conversations-classic/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java

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package eu.siacs.conversations.xmpp;
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import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
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import android.os.Bundle;
import android.os.Parcelable;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.os.SystemClock;
import android.security.KeyChain;
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import android.util.Base64;
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import android.util.Log;
import android.util.Pair;
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import android.util.SparseArray;
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import org.json.JSONException;
import org.json.JSONObject;
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import org.xmlpull.v1.XmlPullParserException;
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import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.math.BigInteger;
import java.net.ConnectException;
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import java.net.IDN;
import java.net.InetAddress;
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import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.UnknownHostException;
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import java.net.URL;
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import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.Principal;
import java.security.PrivateKey;
import java.security.cert.X509Certificate;
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import java.util.ArrayList;
import java.util.HashMap;
import java.util.Hashtable;
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import java.util.Iterator;
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import java.util.List;
import java.util.Map.Entry;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
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import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.KeyManager;
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import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.X509KeyManager;
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import javax.net.ssl.X509TrustManager;
import de.duenndns.ssl.MemorizingTrustManager;
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import eu.siacs.conversations.Config;
import eu.siacs.conversations.crypto.XmppDomainVerifier;
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import eu.siacs.conversations.crypto.sasl.DigestMd5;
import eu.siacs.conversations.crypto.sasl.External;
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import eu.siacs.conversations.crypto.sasl.Plain;
import eu.siacs.conversations.crypto.sasl.SaslMechanism;
import eu.siacs.conversations.crypto.sasl.ScramSha1;
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import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.entities.Message;
import eu.siacs.conversations.entities.ServiceDiscoveryResult;
import eu.siacs.conversations.generator.IqGenerator;
import eu.siacs.conversations.services.XmppConnectionService;
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import eu.siacs.conversations.utils.DNSHelper;
import eu.siacs.conversations.utils.SSLSocketHelper;
import eu.siacs.conversations.utils.SocksSocketFactory;
import eu.siacs.conversations.utils.Xmlns;
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import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xml.Tag;
import eu.siacs.conversations.xml.TagWriter;
import eu.siacs.conversations.xml.XmlReader;
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import eu.siacs.conversations.xmpp.forms.Data;
import eu.siacs.conversations.xmpp.forms.Field;
import eu.siacs.conversations.xmpp.jid.InvalidJidException;
import eu.siacs.conversations.xmpp.jid.Jid;
import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
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import eu.siacs.conversations.xmpp.stanzas.AbstractAcknowledgeableStanza;
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import eu.siacs.conversations.xmpp.stanzas.AbstractStanza;
import eu.siacs.conversations.xmpp.stanzas.IqPacket;
import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
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import eu.siacs.conversations.xmpp.stanzas.csi.ActivePacket;
import eu.siacs.conversations.xmpp.stanzas.csi.InactivePacket;
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import eu.siacs.conversations.xmpp.stanzas.streammgmt.AckPacket;
import eu.siacs.conversations.xmpp.stanzas.streammgmt.EnablePacket;
import eu.siacs.conversations.xmpp.stanzas.streammgmt.RequestPacket;
import eu.siacs.conversations.xmpp.stanzas.streammgmt.ResumePacket;
public class XmppConnection implements Runnable {
private static final int PACKET_IQ = 0;
private static final int PACKET_MESSAGE = 1;
private static final int PACKET_PRESENCE = 2;
protected Account account;
private final WakeLock wakeLock;
private Socket socket;
private XmlReader tagReader;
private TagWriter tagWriter;
private final Features features = new Features(this);
private boolean needsBinding = true;
private boolean shouldAuthenticate = true;
private Element streamFeatures;
private final HashMap<Jid, ServiceDiscoveryResult> disco = new HashMap<>();
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private String streamId = null;
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private int smVersion = 3;
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private final SparseArray<AbstractAcknowledgeableStanza> mStanzaQueue = new SparseArray<>();
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private int stanzasReceived = 0;
private int stanzasSent = 0;
private long lastPacketReceived = 0;
private long lastPingSent = 0;
private long lastConnect = 0;
private long lastSessionStarted = 0;
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private long lastDiscoStarted = 0;
private AtomicInteger mPendingServiceDiscoveries = new AtomicInteger(0);
private AtomicBoolean mIsServiceItemsDiscoveryPending = new AtomicBoolean(true);
private boolean mWaitForDisco = true;
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private final ArrayList<String> mPendingServiceDiscoveriesIds = new ArrayList<>();
private boolean mInteractive = false;
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private int attempt = 0;
private final Hashtable<String, Pair<IqPacket, OnIqPacketReceived>> packetCallbacks = new Hashtable<>();
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private OnPresencePacketReceived presenceListener = null;
private OnJinglePacketReceived jingleListener = null;
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private OnIqPacketReceived unregisteredIqListener = null;
private OnMessagePacketReceived messageListener = null;
private OnStatusChanged statusListener = null;
private OnBindListener bindListener = null;
private final ArrayList<OnAdvancedStreamFeaturesLoaded> advancedStreamFeaturesLoadedListeners = new ArrayList<>();
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private OnMessageAcknowledged acknowledgedListener = null;
private XmppConnectionService mXmppConnectionService = null;
private SaslMechanism saslMechanism;
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private X509KeyManager mKeyManager = new X509KeyManager() {
@Override
public String chooseClientAlias(String[] strings, Principal[] principals, Socket socket) {
return account.getPrivateKeyAlias();
}
@Override
public String chooseServerAlias(String s, Principal[] principals, Socket socket) {
return null;
}
@Override
public X509Certificate[] getCertificateChain(String alias) {
try {
return KeyChain.getCertificateChain(mXmppConnectionService, alias);
} catch (Exception e) {
return new X509Certificate[0];
}
}
@Override
public String[] getClientAliases(String s, Principal[] principals) {
return new String[0];
}
@Override
public String[] getServerAliases(String s, Principal[] principals) {
return new String[0];
}
@Override
public PrivateKey getPrivateKey(String alias) {
try {
return KeyChain.getPrivateKey(mXmppConnectionService, alias);
} catch (Exception e) {
return null;
}
}
};
private Identity mServerIdentity = Identity.UNKNOWN;
