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407 lines
13 KiB
PHP
407 lines
13 KiB
PHP
<?php
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/*!
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* HybridAuth
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* http://hybridauth.sourceforge.net | http://github.com/hybridauth/hybridauth
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* (c) 2009-2012, HybridAuth authors | http://hybridauth.sourceforge.net/licenses.html
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*/
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/**
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* Hybrid_Auth class
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*
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* Hybrid_Auth class provide a simple way to authenticate users via OpenID and OAuth.
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*
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* Generally, Hybrid_Auth is the only class you should instanciate and use throughout your application.
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*/
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class Hybrid_Auth
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{
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public static $version = "2.1.2";
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public static $config = array();
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public static $store = NULL;
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public static $error = NULL;
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public static $logger = NULL;
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// --------------------------------------------------------------------
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/**
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* Try to start a new session of none then initialize Hybrid_Auth
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*
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* Hybrid_Auth constructor will require either a valid config array or
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* a path for a configuration file as parameter. To know more please
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* refer to the Configuration section:
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* http://hybridauth.sourceforge.net/userguide/Configuration.html
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*/
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function __construct( $config )
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{
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Hybrid_Auth::initialize( $config );
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}
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// --------------------------------------------------------------------
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/**
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* Try to initialize Hybrid_Auth with given $config hash or file
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*/
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public static function initialize( $config )
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{
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if( ! is_array( $config ) && ! file_exists( $config ) ){
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throw new Exception( "Hybriauth config does not exist on the given path.", 1 );
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}
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if( ! is_array( $config ) ){
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$config = include $config;
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}
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// build some need'd paths
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$config["path_base"] = realpath( dirname( __FILE__ ) ) . "/";
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$config["path_libraries"] = $config["path_base"] . "thirdparty/";
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$config["path_resources"] = $config["path_base"] . "resources/";
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$config["path_providers"] = $config["path_base"] . "Providers/";
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// reset debug mode
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if( ! isset( $config["debug_mode"] ) ){
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$config["debug_mode"] = false;
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$config["debug_file"] = null;
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}
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# load hybridauth required files, a autoload is on the way...
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require_once $config["path_base"] . "Error.php";
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require_once $config["path_base"] . "Logger.php";
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require_once $config["path_base"] . "Storage.php";
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require_once $config["path_base"] . "Provider_Adapter.php";
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require_once $config["path_base"] . "Provider_Model.php";
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require_once $config["path_base"] . "Provider_Model_OpenID.php";
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require_once $config["path_base"] . "Provider_Model_OAuth1.php";
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require_once $config["path_base"] . "Provider_Model_OAuth2.php";
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require_once $config["path_base"] . "User.php";
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require_once $config["path_base"] . "User_Profile.php";
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require_once $config["path_base"] . "User_Contact.php";
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require_once $config["path_base"] . "User_Activity.php";
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// hash given config
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Hybrid_Auth::$config = $config;
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// instace of log mng
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Hybrid_Auth::$logger = new Hybrid_Logger();
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// instace of errors mng
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Hybrid_Auth::$error = new Hybrid_Error();
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// start session storage mng
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Hybrid_Auth::$store = new Hybrid_Storage();
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Hybrid_Logger::info( "Enter Hybrid_Auth::initialize()");
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Hybrid_Logger::info( "Hybrid_Auth::initialize(). PHP version: " . PHP_VERSION );
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Hybrid_Logger::info( "Hybrid_Auth::initialize(). Hybrid_Auth version: " . Hybrid_Auth::$version );
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Hybrid_Logger::info( "Hybrid_Auth::initialize(). Hybrid_Auth called from: " . Hybrid_Auth::getCurrentUrl() );
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// PHP Curl extension [http://www.php.net/manual/en/intro.curl.php]
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if ( ! function_exists('curl_init') ) {
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Hybrid_Logger::error('Hybridauth Library needs the CURL PHP extension.');
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throw new Exception('Hybridauth Library needs the CURL PHP extension.');
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}
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// PHP JSON extension [http://php.net/manual/en/book.json.php]
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if ( ! function_exists('json_decode') ) {
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Hybrid_Logger::error('Hybridauth Library needs the JSON PHP extension.');
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throw new Exception('Hybridauth Library needs the JSON PHP extension.');
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}
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// session.name
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if( session_name() != "PHPSESSID" ){
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Hybrid_Logger::info('PHP session.name diff from default PHPSESSID. http://php.net/manual/en/session.configuration.php#ini.session.name.');
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}
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// safe_mode is on
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if( ini_get('safe_mode') ){
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Hybrid_Logger::info('PHP safe_mode is on. http://php.net/safe-mode.');
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}
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// open basedir is on
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if( ini_get('open_basedir') ){
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Hybrid_Logger::info('PHP open_basedir is on. http://php.net/open-basedir.');
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}
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Hybrid_Logger::debug( "Hybrid_Auth initialize. dump used config: ", serialize( $config ) );
