1package eu.siacs.conversations.xmpp;
2
3import android.graphics.Bitmap;
4import android.graphics.BitmapFactory;
5import android.os.Bundle;
6import android.os.Parcelable;
7import android.os.PowerManager;
8import android.os.PowerManager.WakeLock;
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 org.json.JSONException;
17import org.json.JSONObject;
18import org.xmlpull.v1.XmlPullParserException;
19
20import java.io.ByteArrayInputStream;
21import java.io.IOException;
22import java.io.InputStream;
23import java.io.OutputStream;
24import java.math.BigInteger;
25import java.net.ConnectException;
26import java.net.IDN;
27import java.net.InetAddress;
28import java.net.InetSocketAddress;
29import java.net.Socket;
30import java.net.UnknownHostException;
31import java.net.URL;
32import java.nio.ByteBuffer;
33import java.security.KeyManagementException;
34import java.security.NoSuchAlgorithmException;
35import java.security.Principal;
36import java.security.PrivateKey;
37import java.security.cert.X509Certificate;
38import java.util.ArrayList;
39import java.util.Arrays;
40import java.util.Collection;
41import java.util.HashMap;
42import java.util.Hashtable;
43import java.util.Iterator;
44import java.util.LinkedList;
45import java.util.List;
46import java.util.Map.Entry;
47
48import javax.net.ssl.HostnameVerifier;
49import javax.net.ssl.KeyManager;
50import javax.net.ssl.SSLContext;
51import javax.net.ssl.SSLSocket;
52import javax.net.ssl.SSLSocketFactory;
53import javax.net.ssl.X509KeyManager;
54import javax.net.ssl.X509TrustManager;
55
56import de.duenndns.ssl.MemorizingTrustManager;
57import eu.siacs.conversations.Config;
58import eu.siacs.conversations.crypto.XmppDomainVerifier;
59import eu.siacs.conversations.crypto.sasl.DigestMd5;
60import eu.siacs.conversations.crypto.sasl.External;
61import eu.siacs.conversations.crypto.sasl.Plain;
62import eu.siacs.conversations.crypto.sasl.SaslMechanism;
63import eu.siacs.conversations.crypto.sasl.ScramSha1;
64import eu.siacs.conversations.entities.Account;
65import eu.siacs.conversations.entities.Message;
66import eu.siacs.conversations.generator.IqGenerator;
67import eu.siacs.conversations.services.XmppConnectionService;
68import eu.siacs.conversations.utils.CryptoHelper;
69import eu.siacs.conversations.utils.DNSHelper;
70import eu.siacs.conversations.utils.Xmlns;
71import eu.siacs.conversations.xml.Element;
72import eu.siacs.conversations.xml.Tag;
73import eu.siacs.conversations.xml.TagWriter;
74import eu.siacs.conversations.xml.XmlReader;
75import eu.siacs.conversations.xmpp.forms.Data;
76import eu.siacs.conversations.xmpp.forms.Field;
77import eu.siacs.conversations.xmpp.jid.InvalidJidException;
78import eu.siacs.conversations.xmpp.jid.Jid;
79import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
80import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
81import eu.siacs.conversations.xmpp.stanzas.AbstractAcknowledgeableStanza;
82import eu.siacs.conversations.xmpp.stanzas.AbstractStanza;
83import eu.siacs.conversations.xmpp.stanzas.IqPacket;
84import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
85import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
86import eu.siacs.conversations.xmpp.stanzas.csi.ActivePacket;
87import eu.siacs.conversations.xmpp.stanzas.csi.InactivePacket;
88import eu.siacs.conversations.xmpp.stanzas.streammgmt.AckPacket;
89import eu.siacs.conversations.xmpp.stanzas.streammgmt.EnablePacket;
90import eu.siacs.conversations.xmpp.stanzas.streammgmt.RequestPacket;
91import eu.siacs.conversations.xmpp.stanzas.streammgmt.ResumePacket;
92
93public class XmppConnection implements Runnable {
94
95 private static final int PACKET_IQ = 0;
96 private static final int PACKET_MESSAGE = 1;
97 private static final int PACKET_PRESENCE = 2;
98 protected Account account;
99 private final WakeLock wakeLock;
100 private Socket socket;
101 private XmlReader tagReader;
102 private TagWriter tagWriter;
103 private final Features features = new Features(this);
104 private boolean needsBinding = true;
105 private boolean shouldAuthenticate = true;
106 private Element streamFeatures;
107 private final HashMap<Jid, Info> disco = new HashMap<>();
108
109 private String streamId = null;
110 private int smVersion = 3;
111 private final SparseArray<AbstractAcknowledgeableStanza> mStanzaQueue = new SparseArray<>();
112
113 private int stanzasReceived = 0;
114 private int stanzasSent = 0;
115 private long lastPacketReceived = 0;
116 private long lastPingSent = 0;
117 private long lastConnect = 0;
118 private long lastSessionStarted = 0;
119 private boolean mInteractive = false;
120 private int attempt = 0;
121 private final Hashtable<String, Pair<IqPacket, OnIqPacketReceived>> packetCallbacks = new Hashtable<>();
122 private OnPresencePacketReceived presenceListener = null;
123 private OnJinglePacketReceived jingleListener = null;
124 private OnIqPacketReceived unregisteredIqListener = null;
125 private OnMessagePacketReceived messageListener = null;
126 private OnStatusChanged statusListener = null;
127 private OnBindListener bindListener = null;
128 private final ArrayList<OnAdvancedStreamFeaturesLoaded> advancedStreamFeaturesLoadedListeners = new ArrayList<>();
129 private OnMessageAcknowledged acknowledgedListener = null;
130 private XmppConnectionService mXmppConnectionService = null;
131
132 private SaslMechanism saslMechanism;
133
134 private X509KeyManager mKeyManager = new X509KeyManager() {
135 @Override
136 public String chooseClientAlias(String[] strings, Principal[] principals, Socket socket) {
137 return account.getPrivateKeyAlias();
138 }
139
140 @Override
141 public String chooseServerAlias(String s, Principal[] principals, Socket socket) {
142 return null;
143 }
144
145 @Override
146 public X509Certificate[] getCertificateChain(String alias) {
147 try {
148 return KeyChain.getCertificateChain(mXmppConnectionService, alias);
149 } catch (Exception e) {
150 return new X509Certificate[0];
151 }
152 }
153
154 @Override
155 public String[] getClientAliases(String s, Principal[] principals) {
156 return new String[0];
157 }
158
159 @Override
160 public String[] getServerAliases(String s, Principal[] principals) {
161 return new String[0];
162 }
163
164 @Override
165 public PrivateKey getPrivateKey(String alias) {
166 try {
167 return KeyChain.getPrivateKey(mXmppConnectionService, alias);
168 } catch (Exception e) {
169 return null;
170 }
171 }
172 };
173 private Identity mServerIdentity = Identity.UNKNOWN;
174
175 private OnIqPacketReceived createPacketReceiveHandler() {
176 return new OnIqPacketReceived() {
177 @Override
178 public void onIqPacketReceived(Account account, IqPacket packet) {
179 if (packet.getType() == IqPacket.TYPE.RESULT) {
180 account.setOption(Account.OPTION_REGISTER,
181 false);
182 changeStatus(Account.State.REGISTRATION_SUCCESSFUL);
183 } else if (packet.hasChild("error")
184 && (packet.findChild("error")
185 .hasChild("conflict"))) {
186 changeStatus(Account.State.REGISTRATION_CONFLICT);
187 } else {
188 changeStatus(Account.State.REGISTRATION_FAILED);
189 Log.d(Config.LOGTAG, packet.toString());
190 }
191 disconnect(true);
192 }
193 };
194 }
195
196 public XmppConnection(final Account account, final XmppConnectionService service) {
197 this.account = account;
198 this.wakeLock = service.getPowerManager().newWakeLock(
199 PowerManager.PARTIAL_WAKE_LOCK, account.getJid().toBareJid().toString());
200 tagWriter = new TagWriter();
201 mXmppConnectionService = service;
202 }
203
204 protected void changeStatus(final Account.State nextStatus) {
