1package eu.siacs.conversations.xmpp;
2
3import static eu.siacs.conversations.utils.Random.SECURE_RANDOM;
4
5import android.content.Context;
6import android.graphics.Bitmap;
7import android.graphics.BitmapFactory;
8import android.os.Build;
9import android.os.SystemClock;
10import android.security.KeyChain;
11import android.util.Base64;
12import android.util.Log;
13import android.util.Pair;
14import android.util.SparseArray;
15
16import androidx.annotation.NonNull;
17import androidx.annotation.Nullable;
18
19import com.google.common.base.MoreObjects;
20import com.google.common.base.Optional;
21import com.google.common.base.Preconditions;
22import com.google.common.base.Strings;
23import com.google.common.collect.ImmutableList;
24
25import org.xmlpull.v1.XmlPullParserException;
26
27import java.io.ByteArrayInputStream;
28import java.io.IOException;
29import java.io.InputStream;
30import java.net.ConnectException;
31import java.net.IDN;
32import java.net.InetAddress;
33import java.net.InetSocketAddress;
34import java.net.Socket;
35import java.net.UnknownHostException;
36import java.security.KeyManagementException;
37import java.security.NoSuchAlgorithmException;
38import java.security.Principal;
39import java.security.PrivateKey;
40import java.security.cert.Certificate;
41import java.security.cert.X509Certificate;
42import java.util.ArrayList;
43import java.util.Arrays;
44import java.util.Collection;
45import java.util.Collections;
46import java.util.HashMap;
47import java.util.HashSet;
48import java.util.Hashtable;
49import java.util.Iterator;
50import java.util.List;
51import java.util.Map.Entry;
52import java.util.Set;
53import java.util.concurrent.CountDownLatch;
54import java.util.concurrent.Executors;
55import java.util.concurrent.ScheduledExecutorService;
56import java.util.concurrent.ScheduledFuture;
57import java.util.concurrent.TimeUnit;
58import java.util.concurrent.atomic.AtomicBoolean;
59import java.util.concurrent.atomic.AtomicInteger;
60import java.util.regex.Matcher;
61
62import javax.net.ssl.KeyManager;
63import javax.net.ssl.SSLContext;
64import javax.net.ssl.SSLPeerUnverifiedException;
65import javax.net.ssl.SSLSession;
66import javax.net.ssl.SSLSocket;
67import javax.net.ssl.SSLSocketFactory;
68import javax.net.ssl.X509KeyManager;
69import javax.net.ssl.X509TrustManager;
70
71import eu.siacs.conversations.AppSettings;
72import eu.siacs.conversations.BuildConfig;
73import eu.siacs.conversations.Config;
74import eu.siacs.conversations.R;
75import eu.siacs.conversations.crypto.XmppDomainVerifier;
76import eu.siacs.conversations.crypto.axolotl.AxolotlService;
77import eu.siacs.conversations.crypto.sasl.ChannelBinding;
78import eu.siacs.conversations.crypto.sasl.ChannelBindingMechanism;
79import eu.siacs.conversations.crypto.sasl.HashedToken;
80import eu.siacs.conversations.crypto.sasl.SaslMechanism;
81import eu.siacs.conversations.entities.Account;
82import eu.siacs.conversations.entities.Message;
83import eu.siacs.conversations.entities.ServiceDiscoveryResult;
84import eu.siacs.conversations.generator.IqGenerator;
85import eu.siacs.conversations.http.HttpConnectionManager;
86import eu.siacs.conversations.parser.IqParser;
87import eu.siacs.conversations.parser.MessageParser;
88import eu.siacs.conversations.parser.PresenceParser;
89import eu.siacs.conversations.persistance.FileBackend;
90import eu.siacs.conversations.services.MemorizingTrustManager;
91import eu.siacs.conversations.services.MessageArchiveService;
92import eu.siacs.conversations.services.NotificationService;
93import eu.siacs.conversations.services.XmppConnectionService;
94import eu.siacs.conversations.utils.AccountUtils;
95import eu.siacs.conversations.utils.CryptoHelper;
96import eu.siacs.conversations.utils.Patterns;
97import eu.siacs.conversations.utils.PhoneHelper;
98import eu.siacs.conversations.utils.Resolver;
99import eu.siacs.conversations.utils.SSLSockets;
100import eu.siacs.conversations.utils.SocksSocketFactory;
101import eu.siacs.conversations.utils.XmlHelper;
102import eu.siacs.conversations.xml.Element;
103import eu.siacs.conversations.xml.LocalizedContent;
104import eu.siacs.conversations.xml.Namespace;
105import eu.siacs.conversations.xml.Tag;
106import eu.siacs.conversations.xml.TagWriter;
107import eu.siacs.conversations.xml.XmlReader;
108import eu.siacs.conversations.xmpp.bind.Bind2;
109import eu.siacs.conversations.xmpp.forms.Data;
110import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
111
112import im.conversations.android.xmpp.model.AuthenticationFailure;
113import im.conversations.android.xmpp.model.AuthenticationRequest;
114import im.conversations.android.xmpp.model.AuthenticationStreamFeature;
115import im.conversations.android.xmpp.model.StreamElement;
116import im.conversations.android.xmpp.model.bind2.Bind;
117import im.conversations.android.xmpp.model.bind2.Bound;
118import im.conversations.android.xmpp.model.csi.Active;
119import im.conversations.android.xmpp.model.csi.Inactive;
120import im.conversations.android.xmpp.model.error.Condition;
121import im.conversations.android.xmpp.model.fast.Fast;
122import im.conversations.android.xmpp.model.fast.RequestToken;
123import im.conversations.android.xmpp.model.jingle.Jingle;
124import im.conversations.android.xmpp.model.sasl.Auth;
125import im.conversations.android.xmpp.model.sasl.Failure;
126import im.conversations.android.xmpp.model.sasl.Mechanisms;
127import im.conversations.android.xmpp.model.sasl.Response;
128import im.conversations.android.xmpp.model.sasl.SaslError;
129import im.conversations.android.xmpp.model.sasl.Success;
130import im.conversations.android.xmpp.model.sasl2.Authenticate;
131import im.conversations.android.xmpp.model.sasl2.Authentication;
132import im.conversations.android.xmpp.model.sasl2.UserAgent;
133import im.conversations.android.xmpp.model.sm.Ack;
134import im.conversations.android.xmpp.model.sm.Enable;
135import im.conversations.android.xmpp.model.sm.Enabled;
136import im.conversations.android.xmpp.model.sm.Failed;
137import im.conversations.android.xmpp.model.sm.Request;
138import im.conversations.android.xmpp.model.sm.Resume;
139import im.conversations.android.xmpp.model.sm.Resumed;
140import im.conversations.android.xmpp.model.sm.StreamManagement;
141import im.conversations.android.xmpp.model.stanza.Iq;
142import im.conversations.android.xmpp.model.stanza.Presence;
143import im.conversations.android.xmpp.model.stanza.Stanza;
144import im.conversations.android.xmpp.model.tls.Proceed;
145import im.conversations.android.xmpp.model.tls.StartTls;
146import im.conversations.android.xmpp.processor.BindProcessor;
147
148import okhttp3.HttpUrl;
149
150import org.xmlpull.v1.XmlPullParserException;
151
152import java.io.ByteArrayInputStream;
153import java.io.IOException;
154import java.io.InputStream;
155import java.net.ConnectException;
156import java.net.IDN;
157import java.net.InetAddress;
158import java.net.InetSocketAddress;
159import java.net.Socket;
160import java.net.UnknownHostException;
161import java.security.KeyManagementException;
162import java.security.NoSuchAlgorithmException;
163import java.security.Principal;
164import java.security.PrivateKey;
165import java.security.cert.X509Certificate;
166import java.util.ArrayList;
167import java.util.Arrays;
168import java.util.Collection;
169import java.util.Collections;
170import java.util.HashMap;
171import java.util.HashSet;
172import java.util.Hashtable;
173import java.util.Iterator;
174import java.util.List;
175import java.util.Map.Entry;
176import java.util.Set;
177import java.util.concurrent.CountDownLatch;
178import java.util.concurrent.TimeUnit;
179import java.util.concurrent.atomic.AtomicBoolean;
180import java.util.concurrent.atomic.AtomicInteger;
181import java.util.function.Consumer;
182import java.util.regex.Matcher;
183
184import javax.net.ssl.KeyManager;
185import javax.net.ssl.SSLContext;
186import javax.net.ssl.SSLPeerUnverifiedException;
187import javax.net.ssl.SSLSocket;
188import javax.net.ssl.SSLSocketFactory;
189import javax.net.ssl.X509KeyManager;
190import javax.net.ssl.X509TrustManager;
191
192public class XmppConnection implements Runnable {
193
194 protected final Account account;
195 private final Features features = new Features(this);
196 private final HashMap<Jid, ServiceDiscoveryResult> disco = new HashMap<>();
197 private final HashMap<String, Jid> commands = new HashMap<>();
198 private final SparseArray<Stanza> mStanzaQueue = new SparseArray<>();
199 private final Hashtable<String, Pair<Iq, Pair<Consumer<Iq>, ScheduledFuture>>> packetCallbacks = new Hashtable<>();
200 private final Set<OnAdvancedStreamFeaturesLoaded> advancedStreamFeaturesLoadedListeners =
201 new HashSet<>();
202 private final AppSettings appSettings;
203 private final XmppConnectionService mXmppConnectionService;
204 private Socket socket;
205 private XmlReader tagReader;
206 private TagWriter tagWriter = new TagWriter();
207 private boolean shouldAuthenticate = true;
208 private boolean inSmacksSession = false;
209 private boolean quickStartInProgress = false;
210 private boolean isBound = false;
211 private boolean offlineMessagesRetrieved = false;
212 private im.conversations.android.xmpp.model.streams.Features streamFeatures;
213 private im.conversations.android.xmpp.model.streams.Features boundStreamFeatures;
214 private StreamId streamId = null;
215 private int stanzasReceived = 0;
216 private int stanzasSent = 0;
217 private int stanzasSentBeforeAuthentication;
218 private long lastPacketReceived = 0;
219 private long lastPingSent = 0;
220 private long lastConnect = 0;
221 private long lastSessionStarted = 0;
222 private long lastDiscoStarted = 0;
223 private boolean isMamPreferenceAlways = false;
224 private final AtomicInteger mPendingServiceDiscoveries = new AtomicInteger(0);
225 private final AtomicBoolean mWaitForDisco = new AtomicBoolean(true);
226 private final AtomicBoolean mWaitingForSmCatchup = new AtomicBoolean(false);
227 private final AtomicInteger mSmCatchupMessageCounter = new AtomicInteger(0);
228 private boolean mInteractive = false;
229 private int attempt = 0;
230 private OnJinglePacketReceived jingleListener = null;
231
232 private final Consumer<Presence> presenceListener;
233 private final Consumer<Iq> unregisteredIqListener;
234 private final Consumer<im.conversations.android.xmpp.model.stanza.Message> messageListener;
235 private OnStatusChanged statusListener = null;
236 private final Runnable bindListener;
237 private OnMessageAcknowledged acknowledgedListener = null;
238 private LoginInfo loginInfo;
239 private HashedToken.Mechanism hashTokenRequest;
240 private HttpUrl redirectionUrl = null;
241 private String verifiedHostname = null;
242 private Resolver.Result currentResolverResult;
243 private Resolver.Result seeOtherHostResolverResult;
244 private volatile Thread mThread;
245 private CountDownLatch mStreamCountDownLatch;
246 private static ScheduledExecutorService SCHEDULER = Executors.newScheduledThreadPool(1);
247 private boolean dane = false;
248
249 public XmppConnection(final Account account, final XmppConnectionService service) {
250 this.account = account;
251 this.mXmppConnectionService = service;
252 this.appSettings = mXmppConnectionService.getAppSettings();
253 this.presenceListener = new PresenceParser(service, account);
254 this.unregisteredIqListener = new IqParser(service, account);
255 this.messageListener = new MessageParser(service, account);
256 this.bindListener = new BindProcessor(service, account);
257 }
258
259 private static void fixResource(final Context context, final Account account) {
260 String resource = account.getResource();
261 int fixedPartLength =
262 context.getString(R.string.app_name).length() + 1; // include the trailing dot
263 int randomPartLength = 4; // 3 bytes
264 if (resource != null && resource.length() > fixedPartLength + randomPartLength) {
265 if (validBase64(
266 resource.substring(fixedPartLength, fixedPartLength + randomPartLength))) {
267 account.setResource(resource.substring(0, fixedPartLength + randomPartLength));
268 }
269 }
270 }
271
272 private static boolean validBase64(String input) {
273 try {
274 return Base64.decode(input, Base64.URL_SAFE).length == 3;
275 } catch (Throwable throwable) {
276 return false;
277 }
278 }
279
280 public boolean daneVerified() {
281 return dane;
282 }
283
284 public boolean resolverAuthenticated() {
285 if (currentResolverResult == null) return false;
286 return currentResolverResult.isAuthenticated();
287 }
288
289 private void changeStatus(final Account.State nextStatus) {
290 synchronized (this) {
291 if (Thread.currentThread().isInterrupted()) {
292 Log.d(
293 Config.LOGTAG,
294 account.getJid().asBareJid()
295 + ": not changing status to "
296 + nextStatus
297 + " because thread was interrupted");
298 return;
299 }
300 if (account.getStatus() != nextStatus) {
301 if (nextStatus == Account.State.OFFLINE
302 && account.getStatus() != Account.State.CONNECTING
303 && account.getStatus() != Account.State.ONLINE
304 && account.getStatus() != Account.State.DISABLED
305 && account.getStatus() != Account.State.LOGGED_OUT) {
306 return;
307 }
308 if (nextStatus == Account.State.ONLINE) {
309 this.attempt = 0;
310 }
311 account.setStatus(nextStatus);
312 } else {
313 return;
314 }
315 }
316 if (statusListener != null) {
317 statusListener.onStatusChanged(account);
318 }
319 }
320
321 public Jid getJidForCommand(final String node) {
322 synchronized (this.commands) {
323 return this.commands.get(node);
324 }
325 }
326
327 public void prepareNewConnection() {
328 this.lastConnect = SystemClock.elapsedRealtime();
329 this.lastPingSent = SystemClock.elapsedRealtime();
330 this.lastDiscoStarted = Long.MAX_VALUE;
331 this.mWaitingForSmCatchup.set(false);
332 this.changeStatus(Account.State.CONNECTING);
333 }
334
335 public boolean isWaitingForSmCatchup() {
336 return mWaitingForSmCatchup.get();
337 }
338
339 public void incrementSmCatchupMessageCounter() {
340 this.mSmCatchupMessageCounter.incrementAndGet();
341 }
342
343 protected void connect() {
344 if (mXmppConnectionService.areMessagesInitialized()) {
345 mXmppConnectionService.resetSendingToWaiting(account);
346 }
347 Log.d(Config.LOGTAG, account.getJid().asBareJid().toString() + ": connecting");
348 this.loginInfo = null;
349 this.features.encryptionEnabled = false;
350 this.inSmacksSession = false;
351 this.quickStartInProgress = false;
352 this.isBound = false;
353 this.attempt++;
354 this.verifiedHostname = null; // will be set if user entered hostname is being used or hostname was verified
355 this.dane = false;
356 // with dnssec
357 try {
358 Socket localSocket;
359 shouldAuthenticate = !account.isOptionSet(Account.OPTION_REGISTER);
360 this.changeStatus(Account.State.CONNECTING);
361 final boolean useTor = mXmppConnectionService.useTorToConnect() || account.isOnion();
362 final boolean extended = mXmppConnectionService.showExtendedConnectionOptions();
363 if (useTor) {
364 String destination;
365 if (account.getHostname().isEmpty() || account.isOnion()) {
366 destination = account.getServer();
367 } else {
