92 lines
2 KiB
Python
92 lines
2 KiB
Python
"""
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Router "file" provides:
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- listing files
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- finding files by name prefix
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- getting files by name prefix
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"""
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import re
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from io import BytesIO
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from logging import getLogger
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from typing import Iterator
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from fastapi import APIRouter, Depends
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from fastapi.responses import StreamingResponse
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from magic import Magic
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from ...dav_common import webdav_ensure_files, webdav_ensure_path
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from ...dav_file import DavFile
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from ._common import FileNameLister, PrefixFinder, PrefixUnique
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_logger = getLogger(__name__)
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_magic = Magic(mime=True)
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router = APIRouter(prefix="/file", tags=["file"])
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file_lister = FileNameLister(
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path_name="file_dir",
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re=re.compile(
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r"[^/]$",
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flags=re.IGNORECASE,
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),
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)
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file_finder = PrefixFinder(file_lister)
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file_unique = PrefixUnique(file_finder)
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@router.on_event("startup")
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async def start_router() -> None:
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_logger.debug(f"{router.prefix} router starting.")
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if not webdav_ensure_path(await file_lister.remote_path):
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webdav_ensure_files(
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await file_lister.remote_path,
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"logo.svg",
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"thw.svg",
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)
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@router.get(
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"/list",
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response_model=list[str],
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responses=file_lister.responses,
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)
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async def list_files(
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names: Iterator[str] = Depends(file_lister),
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) -> list[str]:
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return list(names)
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@router.get(
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"/find/{prefix}",
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response_model=list[str],
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responses=file_finder.responses,
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)
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async def find_files(
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names: Iterator[str] = Depends(file_finder),
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) -> list[str]:
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return list(names)
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@router.get(
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"/get/{prefix}",
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response_class=StreamingResponse,
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responses=file_unique.responses,
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)
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async def get_file(
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prefix: str,
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name: str = Depends(file_unique),
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) -> StreamingResponse:
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dav_file = DavFile(f"{await file_lister.remote_path}/{name}")
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buffer = BytesIO(await dav_file.as_bytes)
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mime = _magic.from_buffer(buffer.read(2048))
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buffer.seek(0)
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return StreamingResponse(
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content=buffer,
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media_type=mime,
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headers={"Content-Disposition": f"filename={prefix}"},
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)
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