/**
* Get access token
*
* @param string $verifier OAuth verifier, got after authorization
* @access protected
* @return array
*/
protected function _setupAccessToken($verifier)
{
ApiDebug::p('requesting access token');
$oauth = $this->_getOAuthInstance(OAUTH_AUTH_TYPE_FORM);
$oauth->setToken(self::$_requestToken, self::$_requestSecret);
$accessTokenInfo = $oauth->getAccessToken(ApiUtils::getFullUrl(self::URL_ATOKEN, 'api'), null, $verifier);
ApiDebug::p('got access token info', $accessTokenInfo);
self::$_accessToken = $accessTokenInfo['oauth_token'];
self::$_accessSecret = $accessTokenInfo['oauth_token_secret'];
return $accessTokenInfo;
}