancelling the underlying lookup.
+        """
+        if traces:
+            for trace in traces:
+                await trace.send_dns_cache_miss(host)
+        try:
+            if traces:
+                for trace in traces:
+                    await trace.send_dns_resolvehost_start(host)
+
+            addrs = await self._resolver.resolve(host, port, family=self._family)
+            if traces:
+                for trace in traces:
+                    await trace.send_dns_resolvehost_end(host)
+
+            self._cached_hosts.add(key, addrs)
+            for fut in futures:
+                set_result(fut, None)
+        except BaseException as e:
+            # any DNS exception is set for the waiters to raise the same exception.
+            # This coro is always run in task that is shielded from cancellation so
+            # we should never be propagating cancellation here.
+            for fut in futures:
+                set_exception(fut, e)
+            raise
+        finally:
+            self._throttle_dns_futures.pop(key)
+
+        return self._cached_hosts.next_addrs(key)
+
+    async def _create_connection(
+        self, req: ClientRequest, traces: List["Trace"], timeout: "ClientTimeout"
+    ) -> ResponseHandler:
+        """Create connection.
+
+        Has same keyword arguments as BaseEventLoop.create_connection.
+        """
+        if req.proxy:
+            _, proto = await self._create_proxy_connection(req, traces, timeout)
+        else:
+            _, proto = await self._create_direct_connection(req, traces, timeout)
+
+        return proto
+
+    def _get_ssl_context(self, req: ClientRequest) -> Optional[SSLContext]:
+        """Logic to get the correct SSL context
+
+        0. if req.ssl is false, return None
+
+        1. if ssl_context is specified in req, use it
+        2. if _ssl_context is specified in self, use it
+        3. otherwise:
+            1. if verify_ssl is not specified in req, use self.ssl_context
+               (will generate a default context according to self.verify_ssl)
+            2. if verify_ssl is True in req, generate a default SSL context
+            3. if verify_ssl is False in req, generate a SSL context that
+               won't verify
+        """
+        if not req.is_ssl():
+            return None
+
+        if ssl is None:  # pragma: no cover
+            raise RuntimeError("SSL is not supported.")
+        sslcontext = req.ssl
+        if isinstance(sslcontext, ssl.SSLContext):
+            return sslcontext
+        if sslcontext is not True:
+            # not verified or fingerprinted
+            return _SSL_CONTEXT_UNVERIFIED
+        sslcontext = self._ssl
+        if isinstance(sslcontext, ssl.SSLContext):
+            return sslcontext
+        if sslcontext is not True:
+            # not verified or fingerprinted
+            return _SSL_CONTEXT_UNVERIFIED
+        return _SSL_CONTEXT_VERIFIED
+
+    def _get_fingerprint(self, req: ClientRequest) -> Optional["Fingerprint"]:
+        ret = req.ssl
+        if isinstance(ret, Fingerprint):
+            return ret
+        ret = self._ssl
+        if isinstance(ret, Fingerprint):
+            return ret
+        return None
+
+    async def _wrap_create_connection(
+        self,
+        *args: Any,
+        addr_infos: List[aiohappyeyeballs.AddrInfoType],
+        req: ClientRequest,
+        timeout: "ClientTimeout",
+        client_error: Type[Exception] = ClientConnectorError,
+        **kwargs: Any,
+    ) -> Tuple[asyncio.Transport, ResponseHandler]:
+        try:
+            async with ceil_timeout(
+                timeout.sock_connect, ceil_threshold=timeout.ceil_threshold
+            ):
+                sock = await aiohappyeyeballs.start_connection(
+                    addr_infos=addr_infos,
+                    local_addr_infos=self._local_addr_infos,
+                    happy_eyeballs_delay=self._happy_eyeballs_delay,
+                    interleave=self._interleave,
+                    loop=self._loop,
+                )
+                return await self._loop.create_connection(*args, **kwargs, sock=sock)
+        except cert_errors as exc:
+            raise ClientConnectorCertificateError(req.connection_key, exc) from exc
+        except ssl_errors as exc:
+            raise ClientConnectorSSLError(req.connection_key, exc) from exc
+        except OSError as exc:
+            if exc.errno is None and isinstance(exc, asyncio.TimeoutError):
+                raise
+            raise client_error(req.connection_key, exc) from exc
+
+    async def _wrap_existing_connection(
+        self,
+        *args: Any,
+        req: ClientRequest,
+        timeout: "ClientTimeout",
+        client_error: Type[Exception] = ClientConnectorError,
+        **kwargs: Any,
+    ) -> Tuple[asyncio.Transport, ResponseHandler]:
+        try:
+            async with ceil_timeout(
+                timeout.sock_connect, ceil_threshold=timeout.ceil_threshold
+            ):
+                return await self._loop.create_connection(*args, **kwargs)
+        except cert_errors as exc:
+            raise ClientConnectorCertificateError(req.connection_key, exc) from exc
+        except ssl_errors as exc:
+            raise ClientConnectorSSLError(req.connection_key, exc) from exc
+        except OSError as exc:
+            if exc.errno is None and isinstance(exc, asyncio.TimeoutError):
+                raise
+            raise client_error(req.connection_key, exc) from exc
+
+    def _fail_on_no_start_tls(self, req: "ClientRequest") -> None:
+        """Raise a :py:exc:`RuntimeError` on missing ``start_tls()``.
+
+        It is necessary for TLS-in-TLS so that it is possible to
+        send HTTPS queries through HTTPS proxies.
+
+        This doesn't affect regular HTTP requests, though.
+        """
+        if not req.is_ssl():
+            return
+
+        proxy_url = req.proxy
+        assert proxy_url is not None
+        if proxy_url.scheme != "https":
+            return
+
+        self._check_loop_for_start_tls()
+
+    def _check_loop_for_start_tls(self) -> None:
+        try:
+            self._loop.start_tls
+        except AttributeError as attr_exc:
+            raise RuntimeError(
+                "An HTTPS request is being sent through an HTTPS proxy. "
+                "This needs support for TLS in TLS but it is not implemented "
+                "in your runtime for the stdlib asyncio.\n\n"
+                "Please upgrade to Python 3.11 or higher. For more details, "
+                "please see:\n"
+                "* https://bugs.python.org/issue37179\n"
+                "* https://github.com/python/cpython/pull/28073\n"
+                "* https://docs.aiohttp.org/en/stable/"
+                "client_advanced.html#proxy-support\n"
+                "* https://github.com/aio-libs/aiohttp/discussions/6044\n",
+            ) from attr_exc
+
+    def _loop_supports_start_tls(self) -> bool:
+        try:
+            self._check_loop_for_start_tls()
+        except RuntimeError:
+            return False
+        else:
+            return True
+
+    def _warn_about_tls_in_tls(
+        self,
+        underlying_transport: asyncio.Transport,
+        req: ClientRequest,
+    ) -> None:
+        """Issue a warning if the requested URL has HTTPS scheme."""
+        if req.request_info.url.scheme != "https":
+            return
+
+        asyncio_supports_tls_in_tls = getattr(
+            underlying_transport,
+            "_start_tls_compatible",
+            False,
+        )
+
+        if asyncio_supports_tls_in_tls:
+            return
+
+        warnings.warn(
+            "An HTTPS request is being sent through an HTTPS proxy. "
+            "This support for TLS in TLS is known to be disabled "
+            "in the stdlib asyncio (Python <3.11). This is why you'll probably see "
+            "an error in the log below.\n\n"
+            "It is possible to enable it via monkeypatching. "
+            "For more details, see:\n"
+            "* https://bugs.python.org/issue37179\n"
+            "* https://github.com/python/cpython/pull/28073\n\n"
+            "You can temporarily patch this as follows:\n"
+            "* https://docs.aiohttp.org/en/stable/client_advanced.html#proxy-support\n"
+            "* https://github.com/aio-libs/aiohttp/discussions/6044\n",
+            RuntimeWarning,
+            source=self,
+            # Why `4`? At least 3 of the calls in the stack originate
+            # from the methods in this class.
+            stacklevel=3,
+        )
+
+    async def _start_tls_connection(
+        self,
+        underlying_transport: asyncio.Transport,
+        req: ClientRequest,
+        timeout: "ClientTimeout",
+        client_error: Type[Exception] = ClientConnectorError,
+    ) -> Tuple[asyncio.BaseTransport, ResponseHandler]:
+        """Wrap the raw TCP transport with TLS."""
+        tls_proto = self._factory()  # Create a brand new proto for TLS
+        sslcontext = self._get_ssl_context(req)
+        if TYPE_CHECKING:
+            # _start_tls_connection is unreachable in the current code path
+            # if sslcontext is None.
+            assert sslcontext is not None
+
+        try:
+            async with ceil_timeout(
+                timeout.sock_connect, ceil_threshold=timeout.ceil_threshold
+            ):
+                try:
+                    tls_transport = await self._loop.start_tls(
+                        underlying_transport,
+                        tls_proto,
+                        sslcontext,
+                        server_hostname=req.server_hostname or req.host,
+                        ssl_handshake_timeout=timeout.total,
+                    )
+                except BaseException:
+                    # We need to close the underlying transport since
+                    # `start_tls()` probably failed before it had a
+                    # chance to do this:
+                    underlying_transport.close()
+                    raise
+                if isinstance(tls_transport, asyncio.Transport):
+                    fingerprint = self._get_fingerprint(req)
+                    if fingerprint:
+                        try:
+                            fingerprint.check(tls_transport)
+                        except ServerFingerprintMismatch:
+                            tls_transport.close()
+                            if not self._cleanup_closed_disabled:
+                                self._cleanup_closed_transports.append(tls_transport)
+                            raise
+        except cert_errors as exc:
+            raise ClientConnectorCertificateError(req.connection_key, exc) from exc
+        except ssl_errors as exc:
+            raise ClientConnectorSSLError(req.connection_key, exc) from exc
+        except OSError as exc:
+            if exc.errno is None and isinstance(exc, asyncio.TimeoutError):
+                raise
+            raise client_error(req.connection_key, exc) from exc
+        except TypeError as type_err:
+            # Example cause looks like this:
+            # TypeError: transport <asyncio.sslproto._SSLProtocolTransport
+            # object at 0x7f760615e460> is not supported by start_tls()
+
+            raise ClientConnectionError(
+                "Cannot initialize a TLS-in-TLS connection to host "
+                f"{req.host!s}:{req.port:d} through an underlying connection "
+                f"to an HTTPS proxy {req.proxy!s} ssl:{req.ssl or 'default'} "
+                f"[{type_err!s}]"
+            ) from type_err
+        else:
+            if tls_transport is None:
+                msg = "Failed to start TLS (possibly caused by closing transport)"
+                raise client_error(req.connection_key, OSError(msg))
+            tls_proto.connection_made(
+                tls_transport
+            )  # Kick the state machine of the new TLS protocol
+
+        return tls_transport, tls_proto
+
+    def _convert_hosts_to_addr_infos(
+        self, hosts: List[ResolveResult]
+    ) -> List[aiohappyeyeballs.AddrInfoType]:
+        """Converts the list of hosts to a list of addr_infos.
+
+        The list of hosts is the result of a DNS lookup. The list of
+        addr_infos is the result of a call to `socket.getaddrinfo()`.
+        """
+        addr_infos: List[aiohappyeyeballs.AddrInfoType] = []
+        for hinfo in hosts:
+            host = hinfo["host"]
+            is_ipv6 = ":" in host
+            family = socket.AF_INET6 if is_ipv6 else socket.AF_INET
+            if self._family and self._family != family:
+                continue
+            addr = (host, hinfo["port"], 0, 0) if is_ipv6 else (host, hinfo["port"])
+            addr_infos.append(
+                (family, socket.SOCK_STREAM, socket.IPPROTO_TCP, "", addr)
+            )
+        return addr_infos
+
+    async def _create_direct_connection(
+        self,
+        req: ClientRequest,
+        traces: List["Trace"],
+        timeout: "ClientTimeout",
+        *,
+        client_error: Type[Exception] = ClientConnectorError,
+    ) -> Tuple[asyncio.Transport, ResponseHandler]:
+        sslcontext = self._get_ssl_context(req)
+        fingerprint = self._get_fingerprint(req)
+
+        host = req.url.raw_host
+        assert host is not None
+        # Replace multiple trailing dots with a single one.
+        # A trailing dot is only present for fully-qualified domain names.
+        # See https://github.com/aio-libs/aiohttp/pull/7364.
+        if host.endswith(".."):
+            host = host.rstrip(".") + "."
+        port = req.port
+        assert port is not None
+        try:
+            # Cancelling this lookup should not cancel the underlying lookup
+            #  or else the cancel event will get broadcast to all the waiters
+            #  across all connections.
+            hosts = await self._resolve_host(host, port, traces=traces)
+        except OSError as exc:
+            if exc.errno is None and isinstance(exc, asyncio.TimeoutError):
+                raise
+            # in case of proxy it is not ClientProxyConnectionError
+            # it is problem of resolving proxy ip itself
+            raise ClientConnectorDNSError(req.connection_key, exc) from exc
+
+        last_exc: Optional[Exception] = None
+        addr_infos = self._convert_hosts_to_addr_infos(hosts)
+        while addr_infos:
+            # Strip trailing dots, certificates contain FQDN without dots.
+            # See https://github.com/aio-libs/aiohttp/issues/3636
+            server_hostname = (
+                (req.server_hostname or host).rstrip(".") if sslcontext else None
+            )
+
+            try:
+                transp, proto = await self._wrap_create_connection(
+                    self._factory,
+                    timeout=timeout,
+                    ssl=sslcontext,
+                    addr_infos=addr_infos,
+                    server_hostname=server_hostname,
+                    req=req,
+                    client_error=client_error,
+                )
+            except (ClientConnectorError, asyncio.TimeoutError) as exc:
+                last_exc = exc
+                aiohappyeyeballs.pop_addr_infos_interleave(addr_infos, self._interleave)
+                continue
+
+            if req.is_ssl() and fingerprint:
+                try:
+                    fingerprint.check(transp)
+                except ServerFingerprintMismatch as exc:
+                    transp.close()
+                    if not self._cleanup_closed_disabled:
+                        self._cleanup_closed_transports.append(transp)
+                    last_exc = exc
+                    # Remove the bad peer from the list of addr_infos
+                    sock: socket.socket = transp.get_extra_info("socket")
+                    bad_peer = sock.getpeername()
+                    aiohappyeyeballs.remove_addr_infos(addr_infos, bad_peer)
+                    continue
+
+            return transp, proto
+        else:
+            assert last_exc is not None
+            raise last_exc
+
+    async def _create_proxy_connection(
+        self, req: ClientRequest, traces: List["Trace"], timeout: "ClientTimeout"
+    ) -> Tuple[asyncio.BaseTransport, ResponseHandler]:
+        self._fail_on_no_start_tls(req)
+        runtime_has_start_tls = self._loop_supports_start_tls()
+
+        headers: Dict[str, str] = {}
+        if req.proxy_headers is not None:
+            headers = req.proxy_headers  # type: ignore[assignment]
+        headers[hdrs.HOST] = req.headers[hdrs.HOST]
+
+        url = req.proxy
+        assert url is not None
+        proxy_req = ClientRequest(
+            hdrs.METH_GET,
+            url,
+            headers=headers,
+            auth=req.proxy_auth,
+            loop=self._loop,
+            ssl=req.ssl,
+        )
+
+        # create connection to proxy server
+        transport, proto = await self._create_direct_connection(
+            proxy_req, [], timeout, client_error=ClientProxyConnectionError
+        )
+
+        auth = proxy_req.headers.pop(hdrs.AUTHORIZATION, None)
+        if auth is not None:
+            if not req.is_ssl():
+                req.headers[hdrs.PROXY_AUTHORIZATION] = auth
+            else:
+                proxy_req.headers[hdrs.PROXY_AUTHORIZATION] = auth
+
+        if req.is_ssl():
+            if runtime_has_start_tls:
+                self._warn_about_tls_in_tls(transport, req)
+
+            # For HTTPS requests over HTTP proxy
+            # we must notify proxy to tunnel connection
+            # so we send CONNECT command:
+            #   CONNECT www.python.org:443 HTTP/1.1
+            #   Host: www.python.org
+            #
+            # next we must do TLS handshake and so on
+            # to do this we must wrap raw socket into secure one
+            # asyncio handles this perfectly
+            proxy_req.method = hdrs.METH_CONNECT
+            proxy_req.url = req.url
+            key = req.connection_key._replace(
+                proxy=None, proxy_auth=None, proxy_headers_hash=None
+            )
+            conn = Connection(self, key, proto, self._loop)
+            proxy_resp = await proxy_req.send(conn)
+            try:
+                protocol = conn._protocol
+                assert protocol is not None
+
+                # read_until_eof=True will ensure the connection isn't closed
+                # once the response is received and processed allowing
+                # START_TLS to work on the connection below.
+                protocol.set_response_params(
+                    read_until_eof=runtime_has_start_tls,
+                    timeout_ceil_threshold=self._timeout_ceil_threshold,
+                )
+                resp = await proxy_resp.start(conn)
+            except BaseException:
+                proxy_resp.close()
+                conn.close()
+                raise
+            else:
+                conn._protocol = None
+                try:
+                    if resp.status != 200:
+                        message = resp.reason
+                        if message is None:
+                            message = HTTPStatus(resp.status).phrase
+                        raise ClientHttpProxyError(
+                            proxy_resp.request_info,
+                            resp.history,
+                            status=resp.status,
+                            message=message,
+                            headers=resp.headers,
+                        )
+                    if not runtime_has_start_tls:
+                        rawsock = transport.get_extra_info("socket", default=None)
+                        if rawsock is None:
+                            raise RuntimeError(
+                                "Transport does not expose socket instance"
+                            )
+                        # Duplicate the socket, so now we can close proxy transport
+                        rawsock = rawsock.dup()
+                except BaseException:
+                    # It shouldn't be closed in `finally` because it's fed to
+                    # `loop.start_tls()` and the docs say not to touch it after
+                    # passing there.
+                    transport.close()
+                    raise
+                finally:
+                    if not runtime_has_start_tls:
+                        transport.close()
+
+                if not runtime_has_start_tls:
+                    # HTTP proxy with support for upgrade to HTTPS
+                    sslcontext = self._get_ssl_context(req)
+                    return await self._wrap_existing_connection(
+                        self._factory,
+                        timeout=timeout,
+                        ssl=sslcontext,
+                        sock=rawsock,
+                        server_hostname=req.host,
+                        req=req,
+                    )
+
+                return await self._start_tls_connection(
+                    # Access the old transport for the last time before it's
+                    # closed and forgotten forever:
+                    transport,
+                    req=req,
+                    timeout=timeout,
+                )
+            finally:
+                proxy_resp.close()
+
+        return transport, proto
+
+
+class UnixConnector(BaseConnector):
+    """Unix socket connector.
+
+    path - Unix socket path.
+    keepalive_timeout - (optional) Keep-alive timeout.
+    force_close - Set to True to force close and do reconnect
+        after each request (and between redirects).
+    limit - The total number of simultaneous connections.
+    limit_per_host - Number of simultaneous connections to one host.
+    loop - Optional event loop.
+    """
+
+    allowed_protocol_schema_set = HIGH_LEVEL_SCHEMA_SET | frozenset({"unix"})
+
+    def __init__(
+        self,
+        path: str,
+        force_close: bool = False,
+        keepalive_timeout: Union[object, float, None] = sentinel,
+        limit: int = 100,
+        limit_per_host: int = 0,
+        loop: Optional[asyncio.AbstractEventLoop] = None,
+    ) -> None:
+        super().__init__(
+            force_close=force_close,
+            keepalive_timeout=keepalive_timeout,
+            limit=limit,
+            limit_per_host=limit_per_host,
+            loop=loop,
+        )
+        self._path = path
+
+    @property
+    def path(self) -> str:
+        """Path to unix socket."""
+        return self._path
+
+    async def _create_connection(
+        self, req: ClientRequest, traces: List["Trace"], timeout: "ClientTimeout"
+    ) -> ResponseHandler:
+        try:
+            async with ceil_timeout(
+                timeout.sock_connect, ceil_threshold=timeout.ceil_threshold
+            ):
+                _, proto = await self._loop.create_unix_connection(
+                    self._factory, self._path
+                )
+        except OSError as exc:
+            if exc.errno is None and isinstance(exc, asyncio.TimeoutError):
+                raise
+            raise UnixClientConnectorError(self.path, req.connection_key, exc) from exc
+
+        return proto
+
+
+class NamedPipeConnector(BaseConnector):
+    """Named pipe connector.
+
+    Only supported by the proactor event loop.
+    See also: https://docs.python.org/3/library/asyncio-eventloop.html
+
+    path - Windows named pipe path.
+    keepalive_timeout - (optional) Keep-alive timeout.
+    force_close - Set to True to force close and do reconnect
+        after each request (and between redirects).
+    limit - The total number of simultaneous connections.
+    limit_per_host - Number of simultaneous connections to one host.
+    loop - Optional event loop.
+    """
+
+    allowed_protocol_schema_set = HIGH_LEVEL_SCHEMA_SET | frozenset({"npipe"})
+
+    def __init__(
+        self,
+        path: str,
+        force_close: bool = False,
+        keepalive_timeout: Union[object, float, None] = sentinel,
+        limit: int = 100,
+        limit_per_host: int = 0,
+        loop: Optional[asyncio.AbstractEventLoop] = None,
+    ) -> None:
+        super().__init__(
+            force_close=force_close,
+            keepalive_timeout=keepalive_timeout,
+            limit=limit,
+            limit_per_host=limit_per_host,
+            loop=loop,
+        )
+        if not isinstance(
+            self._loop, asyncio.ProactorEventLoop  # type: ignore[attr-defined]
+        ):
+            raise RuntimeError(
+                "Named Pipes only available in proactor loop under windows"
+            )
+        self._path = path
+
+    @property
+    def path(self) -> str:
+        """Path to the named pipe."""
+        return self._path
+
+    async def _create_connection(
+        self, req: ClientRequest, traces: List["Trace"], timeout: "ClientTimeout"
+    ) -> ResponseHandler:
+        try:
+            async with ceil_timeout(
+                timeout.sock_connect, ceil_threshold=timeout.ceil_threshold
+            ):
+                _, proto = await self._loop.create_pipe_connection(  # type: ignore[attr-defined]
+                    self._factory, self._path
+                )
+                # the drain is required so that the connection_made is called
+                # and transport is set otherwise it is not set before the
+                # `assert conn.transport is not None`
+                # in client.py's _request method
+                await asyncio.sleep(0)
+                # other option is to manually set transport like
+                # `proto.transport = trans`
+        except OSError as exc:
+            if exc.errno is None and isinstance(exc, asyncio.TimeoutError):
+                raise
+            raise ClientConnectorError(req.connection_key, exc) from exc
+
+        return cast(ResponseHandler, proto)

deepseek/lib/python3.10/site-packages/aiohttp/cookiejar.py

@@ -0,0 +1,487 @@
+import asyncio
+import calendar
+import contextlib
+import datetime
+import heapq
+import itertools
+import os  # noqa
+import pathlib
+import pickle
+import re
+import time
+import warnings
+from collections import defaultdict
+from http.cookies import BaseCookie, Morsel, SimpleCookie
+from typing import (
+    DefaultDict,
+    Dict,
+    Iterable,
+    Iterator,
+    List,
+    Mapping,
+    Optional,
+    Set,
+    Tuple,
+    Union,
+    cast,
+)
+
+from yarl import URL
+
+from .abc import AbstractCookieJar, ClearCookiePredicate
+from .helpers import is_ip_address
+from .typedefs import LooseCookies, PathLike, StrOrURL
+
+__all__ = ("CookieJar", "DummyCookieJar")
+
+
+CookieItem = Union[str, "Morsel[str]"]
+
+# We cache these string methods here as their use is in performance critical code.
+_FORMAT_PATH = "{}/{}".format
+_FORMAT_DOMAIN_REVERSED = "{1}.{0}".format
+
+# The minimum number of scheduled cookie expirations before we start cleaning up
+# the expiration heap. This is a performance optimization to avoid cleaning up the
+# heap too often when there are only a few scheduled expirations.
+_MIN_SCHEDULED_COOKIE_EXPIRATION = 100
+
+
+class CookieJar(AbstractCookieJar):
+    """Implements cookie storage adhering to RFC 6265."""
+
+    DATE_TOKENS_RE = re.compile(
+        r"[\x09\x20-\x2F\x3B-\x40\x5B-\x60\x7B-\x7E]*"
+        r"(?P<token>[\x00-\x08\x0A-\x1F\d:a-zA-Z\x7F-\xFF]+)"
+    )
+
+    DATE_HMS_TIME_RE = re.compile(r"(\d{1,2}):(\d{1,2}):(\d{1,2})")
+
+    DATE_DAY_OF_MONTH_RE = re.compile(r"(\d{1,2})")
+
+    DATE_MONTH_RE = re.compile(
+        "(jan)|(feb)|(mar)|(apr)|(may)|(jun)|(jul)|(aug)|(sep)|(oct)|(nov)|(dec)",
+        re.I,
+    )
+
+    DATE_YEAR_RE = re.compile(r"(\d{2,4})")
+
+    # calendar.timegm() fails for timestamps after datetime.datetime.max
+    # Minus one as a loss of precision occurs when timestamp() is called.
+    MAX_TIME = (
+        int(datetime.datetime.max.replace(tzinfo=datetime.timezone.utc).timestamp()) - 1
+    )
+    try:
+        calendar.timegm(time.gmtime(MAX_TIME))
+    except (OSError, ValueError):
+        # Hit the maximum representable time on Windows
+        # https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/localtime-localtime32-localtime64
+        # Throws ValueError on PyPy 3.9, OSError elsewhere
+        MAX_TIME = calendar.timegm((3000, 12, 31, 23, 59, 59, -1, -1, -1))
+    except OverflowError:
+        # #4515: datetime.max may not be representable on 32-bit platforms
+        MAX_TIME = 2**31 - 1
+    # Avoid minuses in the future, 3x faster
+    SUB_MAX_TIME = MAX_TIME - 1
+
+    def __init__(
+        self,
+        *,
+        unsafe: bool = False,
+        quote_cookie: bool = True,
+        treat_as_secure_origin: Union[StrOrURL, List[StrOrURL], None] = None,
+        loop: Optional[asyncio.AbstractEventLoop] = None,
+    ) -> None:
+        super().__init__(loop=loop)
+        self._cookies: DefaultDict[Tuple[str, str], SimpleCookie] = defaultdict(
+            SimpleCookie
+        )
+        self._morsel_cache: DefaultDict[Tuple[str, str], Dict[str, Morsel[str]]] = (
+            defaultdict(dict)
+        )
+        self._host_only_cookies: Set[Tuple[str, str]] = set()
+        self._unsafe = unsafe
+        self._quote_cookie = quote_cookie
+        if treat_as_secure_origin is None:
+            treat_as_secure_origin = []
+        elif isinstance(treat_as_secure_origin, URL):
+            treat_as_secure_origin = [treat_as_secure_origin.origin()]
+        elif isinstance(treat_as_secure_origin, str):
+            treat_as_secure_origin = [URL(treat_as_secure_origin).origin()]
+        else:
+            treat_as_secure_origin = [
+                URL(url).origin() if isinstance(url, str) else url.origin()
+                for url in treat_as_secure_origin
+            ]
+        self._treat_as_secure_origin = treat_as_secure_origin
+        self._expire_heap: List[Tuple[float, Tuple[str, str, str]]] = []
+        self._expirations: Dict[Tuple[str, str, str], float] = {}
+
+    def save(self, file_path: PathLike) -> None:
+        file_path = pathlib.Path(file_path)
+        with file_path.open(mode="wb") as f:
+            pickle.dump(self._cookies, f, pickle.HIGHEST_PROTOCOL)
+
+    def load(self, file_path: PathLike) -> None:
+        file_path = pathlib.Path(file_path)
+        with file_path.open(mode="rb") as f:
+            self._cookies = pickle.load(f)
+
+    def clear(self, predicate: Optional[ClearCookiePredicate] = None) -> None:
+        if predicate is None:
+            self._expire_heap.clear()
+            self._cookies.clear()
+            self._morsel_cache.clear()
+            self._host_only_cookies.clear()
+            self._expirations.clear()
+            return
+
+        now = time.time()
+        to_del = [
+            key
+            for (domain, path), cookie in self._cookies.items()
+            for name, morsel in cookie.items()
+            if (
+                (key := (domain, path, name)) in self._expirations
+                and self._expirations[key] <= now
+            )
+            or predicate(morsel)
+        ]
+        if to_del:
+            self._delete_cookies(to_del)
+
+    def clear_domain(self, domain: str) -> None:
+        self.clear(lambda x: self._is_domain_match(domain, x["domain"]))
+
+    def __iter__(self) -> "Iterator[Morsel[str]]":
+        self._do_expiration()
+        for val in self._cookies.values():
+            yield from val.values()
+
+    def __len__(self) -> int:
+        """Return number of cookies.
+
+        This function does not iterate self to avoid unnecessary expiration
+        checks.
+        """
+        return sum(len(cookie.values()) for cookie in self._cookies.values())
+
+    def _do_expiration(self) -> None:
+        """Remove expired cookies."""
+        if not (expire_heap_len := len(self._expire_heap)):
+            return
+
+        # If the expiration heap grows larger than the number expirations
+        # times two, we clean it up to avoid keeping expired entries in
+        # the heap and consuming memory. We guard this with a minimum
+        # threshold to avoid cleaning up the heap too often when there are
+        # only a few scheduled expirations.
+        if (
+            expire_heap_len > _MIN_SCHEDULED_COOKIE_EXPIRATION
+            and expire_heap_len > len(self._expirations) * 2
+        ):
+            # Remove any expired entries from the expiration heap
+            # that do not match the expiration time in the expirations
+            # as it means the cookie has been re-added to the heap
+            # with a different expiration time.
+            self._expire_heap = [
+                entry
+                for entry in self._expire_heap
+                if self._expirations.get(entry[1]) == entry[0]
+            ]
+            heapq.heapify(self._expire_heap)
+
+        now = time.time()
+        to_del: List[Tuple[str, str, str]] = []
+        # Find any expired cookies and add them to the to-delete list
+        while self._expire_heap:
+            when, cookie_key = self._expire_heap[0]
+            if when > now:
+                break
+            heapq.heappop(self._expire_heap)
+            # Check if the cookie hasn't been re-added to the heap
+            # with a different expiration time as it will be removed
+            # later when it reaches the top of the heap and its
+            # expiration time is met.
+            if self._expirations.get(cookie_key) == when:
+                to_del.append(cookie_key)
+
+        if to_del:
+            self._delete_cookies(to_del)
+
+    def _delete_cookies(self, to_del: List[Tuple[str, str, str]]) -> None:
+        for domain, path, name in to_del:
+            self._host_only_cookies.discard((domain, name))
+            self._cookies[(domain, path)].pop(name, None)
+            self._morsel_cache[(domain, path)].pop(name, None)
+            self._expirations.pop((domain, path, name), None)
+
+    def _expire_cookie(self, when: float, domain: str, path: str, name: str) -> None:
+        cookie_key = (domain, path, name)
+        if self._expirations.get(cookie_key) == when:
+            # Avoid adding duplicates to the heap
+            return
+        heapq.heappush(self._expire_heap, (when, cookie_key))
+        self._expirations[cookie_key] = when
+
+    def update_cookies(self, cookies: LooseCookies, response_url: URL = URL()) -> None:
+        """Update cookies."""
+        hostname = response_url.raw_host
+
+        if not self._unsafe and is_ip_address(hostname):
+            # Don't accept cookies from IPs
+            return
+
+        if isinstance(cookies, Mapping):
+            cookies = cookies.items()
+
+        for name, cookie in cookies:
+            if not isinstance(cookie, Morsel):
+                tmp = SimpleCookie()
+                tmp[name] = cookie  # type: ignore[assignment]
+                cookie = tmp[name]
+
+            domain = cookie["domain"]
+
+            # ignore domains with trailing dots
+            if domain and domain[-1] == ".":
+                domain = ""
+                del cookie["domain"]
+
+            if not domain and hostname is not None:
+                # Set the cookie's domain to the response hostname
+                # and set its host-only-flag
+                self._host_only_cookies.add((hostname, name))
+                domain = cookie["domain"] = hostname
+
+            if domain and domain[0] == ".":
+                # Remove leading dot
+                domain = domain[1:]
+                cookie["domain"] = domain
+
+            if hostname and not self._is_domain_match(domain, hostname):
+                # Setting cookies for different domains is not allowed
+                continue
+
+            path = cookie["path"]
+            if not path or path[0] != "/":
+                # Set the cookie's path to the response path
+                path = response_url.path
+                if not path.startswith("/"):
+                    path = "/"
+                else:
+                    # Cut everything from the last slash to the end
+                    path = "/" + path[1 : path.rfind("/")]
+                cookie["path"] = path
+            path = path.rstrip("/")
+
+            if max_age := cookie["max-age"]:
+                try:
+                    delta_seconds = int(max_age)
+                    max_age_expiration = min(time.time() + delta_seconds, self.MAX_TIME)
+                    self._expire_cookie(max_age_expiration, domain, path, name)
+                except ValueError:
+                    cookie["max-age"] = ""
+
+            elif expires := cookie["expires"]:
+                if expire_time := self._parse_date(expires):
+                    self._expire_cookie(expire_time, domain, path, name)
+                else:
+                    cookie["expires"] = ""
+
+            key = (domain, path)
+            if self._cookies[key].get(name) != cookie:
+                # Don't blow away the cache if the same
+                # cookie gets set again
+                self._cookies[key][name] = cookie
+                self._morsel_cache[key].pop(name, None)
+
+        self._do_expiration()
+
+    def filter_cookies(self, request_url: URL = URL()) -> "BaseCookie[str]":
+        """Returns this jar's cookies filtered by their attributes."""
+        filtered: Union[SimpleCookie, "BaseCookie[str]"] = (
+            SimpleCookie() if self._quote_cookie else BaseCookie()
+        )
+        if not self._cookies:
+            # Skip do_expiration() if there are no cookies.
+            return filtered
+        self._do_expiration()
+        if not self._cookies:
+            # Skip rest of function if no non-expired cookies.
+            return filtered
+        if type(request_url) is not URL:
+            warnings.warn(
+                "filter_cookies expects yarl.URL instances only,"
+                f"and will stop working in 4.x, got {type(request_url)}",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+            request_url = URL(request_url)
+        hostname = request_url.raw_host or ""
+
+        is_not_secure = request_url.scheme not in ("https", "wss")
+        if is_not_secure and self._treat_as_secure_origin:
+            request_origin = URL()
+            with contextlib.suppress(ValueError):
+                request_origin = request_url.origin()
+            is_not_secure = request_origin not in self._treat_as_secure_origin
+
+        # Send shared cookie
+        for c in self._cookies[("", "")].values():
+            filtered[c.key] = c.value
+
+        if is_ip_address(hostname):
+            if not self._unsafe:
+                return filtered
+            domains: Iterable[str] = (hostname,)
+        else:
+            # Get all the subdomains that might match a cookie (e.g. "foo.bar.com", "bar.com", "com")
+            domains = itertools.accumulate(
+                reversed(hostname.split(".")), _FORMAT_DOMAIN_REVERSED
+            )
+
+        # Get all the path prefixes that might match a cookie (e.g. "", "/foo", "/foo/bar")
+        paths = itertools.accumulate(request_url.path.split("/"), _FORMAT_PATH)
+        # Create every combination of (domain, path) pairs.
+        pairs = itertools.product(domains, paths)
+
+        path_len = len(request_url.path)
+        # Point 2: https://www.rfc-editor.org/rfc/rfc6265.html#section-5.4
+        for p in pairs:
+            for name, cookie in self._cookies[p].items():
+                domain = cookie["domain"]
+
+                if (domain, name) in self._host_only_cookies and domain != hostname:
+                    continue
+
+                # Skip edge case when the cookie has a trailing slash but request doesn't.
+                if len(cookie["path"]) > path_len:
+                    continue
+
+                if is_not_secure and cookie["secure"]:
+                    continue
+
+                # We already built the Morsel so reuse it here
+                if name in self._morsel_cache[p]:
+                    filtered[name] = self._morsel_cache[p][name]
+                    continue
+
+                # It's critical we use the Morsel so the coded_value
+                # (based on cookie version) is preserved
+                mrsl_val = cast("Morsel[str]", cookie.get(cookie.key, Morsel()))
+                mrsl_val.set(cookie.key, cookie.value, cookie.coded_value)
+                self._morsel_cache[p][name] = mrsl_val
+                filtered[name] = mrsl_val
+
+        return filtered
+
+    @staticmethod
+    def _is_domain_match(domain: str, hostname: str) -> bool:
+        """Implements domain matching adhering to RFC 6265."""
+        if hostname == domain:
+            return True
+
+        if not hostname.endswith(domain):
+            return False
+
+        non_matching = hostname[: -len(domain)]
+
+        if not non_matching.endswith("."):
+            return False
+
+        return not is_ip_address(hostname)
+
+    @classmethod
+    def _parse_date(cls, date_str: str) -> Optional[int]:
+        """Implements date string parsing adhering to RFC 6265."""
+        if not date_str:
+            return None
+
+        found_time = False
+        found_day = False
+        found_month = False
+        found_year = False
+
+        hour = minute = second = 0
+        day = 0
+        month = 0
+        year = 0
+
+        for token_match in cls.DATE_TOKENS_RE.finditer(date_str):
+
+            token = token_match.group("token")
+
+            if not found_time:
+                time_match = cls.DATE_HMS_TIME_RE.match(token)
+                if time_match:
+                    found_time = True
+                    hour, minute, second = (int(s) for s in time_match.groups())
+                    continue
+
+            if not found_day:
+                day_match = cls.DATE_DAY_OF_MONTH_RE.match(token)
+                if day_match:
+                    found_day = True
+                    day = int(day_match.group())
+                    continue
+
+            if not found_month:
+                month_match = cls.DATE_MONTH_RE.match(token)
+                if month_match:
+                    found_month = True
+                    assert month_match.lastindex is not None
+                    month = month_match.lastindex
+                    continue
+
+            if not found_year:
+                year_match = cls.DATE_YEAR_RE.match(token)
+                if year_match:
+                    found_year = True
+                    year = int(year_match.group())
+
+        if 70 <= year <= 99:
+            year += 1900
+        elif 0 <= year <= 69:
+            year += 2000
+
+        if False in (found_day, found_month, found_year, found_time):
+            return None
+
+        if not 1 <= day <= 31:
+            return None
+
+        if year < 1601 or hour > 23 or minute > 59 or second > 59:
+            return None
+
+        return calendar.timegm((year, month, day, hour, minute, second, -1, -1, -1))
+
+
+class DummyCookieJar(AbstractCookieJar):
+    """Implements a dummy cookie storage.
+
+    It can be used with the ClientSession when no cookie processing is needed.
+
+    """
+
+    def __init__(self, *, loop: Optional[asyncio.AbstractEventLoop] = None) -> None:
+        super().__init__(loop=loop)
+
+    def __iter__(self) -> "Iterator[Morsel[str]]":
+        while False:
+            yield None
+
+    def __len__(self) -> int:
+        return 0
+
+    def clear(self, predicate: Optional[ClearCookiePredicate] = None) -> None:
+        pass
+
+    def clear_domain(self, domain: str) -> None:
+        pass
+
+    def update_cookies(self, cookies: LooseCookies, response_url: URL = URL()) -> None:
+        pass
+
+    def filter_cookies(self, request_url: URL) -> "BaseCookie[str]":
+        return SimpleCookie()

deepseek/lib/python3.10/site-packages/aiohttp/formdata.py

@@ -0,0 +1,182 @@
+import io
+import warnings
+from typing import Any, Iterable, List, Optional
+from urllib.parse import urlencode
+
+from multidict import MultiDict, MultiDictProxy
+
+from . import hdrs, multipart, payload
+from .helpers import guess_filename
+from .payload import Payload
+
+__all__ = ("FormData",)
+
+
+class FormData:
+    """Helper class for form body generation.
+
+    Supports multipart/form-data and application/x-www-form-urlencoded.
+    """
+
+    def __init__(
+        self,
+        fields: Iterable[Any] = (),
+        quote_fields: bool = True,
+        charset: Optional[str] = None,
+        *,
+        default_to_multipart: bool = False,
+    ) -> None:
+        self._writer = multipart.MultipartWriter("form-data")
+        self._fields: List[Any] = []
+        self._is_multipart = default_to_multipart
+        self._is_processed = False
+        self._quote_fields = quote_fields
+        self._charset = charset
+
+        if isinstance(fields, dict):
+            fields = list(fields.items())
+        elif not isinstance(fields, (list, tuple)):
+            fields = (fields,)
+        self.add_fields(*fields)
+
+    @property
+    def is_multipart(self) -> bool:
+        return self._is_multipart
+
+    def add_field(
+        self,
+        name: str,
+        value: Any,
+        *,
+        content_type: Optional[str] = None,
+        filename: Optional[str] = None,
+        content_transfer_encoding: Optional[str] = None,
+    ) -> None:
+
+        if isinstance(value, io.IOBase):
+            self._is_multipart = True
+        elif isinstance(value, (bytes, bytearray, memoryview)):
+            msg = (
+                "In v4, passing bytes will no longer create a file field. "
+                "Please explicitly use the filename parameter or pass a BytesIO object."
+            )
+            if filename is None and content_transfer_encoding is None:
+                warnings.warn(msg, DeprecationWarning)
+                filename = name
+
+        type_options: MultiDict[str] = MultiDict({"name": name})
+        if filename is not None and not isinstance(filename, str):
+            raise TypeError("filename must be an instance of str. Got: %s" % filename)
+        if filename is None and isinstance(value, io.IOBase):
+            filename = guess_filename(value, name)
+        if filename is not None:
+            type_options["filename"] = filename
+            self._is_multipart = True
+
+        headers = {}
+        if content_type is not None:
+            if not isinstance(content_type, str):
+                raise TypeError(
+                    "content_type must be an instance of str. Got: %s" % content_type
+                )
+            headers[hdrs.CONTENT_TYPE] = content_type
+            self._is_multipart = True
+        if content_transfer_encoding is not None:
+            if not isinstance(content_transfer_encoding, str):
+                raise TypeError(
+                    "content_transfer_encoding must be an instance"
+                    " of str. Got: %s" % content_transfer_encoding
+                )
+            msg = (
+                "content_transfer_encoding is deprecated. "
+                "To maintain compatibility with v4 please pass a BytesPayload."
+            )
+            warnings.warn(msg, DeprecationWarning)
+            self._is_multipart = True
+
+        self._fields.append((type_options, headers, value))
+
+    def add_fields(self, *fields: Any) -> None:
+        to_add = list(fields)
+
+        while to_add:
+            rec = to_add.pop(0)
+
+            if isinstance(rec, io.IOBase):
+                k = guess_filename(rec, "unknown")
+                self.add_field(k, rec)  # type: ignore[arg-type]
+
+            elif isinstance(rec, (MultiDictProxy, MultiDict)):
+                to_add.extend(rec.items())
+
+            elif isinstance(rec, (list, tuple)) and len(rec) == 2:
+                k, fp = rec
+                self.add_field(k, fp)  # type: ignore[arg-type]
+
+            else:
+                raise TypeError(
+                    "Only io.IOBase, multidict and (name, file) "
+                    "pairs allowed, use .add_field() for passing "
+                    "more complex parameters, got {!r}".format(rec)
+                )
+
+    def _gen_form_urlencoded(self) -> payload.BytesPayload:
+        # form data (x-www-form-urlencoded)
+        data = []
+        for type_options, _, value in self._fields:
+            data.append((type_options["name"], value))
+
+        charset = self._charset if self._charset is not None else "utf-8"
+
+        if charset == "utf-8":
+            content_type = "application/x-www-form-urlencoded"
+        else:
+            content_type = "application/x-www-form-urlencoded; charset=%s" % charset
+
+        return payload.BytesPayload(
+            urlencode(data, doseq=True, encoding=charset).encode(),
+            content_type=content_type,
+        )
+
+    def _gen_form_data(self) -> multipart.MultipartWriter:
+        """Encode a list of fields using the multipart/form-data MIME format"""
+        if self._is_processed:
+            raise RuntimeError("Form data has been processed already")
+        for dispparams, headers, value in self._fields:
+            try:
+                if hdrs.CONTENT_TYPE in headers:
+                    part = payload.get_payload(
+                        value,
+                        content_type=headers[hdrs.CONTENT_TYPE],
+                        headers=headers,
+                        encoding=self._charset,
+                    )
+                else:
+                    part = payload.get_payload(
+                        value, headers=headers, encoding=self._charset
+                    )
+            except Exception as exc:
+                raise TypeError(
+                    "Can not serialize value type: %r\n "
+                    "headers: %r\n value: %r" % (type(value), headers, value)
+                ) from exc
+
+            if dispparams:
+                part.set_content_disposition(
+                    "form-data", quote_fields=self._quote_fields, **dispparams
+                )
+                # FIXME cgi.FieldStorage doesn't likes body parts with
+                # Content-Length which were sent via chunked transfer encoding
+                assert part.headers is not None
+                part.headers.popall(hdrs.CONTENT_LENGTH, None)
+
+            self._writer.append_payload(part)
+
+        self._is_processed = True
+        return self._writer
+
+    def __call__(self) -> Payload:
+        if self._is_multipart:
+            return self._gen_form_data()
+        else:
+            return self._gen_form_urlencoded()

