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