public final OnIqPacketReceived registrationResponseListener = new OnIqPacketReceived() {
@Override
public void onIqPacketReceived(Account account, IqPacket packet) {
if (packet.getType() == IqPacket.TYPE.RESULT) {
account.setOption(Account.OPTION_REGISTER, false);
forceCloseSocket();
changeStatus(Account.State.REGISTRATION_SUCCESSFUL);
} else {
Element error = packet.findChild("error");
if (error != null && error.hasChild("conflict")) {
forceCloseSocket();
changeStatus(Account.State.REGISTRATION_CONFLICT);
} else if (error != null
&& "wait".equals(error.getAttribute("type"))
&& error.hasChild("resource-constraint")) {
forceCloseSocket();
changeStatus(Account.State.REGISTRATION_PLEASE_WAIT);
} else {
forceCloseSocket();
changeStatus(Account.State.REGISTRATION_FAILED);
Log.d(Config.LOGTAG, packet.toString());
}
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}
}
};
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public XmppConnection(final Account account, final XmppConnectionService service) {
this.account = account;
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this.wakeLock = service.getPowerManager().newWakeLock(
PowerManager.PARTIAL_WAKE_LOCK, account.getJid().toBareJid().toString());
tagWriter = new TagWriter();
mXmppConnectionService = service;
}
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protected void changeStatus(final Account.State nextStatus) {
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if (account.getStatus() != nextStatus) {
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if ((nextStatus == Account.State.OFFLINE)
&& (account.getStatus() != Account.State.CONNECTING)
&& (account.getStatus() != Account.State.ONLINE)
&& (account.getStatus() != Account.State.DISABLED)) {
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return;
}
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if (nextStatus == Account.State.ONLINE) {
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this.attempt = 0;
}
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account.setStatus(nextStatus);
if (statusListener != null) {
statusListener.onStatusChanged(account);
}
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}
}
public void prepareNewConnection() {
this.lastConnect = SystemClock.elapsedRealtime();
this.lastPingSent = SystemClock.elapsedRealtime();
this.lastDiscoStarted = Long.MAX_VALUE;
this.changeStatus(Account.State.CONNECTING);
}
protected void connect() {
Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": connecting");
features.encryptionEnabled = false;
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this.attempt++;
switch (account.getJid().getDomainpart()) {
case "chat.facebook.com":
mServerIdentity = Identity.FACEBOOK;
break;
case "nimbuzz.com":
mServerIdentity = Identity.NIMBUZZ;
break;
default:
mServerIdentity = Identity.UNKNOWN;
break;
}
try {
shouldAuthenticate = needsBinding = !account.isOptionSet(Account.OPTION_REGISTER);
tagReader = new XmlReader(wakeLock);
tagWriter = new TagWriter();
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this.changeStatus(Account.State.CONNECTING);
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final boolean useTor = mXmppConnectionService.useTorToConnect() || account.isOnion();
final boolean extended = mXmppConnectionService.showExtendedConnectionOptions();
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if (useTor) {
String destination;
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if (account.getHostname() == null || account.getHostname().isEmpty()) {
destination = account.getServer().toString();
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} else {
destination = account.getHostname();
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}
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": connect to " + destination + " via TOR");
socket = SocksSocketFactory.createSocketOverTor(destination, account.getPort());
startXmpp();
} else if (extended && account.getHostname() != null && !account.getHostname().isEmpty()) {
socket = new Socket();
try {
socket.connect(new InetSocketAddress(account.getHostname(), account.getPort()), Config.SOCKET_TIMEOUT * 1000);
} catch (IOException e) {
throw new UnknownHostException();
}
startXmpp();
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} else if (DNSHelper.isIp(account.getServer().toString())) {
socket = new Socket();
try {
socket.connect(new InetSocketAddress(account.getServer().toString(), 5222), Config.SOCKET_TIMEOUT * 1000);
} catch (IOException e) {
throw new UnknownHostException();
}
startXmpp();
} else {
final Bundle result = DNSHelper.getSRVRecord(account.getServer(), mXmppConnectionService);
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final ArrayList<Parcelable>values = result.getParcelableArrayList("values");
for(Iterator<Parcelable> iterator = values.iterator(); iterator.hasNext();) {
if (Thread.currentThread().isInterrupted()) {
Log.d(Config.LOGTAG,account.getJid().toBareJid()+": Thread was interrupted");
return;
}
final Bundle namePort = (Bundle) iterator.next();
try {
String srvRecordServer;
try {
srvRecordServer = IDN.toASCII(namePort.getString("name"));
} catch (final IllegalArgumentException e) {
// TODO: Handle me?`
srvRecordServer = "";
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}
final int srvRecordPort = namePort.getInt("port");
final String srvIpServer = namePort.getString("ip");
// if tls is true, encryption is implied and must not be started
features.encryptionEnabled = namePort.getBoolean("tls");
final InetSocketAddress addr;
if (srvIpServer != null) {
addr = new InetSocketAddress(srvIpServer, srvRecordPort);
Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
+ ": using values from dns " + srvRecordServer
+ "[" + srvIpServer + "]:" + srvRecordPort + " tls: " + features.encryptionEnabled);
} else {
addr = new InetSocketAddress(srvRecordServer, srvRecordPort);
Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
+ ": using values from dns "
+ srvRecordServer + ":" + srvRecordPort + " tls: " + features.encryptionEnabled);
}
if (!features.encryptionEnabled) {
socket = new Socket();
socket.connect(addr, Config.SOCKET_TIMEOUT * 1000);
} else {
final TlsFactoryVerifier tlsFactoryVerifier = getTlsFactoryVerifier();
socket = tlsFactoryVerifier.factory.createSocket();
if (socket == null) {
throw new IOException("could not initialize ssl socket");
}
SSLSocketHelper.setSecurity((SSLSocket) socket);
SSLSocketHelper.setSNIHost(tlsFactoryVerifier.factory, (SSLSocket) socket, account.getServer().getDomainpart());
SSLSocketHelper.setAlpnProtocol(tlsFactoryVerifier.factory, (SSLSocket) socket, "xmpp-client");
socket.connect(addr, Config.SOCKET_TIMEOUT * 1000);
if (!tlsFactoryVerifier.verifier.verify(account.getServer().getDomainpart(), ((SSLSocket) socket).getSession())) {
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": TLS certificate verification failed");
throw new SecurityException();
}
}
if (startXmpp())
break; // successfully connected to server that speaks xmpp
} catch(final SecurityException e) {
throw e;
} catch (final Throwable e) {
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Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": " + e.getMessage() +"("+e.getClass().getName()+")");
if (!iterator.hasNext()) {
throw new UnknownHostException();
}
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}
}
}
processStream();
} catch (final IncompatibleServerException e) {
this.changeStatus(Account.State.INCOMPATIBLE_SERVER);
} catch (final SecurityException e) {
this.changeStatus(Account.State.SECURITY_ERROR);
} catch (final UnauthorizedException e) {
this.changeStatus(Account.State.UNAUTHORIZED);
} catch (final UnknownHostException | ConnectException e) {
this.changeStatus(Account.State.SERVER_NOT_FOUND);
} catch (final SocksSocketFactory.SocksProxyNotFoundException e) {
this.changeStatus(Account.State.TOR_NOT_AVAILABLE);
} catch (final IOException | XmlPullParserException | NoSuchAlgorithmException e) {
Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": " + e.getMessage());
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this.changeStatus(Account.State.OFFLINE);
this.attempt = Math.max(0, this.attempt - 1);
} finally {
forceCloseSocket();
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if (wakeLock.isHeld()) {
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try {
wakeLock.release();