205 if (account.getStatus() != nextStatus) {
206 if ((nextStatus == Account.State.OFFLINE)
207 && (account.getStatus() != Account.State.CONNECTING)
208 && (account.getStatus() != Account.State.ONLINE)
209 && (account.getStatus() != Account.State.DISABLED)) {
210 return;
211 }
212 if (nextStatus == Account.State.ONLINE) {
213 this.attempt = 0;
214 }
215 account.setStatus(nextStatus);
216 if (statusListener != null) {
217 statusListener.onStatusChanged(account);
218 }
219 }
220 }
221
222 protected void connect() {
223 Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": connecting");
224 features.encryptionEnabled = false;
225 lastConnect = SystemClock.elapsedRealtime();
226 lastPingSent = SystemClock.elapsedRealtime();
227 this.attempt++;
228 if (account.getJid().getDomainpart().equals("chat.facebook.com")) {
229 mServerIdentity = Identity.FACEBOOK;
230 }
231 try {
232 shouldAuthenticate = needsBinding = !account.isOptionSet(Account.OPTION_REGISTER);
233 tagReader = new XmlReader(wakeLock);
234 tagWriter = new TagWriter();
235 this.changeStatus(Account.State.CONNECTING);
236 final boolean useTor = mXmppConnectionService.useTorToConnect() || account.isOnion();
237 if (useTor) {
238 InetSocketAddress proxyAddress = new InetSocketAddress(InetAddress.getLocalHost(), 9050);
239 byte[] destination;
240 if (account.getHostname() == null || account.getHostname().isEmpty()) {
241 destination = account.getServer().toString().getBytes();
242 } else {
243 destination = account.getHostname().getBytes();
244 }
245 Log.d(Config.LOGTAG,"connecting via tor to "+new String(destination));
246 socket = new Socket();
247 socket.connect(proxyAddress, Config.CONNECT_TIMEOUT * 1000);
248 InputStream proxyIs = socket.getInputStream();
249 OutputStream proxyOs = socket.getOutputStream();
250 proxyOs.write(new byte[]{0x05, 0x01, 0x00});
251 byte[] response = new byte[2];
252 proxyIs.read(response);
253 ByteBuffer request = ByteBuffer.allocate(7 + destination.length);
254 request.put(new byte[]{0x05, 0x01, 0x00, 0x03});
255 request.put((byte) destination.length);
256 request.put(destination);
257 request.putShort((short) account.getPort());
258 proxyOs.write(request.array());
259 response = new byte[7 + destination.length];
260 proxyIs.read(response);
261 if (response[1] != 0x00) {
262 throw new UnknownHostException();
263 }
264 } else if (DNSHelper.isIp(account.getServer().toString())) {
265 socket = new Socket();
266 try {
267 socket.connect(new InetSocketAddress(account.getServer().toString(), 5222), Config.SOCKET_TIMEOUT * 1000);
268 } catch (IOException e) {
269 throw new UnknownHostException();
270 }
271 } else {
272 final Bundle result = DNSHelper.getSRVRecord(account.getServer(),mXmppConnectionService);
273 final ArrayList<Parcelable>values = result.getParcelableArrayList("values");
274 int i = 0;
275 boolean socketError = true;
276 while (socketError && values.size() > i) {
277 final Bundle namePort = (Bundle) values.get(i);
278 try {
279 String srvRecordServer;
280 try {
281 srvRecordServer = IDN.toASCII(namePort.getString("name"));
282 } catch (final IllegalArgumentException e) {
283 // TODO: Handle me?`
284 srvRecordServer = "";
285 }
286 final int srvRecordPort = namePort.getInt("port");
287 final String srvIpServer = namePort.getString("ip");
288 final InetSocketAddress addr;
289 if (srvIpServer != null) {
290 addr = new InetSocketAddress(srvIpServer, srvRecordPort);
291 Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
292 + ": using values from dns " + srvRecordServer
293 + "[" + srvIpServer + "]:" + srvRecordPort);
294 } else {
295 addr = new InetSocketAddress(srvRecordServer, srvRecordPort);
296 Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
297 + ": using values from dns "
298 + srvRecordServer + ":" + srvRecordPort);
299 }
300 socket = new Socket();
301 socket.connect(addr, Config.SOCKET_TIMEOUT * 1000);
302 socketError = false;
303 } catch (final Throwable e) {
304 Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": " + e.getMessage() +"("+e.getClass().getName()+")");
305 i++;
306 }
307 }
308 if (socketError) {
309 throw new UnknownHostException();
310 }
311 }
312 final OutputStream out = socket.getOutputStream();
313 tagWriter.setOutputStream(out);
314 final InputStream in = socket.getInputStream();
315 tagReader.setInputStream(in);
316 tagWriter.beginDocument();
317 sendStartStream();
318 Tag nextTag;
319 while ((nextTag = tagReader.readTag()) != null) {
320 if (nextTag.isStart("stream")) {
321 processStream();
322 break;
323 } else {
324 throw new IOException("unknown tag on connect");
325 }
326 }
327 if (socket.isConnected()) {
328 socket.close();
329 }
330 } catch (final IncompatibleServerException e) {
331 this.changeStatus(Account.State.INCOMPATIBLE_SERVER);
332 } catch (final SecurityException e) {
333 this.changeStatus(Account.State.SECURITY_ERROR);
334 } catch (final UnauthorizedException e) {
335 this.changeStatus(Account.State.UNAUTHORIZED);
336 } catch (final UnknownHostException | ConnectException e) {
337 this.changeStatus(Account.State.SERVER_NOT_FOUND);
338 } catch (final DnsTimeoutException e) {
339 this.changeStatus(Account.State.DNS_TIMEOUT);
340 } catch (final IOException | XmlPullParserException | NoSuchAlgorithmException e) {
341 Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": " + e.getMessage());
342 this.changeStatus(Account.State.OFFLINE);
343 this.attempt--; //don't count attempt when reconnecting instantly anyway
344 } finally {
345 if (socket != null) {
346 try {
347 socket.close();
348 } catch (IOException e) {
349
350 }
351 }
352 if (wakeLock.isHeld()) {
353 try {
354 wakeLock.release();
355 } catch (final RuntimeException ignored) {
356 }
357 }
358 }
359 }
360
361 @Override
362 public void run() {
363 try {
364 if (socket != null) {
365 socket.close();
366 }
367 } catch (final IOException ignored) {
368
369 }
370 connect();
371 }
372
373 private void processStream() throws XmlPullParserException, IOException, NoSuchAlgorithmException {
374 Tag nextTag = tagReader.readTag();
375 while (nextTag != null && !nextTag.isEnd("stream")) {
376 if (nextTag.isStart("error")) {
377 processStreamError(nextTag);
378 } else if (nextTag.isStart("features")) {
379 processStreamFeatures(nextTag);
380 } else if (nextTag.isStart("proceed")) {
381 switchOverToTls(nextTag);
382 } else if (nextTag.isStart("success")) {
383 final String challenge = tagReader.readElement(nextTag).getContent();
384 try {
385 saslMechanism.getResponse(challenge);
386 } catch (final SaslMechanism.AuthenticationException e) {
387 disconnect(true);
388 Log.e(Config.LOGTAG, String.valueOf(e));
389 }
390 Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": logged in");
391 account.setKey(Account.PINNED_MECHANISM_KEY,
392 String.valueOf(saslMechanism.getPriority()));
393 tagReader.reset();
394 sendStartStream();
395 final Tag tag = tagReader.readTag();
396 if (tag != null && tag.isStart("stream")) {
397 processStream();
398 } else {
399 throw new IOException("server didn't restart stream after successful auth");
400 }
401 break;
402 } else if (nextTag.isStart("failure")) {
403 throw new UnauthorizedException();
404 } else if (nextTag.isStart("challenge")) {
405 final String challenge = tagReader.readElement(nextTag).getContent();
406 final Element response = new Element("response");
407 response.setAttribute("xmlns",
408 "urn:ietf:params:xml:ns:xmpp-sasl");
409 try {
410 response.setContent(saslMechanism.getResponse(challenge));
411 } catch (final SaslMechanism.AuthenticationException e) {
412 // TODO: Send auth abort tag.