368 destination = account.getHostname();
369 this.verifiedHostname = destination;
370 }
371
372 final int port = account.getPort();
373 final boolean directTls = Resolver.useDirectTls(port);
374
375 Log.d(
376 Config.LOGTAG,
377 account.getJid().asBareJid()
378 + ": connect to "
379 + destination
380 + " via Tor. directTls="
381 + directTls);
382 localSocket = SocksSocketFactory.createSocketOverTor(destination, port);
383
384 if (directTls) {
385 localSocket = upgradeSocketToTls(localSocket);
386 features.encryptionEnabled = true;
387 }
388
389 try {
390 startXmpp(localSocket);
391 } catch (final InterruptedException e) {
392 Log.d(
393 Config.LOGTAG,
394 account.getJid().asBareJid()
395 + ": thread was interrupted before beginning stream");
396 return;
397 } catch (final Exception e) {
398 throw new IOException("Could not start stream", e);
399 }
400 } else {
401 final String domain = account.getServer();
402 final List<Resolver.Result> results = new ArrayList<>();
403 final boolean hardcoded = extended && !account.getHostname().isEmpty();
404 if (hardcoded) {
405 results.addAll(
406 Resolver.fromHardCoded(account.getHostname(), account.getPort()));
407 } else {
408 results.addAll(Resolver.resolve(domain));
409 }
410 if (Thread.currentThread().isInterrupted()) {
411 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": Thread was interrupted");
412 return;
413 }
414 if (results.isEmpty()) {
415 Log.e(
416 Config.LOGTAG,
417 account.getJid().asBareJid() + ": Resolver results were empty");
418 return;
419 }
420 final Resolver.Result storedBackupResult;
421 if (hardcoded) {
422 storedBackupResult = null;
423 } else {
424 storedBackupResult =
425 mXmppConnectionService.databaseBackend.findResolverResult(domain);
426 if (storedBackupResult != null && !results.contains(storedBackupResult)) {
427 results.add(storedBackupResult);
428 Log.d(
429 Config.LOGTAG,
430 account.getJid().asBareJid()
431 + ": loaded backup resolver result from db: "
432 + storedBackupResult);
433 }
434 }
435 final StreamId streamId = this.streamId;
436 final Resolver.Result resumeLocation = streamId == null ? null : streamId.location;
437 if (resumeLocation != null) {
438 Log.d(
439 Config.LOGTAG,
440 account.getJid().asBareJid()
441 + ": injected resume location on position 0");
442 results.add(0, resumeLocation);
443 }
444 final Resolver.Result seeOtherHost = this.seeOtherHostResolverResult;
445 if (seeOtherHost != null) {
446 Log.d(
447 Config.LOGTAG,
448 account.getJid().asBareJid()
449 + ": injected see-other-host on position 0");
450 results.add(0, seeOtherHost);
451 }
452 for (final Iterator<Resolver.Result> iterator = results.iterator();
453 iterator.hasNext(); ) {
454 final Resolver.Result result = iterator.next();
455 if (Thread.currentThread().isInterrupted()) {
456 Log.d(
457 Config.LOGTAG,
458 account.getJid().asBareJid() + ": Thread was interrupted");
459 return;
460 }
461 try {
462 // if tls is true, encryption is implied and must not be started
463 features.encryptionEnabled = result.isDirectTls();
464 verifiedHostname =
465 result.isAuthenticated() ? result.getHostname().toString() : null;
466 final InetSocketAddress addr;
467 if (result.getIp() != null) {
468 addr = new InetSocketAddress(result.getIp(), result.getPort());
469 Log.d(
470 Config.LOGTAG,
471 account.getJid().asBareJid().toString()
472 + ": using values from resolver "
473 + (result.getHostname() == null
474 ? ""
475 : result.getHostname().toString() + "/")
476 + result.getIp().getHostAddress()
477 + ":"
478 + result.getPort()
479 + " tls: "
480 + features.encryptionEnabled);
481 } else {
482 addr =
483 new InetSocketAddress(
484 IDN.toASCII(result.getHostname().toString()),
485 result.getPort());
486 Log.d(
487 Config.LOGTAG,
488 account.getJid().asBareJid().toString()
489 + ": using values from resolver "
490 + result.getHostname().toString()
491 + ":"
492 + result.getPort()
493 + " tls: "
494 + features.encryptionEnabled);
495 }
496
497 localSocket = new Socket();
498 localSocket.connect(addr, Config.SOCKET_TIMEOUT * 1000);
499
500 if (features.encryptionEnabled) {
501 localSocket = upgradeSocketToTls(localSocket);
502 }
503
504 localSocket.setSoTimeout(Config.SOCKET_TIMEOUT * 1000);
505 if (startXmpp(localSocket)) {
506 localSocket.setSoTimeout(
507 0); // reset to 0; once the connection is established we don’t
508 // want this
509 if (!hardcoded && !result.equals(storedBackupResult)) {
510 mXmppConnectionService.databaseBackend.saveResolverResult(
511 domain, result);
512 }
513 this.currentResolverResult = result;
514 this.seeOtherHostResolverResult = null;
515 break; // successfully connected to server that speaks xmpp
516 } else {
517 FileBackend.close(localSocket);
518 throw new StateChangingException(Account.State.STREAM_OPENING_ERROR);
519 }
520 } catch (final StateChangingException e) {
521 if (!iterator.hasNext()) {
522 throw e;
523 }
524 } catch (InterruptedException e) {
525 Log.d(
526 Config.LOGTAG,
527 account.getJid().asBareJid()
528 + ": thread was interrupted before beginning stream");
529 return;
530 } catch (final Throwable e) {
531 Log.d(
532 Config.LOGTAG,
533 account.getJid().asBareJid().toString()
534 + ": "
535 + e.getMessage()
536 + "("
537 + e.getClass().getName()
538 + ")");
539 if (!iterator.hasNext()) {
540 throw new UnknownHostException();
541 }
542 }
543 }
544 }
545 processStream();
546 } catch (final SecurityException e) {
547 this.changeStatus(Account.State.MISSING_INTERNET_PERMISSION);
548 } catch (final StateChangingException e) {
549 this.changeStatus(e.state);
550 } catch (final UnknownHostException
551 | ConnectException
552 | SocksSocketFactory.HostNotFoundException e) {
553 this.changeStatus(Account.State.SERVER_NOT_FOUND);
554 } catch (final SocksSocketFactory.SocksProxyNotFoundException e) {
555 this.changeStatus(Account.State.TOR_NOT_AVAILABLE);
556 } catch (final IOException | XmlPullParserException e) {
557 Log.d(Config.LOGTAG, account.getJid().asBareJid().toString() + ": " + e.getMessage());
558 this.changeStatus(Account.State.OFFLINE);
559 this.attempt = Math.max(0, this.attempt - 1);
560 } finally {
561 if (!Thread.currentThread().isInterrupted()) {
562 forceCloseSocket();
563 } else {
564 Log.d(
565 Config.LOGTAG,
566 account.getJid().asBareJid()
567 + ": not force closing socket because thread was interrupted");
568 }
569 }
570 }
571
572 /**
573 * Starts xmpp protocol, call after connecting to socket
574 *
575 * @return true if server returns with valid xmpp, false otherwise
576 */
577 private boolean startXmpp(final Socket socket) throws Exception {
578 if (Thread.currentThread().isInterrupted()) {
579 throw new InterruptedException();
580 }
581 this.socket = socket;
582 tagReader = new XmlReader();
583 if (tagWriter != null) {
584 tagWriter.forceClose();
585 }
586 tagWriter = new TagWriter();
587 tagWriter.setOutputStream(socket.getOutputStream());
588 tagReader.setInputStream(socket.getInputStream());
589 tagWriter.beginDocument();
590 final boolean quickStart;
591 if (socket instanceof SSLSocket sslSocket) {
592 SSLSockets.log(account, sslSocket);
593 quickStart = establishStream(SSLSockets.version(sslSocket));
594 } else {
595 quickStart = establishStream(SSLSockets.Version.NONE);
596 }
597 final Tag tag = tagReader.readTag();
598 if (Thread.currentThread().isInterrupted()) {
599 throw new InterruptedException();
600 }
601 if (tag == null) {
602 return false;
603 }
604 final boolean success = tag.isStart("stream", Namespace.STREAMS);
605 if (success) {
606 final var from = tag.getAttribute("from");
607 if (from == null || !from.equals(account.getServer())) {
608 throw new StateChangingException(Account.State.HOST_UNKNOWN);
609 }
610 }
611 if (success && quickStart) {
612 this.quickStartInProgress = true;
613 }
614 return success;
615 }
616
617 private SSLSocketFactory getSSLSocketFactory(int port, Consumer<Boolean> daneCb)
618 throws NoSuchAlgorithmException, KeyManagementException {
619 final SSLContext sc = SSLSockets.getSSLContext();
620 final MemorizingTrustManager trustManager =
621 this.mXmppConnectionService.getMemorizingTrustManager();
622 final KeyManager[] keyManager;
623 if (account.getPrivateKeyAlias() != null) {
624 keyManager = new KeyManager[] {new MyKeyManager()};
625 } else {
626 keyManager = null;
627 }
628 final String domain = account.getServer();
629 sc.init(
630 keyManager,
631 new X509TrustManager[] {
632 mInteractive
633 ? trustManager.getInteractive(domain, verifiedHostname, port, daneCb)
634 : trustManager.getNonInteractive(domain, verifiedHostname, port, daneCb)
635 },
636 SECURE_RANDOM);
637 return sc.getSocketFactory();
638 }
639
640 @Override
641 public void run() {
642 synchronized (this) {
643 this.mThread = Thread.currentThread();
644 if (this.mThread.isInterrupted()) {
645 Log.d(
646 Config.LOGTAG,
647 account.getJid().asBareJid()
648 + ": aborting connect because thread was interrupted");
649 return;
650 }
651 forceCloseSocket();
652 }
653 connect();
654 }
655
656 private void processStream() throws XmlPullParserException, IOException {
657 final CountDownLatch streamCountDownLatch = new CountDownLatch(1);
658 this.mStreamCountDownLatch = streamCountDownLatch;
659 Tag nextTag = tagReader.readTag();
660 while (nextTag != null && !nextTag.isEnd("stream")) {
661 if (nextTag.isStart("error")) {
662 processStreamError(nextTag);
663 } else if (nextTag.isStart("features", Namespace.STREAMS)) {
664 processStreamFeatures(nextTag);
665 } else if (nextTag.isStart("proceed", Namespace.TLS)) {
666 switchOverToTls(nextTag);
667 } else if (nextTag.isStart("failure", Namespace.TLS)) {
668 throw new StateChangingException(Account.State.TLS_ERROR);
669 } else if (account.isOptionSet(Account.OPTION_REGISTER)
670 && nextTag.isStart("iq", Namespace.JABBER_CLIENT)) {
671 processIq(nextTag);
672 } else if (!isSecure() || this.loginInfo == null) {
673 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
674 } else if (nextTag.isStart("success")) {
675 final Element success = tagReader.readElement(nextTag);
676 if (processSuccess(success)) {
677 break;
678 }
679 } else if (nextTag.isStart("failure", Namespace.SASL)) {
680 final var failure = tagReader.readElement(nextTag, Failure.class);
681 processFailure(failure);
682 } else if (nextTag.isStart("failure", Namespace.SASL_2)) {
683 final var failure =
684 tagReader.readElement(
685 nextTag, im.conversations.android.xmpp.model.sasl2.Failure.class);
686 processFailure(failure);
687 } else if (nextTag.isStart("continue", Namespace.SASL_2)) {
688 // two step sasl2 - we don’t support this yet
689 throw new StateChangingException(Account.State.INCOMPATIBLE_CLIENT);
690 } else if (nextTag.isStart("challenge")) {
691 final Element challenge = tagReader.readElement(nextTag);
692 processChallenge(challenge);
693 } else if (!LoginInfo.isSuccess(this.loginInfo)) {
694 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
695 } else if (this.streamId != null
696 && nextTag.isStart("resumed", Namespace.STREAM_MANAGEMENT)) {
697 final Resumed resumed = tagReader.readElement(nextTag, Resumed.class);
698 processResumed(resumed);
699 } else if (nextTag.isStart("failed", Namespace.STREAM_MANAGEMENT)) {
700 final Failed failed = tagReader.readElement(nextTag, Failed.class);
701 processFailed(failed, true);
702 } else if (nextTag.isStart("iq", Namespace.JABBER_CLIENT)) {
703 processIq(nextTag);
704 } else if (!isBound) {
705 Log.d(
706 Config.LOGTAG,
707 account.getJid().asBareJid()
708 + ": server sent unexpected"
709 + nextTag.identifier());
710 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
711 } else if (nextTag.isStart("message", Namespace.JABBER_CLIENT)) {
712 processMessage(nextTag);
713 } else if (nextTag.isStart("presence", Namespace.JABBER_CLIENT)) {
714 processPresence(nextTag);
715 } else if (nextTag.isStart("enabled", Namespace.STREAM_MANAGEMENT)) {
716 final var enabled = tagReader.readElement(nextTag, Enabled.class);
717 processEnabled(enabled);
718 } else if (nextTag.isStart("r", Namespace.STREAM_MANAGEMENT)) {
719 tagReader.readElement(nextTag);
720 if (Config.EXTENDED_SM_LOGGING) {
721 Log.d(
722 Config.LOGTAG,
723 account.getJid().asBareJid()
724 + ": acknowledging stanza #"
725 + this.stanzasReceived);
726 }
727 final Ack ack = new Ack(this.stanzasReceived);
728 tagWriter.writeStanzaAsync(ack);
729 } else if (nextTag.isStart("a", Namespace.STREAM_MANAGEMENT)) {
730 boolean accountUiNeedsRefresh = false;
731 synchronized (NotificationService.CATCHUP_LOCK) {
732 if (mWaitingForSmCatchup.compareAndSet(true, false)) {
733 final int messageCount = mSmCatchupMessageCounter.get();
734 final int pendingIQs = packetCallbacks.size();
735 Log.d(
736 Config.LOGTAG,
737 account.getJid().asBareJid()
738 + ": SM catchup complete (messages="
739 + messageCount
740 + ", pending IQs="
741 + pendingIQs
742 + ")");
743 accountUiNeedsRefresh = true;
744 if (messageCount > 0) {
745 mXmppConnectionService
746 .getNotificationService()
747 .finishBacklog(true, account);
748 }
749 }
750 }
751 if (accountUiNeedsRefresh) {
752 mXmppConnectionService.updateAccountUi();
753 }
754 final var ack = tagReader.readElement(nextTag, Ack.class);
755 lastPacketReceived = SystemClock.elapsedRealtime();
756 final boolean acknowledgedMessages;
757 synchronized (this.mStanzaQueue) {
758 final Optional<Integer> serverSequence = ack.getHandled();
759 if (serverSequence.isPresent()) {
760 acknowledgedMessages = acknowledgeStanzaUpTo(serverSequence.get());
761 } else {
762 acknowledgedMessages = false;
763 Log.d(
764 Config.LOGTAG,
765 account.getJid().asBareJid()
766 + ": server send ack without sequence number");
767 }
768 }
769 if (acknowledgedMessages) {
770 mXmppConnectionService.updateConversationUi();
771 }
772 } else {
773 Log.e(
774 Config.LOGTAG,
775 account.getJid().asBareJid()
776 + ": Encountered unknown stream element"
777 + nextTag.identifier());
778 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
779 }
780 nextTag = tagReader.readTag();
781 }
782 if (nextTag != null && nextTag.isEnd("stream")) {
783 streamCountDownLatch.countDown();
784 }
785 }
786
787 private void processChallenge(final Element challenge) throws IOException {
788 final SaslMechanism.Version version;
789 try {
790 version = SaslMechanism.Version.of(challenge);
791 } catch (final IllegalArgumentException e) {
792 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
793 }
794 final StreamElement response;
795 if (version == SaslMechanism.Version.SASL) {
796 response = new Response();
797 } else if (version == SaslMechanism.Version.SASL_2) {
798 response = new im.conversations.android.xmpp.model.sasl2.Response();
799 } else {
800 throw new AssertionError("Missing implementation for " + version);
801 }
802 final LoginInfo currentLoginInfo = this.loginInfo;
803 if (currentLoginInfo == null || LoginInfo.isSuccess(currentLoginInfo)) {
804 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
805 }
806 try {
807 response.setContent(
808 currentLoginInfo.saslMechanism.getResponse(
809 challenge.getContent(), sslSocketOrNull(socket)));
810 } catch (final SaslMechanism.AuthenticationException e) {
811 // TODO: Send auth abort tag.
