function authorize_twitter()
{
if (!App::import('Lib', 'tmh_oauth')) {
$this->Session->setFlash(sprintf(__('Failed to load the %s library! Contact your system administrator.', true), 'Twitter OAuth'), 'default', array('class' => 'error'));
$this->redirect(array('action' => 'preferences'));
}
define('__DIR__', ROOT . DS . APP_DIR . DS . 'libs');
$tmhOAuth = new tmhOAuth(array('consumer_key' => Configure::read('twitter.consumer_key'), 'consumer_secret' => Configure::read('twitter.consumer_secret')));
if (!empty($this->params['url']['oauth_token'])) {
$response = $this->Session->read('Twitter.response');
$this->Session->delete('Twitter.response');
if ($this->params['url']['oauth_token'] !== $response['oauth_token']) {
$this->Session->setFlash(__('The oauth token you started with doesn\'t match the one you\'ve been redirected with. Do you have multiple tabs open?', true), 'default', array('class' => 'warning'));
$this->redirect(array('action' => 'preferences'));
}
if (!isset($this->params['url']['oauth_verifier'])) {
$this->Session->setFlash(__('The oauth verifier is missing so we cannot continue. Did you deny the appliction access?', true), 'default', array('class' => 'warning'));
$this->redirect(array('action' => 'preferences'));
}
// Update with the temporary token and secret
$tmhOAuth->reconfigure(array_merge($tmhOAuth->config, array('token' => $response['oauth_token'], 'secret' => $response['oauth_token_secret'])));
$code = $tmhOAuth->user_request(array('method' => 'POST', 'url' => $tmhOAuth->url('oauth/access_token', ''), 'params' => array('oauth_verifier' => trim($this->params['url']['oauth_verifier']))));
if ($code == 200) {
$oauth_creds = $tmhOAuth->extract_params($tmhOAuth->response['response']);
if ($this->Person->updateAll(array('twitter_token' => "'{$oauth_creds['oauth_token']}'", 'twitter_secret' => "'{$oauth_creds['oauth_token_secret']}'"), array('Person.id' => $this->UserCache->currentId()))) {
$this->Session->setFlash(sprintf(__('Your Twitter authorization has been completed. You can always revoke this at any time through the preferences page.', true), __('person', true)), 'default', array('class' => 'success'));
} else {
$this->Session->setFlash(sprintf(__('Twitter authorization was received, but the database failed to update.', true), __('person', true)), 'default', array('class' => 'warning'));
}
} else {
$this->Session->setFlash(__('There was an error communicating with Twitter.', true) . ' ' . $tmhOAuth->response['response'], 'default', array('class' => 'warning'));
}
$this->redirect(array('action' => 'preferences'));
} else {
$code = $tmhOAuth->apponly_request(array('without_bearer' => true, 'method' => 'POST', 'url' => $tmhOAuth->url('oauth/request_token', ''), 'params' => array('oauth_callback' => Router::url(Router::normalize($this->here), true))));
if ($code != 200) {
$this->Session->setFlash(__('There was an error communicating with Twitter.', true) . ' ' . $tmhOAuth->response['response'], 'default', array('class' => 'warning'));
$this->redirect(array('action' => 'preferences'));
}
// store the params into the session so they are there when we come back after the redirect
$response = $tmhOAuth->extract_params($tmhOAuth->response['response']);
// check the callback has been confirmed
if ($response['oauth_callback_confirmed'] !== 'true') {
$this->Session->setFlash(__('The callback was not confirmed by Twitter so we cannot continue.', true) . ' ' . $tmhOAuth->response['response'], 'default', array('class' => 'warning'));
$this->redirect(array('action' => 'preferences'));
} else {
$this->Session->write('Twitter.response', $response);
$this->redirect($tmhOAuth->url('oauth/authorize', '') . "?oauth_token={$response['oauth_token']}");
}
}
}
/**
* Set new config values for the OAuth class like different tokens.
*
* @param Array $config An array containing the values that should be
* overwritten.
*
* @return void
*/
public function reconfig($config)
{
// The consumer key and secret must always be included when reconfiguring
$config = array_merge($this->parent_config, $config);
parent::reconfigure($config);
return $this;
}