mirror of
https://github.com/open-webui/open-webui
synced 2024-11-26 05:51:12 +00:00
704 lines
24 KiB
Python
704 lines
24 KiB
Python
import asyncio
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import hashlib
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import json
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import logging
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from pathlib import Path
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from typing import Literal, Optional, overload
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import aiohttp
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import requests
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from open_webui.apps.webui.models.models import Models
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from open_webui.config import (
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CACHE_DIR,
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CORS_ALLOW_ORIGIN,
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ENABLE_OPENAI_API,
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OPENAI_API_BASE_URLS,
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OPENAI_API_KEYS,
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OPENAI_API_CONFIGS,
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AppConfig,
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)
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from open_webui.env import (
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AIOHTTP_CLIENT_TIMEOUT,
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AIOHTTP_CLIENT_TIMEOUT_OPENAI_MODEL_LIST,
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ENABLE_FORWARD_USER_INFO_HEADERS,
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)
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from open_webui.constants import ERROR_MESSAGES
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from open_webui.env import ENV, SRC_LOG_LEVELS
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from fastapi import Depends, FastAPI, HTTPException, Request
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.responses import FileResponse, StreamingResponse
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from pydantic import BaseModel
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from starlette.background import BackgroundTask
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from open_webui.utils.payload import (
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apply_model_params_to_body_openai,
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apply_model_system_prompt_to_body,
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)
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from open_webui.utils.utils import get_admin_user, get_verified_user
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log = logging.getLogger(__name__)
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log.setLevel(SRC_LOG_LEVELS["OPENAI"])
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app = FastAPI(
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docs_url="/docs" if ENV == "dev" else None,
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openapi_url="/openapi.json" if ENV == "dev" else None,
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redoc_url=None,
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)
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app.add_middleware(
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CORSMiddleware,
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allow_origins=CORS_ALLOW_ORIGIN,
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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app.state.config = AppConfig()
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app.state.config.ENABLE_OPENAI_API = ENABLE_OPENAI_API
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app.state.config.OPENAI_API_BASE_URLS = OPENAI_API_BASE_URLS
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app.state.config.OPENAI_API_KEYS = OPENAI_API_KEYS
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app.state.config.OPENAI_API_CONFIGS = OPENAI_API_CONFIGS
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app.state.MODELS = {}
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@app.middleware("http")
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async def check_url(request: Request, call_next):
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if len(app.state.MODELS) == 0:
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await get_all_models()
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response = await call_next(request)
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return response
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@app.get("/config")
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async def get_config(user=Depends(get_admin_user)):
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return {
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"ENABLE_OPENAI_API": app.state.config.ENABLE_OPENAI_API,
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"OPENAI_API_BASE_URLS": app.state.config.OPENAI_API_BASE_URLS,
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"OPENAI_API_KEYS": app.state.config.OPENAI_API_KEYS,
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"OPENAI_API_CONFIGS": app.state.config.OPENAI_API_CONFIGS,
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}
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class OpenAIConfigForm(BaseModel):
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ENABLE_OPENAI_API: Optional[bool] = None
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OPENAI_API_BASE_URLS: list[str]
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OPENAI_API_KEYS: list[str]
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OPENAI_API_CONFIGS: dict
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@app.post("/config/update")
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async def update_config(form_data: OpenAIConfigForm, user=Depends(get_admin_user)):
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app.state.config.ENABLE_OPENAI_API = form_data.ENABLE_OPENAI_API
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app.state.config.OPENAI_API_BASE_URLS = form_data.OPENAI_API_BASE_URLS
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app.state.config.OPENAI_API_KEYS = form_data.OPENAI_API_KEYS
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# Check if API KEYS length is same than API URLS length
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if len(app.state.config.OPENAI_API_KEYS) != len(
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app.state.config.OPENAI_API_BASE_URLS
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):
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if len(app.state.config.OPENAI_API_KEYS) > len(
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app.state.config.OPENAI_API_BASE_URLS
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):
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app.state.config.OPENAI_API_KEYS = app.state.config.OPENAI_API_KEYS[
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: len(app.state.config.OPENAI_API_BASE_URLS)
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]
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else:
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app.state.config.OPENAI_API_KEYS += [""] * (
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len(app.state.config.OPENAI_API_BASE_URLS)
