forked from open-webui/open-webui
feat: multiple ollama support
This commit is contained in:
Timothy J. Baek
parent
475105473c
commit
f04d60b6d9
4 changed files with 831 additions and 62 deletions
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@ -3,16 +3,23 @@ from fastapi.middleware.cors import CORSMiddleware
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from fastapi.responses import StreamingResponse
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from fastapi.concurrency import run_in_threadpool
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from pydantic import BaseModel
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import random
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import requests
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import json
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import uuid
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from pydantic import BaseModel
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import aiohttp
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import asyncio
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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, get_admin_user
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from config import OLLAMA_BASE_URL, WEBUI_AUTH
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from typing import Optional, List, Union
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app = FastAPI()
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app.add_middleware(
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CORSMiddleware,
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@ -23,26 +30,39 @@ app.add_middleware(
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)
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app.state.OLLAMA_BASE_URL = OLLAMA_BASE_URL
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# TARGET_SERVER_URL = OLLAMA_API_BASE_URL
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app.state.OLLAMA_BASE_URLS = [OLLAMA_BASE_URL]
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app.state.MODELS = {}
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REQUEST_POOL = []
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@app.get("/url")
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async def get_ollama_api_url(user=Depends(get_admin_user)):
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return {"OLLAMA_BASE_URL": app.state.OLLAMA_BASE_URL}
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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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else:
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pass
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response = await call_next(request)
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return response
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@app.get("/urls")
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async def get_ollama_api_urls(user=Depends(get_admin_user)):
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return {"OLLAMA_BASE_URLS": app.state.OLLAMA_BASE_URLS}
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class UrlUpdateForm(BaseModel):
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url: str
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urls: List[str]
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@app.post("/url/update")
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@app.post("/urls/update")
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async def update_ollama_api_url(form_data: UrlUpdateForm, user=Depends(get_admin_user)):
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app.state.OLLAMA_BASE_URL = form_data.url
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return {"OLLAMA_BASE_URL": app.state.OLLAMA_BASE_URL}
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app.state.OLLAMA_BASE_URLS = form_data.urls
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print(app.state.OLLAMA_BASE_URLS)
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return {"OLLAMA_BASE_URLS": app.state.OLLAMA_BASE_URLS}
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@app.get("/cancel/{request_id}")
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@ -55,9 +75,695 @@ async def cancel_ollama_request(request_id: str, user=Depends(get_current_user))
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raise HTTPException(status_code=401, detail=ERROR_MESSAGES.ACCESS_PROHIBITED)
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async def fetch_url(url):
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try:
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async with aiohttp.ClientSession() as session:
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async with session.get(url) 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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print(f"Connection error: {e}")
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return None
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def merge_models_lists(model_lists):
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merged_models = {}
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for idx, model_list in enumerate(model_lists):
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for model in model_list:
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digest = model["digest"]
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if digest not in merged_models:
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model["urls"] = [idx]
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merged_models[digest] = model
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else:
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merged_models[digest]["urls"].append(idx)
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return list(merged_models.values())
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# user=Depends(get_current_user)
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async def get_all_models():
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print("get_all_models")
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tasks = [fetch_url(f"{url}/api/tags") for url in app.state.OLLAMA_BASE_URLS]
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responses = await asyncio.gather(*tasks)
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responses = list(filter(lambda x: x is not None, responses))
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models = {
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"models": merge_models_lists(
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map(lambda response: response["models"], responses)
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)
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}
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app.state.MODELS = {model["model"]: model for model in models["models"]}
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return models
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@app.get("/api/tags")
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@app.get("/api/tags/{url_idx}")
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async def get_ollama_tags(
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url_idx: Optional[int] = None, user=Depends(get_current_user)
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):
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if url_idx == None:
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return await get_all_models()
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else:
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url = app.state.OLLAMA_BASE_URLS[url_idx]
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try:
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r = requests.request(method="GET", url=f"{url}/api/tags")
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r.raise_for_status()
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return r.json()
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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 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"Ollama: {res['error']}"
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except:
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error_detail = f"Ollama: {e}"
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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.get("/api/version")
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@app.get("/api/version/{url_idx}")
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async def get_ollama_versions(url_idx: Optional[int] = None):
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if url_idx == None:
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# returns lowest version
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tasks = [fetch_url(f"{url}/api/version") for url in app.state.OLLAMA_BASE_URLS]
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responses = await asyncio.gather(*tasks)
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responses = list(filter(lambda x: x is not None, responses))
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lowest_version = min(
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responses, key=lambda x: tuple(map(int, x["version"].split(".")))
