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/*******************************************************************************
* ============LICENSE_START=======================================================
* org.onap.dmaap
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*
*
*******************************************************************************/
package org.onap.dmaap.kafkaAuthorize;
import java.util.Map;
import org.apache.kafka.common.security.auth.KafkaPrincipal;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.onap.aaf.cadi.PropAccess;
import org.onap.dmaap.commonauth.kafka.base.authorization.AuthorizationProviderFactory;
import kafka.network.RequestChannel.Session;
import kafka.security.auth.Acl;
import kafka.security.auth.Authorizer;
import kafka.security.auth.Operation;
import kafka.security.auth.Resource;
import scala.collection.immutable.Set;
/**
* A trivial Kafka Authorizer for use with SSL and AAF
* Authentication/Authorization.
*
*/
public class KafkaCustomAuthorizer implements Authorizer {
private PropAccess access;
private static final Logger logger = LoggerFactory.getLogger(KafkaCustomAuthorizer.class);
// I'm assuming this is called BEFORE any usage...
@Override
public void configure(final Map<String, ?> arg0) {
// TODO Auto-generate method stub
}
@Override
public void addAcls(final Set<Acl> arg0, final Resource arg1) {
// TODO Auto-generated method stub
}
@Override
public boolean authorize(final Session arg0, final Operation arg1, final Resource arg2) {
if (arg0.principal() == null) {
return false;
}
String fullName = arg0.principal().getName();
fullName = fullName != null ? fullName.trim() : fullName;
String topicName = null;
String namspace = null;
String ins = null;
String type = null;
String action = null;
String kafkaactivity = arg1.name();
if (kafkaactivity.equals("Read")) {
action = "sub";
} else if (kafkaactivity.equals("Write")) {
action = "pub";
} else if (kafkaactivity.equals("Describe")) {
return true;
}
if (arg2.resourceType().name().equals("Topic")) {
topicName = arg2.name();
} else {
return true;
}
try {
if (null != topicName && topicName.indexOf(".") > 0) {
namspace = topicName.substring(0, topicName.lastIndexOf("."));
ins = namspace + ".topic";
type = ":topic." + topicName;
logger.info("^Event Received for topic " + topicName + " , User " + fullName + " , action = " + action);
}
if (null != fullName && fullName.equals("admin")) {
return true;
}
if (null != topicName) {
boolean hasResp = AuthorizationProviderFactory.getProviderFactory().getProvider()
.hasPermission(fullName, ins, type, action);
if (hasResp) {
logger.info("Successful Authorization for " + fullName + " on " + topicName + " for " + ins + "|"
+ type + "|" + action);
}
if (!hasResp) {
logger.info(fullName + " is not allowed in " + ins + "|" + type + "|" + action);
throw new Exception(fullName + " is not allowed in " + ins + "|" + type + "|" + action);
}
}
} catch (final Exception e) {
return false;
}
return true;
}
@Override
public void close() {
// TODO Auto-generated method stub
}
@Override
public scala.collection.immutable.Map<Resource, Set<Acl>> getAcls() {
// TODO Auto-generated method stub
return null;
}
@Override
public scala.collection.immutable.Map<Resource, Set<Acl>> getAcls(final KafkaPrincipal arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
public boolean removeAcls(final Resource arg0) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean removeAcls(final Set<Acl> arg0, final Resource arg1) {
// TODO Auto-generated method stub
return false;
}
public Set<Acl> getAcls(Resource arg0) {
// TODO Auto-generated method stub
return null;
}
}
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