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- len(app.state.config.OPENAI_API_KEYS)
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)
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app.state.config.OPENAI_API_CONFIGS = form_data.OPENAI_API_CONFIGS
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# Remove any extra configs
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config_urls = app.state.config.OPENAI_API_CONFIGS.keys()
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for idx, url in enumerate(app.state.config.OPENAI_API_BASE_URLS):
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if url not in config_urls:
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app.state.config.OPENAI_API_CONFIGS.pop(url, None)
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return {
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"ENABLE_OPENAI_API": app.state.config.ENABLE_OPENAI_API,
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"OPENAI_API_BASE_URLS": app.state.config.OPENAI_API_BASE_URLS,
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"OPENAI_API_KEYS": app.state.config.OPENAI_API_KEYS,
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"OPENAI_API_CONFIGS": app.state.config.OPENAI_API_CONFIGS,
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}
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@app.post("/audio/speech")
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async def speech(request: Request, user=Depends(get_verified_user)):
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idx = None
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try:
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idx = app.state.config.OPENAI_API_BASE_URLS.index("https://api.openai.com/v1")
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body = await request.body()
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name = hashlib.sha256(body).hexdigest()
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SPEECH_CACHE_DIR = Path(CACHE_DIR).joinpath("./audio/speech/")
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SPEECH_CACHE_DIR.mkdir(parents=True, exist_ok=True)
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file_path = SPEECH_CACHE_DIR.joinpath(f"{name}.mp3")
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file_body_path = SPEECH_CACHE_DIR.joinpath(f"{name}.json")
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# Check if the file already exists in the cache
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if file_path.is_file():
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return FileResponse(file_path)
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headers = {}
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headers["Authorization"] = f"Bearer {app.state.config.OPENAI_API_KEYS[idx]}"
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headers["Content-Type"] = "application/json"
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if "openrouter.ai" in app.state.config.OPENAI_API_BASE_URLS[idx]:
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headers["HTTP-Referer"] = "https://openwebui.com/"
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headers["X-Title"] = "Open WebUI"
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if ENABLE_FORWARD_USER_INFO_HEADERS:
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headers["X-OpenWebUI-User-Name"] = user.name
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headers["X-OpenWebUI-User-Id"] = user.id
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headers["X-OpenWebUI-User-Email"] = user.email
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headers["X-OpenWebUI-User-Role"] = user.role
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r = None
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try:
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r = requests.post(
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url=f"{app.state.config.OPENAI_API_BASE_URLS[idx]}/audio/speech",
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data=body,
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headers=headers,
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stream=True,
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)
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r.raise_for_status()
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# Save the streaming content to a file
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with open(file_path, "wb") as f:
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for chunk in r.iter_content(chunk_size=8192):
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f.write(chunk)
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with open(file_body_path, "w") as f:
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json.dump(json.loads(body.decode("utf-8")), f)
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# Return the saved file
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return FileResponse(file_path)
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except Exception as e:
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log.exception(e)
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error_detail = "Open WebUI: Server Connection Error"
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if r is not None:
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try:
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res = r.json()
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if "error" in res:
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error_detail = f"External: {res['error']}"
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except Exception:
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error_detail = f"External: {e}"
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raise HTTPException(
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status_code=r.status_code if r else 500, detail=error_detail
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)
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except ValueError:
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raise HTTPException(status_code=401, detail=ERROR_MESSAGES.OPENAI_NOT_FOUND)
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async def aiohttp_get(url, key=None):
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timeout = aiohttp.ClientTimeout(total=AIOHTTP_CLIENT_TIMEOUT_OPENAI_MODEL_LIST)
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try:
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headers = {"Authorization": f"Bearer {key}"} if key else {}
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async with aiohttp.ClientSession(timeout=timeout, trust_env=True) as session:
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async with session.get(url, headers=headers) as response:
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return await response.json()
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except Exception as e:
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# Handle connection error here
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log.error(f"Connection error: {e}")
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return None
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async def cleanup_response(
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response: Optional[aiohttp.ClientResponse],
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session: Optional[aiohttp.ClientSession],
