1package eu.siacs.conversations.xmpp.jingle;
2
3import java.util.ArrayList;
4import java.util.Arrays;
5import java.util.HashMap;
6import java.util.Iterator;
7import java.util.List;
8import java.util.Locale;
9import java.util.Map.Entry;
10
11import android.graphics.BitmapFactory;
12import android.util.Log;
13import eu.siacs.conversations.entities.Account;
14import eu.siacs.conversations.entities.Conversation;
15import eu.siacs.conversations.entities.Message;
16import eu.siacs.conversations.services.XmppConnectionService;
17import eu.siacs.conversations.xml.Element;
18import eu.siacs.conversations.xmpp.OnIqPacketReceived;
19import eu.siacs.conversations.xmpp.jingle.stanzas.Content;
20import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
21import eu.siacs.conversations.xmpp.jingle.stanzas.Reason;
22import eu.siacs.conversations.xmpp.stanzas.IqPacket;
23
24public class JingleConnection {
25
26 private final String[] extensions = {"webp","jpeg","jpg","png"};
27 private final String[] cryptoExtensions = {"pgp","gpg","otr"};
28
29 private JingleConnectionManager mJingleConnectionManager;
30 private XmppConnectionService mXmppConnectionService;
31
32 public static final int STATUS_INITIATED = 0;
33 public static final int STATUS_ACCEPTED = 1;
34 public static final int STATUS_TERMINATED = 2;
35 public static final int STATUS_CANCELED = 3;
36 public static final int STATUS_FINISHED = 4;
37 public static final int STATUS_TRANSMITTING = 5;
38 public static final int STATUS_FAILED = 99;
39
40 private int ibbBlockSize = 4096;
41
42 private int status = -1;
43 private Message message;
44 private String sessionId;
45 private Account account;
46 private String initiator;
47 private String responder;
48 private List<JingleCandidate> candidates = new ArrayList<JingleCandidate>();
49 private HashMap<String, JingleSocks5Transport> connections = new HashMap<String, JingleSocks5Transport>();
50
51 private String transportId;
52 private Element fileOffer;
53 private JingleFile file = null;
54
55 private String contentName;
56 private String contentCreator;
57
58 private boolean receivedCandidate = false;
59 private boolean sentCandidate = false;
60
61 private boolean acceptedAutomatically = false;
62
63 private JingleTransport transport = null;
64
65 private OnIqPacketReceived responseListener = new OnIqPacketReceived() {
66
67 @Override
68 public void onIqPacketReceived(Account account, IqPacket packet) {
69 if (packet.getType() == IqPacket.TYPE_ERROR) {
70 if (initiator.equals(account.getFullJid())) {
71 mXmppConnectionService.markMessage(message, Message.STATUS_SEND_FAILED);
72 }
73 status = STATUS_FAILED;
74 }
75 }
76 };
77
78 final OnFileTransmitted onFileTransmitted = new OnFileTransmitted() {
79
80 @Override
81 public void onFileTransmitted(JingleFile file) {
82 if (responder.equals(account.getFullJid())) {
83 sendSuccess();
84 if (acceptedAutomatically) {
85 message.markUnread();
86 JingleConnection.this.mXmppConnectionService.updateUi(message.getConversation(), true);
87 }
88 BitmapFactory.Options options = new BitmapFactory.Options();
89 options.inJustDecodeBounds = true;
90 BitmapFactory.decodeFile(file.getAbsolutePath(),options);
91 int imageHeight = options.outHeight;
92 int imageWidth = options.outWidth;
93 message.setBody(""+file.getSize()+","+imageWidth+","+imageHeight);
94 mXmppConnectionService.databaseBackend.createMessage(message);
95 mXmppConnectionService.markMessage(message, Message.STATUS_RECIEVED);
96 }
97 Log.d("xmppService","sucessfully transmitted file:"+file.getAbsolutePath());
98 }
99 };
100
101 private OnProxyActivated onProxyActivated = new OnProxyActivated() {
102
103 @Override
104 public void success() {
105 if (initiator.equals(account.getFullJid())) {
106 Log.d("xmppService","we were initiating. sending file");
