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 if (! defined('ROOT_PATH')) {
  14     define('ROOT_PATH', __DIR__ . DIRECTORY_SEPARATOR);
  15 }
  16
  17 /* PHP 5.4 stores upload progress data only in the default session.
  18  * After calling session_name(), we won't find the progress data anymore.
  19  *
  20  * https://bugs.php.net/bug.php?id=64075
  21  *
  22  * The bug should be somewhere in
  23  * https://github.com/php/php-src/blob/master/ext/session/session.c#L2342
  24  *
  25  * Until this is fixed, we need to load the default session to load the data,
  26  * export the upload progress information from there,
  27  * and re-import after switching to our session.
  28  *
  29  * However, since https://github.com/phpmyadmin/phpmyadmin/commit/063a2d99
  30  * we have deactivated this feature, so the corresponding code is now
  31  * commented out.
  32  */
  33
  34 /*
  35 if (ini_get('session.upload_progress.enabled')) {
  36
  37     $sessionupload = array();
  38     define('UPLOAD_PREFIX', ini_get('session.upload_progress.prefix'));
  39
  40     session_start();
  41     foreach ($_SESSION as $key => $value) {
  42         // only copy session-prefixed data
  43         if (substr($key, 0, strlen(UPLOAD_PREFIX))
  44             == UPLOAD_PREFIX) {
  45             $sessionupload[$key] = $value;
  46         }
  47     }
  48     // PMA will kill all variables, so let's use a constant
  49     define('SESSIONUPLOAD', serialize($sessionupload));
  50     session_write_close();
  51
  52     session_name('phpMyAdmin');
  53     session_id($_COOKIE['phpMyAdmin']);
  54 }
  55  */
  56
  57 define('PMA_MINIMUM_COMMON', 1);
  58
  59 require_once ROOT_PATH . 'libraries/common.inc.php';
  60 list(
  61     $SESSION_KEY,
  62     $upload_id,
  63     $plugins
  64 ) = ImportAjax::uploadProgressSetup();
  65
  66 /*
  67 if (defined('SESSIONUPLOAD')) {
  68     // write sessionupload back into the loaded PMA session
  69
  70     $sessionupload = unserialize(SESSIONUPLOAD);
  71     foreach ($sessionupload as $key => $value) {
  72         $_SESSION[$key] = $value;
  73     }
  74
  75     // remove session upload data that are not set anymore
  76     foreach ($_SESSION as $key => $value) {
  77         if (substr($key, 0, strlen(UPLOAD_PREFIX))
  78             == UPLOAD_PREFIX
  79             && ! isset($sessionupload[$key])
  80         ) {
  81             unset($_SESSION[$key]);
  82         }
  83     }
  84 }
  85  */
  86
  87 // $_GET["message"] is used for asking for an import message
  88 if (isset($_GET["message"]) && $_GET["message"]) {
  89     // AJAX requests can't be cached!
  90     Core::noCacheHeader();
  91
  92     header('Content-type: text/html');
  93
  94     // wait 0.3 sec before we check for $_SESSION variable,
  95     // which is set inside import.php
  96     usleep(300000);
  97
  98     $maximumTime = ini_get('max_execution_time');
  99     $timestamp = time();
 100     // wait until message is available
 101     while ($_SESSION['Import_message']['message'] == null) {
 102         // close session before sleeping
 103         session_write_close();
 104         // sleep
 105         usleep(250000); // 0.25 sec
 106         // reopen session
 107         session_start();
 108
 109         if ((time() - $timestamp) > $maximumTime) {
 110             $_SESSION['Import_message']['message'] = PhpMyAdmin\Message::error(
 111                 __('Could not load the progress of the import.')
 112             )->getDisplay();
 113             break;
 114         }
 115     }
 116
 117     echo $_SESSION['Import_message']['message'];
 118     echo '<fieldset class="tblFooters">' , "\n";
 119     echo '    [ <a href="' , $_SESSION['Import_message']['go_back_url']
 120         . '">' , __('Back') , '</a> ]' , "\n";
 121     echo '</fieldset>' , "\n";
 122 } else {
 123     ImportAjax::status($_GET["id"]);
 124 }