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):
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if response:
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response.close()
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if session:
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await session.close()
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def merge_models_lists(model_lists):
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log.debug(f"merge_models_lists {model_lists}")
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merged_list = []
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for idx, models in enumerate(model_lists):
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if models is not None and "error" not in models:
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merged_list.extend(
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[
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{
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**model,
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"name": model.get("name", model["id"]),
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"owned_by": "openai",
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"openai": model,
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"urlIdx": idx,
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}
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for model in models
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if "api.openai.com"
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not in app.state.config.OPENAI_API_BASE_URLS[idx]
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or not any(
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name in model["id"]
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for name in [
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"babbage",
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"dall-e",
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"davinci",
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"embedding",
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"tts",
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"whisper",
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]
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)
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]
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)
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return merged_list
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async def get_all_models_raw() -> list:
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if not app.state.config.ENABLE_OPENAI_API:
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return []
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# Check if API KEYS length is same than API URLS length
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num_urls = len(app.state.config.OPENAI_API_BASE_URLS)
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num_keys = len(app.state.config.OPENAI_API_KEYS)
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if num_keys != num_urls:
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# if there are more keys than urls, remove the extra keys
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if num_keys > num_urls:
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new_keys = app.state.config.OPENAI_API_KEYS[:num_urls]
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app.state.config.OPENAI_API_KEYS = new_keys
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# if there are more urls than keys, add empty keys
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else:
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app.state.config.OPENAI_API_KEYS += [""] * (num_urls - num_keys)
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tasks = []
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for idx, url in enumerate(app.state.config.OPENAI_API_BASE_URLS):
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if url not in app.state.config.OPENAI_API_CONFIGS:
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tasks.append(
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aiohttp_get(f"{url}/models", app.state.config.OPENAI_API_KEYS[idx])
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)
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else:
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api_config = app.state.config.OPENAI_API_CONFIGS.get(url, {})
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enable = api_config.get("enable", True)
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model_ids = api_config.get("model_ids", [])
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if enable:
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if len(model_ids) == 0:
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tasks.append(
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aiohttp_get(
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f"{url}/models", app.state.config.OPENAI_API_KEYS[idx]
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)
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)
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else:
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model_list = {
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"object": "list",
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"data": [
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{
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"id": model_id,
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"name": model_id,
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"owned_by": "openai",
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"openai": {"id": model_id},
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"urlIdx": idx,
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}
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for model_id in model_ids
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],
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}
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tasks.append(asyncio.ensure_future(asyncio.sleep(0, model_list)))
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responses = await asyncio.gather(*tasks)
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for idx, response in enumerate(responses):
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if response:
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url = app.state.config.OPENAI_API_BASE_URLS[idx]
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api_config = app.state.config.OPENAI_API_CONFIGS.get(url, {})
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prefix_id = api_config.get("prefix_id", None)
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if prefix_id:
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for model in response["data"]:
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model["id"] = f"{prefix_id}.{model['id']}"
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log.debug(f"get_all_models:responses() {responses}")
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return responses
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@overload
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async def get_all_models(raw: Literal[True]) -> list: ...
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@overload
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async def get_all_models(raw: Literal[False] = False) -> dict[str, list]: ...
