// Vikunja is a todo-list application to facilitate your life. // Copyright 2018 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 . package models import ( "code.vikunja.io/api/pkg/log" ) // IsAdmin returns whether the user has admin rights on the list or not func (l *List) IsAdmin(u *User) bool { // Owners are always admins if l.Owner.ID == u.ID { return true } // Check individual rights if l.checkListUserRight(u, UserRightAdmin) { return true } return l.checkListTeamRight(u, TeamRightAdmin) } // CanWrite return whether the user can write on that list or not func (l *List) CanWrite(user *User) bool { // Admins always have write access if l.IsAdmin(user) { return true } // Check individual rights if l.checkListUserRight(user, UserRightWrite) { return true } return l.checkListTeamRight(user, TeamRightWrite) } // CanRead checks if a user has read access to a list func (l *List) CanRead(user *User) bool { // Admins always have read access if l.IsAdmin(user) { return true } // Check individual rights if l.checkListUserRight(user, UserRightRead) { return true } return l.checkListTeamRight(user, TeamRightRead) } // CanDelete checks if the user can delete a list func (l *List) CanDelete(doer *User) bool { if err := l.GetSimpleByID(); err != nil { log.Log.Error("Error occurred during CanDelete for List: %s", err) return false } return l.IsAdmin(doer) } // CanUpdate checks if the user can update a list func (l *List) CanUpdate(doer *User) bool { if err := l.GetSimpleByID(); err != nil { log.Log.Error("Error occurred during CanUpdate for List: %s", err) return false } return l.CanWrite(doer) } // CanCreate checks if the user can update a list func (l *List) CanCreate(doer *User) bool { // A user can create a list if he has write access to the namespace n, _ := GetNamespaceByID(l.NamespaceID) return n.CanWrite(doer) } func (l *List) checkListTeamRight(user *User, r TeamRight) bool { exists, err := x.Select("l.*"). Table("list"). Alias("l"). Join("LEFT", []string{"team_namespaces", "tn"}, " l.namespace_id = tn.namespace_id"). Join("LEFT", []string{"team_members", "tm"}, "tm.team_id = tn.team_id"). Join("LEFT", []string{"team_list", "tl"}, "l.id = tl.list_id"). Join("LEFT", []string{"team_members", "tm2"}, "tm2.team_id = tl.team_id"). Where("((tm.user_id = ? AND tn.right = ?) OR (tm2.user_id = ? AND tl.right = ?)) AND l.id = ?", user.ID, r, user.ID, r, l.ID). Exist(&List{}) if err != nil { log.Log.Error("Error occurred during checkListTeamRight for List: %s", err) return false } return exists } func (l *List) checkListUserRight(user *User, r UserRight) bool { exists, err := x.Select("l.*"). Table("list"). Alias("l"). Join("LEFT", []string{"users_namespace", "un"}, "un.namespace_id = l.namespace_id"). Join("LEFT", []string{"users_list", "ul"}, "ul.list_id = l.id"). Join("LEFT", []string{"namespaces", "n"}, "n.id = l.namespace_id"). Where("((ul.user_id = ? AND ul.right = ?) "+ "OR (un.user_id = ? AND un.right = ?) "+ "OR n.owner_id = ?)"+ "AND l.id = ?", user.ID, r, user.ID, r, user.ID, l.ID). Exist(&List{}) if err != nil { log.Log.Error("Error occurred during checkListUserRight for List: %s", err) return false } return exists }