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 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 AbstractJingleConnection.Id id;
178 if (fromSelf) {
179 if (to != null && to.isFullJid()) {
180 id = AbstractJingleConnection.Id.of(account, to, sessionId);
181 } else {
182 return;
183 }
184 } else {
185 id = AbstractJingleConnection.Id.of(account, from, sessionId);
186 }
187 final AbstractJingleConnection existingJingleConnection = connections.get(id);
188 if (existingJingleConnection != null) {
189 if (existingJingleConnection instanceof JingleRtpConnection) {
190 ((JingleRtpConnection) existingJingleConnection).deliveryMessage(from, message, serverMsgId, timestamp);
191 } else {
192 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": " + existingJingleConnection.getClass().getName() + " does not support jingle messages");
193 }
194 return;
195 }
196
197 if (fromSelf) {
198 if ("proceed".equals(message.getName())) {
199 final Conversation c = mXmppConnectionService.findOrCreateConversation(account, id.with, false, false);
200 final Message previousBusy = c.findRtpSession(sessionId, Message.STATUS_RECEIVED);
201 if (previousBusy != null) {
202 previousBusy.setBody(new RtpSessionStatus(true, 0).toString());
203 if (serverMsgId != null) {
204 previousBusy.setServerMsgId(serverMsgId);
205 }
206 previousBusy.setTime(timestamp);
207 mXmppConnectionService.updateMessage(previousBusy, true);
208 Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": updated previous busy because call got picked up by another device");
209 return;
210 }
211 }
212 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ignore jingle message from self");
213 return;
214 }
215
216 if ("propose".equals(message.getName())) {
217 final Propose propose = Propose.upgrade(message);
218 final List<GenericDescription> descriptions = propose.getDescriptions();
219 final Collection<RtpDescription> rtpDescriptions = Collections2.transform(
220 Collections2.filter(descriptions, d -> d instanceof RtpDescription),
221 input -> (RtpDescription) input
222 );
223 if (rtpDescriptions.size() > 0 && rtpDescriptions.size() == descriptions.size() && !usesTor(account)) {
224 final Collection<Media> media = Collections2.transform(rtpDescriptions, RtpDescription::getMedia);
225 if (media.contains(Media.UNKNOWN)) {
226 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": encountered unknown media in session proposal. " + propose);
227 return;
228 }
229 final boolean stranger = isWithStrangerAndStrangerNotificationsAreOff(account, id.with);
230 if (isBusy() || stranger) {
231 writeLogMissedIncoming(account, id.with.asBareJid(), id.sessionId, serverMsgId, timestamp);
232 if (stranger) {
233 Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": ignoring call proposal from stranger " + id.with);
234 return;
235 }
236 final int activeDevices = account.activeDevicesWithRtpCapability();
237 Log.d(Config.LOGTAG, "active devices with rtp capability: " + activeDevices);
238 if (activeDevices == 0) {
239 final MessagePacket reject = mXmppConnectionService.getMessageGenerator().sessionReject(from, sessionId);
240 mXmppConnectionService.sendMessagePacket(account, reject);
241 } else {
242 Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": ignoring proposal because busy on this device but there are other devices");
243 }
244 } else {
245 final JingleRtpConnection rtpConnection = new JingleRtpConnection(this, id, from);
246 this.connections.put(id, rtpConnection);
247 rtpConnection.setProposedMedia(ImmutableSet.copyOf(media));
248 rtpConnection.deliveryMessage(from, message, serverMsgId, timestamp);
249 }
250 } else {
251 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": unable to react to proposed session with " + rtpDescriptions.size() + " rtp descriptions of " + descriptions.size() + " total descriptions");
252 }
253 } else if ("proceed".equals(message.getName())) {
254 synchronized (rtpSessionProposals) {
255 final RtpSessionProposal proposal = getRtpSessionProposal(account, from.asBareJid(), sessionId);
256 if (proposal != null) {
257 rtpSessionProposals.remove(proposal);
258 final JingleRtpConnection rtpConnection = new JingleRtpConnection(this, id, account.getJid());
