protected boolean validateRecaptcha(
ValidationContext context, boolean success, String captcha, String secret) {
HttpClient httpClient =
context.getSession().getProvider(HttpClientProvider.class).getHttpClient();
HttpPost post = new HttpPost("https://www.google.com/recaptcha/api/siteverify");
List<NameValuePair> formparams = new LinkedList<>();
formparams.add(new BasicNameValuePair("secret", secret));
formparams.add(new BasicNameValuePair("response", captcha));
formparams.add(new BasicNameValuePair("remoteip", context.getConnection().getRemoteAddr()));
try {
UrlEncodedFormEntity form = new UrlEncodedFormEntity(formparams, "UTF-8");
post.setEntity(form);
HttpResponse response = httpClient.execute(post);
InputStream content = response.getEntity().getContent();
try {
Map json = JsonSerialization.readValue(content, Map.class);
Object val = json.get("success");
success = Boolean.TRUE.equals(val);
} finally {
content.close();
}
} catch (Exception e) {
logger.error("Recaptcha failed", e);
}
return success;
}
@Override
public void validate(ValidationContext context) {
MultivaluedMap<String, String> formData = context.getHttpRequest().getDecodedFormParameters();
List<FormMessage> errors = new ArrayList<>();
boolean success = false;
context.getEvent().detail(Details.REGISTER_METHOD, "form");
String captcha = formData.getFirst(G_RECAPTCHA_RESPONSE);
if (!Validation.isBlank(captcha)) {
AuthenticatorConfigModel captchaConfig = context.getAuthenticatorConfig();
String secret = captchaConfig.getConfig().get(SITE_SECRET);
success = validateRecaptcha(context, success, captcha, secret);
}
if (success) {
context.success();
} else {
errors.add(new FormMessage(null, Messages.RECAPTCHA_FAILED));
formData.remove(G_RECAPTCHA_RESPONSE);
context.getEvent().error(Errors.INVALID_REGISTRATION);
context.validationError(formData, errors);
return;
}
}