812 Log.e(Config.LOGTAG, e.toString());
813 throw new StateChangingException(Account.State.UNAUTHORIZED);
814 }
815 tagWriter.writeElement(response);
816 }
817
818 private boolean processSuccess(final Element element)
819 throws IOException, XmlPullParserException {
820 final LoginInfo currentLoginInfo = this.loginInfo;
821 final SaslMechanism currentSaslMechanism = LoginInfo.mechanism(currentLoginInfo);
822 if (currentLoginInfo == null || currentSaslMechanism == null) {
823 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
824 }
825 final SaslMechanism.Version version;
826 final String challenge;
827 if (element instanceof Success success) {
828 challenge = success.getContent();
829 version = SaslMechanism.Version.SASL;
830 } else if (element instanceof im.conversations.android.xmpp.model.sasl2.Success success) {
831 challenge = success.findChildContent("additional-data");
832 version = SaslMechanism.Version.SASL_2;
833 } else {
834 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
835 }
836 try {
837 currentLoginInfo.success(challenge, sslSocketOrNull(socket));
838 } catch (final SaslMechanism.AuthenticationException e) {
839 Log.e(Config.LOGTAG, account.getJid().asBareJid() + ": authentication failure ", e);
840 throw new StateChangingException(Account.State.UNAUTHORIZED);
841 }
842 Log.d(
843 Config.LOGTAG,
844 account.getJid().asBareJid().toString() + ": logged in (using " + version + ")");
845 if (SaslMechanism.pin(currentSaslMechanism)) {
846 account.setPinnedMechanism(currentSaslMechanism);
847 }
848 if (element instanceof im.conversations.android.xmpp.model.sasl2.Success success) {
849 final var authorizationJid = success.getAuthorizationIdentifier();
850 checkAssignedDomainOrThrow(authorizationJid);
851 Log.d(
852 Config.LOGTAG,
853 account.getJid().asBareJid()
854 + ": SASL 2.0 authorization identifier was "
855 + authorizationJid);
856 // TODO this should only happen when we used Bind 2
857 if (authorizationJid.isFullJid() && account.setJid(authorizationJid)) {
858 Log.d(
859 Config.LOGTAG,
860 account.getJid().asBareJid()
861 + ": jid changed during SASL 2.0. updating database");
862 }
863 final Bound bound = success.getExtension(Bound.class);
864 final Resumed resumed = success.getExtension(Resumed.class);
865 final Failed failed = success.getExtension(Failed.class);
866 final Element tokenWrapper = success.findChild("token", Namespace.FAST);
867 final String token = tokenWrapper == null ? null : tokenWrapper.getAttribute("token");
868 if (bound != null && resumed != null) {
869 Log.d(
870 Config.LOGTAG,
871 account.getJid().asBareJid()
872 + ": server sent bound and resumed in SASL2 success");
873 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
874 }
875 if (resumed != null && streamId != null) {
876 if (this.boundStreamFeatures != null) {
877 this.streamFeatures = this.boundStreamFeatures;
878 Log.d(
879 Config.LOGTAG,
880 "putting previous stream features back in place: "
881 + XmlHelper.printElementNames(this.boundStreamFeatures));
882 }
883 processResumed(resumed);
884 } else if (failed != null) {
885 processFailed(failed, false); // wait for new stream features
886 }
887 if (bound != null) {
888 clearIqCallbacks();
889 this.isBound = true;
890 processNopStreamFeatures();
891 this.boundStreamFeatures = this.streamFeatures;
892 final Enabled streamManagementEnabled = bound.getExtension(Enabled.class);
893 final Element carbonsEnabled = bound.findChild("enabled", Namespace.CARBONS);
894 final boolean waitForDisco;
895 if (streamManagementEnabled != null) {
896 resetOutboundStanzaQueue();
897 processEnabled(streamManagementEnabled);
898 waitForDisco = true;
899 } else {
900 // if we did not enable stream management in bind do it now
901 waitForDisco = enableStreamManagement();
902 }
903 final boolean negotiatedCarbons;
904 if (carbonsEnabled != null) {
905 negotiatedCarbons = true;
906 Log.d(
907 Config.LOGTAG,
908 account.getJid().asBareJid()
909 + ": successfully enabled carbons (via Bind 2.0)");
910 features.carbonsEnabled = true;
911 } else if (currentLoginInfo.inlineBindFeatures != null
912 && currentLoginInfo.inlineBindFeatures.contains(Namespace.CARBONS)) {
913 negotiatedCarbons = true;
914 Log.d(
915 Config.LOGTAG,
916 account.getJid().asBareJid()
917 + ": successfully enabled carbons (via Bind 2.0/implicit)");
918 features.carbonsEnabled = true;
919 } else {
920 negotiatedCarbons = false;
921 }
922 sendPostBindInitialization(waitForDisco, negotiatedCarbons);
923 }
924 final HashedToken.Mechanism tokenMechanism;
925 if (SaslMechanism.hashedToken(currentSaslMechanism)) {
926 tokenMechanism = ((HashedToken) currentSaslMechanism).getTokenMechanism();
927 } else if (this.hashTokenRequest != null) {
928 tokenMechanism = this.hashTokenRequest;
929 } else {
930 tokenMechanism = null;
931 }
932 if (tokenMechanism != null && !Strings.isNullOrEmpty(token)) {
933 if (ChannelBinding.priority(tokenMechanism.channelBinding)
934 >= ChannelBindingMechanism.getPriority(currentSaslMechanism)) {
935 this.account.setFastToken(tokenMechanism, token);
936 Log.d(
937 Config.LOGTAG,
938 account.getJid().asBareJid()
939 + ": storing hashed token "
940 + tokenMechanism);
941 } else {
942 Log.d(
943 Config.LOGTAG,
944 account.getJid().asBareJid()
945 + ": not accepting hashed token "
946 + tokenMechanism.name()
947 + " for log in mechanism "
948 + currentSaslMechanism.getMechanism());
949 this.account.resetFastToken();
950 }
951 } else if (this.hashTokenRequest != null) {
952 Log.w(
953 Config.LOGTAG,
954 account.getJid().asBareJid()
955 + ": no response to our hashed token request "
956 + this.hashTokenRequest);
957 }
958 }
959 mXmppConnectionService.databaseBackend.updateAccount(account);
960 this.quickStartInProgress = false;
961 if (version == SaslMechanism.Version.SASL) {
962 tagReader.reset();
963 sendStartStream(false, true);
964 final Tag tag = tagReader.readTag();
965 if (tag != null && tag.isStart("stream", Namespace.STREAMS)) {
966 processStream();
967 return true;
968 } else {
969 throw new StateChangingException(Account.State.STREAM_OPENING_ERROR);
970 }
971 } else {
972 return false;
973 }
974 }
975
976 private void resetOutboundStanzaQueue() {
977 synchronized (this.mStanzaQueue) {
978 final ImmutableList.Builder<Stanza> intermediateStanzasBuilder =
979 new ImmutableList.Builder<>();
980 if (Config.EXTENDED_SM_LOGGING) {
981 Log.d(
982 Config.LOGTAG,
983 account.getJid().asBareJid()
984 + ": stanzas sent before auth: "
985 + this.stanzasSentBeforeAuthentication);
986 }
987 for (int i = this.stanzasSentBeforeAuthentication + 1; i <= this.stanzasSent; ++i) {
988 final Stanza stanza = this.mStanzaQueue.get(i);
989 if (stanza != null) {
990 intermediateStanzasBuilder.add(stanza);
991 }
992 }
993 this.mStanzaQueue.clear();
994 final var intermediateStanzas = intermediateStanzasBuilder.build();
995 for (int i = 0; i < intermediateStanzas.size(); ++i) {
996 this.mStanzaQueue.append(i + 1, intermediateStanzas.get(i));
997 }
998 this.stanzasSent = intermediateStanzas.size();
999 if (Config.EXTENDED_SM_LOGGING) {
1000 Log.d(
1001 Config.LOGTAG,
1002 account.getJid().asBareJid()
1003 + ": resetting outbound stanza queue to "
1004 + this.stanzasSent);
1005 }
1006 }
1007 }
1008
1009 private void processNopStreamFeatures() throws IOException {
1010 final Tag tag = tagReader.readTag();
1011 if (tag != null && tag.isStart("features", Namespace.STREAMS)) {
1012 this.streamFeatures =
1013 tagReader.readElement(
1014 tag, im.conversations.android.xmpp.model.streams.Features.class);
1015 Log.d(
1016 Config.LOGTAG,
1017 account.getJid().asBareJid()
1018 + ": processed NOP stream features after success: "
1019 + XmlHelper.printElementNames(this.streamFeatures));
1020 } else {
1021 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received " + tag);
1022 Log.d(
1023 Config.LOGTAG,
1024 account.getJid().asBareJid()
1025 + ": server did not send stream features after SASL2 success");
1026 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
1027 }
1028 }
1029
1030 private void processFailure(final AuthenticationFailure failure) throws IOException {
1031 final SaslMechanism.Version version;
1032 try {
1033 version = SaslMechanism.Version.of(failure);
1034 } catch (final IllegalArgumentException e) {
1035 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
1036 }
1037 Log.d(Config.LOGTAG, failure.toString());
1038 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": login failure " + version);
1039 if (SaslMechanism.hashedToken(LoginInfo.mechanism(this.loginInfo))) {
1040 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": resetting token");
1041 account.resetFastToken();
1042 mXmppConnectionService.databaseBackend.updateAccount(account);
1043 }
1044 final var errorCondition = failure.getErrorCondition();
1045 if (errorCondition instanceof SaslError.InvalidMechanism
1046 || errorCondition instanceof SaslError.MechanismTooWeak) {
1047 Log.d(
1048 Config.LOGTAG,
1049 account.getJid().asBareJid()
1050 + ": invalid or too weak mechanism. resetting quick start");
1051 if (account.setOption(Account.OPTION_QUICKSTART_AVAILABLE, false)) {
1052 mXmppConnectionService.databaseBackend.updateAccount(account);
1053 }
1054 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
1055 } else if (errorCondition instanceof SaslError.TemporaryAuthFailure) {
1056 throw new StateChangingException(Account.State.TEMPORARY_AUTH_FAILURE);
1057 } else if (errorCondition instanceof SaslError.AccountDisabled) {
1058 final String text = failure.getText();
1059 if (Strings.isNullOrEmpty(text)) {
1060 throw new StateChangingException(Account.State.UNAUTHORIZED);
1061 }
1062 final Matcher matcher = Patterns.AUTOLINK_WEB_URL.matcher(text);
1063 if (matcher.find()) {
1064 final HttpUrl url;
1065 try {
1066 url = HttpUrl.get(text.substring(matcher.start(), matcher.end()));
1067 } catch (final IllegalArgumentException e) {
1068 throw new StateChangingException(Account.State.UNAUTHORIZED);
1069 }
1070 if (url.isHttps()) {
1071 this.redirectionUrl = url;
1072 throw new StateChangingException(Account.State.PAYMENT_REQUIRED);
1073 }
1074 }
1075 }
1076 if (SaslMechanism.hashedToken(LoginInfo.mechanism(this.loginInfo))) {
1077 Log.d(
1078 Config.LOGTAG,
1079 account.getJid().asBareJid()
1080 + ": fast authentication failed. falling back to regular authentication");
1081 authenticate();
1082 } else {
1083 throw new StateChangingException(Account.State.UNAUTHORIZED);
1084 }
1085 }
1086
1087 private static SSLSocket sslSocketOrNull(final Socket socket) {
1088 if (socket instanceof SSLSocket) {
1089 return (SSLSocket) socket;
1090 } else {
1091 return null;
1092 }
1093 }
1094
1095 private void processEnabled(final Enabled enabled) {
1096 final StreamId streamId = getStreamId(enabled);
1097 if (streamId == null) {
1098 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": stream management enabled");
1099 } else {
1100 Log.d(
1101 Config.LOGTAG,
1102 account.getJid().asBareJid()
1103 + ": stream management enabled. resume at: "
1104 + streamId.location);
1105 }
1106 this.streamId = streamId;
1107 this.stanzasReceived = 0;
1108 this.inSmacksSession = true;
1109 final var r = new Request();
1110 tagWriter.writeStanzaAsync(r);
1111 }
1112
1113 @Nullable
1114 private StreamId getStreamId(final Enabled enabled) {
1115 final Optional<String> id = enabled.getResumeId();
1116 final String locationAttribute = enabled.getLocation();
1117 final Resolver.Result currentResolverResult = this.currentResolverResult;
1118 final Resolver.Result location;
1119 if (Strings.isNullOrEmpty(locationAttribute) || currentResolverResult == null) {
1120 location = null;
1121 } else {
1122 location = currentResolverResult.seeOtherHost(locationAttribute);
1123 }
1124 return id.isPresent() ? new StreamId(id.get(), location) : null;
1125 }
1126
1127 private void processResumed(final Resumed resumed) throws StateChangingException {
1128 this.inSmacksSession = true;
1129 this.isBound = true;
1130 this.tagWriter.writeStanzaAsync(new Request());
1131 lastPacketReceived = SystemClock.elapsedRealtime();
1132 final Optional<Integer> h = resumed.getHandled();
1133 final int serverCount;
1134 if (h.isPresent()) {
1135 serverCount = h.get();
1136 } else {
1137 resetStreamId();
1138 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
1139 }
1140 final ArrayList<Stanza> failedStanzas = new ArrayList<>();
1141 final boolean acknowledgedMessages;
1142 synchronized (this.mStanzaQueue) {
1143 if (serverCount < stanzasSent) {
1144 Log.d(
1145 Config.LOGTAG,
1146 account.getJid().asBareJid() + ": session resumed with lost packages");
1147 stanzasSent = serverCount;
1148 } else {
1149 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": session resumed");
1150 }
1151 acknowledgedMessages = acknowledgeStanzaUpTo(serverCount);
1152 for (int i = 0; i < this.mStanzaQueue.size(); ++i) {
1153 failedStanzas.add(mStanzaQueue.valueAt(i));
1154 }
1155 mStanzaQueue.clear();
1156 }
1157 if (acknowledgedMessages) {
1158 mXmppConnectionService.updateConversationUi();
1159 }
1160 Log.d(
1161 Config.LOGTAG,
1162 account.getJid().asBareJid() + ": resending " + failedStanzas.size() + " stanzas");
1163 for (final Stanza packet : failedStanzas) {
1164 if (packet instanceof im.conversations.android.xmpp.model.stanza.Message message) {
1165 mXmppConnectionService.markMessage(
1166 account,
1167 message.getTo().asBareJid(),
1168 message.getId(),
1169 Message.STATUS_UNSEND);
1170 }
1171 sendPacket(packet);
1172 }
1173 changeStatusToOnline();
1174 }
1175
1176 private void changeStatusToOnline() {
1177 Log.d(
1178 Config.LOGTAG,
1179 account.getJid().asBareJid() + ": online with resource " + account.getResource());