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Hybrid_Logger::debug( "Hybrid_Auth initialize. dump current session: ", Hybrid_Auth::storage()->getSessionData() );
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Hybrid_Logger::info( "Hybrid_Auth initialize: check if any error is stored on the endpoint..." );
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if( Hybrid_Error::hasError() ){
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$m = Hybrid_Error::getErrorMessage();
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$c = Hybrid_Error::getErrorCode();
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$p = Hybrid_Error::getErrorPrevious();
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Hybrid_Logger::error( "Hybrid_Auth initialize: A stored Error found, Throw an new Exception and delete it from the store: Error#$c, '$m'" );
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Hybrid_Error::clearError();
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// try to provide the previous if any
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// Exception::getPrevious (PHP 5 >= 5.3.0) http://php.net/manual/en/exception.getprevious.php
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if ( version_compare( PHP_VERSION, '5.3.0', '>=' ) && ($p instanceof Exception) ) {
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throw new Exception( $m, $c, $p );
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}
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else{
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throw new Exception( $m, $c );
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}
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}
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Hybrid_Logger::info( "Hybrid_Auth initialize: no error found. initialization succeed." );
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// Endof initialize
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}
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// --------------------------------------------------------------------
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/**
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* Hybrid storage system accessor
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*
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* Users sessions are stored using HybridAuth storage system ( HybridAuth 2.0 handle PHP Session only) and can be acessed directly by
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* Hybrid_Auth::storage()->get($key) to retrieves the data for the given key, or calling
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* Hybrid_Auth::storage()->set($key, $value) to store the key => $value set.
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*/
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public static function storage()
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{
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return Hybrid_Auth::$store;
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}
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// --------------------------------------------------------------------
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/**
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* Get hybridauth session data.
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*/
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function getSessionData()
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{
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return Hybrid_Auth::storage()->getSessionData();
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}
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// --------------------------------------------------------------------
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/**
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* restore hybridauth session data.
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*/
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function restoreSessionData( $sessiondata = NULL )
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{
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Hybrid_Auth::storage()->restoreSessionData( $sessiondata );
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}
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// --------------------------------------------------------------------
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/**
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* Try to authenticate the user with a given provider.
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*
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* If the user is already connected we just return and instance of provider adapter,
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* ELSE, try to authenticate and authorize the user with the provider.
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*
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* $params is generally an array with required info in order for this provider and HybridAuth to work,
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* like :
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* hauth_return_to: URL to call back after authentication is done
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* openid_identifier: The OpenID identity provider identifier
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* google_service: can be "Users" for Google user accounts service or "Apps" for Google hosted Apps
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*/
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public static function authenticate( $providerId, $params = NULL )
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{
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Hybrid_Logger::info( "Enter Hybrid_Auth::authenticate( $providerId )" );
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// if user not connected to $providerId then try setup a new adapter and start the login process for this provider
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if( ! Hybrid_Auth::storage()->get( "hauth_session.$providerId.is_logged_in" ) ){
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Hybrid_Logger::info( "Hybrid_Auth::authenticate( $providerId ), User not connected to the provider. Try to authenticate.." );
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$provider_adapter = Hybrid_Auth::setup( $providerId, $params );
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$provider_adapter->login();
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}
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// else, then return the adapter instance for the given provider
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else{
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Hybrid_Logger::info( "Hybrid_Auth::authenticate( $providerId ), User is already connected to this provider. Return the adapter instance." );
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return Hybrid_Auth::getAdapter( $providerId );
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}
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}
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// --------------------------------------------------------------------
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/**
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* Return the adapter instance for an authenticated provider
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*/
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public static function getAdapter( $providerId = NULL )
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{
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Hybrid_Logger::info( "Enter Hybrid_Auth::getAdapter( $providerId )" );
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return Hybrid_Auth::setup( $providerId );
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}
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// --------------------------------------------------------------------
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/**
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* Setup an adapter for a given provider
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*/
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public static function setup( $providerId, $params = NULL )
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{
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Hybrid_Logger::debug( "Enter Hybrid_Auth::setup( $providerId )", $params );
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if( ! $params ){
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$params = Hybrid_Auth::storage()->get( "hauth_session.$providerId.id_provider_params" );
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Hybrid_Logger::debug( "Hybrid_Auth::setup( $providerId ), no params given. Trying to get the sotred for this provider.", $params );
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}
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if( ! $params ){
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$params = ARRAY();
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Hybrid_Logger::info( "Hybrid_Auth::setup( $providerId ), no stored params found for this provider. Initialize a new one for new session" );
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}
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if( ! isset( $params["hauth_return_to"] ) ){
