anotherim/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java
2024-02-28 12:01:18 +01:00

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package eu.siacs.conversations.xmpp;
import static eu.siacs.conversations.utils.Random.SECURE_RANDOM;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Build;
import android.os.SystemClock;
import android.security.KeyChain;
import android.util.Base64;
import android.util.Log;
import android.util.Pair;
import android.util.SparseArray;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import com.google.common.base.MoreObjects;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableList;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.R;
import eu.siacs.conversations.crypto.XmppDomainVerifier;
import eu.siacs.conversations.crypto.axolotl.AxolotlService;
import eu.siacs.conversations.crypto.sasl.ChannelBinding;
import eu.siacs.conversations.crypto.sasl.ChannelBindingMechanism;
import eu.siacs.conversations.crypto.sasl.HashedToken;
import eu.siacs.conversations.crypto.sasl.SaslMechanism;
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.http.HttpConnectionManager;
import eu.siacs.conversations.persistance.FileBackend;
import eu.siacs.conversations.services.MemorizingTrustManager;
import eu.siacs.conversations.services.MessageArchiveService;
import eu.siacs.conversations.services.NotificationService;
import eu.siacs.conversations.services.XmppConnectionService;
import eu.siacs.conversations.utils.AccountUtils;
import eu.siacs.conversations.utils.CryptoHelper;
import eu.siacs.conversations.utils.Patterns;
import eu.siacs.conversations.utils.PhoneHelper;
import eu.siacs.conversations.utils.Resolver;
import eu.siacs.conversations.utils.SSLSockets;
import eu.siacs.conversations.utils.SocksSocketFactory;
import eu.siacs.conversations.utils.XmlHelper;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xml.LocalizedContent;
import eu.siacs.conversations.xml.Namespace;
import eu.siacs.conversations.xml.Tag;
import eu.siacs.conversations.xml.TagWriter;
import eu.siacs.conversations.xml.XmlReader;
import eu.siacs.conversations.xmpp.bind.Bind2;
import eu.siacs.conversations.xmpp.forms.Data;
import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
import eu.siacs.conversations.xmpp.stanzas.AbstractAcknowledgeableStanza;
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;
import eu.siacs.conversations.xmpp.stanzas.csi.ActivePacket;
import eu.siacs.conversations.xmpp.stanzas.csi.InactivePacket;
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;
import okhttp3.HttpUrl;
import org.xmlpull.v1.XmlPullParserException;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.ConnectException;
import java.net.IDN;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.Principal;
import java.security.PrivateKey;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import java.util.Map.Entry;
import java.util.Set;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.regex.Matcher;
import javax.net.ssl.KeyManager;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLPeerUnverifiedException;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.X509KeyManager;
import javax.net.ssl.X509TrustManager;
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;
public final OnIqPacketReceived registrationResponseListener =
(account, packet) -> {
if (packet.getType() == IqPacket.TYPE.RESULT) {
account.setOption(Account.OPTION_REGISTER, false);
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": successfully registered new account on server");
throw new StateChangingError(Account.State.REGISTRATION_SUCCESSFUL);
} else {
final List<String> PASSWORD_TOO_WEAK_MSGS =
Arrays.asList(
"The password is too weak", "Please use a longer password.");
Element error = packet.findChild("error");
Account.State state = Account.State.REGISTRATION_FAILED;
if (error != null) {
if (error.hasChild("conflict")) {
state = Account.State.REGISTRATION_CONFLICT;
} else if (error.hasChild("resource-constraint")
&& "wait".equals(error.getAttribute("type"))) {
state = Account.State.REGISTRATION_PLEASE_WAIT;
} else if (error.hasChild("not-acceptable")
&& PASSWORD_TOO_WEAK_MSGS.contains(
error.findChildContent("text"))) {
state = Account.State.REGISTRATION_PASSWORD_TOO_WEAK;
}
}
throw new StateChangingError(state);
}
};
protected final Account account;
private final Features features = new Features(this);
private final HashMap<Jid, ServiceDiscoveryResult> disco = new HashMap<>();
private final HashMap<String, Jid> commands = new HashMap<>();
private final SparseArray<AbstractAcknowledgeableStanza> mStanzaQueue = new SparseArray<>();
private final Hashtable<String, Pair<IqPacket, OnIqPacketReceived>> packetCallbacks =
new Hashtable<>();
private final Set<OnAdvancedStreamFeaturesLoaded> advancedStreamFeaturesLoadedListeners =
new HashSet<>();
private final XmppConnectionService mXmppConnectionService;
private Socket socket;
private XmlReader tagReader;
private TagWriter tagWriter = new TagWriter();
private boolean shouldAuthenticate = true;
private boolean inSmacksSession = false;
private boolean quickStartInProgress = false;
private boolean isBound = false;
private boolean offlineMessagesRetrieved = false;
private Element streamFeatures;
private Element boundStreamFeatures;
private StreamId streamId = null;
private int stanzasReceived = 0;
private int stanzasSent = 0;
private int stanzasSentBeforeAuthentication;
private long lastPacketReceived = 0;
private long lastPingSent = 0;
private long lastConnect = 0;
private long lastSessionStarted = 0;
private long lastDiscoStarted = 0;
private boolean isMamPreferenceAlways = false;
private final AtomicInteger mPendingServiceDiscoveries = new AtomicInteger(0);
private final AtomicBoolean mWaitForDisco = new AtomicBoolean(true);
private final AtomicBoolean mWaitingForSmCatchup = new AtomicBoolean(false);
private final AtomicInteger mSmCatchupMessageCounter = new AtomicInteger(0);
private boolean mInteractive = false;
private int attempt = 0;
private OnPresencePacketReceived presenceListener = null;
private OnJinglePacketReceived jingleListener = null;
private OnIqPacketReceived unregisteredIqListener = null;
private OnMessagePacketReceived messageListener = null;
private OnStatusChanged statusListener = null;
private OnBindListener bindListener = null;
private OnMessageAcknowledged acknowledgedListener = null;
private LoginInfo loginInfo;
private HashedToken.Mechanism hashTokenRequest;
private HttpUrl redirectionUrl = null;
private String verifiedHostname = null;
private Resolver.Result currentResolverResult;
private Resolver.Result seeOtherHostResolverResult;
private volatile Thread mThread;
private CountDownLatch mStreamCountDownLatch;
public XmppConnection(final Account account, final XmppConnectionService service) {
this.account = account;
this.mXmppConnectionService = service;
}
private static void fixResource(Context context, Account account) {
String resource = account.getResource();
int fixedPartLength =
context.getString(R.string.app_name).length() + 1; // include the trailing dot
int randomPartLength = 4; // 3 bytes
if (resource != null && resource.length() > fixedPartLength + randomPartLength) {
if (validBase64(
resource.substring(fixedPartLength, fixedPartLength + randomPartLength))) {
account.setResource(resource.substring(0, fixedPartLength + randomPartLength));
}
}
}
private static boolean validBase64(String input) {
try {
return Base64.decode(input, Base64.URL_SAFE).length == 3;
} catch (Throwable throwable) {
return false;
}
}
private void changeStatus(final Account.State nextStatus) {
synchronized (this) {
if (Thread.currentThread().isInterrupted()) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": not changing status to "
+ nextStatus
+ " because thread was interrupted");
return;
}
if (account.getStatus() != nextStatus) {
if (nextStatus == Account.State.OFFLINE
&& account.getStatus() != Account.State.CONNECTING
&& account.getStatus() != Account.State.ONLINE
&& account.getStatus() != Account.State.DISABLED
&& account.getStatus() != Account.State.LOGGED_OUT) {
return;
}
if (nextStatus == Account.State.ONLINE) {
this.attempt = 0;
}
account.setStatus(nextStatus);
} else {
return;
}
}
if (statusListener != null) {
statusListener.onStatusChanged(account);
}
}
public Jid getJidForCommand(final String node) {
synchronized (this.commands) {
return this.commands.get(node);
}
}
public void prepareNewConnection() {
this.lastConnect = SystemClock.elapsedRealtime();
this.lastPingSent = SystemClock.elapsedRealtime();
this.lastDiscoStarted = Long.MAX_VALUE;
this.mWaitingForSmCatchup.set(false);
this.changeStatus(Account.State.CONNECTING);
}
public boolean isWaitingForSmCatchup() {
return mWaitingForSmCatchup.get();
}
public void incrementSmCatchupMessageCounter() {
this.mSmCatchupMessageCounter.incrementAndGet();
}
protected void connect() {
if (mXmppConnectionService.areMessagesInitialized()) {
mXmppConnectionService.resetSendingToWaiting(account);
}
Log.d(Config.LOGTAG, account.getJid().asBareJid().toString() + ": connecting");
this.loginInfo = null;
this.features.encryptionEnabled = false;
this.inSmacksSession = false;
this.quickStartInProgress = false;
this.isBound = false;
this.attempt++;
this.verifiedHostname =
null; // will be set if user entered hostname is being used or hostname was verified
// with dnssec
try {
Socket localSocket;
shouldAuthenticate = !account.isOptionSet(Account.OPTION_REGISTER);
this.changeStatus(Account.State.CONNECTING);
final boolean useTor = mXmppConnectionService.useTorToConnect() || account.isOnion();
final boolean extended = mXmppConnectionService.showExtendedConnectionOptions();
if (useTor) {
String destination;
if (account.getHostname().isEmpty() || account.isOnion()) {
destination = account.getServer();
} else {
destination = account.getHostname();
this.verifiedHostname = destination;
}
final int port = account.getPort();
final boolean directTls = Resolver.useDirectTls(port);
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": connect to "
+ destination
+ " via Tor. directTls="
+ directTls);
localSocket = SocksSocketFactory.createSocketOverTor(destination, port);
if (directTls) {
localSocket = upgradeSocketToTls(localSocket);
features.encryptionEnabled = true;
}
try {
startXmpp(localSocket);
} catch (final InterruptedException e) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": thread was interrupted before beginning stream");
return;
} catch (final Exception e) {
throw new IOException("Could not start stream", e);
}
} else {
final String domain = account.getServer();
final List<Resolver.Result> results = new ArrayList<>();
final boolean hardcoded = extended && !account.getHostname().isEmpty();
if (hardcoded) {
results.addAll(
Resolver.fromHardCoded(account.getHostname(), account.getPort()));
} else {
results.addAll(Resolver.resolve(domain));
}
if (Thread.currentThread().isInterrupted()) {
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": Thread was interrupted");
return;
}
if (results.size() == 0) {
Log.e(
Config.LOGTAG,
account.getJid().asBareJid() + ": Resolver results were empty");
return;
}
final Resolver.Result storedBackupResult;
if (hardcoded) {
storedBackupResult = null;
} else {
storedBackupResult =
mXmppConnectionService.databaseBackend.findResolverResult(domain);
if (storedBackupResult != null && !results.contains(storedBackupResult)) {
results.add(storedBackupResult);
