CakePHP2でTwitterのOAuthをしてみる[cakephp][twitter]

TwitterApiComponent.php

<?php
App::import('Vendor', 'Oauth', array('file' => 'OAuth'.DS.'OAuthClient.php'));

class TwitterApiComponent extends Component {

	/**
	 * 使用するコンポーネント
	*/
	public $components = array('Session');

	/**
	 * Twitter用プロパティ
	 */
	public $consumerKey = '***';
	public $consumerSecret = '*****';
	public $callback_url = 'http://***/callback/';
	public $api_base_url = 'https://api.twitter.com/1.1/';

	public $request_token_url = 'https://api.twitter.com/oauth/request_token';
	public $authorize_url = 'https://api.twitter.com/oauth/authorize';
	public $access_token_url = 'https://api.twitter.com/oauth/access_token';

	/**
	 * コントローラ
	 */
	public $_controller;

	/**
	 * Twitterインスタンス
	 */
	public $_twitter;

	/**
	 *
	 */
	public function initialize(Controller $controller)
	{
		$this->_controller = $controller;
	}

	function startup(Controller $controller)
	{
		$this->_twitter = new OAuthClient($this->consumerKey, $this->consumerSecret);
	}

	/**
	 * OAuth Twitter
	 */
	public function twitterOauthLogin()
	{
		//リクエスト用トークンを生成
		$requestToken = $this->_twitter->getRequestToken(
											$this->request_token_url,
											$this->callback_url
		);

		$this->Session->write('twitter_request_token', $requestToken);

		$url = 'http://twitter.com/oauth/authorize?oauth_token='. $requestToken->key;
		$this->_controller->redirect($url);
	}

	/**
	 * Callback
	 */
	public function twitterOauthCallback()
	{
		$requestToken = $this->Session->read('twitter_request_token');

		 //アクセストークンの取得
		$accessToken = $this->_twitter->getAccessToken($this->access_token_url, $requestToken);
		$this->Session->write('twitter_access_token', $accessToken);
	}

	/**
	 * APIコールメソッド
	 */
	public function api($path, $param=array(), $method="get", $format="json")
	{
		$accessToken = $this->Session->read('twitter_access_token');
		if(!$accessToken){
			return false;
		}

		$url = $this->api_base_url. $path;
		$method = strtolower($method);

		$data = $this->_twitter->$method($accessToken->key, $accessToken->secret, $url, $param);

		if($format == "json"){
			return json_decode($data,true);
		}

		return $data;
	}
}

TwitterController.php

<?php

class TwitterController extends AppController {

	public $components = array('TwitterApi');

	/*
	 * TOP
	 */
	public function index(){
	}

	/*
	 * 認証を開始する
	 */
	public function twitterOauthStart(){
		$this->TwitterApi->twitterOauthLogin();
	}

	public function callback(){
		//拒否された場合
		if(!empty($this->request->query['denied'])){
			$this->render('index');
			return;
		}

		$this->TwitterApi->twitterOauthCallback();

		//Twitterプロフィール情報の取得
		$path = "account/verify_credentials.json";
		$res_profile = $this->TwitterApi->api($path);

		//自動フォロー
		$friendships = 'pad_sexy';
		$param = array('screen_name' => $friendships);
		$path = "friendships/create.json";
		$method = "post";
		$res_follow = $this->TwitterApi->api($path, $param, $method);

		//Tweet
		$tweet = "TEST";
		$param = array('status' => $tweet);
		$path = "statuses/update.json";
		$method = "post";
		$res_tweet = $this->TwitterApi->api($path, $param, $method);

		$this->redirect(array('controller'=> 'twitter', 'action'=>'thankyou'));
		exit;
	}

	/*
	 * 完了画面
	 */
	public function thankyou() {
	}
}