} catch (final RuntimeException ignored) {
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}
}
}
}
/**
* Starts xmpp protocol, call after connecting to socket
* @return true if server returns with valid xmpp, false otherwise
* @throws IOException Unknown tag on connect
* @throws XmlPullParserException Bad Xml
* @throws NoSuchAlgorithmException Other error
*/
private boolean startXmpp() throws IOException, XmlPullParserException, NoSuchAlgorithmException {
tagWriter.setOutputStream(socket.getOutputStream());
tagReader.setInputStream(socket.getInputStream());
tagWriter.beginDocument();
sendStartStream();
Tag nextTag;
while ((nextTag = tagReader.readTag()) != null) {
if (nextTag.isStart("stream")) {
return true;
} else {
throw new IOException("unknown tag on connect");
}
}
if (socket.isConnected()) {
socket.close();
}
return false;
}
private static class TlsFactoryVerifier {
private final SSLSocketFactory factory;
private final HostnameVerifier verifier;
public TlsFactoryVerifier(final SSLSocketFactory factory, final HostnameVerifier verifier) throws IOException {
this.factory = factory;
this.verifier = verifier;
if (factory == null || verifier == null) {
throw new IOException("could not setup ssl");
}
}
}
private TlsFactoryVerifier getTlsFactoryVerifier() throws NoSuchAlgorithmException, KeyManagementException, IOException {
final SSLContext sc = SSLSocketHelper.getSSLContext();
MemorizingTrustManager trustManager = this.mXmppConnectionService.getMemorizingTrustManager();
KeyManager[] keyManager;
if (account.getPrivateKeyAlias() != null && account.getPassword().isEmpty()) {
keyManager = new KeyManager[]{mKeyManager};
} else {
keyManager = null;
}
sc.init(keyManager, new X509TrustManager[]{mInteractive ? trustManager : trustManager.getNonInteractive()}, mXmppConnectionService.getRNG());
final SSLSocketFactory factory = sc.getSocketFactory();
final HostnameVerifier verifier;
if (mInteractive) {
verifier = trustManager.wrapHostnameVerifier(new XmppDomainVerifier());
} else {
verifier = trustManager.wrapHostnameVerifierNonInteractive(new XmppDomainVerifier());
}
return new TlsFactoryVerifier(factory, verifier);
}
@Override
public void run() {
forceCloseSocket();
connect();
}
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private void processStream() throws XmlPullParserException, IOException, NoSuchAlgorithmException {
Tag nextTag = tagReader.readTag();
while (nextTag != null && !nextTag.isEnd("stream")) {
if (nextTag.isStart("error")) {
processStreamError(nextTag);
} else if (nextTag.isStart("features")) {
processStreamFeatures(nextTag);
} else if (nextTag.isStart("proceed")) {
switchOverToTls(nextTag);
} else if (nextTag.isStart("success")) {
final String challenge = tagReader.readElement(nextTag).getContent();
try {
saslMechanism.getResponse(challenge);
} catch (final SaslMechanism.AuthenticationException e) {
disconnect(true);
Log.e(Config.LOGTAG, String.valueOf(e));
}
Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": logged in");
account.setKey(Account.PINNED_MECHANISM_KEY,
String.valueOf(saslMechanism.getPriority()));
tagReader.reset();
sendStartStream();
final Tag tag = tagReader.readTag();
if (tag != null && tag.isStart("stream")) {
processStream();
} else {
throw new IOException("server didn't restart stream after successful auth");
}
break;
} else if (nextTag.isStart("failure")) {
throw new UnauthorizedException();
} else if (nextTag.isStart("challenge")) {
final String challenge = tagReader.readElement(nextTag).getContent();
final Element response = new Element("response");
response.setAttribute("xmlns",
"urn:ietf:params:xml:ns:xmpp-sasl");
try {
response.setContent(saslMechanism.getResponse(challenge));
} catch (final SaslMechanism.AuthenticationException e) {
// TODO: Send auth abort tag.
Log.e(Config.LOGTAG, e.toString());
}
tagWriter.writeElement(response);
} else if (nextTag.isStart("enabled")) {
final Element enabled = tagReader.readElement(nextTag);
if ("true".equals(enabled.getAttribute("resume"))) {
this.streamId = enabled.getAttribute("id");
Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
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+ ": stream management(" + smVersion
+ ") enabled (resumable)");
} else {
Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
+ ": stream management(" + smVersion + ") enabled");
}
this.stanzasReceived = 0;
final RequestPacket r = new RequestPacket(smVersion);
tagWriter.writeStanzaAsync(r);
} else if (nextTag.isStart("resumed")) {
lastPacketReceived = SystemClock.elapsedRealtime();
final Element resumed = tagReader.readElement(nextTag);
final String h = resumed.getAttribute("h");
try {
ArrayList<AbstractAcknowledgeableStanza> failedStanzas = new ArrayList<>();
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synchronized (this.mStanzaQueue) {
final int serverCount = Integer.parseInt(h);
if (serverCount != stanzasSent) {
Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
+ ": session resumed with lost packages");
stanzasSent = serverCount;
} else {
Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": session resumed");
}
acknowledgeStanzaUpTo(serverCount);
for (int i = 0; i < this.mStanzaQueue.size(); ++i) {
failedStanzas.add(mStanzaQueue.valueAt(i));
}
mStanzaQueue.clear();
}
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Log.d(Config.LOGTAG, "resending " + failedStanzas.size() + " stanzas");
for (AbstractAcknowledgeableStanza packet : failedStanzas) {
if (packet instanceof MessagePacket) {
MessagePacket message = (MessagePacket) packet;
mXmppConnectionService.markMessage(account,
message.getTo().toBareJid(),
message.getId(),
Message.STATUS_UNSEND);
}
sendPacket(packet);
}
} catch (final NumberFormatException ignored) {
}
Log.d(Config.LOGTAG, account.getJid().toBareJid()+ ": online with resource " + account.getResource());
changeStatus(Account.State.ONLINE);
} else if (nextTag.isStart("r")) {
tagReader.readElement(nextTag);
if (Config.EXTENDED_SM_LOGGING) {
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": acknowledging stanza #" + this.stanzasReceived);
}
final AckPacket ack = new AckPacket(this.stanzasReceived, smVersion);
tagWriter.writeStanzaAsync(ack);
} else if (nextTag.isStart("a")) {
final Element ack = tagReader.readElement(nextTag);
lastPacketReceived = SystemClock.elapsedRealtime();
try {
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synchronized (this.mStanzaQueue) {
final int serverSequence = Integer.parseInt(ack.getAttribute("h"));
acknowledgeStanzaUpTo(serverSequence);
}
} catch (NumberFormatException | NullPointerException e) {
Log.d(Config.LOGTAG,account.getJid().toBareJid()+": server send ack without sequence number");
}
} else if (nextTag.isStart("failed")) {
Element failed = tagReader.readElement(nextTag);
try {
final int serverCount = Integer.parseInt(failed.getAttribute("h"));
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": resumption failed but server acknowledged stanza #"+serverCount);
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synchronized (this.mStanzaQueue) {
acknowledgeStanzaUpTo(serverCount);
}
} catch (NumberFormatException | NullPointerException e) {
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": resumption failed");
}
resetStreamId();
if (account.getStatus() != Account.State.ONLINE) {
sendBindRequest();
}
} else if (nextTag.isStart("iq")) {
processIq(nextTag);
} else if (nextTag.isStart("message")) {
processMessage(nextTag);
} else if (nextTag.isStart("presence")) {
processPresence(nextTag);
}
nextTag = tagReader.readTag();
}
}
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private void acknowledgeStanzaUpTo(int serverCount) {
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for (int i = 0; i < mStanzaQueue.size(); ++i) {
if (serverCount >= mStanzaQueue.keyAt(i)) {
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if (Config.EXTENDED_SM_LOGGING) {
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Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": server acknowledged stanza #" + mStanzaQueue.keyAt(i));
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}
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AbstractAcknowledgeableStanza stanza = mStanzaQueue.valueAt(i);
if (stanza instanceof MessagePacket && acknowledgedListener != null) {
MessagePacket packet = (MessagePacket) stanza;
acknowledgedListener.onMessageAcknowledged(account, packet.getId());
