Ejemplo n.º 1
0
  /**
   * Returns default <tt>WebRtcDataStream</tt> if it's ready or <tt>null</tt> otherwise.
   *
   * @return <tt>WebRtcDataStream</tt> if it's ready or <tt>null</tt> otherwise.
   * @throws IOException
   */
  public WebRtcDataStream getDefaultDataStream() throws IOException {
    WebRtcDataStream def;

    synchronized (this) {
      if (sctpSocket == null) {
        def = null;
      } else {
        // Channel that runs on sid 0
        def = channels.get(0);
        if (def == null) {
          def = openChannel(0, 0, 0, 0, "default");
        }
        // Pawel Domas: Must be acknowledged before use
        /*
         * XXX Lyubomir Marinov: We're always sending ordered. According
         * to "WebRTC Data Channel Establishment Protocol", we can start
         * sending messages containing user data after the
         * DATA_CHANNEL_OPEN message has been sent without waiting for
         * the reception of the corresponding DATA_CHANNEL_ACK message.
         */
        //                if (!def.isAcknowledged())
        //                    def = null;
      }
    }
    return def;
  }
Ejemplo n.º 2
0
  /**
   * Remove records telling what entity caps node a contact has.
   *
   * @param contact the contact
   */
  public void removeContactCapsNode(Contact contact) {
    Caps caps = null;
    String lastRemovedJid = null;

    Iterator<String> iter = userCaps.keySet().iterator();
    while (iter.hasNext()) {
      String jid = iter.next();

      if (StringUtils.parseBareAddress(jid).equals(contact.getAddress())) {
        caps = userCaps.get(jid);
        lastRemovedJid = jid;
        iter.remove();
      }
    }

    // fire only for the last one, at the end the event out
    // of the protocol will be one and for the contact
    if (caps != null) {
      UserCapsNodeListener[] listeners;
      synchronized (userCapsNodeListeners) {
        listeners = userCapsNodeListeners.toArray(NO_USER_CAPS_NODE_LISTENERS);
      }
      if (listeners.length != 0) {
        String nodeVer = caps.getNodeVer();

        for (UserCapsNodeListener listener : listeners)
          listener.userCapsNodeRemoved(lastRemovedJid, nodeVer, false);
      }
    }
  }
Ejemplo n.º 3
0
  /**
   * Add a record telling what entity caps node a user has.
   *
   * @param user the user (Full JID)
   * @param node the node (of the caps packet extension)
   * @param hash the hashing algorithm used to calculate <tt>ver</tt>
   * @param ver the version (of the caps packet extension)
   * @param ext the ext (of the caps packet extension)
   * @param online indicates if the user is online
   */
  private void addUserCapsNode(
      String user, String node, String hash, String ver, String ext, boolean online) {
    if ((user != null) && (node != null) && (hash != null) && (ver != null)) {
      Caps caps = userCaps.get(user);

      if ((caps == null)
          || !caps.node.equals(node)
          || !caps.hash.equals(hash)
          || !caps.ver.equals(ver)) {
        caps = new Caps(node, hash, ver, ext);

        userCaps.put(user, caps);
      } else return;

      // Fire userCapsNodeAdded.
      UserCapsNodeListener[] listeners;

      synchronized (userCapsNodeListeners) {
        listeners = userCapsNodeListeners.toArray(NO_USER_CAPS_NODE_LISTENERS);
      }
      if (listeners.length != 0) {
        String nodeVer = caps.getNodeVer();

        for (UserCapsNodeListener listener : listeners)
          listener.userCapsNodeAdded(user, nodeVer, online);
      }
    }
  }
Ejemplo n.º 4
0
  /**
   * Returns {@link JitsiMeetConference} for given MUC {@code roomName} or {@code null} if no
   * conference has been allocated yet.
   *
   * @param roomName the name of MUC room for which we want get the {@code JitsiMeetConference}
   *     instance.
   * @return the {@code JitsiMeetConference} for the specified {@code roomName} or {@code null} if
   *     no conference has been allocated yet
   */
  public JitsiMeetConference getConference(String roomName) {
    roomName = roomName.toLowerCase();

    // Other public methods which read from and/or write to the field
    // conferences are sychronized (e.g. conferenceEnded, conferenceRequest)
    // so synchronization is necessary here as well.
    synchronized (this) {
      return conferences.get(roomName);
    }
  }
Ejemplo n.º 5
0
  /**
   * Allocates new focus for given MUC room.
   *
   * @param room the name of MUC room for which new conference has to be allocated.
   * @param properties configuration properties map included in the request.
   * @return <tt>true</tt> if conference focus is in the room and ready to handle session
   *     participants.
   * @throws Exception if for any reason we have failed to create the conference
   */
  public synchronized boolean conferenceRequest(String room, Map<String, String> properties)
      throws Exception {
    if (StringUtils.isNullOrEmpty(room)) return false;

    if (shutdownInProgress && !conferences.containsKey(room)) return false;

    if (!conferences.containsKey(room)) {
      createConference(room, properties);
    }

