1package eu.siacs.conversations.xmpp;
2
3import java.io.IOException;
4import java.io.InputStream;
5import java.io.OutputStream;
6import java.math.BigInteger;
7import java.net.Socket;
8import java.net.UnknownHostException;
9import java.security.KeyManagementException;
10import java.security.KeyStore;
11import java.security.KeyStoreException;
12import java.security.MessageDigest;
13import java.security.NoSuchAlgorithmException;
14import java.security.SecureRandom;
15import java.security.cert.CertPathValidatorException;
16import java.security.cert.CertificateException;
17import java.security.cert.X509Certificate;
18import java.util.ArrayList;
19import java.util.HashSet;
20import java.util.Hashtable;
21import java.util.List;
22
23import javax.net.ssl.SSLContext;
24import javax.net.ssl.SSLSocket;
25import javax.net.ssl.SSLSocketFactory;
26import javax.net.ssl.TrustManager;
27import javax.net.ssl.TrustManagerFactory;
28import javax.net.ssl.X509TrustManager;
29
30import org.json.JSONException;
31import org.xmlpull.v1.XmlPullParserException;
32
33import android.os.Bundle;
34import android.os.PowerManager;
35import android.os.PowerManager.WakeLock;
36import android.os.SystemClock;
37import android.util.Log;
38import eu.siacs.conversations.entities.Account;
39import eu.siacs.conversations.utils.CryptoHelper;
40import eu.siacs.conversations.utils.DNSHelper;
41import eu.siacs.conversations.xml.Element;
42import eu.siacs.conversations.xml.Tag;
43import eu.siacs.conversations.xml.TagWriter;
44import eu.siacs.conversations.xml.XmlReader;
45import eu.siacs.conversations.xmpp.stanzas.AbstractStanza;
46import eu.siacs.conversations.xmpp.stanzas.IqPacket;
47import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
48import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
49import eu.siacs.conversations.xmpp.stanzas.jingle.JinglePacket;
50import eu.siacs.conversations.xmpp.stanzas.streammgmt.AckPacket;
51import eu.siacs.conversations.xmpp.stanzas.streammgmt.EnablePacket;
52import eu.siacs.conversations.xmpp.stanzas.streammgmt.RequestPacket;
53import eu.siacs.conversations.xmpp.stanzas.streammgmt.ResumePacket;
54
55public class XmppConnection implements Runnable {
56
57 protected Account account;
58 private static final String LOGTAG = "xmppService";
59
60 private PowerManager.WakeLock wakeLock;
61
62 private SecureRandom random = new SecureRandom();
63
64 private Socket socket;
65 private XmlReader tagReader;
66 private TagWriter tagWriter;
67
68 private boolean shouldBind = true;
69 private boolean shouldAuthenticate = true;
70 private Element streamFeatures;
71 private HashSet<String> discoFeatures = new HashSet<String>();
72 private List<String> discoItems = new ArrayList<String>();
73
74 private String streamId = null;
75
76 private int stanzasReceived = 0;
77 private int stanzasSent = 0;
78
79 public long lastPaketReceived = 0;
80 public long lastPingSent = 0;
81 public long lastConnect = 0;
82 public long lastSessionStarted = 0;
83
84 private static final int PACKET_IQ = 0;
85 private static final int PACKET_MESSAGE = 1;
86 private static final int PACKET_PRESENCE = 2;
87
88 private Hashtable<String, PacketReceived> packetCallbacks = new Hashtable<String, PacketReceived>();
89 private OnPresencePacketReceived presenceListener = null;
90 private OnJinglePacketReceived jingleListener = null;
91 private OnIqPacketReceived unregisteredIqListener = null;
92 private OnMessagePacketReceived messageListener = null;
