public static function stepByStep($logDate = false, &$arrProject = array(), $_flgForceCreateStepFile = false)
{
set_time_limit(0);
ignore_user_abort(true);
error_reporting(E_ALL);
ob_implicit_flush();
include_once Xpandbuddy::$pathName . '/library/Logger.php';
self::$logger = new Xpandbuddy_Logger('step_log_file');
if (empty($logDate) && !empty($arrProject)) {
self::$logger->logDate = time();
$arrProject['step'] = 0;
self::$logger->stepProject = $arrProject;
self::$logger->setStepLog();
} else {
self::$logger->logDate = $logDate;
self::$logger->getStepLog();
}
if (empty(self::$logger->stepProject) && !empty($logDate) && !empty($arrProject) && $_flgForceCreateStepFile) {
self::$logger->logDate = $logDate;
$arrProject['step'] = 0;
self::$logger->stepProject = $arrProject;
self::$logger->setStepLog();
}
if (empty(self::$logger->stepProject)) {
self::$logger->deleteStepLog();
return self::_setErr('No project settings!');
}
if (!isset(self::$logger->stepProject['settings']['user_data']['only_settings'])) {
$_thisType = 1;
if (isset(self::$logger->stepProject['flg_type']) && is_array(self::$logger->stepProject['flg_type'])) {
foreach (self::$logger->stepProject['flg_type'] as $_key => $_value) {
if ($_key == $_value) {
$_thisType = $_value;
break;
}
}
}
self::$logger->stepProject['settings']['user_data'] = self::$logger->stepProject['settings']['type_' . $_thisType];
}
if (self::$logger->stepProject['step'] < 1) {
// Create SQL backup
if ((self::$logger->stepProject['settings']['user_data']['only_settings'] == 1 && self::$logger->stepProject['settings']['user_data']['database'] == 1 || self::$logger->stepProject['settings']['user_data']['only_settings'] == 0) && !self::createStepBackup()) {
self::$logger->setStepLog();
return self::_setErr('Can\'t create SQL backup file!');
}
self::$logString .= 'Created SQL backup file successfully.<br/>';
self::$logger->stepProject['step']++;
if (self::$logger->setStepLog() === false) {
return self::_setErr('Can\'t save data to temp file!<br/>');
}
return true;
}
$_dirStart = substr(ABSPATH, 0, -1);
$_pluginDir = WP_CONTENT_DIR . self::$ds . 'plugins' . self::$ds . 'xpandbuddy' . self::$ds;
$_wpContentDir = substr(WP_CONTENT_DIR, strlen(ABSPATH));
$_tmpDir = getcwd();
chdir(ABSPATH);
if (self::$logger->stepProject['step'] < 2) {
// Get file list
self::$logger->stepProject['arrFiles'] = array();
if (@self::$logger->stepProject['settings']['user_data']['only_settings'] == 1) {
if (@self::$logger->stepProject['settings']['user_data']['database'] == 1) {
self::$logger->stepProject['arrFiles'][] = 'wp-backups' . self::$ds . 'dump_' . self::$logger->logDate . '.sql';
}
if (@self::$logger->stepProject['settings']['user_data']['plugins'] == 1) {
self::getFiles(self::$logger->stepProject['arrFiles'], $_dirStart . self::$ds . $_wpContentDir . self::$ds . 'plugins', $_dirStart);
}
if (@self::$logger->stepProject['settings']['user_data']['themes'] == 1) {
self::getFiles(self::$logger->stepProject['arrFiles'], $_dirStart . self::$ds . $_wpContentDir . self::$ds . 'themes', $_dirStart);
}
if (@self::$logger->stepProject['settings']['user_data']['uploads'] == 1 && is_dir($_dirStart . self::$ds . $_wpContentDir . self::$ds . 'uploads' . self::_subdirCreation())) {
self::getFiles(self::$logger->stepProject['arrFiles'], $_dirStart . self::$ds . $_wpContentDir . self::$ds . 'uploads' . self::_subdirCreation(), $_dirStart);
}
} else {
