protected function unzip()
{
// 一時ディレクトリにZIPを展開
$temp_dir = $this->getTempDir() . '/';
$temp_zip = $temp_dir . $this->zip_name;
if (!backup_copy_file($this->zip_dir . '/' . $this->zip_name, $temp_zip)) {
throw new SharingCart_Exception('Unzip failure - backup_copy_file("' . $this->zip_dir . '/' . $this->zip_name . '", "' . $temp_zip . '")');
}
if (!restore_unzip($temp_zip)) {
throw new SharingCart_Exception('Unzip failure');
}
// blackboard の変換
global $CFG;
require_once $CFG->dirroot . '/backup/bb/restore_bb.php';
if (!blackboard_convert($temp_dir)) {
throw new SharingCart_Exception('Backboard convertion failure');
}
}
/**
* @param string $errorstr passed by reference, if silent is true,
* errorstr will be populated and this function will return false rather than calling error() or notify()
* @param boolean $noredirect (optional) if this is passed, this function will not print continue, or
* redirect to the next step in the restore process, instead will return $backup_unique_code
*/
function restore_precheck($id, $file, &$errorstr, $noredirect = false)
{
global $CFG, $SESSION;
//Prepend dataroot to variable to have the absolute path
$file = $CFG->dataroot . "/" . $file;
if (!defined('RESTORE_SILENTLY')) {
//Start the main table
echo "<table cellpadding=\"5\">";
echo "<tr><td>";
//Start the mail ul
echo "<ul>";
}
//Check the file exists
if (!is_file($file)) {
if (!defined('RESTORE_SILENTLY')) {
error("File not exists ({$file})");
} else {
$errorstr = "File not exists ({$file})";
return false;
}
}
//Check the file name ends with .zip
if (!substr($file, -4) == ".zip") {
if (!defined('RESTORE_SILENTLY')) {
error("File has an incorrect extension");
} else {
$errorstr = 'File has an incorrect extension';
return false;
}
}
//Now calculate the unique_code for this restore
$backup_unique_code = time();
//Now check and create the backup dir (if it doesn't exist)
if (!defined('RESTORE_SILENTLY')) {
echo "<li>" . get_string("creatingtemporarystructures") . '</li>';
}
$status = check_and_create_backup_dir($backup_unique_code);
//Empty dir
if ($status) {
$status = clear_backup_dir($backup_unique_code);
}
//Now delete old data and directories under dataroot/temp/backup
if ($status) {
if (!defined('RESTORE_SILENTLY')) {
echo "<li>" . get_string("deletingolddata") . '</li>';
}
$status = backup_delete_old_data();
}
//Now copy he zip file to dataroot/temp/backup/backup_unique_code
if ($status) {
if (!defined('RESTORE_SILENTLY')) {
echo "<li>" . get_string("copyingzipfile") . '</li>';
}
if (!($status = backup_copy_file($file, $CFG->dataroot . "/temp/backup/" . $backup_unique_code . "/" . basename($file)))) {
if (!defined('RESTORE_SILENTLY')) {
notify("Error copying backup file. Invalid name or bad perms.");
} else {
$errorstr = "Error copying backup file. Invalid name or bad perms";
return false;
}
}
}
//Now unzip the file
if ($status) {
if (!defined('RESTORE_SILENTLY')) {
echo "<li>" . get_string("unzippingbackup") . '</li>';
}
if (!($status = restore_unzip($CFG->dataroot . "/temp/backup/" . $backup_unique_code . "/" . basename($file)))) {
if (!defined('RESTORE_SILENTLY')) {
notify("Error unzipping backup file. Invalid zip file.");
} else {
$errorstr = "Error unzipping backup file. Invalid zip file.";
return false;
}
}
}
//Check for Blackboard backups and convert
if ($status) {
require_once "{$CFG->dirroot}/backup/bb/restore_bb.php";
if (!defined('RESTORE_SILENTLY')) {
echo "<li>" . get_string("checkingforbbexport") . '</li>';
}
$status = blackboard_convert($CFG->dataroot . "/temp/backup/" . $backup_unique_code);
}
//Now check for the moodle.xml file
if ($status) {
$xml_file = $CFG->dataroot . "/temp/backup/" . $backup_unique_code . "/moodle.xml";
if (!defined('RESTORE_SILENTLY')) {
echo "<li>" . get_string("checkingbackup") . '</li>';
}
if (!($status = restore_check_moodle_file($xml_file))) {
if (!is_file($xml_file)) {
$errorstr = 'Error checking backup file. moodle.xml not found at root level of zip file.';
} else {
$errorstr = 'Error checking backup file. moodle.xml is incorrect or corrupted.';
}
if (!defined('RESTORE_SILENTLY')) {
notify($errorstr);
} else {
return false;
}
}
}
$info = "";
$course_header = "";
//Now read the info tag (all)
if ($status) {
if (!defined('RESTORE_SILENTLY')) {
echo "<li>" . get_string("readinginfofrombackup") . '</li>';
}
//Reading info from file
$info = restore_read_xml_info($xml_file);
//Reading course_header from file
$course_header = restore_read_xml_course_header($xml_file);
if (!is_object($course_header)) {
// ensure we fail if there is no course header
$course_header = false;
}
}
if (!defined('RESTORE_SILENTLY')) {
//End the main ul
echo "</ul>\n";
//End the main table
echo "</td></tr>";
echo "</table>";
}
//We compare Moodle's versions
if ($CFG->version < $info->backup_moodle_version && $status) {
$message = new object();
$message->serverversion = $CFG->version;
$message->serverrelease = $CFG->release;
$message->backupversion = $info->backup_moodle_version;
$message->backuprelease = $info->backup_moodle_release;
print_simple_box(get_string('noticenewerbackup', '', $message), "center", "70%", '', "20", "noticebox");
}
//Now we print in other table, the backup and the course it contains info
if ($info and $course_header and $status) {
//First, the course info
if (!defined('RESTORE_SILENTLY')) {
$status = restore_print_course_header($course_header);
}
//Now, the backup info
if ($status) {
if (!defined('RESTORE_SILENTLY')) {
$status = restore_print_info($info);
}
}
}
//Save course header and info into php session
if ($status) {
$SESSION->info = $info;
$SESSION->course_header = $course_header;
}
//Finally, a little form to continue
//with some hidden fields
if ($status) {
if (!defined('RESTORE_SILENTLY')) {
echo "<br /><div style='text-align:center'>";
$hidden["backup_unique_code"] = $backup_unique_code;
$hidden["launch"] = "form";
$hidden["file"] = $file;
$hidden["id"] = $id;
print_single_button("restore.php", $hidden, get_string("continue"), "post");
echo "</div>";
} else {
if (empty($noredirect)) {
// in 2.0 we must not print "Continue" redirect link here, because ppl click on it and the execution gets interrupted on next page!!!
