631 lines
17 KiB
Go
631 lines
17 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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"errors"
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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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"github.com/jackc/pgconn"
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"go.ipao.vip/gen/types"
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"gorm.io/gorm"
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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, tenantID, userID int64, hash string) (*common_dto.UploadResult, error) {
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// 优先使用路径租户，避免跨租户写入。
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tenant, err := s.resolveTenant(ctx, tenantID, userID)
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if err != nil {
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return nil, err
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}
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var tid int64
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if tenant != nil {
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tid = tenant.ID
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}
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query := models.MediaAssetQuery.WithContext(ctx).Where(models.MediaAssetQuery.Hash.Eq(hash))
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if tid > 0 {
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query = query.Where(models.MediaAssetQuery.TenantID.Eq(tid))
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}
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existing, err := query.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 (deduplication hit)
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// Check if user already has it (Logic deduplication hit)
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myQuery := models.MediaAssetQuery.WithContext(ctx).
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Where(models.MediaAssetQuery.Hash.Eq(hash), models.MediaAssetQuery.UserID.Eq(userID))
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if tid > 0 {
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myQuery = myQuery.Where(models.MediaAssetQuery.TenantID.Eq(tid))
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}
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myExisting, err := myQuery.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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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 原始文件名，用于生成对象路径。
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Filename string `json:"filename"`
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// Type 业务媒体类型（video/audio/image 等）。
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Type string `json:"type"`
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// MimeType 上传文件的 MIME 类型。
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MimeType string `json:"mime_type"`
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// TenantID 上传所属租户ID，用于归属校验。
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TenantID int64 `json:"tenant_id"`
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// UserID 上传发起用户ID，用于归属校验。
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UserID int64 `json:"user_id"`
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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) loadUploadMeta(tempDir string) (*UploadMeta, error) {
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metaFile, err := os.Open(filepath.Join(tempDir, "meta.json"))
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if err != nil {
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if errors.Is(err, os.ErrNotExist) {
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return nil, errorx.ErrRecordNotFound.WithCause(err).WithMsg("上传会话不存在")
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}
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return nil, errorx.ErrInternalError.WithCause(err)
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}
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defer metaFile.Close()
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var meta UploadMeta
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if err := json.NewDecoder(metaFile).Decode(&meta); err != nil {
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return nil, errorx.ErrDataCorrupted.WithCause(err).WithMsg("上传会话元信息损坏")
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}
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return &meta, nil
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}
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func (s *common) verifyUploadOwner(meta *UploadMeta, tenantID, userID int64) error {
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// 校验上传会话归属，避免同租户猜测 upload_id 进行越权操作。
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if meta.TenantID != tenantID || meta.UserID != userID {
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return errorx.ErrForbidden.WithMsg("无权访问该上传会话")
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}
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return nil
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}
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func (s *common) resolveTenant(ctx context.Context, tenantID, userID int64) (*models.Tenant, error) {
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if tenantID > 0 {
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tbl, q := models.TenantQuery.QueryContext(ctx)
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tenant, err := q.Where(tbl.ID.Eq(tenantID)).First()
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if err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return nil, errorx.ErrRecordNotFound.WithMsg("租户不存在")
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}
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return nil, errorx.ErrDatabaseError.WithCause(err)
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}
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return tenant, nil
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}
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if userID == 0 {
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return nil, nil
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}
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tbl, q := models.TenantQuery.QueryContext(ctx)
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tenant, err := q.Where(tbl.UserID.Eq(userID)).First()
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if err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return nil, nil
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}
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return nil, errorx.ErrDatabaseError.WithCause(err)
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}
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return tenant, nil
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}
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func (s *common) uploadTempDir(localPath string, tenantID int64, uploadID string) string {
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tenantKey := "public"
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if tenantID > 0 {
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tenantKey = strconv.FormatInt(tenantID, 10)
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}
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return filepath.Join(localPath, "temp", tenantKey, uploadID)
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}
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func (s *common) InitUpload(ctx context.Context, tenantID, 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 := s.uploadTempDir(localPath, tenantID, 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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TenantID: tenantID,
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UserID: userID,
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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, tenantID, 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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tempDir := s.uploadTempDir(localPath, tenantID, form.UploadID)
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meta, err := s.loadUploadMeta(tempDir)
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if err != nil {
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return err
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}
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if err := s.verifyUploadOwner(meta, tenantID, userID); err != nil {
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return err
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}
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partPath := filepath.Join(tempDir, 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, tenantID, 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 := s.uploadTempDir(localPath, tenantID, form.UploadID)
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// 校验上传会话归属，避免同租户猜测 upload_id 进行越权操作。
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meta, err := s.loadUploadMeta(tempDir)
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if err != nil {
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return nil, err
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}
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if err := s.verifyUploadOwner(meta, tenantID, userID); err != nil {
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return nil, err
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}
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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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|
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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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|
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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 {
|
||
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))
|
||
dst.Close() // Ensure flush before potential removal
|
||
|
||
// Deduplication Logic (Similar to Upload)
|
||
tenant, err := s.resolveTenant(ctx, tenantID, userID)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
var tid int64
|
||
if tenant != nil {
|
||
tid = tenant.ID
|
||
}
|
||
|
||
objectKey := s.buildObjectKey(tenant, hash, meta.Filename)
|
||
existingQuery := models.MediaAssetQuery.WithContext(ctx).Where(models.MediaAssetQuery.Hash.Eq(hash))
|
||
if tid > 0 {
|
||
existingQuery = existingQuery.Where(models.MediaAssetQuery.TenantID.Eq(tid))
|
||
}
|
||
existing, err := existingQuery.First()
|
||
var asset *models.MediaAsset
|
||
|
||
if err == nil {
|
||
os.Remove(mergedPath) // Delete duplicate
|
||
myQuery := models.MediaAssetQuery.WithContext(ctx).