413 Log.e(Config.LOGTAG, e.toString());
414 }
415 tagWriter.writeElement(response);
416 } else if (nextTag.isStart("enabled")) {
417 final Element enabled = tagReader.readElement(nextTag);
418 if ("true".equals(enabled.getAttribute("resume"))) {
419 this.streamId = enabled.getAttribute("id");
420 Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
421 + ": stream managment(" + smVersion
422 + ") enabled (resumable)");
423 } else {
424 Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
425 + ": stream management(" + smVersion + ") enabled");
426 }
427 this.stanzasReceived = 0;
428 final RequestPacket r = new RequestPacket(smVersion);
429 tagWriter.writeStanzaAsync(r);
430 } else if (nextTag.isStart("resumed")) {
431 lastPacketReceived = SystemClock.elapsedRealtime();
432 final Element resumed = tagReader.readElement(nextTag);
433 final String h = resumed.getAttribute("h");
434 try {
435 final int serverCount = Integer.parseInt(h);
436 if (serverCount != stanzasSent) {
437 Log.d(Config.LOGTAG, account.getJid().toBareJid().toString()
438 + ": session resumed with lost packages");
439 stanzasSent = serverCount;
440 } else {
441 Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": session resumed");
442 }
443 acknowledgeStanzaUpTo(serverCount);
444 ArrayList<AbstractAcknowledgeableStanza> failedStanzas = new ArrayList<>();
445 for(int i = 0; i < this.mStanzaQueue.size(); ++i) {
446 failedStanzas.add(mStanzaQueue.valueAt(i));
447 }
448 mStanzaQueue.clear();
449 Log.d(Config.LOGTAG,"resending "+failedStanzas.size()+" stanzas");
450 for(AbstractAcknowledgeableStanza packet : failedStanzas) {
451 if (packet instanceof MessagePacket) {
452 MessagePacket message = (MessagePacket) packet;
453 mXmppConnectionService.markMessage(account,
454 message.getTo().toBareJid(),
455 message.getId(),
456 Message.STATUS_UNSEND);
457 }
458 sendPacket(packet);
459 }
460 } catch (final NumberFormatException ignored) {
461 }
462 Log.d(Config.LOGTAG, account.getJid().toBareJid()+ ": online with resource " + account.getResource());
463 changeStatus(Account.State.ONLINE);
464 } else if (nextTag.isStart("r")) {
465 tagReader.readElement(nextTag);
466 if (Config.EXTENDED_SM_LOGGING) {
467 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": acknowledging stanza #" + this.stanzasReceived);
468 }
469 final AckPacket ack = new AckPacket(this.stanzasReceived, smVersion);
470 tagWriter.writeStanzaAsync(ack);
471 } else if (nextTag.isStart("a")) {
472 final Element ack = tagReader.readElement(nextTag);
473 lastPacketReceived = SystemClock.elapsedRealtime();
474 try {
475 final int serverSequence = Integer.parseInt(ack.getAttribute("h"));
476 acknowledgeStanzaUpTo(serverSequence);
477 } catch (NumberFormatException e) {
478 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": server send ack without sequence number");
479 }
480 } else if (nextTag.isStart("failed")) {
481 tagReader.readElement(nextTag);
482 Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": resumption failed");
483 streamId = null;
484 if (account.getStatus() != Account.State.ONLINE) {
485 sendBindRequest();
486 }
487 } else if (nextTag.isStart("iq")) {
488 processIq(nextTag);
489 } else if (nextTag.isStart("message")) {
490 processMessage(nextTag);
491 } else if (nextTag.isStart("presence")) {
492 processPresence(nextTag);
493 }
494 nextTag = tagReader.readTag();
495 }
496 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": last tag was " + nextTag);
497 if (account.getStatus() == Account.State.ONLINE) {
498 account. setStatus(Account.State.OFFLINE);
499 if (statusListener != null) {
500 statusListener.onStatusChanged(account);
501 }
502 }
503 }
504
505 private void acknowledgeStanzaUpTo(int serverCount) {
506 for (int i = 0; i < mStanzaQueue.size(); ++i) {
507 if (serverCount >= mStanzaQueue.keyAt(i)) {
508 if (Config.EXTENDED_SM_LOGGING) {
509 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": server acknowledged stanza #" + mStanzaQueue.keyAt(i));
510 }
511 AbstractAcknowledgeableStanza stanza = mStanzaQueue.valueAt(i);
512 if (stanza instanceof MessagePacket && acknowledgedListener != null) {
513 MessagePacket packet = (MessagePacket) stanza;
514 acknowledgedListener.onMessageAcknowledged(account, packet.getId());
515 }
516 mStanzaQueue.removeAt(i);
517 i--;
518 }
519 }
520 }
521
522 private Element processPacket(final Tag currentTag, final int packetType)
523 throws XmlPullParserException, IOException {
524 Element element;
525 switch (packetType) {
526 case PACKET_IQ:
527 element = new IqPacket();
528 break;
529 case PACKET_MESSAGE:
530 element = new MessagePacket();
531 break;
532 case PACKET_PRESENCE:
533 element = new PresencePacket();
534 break;
535 default:
536 return null;
537 }
538 element.setAttributes(currentTag.getAttributes());
539 Tag nextTag = tagReader.readTag();
540 if (nextTag == null) {
541 throw new IOException("interrupted mid tag");
542 }
543 while (!nextTag.isEnd(element.getName())) {
544 if (!nextTag.isNo()) {
545 final Element child = tagReader.readElement(nextTag);
546 final String type = currentTag.getAttribute("type");
547 if (packetType == PACKET_IQ
548 && "jingle".equals(child.getName())
549 && ("set".equalsIgnoreCase(type) || "get"
550 .equalsIgnoreCase(type))) {
551 element = new JinglePacket();
552 element.setAttributes(currentTag.getAttributes());
553 }
554 element.addChild(child);
555 }
556 nextTag = tagReader.readTag();
557 if (nextTag == null) {
558 throw new IOException("interrupted mid tag");
559 }
560 }
561 if (stanzasReceived == Integer.MAX_VALUE) {
562 resetStreamId();
563 throw new IOException("time to restart the session. cant handle >2 billion pcks");
564 }
565 ++stanzasReceived;
566 lastPacketReceived = SystemClock.elapsedRealtime();
567 return element;
568 }
569
570 private void processIq(final Tag currentTag) throws XmlPullParserException, IOException {
571 final IqPacket packet = (IqPacket) processPacket(currentTag, PACKET_IQ);
572
573 if (packet.getId() == null) {
574 return; // an iq packet without id is definitely invalid
575 }
576
577 if (packet instanceof JinglePacket) {
578 if (this.jingleListener != null) {
579 this.jingleListener.onJinglePacketReceived(account,(JinglePacket) packet);
