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.ComparisonChain;
13import com.google.common.collect.ImmutableSet;
14
15import java.lang.ref.WeakReference;
16import java.security.SecureRandom;
17import java.util.Collection;
18import java.util.Collections;
19import java.util.HashMap;
20import java.util.List;
21import java.util.Map;
22import java.util.Set;
23import java.util.concurrent.ConcurrentHashMap;
24import java.util.concurrent.Executors;
25import java.util.concurrent.ScheduledExecutorService;
26import java.util.concurrent.ScheduledFuture;
27import java.util.concurrent.TimeUnit;
28
29import eu.siacs.conversations.Config;
30import eu.siacs.conversations.entities.Account;
31import eu.siacs.conversations.entities.Contact;
32import eu.siacs.conversations.entities.Conversation;
33import eu.siacs.conversations.entities.Conversational;
34import eu.siacs.conversations.entities.Message;
35import eu.siacs.conversations.entities.RtpSessionStatus;
36import eu.siacs.conversations.entities.Transferable;
37import eu.siacs.conversations.services.AbstractConnectionManager;
38import eu.siacs.conversations.services.XmppConnectionService;
39import eu.siacs.conversations.xml.Element;
40import eu.siacs.conversations.xml.Namespace;
41import eu.siacs.conversations.xmpp.Jid;
42import eu.siacs.conversations.xmpp.OnIqPacketReceived;
43import eu.siacs.conversations.xmpp.jingle.stanzas.Content;
44import eu.siacs.conversations.xmpp.jingle.stanzas.FileTransferDescription;
45import eu.siacs.conversations.xmpp.jingle.stanzas.GenericDescription;
46import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
47import eu.siacs.conversations.xmpp.jingle.stanzas.Propose;
48import eu.siacs.conversations.xmpp.jingle.stanzas.Reason;
49import eu.siacs.conversations.xmpp.jingle.stanzas.RtpDescription;
50import eu.siacs.conversations.xmpp.stanzas.IqPacket;
51import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
52
53public class JingleConnectionManager extends AbstractConnectionManager {
54 static final ScheduledExecutorService SCHEDULED_EXECUTOR_SERVICE = Executors.newSingleThreadScheduledExecutor();
55 final ToneManager toneManager;
56 private final HashMap<RtpSessionProposal, DeviceDiscoveryState> rtpSessionProposals = new HashMap<>();
57 private final ConcurrentHashMap<AbstractJingleConnection.Id, AbstractJingleConnection> connections = new ConcurrentHashMap<>();
58
59 private final Cache<PersistableSessionId, TerminatedRtpSession> terminatedSessions = CacheBuilder.newBuilder()
60 .expireAfterWrite(24, TimeUnit.HOURS)
61 .build();
62
63 private final HashMap<Jid, JingleCandidate> primaryCandidates = new HashMap<>();
64
65 public JingleConnectionManager(XmppConnectionService service) {
66 super(service);
67 this.toneManager = new ToneManager(service);
68 }
69
70 static String nextRandomId() {
71 final byte[] id = new byte[16];
72 new SecureRandom().nextBytes(id);
73 return Base64.encodeToString(id, Base64.NO_WRAP | Base64.NO_PADDING);
74 }
75
76 public void deliverPacket(final Account account, final JinglePacket packet) {
77 final String sessionId = packet.getSessionId();
78 if (sessionId == null) {
79 respondWithJingleError(account, packet, "unknown-session", "item-not-found", "cancel");
80 return;
81 }
82 final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(account, packet);
83 final AbstractJingleConnection existingJingleConnection = connections.get(id);
84 if (existingJingleConnection != null) {
85 existingJingleConnection.deliverPacket(packet);
86 } else if (packet.getAction() == JinglePacket.Action.SESSION_INITIATE) {
87 final Jid from = packet.getFrom();
88 final Content content = packet.getJingleContent();
89 final String descriptionNamespace = content == null ? null : content.getDescriptionNamespace();
90 final AbstractJingleConnection connection;
91 if (FileTransferDescription.NAMESPACES.contains(descriptionNamespace)) {
92 connection = new JingleFileTransferConnection(this, id, from);
93 } else if (Namespace.JINGLE_APPS_RTP.equals(descriptionNamespace) && isUsingClearNet(account)) {
94 final boolean sessionEnded = this.terminatedSessions.asMap().containsKey(PersistableSessionId.of(id));
95 final boolean stranger = isWithStrangerAndStrangerNotificationsAreOff(account, id.with);
96 if (isBusy() || sessionEnded || stranger) {
97 Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": rejected session with " + id.with + " because busy. sessionEnded=" + sessionEnded + ", stranger=" + stranger);
98 mXmppConnectionService.sendIqPacket(account, packet.generateResponse(IqPacket.TYPE.RESULT), null);
