moodle/backup/backup.php

<?PHP //$Id$
    //This script is used to configure and execute the backup proccess.

    //Define some globals for all the script

    //MUST CHANGE WITH FINAL BACKUP LOCATION !! WITHOUT TRAILING SLASH !!
    //ALL RELATIVE FROM THE LOCATION OF THE backup.php SCRIPT !!!

    $moodle_home = "../../..";
    $mods_home = "mod";

    //END MUST CHANGE

    //Units used
    require_once ("$moodle_home/config.php");
    require_once ("$moodle_home/version.php");
    require_once ("backup_version.php");
    require_once ("db/backup_$CFG->dbtype.php");
    require_once ("lib.php");

    //Optional variables    
    optional_variable($id);       // course id

    //Check login       
    require_login();

    //Check admin
    if (!isadmin()) {
        error("You need to be an admin user to use this page.", "$CFG->wwwroot/login/index.php");
    }

    //Check site
    if (!$site = get_site()) {
        error("Site noto found!");
    }
    
    //Check backup_version
    if ($CFG->backup_version) {
        if ($backup_version > $CFG->backup_version) {  // upgrade
            $a->oldversion = $CFG->backup_version;
            $a->newversion = $backup_version;
            $strdatabasechecking = get_string("databasechecking", "", $a);
            $strdatabasesuccess  = get_string("databasesuccess");
            print_header($strdatabasechecking, $strdatabasechecking, $strdatabasechecking);
            print_heading($strdatabasechecking);
            $db->debug=true;
            if (backup_upgrade($a->oldversion)) {
                $db->debug=false;
                if (set_config("backup_version", $a->newversion)) {
                    notify($strdatabasesuccess, "green");
                    notify("You are running Backup/Recovery version ".$backup_release,"black");
                    print_continue("backup.php");
                    die;
                } else {
                    notify("Upgrade failed!  (Could not update version in config table)");
                    die;
                }
            } else {
                $db->debug=false;
                notify("Upgrade failed!  See backup_version.php");
                die;
            }
        } else if ($backup_version < $CFG->backup_version) {
            notify("WARNING!!!  The code you are using is OLDER than the version that made these databases!");
        }
    //Not exists. Starting installation
    } else {
        $strdatabaseupgrades = get_string("databaseupgrades");
        print_header($strdatabaseupgrades, $strdatabaseupgrades, $strdatabaseupgrades);

        if (set_config("backup_version", "2003010100")) {
            print_heading("You are currently going to install the needed structures to Backup/Recover");
            print_continue("backup.php");
            die;
        }
    }

    //Get strings
    $strcoursebackup = get_string("coursebackup");
    $stradministration = get_string("administration");

    //If no course has been selected or cancel button pressed
    if (!$id or $cancel) {
        print_header("$site->shortname: $strcoursebackup", $site->fullname,
                     "<A HREF=\"$moodle_home/$CFG->admin/index.php\">$stradministration</A> -> $strcoursebackup");

        if ($courses = get_courses()) {
            print_heading(get_string("choosecourse"));
            print_simple_box_start("CENTER");
            foreach ($courses as $course) {
            echo "<A HREF=\"backup.php?id=$course->id\">$course->fullname ($course->shortname)</A><BR>";
            }
            print_simple_box_end();
        } else {
            print_heading(get_string("nocoursesyet"));
            print_continue("../$CFG->admin/index.php");
        }
        print_footer();
        exit;
    }

    //Get and check course
    if (! $course = get_record("course", "id", $id)) {
        error("Course ID was incorrect (can't find it)");
    }
    //Print header
    print_header("$site->shortname: $strcoursebackup", $site->fullname,
                 "<A HREF=\"$moodle_home/$CFG->admin/index.php\">$stradministration</A> ->
                  <A HREF=\"backup.php\">$strcoursebackup</A> -> $course->fullname ($course->shortname)");

    //Print form     
    print_heading("$strcoursebackup: $course->fullname ($course->shortname)");
    print_simple_box_start("center", "", "$THEME->cellheading");
    //Call the form, depending the step we are
    if (!$launch) {
        include_once("backup_form.html");
    } else if ($launch == "check") {
        include_once("backup_check.html");
    } else if ($launch == "execute") {
        include_once("backup_execute.html");
    }
    print_simple_box_end();

    //Print footer  
    print_footer();

?>