ZHIWEI666 commited on
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1 Parent(s): 94c35d7

Upload app.py

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Files changed (1) hide show
  1. app.py +30 -15
app.py CHANGED
@@ -54,8 +54,10 @@ async def upload_file(file: UploadFile = File(...), file_type: str = Form(...)):
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  # =========================================================
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- # 【核心修复】:使用 Pydantic义请求体结构,避免 FastAPI 启动崩溃
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  # =========================================================
 
 
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  class ProxyDownloadRequest(BaseModel):
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  url: str
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@@ -63,22 +65,35 @@ class ProxyDownloadRequest(BaseModel):
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  async def proxy_download(req_data: ProxyDownloadRequest):
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  target_url = req_data.url
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- # 安全校验:只允许代理下载 huggingface.co 域名的文件
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- if not target_url or "huggingface.co" not in target_url:
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- return JSONResponse(content={"error": "无效的下载链接或拒绝访问非 HF 域名"}, status_code=400)
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  hf_token = os.environ.get("HF_TOKEN")
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-
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- # 构造请求去私有库取文件
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- req = urllib.request.Request(target_url, headers={'User-Agent': 'Mozilla/5.0'})
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-
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- # 如果环境配置了 Token,则将其塞入请求头中用于突破私有权限
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- if hf_token:
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- req.add_header("Authorization", f"Bearer {hf_token}")
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  try:
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- with urllib.request.urlopen(req) as response:
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- content = response.read()
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- return Response(content=content, media_type="application/json")
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  except Exception as e:
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- return JSONResponse(content={"error": f"云端代理下载失败: {str(e)}"}, status_code=500)
 
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  # =========================================================
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+ # 【核心修复】:使用 huggingface_hub 官方库替代 urllib 解决重 401 问题
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  # =========================================================
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+ from huggingface_hub import hf_hub_download
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+
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  class ProxyDownloadRequest(BaseModel):
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  url: str
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  async def proxy_download(req_data: ProxyDownloadRequest):
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  target_url = req_data.url
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+ # 校验 URL 格式
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+ if not target_url or "resolve/main/" not in target_url:
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+ return JSONResponse(content={"error": "无效的 Hugging Face 下载链接"}, status_code=400)
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  hf_token = os.environ.get("HF_TOKEN")
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+ if not hf_token:
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+ return JSONResponse(content={"error": "云端环境变量未配置 HF_TOKEN,无法读取私有库"}, status_code=401)
 
 
 
 
 
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  try:
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+ # 1. 从前端传来的 URL 中切割出仓库内的真实相对路径
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+ # 例如从 https://.../resolve/main/apps/123_%E6%B5%8B.json 提取出 apps/123_%E6%B5%8B.json
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+ repo_path_encoded = target_url.split("resolve/main/")[-1]
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+
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+ # 2. 对可能存在的被编码的中文字符进行解码 (恢复为 apps/123_测.json)
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+ repo_path = urllib.parse.unquote(repo_path_encoded)
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+
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+ # 3. 调用官方库直接从私有 Dataset 拉取文件(完美处理鉴权和重定向)
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+ cached_file_path = hf_hub_download(
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+ repo_id=db.DATASET_REPO_ID,
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+ repo_type="dataset",
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+ filename=repo_path,
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+ token=hf_token
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+ )
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+
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+ # 4. 读取缓存在云端的本地文件流并返回给前端
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+ with open(cached_file_path, "rb") as f:
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+ content = f.read()
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+
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+ return Response(content=content, media_type="application/json")
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+
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  except Exception as e:
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+ return JSONResponse(content={"error": f"云端官方库读取失败: {str(e)}"}, status_code=500)