libraries/classes/Controllers/Import/StatusController.php

   1 <?php
   2
   3 declare(strict_types=1);
   4
   5 namespace PhpMyAdmin\Controllers\Import;
   6
   7 use PhpMyAdmin\Core;
   8 use PhpMyAdmin\Import\Ajax;
   9 use PhpMyAdmin\Message;
  10 use PhpMyAdmin\Template;
  11
  12 use function __;
  13 use function header;
  14 use function ini_get;
  15 use function session_start;
  16 use function session_write_close;
  17 use function time;
  18 use function usleep;
  19
  20 /**
  21  * Import progress bar backend
  22  */
  23 class StatusController
  24 {
  25     /** @var Template */
  26     private $template;
  27
  28     public function __construct(Template $template)
  29     {
  30         $this->template = $template;
  31     }
  32
  33     public function __invoke(): void
  34     {
  35         [
  36             $GLOBALS['SESSION_KEY'],
  37             $GLOBALS['upload_id'],
  38             $GLOBALS['plugins'],
  39         ] = Ajax::uploadProgressSetup();
  40
  41         // $_GET["message"] is used for asking for an import message
  42         if (isset($_GET['message']) && $_GET['message']) {
  43             // AJAX requests can't be cached!
  44             Core::noCacheHeader();
  45
  46             header('Content-type: text/html');
  47
  48             // wait 0.3 sec before we check for $_SESSION variable
  49             usleep(300000);
  50
  51             $maximumTime = ini_get('max_execution_time');
  52             $GLOBALS['timestamp'] = time();
  53             // wait until message is available
  54             while (($_SESSION['Import_message']['message'] ?? null) == null) {
  55                 // close session before sleeping
  56                 session_write_close();
  57                 // sleep
  58                 usleep(250000); // 0.25 sec
  59                 // reopen session
  60                 session_start();
  61
  62                 if (time() - $GLOBALS['timestamp'] > $maximumTime) {
  63                     $_SESSION['Import_message']['message'] = Message::error(
  64                         __('Could not load the progress of the import.')
  65                     )->getDisplay();
  66                     break;
  67                 }
  68             }
  69
  70             echo $_SESSION['Import_message']['message'] ?? '';
  71
  72             if (isset($_SESSION['Import_message']['go_back_url'])) {
  73                 echo $this->template->render('import_status', [
  74                     'go_back_url' => $_SESSION['Import_message']['go_back_url'],
  75                 ]);
  76             }
  77         } else {
  78             Ajax::status($_GET['id']);
  79         }
  80     }
  81 }