Zend Gdata AuthSubによるgoogleカレンダーへのアクセス

intro

Zend_Gdata_AuthSubとZend_Gdata_Calendarを利用して、googleカレンダーへのアクセスを行います。
詳細に関してはProgrammer’s Reference Guide(16.2)を参照してください。
一応デモサイトからも動作を確認できます(セキュリティについては詳しくは知りませんが）。

1.コントローラの作成

以下のようにapplication/constorllers/GdataController.phpファイルを作成します。

<?php
require_once 'Zend/Controller/Action.php';
require_once 'Zend/Gdata.php';
require_once 'Zend/Gdata/AuthSub.php';
require_once 'Zend/Gdata/Calendar.php';
require_once 'Zend/Session/Namespace.php';

class GdataController extends Zend_Controller_Action
{
    protected $_session;

    public function preDispatch()
    {
        $this->_session = new Zend_Session_Namespace('GdataController');
    }


    public function indexAction()
    {
        $my_calendar = 'http://www.google.com/calendar/feeds/default/private/full';
        if (!isset($this->_session->cal_token)) {
            if (isset($_GET['token'])) {
                // You can convert the single-use token to a session token.
                $token = $_GET['token'];
                $session_token =  Zend_Gdata_AuthSub::getAuthSubSessionToken($token);
                // Store the session token in our session.
                $this->_session->cal_token = $session_token;
            } else {
                // Display link to generate single-use token
                $googleUri = Zend_Gdata_AuthSub::getAuthSubTokenUri(
                    'http://'. $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'],
                    $my_calendar, 0, 1);
                $this->view->message = 
                    "Go <a href='$googleUri'>Google Login Screen</a>";
                return $this->render();
            }
        }

        // Create an authenticated HTTP Client to talk to Google.
        $client = Zend_Gdata_AuthSub::getHttpClient($this->_session->cal_token);

        // Create a Gdata object using the authenticated Http Client
        $service = new Zend_Gdata_Calendar($client);
        $query = $service->newEventQuery();
        $query->setUser('default');
        $query->setVisibility('private');
        $query->setProjection('full');
        $query->setOrderby('starttime');
        $query->setFutureevents('true');

        $this->view->events = $service->getCalendarEventFeed($query);
    }

    public function logoutAction()
    {
        if (isset($this->_session->cal_token))
        {
            Zend_Gdata_AuthSub::AuthSubRevokeToken($this->_session->cal_token);
            unset($this->_session->cal_token);
        }
        $this->_helper->redirector('index');
    }
}

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<?php

require_once 'Zend/Controller/Action.php';

require_once 'Zend/Gdata.php';

require_once 'Zend/Gdata/AuthSub.php';

require_once 'Zend/Gdata/Calendar.php';

require_once 'Zend/Session/Namespace.php';

class GdataController extends Zend_Controller_Action

{

protected $_session;

public function preDispatch()

{

$this->_session = new Zend_Session_Namespace('GdataController');

}

public function indexAction()

{

$my_calendar = 'http://www.google.com/calendar/feeds/default/private/full';

if (!isset($this->_session->cal_token)) {

if (isset($_GET['token'])) {

// You can convert the single-use token to a session token.

$token = $_GET['token'];

$session_token = Zend_Gdata_AuthSub::getAuthSubSessionToken($token);

// Store the session token in our session.

$this->_session->cal_token = $session_token;

} else {

// Display link to generate single-use token

$googleUri = Zend_Gdata_AuthSub::getAuthSubTokenUri(

'http://'. $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'],

$my_calendar, 0, 1);

$this->view->message =

"Go <a href='$googleUri'>Google Login Screen</a>";

return $this->render();

}

// Create an authenticated HTTP Client to talk to Google.

$client = Zend_Gdata_AuthSub::getHttpClient($this->_session->cal_token);

// Create a Gdata object using the authenticated Http Client

$service = new Zend_Gdata_Calendar($client);

$query = $service->newEventQuery();

$query->setUser('default');

$query->setVisibility('private');

$query->setProjection('full');

$query->setOrderby('starttime');

$query->setFutureevents('true');

$this->view->events = $service->getCalendarEventFeed($query);

}

public function logoutAction()

{

if (isset($this->_session->cal_token))

{

Zend_Gdata_AuthSub::AuthSubRevokeToken($this->_session->cal_token);

unset($this->_session->cal_token);

}

$this->_helper->redirector('index');

}

2.ビューの作成

以下のようにapplication/views/scripts/gdata/index.phtmlファイルを作成します。

<?php if (isset($this->message)) : ?>
<?= $this->message ?>
<?php endif; ?>
<?php if (isset($this->events)) : ?>
<h1>Calendar Event List</h1>
<ul>
<?php foreach ($this->events as $event) : ?>
  <li><?= $event->title?>(Event ID:<?= $event->id ?>)</li>
<?php endforeach; ?>
</ul>
<?php endif; ?>
<div>
<a href="<?= $this->url(array('action'=>'logout'))?>">Logout</a>
</div>

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<?php if (isset($this->message)) : ?>

<?= $this->message ?>

<?php endif; ?>

<?php if (isset($this->events)) : ?>

<h1>Calendar Event List</h1>

<ul>

<?php foreach ($this->events as $event) : ?>

<li><?= $event->title?>(Event ID:<?= $event->id ?>)</li>

<?php endforeach; ?>

</ul>

<?php endif; ?>

<div>

<a href="<?= $this->url(array('action'=>'logout'))?>">Logout</a>

</div>

3.確認

Webサーバにアクセスし、googleアカウントでログイン後、カレンダーのリストが表示されることを確認してみてください。

履歴

日付	内容
2008/5/1	公開

Zend_Gdata_AuthSubによるgoogleカレンダーへのアクセス

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