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<?php
/**
* @package Joomla.Installation
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
jimport('joomla.filesystem.file');
jimport('joomla.filesystem.path');
/**
* Filesystem configuration model for the Joomla Core Installer.
*
* @package Joomla.Installation
* @since 1.6
*/
class JInstallationModelFilesystem extends JModelLegacy
{
/**
* Find the ftp filesystem root for a given user/pass pair.
*
* @param array $options Configuration options.
*
* @return mixed Filesystem root for given FTP user, or boolean false if not found.
* @since 1.6
*/
public function detectFtpRoot($options)
{
// Get the options as a JObject for easier handling.
$options = JArrayHelper::toObject($options, 'JObject');
jimport('joomla.client.ftp');
// Connect and login to the FTP server.
// Use binary transfer mode to be able to compare files.
@$ftp = JFTP::getInstance($options->get('ftp_host'), $options->get('ftp_port'), array('type' => FTP_BINARY));
// Check to make sure FTP is connected and authenticated.
if (!$ftp->isConnected()) {
$this->setError($options->get('ftp_host').':'.$options->get('ftp_port').' '.JText::_('INSTL_FTP_NOCONNECT'));
return false;
}
if (!$ftp->login($options->get('ftp_user'), $options->get('ftp_pass'))) {
$this->setError(JText::_('INSTL_FTP_NOLOGIN'));
return false;
}
// Get the current working directory from the FTP server.
$cwd = $ftp->pwd();
if ($cwd === false) {
$this->setError(JText::_('INSTL_FTP_NOPWD'));
return false;
}
$cwd = rtrim($cwd, '/');
// Get a list of folders in the current working directory.
$cwdFolders = $ftp->listDetails(null, 'folders');
if ($cwdFolders === false || count($cwdFolders) == 0) {
$this->setError(JText::_('INSTL_FTP_NODIRECTORYLISTING'));
return false;
}
// Get just the folder names from the list of folder data.
for ($i = 0, $n = count($cwdFolders); $i < $n; $i++)
{
$cwdFolders[$i] = $cwdFolders[$i]['name'];
}
// Check to see if Joomla is installed at the FTP current working directory.
$paths = array();
$known = array('administrator', 'components', 'installation', 'language', 'libraries', 'plugins');
if (count(array_diff($known, $cwdFolders)) == 0) {
$paths[] = $cwd.'/';
}
// Search through the segments of JPATH_SITE looking for root possibilities.
$parts = explode(DIRECTORY_SEPARATOR, JPATH_SITE);
$tmp = '';
for ($i = count($parts) - 1; $i >= 0; $i--)
{
$tmp = '/'.$parts[$i].$tmp;
if (in_array($parts[$i], $cwdFolders)) {
$paths[] = $cwd.$tmp;
}
}
// Check all possible paths for the real Joomla installation by comparing version files.
$rootPath = false;
$checkValue = file_get_contents(JPATH_LIBRARIES . '/cms/version/version.php');
foreach ($paths as $tmp)
{
$filePath = rtrim($tmp, '/') . '/libraries/cms/version/version.php';
$buffer = null;
@ $ftp->read($filePath, $buffer);
if ($buffer == $checkValue) {
$rootPath = $tmp;
break;
}
}
// Close the FTP connection.
$ftp->quit();
// Return an error if no root path was found.
if ($rootPath === false) {
$this->setError(JText::_('INSTL_FTP_UNABLE_DETECT_ROOT_FOLDER'));
return false;
}
return $rootPath;
}
/**
* Verify the FTP settings as being functional and correct.
*
* @param array $options Configuration options.
*
* @return mixed Filesystem root for given FTP user, or boolean false if not found.
* @since 1.6
*/
public function verifyFtpSettings($options)
{
// Get the options as a JObject for easier handling.
$options = JArrayHelper::toObject($options, 'JObject');
jimport('joomla.client.ftp');
// Connect and login to the FTP server.
