diff --git a/Classes/Controller/SsoController.php b/Classes/Controller/SsoController.php
index a687a2e..a708ef1 100644
--- a/Classes/Controller/SsoController.php
+++ b/Classes/Controller/SsoController.php
@@ -70,38 +70,39 @@ class SsoController extends ActionController
      */
     public function authenticateAction()
     {
-        $extKey = $_EXTKEY; //'dj_discourse_sso';
+        $extKey = 'dj_discourse_sso';
 
         /** @var \TYPO3\CMS\Extensionmanager\Utility\ConfigurationUtility $configurationUtility */
         $configurationUtility   = $this->objectManager->get(ConfigurationUtility::class);
         $extensionConfiguration = $configurationUtility->getCurrentConfiguration($extKey);
 
-        GeneralUtility::devLog('authenticateAction-0', $extKey, 0, array('extKey' => $extKey));
-        GeneralUtility::devLog('authenticateAction-1', $extKey, 0, array('config' => $extensionConfiguration));
+        // GeneralUtility::devLog('authenticateAction-0', $extKey, 0, array('extKey' => $extKey));
+        // GeneralUtility::devLog('authenticateAction-1', $extKey, 0, array('config' => $extensionConfiguration));
         // Check mandatory settings.
-        if (isset($extensionConfiguration['redirect_url']) === false) {
+        if (is_array($extensionConfiguration['redirect_url']) === false) {
             $errorText = '<div><b>ERROR!</b> '
                 .'You should not see this message!<br />'
                 .'Could not find extension configuration for parameter redirect_url! '
                 .'Please configure the plugin.';
             return $errorText;
         } else {
-            $redirectUrlRoot = $extensionConfiguration['redirect_url'];
+            $redirectUrlRoot = $extensionConfiguration['redirect_url']['value'];
         }
 
-        if (isset($extensionConfiguration['shared_key']) === false) {
+        if (is_array($extensionConfiguration['shared_key']) === false) {
             $errorText = '<div><b>ERROR!</b> '
                 .'You should not see this message!<br />'
                 .'Could not find extension configuration for parameter shared_key! '
                 .'Please configure the plugin.';
             return $errorText;
         } else {
-            $sharedKey = $extensionConfiguration['shared_key'];
+            $sharedKey = $extensionConfiguration['shared_key']['value'];
         }
 
-        // Set some defaults.
-        if (isset($extensionConfiguration['redirect_status']) === true) {
-            $redirectStatus = $extensionConfiguration['redirect_status'];
+        // Set redirect status.
+        $redirectStatus = false;
+        if (is_array($extensionConfiguration['redirect_status']) === true) {
+            $redirectStatus = intval($extensionConfiguration['redirect_status']['value']);
         }
 
         if ($redirectStatus === false || ($redirectStatus < 300 || $redirectStatus > 308)) {
@@ -113,12 +114,13 @@ class SsoController extends ActionController
         $sig  = GeneralUtility::_GP('sig');
         $hmac = hash_hmac('sha256', $sso, $sharedKey);
         if ($this->_hashsAreEqual($hmac, $sig) === false) {
-            GeneralUtility::devLog('authenticateAction bad request', $extKey, 0, array('sso' => $sso, 'sig' => $sig, 'hmac' => $hmac));
+            GeneralUtility::devLog('authenticateAction bad request', $extKey, 2, array('sso' => $sso, 'sig' => $sig, 'expected sig' => $hmac));
             header('HTTP/1.1 403 Forbidden');
             $this->throwStatus(403, 'Bad SSO request');
         } else {
             // Valid $sso string available, convert it.
             parse_str(base64_decode($sso), $receivedPayload);
+            // GeneralUtility::devLog('authenticateAction valid sso request', $extKey, 0, array('payload' => $receivedPayload));
             $user = null;
             if (isset($GLOBALS['TSFE']) === true
                 && isset($GLOBALS['TSFE']->fe_user) === true
@@ -127,7 +129,7 @@ class SsoController extends ActionController
                 $user = $GLOBALS['TSFE']->fe_user->user;
             }
 
