forked from open-webui/open-webui
DO NOT TRACK ME >:(
This commit is contained in:
Timothy J. Baek
parent
5e458d490a
commit
a41b195f46
1 changed files with 119 additions and 66 deletions
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@ -1,4 +1,4 @@
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from fastapi import FastAPI, Depends
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from fastapi import FastAPI, Depends, HTTPException
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from fastapi.routing import APIRoute
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from fastapi.middleware.cors import CORSMiddleware
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@ -9,9 +9,11 @@ from fastapi.responses import JSONResponse
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from starlette.middleware.base import BaseHTTPMiddleware, RequestResponseEndpoint
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from starlette.responses import StreamingResponse
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import json
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import requests
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from utils.utils import get_http_authorization_cred, get_current_user
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from utils.utils import get_verified_user, get_current_user
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from config import SRC_LOG_LEVELS, ENV
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from constants import ERROR_MESSAGES
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log = logging.getLogger(__name__)
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log.setLevel(SRC_LOG_LEVELS["LITELLM"])
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@ -49,12 +51,13 @@ async def run_background_process(command):
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async def start_litellm_background():
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# Command to run in the background
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command = "litellm --config ./data/litellm/config.yaml"
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command = "litellm --telemetry False --config ./data/litellm/config.yaml"
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await run_background_process(command)
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@app.on_event("startup")
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async def startup_event():
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# TODO: Check config.yaml file and create one
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asyncio.create_task(start_litellm_background())
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@ -62,82 +65,132 @@ app.state.MODEL_FILTER_ENABLED = MODEL_FILTER_ENABLED
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app.state.MODEL_FILTER_LIST = MODEL_FILTER_LIST
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@app.middleware("http")
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async def auth_middleware(request: Request, call_next):
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auth_header = request.headers.get("Authorization", "")
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request.state.user = None
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try:
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user = get_current_user(get_http_authorization_cred(auth_header))
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log.debug(f"user: {user}")
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request.state.user = user
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except Exception as e:
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return JSONResponse(status_code=400, content={"detail": str(e)})
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response = await call_next(request)
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return response
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@app.get("/")
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async def get_status():
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return {"status": True}
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class ModifyModelsResponseMiddleware(BaseHTTPMiddleware):
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async def dispatch(
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self, request: Request, call_next: RequestResponseEndpoint
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) -> Response:
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@app.get("/models")
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@app.get("/v1/models")
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async def get_models(user=Depends(get_current_user)):
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url = "http://localhost:4000/v1"
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r = None
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try:
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r = requests.request(method="GET", url=f"{url}/models")
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r.raise_for_status()
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response = await call_next(request)
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user = request.state.user
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if "/models" in request.url.path:
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if isinstance(response, StreamingResponse):
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# Read the content of the streaming response
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body = b""
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async for chunk in response.body_iterator:
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body += chunk
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data = json.loads(body.decode("utf-8"))
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data = r.json()
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if app.state.MODEL_FILTER_ENABLED:
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if user and user.role == "user":
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data["data"] = list(
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filter(
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lambda model: model["id"]
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in app.state.MODEL_FILTER_LIST,
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lambda model: model["id"] in app.state.MODEL_FILTER_LIST,
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data["data"],
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)
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)
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# Modified Flag
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data["modified"] = True
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return JSONResponse(content=data)
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return data
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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:
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error_detail = f"External: {e}"
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return response
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raise HTTPException(
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status_code=r.status_code if r else 500,
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detail=error_detail,
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)
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app.add_middleware(ModifyModelsResponseMiddleware)
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@app.api_route("/{path:path}", methods=["GET", "POST", "PUT", "DELETE"])
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async def proxy(path: str, request: Request, user=Depends(get_verified_user)):
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body = await request.body()
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url = "http://localhost:4000/v1"
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target_url = f"{url}/{path}"
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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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r = None
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try:
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r = requests.request(
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method=request.method,
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url=target_url,
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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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# Check if response is SSE
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if "text/event-stream" in r.headers.get("Content-Type", ""):
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return StreamingResponse(
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r.iter_content(chunk_size=8192),
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status_code=r.status_code,
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headers=dict(r.headers),
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)
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else:
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response_data = r.json()
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return response_data
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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']['message'] if 'message' in res['error'] else res['error']}"
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except:
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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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# from litellm.proxy.proxy_server import ProxyConfig, initialize
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# from litellm.proxy.proxy_server import app
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# class ModifyModelsResponseMiddleware(BaseHTTPMiddleware):
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# async def dispatch(
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# self, request: Request, call_next: RequestResponseEndpoint
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# ) -> Response:
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# proxy_config = ProxyConfig()
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# response = await call_next(request)
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# user = request.state.user
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# if "/models" in request.url.path:
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# if isinstance(response, StreamingResponse):
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# # Read the content of the streaming response
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# body = b""
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# async for chunk in response.body_iterator:
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# body += chunk
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# async def config():
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# router, model_list, general_settings = await proxy_config.load_config(
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# router=None, config_file_path="./data/litellm/config.yaml"
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# data = json.loads(body.decode("utf-8"))
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# if app.state.MODEL_FILTER_ENABLED:
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# if user and user.role == "user":
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# data["data"] = list(
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# filter(
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# lambda model: model["id"]
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# in app.state.MODEL_FILTER_LIST,
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# data["data"],
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# )
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# )
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# await initialize(config="./data/litellm/config.yaml", telemetry=False)
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# # Modified Flag
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# data["modified"] = True
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# return JSONResponse(content=data)
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# return response
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# async def startup():
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# await config()
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# @app.on_event("startup")
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# async def on_startup():
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# await startup()
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# app.add_middleware(ModifyModelsResponseMiddleware)
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