feat: v2 (#599)

Read https://github.com/filebrowser/filebrowser/pull/575.

settings/storage.go

@@ -0,0 +1,88 @@
+package settings
+
+import (
+	"strings"
+
+	"github.com/filebrowser/filebrowser/v2/errors"
+	"github.com/filebrowser/filebrowser/v2/rules"
+	"github.com/filebrowser/filebrowser/v2/users"
+)
+
+// StorageBackend is a settings storage backend.
+type StorageBackend interface {
+	Get() (*Settings, error)
+	Save(*Settings) error
+}
+
+// Storage is a settings storage.
+type Storage struct {
+	back StorageBackend
+}
+
+// NewStorage creates a settings storage from a backend.
+func NewStorage(back StorageBackend) *Storage {
+	return &Storage{back: back}
+}
+
+// Get returns the settings for the current instance.
+func (s *Storage) Get() (*Settings, error) {
+	return s.back.Get()
+}
+
+var defaultEvents = []string{
+	"save",
+	"copy",
+	"rename",
+	"upload",
+	"delete",
+}
+
+// Save saves the settings for the current instance.
+func (s *Storage) Save(set *Settings) error {
+	set.BaseURL = strings.TrimSuffix(set.BaseURL, "/")
+
+	if len(set.Key) == 0 {
+		return errors.ErrEmptyKey
+	}
+
+	if set.Defaults.Locale == "" {
+		set.Defaults.Locale = "en"
+	}
+
+	if set.Defaults.Commands == nil {
+		set.Defaults.Commands = []string{}
+	}
+
+	if set.Defaults.ViewMode == "" {
+		set.Defaults.ViewMode = users.MosaicViewMode
+	}
+
+	if set.Rules == nil {
+		set.Rules = []rules.Rule{}
+	}
+
+	if set.Shell == nil {
+		set.Shell = []string{}
+	}
+
+	if set.Commands == nil {
+		set.Commands = map[string][]string{}
+	}
+
+	for _, event := range defaultEvents {
+		if _, ok := set.Commands["before_"+event]; !ok {
+			set.Commands["before_"+event] = []string{}
+		}
+
+		if _, ok := set.Commands["after_"+event]; !ok {
+			set.Commands["after_"+event] = []string{}
+		}
+	}
+
+	err := s.back.Save(set)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}