绝尘
edd5b7c869
后端改进：
- API 返回 FileOperationResult 结构体（类型安全）
- 所有操作返回文件信息，支持精确更新
- 删除过度抽象的接口和全局函数包装器（桌面程序不需要）
前端改进：
- 精确更新文件列表（避免整目录刷新）
- 分离 add/remove/update 三个独立函数
- 重命名前智能关闭文件/文件夹，解决占用问题
- 优化错误提示，用户友好提示
技术细节：
- 定义 FileOperationResult 结构体替代 map[string]interface{}
- 前端 API 返回类型从 void 改为 any
- 保留运行时状态（如 is_favorite）
- 智能识别文件占用错误并给出解决建议
776 lines
20 KiB
Go
776 lines
20 KiB
Go
package filesystem
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import (
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"context"
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"fmt"
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"os"
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"os/exec"
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"path/filepath"
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"runtime"
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"sync"
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"time"
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"u-desk/internal/common"
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)
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// FileOperationResult 文件操作结果
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type FileOperationResult struct {
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Path string `json:"path"`
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Name string `json:"name"`
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Size int64 `json:"size"`
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SizeStr string `json:"size_str,omitempty"`
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IsDir bool `json:"is_dir"`
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ModTime string `json:"mod_time,omitempty"`
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Mode string `json:"mode,omitempty"`
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OldPath string `json:"old_path,omitempty"` // 仅重命名操作时有值
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Deleted bool `json:"deleted,omitempty"` // 仅删除操作时有值
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}
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// FileSystemService 文件系统服务
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// 统一管理所有文件系统相关的功能，使用依赖注入而非全局变量
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type FileSystemService struct {
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// 核心组件
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config *Config
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pathValidator PathValidator
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fileTypeManager FileTypeManager
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// 基础设施组件
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auditLogger *AuditLogger
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recycleBin *RecycleBin
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lockChecker *FileLockChecker
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// 状态管理
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mu sync.RWMutex
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initialized bool
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}
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// NewFileSystemService 创建新的文件系统服务
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// 使用依赖注入，所有组件通过参数传入，便于测试和替换
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func NewFileSystemService(config *Config) (*FileSystemService, error) {
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if config == nil {
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config = DefaultConfig()
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}
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service := &FileSystemService{
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config: config,
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pathValidator: NewPathValidator(config),
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fileTypeManager: NewFileTypeManager(config),
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}
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// 初始化基础设施组件
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if err := service.initializeComponents(); err != nil {
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return nil, fmt.Errorf("初始化文件系统服务失败: %w", err)
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}
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service.initialized = true
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return service, nil
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}
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// initializeComponents 初始化各个组件
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func (s *FileSystemService) initializeComponents() error {
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// 1. 初始化审计日志
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if s.config.Features.AuditLog {
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if err := s.initAuditLogger(); err != nil {
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return fmt.Errorf("初始化审计日志失败: %w", err)
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}
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}
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// 2. 初始化回收站
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if s.config.Features.RecycleBin {
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if err := s.initRecycleBin(); err != nil {
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return fmt.Errorf("初始化回收站失败: %w", err)
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}
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}
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// 3. 初始化文件锁检查器
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if s.config.Features.FileLockCheck {
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s.lockChecker = NewFileLockChecker()
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}
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return nil
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}
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// initAuditLogger 初始化审计日志
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func (s *FileSystemService) initAuditLogger() error {
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logDir := filepath.Join(common.GetUserDataDir(), "logs")
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logger, err := NewAuditLogger(logDir)
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if err != nil {
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return err
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}
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s.auditLogger = logger
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return nil
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}
