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|
<?php
namespace Auth;
use Event\AuthEvent;
use OAuth\Common\Storage\Session;
use OAuth\Common\Consumer\Credentials;
use OAuth\Common\Http\Uri\UriFactory;
use OAuth\ServiceFactory;
use OAuth\Common\Http\Exception\TokenResponseException;
/**
* Google backend
*
* @package auth
* @author Frederic Guillot
*/
class Google extends Base
{
/**
* Backend name
*
* @var string
*/
const AUTH_NAME = 'Google';
/**
* Authenticate a Google user
*
* @access public
* @param string $google_id Google unique id
* @return boolean
*/
public function authenticate($google_id)
{
$user = $this->user->getByGoogleId($google_id);
if ($user) {
$this->userSession->refresh($user);
$this->container['dispatcher']->dispatch('auth.success', new AuthEvent(self::AUTH_NAME, $user['id']));
return true;
}
return false;
}
/**
* Unlink a Google account for a given user
*
* @access public
* @param integer $user_id User id
* @return boolean
*/
public function unlink($user_id)
{
return $this->user->update(array(
'id' => $user_id,
'google_id' => '',
));
}
/**
* Update the user table based on the Google profile information
*
* @access public
* @param integer $user_id User id
* @param array $profile Google profile
* @return boolean
*/
public function updateUser($user_id, array $profile)
{
return $this->user->update(array(
'id' => $user_id,
'google_id' => $profile['id'],
'email' => $profile['email'],
'name' => $profile['name'],
));
}
/**
* Get the Google service instance
*
* @access public
* @return \OAuth\OAuth2\Service\Google
*/
public function getService()
{
$uriFactory = new UriFactory();
$currentUri = $uriFactory->createFromSuperGlobalArray($_SERVER);
$currentUri->setQuery('controller=user&action=google');
$storage = new Session(false);
$credentials = new Credentials(
GOOGLE_CLIENT_ID,
GOOGLE_CLIENT_SECRET,
$currentUri->getAbsoluteUri()
);
$serviceFactory = new ServiceFactory();
return $serviceFactory->createService(
'google',
$credentials,
$storage,
array('userinfo_email', 'userinfo_profile')
);
}
/**
* Get the authorization URL
*
* @access public
* @return \OAuth\Common\Http\Uri\Uri
*/
public function getAuthorizationUrl()
{
return $this->getService()->getAuthorizationUri();
}
/**
* Get Google profile information from the API
*
* @access public
* @param string $code Google authorization code
* @return bool|array
*/
public function getGoogleProfile($code)
{
try {
$googleService = $this->getService();
$googleService->requestAccessToken($code);
return json_decode($googleService->request('https://www.googleapis.com/oauth2/v1/userinfo'), true);
}
catch (TokenResponseException $e) {
return false;
}
}
}
|
