354 lines
8.9 KiB
Go
354 lines
8.9 KiB
Go
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package service
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import (
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"context"
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"cms-api/internal/dao"
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"cms-api/internal/model"
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"time"
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"github.com/gogf/gf/v2/crypto/gmd5"
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"github.com/gogf/gf/v2/errors/gerror"
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"github.com/gogf/gf/v2/frame/g"
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"github.com/gogf/gf/v2/net/ghttp"
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"github.com/gogf/gf/v2/os/gfile"
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"github.com/gogf/gf/v2/os/gtime"
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"github.com/gogf/gf/v2/util/gconv"
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"github.com/gogf/gf/v2/util/grand"
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)
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type sAttachment struct{}
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func Attachment() *sAttachment {
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return &sAttachment{}
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}
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// Upload 上传文件
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func (s *sAttachment) Upload(ctx context.Context, file *ghttp.UploadFile, uploadType string) (*model.Attachment, error) {
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// 检查文件大小
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maxSize := int64(10 * 1024 * 1024) // 10MB
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if file.Size > maxSize {
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return nil, gerror.New("文件大小不能超过10MB")
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}
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// 检查文件类型
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if !s.isAllowedFileType(file.Filename) {
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return nil, gerror.New("不支持的文件类型")
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}
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// 生成文件名和路径
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fileName, filePath, fileUrl := s.generateFilePath(file.Filename, uploadType)
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// 确保目录存在
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dir := filepath.Dir(filePath)
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if !gfile.Exists(dir) {
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if err := gfile.Mkdir(dir); err != nil {
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return nil, gerror.New("创建目录失败")
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}
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}
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// 保存文件
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if _, err := file.Save(filePath, true); err != nil {
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return nil, gerror.New("保存文件失败: " + err.Error())
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}
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// 获取上传者ID
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uploadedBy := gconv.Int(g.RequestFromCtx(ctx).GetCtxVar("admin_id"))
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if uploadedBy == 0 {
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uploadedBy = gconv.Int(g.RequestFromCtx(ctx).GetCtxVar("user_id"))
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}
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// 获取客户端IP
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uploadIp := g.RequestFromCtx(ctx).GetClientIp()
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// 创建附件记录
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attachment := &model.Attachment{
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OriginalName: file.Filename,
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FileName: fileName,
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FilePath: filePath,
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FileUrl: fileUrl,
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FileSize: file.Size,
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FileType: s.getFileType(file.Filename),
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MimeType: s.getMimeType(file.Filename),
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FileExt: s.getFileExt(file.Filename),
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StorageType: "local",
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UploadIp: uploadIp,
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UploadedBy: uploadedBy,
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UsageCount: 0,
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CreatedAt: gtime.Now(),
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UpdatedAt: gtime.Now(),
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}
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id, err := dao.Attachment.Create(ctx, attachment)
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if err != nil {
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// 如果数据库保存失败，删除已上传的文件
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os.Remove(filePath)
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return nil, err
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}
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attachment.Id = int(id)
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return attachment, nil
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}
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// GetById 根据ID获取附件信息
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func (s *sAttachment) GetById(ctx context.Context, id int) (*model.Attachment, error) {
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return dao.Attachment.GetById(ctx, id)
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}
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// List 获取附件列表
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func (s *sAttachment) List(ctx context.Context, req *model.AttachmentListRequest) (*model.PageResponse, error) {
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var (
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page = req.Page
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pageSize = req.PageSize
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)
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if page <= 0 {
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page = 1
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}
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if pageSize <= 0 {
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pageSize = 20
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}
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// 设置分页参数
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req.Page = page
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req.PageSize = pageSize
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// 获取列表
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attachments, total, err := dao.Attachment.List(ctx, req)
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if err != nil {
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return nil, err
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}
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return &model.PageResponse{
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List: attachments,
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Total: total,
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Page: page,
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PageSize: pageSize,
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TotalPages: (total + pageSize - 1) / pageSize,
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}, nil
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}
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// Delete 删除附件
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func (s *sAttachment) Delete(ctx context.Context, id int) error {
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// 检查附件是否存在
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attachment, err := s.GetById(ctx, id)
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if err != nil {
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return err
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}
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if attachment == nil {
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return gerror.New("附件不存在")
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}
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// 删除物理文件
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if gfile.Exists(attachment.FilePath) {
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if err := os.Remove(attachment.FilePath); err != nil {
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g.Log().Error(ctx, "删除物理文件失败:", err)
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}
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}
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// 删除数据库记录
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return dao.Attachment.Delete(ctx, id)
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}
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// UpdateUsageCount 更新使用次数
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func (s *sAttachment) UpdateUsageCount(ctx context.Context, id int) error {
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return dao.Attachment.IncrementUsageCount(ctx, id)
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}
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// GetStats 获取附件统计信息
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func (s *sAttachment) GetStats(ctx context.Context) (map[string]interface{}, error) {
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// 获取总附件数
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totalCount, err := dao.Attachment.GetCount(ctx)
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if err != nil {
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return nil, err
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}
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// 获取总文件大小
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totalSize, err := dao.Attachment.GetTotalSize(ctx)
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if err != nil {
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return nil, err
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}
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// 获取各类型文件数量
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imageCount, err := dao.Attachment.GetCountByType(ctx, "image")
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if err != nil {
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return nil, err
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}
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documentCount, err := dao.Attachment.GetCountByType(ctx, "document")
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if err != nil {
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return nil, err
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}
