upload project source code

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# -*- coding: utf-8 -*-
from typing import Any, Mapping
from fastapi import status
from fastapi.responses import JSONResponse, StreamingResponse, FileResponse
from fastapi.encoders import jsonable_encoder
from starlette.background import BackgroundTask
from pydantic import Field, BaseModel
from app.common.constant import RET
class ResponseSchema(BaseModel):
"""响应模型"""
code: int = Field(default=RET.OK.code, description="业务状态码")
msg: str = Field(default=RET.OK.msg, description="响应消息")
data: Any = Field(default=None, description="响应数据")
status_code: int = Field(default=status.HTTP_200_OK, description="HTTP状态码")
success: bool = Field(default=True, description='操作是否成功')
class SuccessResponse(JSONResponse):
"""成功响应类"""
def __init__(
self,
data: Any = None,
msg: str = RET.OK.msg,
code: int = RET.OK.code,
status_code: int = status.HTTP_200_OK,
success: bool = True
) -> None:
"""
初始化成功响应类
参数:
- data (Any | None): 响应数据。
- msg (str): 响应消息。
- code (int): 业务状态码。
- status_code (int): HTTP 状态码。
- success (bool): 操作是否成功。
返回:
- None
"""
content = ResponseSchema(
code=code,
msg=msg,
data=data,
status_code=status_code,
success=success
).model_dump()
super().__init__(content=jsonable_encoder(content), status_code=status_code)
class ErrorResponse(JSONResponse):
"""错误响应类"""
def __init__(
self,
data: Any = None,
msg: str = RET.ERROR.msg,
code: int = RET.ERROR.code,
status_code: int = status.HTTP_400_BAD_REQUEST,
success: bool = False
) -> None:
"""
初始化错误响应类
参数:
- data (Any): 响应数据。
- msg (str): 响应消息。
- code (int): 业务状态码。
- status_code (int): HTTP 状态码。
- success (bool): 操作是否成功。
返回:
- None
"""
content = ResponseSchema(
code=code,
msg=msg,
data=data,
status_code=status_code,
success=success
).model_dump()
super().__init__(content=jsonable_encoder(content), status_code=status_code)
class StreamResponse(StreamingResponse):
"""流式响应类"""
# 默认流式响应头,确保浏览器实时处理流式数据
DEFAULT_STREAM_HEADERS = {
"Cache-Control": "no-cache, no-store, must-revalidate",
"X-Accel-Buffering": "no", # 禁用 Nginx 缓冲
"Connection": "keep-alive",
"Content-Encoding": "identity", # 禁用 GZip 压缩,避免缓冲流式数据
}
def __init__(
self,
data: Any = None,
status_code: int = status.HTTP_200_OK,
headers: Mapping[str, str] | None = None,
media_type: str | None = None,
background: BackgroundTask | None = None
) -> None:
"""
初始化流式响应类
参数:
- data (Any): 响应数据。
- status_code (int): HTTP 状态码。
- headers (Mapping[str, str] | None): 响应头。
- media_type (str | None): 媒体类型。
- background (BackgroundTask | None): 后台任务。
返回:
- None
"""
# 合并默认流式响应头和自定义响应头
merged_headers = dict(self.DEFAULT_STREAM_HEADERS)
if headers:
merged_headers.update(headers)
super().__init__(
content=data,
status_code=status_code,
media_type=media_type,
headers=merged_headers,
background=background
)
class UploadFileResponse(FileResponse):
"""
文件响应
"""
def __init__(
self,
file_path: str,
filename: str,
media_type: str = "application/octet-stream",
headers: Mapping[str, str] | None = None,
background: BackgroundTask | None = None,
status_code: int = 200
):
"""
初始化文件响应类
参数:
- file_path (str): 文件路径。
- filename (str): 文件名。
- media_type (str): 文件类型。
- headers (Mapping[str, str] | None): 响应头。
- background (BackgroundTask | None): 后台任务。
- status_code (int): HTTP 状态码。
返回:
- None
"""
super().__init__(
path=file_path,
status_code=status_code,
headers=headers,
media_type=media_type,
background=background,
filename=filename,
stat_result=None,
method=None,
content_disposition_type="attachment"
)