deepseek/lib/python3.10/site-packages/aiohttp/helpers.py

@@ -0,0 +1,944 @@
+"""Various helper functions"""
+
+import asyncio
+import base64
+import binascii
+import contextlib
+import datetime
+import enum
+import functools
+import inspect
+import netrc
+import os
+import platform
+import re
+import sys
+import time
+import weakref
+from collections import namedtuple
+from contextlib import suppress
+from email.parser import HeaderParser
+from email.utils import parsedate
+from math import ceil
+from pathlib import Path
+from types import TracebackType
+from typing import (
+    Any,
+    Callable,
+    ContextManager,
+    Dict,
+    Generator,
+    Generic,
+    Iterable,
+    Iterator,
+    List,
+    Mapping,
+    Optional,
+    Protocol,
+    Tuple,
+    Type,
+    TypeVar,
+    Union,
+    get_args,
+    overload,
+)
+from urllib.parse import quote
+from urllib.request import getproxies, proxy_bypass
+
+import attr
+from multidict import MultiDict, MultiDictProxy, MultiMapping
+from propcache.api import under_cached_property as reify
+from yarl import URL
+
+from . import hdrs
+from .log import client_logger
+
+if sys.version_info >= (3, 11):
+    import asyncio as async_timeout
+else:
+    import async_timeout
+
+__all__ = ("BasicAuth", "ChainMapProxy", "ETag", "reify")
+
+IS_MACOS = platform.system() == "Darwin"
+IS_WINDOWS = platform.system() == "Windows"
+
+PY_310 = sys.version_info >= (3, 10)
+PY_311 = sys.version_info >= (3, 11)
+
+
+_T = TypeVar("_T")
+_S = TypeVar("_S")
+
+_SENTINEL = enum.Enum("_SENTINEL", "sentinel")
+sentinel = _SENTINEL.sentinel
+
+NO_EXTENSIONS = bool(os.environ.get("AIOHTTP_NO_EXTENSIONS"))
+
+# https://datatracker.ietf.org/doc/html/rfc9112#section-6.3-2.1
+EMPTY_BODY_STATUS_CODES = frozenset((204, 304, *range(100, 200)))
+# https://datatracker.ietf.org/doc/html/rfc9112#section-6.3-2.1
+# https://datatracker.ietf.org/doc/html/rfc9112#section-6.3-2.2
+EMPTY_BODY_METHODS = hdrs.METH_HEAD_ALL
+
+DEBUG = sys.flags.dev_mode or (
+    not sys.flags.ignore_environment and bool(os.environ.get("PYTHONASYNCIODEBUG"))
+)
+
+
+CHAR = {chr(i) for i in range(0, 128)}
+CTL = {chr(i) for i in range(0, 32)} | {
+    chr(127),
+}
+SEPARATORS = {
+    "(",
+    ")",
+    "<",
+    ">",
+    "@",
+    ",",
+    ";",
+    ":",
+    "\\",
+    '"',
+    "/",
+    "[",
+    "]",
+    "?",
+    "=",
+    "{",
+    "}",
+    " ",
+    chr(9),
+}
+TOKEN = CHAR ^ CTL ^ SEPARATORS
+
+
+class noop:
+    def __await__(self) -> Generator[None, None, None]:
+        yield
+
+
+class BasicAuth(namedtuple("BasicAuth", ["login", "password", "encoding"])):
+    """Http basic authentication helper."""
+
+    def __new__(
+        cls, login: str, password: str = "", encoding: str = "latin1"
+    ) -> "BasicAuth":
+        if login is None:
+            raise ValueError("None is not allowed as login value")
+
+        if password is None:
+            raise ValueError("None is not allowed as password value")
+
+        if ":" in login:
+            raise ValueError('A ":" is not allowed in login (RFC 1945#section-11.1)')
+
+        return super().__new__(cls, login, password, encoding)
+
+    @classmethod
+    def decode(cls, auth_header: str, encoding: str = "latin1") -> "BasicAuth":
+        """Create a BasicAuth object from an Authorization HTTP header."""
+        try:
+            auth_type, encoded_credentials = auth_header.split(" ", 1)
+        except ValueError:
+            raise ValueError("Could not parse authorization header.")
+
+        if auth_type.lower() != "basic":
+            raise ValueError("Unknown authorization method %s" % auth_type)
+
+        try:
+            decoded = base64.b64decode(
+                encoded_credentials.encode("ascii"), validate=True
+            ).decode(encoding)
+        except binascii.Error:
+            raise ValueError("Invalid base64 encoding.")
+
+        try:
+            # RFC 2617 HTTP Authentication
+            # https://www.ietf.org/rfc/rfc2617.txt
+            # the colon must be present, but the username and password may be
+            # otherwise blank.
+            username, password = decoded.split(":", 1)
+        except ValueError:
+            raise ValueError("Invalid credentials.")
+
+        return cls(username, password, encoding=encoding)
+
+    @classmethod
+    def from_url(cls, url: URL, *, encoding: str = "latin1") -> Optional["BasicAuth"]:
+        """Create BasicAuth from url."""
+        if not isinstance(url, URL):
+            raise TypeError("url should be yarl.URL instance")
+        # Check raw_user and raw_password first as yarl is likely
+        # to already have these values parsed from the netloc in the cache.
+        if url.raw_user is None and url.raw_password is None:
+            return None
+        return cls(url.user or "", url.password or "", encoding=encoding)
+
+    def encode(self) -> str:
+        """Encode credentials."""
+        creds = (f"{self.login}:{self.password}").encode(self.encoding)
+        return "Basic %s" % base64.b64encode(creds).decode(self.encoding)
+
+
+def strip_auth_from_url(url: URL) -> Tuple[URL, Optional[BasicAuth]]:
+    """Remove user and password from URL if present and return BasicAuth object."""
+    # Check raw_user and raw_password first as yarl is likely
+    # to already have these values parsed from the netloc in the cache.
+    if url.raw_user is None and url.raw_password is None:
+        return url, None
+    return url.with_user(None), BasicAuth(url.user or "", url.password or "")
+
+
+def netrc_from_env() -> Optional[netrc.netrc]:
+    """Load netrc from file.
+
+    Attempt to load it from the path specified by the env-var
+    NETRC or in the default location in the user's home directory.
+
+    Returns None if it couldn't be found or fails to parse.
+    """
+    netrc_env = os.environ.get("NETRC")
+
+    if netrc_env is not None:
+        netrc_path = Path(netrc_env)
+    else:
+        try:
+            home_dir = Path.home()
+        except RuntimeError as e:  # pragma: no cover
+            # if pathlib can't resolve home, it may raise a RuntimeError
+            client_logger.debug(
+                "Could not resolve home directory when "
+                "trying to look for .netrc file: %s",
+                e,
+            )
+            return None
+
+        netrc_path = home_dir / ("_netrc" if IS_WINDOWS else ".netrc")
+
+    try:
+        return netrc.netrc(str(netrc_path))
+    except netrc.NetrcParseError as e:
+        client_logger.warning("Could not parse .netrc file: %s", e)
+    except OSError as e:
+        netrc_exists = False
+        with contextlib.suppress(OSError):
+            netrc_exists = netrc_path.is_file()
+        # we couldn't read the file (doesn't exist, permissions, etc.)
+        if netrc_env or netrc_exists:
+            # only warn if the environment wanted us to load it,
+            # or it appears like the default file does actually exist
+            client_logger.warning("Could not read .netrc file: %s", e)
+
+    return None
+
+
+@attr.s(auto_attribs=True, frozen=True, slots=True)
+class ProxyInfo:
+    proxy: URL
+    proxy_auth: Optional[BasicAuth]
+
+
+def basicauth_from_netrc(netrc_obj: Optional[netrc.netrc], host: str) -> BasicAuth:
+    """
+    Return :py:class:`~aiohttp.BasicAuth` credentials for ``host`` from ``netrc_obj``.
+
+    :raises LookupError: if ``netrc_obj`` is :py:data:`None` or if no
+            entry is found for the ``host``.
+    """
+    if netrc_obj is None:
+        raise LookupError("No .netrc file found")
+    auth_from_netrc = netrc_obj.authenticators(host)
+
+    if auth_from_netrc is None:
+        raise LookupError(f"No entry for {host!s} found in the `.netrc` file.")
+    login, account, password = auth_from_netrc
+
+    # TODO(PY311): username = login or account
+    # Up to python 3.10, account could be None if not specified,
+    # and login will be empty string if not specified. From 3.11,
+    # login and account will be empty string if not specified.
+    username = login if (login or account is None) else account
+
+    # TODO(PY311): Remove this, as password will be empty string
+    # if not specified
+    if password is None:
+        password = ""
+
+    return BasicAuth(username, password)
+
+
+def proxies_from_env() -> Dict[str, ProxyInfo]:
+    proxy_urls = {
+        k: URL(v)
+        for k, v in getproxies().items()
+        if k in ("http", "https", "ws", "wss")
+    }
+    netrc_obj = netrc_from_env()
+    stripped = {k: strip_auth_from_url(v) for k, v in proxy_urls.items()}
+    ret = {}
+    for proto, val in stripped.items():
+        proxy, auth = val
+        if proxy.scheme in ("https", "wss"):
+            client_logger.warning(
+                "%s proxies %s are not supported, ignoring", proxy.scheme.upper(), proxy
+            )
+            continue
+        if netrc_obj and auth is None:
+            if proxy.host is not None:
+                try:
+                    auth = basicauth_from_netrc(netrc_obj, proxy.host)
+                except LookupError:
+                    auth = None
+        ret[proto] = ProxyInfo(proxy, auth)
+    return ret
+
+
+def get_env_proxy_for_url(url: URL) -> Tuple[URL, Optional[BasicAuth]]:
+    """Get a permitted proxy for the given URL from the env."""
+    if url.host is not None and proxy_bypass(url.host):
+        raise LookupError(f"Proxying is disallowed for `{url.host!r}`")
+
+    proxies_in_env = proxies_from_env()
+    try:
+        proxy_info = proxies_in_env[url.scheme]
+    except KeyError:
+        raise LookupError(f"No proxies found for `{url!s}` in the env")
+    else:
+        return proxy_info.proxy, proxy_info.proxy_auth
+
+
+@attr.s(auto_attribs=True, frozen=True, slots=True)
+class MimeType:
+    type: str
+    subtype: str
+    suffix: str
+    parameters: "MultiDictProxy[str]"
+
+
+@functools.lru_cache(maxsize=56)
+def parse_mimetype(mimetype: str) -> MimeType:
+    """Parses a MIME type into its components.
+
+    mimetype is a MIME type string.
+
+    Returns a MimeType object.
+
+    Example:
+
+    >>> parse_mimetype('text/html; charset=utf-8')
+    MimeType(type='text', subtype='html', suffix='',
+             parameters={'charset': 'utf-8'})
+
+    """
+    if not mimetype:
+        return MimeType(
+            type="", subtype="", suffix="", parameters=MultiDictProxy(MultiDict())
+        )
+
+    parts = mimetype.split(";")
+    params: MultiDict[str] = MultiDict()
+    for item in parts[1:]:
+        if not item:
+            continue
+        key, _, value = item.partition("=")
+        params.add(key.lower().strip(), value.strip(' "'))
+
+    fulltype = parts[0].strip().lower()
+    if fulltype == "*":
+        fulltype = "*/*"
+
+    mtype, _, stype = fulltype.partition("/")
+    stype, _, suffix = stype.partition("+")
+
+    return MimeType(
+        type=mtype, subtype=stype, suffix=suffix, parameters=MultiDictProxy(params)
+    )
+
+
+def guess_filename(obj: Any, default: Optional[str] = None) -> Optional[str]:
+    name = getattr(obj, "name", None)
+    if name and isinstance(name, str) and name[0] != "<" and name[-1] != ">":
+        return Path(name).name
+    return default
+
+
+not_qtext_re = re.compile(r"[^\041\043-\133\135-\176]")
+QCONTENT = {chr(i) for i in range(0x20, 0x7F)} | {"\t"}
+
+
+def quoted_string(content: str) -> str:
+    """Return 7-bit content as quoted-string.
+
+    Format content into a quoted-string as defined in RFC5322 for
+    Internet Message Format. Notice that this is not the 8-bit HTTP
+    format, but the 7-bit email format. Content must be in usascii or
+    a ValueError is raised.
+    """
+    if not (QCONTENT > set(content)):
+        raise ValueError(f"bad content for quoted-string {content!r}")
+    return not_qtext_re.sub(lambda x: "\\" + x.group(0), content)
+
+
+def content_disposition_header(
+    disptype: str, quote_fields: bool = True, _charset: str = "utf-8", **params: str
+) -> str:
+    """Sets ``Content-Disposition`` header for MIME.
+
+    This is the MIME payload Content-Disposition header from RFC 2183
+    and RFC 7579 section 4.2, not the HTTP Content-Disposition from
+    RFC 6266.
+
+    disptype is a disposition type: inline, attachment, form-data.
+    Should be valid extension token (see RFC 2183)
+
+    quote_fields performs value quoting to 7-bit MIME headers
+    according to RFC 7578. Set to quote_fields to False if recipient
+    can take 8-bit file names and field values.
+
+    _charset specifies the charset to use when quote_fields is True.
+
+    params is a dict with disposition params.
+    """
+    if not disptype or not (TOKEN > set(disptype)):
+        raise ValueError(f"bad content disposition type {disptype!r}")
+
+    value = disptype
+    if params:
+        lparams = []
+        for key, val in params.items():
+            if not key or not (TOKEN > set(key)):
+                raise ValueError(f"bad content disposition parameter {key!r}={val!r}")
+            if quote_fields:
+                if key.lower() == "filename":
+                    qval = quote(val, "", encoding=_charset)
+                    lparams.append((key, '"%s"' % qval))
+                else:
+                    try:
+                        qval = quoted_string(val)
+                    except ValueError:
+                        qval = "".join(
+                            (_charset, "''", quote(val, "", encoding=_charset))
+                        )
+                        lparams.append((key + "*", qval))
+                    else:
+                        lparams.append((key, '"%s"' % qval))
+            else:
+                qval = val.replace("\\", "\\\\").replace('"', '\\"')
+                lparams.append((key, '"%s"' % qval))
+        sparams = "; ".join("=".join(pair) for pair in lparams)
+        value = "; ".join((value, sparams))
+    return value
+
+
+def is_ip_address(host: Optional[str]) -> bool:
+    """Check if host looks like an IP Address.
+
+    This check is only meant as a heuristic to ensure that
+    a host is not a domain name.
+    """
+    if not host:
+        return False
+    # For a host to be an ipv4 address, it must be all numeric.
+    # The host must contain a colon to be an IPv6 address.
+    return ":" in host or host.replace(".", "").isdigit()
+
+
+_cached_current_datetime: Optional[int] = None
+_cached_formatted_datetime = ""
+
+
+def rfc822_formatted_time() -> str:
+    global _cached_current_datetime
+    global _cached_formatted_datetime
+
+    now = int(time.time())
+    if now != _cached_current_datetime:
+        # Weekday and month names for HTTP date/time formatting;
+        # always English!
+        # Tuples are constants stored in codeobject!
+        _weekdayname = ("Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun")
+        _monthname = (
+            "",  # Dummy so we can use 1-based month numbers
+            "Jan",
+            "Feb",
+            "Mar",
+            "Apr",
+            "May",
+            "Jun",
+            "Jul",
+            "Aug",
+            "Sep",
+            "Oct",
+            "Nov",
+            "Dec",
+        )
+
+        year, month, day, hh, mm, ss, wd, *tail = time.gmtime(now)
+        _cached_formatted_datetime = "%s, %02d %3s %4d %02d:%02d:%02d GMT" % (
+            _weekdayname[wd],
+            day,
+            _monthname[month],
+            year,
+            hh,
+            mm,
+            ss,
+        )
+        _cached_current_datetime = now
+    return _cached_formatted_datetime
+
+
+def _weakref_handle(info: "Tuple[weakref.ref[object], str]") -> None:
+    ref, name = info
+    ob = ref()
+    if ob is not None:
+        with suppress(Exception):
+            getattr(ob, name)()
+
+
+def weakref_handle(
+    ob: object,
+    name: str,
+    timeout: float,
+    loop: asyncio.AbstractEventLoop,
+    timeout_ceil_threshold: float = 5,
+) -> Optional[asyncio.TimerHandle]:
+    if timeout is not None and timeout > 0:
+        when = loop.time() + timeout
+        if timeout >= timeout_ceil_threshold:
+            when = ceil(when)
+
+        return loop.call_at(when, _weakref_handle, (weakref.ref(ob), name))
+    return None
+
+
+def call_later(
+    cb: Callable[[], Any],
+    timeout: float,
+    loop: asyncio.AbstractEventLoop,
+    timeout_ceil_threshold: float = 5,
+) -> Optional[asyncio.TimerHandle]:
+    if timeout is None or timeout <= 0:
+        return None
+    now = loop.time()
+    when = calculate_timeout_when(now, timeout, timeout_ceil_threshold)
+    return loop.call_at(when, cb)
+
+
+def calculate_timeout_when(
+    loop_time: float,
+    timeout: float,
+    timeout_ceiling_threshold: float,
+) -> float:
+    """Calculate when to execute a timeout."""
+    when = loop_time + timeout
+    if timeout > timeout_ceiling_threshold:
+        return ceil(when)
+    return when
+
+
+class TimeoutHandle:
+    """Timeout handle"""
+
+    __slots__ = ("_timeout", "_loop", "_ceil_threshold", "_callbacks")
+
+    def __init__(
+        self,
+        loop: asyncio.AbstractEventLoop,
+        timeout: Optional[float],
+        ceil_threshold: float = 5,
+    ) -> None:
+        self._timeout = timeout
+        self._loop = loop
+        self._ceil_threshold = ceil_threshold
+        self._callbacks: List[
+            Tuple[Callable[..., None], Tuple[Any, ...], Dict[str, Any]]
+        ] = []
+
+    def register(
+        self, callback: Callable[..., None], *args: Any, **kwargs: Any
+    ) -> None:
+        self._callbacks.append((callback, args, kwargs))
+
+    def close(self) -> None:
+        self._callbacks.clear()
+
+    def start(self) -> Optional[asyncio.TimerHandle]:
+        timeout = self._timeout
+        if timeout is not None and timeout > 0:
+            when = self._loop.time() + timeout
+            if timeout >= self._ceil_threshold:
+                when = ceil(when)
+            return self._loop.call_at(when, self.__call__)
+        else:
+            return None
+
+    def timer(self) -> "BaseTimerContext":
+        if self._timeout is not None and self._timeout > 0:
+            timer = TimerContext(self._loop)
+            self.register(timer.timeout)
+            return timer
+        else:
+            return TimerNoop()
+
+    def __call__(self) -> None:
+        for cb, args, kwargs in self._callbacks:
+            with suppress(Exception):
+                cb(*args, **kwargs)
+
+        self._callbacks.clear()
+
+
+class BaseTimerContext(ContextManager["BaseTimerContext"]):
+
+    __slots__ = ()
+
+    def assert_timeout(self) -> None:
+        """Raise TimeoutError if timeout has been exceeded."""
+
+
+class TimerNoop(BaseTimerContext):
+
+    __slots__ = ()
+
+    def __enter__(self) -> BaseTimerContext:
+        return self
+
+    def __exit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc_val: Optional[BaseException],
+        exc_tb: Optional[TracebackType],
+    ) -> None:
+        return
+
+
+class TimerContext(BaseTimerContext):
+    """Low resolution timeout context manager"""
+
+    __slots__ = ("_loop", "_tasks", "_cancelled", "_cancelling")
+
+    def __init__(self, loop: asyncio.AbstractEventLoop) -> None:
+        self._loop = loop
+        self._tasks: List[asyncio.Task[Any]] = []
+        self._cancelled = False
+        self._cancelling = 0
+
+    def assert_timeout(self) -> None:
+        """Raise TimeoutError if timer has already been cancelled."""
+        if self._cancelled:
+            raise asyncio.TimeoutError from None
+
+    def __enter__(self) -> BaseTimerContext:
+        task = asyncio.current_task(loop=self._loop)
+        if task is None:
+            raise RuntimeError("Timeout context manager should be used inside a task")
+
+        if sys.version_info >= (3, 11):
+            # Remember if the task was already cancelling
+            # so when we __exit__ we can decide if we should
+            # raise asyncio.TimeoutError or let the cancellation propagate
+            self._cancelling = task.cancelling()
+
+        if self._cancelled:
+            raise asyncio.TimeoutError from None
+
+        self._tasks.append(task)
+        return self
+
+    def __exit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc_val: Optional[BaseException],
+        exc_tb: Optional[TracebackType],
+    ) -> Optional[bool]:
+        enter_task: Optional[asyncio.Task[Any]] = None
+        if self._tasks:
+            enter_task = self._tasks.pop()
+
+        if exc_type is asyncio.CancelledError and self._cancelled:
+            assert enter_task is not None
+            # The timeout was hit, and the task was cancelled
+            # so we need to uncancel the last task that entered the context manager
+            # since the cancellation should not leak out of the context manager
+            if sys.version_info >= (3, 11):
+                # If the task was already cancelling don't raise
+                # asyncio.TimeoutError and instead return None
+                # to allow the cancellation to propagate
+                if enter_task.uncancel() > self._cancelling:
+                    return None
+            raise asyncio.TimeoutError from exc_val
+        return None
+
+    def timeout(self) -> None:
+        if not self._cancelled:
+            for task in set(self._tasks):
+                task.cancel()
+
+            self._cancelled = True
+
+
+def ceil_timeout(
+    delay: Optional[float], ceil_threshold: float = 5
+) -> async_timeout.Timeout:
+    if delay is None or delay <= 0:
+        return async_timeout.timeout(None)
+
+    loop = asyncio.get_running_loop()
+    now = loop.time()
+    when = now + delay
+    if delay > ceil_threshold:
+        when = ceil(when)
+    return async_timeout.timeout_at(when)
+
+
+class HeadersMixin:
+    """Mixin for handling headers."""
+
+    ATTRS = frozenset(["_content_type", "_content_dict", "_stored_content_type"])
+
+    _headers: MultiMapping[str]
+    _content_type: Optional[str] = None
+    _content_dict: Optional[Dict[str, str]] = None
+    _stored_content_type: Union[str, None, _SENTINEL] = sentinel
+
+    def _parse_content_type(self, raw: Optional[str]) -> None:
+        self._stored_content_type = raw
+        if raw is None:
+            # default value according to RFC 2616
+            self._content_type = "application/octet-stream"
+            self._content_dict = {}
+        else:
+            msg = HeaderParser().parsestr("Content-Type: " + raw)
+            self._content_type = msg.get_content_type()
+            params = msg.get_params(())
+            self._content_dict = dict(params[1:])  # First element is content type again
+
+    @property
+    def content_type(self) -> str:
+        """The value of content part for Content-Type HTTP header."""
+        raw = self._headers.get(hdrs.CONTENT_TYPE)
+        if self._stored_content_type != raw:
+            self._parse_content_type(raw)
+        assert self._content_type is not None
+        return self._content_type
+
+    @property
+    def charset(self) -> Optional[str]:
+        """The value of charset part for Content-Type HTTP header."""
+        raw = self._headers.get(hdrs.CONTENT_TYPE)
+        if self._stored_content_type != raw:
+            self._parse_content_type(raw)
+        assert self._content_dict is not None
+        return self._content_dict.get("charset")
+
+    @property
+    def content_length(self) -> Optional[int]:
+        """The value of Content-Length HTTP header."""
+        content_length = self._headers.get(hdrs.CONTENT_LENGTH)
+        return None if content_length is None else int(content_length)
+
+
+def set_result(fut: "asyncio.Future[_T]", result: _T) -> None:
+    if not fut.done():
+        fut.set_result(result)
+
+
+_EXC_SENTINEL = BaseException()
+
+
+class ErrorableProtocol(Protocol):
+    def set_exception(
+        self,
+        exc: BaseException,
+        exc_cause: BaseException = ...,
+    ) -> None: ...  # pragma: no cover
+
+
+def set_exception(
+    fut: "asyncio.Future[_T] | ErrorableProtocol",
+    exc: BaseException,
+    exc_cause: BaseException = _EXC_SENTINEL,
+) -> None:
+    """Set future exception.
+
+    If the future is marked as complete, this function is a no-op.
+
+    :param exc_cause: An exception that is a direct cause of ``exc``.
+                      Only set if provided.
+    """
+    if asyncio.isfuture(fut) and fut.done():
+        return
+
+    exc_is_sentinel = exc_cause is _EXC_SENTINEL
+    exc_causes_itself = exc is exc_cause
+    if not exc_is_sentinel and not exc_causes_itself:
+        exc.__cause__ = exc_cause
+
+    fut.set_exception(exc)
+
+
+@functools.total_ordering
+class AppKey(Generic[_T]):
+    """Keys for static typing support in Application."""
+
+    __slots__ = ("_name", "_t", "__orig_class__")
+
+    # This may be set by Python when instantiating with a generic type. We need to
+    # support this, in order to support types that are not concrete classes,
+    # like Iterable, which can't be passed as the second parameter to __init__.
+    __orig_class__: Type[object]
+
+    def __init__(self, name: str, t: Optional[Type[_T]] = None):
+        # Prefix with module name to help deduplicate key names.
+        frame = inspect.currentframe()
+        while frame:
+            if frame.f_code.co_name == "<module>":
+                module: str = frame.f_globals["__name__"]
+                break
+            frame = frame.f_back
+
+        self._name = module + "." + name
+        self._t = t
+
+    def __lt__(self, other: object) -> bool:
+        if isinstance(other, AppKey):
+            return self._name < other._name
+        return True  # Order AppKey above other types.
+
+    def __repr__(self) -> str:
+        t = self._t
+        if t is None:
+            with suppress(AttributeError):
+                # Set to type arg.
+                t = get_args(self.__orig_class__)[0]
+
+        if t is None:
+            t_repr = "<<Unknown>>"
+        elif isinstance(t, type):
+            if t.__module__ == "builtins":
+                t_repr = t.__qualname__
+            else:
+                t_repr = f"{t.__module__}.{t.__qualname__}"
+        else:
+            t_repr = repr(t)
+        return f"<AppKey({self._name}, type={t_repr})>"
+
+
+class ChainMapProxy(Mapping[Union[str, AppKey[Any]], Any]):
+    __slots__ = ("_maps",)
+
+    def __init__(self, maps: Iterable[Mapping[Union[str, AppKey[Any]], Any]]) -> None:
+        self._maps = tuple(maps)
+
+    def __init_subclass__(cls) -> None:
+        raise TypeError(
+            "Inheritance class {} from ChainMapProxy "
+            "is forbidden".format(cls.__name__)
+        )
+
+    @overload  # type: ignore[override]
+    def __getitem__(self, key: AppKey[_T]) -> _T: ...
+
+    @overload
+    def __getitem__(self, key: str) -> Any: ...
+
+    def __getitem__(self, key: Union[str, AppKey[_T]]) -> Any:
+        for mapping in self._maps:
+            try:
+                return mapping[key]
+            except KeyError:
+                pass
+        raise KeyError(key)
+
+    @overload  # type: ignore[override]
+    def get(self, key: AppKey[_T], default: _S) -> Union[_T, _S]: ...
+
+    @overload
+    def get(self, key: AppKey[_T], default: None = ...) -> Optional[_T]: ...
+
+    @overload
+    def get(self, key: str, default: Any = ...) -> Any: ...
+
+    def get(self, key: Union[str, AppKey[_T]], default: Any = None) -> Any:
+        try:
+            return self[key]
+        except KeyError:
+            return default
+
+    def __len__(self) -> int:
+        # reuses stored hash values if possible
+        return len(set().union(*self._maps))
+
+    def __iter__(self) -> Iterator[Union[str, AppKey[Any]]]:
+        d: Dict[Union[str, AppKey[Any]], Any] = {}
+        for mapping in reversed(self._maps):
+            # reuses stored hash values if possible
+            d.update(mapping)
+        return iter(d)
+
+    def __contains__(self, key: object) -> bool:
+        return any(key in m for m in self._maps)
+
+    def __bool__(self) -> bool:
+        return any(self._maps)
+
+    def __repr__(self) -> str:
+        content = ", ".join(map(repr, self._maps))
+        return f"ChainMapProxy({content})"
+
+
+# https://tools.ietf.org/html/rfc7232#section-2.3
+_ETAGC = r"[!\x23-\x7E\x80-\xff]+"
+_ETAGC_RE = re.compile(_ETAGC)
+_QUOTED_ETAG = rf'(W/)?"({_ETAGC})"'
+QUOTED_ETAG_RE = re.compile(_QUOTED_ETAG)
+LIST_QUOTED_ETAG_RE = re.compile(rf"({_QUOTED_ETAG})(?:\s*,\s*|$)|(.)")
+
+ETAG_ANY = "*"
+
+
+@attr.s(auto_attribs=True, frozen=True, slots=True)
+class ETag:
+    value: str
+    is_weak: bool = False
+
+
+def validate_etag_value(value: str) -> None:
+    if value != ETAG_ANY and not _ETAGC_RE.fullmatch(value):
+        raise ValueError(
+            f"Value {value!r} is not a valid etag. Maybe it contains '\"'?"
+        )
+
+
+def parse_http_date(date_str: Optional[str]) -> Optional[datetime.datetime]:
+    """Process a date string, return a datetime object"""
+    if date_str is not None:
+        timetuple = parsedate(date_str)
+        if timetuple is not None:
+            with suppress(ValueError):
+                return datetime.datetime(*timetuple[:6], tzinfo=datetime.timezone.utc)
+    return None
+
+
+@functools.lru_cache
+def must_be_empty_body(method: str, code: int) -> bool:
+    """Check if a request must return an empty body."""
+    return (
+        code in EMPTY_BODY_STATUS_CODES
+        or method in EMPTY_BODY_METHODS
+        or (200 <= code < 300 and method in hdrs.METH_CONNECT_ALL)
+    )
+
+
+def should_remove_content_length(method: str, code: int) -> bool:
+    """Check if a Content-Length header should be removed.
+
+    This should always be a subset of must_be_empty_body
+    """
+    # https://www.rfc-editor.org/rfc/rfc9110.html#section-8.6-8
+    # https://www.rfc-editor.org/rfc/rfc9110.html#section-15.4.5-4
+    return code in EMPTY_BODY_STATUS_CODES or (
+        200 <= code < 300 and method in hdrs.METH_CONNECT_ALL
+    )

deepseek/lib/python3.10/site-packages/aiohttp/http.py

@@ -0,0 +1,72 @@
+import sys
+from http import HTTPStatus
+from typing import Mapping, Tuple
+
+from . import __version__
+from .http_exceptions import HttpProcessingError as HttpProcessingError
+from .http_parser import (
+    HeadersParser as HeadersParser,
+    HttpParser as HttpParser,
+    HttpRequestParser as HttpRequestParser,
+    HttpResponseParser as HttpResponseParser,
+    RawRequestMessage as RawRequestMessage,
+    RawResponseMessage as RawResponseMessage,
+)
+from .http_websocket import (
+    WS_CLOSED_MESSAGE as WS_CLOSED_MESSAGE,
+    WS_CLOSING_MESSAGE as WS_CLOSING_MESSAGE,
+    WS_KEY as WS_KEY,
+    WebSocketError as WebSocketError,
+    WebSocketReader as WebSocketReader,
+    WebSocketWriter as WebSocketWriter,
+    WSCloseCode as WSCloseCode,
+    WSMessage as WSMessage,
+    WSMsgType as WSMsgType,
+    ws_ext_gen as ws_ext_gen,
+    ws_ext_parse as ws_ext_parse,
+)
+from .http_writer import (
+    HttpVersion as HttpVersion,
+    HttpVersion10 as HttpVersion10,
+    HttpVersion11 as HttpVersion11,
+    StreamWriter as StreamWriter,
+)
+
+__all__ = (
+    "HttpProcessingError",
+    "RESPONSES",
+    "SERVER_SOFTWARE",
+    # .http_writer
+    "StreamWriter",
+    "HttpVersion",
+    "HttpVersion10",
+    "HttpVersion11",
+    # .http_parser
+    "HeadersParser",
+    "HttpParser",
+    "HttpRequestParser",
+    "HttpResponseParser",
+    "RawRequestMessage",
+    "RawResponseMessage",
+    # .http_websocket
+    "WS_CLOSED_MESSAGE",
+    "WS_CLOSING_MESSAGE",
+    "WS_KEY",
+    "WebSocketReader",
+    "WebSocketWriter",
+    "ws_ext_gen",
+    "ws_ext_parse",
+    "WSMessage",
+    "WebSocketError",
+    "WSMsgType",
+    "WSCloseCode",
+)
+
+
+SERVER_SOFTWARE: str = "Python/{0[0]}.{0[1]} aiohttp/{1}".format(
+    sys.version_info, __version__
+)
+
+RESPONSES: Mapping[int, Tuple[str, str]] = {
+    v: (v.phrase, v.description) for v in HTTPStatus.__members__.values()
+}

deepseek/lib/python3.10/site-packages/aiohttp/http_exceptions.py

@@ -0,0 +1,112 @@
+"""Low-level http related exceptions."""
+
+from textwrap import indent
+from typing import Optional, Union
+
+from .typedefs import _CIMultiDict
+
+__all__ = ("HttpProcessingError",)
+
+
+class HttpProcessingError(Exception):
+    """HTTP error.
+
+    Shortcut for raising HTTP errors with custom code, message and headers.
+
+    code: HTTP Error code.
+    message: (optional) Error message.
+    headers: (optional) Headers to be sent in response, a list of pairs
+    """
+
+    code = 0
+    message = ""
+    headers = None
+
+    def __init__(
+        self,
+        *,
+        code: Optional[int] = None,
+        message: str = "",
+        headers: Optional[_CIMultiDict] = None,
+    ) -> None:
+        if code is not None:
+            self.code = code
+        self.headers = headers
+        self.message = message
+
+    def __str__(self) -> str:
+        msg = indent(self.message, "  ")
+        return f"{self.code}, message:\n{msg}"
+
+    def __repr__(self) -> str:
+        return f"<{self.__class__.__name__}: {self.code}, message={self.message!r}>"
+
+
+class BadHttpMessage(HttpProcessingError):
+
+    code = 400
+    message = "Bad Request"
+
+    def __init__(self, message: str, *, headers: Optional[_CIMultiDict] = None) -> None:
+        super().__init__(message=message, headers=headers)
+        self.args = (message,)
+
+
+class HttpBadRequest(BadHttpMessage):
+
+    code = 400
+    message = "Bad Request"
+
+
+class PayloadEncodingError(BadHttpMessage):
+    """Base class for payload errors"""
+
+
+class ContentEncodingError(PayloadEncodingError):
+    """Content encoding error."""
+
+
+class TransferEncodingError(PayloadEncodingError):
+    """transfer encoding error."""
+
+
+class ContentLengthError(PayloadEncodingError):
+    """Not enough data for satisfy content length header."""
+
+
+class LineTooLong(BadHttpMessage):
+    def __init__(
+        self, line: str, limit: str = "Unknown", actual_size: str = "Unknown"
+    ) -> None:
+        super().__init__(
+            f"Got more than {limit} bytes ({actual_size}) when reading {line}."
+        )
+        self.args = (line, limit, actual_size)
+
+
+class InvalidHeader(BadHttpMessage):
+    def __init__(self, hdr: Union[bytes, str]) -> None:
+        hdr_s = hdr.decode(errors="backslashreplace") if isinstance(hdr, bytes) else hdr
+        super().__init__(f"Invalid HTTP header: {hdr!r}")
+        self.hdr = hdr_s
+        self.args = (hdr,)
+
+
+class BadStatusLine(BadHttpMessage):
+    def __init__(self, line: str = "", error: Optional[str] = None) -> None:
+        if not isinstance(line, str):
+            line = repr(line)
+        super().__init__(error or f"Bad status line {line!r}")
+        self.args = (line,)
+        self.line = line
+
+
+class BadHttpMethod(BadStatusLine):
+    """Invalid HTTP method in status line."""
+
+    def __init__(self, line: str = "", error: Optional[str] = None) -> None:
+        super().__init__(line, error or f"Bad HTTP method in status line {line!r}")
+
+
+class InvalidURLError(BadHttpMessage):
+    pass

deepseek/lib/python3.10/site-packages/aiohttp/http_parser.py

@@ -0,0 +1,1046 @@
+import abc
+import asyncio
+import re
+import string
+from contextlib import suppress
+from enum import IntEnum
+from typing import (
+    Any,
+    ClassVar,
+    Final,
+    Generic,
+    List,
+    Literal,
+    NamedTuple,
+    Optional,
+    Pattern,
+    Set,
+    Tuple,
+    Type,
+    TypeVar,
+    Union,
+)
+
+from multidict import CIMultiDict, CIMultiDictProxy, istr
+from yarl import URL
+
+from . import hdrs
+from .base_protocol import BaseProtocol
+from .compression_utils import HAS_BROTLI, BrotliDecompressor, ZLibDecompressor
+from .helpers import (
+    _EXC_SENTINEL,
+    DEBUG,
+    EMPTY_BODY_METHODS,
+    EMPTY_BODY_STATUS_CODES,
+    NO_EXTENSIONS,
+    BaseTimerContext,
+    set_exception,
+)
+from .http_exceptions import (
+    BadHttpMessage,
+    BadHttpMethod,
+    BadStatusLine,
+    ContentEncodingError,
+    ContentLengthError,
+    InvalidHeader,
+    InvalidURLError,
+    LineTooLong,
+    TransferEncodingError,
+)
+from .http_writer import HttpVersion, HttpVersion10
+from .streams import EMPTY_PAYLOAD, StreamReader
+from .typedefs import RawHeaders
+
+__all__ = (
+    "HeadersParser",
+    "HttpParser",
+    "HttpRequestParser",
+    "HttpResponseParser",
+    "RawRequestMessage",
+    "RawResponseMessage",
+)
+
+_SEP = Literal[b"\r\n", b"\n"]
+
+ASCIISET: Final[Set[str]] = set(string.printable)
+
+# See https://www.rfc-editor.org/rfc/rfc9110.html#name-overview
+# and https://www.rfc-editor.org/rfc/rfc9110.html#name-tokens
+#
+#     method = token
+#     tchar = "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" / "." /
+#             "^" / "_" / "`" / "|" / "~" / DIGIT / ALPHA
+#     token = 1*tchar
+_TCHAR_SPECIALS: Final[str] = re.escape("!#$%&'*+-.^_`|~")
+TOKENRE: Final[Pattern[str]] = re.compile(f"[0-9A-Za-z{_TCHAR_SPECIALS}]+")
+VERSRE: Final[Pattern[str]] = re.compile(r"HTTP/(\d)\.(\d)", re.ASCII)
+DIGITS: Final[Pattern[str]] = re.compile(r"\d+", re.ASCII)
+HEXDIGITS: Final[Pattern[bytes]] = re.compile(rb"[0-9a-fA-F]+")
+
+
+class RawRequestMessage(NamedTuple):
+    method: str
+    path: str
+    version: HttpVersion
+    headers: "CIMultiDictProxy[str]"
+    raw_headers: RawHeaders
+    should_close: bool
+    compression: Optional[str]
+    upgrade: bool
+    chunked: bool
+    url: URL
+
+
+class RawResponseMessage(NamedTuple):
+    version: HttpVersion
+    code: int
+    reason: str
+    headers: CIMultiDictProxy[str]
+    raw_headers: RawHeaders
+    should_close: bool
+    compression: Optional[str]
+    upgrade: bool
+    chunked: bool
+
+
+_MsgT = TypeVar("_MsgT", RawRequestMessage, RawResponseMessage)
+
+
+class ParseState(IntEnum):
+
+    PARSE_NONE = 0
+    PARSE_LENGTH = 1
+    PARSE_CHUNKED = 2
+    PARSE_UNTIL_EOF = 3
+
+
+class ChunkState(IntEnum):
+    PARSE_CHUNKED_SIZE = 0
+    PARSE_CHUNKED_CHUNK = 1
+    PARSE_CHUNKED_CHUNK_EOF = 2
+    PARSE_MAYBE_TRAILERS = 3
+    PARSE_TRAILERS = 4
+
+
+class HeadersParser:
+    def __init__(
+        self,
+        max_line_size: int = 8190,
+        max_headers: int = 32768,
+        max_field_size: int = 8190,
+        lax: bool = False,
+    ) -> None:
+        self.max_line_size = max_line_size
+        self.max_headers = max_headers
+        self.max_field_size = max_field_size
+        self._lax = lax
+
+    def parse_headers(
+        self, lines: List[bytes]
+    ) -> Tuple["CIMultiDictProxy[str]", RawHeaders]:
+        headers: CIMultiDict[str] = CIMultiDict()
+        # note: "raw" does not mean inclusion of OWS before/after the field value
+        raw_headers = []
+
+        lines_idx = 1
+        line = lines[1]
+        line_count = len(lines)
+
+        while line:
+            # Parse initial header name : value pair.
+            try:
+                bname, bvalue = line.split(b":", 1)
+            except ValueError:
+                raise InvalidHeader(line) from None
+
+            if len(bname) == 0:
+                raise InvalidHeader(bname)
+
+            # https://www.rfc-editor.org/rfc/rfc9112.html#section-5.1-2
+            if {bname[0], bname[-1]} & {32, 9}:  # {" ", "\t"}
+                raise InvalidHeader(line)
+
+            bvalue = bvalue.lstrip(b" \t")
+            if len(bname) > self.max_field_size:
+                raise LineTooLong(
+                    "request header name {}".format(
+                        bname.decode("utf8", "backslashreplace")
+                    ),
+                    str(self.max_field_size),
+                    str(len(bname)),
+                )
+            name = bname.decode("utf-8", "surrogateescape")
+            if not TOKENRE.fullmatch(name):
+                raise InvalidHeader(bname)
+
+            header_length = len(bvalue)
+
+            # next line
+            lines_idx += 1
+            line = lines[lines_idx]
+
+            # consume continuation lines
+            continuation = self._lax and line and line[0] in (32, 9)  # (' ', '\t')
+
+            # Deprecated: https://www.rfc-editor.org/rfc/rfc9112.html#name-obsolete-line-folding
+            if continuation:
+                bvalue_lst = [bvalue]
+                while continuation:
+                    header_length += len(line)
+                    if header_length > self.max_field_size:
+                        raise LineTooLong(
+                            "request header field {}".format(
+                                bname.decode("utf8", "backslashreplace")
+                            ),
+                            str(self.max_field_size),
+                            str(header_length),
+                        )
+                    bvalue_lst.append(line)
+
+                    # next line
+                    lines_idx += 1
+                    if lines_idx < line_count:
+                        line = lines[lines_idx]
+                        if line:
+                            continuation = line[0] in (32, 9)  # (' ', '\t')
+                    else:
+                        line = b""
+                        break
+                bvalue = b"".join(bvalue_lst)
+            else:
+                if header_length > self.max_field_size:
+                    raise LineTooLong(
+                        "request header field {}".format(
+                            bname.decode("utf8", "backslashreplace")
+                        ),
+                        str(self.max_field_size),
+                        str(header_length),
+                    )
+
+            bvalue = bvalue.strip(b" \t")
+            value = bvalue.decode("utf-8", "surrogateescape")
+
+            # https://www.rfc-editor.org/rfc/rfc9110.html#section-5.5-5
+            if "\n" in value or "\r" in value or "\x00" in value:
+                raise InvalidHeader(bvalue)
+
+            headers.add(name, value)
+            raw_headers.append((bname, bvalue))
+
+        return (CIMultiDictProxy(headers), tuple(raw_headers))
+
+
+def _is_supported_upgrade(headers: CIMultiDictProxy[str]) -> bool:
+    """Check if the upgrade header is supported."""
+    return headers.get(hdrs.UPGRADE, "").lower() in {"tcp", "websocket"}
+
+
+class HttpParser(abc.ABC, Generic[_MsgT]):
+    lax: ClassVar[bool] = False
+
+    def __init__(
+        self,
+        protocol: Optional[BaseProtocol] = None,
+        loop: Optional[asyncio.AbstractEventLoop] = None,
+        limit: int = 2**16,
+        max_line_size: int = 8190,
+        max_headers: int = 32768,
+        max_field_size: int = 8190,
+        timer: Optional[BaseTimerContext] = None,
+        code: Optional[int] = None,
+        method: Optional[str] = None,
+        payload_exception: Optional[Type[BaseException]] = None,
+        response_with_body: bool = True,
+        read_until_eof: bool = False,
+        auto_decompress: bool = True,
+    ) -> None:
+        self.protocol = protocol
+        self.loop = loop
+        self.max_line_size = max_line_size
+        self.max_headers = max_headers
+        self.max_field_size = max_field_size
+        self.timer = timer
+        self.code = code
+        self.method = method
+        self.payload_exception = payload_exception
+        self.response_with_body = response_with_body
+        self.read_until_eof = read_until_eof
+
+        self._lines: List[bytes] = []
+        self._tail = b""
+        self._upgraded = False
+        self._payload = None
+        self._payload_parser: Optional[HttpPayloadParser] = None
+        self._auto_decompress = auto_decompress
+        self._limit = limit
+        self._headers_parser = HeadersParser(
+            max_line_size, max_headers, max_field_size, self.lax
+        )
+
+    @abc.abstractmethod
+    def parse_message(self, lines: List[bytes]) -> _MsgT: ...
+
+    @abc.abstractmethod
+    def _is_chunked_te(self, te: str) -> bool: ...
+
+    def feed_eof(self) -> Optional[_MsgT]:
+        if self._payload_parser is not None:
+            self._payload_parser.feed_eof()
+            self._payload_parser = None
+        else:
+            # try to extract partial message
+            if self._tail:
+                self._lines.append(self._tail)
+
+            if self._lines:
+                if self._lines[-1] != "\r\n":
+                    self._lines.append(b"")
+                with suppress(Exception):
+                    return self.parse_message(self._lines)
+        return None
+
+    def feed_data(
+        self,
+        data: bytes,
+        SEP: _SEP = b"\r\n",
+        EMPTY: bytes = b"",
+        CONTENT_LENGTH: istr = hdrs.CONTENT_LENGTH,
+        METH_CONNECT: str = hdrs.METH_CONNECT,
+        SEC_WEBSOCKET_KEY1: istr = hdrs.SEC_WEBSOCKET_KEY1,
+    ) -> Tuple[List[Tuple[_MsgT, StreamReader]], bool, bytes]:
+
+        messages = []
+
+        if self._tail:
+            data, self._tail = self._tail + data, b""
+
+        data_len = len(data)
+        start_pos = 0
+        loop = self.loop
+
+        should_close = False
+        while start_pos < data_len:
+
+            # read HTTP message (request/response line + headers), \r\n\r\n
+            # and split by lines
+            if self._payload_parser is None and not self._upgraded:
+                pos = data.find(SEP, start_pos)
+                # consume \r\n
+                if pos == start_pos and not self._lines:
+                    start_pos = pos + len(SEP)
+                    continue
+
+                if pos >= start_pos:
+                    if should_close:
+                        raise BadHttpMessage("Data after `Connection: close`")
+
+                    # line found
+                    line = data[start_pos:pos]
+                    if SEP == b"\n":  # For lax response parsing
+                        line = line.rstrip(b"\r")
+                    self._lines.append(line)
+                    start_pos = pos + len(SEP)
+
+                    # \r\n\r\n found
+                    if self._lines[-1] == EMPTY:
+                        try:
+                            msg: _MsgT = self.parse_message(self._lines)
+                        finally:
+                            self._lines.clear()
+
+                        def get_content_length() -> Optional[int]:
+                            # payload length
+                            length_hdr = msg.headers.get(CONTENT_LENGTH)
+                            if length_hdr is None:
+                                return None
+
+                            # Shouldn't allow +/- or other number formats.
+                            # https://www.rfc-editor.org/rfc/rfc9110#section-8.6-2
+                            # msg.headers is already stripped of leading/trailing wsp
+                            if not DIGITS.fullmatch(length_hdr):
+                                raise InvalidHeader(CONTENT_LENGTH)
+
+                            return int(length_hdr)
+
+                        length = get_content_length()
+                        # do not support old websocket spec
+                        if SEC_WEBSOCKET_KEY1 in msg.headers:
+                            raise InvalidHeader(SEC_WEBSOCKET_KEY1)
+
+                        self._upgraded = msg.upgrade and _is_supported_upgrade(
+                            msg.headers
+                        )
+
+                        method = getattr(msg, "method", self.method)
+                        # code is only present on responses
+                        code = getattr(msg, "code", 0)
+
+                        assert self.protocol is not None
+                        # calculate payload
+                        empty_body = code in EMPTY_BODY_STATUS_CODES or bool(
+                            method and method in EMPTY_BODY_METHODS
+                        )
+                        if not empty_body and (
+                            ((length is not None and length > 0) or msg.chunked)
+                            and not self._upgraded
+                        ):
+                            payload = StreamReader(
+                                self.protocol,
+                                timer=self.timer,
+                                loop=loop,
+                                limit=self._limit,
+                            )
+                            payload_parser = HttpPayloadParser(
+                                payload,
+                                length=length,
+                                chunked=msg.chunked,
+                                method=method,
+                                compression=msg.compression,
+                                code=self.code,
+                                response_with_body=self.response_with_body,
+                                auto_decompress=self._auto_decompress,
+                                lax=self.lax,
+                            )
+                            if not payload_parser.done:
+                                self._payload_parser = payload_parser
+                        elif method == METH_CONNECT:
+                            assert isinstance(msg, RawRequestMessage)
+                            payload = StreamReader(
+                                self.protocol,
+                                timer=self.timer,
+                                loop=loop,
+                                limit=self._limit,
+                            )
+                            self._upgraded = True
+                            self._payload_parser = HttpPayloadParser(
+                                payload,
+                                method=msg.method,
+                                compression=msg.compression,
+                                auto_decompress=self._auto_decompress,
+                                lax=self.lax,
+                            )
+                        elif not empty_body and length is None and self.read_until_eof:
+                            payload = StreamReader(
+                                self.protocol,
+                                timer=self.timer,
+                                loop=loop,
+                                limit=self._limit,
+                            )
+                            payload_parser = HttpPayloadParser(
+                                payload,
+                                length=length,
+                                chunked=msg.chunked,
+                                method=method,
+                                compression=msg.compression,
+                                code=self.code,
+                                response_with_body=self.response_with_body,
+                                auto_decompress=self._auto_decompress,
+                                lax=self.lax,
+                            )
+                            if not payload_parser.done:
+                                self._payload_parser = payload_parser
+                        else:
+                            payload = EMPTY_PAYLOAD
+
+                        messages.append((msg, payload))
+                        should_close = msg.should_close
+                else:
+                    self._tail = data[start_pos:]
+                    data = EMPTY
+                    break
+
+            # no parser, just store
+            elif self._payload_parser is None and self._upgraded:
+                assert not self._lines
+                break
+
+            # feed payload
+            elif data and start_pos < data_len:
+                assert not self._lines
+                assert self._payload_parser is not None
+                try:
+                    eof, data = self._payload_parser.feed_data(data[start_pos:], SEP)
+                except BaseException as underlying_exc:
+                    reraised_exc = underlying_exc
+                    if self.payload_exception is not None:
+                        reraised_exc = self.payload_exception(str(underlying_exc))
+
+                    set_exception(
+                        self._payload_parser.payload,
+                        reraised_exc,
+                        underlying_exc,
+                    )
+
+                    eof = True
+                    data = b""
+
+                if eof:
+                    start_pos = 0
+                    data_len = len(data)
+                    self._payload_parser = None
+                    continue
+            else:
+                break
+
+        if data and start_pos < data_len:
+            data = data[start_pos:]
+        else:
+            data = EMPTY
+
+        return messages, self._upgraded, data
+
+    def parse_headers(
+        self, lines: List[bytes]
+    ) -> Tuple[
+        "CIMultiDictProxy[str]", RawHeaders, Optional[bool], Optional[str], bool, bool
+    ]:
+        """Parses RFC 5322 headers from a stream.
+
+        Line continuations are supported. Returns list of header name
+        and value pairs. Header name is in upper case.
+        """
+        headers, raw_headers = self._headers_parser.parse_headers(lines)
+        close_conn = None
+        encoding = None
+        upgrade = False
+        chunked = False
+
+        # https://www.rfc-editor.org/rfc/rfc9110.html#section-5.5-6
+        # https://www.rfc-editor.org/rfc/rfc9110.html#name-collected-abnf
+        singletons = (
+            hdrs.CONTENT_LENGTH,
+            hdrs.CONTENT_LOCATION,
+            hdrs.CONTENT_RANGE,
+            hdrs.CONTENT_TYPE,
+            hdrs.ETAG,
+            hdrs.HOST,
+            hdrs.MAX_FORWARDS,
+            hdrs.SERVER,
+            hdrs.TRANSFER_ENCODING,
+            hdrs.USER_AGENT,
+        )
+        bad_hdr = next((h for h in singletons if len(headers.getall(h, ())) > 1), None)
+        if bad_hdr is not None:
+            raise BadHttpMessage(f"Duplicate '{bad_hdr}' header found.")
+
+        # keep-alive
+        conn = headers.get(hdrs.CONNECTION)
+        if conn:
+            v = conn.lower()
+            if v == "close":
+                close_conn = True
+            elif v == "keep-alive":
+                close_conn = False
+            # https://www.rfc-editor.org/rfc/rfc9110.html#name-101-switching-protocols
+            elif v == "upgrade" and headers.get(hdrs.UPGRADE):
+                upgrade = True
+
+        # encoding
+        enc = headers.get(hdrs.CONTENT_ENCODING)
+        if enc:
+            enc = enc.lower()
+            if enc in ("gzip", "deflate", "br"):
+                encoding = enc
+
+        # chunking
+        te = headers.get(hdrs.TRANSFER_ENCODING)
+        if te is not None:
+            if self._is_chunked_te(te):
+                chunked = True
+
+            if hdrs.CONTENT_LENGTH in headers:
+                raise BadHttpMessage(
+                    "Transfer-Encoding can't be present with Content-Length",
+                )
+
+        return (headers, raw_headers, close_conn, encoding, upgrade, chunked)
+
+    def set_upgraded(self, val: bool) -> None:
+        """Set connection upgraded (to websocket) mode.
+
+        :param bool val: new state.
+        """
+        self._upgraded = val
+
+
+class HttpRequestParser(HttpParser[RawRequestMessage]):
+    """Read request status line.
+
+    Exception .http_exceptions.BadStatusLine
+    could be raised in case of any errors in status line.
+    Returns RawRequestMessage.
+    """
+
+    def parse_message(self, lines: List[bytes]) -> RawRequestMessage:
+        # request line
+        line = lines[0].decode("utf-8", "surrogateescape")
+        try:
+            method, path, version = line.split(" ", maxsplit=2)
+        except ValueError:
+            raise BadHttpMethod(line) from None
+
+        if len(path) > self.max_line_size:
+            raise LineTooLong(
+                "Status line is too long", str(self.max_line_size), str(len(path))
+            )
+
+        # method
+        if not TOKENRE.fullmatch(method):
+            raise BadHttpMethod(method)
+
+        # version
+        match = VERSRE.fullmatch(version)
+        if match is None:
+            raise BadStatusLine(line)
+        version_o = HttpVersion(int(match.group(1)), int(match.group(2)))
+
+        if method == "CONNECT":
+            # authority-form,
+            # https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.3
+            url = URL.build(authority=path, encoded=True)
+        elif path.startswith("/"):
+            # origin-form,
+            # https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.1
+            path_part, _hash_separator, url_fragment = path.partition("#")
+            path_part, _question_mark_separator, qs_part = path_part.partition("?")
+
+            # NOTE: `yarl.URL.build()` is used to mimic what the Cython-based
+            # NOTE: parser does, otherwise it results into the same
+            # NOTE: HTTP Request-Line input producing different
+            # NOTE: `yarl.URL()` objects
+            url = URL.build(
+                path=path_part,
+                query_string=qs_part,
+                fragment=url_fragment,
+                encoded=True,
+            )
+        elif path == "*" and method == "OPTIONS":
+            # asterisk-form,
+            url = URL(path, encoded=True)
+        else:
+            # absolute-form for proxy maybe,
+            # https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.2
+            url = URL(path, encoded=True)
+            if url.scheme == "":
+                # not absolute-form
+                raise InvalidURLError(
+                    path.encode(errors="surrogateescape").decode("latin1")
+                )
+
+        # read headers
+        (
+            headers,
+            raw_headers,
+            close,
+            compression,
+            upgrade,
+            chunked,
+        ) = self.parse_headers(lines)
+
+        if close is None:  # then the headers weren't set in the request
+            if version_o <= HttpVersion10:  # HTTP 1.0 must asks to not close
+                close = True
+            else:  # HTTP 1.1 must ask to close.
+                close = False
+
+        return RawRequestMessage(
+            method,
+            path,
+            version_o,
+            headers,
+            raw_headers,
+            close,
+            compression,
+            upgrade,
+            chunked,
+            url,
+        )
+
+    def _is_chunked_te(self, te: str) -> bool:
+        if te.rsplit(",", maxsplit=1)[-1].strip(" \t").lower() == "chunked":
+            return True
+        # https://www.rfc-editor.org/rfc/rfc9112#section-6.3-2.4.3
+        raise BadHttpMessage("Request has invalid `Transfer-Encoding`")
+
+
+class HttpResponseParser(HttpParser[RawResponseMessage]):
+    """Read response status line and headers.
+
+    BadStatusLine could be raised in case of any errors in status line.
+    Returns RawResponseMessage.
+    """
+
+    # Lax mode should only be enabled on response parser.
+    lax = not DEBUG
+
+    def feed_data(
+        self,
+        data: bytes,
+        SEP: Optional[_SEP] = None,
+        *args: Any,
+        **kwargs: Any,
+    ) -> Tuple[List[Tuple[RawResponseMessage, StreamReader]], bool, bytes]:
+        if SEP is None:
+            SEP = b"\r\n" if DEBUG else b"\n"
+        return super().feed_data(data, SEP, *args, **kwargs)
+
+    def parse_message(self, lines: List[bytes]) -> RawResponseMessage:
+        line = lines[0].decode("utf-8", "surrogateescape")
+        try:
+            version, status = line.split(maxsplit=1)
+        except ValueError:
+            raise BadStatusLine(line) from None
+
+        try:
+            status, reason = status.split(maxsplit=1)
+        except ValueError:
+            status = status.strip()
+            reason = ""
+
+        if len(reason) > self.max_line_size:
+            raise LineTooLong(
+                "Status line is too long", str(self.max_line_size), str(len(reason))
+            )
+
+        # version
+        match = VERSRE.fullmatch(version)
+        if match is None:
+            raise BadStatusLine(line)
+        version_o = HttpVersion(int(match.group(1)), int(match.group(2)))
+
+        # The status code is a three-digit ASCII number, no padding
+        if len(status) != 3 or not DIGITS.fullmatch(status):
+            raise BadStatusLine(line)
+        status_i = int(status)
+
+        # read headers
+        (
+            headers,
+            raw_headers,
+            close,
+            compression,
+            upgrade,
+            chunked,
+        ) = self.parse_headers(lines)
+
+        if close is None:
+            if version_o <= HttpVersion10:
+                close = True
+            # https://www.rfc-editor.org/rfc/rfc9112.html#name-message-body-length
+            elif 100 <= status_i < 200 or status_i in {204, 304}:
+                close = False
+            elif hdrs.CONTENT_LENGTH in headers or hdrs.TRANSFER_ENCODING in headers:
+                close = False
+            else:
+                # https://www.rfc-editor.org/rfc/rfc9112.html#section-6.3-2.8
+                close = True
+
+        return RawResponseMessage(
+            version_o,
+            status_i,
+            reason.strip(),
+            headers,
+            raw_headers,
+            close,
+            compression,
+            upgrade,
+            chunked,
+        )
+
+    def _is_chunked_te(self, te: str) -> bool:
+        # https://www.rfc-editor.org/rfc/rfc9112#section-6.3-2.4.2
+        return te.rsplit(",", maxsplit=1)[-1].strip(" \t").lower() == "chunked"
+
+
+class HttpPayloadParser:
+    def __init__(
+        self,
+        payload: StreamReader,
+        length: Optional[int] = None,
+        chunked: bool = False,
+        compression: Optional[str] = None,
+        code: Optional[int] = None,
+        method: Optional[str] = None,
+        response_with_body: bool = True,
+        auto_decompress: bool = True,
+        lax: bool = False,
+    ) -> None:
+        self._length = 0
+        self._type = ParseState.PARSE_UNTIL_EOF
+        self._chunk = ChunkState.PARSE_CHUNKED_SIZE
+        self._chunk_size = 0
+        self._chunk_tail = b""
+        self._auto_decompress = auto_decompress
+        self._lax = lax
+        self.done = False
+
+        # payload decompression wrapper
+        if response_with_body and compression and self._auto_decompress:
+            real_payload: Union[StreamReader, DeflateBuffer] = DeflateBuffer(
+                payload, compression
+            )
+        else:
+            real_payload = payload
+
+        # payload parser
+        if not response_with_body:
+            # don't parse payload if it's not expected to be received
+            self._type = ParseState.PARSE_NONE
+            real_payload.feed_eof()
+            self.done = True
+        elif chunked:
+            self._type = ParseState.PARSE_CHUNKED
+        elif length is not None:
+            self._type = ParseState.PARSE_LENGTH
+            self._length = length
+            if self._length == 0:
+                real_payload.feed_eof()
+                self.done = True
+
+        self.payload = real_payload
+
+    def feed_eof(self) -> None:
+        if self._type == ParseState.PARSE_UNTIL_EOF:
+            self.payload.feed_eof()
+        elif self._type == ParseState.PARSE_LENGTH:
+            raise ContentLengthError(
+                "Not enough data for satisfy content length header."
+            )
+        elif self._type == ParseState.PARSE_CHUNKED:
+            raise TransferEncodingError(
+                "Not enough data for satisfy transfer length header."
+            )
+
+    def feed_data(
+        self, chunk: bytes, SEP: _SEP = b"\r\n", CHUNK_EXT: bytes = b";"
+    ) -> Tuple[bool, bytes]:
+        # Read specified amount of bytes
+        if self._type == ParseState.PARSE_LENGTH:
+            required = self._length
+            chunk_len = len(chunk)
+
+            if required >= chunk_len:
+                self._length = required - chunk_len
+                self.payload.feed_data(chunk, chunk_len)
+                if self._length == 0:
+                    self.payload.feed_eof()
+                    return True, b""
+            else:
+                self._length = 0
+                self.payload.feed_data(chunk[:required], required)
+                self.payload.feed_eof()
+                return True, chunk[required:]
+
+        # Chunked transfer encoding parser
+        elif self._type == ParseState.PARSE_CHUNKED:
+            if self._chunk_tail:
+                chunk = self._chunk_tail + chunk
+                self._chunk_tail = b""
+
+            while chunk:
+
+                # read next chunk size
+                if self._chunk == ChunkState.PARSE_CHUNKED_SIZE:
+                    pos = chunk.find(SEP)
+                    if pos >= 0:
+                        i = chunk.find(CHUNK_EXT, 0, pos)
+                        if i >= 0:
+                            size_b = chunk[:i]  # strip chunk-extensions
+                            # Verify no LF in the chunk-extension
+                            if b"\n" in (ext := chunk[i:pos]):
+                                exc = BadHttpMessage(
+                                    f"Unexpected LF in chunk-extension: {ext!r}"
+                                )
+                                set_exception(self.payload, exc)
+                                raise exc
+                        else:
+                            size_b = chunk[:pos]
+
+                        if self._lax:  # Allow whitespace in lax mode.
+                            size_b = size_b.strip()
+
+                        if not re.fullmatch(HEXDIGITS, size_b):
+                            exc = TransferEncodingError(
+                                chunk[:pos].decode("ascii", "surrogateescape")
+                            )
+                            set_exception(self.payload, exc)
+                            raise exc
+                        size = int(bytes(size_b), 16)
+
+                        chunk = chunk[pos + len(SEP) :]
+                        if size == 0:  # eof marker
+                            self._chunk = ChunkState.PARSE_MAYBE_TRAILERS
+                            if self._lax and chunk.startswith(b"\r"):
+                                chunk = chunk[1:]
+                        else:
+                            self._chunk = ChunkState.PARSE_CHUNKED_CHUNK
+                            self._chunk_size = size
+                            self.payload.begin_http_chunk_receiving()
+                    else:
+                        self._chunk_tail = chunk
+                        return False, b""
+
+                # read chunk and feed buffer
+                if self._chunk == ChunkState.PARSE_CHUNKED_CHUNK:
+                    required = self._chunk_size
+                    chunk_len = len(chunk)
+
+                    if required > chunk_len:
+                        self._chunk_size = required - chunk_len
+                        self.payload.feed_data(chunk, chunk_len)
+                        return False, b""
+                    else:
+                        self._chunk_size = 0
+                        self.payload.feed_data(chunk[:required], required)
+                        chunk = chunk[required:]
+                        self._chunk = ChunkState.PARSE_CHUNKED_CHUNK_EOF
+                        self.payload.end_http_chunk_receiving()
+
+                # toss the CRLF at the end of the chunk
+                if self._chunk == ChunkState.PARSE_CHUNKED_CHUNK_EOF:
+                    if self._lax and chunk.startswith(b"\r"):
+                        chunk = chunk[1:]
+                    if chunk[: len(SEP)] == SEP:
+                        chunk = chunk[len(SEP) :]
+                        self._chunk = ChunkState.PARSE_CHUNKED_SIZE
+                    else:
+                        self._chunk_tail = chunk
+                        return False, b""
+
+                # if stream does not contain trailer, after 0\r\n
+                # we should get another \r\n otherwise
+                # trailers needs to be skipped until \r\n\r\n
+                if self._chunk == ChunkState.PARSE_MAYBE_TRAILERS:
+                    head = chunk[: len(SEP)]
+                    if head == SEP:
+                        # end of stream
+                        self.payload.feed_eof()
+                        return True, chunk[len(SEP) :]
+                    # Both CR and LF, or only LF may not be received yet. It is
+                    # expected that CRLF or LF will be shown at the very first
+                    # byte next time, otherwise trailers should come. The last
+                    # CRLF which marks the end of response might not be
+                    # contained in the same TCP segment which delivered the
+                    # size indicator.
+                    if not head:
+                        return False, b""
+                    if head == SEP[:1]:
+                        self._chunk_tail = head
+                        return False, b""
+                    self._chunk = ChunkState.PARSE_TRAILERS
+
+                # read and discard trailer up to the CRLF terminator
+                if self._chunk == ChunkState.PARSE_TRAILERS:
+                    pos = chunk.find(SEP)
+                    if pos >= 0:
+                        chunk = chunk[pos + len(SEP) :]
+                        self._chunk = ChunkState.PARSE_MAYBE_TRAILERS
+                    else:
+                        self._chunk_tail = chunk
+                        return False, b""
+
+        # Read all bytes until eof
+        elif self._type == ParseState.PARSE_UNTIL_EOF:
+            self.payload.feed_data(chunk, len(chunk))
+
+        return False, b""
+
+
+class DeflateBuffer:
+    """DeflateStream decompress stream and feed data into specified stream."""
+
+    decompressor: Any
+
+    def __init__(self, out: StreamReader, encoding: Optional[str]) -> None:
+        self.out = out
+        self.size = 0
+        self.encoding = encoding
+        self._started_decoding = False
+
+        self.decompressor: Union[BrotliDecompressor, ZLibDecompressor]
+        if encoding == "br":
+            if not HAS_BROTLI:  # pragma: no cover
+                raise ContentEncodingError(
+                    "Can not decode content-encoding: brotli (br). "
+                    "Please install `Brotli`"
+                )
+            self.decompressor = BrotliDecompressor()
+        else:
+            self.decompressor = ZLibDecompressor(encoding=encoding)
+
+    def set_exception(
+        self,
+        exc: BaseException,
+        exc_cause: BaseException = _EXC_SENTINEL,
+    ) -> None:
+        set_exception(self.out, exc, exc_cause)
+
+    def feed_data(self, chunk: bytes, size: int) -> None:
+        if not size:
+            return
+
+        self.size += size
+
+        # RFC1950
+        # bits 0..3 = CM = 0b1000 = 8 = "deflate"
+        # bits 4..7 = CINFO = 1..7 = windows size.
+        if (
+            not self._started_decoding
+            and self.encoding == "deflate"
+            and chunk[0] & 0xF != 8
+        ):
+            # Change the decoder to decompress incorrectly compressed data
+            # Actually we should issue a warning about non-RFC-compliant data.
+            self.decompressor = ZLibDecompressor(
+                encoding=self.encoding, suppress_deflate_header=True
+            )
+
+        try:
+            chunk = self.decompressor.decompress_sync(chunk)
+        except Exception:
+            raise ContentEncodingError(
+                "Can not decode content-encoding: %s" % self.encoding
+            )
+
+        self._started_decoding = True
+
+        if chunk:
+            self.out.feed_data(chunk, len(chunk))
+
+    def feed_eof(self) -> None:
+        chunk = self.decompressor.flush()
+
+        if chunk or self.size > 0:
+            self.out.feed_data(chunk, len(chunk))
+            if self.encoding == "deflate" and not self.decompressor.eof:
+                raise ContentEncodingError("deflate")
+
+        self.out.feed_eof()
+
+    def begin_http_chunk_receiving(self) -> None:
+        self.out.begin_http_chunk_receiving()
+
+    def end_http_chunk_receiving(self) -> None:
+        self.out.end_http_chunk_receiving()
+
+
+HttpRequestParserPy = HttpRequestParser
+HttpResponseParserPy = HttpResponseParser
+RawRequestMessagePy = RawRequestMessage
+RawResponseMessagePy = RawResponseMessage
+
+try:
+    if not NO_EXTENSIONS:
+        from ._http_parser import (  # type: ignore[import-not-found,no-redef]
+            HttpRequestParser,
+            HttpResponseParser,
+            RawRequestMessage,
+            RawResponseMessage,
+        )
+
+        HttpRequestParserC = HttpRequestParser
+        HttpResponseParserC = HttpResponseParser
+        RawRequestMessageC = RawRequestMessage
+        RawResponseMessageC = RawResponseMessage
+except ImportError:  # pragma: no cover
+    pass

