/usr/share/wordpress/wp-content/plugins/openid/consumer.php is in wordpress-openid 3.3.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* Functions related to the OpenID Consumer.
*/
// hooks for getting user data
add_filter('openid_auth_request_extensions', 'openid_add_sreg_extension', 10, 2);
add_filter('openid_auth_request_extensions', 'openid_add_ax_extension', 10, 2);
add_filter( 'xrds_simple', 'openid_consumer_xrds_simple');
/**
* Get the internal OpenID Consumer object. If it is not already initialized, do so.
*
* @return Auth_OpenID_Consumer OpenID consumer object
*/
function openid_getConsumer() {
static $consumer;
if (!$consumer) {
require_once 'Auth/OpenID/Consumer.php';
$store = openid_getStore();
$consumer = new Auth_OpenID_Consumer($store);
if( null === $consumer ) {
openid_error('OpenID consumer could not be created properly.');
openid_enabled(false);
}
}
return $consumer;
}
/**
* Send the user to their OpenID provider to authenticate.
*
* @param Auth_OpenID_AuthRequest $auth_request OpenID authentication request object
* @param string $trust_root OpenID trust root
* @param string $return_to URL where the OpenID provider should return the user
*/
function openid_redirect($auth_request, $trust_root, $return_to) {
do_action('openid_redirect', $auth_request, $trust_root, $return_to);
$message = $auth_request->getMessage($trust_root, $return_to, false);
if (Auth_OpenID::isFailure($message)) {
return openid_error('Could not redirect to server: '.$message->message);
}
$_SESSION['openid_return_to'] = $message->getArg(Auth_OpenID_OPENID_NS, 'return_to');
// send 302 redirect or POST
if ($auth_request->shouldSendRedirect()) {
$redirect_url = $auth_request->redirectURL($trust_root, $return_to);
wp_redirect( $redirect_url );
} else {
openid_repost($auth_request->endpoint->server_url, $message->toPostArgs());
}
}
/**
* Finish OpenID Authentication.
*
* @return String authenticated identity URL, or null if authentication failed.
*/
function finish_openid_auth() {
@session_start();
$consumer = openid_getConsumer();
if ( array_key_exists('openid_return_to', $_SESSION) ) {
$openid_return_to = $_SESSION['openid_return_to'];
}
if ( empty($openid_return_to) ) {
$openid_return_to = openid_service_url('consumer');
}
$response = $consumer->complete($openid_return_to);
unset($_SESSION['openid_return_to']);
openid_response($response);
switch( $response->status ) {
case Auth_OpenID_CANCEL:
openid_message(__('OpenID login was cancelled.', 'openid'));
openid_status('error');
break;
case Auth_OpenID_FAILURE:
openid_message(sprintf(__('OpenID login failed: %s', 'openid'), $response->message));
openid_status('error');
break;
case Auth_OpenID_SUCCESS:
openid_message(__('OpenID login successful', 'openid'));
openid_status('success');
$identity_url = $response->identity_url;
$escaped_url = htmlspecialchars($identity_url, ENT_QUOTES);
return $escaped_url;
default:
openid_message(__('Unknown Status. Bind not successful. This is probably a bug.', 'openid'));
openid_status('error');
}
return null;
}
/**
* Begin login by activating the OpenID consumer.
*
* @param string $url claimed ID
* @return Auth_OpenID_Request OpenID Request
*/
function openid_begin_consumer($url) {
static $request;
@session_start();
if ($request == NULL) {
set_error_handler( 'openid_customer_error_handler');
$consumer = openid_getConsumer();
$request = $consumer->begin($url);
restore_error_handler();
}
return $request;
}
/**
* Start the OpenID authentication process.
*
* @param string $claimed_url claimed OpenID URL
* @param string $action OpenID action being performed
* @param string $finish_url stored in user session for later redirect
* @uses apply_filters() Calls 'openid_auth_request_extensions' to gather extensions to be attached to auth request
*/
function openid_start_login( $claimed_url, $action, $finish_url = null) {
if ( empty($claimed_url) ) return; // do nothing.
$auth_request = openid_begin_consumer( $claimed_url );
if ( null === $auth_request ) {
openid_status('error');
openid_message(sprintf(
__('Could not discover an OpenID identity server endpoint at the url: %s', 'openid'),
htmlentities($claimed_url)
));
return;
}
@session_start();
$_SESSION['openid_action'] = $action;
$_SESSION['openid_finish_url'] = $finish_url;
$extensions = apply_filters('openid_auth_request_extensions', array(), $auth_request);
foreach ($extensions as $e) {
if (is_a($e, 'Auth_OpenID_Extension')) {
$auth_request->addExtension($e);
}
}
$return_to = openid_service_url('consumer', 'login_post');
$return_to = apply_filters('openid_return_to', $return_to);
$trust_root = openid_trust_root($return_to);
openid_redirect($auth_request, $trust_root, $return_to);
exit(0);
}
/**
* Build an Attribute Exchange attribute query extension if we've never seen this OpenID before.
*/
function openid_add_ax_extension($extensions, $auth_request) {
if(!get_user_by_openid($auth_request->endpoint->claimed_id)) {
require_once('Auth/OpenID/AX.php');
if ($auth_request->endpoint->usesExtension(Auth_OpenID_AX_NS_URI)) {
$ax_request = new Auth_OpenID_AX_FetchRequest();
$ax_request->add(Auth_OpenID_AX_AttrInfo::make('http://axschema.org/namePerson/friendly', 1, true));
$ax_request->add(Auth_OpenID_AX_AttrInfo::make('http://axschema.org/contact/email', 1, true));
$ax_request->add(Auth_OpenID_AX_AttrInfo::make('http://axschema.org/namePerson', 1, true));
$extensions[] = $ax_request;
}
}
return $extensions;
}
/**
* Build an SReg attribute query extension if we've never seen this OpenID before.
*/
function openid_add_sreg_extension($extensions, $auth_request) {
if(!get_user_by_openid($auth_request->endpoint->claimed_id)) {
require_once('Auth/OpenID/SReg.php');
if ($auth_request->endpoint->usesExtension(Auth_OpenID_SREG_NS_URI_1_0) || $auth_request->endpoint->usesExtension(Auth_OpenID_SREG_NS_URI_1_1)) {
$extensions[] = Auth_OpenID_SRegRequest::build(array(),array('nickname','email','fullname'));
}
}
return $extensions;
}
/**
* Finish OpenID authentication.
*
* @param string $action login action that is being performed
* @uses do_action() Calls 'openid_finish_auth' hook action after processing the authentication response.
*/
function finish_openid($action) {
$identity_url = finish_openid_auth();
do_action('openid_finish_auth', $identity_url, $action);
}
/**
*
* @uses apply_filters() Calls 'openid_consumer_return_urls' to collect return_to URLs to be included in XRDS document.
*/
function openid_consumer_xrds_simple($xrds) {
if (get_option('openid_xrds_returnto')) {
// OpenID Consumer Service
$return_urls = array_unique(apply_filters('openid_consumer_return_urls', array(openid_service_url('consumer', 'login_post'))));
if (!empty($return_urls)) {
$xrds = xrds_add_simple_service($xrds, 'OpenID Consumer Service', 'http://specs.openid.net/auth/2.0/return_to', $return_urls);
}
}
return $xrds;
}
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