166 lines
6.4 KiB
Java
166 lines
6.4 KiB
Java
/**
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*
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* Copyright 2017 Paul Schaub
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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.jingle_s5b;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import java.util.WeakHashMap;
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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.packet.IQ;
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import org.jivesoftware.smackx.bytestreams.BytestreamListener;
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import org.jivesoftware.smackx.bytestreams.BytestreamSession;
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import org.jivesoftware.smackx.bytestreams.socks5.Socks5BytestreamManager;
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import org.jivesoftware.smackx.bytestreams.socks5.Socks5Utils;
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import org.jivesoftware.smackx.bytestreams.socks5.packet.Bytestream;
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import org.jivesoftware.smackx.jingle.AbstractJingleTransportManager;
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import org.jivesoftware.smackx.jingle.JingleTransportManager;
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import org.jivesoftware.smackx.jingle.element.Jingle;
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import org.jivesoftware.smackx.jingle.element.JingleContentDescription;
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import org.jivesoftware.smackx.jingle.element.JingleContentTransport;
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import org.jivesoftware.smackx.jingle.provider.JingleContentTransportProvider;
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import org.jivesoftware.smackx.jingle_s5b.elements.JingleS5BTransport;
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import org.jivesoftware.smackx.jingle_s5b.elements.JingleS5BTransportCandidate;
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import org.jivesoftware.smackx.jingle_s5b.provider.JingleS5BTransportProvider;
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import org.jxmpp.jid.FullJid;
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import org.jxmpp.jid.Jid;
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/**
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* Manager for JingleSocks5BytestreamTransports.
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*/
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public final class JingleS5BTransportManager extends AbstractJingleTransportManager<JingleS5BTransport> {
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private static final WeakHashMap<XMPPConnection, JingleS5BTransportManager> INSTANCES = new WeakHashMap<>();
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private JingleS5BTransportManager(XMPPConnection connection) {
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super(connection);
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}
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public static JingleS5BTransportManager getInstanceFor(XMPPConnection connection) {
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JingleS5BTransportManager manager = INSTANCES.get(connection);
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if (manager == null) {
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manager = new JingleS5BTransportManager(connection);
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INSTANCES.put(connection, manager);
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}
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return manager;
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}
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public List<Bytestream.StreamHost> getAvailableStreamHosts() throws XMPPException.XMPPErrorException, SmackException.NotConnectedException, InterruptedException, SmackException.NoResponseException {
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Socks5BytestreamManager s5m = Socks5BytestreamManager.getBytestreamManager(connection());
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List<Jid> proxies = s5m.determineProxies();
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return determineStreamHostInfo(proxies);
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}
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public List<Bytestream.StreamHost> getLocalStreamHosts() {
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return Socks5BytestreamManager.getBytestreamManager(connection())
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.getLocalStreamHost();
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}
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public List<Bytestream.StreamHost> determineStreamHostInfo(List<Jid> proxies) {
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XMPPConnection connection = connection();
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List<Bytestream.StreamHost> streamHosts = new ArrayList<>();
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Iterator<Jid> iterator = proxies.iterator();
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while (iterator.hasNext()) {
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Jid proxy = iterator.next();
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Bytestream request = new Bytestream();
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request.setType(IQ.Type.get);
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request.setTo(proxy);
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try {
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Bytestream response = connection.createStanzaCollectorAndSend(request).nextResultOrThrow();
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streamHosts.addAll(response.getStreamHosts());
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}
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catch (Exception e) {
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iterator.remove();
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}
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}
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return streamHosts;
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}
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public void connectToStreamHost() {
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}
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@Override
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protected JingleContentTransportProvider<JingleS5BTransport> createJingleContentTransportProvider() {
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return new JingleS5BTransportProvider();
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}
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@Override
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public String getNamespace() {
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return JingleS5BTransport.NAMESPACE_V1;
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}
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@Override
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public Jingle createSessionInitiate(FullJid targetJID, JingleContentDescription application, String sessionId) throws XMPPException, IOException, InterruptedException, SmackException {
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return null;
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}
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@Override
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public Jingle createSessionAccept(Jingle request) {
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return null;
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}
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@Override
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public BytestreamSession outgoingInitiatedSession(Jingle jingle) throws Exception {
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return null;
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}
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@Override
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public void setIncomingRespondedSessionListener(Jingle jingle, BytestreamListener listener) {
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}
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public JingleS5BTransport createJingleContentTransport(Jid remote, JingleContentTransport received_) throws XMPPException.XMPPErrorException, SmackException.NotConnectedException, InterruptedException, SmackException.NoResponseException {
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JingleS5BTransport received = (JingleS5BTransport) received_;
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JingleS5BTransport.Builder builder = JingleS5BTransport.getBuilder();
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List<Bytestream.StreamHost> localStreams = getLocalStreamHosts();
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List<Bytestream.StreamHost> availableStreams = getAvailableStreamHosts();
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for (Bytestream.StreamHost host : localStreams) {
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JingleS5BTransportCandidate candidate = new JingleS5BTransportCandidate(host, 100);
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builder.addTransportCandidate(candidate);
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}
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for (Bytestream.StreamHost host : availableStreams) {
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JingleS5BTransportCandidate candidate = new JingleS5BTransportCandidate(host, 0);
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builder.addTransportCandidate(candidate);
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}
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String sid = (received == null ? JingleTransportManager.generateRandomId() : received.getStreamId());
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builder.setStreamId(sid);
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builder.setMode(received == null ? Bytestream.Mode.tcp : received.getMode());
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builder.setDestinationAddress(Socks5Utils.createDigest(sid, connection().getUser(), remote));
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return builder.build();
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}
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public static class Session {
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private ArrayList<Bytestream.StreamHost> ourStreamHosts;
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private ArrayList<Bytestream.StreamHost> theirStreamHosts;
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}
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}
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