/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.keycloak.examples.authenticator;
import org.jboss.resteasy.spi.HttpResponse;
import org.jboss.resteasy.spi.ResteasyProviderFactory;
import org.keycloak.authentication.AuthenticationFlowContext;
import org.keycloak.authentication.AuthenticationFlowError;
import org.keycloak.authentication.Authenticator;
import org.keycloak.common.util.ServerCookie;
import org.keycloak.models.AuthenticatorConfigModel;
import org.keycloak.models.KeycloakSession;
import org.keycloak.models.RealmModel;
import org.keycloak.models.UserCredentialModel;
import org.keycloak.models.UserModel;
import javax.ws.rs.core.Cookie;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import java.net.URI;
/**
* @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
* @version $Revision: 1 $
*/
public class SecretQuestionAuthenticator implements Authenticator {
public static final String CREDENTIAL_TYPE = "secret_question";
protected boolean hasCookie(AuthenticationFlowContext context) {
Cookie cookie = context.getHttpRequest().getHttpHeaders().getCookies().get("SECRET_QUESTION_ANSWERED");
boolean result = cookie != null;
if (result) {
System.out.println("Bypassing secret question because cookie as set");
}
return result;
}
@Override
public void authenticate(AuthenticationFlowContext context) {
if (hasCookie(context)) {
context.success();
return;
}
Response challenge = context.form().createForm("secret-question.ftl");
context.challenge(challenge);
}
@Override
public void action(AuthenticationFlowContext context) {
MultivaluedMap<String, String> formData = context.getHttpRequest().getDecodedFormParameters();
if (formData.containsKey("cancel")) {
context.cancelLogin();
return;
}
boolean validated = validateAnswer(context);
if (!validated) {
Response challenge = context.form()
.setError("badSecret")
.createForm("secret-question.ftl");
context.failureChallenge(AuthenticationFlowError.INVALID_CREDENTIALS, challenge);
return;
}
setCookie(context);
context.success();
}
protected void setCookie(AuthenticationFlowContext context) {
AuthenticatorConfigModel config = context.getAuthenticatorConfig();
int maxCookieAge = 60 * 60 * 24 * 30; // 30 days
if (config != null) {
maxCookieAge = Integer.valueOf(config.getConfig().get("cookie.max.age"));
}
URI uri = context.getUriInfo().getBaseUriBuilder().path("realms").path(context.getRealm().getName()).build();
addCookie("SECRET_QUESTION_ANSWERED", "true",
uri.getRawPath(),
null, null,
maxCookieAge,
false, true);
}
public static void addCookie(String name, String value, String path, String domain, String comment, int maxAge, boolean secure, boolean httpOnly) {
HttpResponse response = ResteasyProviderFactory.getContextData(HttpResponse.class);
StringBuffer cookieBuf = new StringBuffer();
ServerCookie.appendCookieValue(cookieBuf, 1, name, value, path, domain, comment, maxAge, secure, httpOnly);
String cookie = cookieBuf.toString();
response.getOutputHeaders().add(HttpHeaders.SET_COOKIE, cookie);
}
protected boolean validateAnswer(AuthenticationFlowContext context) {
MultivaluedMap<String, String> formData = context.getHttpRequest().getDecodedFormParameters();
String secret = formData.getFirst("secret_answer");
UserCredentialModel input = new UserCredentialModel();
input.setType(SecretQuestionCredentialProvider.SECRET_QUESTION);
input.setValue(secret);
return context.getSession().userCredentialManager().isValid(context.getRealm(), context.getUser(), input);
}
@Override
public boolean requiresUser() {
return true;
}
@Override
public boolean configuredFor(KeycloakSession session, RealmModel realm, UserModel user) {
return session.userCredentialManager().isConfiguredFor(realm, user, SecretQuestionCredentialProvider.SECRET_QUESTION);
}
@Override
public void setRequiredActions(KeycloakSession session, RealmModel realm, UserModel user) {
user.addRequiredAction(SecretQuestionRequiredAction.PROVIDER_ID);
}
@Override
public void close() {
}
}