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}
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mStanzaQueue.removeAt(i);
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i--;
}
}
}
private Element processPacket(final Tag currentTag, final int packetType)
throws XmlPullParserException, IOException {
Element element;
switch (packetType) {
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case PACKET_IQ:
element = new IqPacket();
break;
case PACKET_MESSAGE:
element = new MessagePacket();
break;
case PACKET_PRESENCE:
element = new PresencePacket();
break;
default:
return null;
}
element.setAttributes(currentTag.getAttributes());
Tag nextTag = tagReader.readTag();
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if (nextTag == null) {
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throw new IOException("interrupted mid tag");
}
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while (!nextTag.isEnd(element.getName())) {
if (!nextTag.isNo()) {
final Element child = tagReader.readElement(nextTag);
final String type = currentTag.getAttribute("type");
if (packetType == PACKET_IQ
&& "jingle".equals(child.getName())
&& ("set".equalsIgnoreCase(type) || "get"
.equalsIgnoreCase(type))) {
element = new JinglePacket();
element.setAttributes(currentTag.getAttributes());
}
element.addChild(child);
}
nextTag = tagReader.readTag();
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if (nextTag == null) {
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throw new IOException("interrupted mid tag");
}
}
if (stanzasReceived == Integer.MAX_VALUE) {
resetStreamId();
throw new IOException("time to restart the session. cant handle >2 billion pcks");
}
2014-03-10 18:22:13 +00:00
++stanzasReceived;
lastPacketReceived = SystemClock.elapsedRealtime();
if (Config.BACKGROUND_STANZA_LOGGING && mXmppConnectionService.checkListeners()) {
Log.d(Config.LOGTAG,"[background stanza] "+element);
}
return element;
}
private void processIq(final Tag currentTag) throws XmlPullParserException, IOException {
final IqPacket packet = (IqPacket) processPacket(currentTag, PACKET_IQ);
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if (packet.getId() == null) {
return; // an iq packet without id is definitely invalid
}
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if (packet instanceof JinglePacket) {
if (this.jingleListener != null) {
this.jingleListener.onJinglePacketReceived(account,(JinglePacket) packet);
}
} else {
OnIqPacketReceived callback = null;
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synchronized (this.packetCallbacks) {
if (packetCallbacks.containsKey(packet.getId())) {
final Pair<IqPacket, OnIqPacketReceived> packetCallbackDuple = packetCallbacks.get(packet.getId());
// Packets to the server should have responses from the server
if (packetCallbackDuple.first.toServer(account)) {
if (packet.fromServer(account) || mServerIdentity == Identity.FACEBOOK) {
callback = packetCallbackDuple.second;
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packetCallbacks.remove(packet.getId());
} else {
Log.e(Config.LOGTAG, account.getJid().toBareJid().toString() + ": ignoring spoofed iq packet");
}
} else {
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if (packet.getFrom().equals(packetCallbackDuple.first.getTo())) {
callback = packetCallbackDuple.second;
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packetCallbacks.remove(packet.getId());
} else {
Log.e(Config.LOGTAG, account.getJid().toBareJid().toString() + ": ignoring spoofed iq packet");
}
}
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} else if (packet.getType() == IqPacket.TYPE.GET || packet.getType() == IqPacket.TYPE.SET) {
callback = this.unregisteredIqListener;
}
}
if (callback != null) {
callback.onIqPacketReceived(account,packet);
}
}
}
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private void processMessage(final Tag currentTag) throws XmlPullParserException, IOException {
final MessagePacket packet = (MessagePacket) processPacket(currentTag,PACKET_MESSAGE);
this.messageListener.onMessagePacketReceived(account, packet);
}
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private void processPresence(final Tag currentTag) throws XmlPullParserException, IOException {
PresencePacket packet = (PresencePacket) processPacket(currentTag, PACKET_PRESENCE);
this.presenceListener.onPresencePacketReceived(account, packet);
}
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private void sendStartTLS() throws IOException {
final Tag startTLS = Tag.empty("starttls");
startTLS.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-tls");
tagWriter.writeTag(startTLS);
}
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private void switchOverToTls(final Tag currentTag) throws XmlPullParserException, IOException {
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tagReader.readTag();
try {
final TlsFactoryVerifier tlsFactoryVerifier = getTlsFactoryVerifier();
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final InetAddress address = socket == null ? null : socket.getInetAddress();
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if (address == null) {
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throw new IOException("could not setup ssl");
}
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final SSLSocket sslSocket = (SSLSocket) tlsFactoryVerifier.factory.createSocket(socket, address.getHostAddress(), socket.getPort(), true);
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if (sslSocket == null) {
throw new IOException("could not initialize ssl socket");
}
SSLSocketHelper.setSecurity(sslSocket);
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if (!tlsFactoryVerifier.verifier.verify(account.getServer().getDomainpart(), sslSocket.getSession())) {
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Log.d(Config.LOGTAG,account.getJid().toBareJid()+": TLS certificate verification failed");
throw new SecurityException();
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}
tagReader.setInputStream(sslSocket.getInputStream());
tagWriter.setOutputStream(sslSocket.getOutputStream());
sendStartStream();
Log.d(Config.LOGTAG, account.getJid().toBareJid()+ ": TLS connection established");
features.encryptionEnabled = true;
final Tag tag = tagReader.readTag();
if (tag != null && tag.isStart("stream")) {
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processStream();
} else {
throw new IOException("server didn't restart stream after STARTTLS");
}
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sslSocket.close();
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} catch (final NoSuchAlgorithmException | KeyManagementException e1) {
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": TLS certificate verification failed");
throw new SecurityException();
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}
}
private void processStreamFeatures(final Tag currentTag)
throws XmlPullParserException, IOException {
this.streamFeatures = tagReader.readElement(currentTag);
if (this.streamFeatures.hasChild("starttls") && !features.encryptionEnabled) {
sendStartTLS();
} else if (this.streamFeatures.hasChild("register") && account.isOptionSet(Account.OPTION_REGISTER)) {
if (features.encryptionEnabled || Config.ALLOW_NON_TLS_CONNECTIONS) {
sendRegistryRequest();
} else {
throw new IncompatibleServerException();
}
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} else if (!this.streamFeatures.hasChild("register")
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&& account.isOptionSet(Account.OPTION_REGISTER)) {
forceCloseSocket();
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changeStatus(Account.State.REGISTRATION_NOT_SUPPORTED);
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} else if (this.streamFeatures.hasChild("mechanisms")
&& shouldAuthenticate
&& (features.encryptionEnabled || Config.ALLOW_NON_TLS_CONNECTIONS)) {
authenticate();
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} else if (this.streamFeatures.hasChild("sm", "urn:xmpp:sm:" + smVersion) && streamId != null) {
if (Config.EXTENDED_SM_LOGGING) {
Log.d(Config.LOGTAG,account.getJid().toBareJid()+": resuming after stanza #"+stanzasReceived);
}
final ResumePacket resume = new ResumePacket(this.streamId, stanzasReceived, smVersion);
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this.tagWriter.writeStanzaAsync(resume);
} else if (needsBinding) {
