RainLoop / rainloop-webmail

  */

function recaptcha_check_answer ($privkey, $remoteip, $challenge, $response, $extra_params = array())

{

	if ($privkey == null || $privkey == '') {

		$recaptcha_response = new ReCaptchaResponse();

		$recaptcha_response->is_valid = false;

		$recaptcha_response->error = 'To use reCAPTCHA you must get an API key from <a href=\'https://www.google.com/recaptcha/admin/create\'>https://www.google.com/recaptcha/admin/create</a>';

		return $recaptcha_response;

	}

	if ($remoteip == null || $remoteip == '') {

		$recaptcha_response = new ReCaptchaResponse();

		return $recaptcha_response;

	}

	if ($remoteip == null || $remoteip == '') {

		$recaptcha_response = new ReCaptchaResponse();

		$recaptcha_response->is_valid = false;

		$recaptcha_response->error = 'For security reasons, you must pass the remote ip to reCAPTCHA';

		return $recaptcha_response;

	}

	//discard spam submissions

	if ($challenge == null || strlen($challenge) == 0 || $response == null || strlen($response) == 0) {