milfs/librerias/hybridauth/Hybrid/Auth.php

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<?php
/**
* HybridAuth
* http://hybridauth.sourceforge.net | http://github.com/hybridauth/hybridauth
* (c) 2009-2015, HybridAuth authors | http://hybridauth.sourceforge.net/licenses.html
*/
/**
* Hybrid_Auth class
*
* Hybrid_Auth class provide a simple way to authenticate users via OpenID and OAuth.
*
* Generally, Hybrid_Auth is the only class you should instanciate and use throughout your application.
*/
class Hybrid_Auth {
public static $version = "2.6.0";
/**
* Configuration array
* @var array
*/
public static $config = array();
/**
* Auth cache
* @var Hybrid_Storage
*/
public static $store = null;
/**
* Error pool
* @var Hybrid_Error
*/
public static $error = null;
/**
* Logger
* @var Hybrid_Logger
*/
public static $logger = null;
/**
* Try to start a new session of none then initialize Hybrid_Auth
*
* Hybrid_Auth constructor will require either a valid config array or
* a path for a configuration file as parameter. To know more please
* refer to the Configuration section:
* http://hybridauth.sourceforge.net/userguide/Configuration.html
*
* @param array $config Configuration array or path to a configratuion file
*/
function __construct($config) {
Hybrid_Auth::initialize($config);
}
/**
* Try to initialize Hybrid_Auth with given $config hash or file
*
* @param array $config Configuration array or path to a configratuion file
* @return void
* @throws Exception
*/
public static function initialize($config) {
if (!is_array($config) && !file_exists($config)) {
throw new Exception("Hybriauth config does not exist on the given path.", 1);
}
if (!is_array($config)) {
$config = include $config;
}
// build some need'd paths
$config["path_base"] = realpath(dirname(__FILE__)) . "/";
$config["path_libraries"] = $config["path_base"] . "thirdparty/";
$config["path_resources"] = $config["path_base"] . "resources/";
$config["path_providers"] = $config["path_base"] . "Providers/";
// reset debug mode
if (!isset($config["debug_mode"])) {
$config["debug_mode"] = false;
$config["debug_file"] = null;
}
# load hybridauth required files, a autoload is on the way...
require_once $config["path_base"] . "Error.php";
require_once $config["path_base"] . "Exception.php";
require_once $config["path_base"] . "Logger.php";
require_once $config["path_base"] . "Provider_Adapter.php";
require_once $config["path_base"] . "Provider_Model.php";
require_once $config["path_base"] . "Provider_Model_OpenID.php";
require_once $config["path_base"] . "Provider_Model_OAuth1.php";
require_once $config["path_base"] . "Provider_Model_OAuth2.php";
require_once $config["path_base"] . "User.php";
require_once $config["path_base"] . "User_Profile.php";
require_once $config["path_base"] . "User_Contact.php";
require_once $config["path_base"] . "User_Activity.php";
if (!class_exists("Hybrid_Storage", false)) {
require_once $config["path_base"] . "Storage.php";
}
// hash given config
Hybrid_Auth::$config = $config;
// instance of log mng
Hybrid_Auth::$logger = new Hybrid_Logger();
// instance of errors mng
Hybrid_Auth::$error = new Hybrid_Error();
// start session storage mng
Hybrid_Auth::$store = new Hybrid_Storage();
Hybrid_Logger::info("Enter Hybrid_Auth::initialize()");
Hybrid_Logger::info("Hybrid_Auth::initialize(). PHP version: " . PHP_VERSION);
Hybrid_Logger::info("Hybrid_Auth::initialize(). Hybrid_Auth version: " . Hybrid_Auth::$version);
Hybrid_Logger::info("Hybrid_Auth::initialize(). Hybrid_Auth called from: " . Hybrid_Auth::getCurrentUrl());
// PHP Curl extension [http://www.php.net/manual/en/intro.curl.php]
if (!function_exists('curl_init')) {
Hybrid_Logger::error('Hybridauth Library needs the CURL PHP extension.');
throw new Exception('Hybridauth Library needs the CURL PHP extension.');
}
// PHP JSON extension [http://php.net/manual/en/book.json.php]
if (!function_exists('json_decode')) {
Hybrid_Logger::error('Hybridauth Library needs the JSON PHP extension.');
