public function restoreMergedBackup($dataItemId, $files, $session)
{
global $CFG;
$page = new stdClass();
//Move the merged backup file from the session folder to the course folder
// Move the backups from the course directory into synch/sessions/sessionid/backups with the serverid appended the file name
// Generate a new file name from the original backup file and the local server id
//$newFileName = $this->createSessionBackupFileName($preferences);
$sessionBackupFileName = $files['merged'];
// Generate the path to the session backup folder
$sessionBackupPath = $this->createSessionBackupPath($session);
// Does the merge file exist
if (!FileSystem::exists($sessionBackupPath . '/' . $sessionBackupFileName, 'f')) {
return false;
}
// Move the session merge file to the course backup folder.
if (1) {
// fudge for testing in development
$courseBackupFileName = FileSystem::removeFromFileName($sessionBackupFileName, $CFG->synch->merge_file_suffix);
$courseBackupFileName = FileSystem::removeFromFileName($courseBackupFileName, synch_backup_controller::getUniqueCodeFromFileName($sessionBackupFileName));
// Do we need to update the file name within the preferences. We will be passing
// the file name and from then on it shouldn't be required.
$courseId = SynchContentHierarchy::getIdFromDataItemId($dataItemId);
$courseBackupPath = synch_Backup_controller::createBackupFilePath($courseId);
// Create the folder structure if necessary
FileSystem::createFoldersFromPath($courseBackupPath);
$moved = FileSystem::copyFile($sessionBackupPath . '/' . $sessionBackupFileName, $courseBackupPath . '/' . $courseBackupFileName);
} else {
$moved = true;
}
if (!$moved) {
return false;
}
$preferences = new Object();
$preferences->course_id = $courseId;
$preferences->backup_name = $courseBackupFileName;
$preferences->backup_unique_code = synch_backup_controller::getUniqueCodeFromFileName($sessionBackupFileName);
global $SynchServerController;
// If there are changes from the remote Moodle restore to the local Moodle
$remoteServerId = $SynchServerController->getRemoteServerId();
if ($this->getSessionHasChangesByServerId($remoteServerId, $session)) {
// Call the restoreCourse method of SynchBackupController
$restored = synch_backup_controller::restoreCourse($preferences, $session);
}
return $restored;
}
public static function restoreCourse($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;
}