1180 changeStatus(Account.State.ONLINE);
1181 }
1182
1183 private void processFailed(final Failed failed, final boolean sendBindRequest) {
1184 final Optional<Integer> serverCount = failed.getHandled();
1185 if (serverCount.isPresent()) {
1186 Log.d(
1187 Config.LOGTAG,
1188 account.getJid().asBareJid()
1189 + ": resumption failed but server acknowledged stanza #"
1190 + serverCount.get());
1191 final boolean acknowledgedMessages;
1192 synchronized (this.mStanzaQueue) {
1193 acknowledgedMessages = acknowledgeStanzaUpTo(serverCount.get());
1194 }
1195 if (acknowledgedMessages) {
1196 mXmppConnectionService.updateConversationUi();
1197 }
1198 } else {
1199 Log.d(
1200 Config.LOGTAG,
1201 account.getJid().asBareJid()
1202 + ": resumption failed ("
1203 + XmlHelper.print(failed.getChildren())
1204 + ")");
1205 }
1206 resetStreamId();
1207 if (sendBindRequest) {
1208 sendBindRequest();
1209 }
1210 }
1211
1212 private boolean acknowledgeStanzaUpTo(final int serverCount) {
1213 if (serverCount > stanzasSent) {
1214 Log.e(
1215 Config.LOGTAG,
1216 "server acknowledged more stanzas than we sent. serverCount="
1217 + serverCount
1218 + ", ourCount="
1219 + stanzasSent);
1220 }
1221 boolean acknowledgedMessages = false;
1222 for (int i = 0; i < mStanzaQueue.size(); ++i) {
1223 if (serverCount >= mStanzaQueue.keyAt(i)) {
1224 if (Config.EXTENDED_SM_LOGGING) {
1225 Log.d(
1226 Config.LOGTAG,
1227 account.getJid().asBareJid()
1228 + ": server acknowledged stanza #"
1229 + mStanzaQueue.keyAt(i));
1230 }
1231 final Stanza stanza = mStanzaQueue.valueAt(i);
1232 if (stanza instanceof im.conversations.android.xmpp.model.stanza.Message packet
1233 && acknowledgedListener != null) {
1234 final String id = packet.getId();
1235 final Jid to = packet.getTo();
1236 if (id != null && to != null) {
1237 acknowledgedMessages |=
1238 acknowledgedListener.onMessageAcknowledged(account, to, id);
1239 }
1240 }
1241 mStanzaQueue.removeAt(i);
1242 i--;
1243 }
1244 }
1245 return acknowledgedMessages;
1246 }
1247
1248 private <S extends Stanza> @NonNull S processPacket(final Tag currentTag, final Class<S> clazz)
1249 throws IOException {
1250 final S stanza = tagReader.readElement(currentTag, clazz);
1251 if (stanzasReceived == Integer.MAX_VALUE) {
1252 resetStreamId();
1253 throw new IOException("time to restart the session. cant handle >2 billion pcks");
1254 }
1255 if (inSmacksSession) {
1256 ++stanzasReceived;
1257 } else if (features.sm()) {
1258 Log.d(
1259 Config.LOGTAG,
1260 account.getJid().asBareJid()
1261 + ": not counting stanza("
1262 + stanza.getClass().getSimpleName()
1263 + "). Not in smacks session.");
1264 }
1265 lastPacketReceived = SystemClock.elapsedRealtime();
1266 if (Config.BACKGROUND_STANZA_LOGGING && mXmppConnectionService.checkListeners()) {
1267 Log.d(Config.LOGTAG, "[background stanza] " + stanza);
1268 }
1269 return stanza;
1270 }
1271
1272 private void processIq(final Tag currentTag) throws IOException {
1273 final Iq packet = processPacket(currentTag, Iq.class);
1274 if (packet.isInvalid()) {
1275 Log.e(
1276 Config.LOGTAG,
1277 "encountered invalid iq from='"
1278 + packet.getFrom()
1279 + "' to='"
1280 + packet.getTo()
1281 + "'");
1282 return;
1283 }
1284 if (Thread.currentThread().isInterrupted()) {
1285 Log.d(
1286 Config.LOGTAG,
1287 account.getJid().asBareJid() + "Not processing iq. Thread was interrupted");
1288 return;
1289 }
1290 if (packet.hasExtension(Jingle.class) && packet.getType() == Iq.Type.SET && isBound) {
1291 if (this.jingleListener != null) {
1292 this.jingleListener.onJinglePacketReceived(account, packet);
1293 }
1294 } else {
1295 final var callback = getIqPacketReceivedCallback(packet);
1296 if (callback == null) {
1297 Log.d(
1298 Config.LOGTAG,
1299 account.getJid().asBareJid().toString()
1300 + ": no callback registered for IQ from "
1301 + packet.getFrom());
1302 return;
1303 }
1304 final ScheduledFuture timeoutFuture = callback.second;
1305 try {
1306 if (timeoutFuture == null || timeoutFuture.cancel(false)) {
1307 callback.first.accept(packet);
1308 }
1309 } catch (final StateChangingError error) {
1310 throw new StateChangingException(error.state);
1311 }
1312 }
1313 }
1314
1315 private Pair<Consumer<Iq>, ScheduledFuture> getIqPacketReceivedCallback(final Iq stanza)
1316 throws StateChangingException {
1317 final boolean isRequest =
1318 stanza.getType() == Iq.Type.GET || stanza.getType() == Iq.Type.SET;
1319 if (isRequest) {
1320 if (isBound) {
1321 return new Pair<>(this.unregisteredIqListener, null);
1322 } else {
1323 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
1324 }
1325 } else {
1326 synchronized (this.packetCallbacks) {
1327 final var pair = packetCallbacks.get(stanza.getId());
1328 if (pair == null) {
1329 return null;
1330 }
1331 if (pair.first.toServer(account)) {
1332 if (stanza.fromServer(account)) {
1333 packetCallbacks.remove(stanza.getId());
1334 return pair.second;
1335 } else {
1336 Log.e(
1337 Config.LOGTAG,
1338 account.getJid().asBareJid().toString()
1339 + ": ignoring spoofed iq packet");
1340 }
1341 } else {
1342 if (stanza.getFrom() != null && stanza.getFrom().equals(pair.first.getTo())) {
1343 packetCallbacks.remove(stanza.getId());
1344 return pair.second;
1345 } else {
1346 Log.e(
1347 Config.LOGTAG,
1348 account.getJid().asBareJid().toString()
1349 + ": ignoring spoofed iq packet");
1350 }
1351 }
1352 }
1353 }
1354 return null;
1355 }
1356
1357 private void processMessage(final Tag currentTag) throws IOException {
1358 final var packet =
1359 processPacket(currentTag, im.conversations.android.xmpp.model.stanza.Message.class);
1360 if (packet.isInvalid()) {
1361 Log.e(
1362 Config.LOGTAG,
1363 "encountered invalid message from='"
1364 + packet.getFrom()
1365 + "' to='"
1366 + packet.getTo()
1367 + "'");
1368 return;
1369 }
1370 if (Thread.currentThread().isInterrupted()) {
1371 Log.d(
1372 Config.LOGTAG,
1373 account.getJid().asBareJid()
1374 + "Not processing message. Thread was interrupted");
1375 return;
1376 }
1377 this.messageListener.accept(packet);
1378 }
1379
1380 private void processPresence(final Tag currentTag) throws IOException {
1381 final var packet = processPacket(currentTag, Presence.class);
1382 if (packet.isInvalid()) {
1383 Log.e(
1384 Config.LOGTAG,
1385 "encountered invalid presence from='"
1386 + packet.getFrom()
1387 + "' to='"
1388 + packet.getTo()
1389 + "'");
1390 return;
1391 }
1392 if (Thread.currentThread().isInterrupted()) {
1393 Log.d(
1394 Config.LOGTAG,
1395 account.getJid().asBareJid()
1396 + "Not processing presence. Thread was interrupted");
1397 return;
1398 }
1399 this.presenceListener.accept(packet);
1400 }
1401
1402 private void sendStartTLS() throws IOException {
1403 tagWriter.writeElement(new StartTls());
1404 }
1405
1406 private void switchOverToTls(final Tag currentTag) throws XmlPullParserException, IOException {
1407 tagReader.readElement(currentTag, Proceed.class);
1408 final Socket socket = this.socket;
1409 final SSLSocket sslSocket = upgradeSocketToTls(socket);
1410 this.socket = sslSocket;
1411 this.tagReader.setInputStream(sslSocket.getInputStream());
1412 this.tagWriter.setOutputStream(sslSocket.getOutputStream());
1413 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": TLS connection established");
1414 final boolean quickStart;
1415 try {
1416 quickStart = establishStream(SSLSockets.version(sslSocket));
1417 } catch (final InterruptedException e) {
1418 return;
1419 }
1420 if (quickStart) {
1421 this.quickStartInProgress = true;
1422 }
1423 features.encryptionEnabled = true;
1424 final Tag tag = tagReader.readTag();
1425 if (tag != null && tag.isStart("stream", Namespace.STREAMS)) {
1426 SSLSockets.log(account, sslSocket);
1427 processStream();
1428 } else {
1429 throw new StateChangingException(Account.State.STREAM_OPENING_ERROR);
1430 }
1431 sslSocket.close();
1432 }
1433
1434 private X509Certificate[] certificates(final SSLSession session) throws SSLPeerUnverifiedException {
1435 List<X509Certificate> certs = new ArrayList<>();
1436 for (Certificate certificate : session.getPeerCertificates()) {
1437 if (certificate instanceof X509Certificate) {
1438 certs.add((X509Certificate) certificate);
1439 }
1440 }
1441 return certs.toArray(new X509Certificate[certs.size()]);
1442 }
1443
1444 private SSLSocket upgradeSocketToTls(final Socket socket) throws IOException {
1445 this.dane = false;
1446 final SSLSocketFactory sslSocketFactory;
1447 try {
1448 sslSocketFactory = getSSLSocketFactory(socket.getPort(), (d) -> this.dane = d);
1449 } catch (final NoSuchAlgorithmException | KeyManagementException e) {
1450 throw new StateChangingException(Account.State.TLS_ERROR);
1451 }
1452 final InetAddress address = socket.getInetAddress();
1453 final SSLSocket sslSocket =
1454 (SSLSocket)
1455 sslSocketFactory.createSocket(
1456 socket, address.getHostAddress(), socket.getPort(), true);
1457 SSLSockets.setSecurity(sslSocket);
1458 SSLSockets.setHostname(sslSocket, IDN.toASCII(account.getServer()));
1459 SSLSockets.setApplicationProtocol(sslSocket, "xmpp-client");
1460 final XmppDomainVerifier xmppDomainVerifier = new XmppDomainVerifier();
1461 try {
1462 if (!dane && !xmppDomainVerifier.verify(
1463 account.getServer(), this.verifiedHostname, sslSocket.getSession())) {
1464 Log.d(
1465 Config.LOGTAG,
1466 account.getJid().asBareJid()
1467 + ": TLS certificate domain verification failed");
1468 FileBackend.close(sslSocket);
1469 throw new StateChangingException(Account.State.TLS_ERROR_DOMAIN);
1470 }
1471 } catch (final SSLPeerUnverifiedException e) {
1472 FileBackend.close(sslSocket);
1473 throw new StateChangingException(Account.State.TLS_ERROR);
1474 }
1475 return sslSocket;
1476 }
1477
1478 private void processStreamFeatures(final Tag currentTag) throws IOException {
1479 this.streamFeatures =
1480 tagReader.readElement(
1481 currentTag, im.conversations.android.xmpp.model.streams.Features.class);
1482 final boolean isSecure = isSecure();
1483 final boolean needsBinding = !isBound && !account.isOptionSet(Account.OPTION_REGISTER);
1484 if (this.quickStartInProgress) {
1485 if (this.streamFeatures.hasStreamFeature(Authentication.class)) {
1486 Log.d(
1487 Config.LOGTAG,
1488 account.getJid().asBareJid()
1489 + ": quick start in progress. ignoring features: "
1490 + XmlHelper.printElementNames(this.streamFeatures));
1491 if (SaslMechanism.hashedToken(LoginInfo.mechanism(this.loginInfo))) {
1492 return;
1493 }
1494 if (isFastTokenAvailable(this.streamFeatures.getExtension(Authentication.class))) {
1495 Log.d(
1496 Config.LOGTAG,
1497 account.getJid().asBareJid()
1498 + ": fast token available; resetting quick start");
1499 account.setOption(Account.OPTION_QUICKSTART_AVAILABLE, false);
1500 mXmppConnectionService.databaseBackend.updateAccount(account);
1501 }
1502 return;
1503 }
1504 Log.d(
1505 Config.LOGTAG,
1506 account.getJid().asBareJid()
1507 + ": server lost support for SASL 2. quick start not possible");
1508 this.account.setOption(Account.OPTION_QUICKSTART_AVAILABLE, false);
1509 mXmppConnectionService.databaseBackend.updateAccount(account);
1510 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
1511 }
1512 if (this.streamFeatures.hasExtension(StartTls.class) && !features.encryptionEnabled) {
1513 sendStartTLS();
1514 } else if (this.streamFeatures.hasChild("register", Namespace.REGISTER_STREAM_FEATURE)
1515 && account.isOptionSet(Account.OPTION_REGISTER)) {
1516 if (isSecure) {
1517 register();
1518 } else {
1519 Log.d(
1520 Config.LOGTAG,
1521 account.getJid().asBareJid()
1522 + ": unable to find STARTTLS for registration process "
1523 + XmlHelper.printElementNames(this.streamFeatures));
1524 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
1525 }
1526 } else if (!this.streamFeatures.hasChild("register", Namespace.REGISTER_STREAM_FEATURE)
1527 && account.isOptionSet(Account.OPTION_REGISTER)) {
1528 throw new StateChangingException(Account.State.REGISTRATION_NOT_SUPPORTED);
1529 } else if (this.streamFeatures.hasStreamFeature(Authentication.class)
1530 && shouldAuthenticate
1531 && isSecure) {
1532 authenticate(SaslMechanism.Version.SASL_2);
1533 } else if (this.streamFeatures.hasStreamFeature(Mechanisms.class)
1534 && shouldAuthenticate
1535 && isSecure) {
1536 authenticate(SaslMechanism.Version.SASL);
1537 } else if (this.streamFeatures.streamManagement()
1538 && isSecure
1539 && LoginInfo.isSuccess(loginInfo)
1540 && streamId != null
1541 && !inSmacksSession) {
1542 if (Config.EXTENDED_SM_LOGGING) {
1543 Log.d(
1544 Config.LOGTAG,
1545 account.getJid().asBareJid()
1546 + ": resuming after stanza #"
1547 + stanzasReceived);
1548 }
1549 final var resume = new Resume(this.streamId.id, stanzasReceived);
1550 this.mSmCatchupMessageCounter.set(0);
1551 this.mWaitingForSmCatchup.set(true);
1552 this.tagWriter.writeStanzaAsync(resume);
1553 } else if (needsBinding) {
1554 if (this.streamFeatures.hasChild("bind", Namespace.BIND)
1555 && isSecure
1556 && LoginInfo.isSuccess(loginInfo)) {
1557 sendBindRequest();
1558 } else {
1559 Log.d(
1560 Config.LOGTAG,
1561 account.getJid().asBareJid()
1562 + ": unable to find bind feature "
1563 + XmlHelper.printElementNames(this.streamFeatures));
1564 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
1565 }
1566 } else {
1567 Log.d(
1568 Config.LOGTAG,
1569 account.getJid().asBareJid()
1570 + ": received NOP stream features: "
1571 + XmlHelper.printElementNames(this.streamFeatures));
1572 }
1573 }
1574
1575 private void authenticate() throws IOException {
1576 final boolean isSecure = isSecure();
1577 if (isSecure && this.streamFeatures.hasStreamFeature(Authentication.class)) {
1578 authenticate(SaslMechanism.Version.SASL_2);
