1package eu.siacs.conversations.xmpp.jingle;
2
3import android.util.Base64;
4import android.util.Log;
5
6import com.google.common.base.Objects;
7import com.google.common.base.Optional;
8import com.google.common.base.Preconditions;
9import com.google.common.cache.Cache;
10import com.google.common.cache.CacheBuilder;
11import com.google.common.collect.Collections2;
12import com.google.common.collect.ImmutableSet;
13
14import java.lang.ref.WeakReference;
15import java.security.SecureRandom;
16import java.util.Collection;
17import java.util.Collections;
18import java.util.HashMap;
19import java.util.List;
20import java.util.Map;
21import java.util.Set;
22import java.util.concurrent.ConcurrentHashMap;
23import java.util.concurrent.Executors;
24import java.util.concurrent.ScheduledExecutorService;
25import java.util.concurrent.ScheduledFuture;
26import java.util.concurrent.TimeUnit;
27
28import eu.siacs.conversations.Config;
29import eu.siacs.conversations.entities.Account;
30import eu.siacs.conversations.entities.Contact;
31import eu.siacs.conversations.entities.Conversation;
32import eu.siacs.conversations.entities.Conversational;
33import eu.siacs.conversations.entities.Message;
34import eu.siacs.conversations.entities.RtpSessionStatus;
35import eu.siacs.conversations.entities.Transferable;
36import eu.siacs.conversations.services.AbstractConnectionManager;
37import eu.siacs.conversations.services.XmppConnectionService;
38import eu.siacs.conversations.xml.Element;
39import eu.siacs.conversations.xml.Namespace;
40import eu.siacs.conversations.xmpp.OnIqPacketReceived;
41import eu.siacs.conversations.xmpp.jingle.stanzas.Content;
42import eu.siacs.conversations.xmpp.jingle.stanzas.FileTransferDescription;
43import eu.siacs.conversations.xmpp.jingle.stanzas.GenericDescription;
44import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
45import eu.siacs.conversations.xmpp.jingle.stanzas.Propose;
46import eu.siacs.conversations.xmpp.jingle.stanzas.Reason;
47import eu.siacs.conversations.xmpp.jingle.stanzas.RtpDescription;
48import eu.siacs.conversations.xmpp.stanzas.IqPacket;
49import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
50import rocks.xmpp.addr.Jid;
51
52public class JingleConnectionManager extends AbstractConnectionManager {
53 static final ScheduledExecutorService SCHEDULED_EXECUTOR_SERVICE = Executors.newSingleThreadScheduledExecutor();
54 final ToneManager toneManager = new ToneManager();
55 private final HashMap<RtpSessionProposal, DeviceDiscoveryState> rtpSessionProposals = new HashMap<>();
56 private final ConcurrentHashMap<AbstractJingleConnection.Id, AbstractJingleConnection> connections = new ConcurrentHashMap<>();
57
58 private final Cache<PersistableSessionId, JingleRtpConnection.State> endedSessions = CacheBuilder.newBuilder()
59 .expireAfterWrite(30, TimeUnit.MINUTES)
60 .build();
61
62 private HashMap<Jid, JingleCandidate> primaryCandidates = new HashMap<>();
63
64 public JingleConnectionManager(XmppConnectionService service) {
65 super(service);
66 }
67
68 static String nextRandomId() {
69 final byte[] id = new byte[16];
70 new SecureRandom().nextBytes(id);
71 return Base64.encodeToString(id, Base64.NO_WRAP | Base64.NO_PADDING);
72 }
73
74 public void deliverPacket(final Account account, final JinglePacket packet) {
75 final String sessionId = packet.getSessionId();
76 if (sessionId == null) {
77 respondWithJingleError(account, packet, "unknown-session", "item-not-found", "cancel");
78 return;
79 }
80 final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(account, packet);
81 final AbstractJingleConnection existingJingleConnection = connections.get(id);
82 if (existingJingleConnection != null) {
83 existingJingleConnection.deliverPacket(packet);