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)
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return {"version": lowest_version["version"]}
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else:
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url = app.state.OLLAMA_BASE_URLS[url_idx]
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try:
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r = requests.request(method="GET", url=f"{url}/api/version")
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r.raise_for_status()
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return r.json()
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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 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"Ollama: {res['error']}"
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except:
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error_detail = f"Ollama: {e}"
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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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class ModelNameForm(BaseModel):
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name: str
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@app.post("/api/pull")
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@app.post("/api/pull/{url_idx}")
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async def pull_model(
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form_data: ModelNameForm, url_idx: int = 0, user=Depends(get_admin_user)
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):
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url = app.state.OLLAMA_BASE_URLS[url_idx]
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r = None
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def get_request(url):
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nonlocal r
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try:
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def stream_content():
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for chunk in r.iter_content(chunk_size=8192):
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yield chunk
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r = requests.request(
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method="POST",
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url=f"{url}/api/pull",
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data=form_data.model_dump_json(exclude_none=True),
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stream=True,
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)
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r.raise_for_status()
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return StreamingResponse(
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stream_content(),
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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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except Exception as e:
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raise e
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try:
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return await run_in_threadpool(get_request(url))
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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 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"Ollama: {res['error']}"
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except:
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error_detail = f"Ollama: {e}"
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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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class PushModelForm(BaseModel):
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name: str
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insecure: Optional[bool] = None
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stream: Optional[bool] = None
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@app.delete("/api/push")
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@app.delete("/api/push/{url_idx}")
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async def push_model(
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form_data: PushModelForm,
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url_idx: Optional[int] = None,
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user=Depends(get_admin_user),
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):
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if url_idx == None:
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if form_data.name in app.state.MODELS:
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url_idx = app.state.MODELS[form_data.name]["urls"][0]
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else:
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raise HTTPException(
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status_code=400,
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detail="error_detail",
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)
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url = app.state.OLLAMA_BASE_URLS[url_idx]
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r = None
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def get_request():
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nonlocal url
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nonlocal r
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try:
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def stream_content():
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for chunk in r.iter_content(chunk_size=8192):
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yield chunk
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r = requests.request(
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method="POST",
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url=f"{url}/api/push",