580 }
581 } else {
582 OnIqPacketReceived callback = null;
583 synchronized (this.packetCallbacks) {
584 if (packetCallbacks.containsKey(packet.getId())) {
585 final Pair<IqPacket, OnIqPacketReceived> packetCallbackDuple = packetCallbacks.get(packet.getId());
586 // Packets to the server should have responses from the server
587 if (packetCallbackDuple.first.toServer(account)) {
588 if (packet.fromServer(account) || mServerIdentity == Identity.FACEBOOK) {
589 callback = packetCallbackDuple.second;
590 packetCallbacks.remove(packet.getId());
591 } else {
592 Log.e(Config.LOGTAG, account.getJid().toBareJid().toString() + ": ignoring spoofed iq packet");
593 }
594 } else {
595 if (packet.getFrom().equals(packetCallbackDuple.first.getTo())) {
596 callback = packetCallbackDuple.second;
597 packetCallbacks.remove(packet.getId());
598 } else {
599 Log.e(Config.LOGTAG, account.getJid().toBareJid().toString() + ": ignoring spoofed iq packet");
600 }
601 }
602 } else if (packet.getType() == IqPacket.TYPE.GET || packet.getType() == IqPacket.TYPE.SET) {
603 callback = this.unregisteredIqListener;
604 }
605 }
606 if (callback != null) {
607 callback.onIqPacketReceived(account,packet);
608 }
609 }
610 }
611
612 private void processMessage(final Tag currentTag) throws XmlPullParserException, IOException {
613 final MessagePacket packet = (MessagePacket) processPacket(currentTag,PACKET_MESSAGE);
614 this.messageListener.onMessagePacketReceived(account, packet);
615 }
616
617 private void processPresence(final Tag currentTag) throws XmlPullParserException, IOException {
618 PresencePacket packet = (PresencePacket) processPacket(currentTag, PACKET_PRESENCE);
619 this.presenceListener.onPresencePacketReceived(account, packet);
620 }
621
622 private void sendStartTLS() throws IOException {
623 final Tag startTLS = Tag.empty("starttls");
624 startTLS.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-tls");
625 tagWriter.writeTag(startTLS);
626 }
627
628 private void switchOverToTls(final Tag currentTag) throws XmlPullParserException, IOException {
629 tagReader.readTag();
630 try {
631 final SSLContext sc = SSLContext.getInstance("TLS");
632 MemorizingTrustManager trustManager = this.mXmppConnectionService.getMemorizingTrustManager();
633 KeyManager[] keyManager;
634 if (account.getPrivateKeyAlias() != null && account.getPassword().isEmpty()) {
635 keyManager = new KeyManager[]{ mKeyManager };
636 } else {
637 keyManager = null;
638 }
639 sc.init(keyManager,new X509TrustManager[]{mInteractive ? trustManager : trustManager.getNonInteractive()},mXmppConnectionService.getRNG());
640 final SSLSocketFactory factory = sc.getSocketFactory();
641 final HostnameVerifier verifier;
642 if (mInteractive) {
643 verifier = trustManager.wrapHostnameVerifier(new XmppDomainVerifier());
644 } else {
645 verifier = trustManager.wrapHostnameVerifierNonInteractive(new XmppDomainVerifier());
646 }
647 final InetAddress address = socket == null ? null : socket.getInetAddress();
648
649 if (factory == null || address == null || verifier == null) {
650 throw new IOException("could not setup ssl");
651 }
652
653 final SSLSocket sslSocket = (SSLSocket) factory.createSocket(socket,address.getHostAddress(), socket.getPort(),true);
654
655 if (sslSocket == null) {
656 throw new IOException("could not initialize ssl socket");
657 }
658
659 final String[] supportProtocols;
660 final Collection<String> supportedProtocols = new LinkedList<>(
661 Arrays.asList(sslSocket.getSupportedProtocols()));
662 supportedProtocols.remove("SSLv3");
663 supportProtocols = supportedProtocols.toArray(new String[supportedProtocols.size()]);
664
665 sslSocket.setEnabledProtocols(supportProtocols);
666
667 final String[] cipherSuites = CryptoHelper.getOrderedCipherSuites(
668 sslSocket.getSupportedCipherSuites());
669 //Log.d(Config.LOGTAG, "Using ciphers: " + Arrays.toString(cipherSuites));
670 if (cipherSuites.length > 0) {
671 sslSocket.setEnabledCipherSuites(cipherSuites);
672 }
673
674 if (!verifier.verify(account.getServer().getDomainpart(),sslSocket.getSession())) {
675 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": TLS certificate verification failed");
676 throw new SecurityException();
677 }
678 tagReader.setInputStream(sslSocket.getInputStream());
679 tagWriter.setOutputStream(sslSocket.getOutputStream());
680 sendStartStream();
681 Log.d(Config.LOGTAG, account.getJid().toBareJid()+ ": TLS connection established");
682 features.encryptionEnabled = true;
683 final Tag tag = tagReader.readTag();
684 if (tag != null && tag.isStart("stream")) {
685 processStream();
686 } else {
687 throw new IOException("server didn't restart stream after STARTTLS");
688 }
689 sslSocket.close();
690 } catch (final NoSuchAlgorithmException | KeyManagementException e1) {
691 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": TLS certificate verification failed");
692 throw new SecurityException();
693 }
694 }
695
696 private void processStreamFeatures(final Tag currentTag)
697 throws XmlPullParserException, IOException {
698 this.streamFeatures = tagReader.readElement(currentTag);
699 if (this.streamFeatures.hasChild("starttls") && !features.encryptionEnabled) {
700 sendStartTLS();
701 } else if (this.streamFeatures.hasChild("register")
702 && account.isOptionSet(Account.OPTION_REGISTER)
703 && features.encryptionEnabled) {
704 sendRegistryRequest();
705 } else if (!this.streamFeatures.hasChild("register")
706 && account.isOptionSet(Account.OPTION_REGISTER)) {
707 changeStatus(Account.State.REGISTRATION_NOT_SUPPORTED);
708 disconnect(true);
709 } else if (this.streamFeatures.hasChild("mechanisms")
710 && shouldAuthenticate && features.encryptionEnabled) {
711 final List<String> mechanisms = extractMechanisms(streamFeatures
712 .findChild("mechanisms"));
713 final Element auth = new Element("auth");
714 auth.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-sasl");
715 if (mechanisms.contains("EXTERNAL") && account.getPrivateKeyAlias() != null) {
716 saslMechanism = new External(tagWriter, account, mXmppConnectionService.getRNG());
717 } else if (mechanisms.contains("SCRAM-SHA-1")) {
