package eu.siacs.conversations.xmpp.jingle; import android.util.Base64; import android.util.Log; import com.google.common.base.Objects; import com.google.common.base.Optional; import com.google.common.base.Preconditions; import com.google.common.cache.Cache; import com.google.common.cache.CacheBuilder; import com.google.common.collect.Collections2; import com.google.common.collect.ComparisonChain; import com.google.common.collect.ImmutableSet; import java.lang.ref.WeakReference; import java.security.SecureRandom; import java.util.Collection; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Set; import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.Executors; import java.util.concurrent.ScheduledExecutorService; import java.util.concurrent.ScheduledFuture; import java.util.concurrent.TimeUnit; import eu.siacs.conversations.Config; import eu.siacs.conversations.entities.Account; import eu.siacs.conversations.entities.Contact; import eu.siacs.conversations.entities.Conversation; import eu.siacs.conversations.entities.Conversational; import eu.siacs.conversations.entities.Message; import eu.siacs.conversations.entities.RtpSessionStatus; import eu.siacs.conversations.entities.Transferable; import eu.siacs.conversations.services.AbstractConnectionManager; import eu.siacs.conversations.services.XmppConnectionService; import eu.siacs.conversations.xml.Element; import eu.siacs.conversations.xml.Namespace; import eu.siacs.conversations.xmpp.Jid; import eu.siacs.conversations.xmpp.OnIqPacketReceived; import eu.siacs.conversations.xmpp.XmppConnection; import eu.siacs.conversations.xmpp.jingle.stanzas.Content; import eu.siacs.conversations.xmpp.jingle.stanzas.FileTransferDescription; import eu.siacs.conversations.xmpp.jingle.stanzas.GenericDescription; import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket; import eu.siacs.conversations.xmpp.jingle.stanzas.Propose; import eu.siacs.conversations.xmpp.jingle.stanzas.Reason; import eu.siacs.conversations.xmpp.jingle.stanzas.RtpDescription; import eu.siacs.conversations.xmpp.stanzas.IqPacket; import eu.siacs.conversations.xmpp.stanzas.MessagePacket; public class JingleConnectionManager extends AbstractConnectionManager { static final ScheduledExecutorService SCHEDULED_EXECUTOR_SERVICE = Executors.newSingleThreadScheduledExecutor(); final ToneManager toneManager; private final HashMap rtpSessionProposals = new HashMap<>(); private final ConcurrentHashMap connections = new ConcurrentHashMap<>(); private final Cache terminatedSessions = CacheBuilder.newBuilder().expireAfterWrite(24, TimeUnit.HOURS).build(); private final HashMap primaryCandidates = new HashMap<>(); public JingleConnectionManager(XmppConnectionService service) { super(service); this.toneManager = new ToneManager(service); } static String nextRandomId() { final byte[] id = new byte[16]; new SecureRandom().nextBytes(id); return Base64.encodeToString(id, Base64.NO_WRAP | Base64.NO_PADDING); } public void deliverPacket(final Account account, final JinglePacket packet) { final String sessionId = packet.getSessionId(); if (sessionId == null) { respondWithJingleError(account, packet, "unknown-session", "item-not-found", "cancel"); return; } final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(account, packet); final AbstractJingleConnection existingJingleConnection = connections.get(id); if (existingJingleConnection != null) { existingJingleConnection.deliverPacket(packet); } else if (packet.getAction() == JinglePacket.Action.SESSION_INITIATE) { final Jid from = packet.getFrom(); final Content content = packet.getJingleContent(); final String descriptionNamespace = content == null ? null : content.getDescriptionNamespace(); final AbstractJingleConnection connection; if (FileTransferDescription.NAMESPACES.contains(descriptionNamespace)) { connection = new JingleFileTransferConnection(this, id, from); } else if (Namespace.JINGLE_APPS_RTP.equals(descriptionNamespace) && isUsingClearNet(account)) { final boolean sessionEnded = this.terminatedSessions.asMap().containsKey(PersistableSessionId.of(id)); final boolean stranger = isWithStrangerAndStrangerNotificationsAreOff(account, id.with); if (isBusy() != null || sessionEnded || stranger) { Log.d( Config.LOGTAG, id.account.getJid().asBareJid() + ": rejected session with " + id.with + " because busy. sessionEnded=" + sessionEnded + ", stranger=" + stranger); mXmppConnectionService.sendIqPacket( account, packet.generateResponse(IqPacket.TYPE.RESULT), null); final JinglePacket sessionTermination = new JinglePacket(JinglePacket.Action.SESSION_TERMINATE, id.sessionId); sessionTermination.setTo(id.with); sessionTermination.setReason(Reason.BUSY, null); mXmppConnectionService.sendIqPacket(account, sessionTermination, null); return; } connection = new JingleRtpConnection(this, id, from); } else { respondWithJingleError( account, packet, "unsupported-info", "feature-not-implemented", "cancel"); return; } connections.put(id, connection); mXmppConnectionService.updateConversationUi(); connection.deliverPacket(packet); } else { Log.d(Config.LOGTAG, "unable to route jingle packet: " + packet); respondWithJingleError(account, packet, "unknown-session", "item-not-found", "cancel"); } } private boolean isUsingClearNet(final Account account) { return !account.isOnion() && !mXmppConnectionService.useTorToConnect(); } public String isBusy() { if (mXmppConnectionService.isPhoneInCall()) { return "isPhoneInCall"; } for (AbstractJingleConnection connection : this.connections.values()) { if (connection instanceof JingleRtpConnection) { if (((JingleRtpConnection) connection).isTerminated()) { continue; } return "connection !isTerminated"; } } synchronized (this.rtpSessionProposals) { if (this.rtpSessionProposals.containsValue(DeviceDiscoveryState.DISCOVERED)) return "discovered"; if (this.rtpSessionProposals.containsValue(DeviceDiscoveryState.SEARCHING)) return "searching"; if (this.rtpSessionProposals.containsValue(DeviceDiscoveryState.SEARCHING_ACKNOWLEDGED)) return "searching_acknolwedged"; return null; } } public void notifyPhoneCallStarted() { for (AbstractJingleConnection connection : connections.values()) { if (connection instanceof JingleRtpConnection) { final JingleRtpConnection rtpConnection = (JingleRtpConnection) connection; if (rtpConnection.isTerminated()) { continue; } rtpConnection.notifyPhoneCall(); } } } private Optional findMatchingSessionProposal( final Account account, final Jid with, final Set media) { synchronized (this.rtpSessionProposals) { for (Map.Entry entry : this.rtpSessionProposals.entrySet()) { final RtpSessionProposal proposal = entry.getKey(); final DeviceDiscoveryState state = entry.getValue(); final boolean openProposal = state == DeviceDiscoveryState.DISCOVERED || state == DeviceDiscoveryState.SEARCHING || state == DeviceDiscoveryState.SEARCHING_ACKNOWLEDGED; if (openProposal && proposal.account == account && proposal.with.equals(with.asBareJid()) && proposal.media.equals(media)) { return Optional.of(proposal); } } } return Optional.absent(); } private String hasMatchingRtpSession(final Account account, final Jid with, final Set media) { for (AbstractJingleConnection connection : this.connections.values()) { if (connection instanceof JingleRtpConnection) { final JingleRtpConnection rtpConnection = (JingleRtpConnection) connection; if (rtpConnection.isTerminated()) { continue; } if (rtpConnection.getId().account == account && rtpConnection.getId().with.asBareJid().equals(with.asBareJid()) && rtpConnection.getMedia().equals(media)) { return rtpConnection.getId().sessionId; } } } return null; } private boolean isWithStrangerAndStrangerNotificationsAreOff(final Account account, Jid with) { final boolean notifyForStrangers = mXmppConnectionService.getNotificationService().notificationsFromStrangers(); if (notifyForStrangers) { return false; } final Contact contact = account.getRoster().getContact(with); return !contact.showInContactList(); } ScheduledFuture schedule( final Runnable runnable, final long delay, final TimeUnit timeUnit) { return SCHEDULED_EXECUTOR_SERVICE.schedule(runnable, delay, timeUnit); } void respondWithJingleError( final Account account, final IqPacket original, String jingleCondition, String condition, String conditionType) { final IqPacket response = original.generateResponse(IqPacket.TYPE.ERROR); final Element error = response.addChild("error"); error.setAttribute("type", conditionType); error.addChild(condition, "urn:ietf:params:xml:ns:xmpp-stanzas"); error.addChild(jingleCondition, Namespace.JINGLE_ERRORS); account.getXmppConnection().sendIqPacket(response, null); } public void deliverMessage( final Account account, final Jid to, final Jid from, final Element message, String remoteMsgId, String serverMsgId, long timestamp) { Preconditions.checkArgument(Namespace.JINGLE_MESSAGE.equals(message.getNamespace())); final String sessionId = message.getAttribute("id"); if (sessionId == null) { return; } if ("accept".equals(message.getName()) || "reject".equals(message.getName())) { for (AbstractJingleConnection connection : connections.values()) { if (connection instanceof JingleRtpConnection) { final JingleRtpConnection rtpConnection = (JingleRtpConnection) connection; final AbstractJingleConnection.Id id = connection.getId(); if (id.account == account && id.sessionId.equals(sessionId)) { rtpConnection.deliveryMessage(from, message, serverMsgId, timestamp); return; } } } if ("accept".equals(message.getName())) return; } final boolean fromSelf = from.asBareJid().equals(account.getJid().asBareJid()); final boolean addressedDirectly = to != null && to.equals(account.getJid()); final AbstractJingleConnection.Id id; if (fromSelf) { if (to != null && to.isFullJid()) { id = AbstractJingleConnection.Id.of(account, to, sessionId); } else { return; } } else { id = AbstractJingleConnection.Id.of(account, from, sessionId); } final AbstractJingleConnection existingJingleConnection = connections.get(id); if (existingJingleConnection != null) { if (existingJingleConnection instanceof JingleRtpConnection) { ((JingleRtpConnection) existingJingleConnection) .deliveryMessage(from, message, serverMsgId, timestamp); } else { Log.d( Config.LOGTAG, account.getJid().asBareJid() + ": " + existingJingleConnection.getClass().getName() + " does not support jingle messages"); } return; } if (fromSelf) { if ("proceed".equals(message.getName())) { final Conversation c = mXmppConnectionService.findOrCreateConversation( account, id.with, false, false); final Message previousBusy = c.findRtpSession(sessionId, Message.STATUS_RECEIVED); if (previousBusy != null) { previousBusy.setBody(new RtpSessionStatus(true, 0).toString()); if (serverMsgId != null) { previousBusy.setServerMsgId(serverMsgId); } previousBusy.setTime(timestamp); mXmppConnectionService.updateMessage(previousBusy, true); Log.d( Config.LOGTAG, id.account.getJid().asBareJid() + ": updated previous busy because call got picked up by another device"); return; } } // TODO handle reject for cases where we don’t have carbon copies (normally reject is to // be sent to own bare jid as well) Log.d( Config.LOGTAG, account.getJid().asBareJid() + ": ignore jingle message from self"); return; } if ("propose".equals(message.getName())) { final Propose propose = Propose.upgrade(message); final List descriptions = propose.getDescriptions(); final Collection rtpDescriptions = Collections2.transform( Collections2.filter(descriptions, d -> d instanceof RtpDescription), input -> (RtpDescription) input); if (rtpDescriptions.size() > 0 && rtpDescriptions.size() == descriptions.size() && isUsingClearNet(account)) { final Collection media = Collections2.transform(rtpDescriptions, RtpDescription::getMedia); if (media.contains(Media.UNKNOWN)) { Log.d( Config.LOGTAG, account.getJid().asBareJid() + ": encountered unknown media in session proposal. " + propose); return; } final Optional matchingSessionProposal = findMatchingSessionProposal(account, id.with, ImmutableSet.copyOf(media)); if (matchingSessionProposal.isPresent()) { final String ourSessionId = matchingSessionProposal.get().sessionId; final String theirSessionId = id.sessionId; if (ComparisonChain.start() .compare(ourSessionId, theirSessionId) .compare( account.getJid().toEscapedString(), id.with.toEscapedString()) .result() > 0) { Log.d( Config.LOGTAG, account.getJid().asBareJid() + ": our session lost tie break. automatically accepting their session. winning Session=" + theirSessionId); // TODO a retract for this reason should probably include some indication of // tie break