CRM/Contact/Page/ImageFile.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 class CRM_Contact_Page_ImageFile extends CRM_Core_Page {
  34   /**
  35    * @var int Time to live (seconds).
  36    *
  37    * 12 hours: 12 * 60 * 60 = 43200
  38    */
  39   private $ttl = 43200;
  40
  41   public function run() {
  42     if (!preg_match('/^[^\/]+\.(jpg|jpeg|png|gif)$/i', $_GET['photo'])) {
  43       CRM_Core_Error::fatal('Malformed photo name');
  44     }
  45
  46     // FIXME Optimize performance of image_url query
  47     $sql = "SELECT id FROM civicrm_contact WHERE image_url like %1;";
  48     $params = array(
  49       1 => array("%" . $_GET['photo'], 'String'),
  50     );
  51     $dao = CRM_Core_DAO::executeQuery($sql, $params);
  52     while ($dao->fetch()) {
  53       $cid = $dao->id;
  54     }
  55     if ($cid) {
  56       $config = CRM_Core_Config::singleton();
  57       $this->download(
  58         $config->customFileUploadDir . $_GET['photo'],
  59         'image/' . pathinfo($_GET['photo'], PATHINFO_EXTENSION),
  60         $this->ttl
  61       );
  62       CRM_Utils_System::civiExit();
  63     }
  64     else {
  65       CRM_Core_Error::fatal('Photo does not exist');
  66     }
  67   }
  68
  69   /**
  70    * @param string $file
  71    *   Local file path.
  72    * @param string $mimeType
  73    * @param int $ttl
  74    *   Time to live (seconds).
  75    */
  76   protected function download($file, $mimeType, $ttl) {
  77     if (!file_exists($file)) {
  78       header("HTTP/1.0 404 Not Found");
  79       return;
  80     } elseif (!is_readable($file)) {
  81       header('HTTP/1.0 403 Forbidden');
  82       return;
  83     }
  84     CRM_Utils_System::setHttpHeader('Expires', gmdate('D, d M Y H:i:s \G\M\T', CRM_Utils_Time::getTimeRaw() + $ttl));
  85     CRM_Utils_System::setHttpHeader("Content-Type", $mimeType);
  86     CRM_Utils_System::setHttpHeader("Content-Disposition", "inline; filename=\"" . basename($file) . "\"");
  87     CRM_Utils_System::setHttpHeader("Cache-Control", "max-age=$ttl, public");
  88     CRM_Utils_System::setHttpHeader('Pragma', 'public');
  89     readfile($file);
  90   }
  91
  92 }