84 } else if (packet.getAction() == JinglePacket.Action.SESSION_INITIATE) {
85 final Jid from = packet.getFrom();
86 final Content content = packet.getJingleContent();
87 final String descriptionNamespace = content == null ? null : content.getDescriptionNamespace();
88 final AbstractJingleConnection connection;
89 if (FileTransferDescription.NAMESPACES.contains(descriptionNamespace)) {
90 connection = new JingleFileTransferConnection(this, id, from);
91 } else if (Namespace.JINGLE_APPS_RTP.equals(descriptionNamespace) && !usesTor(account)) {
92 final boolean sessionEnded = this.endedSessions.asMap().containsKey(PersistableSessionId.of(id));
93 final boolean stranger = isWithStrangerAndStrangerNotificationsAreOff(account, id.with);
94 if (isBusy() || sessionEnded || stranger) {
95 Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": rejected session with " + id.with + " because busy. sessionEnded=" + sessionEnded + ", stranger=" + stranger);
96 mXmppConnectionService.sendIqPacket(account, packet.generateResponse(IqPacket.TYPE.RESULT), null);
97 final JinglePacket sessionTermination = new JinglePacket(JinglePacket.Action.SESSION_TERMINATE, id.sessionId);
98 sessionTermination.setTo(id.with);
99 sessionTermination.setReason(Reason.BUSY, null);
100 mXmppConnectionService.sendIqPacket(account, sessionTermination, null);
101 return;
102 }
103 connection = new JingleRtpConnection(this, id, from);
104 } else {
105 respondWithJingleError(account, packet, "unsupported-info", "feature-not-implemented", "cancel");
106 return;
107 }
108 connections.put(id, connection);
109 mXmppConnectionService.updateConversationUi();
110 connection.deliverPacket(packet);
111 } else {
112 Log.d(Config.LOGTAG, "unable to route jingle packet: " + packet);
113 respondWithJingleError(account, packet, "unknown-session", "item-not-found", "cancel");
114 }
115 }
116
117 private boolean usesTor(final Account account) {
118 return account.isOnion() || mXmppConnectionService.useTorToConnect();
119 }
120
121 public boolean isBusy() {
122 for (AbstractJingleConnection connection : this.connections.values()) {
123 if (connection instanceof JingleRtpConnection) {
124 if (((JingleRtpConnection) connection).isTerminated()) {
125 continue;
126 }
127 return true;
128 }
129 }
130 synchronized (this.rtpSessionProposals) {
131 return this.rtpSessionProposals.containsValue(DeviceDiscoveryState.DISCOVERED) || this.rtpSessionProposals.containsValue(DeviceDiscoveryState.SEARCHING);
132 }
133 }
134
135 private boolean isWithStrangerAndStrangerNotificationsAreOff(final Account account, Jid with) {
136 final boolean notifyForStrangers = mXmppConnectionService.getNotificationService().notificationsFromStrangers();
137 if (notifyForStrangers) {
138 return false;
139 }
140 final Contact contact = account.getRoster().getContact(with);
141 return !contact.showInContactList();
142 }
143
144 ScheduledFuture<?> schedule(final Runnable runnable, final long delay, final TimeUnit timeUnit) {
145 return SCHEDULED_EXECUTOR_SERVICE.schedule(runnable, delay, timeUnit);
146 }
147
148 void respondWithJingleError(final Account account, final IqPacket original, String jingleCondition, String condition, String conditionType) {
149 final IqPacket response = original.generateResponse(IqPacket.TYPE.ERROR);
150 final Element error = response.addChild("error");
151 error.setAttribute("type", conditionType);
152 error.addChild(condition, "urn:ietf:params:xml:ns:xmpp-stanzas");
153 error.addChild(jingleCondition, "urn:xmpp:jingle:errors:1");
154 account.getXmppConnection().sendIqPacket(response, null);
155 }
156
157 public void deliverMessage(final Account account, final Jid to, final Jid from, final Element message, String remoteMsgId, String serverMsgId, long timestamp) {