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": loaded backup resolver result from db: "
+ storedBackupResult);
}
}
final StreamId streamId = this.streamId;
final Resolver.Result resumeLocation = streamId == null ? null : streamId.location;
if (resumeLocation != null) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": injected resume location on position 0");
results.add(0, resumeLocation);
}
final Resolver.Result seeOtherHost = this.seeOtherHostResolverResult;
if (seeOtherHost != null) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": injected see-other-host on position 0");
results.add(0, seeOtherHost);
}
for (final Iterator<Resolver.Result> iterator = results.iterator();
iterator.hasNext(); ) {
final Resolver.Result result = iterator.next();
if (Thread.currentThread().isInterrupted()) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid() + ": Thread was interrupted");
return;
}
try {
// if tls is true, encryption is implied and must not be started
features.encryptionEnabled = result.isDirectTls();
verifiedHostname =
result.isAuthenticated() ? result.getHostname().toString() : null;
final InetSocketAddress addr;
if (result.getIp() != null) {
addr = new InetSocketAddress(result.getIp(), result.getPort());
Log.d(
Config.LOGTAG,
account.getJid().asBareJid().toString()
+ ": using values from resolver "
+ (result.getHostname() == null
? ""
: result.getHostname().toString() + "/")
+ result.getIp().getHostAddress()
+ ":"
+ result.getPort()
+ " tls: "
+ features.encryptionEnabled);
} else {
addr =
new InetSocketAddress(
IDN.toASCII(result.getHostname().toString()),
result.getPort());
Log.d(
Config.LOGTAG,
account.getJid().asBareJid().toString()
+ ": using values from resolver "
+ result.getHostname().toString()
+ ":"
+ result.getPort()
+ " tls: "
+ features.encryptionEnabled);
}
localSocket = new Socket();
localSocket.connect(addr, Config.SOCKET_TIMEOUT * 1000);
if (features.encryptionEnabled) {
localSocket = upgradeSocketToTls(localSocket);
}
localSocket.setSoTimeout(Config.SOCKET_TIMEOUT * 1000);
if (startXmpp(localSocket)) {
localSocket.setSoTimeout(
0); // reset to 0; once the connection is established we dont
// want this
if (!hardcoded && !result.equals(storedBackupResult)) {
mXmppConnectionService.databaseBackend.saveResolverResult(
domain, result);
}
this.currentResolverResult = result;
this.seeOtherHostResolverResult = null;
break; // successfully connected to server that speaks xmpp
} else {
FileBackend.close(localSocket);
throw new StateChangingException(Account.State.STREAM_OPENING_ERROR);
}
} catch (final StateChangingException e) {
if (!iterator.hasNext()) {
throw e;
}
} catch (InterruptedException e) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": thread was interrupted before beginning stream");
return;
} catch (final Throwable e) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid().toString()
+ ": "
+ e.getMessage()
+ "("
+ e.getClass().getName()
+ ")");
if (!iterator.hasNext()) {
throw new UnknownHostException();
}
}
}
}
processStream();
} catch (final SecurityException e) {
this.changeStatus(Account.State.MISSING_INTERNET_PERMISSION);
} catch (final StateChangingException e) {
this.changeStatus(e.state);
} catch (final UnknownHostException
| ConnectException
| SocksSocketFactory.HostNotFoundException e) {
this.changeStatus(Account.State.SERVER_NOT_FOUND);
} catch (final SocksSocketFactory.SocksProxyNotFoundException e) {
this.changeStatus(Account.State.TOR_NOT_AVAILABLE);
} catch (final IOException | XmlPullParserException e) {
Log.d(Config.LOGTAG, account.getJid().asBareJid().toString() + ": " + e.getMessage());
this.changeStatus(Account.State.OFFLINE);
this.attempt = Math.max(0, this.attempt - 1);
} finally {
if (!Thread.currentThread().isInterrupted()) {
forceCloseSocket();
} else {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": not force closing socket because thread was interrupted");
}
}
}
/**
* Starts xmpp protocol, call after connecting to socket
*
* @return true if server returns with valid xmpp, false otherwise
*/
private boolean startXmpp(final Socket socket) throws Exception {
if (Thread.currentThread().isInterrupted()) {
throw new InterruptedException();
}
this.socket = socket;
tagReader = new XmlReader();
if (tagWriter != null) {
tagWriter.forceClose();
}
tagWriter = new TagWriter();
tagWriter.setOutputStream(socket.getOutputStream());
tagReader.setInputStream(socket.getInputStream());
tagWriter.beginDocument();
final boolean quickStart;
if (socket instanceof SSLSocket sslSocket) {
SSLSockets.log(account, sslSocket);
quickStart = establishStream(SSLSockets.version(sslSocket));
} else {
quickStart = establishStream(SSLSockets.Version.NONE);
}
final Tag tag = tagReader.readTag();
if (Thread.currentThread().isInterrupted()) {
throw new InterruptedException();
}
if (tag == null) {
return false;
}
final boolean success = tag.isStart("stream", Namespace.STREAMS);
if (success) {
final var from = tag.getAttribute("from");
if (from == null || !from.equals(account.getServer())) {
throw new StateChangingException(Account.State.HOST_UNKNOWN);
}
}
if (success && quickStart) {
this.quickStartInProgress = true;
}
return success;
}
private SSLSocketFactory getSSLSocketFactory()
throws NoSuchAlgorithmException, KeyManagementException {
final SSLContext sc = SSLSockets.getSSLContext();
final MemorizingTrustManager trustManager =
this.mXmppConnectionService.getMemorizingTrustManager();
final KeyManager[] keyManager;
if (account.getPrivateKeyAlias() != null) {
keyManager = new KeyManager[] {new MyKeyManager()};
} else {
keyManager = null;
}
final String domain = account.getServer();
sc.init(
keyManager,
new X509TrustManager[] {
mInteractive
? trustManager.getInteractive(domain)
: trustManager.getNonInteractive(domain)
},
SECURE_RANDOM);
return sc.getSocketFactory();
}
@Override
public void run() {
synchronized (this) {
this.mThread = Thread.currentThread();
if (this.mThread.isInterrupted()) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": aborting connect because thread was interrupted");
return;
}
forceCloseSocket();
}
connect();
}
private void processStream() throws XmlPullParserException, IOException {
final CountDownLatch streamCountDownLatch = new CountDownLatch(1);
this.mStreamCountDownLatch = streamCountDownLatch;
Tag nextTag = tagReader.readTag();
while (nextTag != null && !nextTag.isEnd("stream")) {
if (nextTag.isStart("error")) {
processStreamError(nextTag);
} else if (nextTag.isStart("features", Namespace.STREAMS)) {
processStreamFeatures(nextTag);
} else if (nextTag.isStart("proceed", Namespace.TLS)) {
switchOverToTls();
} else if (nextTag.isStart("failure", Namespace.TLS)) {
throw new StateChangingException(Account.State.TLS_ERROR);
} else if (account.isOptionSet(Account.OPTION_REGISTER)
&& nextTag.isStart("iq", Namespace.JABBER_CLIENT)) {
processIq(nextTag);
} else if (!isSecure() || this.loginInfo == null) {
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
} else if (nextTag.isStart("success")) {
final Element success = tagReader.readElement(nextTag);
if (processSuccess(success)) {
break;
}
} else if (nextTag.isStart("failure")) {
final Element failure = tagReader.readElement(nextTag);
processFailure(failure);
} else if (nextTag.isStart("continue", Namespace.SASL_2)) {
// two step sasl2 - we dont support this yet
throw new StateChangingException(Account.State.INCOMPATIBLE_CLIENT);
} else if (nextTag.isStart("challenge")) {
final Element challenge = tagReader.readElement(nextTag);
processChallenge(challenge);
} else if (!LoginInfo.isSuccess(this.loginInfo)) {
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
} else if (this.streamId != null
&& nextTag.isStart("resumed", Namespace.STREAM_MANAGEMENT)) {
final Element resumed = tagReader.readElement(nextTag);
processResumed(resumed);
} else if (nextTag.isStart("failed", Namespace.STREAM_MANAGEMENT)) {
final Element failed = tagReader.readElement(nextTag);
processFailed(failed, true);
} else if (nextTag.isStart("iq", Namespace.JABBER_CLIENT)) {
processIq(nextTag);
} else if (!isBound) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": server sent unexpected"
+ nextTag.identifier());
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
} else if (nextTag.isStart("message", Namespace.JABBER_CLIENT)) {
processMessage(nextTag);
} else if (nextTag.isStart("presence", Namespace.JABBER_CLIENT)) {
processPresence(nextTag);
} else if (nextTag.isStart("enabled", Namespace.STREAM_MANAGEMENT)) {
final Element enabled = tagReader.readElement(nextTag);
processEnabled(enabled);
} else if (nextTag.isStart("r", Namespace.STREAM_MANAGEMENT)) {
tagReader.readElement(nextTag);
if (Config.EXTENDED_SM_LOGGING) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": acknowledging stanza #"
+ this.stanzasReceived);
}
final AckPacket ack = new AckPacket(this.stanzasReceived);
tagWriter.writeStanzaAsync(ack);
} else if (nextTag.isStart("a", Namespace.STREAM_MANAGEMENT)) {
boolean accountUiNeedsRefresh = false;
synchronized (NotificationService.CATCHUP_LOCK) {
if (mWaitingForSmCatchup.compareAndSet(true, false)) {
final int messageCount = mSmCatchupMessageCounter.get();
final int pendingIQs = packetCallbacks.size();
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": SM catchup complete (messages="
+ messageCount
+ ", pending IQs="
+ pendingIQs
+ ")");
accountUiNeedsRefresh = true;
if (messageCount > 0) {
mXmppConnectionService
.getNotificationService()
.finishBacklog(true, account);
}
}
}
if (accountUiNeedsRefresh) {
mXmppConnectionService.updateAccountUi();
}
final Element ack = tagReader.readElement(nextTag);
lastPacketReceived = SystemClock.elapsedRealtime();
final boolean acknowledgedMessages;
synchronized (this.mStanzaQueue) {
final Optional<Integer> serverSequence = ack.getOptionalIntAttribute("h");
if (serverSequence.isPresent()) {
acknowledgedMessages = acknowledgeStanzaUpTo(serverSequence.get());
} else {
acknowledgedMessages = false;
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": server send ack without sequence number");
}
}
if (acknowledgedMessages) {
mXmppConnectionService.updateConversationUi();
}
} else {
Log.e(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": Encountered unknown stream element"
+ nextTag.identifier());
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
nextTag = tagReader.readTag();
}
if (nextTag != null && nextTag.isEnd("stream")) {
streamCountDownLatch.countDown();
}
}
private void processChallenge(final Element challenge) throws IOException {
final SaslMechanism.Version version;
try {
version = SaslMechanism.Version.of(challenge);
} catch (final IllegalArgumentException e) {
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
final Element response;
if (version == SaslMechanism.Version.SASL) {
response = new Element("response", Namespace.SASL);
} else if (version == SaslMechanism.Version.SASL_2) {
response = new Element("response", Namespace.SASL_2);
} else {
throw new AssertionError("Missing implementation for " + version);
}
final LoginInfo currentLoginInfo = this.loginInfo;
if (currentLoginInfo == null || LoginInfo.isSuccess(currentLoginInfo)) {
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
try {
response.setContent(
currentLoginInfo.saslMechanism.getResponse(
challenge.getContent(), sslSocketOrNull(socket)));
} catch (final SaslMechanism.AuthenticationException e) {
// TODO: Send auth abort tag.
