INNER CODE UNIT · Python

proxy_thumbnail

liyupi/free-video-downloader · backend/main.py:130

async def proxy_thumbnail(url: str = Query(..., description="缩略图URL")):
    """代理获取视频缩略图，绕过防盗链"""
    try:
        async with httpx.AsyncClient(timeout=15, follow_redirects=True) as client:
            resp = await client.get(url, headers={
                "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36",
                "Referer": url,
            })
            resp.raise_for_status()
            content_type = resp.headers.get("content-type", "image/jpeg")
            return StreamingResponse(
                iter([resp.content]),
                media_type=content_type,
                headers={"Cache-Control": "public, max-age=86400"},
            )
    except Exception:
        raise HTTPException(status_code=502, detail="缩略图加载失败")

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