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videoCount, err := dao.Attachment.GetCountByType(ctx, "video")
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if err != nil {
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return nil, err
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}
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return map[string]interface{}{
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"total_count": totalCount,
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"total_size": totalSize,
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"image_count": imageCount,
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"document_count": documentCount,
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"video_count": videoCount,
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}, nil
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}
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// isAllowedFileType 检查文件类型是否允许
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func (s *sAttachment) isAllowedFileType(filename string) bool {
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allowedExts := []string{
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".jpg", ".jpeg", ".png", ".gif", ".bmp", ".webp", // 图片
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".pdf", ".doc", ".docx", ".xls", ".xlsx", ".ppt", ".pptx", ".txt", // 文档
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".mp4", ".avi", ".mov", ".wmv", ".flv", ".mkv", // 视频
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".mp3", ".wav", ".flac", ".aac", // 音频
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".zip", ".rar", ".7z", ".tar", ".gz", // 压缩包
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}
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ext := strings.ToLower(filepath.Ext(filename))
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for _, allowedExt := range allowedExts {
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if ext == allowedExt {
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return true
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}
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}
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return false
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}
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// generateFilePath 生成文件路径
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func (s *sAttachment) generateFilePath(originalName, uploadType string) (string, string, string) {
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// 获取文件扩展名
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ext := filepath.Ext(originalName)
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// 生成唯一文件名
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hash := gmd5.MustEncrypt(fmt.Sprintf("%s_%d_%s", originalName, time.Now().UnixNano(), grand.S(8)))
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fileName := hash + ext
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// 根据日期创建目录结构
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now := time.Now()
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dateDir := fmt.Sprintf("%d/%02d/%02d", now.Year(), now.Month(), now.Day())
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// 根据上传类型创建子目录
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if uploadType == "" {
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uploadType = "general"
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}
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// 构建完整路径
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relativePath := fmt.Sprintf("uploads/%s/%s/%s", uploadType, dateDir, fileName)
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fullPath := filepath.Join("storage", relativePath)
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fileUrl := "/" + strings.ReplaceAll(relativePath, "\\", "/")
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return fileName, fullPath, fileUrl
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}
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// getFileType 获取文件类型
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func (s *sAttachment) getFileType(filename string) string {
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ext := strings.ToLower(filepath.Ext(filename))
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imageExts := []string{".jpg", ".jpeg", ".png", ".gif", ".bmp", ".webp"}
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documentExts := []string{".pdf", ".doc", ".docx", ".xls", ".xlsx", ".ppt", ".pptx", ".txt"}
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videoExts := []string{".mp4", ".avi", ".mov", ".wmv", ".flv", ".mkv"}
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audioExts := []string{".mp3", ".wav", ".flac", ".aac"}
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archiveExts := []string{".zip", ".rar", ".7z", ".tar", ".gz"}
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for _, imageExt := range imageExts {
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if ext == imageExt {
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return "image"
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}
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}
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for _, docExt := range documentExts {
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if ext == docExt {
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return "document"
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}
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}
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for _, videoExt := range videoExts {
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if ext == videoExt {
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return "video"
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}
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}
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for _, audioExt := range audioExts {
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if ext == audioExt {
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return "audio"
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}
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}
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for _, archiveExt := range archiveExts {
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if ext == archiveExt {
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return "archive"
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}
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}
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return "other"
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}
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// getMimeType 获取MIME类型
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func (s *sAttachment) getMimeType(filename string) string {
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ext := strings.ToLower(filepath.Ext(filename))
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mimeTypes := map[string]string{
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".jpg": "image/jpeg",
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".jpeg": "image/jpeg",
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".png": "image/png",
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".gif": "image/gif",
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".bmp": "image/bmp",
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".webp": "image/webp",
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".pdf": "application/pdf",
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".doc": "application/msword",
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".docx": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
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".xls": "application/vnd.ms-excel",
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".xlsx": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
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".ppt": "application/vnd.ms-powerpoint",
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".pptx": "application/vnd.openxmlformats-officedocument.presentationml.presentation",
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".txt": "text/plain",
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".mp4": "video/mp4",
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".avi": "video/x-msvideo",
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".mov": "video/quicktime",
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".wmv": "video/x-ms-wmv",
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".flv": "video/x-flv",
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".mkv": "video/x-matroska",
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".mp3": "audio/mpeg",
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".wav": "audio/wav",
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".flac": "audio/flac",
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".aac": "audio/aac",
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".zip": "application/zip",
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".rar": "application/x-rar-compressed",
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".7z": "application/x-7z-compressed",
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".tar": "application/x-tar",
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".gz": "application/gzip",
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}
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if mimeType, exists := mimeTypes[ext]; exists {
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return mimeType
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}
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return "application/octet-stream"
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}
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// getFileExt 获取文件扩展名
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func (s *sAttachment) getFileExt(filename string) string {
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ext := filepath.Ext(filename)
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if len(ext) > 0 {
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return ext[1:] // 去掉点号
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}
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return ""
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}
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// BatchDelete 批量删除附件
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func (s *sAttachment) BatchDelete(ctx context.Context, ids []int) error {
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for _, id := range ids {
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if err := s.Delete(ctx, id); err != nil {
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g.Log().Error(ctx, "批量删除附件失败, ID:", id, "错误:", err)
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// 继续删除其他文件，不中断整个过程
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}
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}
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return nil
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}
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// GetByIds 根据ID列表获取附件
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func (s *sAttachment) GetByIds(ctx context.Context, ids []int) ([]*model.Attachment, error) {
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return dao.Attachment.GetByIds(ctx, ids)
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}
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