/*
* 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.keys;
import org.jboss.logging.Logger;
import org.keycloak.common.util.KeyUtils;
import org.keycloak.common.util.Time;
import java.security.KeyPair;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.cert.X509Certificate;
import java.util.Collections;
import java.util.List;
/**
* @author <a href="mailto:sthorger@redhat.com">Stian Thorgersen</a>
*/
public class FailsafeRsaKeyProvider implements RsaKeyProvider {
private static final Logger logger = Logger.getLogger(FailsafeRsaKeyProvider.class);
private static String KID;
private static KeyPair KEY_PAIR;
private static long EXPIRES;
private KeyPair keyPair;
private String kid;
public FailsafeRsaKeyProvider() {
logger.errorv("No active keys found, using failsafe provider, please login to admin console to add keys. Clustering is not supported.");
synchronized (FailsafeRsaKeyProvider.class) {
if (EXPIRES < Time.currentTime()) {
KEY_PAIR = KeyUtils.generateRsaKeyPair(2048);
KID = KeyUtils.createKeyId(KEY_PAIR.getPublic());
EXPIRES = Time.currentTime() + 60 * 10;
if (EXPIRES > 0) {
logger.warnv("Keys expired, re-generated kid={0}", KID);
}
}
kid = KID;
keyPair = KEY_PAIR;
}
}
@Override
public String getKid() {
return kid;
}
@Override
public PrivateKey getPrivateKey() {
return keyPair.getPrivate();
}
@Override
public PublicKey getPublicKey(String kid) {
return kid.equals(this.kid) ? keyPair.getPublic() : null;
}
@Override
public X509Certificate getCertificate(String kid) {
return null;
}
@Override
public List<RsaKeyMetadata> getKeyMetadata() {
return Collections.emptyList();
}
@Override
public void close() {
}
}