-            if (isset($user) === true) {
+            if (is_array($user) === true) {
                 $userId      = $user['uid'];
                 $userEmail   = $user['email'];
                 $userName    = $user['username'];
@@ -141,10 +143,10 @@ class SsoController extends ActionController
                                 'name'        => $name,
                                );
                 $payload     = base64_encode(http_build_query($parameters));
-                $signature   = hash_hmac('sha256', $payload, $this->settings['discourse_sso_shared_key']);
+                $signature   = hash_hmac('sha256', $payload, $sharedKey);
                 $query       = http_build_query(array('sso' => $payload, 'sig' => $signature));
                 $redirectUrl = $redirectUrlRoot.'/session/sso_login?'.$query;
-                GeneralUtility::devLog('authenticateAction successful, redirecting', $extKey, 0, array('redirectUrl' => $redirectUrl, 'status' => $redirectStatus));
+                // GeneralUtility::devLog('authenticateAction successful, redirecting', $extKey, 0, array('redirectUrl' => $redirectUrl, 'status' => $redirectStatus, 'payload' => $payload, 'parameter' => $parameters));
                 $this->redirectToUri($redirectUrl, 0, $redirectStatus);
             } else {
                 // No user logged in.
@@ -153,7 +155,7 @@ class SsoController extends ActionController
                     .'You should not see this message!<br />'
                     .'This plugin should be made available only, if a Frontend User is logged in.<br />'
                     .'Please change this in the setup of this content element.';
-                GeneralUtility::devLog('authenticateAction bad configuration', $extKey, 0, array('error' => $errorText));
+                GeneralUtility::devLog('authenticateAction bad configuration', $extKey, 2, array('error' => $errorText));
                 return $errorText;
             }//end if
         }//end if
diff --git a/ext_emconf.php b/ext_emconf.php
index 1dfc195..a5bb549 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -10,26 +10,20 @@
  ***************************************************************/
 
 $EM_CONF[$_EXTKEY] = array(
-	'title' => 'Discourse SSO',
-	'description' => 'This is an SSO Provider for Discourse (see discourse.org) allowing Typo3 to be used to authenticate discourse users. User\'s n
-ame, login and email address is passed to discourse, allowing easy setup o fusers.',
-	'category' => 'plugin',
-	'author' => 'Dirk Jahnke',
-	'author_email' => 'dirk.jahnke@mailbox.org',
-	'state' => 'experimental',
-	'internal' => '',
-	'uploadfolder' => '0',
-	'createDirs' => '',
-	'clearCacheOnLoad' => 0,
-	'version' => '0.0.1',
-	'constraints' => array(
-		'depends' => array(
-			'typo3' => '6.2.0-7.2.99',
-		),
-		'conflicts' => array(
-		),
-		'suggests' => array(
-		),
-	),
-);
-?>
+                      'title'            => 'Discourse SSO',
+                      'description'      => 'This is a SSO Provider for Discourse (see discourse.org) allowing Typo3 to be used to authenticate discourse users. User\'s name, login and email address is passed to discourse, allowing easy setup of users.',
+                      'category'         => 'plugin',
+                      'author'           => 'Dirk Jahnke',
+                      'author_email'     => 'dirk.jahnke@mailbox.org',
+                      'state'            => 'experimental',
+                      'internal'         => '',
+                      'uploadfolder'     => '0',
+                      'createDirs'       => '',
+                      'clearCacheOnLoad' => 0,
+                      'version'          => '0.1.0',
+                      'constraints'      => array(
+                                             'depends'   => array('typo3' => '6.2.0-7.2.99'),
+                                             'conflicts' => array(),
+                                             'suggests'  => array(),
+                                            ),
+                     );