if (this.streamFeatures.hasChild("bind")) {
sendBindRequest();
} else {
throw new IncompatibleServerException();
}
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}
}
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private void authenticate() throws IOException {
final List<String> mechanisms = extractMechanisms(streamFeatures
.findChild("mechanisms"));
final Element auth = new Element("auth");
auth.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-sasl");
if (mechanisms.contains("EXTERNAL") && account.getPrivateKeyAlias() != null) {
saslMechanism = new External(tagWriter, account, mXmppConnectionService.getRNG());
} else if (mechanisms.contains("SCRAM-SHA-1")) {
saslMechanism = new ScramSha1(tagWriter, account, mXmppConnectionService.getRNG());
} else if (mechanisms.contains("PLAIN")) {
saslMechanism = new Plain(tagWriter, account);
} else if (mechanisms.contains("DIGEST-MD5")) {
saslMechanism = new DigestMd5(tagWriter, account, mXmppConnectionService.getRNG());
}
if (saslMechanism != null) {
final JSONObject keys = account.getKeys();
try {
if (keys.has(Account.PINNED_MECHANISM_KEY) &&
keys.getInt(Account.PINNED_MECHANISM_KEY) > saslMechanism.getPriority()) {
Log.e(Config.LOGTAG, "Auth failed. Authentication mechanism " + saslMechanism.getMechanism() +
" has lower priority (" + String.valueOf(saslMechanism.getPriority()) +
") than pinned priority (" + keys.getInt(Account.PINNED_MECHANISM_KEY) +
"). Possible downgrade attack?");
throw new SecurityException();
}
} catch (final JSONException e) {
Log.d(Config.LOGTAG, "Parse error while checking pinned auth mechanism");
}
Log.d(Config.LOGTAG, account.getJid().toString() + ": Authenticating with " + saslMechanism.getMechanism());
auth.setAttribute("mechanism", saslMechanism.getMechanism());
if (!saslMechanism.getClientFirstMessage().isEmpty()) {
auth.setContent(saslMechanism.getClientFirstMessage());
}
tagWriter.writeElement(auth);
} else {
throw new IncompatibleServerException();
}
}
private List<String> extractMechanisms(final Element stream) {
final ArrayList<String> mechanisms = new ArrayList<>(stream
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.getChildren().size());
for (final Element child : stream.getChildren()) {
mechanisms.add(child.getContent());
}
return mechanisms;
}
private void sendRegistryRequest() {
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final IqPacket register = new IqPacket(IqPacket.TYPE.GET);
register.query("jabber:iq:register");
register.setTo(account.getServer());
sendIqPacket(register, new OnIqPacketReceived() {
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@Override
public void onIqPacketReceived(final Account account, final IqPacket packet) {
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boolean failed = false;
if (packet.getType() == IqPacket.TYPE.RESULT
&& packet.query().hasChild("username")
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&& (packet.query().hasChild("password"))) {
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final IqPacket register = new IqPacket(IqPacket.TYPE.SET);
final Element username = new Element("username").setContent(account.getUsername());
final Element password = new Element("password").setContent(account.getPassword());
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register.query("jabber:iq:register").addChild(username);
register.query().addChild(password);
sendIqPacket(register, registrationResponseListener);
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} else if (packet.getType() == IqPacket.TYPE.RESULT
&& (packet.query().hasChild("x", "jabber:x:data"))) {
final Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
final Element blob = packet.query().findChild("data", "urn:xmpp:bob");
final String id = packet.getId();
Bitmap captcha = null;
if (blob != null) {
try {
final String base64Blob = blob.getContent();
final byte[] strBlob = Base64.decode(base64Blob, Base64.DEFAULT);
InputStream stream = new ByteArrayInputStream(strBlob);
captcha = BitmapFactory.decodeStream(stream);
} catch (Exception e) {
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//ignored
}
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} else {
try {
Field url = data.getFieldByName("url");
String urlString = url.findChildContent("value");
URL uri = new URL(urlString);
captcha = BitmapFactory.decodeStream(uri.openConnection().getInputStream());
} catch (IOException e) {
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Log.e(Config.LOGTAG, e.toString());
}
}
if (captcha != null) {
failed = !mXmppConnectionService.displayCaptchaRequest(account, id, data, captcha);
}
} else {
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failed = true;
}
if (failed) {
final Element instructions = packet.query().findChild("instructions");
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setAccountCreationFailed((instructions != null) ? instructions.getContent() : "");
}
}
});
}
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private void setAccountCreationFailed(String instructions) {
changeStatus(Account.State.REGISTRATION_FAILED);
disconnect(true);
Log.d(Config.LOGTAG, account.getJid().toBareJid()
+ ": could not register. instructions are"
+ instructions);
}
public void resetEverything() {
resetAttemptCount();
resetStreamId();
clearIqCallbacks();
mStanzaQueue.clear();
synchronized (this.disco) {
disco.clear();
}
}
private void sendBindRequest() {
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while(!mXmppConnectionService.areMessagesInitialized() && socket != null && !socket.isClosed()) {
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try {
Thread.sleep(500);
} catch (final InterruptedException ignored) {
}
}
needsBinding = false;
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clearIqCallbacks();
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final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
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iq.addChild("bind", "urn:ietf:params:xml:ns:xmpp-bind")
.addChild("resource").setContent(account.getResource());
this.sendUnmodifiedIqPacket(iq, new OnIqPacketReceived() {
@Override
public void onIqPacketReceived(final Account account, final IqPacket packet) {
if (packet.getType() == IqPacket.TYPE.TIMEOUT) {
return;
}
final Element bind = packet.findChild("bind");
if (bind != null && packet.getType() == IqPacket.TYPE.RESULT) {
final Element jid = bind.findChild("jid");
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if (jid != null && jid.getContent() != null) {
try {
account.setResource(Jid.fromString(jid.getContent()).getResourcepart());
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if (streamFeatures.hasChild("session")
&& !streamFeatures.findChild("session").hasChild("optional")) {
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sendStartSession();
} else {
sendPostBindInitialization();
}
return;
} catch (final InvalidJidException e) {
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Log.d(Config.LOGTAG,account.getJid().toBareJid()+": server reported invalid jid ("+jid.getContent()+") on bind");
2014-07-26 13:44:32 +00:00
}
} else {
2016-03-11 08:01:40 +00:00
Log.d(Config.LOGTAG, account.getJid() + ": disconnecting because of bind failure. (no jid)");
2014-07-26 13:44:32 +00:00
}
} else {
Log.d(Config.LOGTAG, account.getJid() + ": disconnecting because of bind failure (" + packet.toString());
}
2016-05-05 18:22:47 +00:00
forceCloseSocket();
changeStatus(Account.State.BIND_FAILURE);
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}
});
}
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private void clearIqCallbacks() {
final IqPacket failurePacket = new IqPacket(IqPacket.TYPE.TIMEOUT);
final ArrayList<OnIqPacketReceived> callbacks = new ArrayList<>();
2015-08-16 10:12:22 +00:00
synchronized (this.packetCallbacks) {
if (this.packetCallbacks.size() == 0) {
return;
}
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": clearing "+this.packetCallbacks.size()+" iq callbacks");
final Iterator<Pair<IqPacket, OnIqPacketReceived>> iterator = this.packetCallbacks.values().iterator();
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while (iterator.hasNext()) {
Pair<IqPacket, OnIqPacketReceived> entry = iterator.next();
callbacks.add(entry.second);
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iterator.remove();
}
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}
