Method get_file_response

core/storage.py:141–163

(self, file_code: FileCodes)

        return await get_file_url(file_code.code)

    async def get_file_response(self, file_code: FileCodes):
        file_path = self.root_path / await file_code.get_file_path()
        if not file_path.exists():
            return APIResponse(code=404, detail="文件已过期删除")
        filename = f"{file_code.prefix}{file_code.suffix}"
        encoded_filename = quote(filename, safe='')
        content_disposition = f"attachment; filename*=UTF-8''{encoded_filename}"
        
        # 尝试获取文件系统大小，如果成功则设置 Content-Length
        headers = {"Content-Disposition": content_disposition}
        try:
            content_length = file_path.stat().st_size
            headers["Content-Length"] = str(content_length)
        except Exception:
            # 如果获取文件大小失败，则不提供 Content-Length
            pass
        
        return FileResponse(
            file_path,
            media_type="application/octet-stream",
            headers=headers,
            filename=filename  # 保留原始文件名以备某些场景使用
        )

    async def save_chunk(self, upload_id: str, chunk_index: int, chunk_data: bytes, chunk_hash: str, save_path: str):
        """