718 saslMechanism = new ScramSha1(tagWriter, account, mXmppConnectionService.getRNG());
719 } else if (mechanisms.contains("PLAIN")) {
720 saslMechanism = new Plain(tagWriter, account);
721 } else if (mechanisms.contains("DIGEST-MD5")) {
722 saslMechanism = new DigestMd5(tagWriter, account, mXmppConnectionService.getRNG());
723 }
724 if (saslMechanism != null) {
725 final JSONObject keys = account.getKeys();
726 try {
727 if (keys.has(Account.PINNED_MECHANISM_KEY) &&
728 keys.getInt(Account.PINNED_MECHANISM_KEY) > saslMechanism.getPriority()) {
729 Log.e(Config.LOGTAG, "Auth failed. Authentication mechanism " + saslMechanism.getMechanism() +
730 " has lower priority (" + String.valueOf(saslMechanism.getPriority()) +
731 ") than pinned priority (" + keys.getInt(Account.PINNED_MECHANISM_KEY) +
732 "). Possible downgrade attack?");
733 throw new SecurityException();
734 }
735 } catch (final JSONException e) {
736 Log.d(Config.LOGTAG, "Parse error while checking pinned auth mechanism");
737 }
738 Log.d(Config.LOGTAG, account.getJid().toString() + ": Authenticating with " + saslMechanism.getMechanism());
739 auth.setAttribute("mechanism", saslMechanism.getMechanism());
740 if (!saslMechanism.getClientFirstMessage().isEmpty()) {
741 auth.setContent(saslMechanism.getClientFirstMessage());
742 }
743 tagWriter.writeElement(auth);
744 } else {
745 throw new IncompatibleServerException();
746 }
747 } else if (this.streamFeatures.hasChild("sm", "urn:xmpp:sm:" + smVersion) && streamId != null) {
748 if (Config.EXTENDED_SM_LOGGING) {
749 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": resuming after stanza #"+stanzasReceived);
750 }
751 final ResumePacket resume = new ResumePacket(this.streamId, stanzasReceived, smVersion);
752 this.tagWriter.writeStanzaAsync(resume);
753 } else if (needsBinding) {
754 if (this.streamFeatures.hasChild("bind")) {
755 sendBindRequest();
756 } else {
757 throw new IncompatibleServerException();
758 }
759 }
760 }
761
762 private List<String> extractMechanisms(final Element stream) {
763 final ArrayList<String> mechanisms = new ArrayList<>(stream
764 .getChildren().size());
765 for (final Element child : stream.getChildren()) {
766 mechanisms.add(child.getContent());
767 }
768 return mechanisms;
769 }
770
771 public void sendCaptchaRegistryRequest(String id, Data data) {
772 if (data == null) {
773 setAccountCreationFailed("");
774 } else {
775 IqPacket request = getIqGenerator().generateCreateAccountWithCaptcha(account, id, data);
776 sendIqPacket(request, createPacketReceiveHandler());
777 }
778 }
779
780 private void sendRegistryRequest() {
781 final IqPacket register = new IqPacket(IqPacket.TYPE.GET);
782 register.query("jabber:iq:register");
783 register.setTo(account.getServer());
784 sendIqPacket(register, new OnIqPacketReceived() {
785
786 @Override
787 public void onIqPacketReceived(final Account account, final IqPacket packet) {
788 boolean failed = false;
789 if (packet.getType() == IqPacket.TYPE.RESULT
790 && packet.query().hasChild("username")
791 && (packet.query().hasChild("password"))) {
792 final IqPacket register = new IqPacket(IqPacket.TYPE.SET);
793 final Element username = new Element("username").setContent(account.getUsername());
794 final Element password = new Element("password").setContent(account.getPassword());
795 register.query("jabber:iq:register").addChild(username);
796 register.query().addChild(password);
797 sendIqPacket(register, createPacketReceiveHandler());
798 } else if (packet.getType() == IqPacket.TYPE.RESULT
799 && (packet.query().hasChild("x", "jabber:x:data"))) {
800 final Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
801 final Element blob = packet.query().findChild("data", "urn:xmpp:bob");
802 final String id = packet.getId();
803
804 Bitmap captcha = null;
805 if (blob != null) {
806 try {
807 final String base64Blob = blob.getContent();
808 final byte[] strBlob = Base64.decode(base64Blob, Base64.DEFAULT);
809 InputStream stream = new ByteArrayInputStream(strBlob);
810 captcha = BitmapFactory.decodeStream(stream);
811 } catch (Exception e) {
812 //ignored
813 }
814 } else {
815 try {
816 Field url = data.getFieldByName("url");
817 String urlString = url.findChildContent("value");
818 URL uri = new URL(urlString);
819 captcha = BitmapFactory.decodeStream(uri.openConnection().getInputStream());
820 } catch (IOException e) {
821 Log.e(Config.LOGTAG, e.toString());
822 }
823 }
824
825 if (captcha != null) {
826 failed = !mXmppConnectionService.displayCaptchaRequest(account, id, data, captcha);
827 }
828 } else {
829 failed = true;
830 }
831
832 if (failed) {
833 final Element instructions = packet.query().findChild("instructions");
834 setAccountCreationFailed((instructions != null) ? instructions.getContent() : "");
835 }
836 }
837 });
838 }
839
840 private void setAccountCreationFailed(String instructions) {
841 changeStatus(Account.State.REGISTRATION_FAILED);
842 disconnect(true);
843 Log.d(Config.LOGTAG, account.getJid().toBareJid()
844 + ": could not register. instructions are"
845 + instructions);
846 }
847
848 private void sendBindRequest() {
849 while(!mXmppConnectionService.areMessagesInitialized() && socket != null && !socket.isClosed()) {
850 try {
851 Thread.sleep(500);
852 } catch (final InterruptedException ignored) {
853 }
854 }
855 needsBinding = false;
856 clearIqCallbacks();
857 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
858 iq.addChild("bind", "urn:ietf:params:xml:ns:xmpp-bind")
859 .addChild("resource").setContent(account.getResource());
860 this.sendUnmodifiedIqPacket(iq, new OnIqPacketReceived() {
861 @Override
862 public void onIqPacketReceived(final Account account, final IqPacket packet) {
863 if (packet.getType() == IqPacket.TYPE.TIMEOUT) {
864 return;
865 }
866 final Element bind = packet.findChild("bind");
867 if (bind != null && packet.getType() == IqPacket.TYPE.RESULT) {
868 final Element jid = bind.findChild("jid");
869 if (jid != null && jid.getContent() != null) {
870 try {
871 account.setResource(Jid.fromString(jid.getContent()).getResourcepart());
872 } catch (final InvalidJidException e) {
873 // TODO: Handle the case where an external JID is technically invalid?
