feat: v2 (#599)

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

storage/bolt/auth.go

@@ -0,0 +1,33 @@
+package bolt
+
+import (
+	"github.com/asdine/storm"
+	"github.com/filebrowser/filebrowser/v2/auth"
+	"github.com/filebrowser/filebrowser/v2/errors"
+	"github.com/filebrowser/filebrowser/v2/settings"
+)
+
+type authBackend struct {
+	db *storm.DB
+}
+
+func (s authBackend) Get(t settings.AuthMethod) (auth.Auther, error) {
+	var auther auth.Auther
+
+	switch t {
+	case auth.MethodJSONAuth:
+		auther = &auth.JSONAuth{}
+	case auth.MethodProxyAuth:
+		auther = &auth.ProxyAuth{}
+	case auth.MethodNoAuth:
+		auther = &auth.NoAuth{}
+	default:
+		return nil, errors.ErrInvalidAuthMethod
+	}
+
+	return auther, get(s.db, "auther", auther)
+}
+
+func (s authBackend) Save(a auth.Auther) error {
+	return save(s.db, "auther", a)
+}