Fix Scrutinizer issues

modules/saml/lib/Controller/Metadata.php

@@ -13,6 +13,7 @@ use SimpleSAML\Module;
 use SimpleSAML\Module\saml\IdP\SAML2 as SAML2_IdP;
 use SimpleSAML\Utils;
 use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
 
 use function strpos;
 use function strrpos;
@@ -73,7 +74,7 @@ class Metadata
         }
 
         // check if valid local session exists
-        if ($config->getOptionalBoolean('admin.protectmetadata', false)) {
+        if ($this->config->getOptionalBoolean('admin.protectmetadata', false)) {
             return new RunnableResponse([$this->authUtils, 'requireAdmin']);
         }
 

modules/saml/lib/Controller/SingleLogout.php

@@ -89,7 +89,7 @@ class SingleLogout
     {
         Logger::info('SAML2.0 - IdP.initSLO: Accessing SAML 2.0 IdP endpoint init Single Logout');
 
-        if ($this->config->getOptionalBoolean('enable.saml20-idp') === false || !Module::isModuleEnabled('saml')) {
+        if ($this->config->getBoolean('enable.saml20-idp') === false || !Module::isModuleEnabled('saml')) {
             throw new Error\Error('NOACCESS', null, 403);
         }
 

modules/saml/lib/Controller/WebBrowserSingleSignOn.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace SimpleSAML\Module\saml\Controller;
 
+use Exception;
 use SAML2\Exception\Protocol\UnsupportedBindingException;
 use SAML2\ArtifactResolve;
 use SAML2\ArtifactResponse;