/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.sshd.server.auth.hostbased;
import java.security.PublicKey;
import java.security.cert.X509Certificate;
import java.util.List;
import org.apache.sshd.common.config.keys.KeyUtils;
import org.apache.sshd.common.util.logging.AbstractLoggingBean;
import org.apache.sshd.server.session.ServerSession;
/**
* @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
*/
public class StaticHostBasedAuthenticator extends AbstractLoggingBean implements HostBasedAuthenticator {
private final boolean acceptance;
public StaticHostBasedAuthenticator(boolean acceptance) {
this.acceptance = acceptance;
}
public final boolean isAccepted() {
return acceptance;
}
@Override
public final boolean authenticate(ServerSession session, String username, PublicKey clientHostKey,
String clientHostName, String clientUsername, List<X509Certificate> certificates) {
boolean accepted = isAccepted();
if (accepted) {
handleAcceptance(session, username, clientHostKey, clientHostName, clientUsername, certificates);
} else {
handleRejection(session, username, clientHostKey, clientHostName, clientUsername, certificates);
}
return accepted;
}
protected void handleAcceptance(ServerSession session, String username, PublicKey clientHostKey,
String clientHostName, String clientUsername, List<X509Certificate> certificates) {
// accepting without really checking is dangerous, thus the warning
log.warn("authenticate({}[{}]: accepted without checking {}@{} key={} fingerprint={}",
username, session, clientUsername, clientHostName, KeyUtils.getKeyType(clientHostKey), KeyUtils.getFingerPrint(clientHostKey));
}
protected void handleRejection(ServerSession session, String username, PublicKey clientHostKey,
String clientHostName, String clientUsername, List<X509Certificate> certificates) {
if (log.isDebugEnabled()) {
log.debug("authenticate({}[{}]: rejected {}@{} key={} fingerprint={}",
username, session, clientUsername, clientHostName, KeyUtils.getKeyType(clientHostKey), KeyUtils.getFingerPrint(clientHostKey));
}
}
}