admin/maintenance.php

   1 <?php // $Id$
   2       // Enables/disables maintenance mode
   3
   4     require('../config.php');
   5     require_once($CFG->libdir.'/adminlib.php');
   6
   7     $action = optional_param('action', '', PARAM_ALPHA);
   8
   9     admin_externalpage_setup('maintenancemode');
  10
  11     //Check folder exists
  12     if (! make_upload_directory(SITEID)) {   // Site folder
  13             error("Could not create site folder.  The site administrator needs to fix the file permissions");
  14         }
  15
  16     $filename = $CFG->dataroot.'/'.SITEID.'/maintenance.html';
  17
  18     if ($form = data_submitted()) {
  19         if (confirm_sesskey()) {
  20             if ($form->action == "disable") {
  21                 unlink($filename);
  22                 redirect('maintenance.php', get_string('sitemaintenanceoff','admin'));
  23             } else {
  24                 $file = fopen($filename, 'w');
  25                 fwrite($file, stripslashes($form->text));
  26                 fclose($file);
  27                 redirect('maintenance.php', get_string('sitemaintenanceon', 'admin'));
  28             }
  29         }
  30     }
  31
  32 /// Print the header stuff
  33
  34     admin_externalpage_print_header();
  35
  36 /// Print the appropriate form
  37
  38     if (file_exists($filename)) {   // We are in maintenance mode
  39         echo '<div style="margin-left:auto;margin-right:auto">';
  40         echo '<form action="maintenance.php" method="post">';
  41         echo '<input type="hidden" name="action" value="disable" />';
  42         echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
  43         echo '<p><input type="submit" value="'.get_string('disable').'" /></p>';
  44         echo '</form>';
  45         echo '</div>';
  46     } else {                        // We are not in maintenance mode
  47         $usehtmleditor = can_use_html_editor();
  48
  49         echo '<div style="text-align:center;margin-left:auto;margin-right:auto">';
  50         echo '<form action="maintenance.php" method="post">';
  51         echo '<div>';
  52         echo '<input type="hidden" name="action" value="enable" />';
  53         echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
  54         echo '<p><input type="submit" value="'.get_string('enable').'" /></p>';
  55         echo '<p>'.get_string('optionalmaintenancemessage', 'admin').':</p>';
  56         echo '<table><tr><td>';
  57         print_textarea($usehtmleditor, 20, 50, 600, 400, "text");
  58         echo '</td></tr></table>';
  59         echo '</div>';
  60         echo '</form>';
  61         echo '</div>';
  62
  63         if ($usehtmleditor) {
  64             use_html_editor();
  65         }
  66     }
  67
  68     admin_externalpage_print_footer();
  69 ?>