    JitsiMeetConference conference = conferences.get(room);

    return conference.isInTheRoom();
  }
  /**
   * Initializes and creates an account corresponding to the specified accountProperties.
   *
   * @param accountProperties a set of protocol (or implementation) specific properties defining the
   *     new account.
   * @return the AccountID of the newly created account
   */
  public AccountID createAccount(Map<String, String> accountProperties) {
    BundleContext bundleContext = getBundleContext();
    if (bundleContext == null)
      throw new NullPointerException("The specified BundleContext was null");

    if (accountProperties == null)
      throw new NullPointerException("The specified property map was null");

    String userID = accountProperties.get(USER_ID);
    if (userID == null)
      throw new NullPointerException("The account properties contained no user id.");

    String protocolName = getProtocolName();
    if (!accountProperties.containsKey(PROTOCOL)) accountProperties.put(PROTOCOL, protocolName);

    return createAccountID(userID, accountProperties);
  }
  /**
   * Returns, the <tt>TransportManager</tt> instance for the channel-bundle with ID
   * <tt>channelBundleId</tt>. If no instance exists and <tt>create</tt> is <tt>true</tt>, one will
   * be created.
   *
   * @param channelBundleId the ID of the channel-bundle for which to return the
   *     <tt>TransportManager</tt>.
   * @param create whether to create a new instance, if one doesn't exist.
   * @return the <tt>TransportManager</tt> instance for the channel-bundle with ID
   *     <tt>channelBundleId</tt>.
   */
  IceUdpTransportManager getTransportManager(String channelBundleId, boolean create) {
    IceUdpTransportManager transportManager;

    synchronized (transportManagers) {
      transportManager = transportManagers.get(channelBundleId);
      if (transportManager == null && create && !isExpired()) {
        try {
          // FIXME: the initiator is hard-coded
          // We assume rtcp-mux when bundle is used, so we make only
          // one component.
          transportManager = new IceUdpTransportManager(this, true, 1);
        } catch (IOException ioe) {
          throw new UndeclaredThrowableException(ioe);
        }
        transportManagers.put(channelBundleId, transportManager);
      }
    }

    return transportManager;
  }
Ejemplo n.º 8
0
  /**
   * {@inheritDoc}
   *
   * <p>SCTP input data callback.
   */
  @Override
  public void onSctpPacket(
      byte[] data, int sid, int ssn, int tsn, long ppid, int context, int flags) {
    if (ppid == WEB_RTC_PPID_CTRL) {
      // Channel control PPID
      try {
        onCtrlPacket(data, sid);
      } catch (IOException e) {
        logger.error("IOException when processing ctrl packet", e);
      }
    } else if (ppid == WEB_RTC_PPID_STRING || ppid == WEB_RTC_PPID_BIN) {
      WebRtcDataStream channel;

      synchronized (this) {
        channel = channels.get(sid);
      }

      if (channel == null) {
        logger.error("No channel found for sid: " + sid);
        return;
      }
      if (ppid == WEB_RTC_PPID_STRING) {
        // WebRTC String
        String str;
        String charsetName = "UTF-8";

        try {
          str = new String(data, charsetName);
        } catch (UnsupportedEncodingException uee) {
          logger.error("Unsupported charset encoding/name " + charsetName, uee);
          str = null;
        }
        channel.onStringMsg(str);
      } else {
        // WebRTC Binary
        channel.onBinaryMsg(data);
      }
    } else {
      logger.warn("Got message on unsupported PPID: " + ppid);
    }
  }
Ejemplo n.º 9
0
  /**
   * Handles control packet.
   *
   * @param data raw packet data that arrived on control PPID.
   * @param sid SCTP stream id on which the data has arrived.
   */
  private synchronized void onCtrlPacket(byte[] data, int sid) throws IOException {
    ByteBuffer buffer = ByteBuffer.wrap(data);
    int messageType = /* 1 byte unsigned integer */ 0xFF & buffer.get();

    if (messageType == MSG_CHANNEL_ACK) {
      if (logger.isDebugEnabled()) {
        logger.debug(getEndpoint().getID() + " ACK received SID: " + sid);
      }
      // Open channel ACK
      WebRtcDataStream channel = channels.get(sid);
      if (channel != null) {
        // Ack check prevents from firing multiple notifications
        // if we get more than one ACKs (by mistake/bug).
        if (!channel.isAcknowledged()) {
          channel.ackReceived();
          notifyChannelOpened(channel);
        } else {
          logger.warn("Redundant ACK received for SID: " + sid);
        }
      } else {
        logger.error("No channel exists on sid: " + sid);
      }
    } else if (messageType == MSG_OPEN_CHANNEL) {
      int channelType = /* 1 byte unsigned integer */ 0xFF & buffer.get();
      int priority = /* 2 bytes unsigned integer */ 0xFFFF & buffer.getShort();
      long reliability = /* 4 bytes unsigned integer */ 0xFFFFFFFFL & buffer.getInt();
      int labelLength = /* 2 bytes unsigned integer */ 0xFFFF & buffer.getShort();
      int protocolLength = /* 2 bytes unsigned integer */ 0xFFFF & buffer.getShort();
      String label;
      String protocol;