93 private OnStatusChanged statusListener = null;
94 private OnTLSExceptionReceived tlsListener = null;
95 private OnBindListener bindListener = null;
96
97 public XmppConnection(Account account, WakeLock wakeLock) {
98 this.account = account;
99 this.wakeLock = wakeLock;
100 tagReader = new XmlReader(wakeLock);
101 tagWriter = new TagWriter();
102 }
103
104 protected void changeStatus(int nextStatus) {
105 if (account.getStatus() != nextStatus) {
106 if ((nextStatus == Account.STATUS_OFFLINE)&&(account.getStatus() != Account.STATUS_CONNECTING)&&(account.getStatus() != Account.STATUS_ONLINE)) {
107 return;
108 }
109 account.setStatus(nextStatus);
110 if (statusListener != null) {
111 statusListener.onStatusChanged(account);
112 }
113 }
114 }
115
116 protected void connect() {
117 Log.d(LOGTAG,account.getJid()+ ": connecting");
118 lastConnect = SystemClock.elapsedRealtime();
119 try {
120 shouldAuthenticate = shouldBind = !account.isOptionSet(Account.OPTION_REGISTER);
121 tagReader = new XmlReader(wakeLock);
122 tagWriter = new TagWriter();
123 packetCallbacks.clear();
124 this.changeStatus(Account.STATUS_CONNECTING);
125 Bundle namePort = DNSHelper.getSRVRecord(account.getServer());
126 if ("timeout".equals(namePort.getString("error"))) {
127 Log.d(LOGTAG,account.getJid()+": dns timeout");
128 this.changeStatus(Account.STATUS_OFFLINE);
129 return;
130 }
131 String srvRecordServer = namePort.getString("name");
132 int srvRecordPort = namePort.getInt("port");
133 if (srvRecordServer != null) {
134 Log.d(LOGTAG, account.getJid() + ": using values from dns "
135 + srvRecordServer + ":" + srvRecordPort);
136 socket = new Socket(srvRecordServer, srvRecordPort);
137 } else {
138 socket = new Socket(account.getServer(), 5222);
139 }
140 OutputStream out = socket.getOutputStream();
141 tagWriter.setOutputStream(out);
142 InputStream in = socket.getInputStream();
143 tagReader.setInputStream(in);
144 tagWriter.beginDocument();
145 sendStartStream();
146 Tag nextTag;
147 while ((nextTag = tagReader.readTag()) != null) {
148 if (nextTag.isStart("stream")) {
149 processStream(nextTag);
150 break;
151 } else {
152 Log.d(LOGTAG, "found unexpected tag: " + nextTag.getName());
153 return;
154 }
155 }
156 if (socket.isConnected()) {
157 socket.close();
158 }
159 } catch (UnknownHostException e) {
160 this.changeStatus(Account.STATUS_SERVER_NOT_FOUND);
161 if (wakeLock.isHeld()) {
162 wakeLock.release();
163 }
164 return;
165 } catch (IOException e) {
166 if (account.getStatus() != Account.STATUS_TLS_ERROR) {
167 this.changeStatus(Account.STATUS_OFFLINE);
168 }
169 if (wakeLock.isHeld()) {
170 wakeLock.release();
171 }
172 return;
173 } catch (XmlPullParserException e) {
174 this.changeStatus(Account.STATUS_OFFLINE);
175 Log.d(LOGTAG, "xml exception " + e.getMessage());
176 if (wakeLock.isHeld()) {
177 wakeLock.release();
178 }
179 return;
180 }
181
182 }
183
184 @Override
185 public void run() {
186 connect();
187 }
188
189 private void processStream(Tag currentTag) throws XmlPullParserException,
190 IOException {
191 Tag nextTag = tagReader.readTag();
192 while ((nextTag != null) && (!nextTag.isEnd("stream"))) {
193 if (nextTag.isStart("error")) {
194 processStreamError(nextTag);
195 } else if (nextTag.isStart("features")) {
196 processStreamFeatures(nextTag);
197 if ((streamFeatures.getChildren().size() == 1)
198 && (streamFeatures.hasChild("starttls"))
199 && (!account.isOptionSet(Account.OPTION_USETLS))) {
