456 lines
13 KiB
Go
456 lines
13 KiB
Go
package services
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import (
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"context"
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"crypto/md5"
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"encoding/hex"
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"encoding/json"
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"io"
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"mime/multipart"
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"os"
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"path"
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"path/filepath"
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"sort"
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"strconv"
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"strings"
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"time"
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"quyun/v2/app/errorx"
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common_dto "quyun/v2/app/http/v1/dto"
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"quyun/v2/app/requests"
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"quyun/v2/database/fields"
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"quyun/v2/database/models"
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"quyun/v2/pkg/consts"
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"quyun/v2/providers/storage"
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"github.com/google/uuid"
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"go.ipao.vip/gen/types"
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)
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// @provider
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type common struct {
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storage *storage.Storage
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}
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func (s *common) Options(ctx context.Context) (*common_dto.OptionsResponse, error) {
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return &common_dto.OptionsResponse{
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ContentStatus: consts.ContentStatusItems(),
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ContentGenre: []requests.KV{
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requests.NewKV("Jingju", "京剧"),
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requests.NewKV("Kunqu", "昆曲"),
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requests.NewKV("Yueju", "越剧"),
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requests.NewKV("Yuju", "豫剧"),
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requests.NewKV("Huangmeixi", "黄梅戏"),
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requests.NewKV("Pingju", "评剧"),
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requests.NewKV("Qinqiang", "秦腔"),
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},
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}, nil
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}
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func (s *common) CheckHash(ctx context.Context, userID int64, hash string) (*common_dto.UploadResult, error) {
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existing, err := models.MediaAssetQuery.WithContext(ctx).Where(models.MediaAssetQuery.Hash.Eq(hash)).First()
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if err != nil {
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return nil, nil // Not found, proceed to upload
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}
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// Found existing file (Global deduplication hit)
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// Check if user already has it (Logic deduplication hit)
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myExisting, err := models.MediaAssetQuery.WithContext(ctx).
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Where(models.MediaAssetQuery.Hash.Eq(hash), models.MediaAssetQuery.UserID.Eq(userID)).
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First()
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if err == nil {
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return s.composeUploadResult(myExisting), nil
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}
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// Create new record for this user reusing existing ObjectKey
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t, err := models.TenantQuery.WithContext(ctx).Where(models.TenantQuery.UserID.Eq(userID)).First()
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var tid int64 = 0
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if err == nil {
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tid = t.ID
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}
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asset := &models.MediaAsset{
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TenantID: tid,
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UserID: userID,
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Type: existing.Type,
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Status: consts.MediaAssetStatusUploaded,
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Provider: existing.Provider,
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Bucket: existing.Bucket,
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ObjectKey: existing.ObjectKey,
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Hash: hash,
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Meta: existing.Meta,
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}
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if err := models.MediaAssetQuery.WithContext(ctx).Create(asset); err != nil {
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return nil, errorx.ErrDatabaseError.WithCause(err)
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}
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return s.composeUploadResult(asset), nil
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}
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type UploadMeta struct {
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Filename string
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Type string
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MimeType string
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}
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func (s *common) buildObjectKey(tenant *models.Tenant, hash, filename string) string {
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// 按租户维度组织对象路径：quyun/<tenant_uuid>/<hash>.<ext>
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tenantUUID := "public"
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if tenant != nil && tenant.UUID.String() != "" {
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tenantUUID = tenant.UUID.String()
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}
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ext := strings.ToLower(filepath.Ext(filename))
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return path.Join("quyun", tenantUUID, hash+ext)
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}
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func (s *common) InitUpload(ctx context.Context, userID int64, form *common_dto.UploadInitForm) (*common_dto.UploadInitResponse, error) {
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uploadID := uuid.NewString()
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localPath := s.storage.Config.LocalPath
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if localPath == "" {
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localPath = "./storage"
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}
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tempDir := filepath.Join(localPath, "temp", uploadID)
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if err := os.MkdirAll(tempDir, 0o755); err != nil {
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return nil, errorx.ErrInternalError.WithCause(err)