107 transport.send(file,onFileTransmitted);
108 } else {
109 transport.receive(file,onFileTransmitted);
110 Log.d("xmppService","we were responding. receiving file");
111 }
112 }
113
114 @Override
115 public void failed() {
116 Log.d("xmppService","proxy activation failed");
117 }
118 };
119
120 public JingleConnection(JingleConnectionManager mJingleConnectionManager) {
121 this.mJingleConnectionManager = mJingleConnectionManager;
122 this.mXmppConnectionService = mJingleConnectionManager.getXmppConnectionService();
123 }
124
125 public String getSessionId() {
126 return this.sessionId;
127 }
128
129 public String getAccountJid() {
130 return this.account.getFullJid();
131 }
132
133 public String getCounterPart() {
134 return this.message.getCounterpart();
135 }
136
137 public void deliverPacket(JinglePacket packet) {
138 boolean returnResult = true;
139 if (packet.isAction("session-terminate")) {
140 Reason reason = packet.getReason();
141 if (reason!=null) {
142 if (reason.hasChild("cancel")) {
143 this.receiveCancel();
144 } else if (reason.hasChild("success")) {
145 this.receiveSuccess();
146 } else {
147 this.receiveCancel();
148 }
149 } else {
150 this.receiveCancel();
151 }
152 } else if (packet.isAction("session-accept")) {
153 returnResult = receiveAccept(packet);
154 } else if (packet.isAction("transport-info")) {
155 returnResult = receiveTransportInfo(packet);
156 } else if (packet.isAction("transport-replace")) {
157 if (packet.getJingleContent().hasIbbTransport()) {
158 returnResult = this.receiveFallbackToIbb(packet);
159 } else {
160 returnResult = false;
161 Log.d("xmppService","trying to fallback to something unknown"+packet.toString());
162 }
163 } else if (packet.isAction("transport-accept")) {
164 returnResult = this.receiveTransportAccept(packet);
165 } else {
166 Log.d("xmppService","packet arrived in connection. action was "+packet.getAction());
167 returnResult = false;
168 }
169 IqPacket response;
170 if (returnResult) {
171 response = packet.generateRespone(IqPacket.TYPE_RESULT);
172
173 } else {
174 response = packet.generateRespone(IqPacket.TYPE_ERROR);
175 }
176 account.getXmppConnection().sendIqPacket(response, null);
177 }
178
179 public void init(Message message) {
180 this.contentCreator = "initiator";
181 this.contentName = this.mJingleConnectionManager.nextRandomId();
182 this.message = message;
183 this.account = message.getConversation().getAccount();
184 this.initiator = this.account.getFullJid();
185 this.responder = this.message.getCounterpart();
186 this.sessionId = this.mJingleConnectionManager.nextRandomId();
187 if (this.candidates.size() > 0) {
188 this.sendInitRequest();
189 } else {
190 this.mJingleConnectionManager.getPrimaryCandidate(account, new OnPrimaryCandidateFound() {
191
192 @Override
193 public void onPrimaryCandidateFound(boolean success, final JingleCandidate candidate) {
194 if (success) {
195 final JingleSocks5Transport socksConnection = new JingleSocks5Transport(JingleConnection.this, candidate);
196 connections.put(candidate.getCid(), socksConnection);
197 socksConnection.connect(new OnTransportConnected() {
198
199 @Override
200 public void failed() {
201 Log.d("xmppService","connection to our own primary candidete failed");
202 sendInitRequest();
203 }
204
205 @Override
206 public void established() {
207 Log.d("xmppService","succesfully connected to our own primary candidate");
208 mergeCandidate(candidate);
209 sendInitRequest();
210 }
211 });
212 mergeCandidate(candidate);
213 } else {
214 Log.d("xmppService","no primary candidate of our own was found");
215 sendInitRequest();
216 }
217 }
218 });
219 }
220
221 }
222
223 public void init(Account account, JinglePacket packet) {
224 this.status = STATUS_INITIATED;
225 Conversation conversation = this.mXmppConnectionService.findOrCreateConversation(account, packet.getFrom().split("/")[0], false);
