Mercury-IM/Smack
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Code Issues Releases Wiki Activity

Try all Inet Addresses of the host when connecting

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instead of the first resolved one.

Also some small refactorizations (e.g. getSocketFactory())
This commit is contained in:
Florian Schmaus 2015-01-04 16:38:45 +01:00
parent 717090d272
commit f6144c553c
1 changed files with 38 additions and 26 deletions
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64
smack-tcp/src/main/java/org/jivesoftware/smack/tcp/XMPPTCPConnection.java
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@ -77,6 +77,7 @@ import org.jivesoftware.smack.util.dns.HostAddress;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import javax.net.SocketFactory;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.KeyManager;
import javax.net.ssl.KeyManagerFactory;
@ -95,6 +96,7 @@ import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.lang.reflect.Constructor;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.security.KeyManagementException;
@ -107,6 +109,7 @@ import java.security.Security;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.LinkedHashSet;
@ -508,37 +511,46 @@ public class XMPPTCPConnection extends AbstractXMPPConnection {
}
Iterator<HostAddress> it = hostAddresses.iterator();
List<HostAddress> failedAddresses = new LinkedList<HostAddress>();
while (it.hasNext()) {
Exception exception = null;
SocketFactory socketFactory = config.getSocketFactory();
if (socketFactory == null) {
socketFactory = SocketFactory.getDefault();
}
outerloop: while (it.hasNext()) {
HostAddress hostAddress = it.next();
String host = hostAddress.getFQDN();
int port = hostAddress.getPort();
if (config.getSocketFactory() == null) {
socket = new Socket();
}
else {
socket = config.getSocketFactory().createSocket();
}
LOGGER.finer("Trying to establish TCP connection to " + host + " at port " + port);
socket = socketFactory.createSocket();
try {
socket.connect(new InetSocketAddress(host, port), config.getConnectTimeout());
} catch (Exception e) {
exception = e;
Iterator<InetAddress> inetAddresses = Arrays.asList(InetAddress.getAllByName(host)).iterator();
innerloop: while (inetAddresses.hasNext()) {
final InetAddress inetAddress = inetAddresses.next();
final String inetAddressAndPort = inetAddress + "at port " + port;
LOGGER.finer("Trying to establish TCP connection to " + inetAddressAndPort);
try {
socket.connect(new InetSocketAddress(inetAddress, port), config.getConnectTimeout());
} catch (Exception e) {
if (inetAddresses.hasNext()) {
continue innerloop;
} else {
throw e;
}
}
LOGGER.finer("Established TCP connection to " + inetAddressAndPort);
// We found a host to connect to, break here
this.host = host;
this.port = port;
break outerloop;
}
}
if (exception == null) {
LOGGER.finer("Established TCP connection to " + host + " at port " + port);
// We found a host to connect to, break here
this.host = host;
this.port = port;
break;
}
hostAddress.setException(exception);
failedAddresses.add(hostAddress);
if (!it.hasNext()) {
// There are no more host addresses to try
// throw an exception and report all tried
// HostAddresses in the exception
throw ConnectionException.from(failedAddresses);
catch (Exception e) {
hostAddress.setException(e);
failedAddresses.add(hostAddress);
if (!it.hasNext()) {
// There are no more host addresses to try
// throw an exception and report all tried
// HostAddresses in the exception
throw ConnectionException.from(failedAddresses);
}
}
}
socketClosed = false;