Ignore case for organization; example.org should match EXAMPLE.ORG

Author: tvdijen

src/Auth/Source/LdapMulti.php

@@ -21,6 +21,7 @@
 use SimpleSAML\Error;
 use SimpleSAML\Module\core\Auth\UserPassOrgBase;
 
+use function array_change_key_case;
 use function array_key_exists;
 use function var_export;
 
@@ -85,7 +86,7 @@ public function __construct(array $info, array $config)
             false,
         );
 
-        $this->mapping = $this->ldapConfig->getArray('mapping');
+        $this->mapping = array_change_key_case($this->ldapConfig->getArray('mapping'));
         Assert::notEmpty($this->mapping);
 
         $organizations = array_keys($this->mapping);