874 }
875 if (streamFeatures.hasChild("session")) {
876 sendStartSession();
877 } else {
878 sendPostBindInitialization();
879 }
880 } else {
881 Log.d(Config.LOGTAG, account.getJid() + ": disconnecting because of bind failure");
882 disconnect(true);
883 }
884 } else {
885 Log.d(Config.LOGTAG, account.getJid() + ": disconnecting because of bind failure");
886 disconnect(true);
887 }
888 }
889 });
890 }
891
892 private void clearIqCallbacks() {
893 final IqPacket failurePacket = new IqPacket(IqPacket.TYPE.TIMEOUT);
894 final ArrayList<OnIqPacketReceived> callbacks = new ArrayList<>();
895 synchronized (this.packetCallbacks) {
896 if (this.packetCallbacks.size() == 0) {
897 return;
898 }
899 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": clearing "+this.packetCallbacks.size()+" iq callbacks");
900 final Iterator<Pair<IqPacket, OnIqPacketReceived>> iterator = this.packetCallbacks.values().iterator();
901 while (iterator.hasNext()) {
902 Pair<IqPacket, OnIqPacketReceived> entry = iterator.next();
903 callbacks.add(entry.second);
904 iterator.remove();
905 }
906 }
907 for(OnIqPacketReceived callback : callbacks) {
908 callback.onIqPacketReceived(account,failurePacket);
909 }
910 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": done clearing iq callbacks. " + this.packetCallbacks.size() + " left");
911 }
912
913 private void sendStartSession() {
914 final IqPacket startSession = new IqPacket(IqPacket.TYPE.SET);
915 startSession.addChild("session", "urn:ietf:params:xml:ns:xmpp-session");
916 this.sendUnmodifiedIqPacket(startSession, new OnIqPacketReceived() {
917 @Override
918 public void onIqPacketReceived(Account account, IqPacket packet) {
919 if (packet.getType() == IqPacket.TYPE.RESULT) {
920 sendPostBindInitialization();
921 } else if (packet.getType() != IqPacket.TYPE.TIMEOUT) {
922 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not init sessions");
923 disconnect(true);
924 }
925 }
926 });
927 }
928
929 private void sendPostBindInitialization() {
930 smVersion = 0;
931 if (streamFeatures.hasChild("sm", "urn:xmpp:sm:3")) {
932 smVersion = 3;
933 } else if (streamFeatures.hasChild("sm", "urn:xmpp:sm:2")) {
934 smVersion = 2;
935 }
936 if (smVersion != 0) {
937 final EnablePacket enable = new EnablePacket(smVersion);
938 tagWriter.writeStanzaAsync(enable);
939 stanzasSent = 0;
940 mStanzaQueue.clear();
941 }
942 features.carbonsEnabled = false;
943 features.blockListRequested = false;
944 synchronized (this.disco) {
945 this.disco.clear();
946 }
947 sendServiceDiscoveryInfo(account.getServer());
948 sendServiceDiscoveryInfo(account.getJid().toBareJid());
949 sendServiceDiscoveryItems(account.getServer());
950 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": online with resource " + account.getResource());
951 this.lastSessionStarted = SystemClock.elapsedRealtime();
952 changeStatus(Account.State.ONLINE);
953 if (bindListener != null) {
954 bindListener.onBind(account);
955 }
956 }
957
958 private void sendServiceDiscoveryInfo(final Jid jid) {
959 final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
960 iq.setTo(jid);
961 iq.query("http://jabber.org/protocol/disco#info");
962 this.sendIqPacket(iq, new OnIqPacketReceived() {
963
964 @Override
965 public void onIqPacketReceived(final Account account, final IqPacket packet) {
966 if (packet.getType() == IqPacket.TYPE.RESULT) {
967 boolean advancedStreamFeaturesLoaded = false;
968 synchronized (XmppConnection.this.disco) {
969 final List<Element> elements = packet.query().getChildren();
970 final Info info = new Info();
971 for (final Element element : elements) {
972 if (element.getName().equals("identity")) {
973 String type = element.getAttribute("type");
974 String category = element.getAttribute("category");
975 String name = element.getAttribute("name");
976 if (type != null && category != null) {
977 info.identities.add(new Pair<>(category, type));
978 if (type.equals("im") && category.equals("server")) {
979 if (name != null && jid.equals(account.getServer())) {
980 switch (name) {
981 case "Prosody":
982 mServerIdentity = Identity.PROSODY;
983 break;
984 case "ejabberd":
985 mServerIdentity = Identity.EJABBERD;
986 break;
987 case "Slack-XMPP":
988 mServerIdentity = Identity.SLACK;
989 break;
990 }
991 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": server name: " + name);
992 }
993 }
994 }
995 } else if (element.getName().equals("feature")) {
996 info.features.add(element.getAttribute("var"));
997 }
998 }
999 disco.put(jid, info);
1000 advancedStreamFeaturesLoaded = disco.containsKey(account.getServer())
1001 && disco.containsKey(account.getJid().toBareJid());
1002 }
1003 if (advancedStreamFeaturesLoaded && (jid.equals(account.getServer()) || jid.equals(account.getJid().toBareJid()))) {
1004 enableAdvancedStreamFeatures();
1005 }
1006 } else {
1007 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not query disco info for " + jid.toString());
1008 }
1009 }
1010 });
1011 }
1012
1013 private void enableAdvancedStreamFeatures() {
1014 if (getFeatures().carbons() && !features.carbonsEnabled) {
1015 sendEnableCarbons();
1016 }
1017 if (getFeatures().blocking() && !features.blockListRequested) {
1018 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": Requesting block list");
1019 this.sendIqPacket(getIqGenerator().generateGetBlockList(), mXmppConnectionService.getIqParser());
1020 }
1021 for (final OnAdvancedStreamFeaturesLoaded listener : advancedStreamFeaturesLoadedListeners) {
1022 listener.onAdvancedStreamFeaturesAvailable(account);
1023 }
1024 }
1025
1026 private void sendServiceDiscoveryItems(final Jid server) {
1027 final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
1028 iq.setTo(server.toDomainJid());
1029 iq.query("http://jabber.org/protocol/disco#items");
1030 this.sendIqPacket(iq, new OnIqPacketReceived() {
1031
1032 @Override
1033 public void onIqPacketReceived(final Account account, final IqPacket packet) {
1034 if (packet.getType() == IqPacket.TYPE.RESULT) {
1035 final List<Element> elements = packet.query().getChildren();
1036 for (final Element element : elements) {
1037 if (element.getName().equals("item")) {
1038 final Jid jid = element.getAttributeAsJid("jid");