158 Preconditions.checkArgument(Namespace.JINGLE_MESSAGE.equals(message.getNamespace()));
159 final String sessionId = message.getAttribute("id");
160 if (sessionId == null) {
161 return;
162 }
163 if ("accept".equals(message.getName())) {
164 for (AbstractJingleConnection connection : connections.values()) {
165 if (connection instanceof JingleRtpConnection) {
166 final JingleRtpConnection rtpConnection = (JingleRtpConnection) connection;
167 final AbstractJingleConnection.Id id = connection.getId();
168 if (id.account == account && id.sessionId.equals(sessionId)) {
169 rtpConnection.deliveryMessage(from, message, serverMsgId, timestamp);
170 return;
171 }
172 }
173 }
174 return;
175 }
176 final boolean fromSelf = from.asBareJid().equals(account.getJid().asBareJid());
177 final boolean addressedDirectly = to != null && to.equals(account.getJid());
178 final AbstractJingleConnection.Id id;
179 if (fromSelf) {
180 if (to != null && to.isFullJid()) {
181 id = AbstractJingleConnection.Id.of(account, to, sessionId);
182 } else {
183 return;
184 }
185 } else {
186 id = AbstractJingleConnection.Id.of(account, from, sessionId);
187 }
188 final AbstractJingleConnection existingJingleConnection = connections.get(id);
189 if (existingJingleConnection != null) {
190 if (existingJingleConnection instanceof JingleRtpConnection) {
191 ((JingleRtpConnection) existingJingleConnection).deliveryMessage(from, message, serverMsgId, timestamp);
192 } else {
193 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": " + existingJingleConnection.getClass().getName() + " does not support jingle messages");
194 }
195 return;
196 }
197
198 if (fromSelf) {
199 if ("proceed".equals(message.getName())) {
200 final Conversation c = mXmppConnectionService.findOrCreateConversation(account, id.with, false, false);
201 final Message previousBusy = c.findRtpSession(sessionId, Message.STATUS_RECEIVED);
202 if (previousBusy != null) {
203 previousBusy.setBody(new RtpSessionStatus(true, 0).toString());
204 if (serverMsgId != null) {
205 previousBusy.setServerMsgId(serverMsgId);
206 }
207 previousBusy.setTime(timestamp);
208 mXmppConnectionService.updateMessage(previousBusy, true);
209 Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": updated previous busy because call got picked up by another device");
210 return;
211 }
212 }
213 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ignore jingle message from self");
214 return;
215 }
216
217 if ("propose".equals(message.getName())) {
218 final Propose propose = Propose.upgrade(message);
219 final List<GenericDescription> descriptions = propose.getDescriptions();
220 final Collection<RtpDescription> rtpDescriptions = Collections2.transform(
221 Collections2.filter(descriptions, d -> d instanceof RtpDescription),
222 input -> (RtpDescription) input
223 );
224 if (rtpDescriptions.size() > 0 && rtpDescriptions.size() == descriptions.size() && !usesTor(account)) {
225 final Collection<Media> media = Collections2.transform(rtpDescriptions, RtpDescription::getMedia);
226 if (media.contains(Media.UNKNOWN)) {
227 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": encountered unknown media in session proposal. " + propose);
228 return;
229 }
230 final boolean stranger = isWithStrangerAndStrangerNotificationsAreOff(account, id.with);
231 if (isBusy() || stranger) {
232 writeLogMissedIncoming(account, id.with.asBareJid(), id.sessionId, serverMsgId, timestamp);
233 if (stranger) {
234 Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": ignoring call proposal from stranger " + id.with);
235 return;
236 }
237 final int activeDevices = account.activeDevicesWithRtpCapability();
238 Log.d(Config.LOGTAG, "active devices with rtp capability: " + activeDevices);
