allow patching thumb ; remove Reset Thumbnail API

pkg/filemanager/manager/metadata.go

@@ -97,6 +97,15 @@ var (
 			},
 		},
 		"dav": {},
+		// Allow manipulating thumbnail metadata via public PatchMetadata API
+		"thumb": {
+			// Only supported thumb metadata currently is thumb:disabled
+			dbfs.ThumbDisabledKey: func(ctx context.Context, m *manager, patch *fs.MetadataPatch) error {
+				// Presence of this key disables thumbnails; value is ignored.
+				// We allow both setting and removing this key.
+				return nil
+			},
+		},
 		customizeMetadataSuffix: {
 			iconColorMetadataKey: validateColor(false),
 			emojiIconMetadataKey: func(ctx context.Context, m *manager, patch *fs.MetadataPatch) error {

routers/controllers/file.go

@@ -412,27 +412,3 @@ func PatchView(c *gin.Context) {
 
 	c.JSON(200, serializer.Response{})
 }
-
-// ResetThumb resets thumbnail generation for files
-func ResetThumb(c *gin.Context) {
-    service := ParametersFromContext[*explorer.ResetThumbService](c, explorer.ResetThumbParamCtx{})
-    resp, err := service.Reset(c)
-    if err != nil {
-        c.JSON(200, serializer.Err(c, err))
-        c.Abort()
-        return
-    }
-
-    if resp != nil && len(resp.Errors) > 0 {
-        // Return error response with detailed errors
-        c.JSON(200, serializer.Response{
-            Code: -1,
-            Msg:  "Reset thumbnail error",
-            Data: resp,
-        })
-        return
-    }
-
-    c.JSON(200, serializer.Response{Data: resp})
-}
-

routers/router.go

@@ -620,12 +620,7 @@ func initMasterRouter(dep dependency.Dep) *gin.Engine {
 				controllers.FromQuery[explorer.FileThumbService](explorer.FileThumbParameterCtx{}),
 				controllers.Thumb,
 			)
-			// reset thumb
+			// reset thumb removed; use metadata patch to re-enable thumbnails
-			file.POST("thumb/reset",
-				controllers.FromJSON[explorer.ResetThumbService](explorer.ResetThumbParamCtx{}),
-				middleware.ValidateBatchFileCount(dep, explorer.ResetThumbParamCtx{}),
-				controllers.ResetThumb,
-			)
 			// Delete files
 			file.DELETE("",
 				controllers.FromJSON[explorer.DeleteFileService](explorer.DeleteFileParameterCtx{}),

service/explorer/thumb.go

@@ -1,114 +0,0 @@
-package explorer
-
-import (
-    "context"
-    "errors"
-    "fmt"
-
-    "github.com/cloudreve/Cloudreve/v4/application/dependency"
-    "github.com/cloudreve/Cloudreve/v4/inventory"
-    "github.com/cloudreve/Cloudreve/v4/pkg/filemanager/fs"
-    "github.com/cloudreve/Cloudreve/v4/pkg/filemanager/fs/dbfs"
-    "github.com/cloudreve/Cloudreve/v4/pkg/filemanager/manager"
-    "github.com/cloudreve/Cloudreve/v4/pkg/serializer"
-    "github.com/cloudreve/Cloudreve/v4/pkg/thumb"
-)
-
-type (
-	// ResetThumbParamCtx defines context for ResetThumbService
-	ResetThumbParamCtx struct{}
-
-	// ResetThumbService handles resetting thumbnail generation for files
-	ResetThumbService struct {
-		Uris []string `json:"uris" binding:"required,min=1"`
-	}
-
-	// ResetThumbError represents an error for a specific URI
-	ResetThumbError struct {
-		URI    string `json:"uri"`
-		Reason string `json:"reason"`
-	}
-
-	// ResetThumbResponse represents the response for reset thumbnail operation
-	ResetThumbResponse struct {
-		Errors []ResetThumbError `json:"errors,omitempty"`
-	}
-)
-
-func (s *ResetThumbService) GetUris() []string {
-	return s.Uris
-}
-
-// Reset resets thumbnail generation for the specified files
-func (s *ResetThumbService) Reset(c context.Context) (*ResetThumbResponse, error) {
-    dep := dependency.FromContext(c)
-    user := inventory.UserFromContext(c)
-    m := manager.NewFileManager(dep, user)
-    defer m.Recycle()
-
-	uris, err := fs.NewUriFromStrings(s.Uris...)
-	if err != nil {
-		return nil, serializer.NewError(serializer.CodeParamErr, "unknown uri", err)
-	}
-
-    var errs []ResetThumbError
-
-    for _, uri := range uris {
-        // Get the file to check if it exists and get current metadata
-        file, err := m.Get(c, uri, dbfs.WithFilePublicMetadata())
-        if err != nil {
-            errs = append(errs, ResetThumbError{
-                URI:    uri.String(),
-                Reason: fmt.Sprintf("Reset thumbnail error: File does not exist"),
-            })
-            continue
-        }
-
-        // Check if thumb:disabled metadata exists
-        metadata := file.Metadata()
-        if _, exists := metadata[dbfs.ThumbDisabledKey]; exists {
-            // Remove the disabled mark directly via FileClient to bypass metadata validation
-            fileClient := dep.FileClient()
-            if dbfsFile, ok := file.(*dbfs.File); ok {
-                if err := fileClient.RemoveMetadata(c, dbfsFile.Model, dbfs.ThumbDisabledKey); err != nil {
-                    errs = append(errs, ResetThumbError{
-                        URI:    uri.String(),
-                        Reason: fmt.Sprintf("Reset thumbnail error: Failed to update metadata - %s", err.Error()),
-                    })
-                    continue
-                }
-            } else {
-                errs = append(errs, ResetThumbError{
-                    URI:    uri.String(),
-                    Reason: "Reset thumbnail error: Failed to access file model",
-                })
-                continue
-            }
-        }
-
-        // Trigger thumbnail regeneration by accessing the thumbnail
-        _, err = m.Thumbnail(c, uri)
-        if err != nil {
-            // Unsupported or not available
-            if errors.Is(err, thumb.ErrNotAvailable) || errors.Is(err, fs.ErrEntityNotExist) {
-                errs = append(errs, ResetThumbError{
-                    URI:    uri.String(),
-                    Reason: "Reset thumbnail error: File does not support thumbnail generation",
-                })
-            } else {
-                errs = append(errs, ResetThumbError{
-                    URI:    uri.String(),
-                    Reason: fmt.Sprintf("Reset thumbnail error: Failed to generate thumbnail - %s", err.Error()),
-                })
-            }
-        }
-    }
-
-    if len(errs) > 0 {
-        return &ResetThumbResponse{Errors: errs}, nil
-    }
-
-	return &ResetThumbResponse{}, nil
-}
-
-// (Thumb ext list API removed; use site config section "thumb")