SimpleSAML_Auth_Simple::login PHP Method

    public function login(array $params = array())
    {
        if (array_key_exists('KeepPost', $params)) {
            $keepPost = (bool) $params['KeepPost'];
        } else {
            $keepPost = true;
        }
        if (array_key_exists('ReturnTo', $params)) {
            $returnTo = (string) $params['ReturnTo'];
        } else {
            if (array_key_exists('ReturnCallback', $params)) {
                $returnTo = (array) $params['ReturnCallback'];
            } else {
                $returnTo = \SimpleSAML\Utils\HTTP::getSelfURL();
            }
        }
        if (is_string($returnTo) && $keepPost && $_SERVER['REQUEST_METHOD'] === 'POST') {
            $returnTo = \SimpleSAML\Utils\HTTP::getPOSTRedirectURL($returnTo, $_POST);
        }
        if (array_key_exists('ErrorURL', $params)) {
            $errorURL = (string) $params['ErrorURL'];
        } else {
            $errorURL = null;
        }
        if (!isset($params[SimpleSAML_Auth_State::RESTART]) && is_string($returnTo)) {
            /*
             * A URL to restart the authentication, in case the user bookmarks
             * something, e.g. the discovery service page.
             */
            $restartURL = $this->getLoginURL($returnTo);
            $params[SimpleSAML_Auth_State::RESTART] = $restartURL;
        }
        $as = $this->getAuthSource();
        $as->initLogin($returnTo, $errorURL, $params);
        assert('false');
    }

 public function executeSignin($request)
 {
     $user = $this->getUser();
     if ($user->isAuthenticated()) {
         return $this->redirect('@homepage');
     }
     // Create SimpleSAML module
     $simpleSAMLAuth = new SimpleSAML_Auth_Simple('default-sp');
     // If the user is authenticated from the IdP
     if ($simpleSAMLAuth->isAuthenticated()) {
         $attributes = $simpleSAMLAuth->getAttributes();
         // save the referer
         $user_referer = $user->getReferer($request->getReferer());
         // Try to find the user with his uid
         $query = Doctrine_Core::getTable('sfGuardUser')->createQuery('u')->where('u.username = ?', $attributes['eduPersonPrincipalName'][0]);
         // If the sGuardUser already exists in the database, it's OK
         if ($query->count() >= 1) {
             $guard_user = $query->fetchOne();
             $guard_user->setEmailAddress($attributes['mail'][0]);
             $guard_user->setLastName($attributes['cn'][0]);
             $guard_user->save();
         } else {
             // the user doesn't exist, we create a new one with random password
             $guard_user = new sfGuardUser();
             $guard_user->setUsername($attributes['eduPersonPrincipalName'][0]);
             $guard_user->setPassword(md5(microtime() . $attributes['eduPersonPrincipalName'][0] . mt_rand()));
             $guard_user->setEmailAddress($attributes['mail'][0]);
             $guard_user->setLastName($attributes['cn'][0]);
             $guard_user->setIsActive(true);
             $guard_user->save();
         }
         // Let the User signin
         // The auth is not rembered : the IdP can decide that
         $this->getUser()->signin($guard_user, $remember = false);
         // always redirect to a URL set in app.yml
         // or to the referer
         // or to the homepage
         $signinUrl = sfConfig::get('app_sf_guard_plugin_success_signin_url', $user_referer);
         return $this->redirect('' != $signinUrl ? $signinUrl : '@homepage');
     } else {
         if ($request->isXmlHttpRequest()) {
             $this->getResponse()->setHeaderOnly(true);
             $this->getResponse()->setStatusCode(401);
             return sfView::NONE;
         }
         // if we have been forwarded, then the referer is the current URL
         // if not, this is the referer of the current request
         $user->setReferer($this->getContext()->getActionStack()->getSize() > 1 ? $request->getUri() : $request->getReferer());
         /* gyufi $this->url_idp = $simpleSAMLAuth->login(array(
              //'saml:idp' => 'https://openidp.feide.no',
              'saml:idp' => 'https://aai.sztaki.hu/idp-partners',
              'saml:idp' => 'https://aai.sztaki.hu/idp',
            ));
            */
         $this->url_idp = $simpleSAMLAuth->login();
         // Nothing happened after there, $simpleSAMLAuth->login() calls exit()
         /*
               $module = sfConfig::get('sf_login_module');
               if ($this->getModuleName() != $module)
               {
                 return $this->redirect($module.'/'.sfConfig::get('sf_login_action'));
               }
         
               $this->getResponse()->setStatusCode(401);
         */
     }
 }