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}
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// Save metadata
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meta := UploadMeta{
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Filename: form.Filename,
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Type: form.Type, // Ensure form has Type
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MimeType: form.MimeType,
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}
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metaFile, _ := os.Create(filepath.Join(tempDir, "meta.json"))
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json.NewEncoder(metaFile).Encode(meta)
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metaFile.Close()
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return &common_dto.UploadInitResponse{
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UploadID: uploadID,
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ChunkSize: 5 * 1024 * 1024,
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}, nil
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}
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func (s *common) UploadPart(ctx context.Context, userID int64, file *multipart.FileHeader, form *common_dto.UploadPartForm) error {
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localPath := s.storage.Config.LocalPath
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if localPath == "" {
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localPath = "./storage"
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}
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partPath := filepath.Join(localPath, "temp", form.UploadID, strconv.Itoa(form.PartNumber))
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src, err := file.Open()
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if err != nil {
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return errorx.ErrInternalError.WithCause(err)
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}
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defer src.Close()
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dst, err := os.Create(partPath)
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if err != nil {
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return errorx.ErrInternalError.WithCause(err)
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}
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defer dst.Close()
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if _, err = io.Copy(dst, src); err != nil {
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return errorx.ErrInternalError.WithCause(err)
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}
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return nil
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}
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func (s *common) CompleteUpload(ctx context.Context, userID int64, form *common_dto.UploadCompleteForm) (*common_dto.UploadResult, error) {
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localPath := s.storage.Config.LocalPath
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if localPath == "" {
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localPath = "./storage"
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}
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tempDir := filepath.Join(localPath, "temp", form.UploadID)
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// Read Meta
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var meta UploadMeta
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metaFile, err := os.Open(filepath.Join(tempDir, "meta.json"))
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if err != nil {
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return nil, errorx.ErrRecordNotFound.WithMsg("Upload session expired or invalid")
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}
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json.NewDecoder(metaFile).Decode(&meta)
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metaFile.Close()
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// List parts
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entries, err := os.ReadDir(tempDir)
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if err != nil {
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return nil, errorx.ErrInternalError.WithCause(err)
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}
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var parts []int
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for _, e := range entries {
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if !e.IsDir() && e.Name() != "meta.json" {
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if i, err := strconv.Atoi(e.Name()); err == nil {
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parts = append(parts, i)
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}
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}
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}
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sort.Ints(parts)
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mergedPath := filepath.Join(tempDir, "merged")
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dst, err := os.Create(mergedPath)
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if err != nil {
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return nil, errorx.ErrInternalError.WithCause(err)
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}
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defer dst.Close()
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hasher := md5.New()
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var totalSize int64
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for _, partNum := range parts {
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partPath := filepath.Join(tempDir, strconv.Itoa(partNum))
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src, err := os.Open(partPath)
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if err != nil {
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return nil, errorx.ErrInternalError.WithCause(err)
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}
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n, err := io.Copy(io.MultiWriter(dst, hasher), src)
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src.Close()
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if err != nil {
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return nil, errorx.ErrInternalError.WithCause(err)
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}
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totalSize += n
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}
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hash := hex.EncodeToString(hasher.Sum(nil))
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dst.Close() // Ensure flush before potential removal
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// Deduplication Logic (Similar to Upload)
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t, err := models.TenantQuery.WithContext(ctx).Where(models.TenantQuery.UserID.Eq(userID)).First()
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var tid int64 = 0
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if err == nil {
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tid = t.ID
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}
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objectKey := s.buildObjectKey(t, hash, meta.Filename)
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existing, err := models.MediaAssetQuery.WithContext(ctx).Where(models.MediaAssetQuery.Hash.Eq(hash)).First()
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var asset *models.MediaAsset
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if err == nil {
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os.Remove(mergedPath) // Delete duplicate
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myExisting, err := models.MediaAssetQuery.WithContext(ctx).