226 this.message = new Message(conversation, "", Message.ENCRYPTION_NONE);
227 this.message.setType(Message.TYPE_IMAGE);
228 this.message.setStatus(Message.STATUS_RECEIVED_OFFER);
229 this.message.setJingleConnection(this);
230 String[] fromParts = packet.getFrom().split("/");
231 this.message.setPresence(fromParts[1]);
232 this.account = account;
233 this.initiator = packet.getFrom();
234 this.responder = this.account.getFullJid();
235 this.sessionId = packet.getSessionId();
236 Content content = packet.getJingleContent();
237 this.contentCreator = content.getAttribute("creator");
238 this.contentName = content.getAttribute("name");
239 this.transportId = content.getTransportId();
240 this.mergeCandidates(JingleCandidate.parse(content.socks5transport().getChildren()));
241 this.fileOffer = packet.getJingleContent().getFileOffer();
242 if (fileOffer!=null) {
243 Element fileSize = fileOffer.findChild("size");
244 Element fileNameElement = fileOffer.findChild("name");
245 if (fileNameElement!=null) {
246 boolean supportedFile = false;
247 String[] filename = fileNameElement.getContent().toLowerCase(Locale.US).split("\\.");
248 if (Arrays.asList(this.extensions).contains(filename[filename.length - 1])) {
249 supportedFile = true;
250 } else if (Arrays.asList(this.cryptoExtensions).contains(filename[filename.length - 1])) {
251 if (filename.length == 3) {
252 if (Arrays.asList(this.extensions).contains(filename[filename.length -2])) {
253 supportedFile = true;
254 if (filename[filename.length - 1].equals("otr")) {
255 Log.d("xmppService","receiving otr file");
256 this.message.setEncryption(Message.ENCRYPTION_OTR);
257 } else {
258 this.message.setEncryption(Message.ENCRYPTION_PGP);
259 }
260 }
261 }
262 }
263 if (supportedFile) {
264 long size = Long.parseLong(fileSize.getContent());
265 message.setBody(""+size);
266 conversation.getMessages().add(message);
267 if (size<=this.mJingleConnectionManager.getAutoAcceptFileSize()) {
268 Log.d("xmppService","auto accepting file from "+packet.getFrom());
269 this.acceptedAutomatically = true;
270 this.sendAccept();
271 } else {
272 message.markUnread();
273 Log.d("xmppService","not auto accepting new file offer with size: "+size+" allowed size:"+this.mJingleConnectionManager.getAutoAcceptFileSize());
274 this.mXmppConnectionService.updateUi(conversation, true);
275 }
276 this.file = this.mXmppConnectionService.getFileBackend().getJingleFile(message,false);
277 if (message.getEncryption() == Message.ENCRYPTION_OTR) {
278 this.file.setKey(conversation.getSymmetricKey());
279 }
280 this.file.setExpectedSize(size);
281 } else {
282 this.sendCancel();
283 }
284 } else {
285 this.sendCancel();
286 }
287 } else {
288 this.sendCancel();
289 }
290 }
291
292 private void sendInitRequest() {
293 JinglePacket packet = this.bootstrapPacket("session-initiate");
294 Content content = new Content(this.contentCreator,this.contentName);
295 if (message.getType() == Message.TYPE_IMAGE) {
296 content.setTransportId(this.transportId);
297 this.file = this.mXmppConnectionService.getFileBackend().getJingleFile(message,false);
298 if (message.getEncryption() == Message.ENCRYPTION_OTR) {
299 Conversation conversation = this.message.getConversation();
300 this.mXmppConnectionService.renewSymmetricKey(conversation);
301 content.setFileOffer(this.file, true);
302 this.file.setKey(conversation.getSymmetricKey());
303 } else {
304 content.setFileOffer(this.file,false);
305 }
306 this.transportId = this.mJingleConnectionManager.nextRandomId();
307 content.setTransportId(this.transportId);
308 content.socks5transport().setChildren(getCandidatesAsElements());
309 packet.setContent(content);
310 this.sendJinglePacket(packet);
311 this.status = STATUS_INITIATED;
312 }
313 }
314