|
||
Where(models.MediaAssetQuery.Hash.Eq(hash), models.MediaAssetQuery.UserID.Eq(userID))
|
||
if tid > 0 {
|
||
myQuery = myQuery.Where(models.MediaAssetQuery.TenantID.Eq(tid))
|
||
}
|
||
myExisting, err := myQuery.First()
|
||
if err == nil {
|
||
os.RemoveAll(tempDir)
|
||
return s.composeUploadResult(myExisting), nil
|
||
}
|
||
asset = &models.MediaAsset{
|
||
TenantID: tid,
|
||
UserID: userID,
|
||
Type: consts.MediaAssetType(meta.Type),
|
||
Status: consts.MediaAssetStatusUploaded,
|
||
Provider: existing.Provider,
|
||
Bucket: existing.Bucket,
|
||
ObjectKey: existing.ObjectKey,
|
||
Hash: hash,
|
||
Meta: existing.Meta,
|
||
}
|
||
} else {
|
||
finalPath := filepath.Join(localPath, objectKey)
|
||
if err := os.MkdirAll(filepath.Dir(finalPath), 0o755); err != nil {
|
||
return nil, errorx.ErrInternalError.WithCause(err)
|
||
}
|
||
if err := os.Rename(mergedPath, finalPath); err != nil {
|
||
return nil, errorx.ErrInternalError.WithCause(err)
|
||
}
|
||
asset = &models.MediaAsset{
|
||
TenantID: tid,
|
||
UserID: userID,
|
||
Type: consts.MediaAssetType(meta.Type),
|
||
Status: consts.MediaAssetStatusUploaded,
|
||
Provider: "local",
|
||
Bucket: "default",
|
||
ObjectKey: objectKey,
|
||
Hash: hash,
|
||
Meta: types.NewJSONType(fields.MediaAssetMeta{
|
||
Filename: meta.Filename,
|
||
Size: totalSize,
|
||
}),
|
||
}
|
||
}
|
||
|
||
os.RemoveAll(tempDir)
|
||
if err := models.MediaAssetQuery.WithContext(ctx).Create(asset); err != nil {
|
||
return nil, errorx.ErrDatabaseError.WithCause(err)
|
||
}
|
||
|
||
return s.composeUploadResult(asset), nil
|
||
}
|
||
|
||
func (s *common) DeleteMediaAsset(ctx context.Context, tenantID, userID, id int64) error {
|
||
query := models.MediaAssetQuery.WithContext(ctx).
|
||
Where(models.MediaAssetQuery.ID.Eq(id), models.MediaAssetQuery.UserID.Eq(userID))
|
||
if tenantID > 0 {
|
||
query = query.Where(models.MediaAssetQuery.TenantID.Eq(tenantID))
|
||
}
|
||
asset, err := query.First()
|
||
if err != nil {
|
||
return errorx.ErrRecordNotFound
|
||
}
|
||
|
||
// Delete DB record
|
||
if _, err := models.MediaAssetQuery.WithContext(ctx).Where(models.MediaAssetQuery.ID.Eq(id)).Delete(); err != nil {
|
||
return errorx.ErrDatabaseError.WithCause(err)
|
||
}
|
||
|
||
// Check ref count
|
||
count, _ := models.MediaAssetQuery.WithContext(ctx).