for(OnIqPacketReceived callback : callbacks) {
callback.onIqPacketReceived(account,failurePacket);
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}
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": done clearing iq callbacks. " + this.packetCallbacks.size() + " left");
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}
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public void sendDiscoTimeout() {
final IqPacket failurePacket = new IqPacket(IqPacket.TYPE.ERROR); //don't use timeout
final ArrayList<OnIqPacketReceived> callbacks = new ArrayList<>();
synchronized (this.mPendingServiceDiscoveriesIds) {
for(String id : mPendingServiceDiscoveriesIds) {
synchronized (this.packetCallbacks) {
Pair<IqPacket, OnIqPacketReceived> pair = this.packetCallbacks.remove(id);
if (pair != null) {
callbacks.add(pair.second);
}
}
}
this.mPendingServiceDiscoveriesIds.clear();
}
if (callbacks.size() > 0) {
Log.d(Config.LOGTAG,account.getJid().toBareJid()+": sending disco timeout");
resetStreamId(); //we don't want to live with this for ever
}
for(OnIqPacketReceived callback : callbacks) {
callback.onIqPacketReceived(account,failurePacket);
}
}
private void sendStartSession() {
2016-05-31 21:09:45 +00:00
Log.d(Config.LOGTAG,account.getJid().toBareJid()+": sending legacy session to outdated server");
final IqPacket startSession = new IqPacket(IqPacket.TYPE.SET);
2015-08-06 18:48:55 +00:00
startSession.addChild("session", "urn:ietf:params:xml:ns:xmpp-session");
this.sendUnmodifiedIqPacket(startSession, new OnIqPacketReceived() {
@Override
public void onIqPacketReceived(Account account, IqPacket packet) {
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if (packet.getType() == IqPacket.TYPE.RESULT) {
sendPostBindInitialization();
} else if (packet.getType() != IqPacket.TYPE.TIMEOUT) {
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not init sessions");
disconnect(true);
}
}
});
}
private void sendPostBindInitialization() {
smVersion = 0;
if (streamFeatures.hasChild("sm", "urn:xmpp:sm:3")) {
smVersion = 3;
} else if (streamFeatures.hasChild("sm", "urn:xmpp:sm:2")) {
smVersion = 2;
}
if (smVersion != 0) {
final EnablePacket enable = new EnablePacket(smVersion);
tagWriter.writeStanzaAsync(enable);
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synchronized (this.mStanzaQueue) {
stanzasSent = 0;
mStanzaQueue.clear();
}
}
features.carbonsEnabled = false;
features.blockListRequested = false;
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synchronized (this.disco) {
this.disco.clear();
}
mPendingServiceDiscoveries.set(0);
mIsServiceItemsDiscoveryPending.set(true);
mWaitForDisco = mServerIdentity != Identity.NIMBUZZ;
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lastDiscoStarted = SystemClock.elapsedRealtime();
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": starting service discovery");
mXmppConnectionService.scheduleWakeUpCall(Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
2016-02-03 16:19:05 +00:00
Element caps = streamFeatures.findChild("c");
final String hash = caps == null ? null : caps.getAttribute("hash");
final String ver = caps == null ? null : caps.getAttribute("ver");
ServiceDiscoveryResult discoveryResult = null;
if (hash != null && ver != null) {
discoveryResult = mXmppConnectionService.getCachedServiceDiscoveryResult(new Pair<>(hash, ver));
2016-02-03 16:19:05 +00:00
}
if (discoveryResult == null) {
sendServiceDiscoveryInfo(account.getServer());
} else {
Log.d(Config.LOGTAG,account.getJid().toBareJid()+": server caps came from cache");
disco.put(account.getServer(), discoveryResult);
}
sendServiceDiscoveryInfo(account.getJid().toBareJid());
sendServiceDiscoveryItems(account.getServer());
if (!mWaitForDisco) {
finalizeBind();
}
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this.lastSessionStarted = SystemClock.elapsedRealtime();
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}
private void sendServiceDiscoveryInfo(final Jid jid) {
mPendingServiceDiscoveries.incrementAndGet();
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final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
iq.setTo(jid);
iq.query("http://jabber.org/protocol/disco#info");
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String id = this.sendIqPacket(iq, new OnIqPacketReceived() {
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@Override
public void onIqPacketReceived(final Account account, final IqPacket packet) {
if (packet.getType() == IqPacket.TYPE.RESULT) {
boolean advancedStreamFeaturesLoaded;
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synchronized (XmppConnection.this.disco) {
ServiceDiscoveryResult result = new ServiceDiscoveryResult(packet);
for (final ServiceDiscoveryResult.Identity id : result.getIdentities()) {
if (mServerIdentity == Identity.UNKNOWN && id.getType().equals("im") &&
id.getCategory().equals("server") && id.getName() != null &&
jid.equals(account.getServer())) {
switch (id.getName()) {
case "Prosody":
mServerIdentity = Identity.PROSODY;
break;
case "ejabberd":
mServerIdentity = Identity.EJABBERD;
break;
case "Slack-XMPP":
mServerIdentity = Identity.SLACK;
break;
}
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": server name: " + id.getName());
}
2014-11-15 16:24:06 +00:00
}
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if (jid.equals(account.getServer())) {
mXmppConnectionService.databaseBackend.insertDiscoveryResult(result);
}
disco.put(jid, result);
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advancedStreamFeaturesLoaded = disco.containsKey(account.getServer())
&& disco.containsKey(account.getJid().toBareJid());
}
if (advancedStreamFeaturesLoaded && (jid.equals(account.getServer()) || jid.equals(account.getJid().toBareJid()))) {
enableAdvancedStreamFeatures();
2014-11-15 16:24:06 +00:00
}
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} else {
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not query disco info for " + jid.toString());
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}
if (packet.getType() != IqPacket.TYPE.TIMEOUT) {
if (mPendingServiceDiscoveries.decrementAndGet() == 0
&& !mIsServiceItemsDiscoveryPending.get()
&& mWaitForDisco) {
finalizeBind();
}
}
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}
});
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synchronized (this.mPendingServiceDiscoveriesIds) {
this.mPendingServiceDiscoveriesIds.add(id);
}
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}
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private void finalizeBind() {
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": online with resource " + account.getResource());
if (bindListener != null) {
bindListener.onBind(account);
}
changeStatus(Account.State.ONLINE);
}
private void enableAdvancedStreamFeatures() {
if (getFeatures().carbons() && !features.carbonsEnabled) {
sendEnableCarbons();
}
if (getFeatures().blocking() && !features.blockListRequested) {
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": Requesting block list");
this.sendIqPacket(getIqGenerator().generateGetBlockList(), mXmppConnectionService.getIqParser());
}
for (final OnAdvancedStreamFeaturesLoaded listener : advancedStreamFeaturesLoadedListeners) {
listener.onAdvancedStreamFeaturesAvailable(account);
}
}
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private void sendServiceDiscoveryItems(final Jid server) {
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final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
iq.setTo(server.toDomainJid());
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iq.query("http://jabber.org/protocol/disco#items");
String id = this.sendIqPacket(iq, new OnIqPacketReceived() {
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@Override
public void onIqPacketReceived(final Account account, final IqPacket packet) {
if (packet.getType() == IqPacket.TYPE.RESULT) {
final List<Element> elements = packet.query().getChildren();
for (final Element element : elements) {
if (element.getName().equals("item")) {
final Jid jid = element.getAttributeAsJid("jid");
if (jid != null && !jid.equals(account.getServer())) {
sendServiceDiscoveryInfo(jid);
}
}
}
} else {
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Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not query disco items of " + server);
}
if (packet.getType() != IqPacket.TYPE.TIMEOUT) {