315 private List<Element> getCandidatesAsElements() {
316 List<Element> elements = new ArrayList<Element>();
317 for(JingleCandidate c : this.candidates) {
318 elements.add(c.toElement());
319 }
320 return elements;
321 }
322
323 private void sendAccept() {
324 status = STATUS_ACCEPTED;
325 mXmppConnectionService.markMessage(message, Message.STATUS_RECIEVING);
326 this.mJingleConnectionManager.getPrimaryCandidate(this.account, new OnPrimaryCandidateFound() {
327
328 @Override
329 public void onPrimaryCandidateFound(boolean success,final JingleCandidate candidate) {
330 final JinglePacket packet = bootstrapPacket("session-accept");
331 final Content content = new Content(contentCreator,contentName);
332 content.setFileOffer(fileOffer);
333 content.setTransportId(transportId);
334 if ((success)&&(!equalCandidateExists(candidate))) {
335 final JingleSocks5Transport socksConnection = new JingleSocks5Transport(JingleConnection.this, candidate);
336 connections.put(candidate.getCid(), socksConnection);
337 socksConnection.connect(new OnTransportConnected() {
338
339 @Override
340 public void failed() {
341 Log.d("xmppService","connection to our own primary candidate failed");
342 content.socks5transport().setChildren(getCandidatesAsElements());
343 packet.setContent(content);
344 sendJinglePacket(packet);
345 connectNextCandidate();
346 }
347
348 @Override
349 public void established() {
350 Log.d("xmppService","connected to primary candidate");
351 mergeCandidate(candidate);
352 content.socks5transport().setChildren(getCandidatesAsElements());
353 packet.setContent(content);
354 sendJinglePacket(packet);
355 connectNextCandidate();
356 }
357 });
358 } else {
359 Log.d("xmppService","did not find a primary candidate for ourself");
360 content.socks5transport().setChildren(getCandidatesAsElements());
361 packet.setContent(content);
362 sendJinglePacket(packet);
363 connectNextCandidate();
364 }
365 }
366 });
367
368 }
369
370 private JinglePacket bootstrapPacket(String action) {
371 JinglePacket packet = new JinglePacket();
372 packet.setAction(action);
373 packet.setFrom(account.getFullJid());
374 packet.setTo(this.message.getCounterpart());
375 packet.setSessionId(this.sessionId);
376 packet.setInitiator(this.initiator);
377 return packet;
378 }
379
380 private void sendJinglePacket(JinglePacket packet) {
381 //Log.d("xmppService",packet.toString());
382 account.getXmppConnection().sendIqPacket(packet,responseListener);
383 }
384
385 private boolean receiveAccept(JinglePacket packet) {
386 Content content = packet.getJingleContent();
387 mergeCandidates(JingleCandidate.parse(content.socks5transport().getChildren()));
388 this.status = STATUS_ACCEPTED;
389 mXmppConnectionService.markMessage(message, Message.STATUS_UNSEND);
390 this.connectNextCandidate();
391 return true;
392 }
393
394 private boolean receiveTransportInfo(JinglePacket packet) {
395 Content content = packet.getJingleContent();
396 if (content.hasSocks5Transport()) {
397 if (content.socks5transport().hasChild("activated")) {
398 if ((this.transport!=null)&&(this.transport instanceof JingleSocks5Transport)) {
399 onProxyActivated.success();
400 } else {
401 String cid = content.socks5transport().findChild("activated").getAttribute("cid");
402 Log.d("xmppService","received proxy activated ("+cid+")prior to choosing our own transport");
403 JingleSocks5Transport connection = this.connections.get(cid);
404 if (connection!=null) {
405 connection.setActivated(true);
406 } else {
407 Log.d("xmppService","activated connection not found");
408 this.sendCancel();
409 }
410 }
411 return true;
412 } else if (content.socks5transport().hasChild("proxy-error")) {
413 onProxyActivated.failed();
414 return true;
415 } else if (content.socks5transport().hasChild("candidate-error")) {