Log.e(Config.LOGTAG, e.toString());
throw new StateChangingException(Account.State.UNAUTHORIZED);
}
tagWriter.writeElement(response);
}
private boolean processSuccess(final Element success)
throws IOException, XmlPullParserException {
final SaslMechanism.Version version;
try {
version = SaslMechanism.Version.of(success);
} catch (final IllegalArgumentException e) {
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
final LoginInfo currentLoginInfo = this.loginInfo;
final SaslMechanism currentSaslMechanism = LoginInfo.mechanism(currentLoginInfo);
if (currentLoginInfo == null || currentSaslMechanism == null) {
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
final String challenge;
if (version == SaslMechanism.Version.SASL) {
challenge = success.getContent();
} else if (version == SaslMechanism.Version.SASL_2) {
challenge = success.findChildContent("additional-data");
} else {
throw new AssertionError("Missing implementation for " + version);
}
try {
currentLoginInfo.success(challenge, sslSocketOrNull(socket));
} catch (final SaslMechanism.AuthenticationException e) {
Log.e(Config.LOGTAG, account.getJid().asBareJid() + ": authentication failure ", e);
throw new StateChangingException(Account.State.UNAUTHORIZED);
}
Log.d(
Config.LOGTAG,
account.getJid().asBareJid().toString() + ": logged in (using " + version + ")");
if (SaslMechanism.pin(currentSaslMechanism)) {
account.setPinnedMechanism(currentSaslMechanism);
}
if (version == SaslMechanism.Version.SASL_2) {
final String authorizationIdentifier =
success.findChildContent("authorization-identifier");
final Jid authorizationJid;
try {
authorizationJid =
Strings.isNullOrEmpty(authorizationIdentifier)
? null
: Jid.ofEscaped(authorizationIdentifier);
} catch (final IllegalArgumentException e) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": SASL 2.0 authorization identifier was not a valid jid");
throw new StateChangingException(Account.State.BIND_FAILURE);
}
if (authorizationJid == null) {
throw new StateChangingException(Account.State.BIND_FAILURE);
}
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": SASL 2.0 authorization identifier was "
+ authorizationJid);
if (!account.getJid().getDomain().equals(authorizationJid.getDomain())) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": server tried to re-assign domain to "
+ authorizationJid.getDomain());
throw new StateChangingError(Account.State.BIND_FAILURE);
}
if (authorizationJid.isFullJid() && account.setJid(authorizationJid)) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": jid changed during SASL 2.0. updating database");
}
final Element bound = success.findChild("bound", Namespace.BIND2);
final Element resumed = success.findChild("resumed", Namespace.STREAM_MANAGEMENT);
final Element failed = success.findChild("failed", Namespace.STREAM_MANAGEMENT);
final Element tokenWrapper = success.findChild("token", Namespace.FAST);
final String token = tokenWrapper == null ? null : tokenWrapper.getAttribute("token");
if (bound != null && resumed != null) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": server sent bound and resumed in SASL2 success");
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
if (resumed != null && streamId != null) {
if (this.boundStreamFeatures != null) {
this.streamFeatures = this.boundStreamFeatures;
Log.d(
Config.LOGTAG,
"putting previous stream features back in place: "
+ XmlHelper.printElementNames(this.boundStreamFeatures));
}
processResumed(resumed);
} else if (failed != null) {
processFailed(failed, false); // wait for new stream features
}
if (bound != null) {
clearIqCallbacks();
this.isBound = true;
processNopStreamFeatures();
this.boundStreamFeatures = this.streamFeatures;
final Element streamManagementEnabled =
bound.findChild("enabled", Namespace.STREAM_MANAGEMENT);
final Element carbonsEnabled = bound.findChild("enabled", Namespace.CARBONS);
final boolean waitForDisco;
if (streamManagementEnabled != null) {
resetOutboundStanzaQueue();
processEnabled(streamManagementEnabled);
waitForDisco = true;
} else {
// if we did not enable stream management in bind do it now
waitForDisco = enableStreamManagement();
}
final boolean negotiatedCarbons;
if (carbonsEnabled != null) {
negotiatedCarbons = true;
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": successfully enabled carbons (via Bind 2.0)");
features.carbonsEnabled = true;
} else if (loginInfo.inlineBindFeatures.contains(Namespace.CARBONS)) {
negotiatedCarbons = true;
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": successfully enabled carbons (via Bind 2.0/implicit)");
features.carbonsEnabled = true;
} else {
negotiatedCarbons = false;
}
sendPostBindInitialization(waitForDisco, negotiatedCarbons);
}
final HashedToken.Mechanism tokenMechanism;
if (SaslMechanism.hashedToken(currentSaslMechanism)) {
tokenMechanism = ((HashedToken) currentSaslMechanism).getTokenMechanism();
} else if (this.hashTokenRequest != null) {
tokenMechanism = this.hashTokenRequest;
} else {
tokenMechanism = null;
}
if (tokenMechanism != null && !Strings.isNullOrEmpty(token)) {
if (ChannelBinding.priority(tokenMechanism.channelBinding)
>= ChannelBindingMechanism.getPriority(currentSaslMechanism)) {
this.account.setFastToken(tokenMechanism, token);
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": storing hashed token "
+ tokenMechanism);
} else {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": not accepting hashed token "
+ tokenMechanism.name()
+ " for log in mechanism "
+ currentSaslMechanism.getMechanism());
this.account.resetFastToken();
}
} else if (this.hashTokenRequest != null) {
Log.w(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": no response to our hashed token request "
+ this.hashTokenRequest);
}
}
mXmppConnectionService.databaseBackend.updateAccount(account);
this.quickStartInProgress = false;
if (version == SaslMechanism.Version.SASL) {
tagReader.reset();
sendStartStream(false, true);
final Tag tag = tagReader.readTag();
if (tag != null && tag.isStart("stream", Namespace.STREAMS)) {
processStream();
return true;
} else {
throw new StateChangingException(Account.State.STREAM_OPENING_ERROR);
}
} else {
return false;
}
}
private void resetOutboundStanzaQueue() {
synchronized (this.mStanzaQueue) {
final List<AbstractAcknowledgeableStanza> intermediateStanzas = new ArrayList<>();
if (Config.EXTENDED_SM_LOGGING) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": stanzas sent before auth: "
+ this.stanzasSentBeforeAuthentication);
}
for (int i = this.stanzasSentBeforeAuthentication + 1; i <= this.stanzasSent; ++i) {
final AbstractAcknowledgeableStanza stanza = this.mStanzaQueue.get(i);
if (stanza != null) {
intermediateStanzas.add(stanza);
}
}
this.mStanzaQueue.clear();
for (int i = 0; i < intermediateStanzas.size(); ++i) {
this.mStanzaQueue.put(i, intermediateStanzas.get(i));
}
this.stanzasSent = intermediateStanzas.size();
if (Config.EXTENDED_SM_LOGGING) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": resetting outbound stanza queue to "
+ this.stanzasSent);
}
}
}
private void processNopStreamFeatures() throws IOException {
final Tag tag = tagReader.readTag();
if (tag != null && tag.isStart("features", Namespace.STREAMS)) {
this.streamFeatures = tagReader.readElement(tag);
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": processed NOP stream features after success: "
+ XmlHelper.printElementNames(this.streamFeatures));
} else {
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received " + tag);
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": server did not send stream features after SASL2 success");
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
}
private void processFailure(final Element failure) throws IOException {
final SaslMechanism.Version version;
try {
version = SaslMechanism.Version.of(failure);
} catch (final IllegalArgumentException e) {
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
Log.d(Config.LOGTAG, failure.toString());
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": login failure " + version);
if (SaslMechanism.hashedToken(LoginInfo.mechanism(this.loginInfo))) {
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": resetting token");
account.resetFastToken();
mXmppConnectionService.databaseBackend.updateAccount(account);
}
if (failure.hasChild("temporary-auth-failure")) {
throw new StateChangingException(Account.State.TEMPORARY_AUTH_FAILURE);
} else if (failure.hasChild("account-disabled")) {
final String text = failure.findChildContent("text");
if (Strings.isNullOrEmpty(text)) {
throw new StateChangingException(Account.State.UNAUTHORIZED);
}
final Matcher matcher = Patterns.AUTOLINK_WEB_URL.matcher(text);
if (matcher.find()) {
final HttpUrl url;
try {
url = HttpUrl.get(text.substring(matcher.start(), matcher.end()));
} catch (final IllegalArgumentException e) {
throw new StateChangingException(Account.State.UNAUTHORIZED);
}
if (url.isHttps()) {
this.redirectionUrl = url;
throw new StateChangingException(Account.State.PAYMENT_REQUIRED);
}
}
}
if (SaslMechanism.hashedToken(LoginInfo.mechanism(this.loginInfo))) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": fast authentication failed. falling back to regular authentication");
authenticate();
} else {
throw new StateChangingException(Account.State.UNAUTHORIZED);
}
}
private static SSLSocket sslSocketOrNull(final Socket socket) {
if (socket instanceof SSLSocket) {
return (SSLSocket) socket;
} else {
return null;
}
}
private void processEnabled(final Element enabled) {
final String id;
if (enabled.getAttributeAsBoolean("resume")) {
id = enabled.getAttribute("id");
} else {
id = null;
}
final String locationAttribute = enabled.getAttribute("location");
final Resolver.Result currentResolverResult = this.currentResolverResult;
final Resolver.Result location;
if (Strings.isNullOrEmpty(locationAttribute) || currentResolverResult == null) {
location = null;
} else {
location = currentResolverResult.seeOtherHost(locationAttribute);
}
final StreamId streamId = id == null ? null : new StreamId(id, location);
if (streamId == null) {
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": stream management enabled");
} else {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": stream management enabled. resume at: "
+ streamId.location);
}
this.streamId = streamId;
this.stanzasReceived = 0;
this.inSmacksSession = true;
final RequestPacket r = new RequestPacket();
tagWriter.writeStanzaAsync(r);
}
private void processResumed(final Element resumed) throws StateChangingException {
this.inSmacksSession = true;
this.isBound = true;
this.tagWriter.writeStanzaAsync(new RequestPacket());
lastPacketReceived = SystemClock.elapsedRealtime();
final Optional<Integer> h = resumed.getOptionalIntAttribute("h");
final int serverCount;
if (h.isPresent()) {
serverCount = h.get();
} else {
resetStreamId();
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
final ArrayList<AbstractAcknowledgeableStanza> failedStanzas = new ArrayList<>();