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data=form_data.model_dump_json(exclude_none=True),
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)
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r.raise_for_status()
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return StreamingResponse(
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stream_content(),
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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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except Exception as e:
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raise e
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try:
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return await run_in_threadpool(get_request)
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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 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"Ollama: {res['error']}"
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except:
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error_detail = f"Ollama: {e}"
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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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class CreateModelForm(BaseModel):
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name: str
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modelfile: Optional[str] = None
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stream: Optional[bool] = None
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path: Optional[str] = None
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@app.post("/api/create")
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@app.post("/api/create/{url_idx}")
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async def create_model(
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form_data: CreateModelForm, url_idx: int = 0, user=Depends(get_admin_user)
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):
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print(form_data)
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url = app.state.OLLAMA_BASE_URLS[url_idx]
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r = None
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def get_request():
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nonlocal url
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nonlocal r
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try:
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def stream_content():
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for chunk in r.iter_content(chunk_size=8192):
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yield chunk
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r = requests.request(
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method="POST",
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url=f"{url}/api/create",
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data=form_data.model_dump_json(exclude_none=True),
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stream=True,
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)
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r.raise_for_status()
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print(r)
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return StreamingResponse(
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stream_content(),
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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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except Exception as e:
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raise e
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try:
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return await run_in_threadpool(get_request)
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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 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"Ollama: {res['error']}"
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except:
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error_detail = f"Ollama: {e}"
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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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class CopyModelForm(BaseModel):
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source: str
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destination: str
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@app.post("/api/copy")
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@app.post("/api/copy/{url_idx}")
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async def copy_model(
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form_data: CopyModelForm,
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url_idx: Optional[int] = None,
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user=Depends(get_admin_user),
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):
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if url_idx == None:
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if form_data.source in app.state.MODELS:
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url_idx = app.state.MODELS[form_data.source]["urls"][0]
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else:
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raise HTTPException(
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status_code=400,
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detail="error_detail",
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)
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url = app.state.OLLAMA_BASE_URLS[url_idx]
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try:
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r = requests.request(
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method="POST",
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url=f"{url}/api/copy",
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data=form_data.model_dump_json(exclude_none=True),
