api/pkg/models/tasks_rights.go

83 lines
2.7 KiB
Go

// Vikunja is a to-do list application to facilitate your life.
// Copyright 2018-2021 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 Affero General Public Licensee 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 Affero General Public Licensee for more details.
//
// You should have received a copy of the GNU Affero General Public Licensee
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package models
import (
"code.vikunja.io/web"
"xorm.io/xorm"
)
// CanDelete checks if the user can delete an task
func (t *Task) CanDelete(s *xorm.Session, a web.Auth) (bool, error) {
return t.canDoTask(s, a)
}
// CanUpdate determines if a user has the right to update a project task
func (t *Task) CanUpdate(s *xorm.Session, a web.Auth) (bool, error) {
return t.canDoTask(s, a)
}
// CanCreate determines if a user has the right to create a project task
func (t *Task) CanCreate(s *xorm.Session, a web.Auth) (bool, error) {
// A user can do a task if he has write acces to its project
l := &Project{ID: t.ProjectID}
return l.CanWrite(s, a)
}
// CanRead determines if a user can read a task
func (t *Task) CanRead(s *xorm.Session, a web.Auth) (canRead bool, maxRight int, err error) {
// Get the task, error out if it doesn't exist
*t, err = GetTaskByIDSimple(s, t.ID)
if err != nil {
return
}
// A user can read a task if it has access to the project
l := &Project{ID: t.ProjectID}
return l.CanRead(s, a)
}
// CanWrite checks if a user has write access to a task
func (t *Task) CanWrite(s *xorm.Session, a web.Auth) (canWrite bool, err error) {
return t.canDoTask(s, a)
}
// Helper function to check if a user can do stuff on a project task
func (t *Task) canDoTask(s *xorm.Session, a web.Auth) (bool, error) {
// Get the task
ot, err := GetTaskByIDSimple(s, t.ID)
if err != nil {
return false, err
}
// Check if we're moving the task into a different project to check if the user has sufficient rights for that on the new project
if t.ProjectID != 0 && t.ProjectID != ot.ProjectID {
newProject := &Project{ID: t.ProjectID}
can, err := newProject.CanWrite(s, a)
if err != nil {
return false, err
}
if !can {
return false, ErrGenericForbidden{}
}
}
// A user can do a task if it has write acces to its project
l := &Project{ID: ot.ProjectID}
return l.CanWrite(s, a)
}