actions/unsubscribe.php

   1 <?php
   2 /*
   3  * Laconica - a distributed open-source microblogging tool
   4  * Copyright (C) 2008, 2009, Control Yourself, Inc.
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU Affero General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU Affero General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Affero General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 class UnsubscribeAction extends Action
  21 {
  22
  23     function handle($args)
  24     {
  25         parent::handle($args);
  26         if (!common_logged_in()) {
  27             $this->clientError(_('Not logged in.'));
  28             return;
  29         }
  30
  31         $user = common_current_user();
  32
  33         if ($_SERVER['REQUEST_METHOD'] != 'POST') {
  34             common_redirect(common_local_url('subscriptions', array('nickname' => $user->nickname)));
  35             return;
  36         }
  37
  38         # CSRF protection
  39
  40         $token = $this->trimmed('token');
  41
  42         if (!$token || $token != common_session_token()) {
  43             $this->clientError(_('There was a problem with your session token. Try again, please.'));
  44             return;
  45         }
  46
  47         $other_id = $this->arg('unsubscribeto');
  48
  49         if (!$other_id) {
  50             $this->clientError(_('No profile id in request.'));
  51             return;
  52         }
  53
  54         $other = Profile::staticGet('id', $other_id);
  55
  56         if (!$other_id) {
  57             $this->clientError(_('No profile with that id.'));
  58             return;
  59         }
  60
  61         $result = subs_unsubscribe_to($user, $other);
  62
  63         if ($result != true) {
  64             $this->clientError($result);
  65             return;
  66         }
  67
  68         if ($this->boolean('ajax')) {
  69             $this->startHTML('text/xml;charset=utf-8');
  70             $this->elementStart('head');
  71             $this->element('title', null, _('Unsubscribed'));
  72             $this->elementEnd('head');
  73             $this->elementStart('body');
  74             $subscribe = new SubscribeForm($this, $other);
  75             $subscribe->show();
  76             $this->elementEnd('body');
  77             $this->elementEnd('html');
  78         } else {
  79             common_redirect(common_local_url('subscriptions', array('nickname' =>
  80                                                                     $user->nickname)),
  81                             303);
  82         }
  83     }
  84 }