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// 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 <https://www.gnu.org/licenses/>.
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
}