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Remove ConnectionListener from Socks5BytestreamManager
and use weak references. Disabling the Socks5Manager every time the connection is terminated, and re-enabling it when it got connected again causes unwanted side effects. Like adding a new feature to the ServiceDiscoveryManager causes an update of the entity's capabilities, which then triggers a new outgoing presence (announcing the new caps version). SMACK-671
This commit is contained in:
Florian Schmaus
parent
385798f9ba
commit
35317a19bd
2 changed files with 26 additions and 42 deletions
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@ -28,7 +28,7 @@ import java.util.Random;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.TimeoutException;
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import org.jivesoftware.smack.AbstractConnectionClosedListener;
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import org.jivesoftware.smack.Manager;
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import org.jivesoftware.smack.SmackException;
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import org.jivesoftware.smack.SmackException.NoResponseException;
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import org.jivesoftware.smack.SmackException.FeatureNotSupportedException;
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@ -86,7 +86,7 @@ import org.jivesoftware.smackx.filetransfer.FileTransferManager;
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*
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* @author Henning Staib
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*/
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public final class Socks5BytestreamManager implements BytestreamManager {
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public final class Socks5BytestreamManager extends Manager implements BytestreamManager {
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/*
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* create a new Socks5BytestreamManager and register a shutdown listener on every established
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@ -98,22 +98,6 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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public void connectionCreated(final XMPPConnection connection) {
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// create the manager for this connection
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Socks5BytestreamManager.getBytestreamManager(connection);
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// register shutdown listener
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connection.addConnectionListener(new AbstractConnectionClosedListener() {
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@Override
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public void connectionTerminated() {
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Socks5BytestreamManager.getBytestreamManager(connection).disableService();
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}
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@Override
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public void reconnectionSuccessful() {
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// re-create the manager for this connection
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Socks5BytestreamManager.getBytestreamManager(connection);
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}
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});
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}
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});
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@ -128,9 +112,6 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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/* stores one Socks5BytestreamManager for each XMPP connection */
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private final static Map<XMPPConnection, Socks5BytestreamManager> managers = new HashMap<XMPPConnection, Socks5BytestreamManager>();
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/* XMPP connection */
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private final XMPPConnection connection;
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/*
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* assigns a user to a listener that is informed if a bytestream request for this user is
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* received
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@ -185,7 +166,6 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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if (manager == null) {
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manager = new Socks5BytestreamManager(connection);
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managers.put(connection, manager);
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manager.activate();
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}
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return manager;
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}
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@ -196,8 +176,9 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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* @param connection the XMPP connection
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*/
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private Socks5BytestreamManager(XMPPConnection connection) {
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this.connection = connection;
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super(connection);
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this.initiationListener = new InitiationListener(this);
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activate();
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}
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/**
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@ -282,7 +263,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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* Using the file transfer API will automatically re-enable the SOCKS5 Bytestream feature.
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*/
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public synchronized void disableService() {
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XMPPConnection connection = connection();
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// remove initiation packet listener
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connection.unregisterIQRequestHandler(initiationListener);
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@ -299,7 +280,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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this.ignoredBytestreamRequests.clear();
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// remove manager from static managers map
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managers.remove(this.connection);
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managers.remove(connection);
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// shutdown local SOCKS5 proxy if there are no more managers for other connections
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if (managers.size() == 0) {
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@ -307,7 +288,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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}
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// remove feature from service discovery
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ServiceDiscoveryManager serviceDiscoveryManager = ServiceDiscoveryManager.getInstanceFor(this.connection);
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ServiceDiscoveryManager serviceDiscoveryManager = ServiceDiscoveryManager.getInstanceFor(connection);
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// check if service discovery is not already disposed by connection shutdown
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if (serviceDiscoveryManager != null) {
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@ -423,7 +404,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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*/
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public Socks5BytestreamSession establishSession(String targetJID, String sessionID)
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throws IOException, InterruptedException, NoResponseException, SmackException, XMPPException{
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XMPPConnection connection = connection();
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XMPPErrorException discoveryException = null;
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// check if target supports SOCKS5 Bytestream
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if (!supportsSocks5(targetJID)) {
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@ -452,7 +433,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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}
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// compute digest
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String digest = Socks5Utils.createDigest(sessionID, this.connection.getUser(), targetJID);
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String digest = Socks5Utils.createDigest(sessionID, connection.getUser(), targetJID);
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// prioritize last working SOCKS5 proxy if exists
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if (this.proxyPrioritizationEnabled && this.lastWorkingProxy != null) {
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@ -493,7 +474,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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// build SOCKS5 client
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Socks5Client socks5Client = new Socks5ClientForInitiator(usedStreamHost, digest,
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this.connection, sessionID, targetJID);
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connection, sessionID, targetJID);
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// establish connection to proxy
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Socket socket = socks5Client.getSocket(getProxyConnectionTimeout());
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@ -503,7 +484,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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// negotiation successful, return the output stream
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return new Socks5BytestreamSession(socket, usedStreamHost.getJID().equals(