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Where(models.MediaAssetQuery.Hash.Eq(hash), models.MediaAssetQuery.UserID.Eq(userID)).
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First()
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if err == nil {
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os.RemoveAll(tempDir)
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return s.composeUploadResult(myExisting), nil
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}
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asset = &models.MediaAsset{
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TenantID: tid,
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UserID: userID,
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Type: consts.MediaAssetType(meta.Type),
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Status: consts.MediaAssetStatusUploaded,
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Provider: existing.Provider,
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Bucket: existing.Bucket,
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ObjectKey: existing.ObjectKey,
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Hash: hash,
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Meta: existing.Meta,
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}
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} else {
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finalPath := filepath.Join(localPath, objectKey)
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if err := os.MkdirAll(filepath.Dir(finalPath), 0o755); err != nil {
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return nil, errorx.ErrInternalError.WithCause(err)
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}
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if err := os.Rename(mergedPath, finalPath); err != nil {
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return nil, errorx.ErrInternalError.WithCause(err)
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}
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asset = &models.MediaAsset{
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TenantID: tid,
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UserID: userID,
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Type: consts.MediaAssetType(meta.Type),
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Status: consts.MediaAssetStatusUploaded,
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Provider: "local",
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Bucket: "default",
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ObjectKey: objectKey,
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Hash: hash,
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Meta: types.NewJSONType(fields.MediaAssetMeta{
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Filename: meta.Filename,
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Size: totalSize,
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}),
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}
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}
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os.RemoveAll(tempDir)
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if err := models.MediaAssetQuery.WithContext(ctx).Create(asset); err != nil {
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return nil, errorx.ErrDatabaseError.WithCause(err)
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}
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return s.composeUploadResult(asset), nil
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}
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func (s *common) DeleteMediaAsset(ctx context.Context, userID, id int64) error {
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asset, err := models.MediaAssetQuery.WithContext(ctx).
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Where(models.MediaAssetQuery.ID.Eq(id), models.MediaAssetQuery.UserID.Eq(userID)).
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First()
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if err != nil {
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return errorx.ErrRecordNotFound
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}
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// Delete DB record
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if _, err := models.MediaAssetQuery.WithContext(ctx).Where(models.MediaAssetQuery.ID.Eq(id)).Delete(); err != nil {
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return errorx.ErrDatabaseError.WithCause(err)
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}
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// Check ref count
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count, _ := models.MediaAssetQuery.WithContext(ctx).
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Where(models.MediaAssetQuery.ObjectKey.Eq(asset.ObjectKey)).
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Count()
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if count == 0 {
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// Physical delete
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_ = s.storage.Delete(asset.ObjectKey)
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}
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return nil
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}
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func (s *common) AbortUpload(ctx context.Context, userID int64, uploadId string) error {
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localPath := s.storage.Config.LocalPath
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if localPath == "" {
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localPath = "./storage"
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}
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tempDir := filepath.Join(localPath, "temp", uploadId)
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return os.RemoveAll(tempDir)
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}
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func (s *common) Upload(
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ctx context.Context,
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userID int64,
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file *multipart.FileHeader,
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typeArg string,
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) (*common_dto.UploadResult, error) {
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// But this Upload endpoint accepts file. So we save it.