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)
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r.raise_for_status()
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print(r.text)
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return True
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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 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"Ollama: {res['error']}"
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except:
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error_detail = f"Ollama: {e}"
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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.delete("/api/delete")
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@app.delete("/api/delete/{url_idx}")
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async def delete_model(
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form_data: ModelNameForm,
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url_idx: Optional[int] = None,
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user=Depends(get_admin_user),
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):
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if url_idx == None:
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if form_data.name in app.state.MODELS:
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url_idx = app.state.MODELS[form_data.name]["urls"][0]
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else:
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raise HTTPException(
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status_code=400,
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detail="error_detail",
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)
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url = app.state.OLLAMA_BASE_URLS[url_idx]
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try:
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r = requests.request(
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method="DELETE",
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url=f"{url}/api/delete",
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data=form_data.model_dump_json(exclude_none=True),
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)
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r.raise_for_status()
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print(r.text)
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return True
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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 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"Ollama: {res['error']}"
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except:
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error_detail = f"Ollama: {e}"
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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.post("/api/show")
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async def show_model_info(form_data: ModelNameForm, user=Depends(get_current_user)):
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if form_data.name not in app.state.MODELS:
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raise HTTPException(
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status_code=400,
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detail="error_detail",
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)
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url_idx = random.choice(app.state.MODELS[form_data.name]["urls"])
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url = app.state.OLLAMA_BASE_URLS[url_idx]
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try:
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r = requests.request(
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method="POST",
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url=f"{url}/api/show",
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data=form_data.model_dump_json(exclude_none=True),
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)
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r.raise_for_status()
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return r.json()
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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 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"Ollama: {res['error']}"
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except:
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error_detail = f"Ollama: {e}"
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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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class GenerateEmbeddingsForm(BaseModel):
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model: str
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prompt: str
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options: Optional[dict] = None
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keep_alive: Optional[Union[int, str]] = None
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@app.post("/api/embeddings")
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@app.post("/api/embeddings/{url_idx}")
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async def generate_embeddings(
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form_data: GenerateEmbeddingsForm,
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url_idx: Optional[int] = None,
|
||||
user=Depends(get_current_user),
|
||||
):
|
||||
if url_idx == None:
|
||||
if form_data.model in app.state.MODELS:
|
||||
url_idx = random.choice(app.state.MODELS[form_data.model]["urls"])
|
||||
else:
|
||||
raise HTTPException(
|
||||
status_code=400,
|
||||
detail="error_detail",
|
||||
)
|
||||
|
||||
url = app.state.OLLAMA_BASE_URLS[url_idx]
|
||||
|
||||
try:
|
||||
r = requests.request(
|
||||
method="POST",
|
||||
url=f"{url}/api/embeddings",
|
||||
data=form_data.model_dump_json(exclude_none=True),