259 rtpConnection.setProposedMedia(proposal.media);
260 this.connections.put(id, rtpConnection);
261 rtpConnection.transitionOrThrow(AbstractJingleConnection.State.PROPOSED);
262 rtpConnection.deliveryMessage(from, message, serverMsgId, timestamp);
263 } else {
264 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": no rtp session proposal found for " + from + " to deliver proceed");
265 //TODO return error message "item-not-found"
266 }
267 }
268 } else if ("reject".equals(message.getName())) {
269 final RtpSessionProposal proposal = new RtpSessionProposal(account, from.asBareJid(), sessionId);
270 synchronized (rtpSessionProposals) {
271 if (rtpSessionProposals.remove(proposal) != null) {
272 writeLogMissedOutgoing(account, proposal.with, proposal.sessionId, serverMsgId, timestamp);
273 toneManager.transition(RtpEndUserState.DECLINED_OR_BUSY);
274 mXmppConnectionService.notifyJingleRtpConnectionUpdate(account, proposal.with, proposal.sessionId, RtpEndUserState.DECLINED_OR_BUSY);
275 } else {
276 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": no rtp session proposal found for " + from + " to deliver reject");
277 }
278 }
279 } else {
280 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": retrieved out of order jingle message");
281 }
282
283 }
284
285 private RtpSessionProposal getRtpSessionProposal(final Account account, Jid from, String sessionId) {
286 for (RtpSessionProposal rtpSessionProposal : rtpSessionProposals.keySet()) {
287 if (rtpSessionProposal.sessionId.equals(sessionId) && rtpSessionProposal.with.equals(from) && rtpSessionProposal.account.getJid().equals(account.getJid())) {
288 return rtpSessionProposal;
289 }
290 }
291 return null;
292 }
293
294 private void writeLogMissedOutgoing(final Account account, Jid with, final String sessionId, String serverMsgId, long timestamp) {
295 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(
296 account,
297 with.asBareJid(),
298 false,
299 false
300 );
301 final Message message = new Message(
302 conversation,
303 Message.STATUS_SEND,
304 Message.TYPE_RTP_SESSION,
305 sessionId
306 );
307 message.setBody(new RtpSessionStatus(false, 0).toString());
308 message.setServerMsgId(serverMsgId);
309 message.setTime(timestamp);
310 writeMessage(message);
311 }
312
313 private void writeLogMissedIncoming(final Account account, Jid with, final String sessionId, String serverMsgId, long timestamp) {
314 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(
315 account,
316 with.asBareJid(),
317 false,
318 false
319 );
320 final Message message = new Message(
321 conversation,
322 Message.STATUS_RECEIVED,
323 Message.TYPE_RTP_SESSION,
324 sessionId
325 );
326 message.setBody(new RtpSessionStatus(false, 0).toString());
327 message.setServerMsgId(serverMsgId);
328 message.setTime(timestamp);
329 writeMessage(message);
330 }
331
332 private void writeMessage(final Message message) {
333 final Conversational conversational = message.getConversation();
334 if (conversational instanceof Conversation) {
335 ((Conversation) conversational).add(message);
336 mXmppConnectionService.databaseBackend.createMessage(message);
337 mXmppConnectionService.updateConversationUi();
338 } else {
339 throw new IllegalStateException("Somehow the conversation in a message was a stub");
340 }
341 }
342
343 public void startJingleFileTransfer(final Message message) {
344 Preconditions.checkArgument(message.isFileOrImage(), "Message is not of type file or image");
345 final Transferable old = message.getTransferable();
346 if (old != null) {
347 old.cancel();
348 }
349 final Account account = message.getConversation().getAccount();
350 final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(message);
351 final JingleFileTransferConnection connection = new JingleFileTransferConnection(this, id, account.getJid());
352 mXmppConnectionService.markMessage(message, Message.STATUS_WAITING);
353 this.connections.put(id, connection);
354 connection.init(message);
355 }
356
357 public Optional<OngoingRtpSession> getOngoingRtpConnection(final Contact contact) {
358 for (final Map.Entry<AbstractJingleConnection.Id, AbstractJingleConnection> entry : this.connections.entrySet()) {
359 if (entry.getValue() instanceof JingleRtpConnection) {