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async def get_all_models(raw=False) -> dict[str, list] | list:
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log.info("get_all_models()")
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if not app.state.config.ENABLE_OPENAI_API:
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return [] if raw else {"data": []}
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responses = await get_all_models_raw()
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if raw:
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return responses
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def extract_data(response):
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if response and "data" in response:
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return response["data"]
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if isinstance(response, list):
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return response
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return None
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models = {"data": merge_models_lists(map(extract_data, responses))}
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log.debug(f"models: {models}")
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app.state.MODELS = {model["id"]: model for model in models["data"]}
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return models
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@app.get("/models")
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@app.get("/models/{url_idx}")
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async def get_models(url_idx: Optional[int] = None, user=Depends(get_verified_user)):
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if url_idx is None:
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models = await get_all_models()
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# TODO: Check User Group and Filter Models
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# if app.state.config.ENABLE_MODEL_FILTER:
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# if user.role == "user":
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# models["data"] = list(
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# filter(
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# lambda model: model["id"] in app.state.config.MODEL_FILTER_LIST,
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# models["data"],
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# )
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# )
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# return models
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return models
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else:
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url = app.state.config.OPENAI_API_BASE_URLS[url_idx]
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key = app.state.config.OPENAI_API_KEYS[url_idx]
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headers = {}
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headers["Authorization"] = f"Bearer {key}"
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headers["Content-Type"] = "application/json"
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if ENABLE_FORWARD_USER_INFO_HEADERS:
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headers["X-OpenWebUI-User-Name"] = user.name
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headers["X-OpenWebUI-User-Id"] = user.id
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headers["X-OpenWebUI-User-Email"] = user.email
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headers["X-OpenWebUI-User-Role"] = user.role
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r = None
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timeout = aiohttp.ClientTimeout(total=AIOHTTP_CLIENT_TIMEOUT_OPENAI_MODEL_LIST)
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async with aiohttp.ClientSession(timeout=timeout) as session:
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try:
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async with session.get(f"{url}/models", headers=headers) as r:
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if r.status != 200:
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# Extract response error details if available
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error_detail = f"HTTP Error: {r.status}"
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res = await r.json()
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if "error" in res:
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error_detail = f"External Error: {res['error']}"
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raise Exception(error_detail)
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response_data = await r.json()
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# Check if we're calling OpenAI API based on the URL
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if "api.openai.com" in url:
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# Filter models according to the specified conditions
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response_data["data"] = [
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model
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for model in response_data.get("data", [])
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if not any(
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name in model["id"]
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for name in [
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"babbage",
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"dall-e",
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"davinci",
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"embedding",
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"tts",
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"whisper",
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]
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)
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]
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return response_data
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except aiohttp.ClientError as e:
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# ClientError covers all aiohttp requests issues
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log.exception(f"Client error: {str(e)}")
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# Handle aiohttp-specific connection issues, timeout etc.
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raise HTTPException(
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status_code=500, detail="Open WebUI: Server Connection Error"
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)
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except Exception as e:
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log.exception(f"Unexpected error: {e}")
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# Generic error handler in case parsing JSON or other steps fail
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error_detail = f"Unexpected error: {str(e)}"
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raise HTTPException(status_code=500, detail=error_detail)
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class ConnectionVerificationForm(BaseModel):
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url: str
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key: str
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@app.post("/verify")
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async def verify_connection(
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form_data: ConnectionVerificationForm, user=Depends(get_admin_user)
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):
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url = form_data.url
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key = form_data.key
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headers = {}
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headers["Authorization"] = f"Bearer {key}"
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headers["Content-Type"] = "application/json"
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timeout = aiohttp.ClientTimeout(total=AIOHTTP_CLIENT_TIMEOUT_OPENAI_MODEL_LIST)
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async with aiohttp.ClientSession(timeout=timeout) as session:
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try:
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async with session.get(f"{url}/models", headers=headers) as r:
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if r.status != 200:
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# Extract response error details if available
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error_detail = f"HTTP Error: {r.status}"
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res = await r.json()
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if "error" in res:
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error_detail = f"External Error: {res['error']}"
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raise Exception(error_detail)
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response_data = await r.json()
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return response_data
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except aiohttp.ClientError as e:
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# ClientError covers all aiohttp requests issues
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log.exception(f"Client error: {str(e)}")
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# Handle aiohttp-specific connection issues, timeout etc.
