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import json
import os
import signal
import sys
import re
from modules.timer import startup_timer
def gradio_server_name():
from modules.shared_cmd_options import cmd_opts
if cmd_opts.server_name:
return cmd_opts.server_name
else:
return "0.0.0.0" if cmd_opts.listen else None
def fix_torch_version():
import torch
# Truncate version number of nightly/local build of PyTorch to not cause exceptions with CodeFormer or Safetensors
if ".dev" in torch.__version__ or "+git" in torch.__version__:
torch.__long_version__ = torch.__version__
torch.__version__ = re.search(r'[\d.]+[\d]', torch.__version__).group(0)
def fix_asyncio_event_loop_policy():
"""
The default `asyncio` event loop policy only automatically creates
event loops in the main threads. Other threads must create event
loops explicitly or `asyncio.get_event_loop` (and therefore
`.IOLoop.current`) will fail. Installing this policy allows event
loops to be created automatically on any thread, matching the
behavior of Tornado versions prior to 5.0 (or 5.0 on Python 2).
"""
import asyncio
if sys.platform == "win32" and hasattr(asyncio, "WindowsSelectorEventLoopPolicy"):
# "Any thread" and "selector" should be orthogonal, but there's not a clean
# interface for composing policies so pick the right base.
_BasePolicy = asyncio.WindowsSelectorEventLoopPolicy # type: ignore
else:
_BasePolicy = asyncio.DefaultEventLoopPolicy
class AnyThreadEventLoopPolicy(_BasePolicy): # type: ignore
"""Event loop policy that allows loop creation on any thread.
Usage::
asyncio.set_event_loop_policy(AnyThreadEventLoopPolicy())
"""
def get_event_loop(self) -> asyncio.AbstractEventLoop:
try:
return super().get_event_loop()
except (RuntimeError, AssertionError):
# This was an AssertionError in python 3.4.2 (which ships with debian jessie)
# and changed to a RuntimeError in 3.4.3.
# "There is no current event loop in thread %r"
loop = self.new_event_loop()
self.set_event_loop(loop)
return loop
asyncio.set_event_loop_policy(AnyThreadEventLoopPolicy())
def restore_config_state_file():
from modules import shared, config_states
config_state_file = shared.opts.restore_config_state_file
if config_state_file == "":
return
shared.opts.restore_config_state_file = ""
shared.opts.save(shared.config_filename)
if os.path.isfile(config_state_file):
print(f"*** About to restore extension state from file: {config_state_file}")
with open(config_state_file, "r", encoding="utf-8") as f:
config_state = json.load(f)
config_states.restore_extension_config(config_state)
startup_timer.record("restore extension config")
elif config_state_file:
print(f"!!! Config state backup not found: {config_state_file}")
def validate_tls_options():
from modules.shared_cmd_options import cmd_opts
if not (cmd_opts.tls_keyfile and cmd_opts.tls_certfile):
return
try:
if not os.path.exists(cmd_opts.tls_keyfile):
print("Invalid path to TLS keyfile given")
if not os.path.exists(cmd_opts.tls_certfile):
print(f"Invalid path to TLS certfile: '{cmd_opts.tls_certfile}'")
except TypeError:
cmd_opts.tls_keyfile = cmd_opts.tls_certfile = None
print("TLS setup invalid, running webui without TLS")
else:
print("Running with TLS")
startup_timer.record("TLS")
def get_gradio_auth_creds():
"""
Convert the gradio_auth and gradio_auth_path commandline arguments into
an iterable of (username, password) tuples.
"""
from modules.shared_cmd_options import cmd_opts
def process_credential_line(s):
s = s.strip()
if not s:
return None
return tuple(s.split(':', 1))
if cmd_opts.gradio_auth:
for cred in cmd_opts.gradio_auth.split(','):
cred = process_credential_line(cred)
if cred:
yield cred
if cmd_opts.gradio_auth_path:
with open(cmd_opts.gradio_auth_path, 'r', encoding="utf8") as file:
for line in file.readlines():
for cred in line.strip().split(','):
cred = process_credential_line(cred)
if cred:
yield cred
def dumpstacks():
import threading
import traceback
id2name = {th.ident: th.name for th in threading.enumerate()}
code = []
for threadId, stack in sys._current_frames().items():
code.append(f"\n# Thread: {id2name.get(threadId, '')}({threadId})")
for filename, lineno, name, line in traceback.extract_stack(stack):
code.append(f"""File: "{filename}", line {lineno}, in {name}""")
if line:
code.append(" " + line.strip())
print("\n".join(code))
def configure_sigint_handler():
# make the program just exit at ctrl+c without waiting for anything
def sigint_handler(sig, frame):
print(f'Interrupted with signal {sig} in {frame}')
dumpstacks()
os._exit(0)
if not os.environ.get("COVERAGE_RUN"):
# Don't install the immediate-quit handler when running under coverage,
# as then the coverage report won't be generated.
signal.signal(signal.SIGINT, sigint_handler)
def configure_opts_onchange():
from modules import shared, sd_models, sd_vae, ui_tempdir, sd_hijack
from modules.call_queue import wrap_queued_call
shared.opts.onchange("sd_model_checkpoint", wrap_queued_call(lambda: sd_models.reload_model_weights()), call=False)
shared.opts.onchange("sd_vae", wrap_queued_call(lambda: sd_vae.reload_vae_weights()), call=False)
shared.opts.onchange("sd_vae_overrides_per_model_preferences", wrap_queued_call(lambda: sd_vae.reload_vae_weights()), call=False)
shared.opts.onchange("temp_dir", ui_tempdir.on_tmpdir_changed)
shared.opts.onchange("gradio_theme", shared.reload_gradio_theme)
shared.opts.onchange("cross_attention_optimization", wrap_queued_call(lambda: sd_hijack.model_hijack.redo_hijack(shared.sd_model)), call=False)
startup_timer.record("opts onchange")
def setup_middleware(app):
from starlette.middleware.gzip import GZipMiddleware
app.middleware_stack = None # reset current middleware to allow modifying user provided list
app.add_middleware(GZipMiddleware, minimum_size=1000)
configure_cors_middleware(app)
app.build_middleware_stack() # rebuild middleware stack on-the-fly
def configure_cors_middleware(app):
from starlette.middleware.cors import CORSMiddleware
from modules.shared_cmd_options import cmd_opts
cors_options = {
"allow_methods": ["*"],
"allow_headers": ["*"],
"allow_credentials": True,
}
if cmd_opts.cors_allow_origins:
cors_options["allow_origins"] = cmd_opts.cors_allow_origins.split(',')
if cmd_opts.cors_allow_origins_regex:
cors_options["allow_origin_regex"] = cmd_opts.cors_allow_origins_regex
app.add_middleware(CORSMiddleware, **cors_options)
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