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