200 changeStatus(Account.STATUS_SERVER_REQUIRES_TLS);
201 }
202 } else if (nextTag.isStart("proceed")) {
203 switchOverToTls(nextTag);
204 } else if (nextTag.isStart("success")) {
205 Log.d(LOGTAG, account.getJid()
206 + ": logged in");
207 tagReader.readTag();
208 tagReader.reset();
209 sendStartStream();
210 processStream(tagReader.readTag());
211 break;
212 } else if (nextTag.isStart("failure")) {
213 tagReader.readElement(nextTag);
214 changeStatus(Account.STATUS_UNAUTHORIZED);
215 } else if (nextTag.isStart("challenge")) {
216 String challange = tagReader.readElement(nextTag).getContent();
217 Log.d(LOGTAG,"a challange arrived! "+challange);
218 } else if (nextTag.isStart("enabled")) {
219 this.stanzasSent = 0;
220 Element enabled = tagReader.readElement(nextTag);
221 if ("true".equals(enabled.getAttribute("resume"))) {
222 this.streamId = enabled.getAttribute("id");
223 Log.d(LOGTAG,account.getJid()+": stream managment enabled (resumable)");
224 } else {
225 Log.d(LOGTAG,account.getJid()+": stream managment enabled");
226 }
227 this.lastSessionStarted = SystemClock.elapsedRealtime();
228 this.stanzasReceived = 0;
229 RequestPacket r = new RequestPacket();
230 tagWriter.writeStanzaAsync(r);
231 } else if (nextTag.isStart("resumed")) {
232 tagReader.readElement(nextTag);
233 sendPing();
234 changeStatus(Account.STATUS_ONLINE);
235 Log.d(LOGTAG,account.getJid()+": session resumed");
236 } else if (nextTag.isStart("r")) {
237 tagReader.readElement(nextTag);
238 AckPacket ack = new AckPacket(this.stanzasReceived);
239 //Log.d(LOGTAG,ack.toString());
240 tagWriter.writeStanzaAsync(ack);
241 } else if (nextTag.isStart("a")) {
242 Element ack = tagReader.readElement(nextTag);
243 lastPaketReceived = SystemClock.elapsedRealtime();
244 int serverSequence = Integer.parseInt(ack.getAttribute("h"));
245 if (serverSequence>this.stanzasSent) {
246 this.stanzasSent = serverSequence;
247 }
248 //Log.d(LOGTAG,"server ack"+ack.toString()+" ("+this.stanzasSent+")");
249 } else if (nextTag.isStart("failed")) {
250 tagReader.readElement(nextTag);
251 Log.d(LOGTAG,account.getJid()+": resumption failed");
252 streamId = null;
253 if (account.getStatus() != Account.STATUS_ONLINE) {
254 sendBindRequest();
255 }
256 } else if (nextTag.isStart("iq")) {
257 processIq(nextTag);
258 } else if (nextTag.isStart("message")) {
259 processMessage(nextTag);
260 } else if (nextTag.isStart("presence")) {
261 processPresence(nextTag);
262 } else {
263 Log.d(LOGTAG, "found unexpected tag: " + nextTag.getName()
264 + " as child of " + currentTag.getName());
265 }
266 nextTag = tagReader.readTag();
267 }
268 if (account.getStatus() == Account.STATUS_ONLINE) {
269 account.setStatus(Account.STATUS_OFFLINE);
270 if (statusListener != null) {
271 statusListener.onStatusChanged(account);
272 }
273 }
274 }
275
276 private Element processPacket(Tag currentTag, int packetType)
277 throws XmlPullParserException, IOException {
278 Element element;
279 switch (packetType) {
280 case PACKET_IQ:
281 element = new IqPacket();
282 break;
283 case PACKET_MESSAGE:
284 element = new MessagePacket();
285 break;
286 case PACKET_PRESENCE:
287 element = new PresencePacket();
288 break;
289 default:
290 return null;
291 }
292 element.setAttributes(currentTag.getAttributes());
293 Tag nextTag = tagReader.readTag();
294 while (!nextTag.isEnd(element.getName())) {
295 if (!nextTag.isNo()) {
296 Element child = tagReader.readElement(nextTag);
297 if ((packetType == PACKET_IQ)&&("jingle".equals(child.getName()))) {