99 final JinglePacket sessionTermination = new JinglePacket(JinglePacket.Action.SESSION_TERMINATE, id.sessionId);
100 sessionTermination.setTo(id.with);
101 sessionTermination.setReason(Reason.BUSY, null);
102 mXmppConnectionService.sendIqPacket(account, sessionTermination, null);
103 return;
104 }
105 connection = new JingleRtpConnection(this, id, from);
106 } else {
107 respondWithJingleError(account, packet, "unsupported-info", "feature-not-implemented", "cancel");
108 return;
109 }
110 connections.put(id, connection);
111 mXmppConnectionService.updateConversationUi();
112 connection.deliverPacket(packet);
113 } else {
114 Log.d(Config.LOGTAG, "unable to route jingle packet: " + packet);
115 respondWithJingleError(account, packet, "unknown-session", "item-not-found", "cancel");
116 }
117 }
118
119 private boolean isUsingClearNet(final Account account) {
120 return !account.isOnion() && !mXmppConnectionService.useTorToConnect();
121 }
122
123 public boolean isBusy() {
124 if (mXmppConnectionService.isPhoneInCall()) {
125 return true;
126 }
127 for (AbstractJingleConnection connection : this.connections.values()) {
128 if (connection instanceof JingleRtpConnection) {
129 if (((JingleRtpConnection) connection).isTerminated()) {
130 continue;
131 }
132 return true;
133 }
134 }
135 synchronized (this.rtpSessionProposals) {
136 return this.rtpSessionProposals.containsValue(DeviceDiscoveryState.DISCOVERED)
137 || this.rtpSessionProposals.containsValue(DeviceDiscoveryState.SEARCHING)
138 || this.rtpSessionProposals.containsValue(DeviceDiscoveryState.SEARCHING_ACKNOWLEDGED);
139 }
140 }
141
142 public void notifyPhoneCallStarted() {
143 for (AbstractJingleConnection connection : connections.values()) {
144 if (connection instanceof JingleRtpConnection) {
145 final JingleRtpConnection rtpConnection = (JingleRtpConnection) connection;
146 if (rtpConnection.isTerminated()) {
147 continue;
148 }
149 rtpConnection.notifyPhoneCall();
150 }
151 }
152 }
153
154 private Optional<RtpSessionProposal> findMatchingSessionProposal(final Account account, final Jid with, final Set<Media> media) {
155 synchronized (this.rtpSessionProposals) {
156 for (Map.Entry<RtpSessionProposal, DeviceDiscoveryState> entry : this.rtpSessionProposals.entrySet()) {
157 final RtpSessionProposal proposal = entry.getKey();
158 final DeviceDiscoveryState state = entry.getValue();
159 final boolean openProposal = state == DeviceDiscoveryState.DISCOVERED
160 || state == DeviceDiscoveryState.SEARCHING
161 || state == DeviceDiscoveryState.SEARCHING_ACKNOWLEDGED;
162 if (openProposal
163 && proposal.account == account
164 && proposal.with.equals(with.asBareJid())
165 && proposal.media.equals(media)) {
166 return Optional.of(proposal);
167 }
168 }
169 }
170 return Optional.absent();
171 }
172
173 private boolean hasMatchingRtpSession(final Account account, final Jid with, final Set<Media> media) {
174 for (AbstractJingleConnection connection : this.connections.values()) {
175 if (connection instanceof JingleRtpConnection) {
176 final JingleRtpConnection rtpConnection = (JingleRtpConnection) connection;
177 if (rtpConnection.isTerminated()) {
178 continue;
179 }
180 if (rtpConnection.getId().account == account
181 && rtpConnection.getId().with.asBareJid().equals(with.asBareJid())
182 && rtpConnection.getMedia().equals(media)) {
183 return true;
184 }
185 }
186 }
187 return false;
188 }
189
190 private boolean isWithStrangerAndStrangerNotificationsAreOff(final Account account, Jid with) {
191 final boolean notifyForStrangers = mXmppConnectionService.getNotificationService().notificationsFromStrangers();
192 if (notifyForStrangers) {
193 return false;
194 }
195 final Contact contact = account.getRoster().getContact(with);
196 return !contact.showInContactList();
197 }
198
199 ScheduledFuture<?> schedule(final Runnable runnable, final long delay, final TimeUnit timeUnit) {
200 return SCHEDULED_EXECUTOR_SERVICE.schedule(runnable, delay, timeUnit);
201 }
202
203 void respondWithJingleError(final Account account, final IqPacket original, String jingleCondition, String condition, String conditionType) {
204 final IqPacket response = original.generateResponse(IqPacket.TYPE.ERROR);
205 final Element error = response.addChild("error");
206 error.setAttribute("type", conditionType);
207 error.addChild(condition, "urn:ietf:params:xml:ns:xmpp-stanzas");
208 error.addChild(jingleCondition, "urn:xmpp:jingle:errors:1");
209 account.getXmppConnection().sendIqPacket(response, null);
210 }
211
