new appraoch

pancake/system/vendor/league/oauth2-client/src/OptionProvider/HttpBasicAuthOptionProvider.php

@@ -0,0 +1,42 @@
+<?php
+/**
+ * This file is part of the league/oauth2-client library
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @copyright Copyright (c) Alex Bilbie <hello@alexbilbie.com>
+ * @license http://opensource.org/licenses/MIT MIT
+ * @link http://thephpleague.com/oauth2-client/ Documentation
+ * @link https://packagist.org/packages/league/oauth2-client Packagist
+ * @link https://github.com/thephpleague/oauth2-client GitHub
+ */
+
+namespace League\OAuth2\Client\OptionProvider;
+
+use InvalidArgumentException;
+
+/**
+ * Add http basic auth into access token request options
+ * @link https://tools.ietf.org/html/rfc6749#section-2.3.1
+ */
+class HttpBasicAuthOptionProvider extends PostAuthOptionProvider
+{
+    /**
+     * @inheritdoc
+     */
+    public function getAccessTokenOptions($method, array $params)
+    {
+        if (empty($params['client_id']) || empty($params['client_secret'])) {
+            throw new InvalidArgumentException('clientId and clientSecret are required for http basic auth');
+        }
+
+        $encodedCredentials = base64_encode(sprintf('%s:%s', $params['client_id'], $params['client_secret']));
+        unset($params['client_id'], $params['client_secret']);
+
+        $options = parent::getAccessTokenOptions($method, $params);
+        $options['headers']['Authorization'] = 'Basic ' . $encodedCredentials;
+
+        return $options;
+    }
+}