mirror of
https://github.com/Andre-Bzk/Rezept0r.git
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Andre
c7582dafbb
- Bilder beim Extrahieren lokal cachen (data/images/{id}.ext) und über GET /api/history/{id}/image ausliefern; Löschen bei Verlaufseintrag-Entfernung
- history.db in ./data/ Volume verschoben, damit sie Container-Rebuilds überlebt
- yt-dlp Subprocess-Aufrufe auf Windows gefixt: run_in_executor statt asyncio.create_subprocess_exec (SelectorEventLoop-Kompatibilität)
- ./data:/app/data Docker-Volume für persistente Datenhaltung hinzugefügt
51 lines
1.6 KiB
Python
51 lines
1.6 KiB
Python
"""Local image caching for recipe history."""
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from __future__ import annotations
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import logging
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from pathlib import Path
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from typing import Optional
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import httpx
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from app.config import get_settings
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log = logging.getLogger(__name__)
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MIME_TO_EXT = {
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"image/jpeg": "jpg",
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"image/png": "png",
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"image/webp": "webp",
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"image/gif": "gif",
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}
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def images_dir() -> Path:
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p = Path(get_settings().images_dir)
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p.mkdir(parents=True, exist_ok=True)
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return p
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def find_cached_image(history_id: int) -> Optional[Path]:
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"""Return the cached image Path for a history entry, or None."""
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for ext in MIME_TO_EXT.values():
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p = images_dir() / f"{history_id}.{ext}"
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if p.exists():
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return p
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return None
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async def download_and_cache(history_id: int, remote_url: str) -> Optional[str]:
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"""Download image from remote_url, save locally, return local API path or None on failure."""
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try:
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async with httpx.AsyncClient(timeout=15) as client:
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resp = await client.get(remote_url, follow_redirects=True)
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resp.raise_for_status()
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ct = resp.headers.get("content-type", "image/jpeg").split(";")[0].strip()
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ext = MIME_TO_EXT.get(ct, "jpg")
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dest = images_dir() / f"{history_id}.{ext}"
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dest.write_bytes(resp.content)
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log.info("Cached image for history %d → %s", history_id, dest)
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return f"/api/history/{history_id}/image"
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except Exception as exc:
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log.warning("Image cache failed for history %d: %s", history_id, exc)
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return None
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