Current File : /home/admin/public_html/old/plugins/authentication/gmail/gmail.php
<?php
/**
* @package Joomla.Plugin
* @subpackage Authentication.gmail
*
* @copyright Copyright (C) 2005 - 2015 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
/**
* GMail Authentication Plugin
*
* @since 1.5
*/
class PlgAuthenticationGMail extends JPlugin
{
/**
* This method should handle any authentication and report back to the subject
*
* @param array $credentials Array holding the user credentials
* @param array $options Array of extra options
* @param object &$response Authentication response object
*
* @return boolean
*
* @since 1.5
*/
public function onUserAuthenticate($credentials, $options, &$response)
{
// Load plugin language
$this->loadLanguage();
// No backend authentication
if (JFactory::getApplication()->isAdmin() && !$this->params->get('backendLogin', 0))
{
return;
}
$success = 0;
// Check if we have curl or not
if (function_exists('curl_init'))
{
// Check if we have a username and password
if (strlen($credentials['username']) && strlen($credentials['password']))
{
$blacklist = explode(',', $this->params->get('user_blacklist', ''));
// Check if the username isn't blacklisted
if (!in_array($credentials['username'], $blacklist))
{
$suffix = $this->params->get('suffix', '');
$applysuffix = $this->params->get('applysuffix', 0);
$offset = strpos($credentials['username'], '@');
// Check if we want to do suffix stuff, typically for Google Apps for Your Domain
if ($suffix && $applysuffix)
{
if ($applysuffix == 1 && $offset === false)
{
// Apply suffix if missing
$credentials['username'] .= '@' . $suffix;
}
elseif ($applysuffix == 2)
{
// Always use suffix
if ($offset)
{
// If we already have an @, get rid of it and replace it
$credentials['username'] = substr($credentials['username'], 0, $offset);
}
$credentials['username'] .= '@' . $suffix;
}
}
$curl = curl_init('https://mail.google.com/mail/feed/atom');
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, $this->params->get('verifypeer', 1));
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($curl, CURLOPT_USERPWD, $credentials['username'] . ':' . $credentials['password']);
curl_exec($curl);
$code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
switch ($code)
{
case 200 :
$message = JText::_('JGLOBAL_AUTH_ACCESS_GRANTED');
$success = 1;
break;
case 401 :
$message = JText::_('JGLOBAL_AUTH_ACCESS_DENIED');
break;
default :
$message = JText::_('JGLOBAL_AUTH_UNKNOWN_ACCESS_DENIED');
break;
}
}
else
{
// The username is black listed
$message = JText::_('JGLOBAL_AUTH_USER_BLACKLISTED');
}
}
else
{
$message = JText::_('JGLOBAL_AUTH_USER_BLACKLISTED');
}
}
else
{
$message = JText::_('JGLOBAL_AUTH_CURL_NOT_INSTALLED');
}
$response->type = 'GMail';
if ($success)
{
if (strpos($credentials['username'], '@') === false)
{
if ($suffix)
{
// If there is a suffix then we want to apply it
$email = $credentials['username'] . '@' . $suffix;
}
else
{
// If there isn't a suffix just use the default gmail one
$email = $credentials['username'] . '@gmail.com';
}
}
else
{
// The username looks like an email address (probably is) so use that
$email = $credentials['username'];
}
// Extra security checks with existing local accounts
$db = JFactory::getDbo();
$localUsernameChecks = array(strstr($email, '@', true), $email);
$query = $db->getQuery(true)
->select('id, activation, username, email, block')
->from('#__users')
->where('username IN(' . implode(',', array_map(array($db, 'quote'), $localUsernameChecks)) . ')'
. ' OR email = ' . $db->quote($email)
);
$db->setQuery($query);
if ($localUsers = $db->loadObjectList())
{
foreach ($localUsers as $localUser)
{
// Local user exists with same username but different email address
if ($email != $localUser->email)
{
$response->status = JAuthentication::STATUS_FAILURE;
$response->error_message = JText::sprintf('JGLOBAL_AUTH_FAILED', JText::_('PLG_GMAIL_ERROR_LOCAL_USERNAME_CONFLICT'));
return;
}
else
{
// Existing user disabled locally
if ($localUser->block || !empty($localUser->activation))
{
$response->status = JAuthentication::STATUS_FAILURE;
$response->error_message = JText::_('JGLOBAL_AUTH_ACCESS_DENIED');
return;
}
// We will always keep the local username for existing accounts
$credentials['username'] = $localUser->username;
break;
}
}
}
elseif (JFactory::getApplication()->isAdmin())
// We wont' allow backend access without local account
{
$response->status = JAuthentication::STATUS_FAILURE;
$response->error_message = JText::_('JERROR_LOGIN_DENIED');
return;
}
$response->status = JAuthentication::STATUS_SUCCESS;
$response->error_message = '';
$response->email = $email;
// Reset the username to what we ended up using
$response->username = $credentials['username'];
$response->fullname = $credentials['username'];
}
else
{
$response->status = JAuthentication::STATUS_FAILURE;
$response->error_message = JText::sprintf('JGLOBAL_AUTH_FAILED', $message);
}
}
}