239 if (activeDevices == 0) {
240 final MessagePacket reject = mXmppConnectionService.getMessageGenerator().sessionReject(from, sessionId);
241 mXmppConnectionService.sendMessagePacket(account, reject);
242 } else {
243 Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": ignoring proposal because busy on this device but there are other devices");
244 }
245 } else {
246 final JingleRtpConnection rtpConnection = new JingleRtpConnection(this, id, from);
247 this.connections.put(id, rtpConnection);
248 rtpConnection.setProposedMedia(ImmutableSet.copyOf(media));
249 rtpConnection.deliveryMessage(from, message, serverMsgId, timestamp);
250 }
251 } else {
252 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": unable to react to proposed session with " + rtpDescriptions.size() + " rtp descriptions of " + descriptions.size() + " total descriptions");
253 }
254 } else if (addressedDirectly && "proceed".equals(message.getName())) {
255 synchronized (rtpSessionProposals) {
256 final RtpSessionProposal proposal = getRtpSessionProposal(account, from.asBareJid(), sessionId);
257 if (proposal != null) {
258 rtpSessionProposals.remove(proposal);
259 final JingleRtpConnection rtpConnection = new JingleRtpConnection(this, id, account.getJid());
260 rtpConnection.setProposedMedia(proposal.media);
261 this.connections.put(id, rtpConnection);
262 rtpConnection.transitionOrThrow(AbstractJingleConnection.State.PROPOSED);
263 rtpConnection.deliveryMessage(from, message, serverMsgId, timestamp);
264 } else {
265 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": no rtp session proposal found for " + from + " to deliver proceed");
266 if (remoteMsgId == null) {
267 return;
268 }
269 final MessagePacket errorMessage = new MessagePacket();
270 errorMessage.setTo(from);
271 errorMessage.setId(remoteMsgId);
272 errorMessage.setType(MessagePacket.TYPE_ERROR);
273 final Element error = errorMessage.addChild("error");
274 error.setAttribute("code", "404");
275 error.setAttribute("type", "cancel");
276 error.addChild("item-not-found", "urn:ietf:params:xml:ns:xmpp-stanzas");
277 mXmppConnectionService.sendMessagePacket(account, errorMessage);
278 }
279 }
280 } else if (addressedDirectly && "reject".equals(message.getName())) {
281 final RtpSessionProposal proposal = new RtpSessionProposal(account, from.asBareJid(), sessionId);
282 synchronized (rtpSessionProposals) {
283 if (rtpSessionProposals.remove(proposal) != null) {
284 writeLogMissedOutgoing(account, proposal.with, proposal.sessionId, serverMsgId, timestamp);
285 toneManager.transition(RtpEndUserState.DECLINED_OR_BUSY);
286 mXmppConnectionService.notifyJingleRtpConnectionUpdate(account, proposal.with, proposal.sessionId, RtpEndUserState.DECLINED_OR_BUSY);
287 } else {
288 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": no rtp session proposal found for " + from + " to deliver reject");
289 }
290 }
291 } else {
292 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": retrieved out of order jingle message");
293 }
294
295 }
296
297 private RtpSessionProposal getRtpSessionProposal(final Account account, Jid from, String sessionId) {
298 for (RtpSessionProposal rtpSessionProposal : rtpSessionProposals.keySet()) {
299 if (rtpSessionProposal.sessionId.equals(sessionId) && rtpSessionProposal.with.equals(from) && rtpSessionProposal.account.getJid().equals(account.getJid())) {
300 return rtpSessionProposal;
301 }
302 }
303 return null;
304 }
305
306 private void writeLogMissedOutgoing(final Account account, Jid with, final String sessionId, String serverMsgId, long timestamp) {
307 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(
308 account,
309 with.asBareJid(),
310 false,
311 false
312 );
