307 lines
10 KiB
Java
307 lines
10 KiB
Java
/**
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*
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* Copyright the original author or authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.bytestreams.socks5;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertNotNull;
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import static org.junit.Assert.assertTrue;
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import static org.junit.Assert.fail;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.net.Socket;
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import org.jivesoftware.smack.SmackException;
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import org.jivesoftware.smack.XMPPConnection;
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import org.jivesoftware.smack.XMPPException;
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import org.jivesoftware.smack.XMPPException.XMPPErrorException;
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import org.jivesoftware.smack.packet.EmptyResultIQ;
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import org.jivesoftware.smack.packet.ErrorIQ;
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import org.jivesoftware.smack.packet.IQ;
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import org.jivesoftware.smack.packet.XMPPError;
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import org.jivesoftware.smackx.bytestreams.socks5.packet.Bytestream;
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import org.jivesoftware.smackx.bytestreams.socks5.packet.Bytestream.StreamHost;
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import org.jivesoftware.util.ConnectionUtils;
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import org.jivesoftware.util.Protocol;
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import org.jivesoftware.util.Verification;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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import org.jxmpp.jid.DomainBareJid;
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import org.jxmpp.jid.EntityFullJid;
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import org.jxmpp.jid.JidTestUtil;
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/**
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* Test for Socks5ClientForInitiator class.
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*
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* @author Henning Staib
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*/
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public class Socks5ClientForInitiatorTest {
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// settings
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static final EntityFullJid initiatorJID = JidTestUtil.DUMMY_AT_EXAMPLE_ORG_SLASH_DUMMYRESOURCE;
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static final EntityFullJid targetJID = JidTestUtil.FULL_JID_1_RESOURCE_1;
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static final DomainBareJid xmppServer = JidTestUtil.DOMAIN_BARE_JID_1;
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static final DomainBareJid proxyJID = JidTestUtil.MUC_EXAMPLE_ORG;
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String proxyAddress = "127.0.0.1";
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int proxyPort = 7890;
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String sessionID = "session_id";
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// protocol verifier
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Protocol protocol;
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// mocked XMPP connection
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XMPPConnection connection;
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/**
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* Initialize fields used in the tests.
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* @throws XMPPException
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* @throws SmackException
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* @throws InterruptedException
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*/
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@Before
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public void setup() throws XMPPException, SmackException, InterruptedException {
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// build protocol verifier
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protocol = new Protocol();
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// create mocked XMPP connection
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connection = ConnectionUtils.createMockedConnection(protocol, initiatorJID, xmppServer);
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}
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/**
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* If the target is not connected to the local SOCKS5 proxy an exception should be thrown.
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*
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* @throws Exception should not happen
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*/
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@Test
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public void shouldFailIfTargetIsNotConnectedToLocalSocks5Proxy() throws Exception {
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// start a local SOCKS5 proxy
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Socks5Proxy.setLocalSocks5ProxyPort(proxyPort);
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Socks5Proxy socks5Proxy = Socks5Proxy.getSocks5Proxy();
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socks5Proxy.start();
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// build stream host information for local SOCKS5 proxy
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StreamHost streamHost = new StreamHost(connection.getUser(),
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socks5Proxy.getLocalAddresses().get(0),
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socks5Proxy.getPort());
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// create digest to get the socket opened by target
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String digest = Socks5Utils.createDigest(sessionID, initiatorJID, targetJID);
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Socks5ClientForInitiator socks5Client = new Socks5ClientForInitiator(streamHost, digest,
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connection, sessionID, targetJID);
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try {
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socks5Client.getSocket(10000);
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fail("exception should be thrown");
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}
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catch (SmackException e) {
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assertTrue(e.getMessage().contains("target is not connected to SOCKS5 proxy"));
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protocol.verifyAll(); // assert no XMPP messages were sent
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}
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socks5Proxy.stop();
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}
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/**
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* Initiator and target should successfully connect to the local SOCKS5 proxy.