retractSessionProposal(matchingSessionProposal.get()); final JingleRtpConnection rtpConnection = new JingleRtpConnection(this, id, from); this.connections.put(id, rtpConnection); rtpConnection.setProposedMedia(ImmutableSet.copyOf(media)); rtpConnection.deliveryMessage(from, message, serverMsgId, timestamp); } else { Log.d( Config.LOGTAG, account.getJid().asBareJid() + ": our session won tie break. waiting for other party to accept. winningSession=" + ourSessionId); } return; } final boolean stranger = isWithStrangerAndStrangerNotificationsAreOff(account, id.with); if (isBusy() != null || stranger) { writeLogMissedIncoming(account, id.with.asBareJid(), id.sessionId, serverMsgId, timestamp); if (stranger) { Log.d( Config.LOGTAG, id.account.getJid().asBareJid() + ": ignoring call proposal from stranger " + id.with); return; } final int activeDevices = account.activeDevicesWithRtpCapability(); Log.d(Config.LOGTAG, "active devices with rtp capability: " + activeDevices); if (activeDevices == 0) { final MessagePacket reject = mXmppConnectionService .getMessageGenerator() .sessionReject(from, sessionId); mXmppConnectionService.sendMessagePacket(account, reject); } else { Log.d( Config.LOGTAG, id.account.getJid().asBareJid() + ": ignoring proposal because busy on this device but there are other devices"); } } else { final JingleRtpConnection rtpConnection = new JingleRtpConnection(this, id, from); this.connections.put(id, rtpConnection); rtpConnection.setProposedMedia(ImmutableSet.copyOf(media)); rtpConnection.deliveryMessage(from, message, serverMsgId, timestamp); } } else { Log.d( Config.LOGTAG, account.getJid().asBareJid() + ": unable to react to proposed session with " + rtpDescriptions.size() + " rtp descriptions of " + descriptions.size() + " total descriptions"); } } else if (addressedDirectly && "proceed".equals(message.getName())) { synchronized (rtpSessionProposals) { final RtpSessionProposal proposal = getRtpSessionProposal(account, from.asBareJid(), sessionId); if (proposal != null) { rtpSessionProposals.remove(proposal); final JingleRtpConnection rtpConnection = new JingleRtpConnection(this, id, account.getJid()); rtpConnection.setProposedMedia(proposal.media); this.connections.put(id, rtpConnection); rtpConnection.transitionOrThrow(AbstractJingleConnection.State.PROPOSED); rtpConnection.deliveryMessage(from, message, serverMsgId, timestamp); } else { Log.d( Config.LOGTAG, account.getJid().asBareJid() + ": no rtp session proposal found for " + from + " to deliver proceed"); if (remoteMsgId == null) { return; } final MessagePacket errorMessage = new MessagePacket(); errorMessage.setTo(from); errorMessage.setId(remoteMsgId); errorMessage.setType(MessagePacket.TYPE_ERROR); final Element error = errorMessage.addChild("error"); error.setAttribute("code", "404"); error.setAttribute("type", "cancel"); error.addChild("item-not-found", "urn:ietf:params:xml:ns:xmpp-stanzas"); mXmppConnectionService.sendMessagePacket(account, errorMessage); } } } else if (addressedDirectly && "reject".equals(message.getName())) { final RtpSessionProposal proposal = getRtpSessionProposal(account, from.asBareJid(), sessionId); synchronized (rtpSessionProposals) { if (proposal != null && rtpSessionProposals.remove(proposal) != null) { writeLogMissedOutgoing( account, proposal.with, proposal.sessionId, serverMsgId, timestamp); toneManager.transition(RtpEndUserState.DECLINED_OR_BUSY, proposal.media); mXmppConnectionService.notifyJingleRtpConnectionUpdate( account, proposal.with, proposal.sessionId, RtpEndUserState.DECLINED_OR_BUSY); } else { Log.d( Config.LOGTAG, account.getJid().asBareJid() + ": no rtp session proposal found for " + from + " to deliver reject"); } } } else { Log.d( Config.LOGTAG, account.getJid().asBareJid() + ": retrieved out of order jingle message" + message); } } private RtpSessionProposal getRtpSessionProposal( final Account account, Jid from, String sessionId) { for (RtpSessionProposal rtpSessionProposal : rtpSessionProposals.keySet()) { if (rtpSessionProposal.sessionId.equals(sessionId) && rtpSessionProposal.with.equals(from) && rtpSessionProposal.account.getJid().equals(account.getJid())) { return rtpSessionProposal; } } return