final boolean acknowledgedMessages;
synchronized (this.mStanzaQueue) {
if (serverCount < stanzasSent) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid() + ": session resumed with lost packages");
stanzasSent = serverCount;
} else {
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": session resumed");
}
acknowledgedMessages = acknowledgeStanzaUpTo(serverCount);
for (int i = 0; i < this.mStanzaQueue.size(); ++i) {
failedStanzas.add(mStanzaQueue.valueAt(i));
}
mStanzaQueue.clear();
}
if (acknowledgedMessages) {
mXmppConnectionService.updateConversationUi();
}
Log.d(
Config.LOGTAG,
account.getJid().asBareJid() + ": resending " + failedStanzas.size() + " stanzas");
for (final AbstractAcknowledgeableStanza packet : failedStanzas) {
if (packet instanceof MessagePacket message) {
mXmppConnectionService.markMessage(
account,
message.getTo().asBareJid(),
message.getId(),
Message.STATUS_UNSEND);
}
sendPacket(packet);
}
changeStatusToOnline();
}
private void changeStatusToOnline() {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid() + ": online with resource " + account.getResource());
changeStatus(Account.State.ONLINE);
}
private void processFailed(final Element failed, final boolean sendBindRequest) {
final Optional<Integer> serverCount = failed.getOptionalIntAttribute("h");
if (serverCount.isPresent()) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": resumption failed but server acknowledged stanza #"
+ serverCount.get());
final boolean acknowledgedMessages;
synchronized (this.mStanzaQueue) {
acknowledgedMessages = acknowledgeStanzaUpTo(serverCount.get());
}
if (acknowledgedMessages) {
mXmppConnectionService.updateConversationUi();
}
} else {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": resumption failed ("
+ XmlHelper.print(failed.getChildren())
+ ")");
}
resetStreamId();
if (sendBindRequest) {
sendBindRequest();
}
}
private boolean acknowledgeStanzaUpTo(final int serverCount) {
if (serverCount > stanzasSent) {
Log.e(
Config.LOGTAG,
"server acknowledged more stanzas than we sent. serverCount="
+ serverCount
+ ", ourCount="
+ stanzasSent);
}
boolean acknowledgedMessages = false;
for (int i = 0; i < mStanzaQueue.size(); ++i) {
if (serverCount >= mStanzaQueue.keyAt(i)) {
if (Config.EXTENDED_SM_LOGGING) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": server acknowledged stanza #"
+ mStanzaQueue.keyAt(i));
}
final AbstractAcknowledgeableStanza stanza = mStanzaQueue.valueAt(i);
if (stanza instanceof MessagePacket packet && acknowledgedListener != null) {
final String id = packet.getId();
final Jid to = packet.getTo();
if (id != null && to != null) {
acknowledgedMessages |=
acknowledgedListener.onMessageAcknowledged(account, to, id);
}
}
mStanzaQueue.removeAt(i);
i--;
}
}
return acknowledgedMessages;
}
private @NonNull Element processPacket(final Tag currentTag, final int packetType)
throws IOException {
final Element element =
switch (packetType) {
case PACKET_IQ -> new IqPacket();
case PACKET_MESSAGE -> new MessagePacket();
case PACKET_PRESENCE -> new PresencePacket();
default -> throw new AssertionError("Should never encounter invalid type");
};
element.setAttributes(currentTag.getAttributes());
Tag nextTag = tagReader.readTag();
if (nextTag == null) {
throw new IOException("interrupted mid tag");
}
while (!nextTag.isEnd(element.getName())) {
if (!nextTag.isNo()) {
element.addChild(tagReader.readElement(nextTag));
}
nextTag = tagReader.readTag();
if (nextTag == null) {
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");
}
if (inSmacksSession) {
++stanzasReceived;
} else if (features.sm()) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": not counting stanza("
+ element.getClass().getSimpleName()
+ "). Not in smacks session.");
}
lastPacketReceived = SystemClock.elapsedRealtime();
if (Config.BACKGROUND_STANZA_LOGGING && mXmppConnectionService.checkListeners()) {
Log.d(Config.LOGTAG, "[background stanza] " + element);
}
if (element instanceof IqPacket
&& (((IqPacket) element).getType() == IqPacket.TYPE.SET)
&& element.hasChild("jingle", Namespace.JINGLE)) {
return JinglePacket.upgrade((IqPacket) element);
} else {
return element;
}
}
private void processIq(final Tag currentTag) throws IOException {
final IqPacket packet = (IqPacket) processPacket(currentTag, PACKET_IQ);
if (!packet.valid()) {
Log.e(
Config.LOGTAG,
"encountered invalid iq from='"
+ packet.getFrom()
+ "' to='"
+ packet.getTo()
+ "'");
return;
}
if (Thread.currentThread().isInterrupted()) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid() + "Not processing iq. Thread was interrupted");
return;
}
if (packet instanceof JinglePacket jinglePacket && isBound) {
if (this.jingleListener != null) {
this.jingleListener.onJinglePacketReceived(account, jinglePacket);
}
} else {
final OnIqPacketReceived callback = getIqPacketReceivedCallback(packet);
if (callback == null) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid().toString()
+ ": no callback registered for IQ from "
+ packet.getFrom());
return;
}
try {
callback.onIqPacketReceived(account, packet);
} catch (final StateChangingError error) {
throw new StateChangingException(error.state);
}
}
}
private OnIqPacketReceived getIqPacketReceivedCallback(final IqPacket stanza)
throws StateChangingException {
final boolean isRequest =
stanza.getType() == IqPacket.TYPE.GET || stanza.getType() == IqPacket.TYPE.SET;
if (isRequest) {
if (isBound) {
return this.unregisteredIqListener;
} else {
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
} else {
synchronized (this.packetCallbacks) {
final var pair = packetCallbacks.get(stanza.getId());
if (pair == null) {
return null;
}
if (pair.first.toServer(account)) {
if (stanza.fromServer(account)) {
packetCallbacks.remove(stanza.getId());
return pair.second;
} else {
Log.e(
Config.LOGTAG,
account.getJid().asBareJid().toString()
+ ": ignoring spoofed iq packet");
}
} else {
if (stanza.getFrom() != null && stanza.getFrom().equals(pair.first.getTo())) {
packetCallbacks.remove(stanza.getId());
return pair.second;
} else {
Log.e(
Config.LOGTAG,
account.getJid().asBareJid().toString()
+ ": ignoring spoofed iq packet");
}
}
}
}
return null;
}
private void processMessage(final Tag currentTag) throws IOException {
final MessagePacket packet = (MessagePacket) processPacket(currentTag, PACKET_MESSAGE);
if (!packet.valid()) {
Log.e(
Config.LOGTAG,
"encountered invalid message from='"
+ packet.getFrom()
+ "' to='"
+ packet.getTo()
+ "'");
return;
}
if (Thread.currentThread().isInterrupted()) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ "Not processing message. Thread was interrupted");
return;
}
this.messageListener.onMessagePacketReceived(account, packet);
}
private void processPresence(final Tag currentTag) throws IOException {
final PresencePacket packet = (PresencePacket) processPacket(currentTag, PACKET_PRESENCE);
if (!packet.valid()) {
Log.e(
Config.LOGTAG,
"encountered invalid presence from='"
+ packet.getFrom()
+ "' to='"
+ packet.getTo()
+ "'");
return;
}
if (Thread.currentThread().isInterrupted()) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ "Not processing presence. Thread was interrupted");
return;
}
this.presenceListener.onPresencePacketReceived(account, packet);
}
private void sendStartTLS() throws IOException {
final Tag startTLS = Tag.empty("starttls");
startTLS.setAttribute("xmlns", Namespace.TLS);
tagWriter.writeTag(startTLS);
}
private void switchOverToTls() throws XmlPullParserException, IOException {
tagReader.readTag();
final Socket socket = this.socket;
final SSLSocket sslSocket = upgradeSocketToTls(socket);
this.socket = sslSocket;
this.tagReader.setInputStream(sslSocket.getInputStream());
this.tagWriter.setOutputStream(sslSocket.getOutputStream());
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": TLS connection established");
final boolean quickStart;
try {
quickStart = establishStream(SSLSockets.version(sslSocket));
} catch (final InterruptedException e) {
return;
}
if (quickStart) {
this.quickStartInProgress = true;
}
features.encryptionEnabled = true;
final Tag tag = tagReader.readTag();
if (tag != null && tag.isStart("stream", Namespace.STREAMS)) {
SSLSockets.log(account, sslSocket);
processStream();
} else {
throw new StateChangingException(Account.State.STREAM_OPENING_ERROR);
}
sslSocket.close();
}
private SSLSocket upgradeSocketToTls(final Socket socket) throws IOException {
final SSLSocketFactory sslSocketFactory;
try {
sslSocketFactory = getSSLSocketFactory();
} catch (final NoSuchAlgorithmException | KeyManagementException e) {
throw new StateChangingException(Account.State.TLS_ERROR);
}
final InetAddress address = socket.getInetAddress();
final SSLSocket sslSocket =
(SSLSocket)
sslSocketFactory.createSocket(
socket, address.getHostAddress(), socket.getPort(), true);
SSLSockets.setSecurity(sslSocket);
SSLSockets.setHostname(sslSocket, IDN.toASCII(account.getServer()));
SSLSockets.setApplicationProtocol(sslSocket, "xmpp-client");
final XmppDomainVerifier xmppDomainVerifier = new XmppDomainVerifier();
try {
if (!xmppDomainVerifier.verify(
account.getServer(), this.verifiedHostname, sslSocket.getSession())) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": TLS certificate domain verification failed");
FileBackend.close(sslSocket);
throw new StateChangingException(Account.State.TLS_ERROR_DOMAIN);
}
} catch (final SSLPeerUnverifiedException e) {
FileBackend.close(sslSocket);
throw new StateChangingException(Account.State.TLS_ERROR);
}
return sslSocket;
}
private void processStreamFeatures(final Tag currentTag) throws IOException {
this.streamFeatures = tagReader.readElement(currentTag);
final boolean isSecure = isSecure();
final boolean needsBinding = !isBound && !account.isOptionSet(Account.OPTION_REGISTER);
if (this.quickStartInProgress) {
if (this.streamFeatures.hasChild("authentication", Namespace.SASL_2)) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": quick start in progress. ignoring features: "
+ XmlHelper.printElementNames(this.streamFeatures));
if (SaslMechanism.hashedToken(LoginInfo.mechanism(this.loginInfo))) {
return;
}
if (isFastTokenAvailable(
this.streamFeatures.findChild("authentication", Namespace.SASL_2))) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": fast token available; resetting quick start");
account.setOption(Account.OPTION_QUICKSTART_AVAILABLE, false);
mXmppConnectionService.databaseBackend.updateAccount(account);
}
return;
}
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": server lost support for SASL 2. quick start not possible");
this.account.setOption(Account.OPTION_QUICKSTART_AVAILABLE, false);
mXmppConnectionService.databaseBackend.updateAccount(account);
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
if (this.streamFeatures.hasChild("starttls", Namespace.TLS)
&& !features.encryptionEnabled) {
sendStartTLS();
} else if (this.streamFeatures.hasChild("register", Namespace.REGISTER_STREAM_FEATURE)
&& account.isOptionSet(Account.OPTION_REGISTER)) {
if (isSecure) {
register();
