Cheng Zhou
114 lines
3.7 KiB
Python
114 lines
3.7 KiB
Python
import os
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import uuid
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from pathlib import Path
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import aiofiles
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from fastapi import APIRouter, Depends, File, HTTPException, UploadFile, status
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from fastapi.responses import FileResponse
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.core.deps import get_current_user, get_db_session, require_study_member
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from app.crud import attachment as attachment_crud
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from app.crud import audit as audit_crud
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from app.crud import study as study_crud
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from app.schemas.attachment import AttachmentRead
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router = APIRouter()
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UPLOAD_ROOT = Path(__file__).resolve().parent.parent.parent / "uploads"
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async def _ensure_study_exists(db: AsyncSession, study_id: uuid.UUID):
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study = await study_crud.get(db, study_id)
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if not study:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Study not found")
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return study
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@router.post(
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"/",
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response_model=AttachmentRead,
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status_code=status.HTTP_201_CREATED,
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dependencies=[Depends(require_study_member())],
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)
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async def upload_attachment(
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study_id: uuid.UUID,
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entity_type: str,
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entity_id: uuid.UUID,
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file: UploadFile = File(...),
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db: AsyncSession = Depends(get_db_session),
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current_user=Depends(get_current_user),
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) -> AttachmentRead:
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await _ensure_study_exists(db, study_id)
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dest_dir = UPLOAD_ROOT / f"study_{study_id}" / f"{entity_type}_{entity_id}"
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dest_dir.mkdir(parents=True, exist_ok=True)
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unique_name = f"{uuid.uuid4()}{Path(file.filename).suffix}"
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dest_path = dest_dir / unique_name
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content = await file.read()
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async with aiofiles.open(dest_path, "wb") as out_file:
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await out_file.write(content)
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attachment = await attachment_crud.create_attachment(
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db,
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study_id=study_id,
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entity_type=entity_type,
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entity_id=entity_id,
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filename=file.filename,
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file_path=str(dest_path),
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file_size=len(content),
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content_type=file.content_type,
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uploaded_by=current_user.id,
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)
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await audit_crud.log_action(
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db,
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study_id=study_id,
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entity_type=entity_type,
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entity_id=entity_id,
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action="UPLOAD_FILE",
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detail=f"File uploaded: {file.filename}",
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operator_id=current_user.id,
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operator_role=current_user.role,
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)
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return attachment
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@router.get(
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"/",
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response_model=list[AttachmentRead],
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dependencies=[Depends(require_study_member())],
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)
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async def list_attachments(
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study_id: uuid.UUID,
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entity_type: str,
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entity_id: uuid.UUID,
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db: AsyncSession = Depends(get_db_session),
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) -> list[AttachmentRead]:
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await _ensure_study_exists(db, study_id)
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attachments = await attachment_crud.list_attachments(db, study_id, entity_type, entity_id)
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return list(attachments)
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@router.get(
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"/{attachment_id}/download",
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dependencies=[Depends(require_study_member())],
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)
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async def download_attachment(
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study_id: uuid.UUID,
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entity_type: str,
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entity_id: uuid.UUID,
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attachment_id: uuid.UUID,
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db: AsyncSession = Depends(get_db_session),
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) -> FileResponse:
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await _ensure_study_exists(db, study_id)
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attachment = await attachment_crud.get_attachment(db, attachment_id)
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if not attachment or attachment.study_id != study_id or attachment.entity_id != entity_id or attachment.entity_type != entity_type:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Attachment not found")
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if not os.path.exists(attachment.file_path):
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="File missing on server")
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return FileResponse(
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path=attachment.file_path,
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filename=attachment.filename,
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media_type=attachment.content_type or "application/octet-stream",
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)
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