null; } private void writeLogMissedOutgoing( final Account account, Jid with, final String sessionId, String serverMsgId, long timestamp) { final Conversation conversation = mXmppConnectionService.findOrCreateConversation( account, with.asBareJid(), false, false); final Message message = new Message(conversation, Message.STATUS_SEND, Message.TYPE_RTP_SESSION, sessionId); message.setBody(new RtpSessionStatus(false, 0).toString()); message.setServerMsgId(serverMsgId); message.setTime(timestamp); writeMessage(message); } private void writeLogMissedIncoming( final Account account, Jid with, final String sessionId, String serverMsgId, long timestamp) { final Conversation conversation = mXmppConnectionService.findOrCreateConversation( account, with.asBareJid(), false, false); final Message message = new Message( conversation, Message.STATUS_RECEIVED, Message.TYPE_RTP_SESSION, sessionId); message.setBody(new RtpSessionStatus(false, 0).toString()); message.setServerMsgId(serverMsgId); message.setTime(timestamp); writeMessage(message); } private void writeMessage(final Message message) { final Conversational conversational = message.getConversation(); if (conversational instanceof Conversation) { ((Conversation) conversational).add(message); mXmppConnectionService.databaseBackend.createMessage(message); mXmppConnectionService.updateConversationUi(); } else { throw new IllegalStateException("Somehow the conversation in a message was a stub"); } } public void startJingleFileTransfer(final Message message) { Preconditions.checkArgument( message.isFileOrImage(), "Message is not of type file or image"); final Transferable old = message.getTransferable(); if (old != null) { old.cancel(); } final Account account = message.getConversation().getAccount(); final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(message); final JingleFileTransferConnection connection = new JingleFileTransferConnection(this, id, account.getJid()); mXmppConnectionService.markMessage(message, Message.STATUS_WAITING); this.connections.put(id, connection); connection.init(message); } public Optional getOngoingRtpConnection(final Contact contact) { for (final Map.Entry entry : this.connections.entrySet()) { if (entry.getValue() instanceof JingleRtpConnection) { final AbstractJingleConnection.Id id = entry.getKey(); if (id.account == contact.getAccount() && id.with.asBareJid().equals(contact.getJid().asBareJid())) { return Optional.of(id); } } } synchronized (this.rtpSessionProposals) { for (final Map.Entry entry : this.rtpSessionProposals.entrySet()) { final RtpSessionProposal proposal = entry.getKey(); if (proposal.account == contact.getAccount() && contact.getJid().asBareJid().equals(proposal.with)) { final DeviceDiscoveryState preexistingState = entry.getValue(); if (preexistingState != null && preexistingState != DeviceDiscoveryState.FAILED) { return Optional.of(proposal); } } } } return Optional.absent(); } void finishConnection(final AbstractJingleConnection connection) { this.connections.remove(connection.getId()); } void finishConnectionOrThrow(final AbstractJingleConnection connection) { final AbstractJingleConnection.Id id = connection.getId(); if (this.connections.remove(id) == null) { throw new IllegalStateException( String.format("Unable to finish connection with id=%s", id.toString())); } } public boolean fireJingleRtpConnectionStateUpdates() { boolean firedUpdates = false; for (final AbstractJingleConnection connection : this.connections.values()) { if (connection instanceof JingleRtpConnection) { final JingleRtpConnection jingleRtpConnection = (JingleRtpConnection) connection; if (jingleRtpConnection.isTerminated()) { continue; } jingleRtpConnection.fireStateUpdate(); firedUpdates = true; } } return firedUpdates; } void getPrimaryCandidate( final Account account, final boolean initiator, final OnPrimaryCandidateFound listener) { if (Config.DISABLE_PROXY_LOOKUP) { listener.onPrimaryCandidateFound(false, null); return; } if (!this.primaryCandidates.containsKey(account.getJid().asBareJid())) { final Jid proxy = account.getXmppConnection().findDiscoItemByFeature(Namespace.BYTE_STREAMS); if (proxy != null) { IqPacket iq = new