first upload all files

Modules/User/LoginProvider.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Modules\User;
+
+class LoginProvider
+{
+    private static $providers = ['facebook', 'google'];
+
+    public static function add($provider)
+    {
+        array_push(self::$providers, $provider);
+
+        return self::$providers;
+    }
+
+    public static function all()
+    {
+        return self::$providers;
+    }
+
+    public static function enabled()
+    {
+        return array_filter(self::$providers, function ($provider) {
+            return setting("{$provider}_login_enabled");
+        });
+    }
+
+    public static function isEnable($provider)
+    {
+        return in_array($provider, self::enabled());
+    }
+}