Update main.py

main.py

@@ -1,3 +1,170 @@
-from g4f.api import run_api
+import logging
+import json
+import uvicorn
+import nest_asyncio
+import random
+
+from fastapi import FastAPI, Response, Request
+from fastapi.responses import StreamingResponse, RedirectResponse, HTMLResponse, JSONResponse
+from fastapi.exceptions import RequestValidationError
+from starlette.status import HTTP_422_UNPROCESSABLE_ENTITY
+from fastapi.encoders import jsonable_encoder
+from pydantic import BaseModel
+from typing import List, Union
+
+import g4f
+import g4f.debug
+from g4f.client import Client
+from g4f.typing import Messages
+
+class ChatCompletionsConfig(BaseModel):
+    messages: Messages
+    model: str
+    provider: Union[str, None] = None
+    stream: bool = False
+    temperature: Union[float, None] = None
+    max_tokens: Union[int, None] = None
+    stop: Union[list[str], str, None] = None
+    api_key: Union[str, None] = None
+
+with open("./p.txt", "r", encoding="utf-8") as f:
+    pr = f.readlines()
+
+class Api:
+    def __init__(self, engine: g4f, debug: bool = True, sentry: bool = False,
+                 list_ignored_providers: List[str] = None) -> None:
+        self.engine = engine
+        self.debug = debug
+        self.sentry = sentry
+        self.list_ignored_providers = list_ignored_providers
+
+        if debug:
+            g4f.debug.logging = True
+        
+        self.mkclient()
+
+        nest_asyncio.apply()
+        self.app = FastAPI()
+
+        self.routes()
+        self.register_validation_exception_handler()
+
+    def mkclient(self):
+        if self.n >= 5:
+            self.client = Client(proxies="http://" + random.choice(pr))
+            self.n = 0
+        
+        self.n += 1
+
+    def register_validation_exception_handler(self):
+        @self.app.exception_handler(RequestValidationError)
+        async def validation_exception_handler(request: Request, exc: RequestValidationError):
+            details = exc.errors()
+            modified_details = []
+            for error in details:
+                modified_details.append(
+                    {
+                        "loc": error["loc"],
+                        "message": error["msg"],
+                        "type": error["type"],
+                    }
+                )
+            return JSONResponse(
+                status_code=HTTP_422_UNPROCESSABLE_ENTITY,
+                content=jsonable_encoder({"detail": modified_details}),
+            )
+
+    def routes(self):
+        @self.app.get("/")
+        async def read_root():
+            return RedirectResponse("/v1", 302)
+
+        @self.app.get("/v1")
+        async def read_root_v1():
+            return HTMLResponse('g4f API: Go to '
+                                '<a href="/v1/chat/completions">chat/completions</a> '
+                                'or <a href="/v1/models">models</a>.')
+
+        @self.app.get("/v1/models")
+        async def models():
+            model_list = dict(
+                (model, g4f.ModelUtils.convert[model])
+                for model in g4f.Model.__all__()
+            )
+            model_list = [{
+                'id': model_id,
+                'object': 'model',
+                'created': 0,
+                'owned_by': model.base_provider
+            } for model_id, model in model_list.items()]
+            return JSONResponse(model_list)
+
+        @self.app.get("/v1/models/{model_name}")
+        async def model_info(model_name: str):
+            try:
+                model_info = g4f.ModelUtils.convert[model_name]
+                return JSONResponse({
+                    'id': model_name,
+                    'object': 'model',
+                    'created': 0,
+                    'owned_by': model_info.base_provider
+                })
+            except:
+                return JSONResponse({"error": "The model does not exist."})
+
+        @self.app.post("/v1/chat/completions")
+        async def chat_completions(config: ChatCompletionsConfig = None, request: Request = None, provider: str = None):
+            self.mkclient() # if reached, change the client
+            try:
+                config.provider = provider if config.provider is None else config.provider
+                if config.api_key is None and request is not None:
+                    auth_header = request.headers.get("Authorization")
+                    if auth_header is not None:
+                        auth_header = auth_header.split(None, 1)[-1]
+                        if auth_header and auth_header != "Bearer":
+                            config.api_key = auth_header
+                response = self.client.chat.completions.create(
+                    **config.dict(exclude_none=True),
+                    ignored=self.list_ignored_providers
+                )
+            except Exception as e:
+                logging.exception(e)
+                return Response(content=format_exception(e, config), status_code=500, media_type="application/json")
+
+            if not config.stream:
+                return JSONResponse(response.to_json())
+
+            def streaming():
+                try:
+                    for chunk in response:
+                        yield f"data: {json.dumps(chunk.to_json())}\n\n"
+                except GeneratorExit:
+                    pass
+                except Exception as e:
+                    logging.exception(e)
+                    yield f'data: {format_exception(e, config)}'
+
+            return StreamingResponse(streaming(), media_type="text/event-stream")
+
+        @self.app.post("/v1/completions")
+        async def completions():
+            return Response(content=json.dumps({'info': 'Not working yet.'}, indent=4), media_type="application/json")
+
+    def run(self, ip, use_colors : bool = False):
+        split_ip = ip.split(":")
+        uvicorn.run(app=self.app, host=split_ip[0], port=int(split_ip[1]), use_colors=use_colors)
+
+def format_exception(e: Exception, config: ChatCompletionsConfig) -> str:
+    last_provider = g4f.get_last_provider(True)
+    return json.dumps({
+        "error": {"message": f"{e.__class__.__name__}: {e}"},
+        "model": last_provider.get("model") if last_provider else config.model,
+        "provider": last_provider.get("name") if last_provider else config.provider
+    })
+
+def run_api(host: str = '0.0.0.0', port: int = 1337, debug: bool = False, use_colors=True) -> None:
+    print(f'Starting server... [g4f v-{g4f.version.utils.current_version}]')
+    app = Api(engine=g4f, debug=debug)
+    app.run(f"{host}:{port}", use_colors=use_colors)
 
 run_api(host="0.0.0.0", port=7860)