212 public void deliverMessage(final Account account, final Jid to, final Jid from, final Element message, String remoteMsgId, String serverMsgId, long timestamp) {
213 Preconditions.checkArgument(Namespace.JINGLE_MESSAGE.equals(message.getNamespace()));
214 final String sessionId = message.getAttribute("id");
215 if (sessionId == null) {
216 return;
217 }
218 if ("accept".equals(message.getName())) {
219 for (AbstractJingleConnection connection : connections.values()) {
220 if (connection instanceof JingleRtpConnection) {
221 final JingleRtpConnection rtpConnection = (JingleRtpConnection) connection;
222 final AbstractJingleConnection.Id id = connection.getId();
223 if (id.account == account && id.sessionId.equals(sessionId)) {
224 rtpConnection.deliveryMessage(from, message, serverMsgId, timestamp);
225 return;
226 }
227 }
228 }
229 return;
230 }
231 final boolean fromSelf = from.asBareJid().equals(account.getJid().asBareJid());
232 final boolean addressedDirectly = to != null && to.equals(account.getJid());
233 final AbstractJingleConnection.Id id;
234 if (fromSelf) {
235 if (to != null && to.isFullJid()) {
236 id = AbstractJingleConnection.Id.of(account, to, sessionId);
237 } else {
238 return;
239 }
240 } else {
241 id = AbstractJingleConnection.Id.of(account, from, sessionId);
242 }
243 final AbstractJingleConnection existingJingleConnection = connections.get(id);
244 if (existingJingleConnection != null) {
245 if (existingJingleConnection instanceof JingleRtpConnection) {
246 ((JingleRtpConnection) existingJingleConnection).deliveryMessage(from, message, serverMsgId, timestamp);
247 } else {
248 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": " + existingJingleConnection.getClass().getName() + " does not support jingle messages");
249 }
250 return;
251 }
252
253 if (fromSelf) {
254 if ("proceed".equals(message.getName())) {
255 final Conversation c = mXmppConnectionService.findOrCreateConversation(account, id.with, false, false);
256 final Message previousBusy = c.findRtpSession(sessionId, Message.STATUS_RECEIVED);
257 if (previousBusy != null) {
258 previousBusy.setBody(new RtpSessionStatus(true, 0).toString());
259 if (serverMsgId != null) {
260 previousBusy.setServerMsgId(serverMsgId);
261 }
262 previousBusy.setTime(timestamp);
263 mXmppConnectionService.updateMessage(previousBusy, true);
264 Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": updated previous busy because call got picked up by another device");
265 return;
266 }
267 }
268 //TODO handle reject for cases where we don’t have carbon copies (normally reject is to be sent to own bare jid as well)
269 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ignore jingle message from self");
270 return;
271 }
272
273 if ("propose".equals(message.getName())) {
274 final Propose propose = Propose.upgrade(message);
275 final List<GenericDescription> descriptions = propose.getDescriptions();
276 final Collection<RtpDescription> rtpDescriptions = Collections2.transform(
277 Collections2.filter(descriptions, d -> d instanceof RtpDescription),
278 input -> (RtpDescription) input
279 );
280 if (rtpDescriptions.size() > 0 && rtpDescriptions.size() == descriptions.size() && isUsingClearNet(account)) {
281 final Collection<Media> media = Collections2.transform(rtpDescriptions, RtpDescription::getMedia);
282 if (media.contains(Media.UNKNOWN)) {
283 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": encountered unknown media in session proposal. " + propose);
284 return;
285 }
286 final Optional<RtpSessionProposal> matchingSessionProposal = findMatchingSessionProposal(account, id.with, ImmutableSet.copyOf(media));
287 if (matchingSessionProposal.isPresent()) {
288 final String ourSessionId = matchingSessionProposal.get().sessionId;
289 final String theirSessionId = id.sessionId;
290 if (ComparisonChain.start()
291 .compare(ourSessionId, theirSessionId)
292 .compare(account.getJid().toEscapedString(), id.with.toEscapedString())
293 .result() > 0) {
294 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": our session lost tie break. automatically accepting their session. winning Session=" + theirSessionId);
295 //TODO a retract for this reason should probably include some indication of tie break
296 retractSessionProposal(matchingSessionProposal.get());
297 final JingleRtpConnection rtpConnection = new JingleRtpConnection(this, id, from);
298 this.connections.put(id, rtpConnection);
299 rtpConnection.setProposedMedia(ImmutableSet.copyOf(media));
300 rtpConnection.deliveryMessage(from, message, serverMsgId, timestamp);
301 } else {
