cialloo
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123 lines
3.3 KiB
Go
123 lines
3.3 KiB
Go
package logic
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import (
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"context"
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"fmt"
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"path/filepath"
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"strings"
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"time"
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"git.cialloo.com/CiallooWeb/Blog/app/internal/svc"
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"git.cialloo.com/CiallooWeb/Blog/app/internal/types"
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"github.com/aws/aws-sdk-go-v2/service/s3"
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"github.com/zeromicro/go-zero/core/logx"
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)
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type UploadPresignedURLLogic struct {
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logx.Logger
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ctx context.Context
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svcCtx *svc.ServiceContext
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}
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// Get presigned URL for file upload
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func NewUploadPresignedURLLogic(ctx context.Context, svcCtx *svc.ServiceContext) *UploadPresignedURLLogic {
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return &UploadPresignedURLLogic{
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Logger: logx.WithContext(ctx),
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ctx: ctx,
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svcCtx: svcCtx,
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}
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}
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// getFileType categorizes file extensions into type folders
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func getFileType(ext string) string {
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ext = strings.ToLower(ext)
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imageExts := map[string]bool{
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".jpg": true, ".jpeg": true, ".png": true, ".gif": true, ".bmp": true,
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".webp": true, ".svg": true, ".ico": true, ".tiff": true, ".tif": true,
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}
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videoExts := map[string]bool{
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".mp4": true, ".avi": true, ".mov": true, ".wmv": true, ".flv": true,
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".mkv": true, ".webm": true, ".m4v": true, ".mpg": true, ".mpeg": true,
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}
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audioExts := map[string]bool{
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".mp3": true, ".wav": true, ".flac": true, ".aac": true, ".ogg": true,
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".wma": true, ".m4a": true, ".opus": true, ".ape": true,
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}
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archiveExts := map[string]bool{
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".zip": true, ".rar": true, ".7z": true, ".tar": true, ".gz": true,
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".bz2": true, ".xz": true, ".iso": true,
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}
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documentExts := map[string]bool{
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".pdf": true, ".doc": true, ".docx": true, ".xls": true, ".xlsx": true,
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".ppt": true, ".pptx": true, ".txt": true, ".rtf": true, ".odt": true,
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".ods": true, ".odp": true,
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}
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switch {
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case imageExts[ext]:
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return "images"
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case videoExts[ext]:
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return "videos"
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case audioExts[ext]:
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return "audios"
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case archiveExts[ext]:
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return "archives"
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case documentExts[ext]:
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return "documents"
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default:
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return "others"
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}
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}
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func (l *UploadPresignedURLLogic) UploadPresignedURL(req *types.UploadPresignedURLReq) (resp *types.UploadPresignedURLResp, err error) {
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// Generate unique file key
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ext := filepath.Ext(req.FileName)
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// Determine file type based on extension
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fileType := getFileType(ext)
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// Generate file key grouped by type: {type}/{time}{ext}
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fileKey := fmt.Sprintf("%s/%d%s", fileType, time.Now().UnixMilli(), ext)
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// Calculate expiration time
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expiration := time.Duration(l.svcCtx.Config.S3.PresignedURLExpiration) * time.Second
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expireAt := time.Now().Add(expiration)
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// Create presigned client
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presignClient := s3.NewPresignClient(l.svcCtx.S3Client)
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// Generate presigned PUT URL
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putObjectInput := &s3.PutObjectInput{
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Bucket: &l.svcCtx.Config.S3.Bucket,
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Key: &fileKey,
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}
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presignedReq, err := presignClient.PresignPutObject(l.ctx, putObjectInput, func(opts *s3.PresignOptions) {
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opts.Expires = expiration
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})
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if err != nil {
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l.Errorf("Failed to generate presigned URL: %v", err)
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return nil, err
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}
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// Insert record into tmpfiles table
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query := `INSERT INTO tmpfiles (file_name, key, presigned_url, expiration) VALUES ($1, $2, $3, $4)`
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_, err = l.svcCtx.DB.ExecContext(l.ctx, query, req.FileName, fileKey, presignedReq.URL, expireAt)
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if err != nil {
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l.Errorf("Failed to insert tmpfile record: %v", err)
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return nil, err
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}
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return &types.UploadPresignedURLResp{
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Url: presignedReq.URL,
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FileKey: fileKey,
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ExpireAt: expireAt.Unix(),
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}, nil
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}
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