eventmanager: add support for file/directory compression

Signed-off-by: Nicola Murino <nicola.murino@gmail.com>

internal/dataprovider/eventrule.go

@@ -48,9 +48,9 @@ const (
 )
 
 var (
-	supportedEventActions = []int{ActionTypeHTTP, ActionTypeCommand, ActionTypeEmail, ActionTypeBackup,
-		ActionTypeUserQuotaReset, ActionTypeFolderQuotaReset, ActionTypeTransferQuotaReset,
-		ActionTypeDataRetentionCheck, ActionTypeMetadataCheck, ActionTypeFilesystem}
+	supportedEventActions = []int{ActionTypeHTTP, ActionTypeCommand, ActionTypeEmail, ActionTypeFilesystem,
+		ActionTypeBackup, ActionTypeUserQuotaReset, ActionTypeFolderQuotaReset, ActionTypeTransferQuotaReset,
+		ActionTypeDataRetentionCheck, ActionTypeMetadataCheck}
 )
 
 func isActionTypeValid(action int) bool {
@@ -123,6 +123,7 @@ const (
 	FilesystemActionDelete
 	FilesystemActionMkdirs
 	FilesystemActionExist
+	FilesystemActionCompress
 )
 
 const (
@@ -132,7 +133,7 @@ const (
 
 var (
 	supportedFsActions = []int{FilesystemActionRename, FilesystemActionDelete, FilesystemActionMkdirs,
-		FilesystemActionExist}
+		FilesystemActionCompress, FilesystemActionExist}
 )
 
 func isFilesystemActionValid(value int) bool {
@@ -147,6 +148,8 @@ func getFsActionTypeAsString(value int) string {
 		return "Delete"
 	case FilesystemActionExist:
 		return "Paths exist"
+	case FilesystemActionCompress:
+		return "Compress"
 	default:
 		return "Create directories"
 	}
@@ -539,6 +542,36 @@ func (c *EventActionDataRetentionConfig) validate() error {
 	return nil
 }
 
+// EventActionFsCompress defines the configuration for the compress filesystem action
+type EventActionFsCompress struct {
+	// Archive path
+	Name string `json:"name,omitempty"`
+	// Paths to compress
+	Paths []string `json:"paths,omitempty"`
+}
+
+func (c *EventActionFsCompress) validate() error {
+	if c.Name == "" {
+		return util.NewValidationError("archive name is mandatory")
+	}
+	c.Name = util.CleanPath(strings.TrimSpace(c.Name))
+	if c.Name == "/" {
+		return util.NewValidationError("invalid archive name")
+	}
+	if len(c.Paths) == 0 {
+		return util.NewValidationError("no path to compress specified")
+	}
+	for idx, val := range c.Paths {
+		val = strings.TrimSpace(val)
+		if val == "" {
+			return util.NewValidationError("invalid path to compress")
+		}
+		c.Paths[idx] = util.CleanPath(val)
+	}
+	c.Paths = util.RemoveDuplicates(c.Paths, false)
+	return nil
+}
+
 // EventActionFilesystemConfig defines the configuration for filesystem actions
 type EventActionFilesystemConfig struct {
 	// Filesystem actions, see the above enum
@@ -551,6 +584,8 @@ type EventActionFilesystemConfig struct {
 	Deletes []string `json:"deletes,omitempty"`
 	// file/dirs to check for existence
 	Exist []string `json:"exist,omitempty"`
+	// paths to compress and archive name
+	Compress EventActionFsCompress `json:"compress"`
 }
 
 // GetDeletesAsString returns the list of items to delete as comma separated string.
@@ -571,6 +606,12 @@ func (c EventActionFilesystemConfig) GetExistAsString() string {
 	return strings.Join(c.Exist, ",")
 }
 
+// GetCompressPathsAsString returns the list of items to compress as comma separated string.
+// Using a pointer receiver will not work in web templates
+func (c EventActionFilesystemConfig) GetCompressPathsAsString() string {
+	return strings.Join(c.Compress.Paths, ",")
+}
+
 func (c *EventActionFilesystemConfig) validateRenames() error {
 	if len(c.Renames) == 0 {
 		return util.NewValidationError("no path to rename specified")
@@ -651,6 +692,7 @@ func (c *EventActionFilesystemConfig) validate() error {
 		c.MkDirs = nil
 		c.Deletes = nil
 		c.Exist = nil
+		c.Compress = EventActionFsCompress{}
 		if err := c.validateRenames(); err != nil {
 			return err
 		}
@@ -658,6 +700,7 @@ func (c *EventActionFilesystemConfig) validate() error {
 		c.Renames = nil
 		c.MkDirs = nil
 		c.Exist = nil
+		c.Compress = EventActionFsCompress{}
 		if err := c.validateDeletes(); err != nil {
 			return err
 		}
@@ -665,6 +708,7 @@ func (c *EventActionFilesystemConfig) validate() error {
 		c.Renames = nil
 		c.Deletes = nil
 		c.Exist = nil
+		c.Compress = EventActionFsCompress{}
 		if err := c.validateMkdirs(); err != nil {
 			return err
 		}
@@ -672,9 +716,18 @@ func (c *EventActionFilesystemConfig) validate() error {
 		c.Renames = nil
 		c.Deletes = nil
 		c.MkDirs = nil
+		c.Compress = EventActionFsCompress{}
 		if err := c.validateExist(); err != nil {
 			return err
 		}
+	case FilesystemActionCompress:
+		c.Renames = nil
+		c.MkDirs = nil
+		c.Deletes = nil
+		c.Exist = nil
+		if err := c.Compress.validate(); err != nil {
+			return err
+		}
 	}
 	return nil
 }
@@ -686,6 +739,8 @@ func (c *EventActionFilesystemConfig) getACopy() EventActionFilesystemConfig {
 	copy(deletes, c.Deletes)
 	exist := make([]string, len(c.Exist))
 	copy(exist, c.Exist)
+	compressPaths := make([]string, len(c.Compress.Paths))
+	copy(compressPaths, c.Compress.Paths)
 
 	return EventActionFilesystemConfig{
 		Type:    c.Type,
@@ -693,6 +748,10 @@ func (c *EventActionFilesystemConfig) getACopy() EventActionFilesystemConfig {
 		MkDirs:  mkdirs,
 		Deletes: deletes,
 		Exist:   exist,
+		Compress: EventActionFsCompress{
+			Paths: compressPaths,
+			Name:  c.Compress.Name,
+		},
 	}
 }