Twitter auth client added.

extensions/yii/authclient/clients/Twitter.php

@@ -0,0 +1,53 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\authclient\clients;
+
+use yii\authclient\OAuth1;
+
+/**
+ * Twitter allows authentication via Twitter OAuth.
+ * In order to use Twitter OAuth you must register your application at [[https://dev.twitter.com/apps/new]].
+ *
+ * @see https://dev.twitter.com/apps/new
+ * @see https://dev.twitter.com/docs/api
+ *
+ * @author Paul Klimov <klimov.paul@gmail.com>
+ * @since 2.0
+ */
+class Twitter extends OAuth1
+{
+	/**
+	 * @inheritdoc
+	 */
+	public function __construct($config = [])
+	{
+		$config = array_merge(
+			[
+				'consumerKey' => 'anonymous',
+				'consumerSecret' => 'anonymous',
+				'requestTokenUrl' => 'https://api.twitter.com/oauth/request_token',
+				'requestTokenMethod' => 'POST',
+				'accessTokenUrl' => 'https://api.twitter.com/oauth/access_token',
+				'accessTokenMethod' => 'POST',
+				'authUrl' => 'https://api.twitter.com/oauth/authorize',
+				'scope' => '',
+				'apiBaseUrl' => 'https://api.twitter.com/1.1',
+			],
+			$config
+		);
+		parent::__construct($config);
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function initUserAttributes()
+	{
+		return $this->api('account/verify_credentials.json', 'GET');
+	}
+}