CRM/Contact/Page/ImageFile.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | Copyright CiviCRM LLC. All rights reserved.                        |
   5  |                                                                    |
   6  | This work is published under the GNU AGPLv3 license with some      |
   7  | permitted exceptions and without any warranty. For full license    |
   8  | and copyright information, see https://civicrm.org/licensing       |
   9  +--------------------------------------------------------------------+
  10  */
  11
  12 /**
  13  *
  14  * @package CRM
  15  * @copyright CiviCRM LLC https://civicrm.org/licensing
  16  */
  17 class CRM_Contact_Page_ImageFile extends CRM_Core_Page {
  18   /**
  19    * Time to live (seconds).
  20    *
  21    * @var int
  22    *
  23    * 12 hours: 12 * 60 * 60 = 43200
  24    */
  25   private $ttl = 43200;
  26
  27   /**
  28    * Run page.
  29    *
  30    * @throws \Exception
  31    */
  32   public function run() {
  33     if (!preg_match('/^[^\/]+\.(jpg|jpeg|png|gif)$/i', $_GET['photo'])) {
  34       throw new CRM_Core_Exception(ts('Malformed photo name'));
  35     }
  36
  37     // FIXME Optimize performance of image_url query
  38     $sql = "SELECT id FROM civicrm_contact WHERE image_url like %1;";
  39     $params = [
  40       1 => ["%" . $_GET['photo'], 'String'],
  41     ];
  42     $dao = CRM_Core_DAO::executeQuery($sql, $params);
  43     $cid = NULL;
  44     while ($dao->fetch()) {
  45       $cid = $dao->id;
  46     }
  47     if ($cid) {
  48       $config = CRM_Core_Config::singleton();
  49       $fileExtension = strtolower(pathinfo($_GET['photo'], PATHINFO_EXTENSION));
  50       $this->download(
  51         $config->customFileUploadDir . $_GET['photo'],
  52         'image/' . ($fileExtension == 'jpg' ? 'jpeg' : $fileExtension),
  53         $this->ttl
  54       );
  55       CRM_Utils_System::civiExit();
  56     }
  57     else {
  58       throw new CRM_Core_Exception(ts('Photo does not exist'));
  59     }
  60   }
  61
  62   /**
  63    * Download image.
  64    *
  65    * @param string $file
  66    *   Local file path.
  67    * @param string $mimeType
  68    * @param int $ttl
  69    *   Time to live (seconds).
  70    */
  71   protected function download($file, $mimeType, $ttl) {
  72     if (!file_exists($file)) {
  73       header("HTTP/1.0 404 Not Found");
  74       return;
  75     }
  76     elseif (!is_readable($file)) {
  77       header('HTTP/1.0 403 Forbidden');
  78       return;
  79     }
  80     CRM_Utils_System::setHttpHeader('Expires', gmdate('D, d M Y H:i:s \G\M\T', CRM_Utils_Time::getTimeRaw() + $ttl));
  81     CRM_Utils_System::setHttpHeader("Content-Type", $mimeType);
  82     CRM_Utils_System::setHttpHeader("Content-Disposition", "inline; filename=\"" . basename($file) . "\"");
  83     CRM_Utils_System::setHttpHeader("Cache-Control", "max-age=$ttl, public");
  84     CRM_Utils_System::setHttpHeader('Pragma', 'public');
  85     readfile($file);
  86   }
  87
  88 }