Mawoka
39 lines
1.2 KiB
Python
39 lines
1.2 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at https://mozilla.org/MPL/2.0/.
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import re
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from fastapi import APIRouter, HTTPException
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from fastapi.responses import StreamingResponse
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from classquiz.config import settings, storage
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from classquiz.storage.errors import DownloadingFailedError
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settings = settings()
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router = APIRouter()
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file_regex = r"^[a-z0-9]{8}-[a-z0-9-]{27}--[a-z0-9-]{36}$"
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@router.get("/download/{file_name}")
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async def download_file(file_name: str):
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if not re.match(file_regex, file_name):
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raise HTTPException(status_code=400, detail="Invalid file name")
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try:
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download = await storage.download(file_name)
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except DownloadingFailedError:
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raise HTTPException(status_code=404, detail="File not found")
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if download is None:
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raise HTTPException(status_code=404, detail="File not found")
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def iter_file():
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yield from download
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return StreamingResponse(
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iter_file(),
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media_type="image/*",
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headers={"Cache-Control": "public, immutable, max-age=31536000"},
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)
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