// imo RESTORE_SILENTLY is an ugly hack :-P
$sillystr = get_string('donotclickcontinue');
redirect($CFG->wwwroot . '/backup/restore.php?backup_unique_code=' . $backup_unique_code . '&launch=form&file=' . $file . '&id=' . $id, $sillystr, 0);
} else {
return $backup_unique_code;
}
}
}
if (!$status) {
if (!defined('RESTORE_SILENTLY')) {
error("An error has ocurred");
} else {
$errorstr = "An error has occured";
// helpful! :P
return false;
}
}
return true;
}
public static function restoreCourse($preferences, $session)
{
global $Out;
// the initial set of preferences should be enough to get the restore started.
// once in progress the restore will obtain the preferences from the backup file
// itself
if (!isset($preferences)) {
return null;
}
// Assumes the backup file is in the course data directory and the
// preferences are in the backup file itself.
global $CFG;
// for large files uncomment following code
//@ini_set("max_execution_time","3000");
//raise_memory_limit("192M");
$file = self::createBackupFilePath($preferences->course_id);
$file .= '/' . $preferences->backup_name;
//path to file
//Check the file exists
if (!is_file($file)) {
return false;
}
//Check the file name ends with .zip
if (!substr($file, -4) == ".zip") {
return false;
}
//Now calculate the unique_code for this restore
$backup_unique_code = $preferences->backup_unique_code;
//Now check and create the backup dir (if it doesn't exist)
$status = check_and_create_backup_dir($backup_unique_code);
//Empty dir
if ($status) {
$status = clear_backup_dir($backup_unique_code);
}
//Now delete old data and directories under dataroot/temp/backup
if ($status) {
$status = backup_delete_old_data();
}
$tempBackupPath = synch_backup_controller::createTempBackupPath($backup_unique_code);
//Now copy the zip file to dataroot/temp/backup/backup_unique_code
if ($status) {
if (!($status = backup_copy_file($file, $tempBackupPath . "/" . basename($file)))) {
// There has been a problem. Invalid name or bad perms
return false;
}
}
//Now unzip the file
if ($status) {
if (!($status = restore_unzip($tempBackupPath . "/" . basename($file)))) {
// error: Invalid zip file
return false;
}
}
//Check for Blackboard backups and convert
if ($status) {
require_once "{$CFG->dirroot}/backup/bb/restore_bb.php";
$status = blackboard_convert($tempBackupPath);
}
// backup file has now been unpacked. Retrieve the serialized preferences
$preferencesPath = $tempBackupPath . '/' . self::getPreferencesFileName();
$preferences = FileSystem::unSerializeFromFile($preferencesPath);
// Now we have the preferences from the backup we need to tailor it to our current needs
// should we be updating an existing item or creating one.
$dataItemId = SynchContentHierarchy::generateDataItemId($preferences->course_id, synch_view_controller::$TYPE_ID_COURSE);
global $SynchManager, $SynchServerController;
$itemExists = $SynchManager->getSessionItemExistsByServerId($SynchServerController->getServerId(), $session);
if (isset($itemExists) && is_array($itemExists) && in_array($dataItemId, $itemExists)) {
$preferences->restoreto = 1;
$preferences->deleting = 1;
} else {
$preferences->restoreto = 2;
}
//Now check for the moodle.xml file
if ($status) {
$xml_file = $tempBackupPath . "/moodle.xml";
if (!($status = restore_check_moodle_file($xml_file))) {
if (!is_file($xml_file)) {
//Error checking backup file. moodle.xml not found at root level of zip file
return false;
} else {
//Error checking backup file. moodle.xml is incorrect or corrupted.
return false;
}
}
}
//unpack backup file
//read contents
//Reading info from file
$info = restore_read_xml_info($xml_file);
//Reading course_header from file
$courseHeader = restore_read_xml_course_header($xml_file);
//Save course header and info into php session
if ($status) {
//$SESSION->info = $info;
//$SESSION->course_header = $course_header;
}
global $restore;
$restore = $preferences;
$message = null;
$restoreSuccess = restore_execute($preferences, $info, $courseHeader, $message);
return $restoreSuccess;
}