1579 } else if (isSecure && this.streamFeatures.hasStreamFeature(Mechanisms.class)) {
1580 authenticate(SaslMechanism.Version.SASL);
1581 } else {
1582 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
1583 }
1584 }
1585
1586 private boolean isSecure() {
1587 return features.encryptionEnabled || Config.ALLOW_NON_TLS_CONNECTIONS || account.isOnion();
1588 }
1589
1590 private void authenticate(final SaslMechanism.Version version) throws IOException {
1591 final AuthenticationStreamFeature authElement;
1592 if (version == SaslMechanism.Version.SASL) {
1593 authElement = this.streamFeatures.getExtension(Mechanisms.class);
1594 } else {
1595 authElement = this.streamFeatures.getExtension(Authentication.class);
1596 }
1597 final Collection<String> mechanisms = authElement.getMechanismNames();
1598 final Element cbElement =
1599 this.streamFeatures.findChild("sasl-channel-binding", Namespace.CHANNEL_BINDING);
1600 final Collection<ChannelBinding> channelBindings = ChannelBinding.of(cbElement);
1601 final SaslMechanism.Factory factory = new SaslMechanism.Factory(account);
1602 final SaslMechanism saslMechanism =
1603 factory.of(mechanisms, channelBindings, version, SSLSockets.version(this.socket));
1604 this.validate(saslMechanism, mechanisms);
1605 final boolean quickStartAvailable;
1606 final String firstMessage =
1607 saslMechanism.getClientFirstMessage(sslSocketOrNull(this.socket));
1608 final boolean usingFast = SaslMechanism.hashedToken(saslMechanism);
1609 final AuthenticationRequest authenticate;
1610 final LoginInfo loginInfo;
1611 if (version == SaslMechanism.Version.SASL) {
1612 authenticate = new Auth();
1613 if (!Strings.isNullOrEmpty(firstMessage)) {
1614 authenticate.setContent(firstMessage);
1615 }
1616 quickStartAvailable = false;
1617 loginInfo = new LoginInfo(saslMechanism, version, Collections.emptyList());
1618 } else if (version == SaslMechanism.Version.SASL_2) {
1619 final Authentication authentication = (Authentication) authElement;
1620 final var inline = authentication.getInline();
1621 final boolean sm = inline != null && inline.hasExtension(StreamManagement.class);
1622 final HashedToken.Mechanism hashTokenRequest;
1623 if (usingFast) {
1624 hashTokenRequest = null;
1625 } else if (inline != null) {
1626 hashTokenRequest =
1627 HashedToken.Mechanism.best(
1628 inline.getFastMechanisms(), SSLSockets.version(this.socket));
1629 } else {
1630 hashTokenRequest = null;
1631 }
1632 final Collection<String> bindFeatures = Bind2.features(inline);
1633 quickStartAvailable =
1634 sm
1635 && bindFeatures != null
1636 && bindFeatures.containsAll(Bind2.QUICKSTART_FEATURES);
1637 if (bindFeatures != null) {
1638 try {
1639 mXmppConnectionService.restoredFromDatabaseLatch.await();
1640 } catch (final InterruptedException e) {
1641 Log.d(
1642 Config.LOGTAG,
1643 account.getJid().asBareJid()
1644 + ": interrupted while waiting for DB restore during SASL2 bind");
1645 return;
1646 }
1647 }
1648 loginInfo = new LoginInfo(saslMechanism, version, bindFeatures);
1649 this.hashTokenRequest = hashTokenRequest;
1650 authenticate =
1651 generateAuthenticationRequest(
1652 firstMessage, usingFast, hashTokenRequest, bindFeatures, sm);
1653 } else {
1654 throw new AssertionError("Missing implementation for " + version);
1655 }
1656 this.loginInfo = loginInfo;
1657 if (account.setOption(Account.OPTION_QUICKSTART_AVAILABLE, quickStartAvailable)) {
1658 mXmppConnectionService.databaseBackend.updateAccount(account);
1659 }
1660
1661 Log.d(
1662 Config.LOGTAG,
1663 account.getJid().toString()
1664 + ": Authenticating with "
1665 + version
1666 + "/"
1667 + LoginInfo.mechanism(loginInfo).getMechanism());
1668 authenticate.setMechanism(LoginInfo.mechanism(loginInfo));
1669 synchronized (this.mStanzaQueue) {
1670 this.stanzasSentBeforeAuthentication = this.stanzasSent;
1671 tagWriter.writeElement(authenticate);
1672 }
1673 }
1674
1675 private static boolean isFastTokenAvailable(final Authentication authentication) {
1676 final var inline = authentication == null ? null : authentication.getInline();
1677 return inline != null && inline.hasExtension(Fast.class);
1678 }
1679
1680 private void validate(
1681 final @Nullable SaslMechanism saslMechanism, Collection<String> mechanisms)
1682 throws StateChangingException {
1683 if (saslMechanism == null) {
1684 Log.d(
1685 Config.LOGTAG,
1686 account.getJid().asBareJid()
1687 + ": unable to find supported SASL mechanism in "
1688 + mechanisms);
1689 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
1690 }
1691 checkRequireChannelBinding(saslMechanism);
1692 if (SaslMechanism.hashedToken(saslMechanism)) {
1693 return;
1694 }
1695 final int pinnedMechanism = account.getPinnedMechanismPriority();
1696 if (pinnedMechanism > saslMechanism.getPriority()) {
1697 Log.e(
1698 Config.LOGTAG,
1699 "Auth failed. Authentication mechanism "
1700 + saslMechanism.getMechanism()
1701 + " has lower priority ("
1702 + saslMechanism.getPriority()
1703 + ") than pinned priority ("
1704 + pinnedMechanism
1705 + "). Possible downgrade attack?");
1706 throw new StateChangingException(Account.State.DOWNGRADE_ATTACK);
1707 }
1708 }
1709
1710 private void checkRequireChannelBinding(@NonNull final SaslMechanism mechanism)
1711 throws StateChangingException {
1712 if (appSettings.isRequireChannelBinding()) {
1713 if (mechanism instanceof ChannelBindingMechanism) {
1714 return;
1715 }
1716 Log.d(Config.LOGTAG, account.getJid() + ": server did not offer channel binding");
1717 throw new StateChangingException(Account.State.INCOMPATIBLE_SERVER);
1718 }
1719 }
1720
1721 private void checkAssignedDomainOrThrow(final Jid jid) throws StateChangingException {
1722 if (jid == null) {
1723 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": bind response is missing jid");
1724 throw new StateChangingException(Account.State.BIND_FAILURE);
1725 }
1726 final var current = this.account.getJid().getDomain();
1727 if (jid.getDomain().equals(current)) {
1728 return;
1729 }
1730 Log.d(
1731 Config.LOGTAG,
1732 account.getJid().asBareJid()
1733 + ": server tried to re-assign domain to "
1734 + jid.getDomain());
1735 throw new StateChangingException(Account.State.BIND_FAILURE);
1736 }
1737
1738 private void checkAssignedDomain(final Jid jid) {
1739 try {
1740 checkAssignedDomainOrThrow(jid);
1741 } catch (final StateChangingException e) {
1742 throw new StateChangingError(e.state);
1743 }
1744 }
1745
1746 private AuthenticationRequest generateAuthenticationRequest(
1747 final String firstMessage, final boolean usingFast) {
1748 return generateAuthenticationRequest(
1749 firstMessage, usingFast, null, Bind2.QUICKSTART_FEATURES, true);
1750 }
1751
1752 private AuthenticationRequest generateAuthenticationRequest(
1753 final String firstMessage,
1754 final boolean usingFast,
1755 final HashedToken.Mechanism hashedTokenRequest,
1756 final Collection<String> bind,
1757 final boolean inlineStreamManagement) {
1758 final var authenticate = new Authenticate();
1759 if (!Strings.isNullOrEmpty(firstMessage)) {
1760 authenticate.addChild("initial-response").setContent(firstMessage);
1761 }
1762 final var userAgent =
1763 authenticate.addExtension(
1764 new UserAgent(
1765 AccountUtils.publicDeviceId(
1766 account, appSettings.getInstallationId())));
1767 userAgent.setSoftware(
1768 String.format("%s %s", BuildConfig.APP_NAME, BuildConfig.VERSION_NAME));
1769 if (!PhoneHelper.isEmulator()) {
1770 userAgent.setDevice(String.format("%s %s", Build.MANUFACTURER, Build.MODEL));
1771 }
1772 // do not include bind if 'inlineStreamManagement' is missing and we have a streamId
1773 // (because we would rather just do a normal SM/resume)
1774 final boolean mayAttemptBind = streamId == null || inlineStreamManagement;
1775 if (bind != null && mayAttemptBind) {
1776 authenticate.addChild(generateBindRequest(bind));
1777 }
1778 if (inlineStreamManagement && streamId != null) {
1779 final var resume = new Resume(this.streamId.id, stanzasReceived);
1780 this.mSmCatchupMessageCounter.set(0);
1781 this.mWaitingForSmCatchup.set(true);
1782 authenticate.addExtension(resume);
1783 }
1784 if (hashedTokenRequest != null) {
1785 authenticate.addExtension(new RequestToken(hashedTokenRequest));
1786 }
1787 if (usingFast) {
1788 authenticate.addExtension(new Fast());
1789 }
1790 return authenticate;
1791 }
1792
1793 private Bind generateBindRequest(final Collection<String> bindFeatures) {
1794 Log.d(Config.LOGTAG, "inline bind features: " + bindFeatures);
1795 final var bind = new Bind();
1796 bind.setTag(BuildConfig.APP_NAME);
1797 if (bindFeatures.contains(Namespace.CARBONS)) {
1798 bind.addExtension(new im.conversations.android.xmpp.model.carbons.Enable());
1799 }
1800 if (bindFeatures.contains(Namespace.STREAM_MANAGEMENT)) {
1801 bind.addExtension(new Enable());
1802 }
1803 return bind;
1804 }
1805
1806 private void register() {
1807 final String preAuth = account.getKey(Account.KEY_PRE_AUTH_REGISTRATION_TOKEN);
1808 if (preAuth != null && features.invite()) {
1809 final Iq preAuthRequest = new Iq(Iq.Type.SET);
1810 preAuthRequest.addChild("preauth", Namespace.PARS).setAttribute("token", preAuth);
1811 sendUnmodifiedIqPacket(
1812 preAuthRequest,
1813 (response) -> {
1814 if (response.getType() == Iq.Type.RESULT) {
1815 sendRegistryRequest();
1816 } else {
1817 final String error = response.getErrorCondition();
1818 Log.d(
1819 Config.LOGTAG,
1820 account.getJid().asBareJid()
1821 + ": failed to pre auth. "
1822 + error);
1823 throw new StateChangingError(Account.State.REGISTRATION_INVALID_TOKEN);
1824 }
1825 },
1826 true);
1827 } else {
1828 sendRegistryRequest();
1829 }
1830 }
1831
1832 private void sendRegistryRequest() {
1833 final Iq register = new Iq(Iq.Type.GET);
1834 register.query(Namespace.REGISTER);
1835 register.setTo(account.getDomain());
1836 sendUnmodifiedIqPacket(
1837 register,
1838 (packet) -> {
1839 if (packet.getType() == Iq.Type.TIMEOUT) {
1840 return;
1841 }
1842 if (packet.getType() == Iq.Type.ERROR) {
1843 throw new StateChangingError(Account.State.REGISTRATION_FAILED);
1844 }
1845 final Element query = packet.query(Namespace.REGISTER);
1846 if (query.hasChild("username") && (query.hasChild("password"))) {
1847 final Iq register1 = new Iq(Iq.Type.SET);
1848 final Element username =
1849 new Element("username").setContent(account.getUsername());
1850 final Element password =
1851 new Element("password").setContent(account.getPassword());
1852 register1.query(Namespace.REGISTER).addChild(username);
1853 register1.query().addChild(password);
1854 register1.setFrom(account.getJid().asBareJid());
1855 sendUnmodifiedIqPacket(register1, this::processRegistrationResponse, true);
1856 } else if (query.hasChild("x", Namespace.DATA)) {
1857 final Data data = Data.parse(query.findChild("x", Namespace.DATA));
1858 final Element blob = query.findChild("data", "urn:xmpp:bob");
1859 final String id = packet.getId();
1860 InputStream is;
1861 if (blob != null) {
1862 try {
1863 final String base64Blob = blob.getContent();
1864 final byte[] strBlob = Base64.decode(base64Blob, Base64.DEFAULT);
1865 is = new ByteArrayInputStream(strBlob);
1866 } catch (Exception e) {
1867 is = null;
1868 }
1869 } else {
1870 final boolean useTor =
1871 mXmppConnectionService.useTorToConnect() || account.isOnion();
1872 try {
1873 final String url = data.getValue("url");
1874 final String fallbackUrl = data.getValue("captcha-fallback-url");
1875 if (url != null) {
1876 is = HttpConnectionManager.open(url, useTor);
1877 } else if (fallbackUrl != null) {
1878 is = HttpConnectionManager.open(fallbackUrl, useTor);
1879 } else {
1880 is = null;
1881 }
1882 } catch (final IOException e) {
1883 Log.d(
1884 Config.LOGTAG,
1885 account.getJid().asBareJid() + ": unable to fetch captcha",
1886 e);
1887 is = null;
1888 }
1889 }
1890
1891 if (is != null) {
1892 Bitmap captcha = BitmapFactory.decodeStream(is);
1893 try {
1894 if (mXmppConnectionService.displayCaptchaRequest(
1895 account, id, data, captcha)) {
1896 return;
1897 }
1898 } catch (Exception e) {
1899 throw new StateChangingError(Account.State.REGISTRATION_FAILED);
1900 }
1901 }
1902 throw new StateChangingError(Account.State.REGISTRATION_FAILED);
1903 } else if (query.hasChild("instructions")
1904 || query.hasChild("x", Namespace.OOB)) {
1905 final String instructions = query.findChildContent("instructions");
1906 final Element oob = query.findChild("x", Namespace.OOB);
1907 final String url = oob == null ? null : oob.findChildContent("url");
1908 if (url != null) {
1909 setAccountCreationFailed(url);
1910 } else if (instructions != null) {
1911 final Matcher matcher = Patterns.AUTOLINK_WEB_URL.matcher(instructions);
1912 if (matcher.find()) {
1913 setAccountCreationFailed(
1914 instructions.substring(matcher.start(), matcher.end()));
1915 }
1916 }
1917 throw new StateChangingError(Account.State.REGISTRATION_FAILED);
1918 }
1919 },
1920 true);
1921 }
1922
1923 public void sendCreateAccountWithCaptchaPacket(final String id, final Data data) {
1924 final Iq request = IqGenerator.generateCreateAccountWithCaptcha(account, id, data);
1925 this.sendUnmodifiedIqPacket(request, this::processRegistrationResponse, true);
1926 }
1927
1928 private void processRegistrationResponse(final Iq response) {
1929 if (response.getType() == Iq.Type.RESULT) {
1930 account.setOption(Account.OPTION_REGISTER, false);
1931 Log.d(
1932 Config.LOGTAG,
1933 account.getJid().asBareJid()
1934 + ": successfully registered new account on server");
1935 throw new StateChangingError(Account.State.REGISTRATION_SUCCESSFUL);
1936 } else {
1937 final Account.State state = getRegistrationFailedState(response);
1938 throw new StateChangingError(state);
1939 }
