forked from open-webui/open-webui
152 lines
4.6 KiB
Python
152 lines
4.6 KiB
Python
from fastapi import APIRouter, UploadFile, File, BackgroundTasks
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from fastapi import Depends, HTTPException, status
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from starlette.responses import StreamingResponse
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from pydantic import BaseModel
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import requests
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import os
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import aiohttp
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import json
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from utils.misc import calculate_sha256
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from config import OLLAMA_API_BASE_URL
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router = APIRouter()
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class UploadBlobForm(BaseModel):
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filename: str
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from urllib.parse import urlparse
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def parse_huggingface_url(hf_url):
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# Parse the URL
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parsed_url = urlparse(hf_url)
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# Get the path and split it into components
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path_components = parsed_url.path.split("/")
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# Extract the desired output
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user_repo = "/".join(path_components[1:3])
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model_file = path_components[-1]
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return [user_repo, model_file]
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async def download_file_stream(url, file_path, chunk_size=1024 * 1024):
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done = False
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if os.path.exists(file_path):
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current_size = os.path.getsize(file_path)
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else:
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current_size = 0
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headers = {"Range": f"bytes={current_size}-"} if current_size > 0 else {}
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timeout = aiohttp.ClientTimeout(total=60) # Set the timeout
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async with aiohttp.ClientSession(timeout=timeout) as session:
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async with session.get(url, headers=headers) as response:
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total_size = int(response.headers.get("content-length", 0)) + current_size
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with open(file_path, "ab+") as file:
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async for data in response.content.iter_chunked(chunk_size):
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current_size += len(data)
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file.write(data)
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done = current_size == total_size
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progress = round((current_size / total_size) * 100, 2)
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yield f'data: {{"progress": {progress}, "current": {current_size}, "total": {total_size}}}\n\n'
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if done:
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file.seek(0)
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hashed = calculate_sha256(file)
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file.seek(0)
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url = f"{OLLAMA_API_BASE_URL}/blobs/sha256:{hashed}"
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response = requests.post(url, data=file)
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if response.ok:
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res = {
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"done": done,
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"blob": f"sha256:{hashed}",
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}
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os.remove(file_path)
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yield f"data: {json.dumps(res)}\n\n"
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else:
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raise "Ollama: Could not create blob, Please try again."
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@router.get("/download")
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async def download(
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url: str = "https://huggingface.co/TheBloke/stablelm-zephyr-3b-GGUF/resolve/main/stablelm-zephyr-3b.Q2_K.gguf",
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):
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user_repo, model_file = parse_huggingface_url(url)
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os.makedirs("./uploads", exist_ok=True)
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file_path = os.path.join("./uploads", f"{model_file}")
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return StreamingResponse(
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download_file_stream(url, file_path), media_type="text/event-stream"
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)
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@router.post("/upload")
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async def upload(file: UploadFile = File(...)):
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os.makedirs("./uploads", exist_ok=True)
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file_path = os.path.join("./uploads", file.filename)
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async def file_write_stream():
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total = 0
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total_size = file.size
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chunk_size = 1024 * 1024
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done = False
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try:
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with open(file_path, "wb+") as f:
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while True:
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chunk = file.file.read(chunk_size)
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if not chunk:
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break
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f.write(chunk)
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total += len(chunk)
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done = total_size == total
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res = {
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"total": total_size,
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"uploaded": total,
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}
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yield f"data: {json.dumps(res)}\n\n"
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if done:
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f.seek(0)
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hashed = calculate_sha256(f)
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f.seek(0)
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url = f"{OLLAMA_API_BASE_URL}/blobs/sha256:{hashed}"
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response = requests.post(url, data=f)
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if response.ok:
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res = {
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"done": done,
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"blob": f"sha256:{hashed}",
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}
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os.remove(file_path)
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yield f"data: {json.dumps(res)}\n\n"
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else:
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raise "Ollama: Could not create blob, Please try again."
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except Exception as e:
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res = {"error": str(e)}
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yield f"data: {json.dumps(res)}\n\n"
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return StreamingResponse(file_write_stream(), media_type="text/event-stream")
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