} else {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": unable to find STARTTLS for registration process "
+ XmlHelper.printElementNames(this.streamFeatures));
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
} else if (!this.streamFeatures.hasChild("register", Namespace.REGISTER_STREAM_FEATURE)
&& account.isOptionSet(Account.OPTION_REGISTER)) {
throw new StateChangingException(Account.State.REGISTRATION_NOT_SUPPORTED);
} else if (this.streamFeatures.hasChild("authentication", Namespace.SASL_2)
&& shouldAuthenticate
&& isSecure) {
authenticate(SaslMechanism.Version.SASL_2);
} else if (this.streamFeatures.hasChild("mechanisms", Namespace.SASL)
&& shouldAuthenticate
&& isSecure) {
authenticate(SaslMechanism.Version.SASL);
} else if (this.streamFeatures.hasChild("sm", Namespace.STREAM_MANAGEMENT)
&& isSecure
&& LoginInfo.isSuccess(loginInfo)
&& streamId != null
&& !inSmacksSession) {
if (Config.EXTENDED_SM_LOGGING) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": resuming after stanza #"
+ stanzasReceived);
}
final ResumePacket resume = new ResumePacket(this.streamId.id, stanzasReceived);
this.mSmCatchupMessageCounter.set(0);
this.mWaitingForSmCatchup.set(true);
this.tagWriter.writeStanzaAsync(resume);
} else if (needsBinding) {
if (this.streamFeatures.hasChild("bind", Namespace.BIND)
&& isSecure
&& LoginInfo.isSuccess(loginInfo)) {
sendBindRequest();
} else {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": unable to find bind feature "
+ XmlHelper.printElementNames(this.streamFeatures));
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
} else {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": received NOP stream features: "
+ XmlHelper.printElementNames(this.streamFeatures));
}
}
private void authenticate() throws IOException {
final boolean isSecure = isSecure();
if (isSecure && this.streamFeatures.hasChild("authentication", Namespace.SASL_2)) {
authenticate(SaslMechanism.Version.SASL_2);
} else if (isSecure && this.streamFeatures.hasChild("mechanisms", Namespace.SASL)) {
authenticate(SaslMechanism.Version.SASL);
} else {
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
}
private boolean isSecure() {
return features.encryptionEnabled || Config.ALLOW_NON_TLS_CONNECTIONS || account.isOnion();
}
private void authenticate(final SaslMechanism.Version version) throws IOException {
final Element authElement;
if (version == SaslMechanism.Version.SASL) {
authElement = this.streamFeatures.findChild("mechanisms", Namespace.SASL);
} else {
authElement = this.streamFeatures.findChild("authentication", Namespace.SASL_2);
}
final Collection<String> mechanisms = SaslMechanism.mechanisms(authElement);
final Element cbElement =
this.streamFeatures.findChild("sasl-channel-binding", Namespace.CHANNEL_BINDING);
final Collection<ChannelBinding> channelBindings = ChannelBinding.of(cbElement);
final SaslMechanism.Factory factory = new SaslMechanism.Factory(account);
final SaslMechanism saslMechanism =
factory.of(mechanisms, channelBindings, version, SSLSockets.version(this.socket));
this.validate(saslMechanism, mechanisms);
final boolean quickStartAvailable;
final String firstMessage =
saslMechanism.getClientFirstMessage(sslSocketOrNull(this.socket));
final boolean usingFast = SaslMechanism.hashedToken(saslMechanism);
final Element authenticate;
if (version == SaslMechanism.Version.SASL) {
authenticate = new Element("auth", Namespace.SASL);
if (!Strings.isNullOrEmpty(firstMessage)) {
authenticate.setContent(firstMessage);
}
quickStartAvailable = false;
this.loginInfo = new LoginInfo(saslMechanism, version, Collections.emptyList());
} else if (version == SaslMechanism.Version.SASL_2) {
final Element inline = authElement.findChild("inline", Namespace.SASL_2);
final boolean sm = inline != null && inline.hasChild("sm", Namespace.STREAM_MANAGEMENT);
final HashedToken.Mechanism hashTokenRequest;
if (usingFast) {
hashTokenRequest = null;
} else {
final Element fast =
inline == null ? null : inline.findChild("fast", Namespace.FAST);
final Collection<String> fastMechanisms = SaslMechanism.mechanisms(fast);
hashTokenRequest =
HashedToken.Mechanism.best(fastMechanisms, SSLSockets.version(this.socket));
}
final Collection<String> bindFeatures = Bind2.features(inline);
quickStartAvailable =
sm
&& bindFeatures != null
&& bindFeatures.containsAll(Bind2.QUICKSTART_FEATURES);
if (bindFeatures != null) {
try {
mXmppConnectionService.restoredFromDatabaseLatch.await();
} catch (final InterruptedException e) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": interrupted while waiting for DB restore during SASL2 bind");
return;
}
}
this.loginInfo = new LoginInfo(saslMechanism, version, bindFeatures);
this.hashTokenRequest = hashTokenRequest;
authenticate =
generateAuthenticationRequest(
firstMessage, usingFast, hashTokenRequest, bindFeatures, sm);
} else {
throw new AssertionError("Missing implementation for " + version);
}
if (account.setOption(Account.OPTION_QUICKSTART_AVAILABLE, quickStartAvailable)) {
mXmppConnectionService.databaseBackend.updateAccount(account);
}
Log.d(
Config.LOGTAG,
account.getJid().toString()
+ ": Authenticating with "
+ version
+ "/"
+ LoginInfo.mechanism(this.loginInfo).getMechanism());
authenticate.setAttribute("mechanism", LoginInfo.mechanism(this.loginInfo).getMechanism());
synchronized (this.mStanzaQueue) {
this.stanzasSentBeforeAuthentication = this.stanzasSent;
tagWriter.writeElement(authenticate);
}
}
private static boolean isFastTokenAvailable(final Element authentication) {
final Element inline = authentication == null ? null : authentication.findChild("inline");
return inline != null && inline.hasChild("fast", Namespace.FAST);
}
private void validate(
final @Nullable SaslMechanism saslMechanism, Collection<String> mechanisms)
throws StateChangingException {
if (saslMechanism == null) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": unable to find supported SASL mechanism in "
+ mechanisms);
throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
}
if (SaslMechanism.hashedToken(saslMechanism)) {
return;
}
final int pinnedMechanism = account.getPinnedMechanismPriority();
if (pinnedMechanism > saslMechanism.getPriority()) {
Log.e(
Config.LOGTAG,
"Auth failed. Authentication mechanism "
+ saslMechanism.getMechanism()
+ " has lower priority ("
+ saslMechanism.getPriority()
+ ") than pinned priority ("
+ pinnedMechanism
+ "). Possible downgrade attack?");
throw new StateChangingException(Account.State.DOWNGRADE_ATTACK);
}
}
private Element generateAuthenticationRequest(
final String firstMessage, final boolean usingFast) {
return generateAuthenticationRequest(
firstMessage, usingFast, null, Bind2.QUICKSTART_FEATURES, true);
}
private Element generateAuthenticationRequest(
final String firstMessage,
final boolean usingFast,
final HashedToken.Mechanism hashedTokenRequest,
final Collection<String> bind,
final boolean inlineStreamManagement) {
final Element authenticate = new Element("authenticate", Namespace.SASL_2);
if (!Strings.isNullOrEmpty(firstMessage)) {
authenticate.addChild("initial-response").setContent(firstMessage);
}
final Element userAgent = authenticate.addChild("user-agent");
userAgent.setAttribute("id", AccountUtils.publicDeviceId(account));
userAgent
.addChild("software")
.setContent(mXmppConnectionService.getString(R.string.app_name));
if (!PhoneHelper.isEmulator()) {
userAgent
.addChild("device")
.setContent(String.format("%s %s", Build.MANUFACTURER, Build.MODEL));
}
// do not include bind if 'inlineStreamManagement' is missing and we have a streamId
// (because we would rather just do a normal SM/resume)
final boolean mayAttemptBind = streamId == null || inlineStreamManagement;
if (bind != null && mayAttemptBind) {
authenticate.addChild(generateBindRequest(bind));
}
if (inlineStreamManagement && streamId != null) {
final ResumePacket resume = new ResumePacket(this.streamId.id, stanzasReceived);
this.mSmCatchupMessageCounter.set(0);
this.mWaitingForSmCatchup.set(true);
authenticate.addChild(resume);
}
if (hashedTokenRequest != null) {
authenticate
.addChild("request-token", Namespace.FAST)
.setAttribute("mechanism", hashedTokenRequest.name());
}
if (usingFast) {
authenticate.addChild("fast", Namespace.FAST);
}
return authenticate;
}
private Element generateBindRequest(final Collection<String> bindFeatures) {
Log.d(Config.LOGTAG, "inline bind features: " + bindFeatures);
final Element bind = new Element("bind", Namespace.BIND2);
bind.addChild("tag").setContent(mXmppConnectionService.getString(R.string.app_name));
if (bindFeatures.contains(Namespace.CARBONS)) {
bind.addChild("enable", Namespace.CARBONS);
}
if (bindFeatures.contains(Namespace.STREAM_MANAGEMENT)) {
bind.addChild(new EnablePacket());
}
return bind;
}
private void register() {
final String preAuth = account.getKey(Account.KEY_PRE_AUTH_REGISTRATION_TOKEN);
if (preAuth != null && features.invite()) {
final IqPacket preAuthRequest = new IqPacket(IqPacket.TYPE.SET);
preAuthRequest.addChild("preauth", Namespace.PARS).setAttribute("token", preAuth);
sendUnmodifiedIqPacket(
preAuthRequest,
(account, response) -> {
if (response.getType() == IqPacket.TYPE.RESULT) {
sendRegistryRequest();
} else {
final String error = response.getErrorCondition();
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": failed to pre auth. "
+ error);
throw new StateChangingError(Account.State.REGISTRATION_INVALID_TOKEN);
}
},
true);
} else {
sendRegistryRequest();
}
}
private void sendRegistryRequest() {
final IqPacket register = new IqPacket(IqPacket.TYPE.GET);
register.query(Namespace.REGISTER);
register.setTo(account.getDomain());
sendUnmodifiedIqPacket(
register,
(account, packet) -> {
if (packet.getType() == IqPacket.TYPE.TIMEOUT) {
return;
}
if (packet.getType() == IqPacket.TYPE.ERROR) {
throw new StateChangingError(Account.State.REGISTRATION_FAILED);
}
final Element query = packet.query(Namespace.REGISTER);
if (query.hasChild("username") && (query.hasChild("password"))) {
final IqPacket register1 = new IqPacket(IqPacket.TYPE.SET);
final Element username =
new Element("username").setContent(account.getUsername());
final Element password =
new Element("password").setContent(account.getPassword());
register1.query(Namespace.REGISTER).addChild(username);
register1.query().addChild(password);
register1.setFrom(account.getJid().asBareJid());
sendUnmodifiedIqPacket(register1, registrationResponseListener, true);
} else if (query.hasChild("x", Namespace.DATA)) {
final Data data = Data.parse(query.findChild("x", Namespace.DATA));
final Element blob = query.findChild("data", "urn:xmpp:bob");
final String id = packet.getId();
InputStream is;
if (blob != null) {
try {
final String base64Blob = blob.getContent();
final byte[] strBlob = Base64.decode(base64Blob, Base64.DEFAULT);
is = new ByteArrayInputStream(strBlob);
} catch (Exception e) {
is = null;
}
} else {
final boolean useTor =
mXmppConnectionService.useTorToConnect() || account.isOnion();
try {
final String url = data.getValue("url");
