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<?php
namespace Kanboard\Controller;
use Kanboard\Core\Security\OAuthAuthenticationProviderInterface;
/**
* OAuth Controller
*
* @package Kanboard\Controller
* @author Frederic Guillot
*/
class OAuthController extends BaseController
{
/**
* Redirect to the provider if no code received
*
* @access private
* @param string $provider
*/
protected function step1($provider)
{
$code = $this->request->getStringParam('code');
$state = $this->request->getStringParam('state');
if (! empty($code)) {
$this->step2($provider, $code, $state);
} else {
$this->response->redirect($this->authenticationManager->getProvider($provider)->getService()->getAuthorizationUrl());
}
}
/**
* Link or authenticate the user
*
* @access protected
* @param string $providerName
* @param string $code
* @param string $state
*/
protected function step2($providerName, $code, $state)
{
$provider = $this->authenticationManager->getProvider($providerName);
$provider->setCode($code);
$hasValidState = $provider->getService()->isValidateState($state);
if ($this->userSession->isLogged()) {
if ($hasValidState) {
$this->link($provider);
} else {
$this->flash->failure(t('The OAuth2 state parameter is invalid'));
$this->response->redirect($this->helper->url->to('UserViewController', 'external', array('user_id' => $this->userSession->getId())));
}
} else {
if ($hasValidState) {
$this->authenticate($providerName);
} else {
$this->authenticationFailure(t('The OAuth2 state parameter is invalid'));
}
}
}
/**
* Link the account
*
* @access protected
* @param OAuthAuthenticationProviderInterface $provider
*/
protected function link(OAuthAuthenticationProviderInterface $provider)
{
if (! $provider->authenticate()) {
$this->flash->failure(t('External authentication failed'));
} else {
$this->userProfile->assign($this->userSession->getId(), $provider->getUser());
$this->flash->success(t('Your external account is linked to your profile successfully.'));
}
$this->response->redirect($this->helper->url->to('UserViewController', 'external', array('user_id' => $this->userSession->getId())));
}
/**
* Unlink external account
*
* @access public
*/
public function unlink()
{
$backend = $this->request->getStringParam('backend');
$this->checkCSRFParam();
if ($this->authenticationManager->getProvider($backend)->unlink($this->userSession->getId())) {
$this->flash->success(t('Your external account is not linked anymore to your profile.'));
} else {
$this->flash->failure(t('Unable to unlink your external account.'));
}
$this->response->redirect($this->helper->url->to('UserViewController', 'external', array('user_id' => $this->userSession->getId())));
}
/**
* Authenticate the account
*
* @access protected
* @param string $providerName
*/
protected function authenticate($providerName)
{
if ($this->authenticationManager->oauthAuthentication($providerName)) {
$this->redirectAfterLogin();
} else {
$this->authenticationFailure(t('External authentication failed'));
}
}
/**
* Show login failure page
*
* @access protected
* @param string $message
*/
protected function authenticationFailure($message)
{
$this->response->html($this->helper->layout->app('auth/index', array(
'errors' => array('login' => $message),
'values' => array(),
'no_layout' => true,
'title' => t('Login')
)));
}
}
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