2007-09-14 19:04:11 +02:00
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<?php
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2007-09-14 21:10:18 +02:00
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/**
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* OpenID authenticator and controller
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*
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* @author Markus Lanthaler <markus@silverstripe.com>
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*/
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2007-09-14 19:04:11 +02:00
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/**
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* Require the OpenID consumer code.
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*/
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require_once "Auth/OpenID/Consumer.php";
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/**
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* Require the "file store" module, which we'll need to store
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* OpenID information.
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*/
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require_once "Auth/OpenID/FileStore.php";
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/**
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* Require the Simple Registration extension API.
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*/
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require_once "Auth/OpenID/SReg.php";
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/**
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* OpenID authenticator
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*
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* @author Markus Lanthaler <markus@silverstripe.com>
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*/
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class OpenIDAuthenticator extends Authenticator {
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/**
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* Method to authenticate an user
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*
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* @param array $RAW_data Raw data to authenticate the user
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2007-09-14 21:10:18 +02:00
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* @param Form $form Optional: If passed, better error messages can be
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* produced by using
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* {@link Form::sessionMessage()}
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2007-09-15 01:08:11 +02:00
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* @return bool Returns FALSE if authentication fails, otherwise the
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* method will not return at all because the browser will be
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* redirected to some other server.
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*
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* @todo Check if we can send the POST request for OpenID 2 directly
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* (without rendering a form and using javascript)
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2007-09-14 19:04:11 +02:00
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*/
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2007-09-14 21:10:18 +02:00
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public function authenticate(array $RAW_data, Form $form = null) {
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2007-09-14 19:04:11 +02:00
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$openid = $RAW_data['OpenIDURL'];
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$trust_root = Director::absoluteBaseURL();
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$return_to_url = $trust_root . 'OpenIDAuthenticator_Controller';
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2007-09-15 01:08:11 +02:00
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$consumer = new Auth_OpenID_Consumer(new OpenIDStorage(),
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new SessionWrapper());
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2007-09-14 19:04:11 +02:00
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2007-09-15 01:08:11 +02:00
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// No auth request means we can't begin OpenID
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2007-09-14 19:04:11 +02:00
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$auth_request = $consumer->begin($openid);
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if(!$auth_request) {
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2007-09-14 21:10:18 +02:00
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if(!is_null($form)) {
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$form->sessionMessage("That doesn't seem to be a valid OpenID " .
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"or i-name identifier. Please try again.",
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"bad");
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}
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return false;
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}
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$SQL_user = Convert::raw2sql($auth_request->endpoint->claimed_id);
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if(!($member = DataObject::get_one("Member", "Email = '$SQL_user'"))) {
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if(!is_null($form)) {
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$form->sessionMessage("Either your account is not enabled for " .
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"OpenID/i-name authentication " .
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"or the entered identifier is wrong. " .
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"Please try again.",
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"bad");
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}
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return false;
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2007-09-14 19:04:11 +02:00
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}
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if($auth_request->shouldSendRedirect()) {
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2007-09-15 01:08:11 +02:00
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// For OpenID 1, send a redirect.
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2007-09-14 19:04:11 +02:00
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$redirect_url = $auth_request->redirectURL($trust_root, $return_to_url);
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if(Auth_OpenID::isFailure($redirect_url)) {
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displayError("Could not redirect to server: " . $redirect_url->message);
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} else {
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Director::redirect($redirect_url);
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}
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2007-09-15 01:08:11 +02:00
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2007-09-14 19:04:11 +02:00
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} else {
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2007-09-15 01:08:11 +02:00
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// For OpenID 2, use a javascript form to send a POST request to the
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// server.
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2007-09-14 19:04:11 +02:00
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$form_id = 'openid_message';
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$form_html = $auth_request->formMarkup($trust_root, $return_to_url,
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false, array('id' => $form_id));
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if(Auth_OpenID::isFailure($form_html)) {
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displayError("Could not redirect to server: " . $form_html->message);
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} else {
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$page_contents = array(
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"<html><head><title>",
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"OpenID transaction in progress",
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"</title></head>",
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"<body onload='document.getElementById(\"".$form_id."\").submit()'>",
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$form_html,
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2007-09-15 01:08:11 +02:00
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"<p>Click "Continue" to login. You are only seeing " .
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"this because you appear to have JavaScript disabled.</p>",
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2007-09-14 19:04:11 +02:00
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"</body></html>");
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print implode("\n", $page_contents);
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}
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}
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2007-09-15 01:08:11 +02:00
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// Stop the script execution! This method should return only on error
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2007-09-14 19:04:11 +02:00
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exit();
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}
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/**
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* Method that creates the login form for this authentication method
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*
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2007-09-14 21:10:18 +02:00
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* @param Controller The parent controller, necessary to create the
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* appropriate form action tag
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2007-09-14 19:04:11 +02:00
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* @return Form Returns the login form to use with this authentication
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* method
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*/
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2007-09-14 21:10:18 +02:00
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public static function getLoginForm(Controller $controller) {
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return Object::create("OpenIDLoginForm", $controller, "LoginForm");
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2007-09-14 19:04:11 +02:00
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}
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2007-09-14 21:13:12 +02:00
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/**
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* Get the name of the authentication method
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*
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* @return string Returns the name of the authentication method.