throw new Exception('Hybridauth Library needs the JSON PHP extension.');
}
// session.name
if (session_name() != "PHPSESSID") {
Hybrid_Logger::info('PHP session.name diff from default PHPSESSID. http://php.net/manual/en/session.configuration.php#ini.session.name.');
}
// safe_mode is on
if (ini_get('safe_mode')) {
Hybrid_Logger::info('PHP safe_mode is on. http://php.net/safe-mode.');
}
// open basedir is on
if (ini_get('open_basedir')) {
Hybrid_Logger::info('PHP open_basedir is on. http://php.net/open-basedir.');
}
Hybrid_Logger::debug("Hybrid_Auth initialize. dump used config: ", serialize($config));
Hybrid_Logger::debug("Hybrid_Auth initialize. dump current session: ", Hybrid_Auth::storage()->getSessionData());
Hybrid_Logger::info("Hybrid_Auth initialize: check if any error is stored on the endpoint...");
if (Hybrid_Error::hasError()) {
$m = Hybrid_Error::getErrorMessage();
$c = Hybrid_Error::getErrorCode();
$p = Hybrid_Error::getErrorPrevious();
Hybrid_Logger::error("Hybrid_Auth initialize: A stored Error found, Throw an new Exception and delete it from the store: Error#$c, '$m'");
Hybrid_Error::clearError();
// try to provide the previous if any
// Exception::getPrevious (PHP 5 >= 5.3.0) http://php.net/manual/en/exception.getprevious.php
if (version_compare(PHP_VERSION, '5.3.0', '>=') && ($p instanceof Exception)) {
throw new Exception($m, $c, $p);
} else {
throw new Exception($m, $c);
}
}
Hybrid_Logger::info("Hybrid_Auth initialize: no error found. initialization succeed.");
}
/**
* Hybrid storage system accessor
*
* Users sessions are stored using HybridAuth storage system ( HybridAuth 2.0 handle PHP Session only) and can be accessed directly by
* Hybrid_Auth::storage()->get($key) to retrieves the data for the given key, or calling
* Hybrid_Auth::storage()->set($key, $value) to store the key => $value set.
*
* @return Hybrid_Storage
*/
public static function storage() {
return Hybrid_Auth::$store;
}
/**
* Get hybridauth session data
* @return string|null
*/
function getSessionData() {
return Hybrid_Auth::storage()->getSessionData();
}
/**
* Restore hybridauth session data
*
* @param string $sessiondata Serialized session data
* @retun void
*/
function restoreSessionData($sessiondata = null) {
Hybrid_Auth::storage()->restoreSessionData($sessiondata);
}
/**
* Try to authenticate the user with a given provider.
*
* If the user is already connected we just return and instance of provider adapter,
* ELSE, try to authenticate and authorize the user with the provider.
*
* $params is generally an array with required info in order for this provider and HybridAuth to work,
* like :
* hauth_return_to: URL to call back after authentication is done
* openid_identifier: The OpenID identity provider identifier
* google_service: can be "Users" for Google user accounts service or "Apps" for Google hosted Apps
*
* @param string $providerId ID of the provider
* @param array $params Params
* @return
*/
public static function authenticate($providerId, $params = null) {
Hybrid_Logger::info("Enter Hybrid_Auth::authenticate( $providerId )");
if (!Hybrid_Auth::storage()->get("hauth_session.$providerId.is_logged_in")) {
// if user not connected to $providerId then try setup a new adapter and start the login process for this provider
Hybrid_Logger::info("Hybrid_Auth::authenticate( $providerId ), User not connected to the provider. Try to authenticate..");
$provider_adapter = Hybrid_Auth::setup($providerId, $params);
$provider_adapter->login();
} else {
// else, then return the adapter instance for the given provider
Hybrid_Logger::info("Hybrid_Auth::authenticate( $providerId ), User is already connected to this provider. Return the adapter instance.");
return Hybrid_Auth::getAdapter($providerId);
}
}
/**
* Return the adapter instance for an authenticated provider
*
* @param string $providerId ID of the provider
* @return Hybrid_Provider_Adapter
*/
public static function getAdapter($providerId = null) {
Hybrid_Logger::info("Enter Hybrid_Auth::getAdapter( $providerId )");