mIsServiceItemsDiscoveryPending.set(false);
if (mPendingServiceDiscoveries.get() == 0 && mWaitForDisco) {
finalizeBind();
}
}
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}
});
synchronized (this.mPendingServiceDiscoveriesIds) {
this.mPendingServiceDiscoveriesIds.add(id);
}
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}
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private void sendEnableCarbons() {
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final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
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iq.addChild("enable", "urn:xmpp:carbons:2");
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this.sendIqPacket(iq, new OnIqPacketReceived() {
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@Override
public void onIqPacketReceived(final Account account, final IqPacket packet) {
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if (!packet.hasChild("error")) {
Log.d(Config.LOGTAG, account.getJid().toBareJid()
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+ ": successfully enabled carbons");
features.carbonsEnabled = true;
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} else {
Log.d(Config.LOGTAG, account.getJid().toBareJid()
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+ ": error enableing carbons " + packet.toString());
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}
}
});
}
private void processStreamError(final Tag currentTag)
throws XmlPullParserException, IOException {
final Element streamError = tagReader.readElement(currentTag);
if (streamError == null) {
return;
}
Log.d(Config.LOGTAG,account.getJid().toBareJid()+": stream error "+streamError.toString());
if (streamError.hasChild("conflict")) {
final String resource = account.getResource().split("\\.")[0];
account.setResource(resource + "." + nextRandomId());
Log.d(Config.LOGTAG,
account.getJid().toBareJid() + ": switching resource due to conflict ("
+ account.getResource() + ")");
} else if (streamError.hasChild("host-unknown")) {
changeStatus(Account.State.HOST_UNKNOWN);
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}
forceCloseSocket();
}
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private void sendStartStream() throws IOException {
final Tag stream = Tag.start("stream:stream");
stream.setAttribute("to", account.getServer().toString());
stream.setAttribute("version", "1.0");
stream.setAttribute("xml:lang", "en");
stream.setAttribute("xmlns", "jabber:client");
stream.setAttribute("xmlns:stream", "http://etherx.jabber.org/streams");
tagWriter.writeTag(stream);
}
private String nextRandomId() {
return new BigInteger(50, mXmppConnectionService.getRNG()).toString(32);
}
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public String sendIqPacket(final IqPacket packet, final OnIqPacketReceived callback) {
packet.setFrom(account.getJid());
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return this.sendUnmodifiedIqPacket(packet, callback);
}
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private synchronized String sendUnmodifiedIqPacket(final IqPacket packet, final OnIqPacketReceived callback) {
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if (packet.getId() == null) {
final String id = nextRandomId();
packet.setAttribute("id", id);
}
if (callback != null) {
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synchronized (this.packetCallbacks) {
packetCallbacks.put(packet.getId(), new Pair<>(packet, callback));
}
}
this.sendPacket(packet);
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return packet.getId();
}
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public void sendMessagePacket(final MessagePacket packet) {
this.sendPacket(packet);
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}
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public void sendPresencePacket(final PresencePacket packet) {
this.sendPacket(packet);
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}
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private synchronized void sendPacket(final AbstractStanza packet) {
if (stanzasSent == Integer.MAX_VALUE) {
resetStreamId();
disconnect(true);
return;
}
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tagWriter.writeStanzaAsync(packet);
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if (packet instanceof AbstractAcknowledgeableStanza) {
AbstractAcknowledgeableStanza stanza = (AbstractAcknowledgeableStanza) packet;
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synchronized (this.mStanzaQueue) {
++stanzasSent;
this.mStanzaQueue.append(stanzasSent, stanza);
}
if (stanza instanceof MessagePacket && stanza.getId() != null && getFeatures().sm()) {
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if (Config.EXTENDED_SM_LOGGING) {
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": requesting ack for message stanza #" + stanzasSent);
}
tagWriter.writeStanzaAsync(new RequestPacket(this.smVersion));
}
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}
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}
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public void sendPing() {
if (!r()) {
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final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
iq.setFrom(account.getJid());
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iq.addChild("ping", "urn:xmpp:ping");
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this.sendIqPacket(iq, null);
}
this.lastPingSent = SystemClock.elapsedRealtime();
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}
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public void setOnMessagePacketReceivedListener(
final OnMessagePacketReceived listener) {
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this.messageListener = listener;
}
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public void setOnUnregisteredIqPacketReceivedListener(
final OnIqPacketReceived listener) {
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this.unregisteredIqListener = listener;
}
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public void setOnPresencePacketReceivedListener(
final OnPresencePacketReceived listener) {
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this.presenceListener = listener;
}
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public void setOnJinglePacketReceivedListener(
final OnJinglePacketReceived listener) {
this.jingleListener = listener;
}
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public void setOnStatusChangedListener(final OnStatusChanged listener) {
this.statusListener = listener;
}
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public void setOnBindListener(final OnBindListener listener) {
this.bindListener = listener;
}
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public void setOnMessageAcknowledgeListener(final OnMessageAcknowledged listener) {
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this.acknowledgedListener = listener;
}
public void addOnAdvancedStreamFeaturesAvailableListener(final OnAdvancedStreamFeaturesLoaded listener) {
if (!this.advancedStreamFeaturesLoadedListeners.contains(listener)) {
this.advancedStreamFeaturesLoadedListeners.add(listener);
}
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}
public void waitForPush() {
if (tagWriter.isActive()) {
tagWriter.finish();
new Thread(new Runnable() {
@Override
public void run() {
try {
while(!tagWriter.finished()) {
Thread.sleep(10);
}
socket.close();
Log.d(Config.LOGTAG,account.getJid().toBareJid()+": closed tcp without closing stream");
} catch (IOException | InterruptedException e) {
return;
}
}
}).start();
} else {
forceCloseSocket();
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": closed tcp without closing stream (no waiting)");
}
}
private void forceCloseSocket() {
if (socket != null) {
try {
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socket.close();
} catch (IOException e) {
e.printStackTrace();
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}
}
}
public void interrupt() {
Thread.currentThread().interrupt();
}
public void disconnect(final boolean force) {
interrupt();
Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": disconnecting force="+Boolean.valueOf(force));
if (force) {
tagWriter.forceClose();
forceCloseSocket();
} else {
if (tagWriter.isActive()) {
tagWriter.finish();
try {
int i = 0;