deepseek/lib/python3.10/site-packages/aiohttp/http_websocket.py

@@ -0,0 +1,36 @@
+"""WebSocket protocol versions 13 and 8."""
+
+from ._websocket.helpers import WS_KEY, ws_ext_gen, ws_ext_parse
+from ._websocket.models import (
+    WS_CLOSED_MESSAGE,
+    WS_CLOSING_MESSAGE,
+    WebSocketError,
+    WSCloseCode,
+    WSHandshakeError,
+    WSMessage,
+    WSMsgType,
+)
+from ._websocket.reader import WebSocketReader
+from ._websocket.writer import WebSocketWriter
+
+# Messages that the WebSocketResponse.receive needs to handle internally
+_INTERNAL_RECEIVE_TYPES = frozenset(
+    (WSMsgType.CLOSE, WSMsgType.CLOSING, WSMsgType.PING, WSMsgType.PONG)
+)
+
+
+__all__ = (
+    "WS_CLOSED_MESSAGE",
+    "WS_CLOSING_MESSAGE",
+    "WS_KEY",
+    "WebSocketReader",
+    "WebSocketWriter",
+    "WSMessage",
+    "WebSocketError",
+    "WSMsgType",
+    "WSCloseCode",
+    "ws_ext_gen",
+    "ws_ext_parse",
+    "WSHandshakeError",
+    "WSMessage",
+)

deepseek/lib/python3.10/site-packages/aiohttp/multipart.py

@@ -0,0 +1,1071 @@
+import base64
+import binascii
+import json
+import re
+import sys
+import uuid
+import warnings
+import zlib
+from collections import deque
+from types import TracebackType
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Deque,
+    Dict,
+    Iterator,
+    List,
+    Mapping,
+    Optional,
+    Sequence,
+    Tuple,
+    Type,
+    Union,
+    cast,
+)
+from urllib.parse import parse_qsl, unquote, urlencode
+
+from multidict import CIMultiDict, CIMultiDictProxy
+
+from .compression_utils import ZLibCompressor, ZLibDecompressor
+from .hdrs import (
+    CONTENT_DISPOSITION,
+    CONTENT_ENCODING,
+    CONTENT_LENGTH,
+    CONTENT_TRANSFER_ENCODING,
+    CONTENT_TYPE,
+)
+from .helpers import CHAR, TOKEN, parse_mimetype, reify
+from .http import HeadersParser
+from .payload import (
+    JsonPayload,
+    LookupError,
+    Order,
+    Payload,
+    StringPayload,
+    get_payload,
+    payload_type,
+)
+from .streams import StreamReader
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    from typing import TypeVar
+
+    Self = TypeVar("Self", bound="BodyPartReader")
+
+__all__ = (
+    "MultipartReader",
+    "MultipartWriter",
+    "BodyPartReader",
+    "BadContentDispositionHeader",
+    "BadContentDispositionParam",
+    "parse_content_disposition",
+    "content_disposition_filename",
+)
+
+
+if TYPE_CHECKING:
+    from .client_reqrep import ClientResponse
+
+
+class BadContentDispositionHeader(RuntimeWarning):
+    pass
+
+
+class BadContentDispositionParam(RuntimeWarning):
+    pass
+
+
+def parse_content_disposition(
+    header: Optional[str],
+) -> Tuple[Optional[str], Dict[str, str]]:
+    def is_token(string: str) -> bool:
+        return bool(string) and TOKEN >= set(string)
+
+    def is_quoted(string: str) -> bool:
+        return string[0] == string[-1] == '"'
+
+    def is_rfc5987(string: str) -> bool:
+        return is_token(string) and string.count("'") == 2
+
+    def is_extended_param(string: str) -> bool:
+        return string.endswith("*")
+
+    def is_continuous_param(string: str) -> bool:
+        pos = string.find("*") + 1
+        if not pos:
+            return False
+        substring = string[pos:-1] if string.endswith("*") else string[pos:]
+        return substring.isdigit()
+
+    def unescape(text: str, *, chars: str = "".join(map(re.escape, CHAR))) -> str:
+        return re.sub(f"\\\\([{chars}])", "\\1", text)
+
+    if not header:
+        return None, {}
+
+    disptype, *parts = header.split(";")
+    if not is_token(disptype):
+        warnings.warn(BadContentDispositionHeader(header))
+        return None, {}
+
+    params: Dict[str, str] = {}
+    while parts:
+        item = parts.pop(0)
+
+        if "=" not in item:
+            warnings.warn(BadContentDispositionHeader(header))
+            return None, {}
+
+        key, value = item.split("=", 1)
+        key = key.lower().strip()
+        value = value.lstrip()
+
+        if key in params:
+            warnings.warn(BadContentDispositionHeader(header))
+            return None, {}
+
+        if not is_token(key):
+            warnings.warn(BadContentDispositionParam(item))
+            continue
+
+        elif is_continuous_param(key):
+            if is_quoted(value):
+                value = unescape(value[1:-1])
+            elif not is_token(value):
+                warnings.warn(BadContentDispositionParam(item))
+                continue
+
+        elif is_extended_param(key):
+            if is_rfc5987(value):
+                encoding, _, value = value.split("'", 2)
+                encoding = encoding or "utf-8"
+            else:
+                warnings.warn(BadContentDispositionParam(item))
+                continue
+
+            try:
+                value = unquote(value, encoding, "strict")
+            except UnicodeDecodeError:  # pragma: nocover
+                warnings.warn(BadContentDispositionParam(item))
+                continue
+
+        else:
+            failed = True
+            if is_quoted(value):
+                failed = False
+                value = unescape(value[1:-1].lstrip("\\/"))
+            elif is_token(value):
+                failed = False
+            elif parts:
+                # maybe just ; in filename, in any case this is just
+                # one case fix, for proper fix we need to redesign parser
+                _value = f"{value};{parts[0]}"
+                if is_quoted(_value):
+                    parts.pop(0)
+                    value = unescape(_value[1:-1].lstrip("\\/"))
+                    failed = False
+
+            if failed:
+                warnings.warn(BadContentDispositionHeader(header))
+                return None, {}
+
+        params[key] = value
+
+    return disptype.lower(), params
+
+
+def content_disposition_filename(
+    params: Mapping[str, str], name: str = "filename"
+) -> Optional[str]:
+    name_suf = "%s*" % name
+    if not params:
+        return None
+    elif name_suf in params:
+        return params[name_suf]
+    elif name in params:
+        return params[name]
+    else:
+        parts = []
+        fnparams = sorted(
+            (key, value) for key, value in params.items() if key.startswith(name_suf)
+        )
+        for num, (key, value) in enumerate(fnparams):
+            _, tail = key.split("*", 1)
+            if tail.endswith("*"):
+                tail = tail[:-1]
+            if tail == str(num):
+                parts.append(value)
+            else:
+                break
+        if not parts:
+            return None
+        value = "".join(parts)
+        if "'" in value:
+            encoding, _, value = value.split("'", 2)
+            encoding = encoding or "utf-8"
+            return unquote(value, encoding, "strict")
+        return value
+
+
+class MultipartResponseWrapper:
+    """Wrapper around the MultipartReader.
+
+    It takes care about
+    underlying connection and close it when it needs in.
+    """
+
+    def __init__(
+        self,
+        resp: "ClientResponse",
+        stream: "MultipartReader",
+    ) -> None:
+        self.resp = resp
+        self.stream = stream
+
+    def __aiter__(self) -> "MultipartResponseWrapper":
+        return self
+
+    async def __anext__(
+        self,
+    ) -> Union["MultipartReader", "BodyPartReader"]:
+        part = await self.next()
+        if part is None:
+            raise StopAsyncIteration
+        return part
+
+    def at_eof(self) -> bool:
+        """Returns True when all response data had been read."""
+        return self.resp.content.at_eof()
+
+    async def next(
+        self,
+    ) -> Optional[Union["MultipartReader", "BodyPartReader"]]:
+        """Emits next multipart reader object."""
+        item = await self.stream.next()
+        if self.stream.at_eof():
+            await self.release()
+        return item
+
+    async def release(self) -> None:
+        """Release the connection gracefully.
+
+        All remaining content is read to the void.
+        """
+        await self.resp.release()
+
+
+class BodyPartReader:
+    """Multipart reader for single body part."""
+
+    chunk_size = 8192
+
+    def __init__(
+        self,
+        boundary: bytes,
+        headers: "CIMultiDictProxy[str]",
+        content: StreamReader,
+        *,
+        subtype: str = "mixed",
+        default_charset: Optional[str] = None,
+    ) -> None:
+        self.headers = headers
+        self._boundary = boundary
+        self._boundary_len = len(boundary) + 2  # Boundary + \r\n
+        self._content = content
+        self._default_charset = default_charset
+        self._at_eof = False
+        self._is_form_data = subtype == "form-data"
+        # https://datatracker.ietf.org/doc/html/rfc7578#section-4.8
+        length = None if self._is_form_data else self.headers.get(CONTENT_LENGTH, None)
+        self._length = int(length) if length is not None else None
+        self._read_bytes = 0
+        self._unread: Deque[bytes] = deque()
+        self._prev_chunk: Optional[bytes] = None
+        self._content_eof = 0
+        self._cache: Dict[str, Any] = {}
+
+    def __aiter__(self: Self) -> Self:
+        return self
+
+    async def __anext__(self) -> bytes:
+        part = await self.next()
+        if part is None:
+            raise StopAsyncIteration
+        return part
+
+    async def next(self) -> Optional[bytes]:
+        item = await self.read()
+        if not item:
+            return None
+        return item
+
+    async def read(self, *, decode: bool = False) -> bytes:
+        """Reads body part data.
+
+        decode: Decodes data following by encoding
+                method from Content-Encoding header. If it missed
+                data remains untouched
+        """
+        if self._at_eof:
+            return b""
+        data = bytearray()
+        while not self._at_eof:
+            data.extend(await self.read_chunk(self.chunk_size))
+        if decode:
+            return self.decode(data)
+        return data
+
+    async def read_chunk(self, size: int = chunk_size) -> bytes:
+        """Reads body part content chunk of the specified size.
+
+        size: chunk size
+        """
+        if self._at_eof:
+            return b""
+        if self._length:
+            chunk = await self._read_chunk_from_length(size)
+        else:
+            chunk = await self._read_chunk_from_stream(size)
+
+        # For the case of base64 data, we must read a fragment of size with a
+        # remainder of 0 by dividing by 4 for string without symbols \n or \r
+        encoding = self.headers.get(CONTENT_TRANSFER_ENCODING)
+        if encoding and encoding.lower() == "base64":
+            stripped_chunk = b"".join(chunk.split())
+            remainder = len(stripped_chunk) % 4
+
+            while remainder != 0 and not self.at_eof():
+                over_chunk_size = 4 - remainder
+                over_chunk = b""
+
+                if self._prev_chunk:
+                    over_chunk = self._prev_chunk[:over_chunk_size]
+                    self._prev_chunk = self._prev_chunk[len(over_chunk) :]
+
+                if len(over_chunk) != over_chunk_size:
+                    over_chunk += await self._content.read(4 - len(over_chunk))
+
+                if not over_chunk:
+                    self._at_eof = True
+
+                stripped_chunk += b"".join(over_chunk.split())
+                chunk += over_chunk
+                remainder = len(stripped_chunk) % 4
+
+        self._read_bytes += len(chunk)
+        if self._read_bytes == self._length:
+            self._at_eof = True
+        if self._at_eof:
+            clrf = await self._content.readline()
+            assert (
+                b"\r\n" == clrf
+            ), "reader did not read all the data or it is malformed"
+        return chunk
+
+    async def _read_chunk_from_length(self, size: int) -> bytes:
+        # Reads body part content chunk of the specified size.
+        # The body part must has Content-Length header with proper value.
+        assert self._length is not None, "Content-Length required for chunked read"
+        chunk_size = min(size, self._length - self._read_bytes)
+        chunk = await self._content.read(chunk_size)
+        if self._content.at_eof():
+            self._at_eof = True
+        return chunk
+
+    async def _read_chunk_from_stream(self, size: int) -> bytes:
+        # Reads content chunk of body part with unknown length.
+        # The Content-Length header for body part is not necessary.
+        assert (
+            size >= self._boundary_len
+        ), "Chunk size must be greater or equal than boundary length + 2"
+        first_chunk = self._prev_chunk is None
+        if first_chunk:
+            self._prev_chunk = await self._content.read(size)
+
+        chunk = b""
+        # content.read() may return less than size, so we need to loop to ensure
+        # we have enough data to detect the boundary.
+        while len(chunk) < self._boundary_len:
+            chunk += await self._content.read(size)
+            self._content_eof += int(self._content.at_eof())
+            assert self._content_eof < 3, "Reading after EOF"
+            if self._content_eof:
+                break
+        if len(chunk) > size:
+            self._content.unread_data(chunk[size:])
+            chunk = chunk[:size]
+
+        assert self._prev_chunk is not None
+        window = self._prev_chunk + chunk
+        sub = b"\r\n" + self._boundary
+        if first_chunk:
+            idx = window.find(sub)
+        else:
+            idx = window.find(sub, max(0, len(self._prev_chunk) - len(sub)))
+        if idx >= 0:
+            # pushing boundary back to content
+            with warnings.catch_warnings():
+                warnings.filterwarnings("ignore", category=DeprecationWarning)
+                self._content.unread_data(window[idx:])
+            if size > idx:
+                self._prev_chunk = self._prev_chunk[:idx]
+            chunk = window[len(self._prev_chunk) : idx]
+            if not chunk:
+                self._at_eof = True
+        result = self._prev_chunk
+        self._prev_chunk = chunk
+        return result
+
+    async def readline(self) -> bytes:
+        """Reads body part by line by line."""
+        if self._at_eof:
+            return b""
+
+        if self._unread:
+            line = self._unread.popleft()
+        else:
+            line = await self._content.readline()
+
+        if line.startswith(self._boundary):
+            # the very last boundary may not come with \r\n,
+            # so set single rules for everyone
+            sline = line.rstrip(b"\r\n")
+            boundary = self._boundary
+            last_boundary = self._boundary + b"--"
+            # ensure that we read exactly the boundary, not something alike
+            if sline == boundary or sline == last_boundary:
+                self._at_eof = True
+                self._unread.append(line)
+                return b""
+        else:
+            next_line = await self._content.readline()
+            if next_line.startswith(self._boundary):
+                line = line[:-2]  # strip CRLF but only once
+            self._unread.append(next_line)
+
+        return line
+
+    async def release(self) -> None:
+        """Like read(), but reads all the data to the void."""
+        if self._at_eof:
+            return
+        while not self._at_eof:
+            await self.read_chunk(self.chunk_size)
+
+    async def text(self, *, encoding: Optional[str] = None) -> str:
+        """Like read(), but assumes that body part contains text data."""
+        data = await self.read(decode=True)
+        # see https://www.w3.org/TR/html5/forms.html#multipart/form-data-encoding-algorithm
+        # and https://dvcs.w3.org/hg/xhr/raw-file/tip/Overview.html#dom-xmlhttprequest-send
+        encoding = encoding or self.get_charset(default="utf-8")
+        return data.decode(encoding)
+
+    async def json(self, *, encoding: Optional[str] = None) -> Optional[Dict[str, Any]]:
+        """Like read(), but assumes that body parts contains JSON data."""
+        data = await self.read(decode=True)
+        if not data:
+            return None
+        encoding = encoding or self.get_charset(default="utf-8")
+        return cast(Dict[str, Any], json.loads(data.decode(encoding)))
+
+    async def form(self, *, encoding: Optional[str] = None) -> List[Tuple[str, str]]:
+        """Like read(), but assumes that body parts contain form urlencoded data."""
+        data = await self.read(decode=True)
+        if not data:
+            return []
+        if encoding is not None:
+            real_encoding = encoding
+        else:
+            real_encoding = self.get_charset(default="utf-8")
+        try:
+            decoded_data = data.rstrip().decode(real_encoding)
+        except UnicodeDecodeError:
+            raise ValueError("data cannot be decoded with %s encoding" % real_encoding)
+
+        return parse_qsl(
+            decoded_data,
+            keep_blank_values=True,
+            encoding=real_encoding,
+        )
+
+    def at_eof(self) -> bool:
+        """Returns True if the boundary was reached or False otherwise."""
+        return self._at_eof
+
+    def decode(self, data: bytes) -> bytes:
+        """Decodes data.
+
+        Decoding is done according the specified Content-Encoding
+        or Content-Transfer-Encoding headers value.
+        """
+        if CONTENT_TRANSFER_ENCODING in self.headers:
+            data = self._decode_content_transfer(data)
+        # https://datatracker.ietf.org/doc/html/rfc7578#section-4.8
+        if not self._is_form_data and CONTENT_ENCODING in self.headers:
+            return self._decode_content(data)
+        return data
+
+    def _decode_content(self, data: bytes) -> bytes:
+        encoding = self.headers.get(CONTENT_ENCODING, "").lower()
+        if encoding == "identity":
+            return data
+        if encoding in {"deflate", "gzip"}:
+            return ZLibDecompressor(
+                encoding=encoding,
+                suppress_deflate_header=True,
+            ).decompress_sync(data)
+
+        raise RuntimeError(f"unknown content encoding: {encoding}")
+
+    def _decode_content_transfer(self, data: bytes) -> bytes:
+        encoding = self.headers.get(CONTENT_TRANSFER_ENCODING, "").lower()
+
+        if encoding == "base64":
+            return base64.b64decode(data)
+        elif encoding == "quoted-printable":
+            return binascii.a2b_qp(data)
+        elif encoding in ("binary", "8bit", "7bit"):
+            return data
+        else:
+            raise RuntimeError(f"unknown content transfer encoding: {encoding}")
+
+    def get_charset(self, default: str) -> str:
+        """Returns charset parameter from Content-Type header or default."""
+        ctype = self.headers.get(CONTENT_TYPE, "")
+        mimetype = parse_mimetype(ctype)
+        return mimetype.parameters.get("charset", self._default_charset or default)
+
+    @reify
+    def name(self) -> Optional[str]:
+        """Returns name specified in Content-Disposition header.
+
+        If the header is missing or malformed, returns None.
+        """
+        _, params = parse_content_disposition(self.headers.get(CONTENT_DISPOSITION))
+        return content_disposition_filename(params, "name")
+
+    @reify
+    def filename(self) -> Optional[str]:
+        """Returns filename specified in Content-Disposition header.
+
+        Returns None if the header is missing or malformed.
+        """
+        _, params = parse_content_disposition(self.headers.get(CONTENT_DISPOSITION))
+        return content_disposition_filename(params, "filename")
+
+
+@payload_type(BodyPartReader, order=Order.try_first)
+class BodyPartReaderPayload(Payload):
+    _value: BodyPartReader
+
+    def __init__(self, value: BodyPartReader, *args: Any, **kwargs: Any) -> None:
+        super().__init__(value, *args, **kwargs)
+
+        params: Dict[str, str] = {}
+        if value.name is not None:
+            params["name"] = value.name
+        if value.filename is not None:
+            params["filename"] = value.filename
+
+        if params:
+            self.set_content_disposition("attachment", True, **params)
+
+    def decode(self, encoding: str = "utf-8", errors: str = "strict") -> str:
+        raise TypeError("Unable to decode.")
+
+    async def write(self, writer: Any) -> None:
+        field = self._value
+        chunk = await field.read_chunk(size=2**16)
+        while chunk:
+            await writer.write(field.decode(chunk))
+            chunk = await field.read_chunk(size=2**16)
+
+
+class MultipartReader:
+    """Multipart body reader."""
+
+    #: Response wrapper, used when multipart readers constructs from response.
+    response_wrapper_cls = MultipartResponseWrapper
+    #: Multipart reader class, used to handle multipart/* body parts.
+    #: None points to type(self)
+    multipart_reader_cls: Optional[Type["MultipartReader"]] = None
+    #: Body part reader class for non multipart/* content types.
+    part_reader_cls = BodyPartReader
+
+    def __init__(self, headers: Mapping[str, str], content: StreamReader) -> None:
+        self._mimetype = parse_mimetype(headers[CONTENT_TYPE])
+        assert self._mimetype.type == "multipart", "multipart/* content type expected"
+        if "boundary" not in self._mimetype.parameters:
+            raise ValueError(
+                "boundary missed for Content-Type: %s" % headers[CONTENT_TYPE]
+            )
+
+        self.headers = headers
+        self._boundary = ("--" + self._get_boundary()).encode()
+        self._content = content
+        self._default_charset: Optional[str] = None
+        self._last_part: Optional[Union["MultipartReader", BodyPartReader]] = None
+        self._at_eof = False
+        self._at_bof = True
+        self._unread: List[bytes] = []
+
+    def __aiter__(self: Self) -> Self:
+        return self
+
+    async def __anext__(
+        self,
+    ) -> Optional[Union["MultipartReader", BodyPartReader]]:
+        part = await self.next()
+        if part is None:
+            raise StopAsyncIteration
+        return part
+
+    @classmethod
+    def from_response(
+        cls,
+        response: "ClientResponse",
+    ) -> MultipartResponseWrapper:
+        """Constructs reader instance from HTTP response.
+
+        :param response: :class:`~aiohttp.client.ClientResponse` instance
+        """
+        obj = cls.response_wrapper_cls(
+            response, cls(response.headers, response.content)
+        )
+        return obj
+
+    def at_eof(self) -> bool:
+        """Returns True if the final boundary was reached, false otherwise."""
+        return self._at_eof
+
+    async def next(
+        self,
+    ) -> Optional[Union["MultipartReader", BodyPartReader]]:
+        """Emits the next multipart body part."""
+        # So, if we're at BOF, we need to skip till the boundary.
+        if self._at_eof:
+            return None
+        await self._maybe_release_last_part()
+        if self._at_bof:
+            await self._read_until_first_boundary()
+            self._at_bof = False
+        else:
+            await self._read_boundary()
+        if self._at_eof:  # we just read the last boundary, nothing to do there
+            return None
+
+        part = await self.fetch_next_part()
+        # https://datatracker.ietf.org/doc/html/rfc7578#section-4.6
+        if (
+            self._last_part is None
+            and self._mimetype.subtype == "form-data"
+            and isinstance(part, BodyPartReader)
+        ):
+            _, params = parse_content_disposition(part.headers.get(CONTENT_DISPOSITION))
+            if params.get("name") == "_charset_":
+                # Longest encoding in https://encoding.spec.whatwg.org/encodings.json
+                # is 19 characters, so 32 should be more than enough for any valid encoding.
+                charset = await part.read_chunk(32)
+                if len(charset) > 31:
+                    raise RuntimeError("Invalid default charset")
+                self._default_charset = charset.strip().decode()
+                part = await self.fetch_next_part()
+        self._last_part = part
+        return self._last_part
+
+    async def release(self) -> None:
+        """Reads all the body parts to the void till the final boundary."""
+        while not self._at_eof:
+            item = await self.next()
+            if item is None:
+                break
+            await item.release()
+
+    async def fetch_next_part(
+        self,
+    ) -> Union["MultipartReader", BodyPartReader]:
+        """Returns the next body part reader."""
+        headers = await self._read_headers()
+        return self._get_part_reader(headers)
+
+    def _get_part_reader(
+        self,
+        headers: "CIMultiDictProxy[str]",
+    ) -> Union["MultipartReader", BodyPartReader]:
+        """Dispatches the response by the `Content-Type` header.
+
+        Returns a suitable reader instance.
+
+        :param dict headers: Response headers
+        """
+        ctype = headers.get(CONTENT_TYPE, "")
+        mimetype = parse_mimetype(ctype)
+
+        if mimetype.type == "multipart":
+            if self.multipart_reader_cls is None:
+                return type(self)(headers, self._content)
+            return self.multipart_reader_cls(headers, self._content)
+        else:
+            return self.part_reader_cls(
+                self._boundary,
+                headers,
+                self._content,
+                subtype=self._mimetype.subtype,
+                default_charset=self._default_charset,
+            )
+
+    def _get_boundary(self) -> str:
+        boundary = self._mimetype.parameters["boundary"]
+        if len(boundary) > 70:
+            raise ValueError("boundary %r is too long (70 chars max)" % boundary)
+
+        return boundary
+
+    async def _readline(self) -> bytes:
+        if self._unread:
+            return self._unread.pop()
+        return await self._content.readline()
+
+    async def _read_until_first_boundary(self) -> None:
+        while True:
+            chunk = await self._readline()
+            if chunk == b"":
+                raise ValueError(
+                    "Could not find starting boundary %r" % (self._boundary)
+                )
+            chunk = chunk.rstrip()
+            if chunk == self._boundary:
+                return
+            elif chunk == self._boundary + b"--":
+                self._at_eof = True
+                return
+
+    async def _read_boundary(self) -> None:
+        chunk = (await self._readline()).rstrip()
+        if chunk == self._boundary:
+            pass
+        elif chunk == self._boundary + b"--":
+            self._at_eof = True
+            epilogue = await self._readline()
+            next_line = await self._readline()
+
+            # the epilogue is expected and then either the end of input or the
+            # parent multipart boundary, if the parent boundary is found then
+            # it should be marked as unread and handed to the parent for
+            # processing
+            if next_line[:2] == b"--":
+                self._unread.append(next_line)
+            # otherwise the request is likely missing an epilogue and both
+            # lines should be passed to the parent for processing
+            # (this handles the old behavior gracefully)
+            else:
+                self._unread.extend([next_line, epilogue])
+        else:
+            raise ValueError(f"Invalid boundary {chunk!r}, expected {self._boundary!r}")
+
+    async def _read_headers(self) -> "CIMultiDictProxy[str]":
+        lines = [b""]
+        while True:
+            chunk = await self._content.readline()
+            chunk = chunk.strip()
+            lines.append(chunk)
+            if not chunk:
+                break
+        parser = HeadersParser()
+        headers, raw_headers = parser.parse_headers(lines)
+        return headers
+
+    async def _maybe_release_last_part(self) -> None:
+        """Ensures that the last read body part is read completely."""
+        if self._last_part is not None:
+            if not self._last_part.at_eof():
+                await self._last_part.release()
+            self._unread.extend(self._last_part._unread)
+            self._last_part = None
+
+
+_Part = Tuple[Payload, str, str]
+
+
+class MultipartWriter(Payload):
+    """Multipart body writer."""
+
+    _value: None
+
+    def __init__(self, subtype: str = "mixed", boundary: Optional[str] = None) -> None:
+        boundary = boundary if boundary is not None else uuid.uuid4().hex
+        # The underlying Payload API demands a str (utf-8), not bytes,
+        # so we need to ensure we don't lose anything during conversion.
+        # As a result, require the boundary to be ASCII only.
+        # In both situations.
+
+        try:
+            self._boundary = boundary.encode("ascii")
+        except UnicodeEncodeError:
+            raise ValueError("boundary should contain ASCII only chars") from None
+        ctype = f"multipart/{subtype}; boundary={self._boundary_value}"
+
+        super().__init__(None, content_type=ctype)
+
+        self._parts: List[_Part] = []
+        self._is_form_data = subtype == "form-data"
+
+    def __enter__(self) -> "MultipartWriter":
+        return self
+
+    def __exit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc_val: Optional[BaseException],
+        exc_tb: Optional[TracebackType],
+    ) -> None:
+        pass
+
+    def __iter__(self) -> Iterator[_Part]:
+        return iter(self._parts)
+
+    def __len__(self) -> int:
+        return len(self._parts)
+
+    def __bool__(self) -> bool:
+        return True
+
+    _valid_tchar_regex = re.compile(rb"\A[!#$%&'*+\-.^_`|~\w]+\Z")
+    _invalid_qdtext_char_regex = re.compile(rb"[\x00-\x08\x0A-\x1F\x7F]")
+
+    @property
+    def _boundary_value(self) -> str:
+        """Wrap boundary parameter value in quotes, if necessary.
+
+        Reads self.boundary and returns a unicode string.
+        """
+        # Refer to RFCs 7231, 7230, 5234.
+        #
+        # parameter      = token "=" ( token / quoted-string )
+        # token          = 1*tchar
+        # quoted-string  = DQUOTE *( qdtext / quoted-pair ) DQUOTE
+        # qdtext         = HTAB / SP / %x21 / %x23-5B / %x5D-7E / obs-text
+        # obs-text       = %x80-FF
+        # quoted-pair    = "\" ( HTAB / SP / VCHAR / obs-text )
+        # tchar          = "!" / "#" / "$" / "%" / "&" / "'" / "*"
+        #                  / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
+        #                  / DIGIT / ALPHA
+        #                  ; any VCHAR, except delimiters
+        # VCHAR           = %x21-7E
+        value = self._boundary
+        if re.match(self._valid_tchar_regex, value):
+            return value.decode("ascii")  # cannot fail
+
+        if re.search(self._invalid_qdtext_char_regex, value):
+            raise ValueError("boundary value contains invalid characters")
+
+        # escape %x5C and %x22
+        quoted_value_content = value.replace(b"\\", b"\\\\")
+        quoted_value_content = quoted_value_content.replace(b'"', b'\\"')
+
+        return '"' + quoted_value_content.decode("ascii") + '"'
+
+    @property
+    def boundary(self) -> str:
+        return self._boundary.decode("ascii")
+
+    def append(self, obj: Any, headers: Optional[Mapping[str, str]] = None) -> Payload:
+        if headers is None:
+            headers = CIMultiDict()
+
+        if isinstance(obj, Payload):
+            obj.headers.update(headers)
+            return self.append_payload(obj)
+        else:
+            try:
+                payload = get_payload(obj, headers=headers)
+            except LookupError:
+                raise TypeError("Cannot create payload from %r" % obj)
+            else:
+                return self.append_payload(payload)
+
+    def append_payload(self, payload: Payload) -> Payload:
+        """Adds a new body part to multipart writer."""
+        encoding: Optional[str] = None
+        te_encoding: Optional[str] = None
+        if self._is_form_data:
+            # https://datatracker.ietf.org/doc/html/rfc7578#section-4.7
+            # https://datatracker.ietf.org/doc/html/rfc7578#section-4.8
+            assert (
+                not {CONTENT_ENCODING, CONTENT_LENGTH, CONTENT_TRANSFER_ENCODING}
+                & payload.headers.keys()
+            )
+            # Set default Content-Disposition in case user doesn't create one
+            if CONTENT_DISPOSITION not in payload.headers:
+                name = f"section-{len(self._parts)}"
+                payload.set_content_disposition("form-data", name=name)
+        else:
+            # compression
+            encoding = payload.headers.get(CONTENT_ENCODING, "").lower()
+            if encoding and encoding not in ("deflate", "gzip", "identity"):
+                raise RuntimeError(f"unknown content encoding: {encoding}")
+            if encoding == "identity":
+                encoding = None
+
+            # te encoding
+            te_encoding = payload.headers.get(CONTENT_TRANSFER_ENCODING, "").lower()
+            if te_encoding not in ("", "base64", "quoted-printable", "binary"):
+                raise RuntimeError(f"unknown content transfer encoding: {te_encoding}")
+            if te_encoding == "binary":
+                te_encoding = None
+
+            # size
+            size = payload.size
+            if size is not None and not (encoding or te_encoding):
+                payload.headers[CONTENT_LENGTH] = str(size)
+
+        self._parts.append((payload, encoding, te_encoding))  # type: ignore[arg-type]
+        return payload
+
+    def append_json(
+        self, obj: Any, headers: Optional[Mapping[str, str]] = None
+    ) -> Payload:
+        """Helper to append JSON part."""
+        if headers is None:
+            headers = CIMultiDict()
+
+        return self.append_payload(JsonPayload(obj, headers=headers))
+
+    def append_form(
+        self,
+        obj: Union[Sequence[Tuple[str, str]], Mapping[str, str]],
+        headers: Optional[Mapping[str, str]] = None,
+    ) -> Payload:
+        """Helper to append form urlencoded part."""
+        assert isinstance(obj, (Sequence, Mapping))
+
+        if headers is None:
+            headers = CIMultiDict()
+
+        if isinstance(obj, Mapping):
+            obj = list(obj.items())
+        data = urlencode(obj, doseq=True)
+
+        return self.append_payload(
+            StringPayload(
+                data, headers=headers, content_type="application/x-www-form-urlencoded"
+            )
+        )
+
+    @property
+    def size(self) -> Optional[int]:
+        """Size of the payload."""
+        total = 0
+        for part, encoding, te_encoding in self._parts:
+            if encoding or te_encoding or part.size is None:
+                return None
+
+            total += int(
+                2
+                + len(self._boundary)
+                + 2
+                + part.size  # b'--'+self._boundary+b'\r\n'
+                + len(part._binary_headers)
+                + 2  # b'\r\n'
+            )
+
+        total += 2 + len(self._boundary) + 4  # b'--'+self._boundary+b'--\r\n'
+        return total
+
+    def decode(self, encoding: str = "utf-8", errors: str = "strict") -> str:
+        return "".join(
+            "--"
+            + self.boundary
+            + "\n"
+            + part._binary_headers.decode(encoding, errors)
+            + part.decode()
+            for part, _e, _te in self._parts
+        )
+
+    async def write(self, writer: Any, close_boundary: bool = True) -> None:
+        """Write body."""
+        for part, encoding, te_encoding in self._parts:
+            if self._is_form_data:
+                # https://datatracker.ietf.org/doc/html/rfc7578#section-4.2
+                assert CONTENT_DISPOSITION in part.headers
+                assert "name=" in part.headers[CONTENT_DISPOSITION]
+
+            await writer.write(b"--" + self._boundary + b"\r\n")
+            await writer.write(part._binary_headers)
+
+            if encoding or te_encoding:
+                w = MultipartPayloadWriter(writer)
+                if encoding:
+                    w.enable_compression(encoding)
+                if te_encoding:
+                    w.enable_encoding(te_encoding)
+                await part.write(w)  # type: ignore[arg-type]
+                await w.write_eof()
+            else:
+                await part.write(writer)
+
+            await writer.write(b"\r\n")
+
+        if close_boundary:
+            await writer.write(b"--" + self._boundary + b"--\r\n")
+
+
+class MultipartPayloadWriter:
+    def __init__(self, writer: Any) -> None:
+        self._writer = writer
+        self._encoding: Optional[str] = None
+        self._compress: Optional[ZLibCompressor] = None
+        self._encoding_buffer: Optional[bytearray] = None
+
+    def enable_encoding(self, encoding: str) -> None:
+        if encoding == "base64":
+            self._encoding = encoding
+            self._encoding_buffer = bytearray()
+        elif encoding == "quoted-printable":
+            self._encoding = "quoted-printable"
+
+    def enable_compression(
+        self, encoding: str = "deflate", strategy: int = zlib.Z_DEFAULT_STRATEGY
+    ) -> None:
+        self._compress = ZLibCompressor(
+            encoding=encoding,
+            suppress_deflate_header=True,
+            strategy=strategy,
+        )
+
+    async def write_eof(self) -> None:
+        if self._compress is not None:
+            chunk = self._compress.flush()
+            if chunk:
+                self._compress = None
+                await self.write(chunk)
+
+        if self._encoding == "base64":
+            if self._encoding_buffer:
+                await self._writer.write(base64.b64encode(self._encoding_buffer))
+
+    async def write(self, chunk: bytes) -> None:
+        if self._compress is not None:
+            if chunk:
+                chunk = await self._compress.compress(chunk)
+                if not chunk:
+                    return
+
+        if self._encoding == "base64":
+            buf = self._encoding_buffer
+            assert buf is not None
+            buf.extend(chunk)
+
+            if buf:
+                div, mod = divmod(len(buf), 3)
+                enc_chunk, self._encoding_buffer = (buf[: div * 3], buf[div * 3 :])
+                if enc_chunk:
+                    b64chunk = base64.b64encode(enc_chunk)
+                    await self._writer.write(b64chunk)
+        elif self._encoding == "quoted-printable":
+            await self._writer.write(binascii.b2a_qp(chunk))
+        else:
+            await self._writer.write(chunk)