416 Log.d("xmppService","received candidate error");
417 this.receivedCandidate = true;
418 if ((status == STATUS_ACCEPTED)&&(this.sentCandidate)) {
419 this.connect();
420 }
421 return true;
422 } else if (content.socks5transport().hasChild("candidate-used")){
423 String cid = content.socks5transport().findChild("candidate-used").getAttribute("cid");
424 if (cid!=null) {
425 Log.d("xmppService","candidate used by counterpart:"+cid);
426 JingleCandidate candidate = getCandidate(cid);
427 candidate.flagAsUsedByCounterpart();
428 this.receivedCandidate = true;
429 if ((status == STATUS_ACCEPTED)&&(this.sentCandidate)) {
430 this.connect();
431 } else {
432 Log.d("xmppService","ignoring because file is already in transmission or we havent sent our candidate yet");
433 }
434 return true;
435 } else {
436 return false;
437 }
438 } else {
439 return false;
440 }
441 } else {
442 return true;
443 }
444 }
445
446 private void connect() {
447 final JingleSocks5Transport connection = chooseConnection();
448 this.transport = connection;
449 if (connection==null) {
450 Log.d("xmppService","could not find suitable candidate");
451 this.disconnect();
452 if (this.initiator.equals(account.getFullJid())) {
453 this.sendFallbackToIbb();
454 }
455 } else {
456 this.status = STATUS_TRANSMITTING;
457 if (connection.needsActivation()) {
458 if (connection.getCandidate().isOurs()) {
459 Log.d("xmppService","candidate "+connection.getCandidate().getCid()+" was our proxy. going to activate");
460 IqPacket activation = new IqPacket(IqPacket.TYPE_SET);
461 activation.setTo(connection.getCandidate().getJid());
462 activation.query("http://jabber.org/protocol/bytestreams").setAttribute("sid", this.getSessionId());
463 activation.query().addChild("activate").setContent(this.getCounterPart());
464 this.account.getXmppConnection().sendIqPacket(activation, new OnIqPacketReceived() {
465
466 @Override
467 public void onIqPacketReceived(Account account, IqPacket packet) {
468 if (packet.getType()==IqPacket.TYPE_ERROR) {
469 onProxyActivated.failed();
470 } else {
471 onProxyActivated.success();
472 sendProxyActivated(connection.getCandidate().getCid());
473 }
474 }
475 });
476 } else {
477 Log.d("xmppService","candidate "+connection.getCandidate().getCid()+" was a proxy. waiting for other party to activate");
478 }
479 } else {
480 if (initiator.equals(account.getFullJid())) {
481 Log.d("xmppService","we were initiating. sending file");
482 connection.send(file,onFileTransmitted);
483 } else {
484 Log.d("xmppService","we were responding. receiving file");
485 connection.receive(file,onFileTransmitted);
486 }
487 }
488 }
489 }
490
491 private JingleSocks5Transport chooseConnection() {
492 JingleSocks5Transport connection = null;
493 Iterator<Entry<String, JingleSocks5Transport>> it = this.connections.entrySet().iterator();
494 while (it.hasNext()) {
495 Entry<String, JingleSocks5Transport> pairs = it.next();
496 JingleSocks5Transport currentConnection = pairs.getValue();
497 //Log.d("xmppService","comparing candidate: "+currentConnection.getCandidate().toString());
498 if (currentConnection.isEstablished()&&(currentConnection.getCandidate().isUsedByCounterpart()||(!currentConnection.getCandidate().isOurs()))) {
499 //Log.d("xmppService","is usable");
500 if (connection==null) {
501 connection = currentConnection;
502 } else {
503 if (connection.getCandidate().getPriority()<currentConnection.getCandidate().getPriority()) {
504 connection = currentConnection;
505 } else if (connection.getCandidate().getPriority()==currentConnection.getCandidate().getPriority()) {
506 //Log.d("xmppService","found two candidates with same priority");
507 if (initiator.equals(account.getFullJid())) {
508 if (currentConnection.getCandidate().isOurs()) {
509 connection = currentConnection;
510 }
511 } else {