@$ftp = JFTP::getInstance($options->get('ftp_host'), $options->get('ftp_port'));
// Check to make sure FTP is connected and authenticated.
if (!$ftp->isConnected()) {
$this->setError(JText::_('INSTL_FTP_NOCONNECT'));
return false;
}
if (!$ftp->login($options->get('ftp_user'), $options->get('ftp_pass'))) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOLOGIN'));
return false;
}
// Since the root path will be trimmed when it gets saved to configuration.php,
// we want to test with the same value as well.
$root = rtrim($options->get('ftp_root'), '/');
// Verify PWD function
if ($ftp->pwd() === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOPWD'));
return false;
}
// Verify root path exists
if (!$ftp->chdir($root)) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOROOT'));
return false;
}
// Verify NLST function
if (($rootList = $ftp->listNames()) === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NONLST'));
return false;
}
// Verify LIST function
if ($ftp->listDetails() === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOLIST'));
return false;
}
// Verify SYST function
if ($ftp->syst() === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOSYST'));
return false;
}
// Verify valid root path, part one
$checkList = array('robots.txt', 'index.php');
if (count(array_diff($checkList, $rootList))) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_INVALIDROOT'));
return false;
}
// Verify RETR function
$buffer = null;
if ($ftp->read($root.'/libraries/cms/version/version.php', $buffer) === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NORETR'));
return false;
}
// Verify valid root path, part two
$checkValue = file_get_contents(JPATH_ROOT.'/libraries/cms/version/version.php');
if ($buffer !== $checkValue) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_INVALIDROOT'));
return false;
}
// Verify STOR function
if ($ftp->create($root.'/ftp_testfile') === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOSTOR'));
return false;
}
// Verify DELE function
if ($ftp->delete($root.'/ftp_testfile') === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NODELE'));
return false;
}
// Verify MKD function
if ($ftp->mkdir($root.'/ftp_testdir') === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOMKD'));
return false;
}
// Verify RMD function
if ($ftp->delete($root.'/ftp_testdir') === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NORMD'));
return false;
}
$ftp->quit();
return true;
}
/**
* Check the webserver user permissions for writing files/folders
*
* @return boolean True if correct permissions exist
*
* @since 1.5
*/
public static function checkPermissions()
{
if (!is_writable(JPATH_ROOT.'/tmp')) {
return false;
}
if (!mkdir(JPATH_ROOT.'/tmp/test', 0755)) {
return false;
}
if (!copy(JPATH_ROOT.'/tmp/index.html', JPATH_ROOT.'tmp/test/index.html')) {
return false;
}
if (!chmod(JPATH_ROOT.'/tmp/test/index.html', 0777)) {
return false;
}
if (!unlink(JPATH_ROOT.'/tmp/test/index.html')) {
return false;
}
if (!rmdir(JPATH_ROOT.'/tmp/test')) {
return false;
}
return true;
}
/**
* Verify the FTP configuration values are valid
*
* @param string $user Username of the ftp user to determine root for
* @param string $pass Password of the ftp user to determine root for
* @param string $root
* @param string $host
* @param string $port
*
* @return mixed Boolean true on success or JError object on fail
* @since 1.5
*/
public function checkSettings($user, $pass, $root, $host = '127.0.0.1', $port = '21')
{
jimport('joomla.client.ftp');
$ftp = JFTP::getInstance($host, $port);
// Since the root path will be trimmed when it gets saved to configuration.php, we want to test with the same value as well
$root = rtrim($root, '/');
// Verify connection
if (!$ftp->isConnected()) {
$this->setError('kiki'.JText::_('INSTL_FTP_NOCONNECT'));
return false;
}
// Verify username and password
if (!$ftp->login($user, $pass)) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOLOGIN'));
return false;
}
// Verify PWD function
if ($ftp->pwd() === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOPWD'));
return false;
}
// Verify root path exists
if (!$ftp->chdir($root)) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOROOT'));
