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git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@7248 b35dd754-fafc-0310-a699-88a17e54d16e
159 lines
6.2 KiB
Java
159 lines
6.2 KiB
Java
/**
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* $RCSfile$
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* $Revision$
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* $Date$
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*
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* Copyright 2003-2005 Jive Software.
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*
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* All rights reserved. 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.nat;
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import de.javawi.jstun.test.demo.ice.Candidate;
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import de.javawi.jstun.test.demo.ice.ICENegociator;
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import de.javawi.jstun.util.UtilityException;
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import org.jivesoftware.smack.XMPPException;
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import org.jivesoftware.smack.XMPPConnection;
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import java.net.UnknownHostException;
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import java.net.SocketException;
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import java.util.List;
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import java.util.Random;
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/**
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* ICE Resolver for Jingle transport method that results in sending data between two entities using the Interactive Connectivity Establishment (ICE) methodology. (XEP-0176)
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* The goal of this resolver is to make possible to establish and manage out-of-band connections between two XMPP entities, even if they are behind Network Address Translators (NATs) or firewalls.
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* To use this resolver you must have a STUN Server and be in a non STUN blocked network.
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*
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* @author Thiago Camargo
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*/
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public class ICEResolver extends TransportResolver {
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XMPPConnection connection;
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Random random = new Random();
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long sid;
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String server = "stun.xten.net";
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int port = 3478;
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public ICEResolver(XMPPConnection connection, String server, int port) {
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super();
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this.connection = connection;
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this.server = server;
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this.port = port;
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this.setType(Type.ice);
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}
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public void initialize() throws XMPPException {
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if (!isResolving() && !isResolved()) {
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System.out.println("Initialized");
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ICENegociator cc = new ICENegociator((short) 1, server, port);
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// gather candidates
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cc.gatherCandidateAddresses();
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// priorize candidates
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cc.prioritizeCandidates();
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for (Candidate candidate : cc.getSortedCandidates())
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try {
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Candidate.CandidateType type = candidate.getCandidateType();
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String typeString = "local";
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if (type.equals(Candidate.CandidateType.ServerReflexive))
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typeString = "srflx";
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else if (type.equals(Candidate.CandidateType.PeerReflexive))
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typeString = "prflx";
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else if (type.equals(Candidate.CandidateType.Relayed))
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typeString = "relay";
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else
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typeString = "host";
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TransportCandidate transportCandidate = new ICECandidate(candidate.getAddress().getInetAddress().getHostAddress(), 1, candidate.getNetwork(), "1", candidate.getPort(), "1", candidate.getPriority(), typeString);
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transportCandidate.setLocalIp(candidate.getBase().getAddress().getInetAddress().getHostAddress());
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transportCandidate.setPort(getFreePort());
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try {
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transportCandidate.addCandidateEcho();
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}
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catch (SocketException e) {
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e.printStackTrace();
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}
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this.addCandidate(transportCandidate);
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System.out.println("C: " + candidate.getAddress().getInetAddress() + "|" + candidate.getBase().getAddress().getInetAddress() + " p:" + candidate.getPriority());
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}
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catch (UtilityException e) {
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e.printStackTrace();
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}
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catch (UnknownHostException e) {
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e.printStackTrace();
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}
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if (RTPBridge.serviceAvailable(connection)) {
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try {
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String localIp = cc.getPublicCandidate().getBase().getAddress().getInetAddress().getHostAddress();
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sid = Math.abs(random.nextLong());
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RTPBridge rtpBridge = RTPBridge.getRTPBridge(connection, String.valueOf(sid));
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TransportCandidate localCandidate = new ICECandidate(
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rtpBridge.getIp(), 1, cc.getPublicCandidate().getNetwork(), "1", rtpBridge.getPortA(), "1", 0, "relay");
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localCandidate.setLocalIp(localIp);
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TransportCandidate remoteCandidate = new ICECandidate(
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rtpBridge.getIp(), 1, cc.getPublicCandidate().getNetwork(), "1", rtpBridge.getPortB(), "1", 0, "relay");
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remoteCandidate.setLocalIp(localIp);
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localCandidate.setSymmetric(remoteCandidate);
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remoteCandidate.setSymmetric(localCandidate);
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localCandidate.setPassword(rtpBridge.getPass());
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remoteCandidate.setPassword(rtpBridge.getPass());
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localCandidate.setSessionId(rtpBridge.getSid());
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remoteCandidate.setSessionId(rtpBridge.getSid());
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localCandidate.setConnection(this.connection);
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remoteCandidate.setConnection(this.connection);
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addCandidate(localCandidate);
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}
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catch (UtilityException e) {
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e.printStackTrace();
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}
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catch (UnknownHostException e) {
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e.printStackTrace();
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}
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}
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}
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this.setInitialized();
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}
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public void cancel() throws XMPPException {
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}
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/**
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* Resolve the IP and obtain a valid transport method.
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*/
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public synchronized void resolve() throws XMPPException {
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this.setResolveInit();
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System.out.println("Resolve");
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this.setResolveEnd();
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}
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}
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