CRM/Activity/BAO/ICalendar.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | CiviCRM version 4.7                                                |
   5  +--------------------------------------------------------------------+
   6  | Copyright CiviCRM LLC (c) 2004-2015                                |
   7  +--------------------------------------------------------------------+
   8  | This file is a part of CiviCRM.                                    |
   9  |                                                                    |
  10  | CiviCRM is free software; you can copy, modify, and distribute it  |
  11  | under the terms of the GNU Affero General Public License           |
  12  | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
  13  |                                                                    |
  14  | CiviCRM is distributed in the hope that it will be useful, but     |
  15  | WITHOUT ANY WARRANTY; without even the implied warranty of         |
  16  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
  17  | See the GNU Affero General Public License for more details.        |
  18  |                                                                    |
  19  | You should have received a copy of the GNU Affero General Public   |
  20  | License and the CiviCRM Licensing Exception along                  |
  21  | with this program; if not, contact CiviCRM LLC                     |
  22  | at info[AT]civicrm[DOT]org. If you have questions about the        |
  23  | GNU Affero General Public License or the licensing of CiviCRM,     |
  24  | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
  25  +--------------------------------------------------------------------+
  26  */
  27
  28 /**
  29  *
  30  * @package CRM
  31  * @copyright CiviCRM LLC (c) 2004-2015
  32  */
  33
  34 /**
  35  * Generate ical invites for activities.
  36  */
  37 class CRM_Activity_BAO_ICalendar {
  38
  39   /**
  40    * @var object The activity for which we're generating ical.
  41    */
  42   protected $activity;
  43
  44   /**
  45    * Constructor.
  46    *
  47    * @param object $act
  48    *   Reference to an activity object.
  49    *
  50    * @return \CRM_Activity_BAO_ICalendar
  51    */
  52   public function __construct(&$act) {
  53     $this->activity = $act;
  54   }
  55
  56   /**
  57    * Add an ics attachment to the input array.
  58    *
  59    * @param array $attachments
  60    *   Reference to array in same format returned from CRM_Core_BAO_File::getEntityFile().
  61    * @param array $contacts
  62    *   Array of contacts (attendees).
  63    *
  64    * @return string|null
  65    *   Array index of the added attachment in the $attachments array, else NULL.
  66    */
  67   public function addAttachment(&$attachments, $contacts) {
  68     // Check preferences setting
  69     if (CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::SYSTEM_PREFERENCES_NAME, 'activity_assignee_notification_ics')) {
  70       $config = &CRM_Core_Config::singleton();
  71       $this->icsfile = tempnam($config->customFileUploadDir, 'ics');
  72       if ($this->icsfile !== FALSE) {
  73         rename($this->icsfile, $this->icsfile . '.ics');
  74         $this->icsfile .= '.ics';
  75         $icsFileName = basename($this->icsfile);
  76
  77         // get logged in user's primary email
  78         // TODO: Is there a better way to do this?
  79         $organizer = $this->getPrimaryEmail();
  80
  81         $template = CRM_Core_Smarty::singleton();
  82         $template->assign('activity', $this->activity);
  83         $template->assign('organizer', $organizer);
  84         $template->assign('contacts', $contacts);
  85         $template->assign('timezone', date_default_timezone_get());
  86         $calendar = $template->fetch('CRM/Activity/Calendar/ICal.tpl');
  87         if (file_put_contents($this->icsfile, $calendar) !== FALSE) {
  88           if (empty($attachments)) {
  89             $attachments = array();
  90           }
  91           $attachments['activity_ics'] = array(
  92             'mime_type' => 'text/calendar',
  93             'fileName' => $icsFileName,
  94             'cleanName' => $icsFileName,
  95             'fullPath' => $this->icsfile,
  96           );
  97           return 'activity_ics';
  98         }
  99       }
 100     }
 101     return NULL;
 102   }
 103
 104   /**
 105    * Remove temp file.
 106    */
 107   public function cleanup() {
 108     if (!empty ($this->icsfile)) {
 109       @unlink($this->icsfile);
 110     }
 111   }
 112
 113   /**
 114    * TODO: Is there a better way to do this?
 115    * @return string
 116    */
 117   private function getPrimaryEmail() {
 118     $session = &CRM_Core_Session::singleton();
 119     $uid = $session->get('userID');
 120     $primary = '';
 121     $emails = CRM_Core_BAO_Email::allEmails($uid);
 122     foreach ($emails as $eid => $e) {
 123       if ($e['is_primary']) {
 124         if ($e['email']) {
 125           $primary = $e['email'];
 126           break;
 127         }
 128       }
 129
 130       if (count($emails) == 1) {
 131         $primary = $e['email'];
 132         break;
 133       }
 134     }
 135     return $primary;
 136   }
 137
 138 }