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<?php //$Id: backup.php,v 1.33.2.2 2006/08/13 20:25:46 tjhunt Exp $
//This script is used to configure and execute the backup proccess.
//Define some globals for all the script
require_once ("../config.php");
require_once ("lib.php");
require_once ("backuplib.php");
require_once ("$CFG->libdir/blocklib.php");
$id = optional_param( 'id' ); // course id
$to = optional_param( 'to' ); // id of course to import into afterwards.
$cancel = optional_param( 'cancel' );
$launch = optional_param( 'launch' );
require_login();
if (!empty($id)) {
if (!isteacheredit($id)) {
error("You need to be a teacher or admin user to use this page.", "$CFG->wwwroot/login/index.php");
}
} else {
if (!isadmin()) {
error("You need to be an admin user to use this page.", "$CFG->wwwroot/login/index.php");
}
}
if (!empty($to)) {
if (!isteacheredit($to)) {
error("You need to be a teacher or admin user to use this page.", "$CFG->wwwroot/login/index.php");
}
}
//Check site
if (!$site = get_site()) {
error("Site not found!");
}
//Check necessary functions exists. Thanks to gregb@crowncollege.edu
backup_required_functions();
//Check backup_version
if ($id) {
$linkto = "backup.php?id=".$id.((!empty($to)) ? '&to='.$to : '');
} else {
$linkto = "backup.php";
}
upgrade_backup_db($linkto);
//Get strings
if (empty($to)) {
$strcoursebackup = get_string("coursebackup");
}
else {
$strcoursebackup = get_string('importdata');
}
$stradministration = get_string("administration");
//If cancel has been selected, go back to course main page (bug 2817)
if ($cancel) {
if ($id) {
$redirecto = $CFG->wwwroot . '/course/view.php?id=' . $id; //Course page
} else {
$redirecto = $CFG->wwwroot;
}
redirect ($redirecto, get_string('backupcancelled')); //Site page
exit;
}
//If no course has been selected, show a list of available courses
if (!$id) {
print_header("$site->shortname: $strcoursebackup", $site->fullname,
"<a href=\"$CFG->wwwroot/$CFG->admin/index.php\">$stradministration</a> -> $strcoursebackup");
if ($courses = get_courses('all','c.shortname','c.id,c.shortname,c.fullname')) {
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("$CFG->wwwroot/$CFG->admin/index.php");
}
print_footer();
exit;
}
//Get and check course
if (! $course = get_record("course", "id", $id)) {
error("Course ID was incorrect (can't find it)");
}
check_for_restricted_user($USER->username, "$CFG->wwwroot/course/view.php?id=$course->id");
//Print header
if (isadmin()) {
print_header("$site->shortname: $strcoursebackup", $site->fullname,
"<a href=\"$CFG->wwwroot/$CFG->admin/index.php\">$stradministration</a> ->
<a href=\"backup.php\">$strcoursebackup</a> -> $course->fullname ($course->shortname)");
} else {
print_header("$course->shortname: $strcoursebackup", $course->fullname,
"<a href=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</a> ->
$strcoursebackup");
}
//Print form
print_heading("$strcoursebackup: $course->fullname ($course->shortname)");
print_simple_box_start("center");
//Adjust some php variables to the execution of this script
@ini_set("max_execution_time","3000");
raise_memory_limit("128M");
//Call the form, depending the step we are
if (!$launch) {
// if we're at the start, clear the cache of prefs
if (isset($SESSION->backupprefs[$course->id])) {
unset($SESSION->backupprefs[$course->id]);
}
include_once("backup_form.html");
} else if ($launch == "check") {
include_once("backup_check.html");
} else if ($launch == "execute") {
include_once("backup_execute.html");
}
print_simple_box_end();
//Print footer
print_footer();
?>
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