70 lines
2.1 KiB
Python
70 lines
2.1 KiB
Python
# -*- coding: utf-8 -*-
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from typing import Dict
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from fastapi import UploadFile
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from app.core.exceptions import CustomException
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from app.core.base_schema import UploadResponseSchema, DownloadFileSchema
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from app.utils.upload_util import UploadUtil
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class FileService:
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"""
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文件管理服务层
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"""
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@classmethod
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async def upload_service(cls, base_url: str, file: UploadFile, upload_type: str = 'local') -> Dict:
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"""
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上传文件。
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参数:
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- base_url (str): 基础访问 URL。
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- file (UploadFile): 上传文件对象。
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- upload_type (str): 上传类型，'local' 或 'oss'，默认 'local'。
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返回:
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- Dict: 上传响应字典。
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异常:
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- CustomException: 当未选择文件或上传类型错误时抛出。
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"""
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if not file:
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raise CustomException(msg="请选择要上传的文件")
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if upload_type == 'local':
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filename, filepath, file_url = await UploadUtil.upload_file(file=file, base_url=base_url)
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else:
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raise CustomException(msg="上传类型错误")
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return UploadResponseSchema(
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file_path=f'{filepath}',
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file_name=filename,
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origin_name=file.filename,
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file_url=f'{file_url}',
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).model_dump()
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@classmethod
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async def download_service(cls, file_path: str) -> DownloadFileSchema:
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"""
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下载文件。
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参数:
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- file_path (str): 文件路径。
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返回:
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- DownloadFileSchema: 下载文件响应对象。
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异常:
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- CustomException: 当未选择文件或文件不存在时抛出。
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"""
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if not file_path:
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raise CustomException(msg="请选择要下载的文件")
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if not UploadUtil.check_file_exists(file_path):
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raise CustomException(msg="文件不存在")
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file_name = UploadUtil.download_file(file_path)
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return DownloadFileSchema(
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file_path=file_path,
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file_name=str(file_name),
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) |