boolean warned = false;
while (!tagWriter.finished() && socket.isConnected() && i <= 10) {
if (!warned) {
Log.d(Config.LOGTAG, account.getJid().toBareJid()+": waiting for tag writer to finish");
warned = true;
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}
Thread.sleep(200);
i++;
}
if (warned) {
Log.d(Config.LOGTAG,account.getJid().toBareJid()+": tag writer has finished");
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}
Log.d(Config.LOGTAG,account.getJid().toBareJid()+": closing stream");
tagWriter.writeTag(Tag.end("stream:stream"));
} catch (final IOException e) {
Log.d(Config.LOGTAG,account.getJid().toBareJid()+": io exception during disconnect ("+e.getMessage()+")");
} catch (final InterruptedException e) {
Log.d(Config.LOGTAG, "interrupted");
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}
}
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}
}
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public void resetStreamId() {
this.streamId = null;
}
private List<Entry<Jid, ServiceDiscoveryResult>> findDiscoItemsByFeature(final String feature) {
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synchronized (this.disco) {
final List<Entry<Jid, ServiceDiscoveryResult>> items = new ArrayList<>();
for (final Entry<Jid, ServiceDiscoveryResult> cursor : this.disco.entrySet()) {
if (cursor.getValue().getFeatures().contains(feature)) {
items.add(cursor);
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}
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}
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return items;
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}
}
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public Jid findDiscoItemByFeature(final String feature) {
final List<Entry<Jid, ServiceDiscoveryResult>> items = findDiscoItemsByFeature(feature);
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if (items.size() >= 1) {
return items.get(0).getKey();
}
return null;
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}
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public boolean r() {
if (getFeatures().sm()) {
this.tagWriter.writeStanzaAsync(new RequestPacket(smVersion));
return true;
} else {
return false;
}
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}
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public String getMucServer() {
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synchronized (this.disco) {
for (final Entry<Jid, ServiceDiscoveryResult> cursor : disco.entrySet()) {
final ServiceDiscoveryResult value = cursor.getValue();
if (value.getFeatures().contains("http://jabber.org/protocol/muc")
&& !value.getFeatures().contains("jabber:iq:gateway")
&& !value.hasIdentity("conference", "irc")) {
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return cursor.getKey().toString();
}
}
}
return null;
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}
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public int getTimeToNextAttempt() {
final int interval = Math.min((int) (25 * Math.pow(1.3, attempt)), 300);
final int secondsSinceLast = (int) ((SystemClock.elapsedRealtime() - this.lastConnect) / 1000);
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return interval - secondsSinceLast;
}
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public int getAttempt() {
return this.attempt;
}
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public Features getFeatures() {
return this.features;
}
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public long getLastSessionEstablished() {
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final long diff = SystemClock.elapsedRealtime() - this.lastSessionStarted;
return System.currentTimeMillis() - diff;
}
public long getLastConnect() {
return this.lastConnect;
}
public long getLastPingSent() {
return this.lastPingSent;
}
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public long getLastDiscoStarted() {
return this.lastDiscoStarted;
}
public long getLastPacketReceived() {
return this.lastPacketReceived;
}
public void sendActive() {
this.sendPacket(new ActivePacket());
}
public void sendInactive() {
this.sendPacket(new InactivePacket());
}
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public void resetAttemptCount() {
this.attempt = 0;
this.lastConnect = 0;
}
public void setInteractive(boolean interactive) {
this.mInteractive = interactive;
}
public Identity getServerIdentity() {
return mServerIdentity;
}
private class UnauthorizedException extends IOException {
}
private class SecurityException extends IOException {
}
private class IncompatibleServerException extends IOException {
}
public enum Identity {
FACEBOOK,
SLACK,
EJABBERD,
PROSODY,
NIMBUZZ,
UNKNOWN
}
public class Features {
XmppConnection connection;
private boolean carbonsEnabled = false;
private boolean encryptionEnabled = false;
private boolean blockListRequested = false;
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public Features(final XmppConnection connection) {
this.connection = connection;
}
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private boolean hasDiscoFeature(final Jid server, final String feature) {
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synchronized (XmppConnection.this.disco) {
return connection.disco.containsKey(server) &&
connection.disco.get(server).getFeatures().contains(feature);
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}
}
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public boolean carbons() {
return hasDiscoFeature(account.getServer(), "urn:xmpp:carbons:2");
}
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public boolean blocking() {
return hasDiscoFeature(account.getServer(), Xmlns.BLOCKING);
}
public boolean register() {
return hasDiscoFeature(account.getServer(), Xmlns.REGISTER);
}
public boolean sm() {
return streamId != null
|| (connection.streamFeatures != null && connection.streamFeatures.hasChild("sm"));
}
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public boolean csi() {
return connection.streamFeatures != null && connection.streamFeatures.hasChild("csi", "urn:xmpp:csi:0");
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}
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public boolean pep() {
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synchronized (XmppConnection.this.disco) {
ServiceDiscoveryResult info = disco.get(account.getJid().toBareJid());
return info != null && info.hasIdentity("pubsub", "pep");
}
}
public boolean pepPersistent() {
synchronized (XmppConnection.this.disco) {
ServiceDiscoveryResult info = disco.get(account.getJid().toBareJid());
return info != null && info.getFeatures().contains("http://jabber.org/protocol/pubsub#persistent-items");
}
}
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public boolean mam() {
return hasDiscoFeature(account.getJid().toBareJid(), "urn:xmpp:mam:0")
|| hasDiscoFeature(account.getServer(), "urn:xmpp:mam:0");
}
public boolean push() {
return hasDiscoFeature(account.getJid().toBareJid(), "urn:xmpp:push:0")
|| hasDiscoFeature(account.getServer(), "urn:xmpp:push:0");
}
public boolean rosterVersioning() {
return connection.streamFeatures != null && connection.streamFeatures.hasChild("ver");
}
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public void setBlockListRequested(boolean value) {
this.blockListRequested = value;
}
public boolean httpUpload(long filesize) {
if (Config.DISABLE_HTTP_UPLOAD) {
return false;
} else {
List<Entry<Jid, ServiceDiscoveryResult>> items = findDiscoItemsByFeature(Xmlns.HTTP_UPLOAD);
if (items.size() > 0) {
try {
long maxsize = Long.parseLong(items.get(0).getValue().getExtendedDiscoInformation(Xmlns.HTTP_UPLOAD, "max-file-size"));
if(filesize <= maxsize) {
return true;
} else {
Log.d(Config.LOGTAG,account.getJid().toBareJid()+": http upload is not available for files with size "+filesize+" (max is "+maxsize+")");
return false;
}
} catch (Exception e) {
return true;
}
} else {
return false;
}
}
}
public long getMaxHttpUploadSize() {
List<Entry<Jid, ServiceDiscoveryResult>> items = findDiscoItemsByFeature(Xmlns.HTTP_UPLOAD);
if (items.size() > 0) {
try {
return Long.parseLong(items.get(0).getValue().getExtendedDiscoInformation(Xmlns.HTTP_UPLOAD, "max-file-size"));
} catch (Exception e) {
return -1;
}
} else {
return -1;
}
}
}
private IqGenerator getIqGenerator() {
return mXmppConnectionService.getIqGenerator();
}
}