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<?php
/*!
* HybridAuth
* http://hybridauth.sourceforge.net | http://github.com/hybridauth/hybridauth
* (c) 2009-2012, HybridAuth authors | http://hybridauth.sourceforge.net/licenses.html
*/
/**
* Hybrid_Endpoint class
*
* Hybrid_Endpoint class provides a simple way to handle the OpenID and OAuth endpoint.
*/
class Hybrid_Endpoint {
public static $request = NULL;
public static $initDone = FALSE;
/**
* Process the current request
*
* $request - The current request parameters. Leave as NULL to default to use $_REQUEST.
*/
public static function process( $request = NULL )
{
// Setup request variable
Hybrid_Endpoint::$request = $request;
if ( is_null(Hybrid_Endpoint::$request) ){
// Fix a strange behavior when some provider call back ha endpoint
// with /index.php?hauth.done={provider}?{args}...
// >here we need to recreate the $_REQUEST
if ( strrpos( $_SERVER["QUERY_STRING"], '?' ) ) {
$_SERVER["QUERY_STRING"] = str_replace( "?", "&", $_SERVER["QUERY_STRING"] );
parse_str( $_SERVER["QUERY_STRING"], $_REQUEST );
}
Hybrid_Endpoint::$request = $_REQUEST;
}
// If openid_policy requested, we return our policy document
if ( isset( Hybrid_Endpoint::$request["get"] ) && Hybrid_Endpoint::$request["get"] == "openid_policy" ) {
Hybrid_Endpoint::processOpenidPolicy();
}
// If openid_xrds requested, we return our XRDS document
if ( isset( Hybrid_Endpoint::$request["get"] ) && Hybrid_Endpoint::$request["get"] == "openid_xrds" ) {
Hybrid_Endpoint::processOpenidXRDS();
}
// If we get a hauth.start
if ( isset( Hybrid_Endpoint::$request["hauth_start"] ) && Hybrid_Endpoint::$request["hauth_start"] ) {
Hybrid_Endpoint::processAuthStart();
}
// Else if hauth.done
elseif ( isset( Hybrid_Endpoint::$request["hauth_done"] ) && Hybrid_Endpoint::$request["hauth_done"] ) {
Hybrid_Endpoint::processAuthDone();
}
// Else we advertise our XRDS document, something supposed to be done from the Realm URL page
else {
Hybrid_Endpoint::processOpenidRealm();
}
}
/**
* Process OpenID policy request
*/
public static function processOpenidPolicy()
{
$output = file_get_contents( dirname(__FILE__) . "/resources/openid_policy.html" );
print $output;
die();
}
/**
* Process OpenID XRDS request
*/
public static function processOpenidXRDS()
{
header("Content-Type: application/xrds+xml");
$output = str_replace
(
"{RETURN_TO_URL}",
str_replace(
array("<", ">", "\"", "'", "&"), array("<", ">", """, "'", "&"),
Hybrid_Auth::getCurrentUrl( false )
),
file_get_contents( dirname(__FILE__) . "/resources/openid_xrds.xml" )
);
print $output;
die();
}
/**
* Process OpenID realm request
*/
public static function processOpenidRealm()
{
$output = str_replace
(
"{X_XRDS_LOCATION}",
htmlentities( Hybrid_Auth::getCurrentUrl( false ), ENT_QUOTES, 'UTF-8' ) . "?get=openid_xrds&v=" . Hybrid_Auth::$version,
file_get_contents( dirname(__FILE__) . "/resources/openid_realm.html" )
);
print $output;
die();
}
/**
* define:endpoint step 3.
*/
public static function processAuthStart()
{
Hybrid_Endpoint::authInit();
$provider_id = trim( strip_tags( Hybrid_Endpoint::$request["hauth_start"] ) );
# check if page accessed directly
if( ! Hybrid_Auth::storage()->get( "hauth_session.$provider_id.hauth_endpoint" ) ) {
Hybrid_Logger::error( "Endpoint: hauth_endpoint parameter is not defined on hauth_start, halt login process!" );
header( "HTTP/1.0 404 Not Found" );
die( "You cannot access this page directly." );
}
# define:hybrid.endpoint.php step 2.
$hauth = Hybrid_Auth::setup( $provider_id );
# if REQUESTed hauth_idprovider is wrong, session not created, etc.
if( ! $hauth ) {
Hybrid_Logger::error( "Endpoint: Invalid parameter on hauth_start!" );
header( "HTTP/1.0 404 Not Found" );
die( "Invalid parameter! Please return to the login page and try again." );
}
try {
Hybrid_Logger::info( "Endpoint: call adapter [{$provider_id}] loginBegin()" );
$hauth->adapter->loginBegin();
}
catch ( Exception $e ) {
Hybrid_Logger::error( "Exception:" . $e->getMessage(), $e );
Hybrid_Error::setError( $e->getMessage(), $e->getCode(), $e->getTraceAsString(), $e );
$hauth->returnToCallbackUrl();
}
die();
}
/**
* define:endpoint step 3.1 and 3.2
*/
public static function processAuthDone()
{
Hybrid_Endpoint::authInit();
$provider_id = trim( strip_tags( Hybrid_Endpoint::$request["hauth_done"] ) );
$hauth = Hybrid_Auth::setup( $provider_id );
if( ! $hauth ) {
Hybrid_Logger::error( "Endpoint: Invalid parameter on hauth_done!" );
$hauth->adapter->setUserUnconnected();
header("HTTP/1.0 404 Not Found");
die( "Invalid parameter! Please return to the login page and try again." );
}
try {
Hybrid_Logger::info( "Endpoint: call adapter [{$provider_id}] loginFinish() " );
$hauth->adapter->loginFinish();
}
catch( Exception $e ){
Hybrid_Logger::error( "Exception:" . $e->getMessage(), $e );
Hybrid_Error::setError( $e->getMessage(), $e->getCode(), $e->getTraceAsString(), $e );
$hauth->adapter->setUserUnconnected();
}
Hybrid_Logger::info( "Endpoint: job done. retrun to callback url." );
$hauth->returnToCallbackUrl();
die();
}
public static function authInit()
{
if ( ! Hybrid_Endpoint::$initDone) {
Hybrid_Endpoint::$initDone = TRUE;
# Init Hybrid_Auth
try {
require_once realpath( dirname( __FILE__ ) ) . "/Storage.php";
$storage = new Hybrid_Storage();
// Check if Hybrid_Auth session already exist
if ( ! $storage->config( "CONFIG" ) ) {
header( "HTTP/1.0 404 Not Found" );
die( "You cannot access this page directly." );
}
Hybrid_Auth::initialize( $storage->config( "CONFIG" ) );
}
catch ( Exception $e ){
Hybrid_Logger::error( "Endpoint: Error while trying to init Hybrid_Auth" );
header( "HTTP/1.0 404 Not Found" );
die( "Oophs. Error!" );
}
}
}
}
|