302 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": our session won tie break. waiting for other party to accept. winningSession=" + ourSessionId);
303 }
304 return;
305 }
306 final boolean stranger = isWithStrangerAndStrangerNotificationsAreOff(account, id.with);
307 if (isBusy() || stranger) {
308 writeLogMissedIncoming(account, id.with.asBareJid(), id.sessionId, serverMsgId, timestamp);
309 if (stranger) {
310 Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": ignoring call proposal from stranger " + id.with);
311 return;
312 }
313 final int activeDevices = account.activeDevicesWithRtpCapability();
314 Log.d(Config.LOGTAG, "active devices with rtp capability: " + activeDevices);
315 if (activeDevices == 0) {
316 final MessagePacket reject = mXmppConnectionService.getMessageGenerator().sessionReject(from, sessionId);
317 mXmppConnectionService.sendMessagePacket(account, reject);
318 } else {
319 Log.d(Config.LOGTAG, id.account.getJid().asBareJid() + ": ignoring proposal because busy on this device but there are other devices");
320 }
321 } else {
322 final JingleRtpConnection rtpConnection = new JingleRtpConnection(this, id, from);
323 this.connections.put(id, rtpConnection);
324 rtpConnection.setProposedMedia(ImmutableSet.copyOf(media));
325 rtpConnection.deliveryMessage(from, message, serverMsgId, timestamp);
326 }
327 } else {
328 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": unable to react to proposed session with " + rtpDescriptions.size() + " rtp descriptions of " + descriptions.size() + " total descriptions");
329 }
330 } else if (addressedDirectly && "proceed".equals(message.getName())) {
331 synchronized (rtpSessionProposals) {
332 final RtpSessionProposal proposal = getRtpSessionProposal(account, from.asBareJid(), sessionId);
333 if (proposal != null) {
334 rtpSessionProposals.remove(proposal);
335 final JingleRtpConnection rtpConnection = new JingleRtpConnection(this, id, account.getJid());
336 rtpConnection.setProposedMedia(proposal.media);
337 this.connections.put(id, rtpConnection);
338 rtpConnection.transitionOrThrow(AbstractJingleConnection.State.PROPOSED);
339 rtpConnection.deliveryMessage(from, message, serverMsgId, timestamp);
340 } else {
341 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": no rtp session proposal found for " + from + " to deliver proceed");
342 if (remoteMsgId == null) {
343 return;
344 }
345 final MessagePacket errorMessage = new MessagePacket();
346 errorMessage.setTo(from);
347 errorMessage.setId(remoteMsgId);
348 errorMessage.setType(MessagePacket.TYPE_ERROR);
349 final Element error = errorMessage.addChild("error");
350 error.setAttribute("code", "404");
351 error.setAttribute("type", "cancel");
352 error.addChild("item-not-found", "urn:ietf:params:xml:ns:xmpp-stanzas");
353 mXmppConnectionService.sendMessagePacket(account, errorMessage);
354 }
355 }
356 } else if (addressedDirectly && "reject".equals(message.getName())) {
357 final RtpSessionProposal proposal = getRtpSessionProposal(account, from.asBareJid(), sessionId);
358 synchronized (rtpSessionProposals) {
359 if (proposal != null && rtpSessionProposals.remove(proposal) != null) {
360 writeLogMissedOutgoing(account, proposal.with, proposal.sessionId, serverMsgId, timestamp);
361 toneManager.transition(RtpEndUserState.DECLINED_OR_BUSY, proposal.media);
362 mXmppConnectionService.notifyJingleRtpConnectionUpdate(account, proposal.with, proposal.sessionId, RtpEndUserState.DECLINED_OR_BUSY);
363 } else {
364 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": no rtp session proposal found for " + from + " to deliver reject");
365 }
366 }
367 } else {
368 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": retrieved out of order jingle message" + message);
369 }
370
371 }
372
373 private RtpSessionProposal getRtpSessionProposal(final Account account, Jid from, String sessionId) {
374 for (RtpSessionProposal rtpSessionProposal : rtpSessionProposals.keySet()) {
375 if (rtpSessionProposal.sessionId.equals(sessionId) && rtpSessionProposal.with.equals(from) && rtpSessionProposal.account.getJid().equals(account.getJid())) {
376 return rtpSessionProposal;
377 }
378 }
379 return null;
380 }
381
382 private void writeLogMissedOutgoing(final Account account, Jid with, final String sessionId, String serverMsgId, long timestamp) {
383 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(
384 account,
385 with.asBareJid(),
386 false,
387 false
388 );
389 final Message message = new Message(
390 conversation,
391 Message.STATUS_SEND,
392 Message.TYPE_RTP_SESSION,
393 sessionId