360 final AbstractJingleConnection.Id id = entry.getKey();
361 if (id.account == contact.getAccount() && id.with.asBareJid().equals(contact.getJid().asBareJid())) {
362 return Optional.of(id);
363 }
364 }
365 }
366 synchronized (this.rtpSessionProposals) {
367 for (Map.Entry<RtpSessionProposal, DeviceDiscoveryState> entry : this.rtpSessionProposals.entrySet()) {
368 RtpSessionProposal proposal = entry.getKey();
369 if (proposal.account == contact.getAccount() && contact.getJid().asBareJid().equals(proposal.with)) {
370 final DeviceDiscoveryState preexistingState = entry.getValue();
371 if (preexistingState != null && preexistingState != DeviceDiscoveryState.FAILED) {
372 return Optional.of(proposal);
373 }
374 }
375 }
376 }
377 return Optional.absent();
378 }
379
380 void finishConnection(final AbstractJingleConnection connection) {
381 this.connections.remove(connection.getId());
382 }
383
384 void getPrimaryCandidate(final Account account, final boolean initiator, final OnPrimaryCandidateFound listener) {
385 if (Config.DISABLE_PROXY_LOOKUP) {
386 listener.onPrimaryCandidateFound(false, null);
387 return;
388 }
389 if (!this.primaryCandidates.containsKey(account.getJid().asBareJid())) {
390 final Jid proxy = account.getXmppConnection().findDiscoItemByFeature(Namespace.BYTE_STREAMS);
391 if (proxy != null) {
392 IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
393 iq.setTo(proxy);
394 iq.query(Namespace.BYTE_STREAMS);
395 account.getXmppConnection().sendIqPacket(iq, new OnIqPacketReceived() {
396
397 @Override
398 public void onIqPacketReceived(Account account, IqPacket packet) {
399 final Element streamhost = packet.query().findChild("streamhost", Namespace.BYTE_STREAMS);
400 final String host = streamhost == null ? null : streamhost.getAttribute("host");
401 final String port = streamhost == null ? null : streamhost.getAttribute("port");
402 if (host != null && port != null) {
403 try {
404 JingleCandidate candidate = new JingleCandidate(nextRandomId(), true);
405 candidate.setHost(host);
406 candidate.setPort(Integer.parseInt(port));
407 candidate.setType(JingleCandidate.TYPE_PROXY);
408 candidate.setJid(proxy);
409 candidate.setPriority(655360 + (initiator ? 30 : 0));
410 primaryCandidates.put(account.getJid().asBareJid(), candidate);
411 listener.onPrimaryCandidateFound(true, candidate);
412 } catch (final NumberFormatException e) {
413 listener.onPrimaryCandidateFound(false, null);
414 }
415 } else {
416 listener.onPrimaryCandidateFound(false, null);
417 }
418 }
419 });
420 } else {
421 listener.onPrimaryCandidateFound(false, null);
422 }
423
424 } else {
425 listener.onPrimaryCandidateFound(true,
426 this.primaryCandidates.get(account.getJid().asBareJid()));
427 }
428 }
429
430 public void retractSessionProposal(final Account account, final Jid with) {
431 synchronized (this.rtpSessionProposals) {
432 RtpSessionProposal matchingProposal = null;
433 for (RtpSessionProposal proposal : this.rtpSessionProposals.keySet()) {
434 if (proposal.account == account && with.asBareJid().equals(proposal.with)) {
435 matchingProposal = proposal;
436 break;
437 }
438 }
439 if (matchingProposal != null) {
440 toneManager.transition(RtpEndUserState.ENDED);
441 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": retracting rtp session proposal with " + with);
442 this.rtpSessionProposals.remove(matchingProposal);
443 final MessagePacket messagePacket = mXmppConnectionService.getMessageGenerator().sessionRetract(matchingProposal);
444 writeLogMissedOutgoing(account, matchingProposal.with, matchingProposal.sessionId, null, System.currentTimeMillis());
445 mXmppConnectionService.sendMessagePacket(account, messagePacket);
446 }
447 }
448 }
449
450 public void proposeJingleRtpSession(final Account account, final Jid with, final Set<Media> media) {
451 synchronized (this.rtpSessionProposals) {
452 for (Map.Entry<RtpSessionProposal, DeviceDiscoveryState> entry : this.rtpSessionProposals.entrySet()) {
453 RtpSessionProposal proposal = entry.getKey();
454 if (proposal.account == account && with.asBareJid().equals(proposal.with)) {
455 final DeviceDiscoveryState preexistingState = entry.getValue();
456 if (preexistingState != null && preexistingState != DeviceDiscoveryState.FAILED) {