313 final Message message = new Message(
314 conversation,
315 Message.STATUS_SEND,
316 Message.TYPE_RTP_SESSION,
317 sessionId
318 );
319 message.setBody(new RtpSessionStatus(false, 0).toString());
320 message.setServerMsgId(serverMsgId);
321 message.setTime(timestamp);
322 writeMessage(message);
323 }
324
325 private void writeLogMissedIncoming(final Account account, Jid with, final String sessionId, String serverMsgId, long timestamp) {
326 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(
327 account,
328 with.asBareJid(),
329 false,
330 false
331 );
332 final Message message = new Message(
333 conversation,
334 Message.STATUS_RECEIVED,
335 Message.TYPE_RTP_SESSION,
336 sessionId
337 );
338 message.setBody(new RtpSessionStatus(false, 0).toString());
339 message.setServerMsgId(serverMsgId);
340 message.setTime(timestamp);
341 writeMessage(message);
342 }
343
344 private void writeMessage(final Message message) {
345 final Conversational conversational = message.getConversation();
346 if (conversational instanceof Conversation) {
347 ((Conversation) conversational).add(message);
348 mXmppConnectionService.databaseBackend.createMessage(message);
349 mXmppConnectionService.updateConversationUi();
350 } else {
351 throw new IllegalStateException("Somehow the conversation in a message was a stub");
352 }
353 }
354
355 public void startJingleFileTransfer(final Message message) {
356 Preconditions.checkArgument(message.isFileOrImage(), "Message is not of type file or image");
357 final Transferable old = message.getTransferable();
358 if (old != null) {
359 old.cancel();
360 }
361 final Account account = message.getConversation().getAccount();
362 final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(message);
363 final JingleFileTransferConnection connection = new JingleFileTransferConnection(this, id, account.getJid());
364 mXmppConnectionService.markMessage(message, Message.STATUS_WAITING);
365 this.connections.put(id, connection);
366 connection.init(message);
367 }
368
369 public Optional<OngoingRtpSession> getOngoingRtpConnection(final Contact contact) {
370 for (final Map.Entry<AbstractJingleConnection.Id, AbstractJingleConnection> entry : this.connections.entrySet()) {
371 if (entry.getValue() instanceof JingleRtpConnection) {
372 final AbstractJingleConnection.Id id = entry.getKey();
373 if (id.account == contact.getAccount() && id.with.asBareJid().equals(contact.getJid().asBareJid())) {
374 return Optional.of(id);
375 }
376 }
377 }
378 synchronized (this.rtpSessionProposals) {
379 for (Map.Entry<RtpSessionProposal, DeviceDiscoveryState> entry : this.rtpSessionProposals.entrySet()) {
380 RtpSessionProposal proposal = entry.getKey();
381 if (proposal.account == contact.getAccount() && contact.getJid().asBareJid().equals(proposal.with)) {
382 final DeviceDiscoveryState preexistingState = entry.getValue();
383 if (preexistingState != null && preexistingState != DeviceDiscoveryState.FAILED) {
384 return Optional.of(proposal);
385 }
386 }
387 }
388 }
389 return Optional.absent();
390 }
391
392 void finishConnection(final AbstractJingleConnection connection) {
393 this.connections.remove(connection.getId());
394 }
395
396 void getPrimaryCandidate(final Account account, final boolean initiator, final OnPrimaryCandidateFound listener) {
397 if (Config.DISABLE_PROXY_LOOKUP) {
398 listener.onPrimaryCandidateFound(false, null);
399 return;
400 }
401 if (!this.primaryCandidates.containsKey(account.getJid().asBareJid())) {
402 final Jid proxy = account.getXmppConnection().findDiscoItemByFeature(Namespace.BYTE_STREAMS);
403 if (proxy != null) {
404 IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
405 iq.setTo(proxy);
406 iq.query(Namespace.BYTE_STREAMS);
