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     // The cookie name is not good anymore since PR #15273
  53     session_name('phpMyAdmin');
  54     session_id($_COOKIE['phpMyAdmin']);
  55 }
  56  */
  57
  58 define('PMA_MINIMUM_COMMON', 1);
  59
  60 require_once ROOT_PATH . 'libraries/common.inc.php';
  61 list(
  62     $SESSION_KEY,
  63     $upload_id,
  64     $plugins
  65 ) = ImportAjax::uploadProgressSetup();
  66
  67 /*
  68 if (defined('SESSIONUPLOAD')) {
  69     // write sessionupload back into the loaded PMA session
  70
  71     $sessionupload = unserialize(SESSIONUPLOAD);
  72     foreach ($sessionupload as $key => $value) {
  73         $_SESSION[$key] = $value;
  74     }
  75
  76     // remove session upload data that are not set anymore
  77     foreach ($_SESSION as $key => $value) {
  78         if (substr($key, 0, strlen(UPLOAD_PREFIX))
  79             == UPLOAD_PREFIX
  80             && ! isset($sessionupload[$key])
  81         ) {
  82             unset($_SESSION[$key]);
  83         }
  84     }
  85 }
  86  */
  87
  88 // $_GET["message"] is used for asking for an import message
  89 if (isset($_GET["message"]) && $_GET["message"]) {
  90     // AJAX requests can't be cached!
  91     Core::noCacheHeader();
  92
  93     header('Content-type: text/html');
  94
  95     // wait 0.3 sec before we check for $_SESSION variable,
  96     // which is set inside import.php
  97     usleep(300000);
  98
  99     $maximumTime = ini_get('max_execution_time');
 100     $timestamp = time();
 101     // wait until message is available
 102     while ($_SESSION['Import_message']['message'] == null) {
 103         // close session before sleeping
 104         session_write_close();
 105         // sleep
 106         usleep(250000); // 0.25 sec
 107         // reopen session
 108         session_start();
 109
 110         if ((time() - $timestamp) > $maximumTime) {
 111             $_SESSION['Import_message']['message'] = PhpMyAdmin\Message::error(
 112                 __('Could not load the progress of the import.')
 113             )->getDisplay();
 114             break;
 115         }
 116     }
 117
 118     if (isset($_SESSION['Import_message']['message'])) {
 119         echo $_SESSION['Import_message']['message'];
 120     }
 121     if (isset($_SESSION['Import_message']['go_back_url'])) {
 122         echo '<fieldset class="tblFooters">' , "\n";
 123         echo '    [ <a href="' , $_SESSION['Import_message']['go_back_url']
 124             . '">' , __('Back') , '</a> ]' , "\n";
 125         echo '</fieldset>' , "\n";
 126     }
 127 } else {
 128     ImportAjax::status($_GET["id"]);
 129 }