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// initRecycleBin 初始化回收站
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func (s *FileSystemService) initRecycleBin() error {
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recycleBinPath := filepath.Join(common.GetUserDataDir(), "recycle_bin")
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bin, err := NewRecycleBin(recycleBinPath)
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if err != nil {
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return err
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}
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s.recycleBin = bin
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return nil
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}
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// ========== 核心文件操作 ==========
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// Read 读取文件内容（实现 FileService 接口）
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func (s *FileSystemService) Read(path string) (string, error) {
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return s.ReadFile(path)
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}
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// ReadFile 读取文件内容
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func (s *FileSystemService) ReadFile(path string) (string, error) {
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// 路径验证
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if err := s.validatePath(path); err != nil {
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return "", err
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}
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// 读取文件
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data, err := os.ReadFile(path)
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if err != nil {
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return "", fmt.Errorf("读取文件失败: %v", err)
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}
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s.logRead(path, int64(len(data)), nil)
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return string(data), nil
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}
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// Write 写入文件内容（实现 FileService 接口）
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func (s *FileSystemService) Write(path, content string) error {
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return s.WriteFile(path, content)
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}
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// WriteFile 写入文件
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func (s *FileSystemService) WriteFile(path, content string) error {
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// 路径验证
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if err := s.validatePath(path); err != nil {
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return err
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}
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// 创建目录
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dir := filepath.Dir(path)
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if err := os.MkdirAll(dir, DefaultDirPermissions); err != nil {
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return fmt.Errorf("创建目录失败: %v", err)
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}
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// 写入文件
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data := []byte(content)
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if err := os.WriteFile(path, data, DefaultFilePermissions); err != nil {
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s.logWrite(path, int64(len(data)), err)
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return fmt.Errorf("写入文件失败: %v", err)
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}
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s.logWrite(path, int64(len(data)), nil)
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return nil
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}
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// List 列出目录内容（实现 FileService 接口）
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func (s *FileSystemService) List(path string) ([]map[string]interface{}, error) {
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return s.ListDir(path)
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}
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// Open 打开文件（实现 FileService 接口）
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func (s *FileSystemService) Open(path string) error {
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// 使用系统默认程序打开文件
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var cmd *exec.Cmd
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switch runtime.GOOS {
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case "windows":
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cmd = exec.Command("cmd", "/c", "start", "", path)
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case "darwin":
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cmd = exec.Command("open", path)
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default:
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cmd = exec.Command("xdg-open", path)
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}
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return cmd.Start()
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}
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// Delete 删除文件或目录（实现 FileService 接口）
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func (s *FileSystemService) Delete(path string) (*FileOperationResult, error) {
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return s.DeletePathWithContext(context.Background(), path)
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}
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// DeletePath 删除文件或目录
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func (s *FileSystemService) DeletePath(path string) (*FileOperationResult, error) {
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return s.DeletePathWithContext(context.Background(), path)
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}
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// DeletePathWithContext 带上下文的删除操作，返回被删除文件的信息
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func (s *FileSystemService) DeletePathWithContext(ctx context.Context, path string) (*FileOperationResult, error) {
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// 路径验证
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if err := s.validatePath(path); err != nil {
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return nil, err
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}