298 element = new JinglePacket();
299 element.setAttributes(currentTag.getAttributes());
300 }
301 element.addChild(child);
302 }
303 nextTag = tagReader.readTag();
304 }
305 ++stanzasReceived;
306 lastPaketReceived = SystemClock.elapsedRealtime();
307 return element;
308 }
309
310 private void processIq(Tag currentTag) throws XmlPullParserException,
311 IOException {
312 IqPacket packet = (IqPacket) processPacket(currentTag, PACKET_IQ);
313
314 if (packet instanceof JinglePacket) {
315 if (this.jingleListener !=null) {
316 this.jingleListener.onJinglePacketReceived(account, (JinglePacket) packet);
317 }
318 } else {
319 if (packetCallbacks.containsKey(packet.getId())) {
320 if (packetCallbacks.get(packet.getId()) instanceof OnIqPacketReceived) {
321 ((OnIqPacketReceived) packetCallbacks.get(packet.getId()))
322 .onIqPacketReceived(account, packet);
323 }
324
325 packetCallbacks.remove(packet.getId());
326 } else if (this.unregisteredIqListener != null) {
327 this.unregisteredIqListener.onIqPacketReceived(account, packet);
328 }
329 }
330 }
331
332 private void processMessage(Tag currentTag) throws XmlPullParserException,
333 IOException {
334 MessagePacket packet = (MessagePacket) processPacket(currentTag,
335 PACKET_MESSAGE);
336 String id = packet.getAttribute("id");
337 if ((id != null) && (packetCallbacks.containsKey(id))) {
338 if (packetCallbacks.get(id) instanceof OnMessagePacketReceived) {
339 ((OnMessagePacketReceived) packetCallbacks.get(id))
340 .onMessagePacketReceived(account, packet);
341 }
342 packetCallbacks.remove(id);
343 } else if (this.messageListener != null) {
344 this.messageListener.onMessagePacketReceived(account, packet);
345 }
346 }
347
348 private void processPresence(Tag currentTag) throws XmlPullParserException,
349 IOException {
350 PresencePacket packet = (PresencePacket) processPacket(currentTag,
351 PACKET_PRESENCE);
352 String id = packet.getAttribute("id");
353 if ((id != null) && (packetCallbacks.containsKey(id))) {
354 if (packetCallbacks.get(id) instanceof OnPresencePacketReceived) {
355 ((OnPresencePacketReceived) packetCallbacks.get(id))
356 .onPresencePacketReceived(account, packet);
357 }
358 packetCallbacks.remove(id);
359 } else if (this.presenceListener != null) {
360 this.presenceListener.onPresencePacketReceived(account, packet);
361 }
362 }
363
364 private void sendStartTLS() throws IOException {
365 Tag startTLS = Tag.empty("starttls");
366 startTLS.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-tls");
367 tagWriter.writeTag(startTLS);
368 }
369
370 private void switchOverToTls(Tag currentTag) throws XmlPullParserException,
371 IOException {
372 Tag nextTag = tagReader.readTag(); // should be proceed end tag
373 try {
374 SSLContext sc = SSLContext.getInstance("TLS");
375 TrustManagerFactory tmf = TrustManagerFactory
376 .getInstance(TrustManagerFactory.getDefaultAlgorithm());
377 // Initialise the TMF as you normally would, for example:
378 // tmf.in
379 try {
380 tmf.init((KeyStore) null);
381 } catch (KeyStoreException e1) {
382 // TODO Auto-generated catch block
383 e1.printStackTrace();
384 }
385
386 TrustManager[] trustManagers = tmf.getTrustManagers();
387 final X509TrustManager origTrustmanager = (X509TrustManager) trustManagers[0];
388
389 TrustManager[] wrappedTrustManagers = new TrustManager[] { new X509TrustManager() {
390
391 @Override
392 public void checkClientTrusted(X509Certificate[] chain,