deepseek/lib/python3.10/site-packages/aiohttp/payload.py

@@ -0,0 +1,519 @@
+import asyncio
+import enum
+import io
+import json
+import mimetypes
+import os
+import sys
+import warnings
+from abc import ABC, abstractmethod
+from itertools import chain
+from typing import (
+    IO,
+    TYPE_CHECKING,
+    Any,
+    Dict,
+    Final,
+    Iterable,
+    Optional,
+    TextIO,
+    Tuple,
+    Type,
+    Union,
+)
+
+from multidict import CIMultiDict
+
+from . import hdrs
+from .abc import AbstractStreamWriter
+from .helpers import (
+    _SENTINEL,
+    content_disposition_header,
+    guess_filename,
+    parse_mimetype,
+    sentinel,
+)
+from .streams import StreamReader
+from .typedefs import JSONEncoder, _CIMultiDict
+
+__all__ = (
+    "PAYLOAD_REGISTRY",
+    "get_payload",
+    "payload_type",
+    "Payload",
+    "BytesPayload",
+    "StringPayload",
+    "IOBasePayload",
+    "BytesIOPayload",
+    "BufferedReaderPayload",
+    "TextIOPayload",
+    "StringIOPayload",
+    "JsonPayload",
+    "AsyncIterablePayload",
+)
+
+TOO_LARGE_BYTES_BODY: Final[int] = 2**20  # 1 MB
+
+if TYPE_CHECKING:
+    from typing import List
+
+
+class LookupError(Exception):
+    pass
+
+
+class Order(str, enum.Enum):
+    normal = "normal"
+    try_first = "try_first"
+    try_last = "try_last"
+
+
+def get_payload(data: Any, *args: Any, **kwargs: Any) -> "Payload":
+    return PAYLOAD_REGISTRY.get(data, *args, **kwargs)
+
+
+def register_payload(
+    factory: Type["Payload"], type: Any, *, order: Order = Order.normal
+) -> None:
+    PAYLOAD_REGISTRY.register(factory, type, order=order)
+
+
+class payload_type:
+    def __init__(self, type: Any, *, order: Order = Order.normal) -> None:
+        self.type = type
+        self.order = order
+
+    def __call__(self, factory: Type["Payload"]) -> Type["Payload"]:
+        register_payload(factory, self.type, order=self.order)
+        return factory
+
+
+PayloadType = Type["Payload"]
+_PayloadRegistryItem = Tuple[PayloadType, Any]
+
+
+class PayloadRegistry:
+    """Payload registry.
+
+    note: we need zope.interface for more efficient adapter search
+    """
+
+    __slots__ = ("_first", "_normal", "_last", "_normal_lookup")
+
+    def __init__(self) -> None:
+        self._first: List[_PayloadRegistryItem] = []
+        self._normal: List[_PayloadRegistryItem] = []
+        self._last: List[_PayloadRegistryItem] = []
+        self._normal_lookup: Dict[Any, PayloadType] = {}
+
+    def get(
+        self,
+        data: Any,
+        *args: Any,
+        _CHAIN: "Type[chain[_PayloadRegistryItem]]" = chain,
+        **kwargs: Any,
+    ) -> "Payload":
+        if self._first:
+            for factory, type_ in self._first:
+                if isinstance(data, type_):
+                    return factory(data, *args, **kwargs)
+        # Try the fast lookup first
+        if lookup_factory := self._normal_lookup.get(type(data)):
+            return lookup_factory(data, *args, **kwargs)
+        # Bail early if its already a Payload
+        if isinstance(data, Payload):
+            return data
+        # Fallback to the slower linear search
+        for factory, type_ in _CHAIN(self._normal, self._last):
+            if isinstance(data, type_):
+                return factory(data, *args, **kwargs)
+        raise LookupError()
+
+    def register(
+        self, factory: PayloadType, type: Any, *, order: Order = Order.normal
+    ) -> None:
+        if order is Order.try_first:
+            self._first.append((factory, type))
+        elif order is Order.normal:
+            self._normal.append((factory, type))
+            if isinstance(type, Iterable):
+                for t in type:
+                    self._normal_lookup[t] = factory
+            else:
+                self._normal_lookup[type] = factory
+        elif order is Order.try_last:
+            self._last.append((factory, type))
+        else:
+            raise ValueError(f"Unsupported order {order!r}")
+
+
+class Payload(ABC):
+
+    _default_content_type: str = "application/octet-stream"
+    _size: Optional[int] = None
+
+    def __init__(
+        self,
+        value: Any,
+        headers: Optional[
+            Union[_CIMultiDict, Dict[str, str], Iterable[Tuple[str, str]]]
+        ] = None,
+        content_type: Union[str, None, _SENTINEL] = sentinel,
+        filename: Optional[str] = None,
+        encoding: Optional[str] = None,
+        **kwargs: Any,
+    ) -> None:
+        self._encoding = encoding
+        self._filename = filename
+        self._headers: _CIMultiDict = CIMultiDict()
+        self._value = value
+        if content_type is not sentinel and content_type is not None:
+            self._headers[hdrs.CONTENT_TYPE] = content_type
+        elif self._filename is not None:
+            if sys.version_info >= (3, 13):
+                guesser = mimetypes.guess_file_type
+            else:
+                guesser = mimetypes.guess_type
+            content_type = guesser(self._filename)[0]
+            if content_type is None:
+                content_type = self._default_content_type
+            self._headers[hdrs.CONTENT_TYPE] = content_type
+        else:
+            self._headers[hdrs.CONTENT_TYPE] = self._default_content_type
+        if headers:
+            self._headers.update(headers)
+
+    @property
+    def size(self) -> Optional[int]:
+        """Size of the payload."""
+        return self._size
+
+    @property
+    def filename(self) -> Optional[str]:
+        """Filename of the payload."""
+        return self._filename
+
+    @property
+    def headers(self) -> _CIMultiDict:
+        """Custom item headers"""
+        return self._headers
+
+    @property
+    def _binary_headers(self) -> bytes:
+        return (
+            "".join([k + ": " + v + "\r\n" for k, v in self.headers.items()]).encode(
+                "utf-8"
+            )
+            + b"\r\n"
+        )
+
+    @property
+    def encoding(self) -> Optional[str]:
+        """Payload encoding"""
+        return self._encoding
+
+    @property
+    def content_type(self) -> str:
+        """Content type"""
+        return self._headers[hdrs.CONTENT_TYPE]
+
+    def set_content_disposition(
+        self,
+        disptype: str,
+        quote_fields: bool = True,
+        _charset: str = "utf-8",
+        **params: Any,
+    ) -> None:
+        """Sets ``Content-Disposition`` header."""
+        self._headers[hdrs.CONTENT_DISPOSITION] = content_disposition_header(
+            disptype, quote_fields=quote_fields, _charset=_charset, **params
+        )
+
+    @abstractmethod
+    def decode(self, encoding: str = "utf-8", errors: str = "strict") -> str:
+        """Return string representation of the value.
+
+        This is named decode() to allow compatibility with bytes objects.
+        """
+
+    @abstractmethod
+    async def write(self, writer: AbstractStreamWriter) -> None:
+        """Write payload.
+
+        writer is an AbstractStreamWriter instance:
+        """
+
+
+class BytesPayload(Payload):
+    _value: bytes
+
+    def __init__(
+        self, value: Union[bytes, bytearray, memoryview], *args: Any, **kwargs: Any
+    ) -> None:
+        if "content_type" not in kwargs:
+            kwargs["content_type"] = "application/octet-stream"
+
+        super().__init__(value, *args, **kwargs)
+
+        if isinstance(value, memoryview):
+            self._size = value.nbytes
+        elif isinstance(value, (bytes, bytearray)):
+            self._size = len(value)
+        else:
+            raise TypeError(f"value argument must be byte-ish, not {type(value)!r}")
+
+        if self._size > TOO_LARGE_BYTES_BODY:
+            kwargs = {"source": self}
+            warnings.warn(
+                "Sending a large body directly with raw bytes might"
+                " lock the event loop. You should probably pass an "
+                "io.BytesIO object instead",
+                ResourceWarning,
+                **kwargs,
+            )
+
+    def decode(self, encoding: str = "utf-8", errors: str = "strict") -> str:
+        return self._value.decode(encoding, errors)
+
+    async def write(self, writer: AbstractStreamWriter) -> None:
+        await writer.write(self._value)
+
+
+class StringPayload(BytesPayload):
+    def __init__(
+        self,
+        value: str,
+        *args: Any,
+        encoding: Optional[str] = None,
+        content_type: Optional[str] = None,
+        **kwargs: Any,
+    ) -> None:
+
+        if encoding is None:
+            if content_type is None:
+                real_encoding = "utf-8"
+                content_type = "text/plain; charset=utf-8"
+            else:
+                mimetype = parse_mimetype(content_type)
+                real_encoding = mimetype.parameters.get("charset", "utf-8")
+        else:
+            if content_type is None:
+                content_type = "text/plain; charset=%s" % encoding
+            real_encoding = encoding
+
+        super().__init__(
+            value.encode(real_encoding),
+            encoding=real_encoding,
+            content_type=content_type,
+            *args,
+            **kwargs,
+        )
+
+
+class StringIOPayload(StringPayload):
+    def __init__(self, value: IO[str], *args: Any, **kwargs: Any) -> None:
+        super().__init__(value.read(), *args, **kwargs)
+
+
+class IOBasePayload(Payload):
+    _value: io.IOBase
+
+    def __init__(
+        self, value: IO[Any], disposition: str = "attachment", *args: Any, **kwargs: Any
+    ) -> None:
+        if "filename" not in kwargs:
+            kwargs["filename"] = guess_filename(value)
+
+        super().__init__(value, *args, **kwargs)
+
+        if self._filename is not None and disposition is not None:
+            if hdrs.CONTENT_DISPOSITION not in self.headers:
+                self.set_content_disposition(disposition, filename=self._filename)
+
+    async def write(self, writer: AbstractStreamWriter) -> None:
+        loop = asyncio.get_event_loop()
+        try:
+            chunk = await loop.run_in_executor(None, self._value.read, 2**16)
+            while chunk:
+                await writer.write(chunk)
+                chunk = await loop.run_in_executor(None, self._value.read, 2**16)
+        finally:
+            await loop.run_in_executor(None, self._value.close)
+
+    def decode(self, encoding: str = "utf-8", errors: str = "strict") -> str:
+        return "".join(r.decode(encoding, errors) for r in self._value.readlines())
+
+
+class TextIOPayload(IOBasePayload):
+    _value: io.TextIOBase
+
+    def __init__(
+        self,
+        value: TextIO,
+        *args: Any,
+        encoding: Optional[str] = None,
+        content_type: Optional[str] = None,
+        **kwargs: Any,
+    ) -> None:
+
+        if encoding is None:
+            if content_type is None:
+                encoding = "utf-8"
+                content_type = "text/plain; charset=utf-8"
+            else:
+                mimetype = parse_mimetype(content_type)
+                encoding = mimetype.parameters.get("charset", "utf-8")
+        else:
+            if content_type is None:
+                content_type = "text/plain; charset=%s" % encoding
+
+        super().__init__(
+            value,
+            content_type=content_type,
+            encoding=encoding,
+            *args,
+            **kwargs,
+        )
+
+    @property
+    def size(self) -> Optional[int]:
+        try:
+            return os.fstat(self._value.fileno()).st_size - self._value.tell()
+        except OSError:
+            return None
+
+    def decode(self, encoding: str = "utf-8", errors: str = "strict") -> str:
+        return self._value.read()
+
+    async def write(self, writer: AbstractStreamWriter) -> None:
+        loop = asyncio.get_event_loop()
+        try:
+            chunk = await loop.run_in_executor(None, self._value.read, 2**16)
+            while chunk:
+                data = (
+                    chunk.encode(encoding=self._encoding)
+                    if self._encoding
+                    else chunk.encode()
+                )
+                await writer.write(data)
+                chunk = await loop.run_in_executor(None, self._value.read, 2**16)
+        finally:
+            await loop.run_in_executor(None, self._value.close)
+
+
+class BytesIOPayload(IOBasePayload):
+    _value: io.BytesIO
+
+    @property
+    def size(self) -> int:
+        position = self._value.tell()
+        end = self._value.seek(0, os.SEEK_END)
+        self._value.seek(position)
+        return end - position
+
+    def decode(self, encoding: str = "utf-8", errors: str = "strict") -> str:
+        return self._value.read().decode(encoding, errors)
+
+
+class BufferedReaderPayload(IOBasePayload):
+    _value: io.BufferedIOBase
+
+    @property
+    def size(self) -> Optional[int]:
+        try:
+            return os.fstat(self._value.fileno()).st_size - self._value.tell()
+        except (OSError, AttributeError):
+            # data.fileno() is not supported, e.g.
+            # io.BufferedReader(io.BytesIO(b'data'))
+            # For some file-like objects (e.g. tarfile), the fileno() attribute may
+            # not exist at all, and will instead raise an AttributeError.
+            return None
+
+    def decode(self, encoding: str = "utf-8", errors: str = "strict") -> str:
+        return self._value.read().decode(encoding, errors)
+
+
+class JsonPayload(BytesPayload):
+    def __init__(
+        self,
+        value: Any,
+        encoding: str = "utf-8",
+        content_type: str = "application/json",
+        dumps: JSONEncoder = json.dumps,
+        *args: Any,
+        **kwargs: Any,
+    ) -> None:
+
+        super().__init__(
+            dumps(value).encode(encoding),
+            content_type=content_type,
+            encoding=encoding,
+            *args,
+            **kwargs,
+        )
+
+
+if TYPE_CHECKING:
+    from typing import AsyncIterable, AsyncIterator
+
+    _AsyncIterator = AsyncIterator[bytes]
+    _AsyncIterable = AsyncIterable[bytes]
+else:
+    from collections.abc import AsyncIterable, AsyncIterator
+
+    _AsyncIterator = AsyncIterator
+    _AsyncIterable = AsyncIterable
+
+
+class AsyncIterablePayload(Payload):
+
+    _iter: Optional[_AsyncIterator] = None
+    _value: _AsyncIterable
+
+    def __init__(self, value: _AsyncIterable, *args: Any, **kwargs: Any) -> None:
+        if not isinstance(value, AsyncIterable):
+            raise TypeError(
+                "value argument must support "
+                "collections.abc.AsyncIterable interface, "
+                "got {!r}".format(type(value))
+            )
+
+        if "content_type" not in kwargs:
+            kwargs["content_type"] = "application/octet-stream"
+
+        super().__init__(value, *args, **kwargs)
+
+        self._iter = value.__aiter__()
+
+    async def write(self, writer: AbstractStreamWriter) -> None:
+        if self._iter:
+            try:
+                # iter is not None check prevents rare cases
+                # when the case iterable is used twice
+                while True:
+                    chunk = await self._iter.__anext__()
+                    await writer.write(chunk)
+            except StopAsyncIteration:
+                self._iter = None
+
+    def decode(self, encoding: str = "utf-8", errors: str = "strict") -> str:
+        raise TypeError("Unable to decode.")
+
+
+class StreamReaderPayload(AsyncIterablePayload):
+    def __init__(self, value: StreamReader, *args: Any, **kwargs: Any) -> None:
+        super().__init__(value.iter_any(), *args, **kwargs)
+
+
+PAYLOAD_REGISTRY = PayloadRegistry()
+PAYLOAD_REGISTRY.register(BytesPayload, (bytes, bytearray, memoryview))
+PAYLOAD_REGISTRY.register(StringPayload, str)
+PAYLOAD_REGISTRY.register(StringIOPayload, io.StringIO)
+PAYLOAD_REGISTRY.register(TextIOPayload, io.TextIOBase)
+PAYLOAD_REGISTRY.register(BytesIOPayload, io.BytesIO)
+PAYLOAD_REGISTRY.register(BufferedReaderPayload, (io.BufferedReader, io.BufferedRandom))
+PAYLOAD_REGISTRY.register(IOBasePayload, io.IOBase)
+PAYLOAD_REGISTRY.register(StreamReaderPayload, StreamReader)
+# try_last for giving a chance to more specialized async interables like
+# multidict.BodyPartReaderPayload override the default
+PAYLOAD_REGISTRY.register(AsyncIterablePayload, AsyncIterable, order=Order.try_last)

deepseek/lib/python3.10/site-packages/aiohttp/payload_streamer.py

@@ -0,0 +1,78 @@
+"""
+Payload implementation for coroutines as data provider.
+
+As a simple case, you can upload data from file::
+
+   @aiohttp.streamer
+   async def file_sender(writer, file_name=None):
+      with open(file_name, 'rb') as f:
+          chunk = f.read(2**16)
+          while chunk:
+              await writer.write(chunk)
+
+              chunk = f.read(2**16)
+
+Then you can use `file_sender` like this:
+
+    async with session.post('http://httpbin.org/post',
+                            data=file_sender(file_name='huge_file')) as resp:
+        print(await resp.text())
+
+..note:: Coroutine must accept `writer` as first argument
+
+"""
+
+import types
+import warnings
+from typing import Any, Awaitable, Callable, Dict, Tuple
+
+from .abc import AbstractStreamWriter
+from .payload import Payload, payload_type
+
+__all__ = ("streamer",)
+
+
+class _stream_wrapper:
+    def __init__(
+        self,
+        coro: Callable[..., Awaitable[None]],
+        args: Tuple[Any, ...],
+        kwargs: Dict[str, Any],
+    ) -> None:
+        self.coro = types.coroutine(coro)
+        self.args = args
+        self.kwargs = kwargs
+
+    async def __call__(self, writer: AbstractStreamWriter) -> None:
+        await self.coro(writer, *self.args, **self.kwargs)
+
+
+class streamer:
+    def __init__(self, coro: Callable[..., Awaitable[None]]) -> None:
+        warnings.warn(
+            "@streamer is deprecated, use async generators instead",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        self.coro = coro
+
+    def __call__(self, *args: Any, **kwargs: Any) -> _stream_wrapper:
+        return _stream_wrapper(self.coro, args, kwargs)
+
+
+@payload_type(_stream_wrapper)
+class StreamWrapperPayload(Payload):
+    async def write(self, writer: AbstractStreamWriter) -> None:
+        await self._value(writer)
+
+    def decode(self, encoding: str = "utf-8", errors: str = "strict") -> str:
+        raise TypeError("Unable to decode.")
+
+
+@payload_type(streamer)
+class StreamPayload(StreamWrapperPayload):
+    def __init__(self, value: Any, *args: Any, **kwargs: Any) -> None:
+        super().__init__(value(), *args, **kwargs)
+
+    async def write(self, writer: AbstractStreamWriter) -> None:
+        await self._value(writer)

deepseek/lib/python3.10/site-packages/aiohttp/py.typed

@@ -0,0 +1 @@
+Marker

deepseek/lib/python3.10/site-packages/aiohttp/pytest_plugin.py

@@ -0,0 +1,436 @@
+import asyncio
+import contextlib
+import inspect
+import warnings
+from typing import (
+    Any,
+    Awaitable,
+    Callable,
+    Dict,
+    Iterator,
+    Optional,
+    Protocol,
+    Type,
+    Union,
+    overload,
+)
+
+import pytest
+
+from .test_utils import (
+    BaseTestServer,
+    RawTestServer,
+    TestClient,
+    TestServer,
+    loop_context,
+    setup_test_loop,
+    teardown_test_loop,
+    unused_port as _unused_port,
+)
+from .web import Application, BaseRequest, Request
+from .web_protocol import _RequestHandler
+
+try:
+    import uvloop
+except ImportError:  # pragma: no cover
+    uvloop = None  # type: ignore[assignment]
+
+
+class AiohttpClient(Protocol):
+    @overload
+    async def __call__(
+        self,
+        __param: Application,
+        *,
+        server_kwargs: Optional[Dict[str, Any]] = None,
+        **kwargs: Any,
+    ) -> TestClient[Request, Application]: ...
+    @overload
+    async def __call__(
+        self,
+        __param: BaseTestServer,
+        *,
+        server_kwargs: Optional[Dict[str, Any]] = None,
+        **kwargs: Any,
+    ) -> TestClient[BaseRequest, None]: ...
+
+
+class AiohttpServer(Protocol):
+    def __call__(
+        self, app: Application, *, port: Optional[int] = None, **kwargs: Any
+    ) -> Awaitable[TestServer]: ...
+
+
+class AiohttpRawServer(Protocol):
+    def __call__(
+        self, handler: _RequestHandler, *, port: Optional[int] = None, **kwargs: Any
+    ) -> Awaitable[RawTestServer]: ...
+
+
+def pytest_addoption(parser):  # type: ignore[no-untyped-def]
+    parser.addoption(
+        "--aiohttp-fast",
+        action="store_true",
+        default=False,
+        help="run tests faster by disabling extra checks",
+    )
+    parser.addoption(
+        "--aiohttp-loop",
+        action="store",
+        default="pyloop",
+        help="run tests with specific loop: pyloop, uvloop or all",
+    )
+    parser.addoption(
+        "--aiohttp-enable-loop-debug",
+        action="store_true",
+        default=False,
+        help="enable event loop debug mode",
+    )
+
+
+def pytest_fixture_setup(fixturedef):  # type: ignore[no-untyped-def]
+    """Set up pytest fixture.
+
+    Allow fixtures to be coroutines. Run coroutine fixtures in an event loop.
+    """
+    func = fixturedef.func
+
+    if inspect.isasyncgenfunction(func):
+        # async generator fixture
+        is_async_gen = True
+    elif asyncio.iscoroutinefunction(func):
+        # regular async fixture
+        is_async_gen = False
+    else:
+        # not an async fixture, nothing to do
+        return
+
+    strip_request = False
+    if "request" not in fixturedef.argnames:
+        fixturedef.argnames += ("request",)
+        strip_request = True
+
+    def wrapper(*args, **kwargs):  # type: ignore[no-untyped-def]
+        request = kwargs["request"]
+        if strip_request:
+            del kwargs["request"]
+
+        # if neither the fixture nor the test use the 'loop' fixture,
+        # 'getfixturevalue' will fail because the test is not parameterized
+        # (this can be removed someday if 'loop' is no longer parameterized)
+        if "loop" not in request.fixturenames:
+            raise Exception(
+                "Asynchronous fixtures must depend on the 'loop' fixture or "
+                "be used in tests depending from it."
+            )
+
+        _loop = request.getfixturevalue("loop")
+
+        if is_async_gen:
+            # for async generators, we need to advance the generator once,
+            # then advance it again in a finalizer
+            gen = func(*args, **kwargs)
+
+            def finalizer():  # type: ignore[no-untyped-def]
+                try:
+                    return _loop.run_until_complete(gen.__anext__())
+                except StopAsyncIteration:
+                    pass
+
+            request.addfinalizer(finalizer)
+            return _loop.run_until_complete(gen.__anext__())
+        else:
+            return _loop.run_until_complete(func(*args, **kwargs))
+
+    fixturedef.func = wrapper
+
+
+@pytest.fixture
+def fast(request):  # type: ignore[no-untyped-def]
+    """--fast config option"""
+    return request.config.getoption("--aiohttp-fast")
+
+
+@pytest.fixture
+def loop_debug(request):  # type: ignore[no-untyped-def]
+    """--enable-loop-debug config option"""
+    return request.config.getoption("--aiohttp-enable-loop-debug")
+
+
+@contextlib.contextmanager
+def _runtime_warning_context():  # type: ignore[no-untyped-def]
+    """Context manager which checks for RuntimeWarnings.
+
+    This exists specifically to
+    avoid "coroutine 'X' was never awaited" warnings being missed.
+
+    If RuntimeWarnings occur in the context a RuntimeError is raised.
+    """
+    with warnings.catch_warnings(record=True) as _warnings:
+        yield
+        rw = [
+            "{w.filename}:{w.lineno}:{w.message}".format(w=w)
+            for w in _warnings
+            if w.category == RuntimeWarning
+        ]
+        if rw:
+            raise RuntimeError(
+                "{} Runtime Warning{},\n{}".format(
+                    len(rw), "" if len(rw) == 1 else "s", "\n".join(rw)
+                )
+            )
+
+
+@contextlib.contextmanager
+def _passthrough_loop_context(loop, fast=False):  # type: ignore[no-untyped-def]
+    """Passthrough loop context.
+
+    Sets up and tears down a loop unless one is passed in via the loop
+    argument when it's passed straight through.
+    """
+    if loop:
+        # loop already exists, pass it straight through
+        yield loop
+    else:
+        # this shadows loop_context's standard behavior
+        loop = setup_test_loop()
+        yield loop
+        teardown_test_loop(loop, fast=fast)
+
+
+def pytest_pycollect_makeitem(collector, name, obj):  # type: ignore[no-untyped-def]
+    """Fix pytest collecting for coroutines."""
+    if collector.funcnamefilter(name) and asyncio.iscoroutinefunction(obj):
+        return list(collector._genfunctions(name, obj))
+
+
+def pytest_pyfunc_call(pyfuncitem):  # type: ignore[no-untyped-def]
+    """Run coroutines in an event loop instead of a normal function call."""
+    fast = pyfuncitem.config.getoption("--aiohttp-fast")
+    if asyncio.iscoroutinefunction(pyfuncitem.function):
+        existing_loop = pyfuncitem.funcargs.get(
+            "proactor_loop"
+        ) or pyfuncitem.funcargs.get("loop", None)
+        with _runtime_warning_context():
+            with _passthrough_loop_context(existing_loop, fast=fast) as _loop:
+                testargs = {
+                    arg: pyfuncitem.funcargs[arg]
+                    for arg in pyfuncitem._fixtureinfo.argnames
+                }
+                _loop.run_until_complete(pyfuncitem.obj(**testargs))
+
+        return True
+
+
+def pytest_generate_tests(metafunc):  # type: ignore[no-untyped-def]
+    if "loop_factory" not in metafunc.fixturenames:
+        return
+
+    loops = metafunc.config.option.aiohttp_loop
+    avail_factories: Dict[str, Type[asyncio.AbstractEventLoopPolicy]]
+    avail_factories = {"pyloop": asyncio.DefaultEventLoopPolicy}
+
+    if uvloop is not None:  # pragma: no cover
+        avail_factories["uvloop"] = uvloop.EventLoopPolicy
+
+    if loops == "all":
+        loops = "pyloop,uvloop?"
+
+    factories = {}  # type: ignore[var-annotated]
+    for name in loops.split(","):
+        required = not name.endswith("?")
+        name = name.strip(" ?")
+        if name not in avail_factories:  # pragma: no cover
+            if required:
+                raise ValueError(
+                    "Unknown loop '%s', available loops: %s"
+                    % (name, list(factories.keys()))
+                )
+            else:
+                continue
+        factories[name] = avail_factories[name]
+    metafunc.parametrize(
+        "loop_factory", list(factories.values()), ids=list(factories.keys())
+    )
+
+
+@pytest.fixture
+def loop(loop_factory, fast, loop_debug):  # type: ignore[no-untyped-def]
+    """Return an instance of the event loop."""
+    policy = loop_factory()
+    asyncio.set_event_loop_policy(policy)
+    with loop_context(fast=fast) as _loop:
+        if loop_debug:
+            _loop.set_debug(True)  # pragma: no cover
+        asyncio.set_event_loop(_loop)
+        yield _loop
+
+
+@pytest.fixture
+def proactor_loop():  # type: ignore[no-untyped-def]
+    policy = asyncio.WindowsProactorEventLoopPolicy()  # type: ignore[attr-defined]
+    asyncio.set_event_loop_policy(policy)
+
+    with loop_context(policy.new_event_loop) as _loop:
+        asyncio.set_event_loop(_loop)
+        yield _loop
+
+
+@pytest.fixture
+def unused_port(aiohttp_unused_port: Callable[[], int]) -> Callable[[], int]:
+    warnings.warn(
+        "Deprecated, use aiohttp_unused_port fixture instead",
+        DeprecationWarning,
+        stacklevel=2,
+    )
+    return aiohttp_unused_port
+
+
+@pytest.fixture
+def aiohttp_unused_port() -> Callable[[], int]:
+    """Return a port that is unused on the current host."""
+    return _unused_port
+
+
+@pytest.fixture
+def aiohttp_server(loop: asyncio.AbstractEventLoop) -> Iterator[AiohttpServer]:
+    """Factory to create a TestServer instance, given an app.
+
+    aiohttp_server(app, **kwargs)
+    """
+    servers = []
+
+    async def go(
+        app: Application, *, port: Optional[int] = None, **kwargs: Any
+    ) -> TestServer:
+        server = TestServer(app, port=port)
+        await server.start_server(loop=loop, **kwargs)
+        servers.append(server)
+        return server
+
+    yield go
+
+    async def finalize() -> None:
+        while servers:
+            await servers.pop().close()
+
+    loop.run_until_complete(finalize())
+
+
+@pytest.fixture
+def test_server(aiohttp_server):  # type: ignore[no-untyped-def]  # pragma: no cover
+    warnings.warn(
+        "Deprecated, use aiohttp_server fixture instead",
+        DeprecationWarning,
+        stacklevel=2,
+    )
+    return aiohttp_server
+
+
+@pytest.fixture
+def aiohttp_raw_server(loop: asyncio.AbstractEventLoop) -> Iterator[AiohttpRawServer]:
+    """Factory to create a RawTestServer instance, given a web handler.
+
+    aiohttp_raw_server(handler, **kwargs)
+    """
+    servers = []
+
+    async def go(
+        handler: _RequestHandler, *, port: Optional[int] = None, **kwargs: Any
+    ) -> RawTestServer:
+        server = RawTestServer(handler, port=port)
+        await server.start_server(loop=loop, **kwargs)
+        servers.append(server)
+        return server
+
+    yield go
+
+    async def finalize() -> None:
+        while servers:
+            await servers.pop().close()
+
+    loop.run_until_complete(finalize())
+
+
+@pytest.fixture
+def raw_test_server(  # type: ignore[no-untyped-def]  # pragma: no cover
+    aiohttp_raw_server,
+):
+    warnings.warn(
+        "Deprecated, use aiohttp_raw_server fixture instead",
+        DeprecationWarning,
+        stacklevel=2,
+    )
+    return aiohttp_raw_server
+
+
+@pytest.fixture
+def aiohttp_client(loop: asyncio.AbstractEventLoop) -> Iterator[AiohttpClient]:
+    """Factory to create a TestClient instance.
+
+    aiohttp_client(app, **kwargs)
+    aiohttp_client(server, **kwargs)
+    aiohttp_client(raw_server, **kwargs)
+    """
+    clients = []
+
+    @overload
+    async def go(
+        __param: Application,
+        *,
+        server_kwargs: Optional[Dict[str, Any]] = None,
+        **kwargs: Any,
+    ) -> TestClient[Request, Application]: ...
+
+    @overload
+    async def go(
+        __param: BaseTestServer,
+        *,
+        server_kwargs: Optional[Dict[str, Any]] = None,
+        **kwargs: Any,
+    ) -> TestClient[BaseRequest, None]: ...
+
+    async def go(
+        __param: Union[Application, BaseTestServer],
+        *args: Any,
+        server_kwargs: Optional[Dict[str, Any]] = None,
+        **kwargs: Any,
+    ) -> TestClient[Any, Any]:
+        if isinstance(__param, Callable) and not isinstance(  # type: ignore[arg-type]
+            __param, (Application, BaseTestServer)
+        ):
+            __param = __param(loop, *args, **kwargs)
+            kwargs = {}
+        else:
+            assert not args, "args should be empty"
+
+        if isinstance(__param, Application):
+            server_kwargs = server_kwargs or {}
+            server = TestServer(__param, loop=loop, **server_kwargs)
+            client = TestClient(server, loop=loop, **kwargs)
+        elif isinstance(__param, BaseTestServer):
+            client = TestClient(__param, loop=loop, **kwargs)
+        else:
+            raise ValueError("Unknown argument type: %r" % type(__param))
+
+        await client.start_server()
+        clients.append(client)
+        return client
+
+    yield go
+
+    async def finalize() -> None:
+        while clients:
+            await clients.pop().close()
+
+    loop.run_until_complete(finalize())
+
+
+@pytest.fixture
+def test_client(aiohttp_client):  # type: ignore[no-untyped-def]  # pragma: no cover
+    warnings.warn(
+        "Deprecated, use aiohttp_client fixture instead",
+        DeprecationWarning,
+        stacklevel=2,
+    )
+    return aiohttp_client

deepseek/lib/python3.10/site-packages/aiohttp/streams.py

@@ -0,0 +1,723 @@
+import asyncio
+import collections
+import warnings
+from typing import (
+    Awaitable,
+    Callable,
+    Deque,
+    Final,
+    Generic,
+    List,
+    Optional,
+    Tuple,
+    TypeVar,
+)
+
+from .base_protocol import BaseProtocol
+from .helpers import (
+    _EXC_SENTINEL,
+    BaseTimerContext,
+    TimerNoop,
+    set_exception,
+    set_result,
+)
+from .log import internal_logger
+
+__all__ = (
+    "EMPTY_PAYLOAD",
+    "EofStream",
+    "StreamReader",
+    "DataQueue",
+)
+
+_T = TypeVar("_T")
+
+
+class EofStream(Exception):
+    """eof stream indication."""
+
+
+class AsyncStreamIterator(Generic[_T]):
+
+    __slots__ = ("read_func",)
+
+    def __init__(self, read_func: Callable[[], Awaitable[_T]]) -> None:
+        self.read_func = read_func
+
+    def __aiter__(self) -> "AsyncStreamIterator[_T]":
+        return self
+
+    async def __anext__(self) -> _T:
+        try:
+            rv = await self.read_func()
+        except EofStream:
+            raise StopAsyncIteration
+        if rv == b"":
+            raise StopAsyncIteration
+        return rv
+
+
+class ChunkTupleAsyncStreamIterator:
+
+    __slots__ = ("_stream",)
+
+    def __init__(self, stream: "StreamReader") -> None:
+        self._stream = stream
+
+    def __aiter__(self) -> "ChunkTupleAsyncStreamIterator":
+        return self
+
+    async def __anext__(self) -> Tuple[bytes, bool]:
+        rv = await self._stream.readchunk()
+        if rv == (b"", False):
+            raise StopAsyncIteration
+        return rv
+
+
+class AsyncStreamReaderMixin:
+
+    __slots__ = ()
+
+    def __aiter__(self) -> AsyncStreamIterator[bytes]:
+        return AsyncStreamIterator(self.readline)  # type: ignore[attr-defined]
+
+    def iter_chunked(self, n: int) -> AsyncStreamIterator[bytes]:
+        """Returns an asynchronous iterator that yields chunks of size n."""
+        return AsyncStreamIterator(lambda: self.read(n))  # type: ignore[attr-defined]
+
+    def iter_any(self) -> AsyncStreamIterator[bytes]:
+        """Yield all available data as soon as it is received."""
+        return AsyncStreamIterator(self.readany)  # type: ignore[attr-defined]
+
+    def iter_chunks(self) -> ChunkTupleAsyncStreamIterator:
+        """Yield chunks of data as they are received by the server.
+
+        The yielded objects are tuples
+        of (bytes, bool) as returned by the StreamReader.readchunk method.
+        """
+        return ChunkTupleAsyncStreamIterator(self)  # type: ignore[arg-type]
+
+
+class StreamReader(AsyncStreamReaderMixin):
+    """An enhancement of asyncio.StreamReader.
+
+    Supports asynchronous iteration by line, chunk or as available::
+
+        async for line in reader:
+            ...
+        async for chunk in reader.iter_chunked(1024):
+            ...
+        async for slice in reader.iter_any():
+            ...
+
+    """
+
+    __slots__ = (
+        "_protocol",
+        "_low_water",
+        "_high_water",
+        "_loop",
+        "_size",
+        "_cursor",
+        "_http_chunk_splits",
+        "_buffer",
+        "_buffer_offset",
+        "_eof",
+        "_waiter",
+        "_eof_waiter",
+        "_exception",
+        "_timer",
+        "_eof_callbacks",
+        "_eof_counter",
+        "total_bytes",
+    )
+
+    def __init__(
+        self,
+        protocol: BaseProtocol,
+        limit: int,
+        *,
+        timer: Optional[BaseTimerContext] = None,
+        loop: Optional[asyncio.AbstractEventLoop] = None,
+    ) -> None:
+        self._protocol = protocol
+        self._low_water = limit
+        self._high_water = limit * 2
+        if loop is None:
+            loop = asyncio.get_event_loop()
+        self._loop = loop
+        self._size = 0
+        self._cursor = 0
+        self._http_chunk_splits: Optional[List[int]] = None
+        self._buffer: Deque[bytes] = collections.deque()
+        self._buffer_offset = 0
+        self._eof = False
+        self._waiter: Optional[asyncio.Future[None]] = None
+        self._eof_waiter: Optional[asyncio.Future[None]] = None
+        self._exception: Optional[BaseException] = None
+        self._timer = TimerNoop() if timer is None else timer
+        self._eof_callbacks: List[Callable[[], None]] = []
+        self._eof_counter = 0
+        self.total_bytes = 0
+
+    def __repr__(self) -> str:
+        info = [self.__class__.__name__]
+        if self._size:
+            info.append("%d bytes" % self._size)
+        if self._eof:
+            info.append("eof")
+        if self._low_water != 2**16:  # default limit
+            info.append("low=%d high=%d" % (self._low_water, self._high_water))
+        if self._waiter:
+            info.append("w=%r" % self._waiter)
+        if self._exception:
+            info.append("e=%r" % self._exception)
+        return "<%s>" % " ".join(info)
+
+    def get_read_buffer_limits(self) -> Tuple[int, int]:
+        return (self._low_water, self._high_water)
+
+    def exception(self) -> Optional[BaseException]:
+        return self._exception
+
+    def set_exception(
+        self,
+        exc: BaseException,
+        exc_cause: BaseException = _EXC_SENTINEL,
+    ) -> None:
+        self._exception = exc
+        self._eof_callbacks.clear()
+
+        waiter = self._waiter
+        if waiter is not None:
+            self._waiter = None
+            set_exception(waiter, exc, exc_cause)
+
+        waiter = self._eof_waiter
+        if waiter is not None:
+            self._eof_waiter = None
+            set_exception(waiter, exc, exc_cause)
+
+    def on_eof(self, callback: Callable[[], None]) -> None:
+        if self._eof:
+            try:
+                callback()
+            except Exception:
+                internal_logger.exception("Exception in eof callback")
+        else:
+            self._eof_callbacks.append(callback)
+
+    def feed_eof(self) -> None:
+        self._eof = True
+
+        waiter = self._waiter
+        if waiter is not None:
+            self._waiter = None
+            set_result(waiter, None)
+
+        waiter = self._eof_waiter
+        if waiter is not None:
+            self._eof_waiter = None
+            set_result(waiter, None)
+
+        for cb in self._eof_callbacks:
+            try:
+                cb()
+            except Exception:
+                internal_logger.exception("Exception in eof callback")
+
+        self._eof_callbacks.clear()
+
+    def is_eof(self) -> bool:
+        """Return True if  'feed_eof' was called."""
+        return self._eof
+
+    def at_eof(self) -> bool:
+        """Return True if the buffer is empty and 'feed_eof' was called."""
+        return self._eof and not self._buffer
+
+    async def wait_eof(self) -> None:
+        if self._eof:
+            return
+
+        assert self._eof_waiter is None
+        self._eof_waiter = self._loop.create_future()
+        try:
+            await self._eof_waiter
+        finally:
+            self._eof_waiter = None
+
+    def unread_data(self, data: bytes) -> None:
+        """rollback reading some data from stream, inserting it to buffer head."""
+        warnings.warn(
+            "unread_data() is deprecated "
+            "and will be removed in future releases (#3260)",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        if not data:
+            return
+
+        if self._buffer_offset:
+            self._buffer[0] = self._buffer[0][self._buffer_offset :]
+            self._buffer_offset = 0
+        self._size += len(data)
+        self._cursor -= len(data)
+        self._buffer.appendleft(data)
+        self._eof_counter = 0
+
+    # TODO: size is ignored, remove the param later
+    def feed_data(self, data: bytes, size: int = 0) -> None:
+        assert not self._eof, "feed_data after feed_eof"
+
+        if not data:
+            return
+
+        data_len = len(data)
+        self._size += data_len
+        self._buffer.append(data)
+        self.total_bytes += data_len
+
+        waiter = self._waiter
+        if waiter is not None:
+            self._waiter = None
+            set_result(waiter, None)
+
+        if self._size > self._high_water and not self._protocol._reading_paused:
+            self._protocol.pause_reading()
+
+    def begin_http_chunk_receiving(self) -> None:
+        if self._http_chunk_splits is None:
+            if self.total_bytes:
+                raise RuntimeError(
+                    "Called begin_http_chunk_receiving when some data was already fed"
+                )
+            self._http_chunk_splits = []
+
+    def end_http_chunk_receiving(self) -> None:
+        if self._http_chunk_splits is None:
+            raise RuntimeError(
+                "Called end_chunk_receiving without calling "
+                "begin_chunk_receiving first"
+            )
+
+        # self._http_chunk_splits contains logical byte offsets from start of
+        # the body transfer. Each offset is the offset of the end of a chunk.
+        # "Logical" means bytes, accessible for a user.
+        # If no chunks containing logical data were received, current position
+        # is difinitely zero.
+        pos = self._http_chunk_splits[-1] if self._http_chunk_splits else 0
+
+        if self.total_bytes == pos:
+            # We should not add empty chunks here. So we check for that.
+            # Note, when chunked + gzip is used, we can receive a chunk
+            # of compressed data, but that data may not be enough for gzip FSM
+            # to yield any uncompressed data. That's why current position may
+            # not change after receiving a chunk.
+            return
+
+        self._http_chunk_splits.append(self.total_bytes)
+
+        # wake up readchunk when end of http chunk received
+        waiter = self._waiter
+        if waiter is not None:
+            self._waiter = None
+            set_result(waiter, None)
+
+    async def _wait(self, func_name: str) -> None:
+        if not self._protocol.connected:
+            raise RuntimeError("Connection closed.")
+
+        # StreamReader uses a future to link the protocol feed_data() method
+        # to a read coroutine. Running two read coroutines at the same time
+        # would have an unexpected behaviour. It would not possible to know
+        # which coroutine would get the next data.
+        if self._waiter is not None:
+            raise RuntimeError(
+                "%s() called while another coroutine is "
+                "already waiting for incoming data" % func_name
+            )
+
+        waiter = self._waiter = self._loop.create_future()
+        try:
+            with self._timer:
+                await waiter
+        finally:
+            self._waiter = None
+
+    async def readline(self) -> bytes:
+        return await self.readuntil()
+
+    async def readuntil(self, separator: bytes = b"\n") -> bytes:
+        seplen = len(separator)
+        if seplen == 0:
+            raise ValueError("Separator should be at least one-byte string")
+
+        if self._exception is not None:
+            raise self._exception
+
+        chunk = b""
+        chunk_size = 0
+        not_enough = True
+
+        while not_enough:
+            while self._buffer and not_enough:
+                offset = self._buffer_offset
+                ichar = self._buffer[0].find(separator, offset) + 1
+                # Read from current offset to found separator or to the end.
+                data = self._read_nowait_chunk(
+                    ichar - offset + seplen - 1 if ichar else -1
+                )
+                chunk += data
+                chunk_size += len(data)
+                if ichar:
+                    not_enough = False
+
+                if chunk_size > self._high_water:
+                    raise ValueError("Chunk too big")
+
+            if self._eof:
+                break
+
+            if not_enough:
+                await self._wait("readuntil")
+
+        return chunk
+
+    async def read(self, n: int = -1) -> bytes:
+        if self._exception is not None:
+            raise self._exception
+
+        # migration problem; with DataQueue you have to catch
+        # EofStream exception, so common way is to run payload.read() inside
+        # infinite loop. what can cause real infinite loop with StreamReader
+        # lets keep this code one major release.
+        if __debug__:
+            if self._eof and not self._buffer:
+                self._eof_counter = getattr(self, "_eof_counter", 0) + 1
+                if self._eof_counter > 5:
+                    internal_logger.warning(
+                        "Multiple access to StreamReader in eof state, "
+                        "might be infinite loop.",
+                        stack_info=True,
+                    )
+
+        if not n:
+            return b""
+
+        if n < 0:
+            # This used to just loop creating a new waiter hoping to
+            # collect everything in self._buffer, but that would
+            # deadlock if the subprocess sends more than self.limit
+            # bytes.  So just call self.readany() until EOF.
+            blocks = []
+            while True:
+                block = await self.readany()
+                if not block:
+                    break
+                blocks.append(block)
+            return b"".join(blocks)
+
+        # TODO: should be `if` instead of `while`
+        # because waiter maybe triggered on chunk end,
+        # without feeding any data
+        while not self._buffer and not self._eof:
+            await self._wait("read")
+
+        return self._read_nowait(n)
+
+    async def readany(self) -> bytes:
+        if self._exception is not None:
+            raise self._exception
+
+        # TODO: should be `if` instead of `while`
+        # because waiter maybe triggered on chunk end,
+        # without feeding any data
+        while not self._buffer and not self._eof:
+            await self._wait("readany")
+
+        return self._read_nowait(-1)
+
+    async def readchunk(self) -> Tuple[bytes, bool]:
+        """Returns a tuple of (data, end_of_http_chunk).
+
+        When chunked transfer
+        encoding is used, end_of_http_chunk is a boolean indicating if the end
+        of the data corresponds to the end of a HTTP chunk , otherwise it is
+        always False.
+        """
+        while True:
+            if self._exception is not None:
+                raise self._exception
+
+            while self._http_chunk_splits:
+                pos = self._http_chunk_splits.pop(0)
+                if pos == self._cursor:
+                    return (b"", True)
+                if pos > self._cursor:
+                    return (self._read_nowait(pos - self._cursor), True)
+                internal_logger.warning(
+                    "Skipping HTTP chunk end due to data "
+                    "consumption beyond chunk boundary"
+                )
+
+            if self._buffer:
+                return (self._read_nowait_chunk(-1), False)
+                # return (self._read_nowait(-1), False)
+
+            if self._eof:
+                # Special case for signifying EOF.
+                # (b'', True) is not a final return value actually.
+                return (b"", False)
+
+            await self._wait("readchunk")
+
+    async def readexactly(self, n: int) -> bytes:
+        if self._exception is not None:
+            raise self._exception
+
+        blocks: List[bytes] = []
+        while n > 0:
+            block = await self.read(n)
+            if not block:
+                partial = b"".join(blocks)
+                raise asyncio.IncompleteReadError(partial, len(partial) + n)
+            blocks.append(block)
+            n -= len(block)
+
+        return b"".join(blocks)
+
+    def read_nowait(self, n: int = -1) -> bytes:
+        # default was changed to be consistent with .read(-1)
+        #
+        # I believe the most users don't know about the method and
+        # they are not affected.
+        if self._exception is not None:
+            raise self._exception
+
+        if self._waiter and not self._waiter.done():
+            raise RuntimeError(
+                "Called while some coroutine is waiting for incoming data."
+            )
+
+        return self._read_nowait(n)
+
+    def _read_nowait_chunk(self, n: int) -> bytes:
+        first_buffer = self._buffer[0]
+        offset = self._buffer_offset
+        if n != -1 and len(first_buffer) - offset > n:
+            data = first_buffer[offset : offset + n]
+            self._buffer_offset += n
+
+        elif offset:
+            self._buffer.popleft()
+            data = first_buffer[offset:]
+            self._buffer_offset = 0
+
+        else:
+            data = self._buffer.popleft()
+
+        data_len = len(data)
+        self._size -= data_len
+        self._cursor += data_len
+
+        chunk_splits = self._http_chunk_splits
+        # Prevent memory leak: drop useless chunk splits
+        while chunk_splits and chunk_splits[0] < self._cursor:
+            chunk_splits.pop(0)
+
+        if self._size < self._low_water and self._protocol._reading_paused:
+            self._protocol.resume_reading()
+        return data
+
+    def _read_nowait(self, n: int) -> bytes:
+        """Read not more than n bytes, or whole buffer if n == -1"""
+        self._timer.assert_timeout()
+
+        chunks = []
+        while self._buffer:
+            chunk = self._read_nowait_chunk(n)
+            chunks.append(chunk)
+            if n != -1:
+                n -= len(chunk)
+                if n == 0:
+                    break
+
+        return b"".join(chunks) if chunks else b""
+
+
+class EmptyStreamReader(StreamReader):  # lgtm [py/missing-call-to-init]
+
+    __slots__ = ("_read_eof_chunk",)
+
+    def __init__(self) -> None:
+        self._read_eof_chunk = False
+
+    def __repr__(self) -> str:
+        return "<%s>" % self.__class__.__name__
+
+    def exception(self) -> Optional[BaseException]:
+        return None
+
+    def set_exception(
+        self,
+        exc: BaseException,
+        exc_cause: BaseException = _EXC_SENTINEL,
+    ) -> None:
+        pass
+
+    def on_eof(self, callback: Callable[[], None]) -> None:
+        try:
+            callback()
+        except Exception:
+            internal_logger.exception("Exception in eof callback")
+
+    def feed_eof(self) -> None:
+        pass
+
+    def is_eof(self) -> bool:
+        return True
+
+    def at_eof(self) -> bool:
+        return True
+
+    async def wait_eof(self) -> None:
+        return
+
+    def feed_data(self, data: bytes, n: int = 0) -> None:
+        pass
+
+    async def readline(self) -> bytes:
+        return b""
+
+    async def read(self, n: int = -1) -> bytes:
+        return b""
+
+    # TODO add async def readuntil
+
+    async def readany(self) -> bytes:
+        return b""
+
+    async def readchunk(self) -> Tuple[bytes, bool]:
+        if not self._read_eof_chunk:
+            self._read_eof_chunk = True
+            return (b"", False)
+
+        return (b"", True)
+
+    async def readexactly(self, n: int) -> bytes:
+        raise asyncio.IncompleteReadError(b"", n)
+
+    def read_nowait(self, n: int = -1) -> bytes:
+        return b""
+
+
+EMPTY_PAYLOAD: Final[StreamReader] = EmptyStreamReader()
+
+
+class DataQueue(Generic[_T]):
+    """DataQueue is a general-purpose blocking queue with one reader."""
+
+    def __init__(self, loop: asyncio.AbstractEventLoop) -> None:
+        self._loop = loop
+        self._eof = False
+        self._waiter: Optional[asyncio.Future[None]] = None
+        self._exception: Optional[BaseException] = None
+        self._buffer: Deque[Tuple[_T, int]] = collections.deque()
+
+    def __len__(self) -> int:
+        return len(self._buffer)
+
+    def is_eof(self) -> bool:
+        return self._eof
+
+    def at_eof(self) -> bool:
+        return self._eof and not self._buffer
+
+    def exception(self) -> Optional[BaseException]:
+        return self._exception
+
+    def set_exception(
+        self,
+        exc: BaseException,
+        exc_cause: BaseException = _EXC_SENTINEL,
+    ) -> None:
+        self._eof = True
+        self._exception = exc
+        if (waiter := self._waiter) is not None:
+            self._waiter = None
+            set_exception(waiter, exc, exc_cause)
+
+    def feed_data(self, data: _T, size: int = 0) -> None:
+        self._buffer.append((data, size))
+        if (waiter := self._waiter) is not None:
+            self._waiter = None
+            set_result(waiter, None)
+
+    def feed_eof(self) -> None:
+        self._eof = True
+        if (waiter := self._waiter) is not None:
+            self._waiter = None
+            set_result(waiter, None)
+
+    async def read(self) -> _T:
+        if not self._buffer and not self._eof:
+            assert not self._waiter
+            self._waiter = self._loop.create_future()
+            try:
+                await self._waiter
+            except (asyncio.CancelledError, asyncio.TimeoutError):
+                self._waiter = None
+                raise
+        if self._buffer:
+            data, _ = self._buffer.popleft()
+            return data
+        if self._exception is not None:
+            raise self._exception
+        raise EofStream
+
+    def __aiter__(self) -> AsyncStreamIterator[_T]:
+        return AsyncStreamIterator(self.read)
+
+
+class FlowControlDataQueue(DataQueue[_T]):
+    """FlowControlDataQueue resumes and pauses an underlying stream.
+
+    It is a destination for parsed data.
+
+    This class is deprecated and will be removed in version 4.0.
+    """
+
+    def __init__(
+        self, protocol: BaseProtocol, limit: int, *, loop: asyncio.AbstractEventLoop
+    ) -> None:
+        super().__init__(loop=loop)
+        self._size = 0
+        self._protocol = protocol
+        self._limit = limit * 2
+
+    def feed_data(self, data: _T, size: int = 0) -> None:
+        super().feed_data(data, size)
+        self._size += size
+
+        if self._size > self._limit and not self._protocol._reading_paused:
+            self._protocol.pause_reading()
+
+    async def read(self) -> _T:
+        if not self._buffer and not self._eof:
+            assert not self._waiter
+            self._waiter = self._loop.create_future()
+            try:
+                await self._waiter
+            except (asyncio.CancelledError, asyncio.TimeoutError):
+                self._waiter = None
+                raise
+        if self._buffer:
+            data, size = self._buffer.popleft()
+            self._size -= size
+            if self._size < self._limit and self._protocol._reading_paused:
+                self._protocol.resume_reading()
+            return data
+        if self._exception is not None:
+            raise self._exception
+        raise EofStream