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// 获取文件信息（在删除前保存）
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info, err := os.Stat(path)
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if err != nil {
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if os.IsNotExist(err) {
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return nil, fmt.Errorf("文件或目录不存在")
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}
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return nil, fmt.Errorf("获取文件信息失败: %v", err)
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}
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// 检查删除限制
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exceeds, details, checkErr := CheckDeleteRestrictions(path, info, s.config)
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if checkErr != nil {
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return nil, checkErr
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}
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if exceeds {
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if s.config.Security.DeleteRestrictions.RequireConfirm {
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return nil, &DeleteRestrictionWarning{
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Path: path,
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Details: details,
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Info: info,
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}
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}
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return nil, fmt.Errorf("删除限制: %s", details)
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}
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// 文件锁检查（可选）
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if s.lockChecker != nil {
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if err := s.lockChecker.SafeDeleteWithLockCheck(path); err != nil {
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return nil, err
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}
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}
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// 执行删除
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var deleteErr error
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if info.IsDir() {
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deleteErr = os.RemoveAll(path)
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} else {
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deleteErr = os.Remove(path)
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}
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s.logDelete(path, info.IsDir(), info.Size(), deleteErr)
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if deleteErr != nil {
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return nil, fmt.Errorf("删除失败: %v", deleteErr)
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}
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// 如果启用回收站，移动到回收站而非永久删除
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if s.recycleBin != nil {
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// 检查是否已在回收站中
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if !isInRecycleBin(path) {
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if err := s.recycleBin.MoveToRecycleBin(path); err != nil {
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// 回收站失败，记录但继续
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fmt.Printf("[警告] 移动到回收站失败: %v\n", err)
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}
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}
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}
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// 返回被删除的文件信息，用于前端更新
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return &FileOperationResult{
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Path: path,
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Name: info.Name(),
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Size: info.Size(),
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SizeStr: formatBytes(info.Size()),
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IsDir: info.IsDir(),
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ModTime: info.ModTime().Format("2006-01-02 15:04:05"),
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Mode: info.Mode().String(),
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Deleted: true,
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}, nil
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}
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// ListDir 列出目录内容
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func (s *FileSystemService) ListDir(path string) ([]map[string]interface{}, error) {
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// 路径验证
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if err := s.validatePath(path); err != nil {
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return nil, err
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}
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// 读取目录
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entries, err := os.ReadDir(path)
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if err != nil {
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return nil, fmt.Errorf("读取目录失败: %v", err)
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}
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// 转换为结果格式
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result := make([]map[string]interface{}, 0, len(entries))
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for _, entry := range entries {
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info, err := entry.Info()
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if err != nil {
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continue
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}
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fullPath := filepath.Join(path, entry.Name())
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result = append(result, map[string]interface{}{
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"name": entry.Name(),
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"path": fullPath,
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"is_dir": entry.IsDir(),
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"size": info.Size(),
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"mod_time": info.ModTime().Format("2006-01-02 15:04:05"),
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})
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}
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s.logAudit(AuditLogEntry{
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Timestamp: getCurrentTimestamp(),
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Operation: OperationList,
