forked from vikunja/vikunja
85 lines
2.5 KiB
Go
85 lines
2.5 KiB
Go
// Vikunja is a to-do list application to facilitate your life.
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// Copyright 2018-2020 Vikunja and contributors. All rights reserved.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package models
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import (
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"code.vikunja.io/api/pkg/user"
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"code.vikunja.io/web"
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"github.com/go-xorm/builder"
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)
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// CanUpdate checks if a user can update a label
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func (l *Label) CanUpdate(a web.Auth) (bool, error) {
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return l.isLabelOwner(a) // Only owners should be allowed to update a label
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}
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// CanDelete checks if a user can delete a label
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func (l *Label) CanDelete(a web.Auth) (bool, error) {
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return l.isLabelOwner(a) // Only owners should be allowed to delete a label
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}
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// CanRead checks if a user can read a label
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func (l *Label) CanRead(a web.Auth) (bool, error) {
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return l.hasAccessToLabel(a)
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}
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// CanCreate checks if the user can create a label
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// Currently a dummy.
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func (l *Label) CanCreate(a web.Auth) (bool, error) {
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if _, is := a.(*LinkSharing); is {
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return false, nil
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}
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return true, nil
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}
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func (l *Label) isLabelOwner(a web.Auth) (bool, error) {
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if _, is := a.(*LinkSharing); is {
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return false, nil
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}
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lorig, err := getLabelByIDSimple(l.ID)
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if err != nil {
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return false, err
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}
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return lorig.CreatedByID == a.GetID(), nil
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}
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// Helper method to check if a user can see a specific label
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func (l *Label) hasAccessToLabel(a web.Auth) (bool, error) {
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// TODO: add an extra check for link share handling
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// Get all tasks
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taskIDs, err := getUserTaskIDs(&user.User{ID: a.GetID()})
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if err != nil {
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return false, err
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}
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// Get all labels associated with these tasks
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var labels []*Label
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has, err := x.Table("labels").
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Select("labels.*").
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Join("LEFT", "label_task", "label_task.label_id = labels.id").
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Where("label_task.label_id != null OR labels.created_by_id = ?", a.GetID()).
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Or(builder.In("label_task.task_id", taskIDs)).
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And("labels.id = ?", l.ID).
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Exist(&labels)
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return has, err
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}
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