deepseek/lib/python3.10/site-packages/aiohttp/test_utils.py

@@ -0,0 +1,770 @@
+"""Utilities shared by tests."""
+
+import asyncio
+import contextlib
+import gc
+import inspect
+import ipaddress
+import os
+import socket
+import sys
+import warnings
+from abc import ABC, abstractmethod
+from types import TracebackType
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Callable,
+    Generic,
+    Iterator,
+    List,
+    Optional,
+    Type,
+    TypeVar,
+    cast,
+    overload,
+)
+from unittest import IsolatedAsyncioTestCase, mock
+
+from aiosignal import Signal
+from multidict import CIMultiDict, CIMultiDictProxy
+from yarl import URL
+
+import aiohttp
+from aiohttp.client import (
+    _RequestContextManager,
+    _RequestOptions,
+    _WSRequestContextManager,
+)
+
+from . import ClientSession, hdrs
+from .abc import AbstractCookieJar
+from .client_reqrep import ClientResponse
+from .client_ws import ClientWebSocketResponse
+from .helpers import sentinel
+from .http import HttpVersion, RawRequestMessage
+from .streams import EMPTY_PAYLOAD, StreamReader
+from .typedefs import StrOrURL
+from .web import (
+    Application,
+    AppRunner,
+    BaseRequest,
+    BaseRunner,
+    Request,
+    Server,
+    ServerRunner,
+    SockSite,
+    UrlMappingMatchInfo,
+)
+from .web_protocol import _RequestHandler
+
+if TYPE_CHECKING:
+    from ssl import SSLContext
+else:
+    SSLContext = None
+
+if sys.version_info >= (3, 11) and TYPE_CHECKING:
+    from typing import Unpack
+
+if sys.version_info >= (3, 11):
+    from typing import Self
+else:
+    Self = Any
+
+_ApplicationNone = TypeVar("_ApplicationNone", Application, None)
+_Request = TypeVar("_Request", bound=BaseRequest)
+
+REUSE_ADDRESS = os.name == "posix" and sys.platform != "cygwin"
+
+
+def get_unused_port_socket(
+    host: str, family: socket.AddressFamily = socket.AF_INET
+) -> socket.socket:
+    return get_port_socket(host, 0, family)
+
+
+def get_port_socket(
+    host: str, port: int, family: socket.AddressFamily
+) -> socket.socket:
+    s = socket.socket(family, socket.SOCK_STREAM)
+    if REUSE_ADDRESS:
+        # Windows has different semantics for SO_REUSEADDR,
+        # so don't set it. Ref:
+        # https://docs.microsoft.com/en-us/windows/win32/winsock/using-so-reuseaddr-and-so-exclusiveaddruse
+        s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+    s.bind((host, port))
+    return s
+
+
+def unused_port() -> int:
+    """Return a port that is unused on the current host."""
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+        s.bind(("127.0.0.1", 0))
+        return cast(int, s.getsockname()[1])
+
+
+class BaseTestServer(ABC):
+    __test__ = False
+
+    def __init__(
+        self,
+        *,
+        scheme: str = "",
+        loop: Optional[asyncio.AbstractEventLoop] = None,
+        host: str = "127.0.0.1",
+        port: Optional[int] = None,
+        skip_url_asserts: bool = False,
+        socket_factory: Callable[
+            [str, int, socket.AddressFamily], socket.socket
+        ] = get_port_socket,
+        **kwargs: Any,
+    ) -> None:
+        self._loop = loop
+        self.runner: Optional[BaseRunner] = None
+        self._root: Optional[URL] = None
+        self.host = host
+        self.port = port
+        self._closed = False
+        self.scheme = scheme
+        self.skip_url_asserts = skip_url_asserts
+        self.socket_factory = socket_factory
+
+    async def start_server(
+        self, loop: Optional[asyncio.AbstractEventLoop] = None, **kwargs: Any
+    ) -> None:
+        if self.runner:
+            return
+        self._loop = loop
+        self._ssl = kwargs.pop("ssl", None)
+        self.runner = await self._make_runner(handler_cancellation=True, **kwargs)
+        await self.runner.setup()
+        if not self.port:
+            self.port = 0
+        absolute_host = self.host
+        try:
+            version = ipaddress.ip_address(self.host).version
+        except ValueError:
+            version = 4
+        if version == 6:
+            absolute_host = f"[{self.host}]"
+        family = socket.AF_INET6 if version == 6 else socket.AF_INET
+        _sock = self.socket_factory(self.host, self.port, family)
+        self.host, self.port = _sock.getsockname()[:2]
+        site = SockSite(self.runner, sock=_sock, ssl_context=self._ssl)
+        await site.start()
+        server = site._server
+        assert server is not None
+        sockets = server.sockets  # type: ignore[attr-defined]
+        assert sockets is not None
+        self.port = sockets[0].getsockname()[1]
+        if not self.scheme:
+            self.scheme = "https" if self._ssl else "http"
+        self._root = URL(f"{self.scheme}://{absolute_host}:{self.port}")
+
+    @abstractmethod  # pragma: no cover
+    async def _make_runner(self, **kwargs: Any) -> BaseRunner:
+        pass
+
+    def make_url(self, path: StrOrURL) -> URL:
+        assert self._root is not None
+        url = URL(path)
+        if not self.skip_url_asserts:
+            assert not url.absolute
+            return self._root.join(url)
+        else:
+            return URL(str(self._root) + str(path))
+
+    @property
+    def started(self) -> bool:
+        return self.runner is not None
+
+    @property
+    def closed(self) -> bool:
+        return self._closed
+
+    @property
+    def handler(self) -> Server:
+        # for backward compatibility
+        # web.Server instance
+        runner = self.runner
+        assert runner is not None
+        assert runner.server is not None
+        return runner.server
+
+    async def close(self) -> None:
+        """Close all fixtures created by the test client.
+
+        After that point, the TestClient is no longer usable.
+
+        This is an idempotent function: running close multiple times
+        will not have any additional effects.
+
+        close is also run when the object is garbage collected, and on
+        exit when used as a context manager.
+
+        """
+        if self.started and not self.closed:
+            assert self.runner is not None
+            await self.runner.cleanup()
+            self._root = None
+            self.port = None
+            self._closed = True
+
+    def __enter__(self) -> None:
+        raise TypeError("Use async with instead")
+
+    def __exit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc_value: Optional[BaseException],
+        traceback: Optional[TracebackType],
+    ) -> None:
+        # __exit__ should exist in pair with __enter__ but never executed
+        pass  # pragma: no cover
+
+    async def __aenter__(self) -> "BaseTestServer":
+        await self.start_server(loop=self._loop)
+        return self
+
+    async def __aexit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc_value: Optional[BaseException],
+        traceback: Optional[TracebackType],
+    ) -> None:
+        await self.close()
+
+
+class TestServer(BaseTestServer):
+    def __init__(
+        self,
+        app: Application,
+        *,
+        scheme: str = "",
+        host: str = "127.0.0.1",
+        port: Optional[int] = None,
+        **kwargs: Any,
+    ):
+        self.app = app
+        super().__init__(scheme=scheme, host=host, port=port, **kwargs)
+
+    async def _make_runner(self, **kwargs: Any) -> BaseRunner:
+        return AppRunner(self.app, **kwargs)
+
+
+class RawTestServer(BaseTestServer):
+    def __init__(
+        self,
+        handler: _RequestHandler,
+        *,
+        scheme: str = "",
+        host: str = "127.0.0.1",
+        port: Optional[int] = None,
+        **kwargs: Any,
+    ) -> None:
+        self._handler = handler
+        super().__init__(scheme=scheme, host=host, port=port, **kwargs)
+
+    async def _make_runner(self, debug: bool = True, **kwargs: Any) -> ServerRunner:
+        srv = Server(self._handler, loop=self._loop, debug=debug, **kwargs)
+        return ServerRunner(srv, debug=debug, **kwargs)
+
+
+class TestClient(Generic[_Request, _ApplicationNone]):
+    """
+    A test client implementation.
+
+    To write functional tests for aiohttp based servers.
+
+    """
+
+    __test__ = False
+
+    @overload
+    def __init__(
+        self: "TestClient[Request, Application]",
+        server: TestServer,
+        *,
+        cookie_jar: Optional[AbstractCookieJar] = None,
+        **kwargs: Any,
+    ) -> None: ...
+    @overload
+    def __init__(
+        self: "TestClient[_Request, None]",
+        server: BaseTestServer,
+        *,
+        cookie_jar: Optional[AbstractCookieJar] = None,
+        **kwargs: Any,
+    ) -> None: ...
+    def __init__(
+        self,
+        server: BaseTestServer,
+        *,
+        cookie_jar: Optional[AbstractCookieJar] = None,
+        loop: Optional[asyncio.AbstractEventLoop] = None,
+        **kwargs: Any,
+    ) -> None:
+        if not isinstance(server, BaseTestServer):
+            raise TypeError(
+                "server must be TestServer instance, found type: %r" % type(server)
+            )
+        self._server = server
+        self._loop = loop
+        if cookie_jar is None:
+            cookie_jar = aiohttp.CookieJar(unsafe=True, loop=loop)
+        self._session = ClientSession(loop=loop, cookie_jar=cookie_jar, **kwargs)
+        self._session._retry_connection = False
+        self._closed = False
+        self._responses: List[ClientResponse] = []
+        self._websockets: List[ClientWebSocketResponse] = []
+
+    async def start_server(self) -> None:
+        await self._server.start_server(loop=self._loop)
+
+    @property
+    def host(self) -> str:
+        return self._server.host
+
+    @property
+    def port(self) -> Optional[int]:
+        return self._server.port
+
+    @property
+    def server(self) -> BaseTestServer:
+        return self._server
+
+    @property
+    def app(self) -> _ApplicationNone:
+        return getattr(self._server, "app", None)  # type: ignore[return-value]
+
+    @property
+    def session(self) -> ClientSession:
+        """An internal aiohttp.ClientSession.
+
+        Unlike the methods on the TestClient, client session requests
+        do not automatically include the host in the url queried, and
+        will require an absolute path to the resource.
+
+        """
+        return self._session
+
+    def make_url(self, path: StrOrURL) -> URL:
+        return self._server.make_url(path)
+
+    async def _request(
+        self, method: str, path: StrOrURL, **kwargs: Any
+    ) -> ClientResponse:
+        resp = await self._session.request(method, self.make_url(path), **kwargs)
+        # save it to close later
+        self._responses.append(resp)
+        return resp
+
+    if sys.version_info >= (3, 11) and TYPE_CHECKING:
+
+        def request(
+            self, method: str, path: StrOrURL, **kwargs: Unpack[_RequestOptions]
+        ) -> _RequestContextManager: ...
+
+        def get(
+            self,
+            path: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> _RequestContextManager: ...
+
+        def options(
+            self,
+            path: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> _RequestContextManager: ...
+
+        def head(
+            self,
+            path: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> _RequestContextManager: ...
+
+        def post(
+            self,
+            path: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> _RequestContextManager: ...
+
+        def put(
+            self,
+            path: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> _RequestContextManager: ...
+
+        def patch(
+            self,
+            path: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> _RequestContextManager: ...
+
+        def delete(
+            self,
+            path: StrOrURL,
+            **kwargs: Unpack[_RequestOptions],
+        ) -> _RequestContextManager: ...
+
+    else:
+
+        def request(
+            self, method: str, path: StrOrURL, **kwargs: Any
+        ) -> _RequestContextManager:
+            """Routes a request to tested http server.
+
+            The interface is identical to aiohttp.ClientSession.request,
+            except the loop kwarg is overridden by the instance used by the
+            test server.
+
+            """
+            return _RequestContextManager(self._request(method, path, **kwargs))
+
+        def get(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
+            """Perform an HTTP GET request."""
+            return _RequestContextManager(self._request(hdrs.METH_GET, path, **kwargs))
+
+        def post(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
+            """Perform an HTTP POST request."""
+            return _RequestContextManager(self._request(hdrs.METH_POST, path, **kwargs))
+
+        def options(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
+            """Perform an HTTP OPTIONS request."""
+            return _RequestContextManager(
+                self._request(hdrs.METH_OPTIONS, path, **kwargs)
+            )
+
+        def head(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
+            """Perform an HTTP HEAD request."""
+            return _RequestContextManager(self._request(hdrs.METH_HEAD, path, **kwargs))
+
+        def put(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
+            """Perform an HTTP PUT request."""
+            return _RequestContextManager(self._request(hdrs.METH_PUT, path, **kwargs))
+
+        def patch(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
+            """Perform an HTTP PATCH request."""
+            return _RequestContextManager(
+                self._request(hdrs.METH_PATCH, path, **kwargs)
+            )
+
+        def delete(self, path: StrOrURL, **kwargs: Any) -> _RequestContextManager:
+            """Perform an HTTP PATCH request."""
+            return _RequestContextManager(
+                self._request(hdrs.METH_DELETE, path, **kwargs)
+            )
+
+    def ws_connect(self, path: StrOrURL, **kwargs: Any) -> _WSRequestContextManager:
+        """Initiate websocket connection.
+
+        The api corresponds to aiohttp.ClientSession.ws_connect.
+
+        """
+        return _WSRequestContextManager(self._ws_connect(path, **kwargs))
+
+    async def _ws_connect(
+        self, path: StrOrURL, **kwargs: Any
+    ) -> ClientWebSocketResponse:
+        ws = await self._session.ws_connect(self.make_url(path), **kwargs)
+        self._websockets.append(ws)
+        return ws
+
+    async def close(self) -> None:
+        """Close all fixtures created by the test client.
+
+        After that point, the TestClient is no longer usable.
+
+        This is an idempotent function: running close multiple times
+        will not have any additional effects.
+
+        close is also run on exit when used as a(n) (asynchronous)
+        context manager.
+
+        """
+        if not self._closed:
+            for resp in self._responses:
+                resp.close()
+            for ws in self._websockets:
+                await ws.close()
+            await self._session.close()
+            await self._server.close()
+            self._closed = True
+
+    def __enter__(self) -> None:
+        raise TypeError("Use async with instead")
+
+    def __exit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc: Optional[BaseException],
+        tb: Optional[TracebackType],
+    ) -> None:
+        # __exit__ should exist in pair with __enter__ but never executed
+        pass  # pragma: no cover
+
+    async def __aenter__(self) -> Self:
+        await self.start_server()
+        return self
+
+    async def __aexit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc: Optional[BaseException],
+        tb: Optional[TracebackType],
+    ) -> None:
+        await self.close()
+
+
+class AioHTTPTestCase(IsolatedAsyncioTestCase):
+    """A base class to allow for unittest web applications using aiohttp.
+
+    Provides the following:
+
+    * self.client (aiohttp.test_utils.TestClient): an aiohttp test client.
+    * self.loop (asyncio.BaseEventLoop): the event loop in which the
+        application and server are running.
+    * self.app (aiohttp.web.Application): the application returned by
+        self.get_application()
+
+    Note that the TestClient's methods are asynchronous: you have to
+    execute function on the test client using asynchronous methods.
+    """
+
+    async def get_application(self) -> Application:
+        """Get application.
+
+        This method should be overridden
+        to return the aiohttp.web.Application
+        object to test.
+        """
+        return self.get_app()
+
+    def get_app(self) -> Application:
+        """Obsolete method used to constructing web application.
+
+        Use .get_application() coroutine instead.
+        """
+        raise RuntimeError("Did you forget to define get_application()?")
+
+    async def asyncSetUp(self) -> None:
+        self.loop = asyncio.get_running_loop()
+        return await self.setUpAsync()
+
+    async def setUpAsync(self) -> None:
+        self.app = await self.get_application()
+        self.server = await self.get_server(self.app)
+        self.client = await self.get_client(self.server)
+
+        await self.client.start_server()
+
+    async def asyncTearDown(self) -> None:
+        return await self.tearDownAsync()
+
+    async def tearDownAsync(self) -> None:
+        await self.client.close()
+
+    async def get_server(self, app: Application) -> TestServer:
+        """Return a TestServer instance."""
+        return TestServer(app, loop=self.loop)
+
+    async def get_client(self, server: TestServer) -> TestClient[Request, Application]:
+        """Return a TestClient instance."""
+        return TestClient(server, loop=self.loop)
+
+
+def unittest_run_loop(func: Any, *args: Any, **kwargs: Any) -> Any:
+    """
+    A decorator dedicated to use with asynchronous AioHTTPTestCase test methods.
+
+    In 3.8+, this does nothing.
+    """
+    warnings.warn(
+        "Decorator `@unittest_run_loop` is no longer needed in aiohttp 3.8+",
+        DeprecationWarning,
+        stacklevel=2,
+    )
+    return func
+
+
+_LOOP_FACTORY = Callable[[], asyncio.AbstractEventLoop]
+
+
+@contextlib.contextmanager
+def loop_context(
+    loop_factory: _LOOP_FACTORY = asyncio.new_event_loop, fast: bool = False
+) -> Iterator[asyncio.AbstractEventLoop]:
+    """A contextmanager that creates an event_loop, for test purposes.
+
+    Handles the creation and cleanup of a test loop.
+    """
+    loop = setup_test_loop(loop_factory)
+    yield loop
+    teardown_test_loop(loop, fast=fast)
+
+
+def setup_test_loop(
+    loop_factory: _LOOP_FACTORY = asyncio.new_event_loop,
+) -> asyncio.AbstractEventLoop:
+    """Create and return an asyncio.BaseEventLoop instance.
+
+    The caller should also call teardown_test_loop,
+    once they are done with the loop.
+    """
+    loop = loop_factory()
+    asyncio.set_event_loop(loop)
+    return loop
+
+
+def teardown_test_loop(loop: asyncio.AbstractEventLoop, fast: bool = False) -> None:
+    """Teardown and cleanup an event_loop created by setup_test_loop."""
+    closed = loop.is_closed()
+    if not closed:
+        loop.call_soon(loop.stop)
+        loop.run_forever()
+        loop.close()
+
+    if not fast:
+        gc.collect()
+
+    asyncio.set_event_loop(None)
+
+
+def _create_app_mock() -> mock.MagicMock:
+    def get_dict(app: Any, key: str) -> Any:
+        return app.__app_dict[key]
+
+    def set_dict(app: Any, key: str, value: Any) -> None:
+        app.__app_dict[key] = value
+
+    app = mock.MagicMock(spec=Application)
+    app.__app_dict = {}
+    app.__getitem__ = get_dict
+    app.__setitem__ = set_dict
+
+    app._debug = False
+    app.on_response_prepare = Signal(app)
+    app.on_response_prepare.freeze()
+    return app
+
+
+def _create_transport(sslcontext: Optional[SSLContext] = None) -> mock.Mock:
+    transport = mock.Mock()
+
+    def get_extra_info(key: str) -> Optional[SSLContext]:
+        if key == "sslcontext":
+            return sslcontext
+        else:
+            return None
+
+    transport.get_extra_info.side_effect = get_extra_info
+    return transport
+
+
+def make_mocked_request(
+    method: str,
+    path: str,
+    headers: Any = None,
+    *,
+    match_info: Any = sentinel,
+    version: HttpVersion = HttpVersion(1, 1),
+    closing: bool = False,
+    app: Any = None,
+    writer: Any = sentinel,
+    protocol: Any = sentinel,
+    transport: Any = sentinel,
+    payload: StreamReader = EMPTY_PAYLOAD,
+    sslcontext: Optional[SSLContext] = None,
+    client_max_size: int = 1024**2,
+    loop: Any = ...,
+) -> Request:
+    """Creates mocked web.Request testing purposes.
+
+    Useful in unit tests, when spinning full web server is overkill or
+    specific conditions and errors are hard to trigger.
+    """
+    task = mock.Mock()
+    if loop is ...:
+        # no loop passed, try to get the current one if
+        # its is running as we need a real loop to create
+        # executor jobs to be able to do testing
+        # with a real executor
+        try:
+            loop = asyncio.get_running_loop()
+        except RuntimeError:
+            loop = mock.Mock()
+            loop.create_future.return_value = ()
+
+    if version < HttpVersion(1, 1):
+        closing = True
+
+    if headers:
+        headers = CIMultiDictProxy(CIMultiDict(headers))
+        raw_hdrs = tuple(
+            (k.encode("utf-8"), v.encode("utf-8")) for k, v in headers.items()
+        )
+    else:
+        headers = CIMultiDictProxy(CIMultiDict())
+        raw_hdrs = ()
+
+    chunked = "chunked" in headers.get(hdrs.TRANSFER_ENCODING, "").lower()
+
+    message = RawRequestMessage(
+        method,
+        path,
+        version,
+        headers,
+        raw_hdrs,
+        closing,
+        None,
+        False,
+        chunked,
+        URL(path),
+    )
+    if app is None:
+        app = _create_app_mock()
+
+    if transport is sentinel:
+        transport = _create_transport(sslcontext)
+
+    if protocol is sentinel:
+        protocol = mock.Mock()
+        protocol.transport = transport
+
+    if writer is sentinel:
+        writer = mock.Mock()
+        writer.write_headers = make_mocked_coro(None)
+        writer.write = make_mocked_coro(None)
+        writer.write_eof = make_mocked_coro(None)
+        writer.drain = make_mocked_coro(None)
+        writer.transport = transport
+
+    protocol.transport = transport
+    protocol.writer = writer
+
+    req = Request(
+        message, payload, protocol, writer, task, loop, client_max_size=client_max_size
+    )
+
+    match_info = UrlMappingMatchInfo(
+        {} if match_info is sentinel else match_info, mock.Mock()
+    )
+    match_info.add_app(app)
+    req._match_info = match_info
+
+    return req
+
+
+def make_mocked_coro(
+    return_value: Any = sentinel, raise_exception: Any = sentinel
+) -> Any:
+    """Creates a coroutine mock."""
+
+    async def mock_coro(*args: Any, **kwargs: Any) -> Any:
+        if raise_exception is not sentinel:
+            raise raise_exception
+        if not inspect.isawaitable(return_value):
+            return return_value
+        await return_value
+
+    return mock.Mock(wraps=mock_coro)

deepseek/lib/python3.10/site-packages/aiohttp/typedefs.py

@@ -0,0 +1,69 @@
+import json
+import os
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Awaitable,
+    Callable,
+    Iterable,
+    Mapping,
+    Protocol,
+    Tuple,
+    Union,
+)
+
+from multidict import CIMultiDict, CIMultiDictProxy, MultiDict, MultiDictProxy, istr
+from yarl import URL, Query as _Query
+
+Query = _Query
+
+DEFAULT_JSON_ENCODER = json.dumps
+DEFAULT_JSON_DECODER = json.loads
+
+if TYPE_CHECKING:
+    _CIMultiDict = CIMultiDict[str]
+    _CIMultiDictProxy = CIMultiDictProxy[str]
+    _MultiDict = MultiDict[str]
+    _MultiDictProxy = MultiDictProxy[str]
+    from http.cookies import BaseCookie, Morsel
+
+    from .web import Request, StreamResponse
+else:
+    _CIMultiDict = CIMultiDict
+    _CIMultiDictProxy = CIMultiDictProxy
+    _MultiDict = MultiDict
+    _MultiDictProxy = MultiDictProxy
+
+Byteish = Union[bytes, bytearray, memoryview]
+JSONEncoder = Callable[[Any], str]
+JSONDecoder = Callable[[str], Any]
+LooseHeaders = Union[
+    Mapping[str, str],
+    Mapping[istr, str],
+    _CIMultiDict,
+    _CIMultiDictProxy,
+    Iterable[Tuple[Union[str, istr], str]],
+]
+RawHeaders = Tuple[Tuple[bytes, bytes], ...]
+StrOrURL = Union[str, URL]
+
+LooseCookiesMappings = Mapping[str, Union[str, "BaseCookie[str]", "Morsel[Any]"]]
+LooseCookiesIterables = Iterable[
+    Tuple[str, Union[str, "BaseCookie[str]", "Morsel[Any]"]]
+]
+LooseCookies = Union[
+    LooseCookiesMappings,
+    LooseCookiesIterables,
+    "BaseCookie[str]",
+]
+
+Handler = Callable[["Request"], Awaitable["StreamResponse"]]
+
+
+class Middleware(Protocol):
+    def __call__(
+        self, request: "Request", handler: Handler
+    ) -> Awaitable["StreamResponse"]: ...
+
+
+PathLike = Union[str, "os.PathLike[str]"]

deepseek/lib/python3.10/site-packages/aiohttp/web.py

@@ -0,0 +1,601 @@
+import asyncio
+import logging
+import os
+import socket
+import sys
+import warnings
+from argparse import ArgumentParser
+from collections.abc import Iterable
+from contextlib import suppress
+from importlib import import_module
+from typing import (
+    Any,
+    Awaitable,
+    Callable,
+    Iterable as TypingIterable,
+    List,
+    Optional,
+    Set,
+    Type,
+    Union,
+    cast,
+)
+
+from .abc import AbstractAccessLogger
+from .helpers import AppKey as AppKey
+from .log import access_logger
+from .typedefs import PathLike
+from .web_app import Application as Application, CleanupError as CleanupError
+from .web_exceptions import (
+    HTTPAccepted as HTTPAccepted,
+    HTTPBadGateway as HTTPBadGateway,
+    HTTPBadRequest as HTTPBadRequest,
+    HTTPClientError as HTTPClientError,
+    HTTPConflict as HTTPConflict,
+    HTTPCreated as HTTPCreated,
+    HTTPError as HTTPError,
+    HTTPException as HTTPException,
+    HTTPExpectationFailed as HTTPExpectationFailed,
+    HTTPFailedDependency as HTTPFailedDependency,
+    HTTPForbidden as HTTPForbidden,
+    HTTPFound as HTTPFound,
+    HTTPGatewayTimeout as HTTPGatewayTimeout,
+    HTTPGone as HTTPGone,
+    HTTPInsufficientStorage as HTTPInsufficientStorage,
+    HTTPInternalServerError as HTTPInternalServerError,
+    HTTPLengthRequired as HTTPLengthRequired,
+    HTTPMethodNotAllowed as HTTPMethodNotAllowed,
+    HTTPMisdirectedRequest as HTTPMisdirectedRequest,
+    HTTPMove as HTTPMove,
+    HTTPMovedPermanently as HTTPMovedPermanently,
+    HTTPMultipleChoices as HTTPMultipleChoices,
+    HTTPNetworkAuthenticationRequired as HTTPNetworkAuthenticationRequired,
+    HTTPNoContent as HTTPNoContent,
+    HTTPNonAuthoritativeInformation as HTTPNonAuthoritativeInformation,
+    HTTPNotAcceptable as HTTPNotAcceptable,
+    HTTPNotExtended as HTTPNotExtended,
+    HTTPNotFound as HTTPNotFound,
+    HTTPNotImplemented as HTTPNotImplemented,
+    HTTPNotModified as HTTPNotModified,
+    HTTPOk as HTTPOk,
+    HTTPPartialContent as HTTPPartialContent,
+    HTTPPaymentRequired as HTTPPaymentRequired,
+    HTTPPermanentRedirect as HTTPPermanentRedirect,
+    HTTPPreconditionFailed as HTTPPreconditionFailed,
+    HTTPPreconditionRequired as HTTPPreconditionRequired,
+    HTTPProxyAuthenticationRequired as HTTPProxyAuthenticationRequired,
+    HTTPRedirection as HTTPRedirection,
+    HTTPRequestEntityTooLarge as HTTPRequestEntityTooLarge,
+    HTTPRequestHeaderFieldsTooLarge as HTTPRequestHeaderFieldsTooLarge,
+    HTTPRequestRangeNotSatisfiable as HTTPRequestRangeNotSatisfiable,
+    HTTPRequestTimeout as HTTPRequestTimeout,
+    HTTPRequestURITooLong as HTTPRequestURITooLong,
+    HTTPResetContent as HTTPResetContent,
+    HTTPSeeOther as HTTPSeeOther,
+    HTTPServerError as HTTPServerError,
+    HTTPServiceUnavailable as HTTPServiceUnavailable,
+    HTTPSuccessful as HTTPSuccessful,
+    HTTPTemporaryRedirect as HTTPTemporaryRedirect,
+    HTTPTooManyRequests as HTTPTooManyRequests,
+    HTTPUnauthorized as HTTPUnauthorized,
+    HTTPUnavailableForLegalReasons as HTTPUnavailableForLegalReasons,
+    HTTPUnprocessableEntity as HTTPUnprocessableEntity,
+    HTTPUnsupportedMediaType as HTTPUnsupportedMediaType,
+    HTTPUpgradeRequired as HTTPUpgradeRequired,
+    HTTPUseProxy as HTTPUseProxy,
+    HTTPVariantAlsoNegotiates as HTTPVariantAlsoNegotiates,
+    HTTPVersionNotSupported as HTTPVersionNotSupported,
+    NotAppKeyWarning as NotAppKeyWarning,
+)
+from .web_fileresponse import FileResponse as FileResponse
+from .web_log import AccessLogger
+from .web_middlewares import (
+    middleware as middleware,
+    normalize_path_middleware as normalize_path_middleware,
+)
+from .web_protocol import (
+    PayloadAccessError as PayloadAccessError,
+    RequestHandler as RequestHandler,
+    RequestPayloadError as RequestPayloadError,
+)
+from .web_request import (
+    BaseRequest as BaseRequest,
+    FileField as FileField,
+    Request as Request,
+)
+from .web_response import (
+    ContentCoding as ContentCoding,
+    Response as Response,
+    StreamResponse as StreamResponse,
+    json_response as json_response,
+)
+from .web_routedef import (
+    AbstractRouteDef as AbstractRouteDef,
+    RouteDef as RouteDef,
+    RouteTableDef as RouteTableDef,
+    StaticDef as StaticDef,
+    delete as delete,
+    get as get,
+    head as head,
+    options as options,
+    patch as patch,
+    post as post,
+    put as put,
+    route as route,
+    static as static,
+    view as view,
+)
+from .web_runner import (
+    AppRunner as AppRunner,
+    BaseRunner as BaseRunner,
+    BaseSite as BaseSite,
+    GracefulExit as GracefulExit,
+    NamedPipeSite as NamedPipeSite,
+    ServerRunner as ServerRunner,
+    SockSite as SockSite,
+    TCPSite as TCPSite,
+    UnixSite as UnixSite,
+)
+from .web_server import Server as Server
+from .web_urldispatcher import (
+    AbstractResource as AbstractResource,
+    AbstractRoute as AbstractRoute,
+    DynamicResource as DynamicResource,
+    PlainResource as PlainResource,
+    PrefixedSubAppResource as PrefixedSubAppResource,
+    Resource as Resource,
+    ResourceRoute as ResourceRoute,
+    StaticResource as StaticResource,
+    UrlDispatcher as UrlDispatcher,
+    UrlMappingMatchInfo as UrlMappingMatchInfo,
+    View as View,
+)
+from .web_ws import (
+    WebSocketReady as WebSocketReady,
+    WebSocketResponse as WebSocketResponse,
+    WSMsgType as WSMsgType,
+)
+
+__all__ = (
+    # web_app
+    "AppKey",
+    "Application",
+    "CleanupError",
+    # web_exceptions
+    "NotAppKeyWarning",
+    "HTTPAccepted",
+    "HTTPBadGateway",
+    "HTTPBadRequest",
+    "HTTPClientError",
+    "HTTPConflict",
+    "HTTPCreated",
+    "HTTPError",
+    "HTTPException",
+    "HTTPExpectationFailed",
+    "HTTPFailedDependency",
+    "HTTPForbidden",
+    "HTTPFound",
+    "HTTPGatewayTimeout",
+    "HTTPGone",
+    "HTTPInsufficientStorage",
+    "HTTPInternalServerError",
+    "HTTPLengthRequired",
+    "HTTPMethodNotAllowed",
+    "HTTPMisdirectedRequest",
+    "HTTPMove",
+    "HTTPMovedPermanently",
+    "HTTPMultipleChoices",
+    "HTTPNetworkAuthenticationRequired",
+    "HTTPNoContent",
+    "HTTPNonAuthoritativeInformation",
+    "HTTPNotAcceptable",
+    "HTTPNotExtended",
+    "HTTPNotFound",
+    "HTTPNotImplemented",
+    "HTTPNotModified",
+    "HTTPOk",
+    "HTTPPartialContent",
+    "HTTPPaymentRequired",
+    "HTTPPermanentRedirect",
+    "HTTPPreconditionFailed",
+    "HTTPPreconditionRequired",
+    "HTTPProxyAuthenticationRequired",
+    "HTTPRedirection",
+    "HTTPRequestEntityTooLarge",
+    "HTTPRequestHeaderFieldsTooLarge",
+    "HTTPRequestRangeNotSatisfiable",
+    "HTTPRequestTimeout",
+    "HTTPRequestURITooLong",
+    "HTTPResetContent",
+    "HTTPSeeOther",
+    "HTTPServerError",
+    "HTTPServiceUnavailable",
+    "HTTPSuccessful",
+    "HTTPTemporaryRedirect",
+    "HTTPTooManyRequests",
+    "HTTPUnauthorized",
+    "HTTPUnavailableForLegalReasons",
+    "HTTPUnprocessableEntity",
+    "HTTPUnsupportedMediaType",
+    "HTTPUpgradeRequired",
+    "HTTPUseProxy",
+    "HTTPVariantAlsoNegotiates",
+    "HTTPVersionNotSupported",
+    # web_fileresponse
+    "FileResponse",
+    # web_middlewares
+    "middleware",
+    "normalize_path_middleware",
+    # web_protocol
+    "PayloadAccessError",
+    "RequestHandler",
+    "RequestPayloadError",
+    # web_request
+    "BaseRequest",
+    "FileField",
+    "Request",
+    # web_response
+    "ContentCoding",
+    "Response",
+    "StreamResponse",
+    "json_response",
+    # web_routedef
+    "AbstractRouteDef",
+    "RouteDef",
+    "RouteTableDef",
+    "StaticDef",
+    "delete",
+    "get",
+    "head",
+    "options",
+    "patch",
+    "post",
+    "put",
+    "route",
+    "static",
+    "view",
+    # web_runner
+    "AppRunner",
+    "BaseRunner",
+    "BaseSite",
+    "GracefulExit",
+    "ServerRunner",
+    "SockSite",
+    "TCPSite",
+    "UnixSite",
+    "NamedPipeSite",
+    # web_server
+    "Server",
+    # web_urldispatcher
+    "AbstractResource",
+    "AbstractRoute",
+    "DynamicResource",
+    "PlainResource",
+    "PrefixedSubAppResource",
+    "Resource",
+    "ResourceRoute",
+    "StaticResource",
+    "UrlDispatcher",
+    "UrlMappingMatchInfo",
+    "View",
+    # web_ws
+    "WebSocketReady",
+    "WebSocketResponse",
+    "WSMsgType",
+    # web
+    "run_app",
+)
+
+
+try:
+    from ssl import SSLContext
+except ImportError:  # pragma: no cover
+    SSLContext = Any  # type: ignore[misc,assignment]
+
+# Only display warning when using -Wdefault, -We, -X dev or similar.
+warnings.filterwarnings("ignore", category=NotAppKeyWarning, append=True)
+
+HostSequence = TypingIterable[str]
+
+
+async def _run_app(
+    app: Union[Application, Awaitable[Application]],
+    *,
+    host: Optional[Union[str, HostSequence]] = None,
+    port: Optional[int] = None,
+    path: Union[PathLike, TypingIterable[PathLike], None] = None,
+    sock: Optional[Union[socket.socket, TypingIterable[socket.socket]]] = None,
+    shutdown_timeout: float = 60.0,
+    keepalive_timeout: float = 75.0,
+    ssl_context: Optional[SSLContext] = None,
+    print: Optional[Callable[..., None]] = print,
+    backlog: int = 128,
+    access_log_class: Type[AbstractAccessLogger] = AccessLogger,
+    access_log_format: str = AccessLogger.LOG_FORMAT,
+    access_log: Optional[logging.Logger] = access_logger,
+    handle_signals: bool = True,
+    reuse_address: Optional[bool] = None,
+    reuse_port: Optional[bool] = None,
+    handler_cancellation: bool = False,
+) -> None:
+    # An internal function to actually do all dirty job for application running
+    if asyncio.iscoroutine(app):
+        app = await app
+
+    app = cast(Application, app)
+
+    runner = AppRunner(
+        app,
+        handle_signals=handle_signals,
+        access_log_class=access_log_class,
+        access_log_format=access_log_format,
+        access_log=access_log,
+        keepalive_timeout=keepalive_timeout,
+        shutdown_timeout=shutdown_timeout,
+        handler_cancellation=handler_cancellation,
+    )
+
+    await runner.setup()
+
+    sites: List[BaseSite] = []
+
+    try:
+        if host is not None:
+            if isinstance(host, (str, bytes, bytearray, memoryview)):
+                sites.append(
+                    TCPSite(
+                        runner,
+                        host,
+                        port,
+                        ssl_context=ssl_context,
+                        backlog=backlog,
+                        reuse_address=reuse_address,
+                        reuse_port=reuse_port,
+                    )
+                )
+            else:
+                for h in host:
+                    sites.append(
+                        TCPSite(
+                            runner,
+                            h,
+                            port,
+                            ssl_context=ssl_context,
+                            backlog=backlog,
+                            reuse_address=reuse_address,
+                            reuse_port=reuse_port,
+                        )
+                    )
+        elif path is None and sock is None or port is not None:
+            sites.append(
+                TCPSite(
+                    runner,
+                    port=port,
+                    ssl_context=ssl_context,
+                    backlog=backlog,
+                    reuse_address=reuse_address,
+                    reuse_port=reuse_port,
+                )
+            )
+
+        if path is not None:
+            if isinstance(path, (str, os.PathLike)):
+                sites.append(
+                    UnixSite(
+                        runner,
+                        path,
+                        ssl_context=ssl_context,
+                        backlog=backlog,
+                    )
+                )
+            else:
+                for p in path:
+                    sites.append(
+                        UnixSite(
+                            runner,
+                            p,
+                            ssl_context=ssl_context,
+                            backlog=backlog,
+                        )
+                    )
+
+        if sock is not None:
+            if not isinstance(sock, Iterable):
+                sites.append(
+                    SockSite(
+                        runner,
+                        sock,
+                        ssl_context=ssl_context,
+                        backlog=backlog,
+                    )
+                )
+            else:
+                for s in sock:
+                    sites.append(
+                        SockSite(
+                            runner,
+                            s,
+                            ssl_context=ssl_context,
+                            backlog=backlog,
+                        )
+                    )
+        for site in sites:
+            await site.start()
+
+        if print:  # pragma: no branch
+            names = sorted(str(s.name) for s in runner.sites)
+            print(
+                "======== Running on {} ========\n"
+                "(Press CTRL+C to quit)".format(", ".join(names))
+            )
+
+        # sleep forever by 1 hour intervals,
+        while True:
+            await asyncio.sleep(3600)
+    finally:
+        await runner.cleanup()
+
+
+def _cancel_tasks(
+    to_cancel: Set["asyncio.Task[Any]"], loop: asyncio.AbstractEventLoop
+) -> None:
+    if not to_cancel:
+        return
+
+    for task in to_cancel:
+        task.cancel()
+
+    loop.run_until_complete(asyncio.gather(*to_cancel, return_exceptions=True))
+
+    for task in to_cancel:
+        if task.cancelled():
+            continue
+        if task.exception() is not None:
+            loop.call_exception_handler(
+                {
+                    "message": "unhandled exception during asyncio.run() shutdown",
+                    "exception": task.exception(),
+                    "task": task,
+                }
+            )
+
+
+def run_app(
+    app: Union[Application, Awaitable[Application]],
+    *,
+    host: Optional[Union[str, HostSequence]] = None,
+    port: Optional[int] = None,
+    path: Union[PathLike, TypingIterable[PathLike], None] = None,
+    sock: Optional[Union[socket.socket, TypingIterable[socket.socket]]] = None,
+    shutdown_timeout: float = 60.0,
+    keepalive_timeout: float = 75.0,
+    ssl_context: Optional[SSLContext] = None,
+    print: Optional[Callable[..., None]] = print,
+    backlog: int = 128,
+    access_log_class: Type[AbstractAccessLogger] = AccessLogger,
+    access_log_format: str = AccessLogger.LOG_FORMAT,
+    access_log: Optional[logging.Logger] = access_logger,
+    handle_signals: bool = True,
+    reuse_address: Optional[bool] = None,
+    reuse_port: Optional[bool] = None,
+    handler_cancellation: bool = False,
+    loop: Optional[asyncio.AbstractEventLoop] = None,
+) -> None:
+    """Run an app locally"""
+    if loop is None:
+        loop = asyncio.new_event_loop()
+
+    # Configure if and only if in debugging mode and using the default logger
+    if loop.get_debug() and access_log and access_log.name == "aiohttp.access":
+        if access_log.level == logging.NOTSET:
+            access_log.setLevel(logging.DEBUG)
+        if not access_log.hasHandlers():
+            access_log.addHandler(logging.StreamHandler())
+
+    main_task = loop.create_task(
+        _run_app(
+            app,
+            host=host,
+            port=port,
+            path=path,
+            sock=sock,
+            shutdown_timeout=shutdown_timeout,
+            keepalive_timeout=keepalive_timeout,
+            ssl_context=ssl_context,
+            print=print,
+            backlog=backlog,
+            access_log_class=access_log_class,
+            access_log_format=access_log_format,
+            access_log=access_log,
+            handle_signals=handle_signals,
+            reuse_address=reuse_address,
+            reuse_port=reuse_port,
+            handler_cancellation=handler_cancellation,
+        )
+    )
+
+    try:
+        asyncio.set_event_loop(loop)
+        loop.run_until_complete(main_task)
+    except (GracefulExit, KeyboardInterrupt):  # pragma: no cover
+        pass
+    finally:
+        try:
+            main_task.cancel()
+            with suppress(asyncio.CancelledError):
+                loop.run_until_complete(main_task)
+        finally:
+            _cancel_tasks(asyncio.all_tasks(loop), loop)
+            loop.run_until_complete(loop.shutdown_asyncgens())
+            loop.close()
+
+
+def main(argv: List[str]) -> None:
+    arg_parser = ArgumentParser(
+        description="aiohttp.web Application server", prog="aiohttp.web"
+    )
+    arg_parser.add_argument(
+        "entry_func",
+        help=(
+            "Callable returning the `aiohttp.web.Application` instance to "
+            "run. Should be specified in the 'module:function' syntax."
+        ),
+        metavar="entry-func",
+    )
+    arg_parser.add_argument(
+        "-H",
+        "--hostname",
+        help="TCP/IP hostname to serve on (default: localhost)",
+        default=None,
+    )
+    arg_parser.add_argument(
+        "-P",
+        "--port",
+        help="TCP/IP port to serve on (default: %(default)r)",
+        type=int,
+        default=8080,
+    )
+    arg_parser.add_argument(
+        "-U",
+        "--path",
+        help="Unix file system path to serve on. Can be combined with hostname "
+        "to serve on both Unix and TCP.",
+    )
+    args, extra_argv = arg_parser.parse_known_args(argv)
+
+    # Import logic
+    mod_str, _, func_str = args.entry_func.partition(":")
+    if not func_str or not mod_str:
+        arg_parser.error("'entry-func' not in 'module:function' syntax")
+    if mod_str.startswith("."):
+        arg_parser.error("relative module names not supported")
+    try:
+        module = import_module(mod_str)
+    except ImportError as ex:
+        arg_parser.error(f"unable to import {mod_str}: {ex}")
+    try:
+        func = getattr(module, func_str)
+    except AttributeError:
+        arg_parser.error(f"module {mod_str!r} has no attribute {func_str!r}")
+
+    # Compatibility logic
+    if args.path is not None and not hasattr(socket, "AF_UNIX"):
+        arg_parser.error(
+            "file system paths not supported by your operating environment"
+        )
+
+    logging.basicConfig(level=logging.DEBUG)
+
+    if args.path and args.hostname is None:
+        host = port = None
+    else:
+        host = args.hostname or "localhost"
+        port = args.port
+
+    app = func(extra_argv)
+    run_app(app, host=host, port=port, path=args.path)
+    arg_parser.exit(message="Stopped\n")
+
+
+if __name__ == "__main__":  # pragma: no branch
+    main(sys.argv[1:])  # pragma: no cover

