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ICE Resolver gets Public IP from Server if STUN Fails 

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@7570 b35dd754-fafc-0310-a699-88a17e54d16e
This commit is contained in:
Thiago Camargo 2007-03-16 02:42:34 +00:00 committed by thiago
parent 84def0e74a
commit c0ce7dd783
1 changed files with 66 additions and 6 deletions
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72
jingle/extension/source/org/jivesoftware/smackx/jingle/nat/ICEResolver.java
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@ -23,19 +23,21 @@ package org.jivesoftware.smackx.jingle.nat;
import de.javawi.jstun.test.demo.ice.Candidate;
import de.javawi.jstun.test.demo.ice.ICENegociator;
import de.javawi.jstun.util.UtilityException;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smackx.jingle.JingleSession;
import java.net.UnknownHostException;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.List;
import java.net.UnknownHostException;
import java.util.Enumeration;
import java.util.Random;
/**
* ICE Resolver for Jingle transport method that results in sending data between two entities using the Interactive Connectivity Establishment (ICE) methodology. (XEP-0176)
* 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.
* To use this resolver you must have a STUN Server and be in a non STUN blocked network.
* To use this resolver you must have a STUN Server and be in a non STUN blocked network. Or use a XMPP server with public IP detection Service.
*
* @author Thiago Camargo
*/
@ -123,6 +125,8 @@ public class ICEResolver extends TransportResolver {
e.printStackTrace();
}
// Get a Relay Candidate from XMPP Server
if (RTPBridge.serviceAvailable(connection)) {
try {
@ -134,8 +138,8 @@ public class ICEResolver extends TransportResolver {
network = iceNegociator.getPublicCandidate().getNetwork();
}
else {
localIp = iceNegociator.getSortedCandidates().get(0).getAddress().getInetAddress().getHostAddress();
network = iceNegociator.getSortedCandidates().get(0).getNetwork();
localIp = InetAddress.getLocalHost().getHostAddress();
network = 0;
}
sid = Math.abs(random.nextLong());
@ -174,6 +178,62 @@ public class ICEResolver extends TransportResolver {
}
// Get Public Candidate From XMPP Server
if (iceNegociator.getPublicCandidate() == null) {
String publicIp = RTPBridge.getPublicIP(connection);
if (publicIp != null && !publicIp.equals("")) {
Enumeration ifaces = null;
try {
ifaces = NetworkInterface.getNetworkInterfaces();
}
catch (SocketException e) {
e.printStackTrace();
}
// If detect this address in local machine, don't use it.
boolean found = false;
while (ifaces.hasMoreElements() && !false) {
NetworkInterface iface = (NetworkInterface) ifaces.nextElement();
Enumeration iaddresses = iface.getInetAddresses();
while (iaddresses.hasMoreElements()) {
InetAddress iaddress = (InetAddress) iaddresses.nextElement();
if (iaddress.getHostAddress().indexOf(publicIp) > -1) {
found = true;
break;
}
}
}
if (!found) {
try {
TransportCandidate publicCandidate = new ICECandidate(
publicIp, 1, 0, String.valueOf(Math.abs(random.nextLong())), getFreePort(), "1", 0, "srflx");
publicCandidate.setLocalIp(InetAddress.getLocalHost().getHostAddress());
try {
publicCandidate.addCandidateEcho(session);
}
catch (SocketException e) {
e.printStackTrace();
}
addCandidate(publicCandidate);
}
catch (UnknownHostException e) {
e.printStackTrace();
}
}
}
}
this.setResolveEnd();
}