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Path: path,
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IsDirectory: true,
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Success: true,
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})
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return result, nil
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}
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// CreateDir 创建目录，返回创建的目录信息
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func (s *FileSystemService) CreateDir(path string) (*FileOperationResult, error) {
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if err := s.validatePath(path); err != nil {
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return nil, err
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}
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if err := os.MkdirAll(path, DefaultDirPermissions); err != nil {
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return nil, fmt.Errorf("创建目录失败: %v", err)
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}
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s.logAudit(AuditLogEntry{
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Timestamp: getCurrentTimestamp(),
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Operation: OperationCreate,
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Path: path,
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IsDirectory: true,
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Success: true,
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})
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// 获取创建的目录信息
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info, err := os.Stat(path)
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if err != nil {
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// 创建成功但获取信息失败，返回基本信息
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return &FileOperationResult{
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Path: path,
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Name: filepath.Base(path),
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IsDir: true,
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}, nil
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}
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return &FileOperationResult{
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Path: path,
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Name: info.Name(),
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Size: info.Size(),
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SizeStr: formatBytes(info.Size()),
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IsDir: true,
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ModTime: info.ModTime().Format("2006-01-02 15:04:05"),
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Mode: info.Mode().String(),
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}, nil
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}
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// CreateFile 创建空文件，返回创建的文件信息
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func (s *FileSystemService) CreateFile(path string) (*FileOperationResult, error) {
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if err := s.validatePath(path); err != nil {
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return nil, err
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}
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// 检查文件是否已存在
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if _, err := os.Stat(path); err == nil {
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return nil, fmt.Errorf("文件已存在")
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}
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file, err := os.Create(path)
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if err != nil {
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return nil, fmt.Errorf("创建文件失败: %v", err)
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}
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file.Close()
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s.logAudit(AuditLogEntry{
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Timestamp: getCurrentTimestamp(),
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Operation: OperationCreate,
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Path: path,
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IsDirectory: false,
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Success: true,
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})
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// 获取创建的文件信息
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info, err := os.Stat(path)
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if err != nil {
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// 创建成功但获取信息失败，返回基本信息
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return &FileOperationResult{
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Path: path,
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Name: filepath.Base(path),
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IsDir: false,
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Size: 0,
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}, nil
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}
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return &FileOperationResult{
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Path: path,
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Name: info.Name(),
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Size: info.Size(),
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SizeStr: formatBytes(info.Size()),
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IsDir: false,
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ModTime: info.ModTime().Format("2006-01-02 15:04:05"),
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Mode: info.Mode().String(),
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}, nil
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}
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// GetInfo 获取文件信息（实现 FileService 接口）
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func (s *FileSystemService) GetInfo(path string) (map[string]interface{}, error) {
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return s.GetFileInfo(path)
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}
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// GetFileInfo 获取文件信息
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func (s *FileSystemService) GetFileInfo(path string) (map[string]interface{}, error) {
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if err := s.validatePath(path); err != nil {
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return nil, err