|
||
Where(models.MediaAssetQuery.ObjectKey.Eq(asset.ObjectKey)).
|
||
Count()
|
||
|
||
if count == 0 {
|
||
// Physical delete
|
||
_ = s.storage.Delete(asset.ObjectKey)
|
||
}
|
||
|
||
return nil
|
||
}
|
||
|
||
func (s *common) AbortUpload(ctx context.Context, tenantID, userID int64, uploadId string) error {
|
||
localPath := s.storage.Config.LocalPath
|
||
if localPath == "" {
|
||
localPath = "./storage"
|
||
}
|
||
tempDir := s.uploadTempDir(localPath, tenantID, uploadId)
|
||
meta, err := s.loadUploadMeta(tempDir)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
if err := s.verifyUploadOwner(meta, tenantID, userID); err != nil {
|
||
return err
|
||
}
|
||
return os.RemoveAll(tempDir)
|
||
}
|
||
|
||
func (s *common) Upload(
|
||
ctx context.Context,
|
||
tenantID int64,
|
||
userID int64,
|
||
file *multipart.FileHeader,
|
||
typeArg string,
|
||
) (*common_dto.UploadResult, error) {
|
||
// But this Upload endpoint accepts file. So we save it.
|
||
|
||
// Save file content to local storage
|
||
src, err := file.Open()
|
||
if err != nil {
|
||
return nil, errorx.ErrInternalError.WithCause(err).WithMsg("failed to open uploaded file")
|
||
}
|
||
defer src.Close()
|
||
|
||
localPath := s.storage.Config.LocalPath
|
||
if localPath == "" {
|
||
localPath = "./storage" // Fallback
|
||
}
|
||
tmpDir := filepath.Join(localPath, "temp", "uploads", uuid.NewString())
|
||
if err := os.MkdirAll(tmpDir, 0o755); err != nil {
|
||
return nil, errorx.ErrInternalError.WithCause(err).WithMsg("failed to create storage directory")
|
||
}
|
||
tmpPath := filepath.Join(tmpDir, "file")
|
||
|
||
dst, err := os.Create(tmpPath)
|
||
if err != nil {
|
||
return nil, errorx.ErrInternalError.WithCause(err).WithMsg("failed to create destination file")
|
||
}
|
||
|
||
// Hash calculation while copying
|
||
hasher := md5.New()
|
||
size, err := io.Copy(io.MultiWriter(dst, hasher), src)
|
||
dst.Close() // Close immediately to allow removal if needed
|
||
if err != nil {
|
||
return nil, errorx.ErrInternalError.WithCause(err).WithMsg("failed to save file content")
|
||
}
|
||
|
||
hash := hex.EncodeToString(hasher.Sum(nil))
|
||
|
||
tenant, err := s.resolveTenant(ctx, tenantID, userID)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
var tid int64
|
||
if tenant != nil {
|
||
tid = tenant.ID
|
||
}
|
||
|
||
objectKey := s.buildObjectKey(tenant, hash, file.Filename)
|
||
var asset *models.MediaAsset
|
||
|
||
// Deduplication Check
|
||
existingQuery := models.MediaAssetQuery.WithContext(ctx).Where(models.MediaAssetQuery.Hash.Eq(hash))
|
||
if tid > 0 {
|
||
existingQuery = existingQuery.Where(models.MediaAssetQuery.TenantID.Eq(tid))
|
||
}
|
||
existing, err := existingQuery.First()
|
||
if err == nil {
|
||
// Found existing file (Storage Deduplication)
|
||
os.Remove(tmpPath) // Delete the duplicate we just wrote
|
||
os.RemoveAll(tmpDir)
|
||
|
||
// Check if user already has it (Logic Deduplication)
|
||
myQuery := models.MediaAssetQuery.WithContext(ctx).