if (@self::$logger->stepProject['settings']['blog']['flg_mu2single'] == 1) {
self::getFiles(self::$logger->stepProject['arrFiles'], $_dirStart, $_dirStart, false);
foreach (self::$logger->stepProject['arrFiles'] as $_id => $_file) {
if ($_file == '.htaccess') {
unset(self::$logger->stepProject['arrFiles'][$_id]);
continue;
}
}
self::getFiles(self::$logger->stepProject['arrFiles'], $_dirStart . self::$ds . 'wp-admin', $_dirStart);
self::getFiles(self::$logger->stepProject['arrFiles'], $_dirStart . self::$ds . 'wp-includes', $_dirStart);
self::getFiles(self::$logger->stepProject['arrFiles'], $_dirStart . self::$ds . $_wpContentDir . self::$ds . 'languages', $_dirStart);
self::getFiles(self::$logger->stepProject['arrFiles'], $_dirStart . self::$ds . $_wpContentDir . self::$ds . 'plugins', $_dirStart);
self::getFiles(self::$logger->stepProject['arrFiles'], $_dirStart . self::$ds . $_wpContentDir . self::$ds . 'themes', $_dirStart);
if (is_dir($_dirStart . self::$ds . $_wpContentDir . self::$ds . 'uploads' . self::$ds . 'sites' . self::_subdirCreation())) {
self::getFiles(self::$logger->stepProject['arrFiles'], $_dirStart . self::$ds . $_wpContentDir . self::$ds . 'uploads' . self::$ds . 'sites' . self::_subdirCreation(), $_dirStart);
} else {
self::$logger->stepProject['arrFiles'][] = $_wpContentDir . self::$ds . 'uploads' . self::$ds . 'sites' . self::$ds . 'index.php';
}
} else {
self::getFiles(self::$logger->stepProject['arrFiles'], $_dirStart, $_dirStart);
}
}
$_clearDirs = array();
$_saveFiles = self::$logger->stepProject['arrFiles'];
if (isset(self::$logger->stepProject['settings']['user_data']['arr_execute_dirs']) && count(self::$logger->stepProject['settings']['user_data']['arr_execute_dirs']) > 0 && isset(self::$logger->stepProject['settings']['user_data']['files_exclude']) && self::$logger->stepProject['settings']['user_data']['files_exclude'] == 1) {
foreach (@self::$logger->stepProject['settings']['user_data']['arr_execute_dirs'] as $_dirs) {
if ($_dirs['value'] == 1) {
$_clearDirs[] = stripslashes($_dirs['name']);
}
}
$_saveFiles = array();
foreach (self::$logger->stepProject['arrFiles'] as $_file) {
$_flgCheck = true;
foreach ($_clearDirs as $_needle) {
if (strpos($_dirStart . self::$ds . $_file, $_needle) === 0) {
$_flgCheck = false;
}
}
if ($_flgCheck && empty(self::$logger->stepProject['settings']['files_exclude_filter']) || $_flgCheck && !empty(self::$logger->stepProject['settings']['files_exclude_filter']) && @fnmatch(self::$logger->stepProject['settings']['files_exclude_filter'], $_dirStart . self::$ds . $_file)) {
$_saveFiles[] = $_file;
}
}
}
self::$logger->stepProject['arrAllFilesCount'] = count($_saveFiles);
self::$logger->stepProject['arrFiles'] = $_saveFiles;
self::$logString .= 'Found ' . self::$logger->stepProject['arrAllFilesCount'] . ' files & dirs.<br/>';
self::$logger->stepProject['step']++;
self::$logger->setStepLog();
return true;
}
if (@self::$logger->stepProject['settings']['blog']['flg_mu2single'] == 1) {
self::setReplaceUnit('wp-config.php', '/(WP_ALLOW_MULTISITE.*[,]{1})(.*)([\\)]{1})/i', "\${1}false\${3}", 1, 0);
self::setReplaceUnit('wp-config.php', '/(MULTISITE.*[,]{1})(.*)([\\)]{1})/i', "\${1}false\${3}", 1, 0);
self::setReplaceUnit('wp-config.php', '/(\\$table_prefix.*[\'"]{1})(.*)([\'"]{1})/i', "\${1}" . self::$logger->stepProject['settings']['blog']['db_tableprefix'] . '$3', 1, 0);