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*/
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public static function getName() {
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return "OpenID/i-name";
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}
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2007-09-14 19:04:11 +02:00
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}
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/**
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* OpenIDAuthenticator Controller
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*
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* This class handles the response of the OpenID server to authenticate
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* the user
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*
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* @author Markus Lanthaler <markus@silverstripe.com>
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*/
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class OpenIDAuthenticator_Controller extends Controller {
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/**
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* Run the controller
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2007-09-15 01:08:11 +02:00
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*
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* @param array $requestParams Passed request parameters
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2007-09-14 19:04:11 +02:00
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*/
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function run($requestParams) {
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parent::init();
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2007-09-14 21:10:18 +02:00
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if(isset($_GET['debug_profile']))
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Profiler::mark("OpenIDAuthenticator_Controller");
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2007-09-14 19:04:11 +02:00
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2007-09-15 01:08:11 +02:00
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$consumer = new Auth_OpenID_Consumer(new OpenIDStorage(),
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new SessionWrapper());
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2007-09-14 21:10:18 +02:00
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// Complete the authentication process using the server's response.
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$response = $consumer->complete();
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if($response->status == Auth_OpenID_CANCEL) {
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Session::set("Security.Message.message",
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"The verification was cancelled. Please try again.");
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Session::set("Security.Message.type", "bad");
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if(isset($_GET['debug_profile']))
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Profiler::unmark("OpenIDAuthenticator_Controller");
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Director::redirect("Security/login");
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} else if($response->status == Auth_OpenID_FAILURE) {
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Session::set("Security.Message.message", // use $response->message ??
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"The OpenID/i-name authentication failed.");
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Session::set("Security.Message.type", "bad");
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if(isset($_GET['debug_profile']))
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Profiler::unmark("OpenIDAuthenticator_Controller");
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Director::redirect("Security/login");
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} else if($response->status == Auth_OpenID_SUCCESS) {
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$openid = $response->identity_url;
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$user = $openid;
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if($response->endpoint->canonicalID) {
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$user = $response->endpoint->canonicalID;
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}
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if(isset($_GET['debug_profile']))
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Profiler::unmark("OpenIDAuthenticator_Controller");
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$SQL_user = Convert::raw2sql($user);
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if($member = DataObject::get_one("Member", "Email = '$SQL_user'")) {
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$firstname = Convert::raw2xml($member->FirstName);
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Session::set("Security.Message.message", "Welcome Back, {$firstname}");
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Session::set("Security.Message.type", "good");
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$member->LogIn(
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Session::get('SessionForms.OpenIDLoginForm.Remember'));
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Session::clear('SessionForms.OpenIDLoginForm.OpenIDURL');
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Session::clear('SessionForms.OpenIDLoginForm.Remember');
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if($backURL = Session::get("BackURL")) {
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Session::clear("BackURL");
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Director::redirect($backURL);
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} else {
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Director::redirectBack();
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}
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} else {
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Session::set("Security.Message.message",
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"Login failed. Please try again.");
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Session::set("Security.Message.type", "bad");
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if($badLoginURL = Session::get("BadLoginURL")) {
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Director::redirect($badLoginURL);
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} else {
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Director::redirectBack();
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}
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}
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}
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2007-09-14 19:04:11 +02:00
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}
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/**
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* Helper function to set a session message for the OpenID login form
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*
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* @param string $message Message to store
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* @param string $type Message type (e.g. "good" or "bad")
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*/
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function sessionMessage($message, $type) {
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2007-09-15 01:08:11 +02:00
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Session::set("FormInfo.OpenIDLoginForm_LoginForm.formError.message",
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$message);
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Session::set("'FormInfo.OpenIDLoginForm_LoginForm.formError.type",
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$type);
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2007-09-14 19:04:11 +02:00
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}
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}
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/**
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* Session wrapper class for the OpenID library
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*
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* This class is a wrapper for the {@link Session} which implements the
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* interface of the {@link Auth_Yadis_PHPSession} class.
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*
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* @author Markus Lanthaler <markus@silverstripe.com>
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*/
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2007-09-14 21:10:18 +02:00
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class SessionWrapper extends Auth_Yadis_PHPSession {
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2007-09-14 19:04:11 +02:00
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/**
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* Set a session key/value pair.
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*
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* @param string $name The name of the session key to add.
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* @param string $value The value to add to the session.
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*/
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public function set($name, $value) {
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Session::set($name, $value);
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}
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/**
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* Get a key's value from the session.
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*
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* @param string $name The name of the key to retrieve.
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* @param string $default The optional value to return if the key
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* is not found in the session.
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* @return string $result The key's value in the session or
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* $default if it isn't found.
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*/
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public function get($name, $default=null) {
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$value = Session::get($name);
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if(is_null($value))
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$value = $default;
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return $value;
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}
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/**
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* Remove a key/value pair from the session.
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*
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* @param string $name The name of the key to remove.
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*/
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public function del($name) {
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Session::clear($name);
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}
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/**
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* Return the contents of the session in array form.
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*/
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public function contents() {
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return Session::getAll();
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}
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}
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?>
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