deepseek/lib/python3.10/site-packages/aiohttp/web_fileresponse.py

@@ -0,0 +1,418 @@
+import asyncio
+import io
+import os
+import pathlib
+import sys
+from contextlib import suppress
+from enum import Enum, auto
+from mimetypes import MimeTypes
+from stat import S_ISREG
+from types import MappingProxyType
+from typing import (  # noqa
+    IO,
+    TYPE_CHECKING,
+    Any,
+    Awaitable,
+    Callable,
+    Final,
+    Iterator,
+    List,
+    Optional,
+    Set,
+    Tuple,
+    Union,
+    cast,
+)
+
+from . import hdrs
+from .abc import AbstractStreamWriter
+from .helpers import ETAG_ANY, ETag, must_be_empty_body
+from .typedefs import LooseHeaders, PathLike
+from .web_exceptions import (
+    HTTPForbidden,
+    HTTPNotFound,
+    HTTPNotModified,
+    HTTPPartialContent,
+    HTTPPreconditionFailed,
+    HTTPRequestRangeNotSatisfiable,
+)
+from .web_response import StreamResponse
+
+__all__ = ("FileResponse",)
+
+if TYPE_CHECKING:
+    from .web_request import BaseRequest
+
+
+_T_OnChunkSent = Optional[Callable[[bytes], Awaitable[None]]]
+
+
+NOSENDFILE: Final[bool] = bool(os.environ.get("AIOHTTP_NOSENDFILE"))
+
+CONTENT_TYPES: Final[MimeTypes] = MimeTypes()
+
+# File extension to IANA encodings map that will be checked in the order defined.
+ENCODING_EXTENSIONS = MappingProxyType(
+    {ext: CONTENT_TYPES.encodings_map[ext] for ext in (".br", ".gz")}
+)
+
+FALLBACK_CONTENT_TYPE = "application/octet-stream"
+
+# Provide additional MIME type/extension pairs to be recognized.
+# https://en.wikipedia.org/wiki/List_of_archive_formats#Compression_only
+ADDITIONAL_CONTENT_TYPES = MappingProxyType(
+    {
+        "application/gzip": ".gz",
+        "application/x-brotli": ".br",
+        "application/x-bzip2": ".bz2",
+        "application/x-compress": ".Z",
+        "application/x-xz": ".xz",
+    }
+)
+
+
+class _FileResponseResult(Enum):
+    """The result of the file response."""
+
+    SEND_FILE = auto()  # Ie a regular file to send
+    NOT_ACCEPTABLE = auto()  # Ie a socket, or non-regular file
+    PRE_CONDITION_FAILED = auto()  # Ie If-Match or If-None-Match failed
+    NOT_MODIFIED = auto()  # 304 Not Modified
+
+
+# Add custom pairs and clear the encodings map so guess_type ignores them.
+CONTENT_TYPES.encodings_map.clear()
+for content_type, extension in ADDITIONAL_CONTENT_TYPES.items():
+    CONTENT_TYPES.add_type(content_type, extension)  # type: ignore[attr-defined]
+
+
+_CLOSE_FUTURES: Set[asyncio.Future[None]] = set()
+
+
+class FileResponse(StreamResponse):
+    """A response object can be used to send files."""
+
+    def __init__(
+        self,
+        path: PathLike,
+        chunk_size: int = 256 * 1024,
+        status: int = 200,
+        reason: Optional[str] = None,
+        headers: Optional[LooseHeaders] = None,
+    ) -> None:
+        super().__init__(status=status, reason=reason, headers=headers)
+
+        self._path = pathlib.Path(path)
+        self._chunk_size = chunk_size
+
+    def _seek_and_read(self, fobj: IO[Any], offset: int, chunk_size: int) -> bytes:
+        fobj.seek(offset)
+        return fobj.read(chunk_size)  # type: ignore[no-any-return]
+
+    async def _sendfile_fallback(
+        self, writer: AbstractStreamWriter, fobj: IO[Any], offset: int, count: int
+    ) -> AbstractStreamWriter:
+        # To keep memory usage low,fobj is transferred in chunks
+        # controlled by the constructor's chunk_size argument.
+
+        chunk_size = self._chunk_size
+        loop = asyncio.get_event_loop()
+        chunk = await loop.run_in_executor(
+            None, self._seek_and_read, fobj, offset, chunk_size
+        )
+        while chunk:
+            await writer.write(chunk)
+            count = count - chunk_size
+            if count <= 0:
+                break
+            chunk = await loop.run_in_executor(None, fobj.read, min(chunk_size, count))
+
+        await writer.drain()
+        return writer
+
+    async def _sendfile(
+        self, request: "BaseRequest", fobj: IO[Any], offset: int, count: int
+    ) -> AbstractStreamWriter:
+        writer = await super().prepare(request)
+        assert writer is not None
+
+        if NOSENDFILE or self.compression:
+            return await self._sendfile_fallback(writer, fobj, offset, count)
+
+        loop = request._loop
+        transport = request.transport
+        assert transport is not None
+
+        try:
+            await loop.sendfile(transport, fobj, offset, count)
+        except NotImplementedError:
+            return await self._sendfile_fallback(writer, fobj, offset, count)
+
+        await super().write_eof()
+        return writer
+
+    @staticmethod
+    def _etag_match(etag_value: str, etags: Tuple[ETag, ...], *, weak: bool) -> bool:
+        if len(etags) == 1 and etags[0].value == ETAG_ANY:
+            return True
+        return any(
+            etag.value == etag_value for etag in etags if weak or not etag.is_weak
+        )
+
+    async def _not_modified(
+        self, request: "BaseRequest", etag_value: str, last_modified: float
+    ) -> Optional[AbstractStreamWriter]:
+        self.set_status(HTTPNotModified.status_code)
+        self._length_check = False
+        self.etag = etag_value  # type: ignore[assignment]
+        self.last_modified = last_modified  # type: ignore[assignment]
+        # Delete any Content-Length headers provided by user. HTTP 304
+        # should always have empty response body
+        return await super().prepare(request)
+
+    async def _precondition_failed(
+        self, request: "BaseRequest"
+    ) -> Optional[AbstractStreamWriter]:
+        self.set_status(HTTPPreconditionFailed.status_code)
+        self.content_length = 0
+        return await super().prepare(request)
+
+    def _make_response(
+        self, request: "BaseRequest", accept_encoding: str
+    ) -> Tuple[
+        _FileResponseResult, Optional[io.BufferedReader], os.stat_result, Optional[str]
+    ]:
+        """Return the response result, io object, stat result, and encoding.
+
+        If an uncompressed file is returned, the encoding is set to
+        :py:data:`None`.
+
+        This method should be called from a thread executor
+        since it calls os.stat which may block.
+        """
+        file_path, st, file_encoding = self._get_file_path_stat_encoding(
+            accept_encoding
+        )
+        if not file_path:
+            return _FileResponseResult.NOT_ACCEPTABLE, None, st, None
+
+        etag_value = f"{st.st_mtime_ns:x}-{st.st_size:x}"
+
+        # https://www.rfc-editor.org/rfc/rfc9110#section-13.1.1-2
+        if (ifmatch := request.if_match) is not None and not self._etag_match(
+            etag_value, ifmatch, weak=False
+        ):
+            return _FileResponseResult.PRE_CONDITION_FAILED, None, st, file_encoding
+
+        if (
+            (unmodsince := request.if_unmodified_since) is not None
+            and ifmatch is None
+            and st.st_mtime > unmodsince.timestamp()
+        ):
+            return _FileResponseResult.PRE_CONDITION_FAILED, None, st, file_encoding
+
+        # https://www.rfc-editor.org/rfc/rfc9110#section-13.1.2-2
+        if (ifnonematch := request.if_none_match) is not None and self._etag_match(
+            etag_value, ifnonematch, weak=True
+        ):
+            return _FileResponseResult.NOT_MODIFIED, None, st, file_encoding
+
+        if (
+            (modsince := request.if_modified_since) is not None
+            and ifnonematch is None
+            and st.st_mtime <= modsince.timestamp()
+        ):
+            return _FileResponseResult.NOT_MODIFIED, None, st, file_encoding
+
+        fobj = file_path.open("rb")
+        with suppress(OSError):
+            # fstat() may not be available on all platforms
+            # Once we open the file, we want the fstat() to ensure
+            # the file has not changed between the first stat()
+            # and the open().
+            st = os.stat(fobj.fileno())
+        return _FileResponseResult.SEND_FILE, fobj, st, file_encoding
+
+    def _get_file_path_stat_encoding(
+        self, accept_encoding: str
+    ) -> Tuple[Optional[pathlib.Path], os.stat_result, Optional[str]]:
+        file_path = self._path
+        for file_extension, file_encoding in ENCODING_EXTENSIONS.items():
+            if file_encoding not in accept_encoding:
+                continue
+
+            compressed_path = file_path.with_suffix(file_path.suffix + file_extension)
+            with suppress(OSError):
+                # Do not follow symlinks and ignore any non-regular files.
+                st = compressed_path.lstat()
+                if S_ISREG(st.st_mode):
+                    return compressed_path, st, file_encoding
+
+        # Fallback to the uncompressed file
+        st = file_path.stat()
+        return file_path if S_ISREG(st.st_mode) else None, st, None
+
+    async def prepare(self, request: "BaseRequest") -> Optional[AbstractStreamWriter]:
+        loop = asyncio.get_running_loop()
+        # Encoding comparisons should be case-insensitive
+        # https://www.rfc-editor.org/rfc/rfc9110#section-8.4.1
+        accept_encoding = request.headers.get(hdrs.ACCEPT_ENCODING, "").lower()
+        try:
+            response_result, fobj, st, file_encoding = await loop.run_in_executor(
+                None, self._make_response, request, accept_encoding
+            )
+        except PermissionError:
+            self.set_status(HTTPForbidden.status_code)
+            return await super().prepare(request)
+        except OSError:
+            # Most likely to be FileNotFoundError or OSError for circular
+            # symlinks in python >= 3.13, so respond with 404.
+            self.set_status(HTTPNotFound.status_code)
+            return await super().prepare(request)
+
+        # Forbid special files like sockets, pipes, devices, etc.
+        if response_result is _FileResponseResult.NOT_ACCEPTABLE:
+            self.set_status(HTTPForbidden.status_code)
+            return await super().prepare(request)
+
+        if response_result is _FileResponseResult.PRE_CONDITION_FAILED:
+            return await self._precondition_failed(request)
+
+        if response_result is _FileResponseResult.NOT_MODIFIED:
+            etag_value = f"{st.st_mtime_ns:x}-{st.st_size:x}"
+            last_modified = st.st_mtime
+            return await self._not_modified(request, etag_value, last_modified)
+
+        assert fobj is not None
+        try:
+            return await self._prepare_open_file(request, fobj, st, file_encoding)
+        finally:
+            # We do not await here because we do not want to wait
+            # for the executor to finish before returning the response
+            # so the connection can begin servicing another request
+            # as soon as possible.
+            close_future = loop.run_in_executor(None, fobj.close)
+            # Hold a strong reference to the future to prevent it from being
+            # garbage collected before it completes.
+            _CLOSE_FUTURES.add(close_future)
+            close_future.add_done_callback(_CLOSE_FUTURES.remove)
+
+    async def _prepare_open_file(
+        self,
+        request: "BaseRequest",
+        fobj: io.BufferedReader,
+        st: os.stat_result,
+        file_encoding: Optional[str],
+    ) -> Optional[AbstractStreamWriter]:
+        status = self._status
+        file_size: int = st.st_size
+        file_mtime: float = st.st_mtime
+        count: int = file_size
+        start: Optional[int] = None
+
+        if (ifrange := request.if_range) is None or file_mtime <= ifrange.timestamp():
+            # If-Range header check:
+            # condition = cached date >= last modification date
+            # return 206 if True else 200.
+            # if False:
+            #   Range header would not be processed, return 200
+            # if True but Range header missing
+            #   return 200
+            try:
+                rng = request.http_range
+                start = rng.start
+                end: Optional[int] = rng.stop
+            except ValueError:
+                # https://tools.ietf.org/html/rfc7233:
+                # A server generating a 416 (Range Not Satisfiable) response to
+                # a byte-range request SHOULD send a Content-Range header field
+                # with an unsatisfied-range value.
+                # The complete-length in a 416 response indicates the current
+                # length of the selected representation.
+                #
+                # Will do the same below. Many servers ignore this and do not
+                # send a Content-Range header with HTTP 416
+                self._headers[hdrs.CONTENT_RANGE] = f"bytes */{file_size}"
+                self.set_status(HTTPRequestRangeNotSatisfiable.status_code)
+                return await super().prepare(request)
+
+            # If a range request has been made, convert start, end slice
+            # notation into file pointer offset and count
+            if start is not None:
+                if start < 0 and end is None:  # return tail of file
+                    start += file_size
+                    if start < 0:
+                        # if Range:bytes=-1000 in request header but file size
+                        # is only 200, there would be trouble without this
+                        start = 0
+                    count = file_size - start
+                else:
+                    # rfc7233:If the last-byte-pos value is
+                    # absent, or if the value is greater than or equal to
+                    # the current length of the representation data,
+                    # the byte range is interpreted as the remainder
+                    # of the representation (i.e., the server replaces the
+                    # value of last-byte-pos with a value that is one less than
+                    # the current length of the selected representation).
+                    count = (
+                        min(end if end is not None else file_size, file_size) - start
+                    )
+
+                if start >= file_size:
+                    # HTTP 416 should be returned in this case.
+                    #
+                    # According to https://tools.ietf.org/html/rfc7233:
+                    # If a valid byte-range-set includes at least one
+                    # byte-range-spec with a first-byte-pos that is less than
+                    # the current length of the representation, or at least one
+                    # suffix-byte-range-spec with a non-zero suffix-length,
+                    # then the byte-range-set is satisfiable. Otherwise, the
+                    # byte-range-set is unsatisfiable.
+                    self._headers[hdrs.CONTENT_RANGE] = f"bytes */{file_size}"
+                    self.set_status(HTTPRequestRangeNotSatisfiable.status_code)
+                    return await super().prepare(request)
+
+                status = HTTPPartialContent.status_code
+                # Even though you are sending the whole file, you should still
+                # return a HTTP 206 for a Range request.
+                self.set_status(status)
+
+        # If the Content-Type header is not already set, guess it based on the
+        # extension of the request path. The encoding returned by guess_type
+        #  can be ignored since the map was cleared above.
+        if hdrs.CONTENT_TYPE not in self._headers:
+            if sys.version_info >= (3, 13):
+                guesser = CONTENT_TYPES.guess_file_type
+            else:
+                guesser = CONTENT_TYPES.guess_type
+            self.content_type = guesser(self._path)[0] or FALLBACK_CONTENT_TYPE
+
+        if file_encoding:
+            self._headers[hdrs.CONTENT_ENCODING] = file_encoding
+            self._headers[hdrs.VARY] = hdrs.ACCEPT_ENCODING
+            # Disable compression if we are already sending
+            # a compressed file since we don't want to double
+            # compress.
+            self._compression = False
+
+        self.etag = f"{st.st_mtime_ns:x}-{st.st_size:x}"  # type: ignore[assignment]
+        self.last_modified = file_mtime  # type: ignore[assignment]
+        self.content_length = count
+
+        self._headers[hdrs.ACCEPT_RANGES] = "bytes"
+
+        if status == HTTPPartialContent.status_code:
+            real_start = start
+            assert real_start is not None
+            self._headers[hdrs.CONTENT_RANGE] = "bytes {}-{}/{}".format(
+                real_start, real_start + count - 1, file_size
+            )
+
+        # If we are sending 0 bytes calling sendfile() will throw a ValueError
+        if count == 0 or must_be_empty_body(request.method, status):
+            return await super().prepare(request)
+
+        # be aware that start could be None or int=0 here.
+        offset = start or 0
+
+        return await self._sendfile(request, fobj, offset, count)

deepseek/lib/python3.10/site-packages/aiohttp/web_middlewares.py

@@ -0,0 +1,121 @@
+import re
+from typing import TYPE_CHECKING, Tuple, Type, TypeVar
+
+from .typedefs import Handler, Middleware
+from .web_exceptions import HTTPMove, HTTPPermanentRedirect
+from .web_request import Request
+from .web_response import StreamResponse
+from .web_urldispatcher import SystemRoute
+
+__all__ = (
+    "middleware",
+    "normalize_path_middleware",
+)
+
+if TYPE_CHECKING:
+    from .web_app import Application
+
+_Func = TypeVar("_Func")
+
+
+async def _check_request_resolves(request: Request, path: str) -> Tuple[bool, Request]:
+    alt_request = request.clone(rel_url=path)
+
+    match_info = await request.app.router.resolve(alt_request)
+    alt_request._match_info = match_info
+
+    if match_info.http_exception is None:
+        return True, alt_request
+
+    return False, request
+
+
+def middleware(f: _Func) -> _Func:
+    f.__middleware_version__ = 1  # type: ignore[attr-defined]
+    return f
+
+
+def normalize_path_middleware(
+    *,
+    append_slash: bool = True,
+    remove_slash: bool = False,
+    merge_slashes: bool = True,
+    redirect_class: Type[HTTPMove] = HTTPPermanentRedirect,
+) -> Middleware:
+    """Factory for producing a middleware that normalizes the path of a request.
+
+    Normalizing means:
+        - Add or remove a trailing slash to the path.
+        - Double slashes are replaced by one.
+
+    The middleware returns as soon as it finds a path that resolves
+    correctly. The order if both merge and append/remove are enabled is
+        1) merge slashes
+        2) append/remove slash
+        3) both merge slashes and append/remove slash.
+    If the path resolves with at least one of those conditions, it will
+    redirect to the new path.
+
+    Only one of `append_slash` and `remove_slash` can be enabled. If both
+    are `True` the factory will raise an assertion error
+
+    If `append_slash` is `True` the middleware will append a slash when
+    needed. If a resource is defined with trailing slash and the request
+    comes without it, it will append it automatically.
+
+    If `remove_slash` is `True`, `append_slash` must be `False`. When enabled
+    the middleware will remove trailing slashes and redirect if the resource
+    is defined
+
+    If merge_slashes is True, merge multiple consecutive slashes in the
+    path into one.
+    """
+    correct_configuration = not (append_slash and remove_slash)
+    assert correct_configuration, "Cannot both remove and append slash"
+
+    @middleware
+    async def impl(request: Request, handler: Handler) -> StreamResponse:
+        if isinstance(request.match_info.route, SystemRoute):
+            paths_to_check = []
+            if "?" in request.raw_path:
+                path, query = request.raw_path.split("?", 1)
+                query = "?" + query
+            else:
+                query = ""
+                path = request.raw_path
+
+            if merge_slashes:
+                paths_to_check.append(re.sub("//+", "/", path))
+            if append_slash and not request.path.endswith("/"):
+                paths_to_check.append(path + "/")
+            if remove_slash and request.path.endswith("/"):
+                paths_to_check.append(path[:-1])
+            if merge_slashes and append_slash:
+                paths_to_check.append(re.sub("//+", "/", path + "/"))
+            if merge_slashes and remove_slash:
+                merged_slashes = re.sub("//+", "/", path)
+                paths_to_check.append(merged_slashes[:-1])
+
+            for path in paths_to_check:
+                path = re.sub("^//+", "/", path)  # SECURITY: GHSA-v6wp-4m6f-gcjg
+                resolves, request = await _check_request_resolves(request, path)
+                if resolves:
+                    raise redirect_class(request.raw_path + query)
+
+        return await handler(request)
+
+    return impl
+
+
+def _fix_request_current_app(app: "Application") -> Middleware:
+    @middleware
+    async def impl(request: Request, handler: Handler) -> StreamResponse:
+        match_info = request.match_info
+        prev = match_info.current_app
+        match_info.current_app = app
+        try:
+            return await handler(request)
+        finally:
+            match_info.current_app = prev
+
+    return impl

deepseek/lib/python3.10/site-packages/aiohttp/web_protocol.py

@@ -0,0 +1,746 @@
+import asyncio
+import asyncio.streams
+import sys
+import traceback
+import warnings
+from collections import deque
+from contextlib import suppress
+from html import escape as html_escape
+from http import HTTPStatus
+from logging import Logger
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Awaitable,
+    Callable,
+    Deque,
+    Optional,
+    Sequence,
+    Tuple,
+    Type,
+    Union,
+    cast,
+)
+
+import attr
+import yarl
+
+from .abc import AbstractAccessLogger, AbstractStreamWriter
+from .base_protocol import BaseProtocol
+from .helpers import ceil_timeout
+from .http import (
+    HttpProcessingError,
+    HttpRequestParser,
+    HttpVersion10,
+    RawRequestMessage,
+    StreamWriter,
+)
+from .http_exceptions import BadHttpMethod
+from .log import access_logger, server_logger
+from .streams import EMPTY_PAYLOAD, StreamReader
+from .tcp_helpers import tcp_keepalive
+from .web_exceptions import HTTPException, HTTPInternalServerError
+from .web_log import AccessLogger
+from .web_request import BaseRequest
+from .web_response import Response, StreamResponse
+
+__all__ = ("RequestHandler", "RequestPayloadError", "PayloadAccessError")
+
+if TYPE_CHECKING:
+    from .web_server import Server
+
+
+_RequestFactory = Callable[
+    [
+        RawRequestMessage,
+        StreamReader,
+        "RequestHandler",
+        AbstractStreamWriter,
+        "asyncio.Task[None]",
+    ],
+    BaseRequest,
+]
+
+_RequestHandler = Callable[[BaseRequest], Awaitable[StreamResponse]]
+
+ERROR = RawRequestMessage(
+    "UNKNOWN",
+    "/",
+    HttpVersion10,
+    {},  # type: ignore[arg-type]
+    {},  # type: ignore[arg-type]
+    True,
+    None,
+    False,
+    False,
+    yarl.URL("/"),
+)
+
+
+class RequestPayloadError(Exception):
+    """Payload parsing error."""
+
+
+class PayloadAccessError(Exception):
+    """Payload was accessed after response was sent."""
+
+
+_PAYLOAD_ACCESS_ERROR = PayloadAccessError()
+
+
+@attr.s(auto_attribs=True, frozen=True, slots=True)
+class _ErrInfo:
+    status: int
+    exc: BaseException
+    message: str
+
+
+_MsgType = Tuple[Union[RawRequestMessage, _ErrInfo], StreamReader]
+
+
+class RequestHandler(BaseProtocol):
+    """HTTP protocol implementation.
+
+    RequestHandler handles incoming HTTP request. It reads request line,
+    request headers and request payload and calls handle_request() method.
+    By default it always returns with 404 response.
+
+    RequestHandler handles errors in incoming request, like bad
+    status line, bad headers or incomplete payload. If any error occurs,
+    connection gets closed.
+
+    keepalive_timeout -- number of seconds before closing
+                         keep-alive connection
+
+    tcp_keepalive -- TCP keep-alive is on, default is on
+
+    debug -- enable debug mode
+
+    logger -- custom logger object
+
+    access_log_class -- custom class for access_logger
+
+    access_log -- custom logging object
+
+    access_log_format -- access log format string
+
+    loop -- Optional event loop
+
+    max_line_size -- Optional maximum header line size
+
+    max_field_size -- Optional maximum header field size
+
+    max_headers -- Optional maximum header size
+
+    timeout_ceil_threshold -- Optional value to specify
+                              threshold to ceil() timeout
+                              values
+
+    """
+
+    __slots__ = (
+        "_request_count",
+        "_keepalive",
+        "_manager",
+        "_request_handler",
+        "_request_factory",
+        "_tcp_keepalive",
+        "_next_keepalive_close_time",
+        "_keepalive_handle",
+        "_keepalive_timeout",
+        "_lingering_time",
+        "_messages",
+        "_message_tail",
+        "_handler_waiter",
+        "_waiter",
+        "_task_handler",
+        "_upgrade",
+        "_payload_parser",
+        "_request_parser",
+        "_reading_paused",
+        "logger",
+        "debug",
+        "access_log",
+        "access_logger",
+        "_close",
+        "_force_close",
+        "_current_request",
+        "_timeout_ceil_threshold",
+        "_request_in_progress",
+    )
+
+    def __init__(
+        self,
+        manager: "Server",
+        *,
+        loop: asyncio.AbstractEventLoop,
+        # Default should be high enough that it's likely longer than a reverse proxy.
+        keepalive_timeout: float = 3630,
+        tcp_keepalive: bool = True,
+        logger: Logger = server_logger,
+        access_log_class: Type[AbstractAccessLogger] = AccessLogger,
+        access_log: Logger = access_logger,
+        access_log_format: str = AccessLogger.LOG_FORMAT,
+        debug: bool = False,
+        max_line_size: int = 8190,
+        max_headers: int = 32768,
+        max_field_size: int = 8190,
+        lingering_time: float = 10.0,
+        read_bufsize: int = 2**16,
+        auto_decompress: bool = True,
+        timeout_ceil_threshold: float = 5,
+    ):
+        super().__init__(loop)
+
+        # _request_count is the number of requests processed with the same connection.
+        self._request_count = 0
+        self._keepalive = False
+        self._current_request: Optional[BaseRequest] = None
+        self._manager: Optional[Server] = manager
+        self._request_handler: Optional[_RequestHandler] = manager.request_handler
+        self._request_factory: Optional[_RequestFactory] = manager.request_factory
+
+        self._tcp_keepalive = tcp_keepalive
+        # placeholder to be replaced on keepalive timeout setup
+        self._next_keepalive_close_time = 0.0
+        self._keepalive_handle: Optional[asyncio.Handle] = None
+        self._keepalive_timeout = keepalive_timeout
+        self._lingering_time = float(lingering_time)
+
+        self._messages: Deque[_MsgType] = deque()
+        self._message_tail = b""
+
+        self._waiter: Optional[asyncio.Future[None]] = None
+        self._handler_waiter: Optional[asyncio.Future[None]] = None
+        self._task_handler: Optional[asyncio.Task[None]] = None
+
+        self._upgrade = False
+        self._payload_parser: Any = None
+        self._request_parser: Optional[HttpRequestParser] = HttpRequestParser(
+            self,
+            loop,
+            read_bufsize,
+            max_line_size=max_line_size,
+            max_field_size=max_field_size,
+            max_headers=max_headers,
+            payload_exception=RequestPayloadError,
+            auto_decompress=auto_decompress,
+        )
+
+        self._timeout_ceil_threshold: float = 5
+        try:
+            self._timeout_ceil_threshold = float(timeout_ceil_threshold)
+        except (TypeError, ValueError):
+            pass
+
+        self.logger = logger
+        self.debug = debug
+        self.access_log = access_log
+        if access_log:
+            self.access_logger: Optional[AbstractAccessLogger] = access_log_class(
+                access_log, access_log_format
+            )
+        else:
+            self.access_logger = None
+
+        self._close = False
+        self._force_close = False
+        self._request_in_progress = False
+
+    def __repr__(self) -> str:
+        return "<{} {}>".format(
+            self.__class__.__name__,
+            "connected" if self.transport is not None else "disconnected",
+        )
+
+    @property
+    def keepalive_timeout(self) -> float:
+        return self._keepalive_timeout
+
+    async def shutdown(self, timeout: Optional[float] = 15.0) -> None:
+        """Do worker process exit preparations.
+
+        We need to clean up everything and stop accepting requests.
+        It is especially important for keep-alive connections.
+        """
+        self._force_close = True
+
+        if self._keepalive_handle is not None:
+            self._keepalive_handle.cancel()
+
+        # Wait for graceful handler completion
+        if self._request_in_progress:
+            # The future is only created when we are shutting
+            # down while the handler is still processing a request
+            # to avoid creating a future for every request.
+            self._handler_waiter = self._loop.create_future()
+            try:
+                async with ceil_timeout(timeout):
+                    await self._handler_waiter
+            except (asyncio.CancelledError, asyncio.TimeoutError):
+                self._handler_waiter = None
+                if (
+                    sys.version_info >= (3, 11)
+                    and (task := asyncio.current_task())
+                    and task.cancelling()
+                ):
+                    raise
+        # Then cancel handler and wait
+        try:
+            async with ceil_timeout(timeout):
+                if self._current_request is not None:
+                    self._current_request._cancel(asyncio.CancelledError())
+
+                if self._task_handler is not None and not self._task_handler.done():
+                    await asyncio.shield(self._task_handler)
+        except (asyncio.CancelledError, asyncio.TimeoutError):
+            if (
+                sys.version_info >= (3, 11)
+                and (task := asyncio.current_task())
+                and task.cancelling()
+            ):
+                raise
+
+        # force-close non-idle handler
+        if self._task_handler is not None:
+            self._task_handler.cancel()
+
+        self.force_close()
+
+    def connection_made(self, transport: asyncio.BaseTransport) -> None:
+        super().connection_made(transport)
+
+        real_transport = cast(asyncio.Transport, transport)
+        if self._tcp_keepalive:
+            tcp_keepalive(real_transport)
+
+        assert self._manager is not None
+        self._manager.connection_made(self, real_transport)
+
+        loop = self._loop
+        if sys.version_info >= (3, 12):
+            task = asyncio.Task(self.start(), loop=loop, eager_start=True)
+        else:
+            task = loop.create_task(self.start())
+        self._task_handler = task
+
+    def connection_lost(self, exc: Optional[BaseException]) -> None:
+        if self._manager is None:
+            return
+        self._manager.connection_lost(self, exc)
+
+        # Grab value before setting _manager to None.
+        handler_cancellation = self._manager.handler_cancellation
+
+        self.force_close()
+        super().connection_lost(exc)
+        self._manager = None
+        self._request_factory = None
+        self._request_handler = None
+        self._request_parser = None
+
+        if self._keepalive_handle is not None:
+            self._keepalive_handle.cancel()
+
+        if self._current_request is not None:
+            if exc is None:
+                exc = ConnectionResetError("Connection lost")
+            self._current_request._cancel(exc)
+
+        if handler_cancellation and self._task_handler is not None:
+            self._task_handler.cancel()
+
+        self._task_handler = None
+
+        if self._payload_parser is not None:
+            self._payload_parser.feed_eof()
+            self._payload_parser = None
+
+    def set_parser(self, parser: Any) -> None:
+        # Actual type is WebReader
+        assert self._payload_parser is None
+
+        self._payload_parser = parser
+
+        if self._message_tail:
+            self._payload_parser.feed_data(self._message_tail)
+            self._message_tail = b""
+
+    def eof_received(self) -> None:
+        pass
+
+    def data_received(self, data: bytes) -> None:
+        if self._force_close or self._close:
+            return
+        # parse http messages
+        messages: Sequence[_MsgType]
+        if self._payload_parser is None and not self._upgrade:
+            assert self._request_parser is not None
+            try:
+                messages, upgraded, tail = self._request_parser.feed_data(data)
+            except HttpProcessingError as exc:
+                messages = [
+                    (_ErrInfo(status=400, exc=exc, message=exc.message), EMPTY_PAYLOAD)
+                ]
+                upgraded = False
+                tail = b""
+
+            for msg, payload in messages or ():
+                self._request_count += 1
+                self._messages.append((msg, payload))
+
+            waiter = self._waiter
+            if messages and waiter is not None and not waiter.done():
+                # don't set result twice
+                waiter.set_result(None)
+
+            self._upgrade = upgraded
+            if upgraded and tail:
+                self._message_tail = tail
+
+        # no parser, just store
+        elif self._payload_parser is None and self._upgrade and data:
+            self._message_tail += data
+
+        # feed payload
+        elif data:
+            eof, tail = self._payload_parser.feed_data(data)
+            if eof:
+                self.close()
+
+    def keep_alive(self, val: bool) -> None:
+        """Set keep-alive connection mode.
+
+        :param bool val: new state.
+        """
+        self._keepalive = val
+        if self._keepalive_handle:
+            self._keepalive_handle.cancel()
+            self._keepalive_handle = None
+
+    def close(self) -> None:
+        """Close connection.
+
+        Stop accepting new pipelining messages and close
+        connection when handlers done processing messages.
+        """
+        self._close = True
+        if self._waiter:
+            self._waiter.cancel()
+
+    def force_close(self) -> None:
+        """Forcefully close connection."""
+        self._force_close = True
+        if self._waiter:
+            self._waiter.cancel()
+        if self.transport is not None:
+            self.transport.close()
+            self.transport = None
+
+    def log_access(
+        self, request: BaseRequest, response: StreamResponse, time: float
+    ) -> None:
+        if self.access_logger is not None and self.access_logger.enabled:
+            self.access_logger.log(request, response, self._loop.time() - time)
+
+    def log_debug(self, *args: Any, **kw: Any) -> None:
+        if self.debug:
+            self.logger.debug(*args, **kw)
+
+    def log_exception(self, *args: Any, **kw: Any) -> None:
+        self.logger.exception(*args, **kw)
+
+    def _process_keepalive(self) -> None:
+        self._keepalive_handle = None
+        if self._force_close or not self._keepalive:
+            return
+
+        loop = self._loop
+        now = loop.time()
+        close_time = self._next_keepalive_close_time
+        if now <= close_time:
+            # Keep alive close check fired too early, reschedule
+            self._keepalive_handle = loop.call_at(close_time, self._process_keepalive)
+            return
+
+        # handler in idle state
+        if self._waiter and not self._waiter.done():
+            self.force_close()
+
+    async def _handle_request(
+        self,
+        request: BaseRequest,
+        start_time: float,
+        request_handler: Callable[[BaseRequest], Awaitable[StreamResponse]],
+    ) -> Tuple[StreamResponse, bool]:
+        self._request_in_progress = True
+        try:
+            try:
+                self._current_request = request
+                resp = await request_handler(request)
+            finally:
+                self._current_request = None
+        except HTTPException as exc:
+            resp = exc
+            resp, reset = await self.finish_response(request, resp, start_time)
+        except asyncio.CancelledError:
+            raise
+        except asyncio.TimeoutError as exc:
+            self.log_debug("Request handler timed out.", exc_info=exc)
+            resp = self.handle_error(request, 504)
+            resp, reset = await self.finish_response(request, resp, start_time)
+        except Exception as exc:
+            resp = self.handle_error(request, 500, exc)
+            resp, reset = await self.finish_response(request, resp, start_time)
+        else:
+            # Deprecation warning (See #2415)
+            if getattr(resp, "__http_exception__", False):
+                warnings.warn(
+                    "returning HTTPException object is deprecated "
+                    "(#2415) and will be removed, "
+                    "please raise the exception instead",
+                    DeprecationWarning,
+                )
+
+            resp, reset = await self.finish_response(request, resp, start_time)
+        finally:
+            self._request_in_progress = False
+            if self._handler_waiter is not None:
+                self._handler_waiter.set_result(None)
+
+        return resp, reset
+
+    async def start(self) -> None:
+        """Process incoming request.
+
+        It reads request line, request headers and request payload, then
+        calls handle_request() method. Subclass has to override
+        handle_request(). start() handles various exceptions in request
+        or response handling. Connection is being closed always unless
+        keep_alive(True) specified.
+        """
+        loop = self._loop
+        handler = asyncio.current_task(loop)
+        assert handler is not None
+        manager = self._manager
+        assert manager is not None
+        keepalive_timeout = self._keepalive_timeout
+        resp = None
+        assert self._request_factory is not None
+        assert self._request_handler is not None
+
+        while not self._force_close:
+            if not self._messages:
+                try:
+                    # wait for next request
+                    self._waiter = loop.create_future()
+                    await self._waiter
+                finally:
+                    self._waiter = None
+
+            message, payload = self._messages.popleft()
+
+            start = loop.time()
+
+            manager.requests_count += 1
+            writer = StreamWriter(self, loop)
+            if isinstance(message, _ErrInfo):
+                # make request_factory work
+                request_handler = self._make_error_handler(message)
+                message = ERROR
+            else:
+                request_handler = self._request_handler
+
+            request = self._request_factory(message, payload, self, writer, handler)
+            try:
+                # a new task is used for copy context vars (#3406)
+                coro = self._handle_request(request, start, request_handler)
+                if sys.version_info >= (3, 12):
+                    task = asyncio.Task(coro, loop=loop, eager_start=True)
+                else:
+                    task = loop.create_task(coro)
+                try:
+                    resp, reset = await task
+                except ConnectionError:
+                    self.log_debug("Ignored premature client disconnection")
+                    break
+
+                # Drop the processed task from asyncio.Task.all_tasks() early
+                del task
+                if reset:
+                    self.log_debug("Ignored premature client disconnection 2")
+                    break
+
+                # notify server about keep-alive
+                self._keepalive = bool(resp.keep_alive)
+
+                # check payload
+                if not payload.is_eof():
+                    lingering_time = self._lingering_time
+                    if not self._force_close and lingering_time:
+                        self.log_debug(
+                            "Start lingering close timer for %s sec.", lingering_time
+                        )
+
+                        now = loop.time()
+                        end_t = now + lingering_time
+
+                        try:
+                            while not payload.is_eof() and now < end_t:
+                                async with ceil_timeout(end_t - now):
+                                    # read and ignore
+                                    await payload.readany()
+                                now = loop.time()
+                        except (asyncio.CancelledError, asyncio.TimeoutError):
+                            if (
+                                sys.version_info >= (3, 11)
+                                and (t := asyncio.current_task())
+                                and t.cancelling()
+                            ):
+                                raise
+
+                    # if payload still uncompleted
+                    if not payload.is_eof() and not self._force_close:
+                        self.log_debug("Uncompleted request.")
+                        self.close()
+
+                payload.set_exception(_PAYLOAD_ACCESS_ERROR)
+
+            except asyncio.CancelledError:
+                self.log_debug("Ignored premature client disconnection")
+                raise
+            except Exception as exc:
+                self.log_exception("Unhandled exception", exc_info=exc)
+                self.force_close()
+            finally:
+                if self.transport is None and resp is not None:
+                    self.log_debug("Ignored premature client disconnection.")
+                elif not self._force_close:
+                    if self._keepalive and not self._close:
+                        # start keep-alive timer
+                        if keepalive_timeout is not None:
+                            now = loop.time()
+                            close_time = now + keepalive_timeout
+                            self._next_keepalive_close_time = close_time
+                            if self._keepalive_handle is None:
+                                self._keepalive_handle = loop.call_at(
+                                    close_time, self._process_keepalive
+                                )
+                    else:
+                        break
+
+        # remove handler, close transport if no handlers left
+        if not self._force_close:
+            self._task_handler = None
+            if self.transport is not None:
+                self.transport.close()
+
+    async def finish_response(
+        self, request: BaseRequest, resp: StreamResponse, start_time: float
+    ) -> Tuple[StreamResponse, bool]:
+        """Prepare the response and write_eof, then log access.
+
+        This has to
+        be called within the context of any exception so the access logger
+        can get exception information. Returns True if the client disconnects
+        prematurely.
+        """
+        request._finish()
+        if self._request_parser is not None:
+            self._request_parser.set_upgraded(False)
+            self._upgrade = False
+            if self._message_tail:
+                self._request_parser.feed_data(self._message_tail)
+                self._message_tail = b""
+        try:
+            prepare_meth = resp.prepare
+        except AttributeError:
+            if resp is None:
+                self.log_exception("Missing return statement on request handler")
+            else:
+                self.log_exception(
+                    "Web-handler should return a response instance, "
+                    "got {!r}".format(resp)
+                )
+            exc = HTTPInternalServerError()
+            resp = Response(
+                status=exc.status, reason=exc.reason, text=exc.text, headers=exc.headers
+            )
+            prepare_meth = resp.prepare
+        try:
+            await prepare_meth(request)
+            await resp.write_eof()
+        except ConnectionError:
+            self.log_access(request, resp, start_time)
+            return resp, True
+
+        self.log_access(request, resp, start_time)
+        return resp, False
+
+    def handle_error(
+        self,
+        request: BaseRequest,
+        status: int = 500,
+        exc: Optional[BaseException] = None,
+        message: Optional[str] = None,
+    ) -> StreamResponse:
+        """Handle errors.
+
+        Returns HTTP response with specific status code. Logs additional
+        information. It always closes current connection.
+        """
+        if self._request_count == 1 and isinstance(exc, BadHttpMethod):
+            # BadHttpMethod is common when a client sends non-HTTP
+            # or encrypted traffic to an HTTP port. This is expected
+            # to happen when connected to the public internet so we log
+            # it at the debug level as to not fill logs with noise.
+            self.logger.debug("Error handling request", exc_info=exc)
+        else:
+            self.log_exception("Error handling request", exc_info=exc)
+
+        # some data already got sent, connection is broken
+        if request.writer.output_size > 0:
+            raise ConnectionError(
+                "Response is sent already, cannot send another response "
+                "with the error message"
+            )
+
+        ct = "text/plain"
+        if status == HTTPStatus.INTERNAL_SERVER_ERROR:
+            title = "{0.value} {0.phrase}".format(HTTPStatus.INTERNAL_SERVER_ERROR)
+            msg = HTTPStatus.INTERNAL_SERVER_ERROR.description
+            tb = None
+            if self.debug:
+                with suppress(Exception):
+                    tb = traceback.format_exc()
+
+            if "text/html" in request.headers.get("Accept", ""):
+                if tb:
+                    tb = html_escape(tb)
+                    msg = f"<h2>Traceback:</h2>\n<pre>{tb}</pre>"
+                message = (
+                    "<html><head>"
+                    "<title>{title}</title>"
+                    "</head><body>\n<h1>{title}</h1>"
+                    "\n{msg}\n</body></html>\n"
+                ).format(title=title, msg=msg)
+                ct = "text/html"
+            else:
+                if tb:
+                    msg = tb
+                message = title + "\n\n" + msg
+
+        resp = Response(status=status, text=message, content_type=ct)
+        resp.force_close()
+
+        return resp
+
+    def _make_error_handler(
+        self, err_info: _ErrInfo
+    ) -> Callable[[BaseRequest], Awaitable[StreamResponse]]:
+        async def handler(request: BaseRequest) -> StreamResponse:
+            return self.handle_error(
+                request, err_info.status, err_info.exc, err_info.message
+            )
+
+        return handler