1039 if (jid != null && !jid.equals(account.getServer())) {
1040 sendServiceDiscoveryInfo(jid);
1041 }
1042 }
1043 }
1044 } else {
1045 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not query disco items of "+server);
1046 }
1047 }
1048 });
1049 }
1050
1051 private void sendEnableCarbons() {
1052 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
1053 iq.addChild("enable", "urn:xmpp:carbons:2");
1054 this.sendIqPacket(iq, new OnIqPacketReceived() {
1055
1056 @Override
1057 public void onIqPacketReceived(final Account account, final IqPacket packet) {
1058 if (!packet.hasChild("error")) {
1059 Log.d(Config.LOGTAG, account.getJid().toBareJid()
1060 + ": successfully enabled carbons");
1061 features.carbonsEnabled = true;
1062 } else {
1063 Log.d(Config.LOGTAG, account.getJid().toBareJid()
1064 + ": error enableing carbons " + packet.toString());
1065 }
1066 }
1067 });
1068 }
1069
1070 private void processStreamError(final Tag currentTag)
1071 throws XmlPullParserException, IOException {
1072 final Element streamError = tagReader.readElement(currentTag);
1073 if (streamError != null && streamError.hasChild("conflict")) {
1074 final String resource = account.getResource().split("\\.")[0];
1075 account.setResource(resource + "." + nextRandomId());
1076 Log.d(Config.LOGTAG,
1077 account.getJid().toBareJid() + ": switching resource due to conflict ("
1078 + account.getResource() + ")");
1079 } else if (streamError != null) {
1080 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": stream error "+streamError.toString());
1081 }
1082 }
1083
1084 private void sendStartStream() throws IOException {
1085 final Tag stream = Tag.start("stream:stream");
1086 stream.setAttribute("to", account.getServer().toString());
1087 stream.setAttribute("version", "1.0");
1088 stream.setAttribute("xml:lang", "en");
1089 stream.setAttribute("xmlns", "jabber:client");
1090 stream.setAttribute("xmlns:stream", "http://etherx.jabber.org/streams");
1091 tagWriter.writeTag(stream);
1092 }
1093
1094 private String nextRandomId() {
1095 return new BigInteger(50, mXmppConnectionService.getRNG()).toString(32);
1096 }
1097
1098 public void sendIqPacket(final IqPacket packet, final OnIqPacketReceived callback) {
1099 packet.setFrom(account.getJid());
1100 this.sendUnmodifiedIqPacket(packet, callback);
1101
1102 }
1103
1104 private synchronized void sendUnmodifiedIqPacket(final IqPacket packet, final OnIqPacketReceived callback) {
1105 if (packet.getId() == null) {
1106 final String id = nextRandomId();
1107 packet.setAttribute("id", id);
1108 }
1109 if (callback != null) {
1110 synchronized (this.packetCallbacks) {
1111 packetCallbacks.put(packet.getId(), new Pair<>(packet, callback));
1112 }
1113 }
1114 this.sendPacket(packet);
1115 }
1116
1117 public void sendMessagePacket(final MessagePacket packet) {
1118 this.sendPacket(packet);
1119 }
1120
1121 public void sendPresencePacket(final PresencePacket packet) {
1122 this.sendPacket(packet);
1123 }
1124
1125 private synchronized void sendPacket(final AbstractStanza packet) {
1126 if (stanzasSent == Integer.MAX_VALUE) {
1127 resetStreamId();
1128 disconnect(true);
1129 return;
1130 }
1131 tagWriter.writeStanzaAsync(packet);
1132 if (packet instanceof AbstractAcknowledgeableStanza) {
1133 AbstractAcknowledgeableStanza stanza = (AbstractAcknowledgeableStanza) packet;
1134 ++stanzasSent;
1135 this.mStanzaQueue.put(stanzasSent, stanza);
1136 if (stanza instanceof MessagePacket && stanza.getId() != null && getFeatures().sm()) {
1137 if (Config.EXTENDED_SM_LOGGING) {
1138 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": requesting ack for message stanza #" + stanzasSent);
1139 }
1140 tagWriter.writeStanzaAsync(new RequestPacket(this.smVersion));
1141 }
1142 }
1143 }
1144
1145 public void sendPing() {
1146 if (!r()) {
1147 final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
1148 iq.setFrom(account.getJid());
1149 iq.addChild("ping", "urn:xmpp:ping");
1150 this.sendIqPacket(iq, null);
1151 }
1152 this.lastPingSent = SystemClock.elapsedRealtime();
1153 }
1154
1155 public void setOnMessagePacketReceivedListener(
1156 final OnMessagePacketReceived listener) {
1157 this.messageListener = listener;
1158 }
1159
1160 public void setOnUnregisteredIqPacketReceivedListener(
1161 final OnIqPacketReceived listener) {
1162 this.unregisteredIqListener = listener;
1163 }
1164
1165 public void setOnPresencePacketReceivedListener(
1166 final OnPresencePacketReceived listener) {
1167 this.presenceListener = listener;
1168 }
1169
1170 public void setOnJinglePacketReceivedListener(
1171 final OnJinglePacketReceived listener) {
1172 this.jingleListener = listener;
1173 }
1174
1175 public void setOnStatusChangedListener(final OnStatusChanged listener) {
1176 this.statusListener = listener;
1177 }
1178
1179 public void setOnBindListener(final OnBindListener listener) {
1180 this.bindListener = listener;
1181 }
1182
1183 public void setOnMessageAcknowledgeListener(final OnMessageAcknowledged listener) {
1184 this.acknowledgedListener = listener;
1185 }
1186
1187 public void addOnAdvancedStreamFeaturesAvailableListener(final OnAdvancedStreamFeaturesLoaded listener) {
1188 if (!this.advancedStreamFeaturesLoadedListeners.contains(listener)) {
1189 this.advancedStreamFeaturesLoadedListeners.add(listener);
1190 }
1191 }
1192
1193 public void disconnect(final boolean force) {
1194 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": disconnecting force="+Boolean.valueOf(force));
1195 if (force) {
1196 try {
1197 socket.close();
1198 } catch(Exception e) {
1199 Log.d(Config.LOGTAG,account.getJid().toBareJid().toString()+": exception during force close ("+e.getMessage()+")");
1200 }
1201 return;
1202 } else {
1203 resetStreamId();
1204 if (tagWriter.isActive()) {
1205 tagWriter.finish();
1206 try {
1207 int i = 0;
1208 boolean warned = false;
1209 while (!tagWriter.finished() && socket.isConnected() && i <= 10) {
1210 if (!warned) {
1211 Log.d(Config.LOGTAG, account.getJid().toBareJid()+": waiting for tag writer to finish");
1212 warned = true;
1213 }
1214 Thread.sleep(200);
1215 i++;
1216 }
1217 if (warned) {
1218 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": tag writer has finished");
