Add rights methods for saved filters

pkg/models/saved_filters_rights.go

@@ -0,0 +1,61 @@
+// Vikunja is a to-do list application to facilitate your life.
+// Copyright 2018-2020 Vikunja and contributors. All rights reserved.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package models
+
+import "code.vikunja.io/web"
+
+func (s *SavedFilter) CanRead(auth web.Auth) (bool, int, error) {
+	can, err := s.canDoFilter(auth)
+	return can, int(RightAdmin), err
+}
+
+func (s *SavedFilter) CanDelete(auth web.Auth) (bool, error) {
+	return s.canDoFilter(auth)
+}
+
+func (s *SavedFilter) CanUpdate(auth web.Auth) (bool, error) {
+	return s.canDoFilter(auth)
+}
+
+func (s *SavedFilter) CanCreate(auth web.Auth) (bool, error) {
+	if _, is := auth.(*LinkSharing); is {
+		return false, nil
+	}
+
+	return true, nil
+}
+
+func (s *SavedFilter) canDoFilter(auth web.Auth) (can bool, err error) {
+	// Link shares can't view or modify saved filters, therefore we can error out right away
+	if _, is := auth.(*LinkSharing); is {
+		return false, nil
+	}
+
+	sf, err := getSavedFilterSimpleByID(s.ID)
+	if err != nil {
+		return false, err
+	}
+
+	// Only owners are allowed to do something with a saved filter
+	if sf.OwnerID != auth.GetID() {
+		return false, nil
+	}
+
+	*s = *sf
+
+	return true, nil
+}