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this.connection.getUser()));
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connection.getUser()));
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}
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catch (TimeoutException e) {
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@ -529,7 +510,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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* @throws NotConnectedException
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*/
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private boolean supportsSocks5(String targetJID) throws NoResponseException, XMPPErrorException, NotConnectedException {
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return ServiceDiscoveryManager.getInstanceFor(connection).supportsFeature(targetJID, Bytestream.NAMESPACE);
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return ServiceDiscoveryManager.getInstanceFor(connection()).supportsFeature(targetJID, Bytestream.NAMESPACE);
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}
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/**
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@ -542,12 +523,13 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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* @throws NotConnectedException
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*/
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private List<String> determineProxies() throws NoResponseException, XMPPErrorException, NotConnectedException {
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ServiceDiscoveryManager serviceDiscoveryManager = ServiceDiscoveryManager.getInstanceFor(this.connection);
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XMPPConnection connection = connection();
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ServiceDiscoveryManager serviceDiscoveryManager = ServiceDiscoveryManager.getInstanceFor(connection);
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List<String> proxies = new ArrayList<String>();
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// get all items from XMPP server
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DiscoverItems discoverItems = serviceDiscoveryManager.discoverItems(this.connection.getServiceName());
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DiscoverItems discoverItems = serviceDiscoveryManager.discoverItems(connection.getServiceName());
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// query all items if they are SOCKS5 proxies
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for (Item item : discoverItems.getItems()) {
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@ -590,6 +572,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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* @return a list of stream hosts containing the IP address an the port
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*/
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private List<StreamHost> determineStreamHostInfos(List<String> proxies) {
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XMPPConnection connection = connection();
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List<StreamHost> streamHosts = new ArrayList<StreamHost>();
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// add local proxy on first position if exists
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@ -636,7 +619,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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* is not running
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*/
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private List<StreamHost> getLocalStreamHost() {
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XMPPConnection connection = connection();
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// get local proxy singleton
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Socks5Proxy socks5Server = Socks5Proxy.getSocks5Proxy();
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@ -704,7 +687,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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protected void replyRejectPacket(IQ packet) throws NotConnectedException {
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XMPPError xmppError = new XMPPError(XMPPError.Condition.not_acceptable);
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IQ errorIQ = IQ.createErrorResponse(packet, xmppError);
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this.connection.sendStanza(errorIQ);
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connection().sendStanza(errorIQ);
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}
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/**
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@ -713,7 +696,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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*/
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private void activate() {
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// register bytestream initiation packet listener
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connection.registerIQRequestHandler(initiationListener);
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connection().registerIQRequestHandler(initiationListener);
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// enable SOCKS5 feature
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enableService();
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@ -723,7 +706,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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* Adds the SOCKS5 Bytestream feature to the service discovery.
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*/
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private void enableService() {
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ServiceDiscoveryManager manager = ServiceDiscoveryManager.getInstanceFor(this.connection);
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ServiceDiscoveryManager manager = ServiceDiscoveryManager.getInstanceFor(connection());
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manager.addFeature(Bytestream.NAMESPACE);
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}
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@ -745,7 +728,7 @@ public final class Socks5BytestreamManager implements BytestreamManager {
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* @return the XMPP connection
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*/
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protected XMPPConnection getConnection() {
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return this.connection;
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return connection();
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}
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/**
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@ -17,6 +17,7 @@
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package org.jivesoftware.smackx.bytestreams.socks5;
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import java.io.IOException;
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import java.lang.ref.WeakReference;
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import java.net.Socket;
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import java.util.concurrent.TimeoutException;
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@ -41,7 +42,7 @@ import org.jivesoftware.smackx.bytestreams.socks5.packet.Bytestream.StreamHost;
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class Socks5ClientForInitiator extends Socks5Client {
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/* the XMPP connection used to communicate with the SOCKS5 proxy */
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private XMPPConnection connection;
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private WeakReference<XMPPConnection> connection;
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/* the session ID used to activate SOCKS5 stream */
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private String sessionID;
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@ -61,7 +62,7 @@ class Socks5ClientForInitiator extends Socks5Client {
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public Socks5ClientForInitiator(StreamHost streamHost, String digest, XMPPConnection connection,
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String sessionID, String target) {
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super(streamHost, digest);
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this.connection = connection;
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this.connection = new WeakReference<>(connection);
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this.sessionID = sessionID;
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this.target = target;
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}
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@ -71,7 +72,7 @@ class Socks5ClientForInitiator extends Socks5Client {
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Socket socket = null;
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// check if stream host is the local SOCKS5 proxy
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if (this.streamHost.getJID().equals(this.connection.getUser())) {
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if (this.streamHost.getJID().equals(this.connection.get().getUser())) {
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Socks5Proxy socks5Server = Socks5Proxy.getSocks5Proxy();
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socket = socks5Server.getSocket(this.digest);
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if (socket == null) {
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@ -109,7 +110,7 @@ class Socks5ClientForInitiator extends Socks5Client {
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private void activate() throws NoResponseException, XMPPErrorException, NotConnectedException {
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Bytestream activate = createStreamHostActivation();
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// if activation fails #nextResultOrThrow() throws an exception
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connection.createPacketCollectorAndSend(activate).nextResultOrThrow();
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connection.get().createPacketCollectorAndSend(activate).nextResultOrThrow();
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}
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/**
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