/*
* Copyright (C) 2015 Square, Inc.
*
* 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 keywhiz.service.filters;
import com.google.common.net.HttpHeaders;
import java.io.IOException;
import java.util.Optional;
import javax.inject.Inject;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerResponseContext;
import javax.ws.rs.container.ContainerResponseFilter;
import javax.ws.rs.core.Cookie;
import keywhiz.auth.User;
import keywhiz.auth.cookie.CookieAuthenticator;
import keywhiz.auth.cookie.CookieConfig;
import keywhiz.auth.cookie.SessionCookie;
import keywhiz.service.resources.admin.SessionLoginResource;
/** Checks for valid session cookies on requests and sets a newer cookie. */
public class CookieRenewingFilter implements ContainerResponseFilter {
private final CookieConfig sessionCookieConfig;
private final CookieAuthenticator authenticator;
private final SessionLoginResource sessionLoginResource;
@Inject public CookieRenewingFilter(@SessionCookie CookieConfig sessionCookieConfig,
CookieAuthenticator authenticator, SessionLoginResource sessionLoginResource) {
this.sessionCookieConfig = sessionCookieConfig;
this.authenticator = authenticator;
this.sessionLoginResource = sessionLoginResource;
}
/**
* If the user has a valid session token, set a new session token. The new one should have a later
* expiration time.
*/
@Override public void filter(ContainerRequestContext request, ContainerResponseContext response)
throws IOException {
String sessionCookieName = sessionCookieConfig.getName();
// If the response will be setting a session cookie, don't overwrite it; just let it go.
if (response.getCookies().containsKey(sessionCookieName)) {
return;
}
// If the request doesn't have a session cookie, we're not going to renew one.
if (!request.getCookies().containsKey(sessionCookieName)) {
return;
}
Cookie requestCookie = request.getCookies().get(sessionCookieName);
Optional<User> optionalUser = authenticator.authenticate(requestCookie);
if (optionalUser.isPresent()) {
sessionLoginResource.cookiesForUser(optionalUser.get())
.forEach(c -> response.getHeaders().add(HttpHeaders.SET_COOKIE, c));
}
}
}