394 );
395 message.setBody(new RtpSessionStatus(false, 0).toString());
396 message.setServerMsgId(serverMsgId);
397 message.setTime(timestamp);
398 writeMessage(message);
399 }
400
401 private void writeLogMissedIncoming(final Account account, Jid with, final String sessionId, String serverMsgId, long timestamp) {
402 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(
403 account,
404 with.asBareJid(),
405 false,
406 false
407 );
408 final Message message = new Message(
409 conversation,
410 Message.STATUS_RECEIVED,
411 Message.TYPE_RTP_SESSION,
412 sessionId
413 );
414 message.setBody(new RtpSessionStatus(false, 0).toString());
415 message.setServerMsgId(serverMsgId);
416 message.setTime(timestamp);
417 writeMessage(message);
418 }
419
420 private void writeMessage(final Message message) {
421 final Conversational conversational = message.getConversation();
422 if (conversational instanceof Conversation) {
423 ((Conversation) conversational).add(message);
424 mXmppConnectionService.databaseBackend.createMessage(message);
425 mXmppConnectionService.updateConversationUi();
426 } else {
427 throw new IllegalStateException("Somehow the conversation in a message was a stub");
428 }
429 }
430
431 public void startJingleFileTransfer(final Message message) {
432 Preconditions.checkArgument(message.isFileOrImage(), "Message is not of type file or image");
433 final Transferable old = message.getTransferable();
434 if (old != null) {
435 old.cancel();
436 }
437 final Account account = message.getConversation().getAccount();
438 final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(message);
439 final JingleFileTransferConnection connection = new JingleFileTransferConnection(this, id, account.getJid());
440 mXmppConnectionService.markMessage(message, Message.STATUS_WAITING);
441 this.connections.put(id, connection);
442 connection.init(message);
443 }
444
445 public Optional<OngoingRtpSession> getOngoingRtpConnection(final Contact contact) {
446 for (final Map.Entry<AbstractJingleConnection.Id, AbstractJingleConnection> entry : this.connections.entrySet()) {
447 if (entry.getValue() instanceof JingleRtpConnection) {
448 final AbstractJingleConnection.Id id = entry.getKey();
449 if (id.account == contact.getAccount() && id.with.asBareJid().equals(contact.getJid().asBareJid())) {
450 return Optional.of(id);
451 }
452 }
453 }
454 synchronized (this.rtpSessionProposals) {
455 for (Map.Entry<RtpSessionProposal, DeviceDiscoveryState> entry : this.rtpSessionProposals.entrySet()) {
456 RtpSessionProposal proposal = entry.getKey();
457 if (proposal.account == contact.getAccount() && contact.getJid().asBareJid().equals(proposal.with)) {
458 final DeviceDiscoveryState preexistingState = entry.getValue();
459 if (preexistingState != null && preexistingState != DeviceDiscoveryState.FAILED) {
460 return Optional.of(proposal);
461 }
462 }
463 }
464 }
465 return Optional.absent();
466 }
467
468 void finishConnection(final AbstractJingleConnection connection) {
469 this.connections.remove(connection.getId());
470 }
471
472 void finishConnectionOrThrow(final AbstractJingleConnection connection) {
473 final AbstractJingleConnection.Id id = connection.getId();
474 if (this.connections.remove(id) == null) {
475 throw new IllegalStateException(String.format("Unable to finish connection with id=%s", id.toString()));
476 }
477 }
478
479 public boolean fireJingleRtpConnectionStateUpdates() {
480 boolean firedUpdates = false;
481 for (final AbstractJingleConnection connection : this.connections.values()) {
482 if (connection instanceof JingleRtpConnection) {
483 final JingleRtpConnection jingleRtpConnection = (JingleRtpConnection) connection;
484 if (jingleRtpConnection.isTerminated()) {
485 continue;
486 }
487 jingleRtpConnection.fireStateUpdate();
488 firedUpdates = true;
489 }
490 }
491 return firedUpdates;
492 }
493
494 void getPrimaryCandidate(final Account account, final boolean initiator, final OnPrimaryCandidateFound listener) {
495 if (Config.DISABLE_PROXY_LOOKUP) {
496 listener.onPrimaryCandidateFound(false, null);
497 return;
498 }
499 if (!this.primaryCandidates.containsKey(account.getJid().asBareJid())) {
500 final Jid proxy = account.getXmppConnection().findDiscoItemByFeature(Namespace.BYTE_STREAMS);
501 if (proxy != null) {
502 IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
503 iq.setTo(proxy);
504 iq.query(Namespace.BYTE_STREAMS);
505 account.getXmppConnection().sendIqPacket(iq, new OnIqPacketReceived() {
506
507 @Override
508 public void onIqPacketReceived(Account account, IqPacket packet) {