1940 }
1941
1942 @NonNull
1943 private static Account.State getRegistrationFailedState(final Iq response) {
1944 final List<String> PASSWORD_TOO_WEAK_MESSAGES =
1945 Arrays.asList("The password is too weak", "Please use a longer password.");
1946 final var error = response.getError();
1947 final var condition = error == null ? null : error.getCondition();
1948 final Account.State state;
1949 if (condition instanceof Condition.Conflict) {
1950 state = Account.State.REGISTRATION_CONFLICT;
1951 } else if (condition instanceof Condition.ResourceConstraint) {
1952 state = Account.State.REGISTRATION_PLEASE_WAIT;
1953 } else if (condition instanceof Condition.NotAcceptable
1954 && PASSWORD_TOO_WEAK_MESSAGES.contains(error.getTextAsString())) {
1955 state = Account.State.REGISTRATION_PASSWORD_TOO_WEAK;
1956 } else {
1957 state = Account.State.REGISTRATION_FAILED;
1958 }
1959 return state;
1960 }
1961
1962 private void setAccountCreationFailed(final String url) {
1963 final HttpUrl httpUrl = url == null ? null : HttpUrl.parse(url);
1964 if (httpUrl != null && httpUrl.isHttps()) {
1965 this.redirectionUrl = httpUrl;
1966 throw new StateChangingError(Account.State.REGISTRATION_WEB);
1967 }
1968 throw new StateChangingError(Account.State.REGISTRATION_FAILED);
1969 }
1970
1971 public HttpUrl getRedirectionUrl() {
1972 return this.redirectionUrl;
1973 }
1974
1975 public void resetEverything() {
1976 resetAttemptCount(true);
1977 resetStreamId();
1978 clearIqCallbacks();
1979 synchronized (this.mStanzaQueue) {
1980 this.stanzasSent = 0;
1981 this.mStanzaQueue.clear();
1982 }
1983 this.redirectionUrl = null;
1984 synchronized (this.disco) {
1985 disco.clear();
1986 }
1987 synchronized (this.commands) {
1988 this.commands.clear();
1989 }
1990 this.loginInfo = null;
1991 }
1992
1993 private void sendBindRequest() {
1994 try {
1995 mXmppConnectionService.restoredFromDatabaseLatch.await();
1996 } catch (InterruptedException e) {
1997 Log.d(
1998 Config.LOGTAG,
1999 account.getJid().asBareJid()
2000 + ": interrupted while waiting for DB restore during bind");
2001 return;
2002 }
2003 clearIqCallbacks();
2004 if (account.getJid().isBareJid()) {
2005 account.setResource(createNewResource());
2006 } else {
2007 fixResource(mXmppConnectionService, account);
2008 }
2009 final Iq iq = new Iq(Iq.Type.SET);
2010 final String resource =
2011 Config.USE_RANDOM_RESOURCE_ON_EVERY_BIND
2012 ? CryptoHelper.random(9)
2013 : account.getResource();
2014 iq.addExtension(new im.conversations.android.xmpp.model.bind.Bind()).setResource(resource);
2015 this.sendUnmodifiedIqPacket(
2016 iq,
2017 (packet) -> {
2018 if (packet.getType() == Iq.Type.TIMEOUT) {
2019 return;
2020 }
2021 final var bind =
2022 packet.getExtension(
2023 im.conversations.android.xmpp.model.bind.Bind.class);
2024 if (bind != null && packet.getType() == Iq.Type.RESULT) {
2025 isBound = true;
2026 final Jid assignedJid = bind.getJid();
2027 checkAssignedDomain(assignedJid);
2028 if (account.setJid(assignedJid)) {
2029 Log.d(
2030 Config.LOGTAG,
2031 account.getJid().asBareJid()
2032 + ": jid changed during bind. updating database");
2033 mXmppConnectionService.databaseBackend.updateAccount(account);
2034 }
2035 if (streamFeatures.hasChild("session")
2036 && !streamFeatures.findChild("session").hasChild("optional")) {
2037 sendStartSession();
2038 } else {
2039 final boolean waitForDisco = enableStreamManagement();
2040 sendPostBindInitialization(waitForDisco, false);
2041 }
2042 } else {
2043 Log.d(
2044 Config.LOGTAG,
2045 account.getJid()
2046 + ": disconnecting because of bind failure ("
2047 + packet);
2048 final var error = packet.getError();
2049 // TODO error.is(Condition)
2050 if (packet.getType() == Iq.Type.ERROR
2051 && error != null
2052 && error.hasChild("conflict")) {
2053 account.setResource(createNewResource());
2054 }
2055 throw new StateChangingError(Account.State.BIND_FAILURE);
2056 }
2057 },
2058 true);
2059 }
2060
2061 private void clearIqCallbacks() {
2062 final Iq failurePacket = new Iq(Iq.Type.TIMEOUT);
2063 final ArrayList<Consumer<Iq>> callbacks = new ArrayList<>();
2064 synchronized (this.packetCallbacks) {
2065 if (this.packetCallbacks.isEmpty()) {
2066 return;
2067 }
2068 Log.d(
2069 Config.LOGTAG,
2070 account.getJid().asBareJid()
2071 + ": clearing "
2072 + this.packetCallbacks.size()
2073 + " iq callbacks");
2074 final var iterator = this.packetCallbacks.values().iterator();
2075 while (iterator.hasNext()) {
2076 final var entry = iterator.next();
2077 if (entry.second.second == null || entry.second.second.cancel(false)) {
2078 callbacks.add(entry.second.first);
2079 }
2080 iterator.remove();
2081 }
2082 }
2083 for (final var callback : callbacks) {
2084 try {
2085 callback.accept(failurePacket);
2086 } catch (StateChangingError error) {
2087 Log.d(
2088 Config.LOGTAG,
2089 account.getJid().asBareJid()
2090 + ": caught StateChangingError("
2091 + error.state.toString()
2092 + ") while clearing callbacks");
2093 // ignore
2094 }
2095 }
2096 Log.d(
2097 Config.LOGTAG,
2098 account.getJid().asBareJid()
2099 + ": done clearing iq callbacks. "
2100 + this.packetCallbacks.size()
2101 + " left");
2102 }
2103
2104 public void sendDiscoTimeout() {
2105 if (mWaitForDisco.compareAndSet(true, false)) {
2106 Log.d(
2107 Config.LOGTAG,
2108 account.getJid().asBareJid() + ": finalizing bind after disco timeout");
2109 finalizeBind();
2110 }
2111 }
2112
2113 private void sendStartSession() {
2114 Log.d(
2115 Config.LOGTAG,
2116 account.getJid().asBareJid() + ": sending legacy session to outdated server");
2117 final Iq startSession = new Iq(Iq.Type.SET);
2118 startSession.addChild("session", "urn:ietf:params:xml:ns:xmpp-session");
2119 this.sendUnmodifiedIqPacket(
2120 startSession,
2121 (packet) -> {
2122 if (packet.getType() == Iq.Type.RESULT) {
2123 final boolean waitForDisco = enableStreamManagement();
2124 sendPostBindInitialization(waitForDisco, false);
2125 } else if (packet.getType() != Iq.Type.TIMEOUT) {
2126 throw new StateChangingError(Account.State.SESSION_FAILURE);
2127 }
2128 },
2129 true);
2130 }
2131
2132 private boolean enableStreamManagement() {
2133 final boolean streamManagement = this.streamFeatures.streamManagement();
2134 if (streamManagement) {
2135 synchronized (this.mStanzaQueue) {
2136 final var enable = new Enable();
2137 tagWriter.writeStanzaAsync(enable);
2138 stanzasSent = 0;
2139 mStanzaQueue.clear();
2140 }
2141 return true;
2142 } else {
2143 return false;
2144 }
2145 }
2146
2147 private void sendPostBindInitialization(
2148 final boolean waitForDisco, final boolean carbonsEnabled) {
2149 features.carbonsEnabled = carbonsEnabled;
2150 features.blockListRequested = false;
2151 synchronized (this.disco) {
2152 this.disco.clear();
2153 }
2154 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": starting service discovery");
2155 mPendingServiceDiscoveries.set(0);
2156 mWaitForDisco.set(waitForDisco);
2157 lastDiscoStarted = SystemClock.elapsedRealtime();
2158 mXmppConnectionService.scheduleWakeUpCall(
2159 Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
2160 final Element caps = streamFeatures.findChild("c");
2161 final String hash = caps == null ? null : caps.getAttribute("hash");
2162 final String ver = caps == null ? null : caps.getAttribute("ver");
2163 ServiceDiscoveryResult discoveryResult = null;
2164 if (hash != null && ver != null) {
2165 discoveryResult =
2166 mXmppConnectionService.getCachedServiceDiscoveryResult(new Pair<>(hash, ver));
2167 }
2168 final boolean requestDiscoItemsFirst =
2169 !account.isOptionSet(Account.OPTION_LOGGED_IN_SUCCESSFULLY);
2170 if (requestDiscoItemsFirst) {
2171 sendServiceDiscoveryItems(account.getDomain());
2172 }
2173 if (discoveryResult == null) {
2174 sendServiceDiscoveryInfo(account.getDomain());
2175 } else {
2176 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": server caps came from cache");
2177 disco.put(account.getDomain(), discoveryResult);
2178 }
2179 final var features = getFeatures();
2180 if (!features.bind2()) {
2181 discoverMamPreferences();
2182 }
2183 sendServiceDiscoveryInfo(account.getJid().asBareJid());
2184 if (!requestDiscoItemsFirst) {
2185 sendServiceDiscoveryItems(account.getDomain());
2186 }
2187
2188 if (!mWaitForDisco.get()) {
2189 finalizeBind();
2190 }
2191 this.lastSessionStarted = SystemClock.elapsedRealtime();
2192 }
2193
2194 private void sendServiceDiscoveryInfo(final Jid jid) {
2195 mPendingServiceDiscoveries.incrementAndGet();
2196 final Iq iq = new Iq(Iq.Type.GET);
2197 iq.setTo(jid);
2198 iq.query("http://jabber.org/protocol/disco#info");
2199 this.sendIqPacket(
2200 iq,
2201 (packet) -> {
2202 if (packet.getType() == Iq.Type.RESULT) {
2203 boolean advancedStreamFeaturesLoaded;
2204 synchronized (XmppConnection.this.disco) {
2205 ServiceDiscoveryResult result = new ServiceDiscoveryResult(packet);
2206 if (jid.equals(account.getDomain())) {
2207 mXmppConnectionService.databaseBackend.insertDiscoveryResult(
2208 result);
2209 }
2210 disco.put(jid, result);
2211 advancedStreamFeaturesLoaded =
2212 disco.containsKey(account.getDomain())
2213 && disco.containsKey(account.getJid().asBareJid());
2214 }
2215 if (advancedStreamFeaturesLoaded
2216 && (jid.equals(account.getDomain())
2217 || jid.equals(account.getJid().asBareJid()))) {
2218 enableAdvancedStreamFeatures();
2219 }
2220 } else if (packet.getType() == Iq.Type.ERROR) {
2221 Log.d(
2222 Config.LOGTAG,
2223 account.getJid().asBareJid()
2224 + ": could not query disco info for "
2225 + jid.toString());
2226 final boolean serverOrAccount =
2227 jid.equals(account.getDomain())
2228 || jid.equals(account.getJid().asBareJid());
2229 final boolean advancedStreamFeaturesLoaded;
2230 if (serverOrAccount) {
2231 synchronized (XmppConnection.this.disco) {
2232 disco.put(jid, ServiceDiscoveryResult.empty());
2233 advancedStreamFeaturesLoaded =
2234 disco.containsKey(account.getDomain())
2235 && disco.containsKey(account.getJid().asBareJid());
2236 }
2237 } else {
2238 advancedStreamFeaturesLoaded = false;
2239 }
2240 if (advancedStreamFeaturesLoaded) {
2241 enableAdvancedStreamFeatures();
2242 }
2243 }
2244 if (packet.getType() != Iq.Type.TIMEOUT) {
2245 if (mPendingServiceDiscoveries.decrementAndGet() == 0
2246 && mWaitForDisco.compareAndSet(true, false)) {
2247 finalizeBind();
2248 }
2249 }
2250 });
2251 }
2252
2253 private void discoverMamPreferences() {
2254 final Iq request = new Iq(Iq.Type.GET);
2255 request.addChild("prefs", MessageArchiveService.Version.MAM_2.namespace);
2256 sendIqPacket(
2257 request,
2258 (response) -> {
2259 if (response.getType() == Iq.Type.RESULT) {
2260 Element prefs =
2261 response.findChild(
2262 "prefs", MessageArchiveService.Version.MAM_2.namespace);
2263 isMamPreferenceAlways =
2264 "always"
2265 .equals(
2266 prefs == null
2267 ? null
2268 : prefs.getAttribute("default"));
2269 }
2270 });
2271 }
2272
2273 private void discoverCommands() {
2274 final Iq request = new Iq(Iq.Type.GET);
2275 request.setTo(account.getDomain());
2276 request.addChild("query", Namespace.DISCO_ITEMS).setAttribute("node", Namespace.COMMANDS);
2277 sendIqPacket(
2278 request,
2279 (response) -> {
2280 if (response.getType() == Iq.Type.RESULT) {
2281 final Element query = response.findChild("query", Namespace.DISCO_ITEMS);
2282 if (query == null) {
2283 return;
2284 }
2285 final HashMap<String, Jid> commands = new HashMap<>();
2286 for (final Element child : query.getChildren()) {
2287 if ("item".equals(child.getName())) {
2288 final String node = child.getAttribute("node");
2289 final Jid jid = child.getAttributeAsJid("jid");
2290 if (node != null && jid != null) {
2291 commands.put(node, jid);
2292 }
2293 }
2294 }
2295 synchronized (this.commands) {
2296 this.commands.clear();
2297 this.commands.putAll(commands);
2298 }
2299 }
2300 });
2301 }
2302
2303 public boolean isMamPreferenceAlways() {
2304 return isMamPreferenceAlways;
2305 }
2306
2307 private void finalizeBind() {
2308 this.offlineMessagesRetrieved = false;
2309 this.bindListener.run();
2310 this.changeStatusToOnline();
2311 }
2312
2313 private void enableAdvancedStreamFeatures() {
2314 if (getFeatures().blocking() && !features.blockListRequested) {
2315 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": Requesting block list");
2316 this.sendIqPacket(getIqGenerator().generateGetBlockList(), unregisteredIqListener);
2317 }
2318 for (final OnAdvancedStreamFeaturesLoaded listener :
2319 advancedStreamFeaturesLoadedListeners) {
2320 listener.onAdvancedStreamFeaturesAvailable(account);
2321 }
2322 if (getFeatures().carbons() && !features.carbonsEnabled) {
2323 sendEnableCarbons();
2324 }
2325 if (getFeatures().commands()) {
2326 discoverCommands();
2327 }
2328 }
2329
2330 private void sendServiceDiscoveryItems(final Jid server) {
2331 mPendingServiceDiscoveries.incrementAndGet();
2332 final Iq iq = new Iq(Iq.Type.GET);
2333 iq.setTo(server.getDomain());
2334 iq.query("http://jabber.org/protocol/disco#items");
2335 this.sendIqPacket(
2336 iq,
2337 (packet) -> {
2338 if (packet.getType() == Iq.Type.RESULT) {
2339 final HashSet<Jid> items = new HashSet<>();
2340 final List<Element> elements = packet.query().getChildren();
2341 for (final Element element : elements) {
2342 if (element.getName().equals("item")) {
2343 final Jid jid =
2344 InvalidJid.getNullForInvalid(
2345 element.getAttributeAsJid("jid"));
2346 if (jid != null && !jid.equals(account.getDomain())) {
2347 items.add(jid);
2348 }
2349 }
2350 }
2351 for (Jid jid : items) {
2352 sendServiceDiscoveryInfo(jid);
2353 }
2354 } else {
2355 Log.d(
2356 Config.LOGTAG,
2357 account.getJid().asBareJid()
2358 + ": could not query disco items of "
2359 + server);
2360 }