return false;
}
// Verify NLST function
if (($rootList = $ftp->listNames()) === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NONLST'));
return false;
}
// Verify LIST function
if ($ftp->listDetails() === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOLIST'));
return false;
}
// Verify SYST function
if ($ftp->syst() === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOSYST'));
return false;
}
// Verify valid root path, part one
$checkList = array('CHANGELOG.php', 'COPYRIGHT.php', 'index.php', 'INSTALL.php', 'LICENSE.php');
if (count(array_diff($checkList, $rootList))) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_INVALIDROOT'));
return false;
}
// Verify RETR function
$buffer = null;
if ($ftp->read($root.'/libraries/cms/version/version.php', $buffer) === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NORETR'));
return false;
}
// Verify valid root path, part two
$checkValue = file_get_contents(JPATH_ROOT.'/libraries/cms/version/version.php');
if ($buffer !== $checkValue) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_INVALIDROOT'));
return false;
}
// Verify STOR function
if ($ftp->create($root.'/ftp_testfile') === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOSTOR'));
return false;
}
// Verify DELE function
if ($ftp->delete($root.'/ftp_testfile') === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NODELE'));
return false;
}
// Verify MKD function
if ($ftp->mkdir($root.'/ftp_testdir') === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NOMKD'));
return false;
}
// Verify RMD function
if ($ftp->delete($root.'/ftp_testdir') === false) {
$ftp->quit();
$this->setError(JText::_('INSTL_FTP_NORMD'));
return false;
}
return true;
}
/**
* Set default folder permissions
*
* @param string $path The full file path
* @param string $buffer The buffer to write
*
* @return boolean True on success
* @since 1.5
*/
public function setFolderPermissions($folder, $options)
{
// Get the options as a JObject for easier handling.
$options = JArrayHelper::toObject($options, 'JObject');
// Initialise variables.
$ftpFlag = false;
$ftpRoot = $options->ftpRoot;
// Determine if the path is "chmodable".
if (!JPath::canChmod(JPath::clean(JPATH_SITE . '/' . $folder))) {
$ftpFlag = true;
}
// Do NOT use ftp if it is not enabled
if (empty($options->ftp_enable)) {
$ftpFlag = false;
}
if ($ftpFlag == true) {
// Connect the FTP client
jimport('joomla.client.ftp');
$client = JFTP::getInstance($options['ftp_host'], $options['ftp_port']);
$client->login($options['ftp_user'], $options['ftp_pass']);
//Translate path for the FTP account
$path = JPath::clean($ftpRoot."/".$folder);
/*
* chmod using ftp
*/
if (!$client->chmod($path, '0755')) {
$ret = false;
}
$client->quit();
$ret = true;
} else {
$path = JPath::clean(JPATH_SITE . '/' . $folder);
if (!@ chmod($path, octdec('0755'))) {
$ret = false;
} else {
$ret = true;
}
}
return $ret;
}
/**
* Inserts ftp variables to mainframe registry
* Needed to activate ftp layer for file operations in safe mode
*
* @param array $vars The post values
*
* @return void
*/
public function setFTPCfg($vars)
{
$app = JFactory::getApplication();
$arr = array();
$arr['ftp_enable'] = $vars['ftp_enable'];
$arr['ftp_user'] = $vars['ftp_user'];
$arr['ftp_pass'] = $vars['ftp_pass'];
$arr['ftp_root'] = $vars['ftp_root'];
$arr['ftp_host'] = $vars['ftp_host'];
$arr['ftp_port'] = $vars['ftp_port'];
$app->setCfg($arr, 'config');
}
function _chmod($path, $mode)
{
$app = JFactory::getApplication();
$ret = false;
// Initialise variables.
$ftpFlag = true;
$ftpRoot = $app->getCfg('ftp_root');
// Do NOT use ftp if it is not enabled
if ($app->getCfg(ftp_enable) != 1) {
$ftpFlag = false;
}
if ($ftpFlag == true) {
// Connect the FTP client
jimport('joomla.client.ftp');
$ftp = JFTP::getInstance($app->getCfg('ftp_host'), $app->getCfg('ftp_port'));
$ftp->login($app->getCfg('ftp_user'), $app->getCfg('ftp_pass'));
//Translate the destination path for the FTP account
$path = JPath::clean(str_replace(JPATH_SITE, $ftpRoot, $path), '/');
// do the ftp chmod
if (!$ftp->chmod($path, $mode)) {
// FTP connector throws an error
return false;
}
$ftp->quit();
$ret = true;
} else {
$ret = @ chmod($path, $mode);
}
return $ret;
}
}