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$params["hauth_return_to"] = Hybrid_Auth::getCurrentUrl();
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}
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Hybrid_Logger::debug( "Hybrid_Auth::setup( $providerId ). HybridAuth Callback URL set to: ", $params["hauth_return_to"] );
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# instantiate a new IDProvider Adapter
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$provider = new Hybrid_Provider_Adapter();
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$provider->factory( $providerId, $params );
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return $provider;
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}
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// --------------------------------------------------------------------
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/**
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* Check if the current user is connected to a given provider
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*/
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public static function isConnectedWith( $providerId )
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{
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return (bool) Hybrid_Auth::storage()->get( "hauth_session.{$providerId}.is_logged_in" );
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}
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// --------------------------------------------------------------------
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/**
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* Return array listing all authenticated providers
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*/
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public static function getConnectedProviders()
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{
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$idps = array();
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foreach( Hybrid_Auth::$config["providers"] as $idpid => $params ){
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if( Hybrid_Auth::isConnectedWith( $idpid ) ){
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$idps[] = $idpid;
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}
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}
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return $idps;
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}
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// --------------------------------------------------------------------
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/**
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* Return array listing all enabled providers as well as a flag if you are connected.
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*/
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public static function getProviders()
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{
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$idps = array();
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foreach( Hybrid_Auth::$config["providers"] as $idpid => $params ){
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if($params['enabled']) {
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$idps[$idpid] = array( 'connected' => false );
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if( Hybrid_Auth::isConnectedWith( $idpid ) ){
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$idps[$idpid]['connected'] = true;
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}
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}
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}
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return $idps;
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}
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// --------------------------------------------------------------------
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/**
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* A generic function to logout all connected provider at once
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*/
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public static function logoutAllProviders()
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{
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$idps = Hybrid_Auth::getConnectedProviders();
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foreach( $idps as $idp ){
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$adapter = Hybrid_Auth::getAdapter( $idp );
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$adapter->logout();
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}
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}
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// --------------------------------------------------------------------
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/**
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* Utility function, redirect to a given URL with php header or using javascript location.href
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*/
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public static function redirect( $url, $mode = "PHP" )
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{
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Hybrid_Logger::info( "Enter Hybrid_Auth::redirect( $url, $mode )" );
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if( $mode == "PHP" ){
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header( "Location: $url" ) ;
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}
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elseif( $mode == "JS" ){
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echo '<html>';
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echo '<head>';
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echo '<script type="text/javascript">';
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echo 'function redirect(){ window.top.location.href="' . $url . '"; }';
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echo '</script>';
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echo '</head>';
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echo '<body onload="redirect()">';
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echo 'Redirecting, please wait...';
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echo '</body>';
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echo '</html>';
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}
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die();
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}
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// --------------------------------------------------------------------
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/**
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* Utility function, return the current url. TRUE to get $_SERVER['REQUEST_URI'], FALSE for $_SERVER['PHP_SELF']
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*/
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public static function getCurrentUrl( $request_uri = true )
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{
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if(
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isset( $_SERVER['HTTPS'] ) && ( $_SERVER['HTTPS'] == 'on' || $_SERVER['HTTPS'] == 1 )
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|| isset( $_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https'
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){
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$protocol = 'https://';
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}
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else {
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$protocol = 'http://';
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}
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$url = $protocol . $_SERVER['HTTP_HOST'];
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// use port if non default
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if( isset( $_SERVER['SERVER_PORT'] ) && strpos( $url, ':'.$_SERVER['SERVER_PORT'] ) === FALSE ) {
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$url .= ($protocol === 'http://' && $_SERVER['SERVER_PORT'] != 80 && !isset( $_SERVER['HTTP_X_FORWARDED_PROTO']))
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|| ($protocol === 'https://' && $_SERVER['SERVER_PORT'] != 443 && !isset( $_SERVER['HTTP_X_FORWARDED_PROTO']))
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? ':' . $_SERVER['SERVER_PORT']
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: '';
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}
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if( $request_uri ){
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$url .= $_SERVER['REQUEST_URI'];
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}
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else{
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$url .= $_SERVER['PHP_SELF'];
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}
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// return current url
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return $url;
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}
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}
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