Cheng Zhou
249 lines
10 KiB
Python
249 lines
10 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, Request, Form
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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_not_locked
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from app.core.security import decode_token
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from app.crud import audit as audit_crud
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from app.crud import contract_fee as contract_fee_crud
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from app.crud import contract_fee_payment as payment_crud
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from app.crud import fee_attachment as fee_attachment_crud
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from app.crud import member as member_crud
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from app.crud import user as user_crud
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from app.schemas.fee_attachment import FeeAttachmentRead
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from app.schemas.fee_common import FeeApiResponse
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from app.schemas.user import UserDisplay
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router = APIRouter()
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UPLOAD_ROOT = Path(__file__).resolve().parent.parent.parent / "uploads" / "fees"
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ALLOWED_ENTITY_TYPES = {"contract_fee", "contract_payment"}
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ALLOWED_FILE_TYPES = {
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"contract_fee": {"contract", "voucher", "invoice"},
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"contract_payment": {"voucher", "invoice"},
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}
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async def _resolve_project_id(db: AsyncSession, entity_type: str, entity_id: uuid.UUID) -> uuid.UUID:
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if entity_type == "contract_fee":
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contract = await contract_fee_crud.get_contract_fee(db, entity_id)
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if not contract:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="合同费用不存在")
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return contract.project_id
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if entity_type == "contract_payment":
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payment = await payment_crud.get_payment(db, entity_id)
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if not payment:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="分期记录不存在")
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contract = await contract_fee_crud.get_contract_fee(db, payment.contract_fee_id)
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if not contract:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="合同费用不存在")
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return contract.project_id
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raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="不支持的附件类型")
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async def _ensure_project_access(db: AsyncSession, project_id: uuid.UUID, current_user, write: bool = False):
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role_value = current_user.role.value if hasattr(current_user.role, "value") else current_user.role
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if role_value == "ADMIN":
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return None
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membership = await member_crud.get_member(db, project_id, current_user.id)
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if not membership or not membership.is_active:
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raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="不是项目成员")
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if write and membership.role_in_study != "PM":
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raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="项目权限不足")
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return membership
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async def _authorize_download_user(request: Request, db: AsyncSession):
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token = None
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auth_header = request.headers.get("Authorization")
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if auth_header and auth_header.lower().startswith("bearer "):
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token = auth_header.split(" ", 1)[1]
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if not token:
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token = request.query_params.get("token")
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if not token:
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raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="未登录")
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payload = decode_token(token)
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user = await user_crud.get_by_id(db, uuid.UUID(str(payload.get("sub"))))
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if not user or not user.is_active:
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raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="账号不存在或已停用")
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return user
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@router.post(
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"/attachments",
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response_model=FeeApiResponse[FeeAttachmentRead],
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status_code=status.HTTP_201_CREATED,
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dependencies=[Depends(get_current_user), Depends(require_study_not_locked())],
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)
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async def upload_fee_attachment(
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entity_type: str = Form(...),
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entity_id: uuid.UUID = Form(...),
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file_type: str = Form(...),
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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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) -> FeeApiResponse[FeeAttachmentRead]:
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if entity_type not in ALLOWED_ENTITY_TYPES:
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raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="附件类型无效")
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if file_type not in ALLOWED_FILE_TYPES.get(entity_type, set()):
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raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="附件文件类型无效")
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project_id = await _resolve_project_id(db, entity_type, entity_id)
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await _ensure_project_access(db, project_id, current_user, write=True)
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dest_dir = UPLOAD_ROOT / 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 fee_attachment_crud.create_attachment(
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db,
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entity_type=entity_type,
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entity_id=entity_id,
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file_type=file_type,
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filename=file.filename,
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mime_type=file.content_type,
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size=len(content),
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storage_key=str(dest_path),
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url=None,
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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=project_id,
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entity_type=entity_type,
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entity_id=entity_id,
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action="UPLOAD_FEE_ATTACHMENT",
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detail=f"附件已上传：{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 FeeApiResponse(
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data=FeeAttachmentRead(
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id=attachment.id,
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entity_type=attachment.entity_type,
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entity_id=attachment.entity_id,
