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alazhar
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libraries/joomla/client/helper.php
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240
libraries/joomla/client/helper.php
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<?php
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/**
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* @package Joomla.Platform
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* @subpackage Client
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*
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* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE
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*/
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defined('JPATH_PLATFORM') or die;
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/**
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* Client helper class
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*
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* @package Joomla.Platform
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* @subpackage Client
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* @since 11.1
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*/
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class JClientHelper
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{
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/**
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* Method to return the array of client layer configuration options
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*
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* @param string $client Client name, currently only 'ftp' is supported
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* @param boolean $force Forces re-creation of the login credentials. Set this to
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* true if login credentials in the session storage have changed
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*
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* @return array Client layer configuration options, consisting of at least
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* these fields: enabled, host, port, user, pass, root
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*
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* @since 11.1
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*/
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public static function getCredentials($client, $force = false)
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{
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static $credentials = array();
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$client = strtolower($client);
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if (!isset($credentials[$client]) || $force)
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{
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$config = JFactory::getConfig();
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// Fetch the client layer configuration options for the specific client
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switch ($client)
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{
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case 'ftp':
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$options = array(
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'enabled' => $config->get('ftp_enable'),
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'host' => $config->get('ftp_host'),
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'port' => $config->get('ftp_port'),
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'user' => $config->get('ftp_user'),
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'pass' => $config->get('ftp_pass'),
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'root' => $config->get('ftp_root'));
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break;
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default:
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$options = array('enabled' => false, 'host' => '', 'port' => '', 'user' => '', 'pass' => '', 'root' => '');
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break;
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}
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// If user and pass are not set in global config lets see if they are in the session
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if ($options['enabled'] == true && ($options['user'] == '' || $options['pass'] == ''))
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{
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$session = JFactory::getSession();
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$options['user'] = $session->get($client . '.user', null, 'JClientHelper');
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$options['pass'] = $session->get($client . '.pass', null, 'JClientHelper');
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}
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// If user or pass are missing, disable this client
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if ($options['user'] == '' || $options['pass'] == '')
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{
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$options['enabled'] = false;
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}
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// Save the credentials for later use
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$credentials[$client] = $options;
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}
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return $credentials[$client];
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}
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/**
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* Method to set client login credentials
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*
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* @param string $client Client name, currently only 'ftp' is supported
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* @param string $user Username
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* @param string $pass Password
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*
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* @return boolean True if the given login credentials have been set and are valid
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*
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* @since 11.1
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*/
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public static function setCredentials($client, $user, $pass)
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{
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$return = false;
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$client = strtolower($client);
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// Test if the given credentials are valid
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switch ($client)
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{
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case 'ftp':
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$config = JFactory::getConfig();
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$options = array('enabled' => $config->get('ftp_enable'), 'host' => $config->get('ftp_host'), 'port' => $config->get('ftp_port'));
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if ($options['enabled'])
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{
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$ftp = JClientFtp::getInstance($options['host'], $options['port']);
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// Test the connection and try to log in
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if ($ftp->isConnected())
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{
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if ($ftp->login($user, $pass))
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{
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$return = true;
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}
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$ftp->quit();
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}
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}
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break;
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default:
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break;
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}
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if ($return)
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{
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// Save valid credentials to the session
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$session = JFactory::getSession();
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$session->set($client . '.user', $user, 'JClientHelper');
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$session->set($client . '.pass', $pass, 'JClientHelper');
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// Force re-creation of the data saved within JClientHelper::getCredentials()
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self::getCredentials($client, true);
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}
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return $return;
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}
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/**
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* Method to determine if client login credentials are present
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*
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* @param string $client Client name, currently only 'ftp' is supported
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*
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* @return boolean True if login credentials are available
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*
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* @since 11.1
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*/
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public static function hasCredentials($client)
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{
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$return = false;
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$client = strtolower($client);
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// Get (unmodified) credentials for this client
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switch ($client)
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{
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case 'ftp':
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$config = JFactory::getConfig();
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$options = array('enabled' => $config->get('ftp_enable'), 'user' => $config->get('ftp_user'), 'pass' => $config->get('ftp_pass'));
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break;
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default:
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$options = array('enabled' => false, 'user' => '', 'pass' => '');
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break;
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}
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if ($options['enabled'] == false)
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{
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// The client is disabled in global config, so let's pretend we are OK
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$return = true;
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}
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elseif ($options['user'] != '' && $options['pass'] != '')
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{
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// Login credentials are available in global config
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$return = true;
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}
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else
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{
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// Check if login credentials are available in the session
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$session = JFactory::getSession();
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$user = $session->get($client . '.user', null, 'JClientHelper');
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$pass = $session->get($client . '.pass', null, 'JClientHelper');
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if ($user != '' && $pass != '')
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{
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$return = true;
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}
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}
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return $return;
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}
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/**
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* Determine whether input fields for client settings need to be shown
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*
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* If valid credentials were passed along with the request, they are saved to the session.
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* This functions returns an exception if invalid credentials have been given or if the
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* connection to the server failed for some other reason.
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*
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* @param string $client The name of the client.
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*
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* @return mixed True, if FTP settings; JError if using legacy tree.
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*
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* @since 11.1
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* @throws InvalidArgumentException if credentials invalid
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*/
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public static function setCredentialsFromRequest($client)
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{
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// Determine whether FTP credentials have been passed along with the current request
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$input = JFactory::getApplication()->input;
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$user = $input->post->getString('username', null);
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$pass = $input->post->getString('password', null);
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if ($user != '' && $pass != '')
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{
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// Add credentials to the session
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if (self::setCredentials($client, $user, $pass))
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{
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$return = false;
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}
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else
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{
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if (class_exists('JError'))
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{
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$return = JError::raiseWarning('SOME_ERROR_CODE', JText::_('JLIB_CLIENT_ERROR_HELPER_SETCREDENTIALSFROMREQUEST_FAILED'));
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}
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else
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{
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throw new InvalidArgumentException('Invalid user credentials');
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}
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}
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}
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else
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{
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// Just determine if the FTP input fields need to be shown
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$return = !self::hasCredentials('ftp');
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}
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return $return;
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}
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}
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