512 if (!currentConnection.getCandidate().isOurs()) {
513 connection = currentConnection;
514 }
515 }
516 }
517 }
518 }
519 it.remove();
520 }
521 return connection;
522 }
523
524 private void sendSuccess() {
525 JinglePacket packet = bootstrapPacket("session-terminate");
526 Reason reason = new Reason();
527 reason.addChild("success");
528 packet.setReason(reason);
529 this.sendJinglePacket(packet);
530 this.disconnect();
531 this.status = STATUS_FINISHED;
532 this.mXmppConnectionService.markMessage(this.message, Message.STATUS_RECIEVED);
533 this.mJingleConnectionManager.finishConnection(this);
534 }
535
536 private void sendFallbackToIbb() {
537 JinglePacket packet = this.bootstrapPacket("transport-replace");
538 Content content = new Content(this.contentCreator,this.contentName);
539 this.transportId = this.mJingleConnectionManager.nextRandomId();
540 content.setTransportId(this.transportId);
541 content.ibbTransport().setAttribute("block-size",""+this.ibbBlockSize);
542 packet.setContent(content);
543 this.sendJinglePacket(packet);
544 }
545
546 private boolean receiveFallbackToIbb(JinglePacket packet) {
547 String receivedBlockSize = packet.getJingleContent().ibbTransport().getAttribute("block-size");
548 if (receivedBlockSize!=null) {
549 int bs = Integer.parseInt(receivedBlockSize);
550 if (bs>this.ibbBlockSize) {
551 this.ibbBlockSize = bs;
552 }
553 }
554 this.transportId = packet.getJingleContent().getTransportId();
555 this.transport = new JingleInbandTransport(this.account,this.responder,this.transportId,this.ibbBlockSize);
556 this.transport.receive(file, onFileTransmitted);
557 JinglePacket answer = bootstrapPacket("transport-accept");
558 Content content = new Content("initiator", "a-file-offer");
559 content.setTransportId(this.transportId);
560 content.ibbTransport().setAttribute("block-size", ""+this.ibbBlockSize);
561 answer.setContent(content);
562 this.sendJinglePacket(answer);
563 return true;
564 }
565
566 private boolean receiveTransportAccept(JinglePacket packet) {
567 if (packet.getJingleContent().hasIbbTransport()) {
568 String receivedBlockSize = packet.getJingleContent().ibbTransport().getAttribute("block-size");
569 if (receivedBlockSize!=null) {
570 int bs = Integer.parseInt(receivedBlockSize);
571 if (bs>this.ibbBlockSize) {
572 this.ibbBlockSize = bs;
573 }
574 }
575 this.transport = new JingleInbandTransport(this.account,this.responder,this.transportId,this.ibbBlockSize);
576 this.transport.connect(new OnTransportConnected() {
577
578 @Override
579 public void failed() {
580 Log.d("xmppService","ibb open failed");
581 }
582
583 @Override
584 public void established() {
585 JingleConnection.this.transport.send(file, onFileTransmitted);
586 }
587 });
588 return true;
589 } else {
590 return false;
591 }
592 }
593
594 private void receiveSuccess() {
595 this.status = STATUS_FINISHED;
596 this.mXmppConnectionService.markMessage(this.message, Message.STATUS_SEND);
597 this.disconnect();
598 this.mJingleConnectionManager.finishConnection(this);
599 }
600
601 private void receiveCancel() {
602 this.disconnect();
603 this.status = STATUS_CANCELED;
604 this.mXmppConnectionService.markMessage(this.message, Message.STATUS_SEND_REJECTED);
605 this.mJingleConnectionManager.finishConnection(this);
606 }
607
608 private void sendCancel() {
609 JinglePacket packet = bootstrapPacket("session-terminate");
610 Reason reason = new Reason();
611 reason.addChild("cancel");
612 packet.setReason(reason);
613 this.sendJinglePacket(packet);
614 }
615
616 private void connectNextCandidate() {
617 for(JingleCandidate candidate : this.candidates) {
618 if ((!connections.containsKey(candidate.getCid())&&(!candidate.isOurs()))) {
619 this.connectWithCandidate(candidate);
620 return;
621 }
622 }
623 this.sendCandidateError();
624 }
625
