import_status.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Import progress bar backend
   5  *
   6  * @package PhpMyAdmin
   7  */
   8 declare(strict_types=1);
   9
  10 use PhpMyAdmin\Core;
  11 use PhpMyAdmin\Display\ImportAjax;
  12
  13 /* PHP 5.4 stores upload progress data only in the default session.
  14  * After calling session_name(), we won't find the progress data anymore.
  15  *
  16  * https://bugs.php.net/bug.php?id=64075
  17  *
  18  * The bug should be somewhere in
  19  * https://github.com/php/php-src/blob/master/ext/session/session.c#L2342
  20  *
  21  * Until this is fixed, we need to load the default session to load the data,
  22  * export the upload progress information from there,
  23  * and re-import after switching to our session.
  24  *
  25  * However, since https://github.com/phpmyadmin/phpmyadmin/commit/063a2d99
  26  * we have deactivated this feature, so the corresponding code is now
  27  * commented out.
  28  */
  29
  30 /*
  31 if (ini_get('session.upload_progress.enabled')) {
  32
  33     $sessionupload = array();
  34     define('UPLOAD_PREFIX', ini_get('session.upload_progress.prefix'));
  35
  36     session_start();
  37     foreach ($_SESSION as $key => $value) {
  38         // only copy session-prefixed data
  39         if (substr($key, 0, strlen(UPLOAD_PREFIX))
  40             == UPLOAD_PREFIX) {
  41             $sessionupload[$key] = $value;
  42         }
  43     }
  44     // PMA will kill all variables, so let's use a constant
  45     define('SESSIONUPLOAD', serialize($sessionupload));
  46     session_write_close();
  47
  48     session_name('phpMyAdmin');
  49     session_id($_COOKIE['phpMyAdmin']);
  50 }
  51  */
  52
  53 define('PMA_MINIMUM_COMMON', 1);
  54
  55 require_once 'libraries/common.inc.php';
  56 list(
  57     $SESSION_KEY,
  58     $upload_id,
  59     $plugins
  60 ) = ImportAjax::uploadProgressSetup();
  61
  62 /*
  63 if (defined('SESSIONUPLOAD')) {
  64     // write sessionupload back into the loaded PMA session
  65
  66     $sessionupload = unserialize(SESSIONUPLOAD);
  67     foreach ($sessionupload as $key => $value) {
  68         $_SESSION[$key] = $value;
  69     }
  70
  71     // remove session upload data that are not set anymore
  72     foreach ($_SESSION as $key => $value) {
  73         if (substr($key, 0, strlen(UPLOAD_PREFIX))
  74             == UPLOAD_PREFIX
  75             && ! isset($sessionupload[$key])
  76         ) {
  77             unset($_SESSION[$key]);
  78         }
  79     }
  80 }
  81  */
  82
  83 // $_GET["message"] is used for asking for an import message
  84 if (isset($_GET["message"]) && $_GET["message"]) {
  85     // AJAX requests can't be cached!
  86     Core::noCacheHeader();
  87
  88     header('Content-type: text/html');
  89
  90     // wait 0.3 sec before we check for $_SESSION variable,
  91     // which is set inside import.php
  92     usleep(300000);
  93
  94     $maximumTime = ini_get('max_execution_time');
  95     $timestamp = time();
  96     // wait until message is available
  97     while ($_SESSION['Import_message']['message'] == null) {
  98         // close session before sleeping
  99         session_write_close();
 100         // sleep
 101         usleep(250000); // 0.25 sec
 102         // reopen session
 103         session_start();
 104
 105         if ((time() - $timestamp) > $maximumTime) {
 106             $_SESSION['Import_message']['message'] = PhpMyAdmin\Message::error(
 107                 __('Could not load the progress of the import.')
 108             )->getDisplay();
 109             break;
 110         }
 111     }
 112
 113     echo $_SESSION['Import_message']['message'];
 114     echo '<fieldset class="tblFooters">' , "\n";
 115     echo '    [ <a href="' , $_SESSION['Import_message']['go_back_url']
 116         . '">' , __('Back') , '</a> ]' , "\n";
 117     echo '</fieldset>' , "\n";
 118 } else {
 119     ImportAjax::status($_GET["id"]);
 120 }