function twitterLogin()
{
$request = $_REQUEST;
$site = $this->siteUrl();
$callBackUrl = $this->callBackUrl();
$response = new stdClass();
$exploder = explode('_', $_GET['apsl_login_id']);
$action = $exploder[1];
@session_start();
$options = get_option(APSL_SETTINGS);
if ($action == 'login') {
// Get identity from user and redirect browser to OpenID Server
if (!isset($request['oauth_token']) || $request['oauth_token'] == '') {
$twitterObj = new TwitterOAuth($options['apsl_twitter_settings']['apsl_twitter_api_key'], $options['apsl_twitter_settings']['apsl_twitter_api_secret']);
$encoded_url = isset($_GET['redirect_to']) ? $_GET['redirect_to'] : '';
if (isset($encoded_url) && $encoded_url != '') {
$callback = $callBackUrl . 'apsl_login_id' . '=twitter_check&redirect_to=' . $encoded_url;
} else {
$callback = $callBackUrl . 'apsl_login_id' . '=twitter_check';
}
$request_token = $twitterObj->getRequestToken($callback);
$_SESSION['oauth_twitter'] = array();
/* Save temporary credentials to session. */
$_SESSION['oauth_twitter']['oauth_token'] = $token = $request_token['oauth_token'];
$_SESSION['oauth_twitter']['oauth_token_secret'] = $request_token['oauth_token_secret'];
/* If last connection failed don't display authorization link. */
switch ($twitterObj->http_code) {
case 200:
try {
$url = $twitterObj->getAuthorizeUrl($token);
$this->redirect($url);
} catch (Exception $e) {
$response->status = 'ERROR';
$response->error_code = 2;
$response->error_message = 'Could not get AuthorizeUrl.';
}
break;
default:
$response->status = 'ERROR';
$response->error_code = 2;
$response->error_message = 'Could not connect to Twitter. Refresh the page or try again later.';
break;
}
} else {
$response->status = 'ERROR';
$response->error_code = 2;
$response->error_message = 'INVALID AUTHORIZATION';
}
} else {
if (isset($request['oauth_token']) && isset($request['oauth_verifier'])) {
/* Create TwitteroAuth object with app key/secret and token key/secret from default phase */
$twitterObj = new TwitterOAuth($options['apsl_twitter_settings']['apsl_twitter_api_key'], $options['apsl_twitter_settings']['apsl_twitter_api_secret'], $_SESSION['oauth_twitter']['oauth_token'], $_SESSION['oauth_twitter']['oauth_token_secret']);
/* Remove no longer needed request tokens */
unset($_SESSION['oauth_twitter']);
try {
$access_token = $twitterObj->getAccessToken($request['oauth_verifier']);
/* If HTTP response is 200 continue otherwise send to connect page to retry */
if (200 == $twitterObj->http_code) {
$user_profile = $twitterObj->get('users/show', array('screen_name' => $access_token['screen_name'], 'include_entities' => true));
/* Request access twitterObj from twitter */
$response->status = 'SUCCESS';
$response->deuid = $user_profile->id;
$response->deutype = 'twitter';
$response->name = explode(' ', $user_profile->name, 2);
$response->first_name = $response->name[0];
$response->last_name = isset($response->name[1]) ? $response->name[1] : '';
$response->deuimage = $user_profile->profile_image_url_https;
$response->email = $user_profile->screen_name . '@twitter.com';
$response->username = $user_profile->screen_name . '@twitter.com';
$response->url = $user_profile->url;
$response->about = $user_profile->description;
$response->gender = $user_profile->gender;
$response->location = $user_profile->location;
$response->error_message = '';
} else {
$response->status = 'ERROR';
$response->error_code = 2;
$response->error_message = 'Could not connect to Twitter. Refresh the page or try again later.';
}
} catch (Exception $e) {
$response->status = 'ERROR';
$response->error_code = 2;
$response->error_message = 'Could not get AccessToken.';
}
} else {
// User Canceled your Request
$response->status = 'ERROR';
$response->error_code = 1;
$response->error_message = "USER CANCELED REQUEST";
}
}
return $response;
}