CRM/Mailing/BAO/TrackableURL.php

   1 <?php
   2 /*
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   4  | CiviCRM version 5                                                  |
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   6  | Copyright CiviCRM LLC (c) 2004-2019                                |
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  10  | CiviCRM is free software; you can copy, modify, and distribute it  |
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  26  */
  27
  28 /**
  29  *
  30  * @package CRM
  31  * @copyright CiviCRM LLC (c) 2004-2019
  32  */
  33 class CRM_Mailing_BAO_TrackableURL extends CRM_Mailing_DAO_TrackableURL {
  34
  35   /**
  36    * Class constructor.
  37    */
  38   public function __construct() {
  39     parent::__construct();
  40   }
  41
  42   /**
  43    * Given a url, mailing id and queue event id, find or construct a
  44    * trackable url and redirect url.
  45    *
  46    * @param string $url
  47    *   The target url to track.
  48    * @param int $mailing_id
  49    *   The id of the mailing.
  50    * @param int $queue_id
  51    *   The queue event id (contact clicking through).
  52    *
  53    * @return string
  54    *   The redirect/tracking url
  55    */
  56   public static function getTrackerURL($url, $mailing_id, $queue_id) {
  57
  58     static $urlCache = [];
  59
  60     if (array_key_exists($mailing_id . $url, $urlCache)) {
  61       return $urlCache[$mailing_id . $url] . "&qid=$queue_id";
  62     }
  63
  64     // hack for basic CRM-1014 and CRM-1151 and CRM-3492 compliance:
  65     // let's not replace possible image URLs and CiviMail ones
  66     if (preg_match('/\.(png|jpg|jpeg|gif|css)[\'"]?$/i', $url)
  67       or substr_count($url, 'civicrm/extern/')
  68       or substr_count($url, 'civicrm/mailing/')
  69     ) {
  70       // let's not cache these, so they don't get &qid= appended to them
  71       return $url;
  72     }
  73     else {
  74
  75       $hrefExists = FALSE;
  76       $config = CRM_Core_Config::singleton();
  77
  78       $tracker = new CRM_Mailing_BAO_TrackableURL();
  79       if (preg_match('/^href/i', $url)) {
  80         $url = preg_replace('/^href[ ]*=[ ]*[\'"](.*?)[\'"]$/i', '$1', $url);
  81         $hrefExists = TRUE;
  82       }
  83
  84       $tracker->url = $url;
  85       $tracker->mailing_id = $mailing_id;
  86
  87       if (!$tracker->find(TRUE)) {
  88         $tracker->save();
  89       }
  90       $id = $tracker->id;
  91
  92       $redirect = $config->userFrameworkResourceURL . "extern/url.php?u=$id";
  93       $urlCache[$mailing_id . $url] = $redirect;
  94     }
  95
  96     $returnUrl = "{$urlCache[$mailing_id . $url]}&qid={$queue_id}";
  97
  98     if ($hrefExists) {
  99       $returnUrl = "href='{$returnUrl}' rel='nofollow'";
 100     }
 101
 102     return $returnUrl;
 103   }
 104
 105   /**
 106    * @param $url
 107    * @param $mailing_id
 108    *
 109    * @return int
 110    *   Url id of the given url and mail
 111    */
 112   public static function getTrackerURLId($url, $mailing_id) {
 113     $tracker = new CRM_Mailing_BAO_TrackableURL();
 114     $tracker->url = $url;
 115     $tracker->mailing_id = $mailing_id;
 116     if ($tracker->find(TRUE)) {
 117       return $tracker->id;
 118     }
 119
 120     return NULL;
 121   }
 122
 123 }