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}
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info, err := os.Stat(path)
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if err != nil {
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if os.IsNotExist(err) {
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return nil, fmt.Errorf("文件或目录不存在")
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}
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return nil, fmt.Errorf("获取文件信息失败: %v", err)
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}
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return map[string]interface{}{
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"name": info.Name(),
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"path": path,
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"size": info.Size(),
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"size_str": formatBytes(info.Size()),
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"is_dir": info.IsDir(),
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"mod_time": info.ModTime().Format("2006-01-02 15:04:05"),
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"mode": info.Mode().String(),
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}, nil
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}
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// OpenPath 打开文件或目录（使用系统默认程序）
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func (s *FileSystemService) OpenPath(path string) error {
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if err := s.validatePath(path); err != nil {
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return err
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}
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return OpenPath(path)
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}
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// RenamePath 重命名文件或目录，返回新文件信息
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func (s *FileSystemService) RenamePath(oldPath, newPath string) (*FileOperationResult, error) {
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// 验证旧路径
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if err := s.validatePath(oldPath); err != nil {
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return nil, err
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}
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// 验证新路径
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if err := s.validatePath(newPath); err != nil {
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return nil, err
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}
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// 执行重命名
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if err := os.Rename(oldPath, newPath); err != nil {
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return nil, fmt.Errorf("重命名失败: %v", err)
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}
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s.logAudit(AuditLogEntry{
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Timestamp: getCurrentTimestamp(),
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Operation: OperationRename,
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Path: newPath,
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OldPath: oldPath,
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Success: true,
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})
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// 获取新文件信息
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info, err := os.Stat(newPath)
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if err != nil {
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// 重命名成功但获取信息失败，返回基本信息
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return &FileOperationResult{
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Path: newPath,
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Name: filepath.Base(newPath),
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OldPath: oldPath,
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}, nil
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}
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return &FileOperationResult{
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Path: newPath,
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Name: info.Name(),
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Size: info.Size(),
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SizeStr: formatBytes(info.Size()),
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IsDir: info.IsDir(),
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ModTime: info.ModTime().Format("2006-01-02 15:04:05"),
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Mode: info.Mode().String(),
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OldPath: oldPath,
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}, nil
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}
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// ========== ZIP操作接口 ==========
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// ListZip 列出ZIP文件内容
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func (s *FileSystemService) ListZip(zipPath string) ([]map[string]interface{}, error) {
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return ListZipContents(zipPath)
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}
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// ListZipContents 列出ZIP文件内容（别名，保持向后兼容）
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func (s *FileSystemService) ListZipContents(zipPath string) ([]map[string]interface{}, error) {
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return ListZipContents(zipPath)
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}
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// ExtractZipFile 从ZIP提取文件内容
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func (s *FileSystemService) ExtractZipFile(zipPath, filePath string) (string, error) {
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return ExtractFileFromZip(zipPath, filePath)
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}
|
||
|
||
// ExtractFileFromZip 从ZIP提取文件内容（别名，保持向后兼容）
|
||
func (s *FileSystemService) ExtractFileFromZip(zipPath, filePath string) (string, error) {
|
||
return ExtractFileFromZip(zipPath, filePath)
|
||
}
|
||
|
||
// ExtractZipFileToTemp 从ZIP提取文件到临时目录
|
||
func (s *FileSystemService) ExtractZipFileToTemp(zipPath, filePath string) (string, error) {
|
||
return ExtractFileFromZipToTemp(zipPath, filePath)
|
||
}
|
||
|
||
// ExtractFileFromZipToTemp 从ZIP提取文件到临时目录（别名，保持向后兼容）
|
||
func (s *FileSystemService) ExtractFileFromZipToTemp(zipPath, filePath string) (string, error) {
|
||
return ExtractFileFromZipToTemp(zipPath, filePath)
|
||
}
|
||
|
||
