admin/backup.php

   1 <?PHP  // $Id$
   2        // backup.php - allows admin to edit all configuration variables for scheduled backups
   3
   4     require_once("../config.php");
   5     require_once("../backup/lib.php");
   6     require_once("../backup/backup_scheduled.php");
   7
   8     require_login();
   9
  10     if (!isadmin()) {
  11         error("Only an admin can use this page");
  12     }
  13
  14     if (!$site = get_site()) {
  15         error("Site isn't defined!");
  16     }
  17
  18     //Initialise error variables
  19     $error = false;
  20     $sche_destination_error = "";
  21
  22     /// If data submitted, then process and store.
  23
  24     if (($config = data_submitted()) && confirm_sesskey()) {
  25
  26         //First of all we check that everything is correct
  27         //Check for trailing slash and backslash in backup_sche_destination
  28         if (!empty($backup_sche_destination) and
  29             (substr($backup_sche_destination,-1) == "/" or substr($backup_sche_destination,-1) == "\\")) {
  30             $error = true;
  31             $sche_destination_error = get_string("pathslasherror");
  32         //Now check that backup_sche_destination dir exists
  33         } else if (!empty($backup_sche_destination) and
  34             !is_dir($backup_sche_destination)) {
  35             $error = true;
  36             $sche_destination_error = get_string("pathnotexists");
  37         }
  38
  39         //We need to do some weekdays conversions prior to continue
  40         $i = 0;
  41         $temp = "";
  42         $a_config = (array)$config;
  43         while ($i<7) {
  44             $tocheck = "dayofweek_".$i;
  45             if (isset($a_config[$tocheck])) {
  46                 $temp .= "1";
  47             } else {
  48                 $temp .= "0";
  49             }
  50             unset($a_config[$tocheck]);
  51             $i++;
  52         }
  53         $a_config['backup_sche_weekdays'] = $temp;
  54         $config = (object)$a_config;
  55         //weekdays conversions done. Continue
  56
  57         foreach ($config as $name => $value) {
  58             backup_set_config($name, $value);
  59         }
  60
  61         //And now, we execute schedule_backup_next_execution() for each course in the server to have the next
  62         //execution time updated automatically everytime it's changed.
  63         $status = true;
  64         //get admin
  65         $admin = get_admin();
  66         if (!$admin) {
  67             $status = false;
  68         }
  69         //get backup config
  70         if (! $backup_config =  backup_get_config()) {
  71             $status = false;
  72         }
  73         if ($status) {
  74             //get courses
  75             if ($courses = get_records('course', '', '', '', 'id,shortname')) {
  76                 //For each course, we check (insert, update) the backup_course table
  77                 //with needed data
  78                 foreach ($courses as $course) {
  79                     //We check if the course exists in backup_course
  80                     $backup_course = get_record("backup_courses","courseid",$course->id);
  81                     //If it doesn't exist, create
  82                     if (!$backup_course) {
  83                         $temp_backup_course->courseid = $course->id;
  84                         $newid = insert_record("backup_courses",$temp_backup_course);
  85                         //And get it from db
  86                         $backup_course = get_record("backup_courses","id",$newid);
  87                     }
  88                     //Now, calculate next execution of the course
  89                     $nextstarttime = schedule_backup_next_execution ($backup_course,$backup_config,time(),$admin->timezone);
  90                     //Save it to db
  91                     set_field("backup_courses","nextstarttime",$nextstarttime,"courseid",$backup_course->courseid);
  92                 }
  93             }
  94         }
  95
  96         if (!$error) {
  97             redirect("$CFG->wwwroot/$CFG->admin/index.php", get_string("changessaved"), 1);
  98             exit;
  99         }
 100     }
 101
 102 /// Otherwise print the form.
 103
 104     $stradmin = get_string("administration");
 105     $strconfiguration = get_string("configuration");
 106     $strbackup = get_string("backup");
 107
 108     print_header("$site->shortname: $strconfiguration: $strbackup", $site->fullname,
 109                   "<a href=\"index.php\">$stradmin</a> -> ".
 110                   "<a href=\"configure.php\">$strconfiguration</a> -> ".
 111                   $strbackup);
 112
 113     echo "<p align=\"right\"><a href=\"../backup/log.php\">".get_string("logs")."</a></p>";
 114
 115     print_heading($strbackup);
 116
 117     print_simple_box("<center>".get_string("adminhelpbackup")."</center>", "center", "50%");
 118     echo "<br />";
 119
 120     print_simple_box_start("center");
 121
 122     //Check for required functions...
 123     if (!function_exists('utf8_encode')) {
 124         notify("You need to add XML support to your PHP installation");
 125     }
 126     include ("$CFG->dirroot/backup/config.html");
 127
 128     print_simple_box_end();
 129
 130     print_footer();
 131
 132 ?>