function twitter_oauth_callback_validate in Twitter 6.5

Same name and namespace in other branches

1. 6.3 twitter.pages.inc \twitter_oauth_callback_validate()
2. 6.4 twitter.pages.inc \twitter_oauth_callback_validate()

Validate results from Twitter OAuth return request.

File

./twitter.pages.inc, line 431

Page callbacks for Twitter module.

Code

function twitter_oauth_callback_validate($form, &$form_state) {
  $key = variable_get('twitter_consumer_key', '');
  $secret = variable_get('twitter_consumer_secret', '');
  $error = FALSE;
  if (empty($key) || empty($secret)) {
    $error = TRUE;
  }
  else {
    if (isset($_SESSION['twitter_oauth'])) {
      $form_state['twitter_oauth'] = $_SESSION['twitter_oauth'];
      unset($_SESSION['twitter_oauth']);
    }
    else {
      $error = TRUE;
    }
    if (isset($form_state['twitter_oauth']['token'])) {
      $token = $form_state['twitter_oauth']['token'];
      if (!is_array($token) || empty($key) || empty($secret)) {
        $error = TRUE;
      }
      elseif (empty($token['oauth_token']) || empty($form_state['values']['oauth_token'])) {
        $error = TRUE;
      }
      elseif ($token['oauth_token'] != $form_state['values']['oauth_token']) {
        $error = TRUE;
      }
    }
    else {
      $error = TRUE;
    }
    if (!$error) {
      module_load_include('inc', 'twitter');
      if (!empty($token) && ($twitter = new Twitter($key, $secret, $token['oauth_token'], $token['oauth_token_secret']))) {

        // Append oauth_verifier from the querystring.
        if ($response = $twitter
          ->get_access_token($_GET['oauth_verifier'])) {
          $form_state['twitter_oauth']['response'] = $response;
        }
        else {
          $error = TRUE;
        }
      }
      else {
        $error = TRUE;
      }
    }
  }
  if ($error) {
    form_set_error('oauth_token', t('Invalid Twitter OAuth request'));
  }
}