self::setReplaceUnit('##all_files##', "#" . addslashes($_wpContentDir . self::$ds . 'uploads' . self::$ds . 'sites' . self::_subdirCreation()) . "#i", addslashes($_wpContentDir . self::$ds . 'uploads'), 1, 0);
self::setReplaceUnit('##all_files##', "#" . addslashes(str_replace(self::$ds, '/', $_wpContentDir . self::$ds . 'uploads' . self::$ds . 'sites' . self::_subdirCreation())) . "#i", addslashes(str_replace(self::$ds, '/', $_wpContentDir . self::$ds . 'uploads' . self::$ds)), 1, 0);
}
$_backupFile = 'backup-prj' . self::$logger->stepProject['id'] . '-' . date("Y-m-d-H", self::$logger->logDate);
if (!isset(self::$logger->stepProject['flg_type'])) {
self::$logger->stepProject['flg_type'] = array('1' => '1');
}
self::setOptions(self::$logger->stepProject['settings'], self::$logger->stepProject['flg_type'][1]);
if (self::$logger->stepProject['step'] < 3) {
// Move all files to archive
$_flgStep3FirstRun = self::$logger->stepProject['arrAllFilesCount'] == count(self::$logger->stepProject['arrFiles']);
if (@self::$logger->stepProject['settings']['user_data']['only_settings'] == 1) {
$archivator = self::activateStepArchiveClass(false, 'wp-backups' . self::_subdirCreation(), $_flgStep3FirstRun);
} else {
$archivator = self::activateStepArchiveClass($_backupFile, substr(ABSPATH, 0, -1) . self::$ds . 'wp-backups' . self::$ds, $_flgStep3FirstRun);
}
$_summFileSize = 0;
$_inStepCounter = 0;
$_memoryLimit = ini_get('memory_limit');
switch (substr($_memoryLimit, -1)) {
case 'M':
case 'm':
$_memoryLimit = (int) $_memoryLimit * 1048576;
break;
case 'K':
case 'k':
$_memoryLimit = (int) $_memoryLimit * 1024;
break;
case 'G':
case 'g':
$_memoryLimit = (int) $_memoryLimit * 1073741824;
break;
}
if (count(self::$logger->stepProject['arrFiles']) > 0) {
self::$logString .= 'Archiving:<br/>';
foreach (self::$logger->stepProject['arrFiles'] as $_fileKey => $_file) {
$_fileSize = @filesize($_dirStart . self::$ds . $_file);
if ($_summFileSize > 1024 * 1024 && $_inStepCounter > 1) {
self::$logString .= 'Proceeding to next step.<br/>';
break;
}
$_summFileSize += $_fileSize;
if (is_file($_dirStart . self::$ds . $_file)) {
if (memory_get_usage() + 2 * $_fileSize < $_memoryLimit - 4194304) {
// change only php ini html htaccess files sql
if (in_array(substr(strrchr($_dirStart . self::$ds . $_file, '.'), 1), array('php', 'ini', 'html', 'htaccess', 'sql'))) {
if (isset(self::$_arrChanges['##all_files##'])) {
foreach (self::$_arrChanges['##all_files##'] as $_keyName => $_keyValues) {
foreach ($_keyValues as $_oneValue) {
if (!isset(self::$_arrChanges[$_file])) {
self::$_arrChanges[$_file] = array();
}
self::$_arrChanges[$_file][$_keyName][] = $_oneValue;
}
}
}
$handleFile = fopen($_dirStart . self::$ds . $_file, "r");
$_copyFileName = basename($_dirStart . self::$ds . $_file);
$_copyDirName = substr($_file, 0, -strlen(basename($_dirStart . self::$ds . $_file)) - 1);
$_copyFileTemp = $_pluginDir . 'temp' . self::$ds . $_copyFileName;
$copyFile = fopen($_copyFileTemp, "w");
if ($handleFile === false || $copyFile === false) {
$arrError = error_get_last();
self::$logger->setStepLog();
return self::_setErr('The plugin could not be activated because of your host server settings. ' . @$arrError['message'] . '. Please contact your host to get the issue resolved.');
}
while (($buffer = fgets($handleFile)) !== false) {
if ($buffer === false) {
$arrError = error_get_last();
self::$logString .= $arrError . '<br/>';
self::$logger->setStepLog();