deepseek/lib/python3.10/site-packages/aiohttp/web_request.py

@@ -0,0 +1,916 @@
+import asyncio
+import datetime
+import io
+import re
+import socket
+import string
+import tempfile
+import types
+import warnings
+from http.cookies import SimpleCookie
+from types import MappingProxyType
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Dict,
+    Final,
+    Iterator,
+    Mapping,
+    MutableMapping,
+    Optional,
+    Pattern,
+    Tuple,
+    Union,
+    cast,
+)
+from urllib.parse import parse_qsl
+
+import attr
+from multidict import (
+    CIMultiDict,
+    CIMultiDictProxy,
+    MultiDict,
+    MultiDictProxy,
+    MultiMapping,
+)
+from yarl import URL
+
+from . import hdrs
+from .abc import AbstractStreamWriter
+from .helpers import (
+    _SENTINEL,
+    DEBUG,
+    ETAG_ANY,
+    LIST_QUOTED_ETAG_RE,
+    ChainMapProxy,
+    ETag,
+    HeadersMixin,
+    parse_http_date,
+    reify,
+    sentinel,
+    set_exception,
+)
+from .http_parser import RawRequestMessage
+from .http_writer import HttpVersion
+from .multipart import BodyPartReader, MultipartReader
+from .streams import EmptyStreamReader, StreamReader
+from .typedefs import (
+    DEFAULT_JSON_DECODER,
+    JSONDecoder,
+    LooseHeaders,
+    RawHeaders,
+    StrOrURL,
+)
+from .web_exceptions import HTTPRequestEntityTooLarge
+from .web_response import StreamResponse
+
+__all__ = ("BaseRequest", "FileField", "Request")
+
+
+if TYPE_CHECKING:
+    from .web_app import Application
+    from .web_protocol import RequestHandler
+    from .web_urldispatcher import UrlMappingMatchInfo
+
+
+@attr.s(auto_attribs=True, frozen=True, slots=True)
+class FileField:
+    name: str
+    filename: str
+    file: io.BufferedReader
+    content_type: str
+    headers: CIMultiDictProxy[str]
+
+
+_TCHAR: Final[str] = string.digits + string.ascii_letters + r"!#$%&'*+.^_`|~-"
+# '-' at the end to prevent interpretation as range in a char class
+
+_TOKEN: Final[str] = rf"[{_TCHAR}]+"
+
+_QDTEXT: Final[str] = r"[{}]".format(
+    r"".join(chr(c) for c in (0x09, 0x20, 0x21) + tuple(range(0x23, 0x7F)))
+)
+# qdtext includes 0x5C to escape 0x5D ('\]')
+# qdtext excludes obs-text (because obsoleted, and encoding not specified)
+
+_QUOTED_PAIR: Final[str] = r"\\[\t !-~]"
+
+_QUOTED_STRING: Final[str] = r'"(?:{quoted_pair}|{qdtext})*"'.format(
+    qdtext=_QDTEXT, quoted_pair=_QUOTED_PAIR
+)
+
+_FORWARDED_PAIR: Final[str] = (
+    r"({token})=({token}|{quoted_string})(:\d{{1,4}})?".format(
+        token=_TOKEN, quoted_string=_QUOTED_STRING
+    )
+)
+
+_QUOTED_PAIR_REPLACE_RE: Final[Pattern[str]] = re.compile(r"\\([\t !-~])")
+# same pattern as _QUOTED_PAIR but contains a capture group
+
+_FORWARDED_PAIR_RE: Final[Pattern[str]] = re.compile(_FORWARDED_PAIR)
+
+############################################################
+# HTTP Request
+############################################################
+
+
+class BaseRequest(MutableMapping[str, Any], HeadersMixin):
+
+    POST_METHODS = {
+        hdrs.METH_PATCH,
+        hdrs.METH_POST,
+        hdrs.METH_PUT,
+        hdrs.METH_TRACE,
+        hdrs.METH_DELETE,
+    }
+
+    ATTRS = HeadersMixin.ATTRS | frozenset(
+        [
+            "_message",
+            "_protocol",
+            "_payload_writer",
+            "_payload",
+            "_headers",
+            "_method",
+            "_version",
+            "_rel_url",
+            "_post",
+            "_read_bytes",
+            "_state",
+            "_cache",
+            "_task",
+            "_client_max_size",
+            "_loop",
+            "_transport_sslcontext",
+            "_transport_peername",
+        ]
+    )
+    _post: Optional[MultiDictProxy[Union[str, bytes, FileField]]] = None
+    _read_bytes: Optional[bytes] = None
+
+    def __init__(
+        self,
+        message: RawRequestMessage,
+        payload: StreamReader,
+        protocol: "RequestHandler",
+        payload_writer: AbstractStreamWriter,
+        task: "asyncio.Task[None]",
+        loop: asyncio.AbstractEventLoop,
+        *,
+        client_max_size: int = 1024**2,
+        state: Optional[Dict[str, Any]] = None,
+        scheme: Optional[str] = None,
+        host: Optional[str] = None,
+        remote: Optional[str] = None,
+    ) -> None:
+        self._message = message
+        self._protocol = protocol
+        self._payload_writer = payload_writer
+
+        self._payload = payload
+        self._headers: CIMultiDictProxy[str] = message.headers
+        self._method = message.method
+        self._version = message.version
+        self._cache: Dict[str, Any] = {}
+        url = message.url
+        if url.absolute:
+            if scheme is not None:
+                url = url.with_scheme(scheme)
+            if host is not None:
+                url = url.with_host(host)
+            # absolute URL is given,
+            # override auto-calculating url, host, and scheme
+            # all other properties should be good
+            self._cache["url"] = url
+            self._cache["host"] = url.host
+            self._cache["scheme"] = url.scheme
+            self._rel_url = url.relative()
+        else:
+            self._rel_url = url
+            if scheme is not None:
+                self._cache["scheme"] = scheme
+            if host is not None:
+                self._cache["host"] = host
+
+        self._state = {} if state is None else state
+        self._task = task
+        self._client_max_size = client_max_size
+        self._loop = loop
+
+        transport = protocol.transport
+        assert transport is not None
+        self._transport_sslcontext = transport.get_extra_info("sslcontext")
+        self._transport_peername = transport.get_extra_info("peername")
+
+        if remote is not None:
+            self._cache["remote"] = remote
+
+    def clone(
+        self,
+        *,
+        method: Union[str, _SENTINEL] = sentinel,
+        rel_url: Union[StrOrURL, _SENTINEL] = sentinel,
+        headers: Union[LooseHeaders, _SENTINEL] = sentinel,
+        scheme: Union[str, _SENTINEL] = sentinel,
+        host: Union[str, _SENTINEL] = sentinel,
+        remote: Union[str, _SENTINEL] = sentinel,
+        client_max_size: Union[int, _SENTINEL] = sentinel,
+    ) -> "BaseRequest":
+        """Clone itself with replacement some attributes.
+
+        Creates and returns a new instance of Request object. If no parameters
+        are given, an exact copy is returned. If a parameter is not passed, it
+        will reuse the one from the current request object.
+        """
+        if self._read_bytes:
+            raise RuntimeError("Cannot clone request after reading its content")
+
+        dct: Dict[str, Any] = {}
+        if method is not sentinel:
+            dct["method"] = method
+        if rel_url is not sentinel:
+            new_url: URL = URL(rel_url)
+            dct["url"] = new_url
+            dct["path"] = str(new_url)
+        if headers is not sentinel:
+            # a copy semantic
+            dct["headers"] = CIMultiDictProxy(CIMultiDict(headers))
+            dct["raw_headers"] = tuple(
+                (k.encode("utf-8"), v.encode("utf-8"))
+                for k, v in dct["headers"].items()
+            )
+
+        message = self._message._replace(**dct)
+
+        kwargs = {}
+        if scheme is not sentinel:
+            kwargs["scheme"] = scheme
+        if host is not sentinel:
+            kwargs["host"] = host
+        if remote is not sentinel:
+            kwargs["remote"] = remote
+        if client_max_size is sentinel:
+            client_max_size = self._client_max_size
+
+        return self.__class__(
+            message,
+            self._payload,
+            self._protocol,
+            self._payload_writer,
+            self._task,
+            self._loop,
+            client_max_size=client_max_size,
+            state=self._state.copy(),
+            **kwargs,
+        )
+
+    @property
+    def task(self) -> "asyncio.Task[None]":
+        return self._task
+
+    @property
+    def protocol(self) -> "RequestHandler":
+        return self._protocol
+
+    @property
+    def transport(self) -> Optional[asyncio.Transport]:
+        if self._protocol is None:
+            return None
+        return self._protocol.transport
+
+    @property
+    def writer(self) -> AbstractStreamWriter:
+        return self._payload_writer
+
+    @property
+    def client_max_size(self) -> int:
+        return self._client_max_size
+
+    @reify
+    def message(self) -> RawRequestMessage:
+        warnings.warn("Request.message is deprecated", DeprecationWarning, stacklevel=3)
+        return self._message
+
+    @reify
+    def rel_url(self) -> URL:
+        return self._rel_url
+
+    @reify
+    def loop(self) -> asyncio.AbstractEventLoop:
+        warnings.warn(
+            "request.loop property is deprecated", DeprecationWarning, stacklevel=2
+        )
+        return self._loop
+
+    # MutableMapping API
+
+    def __getitem__(self, key: str) -> Any:
+        return self._state[key]
+
+    def __setitem__(self, key: str, value: Any) -> None:
+        self._state[key] = value
+
+    def __delitem__(self, key: str) -> None:
+        del self._state[key]
+
+    def __len__(self) -> int:
+        return len(self._state)
+
+    def __iter__(self) -> Iterator[str]:
+        return iter(self._state)
+
+    ########
+
+    @reify
+    def secure(self) -> bool:
+        """A bool indicating if the request is handled with SSL."""
+        return self.scheme == "https"
+
+    @reify
+    def forwarded(self) -> Tuple[Mapping[str, str], ...]:
+        """A tuple containing all parsed Forwarded header(s).
+
+        Makes an effort to parse Forwarded headers as specified by RFC 7239:
+
+        - It adds one (immutable) dictionary per Forwarded 'field-value', ie
+          per proxy. The element corresponds to the data in the Forwarded
+          field-value added by the first proxy encountered by the client. Each
+          subsequent item corresponds to those added by later proxies.
+        - It checks that every value has valid syntax in general as specified
+          in section 4: either a 'token' or a 'quoted-string'.
+        - It un-escapes found escape sequences.
+        - It does NOT validate 'by' and 'for' contents as specified in section
+          6.
+        - It does NOT validate 'host' contents (Host ABNF).
+        - It does NOT validate 'proto' contents for valid URI scheme names.
+
+        Returns a tuple containing one or more immutable dicts
+        """
+        elems = []
+        for field_value in self._message.headers.getall(hdrs.FORWARDED, ()):
+            length = len(field_value)
+            pos = 0
+            need_separator = False
+            elem: Dict[str, str] = {}
+            elems.append(types.MappingProxyType(elem))
+            while 0 <= pos < length:
+                match = _FORWARDED_PAIR_RE.match(field_value, pos)
+                if match is not None:  # got a valid forwarded-pair
+                    if need_separator:
+                        # bad syntax here, skip to next comma
+                        pos = field_value.find(",", pos)
+                    else:
+                        name, value, port = match.groups()
+                        if value[0] == '"':
+                            # quoted string: remove quotes and unescape
+                            value = _QUOTED_PAIR_REPLACE_RE.sub(r"\1", value[1:-1])
+                        if port:
+                            value += port
+                        elem[name.lower()] = value
+                        pos += len(match.group(0))
+                        need_separator = True
+                elif field_value[pos] == ",":  # next forwarded-element
+                    need_separator = False
+                    elem = {}
+                    elems.append(types.MappingProxyType(elem))
+                    pos += 1
+                elif field_value[pos] == ";":  # next forwarded-pair
+                    need_separator = False
+                    pos += 1
+                elif field_value[pos] in " \t":
+                    # Allow whitespace even between forwarded-pairs, though
+                    # RFC 7239 doesn't. This simplifies code and is in line
+                    # with Postel's law.
+                    pos += 1
+                else:
+                    # bad syntax here, skip to next comma
+                    pos = field_value.find(",", pos)
+        return tuple(elems)
+
+    @reify
+    def scheme(self) -> str:
+        """A string representing the scheme of the request.
+
+        Hostname is resolved in this order:
+
+        - overridden value by .clone(scheme=new_scheme) call.
+        - type of connection to peer: HTTPS if socket is SSL, HTTP otherwise.
+
+        'http' or 'https'.
+        """
+        if self._transport_sslcontext:
+            return "https"
+        else:
+            return "http"
+
+    @reify
+    def method(self) -> str:
+        """Read only property for getting HTTP method.
+
+        The value is upper-cased str like 'GET', 'POST', 'PUT' etc.
+        """
+        return self._method
+
+    @reify
+    def version(self) -> HttpVersion:
+        """Read only property for getting HTTP version of request.
+
+        Returns aiohttp.protocol.HttpVersion instance.
+        """
+        return self._version
+
+    @reify
+    def host(self) -> str:
+        """Hostname of the request.
+
+        Hostname is resolved in this order:
+
+        - overridden value by .clone(host=new_host) call.
+        - HOST HTTP header
+        - socket.getfqdn() value
+
+        For example, 'example.com' or 'localhost:8080'.
+
+        For historical reasons, the port number may be included.
+        """
+        host = self._message.headers.get(hdrs.HOST)
+        if host is not None:
+            return host
+        return socket.getfqdn()
+
+    @reify
+    def remote(self) -> Optional[str]:
+        """Remote IP of client initiated HTTP request.
+
+        The IP is resolved in this order:
+
+        - overridden value by .clone(remote=new_remote) call.
+        - peername of opened socket
+        """
+        if self._transport_peername is None:
+            return None
+        if isinstance(self._transport_peername, (list, tuple)):
+            return str(self._transport_peername[0])
+        return str(self._transport_peername)
+
+    @reify
+    def url(self) -> URL:
+        """The full URL of the request."""
+        # authority is used here because it may include the port number
+        # and we want yarl to parse it correctly
+        return URL.build(scheme=self.scheme, authority=self.host).join(self._rel_url)
+
+    @reify
+    def path(self) -> str:
+        """The URL including *PATH INFO* without the host or scheme.
+
+        E.g., ``/app/blog``
+        """
+        return self._rel_url.path
+
+    @reify
+    def path_qs(self) -> str:
+        """The URL including PATH_INFO and the query string.
+
+        E.g, /app/blog?id=10
+        """
+        return str(self._rel_url)
+
+    @reify
+    def raw_path(self) -> str:
+        """The URL including raw *PATH INFO* without the host or scheme.
+
+        Warning, the path is unquoted and may contains non valid URL characters
+
+        E.g., ``/my%2Fpath%7Cwith%21some%25strange%24characters``
+        """
+        return self._message.path
+
+    @reify
+    def query(self) -> "MultiMapping[str]":
+        """A multidict with all the variables in the query string."""
+        return self._rel_url.query
+
+    @reify
+    def query_string(self) -> str:
+        """The query string in the URL.
+
+        E.g., id=10
+        """
+        return self._rel_url.query_string
+
+    @reify
+    def headers(self) -> CIMultiDictProxy[str]:
+        """A case-insensitive multidict proxy with all headers."""
+        return self._headers
+
+    @reify
+    def raw_headers(self) -> RawHeaders:
+        """A sequence of pairs for all headers."""
+        return self._message.raw_headers
+
+    @reify
+    def if_modified_since(self) -> Optional[datetime.datetime]:
+        """The value of If-Modified-Since HTTP header, or None.
+
+        This header is represented as a `datetime` object.
+        """
+        return parse_http_date(self.headers.get(hdrs.IF_MODIFIED_SINCE))
+
+    @reify
+    def if_unmodified_since(self) -> Optional[datetime.datetime]:
+        """The value of If-Unmodified-Since HTTP header, or None.
+
+        This header is represented as a `datetime` object.
+        """
+        return parse_http_date(self.headers.get(hdrs.IF_UNMODIFIED_SINCE))
+
+    @staticmethod
+    def _etag_values(etag_header: str) -> Iterator[ETag]:
+        """Extract `ETag` objects from raw header."""
+        if etag_header == ETAG_ANY:
+            yield ETag(
+                is_weak=False,
+                value=ETAG_ANY,
+            )
+        else:
+            for match in LIST_QUOTED_ETAG_RE.finditer(etag_header):
+                is_weak, value, garbage = match.group(2, 3, 4)
+                # Any symbol captured by 4th group means
+                # that the following sequence is invalid.
+                if garbage:
+                    break
+
+                yield ETag(
+                    is_weak=bool(is_weak),
+                    value=value,
+                )
+
+    @classmethod
+    def _if_match_or_none_impl(
+        cls, header_value: Optional[str]
+    ) -> Optional[Tuple[ETag, ...]]:
+        if not header_value:
+            return None
+
+        return tuple(cls._etag_values(header_value))
+
+    @reify
+    def if_match(self) -> Optional[Tuple[ETag, ...]]:
+        """The value of If-Match HTTP header, or None.
+
+        This header is represented as a `tuple` of `ETag` objects.
+        """
+        return self._if_match_or_none_impl(self.headers.get(hdrs.IF_MATCH))
+
+    @reify
+    def if_none_match(self) -> Optional[Tuple[ETag, ...]]:
+        """The value of If-None-Match HTTP header, or None.
+
+        This header is represented as a `tuple` of `ETag` objects.
+        """
+        return self._if_match_or_none_impl(self.headers.get(hdrs.IF_NONE_MATCH))
+
+    @reify
+    def if_range(self) -> Optional[datetime.datetime]:
+        """The value of If-Range HTTP header, or None.
+
+        This header is represented as a `datetime` object.
+        """
+        return parse_http_date(self.headers.get(hdrs.IF_RANGE))
+
+    @reify
+    def keep_alive(self) -> bool:
+        """Is keepalive enabled by client?"""
+        return not self._message.should_close
+
+    @reify
+    def cookies(self) -> Mapping[str, str]:
+        """Return request cookies.
+
+        A read-only dictionary-like object.
+        """
+        raw = self.headers.get(hdrs.COOKIE, "")
+        parsed = SimpleCookie(raw)
+        return MappingProxyType({key: val.value for key, val in parsed.items()})
+
+    @reify
+    def http_range(self) -> slice:
+        """The content of Range HTTP header.
+
+        Return a slice instance.
+
+        """
+        rng = self._headers.get(hdrs.RANGE)
+        start, end = None, None
+        if rng is not None:
+            try:
+                pattern = r"^bytes=(\d*)-(\d*)$"
+                start, end = re.findall(pattern, rng)[0]
+            except IndexError:  # pattern was not found in header
+                raise ValueError("range not in acceptable format")
+
+            end = int(end) if end else None
+            start = int(start) if start else None
+
+            if start is None and end is not None:
+                # end with no start is to return tail of content
+                start = -end
+                end = None
+
+            if start is not None and end is not None:
+                # end is inclusive in range header, exclusive for slice
+                end += 1
+
+                if start >= end:
+                    raise ValueError("start cannot be after end")
+
+            if start is end is None:  # No valid range supplied
+                raise ValueError("No start or end of range specified")
+
+        return slice(start, end, 1)
+
+    @reify
+    def content(self) -> StreamReader:
+        """Return raw payload stream."""
+        return self._payload
+
+    @property
+    def has_body(self) -> bool:
+        """Return True if request's HTTP BODY can be read, False otherwise."""
+        warnings.warn(
+            "Deprecated, use .can_read_body #2005", DeprecationWarning, stacklevel=2
+        )
+        return not self._payload.at_eof()
+
+    @property
+    def can_read_body(self) -> bool:
+        """Return True if request's HTTP BODY can be read, False otherwise."""
+        return not self._payload.at_eof()
+
+    @reify
+    def body_exists(self) -> bool:
+        """Return True if request has HTTP BODY, False otherwise."""
+        return type(self._payload) is not EmptyStreamReader
+
+    async def release(self) -> None:
+        """Release request.
+
+        Eat unread part of HTTP BODY if present.
+        """
+        while not self._payload.at_eof():
+            await self._payload.readany()
+
+    async def read(self) -> bytes:
+        """Read request body if present.
+
+        Returns bytes object with full request content.
+        """
+        if self._read_bytes is None:
+            body = bytearray()
+            while True:
+                chunk = await self._payload.readany()
+                body.extend(chunk)
+                if self._client_max_size:
+                    body_size = len(body)
+                    if body_size >= self._client_max_size:
+                        raise HTTPRequestEntityTooLarge(
+                            max_size=self._client_max_size, actual_size=body_size
+                        )
+                if not chunk:
+                    break
+            self._read_bytes = bytes(body)
+        return self._read_bytes
+
+    async def text(self) -> str:
+        """Return BODY as text using encoding from .charset."""
+        bytes_body = await self.read()
+        encoding = self.charset or "utf-8"
+        return bytes_body.decode(encoding)
+
+    async def json(self, *, loads: JSONDecoder = DEFAULT_JSON_DECODER) -> Any:
+        """Return BODY as JSON."""
+        body = await self.text()
+        return loads(body)
+
+    async def multipart(self) -> MultipartReader:
+        """Return async iterator to process BODY as multipart."""
+        return MultipartReader(self._headers, self._payload)
+
+    async def post(self) -> "MultiDictProxy[Union[str, bytes, FileField]]":
+        """Return POST parameters."""
+        if self._post is not None:
+            return self._post
+        if self._method not in self.POST_METHODS:
+            self._post = MultiDictProxy(MultiDict())
+            return self._post
+
+        content_type = self.content_type
+        if content_type not in (
+            "",
+            "application/x-www-form-urlencoded",
+            "multipart/form-data",
+        ):
+            self._post = MultiDictProxy(MultiDict())
+            return self._post
+
+        out: MultiDict[Union[str, bytes, FileField]] = MultiDict()
+
+        if content_type == "multipart/form-data":
+            multipart = await self.multipart()
+            max_size = self._client_max_size
+
+            field = await multipart.next()
+            while field is not None:
+                size = 0
+                field_ct = field.headers.get(hdrs.CONTENT_TYPE)
+
+                if isinstance(field, BodyPartReader):
+                    assert field.name is not None
+
+                    # Note that according to RFC 7578, the Content-Type header
+                    # is optional, even for files, so we can't assume it's
+                    # present.
+                    # https://tools.ietf.org/html/rfc7578#section-4.4
+                    if field.filename:
+                        # store file in temp file
+                        tmp = await self._loop.run_in_executor(
+                            None, tempfile.TemporaryFile
+                        )
+                        chunk = await field.read_chunk(size=2**16)
+                        while chunk:
+                            chunk = field.decode(chunk)
+                            await self._loop.run_in_executor(None, tmp.write, chunk)
+                            size += len(chunk)
+                            if 0 < max_size < size:
+                                await self._loop.run_in_executor(None, tmp.close)
+                                raise HTTPRequestEntityTooLarge(
+                                    max_size=max_size, actual_size=size
+                                )
+                            chunk = await field.read_chunk(size=2**16)
+                        await self._loop.run_in_executor(None, tmp.seek, 0)
+
+                        if field_ct is None:
+                            field_ct = "application/octet-stream"
+
+                        ff = FileField(
+                            field.name,
+                            field.filename,
+                            cast(io.BufferedReader, tmp),
+                            field_ct,
+                            field.headers,
+                        )
+                        out.add(field.name, ff)
+                    else:
+                        # deal with ordinary data
+                        value = await field.read(decode=True)
+                        if field_ct is None or field_ct.startswith("text/"):
+                            charset = field.get_charset(default="utf-8")
+                            out.add(field.name, value.decode(charset))
+                        else:
+                            out.add(field.name, value)
+                        size += len(value)
+                        if 0 < max_size < size:
+                            raise HTTPRequestEntityTooLarge(
+                                max_size=max_size, actual_size=size
+                            )
+                else:
+                    raise ValueError(
+                        "To decode nested multipart you need to use custom reader",
+                    )
+
+                field = await multipart.next()
+        else:
+            data = await self.read()
+            if data:
+                charset = self.charset or "utf-8"
+                out.extend(
+                    parse_qsl(
+                        data.rstrip().decode(charset),
+                        keep_blank_values=True,
+                        encoding=charset,
+                    )
+                )
+
+        self._post = MultiDictProxy(out)
+        return self._post
+
+    def get_extra_info(self, name: str, default: Any = None) -> Any:
+        """Extra info from protocol transport"""
+        protocol = self._protocol
+        if protocol is None:
+            return default
+
+        transport = protocol.transport
+        if transport is None:
+            return default
+
+        return transport.get_extra_info(name, default)
+
+    def __repr__(self) -> str:
+        ascii_encodable_path = self.path.encode("ascii", "backslashreplace").decode(
+            "ascii"
+        )
+        return "<{} {} {} >".format(
+            self.__class__.__name__, self._method, ascii_encodable_path
+        )
+
+    def __eq__(self, other: object) -> bool:
+        return id(self) == id(other)
+
+    def __bool__(self) -> bool:
+        return True
+
+    async def _prepare_hook(self, response: StreamResponse) -> None:
+        return
+
+    def _cancel(self, exc: BaseException) -> None:
+        set_exception(self._payload, exc)
+
+    def _finish(self) -> None:
+        if self._post is None or self.content_type != "multipart/form-data":
+            return
+
+        # NOTE: Release file descriptors for the
+        # NOTE: `tempfile.Temporaryfile`-created `_io.BufferedRandom`
+        # NOTE: instances of files sent within multipart request body
+        # NOTE: via HTTP POST request.
+        for file_name, file_field_object in self._post.items():
+            if isinstance(file_field_object, FileField):
+                file_field_object.file.close()
+
+
+class Request(BaseRequest):
+
+    ATTRS = BaseRequest.ATTRS | frozenset(["_match_info"])
+
+    _match_info: Optional["UrlMappingMatchInfo"] = None
+
+    if DEBUG:
+
+        def __setattr__(self, name: str, val: Any) -> None:
+            if name not in self.ATTRS:
+                warnings.warn(
+                    "Setting custom {}.{} attribute "
+                    "is discouraged".format(self.__class__.__name__, name),
+                    DeprecationWarning,
+                    stacklevel=2,
+                )
+            super().__setattr__(name, val)
+
+    def clone(
+        self,
+        *,
+        method: Union[str, _SENTINEL] = sentinel,
+        rel_url: Union[StrOrURL, _SENTINEL] = sentinel,
+        headers: Union[LooseHeaders, _SENTINEL] = sentinel,
+        scheme: Union[str, _SENTINEL] = sentinel,
+        host: Union[str, _SENTINEL] = sentinel,
+        remote: Union[str, _SENTINEL] = sentinel,
+        client_max_size: Union[int, _SENTINEL] = sentinel,
+    ) -> "Request":
+        ret = super().clone(
+            method=method,
+            rel_url=rel_url,
+            headers=headers,
+            scheme=scheme,
+            host=host,
+            remote=remote,
+            client_max_size=client_max_size,
+        )
+        new_ret = cast(Request, ret)
+        new_ret._match_info = self._match_info
+        return new_ret
+
+    @reify
+    def match_info(self) -> "UrlMappingMatchInfo":
+        """Result of route resolving."""
+        match_info = self._match_info
+        assert match_info is not None
+        return match_info
+
+    @property
+    def app(self) -> "Application":
+        """Application instance."""
+        match_info = self._match_info
+        assert match_info is not None
+        return match_info.current_app
+
+    @property
+    def config_dict(self) -> ChainMapProxy:
+        match_info = self._match_info
+        assert match_info is not None
+        lst = match_info.apps
+        app = self.app
+        idx = lst.index(app)
+        sublist = list(reversed(lst[: idx + 1]))
+        return ChainMapProxy(sublist)
+
+    async def _prepare_hook(self, response: StreamResponse) -> None:
+        match_info = self._match_info
+        if match_info is None:
+            return
+        for app in match_info._apps:
+            if on_response_prepare := app.on_response_prepare:
+                await on_response_prepare.send(self, response)

deepseek/lib/python3.10/site-packages/aiohttp/web_response.py

@@ -0,0 +1,840 @@
+import asyncio
+import collections.abc
+import datetime
+import enum
+import json
+import math
+import time
+import warnings
+import zlib
+from concurrent.futures import Executor
+from http import HTTPStatus
+from http.cookies import SimpleCookie
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Dict,
+    Iterator,
+    MutableMapping,
+    Optional,
+    Union,
+    cast,
+)
+
+from multidict import CIMultiDict, istr
+
+from . import hdrs, payload
+from .abc import AbstractStreamWriter
+from .compression_utils import ZLibCompressor
+from .helpers import (
+    ETAG_ANY,
+    QUOTED_ETAG_RE,
+    ETag,
+    HeadersMixin,
+    must_be_empty_body,
+    parse_http_date,
+    rfc822_formatted_time,
+    sentinel,
+    should_remove_content_length,
+    validate_etag_value,
+)
+from .http import SERVER_SOFTWARE, HttpVersion10, HttpVersion11
+from .payload import Payload
+from .typedefs import JSONEncoder, LooseHeaders
+
+REASON_PHRASES = {http_status.value: http_status.phrase for http_status in HTTPStatus}
+LARGE_BODY_SIZE = 1024**2
+
+__all__ = ("ContentCoding", "StreamResponse", "Response", "json_response")
+
+
+if TYPE_CHECKING:
+    from .web_request import BaseRequest
+
+    BaseClass = MutableMapping[str, Any]
+else:
+    BaseClass = collections.abc.MutableMapping
+
+
+# TODO(py311): Convert to StrEnum for wider use
+class ContentCoding(enum.Enum):
+    # The content codings that we have support for.
+    #
+    # Additional registered codings are listed at:
+    # https://www.iana.org/assignments/http-parameters/http-parameters.xhtml#content-coding
+    deflate = "deflate"
+    gzip = "gzip"
+    identity = "identity"
+
+
+CONTENT_CODINGS = {coding.value: coding for coding in ContentCoding}
+
+############################################################
+# HTTP Response classes
+############################################################
+
+
+class StreamResponse(BaseClass, HeadersMixin):
+
+    _body: Union[None, bytes, bytearray, Payload]
+    _length_check = True
+    _body = None
+    _keep_alive: Optional[bool] = None
+    _chunked: bool = False
+    _compression: bool = False
+    _compression_strategy: int = zlib.Z_DEFAULT_STRATEGY
+    _compression_force: Optional[ContentCoding] = None
+    _req: Optional["BaseRequest"] = None
+    _payload_writer: Optional[AbstractStreamWriter] = None
+    _eof_sent: bool = False
+    _must_be_empty_body: Optional[bool] = None
+    _body_length = 0
+    _cookies: Optional[SimpleCookie] = None
+
+    def __init__(
+        self,
+        *,
+        status: int = 200,
+        reason: Optional[str] = None,
+        headers: Optional[LooseHeaders] = None,
+        _real_headers: Optional[CIMultiDict[str]] = None,
+    ) -> None:
+        """Initialize a new stream response object.
+
+        _real_headers is an internal parameter used to pass a pre-populated
+        headers object. It is used by the `Response` class to avoid copying
+        the headers when creating a new response object. It is not intended
+        to be used by external code.
+        """
+        self._state: Dict[str, Any] = {}
+
+        if _real_headers is not None:
+            self._headers = _real_headers
+        elif headers is not None:
+            self._headers: CIMultiDict[str] = CIMultiDict(headers)
+        else:
+            self._headers = CIMultiDict()
+
+        self._set_status(status, reason)
+
+    @property
+    def prepared(self) -> bool:
+        return self._eof_sent or self._payload_writer is not None
+
+    @property
+    def task(self) -> "Optional[asyncio.Task[None]]":
+        if self._req:
+            return self._req.task
+        else:
+            return None
+
+    @property
+    def status(self) -> int:
+        return self._status
+
+    @property
+    def chunked(self) -> bool:
+        return self._chunked
+
+    @property
+    def compression(self) -> bool:
+        return self._compression
+
+    @property
+    def reason(self) -> str:
+        return self._reason
+
+    def set_status(
+        self,
+        status: int,
+        reason: Optional[str] = None,
+    ) -> None:
+        assert (
+            not self.prepared
+        ), "Cannot change the response status code after the headers have been sent"
+        self._set_status(status, reason)
+
+    def _set_status(self, status: int, reason: Optional[str]) -> None:
+        self._status = int(status)
+        if reason is None:
+            reason = REASON_PHRASES.get(self._status, "")
+        elif "\n" in reason:
+            raise ValueError("Reason cannot contain \\n")
+        self._reason = reason
+
+    @property
+    def keep_alive(self) -> Optional[bool]:
+        return self._keep_alive
+
+    def force_close(self) -> None:
+        self._keep_alive = False
+
+    @property
+    def body_length(self) -> int:
+        return self._body_length
+
+    @property
+    def output_length(self) -> int:
+        warnings.warn("output_length is deprecated", DeprecationWarning)
+        assert self._payload_writer
+        return self._payload_writer.buffer_size
+
+    def enable_chunked_encoding(self, chunk_size: Optional[int] = None) -> None:
+        """Enables automatic chunked transfer encoding."""
+        if hdrs.CONTENT_LENGTH in self._headers:
+            raise RuntimeError(
+                "You can't enable chunked encoding when a content length is set"
+            )
+        if chunk_size is not None:
+            warnings.warn("Chunk size is deprecated #1615", DeprecationWarning)
+        self._chunked = True
+
+    def enable_compression(
+        self,
+        force: Optional[Union[bool, ContentCoding]] = None,
+        strategy: int = zlib.Z_DEFAULT_STRATEGY,
+    ) -> None:
+        """Enables response compression encoding."""
+        # Backwards compatibility for when force was a bool <0.17.
+        if isinstance(force, bool):
+            force = ContentCoding.deflate if force else ContentCoding.identity
+            warnings.warn(
+                "Using boolean for force is deprecated #3318", DeprecationWarning
+            )
+        elif force is not None:
+            assert isinstance(
+                force, ContentCoding
+            ), "force should one of None, bool or ContentEncoding"
+
+        self._compression = True
+        self._compression_force = force
+        self._compression_strategy = strategy
+
+    @property
+    def headers(self) -> "CIMultiDict[str]":
+        return self._headers
+
+    @property
+    def cookies(self) -> SimpleCookie:
+        if self._cookies is None:
+            self._cookies = SimpleCookie()
+        return self._cookies
+
+    def set_cookie(
+        self,
+        name: str,
+        value: str,
+        *,
+        expires: Optional[str] = None,
+        domain: Optional[str] = None,
+        max_age: Optional[Union[int, str]] = None,
+        path: str = "/",
+        secure: Optional[bool] = None,
+        httponly: Optional[bool] = None,
+        version: Optional[str] = None,
+        samesite: Optional[str] = None,
+    ) -> None:
+        """Set or update response cookie.
+
+        Sets new cookie or updates existent with new value.
+        Also updates only those params which are not None.
+        """
+        if self._cookies is None:
+            self._cookies = SimpleCookie()
+
+        self._cookies[name] = value
+        c = self._cookies[name]
+
+        if expires is not None:
+            c["expires"] = expires
+        elif c.get("expires") == "Thu, 01 Jan 1970 00:00:00 GMT":
+            del c["expires"]
+
+        if domain is not None:
+            c["domain"] = domain
+
+        if max_age is not None:
+            c["max-age"] = str(max_age)
+        elif "max-age" in c:
+            del c["max-age"]
+
+        c["path"] = path
+
+        if secure is not None:
+            c["secure"] = secure
+        if httponly is not None:
+            c["httponly"] = httponly
+        if version is not None:
+            c["version"] = version
+        if samesite is not None:
+            c["samesite"] = samesite
+
+    def del_cookie(
+        self,
+        name: str,
+        *,
+        domain: Optional[str] = None,
+        path: str = "/",
+        secure: Optional[bool] = None,
+        httponly: Optional[bool] = None,
+        samesite: Optional[str] = None,
+    ) -> None:
+        """Delete cookie.
+
+        Creates new empty expired cookie.
+        """
+        # TODO: do we need domain/path here?
+        if self._cookies is not None:
+            self._cookies.pop(name, None)
+        self.set_cookie(
+            name,
+            "",
+            max_age=0,
+            expires="Thu, 01 Jan 1970 00:00:00 GMT",
+            domain=domain,
+            path=path,
+            secure=secure,
+            httponly=httponly,
+            samesite=samesite,
+        )
+
+    @property
+    def content_length(self) -> Optional[int]:
+        # Just a placeholder for adding setter
+        return super().content_length
+
+    @content_length.setter
+    def content_length(self, value: Optional[int]) -> None:
+        if value is not None:
+            value = int(value)
+            if self._chunked:
+                raise RuntimeError(
+                    "You can't set content length when chunked encoding is enable"
+                )
+            self._headers[hdrs.CONTENT_LENGTH] = str(value)
+        else:
+            self._headers.pop(hdrs.CONTENT_LENGTH, None)
+
+    @property
+    def content_type(self) -> str:
+        # Just a placeholder for adding setter
+        return super().content_type
+
+    @content_type.setter
+    def content_type(self, value: str) -> None:
+        self.content_type  # read header values if needed
+        self._content_type = str(value)
+        self._generate_content_type_header()
+
+    @property
+    def charset(self) -> Optional[str]:
+        # Just a placeholder for adding setter
+        return super().charset
+
+    @charset.setter
+    def charset(self, value: Optional[str]) -> None:
+        ctype = self.content_type  # read header values if needed
+        if ctype == "application/octet-stream":
+            raise RuntimeError(
+                "Setting charset for application/octet-stream "
+                "doesn't make sense, setup content_type first"
+            )
+        assert self._content_dict is not None
+        if value is None:
+            self._content_dict.pop("charset", None)
+        else:
+            self._content_dict["charset"] = str(value).lower()
+        self._generate_content_type_header()
+
+    @property
+    def last_modified(self) -> Optional[datetime.datetime]:
+        """The value of Last-Modified HTTP header, or None.
+
+        This header is represented as a `datetime` object.
+        """
+        return parse_http_date(self._headers.get(hdrs.LAST_MODIFIED))
+
+    @last_modified.setter
+    def last_modified(
+        self, value: Optional[Union[int, float, datetime.datetime, str]]
+    ) -> None:
+        if value is None:
+            self._headers.pop(hdrs.LAST_MODIFIED, None)
+        elif isinstance(value, (int, float)):
+            self._headers[hdrs.LAST_MODIFIED] = time.strftime(
+                "%a, %d %b %Y %H:%M:%S GMT", time.gmtime(math.ceil(value))
+            )
+        elif isinstance(value, datetime.datetime):
+            self._headers[hdrs.LAST_MODIFIED] = time.strftime(
+                "%a, %d %b %Y %H:%M:%S GMT", value.utctimetuple()
+            )
+        elif isinstance(value, str):
+            self._headers[hdrs.LAST_MODIFIED] = value
+
+    @property
+    def etag(self) -> Optional[ETag]:
+        quoted_value = self._headers.get(hdrs.ETAG)
+        if not quoted_value:
+            return None
+        elif quoted_value == ETAG_ANY:
+            return ETag(value=ETAG_ANY)
+        match = QUOTED_ETAG_RE.fullmatch(quoted_value)
+        if not match:
+            return None
+        is_weak, value = match.group(1, 2)
+        return ETag(
+            is_weak=bool(is_weak),
+            value=value,
+        )
+
+    @etag.setter
+    def etag(self, value: Optional[Union[ETag, str]]) -> None:
+        if value is None:
+            self._headers.pop(hdrs.ETAG, None)
+        elif (isinstance(value, str) and value == ETAG_ANY) or (
+            isinstance(value, ETag) and value.value == ETAG_ANY
+        ):
+            self._headers[hdrs.ETAG] = ETAG_ANY
+        elif isinstance(value, str):
+            validate_etag_value(value)
+            self._headers[hdrs.ETAG] = f'"{value}"'
+        elif isinstance(value, ETag) and isinstance(value.value, str):
+            validate_etag_value(value.value)
+            hdr_value = f'W/"{value.value}"' if value.is_weak else f'"{value.value}"'
+            self._headers[hdrs.ETAG] = hdr_value
+        else:
+            raise ValueError(
+                f"Unsupported etag type: {type(value)}. "
+                f"etag must be str, ETag or None"
+            )
+
+    def _generate_content_type_header(
+        self, CONTENT_TYPE: istr = hdrs.CONTENT_TYPE
+    ) -> None:
+        assert self._content_dict is not None
+        assert self._content_type is not None
+        params = "; ".join(f"{k}={v}" for k, v in self._content_dict.items())
+        if params:
+            ctype = self._content_type + "; " + params
+        else:
+            ctype = self._content_type
+        self._headers[CONTENT_TYPE] = ctype
+
+    async def _do_start_compression(self, coding: ContentCoding) -> None:
+        if coding is ContentCoding.identity:
+            return
+        assert self._payload_writer is not None
+        self._headers[hdrs.CONTENT_ENCODING] = coding.value
+        self._payload_writer.enable_compression(
+            coding.value, self._compression_strategy
+        )
+        # Compressed payload may have different content length,
+        # remove the header
+        self._headers.popall(hdrs.CONTENT_LENGTH, None)
+
+    async def _start_compression(self, request: "BaseRequest") -> None:
+        if self._compression_force:
+            await self._do_start_compression(self._compression_force)
+            return
+        # Encoding comparisons should be case-insensitive
+        # https://www.rfc-editor.org/rfc/rfc9110#section-8.4.1
+        accept_encoding = request.headers.get(hdrs.ACCEPT_ENCODING, "").lower()
+        for value, coding in CONTENT_CODINGS.items():
+            if value in accept_encoding:
+                await self._do_start_compression(coding)
+                return
+
+    async def prepare(self, request: "BaseRequest") -> Optional[AbstractStreamWriter]:
+        if self._eof_sent:
+            return None
+        if self._payload_writer is not None:
+            return self._payload_writer
+        self._must_be_empty_body = must_be_empty_body(request.method, self.status)
+        return await self._start(request)
+
+    async def _start(self, request: "BaseRequest") -> AbstractStreamWriter:
+        self._req = request
+        writer = self._payload_writer = request._payload_writer
+
+        await self._prepare_headers()
+        await request._prepare_hook(self)
+        await self._write_headers()
+
+        return writer
+
+    async def _prepare_headers(self) -> None:
+        request = self._req
+        assert request is not None
+        writer = self._payload_writer
+        assert writer is not None
+        keep_alive = self._keep_alive
+        if keep_alive is None:
+            keep_alive = request.keep_alive
+        self._keep_alive = keep_alive
+
+        version = request.version
+
+        headers = self._headers
+        if self._cookies:
+            for cookie in self._cookies.values():
+                value = cookie.output(header="")[1:]
+                headers.add(hdrs.SET_COOKIE, value)
+
+        if self._compression:
+            await self._start_compression(request)
+
+        if self._chunked:
+            if version != HttpVersion11:
+                raise RuntimeError(
+                    "Using chunked encoding is forbidden "
+                    "for HTTP/{0.major}.{0.minor}".format(request.version)
+                )
+            if not self._must_be_empty_body:
+                writer.enable_chunking()
+                headers[hdrs.TRANSFER_ENCODING] = "chunked"
+        elif self._length_check:  # Disabled for WebSockets
+            writer.length = self.content_length
+            if writer.length is None:
+                if version >= HttpVersion11:
+                    if not self._must_be_empty_body:
+                        writer.enable_chunking()
+                        headers[hdrs.TRANSFER_ENCODING] = "chunked"
+                elif not self._must_be_empty_body:
+                    keep_alive = False
+
+        # HTTP 1.1: https://tools.ietf.org/html/rfc7230#section-3.3.2
+        # HTTP 1.0: https://tools.ietf.org/html/rfc1945#section-10.4
+        if self._must_be_empty_body:
+            if hdrs.CONTENT_LENGTH in headers and should_remove_content_length(
+                request.method, self.status
+            ):
+                del headers[hdrs.CONTENT_LENGTH]
+            # https://datatracker.ietf.org/doc/html/rfc9112#section-6.1-10
+            # https://datatracker.ietf.org/doc/html/rfc9112#section-6.1-13
+            if hdrs.TRANSFER_ENCODING in headers:
+                del headers[hdrs.TRANSFER_ENCODING]
+        elif (writer.length if self._length_check else self.content_length) != 0:
+            # https://www.rfc-editor.org/rfc/rfc9110#section-8.3-5
+            headers.setdefault(hdrs.CONTENT_TYPE, "application/octet-stream")
+        headers.setdefault(hdrs.DATE, rfc822_formatted_time())
+        headers.setdefault(hdrs.SERVER, SERVER_SOFTWARE)
+
+        # connection header
+        if hdrs.CONNECTION not in headers:
+            if keep_alive:
+                if version == HttpVersion10:
+                    headers[hdrs.CONNECTION] = "keep-alive"
+            elif version == HttpVersion11:
+                headers[hdrs.CONNECTION] = "close"
+
+    async def _write_headers(self) -> None:
+        request = self._req
+        assert request is not None
+        writer = self._payload_writer
+        assert writer is not None
+        # status line
+        version = request.version
+        status_line = f"HTTP/{version[0]}.{version[1]} {self._status} {self._reason}"
+        await writer.write_headers(status_line, self._headers)
+
+    async def write(self, data: bytes) -> None:
+        assert isinstance(
+            data, (bytes, bytearray, memoryview)
+        ), "data argument must be byte-ish (%r)" % type(data)
+
+        if self._eof_sent:
+            raise RuntimeError("Cannot call write() after write_eof()")
+        if self._payload_writer is None:
+            raise RuntimeError("Cannot call write() before prepare()")
+
+        await self._payload_writer.write(data)
+
+    async def drain(self) -> None:
+        assert not self._eof_sent, "EOF has already been sent"
+        assert self._payload_writer is not None, "Response has not been started"
+        warnings.warn(
+            "drain method is deprecated, use await resp.write()",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        await self._payload_writer.drain()
+
+    async def write_eof(self, data: bytes = b"") -> None:
+        assert isinstance(
+            data, (bytes, bytearray, memoryview)
+        ), "data argument must be byte-ish (%r)" % type(data)
+
+        if self._eof_sent:
+            return
+
+        assert self._payload_writer is not None, "Response has not been started"
+
+        await self._payload_writer.write_eof(data)
+        self._eof_sent = True
+        self._req = None
+        self._body_length = self._payload_writer.output_size
+        self._payload_writer = None
+
+    def __repr__(self) -> str:
+        if self._eof_sent:
+            info = "eof"
+        elif self.prepared:
+            assert self._req is not None
+            info = f"{self._req.method} {self._req.path} "
+        else:
+            info = "not prepared"
+        return f"<{self.__class__.__name__} {self.reason} {info}>"
+
+    def __getitem__(self, key: str) -> Any:
+        return self._state[key]
+
+    def __setitem__(self, key: str, value: Any) -> None:
+        self._state[key] = value
+
+    def __delitem__(self, key: str) -> None:
+        del self._state[key]
+
+    def __len__(self) -> int:
+        return len(self._state)
+
+    def __iter__(self) -> Iterator[str]:
+        return iter(self._state)
+
+    def __hash__(self) -> int:
+        return hash(id(self))
+
+    def __eq__(self, other: object) -> bool:
+        return self is other
+
+
+class Response(StreamResponse):
+
+    _compressed_body: Optional[bytes] = None
+
+    def __init__(
+        self,
+        *,
+        body: Any = None,
+        status: int = 200,
+        reason: Optional[str] = None,
+        text: Optional[str] = None,
+        headers: Optional[LooseHeaders] = None,
+        content_type: Optional[str] = None,
+        charset: Optional[str] = None,
+        zlib_executor_size: Optional[int] = None,
+        zlib_executor: Optional[Executor] = None,
+    ) -> None:
+        if body is not None and text is not None:
+            raise ValueError("body and text are not allowed together")
+
+        if headers is None:
+            real_headers: CIMultiDict[str] = CIMultiDict()
+        elif not isinstance(headers, CIMultiDict):
+            real_headers = CIMultiDict(headers)
+        else:
+            real_headers = headers  # = cast('CIMultiDict[str]', headers)
+
+        if content_type is not None and "charset" in content_type:
+            raise ValueError("charset must not be in content_type argument")
+
+        if text is not None:
+            if hdrs.CONTENT_TYPE in real_headers:
+                if content_type or charset:
+                    raise ValueError(
+                        "passing both Content-Type header and "
+                        "content_type or charset params "
+                        "is forbidden"
+                    )
+            else:
+                # fast path for filling headers
+                if not isinstance(text, str):
+                    raise TypeError("text argument must be str (%r)" % type(text))
+                if content_type is None:
+                    content_type = "text/plain"
+                if charset is None:
+                    charset = "utf-8"
+                real_headers[hdrs.CONTENT_TYPE] = content_type + "; charset=" + charset
+                body = text.encode(charset)
+                text = None
+        elif hdrs.CONTENT_TYPE in real_headers:
+            if content_type is not None or charset is not None:
+                raise ValueError(
+                    "passing both Content-Type header and "
+                    "content_type or charset params "
+                    "is forbidden"
+                )
+        elif content_type is not None:
+            if charset is not None:
+                content_type += "; charset=" + charset
+            real_headers[hdrs.CONTENT_TYPE] = content_type
+
+        super().__init__(status=status, reason=reason, _real_headers=real_headers)
+
+        if text is not None:
+            self.text = text
+        else:
+            self.body = body
+
+        self._zlib_executor_size = zlib_executor_size
+        self._zlib_executor = zlib_executor
+
+    @property
+    def body(self) -> Optional[Union[bytes, Payload]]:
+        return self._body
+
+    @body.setter
+    def body(self, body: Any) -> None:
+        if body is None:
+            self._body = None
+        elif isinstance(body, (bytes, bytearray)):
+            self._body = body
+        else:
+            try:
+                self._body = body = payload.PAYLOAD_REGISTRY.get(body)
+            except payload.LookupError:
+                raise ValueError("Unsupported body type %r" % type(body))
+
+            headers = self._headers
+
+            # set content-type
+            if hdrs.CONTENT_TYPE not in headers:
+                headers[hdrs.CONTENT_TYPE] = body.content_type
+
+            # copy payload headers
+            if body.headers:
+                for key, value in body.headers.items():
+                    if key not in headers:
+                        headers[key] = value
+
+        self._compressed_body = None
+
+    @property
+    def text(self) -> Optional[str]:
+        if self._body is None:
+            return None
+        return self._body.decode(self.charset or "utf-8")
+
+    @text.setter
+    def text(self, text: str) -> None:
+        assert text is None or isinstance(
+            text, str
+        ), "text argument must be str (%r)" % type(text)
+
+        if self.content_type == "application/octet-stream":
+            self.content_type = "text/plain"
+        if self.charset is None:
+            self.charset = "utf-8"
+
+        self._body = text.encode(self.charset)
+        self._compressed_body = None
+
+    @property
+    def content_length(self) -> Optional[int]:
+        if self._chunked:
+            return None
+
+        if hdrs.CONTENT_LENGTH in self._headers:
+            return int(self._headers[hdrs.CONTENT_LENGTH])
+
+        if self._compressed_body is not None:
+            # Return length of the compressed body
+            return len(self._compressed_body)
+        elif isinstance(self._body, Payload):
+            # A payload without content length, or a compressed payload
+            return None
+        elif self._body is not None:
+            return len(self._body)
+        else:
+            return 0
+
+    @content_length.setter
+    def content_length(self, value: Optional[int]) -> None:
+        raise RuntimeError("Content length is set automatically")
+
+    async def write_eof(self, data: bytes = b"") -> None:
+        if self._eof_sent:
+            return
+        if self._compressed_body is None:
+            body: Optional[Union[bytes, Payload]] = self._body
+        else:
+            body = self._compressed_body
+        assert not data, f"data arg is not supported, got {data!r}"
+        assert self._req is not None
+        assert self._payload_writer is not None
+        if body is None or self._must_be_empty_body:
+            await super().write_eof()
+        elif isinstance(self._body, Payload):
+            await self._body.write(self._payload_writer)
+            await super().write_eof()
+        else:
+            await super().write_eof(cast(bytes, body))
+
+    async def _start(self, request: "BaseRequest") -> AbstractStreamWriter:
+        if hdrs.CONTENT_LENGTH in self._headers:
+            if should_remove_content_length(request.method, self.status):
+                del self._headers[hdrs.CONTENT_LENGTH]
+        elif not self._chunked:
+            if isinstance(self._body, Payload):
+                if self._body.size is not None:
+                    self._headers[hdrs.CONTENT_LENGTH] = str(self._body.size)
+            else:
+                body_len = len(self._body) if self._body else "0"
+                # https://www.rfc-editor.org/rfc/rfc9110.html#section-8.6-7
+                if body_len != "0" or (
+                    self.status != 304 and request.method not in hdrs.METH_HEAD_ALL
+                ):
+                    self._headers[hdrs.CONTENT_LENGTH] = str(body_len)
+
+        return await super()._start(request)
+
+    async def _do_start_compression(self, coding: ContentCoding) -> None:
+        if self._chunked or isinstance(self._body, Payload):
+            return await super()._do_start_compression(coding)
+        if coding is ContentCoding.identity:
+            return
+        # Instead of using _payload_writer.enable_compression,
+        # compress the whole body
+        compressor = ZLibCompressor(
+            encoding=coding.value,
+            max_sync_chunk_size=self._zlib_executor_size,
+            executor=self._zlib_executor,
+        )
+        assert self._body is not None
+        if self._zlib_executor_size is None and len(self._body) > LARGE_BODY_SIZE:
+            warnings.warn(
+                "Synchronous compression of large response bodies "
+                f"({len(self._body)} bytes) might block the async event loop. "
+                "Consider providing a custom value to zlib_executor_size/"
+                "zlib_executor response properties or disabling compression on it."
+            )
+        self._compressed_body = (
+            await compressor.compress(self._body) + compressor.flush()
+        )
+        self._headers[hdrs.CONTENT_ENCODING] = coding.value
+        self._headers[hdrs.CONTENT_LENGTH] = str(len(self._compressed_body))
+
+
+def json_response(
+    data: Any = sentinel,
+    *,
+    text: Optional[str] = None,
+    body: Optional[bytes] = None,
+    status: int = 200,
+    reason: Optional[str] = None,
+    headers: Optional[LooseHeaders] = None,
+    content_type: str = "application/json",
+    dumps: JSONEncoder = json.dumps,
+) -> Response:
+    if data is not sentinel:
+        if text or body:
+            raise ValueError("only one of data, text, or body should be specified")
+        else:
+            text = dumps(data)
+    return Response(
+        text=text,
+        body=body,
+        status=status,
+        reason=reason,
+        headers=headers,
+        content_type=content_type,
+    )