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*
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* @throws Exception should not happen
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*/
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@Test
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public void shouldSuccessfullyConnectThroughLocalSocks5Proxy() throws Exception {
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// start a local SOCKS5 proxy
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Socks5Proxy.setLocalSocks5ProxyPort(proxyPort);
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Socks5Proxy socks5Proxy = Socks5Proxy.getSocks5Proxy();
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socks5Proxy.start();
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// test data
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final byte[] data = new byte[] { 1, 2, 3 };
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// create digest
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final String digest = Socks5Utils.createDigest(sessionID, initiatorJID, targetJID);
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// allow connection of target with this digest
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socks5Proxy.addTransfer(digest);
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// build stream host information
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final StreamHost streamHost = new StreamHost(connection.getUser(),
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socks5Proxy.getLocalAddresses().get(0),
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socks5Proxy.getPort());
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// target connects to local SOCKS5 proxy
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Thread targetThread = new Thread() {
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@Override
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public void run() {
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try {
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Socks5Client targetClient = new Socks5Client(streamHost, digest);
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Socket socket = targetClient.getSocket(10000);
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socket.getOutputStream().write(data);
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}
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catch (Exception e) {
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fail(e.getMessage());
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}
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}
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};
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targetThread.start();
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Thread.sleep(200);
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// initiator connects
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Socks5ClientForInitiator socks5Client = new Socks5ClientForInitiator(streamHost, digest,
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connection, sessionID, targetJID);
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Socket socket = socks5Client.getSocket(10000);
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// verify test data
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InputStream in = socket.getInputStream();
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for (int i = 0; i < data.length; i++) {
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assertEquals(data[i], in.read());
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}
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targetThread.join();
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protocol.verifyAll(); // assert no XMPP messages were sent
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socks5Proxy.removeTransfer(digest);
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socks5Proxy.stop();
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}
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/**
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* If the initiator can connect to a SOCKS5 proxy but activating the stream fails an exception
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* should be thrown.
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*
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* @throws Exception should not happen
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*/
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@Test
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public void shouldFailIfActivateSocks5ProxyFails() throws Exception {
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// build error response as reply to the stream activation
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XMPPError xmppError = new XMPPError(XMPPError.Condition.internal_server_error);
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IQ error = new ErrorIQ(xmppError);
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error.setFrom(proxyJID);
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error.setTo(initiatorJID);
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protocol.addResponse(error, Verification.correspondingSenderReceiver,
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Verification.requestTypeSET);
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// start a local SOCKS5 proxy
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Socks5TestProxy socks5Proxy = Socks5TestProxy.getProxy(proxyPort);
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socks5Proxy.start();
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StreamHost streamHost = new StreamHost(proxyJID,
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socks5Proxy.getAddress(), socks5Proxy.getPort());
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// create digest to get the socket opened by target
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String digest = Socks5Utils.createDigest(sessionID, initiatorJID, targetJID);
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Socks5ClientForInitiator socks5Client = new Socks5ClientForInitiator(streamHost, digest,
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connection, sessionID, targetJID);
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try {
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socks5Client.getSocket(10000);
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fail("exception should be thrown");
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}
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catch (XMPPErrorException e) {
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assertTrue(XMPPError.Condition.internal_server_error.equals(e.getXMPPError().getCondition()));
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protocol.verifyAll();
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}
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socks5Proxy.stop();
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}
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/**
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* Target and initiator should successfully connect to a "remote" SOCKS5 proxy and the initiator
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* activates the bytestream.
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*
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* @throws Exception should not happen
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*/
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@Test
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public void shouldSuccessfullyEstablishConnectionAndActivateSocks5Proxy() throws Exception {
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// build activation confirmation response
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IQ activationResponse = new EmptyResultIQ();
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activationResponse.setFrom(proxyJID);
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activationResponse.setTo(initiatorJID);
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protocol.addResponse(activationResponse, Verification.correspondingSenderReceiver,
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Verification.requestTypeSET, new Verification<Bytestream, IQ>() {
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public void verify(Bytestream request, IQ response) {
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// verify that the correct stream should be activated
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assertNotNull(request.getToActivate());
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assertEquals(targetJID, request.getToActivate().getTarget());
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}
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});
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// start a local SOCKS5 proxy
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Socks5TestProxy socks5Proxy = Socks5TestProxy.getProxy(proxyPort);
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socks5Proxy.start();
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StreamHost streamHost = new StreamHost(proxyJID,
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socks5Proxy.getAddress(), socks5Proxy.getPort());
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// create digest to get the socket opened by target
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String digest = Socks5Utils.createDigest(sessionID, initiatorJID, targetJID);
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Socks5ClientForInitiator socks5Client = new Socks5ClientForInitiator(streamHost, digest,
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connection, sessionID, targetJID);
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Socket initiatorSocket = socks5Client.getSocket(10000);
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InputStream in = initiatorSocket.getInputStream();
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Socket targetSocket = socks5Proxy.getSocket(digest);
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OutputStream out = targetSocket.getOutputStream();
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// verify test data
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for (int i = 0; i < 10; i++) {
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out.write(i);
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assertEquals(i, in.read());
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}
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protocol.verifyAll();
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initiatorSocket.close();
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targetSocket.close();
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socks5Proxy.stop();
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}
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/**
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* Reset default port for local SOCKS5 proxy.
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*/
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@After
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public void cleanup() {
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Socks5Proxy.setLocalSocks5ProxyPort(7777);
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}
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}
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