457 final RtpEndUserState endUserState = preexistingState.toEndUserState();
458 toneManager.transition(endUserState);
459 mXmppConnectionService.notifyJingleRtpConnectionUpdate(
460 account,
461 with,
462 proposal.sessionId,
463 endUserState
464 );
465 return;
466 }
467 }
468 }
469 if (isBusy()) {
470 throw new IllegalStateException("There is already a running RTP session. This should have been caught by the UI");
471 }
472 final RtpSessionProposal proposal = RtpSessionProposal.of(account, with.asBareJid(), media);
473 this.rtpSessionProposals.put(proposal, DeviceDiscoveryState.SEARCHING);
474 mXmppConnectionService.notifyJingleRtpConnectionUpdate(
475 account,
476 proposal.with,
477 proposal.sessionId,
478 RtpEndUserState.FINDING_DEVICE
479 );
480 final MessagePacket messagePacket = mXmppConnectionService.getMessageGenerator().sessionProposal(proposal);
481 Log.d(Config.LOGTAG, messagePacket.toString());
482 mXmppConnectionService.sendMessagePacket(account, messagePacket);
483 }
484 }
485
486 public void deliverIbbPacket(Account account, IqPacket packet) {
487 final String sid;
488 final Element payload;
489 if (packet.hasChild("open", Namespace.IBB)) {
490 payload = packet.findChild("open", Namespace.IBB);
491 sid = payload.getAttribute("sid");
492 } else if (packet.hasChild("data", Namespace.IBB)) {
493 payload = packet.findChild("data", Namespace.IBB);
494 sid = payload.getAttribute("sid");
495 } else if (packet.hasChild("close", Namespace.IBB)) {
496 payload = packet.findChild("close", Namespace.IBB);
497 sid = payload.getAttribute("sid");
498 } else {
499 payload = null;
500 sid = null;
501 }
502 if (sid != null) {
503 for (final AbstractJingleConnection connection : this.connections.values()) {
504 if (connection instanceof JingleFileTransferConnection) {
505 final JingleFileTransferConnection fileTransfer = (JingleFileTransferConnection) connection;
506 final JingleTransport transport = fileTransfer.getTransport();
507 if (transport instanceof JingleInBandTransport) {
508 final JingleInBandTransport inBandTransport = (JingleInBandTransport) transport;
509 if (inBandTransport.matches(account, sid)) {
510 inBandTransport.deliverPayload(packet, payload);
511 }
512 return;
513 }
514 }
515 }
516 }
517 Log.d(Config.LOGTAG, "unable to deliver ibb packet: " + packet.toString());
518 account.getXmppConnection().sendIqPacket(packet.generateResponse(IqPacket.TYPE.ERROR), null);
519 }
520
521 public void notifyRebound() {
522 for (final AbstractJingleConnection connection : this.connections.values()) {
523 connection.notifyRebound();
524 }
525 }
526
527 public WeakReference<JingleRtpConnection> findJingleRtpConnection(Account account, Jid with, String sessionId) {
528 final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(account, Jid.ofEscaped(with), sessionId);
529 final AbstractJingleConnection connection = connections.get(id);
530 if (connection instanceof JingleRtpConnection) {
531 return new WeakReference<>((JingleRtpConnection) connection);
532 }
533 return null;
534 }
535
536 public void updateProposedSessionDiscovered(Account account, Jid from, String sessionId, final DeviceDiscoveryState target) {
537 synchronized (this.rtpSessionProposals) {
538 final RtpSessionProposal sessionProposal = getRtpSessionProposal(account, from.asBareJid(), sessionId);
539 final DeviceDiscoveryState currentState = sessionProposal == null ? null : rtpSessionProposals.get(sessionProposal);
540 if (currentState == null) {
541 Log.d(Config.LOGTAG, "unable to find session proposal for session id " + sessionId);
542 return;
543 }
544 if (currentState == DeviceDiscoveryState.DISCOVERED) {
545 Log.d(Config.LOGTAG, "session proposal already at discovered. not going to fall back");
546 return;
547 }
548 this.rtpSessionProposals.put(sessionProposal, target);
549 final RtpEndUserState endUserState = target.toEndUserState();
550 toneManager.transition(endUserState);
551 mXmppConnectionService.notifyJingleRtpConnectionUpdate(account, sessionProposal.with, sessionProposal.sessionId, endUserState);
552 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": flagging session " + sessionId + " as " + target);
553 }
554 }
555
556 public void rejectRtpSession(final String sessionId) {