393 String authType) throws CertificateException {
394 origTrustmanager.checkClientTrusted(chain, authType);
395 }
396
397 @Override
398 public void checkServerTrusted(X509Certificate[] chain,
399 String authType) throws CertificateException {
400 try {
401 origTrustmanager.checkServerTrusted(chain, authType);
402 } catch (CertificateException e) {
403 if (e.getCause() instanceof CertPathValidatorException) {
404 String sha;
405 try {
406 MessageDigest sha1 = MessageDigest.getInstance("SHA1");
407 sha1.update(chain[0].getEncoded());
408 sha = CryptoHelper.bytesToHex(sha1.digest());
409 if (!sha.equals(account.getSSLFingerprint())) {
410 changeStatus(Account.STATUS_TLS_ERROR);
411 if (tlsListener!=null) {
412 tlsListener.onTLSExceptionReceived(sha,account);
413 }
414 throw new CertificateException();
415 }
416 } catch (NoSuchAlgorithmException e1) {
417 // TODO Auto-generated catch block
418 e1.printStackTrace();
419 }
420 } else {
421 throw new CertificateException();
422 }
423 }
424 }
425
426 @Override
427 public X509Certificate[] getAcceptedIssuers() {
428 return origTrustmanager.getAcceptedIssuers();
429 }
430
431 } };
432 sc.init(null, wrappedTrustManagers, null);
433 SSLSocketFactory factory = sc.getSocketFactory();
434 SSLSocket sslSocket = (SSLSocket) factory.createSocket(socket,
435 socket.getInetAddress().getHostAddress(), socket.getPort(),
436 true);
437 tagReader.setInputStream(sslSocket.getInputStream());
438 tagWriter.setOutputStream(sslSocket.getOutputStream());
439 sendStartStream();
440 Log.d(LOGTAG,account.getJid()+": TLS connection established");
441 processStream(tagReader.readTag());
442 sslSocket.close();
443 } catch (NoSuchAlgorithmException e1) {
444 // TODO Auto-generated catch block
445 e1.printStackTrace();
446 } catch (KeyManagementException e) {
447 // TODO Auto-generated catch block
448 e.printStackTrace();
449 }
450 }
451
452 private void sendSaslAuthPlain() throws IOException {
453 String saslString = CryptoHelper.saslPlain(account.getUsername(),
454 account.getPassword());
455 Element auth = new Element("auth");
456 auth.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-sasl");
457 auth.setAttribute("mechanism", "PLAIN");
458 auth.setContent(saslString);
459 tagWriter.writeElement(auth);
460 }
461
462 private void sendSaslAuthDigestMd5() throws IOException {
463 Element auth = new Element("auth");
464 auth.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-sasl");
465 auth.setAttribute("mechanism", "DIGEST-MD5");
466 tagWriter.writeElement(auth);
467 }
468
469 private void processStreamFeatures(Tag currentTag)
470 throws XmlPullParserException, IOException {
471 this.streamFeatures = tagReader.readElement(currentTag);
472 if (this.streamFeatures.hasChild("starttls")
473 && account.isOptionSet(Account.OPTION_USETLS)) {
474 sendStartTLS();
475 } else if (this.streamFeatures.hasChild("register")&&(account.isOptionSet(Account.OPTION_REGISTER))) {
476 sendRegistryRequest();
477 } else if (!this.streamFeatures.hasChild("register")&&(account.isOptionSet(Account.OPTION_REGISTER))) {
478 changeStatus(Account.STATUS_REGISTRATION_NOT_SUPPORTED);
479 disconnect(true);
480 } else if (this.streamFeatures.hasChild("mechanisms")
481 && shouldAuthenticate) {
482 List<String> mechanisms = extractMechanisms( streamFeatures.findChild("mechanisms"));
483 Log.d(LOGTAG,account.getJid()+": "+mechanisms.toString());
484 if (mechanisms.contains("PLAIN")) {
485 sendSaslAuthPlain();