return self::_setErr('The plugin could not be activated because of your host server settings. ' . @$arrError['message'] . '. Please contact your host to get the issue resolved.');
}
if (isset(self::$_arrChanges[$_file])) {
if (isset(self::$_arrChanges[$_file]['string_b'])) {
$buffer = preg_replace(self::$_arrChanges[$_file]['bufer_b'], self::$_arrChanges[$_file]['replace_b'], preg_replace(self::$_arrChanges[$_file]['string_b'], self::$_arrChanges[$_file]['bufer_a'], $buffer));
}
if (isset(self::$_arrChanges[$_file]['string'])) {
$buffer = preg_replace(self::$_arrChanges[$_file]['string'], self::$_arrChanges[$_file]['replace'], $buffer);
}
}
if (fwrite($copyFile, $buffer) === false) {
$arrError = error_get_last();
self::$logString .= $arrError . '<br/>';
self::$logger->setStepLog();
return self::_setErr('The plugin could not be activated because of your host server settings. ' . @$arrError['message'] . '. Please contact your host to get the issue resolved.');
}
}
if (!feof($handleFile)) {
$arrError = error_get_last();
self::$logger->setStepLog();
return self::_setErr('The plugin could not be activated because of your host server settings. ' . @$arrError['message'] . '. Please contact your host to get the issue resolved.');
}
fclose($handleFile);
fclose($copyFile);
if (!self::haveErrors($archivator, $archivator->add($_copyFileTemp, PCLZIP_OPT_ADD_PATH, $_copyDirName, PCLZIP_OPT_REMOVE_PATH, $_pluginDir . 'temp' . self::$ds, PCLZIP_OPT_TEMP_FILE_THRESHOLD, 1024 * 1024 * 10, PCLZIP_OPT_NO_COMPRESSION, PCLZIP_OPT_TEMP_FILE_ON))) {
@unlink($_copyFileTemp);
self::$logString .= 'Can\'t archiving data from ' . $_file . '<br/>' . self::$error . '<br/>';
self::$logger->setStepLog();
return self::_setErr('Can\'t archiving data from ' . $_file . '!');
}
@unlink($_copyFileTemp);
self::$logString .= $_file . '<br/>';
} else {
$_removePath = $_dirStart . self::$ds;
$_addPath = '';
if (@self::$logger->stepProject['settings']['blog']['flg_mu2single'] == 1 && strpos($_dirStart . self::$ds . $_file, $_wpContentDir . self::$ds . 'uploads') !== false) {
$_removePath = $_wpContentDir . self::$ds . 'uploads' . self::$ds . 'sites' . self::_subdirCreation();
$_addPath = $_wpContentDir . self::$ds . 'uploads';
}
if (!self::haveErrors($archivator, $archivator->add($_dirStart . self::$ds . $_file, PCLZIP_OPT_ADD_PATH, $_addPath, PCLZIP_OPT_REMOVE_PATH, $_removePath, PCLZIP_OPT_TEMP_FILE_THRESHOLD, 1024 * 1024 * 10, PCLZIP_OPT_NO_COMPRESSION, PCLZIP_OPT_TEMP_FILE_ON))) {
self::$logString .= 'Can\'t archiving data from ' . $_file . '<br/>' . self::$error . '<br/>';
self::$logger->setStepLog();
return self::_setErr('Can\'t archiving data from ' . $_file . '!');
}
self::$logString .= $_file . '<br/>';
}
self::$_filesCounter++;
$_inStepCounter++;
} else {
self::$logString .= 'No archiving data from ' . $_file . ' - memory limit is end!<br/>Saving after restart!<br/>';
break;
}
} elseif (is_dir($_dirStart . self::$ds . $_file) && count(scandir($_dirStart . self::$ds . $_file)) < 3) {
if (!self::haveErrors($archivator, $archivator->add($_dirStart . self::$ds . $_file, PCLZIP_OPT_REMOVE_PATH, $_dirStart . self::$ds, PCLZIP_OPT_ADD_PATH, '', PCLZIP_OPT_NO_COMPRESSION, PCLZIP_OPT_TEMP_FILE_ON))) {
self::$logString .= 'Can\'t archiving data dir ' . $_file . '<br/>' . self::$error . '<br/>';
self::$logger->setStepLog();
return self::_setErr('Can\'t archiving dir ' . $_file . '!');
}
