/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.test.integration.security.loginmodules.negotiation;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.EOFException;
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.security.PrivilegedAction;
import java.security.PrivilegedActionException;
import javax.security.auth.Subject;
import javax.security.auth.login.Configuration;
import javax.security.auth.login.LoginContext;
import javax.security.auth.login.LoginException;
import org.ietf.jgss.GSSContext;
import org.ietf.jgss.GSSCredential;
import org.ietf.jgss.GSSException;
import org.ietf.jgss.GSSManager;
import org.ietf.jgss.MessageProp;
import org.jboss.as.arquillian.api.ServerSetupTask;
import org.jboss.as.arquillian.container.ManagementClient;
import org.jboss.as.test.integration.security.common.Krb5LoginConfiguration;
import org.jboss.as.test.shared.TimeoutUtil;
import org.jboss.logging.Logger;
import org.jboss.security.auth.callback.UsernamePasswordHandler;
/**
* A sample server application for testing Kerberos identity propagation.
*
* @author Josef Cacek
*/
public class GSSTestServer implements ServerSetupTask, Runnable {
private static Logger LOGGER = Logger.getLogger(GSSTestServer.class);
private static final int ADJUSTED_SECOND = TimeoutUtil.adjust(1000);
private volatile boolean serverStarted = false;
// Public methods --------------------------------------------------------
/**
* Starts instance of this {@link GSSTestServer} in the new Thread.
*
* @param managementClient
* @param containerId
* @throws Exception
* @see org.jboss.as.arquillian.api.ServerSetupTask#setup(org.jboss.as.arquillian.container.ManagementClient,
* java.lang.String)
*/
public void setup(ManagementClient managementClient, String containerId) throws Exception {
new Thread(this).start();
int i = 0;
while (!serverStarted && i < 20) {
i++;
try {
Thread.sleep(ADJUSTED_SECOND);
} catch (InterruptedException e) {
LOGGER.info("Interrupted", e);
}
}
final Socket socket = new Socket();
try {
LOGGER.debug("Waiting for the GSSTestServer.");
socket.connect(new InetSocketAddress(InetAddress.getLoopbackAddress(), GSSTestConstants.PORT), 20 * ADJUSTED_SECOND);
LOGGER.debug("GSSTestServer is up");
} finally {
try {
socket.close();
} catch (IOException e) {
LOGGER.error("Problem occurred during closing socket", e);
}
}
}
/**
* Stops instance on this {@link GSSTestServer}.
*
* @param managementClient
* @param containerId
* @throws Exception
* @see org.jboss.as.arquillian.api.ServerSetupTask#tearDown(org.jboss.as.arquillian.container.ManagementClient,
* java.lang.String)
*/
public void tearDown(ManagementClient managementClient, String containerId) throws Exception {
stop();
}
/**
*
* @see java.lang.Runnable#run()
*/
public void run() {
try {
start();
} catch (LoginException e) {
LOGGER.error("LoginException: ", e);
throw new RuntimeException(e);
} catch (PrivilegedActionException e) {
LOGGER.error("PrivilegedActionException: ", e);
throw new RuntimeException(e);
} catch (IOException e) {
LOGGER.error("IOException: ", e);
throw new RuntimeException(e);
}
}
/**
* The Main. It sends stop command to a running {@link GSSTestServer} instance when the first argument provided is "stop",
* otherwise it starts a new server instance.
*
* @param args
*/
public static void main(String[] args) {
if (args.length > 0 && "stop".equals(args[0])) {
stop();
} else {
final GSSTestServer gssTestServer = new GSSTestServer();
try {
gssTestServer.start();
} catch (Exception e) {
LOGGER.error("Problem occurred", e);
System.exit(1);
}
}
}
// Private methods -------------------------------------------------------
/**
* Sends STOP ({@link GSSTestConstants#CMD_STOP}) command to a running server.