486 } else if (mechanisms.contains("DIGEST-MD5")) {
487 sendSaslAuthDigestMd5();
488 }
489 } else if (this.streamFeatures.hasChild("sm") && streamId != null) {
490 Log.d(LOGTAG,"found old stream id. trying to remuse");
491 ResumePacket resume = new ResumePacket(this.streamId,stanzasReceived);
492 this.tagWriter.writeStanzaAsync(resume);
493 } else if (this.streamFeatures.hasChild("bind") && shouldBind) {
494 sendBindRequest();
495 if (this.streamFeatures.hasChild("session")) {
496 Log.d(LOGTAG,"sending session");
497 IqPacket startSession = new IqPacket(IqPacket.TYPE_SET);
498 startSession.addChild("session","urn:ietf:params:xml:ns:xmpp-session"); //setContent("")
499 this.sendIqPacket(startSession, null);
500 }
501 }
502 }
503
504 private List<String> extractMechanisms(Element stream) {
505 ArrayList<String> mechanisms = new ArrayList<String>(stream.getChildren().size());
506 for(Element child : stream.getChildren()) {
507 mechanisms.add(child.getContent());
508 }
509 return mechanisms;
510 }
511
512 private void sendRegistryRequest() {
513 IqPacket register = new IqPacket(IqPacket.TYPE_GET);
514 register.query("jabber:iq:register");
515 register.setTo(account.getServer());
516 sendIqPacket(register, new OnIqPacketReceived() {
517
518 @Override
519 public void onIqPacketReceived(Account account, IqPacket packet) {
520 Element instructions = packet.query().findChild("instructions");
521 if (packet.query().hasChild("username")&&(packet.query().hasChild("password"))) {
522 IqPacket register = new IqPacket(IqPacket.TYPE_SET);
523 Element username = new Element("username").setContent(account.getUsername());
524 Element password = new Element("password").setContent(account.getPassword());
525 register.query("jabber:iq:register").addChild(username);
526 register.query().addChild(password);
527 sendIqPacket(register, new OnIqPacketReceived() {
528
529 @Override
530 public void onIqPacketReceived(Account account, IqPacket packet) {
531 if (packet.getType()==IqPacket.TYPE_RESULT) {
532 account.setOption(Account.OPTION_REGISTER, false);
533 changeStatus(Account.STATUS_REGISTRATION_SUCCESSFULL);
534 } else if (packet.hasChild("error")&&(packet.findChild("error").hasChild("conflict"))){
535 changeStatus(Account.STATUS_REGISTRATION_CONFLICT);
536 } else {
537 changeStatus(Account.STATUS_REGISTRATION_FAILED);
538 Log.d(LOGTAG,packet.toString());
539 }
540 disconnect(true);
541 }
542 });
543 } else {
544 changeStatus(Account.STATUS_REGISTRATION_FAILED);
545 disconnect(true);
546 Log.d(LOGTAG,account.getJid()+": could not register. instructions are"+instructions.getContent());
547 }
548 }
549 });
550 }
551
552 private void sendInitialPresence() {
553 PresencePacket packet = new PresencePacket();
554 packet.setAttribute("from", account.getFullJid());
555 if (account.getKeys().has("pgp_signature")) {
556 try {
557 String signature = account.getKeys().getString("pgp_signature");
558 packet.addChild("status").setContent("online");
559 packet.addChild("x","jabber:x:signed").setContent(signature);
560 } catch (JSONException e) {
561 //
562 }
563 }
564 this.sendPresencePacket(packet);
565 }
566
567 private void sendBindRequest() throws IOException {
568 IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
569 iq.addChild("bind", "urn:ietf:params:xml:ns:xmpp-bind").addChild("resource").setContent(account.getResource());
570 this.sendIqPacket(iq, new OnIqPacketReceived() {
571 @Override
572 public void onIqPacketReceived(Account account, IqPacket packet) {