407 account.getXmppConnection().sendIqPacket(iq, new OnIqPacketReceived() {
408
409 @Override
410 public void onIqPacketReceived(Account account, IqPacket packet) {
411 final Element streamhost = packet.query().findChild("streamhost", Namespace.BYTE_STREAMS);
412 final String host = streamhost == null ? null : streamhost.getAttribute("host");
413 final String port = streamhost == null ? null : streamhost.getAttribute("port");
414 if (host != null && port != null) {
415 try {
416 JingleCandidate candidate = new JingleCandidate(nextRandomId(), true);
417 candidate.setHost(host);
418 candidate.setPort(Integer.parseInt(port));
419 candidate.setType(JingleCandidate.TYPE_PROXY);
420 candidate.setJid(proxy);
421 candidate.setPriority(655360 + (initiator ? 30 : 0));
422 primaryCandidates.put(account.getJid().asBareJid(), candidate);
423 listener.onPrimaryCandidateFound(true, candidate);
424 } catch (final NumberFormatException e) {
425 listener.onPrimaryCandidateFound(false, null);
426 }
427 } else {
428 listener.onPrimaryCandidateFound(false, null);
429 }
430 }
431 });
432 } else {
433 listener.onPrimaryCandidateFound(false, null);
434 }
435
436 } else {
437 listener.onPrimaryCandidateFound(true,
438 this.primaryCandidates.get(account.getJid().asBareJid()));
439 }
440 }
441
442 public void retractSessionProposal(final Account account, final Jid with) {
443 synchronized (this.rtpSessionProposals) {
444 RtpSessionProposal matchingProposal = null;
445 for (RtpSessionProposal proposal : this.rtpSessionProposals.keySet()) {
446 if (proposal.account == account && with.asBareJid().equals(proposal.with)) {
447 matchingProposal = proposal;
448 break;
449 }
450 }
451 if (matchingProposal != null) {
452 toneManager.transition(RtpEndUserState.ENDED);
453 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": retracting rtp session proposal with " + with);
454 this.rtpSessionProposals.remove(matchingProposal);
455 final MessagePacket messagePacket = mXmppConnectionService.getMessageGenerator().sessionRetract(matchingProposal);
456 writeLogMissedOutgoing(account, matchingProposal.with, matchingProposal.sessionId, null, System.currentTimeMillis());
457 mXmppConnectionService.sendMessagePacket(account, messagePacket);
458 }
459 }
460 }
461
462 public void proposeJingleRtpSession(final Account account, final Jid with, final Set<Media> media) {
463 synchronized (this.rtpSessionProposals) {
464 for (Map.Entry<RtpSessionProposal, DeviceDiscoveryState> entry : this.rtpSessionProposals.entrySet()) {
465 RtpSessionProposal proposal = entry.getKey();
466 if (proposal.account == account && with.asBareJid().equals(proposal.with)) {
467 final DeviceDiscoveryState preexistingState = entry.getValue();
468 if (preexistingState != null && preexistingState != DeviceDiscoveryState.FAILED) {
469 final RtpEndUserState endUserState = preexistingState.toEndUserState();
470 toneManager.transition(endUserState);
471 mXmppConnectionService.notifyJingleRtpConnectionUpdate(
472 account,
473 with,
474 proposal.sessionId,
475 endUserState
476 );
477 return;
478 }
479 }
480 }
481 if (isBusy()) {
482 throw new IllegalStateException("There is already a running RTP session. This should have been caught by the UI");
483 }
484 final RtpSessionProposal proposal = RtpSessionProposal.of(account, with.asBareJid(), media);
485 this.rtpSessionProposals.put(proposal, DeviceDiscoveryState.SEARCHING);
486 mXmppConnectionService.notifyJingleRtpConnectionUpdate(
487 account,
488 proposal.with,
489 proposal.sessionId,
490 RtpEndUserState.FINDING_DEVICE
491 );
492 final MessagePacket messagePacket = mXmppConnectionService.getMessageGenerator().sessionProposal(proposal);
493 Log.d(Config.LOGTAG, messagePacket.toString());