*/
private static void stop() {
LOGGER.debug("Sending STOP command GSSTestServer.");
// Create an unbound socket
final Socket socket = new Socket();
try {
socket.connect(new InetSocketAddress(InetAddress.getLoopbackAddress(), GSSTestConstants.PORT),
GSSTestConstants.SOCKET_TIMEOUT);
DataOutputStream dos = new DataOutputStream(socket.getOutputStream());
dos.writeInt(GSSTestConstants.CMD_STOP);
dos.flush();
LOGGER.debug("STOP command sent.");
} catch (IOException e) {
LOGGER.error("Problem occurred during sending stop command", e);
} finally {
try {
socket.close();
} catch (IOException e) {
LOGGER.error("Problem occurred during closing socket", e);
}
}
}
/**
* Authenticates the server in Kerberos KDC and starts the {@link ServerAction} instance as the authenticated subject.
*
* @throws LoginException
* @throws PrivilegedActionException
* @throws IOException
*/
private void start() throws LoginException, PrivilegedActionException, IOException {
LOGGER.debug("Starting GSSTestServer - login");
// Use our custom configuration to avoid reliance on external config
Configuration.setConfiguration(new Krb5LoginConfiguration(null, null, true));
// 1. Authenticate to Kerberos.
final LoginContext lc = new LoginContext("foo", new UsernamePasswordHandler(GSSTestConstants.PRINCIPAL,
GSSTestConstants.PASSWORD));
lc.login();
LOGGER.debug("Authentication succeed");
// 2. Perform the work as authenticated Subject.
final String finishMsg = Subject.doAs(lc.getSubject(), new ServerAction());
LOGGER.info("Server stopped with result: " + (finishMsg == null ? "OK" : finishMsg));
lc.logout();
}
// Embedded classes ------------------------------------------------------
/**
* A ServerAction which creates a ServerSocket and waits for clients. It sends back the authenticated client name.
*
* @author Josef Cacek
*/
private class ServerAction implements PrivilegedAction<String> {
public String run() {
final GSSManager gssManager = GSSManager.getInstance();
try {
final ServerSocket serverSocket = new ServerSocket(GSSTestConstants.PORT);
LOGGER.info("Server started on port " + GSSTestConstants.PORT);
int command = GSSTestConstants.CMD_NOOP;
serverStarted = true;
do {
Socket socket = null;
GSSContext gssContext = null;
try {
LOGGER.debug("Waiting for client connection");
socket = serverSocket.accept();
LOGGER.debug("Client connected");
gssContext = gssManager.createContext((GSSCredential) null);
final DataInputStream dataInputStream = new DataInputStream(socket.getInputStream());
final DataOutputStream dataOutputStream = new DataOutputStream(socket.getOutputStream());
command = dataInputStream.readInt();
LOGGER.debug("Command code: " + command);
if (command == GSSTestConstants.CMD_NAME) {
while (!gssContext.isEstablished()) {
final byte[] inToken = new byte[dataInputStream.readInt()];
dataInputStream.readFully(inToken);
final byte[] outToken = gssContext.acceptSecContext(inToken, 0, inToken.length);
if (outToken != null) {
dataOutputStream.writeInt(outToken.length);
dataOutputStream.write(outToken);
dataOutputStream.flush();
}
}
final String clientName = gssContext.getSrcName().toString();
LOGGER.info("Context Established with Client " + clientName);
//encrypt
final MessageProp msgProp = new MessageProp(true);
final byte[] clientNameBytes = clientName.getBytes(GSSTestConstants.CHAR_ENC);
final byte[] outToken = gssContext.wrap(clientNameBytes, 0, clientNameBytes.length, msgProp);
dataOutputStream.writeInt(outToken.length);
dataOutputStream.write(outToken);
dataOutputStream.flush();
LOGGER.info("Client name was returned as the token value.");
}
} catch (EOFException e) {
LOGGER.info("Client didn't send a correct message.");
} catch (IOException e) {
LOGGER.error("IOException occurred", e);
} catch (GSSException e) {
LOGGER.error("GSSException occurred", e);
} finally {
if (gssContext != null) {
try {
gssContext.dispose();
} catch (GSSException e) {
LOGGER.error("Problem occurred during disposing GSS context", e);
}
}
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
LOGGER.error("Problem occurred during closing a Socket", e);
}
}
}
} while (command != GSSTestConstants.CMD_STOP);
LOGGER.info("Stop command received.");
} catch (IOException e) {
LOGGER.error("IOException occurred", e);
return e.getMessage();
}
return null;
}
}
}