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raise HTTPException(
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status_code=500, detail="Open WebUI: Server Connection Error"
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)
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except Exception as e:
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log.exception(f"Unexpected error: {e}")
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# Generic error handler in case parsing JSON or other steps fail
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error_detail = f"Unexpected error: {str(e)}"
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raise HTTPException(status_code=500, detail=error_detail)
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@app.post("/chat/completions")
|
|
async def generate_chat_completion(
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form_data: dict,
|
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user=Depends(get_verified_user),
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bypass_filter: Optional[bool] = False,
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):
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idx = 0
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payload = {**form_data}
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|
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if "metadata" in payload:
|
|
del payload["metadata"]
|
|
|
|
model_id = form_data.get("model")
|
|
|
|
# TODO: Check User Group and Filter Models
|
|
# if not bypass_filter:
|
|
# if app.state.config.ENABLE_MODEL_FILTER:
|
|
# if user.role == "user" and model_id not in app.state.config.MODEL_FILTER_LIST:
|
|
# raise HTTPException(
|
|
# status_code=403,
|
|
# detail="Model not found",
|
|
# )
|
|
|
|
model_info = Models.get_model_by_id(model_id)
|
|
|
|
if model_info:
|
|
if model_info.base_model_id:
|
|
payload["model"] = model_info.base_model_id
|
|
|
|
params = model_info.params.model_dump()
|
|
payload = apply_model_params_to_body_openai(params, payload)
|
|
payload = apply_model_system_prompt_to_body(params, payload, user)
|
|
|
|
try:
|
|
model = app.state.MODELS[payload.get("model")]
|
|
idx = model["urlIdx"]
|
|
except Exception as e:
|
|
raise HTTPException(status_code=404, detail="Model not found")
|
|
|
|
api_config = app.state.config.OPENAI_API_CONFIGS.get(
|
|
app.state.config.OPENAI_API_BASE_URLS[idx], {}
|
|
)
|
|
prefix_id = api_config.get("prefix_id", None)
|
|
|
|
if prefix_id:
|
|
payload["model"] = payload["model"].replace(f"{prefix_id}.", "")
|
|
|
|
if "pipeline" in model and model.get("pipeline"):
|
|
payload["user"] = {
|
|
"name": user.name,
|
|
"id": user.id,
|
|
"email": user.email,
|
|
"role": user.role,
|
|
}
|
|
|
|
url = app.state.config.OPENAI_API_BASE_URLS[idx]
|
|
key = app.state.config.OPENAI_API_KEYS[idx]
|
|
is_o1 = payload["model"].lower().startswith("o1-")
|
|
|
|
# Change max_completion_tokens to max_tokens (Backward compatible)
|
|
if "api.openai.com" not in url and not is_o1:
|
|
if "max_completion_tokens" in payload:
|
|
# Remove "max_completion_tokens" from the payload
|
|
payload["max_tokens"] = payload["max_completion_tokens"]
|
|
del payload["max_completion_tokens"]
|
|
else:
|
|
if is_o1 and "max_tokens" in payload:
|
|
payload["max_completion_tokens"] = payload["max_tokens"]
|
|
del payload["max_tokens"]
|
|
if "max_tokens" in payload and "max_completion_tokens" in payload:
|
|
del payload["max_tokens"]
|
|
|
|
# Fix: O1 does not support the "system" parameter, Modify "system" to "user"
|
|
if is_o1 and payload["messages"][0]["role"] == "system":
|
|
payload["messages"][0]["role"] = "user"
|
|
|
|
# Convert the modified body back to JSON
|
|
payload = json.dumps(payload)
|
|
|
|
