/**
*
* Copyright (c) WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* 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.wso2.carbon.databridge.receiver.thrift;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.server.ServerContext;
import org.apache.thrift.server.TServer;
import org.apache.thrift.server.TServerEventHandler;
import org.apache.thrift.server.TThreadPoolServer;
import org.apache.thrift.transport.*;
import org.wso2.carbon.base.ServerConfiguration;
import org.wso2.carbon.databridge.commons.exception.TransportException;
import org.wso2.carbon.databridge.commons.thrift.service.general.ThriftEventTransmissionService;
import org.wso2.carbon.databridge.commons.thrift.service.secure.ThriftSecureEventTransmissionService;
import org.wso2.carbon.databridge.commons.thrift.utils.CommonThriftConstants;
import org.wso2.carbon.databridge.core.DataBridgeReceiverService;
import org.wso2.carbon.databridge.core.exception.DataBridgeException;
import org.wso2.carbon.databridge.core.internal.utils.DataBridgeConstants;
import org.wso2.carbon.databridge.receiver.thrift.conf.ThriftDataReceiverConfiguration;
import org.wso2.carbon.databridge.receiver.thrift.service.ThriftEventTransmissionServiceImpl;
import org.wso2.carbon.databridge.receiver.thrift.service.ThriftSecureEventTransmissionServiceImpl;
import javax.net.ssl.SSLServerSocket;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.UnknownHostException;
/**
* Carbon based implementation of the agent server
*/
public class ThriftDataReceiver {
private static final Log log = LogFactory.getLog(ThriftDataReceiver.class);
private DataBridgeReceiverService dataBridgeReceiverService;
private ThriftDataReceiverConfiguration thriftDataReceiverConfiguration;
private TServer authenticationServer;
private TServer dataReceiverServer;
/**
* Initialize Carbon Agent Server
*
* @param secureReceiverPort
* @param receiverPort
* @param dataBridgeReceiverService
*/
public ThriftDataReceiver(int secureReceiverPort, int receiverPort,
DataBridgeReceiverService dataBridgeReceiverService) {
this.dataBridgeReceiverService = dataBridgeReceiverService;
this.thriftDataReceiverConfiguration = new ThriftDataReceiverConfiguration(secureReceiverPort, receiverPort);
}
/**
* Initialize Carbon Agent Server
*
* @param receiverPort
* @param dataBridgeReceiverService
*/
public ThriftDataReceiver(int receiverPort,
DataBridgeReceiverService dataBridgeReceiverService) {
this.dataBridgeReceiverService = dataBridgeReceiverService;
this.thriftDataReceiverConfiguration = new ThriftDataReceiverConfiguration(receiverPort + CommonThriftConstants.SECURE_EVENT_RECEIVER_PORT_OFFSET, receiverPort);
}
/**
* Initialize Carbon Agent Server
*
* @param thriftDataReceiverConfiguration
*
* @param dataBridgeReceiverService
*/
public ThriftDataReceiver(ThriftDataReceiverConfiguration thriftDataReceiverConfiguration,
DataBridgeReceiverService dataBridgeReceiverService) {
this.dataBridgeReceiverService = dataBridgeReceiverService;
this.thriftDataReceiverConfiguration = thriftDataReceiverConfiguration;
}
/**
* To start the Agent server
*
* @throws org.wso2.carbon.databridge.core.exception.DataBridgeException
* if the agent server cannot be started
*/
public void start(String hostName)
throws DataBridgeException {
startSecureEventTransmission(hostName, thriftDataReceiverConfiguration.getSecureDataReceiverPort(),
thriftDataReceiverConfiguration.getSslProtocols(), thriftDataReceiverConfiguration.getCiphers(), dataBridgeReceiverService);
startEventTransmission(hostName, thriftDataReceiverConfiguration.getDataReceiverPort(), dataBridgeReceiverService);
}
private void startSecureEventTransmission(String hostName, int port, String sslProtocols, String ciphers,
DataBridgeReceiverService dataBridgeReceiverService)
throws DataBridgeException {
try {
String keyStore = dataBridgeReceiverService.getInitialConfig().getKeyStoreLocation();
if (keyStore == null) {
ServerConfiguration serverConfig = ServerConfiguration.getInstance();
keyStore = serverConfig.getFirstProperty("Security.KeyStore.Location");
if (keyStore == null) {
keyStore = System.getProperty("Security.KeyStore.Location");
if (keyStore == null) {
throw new DataBridgeException("Cannot start thrift agent server, not valid Security.KeyStore.Location is null");
}
}
}
String keyStorePassword = dataBridgeReceiverService.getInitialConfig().getKeyStorePassword();
if (keyStorePassword == null) {
ServerConfiguration serverConfig = ServerConfiguration.getInstance();