509 final Element streamhost = packet.query().findChild("streamhost", Namespace.BYTE_STREAMS);
510 final String host = streamhost == null ? null : streamhost.getAttribute("host");
511 final String port = streamhost == null ? null : streamhost.getAttribute("port");
512 if (host != null && port != null) {
513 try {
514 JingleCandidate candidate = new JingleCandidate(nextRandomId(), true);
515 candidate.setHost(host);
516 candidate.setPort(Integer.parseInt(port));
517 candidate.setType(JingleCandidate.TYPE_PROXY);
518 candidate.setJid(proxy);
519 candidate.setPriority(655360 + (initiator ? 30 : 0));
520 primaryCandidates.put(account.getJid().asBareJid(), candidate);
521 listener.onPrimaryCandidateFound(true, candidate);
522 } catch (final NumberFormatException e) {
523 listener.onPrimaryCandidateFound(false, null);
524 }
525 } else {
526 listener.onPrimaryCandidateFound(false, null);
527 }
528 }
529 });
530 } else {
531 listener.onPrimaryCandidateFound(false, null);
532 }
533
534 } else {
535 listener.onPrimaryCandidateFound(true,
536 this.primaryCandidates.get(account.getJid().asBareJid()));
537 }
538 }
539
540 public void retractSessionProposal(final Account account, final Jid with) {
541 synchronized (this.rtpSessionProposals) {
542 RtpSessionProposal matchingProposal = null;
543 for (RtpSessionProposal proposal : this.rtpSessionProposals.keySet()) {
544 if (proposal.account == account && with.asBareJid().equals(proposal.with)) {
545 matchingProposal = proposal;
546 break;
547 }
548 }
549 if (matchingProposal != null) {
550 retractSessionProposal(matchingProposal);
551 }
552 }
553 }
554
555 private void retractSessionProposal(RtpSessionProposal rtpSessionProposal) {
556 final Account account = rtpSessionProposal.account;
557 toneManager.transition(RtpEndUserState.ENDED, rtpSessionProposal.media);
558 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": retracting rtp session proposal with " + rtpSessionProposal.with);
559 this.rtpSessionProposals.remove(rtpSessionProposal);
560 final MessagePacket messagePacket = mXmppConnectionService.getMessageGenerator().sessionRetract(rtpSessionProposal);
561 writeLogMissedOutgoing(account, rtpSessionProposal.with, rtpSessionProposal.sessionId, null, System.currentTimeMillis());
562 mXmppConnectionService.sendMessagePacket(account, messagePacket);
563 }
564
565 public String initializeRtpSession(final Account account, final Jid with, final Set<Media> media) {
566 final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(account, with);
567 final JingleRtpConnection rtpConnection = new JingleRtpConnection(this, id, account.getJid());
568 rtpConnection.setProposedMedia(media);
569 this.connections.put(id, rtpConnection);
570 rtpConnection.sendSessionInitiate();
571 return id.sessionId;
572 }
573
574 public void proposeJingleRtpSession(final Account account, final Jid with, final Set<Media> media) {
575 synchronized (this.rtpSessionProposals) {
576 for (Map.Entry<RtpSessionProposal, DeviceDiscoveryState> entry : this.rtpSessionProposals.entrySet()) {
577 RtpSessionProposal proposal = entry.getKey();
578 if (proposal.account == account && with.asBareJid().equals(proposal.with)) {
579 final DeviceDiscoveryState preexistingState = entry.getValue();
580 if (preexistingState != null && preexistingState != DeviceDiscoveryState.FAILED) {
581 final RtpEndUserState endUserState = preexistingState.toEndUserState();
582 toneManager.transition(endUserState, media);
583 mXmppConnectionService.notifyJingleRtpConnectionUpdate(
584 account,
585 with,
586 proposal.sessionId,
587 endUserState
588 );
589 return;
590 }
591 }
592 }
593 if (isBusy()) {
594 if (hasMatchingRtpSession(account, with, media)) {
595 Log.d(Config.LOGTAG, "ignoring request to propose jingle session because the other party already created one for us");
596 return;
597 }
598 throw new IllegalStateException("There is already a running RTP session. This should have been caught by the UI");
599 }
600 final RtpSessionProposal proposal = RtpSessionProposal.of(account, with.asBareJid(), media);
601 this.rtpSessionProposals.put(proposal, DeviceDiscoveryState.SEARCHING);
602 mXmppConnectionService.notifyJingleRtpConnectionUpdate(
603 account,
604 proposal.with,
605 proposal.sessionId,
606 RtpEndUserState.FINDING_DEVICE
607 );
608 final MessagePacket messagePacket = mXmppConnectionService.getMessageGenerator().sessionProposal(proposal);
609 mXmppConnectionService.sendMessagePacket(account, messagePacket);
610 }
611 }
612
613 public boolean hasMatchingProposal(final Account account, final Jid with) {
