org.apache.bookkeeper.sasl.SASLClientAuthProvider Maven / Gradle / Ivy
/*
*
* 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.bookkeeper.sasl;
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import javax.security.auth.Subject;
import javax.security.sasl.SaslException;
import org.apache.bookkeeper.auth.AuthCallbacks;
import org.apache.bookkeeper.auth.AuthToken;
import org.apache.bookkeeper.auth.ClientAuthProvider;
import org.apache.bookkeeper.client.BKException;
import org.apache.bookkeeper.proto.ClientConnectionPeer;
import org.slf4j.LoggerFactory;
/**
* SASL Client Authentication Provider.
*/
public class SASLClientAuthProvider implements ClientAuthProvider {
private static final org.slf4j.Logger LOG = LoggerFactory.getLogger(SASLClientAuthProvider.class);
private SaslClientState client;
private final AuthCallbacks.GenericCallback completeCb;
SASLClientAuthProvider(ClientConnectionPeer addr, AuthCallbacks.GenericCallback completeCb,
Subject subject) {
this.completeCb = completeCb;
try {
SocketAddress remoteAddr = addr.getRemoteAddr();
String hostname;
if (remoteAddr instanceof InetSocketAddress) {
InetSocketAddress inetSocketAddress = (InetSocketAddress) remoteAddr;
hostname = inetSocketAddress.getHostName();
} else {
hostname = InetAddress.getLocalHost().getHostName();
}
client = new SaslClientState(hostname, subject);
if (LOG.isDebugEnabled()) {
LOG.debug("SASLClientAuthProvider Boot " + client + " for " + hostname);
}
} catch (IOException error) {
LOG.error("Error while booting SASL client", error);
completeCb.operationComplete(BKException.Code.UnauthorizedAccessException, null);
}
}
@Override
public void init(AuthCallbacks.GenericCallback cb) {
try {
if (client.hasInitialResponse()) {
byte[] response = client.evaluateChallenge(new byte[0]);
cb.operationComplete(BKException.Code.OK, AuthToken.wrap(response));
} else {
cb.operationComplete(BKException.Code.OK, AuthToken.wrap(new byte[0]));
}
} catch (SaslException err) {
LOG.error("Error on SASL client", err);
completeCb.operationComplete(BKException.Code.UnauthorizedAccessException, null);
}
}
@Override
public void process(AuthToken m, AuthCallbacks.GenericCallback cb) {
if (client.isComplete()) {
completeCb.operationComplete(BKException.Code.OK, null);
return;
}
try {
byte[] responseToken = m.getData();
byte[] response = client.evaluateChallenge(responseToken);
if (response == null) {
response = new byte[0];
}
cb.operationComplete(BKException.Code.OK, AuthToken.wrap(response));
if (client.isComplete()) {
completeCb.operationComplete(BKException.Code.OK, null);
}
} catch (SaslException err) {
LOG.error("Error on SASL client", err);
completeCb.operationComplete(BKException.Code.UnauthorizedAccessException, null);
}
}
}