keyStorePassword = serverConfig.getFirstProperty("Security.KeyStore.Password");
if (keyStorePassword == null) {
keyStorePassword = System.getProperty("Security.KeyStore.Password");
if (keyStorePassword == null) {
throw new DataBridgeException("Cannot start thrift agent server, not valid Security.KeyStore.Password is null ");
}
}
}
startSecureEventTransmission(hostName, port, sslProtocols, ciphers, keyStore, keyStorePassword, dataBridgeReceiverService);
} catch (TransportException e) {
throw new DataBridgeException("Cannot start agent server on port " + port, e);
} catch (UnknownHostException e) {
//ignore since localhost
}
}
protected void startSecureEventTransmission(String hostName, int port, String sslProtocols, String ciphers, String keyStore,
String keyStorePassword,
DataBridgeReceiverService dataBridgeReceiverService)
throws TransportException, UnknownHostException {
TSSLTransportFactory.TSSLTransportParameters params =
new TSSLTransportFactory.TSSLTransportParameters();
params.setKeyStore(keyStore, keyStorePassword);
TServerSocket serverTransport;
try {
InetAddress inetAddress = InetAddress.getByName(hostName);
serverTransport = TSSLTransportFactory.getServerSocket(
port, DataBridgeConstants.CLIENT_TIMEOUT_MS, inetAddress, params);
SSLServerSocket sslServerSocket = (javax.net.ssl.SSLServerSocket) serverTransport.getServerSocket();
if (sslProtocols != null && sslProtocols.length() != 0) {
String [] sslProtocolsArray = sslProtocols.split(",");
sslServerSocket.setEnabledProtocols(sslProtocolsArray);
}
if (ciphers != null && ciphers.length() != 0) {
String [] ciphersArray = ciphers.split(",");
sslServerSocket.setEnabledCipherSuites(ciphersArray);
}
log.info("Thrift Server started at " + hostName);
} catch (TTransportException e) {
throw new TransportException("Thrift transport exception occurred ", e);
}
ThriftSecureEventTransmissionService.Processor<ThriftSecureEventTransmissionServiceImpl> processor =
new ThriftSecureEventTransmissionService.Processor<ThriftSecureEventTransmissionServiceImpl>(
new ThriftSecureEventTransmissionServiceImpl(dataBridgeReceiverService));
authenticationServer = new TThreadPoolServer(
new TThreadPoolServer.Args(serverTransport).processor(processor));
if (log.isDebugEnabled()) {
authenticationServer.setServerEventHandler(new LoggingServerEventHandler());
}
Thread thread = new Thread(new ServerThread(authenticationServer));
log.info("Thrift SSL port : " + port);
thread.start();
}
protected void startEventTransmission(String hostName, int port,
DataBridgeReceiverService dataBridgeReceiverService)
throws DataBridgeException {
try {
TServerSocket serverTransport = new TServerSocket(
new InetSocketAddress(hostName, port));
ThriftEventTransmissionService.Processor<ThriftEventTransmissionServiceImpl> processor =
new ThriftEventTransmissionService.Processor<ThriftEventTransmissionServiceImpl>(
new ThriftEventTransmissionServiceImpl(dataBridgeReceiverService));
dataReceiverServer = new TThreadPoolServer(
new TThreadPoolServer.Args(serverTransport).processor(processor));
Thread thread = new Thread(new ServerThread(dataReceiverServer));
log.info("Thrift port : " + port);
thread.start();
} catch (TTransportException e) {
throw new DataBridgeException("Cannot start Thrift server on port " + port +
" on host " + hostName, e);
}
}
/**
* This event handler for thrift servers is intended to log IP and port of the peers connected to the server
*/
static class LoggingServerEventHandler implements TServerEventHandler {
@Override
public void preServe() {
}
@Override
public ServerContext createContext(TProtocol input, TProtocol output) {
log.debug("Client " + ((TSocket)input.getTransport()).getSocket().getRemoteSocketAddress().toString()
+" connected to thrift authentication service.");
return null;
}
@Override
public void deleteContext(ServerContext serverContext, TProtocol input, TProtocol output) {
log.debug("Client " + ((TSocket)input.getTransport()).getSocket().getRemoteSocketAddress().toString()
+ " disconnected from thrift authentication service.");
}
@Override
public void processContext(ServerContext serverContext, TTransport inputTransport, TTransport outputTransport) {
}
}
/**
* To stop the server
*/
public void stop() {
authenticationServer.stop();
dataReceiverServer.stop();
}
static class ServerThread implements Runnable {
private TServer server;
ServerThread(TServer server) {
this.server = server;
}
public void run() {
this.server.serve();
}
}
}