614 synchronized (this.rtpSessionProposals) {
615 for (Map.Entry<RtpSessionProposal, DeviceDiscoveryState> entry : this.rtpSessionProposals.entrySet()) {
616 final RtpSessionProposal proposal = entry.getKey();
617 if (proposal.account == account && with.asBareJid().equals(proposal.with)) {
618 return true;
619 }
620 }
621 }
622 return false;
623 }
624
625 public void deliverIbbPacket(Account account, IqPacket packet) {
626 final String sid;
627 final Element payload;
628 if (packet.hasChild("open", Namespace.IBB)) {
629 payload = packet.findChild("open", Namespace.IBB);
630 sid = payload.getAttribute("sid");
631 } else if (packet.hasChild("data", Namespace.IBB)) {
632 payload = packet.findChild("data", Namespace.IBB);
633 sid = payload.getAttribute("sid");
634 } else if (packet.hasChild("close", Namespace.IBB)) {
635 payload = packet.findChild("close", Namespace.IBB);
636 sid = payload.getAttribute("sid");
637 } else {
638 payload = null;
639 sid = null;
640 }
641 if (sid != null) {
642 for (final AbstractJingleConnection connection : this.connections.values()) {
643 if (connection instanceof JingleFileTransferConnection) {
644 final JingleFileTransferConnection fileTransfer = (JingleFileTransferConnection) connection;
645 final JingleTransport transport = fileTransfer.getTransport();
646 if (transport instanceof JingleInBandTransport) {
647 final JingleInBandTransport inBandTransport = (JingleInBandTransport) transport;
648 if (inBandTransport.matches(account, sid)) {
649 inBandTransport.deliverPayload(packet, payload);
650 }
651 return;
652 }
653 }
654 }
655 }
656 Log.d(Config.LOGTAG, "unable to deliver ibb packet: " + packet.toString());
657 account.getXmppConnection().sendIqPacket(packet.generateResponse(IqPacket.TYPE.ERROR), null);
658 }
659
660 public void notifyRebound(final Account account) {
661 for (final AbstractJingleConnection connection : this.connections.values()) {
662 connection.notifyRebound();
663 }
664 resendSessionProposals(account);
665 }
666
667 public WeakReference<JingleRtpConnection> findJingleRtpConnection(Account account, Jid with, String sessionId) {
668 final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(account, with, sessionId);
669 final AbstractJingleConnection connection = connections.get(id);
670 if (connection instanceof JingleRtpConnection) {
671 return new WeakReference<>((JingleRtpConnection) connection);
672 }
673 return null;
674 }
675
676 private void resendSessionProposals(final Account account) {
677 synchronized (this.rtpSessionProposals) {
678 for (final Map.Entry<RtpSessionProposal, DeviceDiscoveryState> entry : this.rtpSessionProposals.entrySet()) {
679 final RtpSessionProposal proposal = entry.getKey();
680 if (entry.getValue() == DeviceDiscoveryState.SEARCHING && proposal.account == account) {
681 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": resending session proposal to " + proposal.with);
682 final MessagePacket messagePacket = mXmppConnectionService.getMessageGenerator().sessionProposal(proposal);
683 mXmppConnectionService.sendMessagePacket(account, messagePacket);
684 }
685 }
686 }
687 }
688
689 public void updateProposedSessionDiscovered(Account account, Jid from, String sessionId, final DeviceDiscoveryState target) {
690 synchronized (this.rtpSessionProposals) {
691 final RtpSessionProposal sessionProposal = getRtpSessionProposal(account, from.asBareJid(), sessionId);
692 final DeviceDiscoveryState currentState = sessionProposal == null ? null : rtpSessionProposals.get(sessionProposal);
693 if (currentState == null) {
694 Log.d(Config.LOGTAG, "unable to find session proposal for session id " + sessionId);
695 return;
696 }
697 if (currentState == DeviceDiscoveryState.DISCOVERED) {
698 Log.d(Config.LOGTAG, "session proposal already at discovered. not going to fall back");
699 return;
700 }
701 this.rtpSessionProposals.put(sessionProposal, target);
702 final RtpEndUserState endUserState = target.toEndUserState();
703 toneManager.transition(endUserState, sessionProposal.media);
704 mXmppConnectionService.notifyJingleRtpConnectionUpdate(account, sessionProposal.with, sessionProposal.sessionId, endUserState);
705 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": flagging session " + sessionId + " as " + target);
706 }
707 }
708
709 public void rejectRtpSession(final String sessionId) {
710 for (final AbstractJingleConnection connection : this.connections.values()) {
711 if (connection.getId().sessionId.equals(sessionId)) {
712 if (connection instanceof JingleRtpConnection) {