IqPacket(IqPacket.TYPE.GET); iq.setTo(proxy); iq.query(Namespace.BYTE_STREAMS); account.getXmppConnection() .sendIqPacket( iq, new OnIqPacketReceived() { @Override public void onIqPacketReceived( Account account, IqPacket packet) { final Element streamhost = packet.query() .findChild( "streamhost", Namespace.BYTE_STREAMS); final String host = streamhost == null ? null : streamhost.getAttribute("host"); final String port = streamhost == null ? null : streamhost.getAttribute("port"); if (host != null && port != null) { try { JingleCandidate candidate = new JingleCandidate(nextRandomId(), true); candidate.setHost(host); candidate.setPort(Integer.parseInt(port)); candidate.setType(JingleCandidate.TYPE_PROXY); candidate.setJid(proxy); candidate.setPriority( 655360 + (initiator ? 30 : 0)); primaryCandidates.put( account.getJid().asBareJid(), candidate); listener.onPrimaryCandidateFound(true, candidate); } catch (final NumberFormatException e) { listener.onPrimaryCandidateFound(false, null); } } else { listener.onPrimaryCandidateFound(false, null); } } }); } else { listener.onPrimaryCandidateFound(false, null); } } else { listener.onPrimaryCandidateFound( true, this.primaryCandidates.get(account.getJid().asBareJid())); } } public void retractSessionProposal(final Account account, final Jid with) { synchronized (this.rtpSessionProposals) { RtpSessionProposal matchingProposal = null; for (RtpSessionProposal proposal : this.rtpSessionProposals.keySet()) { if (proposal.account == account && with.asBareJid().equals(proposal.with)) { matchingProposal = proposal; break; } } if (matchingProposal != null) { retractSessionProposal(matchingProposal); } } } private void retractSessionProposal(RtpSessionProposal rtpSessionProposal) { final Account account = rtpSessionProposal.account; toneManager.transition(RtpEndUserState.ENDED, rtpSessionProposal.media); Log.d( Config.LOGTAG, account.getJid().asBareJid() + ": retracting rtp session proposal with " + rtpSessionProposal.with); this.rtpSessionProposals.remove(rtpSessionProposal); final MessagePacket messagePacket = mXmppConnectionService.getMessageGenerator().sessionRetract(rtpSessionProposal); writeLogMissedOutgoing( account, rtpSessionProposal.with, rtpSessionProposal.sessionId, null, System.currentTimeMillis()); mXmppConnectionService.sendMessagePacket(account, messagePacket); } public String initializeRtpSession( final Account account, final Jid with, final Set media) { final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(account, with); final JingleRtpConnection rtpConnection = new JingleRtpConnection(this, id, account.getJid()); rtpConnection.setProposedMedia(media); this.connections.put(id, rtpConnection); rtpConnection.sendSessionInitiate(); return id.sessionId; } public String proposeJingleRtpSession(final Account account, final Jid with, final Set media) { synchronized (this.rtpSessionProposals) { for (Map.Entry entry : this.rtpSessionProposals.entrySet()) { RtpSessionProposal proposal = entry.getKey(); if (proposal.account == account && with.asBareJid().equals(proposal.with)) { final DeviceDiscoveryState preexistingState = entry.getValue(); if (preexistingState != null && preexistingState != DeviceDiscoveryState.FAILED) { final RtpEndUserState endUserState = preexistingState.toEndUserState(); toneManager.transition(endUserState, media); mXmppConnectionService.notifyJingleRtpConnectionUpdate( account, with, proposal.sessionId, endUserState ); return proposal.sessionId; } } } String busyCode = isBusy(); if (busyCode != null) { String sessionId = hasMatchingRtpSession(account, with, media); if (sessionId != null) { Log.d(Config.LOGTAG, "ignoring request to propose jingle session because the other party already created one for us: " + sessionId); return sessionId; } throw new IllegalStateException("There is already a running RTP session: " + busyCode); } final RtpSessionProposal proposal = RtpSessionProposal.of(account, with.asBareJid(), media); this.rtpSessionProposals.put(proposal, DeviceDiscoveryState.SEARCHING); mXmppConnectionService.notifyJingleRtpConnectionUpdate( account, proposal.with, proposal.sessionId, RtpEndUserState.FINDING_DEVICE); final MessagePacket messagePacket = mXmppConnectionService.getMessageGenerator().sessionProposal(proposal); mXmppConnectionService.sendMessagePacket(account, messagePacket); return proposal.sessionId; } } public boolean hasMatchingProposal(final Account account, final Jid with) { synchronized (this.rtpSessionProposals) { for (Map.Entry entry : this.rtpSessionProposals.entrySet()) { final RtpSessionProposal proposal = entry.getKey(); if (proposal.account == account && with.asBareJid().equals(proposal.with)) { return true; } } } return false; } public void deliverIbbPacket(Account account, IqPacket packet) { final String sid; final Element payload; if (packet.hasChild("open", Namespace.IBB)) { payload = packet.findChild("open", Namespace.IBB); sid = payload.getAttribute("sid"); } else if (packet.hasChild("data", Namespace.IBB)) { payload = packet.findChild("data", Namespace.IBB); sid = payload.getAttribute("sid"); } else if (packet.hasChild("close", Namespace.IBB)) { payload = packet.findChild("close", Namespace.IBB); sid = payload.getAttribute("sid"); } else { payload = null; sid = null; } if (sid != null) { for (final AbstractJingleConnection connection : this.connections.values()) { if (connection instanceof JingleFileTransferConnection) { final JingleFileTransferConnection fileTransfer = (JingleFileTransferConnection) connection; final JingleTransport transport = fileTransfer.getTransport(); if (transport instanceof JingleInBandTransport) { final JingleInBandTransport inBandTransport = (JingleInBandTransport) transport; if (inBandTransport.matches(account, sid)) { inBandTransport.deliverPayload(packet, payload); } return; } } } } Log.d(Config.LOGTAG, "unable to deliver ibb packet: " + packet.toString()); account.getXmppConnection() .sendIqPacket(packet.generateResponse(IqPacket.TYPE.ERROR), null); } public void notifyRebound(final Account account) { for (final AbstractJingleConnection connection : this.connections.values()) { connection.notifyRebound(); } final XmppConnection xmppConnection = account.getXmppConnection(); if (xmppConnection != null && xmppConnection.getFeatures().sm()) { resendSessionProposals(account); } } public WeakReference findJingleRtpConnection( Account account, Jid with, String sessionId) { final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(account, with, sessionId); final AbstractJingleConnection connection = connections.get(id); if (connection instanceof JingleRtpConnection) { return new WeakReference<>((JingleRtpConnection) connection); } return null; } private void resendSessionProposals(final Account account) { synchronized (this.rtpSessionProposals) { for (final Map.Entry entry : this.rtpSessionProposals.entrySet()) { final RtpSessionProposal proposal = entry.getKey(); if (entry.getValue() == DeviceDiscoveryState.SEARCHING && proposal.account == account) { Log.d( Config.LOGTAG, account.getJid().asBareJid() + ": resending session proposal to " + proposal.with); final MessagePacket messagePacket = mXmppConnectionService.getMessageGenerator().sessionProposal(proposal); mXmppConnectionService.sendMessagePacket(account, messagePacket); } } } } public void updateProposedSessionDiscovered( Account account, Jid from, String sessionId, final DeviceDiscoveryState target) { synchronized (this.rtpSessionProposals) { final RtpSessionProposal sessionProposal = getRtpSessionProposal(account, from.asBareJid(), sessionId); final DeviceDiscoveryState currentState = sessionProposal == null ? null : rtpSessionProposals.get(sessionProposal); if (currentState == null) { Log.d(Config.LOGTAG, "unable to find session proposal for session id " + sessionId); return; } if (currentState == DeviceDiscoveryState.DISCOVERED) { Log.d( Config.LOGTAG, "session proposal already at discovered. not going to fall back"); return; } this.rtpSessionProposals.put(sessionProposal, target); final RtpEndUserState endUserState = target.toEndUserState(); toneManager.transition(endUserState, sessionProposal.media); mXmppConnectionService.notifyJingleRtpConnectionUpdate( account, sessionProposal.with, sessionProposal.sessionId, endUserState); Log.d( Config.LOGTAG, account.getJid().asBareJid() + ": flagging session " + sessionId + " as " + target); } } public void