// GetZipFileInfo 获取ZIP文件信息
|
||
func (s *FileSystemService) GetZipFileInfo(zipPath, filePath string) (map[string]interface{}, error) {
|
||
return GetZipFileInfo(zipPath, filePath)
|
||
}
|
||
|
||
// ========== 辅助函数 ==========
|
||
|
||
// getCurrentTimestamp 获取当前时间戳
|
||
func getCurrentTimestamp() time.Time {
|
||
return time.Now()
|
||
}
|
||
|
||
// isInRecycleBin 检查路径是否在回收站中
|
||
func isInRecycleBin(path string) bool {
|
||
recycleBinPath := filepath.Join(common.GetUserDataDir(), "recycle_bin")
|
||
return filepath.HasPrefix(filepath.Clean(path), filepath.Clean(recycleBinPath))
|
||
}
|
||
|
||
// ========== 辅助方法 ==========
|
||
|
||
// validatePath 验证路径
|
||
func (s *FileSystemService) validatePath(path string) error {
|
||
err := s.pathValidator.Validate(path)
|
||
if err != nil && err.IsError {
|
||
return err
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetConfig 获取配置
|
||
func (s *FileSystemService) GetConfig() *Config {
|
||
return s.config
|
||
}
|
||
|
||
// GetAuditLogger 获取审计日志记录器
|
||
func (s *FileSystemService) GetAuditLogger() *AuditLogger {
|
||
return s.auditLogger
|
||
}
|
||
|
||
// GetRecycleBin 获取回收站
|
||
func (s *FileSystemService) GetRecycleBin() *RecycleBin {
|
||
return s.recycleBin
|
||
}
|
||
|
||
// ========== 审计日志接口 ==========
|
||
|
||
// logAudit 安全记录审计日志（自动处理 nil 检查）
|
||
func (s *FileSystemService) logAudit(entry AuditLogEntry) {
|
||
if s.auditLogger != nil {
|
||
s.auditLogger.Log(entry)
|
||
}
|
||
}
|
||
|
||
// logRead 记录读取操作审计日志
|
||
func (s *FileSystemService) logRead(path string, size int64, err error) {
|
||
if s.auditLogger != nil {
|
||
s.auditLogger.LogRead(path, size, err)
|
||
}
|
||
}
|
||
|
||
// logWrite 记录写入操作审计日志
|
||
func (s *FileSystemService) logWrite(path string, size int64, err error) {
|
||
if s.auditLogger != nil {
|
||
s.auditLogger.LogWrite(path, size, err)
|
||
}
|
||
}
|
||
|
||
// logDelete 记录删除操作审计日志
|
||
func (s *FileSystemService) logDelete(path string, isDir bool, size int64, err error) {
|
||
if s.auditLogger != nil {
|
||
s.auditLogger.LogDelete(path, isDir, size, err)
|
||
}
|
||
}
|
||
|
||
// GetAuditLogs 获取审计日志
|
||
func (s *FileSystemService) GetAuditLogs(limit int) ([]map[string]interface{}, error) {
|
||
if s.auditLogger == nil {
|
||
return []map[string]interface{}{}, nil
|
||
}
|
||
|
||
logDir := filepath.Join(common.GetUserDataDir(), "logs")
|
||
entries, err := GetRecentLogs(logDir, limit)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
result := make([]map[string]interface{}, len(entries))
|
||
for i, entry := range entries {
|
||
result[i] = map[string]interface{}{
|
||
"timestamp": entry.Timestamp.Format("2006-01-02 15:04:05"),
|
||
"operation": entry.Operation,
|
||
"path": entry.Path,
|
||
"size": entry.Size,
|
||
"is_directory": entry.IsDirectory,
|
||
"success": entry.Success,
|
||
"error": entry.Error,
|
||
}
|
||
}
|
||
|
||
return result, nil
|
||
}
|
||
|
||
// ========== 回收站接口 ==========
|
||
|
||
// GetRecycleBinEntries 获取回收站条目
|
||
func (s *FileSystemService) GetRecycleBinEntries() ([]map[string]interface{}, error) {
|
||
if s.recycleBin == nil {
|
||
return []map[string]interface{}{}, nil
|
||
}
|
||
|
||
entries := s.recycleBin.ListEntries()
|
||
result := make([]map[string]interface{}, len(entries))
|
||
|
||
for i, entry := range entries {
|
||
result[i] = map[string]interface{}{
|
||
"original_path": entry.OriginalPath,
|
||
"deleted_path": entry.DeletedPath,
|
||
"deleted_time": entry.DeletedTime.Format("2006-01-02 15:04:05"),
|
||
"size": entry.Size,
|
||
"is_directory": entry.IsDirectory,
|
||
}
|
||
}
|
||
|
||
return result, nil
|
||
}
|
||
|
||
// RestoreFromRecycleBin 从回收站恢复文件
|
||
func (s *FileSystemService) RestoreFromRecycleBin(recyclePath string) error {
|
||
if s.recycleBin == nil {
|
||
return fmt.Errorf("回收站未初始化")
|
||
}
|
||
return s.recycleBin.RestoreFromRecycleBin(recyclePath)
|
||
}
|
||
|
||
// DeletePermanently 永久删除回收站中的文件
|
||
func (s *FileSystemService) DeletePermanently(recyclePath string) error {
|
||
if s.recycleBin == nil {
|
||
return fmt.Errorf("回收站未初始化")
|
||
}
|
||
return s.recycleBin.DeletePermanently(recyclePath)
|
||
}
|
||
|
||
// EmptyRecycleBin 清空回收站
|
||
func (s *FileSystemService) EmptyRecycleBin() error {
|
||
if s.recycleBin == nil {
|
||
return fmt.Errorf("回收站未初始化")
|
||
}
|
||
return s.recycleBin.Empty()
|
||
}
|
||
|
||
// ResolveShortcut 解析快捷方式（.lnk）文件，返回目标路径
|
||
func (s *FileSystemService) ResolveShortcut(lnkPath string) (targetPath string, err error) {
|
||
// 验证路径
|
||
if err := s.validatePath(lnkPath); err != nil {
|
||
return "", fmt.Errorf("路径验证失败: %w", err)
|
||
}
|
||
|
||
// 检查文件扩展名
|
||
if filepath.Ext(lnkPath) != ".lnk" {
|
||
return "", fmt.Errorf("不是快捷方式文件")
|
||
}
|
||
|
||
// 检查文件是否存在
|
||
if _, err := os.Stat(lnkPath); os.IsNotExist(err) {
|
||
return "", fmt.Errorf("快捷方式文件不存在")
|
||
}
|
||
|
||
// 使用 Windows PowerShell 解析 lnk 文件
|
||
// 这种方法更可靠，不需要依赖第三方库
|
||
if runtime.GOOS == "windows" {
|
||
// 创建 PowerShell 脚本
|
||
psScript := fmt.Sprintf(
|
||
"$shell = New-Object -ComObject WScript.Shell; "+
|
||
"$shortcut = $shell.CreateShortcut('%s'); "+
|
||
"$shortcut.TargetPath",
|
||
lnkPath,
|
||
)
|
||
|
||
// 执行 PowerShell 命令
|
||
cmd := exec.Command("powershell", "-NoProfile", "-NonInteractive", "-Command", psScript)
|
||
output, err := cmd.Output()
|
||
if err != nil {
|
||
return "", fmt.Errorf("解析快捷方式失败: %w", err)
|
||
}
|
||
|
||
// 去除空白字符
|
||
targetPath = string(output)
|
||
targetPath = filepath.Clean(targetPath)
|
||
|
||
// 如果目标路径为空，返回错误
|
||
if targetPath == "" || targetPath == "." {
|
||
return "", fmt.Errorf("快捷方式目标路径为空")
|
||
}
|
||
|
||
return targetPath, nil
|
||
}
|
||
|
||
// 非 Windows 系统暂不支持
|
||
return "", fmt.Errorf("当前系统不支持快捷方式解析")
|
||
}
|
||
|
||
// Close 关闭服务，释放资源
|
||
func (s *FileSystemService) Close(ctx context.Context) error {
|
||
s.mu.Lock()
|
||
defer s.mu.Unlock()
|
||
|
||
if !s.initialized {
|
||
return nil
|
||
}
|
||
|
||
// 关闭审计日志
|
||
if s.auditLogger != nil {
|
||
if err := s.auditLogger.Close(); err != nil {
|
||
return fmt.Errorf("关闭审计日志失败: %w", err)
|
||
}
|
||
}
|
||
|
||
s.initialized = false
|
||
return nil
|
||
}
|
||
|
||
// ========== 全局服务实例（向后兼容）==========
|
||
|
||
var (
|
||
globalService *FileSystemService
|
||
globalServiceOnce sync.Once
|
||
)
|
||
|
||
// GetGlobalService 获取全局文件系统服务实例（单例）
|
||
// 保持向后兼容，但推荐使用依赖注入
|
||
func GetGlobalService() (*FileSystemService, error) {
|
||
var initErr error
|
||
globalServiceOnce.Do(func() {
|
||
globalService, initErr = NewFileSystemService(DefaultConfig())
|
||
})
|
||
return globalService, initErr
|
||
}
|
||
|
||
// InitGlobalFileSystem 初始化全局文件系统（兼容旧代码）
|
||
func InitGlobalFileSystem() error {
|
||
_, err := GetGlobalService()
|
||
return err
|
||
}
|
||
|
||
// CloseGlobalFileSystem 关闭全局文件系统
|
||
func CloseGlobalFileSystem(ctx context.Context) error {
|
||
if globalService != nil {
|
||
return globalService.Close(ctx)
|
||
}
|
||
return nil
|
||
}
|