713 ((JingleRtpConnection) connection).rejectCall();
714 }
715 }
716 }
717 }
718
719 public void endRtpSession(final String sessionId) {
720 for (final AbstractJingleConnection connection : this.connections.values()) {
721 if (connection.getId().sessionId.equals(sessionId)) {
722 if (connection instanceof JingleRtpConnection) {
723 ((JingleRtpConnection) connection).endCall();
724 }
725 }
726 }
727 }
728
729 public void failProceed(Account account, final Jid with, String sessionId) {
730 final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(account, with, sessionId);
731 final AbstractJingleConnection existingJingleConnection = connections.get(id);
732 if (existingJingleConnection instanceof JingleRtpConnection) {
733 ((JingleRtpConnection) existingJingleConnection).deliverFailedProceed();
734 }
735 }
736
737 void ensureConnectionIsRegistered(final AbstractJingleConnection connection) {
738 if (connections.containsValue(connection)) {
739 return;
740 }
741 final IllegalStateException e = new IllegalStateException("JingleConnection has not been registered with connection manager");
742 Log.e(Config.LOGTAG, "ensureConnectionIsRegistered() failed. Going to throw", e);
743 throw e;
744 }
745
746 void setTerminalSessionState(AbstractJingleConnection.Id id, final RtpEndUserState state, final Set<Media> media) {
747 this.terminatedSessions.put(PersistableSessionId.of(id), new TerminatedRtpSession(state, media));
748 }
749
750 public TerminatedRtpSession getTerminalSessionState(final Jid with, final String sessionId) {
751 return this.terminatedSessions.getIfPresent(new PersistableSessionId(with, sessionId));
752 }
753
754 private static class PersistableSessionId {
755 private final Jid with;
756 private final String sessionId;
757
758 private PersistableSessionId(Jid with, String sessionId) {
759 this.with = with;
760 this.sessionId = sessionId;
761 }
762
763 public static PersistableSessionId of(AbstractJingleConnection.Id id) {
764 return new PersistableSessionId(id.with, id.sessionId);
765 }
766
767 @Override
768 public boolean equals(Object o) {
769 if (this == o) return true;
770 if (o == null || getClass() != o.getClass()) return false;
771 PersistableSessionId that = (PersistableSessionId) o;
772 return Objects.equal(with, that.with) &&
773 Objects.equal(sessionId, that.sessionId);
774 }
775
776 @Override
777 public int hashCode() {
778 return Objects.hashCode(with, sessionId);
779 }
780 }
781
782 public static class TerminatedRtpSession {
783 public final RtpEndUserState state;
784 public final Set<Media> media;
785
786 TerminatedRtpSession(RtpEndUserState state, Set<Media> media) {
787 this.state = state;
788 this.media = media;
789 }
790 }
791
792 public enum DeviceDiscoveryState {
793 SEARCHING, SEARCHING_ACKNOWLEDGED, DISCOVERED, FAILED;
794
795 public RtpEndUserState toEndUserState() {
796 switch (this) {
797 case SEARCHING:
798 case SEARCHING_ACKNOWLEDGED:
799 return RtpEndUserState.FINDING_DEVICE;
800 case DISCOVERED:
801 return RtpEndUserState.RINGING;
802 default:
803 return RtpEndUserState.CONNECTIVITY_ERROR;
804 }
805 }
806 }
807
808 public static class RtpSessionProposal implements OngoingRtpSession {
809 public final Jid with;
810 public final String sessionId;
811 public final Set<Media> media;
812 private final Account account;
813
814 private RtpSessionProposal(Account account, Jid with, String sessionId) {
815 this(account, with, sessionId, Collections.emptySet());
816 }
817
818 private RtpSessionProposal(Account account, Jid with, String sessionId, Set<Media> media) {
819 this.account = account;
820 this.with = with;
821 this.sessionId = sessionId;
822 this.media = media;
823 }
824
825 public static RtpSessionProposal of(Account account, Jid with, Set<Media> media) {
826 return new RtpSessionProposal(account, with, nextRandomId(), media);
827 }
828
829 @Override
830 public boolean equals(Object o) {
831 if (this == o) return true;
832 if (o == null || getClass() != o.getClass()) return false;
833 RtpSessionProposal proposal = (RtpSessionProposal) o;
834 return Objects.equal(account.getJid(), proposal.account.getJid()) &&
835 Objects.equal(with, proposal.with) &&
836 Objects.equal(sessionId, proposal.sessionId);
837 }
838
839 @Override
840 public int hashCode() {
841 return Objects.hashCode(account.getJid(), with, sessionId);
842 }
843
844 @Override
845 public Account getAccount() {
846 return account;
847 }
848
849 @Override
850 public Jid getWith() {
851 return with;
852 }
853
854 @Override
855 public String getSessionId() {
856 return sessionId;
857 }
858 }
859}