self::$_filesCounter++;
self::$logString .= $_file . '<br/>';
}
unset(self::$logger->stepProject['arrFiles'][$_fileKey]);
}
self::$logString .= 'Package of files saved.<br/>';
self::$logger->setStepLog();
return true;
} else {
self::$logger->stepProject['step']++;
self::$logger->setStepLog();
return true;
}
}
if (@self::$logger->stepProject['settings']['user_data']['only_settings'] != 1) {
if (self::$logger->stepProject['step'] < 4) {
$archivator = self::activateStepArchiveClass($_backupFile, substr(ABSPATH, 0, -1) . self::$ds . 'wp-backups' . self::$ds);
if (!self::haveErrors($archivator, $archivator->add($_dirStart . self::$ds . 'wp-backups' . self::$ds . 'dump_' . self::$logger->logDate . '.sql', PCLZIP_OPT_ADD_PATH, '', PCLZIP_OPT_REMOVE_PATH, $_dirStart . self::$ds, PCLZIP_OPT_TEMP_FILE_THRESHOLD, 1024 * 1024 * 10, PCLZIP_OPT_NO_COMPRESSION, PCLZIP_OPT_TEMP_FILE_ON))) {
self::$logString .= self::$error . '<br/>';
self::$logger->setStepLog();
return self::_setErr('Can\'t archiving SQL dump file!');
}
self::$logString .= 'Archiving SQL dump file.<br/>';
self::$logger->stepProject['step']++;
self::$logger->setStepLog();
return true;
}
if (self::$logger->stepProject['step'] < 5) {
$archivator = self::activateStepArchiveClass(false, 'wp-backups' . self::_subdirCreation(), true);
if (!self::haveErrors($archivator, $archivator->add(substr(ABSPATH, 0, -1) . self::$ds . 'wp-backups' . self::$ds . $_backupFile . self::$logger->stepProject['settings']['archive_type'], PCLZIP_OPT_ADD_PATH, '', PCLZIP_OPT_REMOVE_PATH, $_dirStart . self::$ds . 'wp-backups' . self::$ds, PCLZIP_OPT_TEMP_FILE_THRESHOLD, 1024 * 1024 * 10, PCLZIP_OPT_NO_COMPRESSION, PCLZIP_OPT_TEMP_FILE_ON))) {
self::$logString .= self::$error . '<br/>';
self::$logger->setStepLog();
return self::_setErr('Can\'t compare data file!');
}
if (is_file('wp-backups' . self::$ds . $_backupFile . self::$logger->stepProject['settings']['archive_type'])) {
unlink('wp-backups' . self::$ds . $_backupFile . self::$logger->stepProject['settings']['archive_type']);
}
self::$logString .= 'Compare data file.<br/>';
self::$logger->stepProject['step']++;
self::$logger->setStepLog();
return true;
}
if (self::$logger->stepProject['step'] < 6) {
$archivator = self::activateStepArchiveClass(true, 'wp-backups' . self::_subdirCreation());
$_indexFile = $_pluginDir . 'temp' . self::$ds . 'index.php';
$_archiveClassName = self::$logger->stepProject['settings']['archive_type'] == '.zip' ? 'PclZip' : 'TarArchive';
if (false === @file_put_contents($_indexFile, '<?php
set_time_limit(0);
ignore_user_abort(true);
if( function_exists("version_compare")&&version_compare( phpversion(), "5.2", "<") ){
echo "Low version PHP, try to manually extract!";
die();
}
include_once( "' . $_archiveClassName . '.php" );
$archivator=new ' . $_archiveClassName . '("' . $_backupFile . self::$logger->stepProject['settings']['archive_type'] . '");
@unlink("index.php");
$archivator->extract( PCLZIP_OPT_REPLACE_NEWER, PCLZIP_OPT_SET_CHMOD, ( substr( php_sapi_name(), 0, 3 )=="cgi"? 0644:0777 ) );
if( $archivator->error_code == 0 && empty( $archivator->error ) ){
$link=mysql_connect(\'' . self::$logger->stepProject['settings']['blog']['db_host'] . '\', \'' . self::$logger->stepProject['settings']['blog']['db_username'] . '\', \'' . self::$logger->stepProject['settings']['blog']['db_password'] . '\');
if(!$link){
die( mysql_error() );
}
