interface/modules/zend_modules/library/Zend/ProgressBar/Upload/SessionProgress.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\ProgressBar\Upload;
  11
  12 use Traversable;
  13 use Zend\ProgressBar\Exception;
  14 use Zend\Stdlib\ArrayUtils;
  15
  16 /**
  17  * Progress Bar Upload Handler for PHP 5.4+ Session Upload Progress handling
  18  */
  19 class SessionProgress extends AbstractUploadHandler
  20 {
  21     /**
  22      * @param  string $id
  23      * @return array|bool
  24      * @throws Exception\PhpEnvironmentException
  25      */
  26     protected function getUploadProgress($id)
  27     {
  28         if (!$this->isSessionUploadProgressAvailable()) {
  29             throw new Exception\PhpEnvironmentException(
  30                 'Session Upload Progress is not available'
  31             );
  32         }
  33
  34         $sessionKey = ini_get('session.upload_progress.prefix') . $id;
  35         $uploadInfo = (isset($_SESSION[$sessionKey])) ? $_SESSION[$sessionKey] : null;
  36         if (!is_array($uploadInfo)) {
  37             return false;
  38         }
  39
  40         $status  = array(
  41             'total'    => 0,
  42             'current'  => 0,
  43             'rate'     => 0,
  44             'message'  => '',
  45             'done'     => false,
  46         );
  47         $status = $uploadInfo + $status;
  48         $status['total']   = $status['content_length'];
  49         $status['current'] = $status['bytes_processed'];
  50
  51         $time = time() - $status['start_time'];
  52         $status['rate'] = ($time > 0) ? $status['bytes_processed'] / $time : 0;
  53
  54         if (!empty($status['cancel_upload'])) {
  55             $status['done'] = true;
  56             $status['message'] = 'The upload has been canceled';
  57         }
  58
  59         return $status;
  60     }
  61
  62     /**
  63      * Checks if Session Upload Progress is available
  64      *
  65      * @return bool
  66      */
  67     public function isSessionUploadProgressAvailable()
  68     {
  69         return (bool) ini_get('session.upload_progress.enabled');
  70     }
  71 }