import_status.php

   1 <?php
   2 /**
   3  * Import progress bar backend
   4  *
   5  * @package PhpMyAdmin
   6  */
   7 declare(strict_types=1);
   8
   9 use PhpMyAdmin\Core;
  10 use PhpMyAdmin\Display\ImportAjax;
  11
  12 if (! defined('ROOT_PATH')) {
  13     define('ROOT_PATH', __DIR__ . DIRECTORY_SEPARATOR);
  14 }
  15
  16 /* PHP 5.4 stores upload progress data only in the default session.
  17  * After calling session_name(), we won't find the progress data anymore.
  18  *
  19  * https://bugs.php.net/bug.php?id=64075
  20  *
  21  * The bug should be somewhere in
  22  * https://github.com/php/php-src/blob/master/ext/session/session.c#L2342
  23  *
  24  * Until this is fixed, we need to load the default session to load the data,
  25  * export the upload progress information from there,
  26  * and re-import after switching to our session.
  27  *
  28  * However, since https://github.com/phpmyadmin/phpmyadmin/commit/063a2d99
  29  * we have deactivated this feature, so the corresponding code is now
  30  * commented out.
  31  */
  32
  33 /*
  34 if (ini_get('session.upload_progress.enabled')) {
  35
  36     $sessionupload = array();
  37     define('UPLOAD_PREFIX', ini_get('session.upload_progress.prefix'));
  38
  39     session_start();
  40     foreach ($_SESSION as $key => $value) {
  41         // only copy session-prefixed data
  42         if (substr($key, 0, strlen(UPLOAD_PREFIX))
  43             == UPLOAD_PREFIX) {
  44             $sessionupload[$key] = $value;
  45         }
  46     }
  47     // PMA will kill all variables, so let's use a constant
  48     define('SESSIONUPLOAD', serialize($sessionupload));
  49     session_write_close();
  50
  51     session_name('phpMyAdmin');
  52     session_id($_COOKIE['phpMyAdmin']);
  53 }
  54  */
  55
  56 define('PMA_MINIMUM_COMMON', 1);
  57
  58 require_once ROOT_PATH . 'libraries/common.inc.php';
  59 list(
  60     $SESSION_KEY,
  61     $upload_id,
  62     $plugins
  63 ) = ImportAjax::uploadProgressSetup();
  64
  65 /*
  66 if (defined('SESSIONUPLOAD')) {
  67     // write sessionupload back into the loaded PMA session
  68
  69     $sessionupload = unserialize(SESSIONUPLOAD);
  70     foreach ($sessionupload as $key => $value) {
  71         $_SESSION[$key] = $value;
  72     }
  73
  74     // remove session upload data that are not set anymore
  75     foreach ($_SESSION as $key => $value) {
  76         if (substr($key, 0, strlen(UPLOAD_PREFIX))
  77             == UPLOAD_PREFIX
  78             && ! isset($sessionupload[$key])
  79         ) {
  80             unset($_SESSION[$key]);
  81         }
  82     }
  83 }
  84  */
  85
  86 // $_GET["message"] is used for asking for an import message
  87 if (isset($_GET["message"]) && $_GET["message"]) {
  88     // AJAX requests can't be cached!
  89     Core::noCacheHeader();
  90
  91     header('Content-type: text/html');
  92
  93     // wait 0.3 sec before we check for $_SESSION variable,
  94     // which is set inside libraries/entry_points/import.php
  95     usleep(300000);
  96
  97     $maximumTime = ini_get('max_execution_time');
  98     $timestamp = time();
  99     // wait until message is available
 100     while ($_SESSION['Import_message']['message'] == null) {
 101         // close session before sleeping
 102         session_write_close();
 103         // sleep
 104         usleep(250000); // 0.25 sec
 105         // reopen session
 106         session_start();
 107
 108         if ((time() - $timestamp) > $maximumTime) {
 109             $_SESSION['Import_message']['message'] = PhpMyAdmin\Message::error(
 110                 __('Could not load the progress of the import.')
 111             )->getDisplay();
 112             break;
 113         }
 114     }
 115
 116     echo $_SESSION['Import_message']['message'];
 117     echo '<fieldset class="tblFooters">' , "\n";
 118     echo '    [ <a href="' , $_SESSION['Import_message']['go_back_url']
 119         . '">' , __('Back') , '</a> ]' , "\n";
 120     echo '</fieldset>' , "\n";
 121 } else {
 122     ImportAjax::status($_GET["id"]);
 123 }