573 String resource = packet.findChild("bind").findChild("jid")
574 .getContent().split("/")[1];
575 account.setResource(resource);
576 if (streamFeatures.hasChild("sm")) {
577 EnablePacket enable = new EnablePacket();
578 tagWriter.writeStanzaAsync(enable);
579 }
580 sendInitialPresence();
581 sendServiceDiscoveryInfo();
582 sendServiceDiscoveryItems();
583 if (bindListener !=null) {
584 bindListener.onBind(account);
585 }
586 changeStatus(Account.STATUS_ONLINE);
587 }
588 });
589 }
590
591 private void sendServiceDiscoveryInfo() {
592 IqPacket iq = new IqPacket(IqPacket.TYPE_GET);
593 iq.setTo(account.getServer());
594 iq.query("http://jabber.org/protocol/disco#info");
595 this.sendIqPacket(iq, new OnIqPacketReceived() {
596
597 @Override
598 public void onIqPacketReceived(Account account, IqPacket packet) {
599 List<Element> elements = packet.query().getChildren();
600 for (int i = 0; i < elements.size(); ++i) {
601 if (elements.get(i).getName().equals("feature")) {
602 discoFeatures.add(elements.get(i).getAttribute(
603 "var"));
604 }
605 }
606 if (discoFeatures.contains("urn:xmpp:carbons:2")) {
607 sendEnableCarbons();
608 }
609 }
610 });
611 }
612 private void sendServiceDiscoveryItems() {
613 IqPacket iq = new IqPacket(IqPacket.TYPE_GET);
614 iq.setTo(account.getServer());
615 iq.query("http://jabber.org/protocol/disco#items");
616 this.sendIqPacket(iq, new OnIqPacketReceived() {
617
618 @Override
619 public void onIqPacketReceived(Account account, IqPacket packet) {
620 List<Element> elements = packet.query().getChildren();
621 for (int i = 0; i < elements.size(); ++i) {
622 if (elements.get(i).getName().equals("item")) {
623 discoItems.add(elements.get(i).getAttribute(
624 "jid"));
625 }
626 }
627 }
628 });
629 }
630
631 private void sendEnableCarbons() {
632 IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
633 iq.addChild("enable","urn:xmpp:carbons:2");
634 this.sendIqPacket(iq, new OnIqPacketReceived() {
635
636 @Override
637 public void onIqPacketReceived(Account account, IqPacket packet) {
638 if (!packet.hasChild("error")) {
639 Log.d(LOGTAG, account.getJid()
640 + ": successfully enabled carbons");
641 } else {
642 Log.d(LOGTAG, account.getJid()
643 + ": error enableing carbons " + packet.toString());
644 }
645 }
646 });
647 }
648
649 private void processStreamError(Tag currentTag) {
650 Log.d(LOGTAG, "processStreamError");
651 }
652
653 private void sendStartStream() throws IOException {
654 Tag stream = Tag.start("stream:stream");
655 stream.setAttribute("from", account.getJid());
656 stream.setAttribute("to", account.getServer());
657 stream.setAttribute("version", "1.0");
658 stream.setAttribute("xml:lang", "en");
659 stream.setAttribute("xmlns", "jabber:client");
660 stream.setAttribute("xmlns:stream", "http://etherx.jabber.org/streams");
661 tagWriter.writeTag(stream);
662 }
663
664 private String nextRandomId() {
665 return new BigInteger(50, random).toString(32);
666 }
667
668 public void sendIqPacket(IqPacket packet, OnIqPacketReceived callback) {
669 String id = nextRandomId();
670 packet.setAttribute("id", id);
671 this.sendPacket(packet, callback);
672 }
673
674 public void sendMessagePacket(MessagePacket packet) {
675 this.sendPacket(packet, null);
676 }
677
678 public void sendMessagePacket(MessagePacket packet,
679 OnMessagePacketReceived callback) {
680 this.sendPacket(packet, callback);
681 }
682
683 public void sendPresencePacket(PresencePacket packet) {