log.debug(payload)
|
|
|
|
headers = {}
|
|
headers["Authorization"] = f"Bearer {key}"
|
|
headers["Content-Type"] = "application/json"
|
|
if "openrouter.ai" in app.state.config.OPENAI_API_BASE_URLS[idx]:
|
|
headers["HTTP-Referer"] = "https://openwebui.com/"
|
|
headers["X-Title"] = "Open WebUI"
|
|
if ENABLE_FORWARD_USER_INFO_HEADERS:
|
|
headers["X-OpenWebUI-User-Name"] = user.name
|
|
headers["X-OpenWebUI-User-Id"] = user.id
|
|
headers["X-OpenWebUI-User-Email"] = user.email
|
|
headers["X-OpenWebUI-User-Role"] = user.role
|
|
|
|
r = None
|
|
session = None
|
|
streaming = False
|
|
response = None
|
|
|
|
try:
|
|
session = aiohttp.ClientSession(
|
|
trust_env=True, timeout=aiohttp.ClientTimeout(total=AIOHTTP_CLIENT_TIMEOUT)
|
|
)
|
|
r = await session.request(
|
|
method="POST",
|
|
url=f"{url}/chat/completions",
|
|
data=payload,
|
|
headers=headers,
|
|
)
|
|
|
|
# Check if response is SSE
|
|
if "text/event-stream" in r.headers.get("Content-Type", ""):
|
|
streaming = True
|
|
return StreamingResponse(
|
|
r.content,
|
|
status_code=r.status,
|
|
headers=dict(r.headers),
|
|
background=BackgroundTask(
|
|
cleanup_response, response=r, session=session
|
|
),
|
|
)
|
|
else:
|
|
try:
|
|
response = await r.json()
|
|
except Exception as e:
|
|
log.error(e)
|
|
response = await r.text()
|
|
|
|
r.raise_for_status()
|
|
return response
|
|
except Exception as e:
|
|
log.exception(e)
|
|
error_detail = "Open WebUI: Server Connection Error"
|
|
if isinstance(response, dict):
|
|
if "error" in response:
|
|
error_detail = f"{response['error']['message'] if 'message' in response['error'] else response['error']}"
|
|
elif isinstance(response, str):
|
|
error_detail = response
|
|
|
|
raise HTTPException(status_code=r.status if r else 500, detail=error_detail)
|
|
finally:
|
|
if not streaming and session:
|
|
if r:
|
|
r.close()
|
|
await session.close()
|
|
|
|
|
|
@app.api_route("/{path:path}", methods=["GET", "POST", "PUT", "DELETE"])
|
|
async def proxy(path: str, request: Request, user=Depends(get_verified_user)):
|
|
idx = 0
|
|
|
|
body = await request.body()
|
|
|
|
url = app.state.config.OPENAI_API_BASE_URLS[idx]
|
|
key = app.state.config.OPENAI_API_KEYS[idx]
|
|
|
|
target_url = f"{url}/{path}"
|
|
|
|
headers = {}
|
|
headers["Authorization"] = f"Bearer {key}"
|
|
headers["Content-Type"] = "application/json"
|
|
if ENABLE_FORWARD_USER_INFO_HEADERS:
|
|
headers["X-OpenWebUI-User-Name"] = user.name
|
|
headers["X-OpenWebUI-User-Id"] = user.id
|
|
headers["X-OpenWebUI-User-Email"] = user.email
|
|
headers["X-OpenWebUI-User-Role"] = user.role
|
|
|
|
r = None
|
|
session = None
|
|
streaming = False
|
|
|
|
try:
|
|
session = aiohttp.ClientSession(trust_env=True)
|
|
r = await session.request(
|
|
method=request.method,
|
|
url=target_url,
|
|
data=body,
|
|
headers=headers,
|
|
)
|
|
|
|
r.raise_for_status()
|
|
|
|
# Check if response is SSE
|
|
if "text/event-stream" in r.headers.get("Content-Type", ""):
|
|
streaming = True
|
|
return StreamingResponse(
|
|
r.content,
|
|
status_code=r.status,
|
|
headers=dict(r.headers),
|
|
background=BackgroundTask(
|
|
cleanup_response, response=r, session=session
|
|
),
|
|
)
|
|
else:
|
|
response_data = await r.json()
|
|
return response_data
|
|
except Exception as e:
|
|
log.exception(e)
|
|
error_detail = "Open WebUI: Server Connection Error"
|
|
if r is not None:
|
|
try:
|
|
res = await r.json()
|
|
print(res)
|
|
if "error" in res:
|
|
error_detail = f"External: {res['error']['message'] if 'message' in res['error'] else res['error']}"
|
|
except Exception:
|
|
error_detail = f"External: {e}"
|
|
raise HTTPException(status_code=r.status if r else 500, detail=error_detail)
|
|
finally:
|
|
if not streaming and session:
|
|
if r:
|
|
r.close()
|
|
await session.close()
|