final String fallbackUrl = data.getValue("captcha-fallback-url");
if (url != null) {
is = HttpConnectionManager.open(url, useTor);
} else if (fallbackUrl != null) {
is = HttpConnectionManager.open(fallbackUrl, useTor);
} else {
is = null;
}
} catch (final IOException e) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid() + ": unable to fetch captcha",
e);
is = null;
}
}
if (is != null) {
Bitmap captcha = BitmapFactory.decodeStream(is);
try {
if (mXmppConnectionService.displayCaptchaRequest(
account, id, data, captcha)) {
return;
}
} catch (Exception e) {
throw new StateChangingError(Account.State.REGISTRATION_FAILED);
}
}
throw new StateChangingError(Account.State.REGISTRATION_FAILED);
} else if (query.hasChild("instructions")
|| query.hasChild("x", Namespace.OOB)) {
final String instructions = query.findChildContent("instructions");
final Element oob = query.findChild("x", Namespace.OOB);
final String url = oob == null ? null : oob.findChildContent("url");
if (url != null) {
setAccountCreationFailed(url);
} else if (instructions != null) {
final Matcher matcher = Patterns.AUTOLINK_WEB_URL.matcher(instructions);
if (matcher.find()) {
setAccountCreationFailed(
instructions.substring(matcher.start(), matcher.end()));
}
}
throw new StateChangingError(Account.State.REGISTRATION_FAILED);
}
},
true);
}
private void setAccountCreationFailed(final String url) {
final HttpUrl httpUrl = url == null ? null : HttpUrl.parse(url);
if (httpUrl != null && httpUrl.isHttps()) {
this.redirectionUrl = httpUrl;
throw new StateChangingError(Account.State.REGISTRATION_WEB);
}
throw new StateChangingError(Account.State.REGISTRATION_FAILED);
}
public HttpUrl getRedirectionUrl() {
return this.redirectionUrl;
}
public void resetEverything() {
resetAttemptCount(true);
resetStreamId();
clearIqCallbacks();
synchronized (this.mStanzaQueue) {
this.stanzasSent = 0;
this.mStanzaQueue.clear();
}
this.redirectionUrl = null;
synchronized (this.disco) {
disco.clear();
}
synchronized (this.commands) {
this.commands.clear();
}
this.loginInfo = null;
}
private void sendBindRequest() {
try {
mXmppConnectionService.restoredFromDatabaseLatch.await();
} catch (InterruptedException e) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": interrupted while waiting for DB restore during bind");
return;
}
clearIqCallbacks();
if (account.getJid().isBareJid()) {
account.setResource(this.createNewResource());
} else {
fixResource(mXmppConnectionService, account);
}
final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
final String resource =
Config.USE_RANDOM_RESOURCE_ON_EVERY_BIND ? nextRandomId() : account.getResource();
iq.addChild("bind", Namespace.BIND).addChild("resource").setContent(resource);
this.sendUnmodifiedIqPacket(
iq,
(account, packet) -> {
if (packet.getType() == IqPacket.TYPE.TIMEOUT) {
return;
}
final Element bind = packet.findChild("bind");
if (bind != null && packet.getType() == IqPacket.TYPE.RESULT) {
isBound = true;
final Element jid = bind.findChild("jid");
if (jid != null && jid.getContent() != null) {
try {
Jid assignedJid = Jid.ofEscaped(jid.getContent());
if (!account.getJid().getDomain().equals(assignedJid.getDomain())) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": server tried to re-assign domain to "
+ assignedJid.getDomain());
throw new StateChangingError(Account.State.BIND_FAILURE);
}
if (account.setJid(assignedJid)) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": jid changed during bind. updating database");
mXmppConnectionService.databaseBackend.updateAccount(account);
}
if (streamFeatures.hasChild("session")
&& !streamFeatures
.findChild("session")
.hasChild("optional")) {
sendStartSession();
} else {
final boolean waitForDisco = enableStreamManagement();
sendPostBindInitialization(waitForDisco, false);
}
return;
} catch (final IllegalArgumentException e) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": server reported invalid jid ("
+ jid.getContent()
+ ") on bind");
}
} else {
Log.d(
Config.LOGTAG,
account.getJid()
+ ": disconnecting because of bind failure. (no jid)");
}
} else {
Log.d(
Config.LOGTAG,
account.getJid()
+ ": disconnecting because of bind failure ("
+ packet);
}
final Element error = packet.findChild("error");
if (packet.getType() == IqPacket.TYPE.ERROR
&& error != null
&& error.hasChild("conflict")) {
account.setResource(createNewResource());
}
throw new StateChangingError(Account.State.BIND_FAILURE);
},
true);
}
private void clearIqCallbacks() {
final IqPacket failurePacket = new IqPacket(IqPacket.TYPE.TIMEOUT);
final ArrayList<OnIqPacketReceived> callbacks = new ArrayList<>();
synchronized (this.packetCallbacks) {
if (this.packetCallbacks.size() == 0) {
return;
}
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": clearing "
+ this.packetCallbacks.size()
+ " iq callbacks");
final Iterator<Pair<IqPacket, OnIqPacketReceived>> iterator =
this.packetCallbacks.values().iterator();
while (iterator.hasNext()) {
Pair<IqPacket, OnIqPacketReceived> entry = iterator.next();
callbacks.add(entry.second);
iterator.remove();
}
}
for (OnIqPacketReceived callback : callbacks) {
try {
callback.onIqPacketReceived(account, failurePacket);
} catch (StateChangingError error) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": caught StateChangingError("
+ error.state.toString()
+ ") while clearing callbacks");
// ignore
}
}
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": done clearing iq callbacks. "
+ this.packetCallbacks.size()
+ " left");
}
public void sendDiscoTimeout() {
if (mWaitForDisco.compareAndSet(true, false)) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid() + ": finalizing bind after disco timeout");
finalizeBind();
}
}
private void sendStartSession() {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid() + ": sending legacy session to outdated server");
final IqPacket startSession = new IqPacket(IqPacket.TYPE.SET);
startSession.addChild("session", "urn:ietf:params:xml:ns:xmpp-session");
this.sendUnmodifiedIqPacket(
startSession,
(account, packet) -> {
if (packet.getType() == IqPacket.TYPE.RESULT) {
final boolean waitForDisco = enableStreamManagement();
sendPostBindInitialization(waitForDisco, false);
} else if (packet.getType() != IqPacket.TYPE.TIMEOUT) {
throw new StateChangingError(Account.State.SESSION_FAILURE);
}
},
true);
}
private boolean enableStreamManagement() {
final boolean streamManagement =
this.streamFeatures.hasChild("sm", Namespace.STREAM_MANAGEMENT);
if (streamManagement) {
synchronized (this.mStanzaQueue) {
final EnablePacket enable = new EnablePacket();
tagWriter.writeStanzaAsync(enable);
stanzasSent = 0;
mStanzaQueue.clear();
}
return true;
} else {
return false;
}
}
private void sendPostBindInitialization(
final boolean waitForDisco, final boolean carbonsEnabled) {
features.carbonsEnabled = carbonsEnabled;
features.blockListRequested = false;
synchronized (this.disco) {
this.disco.clear();
}
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": starting service discovery");
mPendingServiceDiscoveries.set(0);
mWaitForDisco.set(waitForDisco);
lastDiscoStarted = SystemClock.elapsedRealtime();
mXmppConnectionService.scheduleWakeUpCall(
Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
final 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));
}
final boolean requestDiscoItemsFirst =
!account.isOptionSet(Account.OPTION_LOGGED_IN_SUCCESSFULLY);
if (requestDiscoItemsFirst) {
sendServiceDiscoveryItems(account.getDomain());
}
if (discoveryResult == null) {
sendServiceDiscoveryInfo(account.getDomain());
} else {
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": server caps came from cache");
disco.put(account.getDomain(), discoveryResult);
}
discoverMamPreferences();
sendServiceDiscoveryInfo(account.getJid().asBareJid());
if (!requestDiscoItemsFirst) {
sendServiceDiscoveryItems(account.getDomain());
}
if (!mWaitForDisco.get()) {
finalizeBind();
}
this.lastSessionStarted = SystemClock.elapsedRealtime();
}
private void sendServiceDiscoveryInfo(final Jid jid) {
mPendingServiceDiscoveries.incrementAndGet();
final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
iq.setTo(jid);
iq.query("http://jabber.org/protocol/disco#info");
this.sendIqPacket(
iq,
(account, packet) -> {
if (packet.getType() == IqPacket.TYPE.RESULT) {
boolean advancedStreamFeaturesLoaded;
synchronized (XmppConnection.this.disco) {
ServiceDiscoveryResult result = new ServiceDiscoveryResult(packet);
if (jid.equals(account.getDomain())) {
mXmppConnectionService.databaseBackend.insertDiscoveryResult(
result);
}
disco.put(jid, result);
advancedStreamFeaturesLoaded =
disco.containsKey(account.getDomain())
&& disco.containsKey(account.getJid().asBareJid());
}
if (advancedStreamFeaturesLoaded
&& (jid.equals(account.getDomain())
|| jid.equals(account.getJid().asBareJid()))) {
enableAdvancedStreamFeatures();
}
} else if (packet.getType() == IqPacket.TYPE.ERROR) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": could not query disco info for "
+ jid.toString());
final boolean serverOrAccount =
jid.equals(account.getDomain())
|| jid.equals(account.getJid().asBareJid());
final boolean advancedStreamFeaturesLoaded;
if (serverOrAccount) {
synchronized (XmppConnection.this.disco) {
disco.put(jid, ServiceDiscoveryResult.empty());
advancedStreamFeaturesLoaded =
disco.containsKey(account.getDomain())
&& disco.containsKey(account.getJid().asBareJid());
}
} else {
advancedStreamFeaturesLoaded = false;
}
if (advancedStreamFeaturesLoaded) {
enableAdvancedStreamFeatures();
}
}
if (packet.getType() != IqPacket.TYPE.TIMEOUT) {
if (mPendingServiceDiscoveries.decrementAndGet() == 0
&& mWaitForDisco.compareAndSet(true, false)) {
finalizeBind();
}
}
});
}
private void discoverMamPreferences() {
IqPacket request = new IqPacket(IqPacket.TYPE.GET);
request.addChild("prefs", MessageArchiveService.Version.MAM_2.namespace);
sendIqPacket(
request,
(account, response) -> {
if (response.getType() == IqPacket.TYPE.RESULT) {
Element prefs =
response.findChild(
"prefs", MessageArchiveService.Version.MAM_2.namespace);
isMamPreferenceAlways =
"always"
.equals(
prefs == null
? null
: prefs.getAttribute("default"));
}
});
}
private void discoverCommands() {
final IqPacket request = new IqPacket(IqPacket.TYPE.GET);
request.setTo(account.getDomain());
request.addChild("query", Namespace.DISCO_ITEMS).setAttribute("node", Namespace.COMMANDS);
sendIqPacket(
request,
(account, response) -> {
if (response.getType() == IqPacket.TYPE.RESULT) {
final Element query = response.findChild("query", Namespace.DISCO_ITEMS);
if (query == null) {
return;
}
final HashMap<String, Jid> commands = new HashMap<>();
for (final Element child : query.getChildren()) {
if ("item".equals(child.getName())) {
final String node = child.getAttribute("node");
final Jid jid = child.getAttributeAsJid("jid");
if (node != null && jid != null) {
commands.put(node, jid);
}
}
}
synchronized (this.commands) {
this.commands.clear();
this.commands.putAll(commands);
}
}
});
}
public boolean isMamPreferenceAlways() {
return isMamPreferenceAlways;
