Rewrite of the authentication and authorization system

app/User/GitlabUserProvider.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Kanboard\User;
+
+/**
+ * Gitlab OAuth User Provider
+ *
+ * @package  user
+ * @author   Frederic Guillot
+ */
+class GitlabUserProvider extends OAuthUserProvider
+{
+    /**
+     * Get external id column name
+     *
+     * @access public
+     * @return string
+     */
+    public function getExternalIdColumn()
+    {
+        return 'gitlab_id';
+    }
+}