2361 if (packet.getType() != Iq.Type.TIMEOUT) {
2362 if (mPendingServiceDiscoveries.decrementAndGet() == 0
2363 && mWaitForDisco.compareAndSet(true, false)) {
2364 finalizeBind();
2365 }
2366 }
2367 });
2368 }
2369
2370 private void sendEnableCarbons() {
2371 final Iq iq = new Iq(Iq.Type.SET);
2372 iq.addChild("enable", Namespace.CARBONS);
2373 this.sendIqPacket(
2374 iq,
2375 (packet) -> {
2376 if (packet.getType() == Iq.Type.RESULT) {
2377 Log.d(
2378 Config.LOGTAG,
2379 account.getJid().asBareJid() + ": successfully enabled carbons");
2380 features.carbonsEnabled = true;
2381 } else {
2382 Log.d(
2383 Config.LOGTAG,
2384 account.getJid().asBareJid()
2385 + ": could not enable carbons "
2386 + packet);
2387 }
2388 });
2389 }
2390
2391 private void processStreamError(final Tag currentTag) throws IOException {
2392 final Element streamError = tagReader.readElement(currentTag);
2393 if (streamError == null) {
2394 return;
2395 }
2396 if (streamError.hasChild("conflict")) {
2397 final var loginInfo = this.loginInfo;
2398 if (loginInfo != null && loginInfo.saslVersion == SaslMechanism.Version.SASL_2) {
2399 this.appSettings.resetInstallationId();
2400 }
2401 account.setResource(createNewResource());
2402 Log.d(
2403 Config.LOGTAG,
2404 account.getJid().asBareJid()
2405 + ": switching resource due to conflict ("
2406 + account.getResource()
2407 + ")");
2408 throw new IOException("Closed stream due to resource conflict");
2409 } else if (streamError.hasChild("host-unknown")) {
2410 throw new StateChangingException(Account.State.HOST_UNKNOWN);
2411 } else if (streamError.hasChild("policy-violation")) {
2412 this.lastConnect = SystemClock.elapsedRealtime();
2413 final String text = streamError.findChildContent("text");
2414 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": policy violation. " + text);
2415 failPendingMessages(text);
2416 throw new StateChangingException(Account.State.POLICY_VIOLATION);
2417 } else if (streamError.hasChild("see-other-host")) {
2418 final String seeOtherHost = streamError.findChildContent("see-other-host");
2419 final Resolver.Result currentResolverResult = this.currentResolverResult;
2420 if (Strings.isNullOrEmpty(seeOtherHost) || currentResolverResult == null) {
2421 Log.d(
2422 Config.LOGTAG,
2423 account.getJid().asBareJid() + ": stream error " + streamError);
2424 throw new StateChangingException(Account.State.STREAM_ERROR);
2425 }
2426 Log.d(
2427 Config.LOGTAG,
2428 account.getJid().asBareJid()
2429 + ": see other host: "
2430 + seeOtherHost
2431 + " "
2432 + currentResolverResult);
2433 final Resolver.Result seeOtherResult = currentResolverResult.seeOtherHost(seeOtherHost);
2434 if (seeOtherResult != null) {
2435 this.seeOtherHostResolverResult = seeOtherResult;
2436 throw new StateChangingException(Account.State.SEE_OTHER_HOST);
2437 } else {
2438 throw new StateChangingException(Account.State.STREAM_ERROR);
2439 }
2440 } else {
2441 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": stream error " + streamError);
2442 throw new StateChangingException(Account.State.STREAM_ERROR);
2443 }
2444 }
2445
2446 private void failPendingMessages(final String error) {
2447 synchronized (this.mStanzaQueue) {
2448 for (int i = 0; i < mStanzaQueue.size(); ++i) {
2449 final Stanza stanza = mStanzaQueue.valueAt(i);
2450 if (stanza instanceof im.conversations.android.xmpp.model.stanza.Message packet) {
2451 final String id = packet.getId();
2452 final Jid to = packet.getTo();
2453 mXmppConnectionService.markMessage(
2454 account, to.asBareJid(), id, Message.STATUS_SEND_FAILED, error);
2455 }
2456 }
2457 }
2458 }
2459
2460 private boolean establishStream(final SSLSockets.Version sslVersion)
2461 throws IOException, InterruptedException {
2462 final boolean secureConnection = sslVersion != SSLSockets.Version.NONE;
2463 final SaslMechanism quickStartMechanism;
2464 if (secureConnection) {
2465 quickStartMechanism =
2466 SaslMechanism.ensureAvailable(
2467 account.getQuickStartMechanism(),
2468 sslVersion,
2469 appSettings.isRequireChannelBinding());
2470 } else {
2471 quickStartMechanism = null;
2472 }
2473 if (secureConnection
2474 && Config.QUICKSTART_ENABLED
2475 && quickStartMechanism != null
2476 && account.isOptionSet(Account.OPTION_QUICKSTART_AVAILABLE)) {
2477 mXmppConnectionService.restoredFromDatabaseLatch.await();
2478 this.loginInfo =
2479 new LoginInfo(
2480 quickStartMechanism,
2481 SaslMechanism.Version.SASL_2,
2482 Bind2.QUICKSTART_FEATURES);
2483 final boolean usingFast = quickStartMechanism instanceof HashedToken;
2484 final AuthenticationRequest authenticate =
2485 generateAuthenticationRequest(
2486 quickStartMechanism.getClientFirstMessage(sslSocketOrNull(this.socket)),
2487 usingFast);
2488 authenticate.setMechanism(quickStartMechanism);
2489 sendStartStream(true, false);
2490 synchronized (this.mStanzaQueue) {
2491 this.stanzasSentBeforeAuthentication = this.stanzasSent;
2492 tagWriter.writeElement(authenticate);
2493 }
2494 Log.d(
2495 Config.LOGTAG,
2496 account.getJid().toString()
2497 + ": quick start with "
2498 + quickStartMechanism.getMechanism());
2499 return true;
2500 } else {
2501 sendStartStream(secureConnection, true);
2502 return false;
2503 }
2504 }
2505
2506 private void sendStartStream(final boolean from, final boolean flush) throws IOException {
2507 final Tag stream = Tag.start("stream:stream");
2508 stream.setAttribute("to", account.getServer());
2509 if (from) {
2510 stream.setAttribute("from", account.getJid().asBareJid().toEscapedString());
2511 }
2512 stream.setAttribute("version", "1.0");
2513 stream.setAttribute("xml:lang", LocalizedContent.STREAM_LANGUAGE);
2514 stream.setAttribute("xmlns", Namespace.JABBER_CLIENT);
2515 stream.setAttribute("xmlns:stream", Namespace.STREAMS);
2516 tagWriter.writeTag(stream, flush);
2517 }
2518
2519 private static String createNewResource() {
2520 return String.format("%s.%s", BuildConfig.APP_NAME, CryptoHelper.random(3));
2521 }
2522
2523 public String sendIqPacket(final Iq packet, final Consumer<Iq> callback) {
2524 return sendIqPacket(packet, callback, null);
2525 }
2526
2527 public String sendIqPacket(final Iq packet, final Consumer<Iq> callback, Long timeout) {
2528 packet.setFrom(account.getJid());
2529 return this.sendUnmodifiedIqPacket(packet, callback, false, timeout);
2530 }
2531
2532 public String sendUnmodifiedIqPacket(final Iq packet, final Consumer<Iq> callback, boolean force) {
2533 return sendUnmodifiedIqPacket(packet, callback, force, null);
2534 }
2535
2536 public synchronized String sendUnmodifiedIqPacket(
2537 final Iq packet, final Consumer<Iq> callback, boolean force, Long timeout) {
2538 // TODO if callback != null verify that type is get or set
2539 if (packet.getId() == null) {
2540 packet.setId(CryptoHelper.random(9));
2541 }
2542 if (callback != null) {
2543 synchronized (this.packetCallbacks) {
2544 ScheduledFuture timeoutFuture = null;
2545 if (timeout != null) {
2546 timeoutFuture = SCHEDULER.schedule(() -> {
2547 synchronized (this.packetCallbacks) {
2548 final var failurePacket = new Iq(Iq.Type.TIMEOUT);
2549 final var removedCallback = packetCallbacks.remove(packet.getId());
2550 if (removedCallback != null) removedCallback.second.first.accept(failurePacket);
2551 }
2552 }, timeout, TimeUnit.SECONDS);
2553 }
2554 packetCallbacks.put(packet.getId(), new Pair<>(packet, new Pair<>(callback, timeoutFuture)));
2555 }
2556 }
2557 this.sendPacket(packet, force);
2558 return packet.getId();
2559 }
2560
2561 public void sendMessagePacket(final im.conversations.android.xmpp.model.stanza.Message packet) {
2562 this.sendPacket(packet);
2563 }
2564
2565 public void sendPresencePacket(final Presence packet) {
2566 this.sendPacket(packet);
2567 }
2568
2569 private synchronized void sendPacket(final StreamElement packet) {
2570 sendPacket(packet, false);
2571 }
2572
2573 private synchronized void sendPacket(final StreamElement packet, final boolean force) {
2574 if (stanzasSent == Integer.MAX_VALUE) {
2575 resetStreamId();
2576 disconnect(true);
2577 return;
2578 }
2579 synchronized (this.mStanzaQueue) {
2580 if (force || isBound) {
2581 tagWriter.writeStanzaAsync(packet);
2582 } else {
2583 Log.d(
2584 Config.LOGTAG,
2585 account.getJid().asBareJid()
2586 + " do not write stanza to unbound stream "
2587 + packet.toString());
2588 }
2589 if (packet instanceof Stanza stanza) {
2590 if (this.mStanzaQueue.size() != 0) {
2591 int currentHighestKey = this.mStanzaQueue.keyAt(this.mStanzaQueue.size() - 1);
2592 if (currentHighestKey != stanzasSent) {
2593 throw new AssertionError("Stanza count messed up");
2594 }
2595 }
2596
2597 ++stanzasSent;
2598 if (Config.EXTENDED_SM_LOGGING) {
2599 Log.d(
2600 Config.LOGTAG,
2601 account.getJid().asBareJid()
2602 + ": counting outbound "
2603 + packet.getName()
2604 + " as #"
2605 + stanzasSent);
2606 }
2607 this.mStanzaQueue.append(stanzasSent, stanza);
2608 if (stanza instanceof im.conversations.android.xmpp.model.stanza.Message
2609 && stanza.getId() != null
2610 && inSmacksSession) {
2611 if (Config.EXTENDED_SM_LOGGING) {
2612 Log.d(
2613 Config.LOGTAG,
2614 account.getJid().asBareJid()
2615 + ": requesting ack for message stanza #"
2616 + stanzasSent);
2617 }
2618 tagWriter.writeStanzaAsync(new Request());
2619 }
2620 }
2621 }
2622 }
2623
2624 public void sendPing() {
2625 if (!r()) {
2626 final Iq iq = new Iq(Iq.Type.GET);
2627 iq.setFrom(account.getJid());
2628 iq.addChild("ping", Namespace.PING);
2629 this.sendIqPacket(iq, null);
2630 }
2631 this.lastPingSent = SystemClock.elapsedRealtime();
2632 }
2633
2634 public void setOnJinglePacketReceivedListener(final OnJinglePacketReceived listener) {
2635 this.jingleListener = listener;
2636 }
2637
2638 public void setOnStatusChangedListener(final OnStatusChanged listener) {
2639 this.statusListener = listener;
2640 }
2641
2642 public void setOnMessageAcknowledgeListener(final OnMessageAcknowledged listener) {
2643 this.acknowledgedListener = listener;
2644 }
2645
2646 public void addOnAdvancedStreamFeaturesAvailableListener(
2647 final OnAdvancedStreamFeaturesLoaded listener) {
2648 this.advancedStreamFeaturesLoadedListeners.add(listener);
2649 }
2650
2651 private void forceCloseSocket() {
2652 FileBackend.close(this.socket);
2653 FileBackend.close(this.tagReader);
2654 }
2655
2656 public void interrupt() {
2657 if (this.mThread != null) {
2658 this.mThread.interrupt();
2659 }
2660 }
2661
2662 public void disconnect(final boolean force) {
2663 interrupt();
2664 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": disconnecting force=" + force);
2665 if (force) {
2666 forceCloseSocket();
2667 } else {
2668 final TagWriter currentTagWriter = this.tagWriter;
2669 if (currentTagWriter.isActive()) {
2670 currentTagWriter.finish();
2671 final Socket currentSocket = this.socket;
2672 final CountDownLatch streamCountDownLatch = this.mStreamCountDownLatch;
2673 try {
2674 currentTagWriter.await(1, TimeUnit.SECONDS);
2675 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": closing stream");
2676 currentTagWriter.writeTag(Tag.end("stream:stream"));
2677 if (streamCountDownLatch != null) {
2678 if (streamCountDownLatch.await(1, TimeUnit.SECONDS)) {
2679 Log.d(
2680 Config.LOGTAG,
2681 account.getJid().asBareJid() + ": remote ended stream");
2682 } else {
2683 Log.d(
2684 Config.LOGTAG,
2685 account.getJid().asBareJid()
2686 + ": remote has not closed socket. force closing");
2687 }
2688 }
2689 } catch (InterruptedException e) {
2690 Log.d(
2691 Config.LOGTAG,
2692 account.getJid().asBareJid()
2693 + ": interrupted while gracefully closing stream");
2694 } catch (final IOException e) {
2695 Log.d(
2696 Config.LOGTAG,
2697 account.getJid().asBareJid()
2698 + ": io exception during disconnect ("
2699 + e.getMessage()
2700 + ")");
2701 } finally {
2702 FileBackend.close(currentSocket);
2703 }
2704 } else {
2705 forceCloseSocket();
2706 }
2707 }
2708 }
2709
2710 private void resetStreamId() {
2711 this.streamId = null;
2712 this.boundStreamFeatures = null;
2713 }
2714
2715 private List<Entry<Jid, ServiceDiscoveryResult>> findDiscoItemsByFeature(final String feature) {
2716 synchronized (this.disco) {
2717 final List<Entry<Jid, ServiceDiscoveryResult>> items = new ArrayList<>();
2718 for (final Entry<Jid, ServiceDiscoveryResult> cursor : this.disco.entrySet()) {
2719 if (cursor.getValue().getFeatures().contains(feature)) {
2720 items.add(cursor);
2721 }
2722 }
2723 return items;
2724 }
2725 }
2726
2727 public Jid findDiscoItemByFeature(final String feature) {
2728 final List<Entry<Jid, ServiceDiscoveryResult>> items = findDiscoItemsByFeature(feature);
2729 if (items.size() >= 1) {
2730 return items.get(0).getKey();
2731 }
2732 return null;
2733 }
2734
2735 public boolean r() {
2736 if (getFeatures().sm()) {
2737 this.tagWriter.writeStanzaAsync(new Request());
2738 return true;
2739 } else {
2740 return false;
2741 }
2742 }
2743
2744 public List<String> getMucServersWithholdAccount() {
2745 final List<String> servers = getMucServers();
2746 servers.remove(account.getDomain().toEscapedString());
2747 return servers;
2748 }
2749
2750 public List<String> getMucServers() {
2751 List<String> servers = new ArrayList<>();
2752 synchronized (this.disco) {
2753 for (final Entry<Jid, ServiceDiscoveryResult> cursor : disco.entrySet()) {
2754 final ServiceDiscoveryResult value = cursor.getValue();
2755 if (value.getFeatures().contains("http://jabber.org/protocol/muc")
2756 && value.hasIdentity("conference", "text")
2757 && !value.getFeatures().contains("jabber:iq:gateway")
2758 && !value.hasIdentity("conference", "irc")) {
2759 servers.add(cursor.getKey().toString());
2760 }
2761 }
2762 }
2763 return servers;
2764 }
2765