}
private void finalizeBind() {
this.offlineMessagesRetrieved = false;
if (bindListener != null) {
bindListener.onBind(account);
}
changeStatusToOnline();
}
private void enableAdvancedStreamFeatures() {
if (getFeatures().blocking() && !features.blockListRequested) {
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": Requesting block list");
this.sendIqPacket(
getIqGenerator().generateGetBlockList(), mXmppConnectionService.getIqParser());
}
for (final OnAdvancedStreamFeaturesLoaded listener :
advancedStreamFeaturesLoadedListeners) {
listener.onAdvancedStreamFeaturesAvailable(account);
}
if (getFeatures().carbons() && !features.carbonsEnabled) {
sendEnableCarbons();
}
if (getFeatures().commands()) {
discoverCommands();
}
}
private void sendServiceDiscoveryItems(final Jid server) {
mPendingServiceDiscoveries.incrementAndGet();
final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
iq.setTo(server.getDomain());
iq.query("http://jabber.org/protocol/disco#items");
this.sendIqPacket(
iq,
(account, packet) -> {
if (packet.getType() == IqPacket.TYPE.RESULT) {
final HashSet<Jid> items = new HashSet<>();
final List<Element> elements = packet.query().getChildren();
for (final Element element : elements) {
if (element.getName().equals("item")) {
final Jid jid =
InvalidJid.getNullForInvalid(
element.getAttributeAsJid("jid"));
if (jid != null && !jid.equals(account.getDomain())) {
items.add(jid);
}
}
}
for (Jid jid : items) {
sendServiceDiscoveryInfo(jid);
}
} else {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": could not query disco items of "
+ server);
}
if (packet.getType() != IqPacket.TYPE.TIMEOUT) {
if (mPendingServiceDiscoveries.decrementAndGet() == 0
&& mWaitForDisco.compareAndSet(true, false)) {
finalizeBind();
}
}
});
}
private void sendEnableCarbons() {
final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
iq.addChild("enable", Namespace.CARBONS);
this.sendIqPacket(
iq,
(account, packet) -> {
if (packet.getType() == IqPacket.TYPE.RESULT) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid() + ": successfully enabled carbons");
features.carbonsEnabled = true;
} else {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": could not enable carbons "
+ packet);
}
});
}
private void processStreamError(final Tag currentTag) throws IOException {
final Element streamError = tagReader.readElement(currentTag);
if (streamError == null) {
return;
}
if (streamError.hasChild("conflict")) {
account.setResource(createNewResource());
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": switching resource due to conflict ("
+ account.getResource()
+ ")");
throw new IOException();
} else if (streamError.hasChild("host-unknown")) {
throw new StateChangingException(Account.State.HOST_UNKNOWN);
} else if (streamError.hasChild("policy-violation")) {
this.lastConnect = SystemClock.elapsedRealtime();
final String text = streamError.findChildContent("text");
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": policy violation. " + text);
failPendingMessages(text);
throw new StateChangingException(Account.State.POLICY_VIOLATION);
} else if (streamError.hasChild("see-other-host")) {
final String seeOtherHost = streamError.findChildContent("see-other-host");
final Resolver.Result currentResolverResult = this.currentResolverResult;
if (Strings.isNullOrEmpty(seeOtherHost) || currentResolverResult == null) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid() + ": stream error " + streamError);
throw new StateChangingException(Account.State.STREAM_ERROR);
}
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": see other host: "
+ seeOtherHost
+ " "
+ currentResolverResult);
final Resolver.Result seeOtherResult = currentResolverResult.seeOtherHost(seeOtherHost);
if (seeOtherResult != null) {
this.seeOtherHostResolverResult = seeOtherResult;
throw new StateChangingException(Account.State.SEE_OTHER_HOST);
} else {
throw new StateChangingException(Account.State.STREAM_ERROR);
}
} else {
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": stream error " + streamError);
throw new StateChangingException(Account.State.STREAM_ERROR);
}
}
private void failPendingMessages(final String error) {
synchronized (this.mStanzaQueue) {
for (int i = 0; i < mStanzaQueue.size(); ++i) {
final AbstractAcknowledgeableStanza stanza = mStanzaQueue.valueAt(i);
if (stanza instanceof MessagePacket packet) {
final String id = packet.getId();
final Jid to = packet.getTo();
mXmppConnectionService.markMessage(
account, to.asBareJid(), id, Message.STATUS_SEND_FAILED, error);
}
}
}
}
private boolean establishStream(final SSLSockets.Version sslVersion)
throws IOException, InterruptedException {
final boolean secureConnection = sslVersion != SSLSockets.Version.NONE;
final SaslMechanism quickStartMechanism;
if (secureConnection) {
quickStartMechanism =
SaslMechanism.ensureAvailable(account.getQuickStartMechanism(), sslVersion);
} else {
quickStartMechanism = null;
}
if (secureConnection
&& Config.QUICKSTART_ENABLED
&& quickStartMechanism != null
&& account.isOptionSet(Account.OPTION_QUICKSTART_AVAILABLE)) {
mXmppConnectionService.restoredFromDatabaseLatch.await();
this.loginInfo =
new LoginInfo(
quickStartMechanism,
SaslMechanism.Version.SASL_2,
Bind2.QUICKSTART_FEATURES);
final boolean usingFast = quickStartMechanism instanceof HashedToken;
final Element authenticate =
generateAuthenticationRequest(
quickStartMechanism.getClientFirstMessage(sslSocketOrNull(this.socket)),
usingFast);
authenticate.setAttribute("mechanism", quickStartMechanism.getMechanism());
sendStartStream(true, false);
synchronized (this.mStanzaQueue) {
this.stanzasSentBeforeAuthentication = this.stanzasSent;
tagWriter.writeElement(authenticate);
}
Log.d(
Config.LOGTAG,
account.getJid().toString()
+ ": quick start with "
+ quickStartMechanism.getMechanism());
return true;
} else {
sendStartStream(secureConnection, true);
return false;
}
}
private void sendStartStream(final boolean from, final boolean flush) throws IOException {
final Tag stream = Tag.start("stream:stream");
stream.setAttribute("to", account.getServer());
if (from) {
stream.setAttribute("from", account.getJid().asBareJid().toEscapedString());
}
stream.setAttribute("version", "1.0");
stream.setAttribute("xml:lang", LocalizedContent.STREAM_LANGUAGE);
stream.setAttribute("xmlns", Namespace.JABBER_CLIENT);
stream.setAttribute("xmlns:stream", Namespace.STREAMS);
tagWriter.writeTag(stream, flush);
}
private String createNewResource() {
return mXmppConnectionService.getString(R.string.app_name) + '.' + nextRandomId(true);
}
private String nextRandomId() {
return nextRandomId(false);
}
private String nextRandomId(final boolean s) {
return CryptoHelper.random(s ? 3 : 9);
}
public String sendIqPacket(final IqPacket packet, final OnIqPacketReceived callback) {
packet.setFrom(account.getJid());
return this.sendUnmodifiedIqPacket(packet, callback, false);
}
public synchronized String sendUnmodifiedIqPacket(
final IqPacket packet, final OnIqPacketReceived callback, boolean force) {
if (packet.getId() == null) {
packet.setAttribute("id", nextRandomId());
}
if (callback != null) {
synchronized (this.packetCallbacks) {
packetCallbacks.put(packet.getId(), new Pair<>(packet, callback));
}
}
this.sendPacket(packet, force);
return packet.getId();
}
public void sendMessagePacket(final MessagePacket packet) {
this.sendPacket(packet);
}
public void sendPresencePacket(final PresencePacket packet) {
this.sendPacket(packet);
}
private synchronized void sendPacket(final AbstractStanza packet) {
sendPacket(packet, false);
}
private synchronized void sendPacket(final AbstractStanza packet, final boolean force) {
if (stanzasSent == Integer.MAX_VALUE) {
resetStreamId();
disconnect(true);
return;
}
synchronized (this.mStanzaQueue) {
if (force || isBound) {
tagWriter.writeStanzaAsync(packet);
} else {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ " do not write stanza to unbound stream "
+ packet.toString());
}
if (packet instanceof AbstractAcknowledgeableStanza stanza) {
if (this.mStanzaQueue.size() != 0) {
int currentHighestKey = this.mStanzaQueue.keyAt(this.mStanzaQueue.size() - 1);
if (currentHighestKey != stanzasSent) {
throw new AssertionError("Stanza count messed up");
}
}
++stanzasSent;
if (Config.EXTENDED_SM_LOGGING) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": counting outbound "
+ packet.getName()
+ " as #"
+ stanzasSent);
}
this.mStanzaQueue.append(stanzasSent, stanza);
if (stanza instanceof MessagePacket && stanza.getId() != null && inSmacksSession) {
if (Config.EXTENDED_SM_LOGGING) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": requesting ack for message stanza #"
+ stanzasSent);
}
tagWriter.writeStanzaAsync(new RequestPacket());
}
}
}
}
public void sendPing() {
if (!r()) {
final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
iq.setFrom(account.getJid());
iq.addChild("ping", Namespace.PING);
this.sendIqPacket(iq, null);
}
this.lastPingSent = SystemClock.elapsedRealtime();
}
public void setOnMessagePacketReceivedListener(final OnMessagePacketReceived listener) {
this.messageListener = listener;
}
public void setOnUnregisteredIqPacketReceivedListener(final OnIqPacketReceived listener) {
this.unregisteredIqListener = listener;
}
public void setOnPresencePacketReceivedListener(final OnPresencePacketReceived listener) {
this.presenceListener = listener;
}
public void setOnJinglePacketReceivedListener(final OnJinglePacketReceived listener) {
this.jingleListener = listener;
}
public void setOnStatusChangedListener(final OnStatusChanged listener) {
this.statusListener = listener;
}
public void setOnBindListener(final OnBindListener listener) {
this.bindListener = listener;
}
public void setOnMessageAcknowledgeListener(final OnMessageAcknowledged listener) {
this.acknowledgedListener = listener;
}
public void addOnAdvancedStreamFeaturesAvailableListener(
final OnAdvancedStreamFeaturesLoaded listener) {
this.advancedStreamFeaturesLoadedListeners.add(listener);
}
private void forceCloseSocket() {
FileBackend.close(this.socket);
FileBackend.close(this.tagReader);
}
public void interrupt() {
if (this.mThread != null) {
this.mThread.interrupt();
}
}
public void disconnect(final boolean force) {
interrupt();
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": disconnecting force=" + force);
if (force) {
forceCloseSocket();
} else {
final TagWriter currentTagWriter = this.tagWriter;
if (currentTagWriter.isActive()) {
currentTagWriter.finish();
final Socket currentSocket = this.socket;
final CountDownLatch streamCountDownLatch = this.mStreamCountDownLatch;
try {
currentTagWriter.await(1, TimeUnit.SECONDS);
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": closing stream");
currentTagWriter.writeTag(Tag.end("stream:stream"));
if (streamCountDownLatch != null) {
if (streamCountDownLatch.await(1, TimeUnit.SECONDS)) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid() + ": remote ended stream");
} else {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": remote has not closed socket. force closing");
