71 lines
2.4 KiB
Python
71 lines
2.4 KiB
Python
from urllib.parse import quote, urljoin
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import httpx
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from fastapi import APIRouter, Depends, HTTPException, Query
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from fastapi.responses import Response
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.db.session import get_db
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from app.services.tv_streams import get_public_tv_payload, is_allowed_tv_proxy_url
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router = APIRouter()
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@router.get("/streams")
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async def list_public_tv_streams(
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db: AsyncSession = Depends(get_db),
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):
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return await get_public_tv_payload(db)
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@router.get("/proxy")
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async def proxy_tv_stream(
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url: str = Query(..., description="Upstream TV stream or manifest URL"),
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db: AsyncSession = Depends(get_db),
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):
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payload = await get_public_tv_payload(db)
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if not is_allowed_tv_proxy_url(url, payload.get("sources", [])):
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raise HTTPException(status_code=403, detail="TV proxy target is not allowed")
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try:
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async with httpx.AsyncClient(follow_redirects=True, timeout=20.0) as client:
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upstream = await client.get(
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url,
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headers={
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"User-Agent": "Mozilla/5.0",
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"Referer": "https://tv.cctv.com/live/cctv4/",
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},
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)
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upstream.raise_for_status()
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except httpx.HTTPError as exc:
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raise HTTPException(status_code=502, detail=f"Failed to fetch TV stream: {exc}") from exc
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content_type = upstream.headers.get("content-type", "application/octet-stream")
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raw_content = upstream.content
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response_url = str(upstream.url)
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is_manifest = (
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response_url.endswith(".m3u8")
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or "mpegurl" in content_type.lower()
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or raw_content.lstrip().startswith(b"#EXTM3U")
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)
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headers = {"Cache-Control": "no-store"}
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if is_manifest:
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manifest_text = upstream.text
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rewritten_lines: list[str] = []
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for line in manifest_text.splitlines():
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stripped = line.strip()
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if not stripped or stripped.startswith("#"):
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rewritten_lines.append(line)
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continue
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absolute_url = urljoin(response_url, stripped)
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rewritten_lines.append(f"/api/v1/tv/proxy?url={quote(absolute_url, safe='')}")
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return Response(
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content="\n".join(rewritten_lines),
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media_type="application/vnd.apple.mpegurl",
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headers=headers,
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)
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return Response(content=raw_content, media_type=content_type, headers=headers)
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