2766 public String getMucServer() {
2767 List<String> servers = getMucServers();
2768 return servers.size() > 0 ? servers.get(0) : null;
2769 }
2770
2771 public int getTimeToNextAttempt(final boolean aggressive) {
2772 final int interval;
2773 if (aggressive) {
2774 interval = Math.min((int) (3 * Math.pow(1.3, attempt)), 60);
2775 } else {
2776 final int additionalTime =
2777 account.getLastErrorStatus() == Account.State.POLICY_VIOLATION ? 3 : 0;
2778 interval = Math.min((int) (25 * Math.pow(1.3, (additionalTime + attempt))), 300);
2779 }
2780 final int secondsSinceLast =
2781 (int) ((SystemClock.elapsedRealtime() - this.lastConnect) / 1000);
2782 return interval - secondsSinceLast;
2783 }
2784
2785 public int getAttempt() {
2786 return this.attempt;
2787 }
2788
2789 public Features getFeatures() {
2790 return this.features;
2791 }
2792
2793 public long getLastSessionEstablished() {
2794 final long diff = SystemClock.elapsedRealtime() - this.lastSessionStarted;
2795 return System.currentTimeMillis() - diff;
2796 }
2797
2798 public long getLastConnect() {
2799 return this.lastConnect;
2800 }
2801
2802 public long getLastPingSent() {
2803 return this.lastPingSent;
2804 }
2805
2806 public long getLastDiscoStarted() {
2807 return this.lastDiscoStarted;
2808 }
2809
2810 public long getLastPacketReceived() {
2811 return this.lastPacketReceived;
2812 }
2813
2814 public void sendActive() {
2815 this.sendPacket(new Active());
2816 }
2817
2818 public void sendInactive() {
2819 this.sendPacket(new Inactive());
2820 }
2821
2822 public void resetAttemptCount(boolean resetConnectTime) {
2823 this.attempt = 0;
2824 if (resetConnectTime) {
2825 this.lastConnect = 0;
2826 }
2827 }
2828
2829 public void setInteractive(boolean interactive) {
2830 this.mInteractive = interactive;
2831 }
2832
2833 private IqGenerator getIqGenerator() {
2834 return mXmppConnectionService.getIqGenerator();
2835 }
2836
2837 public void trackOfflineMessageRetrieval(boolean trackOfflineMessageRetrieval) {
2838 if (trackOfflineMessageRetrieval) {
2839 final Iq iqPing = new Iq(Iq.Type.GET);
2840 iqPing.addChild("ping", Namespace.PING);
2841 this.sendIqPacket(
2842 iqPing,
2843 (response) -> {
2844 Log.d(
2845 Config.LOGTAG,
2846 account.getJid().asBareJid()
2847 + ": got ping response after sending initial presence");
2848 XmppConnection.this.offlineMessagesRetrieved = true;
2849 });
2850 } else {
2851 this.offlineMessagesRetrieved = true;
2852 }
2853 }
2854
2855 public boolean isOfflineMessagesRetrieved() {
2856 return this.offlineMessagesRetrieved;
2857 }
2858
2859 public void fetchRoster() {
2860 final Iq iqPacket = new Iq(Iq.Type.GET);
2861 final var version = account.getRosterVersion();
2862 if (Strings.isNullOrEmpty(account.getRosterVersion())) {
2863 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": fetching roster");
2864 } else {
2865 Log.d(
2866 Config.LOGTAG,
2867 account.getJid().asBareJid() + ": fetching roster version " + version);
2868 }
2869 iqPacket.query(Namespace.ROSTER).setAttribute("ver", version);
2870 sendIqPacket(iqPacket, unregisteredIqListener);
2871 }
2872
2873 private class MyKeyManager implements X509KeyManager {
2874 @Override
2875 public String chooseClientAlias(String[] strings, Principal[] principals, Socket socket) {
2876 return account.getPrivateKeyAlias();
2877 }
2878
2879 @Override
2880 public String chooseServerAlias(String s, Principal[] principals, Socket socket) {
2881 return null;
2882 }
2883
2884 @Override
2885 public X509Certificate[] getCertificateChain(String alias) {
2886 Log.d(Config.LOGTAG, "getting certificate chain");
2887 try {
2888 return KeyChain.getCertificateChain(mXmppConnectionService, alias);
2889 } catch (final Exception e) {
2890 Log.d(Config.LOGTAG, "could not get certificate chain", e);
2891 return new X509Certificate[0];
2892 }
2893 }
2894
2895 @Override
2896 public String[] getClientAliases(String s, Principal[] principals) {
2897 final String alias = account.getPrivateKeyAlias();
2898 return alias != null ? new String[] {alias} : new String[0];
2899 }
2900
2901 @Override
2902 public String[] getServerAliases(String s, Principal[] principals) {
2903 return new String[0];
2904 }
2905
2906 @Override
2907 public PrivateKey getPrivateKey(String alias) {
2908 try {
2909 return KeyChain.getPrivateKey(mXmppConnectionService, alias);
2910 } catch (Exception e) {
2911 return null;
2912 }
2913 }
2914 }
2915
2916 private static class LoginInfo {
2917 public final SaslMechanism saslMechanism;
2918 public final SaslMechanism.Version saslVersion;
2919 public final List<String> inlineBindFeatures;
2920 public final AtomicBoolean success = new AtomicBoolean(false);
2921
2922 private LoginInfo(
2923 final SaslMechanism saslMechanism,
2924 final SaslMechanism.Version saslVersion,
2925 final Collection<String> inlineBindFeatures) {
2926 Preconditions.checkNotNull(saslMechanism, "SASL Mechanism must not be null");
2927 Preconditions.checkNotNull(saslVersion, "SASL version must not be null");
2928 this.saslMechanism = saslMechanism;
2929 this.saslVersion = saslVersion;
2930 this.inlineBindFeatures =
2931 inlineBindFeatures == null
2932 ? Collections.emptyList()
2933 : ImmutableList.copyOf(inlineBindFeatures);
2934 }
2935
2936 public static SaslMechanism mechanism(final LoginInfo loginInfo) {
2937 return loginInfo == null ? null : loginInfo.saslMechanism;
2938 }
2939
2940 public void success(final String challenge, final SSLSocket sslSocket)
2941 throws SaslMechanism.AuthenticationException {
2942 final var response = this.saslMechanism.getResponse(challenge, sslSocket);
2943 if (!Strings.isNullOrEmpty(response)) {
2944 throw new SaslMechanism.AuthenticationException(
2945 "processing success yielded another response");
2946 }
2947 if (this.success.compareAndSet(false, true)) {
2948 return;
2949 }
2950 throw new SaslMechanism.AuthenticationException("Process 'success' twice");
2951 }
2952
2953 public static boolean isSuccess(final LoginInfo loginInfo) {
2954 return loginInfo != null && loginInfo.success.get();
2955 }
2956 }
2957
2958 private static class StreamId {
2959 public final String id;
2960 public final Resolver.Result location;
2961
2962 private StreamId(String id, Resolver.Result location) {
2963 this.id = id;
2964 this.location = location;
2965 }
2966
2967 @NonNull
2968 @Override
2969 public String toString() {
2970 return MoreObjects.toStringHelper(this)
2971 .add("id", id)
2972 .add("location", location)
2973 .toString();
2974 }
2975 }
2976
2977 private static class StateChangingError extends Error {
2978 private final Account.State state;
2979
2980 public StateChangingError(Account.State state) {
2981 this.state = state;
2982 }
2983 }
2984
2985 private static class StateChangingException extends IOException {
2986 private final Account.State state;
2987
2988 public StateChangingException(Account.State state) {
2989 this.state = state;
2990 }
2991 }
2992
2993 public class Features {
2994 XmppConnection connection;
2995 private boolean carbonsEnabled = false;
2996 private boolean encryptionEnabled = false;
2997 private boolean blockListRequested = false;
2998
2999 public Features(final XmppConnection connection) {
3000 this.connection = connection;
3001 }
3002
3003 private boolean hasDiscoFeature(final Jid server, final String feature) {
3004 synchronized (XmppConnection.this.disco) {
3005 final ServiceDiscoveryResult sdr = connection.disco.get(server);
3006 return sdr != null && sdr.getFeatures().contains(feature);
3007 }
3008 }
3009
3010 public boolean carbons() {
3011 return hasDiscoFeature(account.getDomain(), Namespace.CARBONS);
3012 }
3013
3014 public boolean commands() {
3015 return hasDiscoFeature(account.getDomain(), Namespace.COMMANDS);
3016 }
3017
3018 public boolean easyOnboardingInvites() {
3019 synchronized (commands) {
3020 return commands.containsKey(Namespace.EASY_ONBOARDING_INVITE);
3021 }
3022 }
3023
3024 public boolean bookmarksConversion() {
3025 return hasDiscoFeature(account.getJid().asBareJid(), Namespace.BOOKMARKS_CONVERSION)
3026 && pepPublishOptions();
3027 }
3028
3029 public boolean blocking() {
3030 return hasDiscoFeature(account.getDomain(), Namespace.BLOCKING);
3031 }
3032
3033 public boolean spamReporting() {
3034 return hasDiscoFeature(account.getDomain(), Namespace.REPORTING);
3035 }
3036
3037 public boolean flexibleOfflineMessageRetrieval() {
3038 return hasDiscoFeature(
3039 account.getDomain(), Namespace.FLEXIBLE_OFFLINE_MESSAGE_RETRIEVAL);
3040 }
3041
3042 public boolean register() {
3043 return hasDiscoFeature(account.getDomain(), Namespace.REGISTER);
3044 }
3045
3046 public boolean invite() {
3047 return connection.streamFeatures != null
3048 && connection.streamFeatures.hasChild("register", Namespace.INVITE);
3049 }
3050
3051 public boolean sm() {
3052 return streamId != null
3053 || (connection.streamFeatures != null
3054 && connection.streamFeatures.streamManagement());
3055 }
3056
3057 public boolean csi() {
3058 return connection.streamFeatures != null
3059 && connection.streamFeatures.clientStateIndication();
3060 }
3061
3062 public boolean pep() {
3063 synchronized (XmppConnection.this.disco) {
3064 ServiceDiscoveryResult info = disco.get(account.getJid().asBareJid());
3065 return info != null && info.hasIdentity("pubsub", "pep");
3066 }
3067 }
3068
3069 public boolean pepPersistent() {
3070 synchronized (XmppConnection.this.disco) {
3071 ServiceDiscoveryResult info = disco.get(account.getJid().asBareJid());
3072 return info != null
3073 && info.getFeatures()
3074 .contains("http://jabber.org/protocol/pubsub#persistent-items");
3075 }
3076 }
3077
3078 public boolean bind2() {
3079 final var loginInfo = XmppConnection.this.loginInfo;
3080 return loginInfo != null && !loginInfo.inlineBindFeatures.isEmpty();
3081 }
3082
3083 public boolean sasl2() {
3084 final var loginInfo = XmppConnection.this.loginInfo;
3085 return loginInfo != null && loginInfo.saslVersion == SaslMechanism.Version.SASL_2;
3086 }
3087
3088 public String loginMechanism() {
3089 final var loginInfo = XmppConnection.this.loginInfo;
3090 return loginInfo == null ? null : loginInfo.saslMechanism.getMechanism();
3091 }
3092
3093 public boolean pepPublishOptions() {
3094 return hasDiscoFeature(account.getJid().asBareJid(), Namespace.PUBSUB_PUBLISH_OPTIONS);
3095 }
3096
3097 public boolean pepConfigNodeMax() {
3098 return hasDiscoFeature(account.getJid().asBareJid(), Namespace.PUBSUB_CONFIG_NODE_MAX);
3099 }
3100
3101 public boolean pepOmemoWhitelisted() {
3102 return hasDiscoFeature(
3103 account.getJid().asBareJid(), AxolotlService.PEP_OMEMO_WHITELISTED);
3104 }
3105
3106 public boolean mam() {
3107 return MessageArchiveService.Version.has(getAccountFeatures());
3108 }
3109
3110 public List<String> getAccountFeatures() {
3111 ServiceDiscoveryResult result = connection.disco.get(account.getJid().asBareJid());
3112 return result == null ? Collections.emptyList() : result.getFeatures();
3113 }
3114
3115 public boolean push() {
3116 return hasDiscoFeature(account.getJid().asBareJid(), Namespace.PUSH)
3117 || hasDiscoFeature(account.getDomain(), Namespace.PUSH);
3118 }
3119
3120 public boolean rosterVersioning() {
3121 return connection.streamFeatures != null && connection.streamFeatures.hasChild("ver");
3122 }
3123
3124 public void setBlockListRequested(boolean value) {
3125 this.blockListRequested = value;
3126 }
3127
3128 public boolean httpUpload(long filesize) {
3129 if (Config.DISABLE_HTTP_UPLOAD) {
3130 return false;
3131 } else {
3132 for (String namespace :
3133 new String[] {Namespace.HTTP_UPLOAD, Namespace.HTTP_UPLOAD_LEGACY}) {
3134 List<Entry<Jid, ServiceDiscoveryResult>> items =
3135 findDiscoItemsByFeature(namespace);
3136 if (items.size() > 0) {
3137 try {
3138 long maxsize =
3139 Long.parseLong(
3140 items.get(0)
3141 .getValue()
3142 .getExtendedDiscoInformation(
3143 namespace, "max-file-size"));
3144 if (filesize <= maxsize) {
3145 return true;
3146 } else {
3147 Log.d(
3148 Config.LOGTAG,
3149 account.getJid().asBareJid()
3150 + ": http upload is not available for files with size "
3151 + filesize
3152 + " (max is "
3153 + maxsize
3154 + ")");
3155 return false;
3156 }
3157 } catch (Exception e) {
3158 return true;
3159 }
3160 }
3161 }
3162 return false;
3163 }
3164 }
3165
3166 public boolean useLegacyHttpUpload() {
3167 return findDiscoItemByFeature(Namespace.HTTP_UPLOAD) == null
3168 && findDiscoItemByFeature(Namespace.HTTP_UPLOAD_LEGACY) != null;
3169 }
3170
3171 public long getMaxHttpUploadSize() {
3172 for (String namespace :
3173 new String[] {Namespace.HTTP_UPLOAD, Namespace.HTTP_UPLOAD_LEGACY}) {
3174 List<Entry<Jid, ServiceDiscoveryResult>> items = findDiscoItemsByFeature(namespace);
3175 if (items.size() > 0) {
3176 try {
3177 return Long.parseLong(
3178 items.get(0)
3179 .getValue()
3180 .getExtendedDiscoInformation(namespace, "max-file-size"));
3181 } catch (Exception e) {
3182 // ignored
3183 }
3184 }
3185 }
3186 return -1;
3187 }
3188
3189 public boolean stanzaIds() {
3190 return hasDiscoFeature(account.getJid().asBareJid(), Namespace.STANZA_IDS);
3191 }
3192
3193 public boolean bookmarks2() {
3194 return pepPublishOptions()
3195 && hasDiscoFeature(account.getJid().asBareJid(), Namespace.BOOKMARKS2_COMPAT);
3196 }
3197
3198 public boolean externalServiceDiscovery() {
3199 return hasDiscoFeature(account.getDomain(), Namespace.EXTERNAL_SERVICE_DISCOVERY);
3200 }
3201
3202 public boolean mds() {
3203 return pepPublishOptions()
3204 && pepConfigNodeMax()
3205 && Config.MESSAGE_DISPLAYED_SYNCHRONIZATION;
3206 }
3207
3208 public boolean mdsServerAssist() {
3209 return hasDiscoFeature(account.getJid().asBareJid(), Namespace.MDS_DISPLAYED);
3210 }
3211 }
3212}