494 mXmppConnectionService.sendMessagePacket(account, messagePacket);
495 }
496 }
497
498 public void deliverIbbPacket(Account account, IqPacket packet) {
499 final String sid;
500 final Element payload;
501 if (packet.hasChild("open", Namespace.IBB)) {
502 payload = packet.findChild("open", Namespace.IBB);
503 sid = payload.getAttribute("sid");
504 } else if (packet.hasChild("data", Namespace.IBB)) {
505 payload = packet.findChild("data", Namespace.IBB);
506 sid = payload.getAttribute("sid");
507 } else if (packet.hasChild("close", Namespace.IBB)) {
508 payload = packet.findChild("close", Namespace.IBB);
509 sid = payload.getAttribute("sid");
510 } else {
511 payload = null;
512 sid = null;
513 }
514 if (sid != null) {
515 for (final AbstractJingleConnection connection : this.connections.values()) {
516 if (connection instanceof JingleFileTransferConnection) {
517 final JingleFileTransferConnection fileTransfer = (JingleFileTransferConnection) connection;
518 final JingleTransport transport = fileTransfer.getTransport();
519 if (transport instanceof JingleInBandTransport) {
520 final JingleInBandTransport inBandTransport = (JingleInBandTransport) transport;
521 if (inBandTransport.matches(account, sid)) {
522 inBandTransport.deliverPayload(packet, payload);
523 }
524 return;
525 }
526 }
527 }
528 }
529 Log.d(Config.LOGTAG, "unable to deliver ibb packet: " + packet.toString());
530 account.getXmppConnection().sendIqPacket(packet.generateResponse(IqPacket.TYPE.ERROR), null);
531 }
532
533 public void notifyRebound() {
534 for (final AbstractJingleConnection connection : this.connections.values()) {
535 connection.notifyRebound();
536 }
537 }
538
539 public WeakReference<JingleRtpConnection> findJingleRtpConnection(Account account, Jid with, String sessionId) {
540 final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(account, Jid.ofEscaped(with), sessionId);
541 final AbstractJingleConnection connection = connections.get(id);
542 if (connection instanceof JingleRtpConnection) {
543 return new WeakReference<>((JingleRtpConnection) connection);
544 }
545 return null;
546 }
547
548 public void updateProposedSessionDiscovered(Account account, Jid from, String sessionId, final DeviceDiscoveryState target) {
549 synchronized (this.rtpSessionProposals) {
550 final RtpSessionProposal sessionProposal = getRtpSessionProposal(account, from.asBareJid(), sessionId);
551 final DeviceDiscoveryState currentState = sessionProposal == null ? null : rtpSessionProposals.get(sessionProposal);
552 if (currentState == null) {
553 Log.d(Config.LOGTAG, "unable to find session proposal for session id " + sessionId);
554 return;
555 }
556 if (currentState == DeviceDiscoveryState.DISCOVERED) {
557 Log.d(Config.LOGTAG, "session proposal already at discovered. not going to fall back");
558 return;
559 }
560 this.rtpSessionProposals.put(sessionProposal, target);
561 final RtpEndUserState endUserState = target.toEndUserState();
562 toneManager.transition(endUserState);
563 mXmppConnectionService.notifyJingleRtpConnectionUpdate(account, sessionProposal.with, sessionProposal.sessionId, endUserState);
564 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": flagging session " + sessionId + " as " + target);
565 }
566 }
567
568 public void rejectRtpSession(final String sessionId) {
569 for (final AbstractJingleConnection connection : this.connections.values()) {
570 if (connection.getId().sessionId.equals(sessionId)) {
571 if (connection instanceof JingleRtpConnection) {
572 ((JingleRtpConnection) connection).rejectCall();
573 }
574 }
575 }
576 }
577
578 public void endRtpSession(final String sessionId) {
579 for (final AbstractJingleConnection connection : this.connections.values()) {
580 if (connection.getId().sessionId.equals(sessionId)) {