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file_type=attachment.file_type,
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filename=attachment.filename,
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mime_type=attachment.mime_type,
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size=attachment.size,
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storage_key=attachment.storage_key,
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url=attachment.url,
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uploaded_by=UserDisplay.model_validate(current_user),
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uploaded_by_id=attachment.uploaded_by,
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uploaded_at=attachment.uploaded_at,
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)
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)
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@router.get(
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"/attachments",
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response_model=FeeApiResponse[list[FeeAttachmentRead]],
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dependencies=[Depends(get_current_user)],
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)
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async def list_fee_attachments(
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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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current_user=Depends(get_current_user),
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) -> FeeApiResponse[list[FeeAttachmentRead]]:
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if entity_type not in ALLOWED_ENTITY_TYPES:
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raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="附件类型无效")
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project_id = await _resolve_project_id(db, entity_type, entity_id)
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await _ensure_project_access(db, project_id, current_user, write=False)
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attachments = await fee_attachment_crud.list_attachments(db, entity_type=entity_type, entity_id=entity_id)
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user_ids = {a.uploaded_by for a in attachments if a.uploaded_by}
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users_map = await user_crud.get_users_by_ids(db, user_ids)
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items: list[FeeAttachmentRead] = []
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for attachment in attachments:
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user = users_map.get(attachment.uploaded_by)
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items.append(
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FeeAttachmentRead(
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id=attachment.id,
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entity_type=attachment.entity_type,
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entity_id=attachment.entity_id,
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file_type=attachment.file_type,
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filename=attachment.filename,
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mime_type=attachment.mime_type,
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size=attachment.size,
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storage_key=attachment.storage_key,
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url=attachment.url,
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uploaded_by=UserDisplay.model_validate(user) if user else None,
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uploaded_by_id=attachment.uploaded_by,
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uploaded_at=attachment.uploaded_at,
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)
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)
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return FeeApiResponse(data=items, meta={"total": len(items)})
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@router.get(
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"/attachments/{attachment_id}/download",
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response_class=FileResponse,
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)
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async def download_fee_attachment(
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attachment_id: uuid.UUID,
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request: Request,
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db: AsyncSession = Depends(get_db_session),
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):
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attachment = await fee_attachment_crud.get_attachment(db, attachment_id)
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if not attachment:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="附件不存在")
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current_user = await _authorize_download_user(request, db)
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project_id = await _resolve_project_id(db, attachment.entity_type, attachment.entity_id)
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await _ensure_project_access(db, project_id, current_user, write=False)
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if not attachment.storage_key or not os.path.exists(attachment.storage_key):
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="服务器未找到文件")
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return FileResponse(
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path=attachment.storage_key,
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filename=attachment.filename,
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media_type=attachment.mime_type or "application/octet-stream",
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headers={"Content-Disposition": f'inline; filename="{attachment.filename}"'},
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)
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@router.delete(
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"/attachments/{attachment_id}",
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status_code=status.HTTP_204_NO_CONTENT,
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dependencies=[Depends(get_current_user), Depends(require_study_not_locked())],
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)
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async def delete_fee_attachment(
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attachment_id: uuid.UUID,
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db: AsyncSession = Depends(get_db_session),
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current_user=Depends(get_current_user),
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) -> None:
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attachment = await fee_attachment_crud.get_attachment(db, attachment_id)
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if not attachment:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="附件不存在")
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project_id = await _resolve_project_id(db, attachment.entity_type, attachment.entity_id)
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membership = await _ensure_project_access(db, project_id, current_user, write=True)
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role_value = current_user.role.value if hasattr(current_user.role, "value") else current_user.role
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can_delete = (
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role_value == "ADMIN"
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or attachment.uploaded_by == current_user.id
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or (membership and getattr(membership, "role_in_study", None) == "PM")
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)
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if not can_delete:
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raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="无权限删除附件")
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await fee_attachment_crud.soft_delete_attachment(db, attachment)
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await audit_crud.log_action(
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db,
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study_id=project_id,
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entity_type=attachment.entity_type,
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entity_id=attachment.entity_id,
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action="DELETE_FEE_ATTACHMENT",
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detail=f"附件已删除：{attachment.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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