}
}
} catch (InterruptedException e) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": interrupted while gracefully closing stream");
} catch (final IOException e) {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": io exception during disconnect ("
+ e.getMessage()
+ ")");
} finally {
FileBackend.close(currentSocket);
}
} else {
forceCloseSocket();
}
}
}
private void resetStreamId() {
this.streamId = null;
this.boundStreamFeatures = null;
}
private List<Entry<Jid, ServiceDiscoveryResult>> findDiscoItemsByFeature(final String feature) {
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);
}
}
return items;
}
}
public Jid findDiscoItemByFeature(final String feature) {
final List<Entry<Jid, ServiceDiscoveryResult>> items = findDiscoItemsByFeature(feature);
if (items.size() >= 1) {
return items.get(0).getKey();
}
return null;
}
public boolean r() {
if (getFeatures().sm()) {
this.tagWriter.writeStanzaAsync(new RequestPacket());
return true;
} else {
return false;
}
}
public List<String> getMucServersWithholdAccount() {
final List<String> servers = getMucServers();
servers.remove(account.getDomain().toEscapedString());
return servers;
}
public List<String> getMucServers() {
List<String> servers = new ArrayList<>();
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.hasIdentity("conference", "text")
&& !value.getFeatures().contains("jabber:iq:gateway")
&& !value.hasIdentity("conference", "irc")) {
servers.add(cursor.getKey().toString());
}
}
}
return servers;
}
public String getMucServer() {
List<String> servers = getMucServers();
return servers.size() > 0 ? servers.get(0) : null;
}
public int getTimeToNextAttempt(final boolean aggressive) {
final int interval;
if (aggressive) {
interval = Math.min((int) (3 * Math.pow(1.3, attempt)), 60);
} else {
final int additionalTime =
account.getLastErrorStatus() == Account.State.POLICY_VIOLATION ? 3 : 0;
interval = Math.min((int) (25 * Math.pow(1.3, (additionalTime + attempt))), 300);
}
final int secondsSinceLast =
(int) ((SystemClock.elapsedRealtime() - this.lastConnect) / 1000);
return interval - secondsSinceLast;
}
public int getAttempt() {
return this.attempt;
}
public Features getFeatures() {
return this.features;
}
public long getLastSessionEstablished() {
final long diff = SystemClock.elapsedRealtime() - this.lastSessionStarted;
return System.currentTimeMillis() - diff;
}
public long getLastConnect() {
return this.lastConnect;
}
public long getLastPingSent() {
return this.lastPingSent;
}
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());
}
public void resetAttemptCount(boolean resetConnectTime) {
this.attempt = 0;
if (resetConnectTime) {
this.lastConnect = 0;
}
}
public void setInteractive(boolean interactive) {
this.mInteractive = interactive;
}
private IqGenerator getIqGenerator() {
return mXmppConnectionService.getIqGenerator();
}
public void trackOfflineMessageRetrieval(boolean trackOfflineMessageRetrieval) {
if (trackOfflineMessageRetrieval) {
final IqPacket iqPing = new IqPacket(IqPacket.TYPE.GET);
iqPing.addChild("ping", Namespace.PING);
this.sendIqPacket(
iqPing,
(a, response) -> {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": got ping response after sending initial presence");
XmppConnection.this.offlineMessagesRetrieved = true;
});
} else {
this.offlineMessagesRetrieved = true;
}
}
public boolean isOfflineMessagesRetrieved() {
return this.offlineMessagesRetrieved;
}
private class MyKeyManager implements 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) {
Log.d(Config.LOGTAG, "getting certificate chain");
try {
return KeyChain.getCertificateChain(mXmppConnectionService, alias);
} catch (final Exception e) {
Log.d(Config.LOGTAG, "could not get certificate chain", e);
return new X509Certificate[0];
}
}
@Override
public String[] getClientAliases(String s, Principal[] principals) {
final String alias = account.getPrivateKeyAlias();
return alias != null ? new String[] {alias} : 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 static class LoginInfo {
public final SaslMechanism saslMechanism;
public final SaslMechanism.Version saslVersion;
public final List<String> inlineBindFeatures;
public final AtomicBoolean success = new AtomicBoolean(false);
private LoginInfo(
final SaslMechanism saslMechanism,
final SaslMechanism.Version saslVersion,
final Collection<String> inlineBindFeatures) {
Preconditions.checkNotNull(saslMechanism, "SASL Mechanism must not be null");
Preconditions.checkNotNull(saslVersion, "SASL version must not be null");
this.saslMechanism = saslMechanism;
this.saslVersion = saslVersion;
this.inlineBindFeatures =
inlineBindFeatures == null
? Collections.emptyList()
: ImmutableList.copyOf(inlineBindFeatures);
}
public static SaslMechanism mechanism(final LoginInfo loginInfo) {
return loginInfo == null ? null : loginInfo.saslMechanism;
}
public void success(final String challenge, final SSLSocket sslSocket)
throws SaslMechanism.AuthenticationException {
final var response = this.saslMechanism.getResponse(challenge, sslSocket);
if (!Strings.isNullOrEmpty(response)) {
throw new SaslMechanism.AuthenticationException(
"processing success yielded another response");
}
if (this.success.compareAndSet(false, true)) {
return;
}
throw new SaslMechanism.AuthenticationException("Process 'success' twice");
}
public static boolean isSuccess(final LoginInfo loginInfo) {
return loginInfo != null && loginInfo.success.get();
}
}
private static class StreamId {
public final String id;
public final Resolver.Result location;
private StreamId(String id, Resolver.Result location) {
this.id = id;
this.location = location;
}
@NonNull
@Override
public String toString() {
return MoreObjects.toStringHelper(this)
.add("id", id)
.add("location", location)
.toString();
}
}
private static class StateChangingError extends Error {
private final Account.State state;
public StateChangingError(Account.State state) {
this.state = state;
}
}
private static class StateChangingException extends IOException {
private final Account.State state;
public StateChangingException(Account.State state) {
this.state = state;
}
}
public class Features {
XmppConnection connection;
private boolean carbonsEnabled = false;
private boolean encryptionEnabled = false;
private boolean blockListRequested = false;
public Features(final XmppConnection connection) {
this.connection = connection;
}
private boolean hasDiscoFeature(final Jid server, final String feature) {
synchronized (XmppConnection.this.disco) {
final ServiceDiscoveryResult sdr = connection.disco.get(server);
return sdr != null && sdr.getFeatures().contains(feature);
}
}
public boolean carbons() {
return hasDiscoFeature(account.getDomain(), Namespace.CARBONS);
}
public boolean commands() {
return hasDiscoFeature(account.getDomain(), Namespace.COMMANDS);
}
public boolean easyOnboardingInvites() {
synchronized (commands) {
return commands.containsKey(Namespace.EASY_ONBOARDING_INVITE);
}
}
public boolean bookmarksConversion() {
return hasDiscoFeature(account.getJid().asBareJid(), Namespace.BOOKMARKS_CONVERSION)
&& pepPublishOptions();
}
public boolean blocking() {
return hasDiscoFeature(account.getDomain(), Namespace.BLOCKING);
}
public boolean spamReporting() {
return hasDiscoFeature(account.getDomain(), Namespace.REPORTING);
}
public boolean flexibleOfflineMessageRetrieval() {
return hasDiscoFeature(
account.getDomain(), Namespace.FLEXIBLE_OFFLINE_MESSAGE_RETRIEVAL);
}
public boolean register() {
return hasDiscoFeature(account.getDomain(), Namespace.REGISTER);
}
public boolean invite() {
return connection.streamFeatures != null
&& connection.streamFeatures.hasChild("register", Namespace.INVITE);
}
public boolean sm() {
return streamId != null
|| (connection.streamFeatures != null
&& connection.streamFeatures.hasChild(
"sm", Namespace.STREAM_MANAGEMENT));
}
public boolean csi() {
return connection.streamFeatures != null
&& connection.streamFeatures.hasChild("csi", Namespace.CSI);
}
public boolean pep() {
synchronized (XmppConnection.this.disco) {
ServiceDiscoveryResult info = disco.get(account.getJid().asBareJid());
return info != null && info.hasIdentity("pubsub", "pep");
}
}
public boolean pepPersistent() {
synchronized (XmppConnection.this.disco) {
ServiceDiscoveryResult info = disco.get(account.getJid().asBareJid());
return info != null
&& info.getFeatures()
.contains("http://jabber.org/protocol/pubsub#persistent-items");
}
}
public boolean pepPublishOptions() {
return hasDiscoFeature(account.getJid().asBareJid(), Namespace.PUBSUB_PUBLISH_OPTIONS);
}
public boolean pepOmemoWhitelisted() {
return hasDiscoFeature(
account.getJid().asBareJid(), AxolotlService.PEP_OMEMO_WHITELISTED);
}
public boolean mam() {
return MessageArchiveService.Version.has(getAccountFeatures());
}
public List<String> getAccountFeatures() {
ServiceDiscoveryResult result = connection.disco.get(account.getJid().asBareJid());
return result == null ? Collections.emptyList() : result.getFeatures();
}
public boolean push() {
return hasDiscoFeature(account.getJid().asBareJid(), Namespace.PUSH)
|| hasDiscoFeature(account.getDomain(), Namespace.PUSH);
}
public boolean rosterVersioning() {
return connection.streamFeatures != null && connection.streamFeatures.hasChild("ver");
}
public void setBlockListRequested(boolean value) {
this.blockListRequested = value;
}
public boolean httpUpload(long filesize) {
if (Config.DISABLE_HTTP_UPLOAD) {
return false;
} else {
for (String namespace :
new String[] {Namespace.HTTP_UPLOAD, Namespace.HTTP_UPLOAD_LEGACY}) {
List<Entry<Jid, ServiceDiscoveryResult>> items =
findDiscoItemsByFeature(namespace);
if (items.size() > 0) {
try {
long maxsize =
Long.parseLong(
items.get(0)
.getValue()
.getExtendedDiscoInformation(
namespace, "max-file-size"));
if (filesize <= maxsize) {
return true;
} else {
Log.d(
Config.LOGTAG,
account.getJid().asBareJid()
+ ": http upload is not available for files with size "
+ filesize
+ " (max is "
+ maxsize
+ ")");
return false;
}
} catch (Exception e) {
return true;
}
}
}
return false;
}
}
public boolean useLegacyHttpUpload() {
return findDiscoItemByFeature(Namespace.HTTP_UPLOAD) == null
&& findDiscoItemByFeature(Namespace.HTTP_UPLOAD_LEGACY) != null;
}
public long getMaxHttpUploadSize() {
for (String namespace :
new String[] {Namespace.HTTP_UPLOAD, Namespace.HTTP_UPLOAD_LEGACY}) {
List<Entry<Jid, ServiceDiscoveryResult>> items = findDiscoItemsByFeature(namespace);
if (items.size() > 0) {
try {
return Long.parseLong(
items.get(0)
.getValue()
.getExtendedDiscoInformation(namespace, "max-file-size"));
} catch (Exception e) {
// ignored
}
}
}
return -1;
}
public boolean stanzaIds() {
return hasDiscoFeature(account.getJid().asBareJid(), Namespace.STANZA_IDS);
}
public boolean bookmarks2() {
return pepPublishOptions()
&& hasDiscoFeature(account.getJid().asBareJid(), Namespace.BOOKMARKS2_COMPAT);
}
public boolean externalServiceDiscovery() {
return hasDiscoFeature(account.getDomain(), Namespace.EXTERNAL_SERVICE_DISCOVERY);
}
}
}