rejectRtpSession(final String sessionId) { for (final AbstractJingleConnection connection : this.connections.values()) { if (connection.getId().sessionId.equals(sessionId)) { if (connection instanceof JingleRtpConnection) { try { ((JingleRtpConnection) connection).rejectCall(); return; } catch (final IllegalStateException e) { Log.w( Config.LOGTAG, "race condition on rejecting call from notification", e); } } } } } public void endRtpSession(final String sessionId) { for (final AbstractJingleConnection connection : this.connections.values()) { if (connection.getId().sessionId.equals(sessionId)) { if (connection instanceof JingleRtpConnection) { ((JingleRtpConnection) connection).endCall(); } } } } public void failProceed(Account account, final Jid with, final String sessionId, final String message) { final AbstractJingleConnection.Id id = AbstractJingleConnection.Id.of(account, with, sessionId); final AbstractJingleConnection existingJingleConnection = connections.get(id); if (existingJingleConnection instanceof JingleRtpConnection) { ((JingleRtpConnection) existingJingleConnection).deliverFailedProceed(message); } } void ensureConnectionIsRegistered(final AbstractJingleConnection connection) { if (connections.containsValue(connection)) { return; } final IllegalStateException e = new IllegalStateException( "JingleConnection has not been registered with connection manager"); Log.e(Config.LOGTAG, "ensureConnectionIsRegistered() failed. Going to throw", e); throw e; } void setTerminalSessionState( AbstractJingleConnection.Id id, final RtpEndUserState state, final Set media) { this.terminatedSessions.put( PersistableSessionId.of(id), new TerminatedRtpSession(state, media)); } public TerminatedRtpSession getTerminalSessionState(final Jid with, final String sessionId) { return this.terminatedSessions.getIfPresent(new PersistableSessionId(with, sessionId)); } private static class PersistableSessionId { private final Jid with; private final String sessionId; private PersistableSessionId(Jid with, String sessionId) { this.with = with; this.sessionId = sessionId; } public static PersistableSessionId of(AbstractJingleConnection.Id id) { return new PersistableSessionId(id.with, id.sessionId); } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; PersistableSessionId that = (PersistableSessionId) o; return Objects.equal(with, that.with) && Objects.equal(sessionId, that.sessionId); } @Override public int hashCode() { return Objects.hashCode(with, sessionId); } } public static class TerminatedRtpSession { public final RtpEndUserState state; public final Set media; TerminatedRtpSession(RtpEndUserState state, Set media) { this.state = state; this.media = media; } } public enum DeviceDiscoveryState { SEARCHING, SEARCHING_ACKNOWLEDGED, DISCOVERED, FAILED; public RtpEndUserState toEndUserState() { switch (this) { case SEARCHING: case SEARCHING_ACKNOWLEDGED: return RtpEndUserState.FINDING_DEVICE; case DISCOVERED: return RtpEndUserState.RINGING; default: return RtpEndUserState.CONNECTIVITY_ERROR; } } } public static class RtpSessionProposal implements OngoingRtpSession { public final Jid with; public final String sessionId; public final Set media; private final Account account; private RtpSessionProposal(Account account, Jid with, String sessionId) { this(account, with, sessionId, Collections.emptySet()); } private RtpSessionProposal(Account account, Jid with, String sessionId, Set media) { this.account = account; this.with = with; this.sessionId = sessionId; this.media = media; } public static RtpSessionProposal of(Account account, Jid with, Set media) { return new RtpSessionProposal(account, with, nextRandomId(), media); } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; RtpSessionProposal proposal = (RtpSessionProposal) o; return Objects.equal(account.getJid(), proposal.account.getJid()) && Objects.equal(with, proposal.with) && Objects.equal(sessionId, proposal.sessionId); } @Override public int hashCode() { return Objects.hashCode(account.getJid(), with, sessionId); } @Override public Account getAccount() { return account; } @Override public Jid getWith() { return with; } @Override public String getSessionId() { return sessionId; } } }