90 lines
2.4 KiB
Java
90 lines
2.4 KiB
Java
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/*
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* Copyright 2016 Red Hat, Inc. and/or its affiliates
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* and other contributors as indicated by the @author tags.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.keycloak.keys;
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import org.jboss.logging.Logger;
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import org.keycloak.common.util.KeyUtils;
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import org.keycloak.common.util.Time;
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import org.keycloak.models.utils.KeycloakModelUtils;
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import javax.crypto.SecretKey;
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import java.util.Collections;
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import java.util.List;
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/**
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* @author <a href="mailto:sthorger@redhat.com">Stian Thorgersen</a>
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*/
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public class FailsafeHmacKeyProvider implements HmacKeyProvider {
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private static final Logger logger = Logger.getLogger(FailsafeHmacKeyProvider.class);
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private static String KID;
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private static SecretKey KEY;
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private static long EXPIRES;
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private SecretKey key;
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private String kid;
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public FailsafeHmacKeyProvider() {
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logger.errorv("No active keys found, using failsafe provider, please login to admin console to add keys. Clustering is not supported.");
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synchronized (FailsafeHmacKeyProvider.class) {
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if (EXPIRES < Time.currentTime()) {
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KEY = KeyUtils.loadSecretKey(KeycloakModelUtils.generateSecret(32));
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KID = KeycloakModelUtils.generateId();
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EXPIRES = Time.currentTime() + 60 * 10;
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if (EXPIRES > 0) {
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logger.warnv("Keys expired, re-generated kid={0}", KID);
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}
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}
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kid = KID;
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key = KEY;
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}
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}
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@Override
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public String getKid() {
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return kid;
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}
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@Override
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public SecretKey getSecretKey() {
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return key;
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}
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@Override
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public SecretKey getSecretKey(String kid) {
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return kid.equals(this.kid) ? key : null;
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}
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@Override
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public List<HmacKeyMetadata> getKeyMetadata() {
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return Collections.emptyList();
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}
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@Override
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public void close() {
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}
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}
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