|
||||
)
|
||||
r.raise_for_status()
|
||||
|
||||
return r.json()
|
||||
except Exception as e:
|
||||
print(e)
|
||||
error_detail = "Open WebUI: Server Connection Error"
|
||||
if r is not None:
|
||||
try:
|
||||
res = r.json()
|
||||
if "error" in res:
|
||||
error_detail = f"Ollama: {res['error']}"
|
||||
except:
|
||||
error_detail = f"Ollama: {e}"
|
||||
|
||||
raise HTTPException(
|
||||
status_code=r.status_code if r else 500,
|
||||
detail=error_detail,
|
||||
)
|
||||
|
||||
|
||||
class GenerateCompletionForm(BaseModel):
|
||||
model: str
|
||||
prompt: str
|
||||
images: Optional[List[str]] = None
|
||||
format: Optional[str] = None
|
||||
options: Optional[dict] = None
|
||||
system: Optional[str] = None
|
||||
template: Optional[str] = None
|
||||
context: Optional[str] = None
|
||||
stream: Optional[bool] = True
|
||||
raw: Optional[bool] = None
|
||||
keep_alive: Optional[Union[int, str]] = None
|
||||
|
||||
|
||||
@app.post("/api/generate")
|
||||
@app.post("/api/generate/{url_idx}")
|
||||
async def generate_completion(
|
||||
form_data: GenerateCompletionForm,
|
||||
url_idx: Optional[int] = None,
|
||||
user=Depends(get_current_user),
|
||||
):
|
||||
|
||||
if url_idx == None:
|
||||
if form_data.model in app.state.MODELS:
|
||||
url_idx = random.choice(app.state.MODELS[form_data.model]["urls"])
|
||||
else:
|
||||
raise HTTPException(
|
||||
status_code=400,
|
||||
detail="error_detail",
|
||||
)
|
||||
|
||||
url = app.state.OLLAMA_BASE_URLS[url_idx]
|
||||
|
||||
r = None
|
||||
|
||||
def get_request():
|
||||
nonlocal form_data
|
||||
nonlocal r
|
||||
|
||||
request_id = str(uuid.uuid4())
|
||||
try:
|
||||
REQUEST_POOL.append(request_id)
|
||||
|
||||
def stream_content():
|
||||
try:
|
||||
if form_data.stream:
|
||||
yield json.dumps({"id": request_id, "done": False}) + "\n"
|
||||
|
||||
for chunk in r.iter_content(chunk_size=8192):
|
||||
if request_id in REQUEST_POOL:
|
||||
yield chunk
|
||||
else:
|
||||
print("User: canceled request")
|
||||
break
|
||||
finally:
|
||||
if hasattr(r, "close"):
|
||||
r.close()
|
||||
if request_id in REQUEST_POOL:
|
||||
REQUEST_POOL.remove(request_id)
|
||||
|
||||
r = requests.request(
|
||||
method="POST",
|
||||
url=f"{url}/api/generate",
|
||||
data=form_data.model_dump_json(exclude_none=True),
|
||||
stream=True,
|
||||
)
|
||||
|
||||
r.raise_for_status()
|
||||
|
||||
return StreamingResponse(
|
||||
stream_content(),
|
||||
status_code=r.status_code,
|
||||
headers=dict(r.headers),
|
||||
)
|
||||
except Exception as e:
|
||||
raise e
|
||||
|
||||
try:
|
||||
return await run_in_threadpool(get_request)
|
||||
except Exception as e:
|
||||
error_detail = "Open WebUI: Server Connection Error"
|
||||
if r is not None:
|
||||
try:
|
||||
res = r.json()
|
||||
if "error" in res:
|
||||
error_detail = f"Ollama: {res['error']}"
|
||||
except:
|
||||
error_detail = f"Ollama: {e}"
|
||||
|
||||
raise HTTPException(
|
||||
status_code=r.status_code if r else 500,
|
||||
detail=error_detail,
|
||||
)
|
||||
|
||||
|
||||
class ChatMessage(BaseModel):
|
||||
role: str
|
||||
content: str
|
||||
images: Optional[List[str]] = None
|
||||
|
||||
|
||||
class GenerateChatCompletionForm(BaseModel):
|
||||
model: str
|
||||
messages: List[ChatMessage]
|
||||
format: Optional[str] = None
|
||||
options: Optional[dict] = None
|
||||
template: Optional[str] = None
|
||||
stream: Optional[bool] = True
|
||||
keep_alive: Optional[Union[int, str]] = None
|
||||
|
||||
|
||||
@app.post("/api/chat")
|
||||
@app.post("/api/chat/{url_idx}")
|
||||
async def generate_completion(
|
||||
form_data: GenerateChatCompletionForm,
|
||||
url_idx: Optional[int] = None,
|
||||
user=Depends(get_current_user),
|
||||
):
|
||||
|
||||
if url_idx == None:
|
||||
if form_data.model in app.state.MODELS:
|
||||
url_idx = random.choice(app.state.MODELS[form_data.model]["urls"])
|
||||
else:
|
||||
raise HTTPException(
|
||||
status_code=400,
|
||||
detail="error_detail",
|
||||
)
|
||||
|
||||
url = app.state.OLLAMA_BASE_URLS[url_idx]
|
||||
|
||||
r = None
|
||||
|
||||
print(form_data.model_dump_json(exclude_none=True))
|
||||
|
||||
def get_request():
|
||||
nonlocal form_data
|
||||
nonlocal r
|
||||
|
||||
request_id = str(uuid.uuid4())
|
||||
try:
|
||||
REQUEST_POOL.append(request_id)
|
||||
|
||||
def stream_content():
|
||||
try:
|
||||
if form_data.stream:
|
||||
yield json.dumps({"id": request_id, "done": False}) + "\n"
|
||||
|
||||
for chunk in r.iter_content(chunk_size=8192):
|
||||
if request_id in REQUEST_POOL:
|
||||
yield chunk
|
||||
else:
|
||||
print("User: canceled request")
|
||||
break
|
||||
finally:
|
||||
if hasattr(r, "close"):
|
||||
r.close()
|
||||
if request_id in REQUEST_POOL:
|
||||
REQUEST_POOL.remove(request_id)
|
||||
|
||||
r = requests.request(
|
||||
method="POST",
|
||||
url=f"{url}/api/chat",
|
||||
data=form_data.model_dump_json(exclude_none=True),
|
||||
stream=True,
|
||||
)
|
||||
|
||||
r.raise_for_status()
|
||||
|
||||
return StreamingResponse(
|
||||
stream_content(),
|
||||
status_code=r.status_code,
|
||||
headers=dict(r.headers),
|
||||
)
|
||||
except Exception as e:
|
||||
raise e
|
||||
|
||||
try:
|
||||
return await run_in_threadpool(get_request)
|
||||
except Exception as e:
|
||||
error_detail = "Open WebUI: Server Connection Error"
|
||||
if r is not None:
|
||||
try:
|
||||
res = r.json()
|
||||
if "error" in res:
|
||||
error_detail = f"Ollama: {res['error']}"
|
||||
except:
|
||||
error_detail = f"Ollama: {e}"
|
||||
|
||||
raise HTTPException(
|
||||
status_code=r.status_code if r else 500,
|
||||
detail=error_detail,
|
||||
)
|
||||
|
||||
|
||||
@app.api_route("/{path:path}", methods=["GET", "POST", "PUT", "DELETE"])
|
||||
async def proxy(path: str, request: Request, user=Depends(get_current_user)):
|
||||
target_url = f"{app.state.OLLAMA_BASE_URL}/{path}"
|
||||
url = app.state.OLLAMA_BASE_URLS[0]
|
||||
target_url = f"{url}/{path}"
|
||||
|
||||
body = await request.body()
|
||||
headers = dict(request.headers)
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue