forked from open-webui/open-webui
127 lines
3.8 KiB
Python
127 lines
3.8 KiB
Python
from fastapi import FastAPI, Request, Response, HTTPException, Depends
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.responses import StreamingResponse
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import requests
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import json
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from pydantic import BaseModel
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from apps.web.models.users import Users
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from constants import ERROR_MESSAGES
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from utils.utils import decode_token, get_current_user
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from config import OLLAMA_API_BASE_URL, WEBUI_AUTH
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import aiohttp
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app = FastAPI()
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app.add_middleware(
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CORSMiddleware,
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allow_origins=["*"],
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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.OLLAMA_API_BASE_URL = OLLAMA_API_BASE_URL
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# TARGET_SERVER_URL = OLLAMA_API_BASE_URL
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@app.get("/url")
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async def get_ollama_api_url(user=Depends(get_current_user)):
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if user and user.role == "admin":
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return {"OLLAMA_API_BASE_URL": app.state.OLLAMA_API_BASE_URL}
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else:
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raise HTTPException(status_code=401, detail=ERROR_MESSAGES.ACCESS_PROHIBITED)
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class UrlUpdateForm(BaseModel):
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url: str
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@app.post("/url/update")
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async def update_ollama_api_url(
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form_data: UrlUpdateForm, user=Depends(get_current_user)
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):
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if user and user.role == "admin":
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app.state.OLLAMA_API_BASE_URL = form_data.url
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return {"OLLAMA_API_BASE_URL": app.state.OLLAMA_API_BASE_URL}
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else:
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raise HTTPException(status_code=401, detail=ERROR_MESSAGES.ACCESS_PROHIBITED)
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# async def fetch_sse(method, target_url, body, headers):
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# async with aiohttp.ClientSession() as session:
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# try:
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# async with session.request(
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# method, target_url, data=body, headers=headers
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# ) as response:
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# print(response.status)
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# async for line in response.content:
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# yield line
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# except Exception as e:
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# print(e)
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# error_detail = "Open WebUI: Server Connection Error"
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# yield json.dumps({"error": error_detail, "message": str(e)}).encode()
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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_current_user)):
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target_url = f"{app.state.OLLAMA_API_BASE_URL}/{path}"
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print(target_url)
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body = await request.body()
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headers = dict(request.headers)
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if user.role in ["user", "admin"]:
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if path in ["pull", "delete", "push", "copy", "create"]:
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if user.role != "admin":
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raise HTTPException(
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status_code=401, detail=ERROR_MESSAGES.ACCESS_PROHIBITED
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)
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else:
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raise HTTPException(status_code=401, detail=ERROR_MESSAGES.ACCESS_PROHIBITED)
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headers.pop("Host", None)
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headers.pop("Authorization", None)
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headers.pop("Origin", None)
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headers.pop("Referer", None)
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session = aiohttp.ClientSession()
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response = None
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try:
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response = await session.request(
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request.method, target_url, data=body, headers=headers
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)
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print(response)
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if not response.ok:
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data = await response.json()
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print(data)
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response.raise_for_status()
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async def generate():
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async for line in response.content:
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print(line)
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yield line
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await session.close()
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return StreamingResponse(generate(), response.status)
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except Exception as e:
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print(e)
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error_detail = "Open WebUI: Server Connection Error"
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if response is not None:
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try:
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res = await response.json()
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if "error" in res:
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error_detail = f"Ollama: {res['error']}"
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except:
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error_detail = f"Ollama: {e}"
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await session.close()
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raise HTTPException(
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status_code=response.status if response else 500,
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detail=error_detail,
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)
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