|
||
Where(models.MediaAssetQuery.Hash.Eq(hash), models.MediaAssetQuery.UserID.Eq(userID))
|
||
if tid > 0 {
|
||
myQuery = myQuery.Where(models.MediaAssetQuery.TenantID.Eq(tid))
|
||
}
|
||
myExisting, err := myQuery.First()
|
||
if err == nil {
|
||
return s.composeUploadResult(myExisting), nil
|
||
}
|
||
|
||
// Create new link for user reusing existing ObjectKey
|
||
asset = &models.MediaAsset{
|
||
TenantID: tid,
|
||
UserID: userID,
|
||
Type: consts.MediaAssetType(typeArg),
|
||
Status: consts.MediaAssetStatusUploaded,
|
||
Provider: existing.Provider,
|
||
Bucket: existing.Bucket,
|
||
ObjectKey: existing.ObjectKey, // Reuse key
|
||
Hash: hash,
|
||
Meta: existing.Meta,
|
||
}
|
||
} else {
|
||
dstPath := filepath.Join(localPath, objectKey)
|
||
if err := os.MkdirAll(filepath.Dir(dstPath), 0o755); err != nil {
|
||
return nil, errorx.ErrInternalError.WithCause(err).WithMsg("failed to create storage directory")
|
||
}
|
||
if err := os.Rename(tmpPath, dstPath); err != nil {
|
||
return nil, errorx.ErrInternalError.WithCause(err).WithMsg("failed to finalize file")
|
||
}
|
||
os.RemoveAll(tmpDir)
|
||
|
||
// New unique file
|
||
asset = &models.MediaAsset{
|
||
TenantID: tid,
|
||
UserID: userID,
|
||
Type: consts.MediaAssetType(typeArg),
|
||
Status: consts.MediaAssetStatusUploaded,
|
||
Provider: "local",
|
||
Bucket: "default",
|
||
ObjectKey: objectKey,
|
||
Hash: hash,
|
||
Meta: types.NewJSONType(fields.MediaAssetMeta{
|
||
Filename: file.Filename,
|
||
Size: size,
|
||
}),
|
||
}
|
||
}
|
||
|
||
if err := models.MediaAssetQuery.WithContext(ctx).Create(asset); err != nil {
|
||
return nil, errorx.ErrDatabaseError.WithCause(err)
|
||
}
|
||
|
||
return s.composeUploadResult(asset), nil
|
||
}
|
||
|
||
func (s *common) composeUploadResult(asset *models.MediaAsset) *common_dto.UploadResult {
|
||
url := s.GetAssetURL(asset.ObjectKey)
|
||
filename := asset.Meta.Data().Filename
|
||
if filename == "" {
|
||
filename = filepath.Base(asset.ObjectKey)
|
||
// Try to strip UUID prefix (36 chars + 1 underscore = 37)
|
||
if len(filename) > 37 && filename[36] == '_' {
|
||
filename = filename[37:]
|
||
}
|
||
}
|
||
size := asset.Meta.Data().Size
|
||
|
||
return &common_dto.UploadResult{
|
||
ID: asset.ID,
|
||
URL: url,
|
||
Filename: filename,
|
||
Size: size,
|
||
MimeType: "application/octet-stream", // TODO: Store mime type in DB
|
||
}
|
||
}
|
||
|
||
func (s *common) GetAssetURL(objectKey string) string {
|
||
if objectKey == "" {
|
||
return ""
|
||
}
|
||
url, _ := s.storage.SignURL("GET", objectKey, 1*time.Hour)
|
||
return url
|
||
}
|
||
|
||
func retryCriticalWrite(ctx context.Context, fn func() error) error {
|
||
backoffs := []time.Duration{
|
||
50 * time.Millisecond,
|
||
120 * time.Millisecond,
|
||
250 * time.Millisecond,
|
||
}
|
||
var lastErr error
|
||
|
||
for attempt := 0; attempt <= len(backoffs); attempt++ {
|
||
if err := fn(); err != nil {
|
||
if !shouldRetryWrite(err) {
|
||
return err
|
||
}
|
||
lastErr = err
|
||
if attempt >= len(backoffs) {
|
||
return err
|
||
}
|
||
// 事务冲突/死锁等短暂错误，等待后重试。
|
||
if ctx != nil {
|
||
select {
|
||
case <-ctx.Done():
|
||
return errorx.ErrServiceTimeout.WithCause(ctx.Err())
|
||
case <-time.After(backoffs[attempt]):
|
||
}
|
||
} else {
|
||
time.Sleep(backoffs[attempt])
|
||
}
|
||
continue
|
||
}
|
||
return nil
|
||
}
|
||
|
||
return lastErr
|
||
}
|
||
|
||
func shouldRetryWrite(err error) bool {
|
||
var appErr *errorx.AppError
|
||
if errors.As(err, &appErr) {
|
||
return false
|
||
}
|
||
return isTransientDBError(err)
|
||
}
|
||
|
||
func isTransientDBError(err error) bool {
|
||
var pgErr *pgconn.PgError
|
||
if errors.As(err, &pgErr) {
|
||
switch pgErr.Code {
|
||
case "40001", "40P01":
|
||
return true
|
||
}
|
||
}
|
||
return false
|
||
}
|