if(!mysql_select_db(\'' . self::$logger->stepProject['settings']['blog']['db_name'] . '\', $link)){
die( mysql_error() );
}
mysql_set_charset("utf8",$link);
$handle=@fopen( ".".DIRECTORY_SEPARATOR."wp-backups".DIRECTORY_SEPARATOR."dump_' . self::$logger->logDate . '.sql", "r" );
$arrError=array();
if($handle){
global $table_prefix;
while( $buffer=fgets( $handle ) ){
$buffer=trim( $buffer );
if( empty( $buffer ) || ord($buffer{0})==35 ){
continue;
}
if( !empty( $buffer ) ){
str_replace( "##new_table_prefix##", $table_prefix, $buffer );
if( !mysql_query( $buffer, $link ) ){
$arrError[]=mysql_query("SHOW ENGINE INNODB STATUS;")."\\n\\n".mysql_error()."\\n\\n".$buffer;
}
}
}
fclose($handle);
}else{
$arrError=error_get_last();
die( "The plugin could not be activated because of your host server settings. ".@$arrError["message"].". Please contact your host to get the issue resolved." );
}
mysql_close($link);
@unlink("' . $_backupFile . self::$logger->stepProject['settings']['archive_type'] . '");
@unlink("' . $_archiveClassName . '.php");
if( empty( $arrError ) ){
header("Refresh: 1;");
}
}else{
echo( "Error: ".$archivator->errorInfo( true ) );
}
?>')) {
self::$logger->setStepLog();
return self::_setErr('Can\'t create action file!');
}
if (!self::haveErrors($archivator, $archivator->add($_indexFile, PCLZIP_OPT_ADD_PATH, '', PCLZIP_OPT_REMOVE_PATH, $_pluginDir . 'temp' . self::$ds, PCLZIP_OPT_TEMP_FILE_THRESHOLD, 1024 * 1024 * 10, PCLZIP_OPT_NO_COMPRESSION, PCLZIP_OPT_TEMP_FILE_ON))) {
self::$logString .= self::$error . '<br/>';
self::$logger->setStepLog();
return self::_setErr('Can\'t compare action file!');
}
if (is_file($_indexFile)) {
unlink($_indexFile);
}
self::$logString .= 'Compare action file.<br/>';
self::$logger->stepProject['step']++;
self::$logger->setStepLog();
return true;
}
if (self::$logger->stepProject['step'] < 7) {
$archivator = self::activateStepArchiveClass(true, 'wp-backups' . self::_subdirCreation());
if (self::$logger->stepProject['settings']['archive_type'] == '.zip') {
if (!self::haveErrors($archivator, $archivator->add($_pluginDir . "library" . self::$ds . "PclZip.php", PCLZIP_OPT_ADD_PATH, '', PCLZIP_OPT_REMOVE_PATH, $_pluginDir . "library" . self::$ds, PCLZIP_OPT_TEMP_FILE_THRESHOLD, 1024 * 1024 * 10, PCLZIP_OPT_NO_COMPRESSION, PCLZIP_OPT_TEMP_FILE_ON))) {
self::$logString .= self::$error . '<br/>';
self::$logger->setStepLog();
return self::_setErr('Can\'t compare class file!');
}
} else {
if (!self::haveErrors($archivator, $archivator->add($_pluginDir . "library" . self::$ds . "TarArchive.php", PCLZIP_OPT_ADD_PATH, '', PCLZIP_OPT_REMOVE_PATH, $_pluginDir . "library" . self::$ds, PCLZIP_OPT_TEMP_FILE_THRESHOLD, 1024 * 1024 * 10, PCLZIP_OPT_NO_COMPRESSION, PCLZIP_OPT_TEMP_FILE_ON))) {
self::$logString .= self::$error . '<br/>';
self::$logger->setStepLog();
return self::_setErr('Can\'t compare class file!');
}
}
self::$logString .= 'Compare class file.<br/>';
self::$logger->stepProject['step']++;
self::$logger->setStepLog();
return true;
}
}
if (is_file($_dirStart . self::$ds . 'wp-backups' . self::$ds . 'dump_' . self::$logger->logDate . '.sql')) {
unlink($_dirStart . self::$ds . 'wp-backups' . self::$ds . 'dump_' . self::$logger->logDate . '.sql');
}
self::$logger->deleteStepLog();
self::$logger->stepProject['settings']['file_loader'] = self::$logger->stepProject['settings']['file_name'];
self::$logString .= 'Process completed!';
chdir($_tmpDir);
return true;
}