581 if (connection instanceof JingleRtpConnection) {
582 ((JingleRtpConnection) connection).endCall();
583 }
584 }
585 }
586 }
587
588 public void failProceed(Account account, final Jid with, String sessionId) {
589 final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(account, with, sessionId);
590 final AbstractJingleConnection existingJingleConnection = connections.get(id);
591 if (existingJingleConnection instanceof JingleRtpConnection) {
592 ((JingleRtpConnection) existingJingleConnection).deliverFailedProceed();
593 }
594 }
595
596 void ensureConnectionIsRegistered(final AbstractJingleConnection connection) {
597 if (connections.containsValue(connection)) {
598 return;
599 }
600 final IllegalStateException e = new IllegalStateException("JingleConnection has not been registered with connection manager");
601 Log.e(Config.LOGTAG, "ensureConnectionIsRegistered() failed. Going to throw", e);
602 throw e;
603 }
604
605 public void endSession(AbstractJingleConnection.Id id, final AbstractJingleConnection.State state) {
606 this.endedSessions.put(PersistableSessionId.of(id), state);
607 }
608
609 private static class PersistableSessionId {
610 private final Jid with;
611 private final String sessionId;
612
613 private PersistableSessionId(Jid with, String sessionId) {
614 this.with = with;
615 this.sessionId = sessionId;
616 }
617
618 public static PersistableSessionId of(AbstractJingleConnection.Id id) {
619 return new PersistableSessionId(id.with, id.sessionId);
620 }
621
622 @Override
623 public boolean equals(Object o) {
624 if (this == o) return true;
625 if (o == null || getClass() != o.getClass()) return false;
626 PersistableSessionId that = (PersistableSessionId) o;
627 return Objects.equal(with, that.with) &&
628 Objects.equal(sessionId, that.sessionId);
629 }
630
631 @Override
632 public int hashCode() {
633 return Objects.hashCode(with, sessionId);
634 }
635 }
636
637 public enum DeviceDiscoveryState {
638 SEARCHING, DISCOVERED, FAILED;
639
640 public RtpEndUserState toEndUserState() {
641 switch (this) {
642 case SEARCHING:
643 return RtpEndUserState.FINDING_DEVICE;
644 case DISCOVERED:
645 return RtpEndUserState.RINGING;
646 default:
647 return RtpEndUserState.CONNECTIVITY_ERROR;
648 }
649 }
650 }
651
652 public static class RtpSessionProposal implements OngoingRtpSession {
653 public final Jid with;
654 public final String sessionId;
655 public final Set<Media> media;
656 private final Account account;
657
658 private RtpSessionProposal(Account account, Jid with, String sessionId) {
659 this(account, with, sessionId, Collections.emptySet());
660 }
661
662 private RtpSessionProposal(Account account, Jid with, String sessionId, Set<Media> media) {
663 this.account = account;
664 this.with = with;
665 this.sessionId = sessionId;
666 this.media = media;
667 }
668
669 public static RtpSessionProposal of(Account account, Jid with, Set<Media> media) {
670 return new RtpSessionProposal(account, with, nextRandomId(), media);
671 }
672
673 @Override
674 public boolean equals(Object o) {
675 if (this == o) return true;
676 if (o == null || getClass() != o.getClass()) return false;
677 RtpSessionProposal proposal = (RtpSessionProposal) o;
678 return Objects.equal(account.getJid(), proposal.account.getJid()) &&
679 Objects.equal(with, proposal.with) &&
680 Objects.equal(sessionId, proposal.sessionId);
681 }
682
683 @Override
684 public int hashCode() {
685 return Objects.hashCode(account.getJid(), with, sessionId);
686 }
687
688 @Override
689 public Account getAccount() {
690 return account;
691 }
692
693 @Override
694 public Jid getWith() {
695 return with;
696 }
697
698 @Override
699 public String getSessionId() {
700 return sessionId;
701 }
702 }
703}