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// Save file content to local storage
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src, err := file.Open()
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if err != nil {
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return nil, errorx.ErrInternalError.WithCause(err).WithMsg("failed to open uploaded file")
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}
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defer src.Close()
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localPath := s.storage.Config.LocalPath
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if localPath == "" {
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localPath = "./storage" // Fallback
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}
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tmpDir := filepath.Join(localPath, "temp", "uploads", uuid.NewString())
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if err := os.MkdirAll(tmpDir, 0o755); err != nil {
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return nil, errorx.ErrInternalError.WithCause(err).WithMsg("failed to create storage directory")
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}
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tmpPath := filepath.Join(tmpDir, "file")
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dst, err := os.Create(tmpPath)
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if err != nil {
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return nil, errorx.ErrInternalError.WithCause(err).WithMsg("failed to create destination file")
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}
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// Hash calculation while copying
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hasher := md5.New()
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size, err := io.Copy(io.MultiWriter(dst, hasher), src)
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dst.Close() // Close immediately to allow removal if needed
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if err != nil {
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return nil, errorx.ErrInternalError.WithCause(err).WithMsg("failed to save file content")
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}
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hash := hex.EncodeToString(hasher.Sum(nil))
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t, err := models.TenantQuery.WithContext(ctx).Where(models.TenantQuery.UserID.Eq(userID)).First()
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var tid int64 = 0
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if err == nil {
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tid = t.ID
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}
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objectKey := s.buildObjectKey(t, hash, file.Filename)
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var asset *models.MediaAsset
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// Deduplication Check
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existing, err := models.MediaAssetQuery.WithContext(ctx).Where(models.MediaAssetQuery.Hash.Eq(hash)).First()
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if err == nil {
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// Found existing file (Storage Deduplication)
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os.Remove(tmpPath) // Delete the duplicate we just wrote
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os.RemoveAll(tmpDir)
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// Check if user already has it (Logic Deduplication)
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myExisting, err := models.MediaAssetQuery.WithContext(ctx).
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Where(models.MediaAssetQuery.Hash.Eq(hash), models.MediaAssetQuery.UserID.Eq(userID)).
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First()
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if err == nil {
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return s.composeUploadResult(myExisting), nil
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}
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// Create new link for user reusing existing ObjectKey
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asset = &models.MediaAsset{
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TenantID: tid,
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UserID: userID,
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Type: consts.MediaAssetType(typeArg),
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Status: consts.MediaAssetStatusUploaded,
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Provider: existing.Provider,
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Bucket: existing.Bucket,
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ObjectKey: existing.ObjectKey, // Reuse key
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Hash: hash,
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Meta: existing.Meta,
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}
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} else {
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dstPath := filepath.Join(localPath, objectKey)
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if err := os.MkdirAll(filepath.Dir(dstPath), 0o755); err != nil {
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return nil, errorx.ErrInternalError.WithCause(err).WithMsg("failed to create storage directory")
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}
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if err := os.Rename(tmpPath, dstPath); err != nil {
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return nil, errorx.ErrInternalError.WithCause(err).WithMsg("failed to finalize file")
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}
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os.RemoveAll(tmpDir)
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// New unique file
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asset = &models.MediaAsset{
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TenantID: tid,
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UserID: userID,
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Type: consts.MediaAssetType(typeArg),
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Status: consts.MediaAssetStatusUploaded,
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Provider: "local",
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Bucket: "default",
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ObjectKey: objectKey,
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Hash: hash,
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Meta: types.NewJSONType(fields.MediaAssetMeta{
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Filename: file.Filename,
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Size: size,
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}),
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}
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}
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if err := models.MediaAssetQuery.WithContext(ctx).Create(asset); err != nil {
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return nil, errorx.ErrDatabaseError.WithCause(err)
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}
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return s.composeUploadResult(asset), nil
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}
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func (s *common) composeUploadResult(asset *models.MediaAsset) *common_dto.UploadResult {
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url := s.GetAssetURL(asset.ObjectKey)
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filename := asset.Meta.Data().Filename
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if filename == "" {
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filename = filepath.Base(asset.ObjectKey)
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// Try to strip UUID prefix (36 chars + 1 underscore = 37)
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if len(filename) > 37 && filename[36] == '_' {
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filename = filename[37:]
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}
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}
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size := asset.Meta.Data().Size
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return &common_dto.UploadResult{
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ID: asset.ID,
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URL: url,
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Filename: filename,
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Size: size,
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MimeType: "application/octet-stream", // TODO: Store mime type in DB
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}
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}
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func (s *common) GetAssetURL(objectKey string) string {
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if objectKey == "" {
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return ""
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}
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url, _ := s.storage.SignURL("GET", objectKey, 1*time.Hour)
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return url
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}
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