684 this.sendPacket(packet, null);
685 }
686
687 public void sendPresencePacket(PresencePacket packet,
688 OnPresencePacketReceived callback) {
689 this.sendPacket(packet, callback);
690 }
691
692 private synchronized void sendPacket(final AbstractStanza packet, PacketReceived callback) {
693 // TODO dont increment stanza count if packet = request packet or ack;
694 ++stanzasSent;
695 tagWriter.writeStanzaAsync(packet);
696 if (callback != null) {
697 if (packet.getId()==null) {
698 packet.setId(nextRandomId());
699 }
700 packetCallbacks.put(packet.getId(), callback);
701 }
702 }
703
704 public void sendPing() {
705 if (streamFeatures.hasChild("sm")) {
706 tagWriter.writeStanzaAsync(new RequestPacket());
707 } else {
708 IqPacket iq = new IqPacket(IqPacket.TYPE_GET);
709 iq.setFrom(account.getFullJid());
710 iq.addChild("ping","urn:xmpp:ping");
711 this.sendIqPacket(iq, null);
712 }
713 }
714
715 public void setOnMessagePacketReceivedListener(
716 OnMessagePacketReceived listener) {
717 this.messageListener = listener;
718 }
719
720 public void setOnUnregisteredIqPacketReceivedListener(
721 OnIqPacketReceived listener) {
722 this.unregisteredIqListener = listener;
723 }
724
725 public void setOnPresencePacketReceivedListener(
726 OnPresencePacketReceived listener) {
727 this.presenceListener = listener;
728 }
729
730 public void setOnJinglePacketReceivedListener(OnJinglePacketReceived listener) {
731 this.jingleListener = listener;
732 }
733
734 public void setOnStatusChangedListener(OnStatusChanged listener) {
735 this.statusListener = listener;
736 }
737
738 public void setOnTLSExceptionReceivedListener(OnTLSExceptionReceived listener) {
739 this.tlsListener = listener;
740 }
741
742 public void setOnBindListener(OnBindListener listener) {
743 this.bindListener = listener;
744 }
745
746 public void disconnect(boolean force) {
747 changeStatus(Account.STATUS_OFFLINE);
748 Log.d(LOGTAG,"disconnecting");
749 try {
750 if (force) {
751 socket.close();
752 return;
753 }
754 tagWriter.finish();
755 while(!tagWriter.finished()) {
756 //Log.d(LOGTAG,"not yet finished");
757 Thread.sleep(100);
758 }
759 tagWriter.writeTag(Tag.end("stream:stream"));
760 } catch (IOException e) {
761 Log.d(LOGTAG,"io exception during disconnect");
762 } catch (InterruptedException e) {
763 Log.d(LOGTAG,"interupted while waiting for disconnect");
764 }
765 }
766
767 public boolean hasFeatureRosterManagment() {
768 if (this.streamFeatures==null) {
769 return false;
770 } else {
771 return this.streamFeatures.hasChild("ver");
772 }
773 }
774
775 public boolean hasFeatureStreamManagment() {
776 if (this.streamFeatures==null) {
777 return false;
778 } else {
779 return this.streamFeatures.hasChild("sm");
780 }
781 }
782
783 public boolean hasFeaturesCarbon() {
784 return discoFeatures.contains("urn:xmpp:carbons:2");
785 }
786
787 public void r() {
788 this.tagWriter.writeStanzaAsync(new RequestPacket());
789 }
790
791 public int getReceivedStanzas() {
792 return this.stanzasReceived;
793 }
794
795 public int getSentStanzas() {
796 return this.stanzasSent;
797 }
798
799 public String getMucServer() {
800 for(int i = 0; i < discoItems.size(); ++i) {
801 if (discoItems.get(i).contains("conference.")) {
802 return discoItems.get(i);
803 } else if (discoItems.get(i).contains("conf.")) {
804 return discoItems.get(i);
805 } else if (discoItems.get(i).contains("muc.")) {
806 return discoItems.get(i);
807 }
808 }
809 return null;
810 }
811}