1219 }
1220 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": closing stream");
1221 tagWriter.writeTag(Tag.end("stream:stream"));
1222 } catch (final IOException e) {
1223 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": io exception during disconnect ("+e.getMessage()+")");
1224 } catch (final InterruptedException e) {
1225 Log.d(Config.LOGTAG, "interrupted");
1226 }
1227 }
1228 }
1229 }
1230
1231 public void resetStreamId() {
1232 this.streamId = null;
1233 }
1234
1235 public List<Jid> findDiscoItemsByFeature(final String feature) {
1236 synchronized (this.disco) {
1237 final List<Jid> items = new ArrayList<>();
1238 for (final Entry<Jid, Info> cursor : this.disco.entrySet()) {
1239 if (cursor.getValue().features.contains(feature)) {
1240 items.add(cursor.getKey());
1241 }
1242 }
1243 return items;
1244 }
1245 }
1246
1247 public Jid findDiscoItemByFeature(final String feature) {
1248 final List<Jid> items = findDiscoItemsByFeature(feature);
1249 if (items.size() >= 1) {
1250 return items.get(0);
1251 }
1252 return null;
1253 }
1254
1255 public boolean r() {
1256 if (getFeatures().sm()) {
1257 this.tagWriter.writeStanzaAsync(new RequestPacket(smVersion));
1258 return true;
1259 } else {
1260 return false;
1261 }
1262 }
1263
1264 public String getMucServer() {
1265 synchronized (this.disco) {
1266 for (final Entry<Jid, Info> cursor : disco.entrySet()) {
1267 final Info value = cursor.getValue();
1268 if (value.features.contains("http://jabber.org/protocol/muc")
1269 && !value.features.contains("jabber:iq:gateway")
1270 && !value.identities.contains(new Pair<>("conference", "irc"))) {
1271 return cursor.getKey().toString();
1272 }
1273 }
1274 }
1275 return null;
1276 }
1277
1278 public int getTimeToNextAttempt() {
1279 final int interval = (int) (25 * Math.pow(1.5, attempt));
1280 final int secondsSinceLast = (int) ((SystemClock.elapsedRealtime() - this.lastConnect) / 1000);
1281 return interval - secondsSinceLast;
1282 }
1283
1284 public int getAttempt() {
1285 return this.attempt;
1286 }
1287
1288 public Features getFeatures() {
1289 return this.features;
1290 }
1291
1292 public long getLastSessionEstablished() {
1293 final long diff = SystemClock.elapsedRealtime() - this.lastSessionStarted;
1294 return System.currentTimeMillis() - diff;
1295 }
1296
1297 public long getLastConnect() {
1298 return this.lastConnect;
1299 }
1300
1301 public long getLastPingSent() {
1302 return this.lastPingSent;
1303 }
1304
1305 public long getLastPacketReceived() {
1306 return this.lastPacketReceived;
1307 }
1308
1309 public void sendActive() {
1310 this.sendPacket(new ActivePacket());
1311 }
1312
1313 public void sendInactive() {
1314 this.sendPacket(new InactivePacket());
1315 }
1316
1317 public void resetAttemptCount() {
1318 this.attempt = 0;
1319 this.lastConnect = 0;
1320 }
1321
1322 public void setInteractive(boolean interactive) {
1323 this.mInteractive = interactive;
1324 }
1325
1326 public Identity getServerIdentity() {
1327 return mServerIdentity;
1328 }
1329
1330 private class Info {
1331 public final ArrayList<String> features = new ArrayList<>();
1332 public final ArrayList<Pair<String,String>> identities = new ArrayList<>();
1333 }
1334
1335 private class UnauthorizedException extends IOException {
1336
1337 }
1338
1339 private class SecurityException extends IOException {
1340
1341 }
1342
1343 private class IncompatibleServerException extends IOException {
1344
1345 }
1346
1347 private class DnsTimeoutException extends IOException {
1348
1349 }
1350 public enum Identity {
1351 FACEBOOK,
1352 SLACK,
1353 EJABBERD,
1354 PROSODY,
1355 UNKNOWN
1356 }
1357
1358 public class Features {
1359 XmppConnection connection;
1360 private boolean carbonsEnabled = false;
1361 private boolean encryptionEnabled = false;
1362 private boolean blockListRequested = false;
1363
1364 public Features(final XmppConnection connection) {
1365 this.connection = connection;
1366 }
1367
1368 private boolean hasDiscoFeature(final Jid server, final String feature) {
1369 synchronized (XmppConnection.this.disco) {
1370 return connection.disco.containsKey(server) &&
1371 connection.disco.get(server).features.contains(feature);
1372 }
1373 }
1374
1375 public boolean carbons() {
1376 return hasDiscoFeature(account.getServer(), "urn:xmpp:carbons:2");
1377 }
1378
1379 public boolean blocking() {
1380 return hasDiscoFeature(account.getServer(), Xmlns.BLOCKING);
1381 }
1382
1383 public boolean register() {
1384 return hasDiscoFeature(account.getServer(), Xmlns.REGISTER);
1385 }
1386
1387 public boolean sm() {
1388 return streamId != null
1389 || (connection.streamFeatures != null && connection.streamFeatures.hasChild("sm"));
1390 }
1391
1392 public boolean csi() {
1393 return connection.streamFeatures != null && connection.streamFeatures.hasChild("csi", "urn:xmpp:csi:0");
1394 }
1395
1396 public boolean pep() {
1397 synchronized (XmppConnection.this.disco) {
1398 final Pair<String, String> needle = new Pair<>("pubsub", "pep");
1399 Info info = disco.get(account.getServer());
1400 if (info != null && info.identities.contains(needle)) {
1401 return true;
1402 } else {
1403 info = disco.get(account.getJid().toBareJid());
1404 return info != null && info.identities.contains(needle);
1405 }
1406 }
1407 }
1408
1409 public boolean mam() {
1410 if (hasDiscoFeature(account.getJid().toBareJid(), "urn:xmpp:mam:0")) {
1411 return true;
1412 } else {
1413 return hasDiscoFeature(account.getServer(), "urn:xmpp:mam:0");
1414 }
1415 }
1416
1417 public boolean advancedStreamFeaturesLoaded() {
1418 synchronized (XmppConnection.this.disco) {
1419 return disco.containsKey(account.getServer());
1420 }
1421 }
1422
1423 public boolean rosterVersioning() {
1424 return connection.streamFeatures != null && connection.streamFeatures.hasChild("ver");
1425 }
1426
1427 public void setBlockListRequested(boolean value) {
1428 this.blockListRequested = value;
1429 }
1430
1431 public boolean httpUpload() {
1432 return !Config.DISABLE_HTTP_UPLOAD && findDiscoItemsByFeature(Xmlns.HTTP_UPLOAD).size() > 0;
1433 }
1434 }
1435
1436 private IqGenerator getIqGenerator() {
1437 return mXmppConnectionService.getIqGenerator();
1438 }
1439}