actions/subscribe.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 if (!defined('LACONICA')) { exit(1); }
  21
  22 class SubscribeAction extends Action
  23 {
  24
  25     function handle($args)
  26     {
  27         parent::handle($args);
  28
  29         if (!common_logged_in()) {
  30             $this->clientError(_('Not logged in.'));
  31             return;
  32         }
  33
  34         $user = common_current_user();
  35
  36         if ($_SERVER['REQUEST_METHOD'] != 'POST') {
  37             common_redirect(common_local_url('subscriptions', array('nickname' => $user->nickname)));
  38             return;
  39         }
  40
  41         # CSRF protection
  42
  43         $token = $this->trimmed('token');
  44
  45         if (!$token || $token != common_session_token()) {
  46             $this->clientError(_('There was a problem with your session token. Try again, please.'));
  47             return;
  48         }
  49
  50         $other_id = $this->arg('subscribeto');
  51
  52         $other = User::staticGet('id', $other_id);
  53
  54         if (!$other) {
  55             $this->clientError(_('Not a local user.'));
  56             return;
  57         }
  58
  59         $result = subs_subscribe_to($user, $other);
  60
  61         if($result != true) {
  62             $this->clientError($result);
  63             return;
  64         }
  65
  66         if ($this->boolean('ajax')) {
  67             $this->startHTML('text/xml;charset=utf-8');
  68             $this->elementStart('head');
  69             $this->element('title', null, _('Subscribed'));
  70             $this->elementEnd('head');
  71             $this->elementStart('body');
  72             $unsubscribe = new UnsubscribeForm($this, $other->getProfile());
  73             $unsubscribe->show();
  74             $this->elementEnd('body');
  75             $this->elementEnd('html');
  76         } else {
  77             common_redirect(common_local_url('subscriptions', array('nickname' =>
  78                                                                 $user->nickname)),
  79                             303);
  80         }
  81     }
  82 }