626 private void connectWithCandidate(final JingleCandidate candidate) {
627 final JingleSocks5Transport socksConnection = new JingleSocks5Transport(this,candidate);
628 connections.put(candidate.getCid(), socksConnection);
629 socksConnection.connect(new OnTransportConnected() {
630
631 @Override
632 public void failed() {
633 Log.d("xmppService", "connection failed with "+candidate.getHost()+":"+candidate.getPort());
634 connectNextCandidate();
635 }
636
637 @Override
638 public void established() {
639 Log.d("xmppService", "established connection with "+candidate.getHost()+":"+candidate.getPort());
640 sendCandidateUsed(candidate.getCid());
641 }
642 });
643 }
644
645 private void disconnect() {
646 Iterator<Entry<String, JingleSocks5Transport>> it = this.connections.entrySet().iterator();
647 while (it.hasNext()) {
648 Entry<String, JingleSocks5Transport> pairs = it.next();
649 pairs.getValue().disconnect();
650 it.remove();
651 }
652 }
653
654 private void sendProxyActivated(String cid) {
655 JinglePacket packet = bootstrapPacket("transport-info");
656 Content content = new Content(this.contentCreator,this.contentName);
657 content.setTransportId(this.transportId);
658 content.socks5transport().addChild("activated").setAttribute("cid", cid);
659 packet.setContent(content);
660 this.sendJinglePacket(packet);
661 }
662
663 private void sendCandidateUsed(final String cid) {
664 JinglePacket packet = bootstrapPacket("transport-info");
665 Content content = new Content(this.contentCreator,this.contentName);
666 content.setTransportId(this.transportId);
667 content.socks5transport().addChild("candidate-used").setAttribute("cid", cid);
668 packet.setContent(content);
669 this.sentCandidate = true;
670 if ((receivedCandidate)&&(status == STATUS_ACCEPTED)) {
671 connect();
672 }
673 this.sendJinglePacket(packet);
674 }
675
676 private void sendCandidateError() {
677 JinglePacket packet = bootstrapPacket("transport-info");
678 Content content = new Content(this.contentCreator,this.contentName);
679 content.setTransportId(this.transportId);
680 content.socks5transport().addChild("candidate-error");
681 packet.setContent(content);
682 this.sentCandidate = true;
683 if ((receivedCandidate)&&(status == STATUS_ACCEPTED)) {
684 connect();
685 }
686 this.sendJinglePacket(packet);
687 }
688
689 public String getInitiator() {
690 return this.initiator;
691 }
692
693 public String getResponder() {
694 return this.responder;
695 }
696
697 public int getStatus() {
698 return this.status;
699 }
700
701 private boolean equalCandidateExists(JingleCandidate candidate) {
702 for(JingleCandidate c : this.candidates) {
703 if (c.equalValues(candidate)) {
704 return true;
705 }
706 }
707 return false;
708 }
709
710 private void mergeCandidate(JingleCandidate candidate) {
711 for(JingleCandidate c : this.candidates) {
712 if (c.equals(candidate)) {
713 return;
714 }
715 }
716 this.candidates.add(candidate);
717 }
718
719 private void mergeCandidates(List<JingleCandidate> candidates) {
720 for(JingleCandidate c : candidates) {
721 mergeCandidate(c);
722 }
723 }
724
725 private JingleCandidate getCandidate(String cid) {
726 for(JingleCandidate c : this.candidates) {
727 if (c.getCid().equals(cid)) {
728 return c;
729 }
730 }
731 return null;
732 }
733
734 interface OnProxyActivated {
735 public void success();
736 public void failed();
737 }
738
739 public boolean hasTransportId(String sid) {
740 return sid.equals(this.transportId);
741 }
742
743 public JingleTransport getTransport() {
744 return this.transport;
745 }
746
747 public void accept() {
748 if (status==STATUS_INITIATED) {
749 new Thread(new Runnable() {
750
751 @Override
752 public void run() {
753 sendAccept();
754 }
755 }).start();
756 } else {
757 Log.d("xmppService","status ("+status+") was not ok");
758 }
759 }
760}