deepseek/lib/python3.10/site-packages/aiohttp/web_urldispatcher.py

@@ -0,0 +1,1301 @@
+import abc
+import asyncio
+import base64
+import functools
+import hashlib
+import html
+import inspect
+import keyword
+import os
+import re
+import sys
+import warnings
+from functools import wraps
+from pathlib import Path
+from types import MappingProxyType
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Awaitable,
+    Callable,
+    Container,
+    Dict,
+    Final,
+    Generator,
+    Iterable,
+    Iterator,
+    List,
+    Mapping,
+    NoReturn,
+    Optional,
+    Pattern,
+    Set,
+    Sized,
+    Tuple,
+    Type,
+    TypedDict,
+    Union,
+    cast,
+)
+
+from yarl import URL, __version__ as yarl_version
+
+from . import hdrs
+from .abc import AbstractMatchInfo, AbstractRouter, AbstractView
+from .helpers import DEBUG
+from .http import HttpVersion11
+from .typedefs import Handler, PathLike
+from .web_exceptions import (
+    HTTPException,
+    HTTPExpectationFailed,
+    HTTPForbidden,
+    HTTPMethodNotAllowed,
+    HTTPNotFound,
+)
+from .web_fileresponse import FileResponse
+from .web_request import Request
+from .web_response import Response, StreamResponse
+from .web_routedef import AbstractRouteDef
+
+__all__ = (
+    "UrlDispatcher",
+    "UrlMappingMatchInfo",
+    "AbstractResource",
+    "Resource",
+    "PlainResource",
+    "DynamicResource",
+    "AbstractRoute",
+    "ResourceRoute",
+    "StaticResource",
+    "View",
+)
+
+
+if TYPE_CHECKING:
+    from .web_app import Application
+
+    BaseDict = Dict[str, str]
+else:
+    BaseDict = dict
+
+CIRCULAR_SYMLINK_ERROR = (
+    (OSError,)
+    if sys.version_info < (3, 10) and sys.platform.startswith("win32")
+    else (RuntimeError,) if sys.version_info < (3, 13) else ()
+)
+
+YARL_VERSION: Final[Tuple[int, ...]] = tuple(map(int, yarl_version.split(".")[:2]))
+
+HTTP_METHOD_RE: Final[Pattern[str]] = re.compile(
+    r"^[0-9A-Za-z!#\$%&'\*\+\-\.\^_`\|~]+$"
+)
+ROUTE_RE: Final[Pattern[str]] = re.compile(
+    r"(\{[_a-zA-Z][^{}]*(?:\{[^{}]*\}[^{}]*)*\})"
+)
+PATH_SEP: Final[str] = re.escape("/")
+
+
+_ExpectHandler = Callable[[Request], Awaitable[Optional[StreamResponse]]]
+_Resolve = Tuple[Optional["UrlMappingMatchInfo"], Set[str]]
+
+html_escape = functools.partial(html.escape, quote=True)
+
+
+class _InfoDict(TypedDict, total=False):
+    path: str
+
+    formatter: str
+    pattern: Pattern[str]
+
+    directory: Path
+    prefix: str
+    routes: Mapping[str, "AbstractRoute"]
+
+    app: "Application"
+
+    domain: str
+
+    rule: "AbstractRuleMatching"
+
+    http_exception: HTTPException
+
+
+class AbstractResource(Sized, Iterable["AbstractRoute"]):
+    def __init__(self, *, name: Optional[str] = None) -> None:
+        self._name = name
+
+    @property
+    def name(self) -> Optional[str]:
+        return self._name
+
+    @property
+    @abc.abstractmethod
+    def canonical(self) -> str:
+        """Exposes the resource's canonical path.
+
+        For example '/foo/bar/{name}'
+
+        """
+
+    @abc.abstractmethod  # pragma: no branch
+    def url_for(self, **kwargs: str) -> URL:
+        """Construct url for resource with additional params."""
+
+    @abc.abstractmethod  # pragma: no branch
+    async def resolve(self, request: Request) -> _Resolve:
+        """Resolve resource.
+
+        Return (UrlMappingMatchInfo, allowed_methods) pair.
+        """
+
+    @abc.abstractmethod
+    def add_prefix(self, prefix: str) -> None:
+        """Add a prefix to processed URLs.
+
+        Required for subapplications support.
+        """
+
+    @abc.abstractmethod
+    def get_info(self) -> _InfoDict:
+        """Return a dict with additional info useful for introspection"""
+
+    def freeze(self) -> None:
+        pass
+
+    @abc.abstractmethod
+    def raw_match(self, path: str) -> bool:
+        """Perform a raw match against path"""
+
+
+class AbstractRoute(abc.ABC):
+    def __init__(
+        self,
+        method: str,
+        handler: Union[Handler, Type[AbstractView]],
+        *,
+        expect_handler: Optional[_ExpectHandler] = None,
+        resource: Optional[AbstractResource] = None,
+    ) -> None:
+
+        if expect_handler is None:
+            expect_handler = _default_expect_handler
+
+        assert asyncio.iscoroutinefunction(
+            expect_handler
+        ), f"Coroutine is expected, got {expect_handler!r}"
+
+        method = method.upper()
+        if not HTTP_METHOD_RE.match(method):
+            raise ValueError(f"{method} is not allowed HTTP method")
+
+        assert callable(handler), handler
+        if asyncio.iscoroutinefunction(handler):
+            pass
+        elif inspect.isgeneratorfunction(handler):
+            warnings.warn(
+                "Bare generators are deprecated, use @coroutine wrapper",
+                DeprecationWarning,
+            )
+        elif isinstance(handler, type) and issubclass(handler, AbstractView):
+            pass
+        else:
+            warnings.warn(
+                "Bare functions are deprecated, use async ones", DeprecationWarning
+            )
+
+            @wraps(handler)
+            async def handler_wrapper(request: Request) -> StreamResponse:
+                result = old_handler(request)  # type: ignore[call-arg]
+                if asyncio.iscoroutine(result):
+                    result = await result
+                assert isinstance(result, StreamResponse)
+                return result
+
+            old_handler = handler
+            handler = handler_wrapper
+
+        self._method = method
+        self._handler = handler
+        self._expect_handler = expect_handler
+        self._resource = resource
+
+    @property
+    def method(self) -> str:
+        return self._method
+
+    @property
+    def handler(self) -> Handler:
+        return self._handler
+
+    @property
+    @abc.abstractmethod
+    def name(self) -> Optional[str]:
+        """Optional route's name, always equals to resource's name."""
+
+    @property
+    def resource(self) -> Optional[AbstractResource]:
+        return self._resource
+
+    @abc.abstractmethod
+    def get_info(self) -> _InfoDict:
+        """Return a dict with additional info useful for introspection"""
+
+    @abc.abstractmethod  # pragma: no branch
+    def url_for(self, *args: str, **kwargs: str) -> URL:
+        """Construct url for route with additional params."""
+
+    async def handle_expect_header(self, request: Request) -> Optional[StreamResponse]:
+        return await self._expect_handler(request)
+
+
+class UrlMappingMatchInfo(BaseDict, AbstractMatchInfo):
+
+    __slots__ = ("_route", "_apps", "_current_app", "_frozen")
+
+    def __init__(self, match_dict: Dict[str, str], route: AbstractRoute) -> None:
+        super().__init__(match_dict)
+        self._route = route
+        self._apps: List[Application] = []
+        self._current_app: Optional[Application] = None
+        self._frozen = False
+
+    @property
+    def handler(self) -> Handler:
+        return self._route.handler
+
+    @property
+    def route(self) -> AbstractRoute:
+        return self._route
+
+    @property
+    def expect_handler(self) -> _ExpectHandler:
+        return self._route.handle_expect_header
+
+    @property
+    def http_exception(self) -> Optional[HTTPException]:
+        return None
+
+    def get_info(self) -> _InfoDict:  # type: ignore[override]
+        return self._route.get_info()
+
+    @property
+    def apps(self) -> Tuple["Application", ...]:
+        return tuple(self._apps)
+
+    def add_app(self, app: "Application") -> None:
+        if self._frozen:
+            raise RuntimeError("Cannot change apps stack after .freeze() call")
+        if self._current_app is None:
+            self._current_app = app
+        self._apps.insert(0, app)
+
+    @property
+    def current_app(self) -> "Application":
+        app = self._current_app
+        assert app is not None
+        return app
+
+    @current_app.setter
+    def current_app(self, app: "Application") -> None:
+        if DEBUG:  # pragma: no cover
+            if app not in self._apps:
+                raise RuntimeError(
+                    "Expected one of the following apps {!r}, got {!r}".format(
+                        self._apps, app
+                    )
+                )
+        self._current_app = app
+
+    def freeze(self) -> None:
+        self._frozen = True
+
+    def __repr__(self) -> str:
+        return f"<MatchInfo {super().__repr__()}: {self._route}>"
+
+
+class MatchInfoError(UrlMappingMatchInfo):
+
+    __slots__ = ("_exception",)
+
+    def __init__(self, http_exception: HTTPException) -> None:
+        self._exception = http_exception
+        super().__init__({}, SystemRoute(self._exception))
+
+    @property
+    def http_exception(self) -> HTTPException:
+        return self._exception
+
+    def __repr__(self) -> str:
+        return "<MatchInfoError {}: {}>".format(
+            self._exception.status, self._exception.reason
+        )
+
+
+async def _default_expect_handler(request: Request) -> None:
+    """Default handler for Expect header.
+
+    Just send "100 Continue" to client.
+    raise HTTPExpectationFailed if value of header is not "100-continue"
+    """
+    expect = request.headers.get(hdrs.EXPECT, "")
+    if request.version == HttpVersion11:
+        if expect.lower() == "100-continue":
+            await request.writer.write(b"HTTP/1.1 100 Continue\r\n\r\n")
+            # Reset output_size as we haven't started the main body yet.
+            request.writer.output_size = 0
+        else:
+            raise HTTPExpectationFailed(text="Unknown Expect: %s" % expect)
+
+
+class Resource(AbstractResource):
+    def __init__(self, *, name: Optional[str] = None) -> None:
+        super().__init__(name=name)
+        self._routes: Dict[str, ResourceRoute] = {}
+        self._any_route: Optional[ResourceRoute] = None
+        self._allowed_methods: Set[str] = set()
+
+    def add_route(
+        self,
+        method: str,
+        handler: Union[Type[AbstractView], Handler],
+        *,
+        expect_handler: Optional[_ExpectHandler] = None,
+    ) -> "ResourceRoute":
+        if route := self._routes.get(method, self._any_route):
+            raise RuntimeError(
+                "Added route will never be executed, "
+                f"method {route.method} is already "
+                "registered"
+            )
+
+        route_obj = ResourceRoute(method, handler, self, expect_handler=expect_handler)
+        self.register_route(route_obj)
+        return route_obj
+
+    def register_route(self, route: "ResourceRoute") -> None:
+        assert isinstance(
+            route, ResourceRoute
+        ), f"Instance of Route class is required, got {route!r}"
+        if route.method == hdrs.METH_ANY:
+            self._any_route = route
+        self._allowed_methods.add(route.method)
+        self._routes[route.method] = route
+
+    async def resolve(self, request: Request) -> _Resolve:
+        if (match_dict := self._match(request.rel_url.path_safe)) is None:
+            return None, set()
+        if route := self._routes.get(request.method, self._any_route):
+            return UrlMappingMatchInfo(match_dict, route), self._allowed_methods
+        return None, self._allowed_methods
+
+    @abc.abstractmethod
+    def _match(self, path: str) -> Optional[Dict[str, str]]:
+        pass  # pragma: no cover
+
+    def __len__(self) -> int:
+        return len(self._routes)
+
+    def __iter__(self) -> Iterator["ResourceRoute"]:
+        return iter(self._routes.values())
+
+    # TODO: implement all abstract methods
+
+
+class PlainResource(Resource):
+    def __init__(self, path: str, *, name: Optional[str] = None) -> None:
+        super().__init__(name=name)
+        assert not path or path.startswith("/")
+        self._path = path
+
+    @property
+    def canonical(self) -> str:
+        return self._path
+
+    def freeze(self) -> None:
+        if not self._path:
+            self._path = "/"
+
+    def add_prefix(self, prefix: str) -> None:
+        assert prefix.startswith("/")
+        assert not prefix.endswith("/")
+        assert len(prefix) > 1
+        self._path = prefix + self._path
+
+    def _match(self, path: str) -> Optional[Dict[str, str]]:
+        # string comparison is about 10 times faster than regexp matching
+        if self._path == path:
+            return {}
+        return None
+
+    def raw_match(self, path: str) -> bool:
+        return self._path == path
+
+    def get_info(self) -> _InfoDict:
+        return {"path": self._path}
+
+    def url_for(self) -> URL:  # type: ignore[override]
+        return URL.build(path=self._path, encoded=True)
+
+    def __repr__(self) -> str:
+        name = "'" + self.name + "' " if self.name is not None else ""
+        return f"<PlainResource {name} {self._path}>"
+
+
+class DynamicResource(Resource):
+
+    DYN = re.compile(r"\{(?P<var>[_a-zA-Z][_a-zA-Z0-9]*)\}")
+    DYN_WITH_RE = re.compile(r"\{(?P<var>[_a-zA-Z][_a-zA-Z0-9]*):(?P<re>.+)\}")
+    GOOD = r"[^{}/]+"
+
+    def __init__(self, path: str, *, name: Optional[str] = None) -> None:
+        super().__init__(name=name)
+        self._orig_path = path
+        pattern = ""
+        formatter = ""
+        for part in ROUTE_RE.split(path):
+            match = self.DYN.fullmatch(part)
+            if match:
+                pattern += "(?P<{}>{})".format(match.group("var"), self.GOOD)
+                formatter += "{" + match.group("var") + "}"
+                continue
+
+            match = self.DYN_WITH_RE.fullmatch(part)
+            if match:
+                pattern += "(?P<{var}>{re})".format(**match.groupdict())
+                formatter += "{" + match.group("var") + "}"
+                continue
+
+            if "{" in part or "}" in part:
+                raise ValueError(f"Invalid path '{path}'['{part}']")
+
+            part = _requote_path(part)
+            formatter += part
+            pattern += re.escape(part)
+
+        try:
+            compiled = re.compile(pattern)
+        except re.error as exc:
+            raise ValueError(f"Bad pattern '{pattern}': {exc}") from None
+        assert compiled.pattern.startswith(PATH_SEP)
+        assert formatter.startswith("/")
+        self._pattern = compiled
+        self._formatter = formatter
+
+    @property
+    def canonical(self) -> str:
+        return self._formatter
+
+    def add_prefix(self, prefix: str) -> None:
+        assert prefix.startswith("/")
+        assert not prefix.endswith("/")
+        assert len(prefix) > 1
+        self._pattern = re.compile(re.escape(prefix) + self._pattern.pattern)
+        self._formatter = prefix + self._formatter
+
+    def _match(self, path: str) -> Optional[Dict[str, str]]:
+        match = self._pattern.fullmatch(path)
+        if match is None:
+            return None
+        return {
+            key: _unquote_path_safe(value) for key, value in match.groupdict().items()
+        }
+
+    def raw_match(self, path: str) -> bool:
+        return self._orig_path == path
+
+    def get_info(self) -> _InfoDict:
+        return {"formatter": self._formatter, "pattern": self._pattern}
+
+    def url_for(self, **parts: str) -> URL:
+        url = self._formatter.format_map({k: _quote_path(v) for k, v in parts.items()})
+        return URL.build(path=url, encoded=True)
+
+    def __repr__(self) -> str:
+        name = "'" + self.name + "' " if self.name is not None else ""
+        return "<DynamicResource {name} {formatter}>".format(
+            name=name, formatter=self._formatter
+        )
+
+
+class PrefixResource(AbstractResource):
+    def __init__(self, prefix: str, *, name: Optional[str] = None) -> None:
+        assert not prefix or prefix.startswith("/"), prefix
+        assert prefix in ("", "/") or not prefix.endswith("/"), prefix
+        super().__init__(name=name)
+        self._prefix = _requote_path(prefix)
+        self._prefix2 = self._prefix + "/"
+
+    @property
+    def canonical(self) -> str:
+        return self._prefix
+
+    def add_prefix(self, prefix: str) -> None:
+        assert prefix.startswith("/")
+        assert not prefix.endswith("/")
+        assert len(prefix) > 1
+        self._prefix = prefix + self._prefix
+        self._prefix2 = self._prefix + "/"
+
+    def raw_match(self, prefix: str) -> bool:
+        return False
+
+    # TODO: impl missing abstract methods
+
+
+class StaticResource(PrefixResource):
+    VERSION_KEY = "v"
+
+    def __init__(
+        self,
+        prefix: str,
+        directory: PathLike,
+        *,
+        name: Optional[str] = None,
+        expect_handler: Optional[_ExpectHandler] = None,
+        chunk_size: int = 256 * 1024,
+        show_index: bool = False,
+        follow_symlinks: bool = False,
+        append_version: bool = False,
+    ) -> None:
+        super().__init__(prefix, name=name)
+        try:
+            directory = Path(directory).expanduser().resolve(strict=True)
+        except FileNotFoundError as error:
+            raise ValueError(f"'{directory}' does not exist") from error
+        if not directory.is_dir():
+            raise ValueError(f"'{directory}' is not a directory")
+        self._directory = directory
+        self._show_index = show_index
+        self._chunk_size = chunk_size
+        self._follow_symlinks = follow_symlinks
+        self._expect_handler = expect_handler
+        self._append_version = append_version
+
+        self._routes = {
+            "GET": ResourceRoute(
+                "GET", self._handle, self, expect_handler=expect_handler
+            ),
+            "HEAD": ResourceRoute(
+                "HEAD", self._handle, self, expect_handler=expect_handler
+            ),
+        }
+        self._allowed_methods = set(self._routes)
+
+    def url_for(  # type: ignore[override]
+        self,
+        *,
+        filename: PathLike,
+        append_version: Optional[bool] = None,
+    ) -> URL:
+        if append_version is None:
+            append_version = self._append_version
+        filename = str(filename).lstrip("/")
+
+        url = URL.build(path=self._prefix, encoded=True)
+        # filename is not encoded
+        if YARL_VERSION < (1, 6):
+            url = url / filename.replace("%", "%25")
+        else:
+            url = url / filename
+
+        if append_version:
+            unresolved_path = self._directory.joinpath(filename)
+            try:
+                if self._follow_symlinks:
+                    normalized_path = Path(os.path.normpath(unresolved_path))
+                    normalized_path.relative_to(self._directory)
+                    filepath = normalized_path.resolve()
+                else:
+                    filepath = unresolved_path.resolve()
+                    filepath.relative_to(self._directory)
+            except (ValueError, FileNotFoundError):
+                # ValueError for case when path point to symlink
+                # with follow_symlinks is False
+                return url  # relatively safe
+            if filepath.is_file():
+                # TODO cache file content
+                # with file watcher for cache invalidation
+                with filepath.open("rb") as f:
+                    file_bytes = f.read()
+                h = self._get_file_hash(file_bytes)
+                url = url.with_query({self.VERSION_KEY: h})
+                return url
+        return url
+
+    @staticmethod
+    def _get_file_hash(byte_array: bytes) -> str:
+        m = hashlib.sha256()  # todo sha256 can be configurable param
+        m.update(byte_array)
+        b64 = base64.urlsafe_b64encode(m.digest())
+        return b64.decode("ascii")
+
+    def get_info(self) -> _InfoDict:
+        return {
+            "directory": self._directory,
+            "prefix": self._prefix,
+            "routes": self._routes,
+        }
+
+    def set_options_route(self, handler: Handler) -> None:
+        if "OPTIONS" in self._routes:
+            raise RuntimeError("OPTIONS route was set already")
+        self._routes["OPTIONS"] = ResourceRoute(
+            "OPTIONS", handler, self, expect_handler=self._expect_handler
+        )
+        self._allowed_methods.add("OPTIONS")
+
+    async def resolve(self, request: Request) -> _Resolve:
+        path = request.rel_url.path_safe
+        method = request.method
+        if not path.startswith(self._prefix2) and path != self._prefix:
+            return None, set()
+
+        allowed_methods = self._allowed_methods
+        if method not in allowed_methods:
+            return None, allowed_methods
+
+        match_dict = {"filename": _unquote_path_safe(path[len(self._prefix) + 1 :])}
+        return (UrlMappingMatchInfo(match_dict, self._routes[method]), allowed_methods)
+
+    def __len__(self) -> int:
+        return len(self._routes)
+
+    def __iter__(self) -> Iterator[AbstractRoute]:
+        return iter(self._routes.values())
+
+    async def _handle(self, request: Request) -> StreamResponse:
+        rel_url = request.match_info["filename"]
+        filename = Path(rel_url)
+        if filename.anchor:
+            # rel_url is an absolute name like
+            # /static/\\machine_name\c$ or /static/D:\path
+            # where the static dir is totally different
+            raise HTTPForbidden()
+
+        unresolved_path = self._directory.joinpath(filename)
+        loop = asyncio.get_running_loop()
+        return await loop.run_in_executor(
+            None, self._resolve_path_to_response, unresolved_path
+        )
+
+    def _resolve_path_to_response(self, unresolved_path: Path) -> StreamResponse:
+        """Take the unresolved path and query the file system to form a response."""
+        # Check for access outside the root directory. For follow symlinks, URI
+        # cannot traverse out, but symlinks can. Otherwise, no access outside
+        # root is permitted.
+        try:
+            if self._follow_symlinks:
+                normalized_path = Path(os.path.normpath(unresolved_path))
+                normalized_path.relative_to(self._directory)
+                file_path = normalized_path.resolve()
+            else:
+                file_path = unresolved_path.resolve()
+                file_path.relative_to(self._directory)
+        except (ValueError, *CIRCULAR_SYMLINK_ERROR) as error:
+            # ValueError is raised for the relative check. Circular symlinks
+            # raise here on resolving for python < 3.13.
+            raise HTTPNotFound() from error
+
+        # if path is a directory, return the contents if permitted. Note the
+        # directory check will raise if a segment is not readable.
+        try:
+            if file_path.is_dir():
+                if self._show_index:
+                    return Response(
+                        text=self._directory_as_html(file_path),
+                        content_type="text/html",
+                    )
+                else:
+                    raise HTTPForbidden()
+        except PermissionError as error:
+            raise HTTPForbidden() from error
+
+        # Return the file response, which handles all other checks.
+        return FileResponse(file_path, chunk_size=self._chunk_size)
+
+    def _directory_as_html(self, dir_path: Path) -> str:
+        """returns directory's index as html."""
+        assert dir_path.is_dir()
+
+        relative_path_to_dir = dir_path.relative_to(self._directory).as_posix()
+        index_of = f"Index of /{html_escape(relative_path_to_dir)}"
+        h1 = f"<h1>{index_of}</h1>"
+
+        index_list = []
+        dir_index = dir_path.iterdir()
+        for _file in sorted(dir_index):
+            # show file url as relative to static path
+            rel_path = _file.relative_to(self._directory).as_posix()
+            quoted_file_url = _quote_path(f"{self._prefix}/{rel_path}")
+
+            # if file is a directory, add '/' to the end of the name
+            if _file.is_dir():
+                file_name = f"{_file.name}/"
+            else:
+                file_name = _file.name
+
+            index_list.append(
+                f'<li><a href="{quoted_file_url}">{html_escape(file_name)}</a></li>'
+            )
+        ul = "<ul>\n{}\n</ul>".format("\n".join(index_list))
+        body = f"<body>\n{h1}\n{ul}\n</body>"
+
+        head_str = f"<head>\n<title>{index_of}</title>\n</head>"
+        html = f"<html>\n{head_str}\n{body}\n</html>"
+
+        return html
+
+    def __repr__(self) -> str:
+        name = "'" + self.name + "'" if self.name is not None else ""
+        return "<StaticResource {name} {path} -> {directory!r}>".format(
+            name=name, path=self._prefix, directory=self._directory
+        )
+
+
+class PrefixedSubAppResource(PrefixResource):
+    def __init__(self, prefix: str, app: "Application") -> None:
+        super().__init__(prefix)
+        self._app = app
+        self._add_prefix_to_resources(prefix)
+
+    def add_prefix(self, prefix: str) -> None:
+        super().add_prefix(prefix)
+        self._add_prefix_to_resources(prefix)
+
+    def _add_prefix_to_resources(self, prefix: str) -> None:
+        router = self._app.router
+        for resource in router.resources():
+            # Since the canonical path of a resource is about
+            # to change, we need to unindex it and then reindex
+            router.unindex_resource(resource)
+            resource.add_prefix(prefix)
+            router.index_resource(resource)
+
+    def url_for(self, *args: str, **kwargs: str) -> URL:
+        raise RuntimeError(".url_for() is not supported by sub-application root")
+
+    def get_info(self) -> _InfoDict:
+        return {"app": self._app, "prefix": self._prefix}
+
+    async def resolve(self, request: Request) -> _Resolve:
+        match_info = await self._app.router.resolve(request)
+        match_info.add_app(self._app)
+        if isinstance(match_info.http_exception, HTTPMethodNotAllowed):
+            methods = match_info.http_exception.allowed_methods
+        else:
+            methods = set()
+        return match_info, methods
+
+    def __len__(self) -> int:
+        return len(self._app.router.routes())
+
+    def __iter__(self) -> Iterator[AbstractRoute]:
+        return iter(self._app.router.routes())
+
+    def __repr__(self) -> str:
+        return "<PrefixedSubAppResource {prefix} -> {app!r}>".format(
+            prefix=self._prefix, app=self._app
+        )
+
+
+class AbstractRuleMatching(abc.ABC):
+    @abc.abstractmethod  # pragma: no branch
+    async def match(self, request: Request) -> bool:
+        """Return bool if the request satisfies the criteria"""
+
+    @abc.abstractmethod  # pragma: no branch
+    def get_info(self) -> _InfoDict:
+        """Return a dict with additional info useful for introspection"""
+
+    @property
+    @abc.abstractmethod  # pragma: no branch
+    def canonical(self) -> str:
+        """Return a str"""
+
+
+class Domain(AbstractRuleMatching):
+    re_part = re.compile(r"(?!-)[a-z\d-]{1,63}(?<!-)")
+
+    def __init__(self, domain: str) -> None:
+        super().__init__()
+        self._domain = self.validation(domain)
+
+    @property
+    def canonical(self) -> str:
+        return self._domain
+
+    def validation(self, domain: str) -> str:
+        if not isinstance(domain, str):
+            raise TypeError("Domain must be str")
+        domain = domain.rstrip(".").lower()
+        if not domain:
+            raise ValueError("Domain cannot be empty")
+        elif "://" in domain:
+            raise ValueError("Scheme not supported")
+        url = URL("http://" + domain)
+        assert url.raw_host is not None
+        if not all(self.re_part.fullmatch(x) for x in url.raw_host.split(".")):
+            raise ValueError("Domain not valid")
+        if url.port == 80:
+            return url.raw_host
+        return f"{url.raw_host}:{url.port}"
+
+    async def match(self, request: Request) -> bool:
+        host = request.headers.get(hdrs.HOST)
+        if not host:
+            return False
+        return self.match_domain(host)
+
+    def match_domain(self, host: str) -> bool:
+        return host.lower() == self._domain
+
+    def get_info(self) -> _InfoDict:
+        return {"domain": self._domain}
+
+
+class MaskDomain(Domain):
+    re_part = re.compile(r"(?!-)[a-z\d\*-]{1,63}(?<!-)")
+
+    def __init__(self, domain: str) -> None:
+        super().__init__(domain)
+        mask = self._domain.replace(".", r"\.").replace("*", ".*")
+        self._mask = re.compile(mask)
+
+    @property
+    def canonical(self) -> str:
+        return self._mask.pattern
+
+    def match_domain(self, host: str) -> bool:
+        return self._mask.fullmatch(host) is not None
+
+
+class MatchedSubAppResource(PrefixedSubAppResource):
+    def __init__(self, rule: AbstractRuleMatching, app: "Application") -> None:
+        AbstractResource.__init__(self)
+        self._prefix = ""
+        self._app = app
+        self._rule = rule
+
+    @property
+    def canonical(self) -> str:
+        return self._rule.canonical
+
+    def get_info(self) -> _InfoDict:
+        return {"app": self._app, "rule": self._rule}
+
+    async def resolve(self, request: Request) -> _Resolve:
+        if not await self._rule.match(request):
+            return None, set()
+        match_info = await self._app.router.resolve(request)
+        match_info.add_app(self._app)
+        if isinstance(match_info.http_exception, HTTPMethodNotAllowed):
+            methods = match_info.http_exception.allowed_methods
+        else:
+            methods = set()
+        return match_info, methods
+
+    def __repr__(self) -> str:
+        return f"<MatchedSubAppResource -> {self._app!r}>"
+
+
+class ResourceRoute(AbstractRoute):
+    """A route with resource"""
+
+    def __init__(
+        self,
+        method: str,
+        handler: Union[Handler, Type[AbstractView]],
+        resource: AbstractResource,
+        *,
+        expect_handler: Optional[_ExpectHandler] = None,
+    ) -> None:
+        super().__init__(
+            method, handler, expect_handler=expect_handler, resource=resource
+        )
+
+    def __repr__(self) -> str:
+        return "<ResourceRoute [{method}] {resource} -> {handler!r}".format(
+            method=self.method, resource=self._resource, handler=self.handler
+        )
+
+    @property
+    def name(self) -> Optional[str]:
+        if self._resource is None:
+            return None
+        return self._resource.name
+
+    def url_for(self, *args: str, **kwargs: str) -> URL:
+        """Construct url for route with additional params."""
+        assert self._resource is not None
+        return self._resource.url_for(*args, **kwargs)
+
+    def get_info(self) -> _InfoDict:
+        assert self._resource is not None
+        return self._resource.get_info()
+
+
+class SystemRoute(AbstractRoute):
+    def __init__(self, http_exception: HTTPException) -> None:
+        super().__init__(hdrs.METH_ANY, self._handle)
+        self._http_exception = http_exception
+
+    def url_for(self, *args: str, **kwargs: str) -> URL:
+        raise RuntimeError(".url_for() is not allowed for SystemRoute")
+
+    @property
+    def name(self) -> Optional[str]:
+        return None
+
+    def get_info(self) -> _InfoDict:
+        return {"http_exception": self._http_exception}
+
+    async def _handle(self, request: Request) -> StreamResponse:
+        raise self._http_exception
+
+    @property
+    def status(self) -> int:
+        return self._http_exception.status
+
+    @property
+    def reason(self) -> str:
+        return self._http_exception.reason
+
+    def __repr__(self) -> str:
+        return "<SystemRoute {self.status}: {self.reason}>".format(self=self)
+
+
+class View(AbstractView):
+    async def _iter(self) -> StreamResponse:
+        if self.request.method not in hdrs.METH_ALL:
+            self._raise_allowed_methods()
+        method: Optional[Callable[[], Awaitable[StreamResponse]]]
+        method = getattr(self, self.request.method.lower(), None)
+        if method is None:
+            self._raise_allowed_methods()
+        ret = await method()
+        assert isinstance(ret, StreamResponse)
+        return ret
+
+    def __await__(self) -> Generator[Any, None, StreamResponse]:
+        return self._iter().__await__()
+
+    def _raise_allowed_methods(self) -> NoReturn:
+        allowed_methods = {m for m in hdrs.METH_ALL if hasattr(self, m.lower())}
+        raise HTTPMethodNotAllowed(self.request.method, allowed_methods)
+
+
+class ResourcesView(Sized, Iterable[AbstractResource], Container[AbstractResource]):
+    def __init__(self, resources: List[AbstractResource]) -> None:
+        self._resources = resources
+
+    def __len__(self) -> int:
+        return len(self._resources)
+
+    def __iter__(self) -> Iterator[AbstractResource]:
+        yield from self._resources
+
+    def __contains__(self, resource: object) -> bool:
+        return resource in self._resources
+
+
+class RoutesView(Sized, Iterable[AbstractRoute], Container[AbstractRoute]):
+    def __init__(self, resources: List[AbstractResource]):
+        self._routes: List[AbstractRoute] = []
+        for resource in resources:
+            for route in resource:
+                self._routes.append(route)
+
+    def __len__(self) -> int:
+        return len(self._routes)
+
+    def __iter__(self) -> Iterator[AbstractRoute]:
+        yield from self._routes
+
+    def __contains__(self, route: object) -> bool:
+        return route in self._routes
+
+
+class UrlDispatcher(AbstractRouter, Mapping[str, AbstractResource]):
+
+    NAME_SPLIT_RE = re.compile(r"[.:-]")
+
+    def __init__(self) -> None:
+        super().__init__()
+        self._resources: List[AbstractResource] = []
+        self._named_resources: Dict[str, AbstractResource] = {}
+        self._resource_index: dict[str, list[AbstractResource]] = {}
+        self._matched_sub_app_resources: List[MatchedSubAppResource] = []
+
+    async def resolve(self, request: Request) -> UrlMappingMatchInfo:
+        resource_index = self._resource_index
+        allowed_methods: Set[str] = set()
+
+        # Walk the url parts looking for candidates. We walk the url backwards
+        # to ensure the most explicit match is found first. If there are multiple
+        # candidates for a given url part because there are multiple resources
+        # registered for the same canonical path, we resolve them in a linear
+        # fashion to ensure registration order is respected.
+        url_part = request.rel_url.path_safe
+        while url_part:
+            for candidate in resource_index.get(url_part, ()):
+                match_dict, allowed = await candidate.resolve(request)
+                if match_dict is not None:
+                    return match_dict
+                else:
+                    allowed_methods |= allowed
+            if url_part == "/":
+                break
+            url_part = url_part.rpartition("/")[0] or "/"
+
+        #
+        # We didn't find any candidates, so we'll try the matched sub-app
+        # resources which we have to walk in a linear fashion because they
+        # have regex/wildcard match rules and we cannot index them.
+        #
+        # For most cases we do not expect there to be many of these since
+        # currently they are only added by `add_domain`
+        #
+        for resource in self._matched_sub_app_resources:
+            match_dict, allowed = await resource.resolve(request)
+            if match_dict is not None:
+                return match_dict
+            else:
+                allowed_methods |= allowed
+
+        if allowed_methods:
+            return MatchInfoError(HTTPMethodNotAllowed(request.method, allowed_methods))
+
+        return MatchInfoError(HTTPNotFound())
+
+    def __iter__(self) -> Iterator[str]:
+        return iter(self._named_resources)
+
+    def __len__(self) -> int:
+        return len(self._named_resources)
+
+    def __contains__(self, resource: object) -> bool:
+        return resource in self._named_resources
+
+    def __getitem__(self, name: str) -> AbstractResource:
+        return self._named_resources[name]
+
+    def resources(self) -> ResourcesView:
+        return ResourcesView(self._resources)
+
+    def routes(self) -> RoutesView:
+        return RoutesView(self._resources)
+
+    def named_resources(self) -> Mapping[str, AbstractResource]:
+        return MappingProxyType(self._named_resources)
+
+    def register_resource(self, resource: AbstractResource) -> None:
+        assert isinstance(
+            resource, AbstractResource
+        ), f"Instance of AbstractResource class is required, got {resource!r}"
+        if self.frozen:
+            raise RuntimeError("Cannot register a resource into frozen router.")
+
+        name = resource.name
+
+        if name is not None:
+            parts = self.NAME_SPLIT_RE.split(name)
+            for part in parts:
+                if keyword.iskeyword(part):
+                    raise ValueError(
+                        f"Incorrect route name {name!r}, "
+                        "python keywords cannot be used "
+                        "for route name"
+                    )
+                if not part.isidentifier():
+                    raise ValueError(
+                        "Incorrect route name {!r}, "
+                        "the name should be a sequence of "
+                        "python identifiers separated "
+                        "by dash, dot or column".format(name)
+                    )
+            if name in self._named_resources:
+                raise ValueError(
+                    "Duplicate {!r}, "
+                    "already handled by {!r}".format(name, self._named_resources[name])
+                )
+            self._named_resources[name] = resource
+        self._resources.append(resource)
+
+        if isinstance(resource, MatchedSubAppResource):
+            # We cannot index match sub-app resources because they have match rules
+            self._matched_sub_app_resources.append(resource)
+        else:
+            self.index_resource(resource)
+
+    def _get_resource_index_key(self, resource: AbstractResource) -> str:
+        """Return a key to index the resource in the resource index."""
+        if "{" in (index_key := resource.canonical):
+            # strip at the first { to allow for variables, and than
+            # rpartition at / to allow for variable parts in the path
+            # For example if the canonical path is `/core/locations{tail:.*}`
+            # the index key will be `/core` since index is based on the
+            # url parts split by `/`
+            index_key = index_key.partition("{")[0].rpartition("/")[0]
+        return index_key.rstrip("/") or "/"
+
+    def index_resource(self, resource: AbstractResource) -> None:
+        """Add a resource to the resource index."""
+        resource_key = self._get_resource_index_key(resource)
+        # There may be multiple resources for a canonical path
+        # so we keep them in a list to ensure that registration
+        # order is respected.
+        self._resource_index.setdefault(resource_key, []).append(resource)
+
+    def unindex_resource(self, resource: AbstractResource) -> None:
+        """Remove a resource from the resource index."""
+        resource_key = self._get_resource_index_key(resource)
+        self._resource_index[resource_key].remove(resource)
+
+    def add_resource(self, path: str, *, name: Optional[str] = None) -> Resource:
+        if path and not path.startswith("/"):
+            raise ValueError("path should be started with / or be empty")
+        # Reuse last added resource if path and name are the same
+        if self._resources:
+            resource = self._resources[-1]
+            if resource.name == name and resource.raw_match(path):
+                return cast(Resource, resource)
+        if not ("{" in path or "}" in path or ROUTE_RE.search(path)):
+            resource = PlainResource(path, name=name)
+            self.register_resource(resource)
+            return resource
+        resource = DynamicResource(path, name=name)
+        self.register_resource(resource)
+        return resource
+
+    def add_route(
+        self,
+        method: str,
+        path: str,
+        handler: Union[Handler, Type[AbstractView]],
+        *,
+        name: Optional[str] = None,
+        expect_handler: Optional[_ExpectHandler] = None,
+    ) -> AbstractRoute:
+        resource = self.add_resource(path, name=name)
+        return resource.add_route(method, handler, expect_handler=expect_handler)
+
+    def add_static(
+        self,
+        prefix: str,
+        path: PathLike,
+        *,
+        name: Optional[str] = None,
+        expect_handler: Optional[_ExpectHandler] = None,
+        chunk_size: int = 256 * 1024,
+        show_index: bool = False,
+        follow_symlinks: bool = False,
+        append_version: bool = False,
+    ) -> AbstractResource:
+        """Add static files view.
+
+        prefix - url prefix
+        path - folder with files
+
+        """
+        assert prefix.startswith("/")
+        if prefix.endswith("/"):
+            prefix = prefix[:-1]
+        resource = StaticResource(
+            prefix,
+            path,
+            name=name,
+            expect_handler=expect_handler,
+            chunk_size=chunk_size,
+            show_index=show_index,
+            follow_symlinks=follow_symlinks,
+            append_version=append_version,
+        )
+        self.register_resource(resource)
+        return resource
+
+    def add_head(self, path: str, handler: Handler, **kwargs: Any) -> AbstractRoute:
+        """Shortcut for add_route with method HEAD."""
+        return self.add_route(hdrs.METH_HEAD, path, handler, **kwargs)
+
+    def add_options(self, path: str, handler: Handler, **kwargs: Any) -> AbstractRoute:
+        """Shortcut for add_route with method OPTIONS."""
+        return self.add_route(hdrs.METH_OPTIONS, path, handler, **kwargs)
+
+    def add_get(
+        self,
+        path: str,
+        handler: Handler,
+        *,
+        name: Optional[str] = None,
+        allow_head: bool = True,
+        **kwargs: Any,
+    ) -> AbstractRoute:
+        """Shortcut for add_route with method GET.
+
+        If allow_head is true, another
+        route is added allowing head requests to the same endpoint.
+        """
+        resource = self.add_resource(path, name=name)
+        if allow_head:
+            resource.add_route(hdrs.METH_HEAD, handler, **kwargs)
+        return resource.add_route(hdrs.METH_GET, handler, **kwargs)
+
+    def add_post(self, path: str, handler: Handler, **kwargs: Any) -> AbstractRoute:
+        """Shortcut for add_route with method POST."""
+        return self.add_route(hdrs.METH_POST, path, handler, **kwargs)
+
+    def add_put(self, path: str, handler: Handler, **kwargs: Any) -> AbstractRoute:
+        """Shortcut for add_route with method PUT."""
+        return self.add_route(hdrs.METH_PUT, path, handler, **kwargs)
+
+    def add_patch(self, path: str, handler: Handler, **kwargs: Any) -> AbstractRoute:
+        """Shortcut for add_route with method PATCH."""
+        return self.add_route(hdrs.METH_PATCH, path, handler, **kwargs)
+
+    def add_delete(self, path: str, handler: Handler, **kwargs: Any) -> AbstractRoute:
+        """Shortcut for add_route with method DELETE."""
+        return self.add_route(hdrs.METH_DELETE, path, handler, **kwargs)
+
+    def add_view(
+        self, path: str, handler: Type[AbstractView], **kwargs: Any
+    ) -> AbstractRoute:
+        """Shortcut for add_route with ANY methods for a class-based view."""
+        return self.add_route(hdrs.METH_ANY, path, handler, **kwargs)
+
+    def freeze(self) -> None:
+        super().freeze()
+        for resource in self._resources:
+            resource.freeze()
+
+    def add_routes(self, routes: Iterable[AbstractRouteDef]) -> List[AbstractRoute]:
+        """Append routes to route table.
+
+        Parameter should be a sequence of RouteDef objects.
+
+        Returns a list of registered AbstractRoute instances.
+        """
+        registered_routes = []
+        for route_def in routes:
+            registered_routes.extend(route_def.register(self))
+        return registered_routes
+
+
+def _quote_path(value: str) -> str:
+    if YARL_VERSION < (1, 6):
+        value = value.replace("%", "%25")
+    return URL.build(path=value, encoded=False).raw_path
+
+
+def _unquote_path_safe(value: str) -> str:
+    if "%" not in value:
+        return value
+    return value.replace("%2F", "/").replace("%25", "%")
+
+
+def _requote_path(value: str) -> str:
+    # Quote non-ascii characters and other characters which must be quoted,
+    # but preserve existing %-sequences.
+    result = _quote_path(value)
+    if "%" in value:
+        result = result.replace("%25", "%")
+    return result

deepseek/lib/python3.10/site-packages/aiohttp/worker.py

@@ -0,0 +1,247 @@
+"""Async gunicorn worker for aiohttp.web"""
+
+import asyncio
+import os
+import re
+import signal
+import sys
+from types import FrameType
+from typing import Any, Awaitable, Callable, Optional, Union  # noqa
+
+from gunicorn.config import AccessLogFormat as GunicornAccessLogFormat
+from gunicorn.workers import base
+
+from aiohttp import web
+
+from .helpers import set_result
+from .web_app import Application
+from .web_log import AccessLogger
+
+try:
+    import ssl
+
+    SSLContext = ssl.SSLContext
+except ImportError:  # pragma: no cover
+    ssl = None  # type: ignore[assignment]
+    SSLContext = object  # type: ignore[misc,assignment]
+
+
+__all__ = ("GunicornWebWorker", "GunicornUVLoopWebWorker")
+
+
+class GunicornWebWorker(base.Worker):  # type: ignore[misc,no-any-unimported]
+
+    DEFAULT_AIOHTTP_LOG_FORMAT = AccessLogger.LOG_FORMAT
+    DEFAULT_GUNICORN_LOG_FORMAT = GunicornAccessLogFormat.default
+
+    def __init__(self, *args: Any, **kw: Any) -> None:  # pragma: no cover
+        super().__init__(*args, **kw)
+
+        self._task: Optional[asyncio.Task[None]] = None
+        self.exit_code = 0
+        self._notify_waiter: Optional[asyncio.Future[bool]] = None
+
+    def init_process(self) -> None:
+        # create new event_loop after fork
+        asyncio.get_event_loop().close()
+
+        self.loop = asyncio.new_event_loop()
+        asyncio.set_event_loop(self.loop)
+
+        super().init_process()
+
+    def run(self) -> None:
+        self._task = self.loop.create_task(self._run())
+
+        try:  # ignore all finalization problems
+            self.loop.run_until_complete(self._task)
+        except Exception:
+            self.log.exception("Exception in gunicorn worker")
+        self.loop.run_until_complete(self.loop.shutdown_asyncgens())
+        self.loop.close()
+
+        sys.exit(self.exit_code)
+
+    async def _run(self) -> None:
+        runner = None
+        if isinstance(self.wsgi, Application):
+            app = self.wsgi
+        elif asyncio.iscoroutinefunction(self.wsgi):
+            wsgi = await self.wsgi()
+            if isinstance(wsgi, web.AppRunner):
+                runner = wsgi
+                app = runner.app
+            else:
+                app = wsgi
+        else:
+            raise RuntimeError(
+                "wsgi app should be either Application or "
+                "async function returning Application, got {}".format(self.wsgi)
+            )
+
+        if runner is None:
+            access_log = self.log.access_log if self.cfg.accesslog else None
+            runner = web.AppRunner(
+                app,
+                logger=self.log,
+                keepalive_timeout=self.cfg.keepalive,
+                access_log=access_log,
+                access_log_format=self._get_valid_log_format(
+                    self.cfg.access_log_format
+                ),
+                shutdown_timeout=self.cfg.graceful_timeout / 100 * 95,
+            )
+        await runner.setup()
+
+        ctx = self._create_ssl_context(self.cfg) if self.cfg.is_ssl else None
+
+        runner = runner
+        assert runner is not None
+        server = runner.server
+        assert server is not None
+        for sock in self.sockets:
+            site = web.SockSite(
+                runner,
+                sock,
+                ssl_context=ctx,
+            )
+            await site.start()
+
+        # If our parent changed then we shut down.
+        pid = os.getpid()
+        try:
+            while self.alive:  # type: ignore[has-type]
+                self.notify()
+
+                cnt = server.requests_count
+                if self.max_requests and cnt > self.max_requests:
+                    self.alive = False
+                    self.log.info("Max requests, shutting down: %s", self)
+
+                elif pid == os.getpid() and self.ppid != os.getppid():
+                    self.alive = False
+                    self.log.info("Parent changed, shutting down: %s", self)
+                else:
+                    await self._wait_next_notify()
+        except BaseException:
+            pass
+
+        await runner.cleanup()
+
+    def _wait_next_notify(self) -> "asyncio.Future[bool]":
+        self._notify_waiter_done()
+
+        loop = self.loop
+        assert loop is not None
+        self._notify_waiter = waiter = loop.create_future()
+        self.loop.call_later(1.0, self._notify_waiter_done, waiter)
+
+        return waiter
+
+    def _notify_waiter_done(
+        self, waiter: Optional["asyncio.Future[bool]"] = None
+    ) -> None:
+        if waiter is None:
+            waiter = self._notify_waiter
+        if waiter is not None:
+            set_result(waiter, True)
+
+        if waiter is self._notify_waiter:
+            self._notify_waiter = None
+
+    def init_signals(self) -> None:
+        # Set up signals through the event loop API.
+
+        self.loop.add_signal_handler(
+            signal.SIGQUIT, self.handle_quit, signal.SIGQUIT, None
+        )
+
+        self.loop.add_signal_handler(
+            signal.SIGTERM, self.handle_exit, signal.SIGTERM, None
+        )
+
+        self.loop.add_signal_handler(
+            signal.SIGINT, self.handle_quit, signal.SIGINT, None
+        )
+
+        self.loop.add_signal_handler(
+            signal.SIGWINCH, self.handle_winch, signal.SIGWINCH, None
+        )
+
+        self.loop.add_signal_handler(
+            signal.SIGUSR1, self.handle_usr1, signal.SIGUSR1, None
+        )
+
+        self.loop.add_signal_handler(
+            signal.SIGABRT, self.handle_abort, signal.SIGABRT, None
+        )
+
+        # Don't let SIGTERM and SIGUSR1 disturb active requests
+        # by interrupting system calls
+        signal.siginterrupt(signal.SIGTERM, False)
+        signal.siginterrupt(signal.SIGUSR1, False)
+        # Reset signals so Gunicorn doesn't swallow subprocess return codes
+        # See: https://github.com/aio-libs/aiohttp/issues/6130
+
+    def handle_quit(self, sig: int, frame: Optional[FrameType]) -> None:
+        self.alive = False
+
+        # worker_int callback
+        self.cfg.worker_int(self)
+
+        # wakeup closing process
+        self._notify_waiter_done()
+
+    def handle_abort(self, sig: int, frame: Optional[FrameType]) -> None:
+        self.alive = False
+        self.exit_code = 1
+        self.cfg.worker_abort(self)
+        sys.exit(1)
+
+    @staticmethod
+    def _create_ssl_context(cfg: Any) -> "SSLContext":
+        """Creates SSLContext instance for usage in asyncio.create_server.
+
+        See ssl.SSLSocket.__init__ for more details.
+        """
+        if ssl is None:  # pragma: no cover
+            raise RuntimeError("SSL is not supported.")
+
+        ctx = ssl.SSLContext(cfg.ssl_version)
+        ctx.load_cert_chain(cfg.certfile, cfg.keyfile)
+        ctx.verify_mode = cfg.cert_reqs
+        if cfg.ca_certs:
+            ctx.load_verify_locations(cfg.ca_certs)
+        if cfg.ciphers:
+            ctx.set_ciphers(cfg.ciphers)
+        return ctx
+
+    def _get_valid_log_format(self, source_format: str) -> str:
+        if source_format == self.DEFAULT_GUNICORN_LOG_FORMAT:
+            return self.DEFAULT_AIOHTTP_LOG_FORMAT
+        elif re.search(r"%\([^\)]+\)", source_format):
+            raise ValueError(
+                "Gunicorn's style options in form of `%(name)s` are not "
+                "supported for the log formatting. Please use aiohttp's "
+                "format specification to configure access log formatting: "
+                "http://docs.aiohttp.org/en/stable/logging.html"
+                "#format-specification"
+            )
+        else:
+            return source_format
+
+
+class GunicornUVLoopWebWorker(GunicornWebWorker):
+    def init_process(self) -> None:
+        import uvloop
+
+        # Close any existing event loop before setting a
+        # new policy.
+        asyncio.get_event_loop().close()
+
+        # Setup uvloop policy, so that every
+        # asyncio.get_event_loop() will create an instance
+        # of uvloop event loop.
+        asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())
+
+        super().init_process()