      if (labelLength == 0) {
        label = "";
      } else {
        byte[] labelBytes = new byte[labelLength];

        buffer.get(labelBytes);
        label = new String(labelBytes, "UTF-8");
      }
      if (protocolLength == 0) {
        protocol = "";
      } else {
        byte[] protocolBytes = new byte[protocolLength];

        buffer.get(protocolBytes);
        protocol = new String(protocolBytes, "UTF-8");
      }

      if (logger.isDebugEnabled()) {
        logger.debug(
            "!!! "
                + getEndpoint().getID()
                + " data channel open request on SID: "
                + sid
                + " type: "
                + channelType
                + " prio: "
                + priority
                + " reliab: "
                + reliability
                + " label: "
                + label
                + " proto: "
                + protocol);
      }

      if (channels.containsKey(sid)) {
        logger.error("Channel on sid: " + sid + " already exists");
      }

      WebRtcDataStream newChannel = new WebRtcDataStream(sctpSocket, sid, label, true);
      channels.put(sid, newChannel);

      sendOpenChannelAck(sid);

      notifyChannelOpened(newChannel);
    } else {
      logger.error("Unexpected ctrl msg type: " + messageType);
    }
  }
Ejemplo n.º 10
0
 /**
  * Returns {@link JitsiMeetConference} for given MUC <tt>roomName</tt> or <tt>null</tt> if no
  * conference has been allocated yet.
  *
  * @param roomName the name of MUC room for which we want get the {@link JitsiMeetConference}
  *     instance.
  */
 public JitsiMeetConference getConference(String roomName) {
   return conferences.get(roomName);
 }
Ejemplo n.º 11
0
  /**
   * Retrieve DiscoverInfo for a specific node.
   *
   * @param caps the <tt>Caps</tt> i.e. the node, the hash and the ver
   * @return The corresponding DiscoverInfo or null if none is known.
   */
  public static DiscoverInfo getDiscoverInfoByCaps(Caps caps) {
    synchronized (caps2discoverInfo) {
      DiscoverInfo discoverInfo = caps2discoverInfo.get(caps);

      /*
       * If we don't have the discoverInfo in the runtime cache yet, we
       * may have it remembered in a previous application instance.
       */
      if (discoverInfo == null) {
        ConfigurationService configurationService = getConfigService();
        String capsPropertyName = getCapsPropertyName(caps);
        String xml = configurationService.getString(capsPropertyName);

        if ((xml != null) && (xml.length() != 0)) {
          IQProvider discoverInfoProvider =
              (IQProvider)
                  ProviderManager.getInstance()
                      .getIQProvider("query", "http://jabber.org/protocol/disco#info");

          if (discoverInfoProvider != null) {
            XmlPullParser parser = new MXParser();

            try {
              parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
              parser.setInput(new StringReader(xml));
              // Start the parser.
              parser.next();
            } catch (XmlPullParserException xppex) {
              parser = null;
            } catch (IOException ioex) {
              parser = null;
            }

            if (parser != null) {
              try {
                discoverInfo = (DiscoverInfo) discoverInfoProvider.parseIQ(parser);
              } catch (Exception ex) {
              }

              if (discoverInfo != null) {
                if (caps.isValid(discoverInfo)) caps2discoverInfo.put(caps, discoverInfo);
                else {
                  logger.error(
                      "Invalid DiscoverInfo for " + caps.getNodeVer() + ": " + discoverInfo);
                  /*
                   * The discoverInfo doesn't seem valid
                   * according to the caps which means that we
                   * must have stored invalid information.
                   * Delete the invalid information in order
                   * to not try to validate it again.
                   */
                  configurationService.removeProperty(capsPropertyName);
                }
              }
            }
          }
        }
      }
      return discoverInfo;
    }
  }
Ejemplo n.º 12
0
  /**
   * Get the discover info given a user name. The discover info is returned if the user has a
   * node#ver associated with it and the node#ver has a discover info associated with it.
   *
   * @param user user name (Full JID)
   * @return the discovered info
   */
  public DiscoverInfo getDiscoverInfoByUser(String user) {
    Caps caps = userCaps.get(user);

    return (caps == null) ? null : getDiscoverInfoByCaps(caps);
  }
Ejemplo n.º 13
0
 /**
  * Gets the <tt>Caps</tt> i.e. the node, the hash and the ver of a user.
  *
  * @param user the user (Full JID)
  * @return the <tt>Caps</tt> i.e. the node, the hash and the ver of <tt>user</tt>
  */
 public Caps getCapsByUser(String user) {
   return userCaps.get(user);
 }