<?php
/**
* @version $Id: twitter.auth.php 2177 2019-03-21 21:50:58Z IOS $
* @package Elxis
* @subpackage Component User / Authentication
* @copyright Copyright (c) 2006-2019 Elxis CMS (http://www.elxis.org). All rights reserved.
* @license Elxis Public License ( http://www.elxis.org/elxis-public-license.html )
* @author Elxis Team ( http://www.elxis.org )
* @description Elxis CMS is free software. Read the license for copyright notices and details
*/
defined('_ELXIS_') or die ('Direct access to this location is not allowed');
class twitterAuthentication {
private $consumer_key;
private $consumer_secret;
/********************/
/* MAGIC CONTRUCTOR */
/********************/
public function __construct($params) {
$this->consumer_key = trim($params->get('consumer_key'));
$this->consumer_secret = trim($params->get('consumer_secret'));
}
/*******************************/
/* AUTHENTICATE A TWITTER USER */
/*******************************/
public function authenticate(&$response, $options=array()) {
if (($this->consumer_key == '') || ($this->consumer_secret == '')) {
$response->errormsg = 'Required Twitter consumer parameters are empty!';
return false;
}
include(ELXIS_PATH.'/components/com_user/auth/twitter/includes/EpiOAuth.php');
include(ELXIS_PATH.'/components/com_user/auth/twitter/includes/EpiTwitter.php');
$twitter = new EpiTwitter($this->consumer_key, $this->consumer_secret);
if (isset($_GET['oauth_token']) || (isset($_COOKIE['twitter_oauth_token']) && isset($_COOKIE['twitter_oauth_token_secret']))) {
if (!isset($_COOKIE['twitter_oauth_token']) || !isset($_COOKIE['twitter_oauth_token_secret'])) {
$twitter->setToken($_GET['oauth_token']);
$token = $twitter->getAccessToken();
setcookie('twitter_oauth_token', $token->oauth_token);
setcookie('twitter_oauth_token_secret', $token->oauth_token_secret);
$twitter->setToken($token->oauth_token, $token->oauth_token_secret);
} else {
$twitter->setToken($_COOKIE['twitter_oauth_token'], $_COOKIE['twitter_oauth_token_secret']);
}
$user = $twitter->get_accountVerify_credentials();
$response->uname = $user->screen_name;
$name = trim($user->name);
if ($name != '') {
$parts = preg_split('/\s/', $name, 2, PREG_SPLIT_NO_EMPTY);
$response->firstname = $parts[0];
if (isset($parts[1])) {
$response->lastname = $parts[1];
}
}
$response->email = '';
$response->uid = 0;
$response->gid = 6;
if (trim($user->profile_image_url_https) != '') {
$response->avatar = $user->profile_image_url_https;
} else {
$response->avatar = $user->profile_image_url;
}
return true;
} elseif (isset($_GET['denied'])) {
$response->errormsg = 'You must sign in through twitter first';
return false;
} else {
$response->errormsg = 'You are not logged in';
return false;
}
}
/*************************/
/* SHOW GMAIL LOGIN FORM */
/*************************/
public function loginForm() {
$eLang = eFactory::getLang();
$elxis = eFactory::getElxis();
$eDoc = eFactory::getDocument();
$title = sprintf($eLang->get('LOGIN_WITH'), 'Twitter');
$eDoc->setTitle($eLang->get('LOGIN').' - Twitter');
$eDoc->setDescription($title);
if (($this->consumer_key == '') || ($this->consumer_secret == '')) {
$eDoc->setTitle($eLang->get('ERROR').' - Twitter login');
echo '<div class="elx5_error">Required Twitter consumer parameters are empty!</div>'."\n";
return;
}
include(ELXIS_PATH.'/components/com_user/auth/twitter/includes/EpiOAuth.php');
include(ELXIS_PATH.'/components/com_user/auth/twitter/includes/EpiTwitter.php');
$twitter = new EpiTwitter($this->consumer_key, $this->consumer_secret);
$link = $twitter->getAuthorizationUrl();
$elxis->redirect($link);
}
/***********************/
/* EXECUTE CUSTOM TASK */
/***********************/
public function runTask($etask) {
if (ob_get_length() > 0) { @ob_end_clean(); }
header('content-type:text/plain; charset=utf-8');
echo 'Invalid request';
exit;
}
/***************************************/
/* CUSTOM ACTIONS TO PERFORM ON LOGOUT */
/***************************************/
public function logout() {
$ts = time() - 100000;
if (isset($_COOKIE['twitter_oauth_token'])) {
setcookie('twitter_oauth_token', '', $ts);
}
if (isset($_COOKIE['twitter_oauth_token_secret'])) {
setcookie('twitter_oauth_token_secret', '', $ts);
}
}
}
?>