backup/restore_execute.html

   1 <?php
   2     //This page receives the required info and executes the restore
   3     //with the parameters suplied. Whe finished, delete temporary
   4     //data from backup_tables and temp directory
   5
   6     //Get objects from session
   7     if ($SESSION) {
   8         $info = $SESSION->info;
   9         $course_header = $SESSION->course_header;
  10         $restore = $SESSION->restore;
  11
  12         // Validate objects from session by checking their checksums
  13         $status = false;
  14         if (isset($SESSION->restore_checksums)) {
  15             $checksums = $SESSION->restore_checksums;
  16             if (isset($checksums['info']) && $checksums['info'] == md5(serialize($info)) &&
  17                 isset($checksums['course_header']) && $checksums['course_header'] == md5(serialize($course_header)) &&
  18                 isset($checksums['restore']) && $checksums['restore'] == md5(serialize($restore))) {
  19
  20                 $status = true; // All session checksums were or, we can rely on that to continue restoring
  21             }
  22         }
  23         if(!$status) { // Something was wrong checking objects from session, abort with error
  24             print_error('restorechecksumfailed');
  25         }
  26     }
  27
  28     //Add info->original_wwwroot to $restore to be able to use it in all the restore process
  29     //(mainly when decoding internal links)
  30     $restore->original_wwwroot = $info->original_wwwroot;
  31     // Copy $info->original_siteidentifier, is present, so backup_is_same_site can work.
  32     if (isset($info->original_siteidentifier)) {
  33         $restore->original_siteidentifier = $info->original_siteidentifier;
  34     }
  35     //Add info->backup_version to $restore to be able to detect versions in the restore process
  36     //(to decide when to convert wiki texts to markdown...)
  37     $restore->backup_version = $info->backup_backup_version;
  38
  39     //Check login
  40     require_login();
  41
  42     $loginurl = get_login_url();
  43
  44     //Check admin
  45     if (!empty($id)) {
  46         if (!has_capability('moodle/restore:restorecourse', get_context_instance(CONTEXT_COURSE, $id))) {
  47             if (empty($to)) {
  48                 print_error("cannotuseadminadminorteacher", '', $loginurl);
  49             } else {
  50                 if (!has_capability('moodle/restore:restorecourse', get_context_instance(CONTEXT_COURSE, $to))
  51                     && !has_capability('moodle/restore:restoretargetimport',  get_context_instance(CONTEXT_COURSE, $to))) {
  52                     print_error("cannotuseadminadminorteacher", '', $loginurl);
  53                 }
  54             }
  55         }
  56     } else {
  57         if (!has_capability('moodle/restore:restorecourse', get_context_instance(CONTEXT_SYSTEM))) {
  58             print_error("cannotuseadmin", '', $loginurl);
  59         }
  60     }
  61
  62     //Check site
  63     $site = get_site();
  64     $errorstr = '';
  65
  66     $status = restore_execute($restore,$info,$course_header,$errorstr);
  67
  68     if (!$status) {
  69         print_error ("cannotrestore");
  70     }
  71
  72     if (empty($restore->importing)) {
  73         //Print final message
  74         echo $OUTPUT->box(get_string("restorefinished"));
  75     } else {
  76         echo $OUTPUT->box(get_string("importdatafinished"));
  77         $file = $CFG->dataroot . '/'
  78             . $SESSION->import_preferences->backup_course
  79             . '/backupdata/' . $SESSION->import_preferences->backup_name;
  80         if (is_readable($file)) {
  81             unlink($file);
  82         }
  83         else {
  84             error_log("import course data: couldn't unlink $file");
  85         }
  86         unset($SESSION->restore);
  87     }
  88     echo $OUTPUT->continue_button("$CFG->wwwroot/course/view.php?id=".$restore->course_id);