30a263ed50
后端修复： - 白板删除踢人失效：delete_whiteboard 改 async def，删除后直接 await hub.close_board()。原实现用 asyncio.get_running_loop() 在同步 REST handler （threadpool）里调用必抛 RuntimeError 被 except 吞掉，close_board 从不执行。 同时移除 service 的 hub 依赖（close_board 改由 controller 调用，service 只管 DB）。 - delete_file 去重复查询：原先 get_out_with_disk_path + get_by_id 查两次， 合并为一次；磁盘 unlink 失败加 logger.warning（原静默吞掉致磁盘泄漏无记录）。 - get_hub 单例加 threading.Lock 双重检查（防 REST threadpool 与 WS 事件循环 并发首访各建一个 hub）。 - file_controller 公开 /api/files list 加 Query(ge=1, le=10000) 约束（原无上限可 DoS）。 前端修复： - applyRemoteUpdate 有未发送编辑时重发：合并远端更新后若本地有 pending 编辑 （editor.value !== lastSentText）重新 scheduleSend，避免被 lastSentText 短路丢弃。 - init 不覆盖未发送编辑：断线重连后若本地有未发送内容，作为新版本发上去而非被 init 覆盖。 - applyRemoteUpdate 仅在编辑器已有焦点时恢复焦点，避免抢按钮焦点。 - api() 401 时 location.reload() 触发浏览器 Basic Auth 弹窗（原只 toast 卡死）。 README： - 精简重写，补全 Ubuntu 从 0 安装、Apache 反代（含 WS）、配置项表格、防火墙说明。
90 lines
3.0 KiB
Python
90 lines
3.0 KiB
Python
"""文件上传 / 列表 / 下载接口。"""
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from __future__ import annotations
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from fastapi import APIRouter, Depends, File, HTTPException, Query, UploadFile
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from fastapi.responses import FileResponse
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from sqlalchemy.orm import Session
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from ..database import get_db
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from ..dao.uploaded_file_dao import UploadedFileDAO
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from ..schemas.file import (
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FileListResponse,
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FileUploadResponse,
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UploadedFileOut,
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)
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from ..services.upload_service import UploadService
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router = APIRouter(prefix="/api/files", tags=["files"])
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def _service(db: Session = Depends(get_db)) -> UploadService:
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return UploadService(UploadedFileDAO(db))
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@router.post(
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"/upload",
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response_model=FileUploadResponse,
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summary="上传单个文件（流式，支持大文件）",
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description=(
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"multipart/form-data 上传，按 1 MiB 分片流式落盘，内存占用恒定；"
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"落盘过程中计算 SHA-256 并入库。\n\n"
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"极大或极慢的传输建议改用分片上传接口（/api/files/chunk-uploads）或 SFTP。"
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),
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)
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async def upload_file(
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file: UploadFile = File(..., description="要上传的文件"),
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service: UploadService = Depends(_service),
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) -> FileUploadResponse:
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if not file.filename:
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raise HTTPException(400, "请求缺少 'file' 字段")
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return service.stream_to_disk(file, source="http", uploaded_by="anonymous")
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@router.get("", response_model=FileListResponse, summary="列出已上传的文件")
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def list_files(
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limit: int = Query(100, ge=1, le=10000),
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offset: int = Query(0, ge=0),
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service: UploadService = Depends(_service),
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) -> FileListResponse:
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total, items = service.list_files(limit=limit, offset=offset)
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return FileListResponse(total=total, items=items)
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@router.get(
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"/exists",
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response_model=UploadedFileOut,
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summary="按 sha256 查询是否已上传",
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description="命中返回 200 + 元数据；未命中返回 404。供客户端在上传前去重。",
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)
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def file_exists(
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sha256: str,
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service: UploadService = Depends(_service),
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) -> UploadedFileOut:
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out = service.find_by_sha256(sha256)
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if out is None:
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raise HTTPException(404, "未找到匹配的 sha256")
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return out
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@router.get("/{file_id}", response_model=UploadedFileOut, summary="查询单个文件元数据")
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def get_file(file_id: int, service: UploadService = Depends(_service)) -> UploadedFileOut:
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out = service.get_out(file_id)
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if out is None:
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raise HTTPException(404, "文件不存在")
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return out
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@router.get("/{file_id}/download", summary="下载文件")
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def download_file(file_id: int, service: UploadService = Depends(_service)) -> FileResponse:
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out, path = service.get_out_with_disk_path(file_id)
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if out is None:
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raise HTTPException(404, "文件不存在")
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if path is None or not path.exists():
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raise HTTPException(410, "文件实体已不在磁盘上")
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return FileResponse(
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path=str(path),
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media_type=out.content_type or "application/octet-stream",
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filename=out.original_filename,
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)
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