557 for (final AbstractJingleConnection connection : this.connections.values()) {
558 if (connection.getId().sessionId.equals(sessionId)) {
559 if (connection instanceof JingleRtpConnection) {
560 ((JingleRtpConnection) connection).rejectCall();
561 }
562 }
563 }
564 }
565
566 public void endRtpSession(final String sessionId) {
567 for (final AbstractJingleConnection connection : this.connections.values()) {
568 if (connection.getId().sessionId.equals(sessionId)) {
569 if (connection instanceof JingleRtpConnection) {
570 ((JingleRtpConnection) connection).endCall();
571 }
572 }
573 }
574 }
575
576 public void failProceed(Account account, final Jid with, String sessionId) {
577 final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(account, with, sessionId);
578 final AbstractJingleConnection existingJingleConnection = connections.get(id);
579 if (existingJingleConnection instanceof JingleRtpConnection) {
580 ((JingleRtpConnection) existingJingleConnection).deliverFailedProceed();
581 }
582 }
583
584 void ensureConnectionIsRegistered(final AbstractJingleConnection connection) {
585 if (connections.containsValue(connection)) {
586 return;
587 }
588 final IllegalStateException e = new IllegalStateException("JingleConnection has not been registered with connection manager");
589 Log.e(Config.LOGTAG, "ensureConnectionIsRegistered() failed. Going to throw", e);
590 throw e;
591 }
592
593 public void endSession(AbstractJingleConnection.Id id, final AbstractJingleConnection.State state) {
594 this.endedSessions.put(PersistableSessionId.of(id), state);
595 }
596
597 private static class PersistableSessionId {
598 private final Jid with;
599 private final String sessionId;
600
601 private PersistableSessionId(Jid with, String sessionId) {
602 this.with = with;
603 this.sessionId = sessionId;
604 }
605
606 public static PersistableSessionId of(AbstractJingleConnection.Id id) {
607 return new PersistableSessionId(id.with, id.sessionId);
608 }
609
610 @Override
611 public boolean equals(Object o) {
612 if (this == o) return true;
613 if (o == null || getClass() != o.getClass()) return false;
614 PersistableSessionId that = (PersistableSessionId) o;
615 return Objects.equal(with, that.with) &&
616 Objects.equal(sessionId, that.sessionId);
617 }
618
619 @Override
620 public int hashCode() {
621 return Objects.hashCode(with, sessionId);
622 }
623 }
624
625 public enum DeviceDiscoveryState {
626 SEARCHING, DISCOVERED, FAILED;
627
628 public RtpEndUserState toEndUserState() {
629 switch (this) {
630 case SEARCHING:
631 return RtpEndUserState.FINDING_DEVICE;
632 case DISCOVERED:
633 return RtpEndUserState.RINGING;
634 default:
635 return RtpEndUserState.CONNECTIVITY_ERROR;
636 }
637 }
638 }
639
640 public static class RtpSessionProposal implements OngoingRtpSession {
641 public final Jid with;
642 public final String sessionId;
643 public final Set<Media> media;
644 private final Account account;
645
646 private RtpSessionProposal(Account account, Jid with, String sessionId) {
647 this(account, with, sessionId, Collections.emptySet());
648 }
649
650 private RtpSessionProposal(Account account, Jid with, String sessionId, Set<Media> media) {
651 this.account = account;
652 this.with = with;
653 this.sessionId = sessionId;
654 this.media = media;
655 }
656
657 public static RtpSessionProposal of(Account account, Jid with, Set<Media> media) {
658 return new RtpSessionProposal(account, with, nextRandomId(), media);
659 }
660
661 @Override
662 public boolean equals(Object o) {
663 if (this == o) return true;
664 if (o == null || getClass() != o.getClass()) return false;
665 RtpSessionProposal proposal = (RtpSessionProposal) o;
666 return Objects.equal(account.getJid(), proposal.account.getJid()) &&
667 Objects.equal(with, proposal.with) &&
668 Objects.equal(sessionId, proposal.sessionId);
669 }
670
671 @Override
672 public int hashCode() {
673 return Objects.hashCode(account.getJid(), with, sessionId);
674 }
675
676 @Override
677 public Account getAccount() {
678 return account;
679 }
680
681 @Override
682 public Jid getWith() {
683 return with;
684 }
685
686 @Override
687 public String getSessionId() {
688 return sessionId;
689 }
690 }
691}