return Hybrid_Auth::setup($providerId);
}
/**
* Setup an adapter for a given provider
*
* @param string $providerId ID of the provider
* @param array $params Adapter params
* @return Hybrid_Provider_Adapter
*/
public static function setup($providerId, $params = null) {
Hybrid_Logger::debug("Enter Hybrid_Auth::setup( $providerId )", $params);
if (!$params) {
$params = Hybrid_Auth::storage()->get("hauth_session.$providerId.id_provider_params");
Hybrid_Logger::debug("Hybrid_Auth::setup( $providerId ), no params given. Trying to get the stored for this provider.", $params);
}
if (!$params) {
$params = array();
Hybrid_Logger::info("Hybrid_Auth::setup( $providerId ), no stored params found for this provider. Initialize a new one for new session");
}
if (is_array($params) && !isset($params["hauth_return_to"])) {
$params["hauth_return_to"] = Hybrid_Auth::getCurrentUrl();
Hybrid_Logger::debug("Hybrid_Auth::setup( $providerId ). HybridAuth Callback URL set to: ", $params["hauth_return_to"]);
}
# instantiate a new IDProvider Adapter
$provider = new Hybrid_Provider_Adapter();
$provider->factory($providerId, $params);
return $provider;
}
/**
* Check if the current user is connected to a given provider
*
* @param string $providerId ID of the provider
* @return bool
*/
public static function isConnectedWith($providerId) {
return (bool) Hybrid_Auth::storage()->get("hauth_session.{$providerId}.is_logged_in");
}
/**
* Return array listing all authenticated providers
* @return array
*/
public static function getConnectedProviders() {
$idps = array();
foreach (Hybrid_Auth::$config["providers"] as $idpid => $params) {
if (Hybrid_Auth::isConnectedWith($idpid)) {
$idps[] = $idpid;
}
}
return $idps;
}
/**
* Return array listing all enabled providers as well as a flag if you are connected
*
* <code>
* array(
* 'Facebook' => array(
* 'connected' => true
* )
* )
* </code>
* @return array
*/
public static function getProviders() {
$idps = array();
foreach (Hybrid_Auth::$config["providers"] as $idpid => $params) {
if ($params['enabled']) {
$idps[$idpid] = array('connected' => false);
if (Hybrid_Auth::isConnectedWith($idpid)) {
$idps[$idpid]['connected'] = true;
}
}
}
return $idps;
}
/**
* A generic function to logout all connected provider at once
* @return void
*/
public static function logoutAllProviders() {
$idps = Hybrid_Auth::getConnectedProviders();
foreach ($idps as $idp) {
$adapter = Hybrid_Auth::getAdapter($idp);
$adapter->logout();
}
}
/**
* Utility function, redirect to a given URL with php header or using javascript location.href
*
* @param string $url URL to redirect to
* @param string $mode PHP|JS
*/
public static function redirect($url, $mode = "PHP") {
Hybrid_Logger::info("Enter Hybrid_Auth::redirect( $url, $mode )");
// Ensure session is saved before sending response, see https://github.com/symfony/symfony/pull/12341
if ((PHP_VERSION_ID >= 50400 && PHP_SESSION_ACTIVE === session_status()) || (PHP_VERSION_ID < 50400 && isset($_SESSION) && session_id())) {
session_write_close();
}
if ($mode == "PHP") {
header("Location: $url");
} elseif ($mode == "JS") {
echo '<html>';
echo '<head>';
echo '<script type="text/javascript">';
echo 'function redirect(){ window.top.location.href="' . $url . '"; }';
echo '</script>';
echo '</head>';
echo '<body onload="redirect()">';
echo 'Redirecting, please wait...';
echo '</body>';
echo '</html>';
}
die();
}
/**
* Utility function, return the current url
*
* @param bool $request_uri true to get $_SERVER['REQUEST_URI'], false for $_SERVER['PHP_SELF']
* @return string
*/
public static function getCurrentUrl($request_uri = true) {
if (php_sapi_name() == 'cli') {
return '';
}
$protocol = 'http://';
if ((isset($_SERVER['HTTPS']) && ( $_SERVER['HTTPS'] == 'on' || $_SERVER['HTTPS'] == 1 ))
|| (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https'))
{
$protocol = 'https://';
}
$url = $protocol . $_SERVER['HTTP_HOST'];
if ($request_uri) {
$url .= $_SERVER['REQUEST_URI'];
} else {
$url .= $_SERVER['PHP_SELF'];
}
// return current url
return $url;
}
}