Examples with Hop javax.sip.address.Hop used on opensource projects

Example 1 with Hop

use of javax.sip.address.Hop in project XobotOS by xamarin.

the class SipProviderImpl method getNewClientTransaction.

/*
     * (non-Javadoc)
     *
     * @see javax.sip.SipProvider#getNewClientTransaction(javax.sip.message.Request)
     */
public ClientTransaction getNewClientTransaction(Request request) throws TransactionUnavailableException {
    if (request == null)
        throw new NullPointerException("null request");
    if (!sipStack.isAlive())
        throw new TransactionUnavailableException("Stack is stopped");
    SIPRequest sipRequest = (SIPRequest) request;
    if (sipRequest.getTransaction() != null)
        throw new TransactionUnavailableException("Transaction already assigned to request");
    if (sipRequest.getMethod().equals(Request.ACK)) {
        throw new TransactionUnavailableException("Cannot create client transaction for  " + Request.ACK);
    }
    // sloppy
    if (sipRequest.getTopmostVia() == null) {
        ListeningPointImpl lp = (ListeningPointImpl) this.getListeningPoint("udp");
        Via via = lp.getViaHeader();
        request.setHeader(via);
    }
    // Give the request a quick check to see if all headers are assigned.
    try {
        sipRequest.checkHeaders();
    } catch (ParseException ex) {
        throw new TransactionUnavailableException(ex.getMessage(), ex);
    }
    /*
         * User decided to give us his own via header branch. Lets see if it
         * results in a clash. If so reject the request.
         */
    if (sipRequest.getTopmostVia().getBranch() != null && sipRequest.getTopmostVia().getBranch().startsWith(SIPConstants.BRANCH_MAGIC_COOKIE) && sipStack.findTransaction((SIPRequest) request, false) != null) {
        throw new TransactionUnavailableException("Transaction already exists!");
    }
    if (request.getMethod().equalsIgnoreCase(Request.CANCEL)) {
        SIPClientTransaction ct = (SIPClientTransaction) sipStack.findCancelTransaction((SIPRequest) request, false);
        if (ct != null) {
            ClientTransaction retval = sipStack.createClientTransaction((SIPRequest) request, ct.getMessageChannel());
            ((SIPTransaction) retval).addEventListener(this);
            sipStack.addTransaction((SIPClientTransaction) retval);
            if (ct.getDialog() != null) {
                ((SIPClientTransaction) retval).setDialog((SIPDialog) ct.getDialog(), sipRequest.getDialogId(false));
            }
            return retval;
        }
    }
    if (sipStack.isLoggingEnabled())
        sipStack.getStackLogger().logDebug("could not find existing transaction for " + ((SIPRequest) request).getFirstLine() + " creating a new one ");
    // Could not find a dialog or the route is not set in dialog.
    Hop hop = null;
    try {
        hop = sipStack.getNextHop((SIPRequest) request);
        if (hop == null)
            throw new TransactionUnavailableException("Cannot resolve next hop -- transaction unavailable");
    } catch (SipException ex) {
        throw new TransactionUnavailableException("Cannot resolve next hop -- transaction unavailable", ex);
    }
    String transport = hop.getTransport();
    ListeningPointImpl listeningPoint = (ListeningPointImpl) this.getListeningPoint(transport);
    String dialogId = sipRequest.getDialogId(false);
    SIPDialog dialog = sipStack.getDialog(dialogId);
    if (dialog != null && dialog.getState() == DialogState.TERMINATED) {
        // throw new TransactionUnavailableException
        // ("Found a terminated dialog -- possible re-use of old tag
        // parameters");
        sipStack.removeDialog(dialog);
    }
    try {
        // Set the brannch id before you ask for a tx.
        // If the user has set his own branch Id and the
        // branch id starts with a valid prefix, then take it.
        // otherwise, generate one. If branch ID checking has 
        // been requested, set the branch ID.
        String branchId = null;
        if (sipRequest.getTopmostVia().getBranch() == null || !sipRequest.getTopmostVia().getBranch().startsWith(SIPConstants.BRANCH_MAGIC_COOKIE) || sipStack.checkBranchId()) {
            branchId = Utils.getInstance().generateBranchId();
            sipRequest.getTopmostVia().setBranch(branchId);
        }
        Via topmostVia = sipRequest.getTopmostVia();
        //set port and transport if user hasn't already done this.
        if (topmostVia.getTransport() == null)
            topmostVia.setTransport(transport);
        if (topmostVia.getPort() == -1)
            topmostVia.setPort(listeningPoint.getPort());
        branchId = sipRequest.getTopmostVia().getBranch();
        SIPClientTransaction ct = (SIPClientTransaction) sipStack.createMessageChannel(sipRequest, listeningPoint.getMessageProcessor(), hop);
        if (ct == null)
            throw new TransactionUnavailableException("Cound not create tx");
        ct.setNextHop(hop);
        ct.setOriginalRequest(sipRequest);
        ct.setBranch(branchId);
        // if the stack supports dialogs then
        if (sipStack.isDialogCreated(request.getMethod())) {
            // (but noticed by Brad Templeton)
            if (dialog != null)
                ct.setDialog(dialog, sipRequest.getDialogId(false));
            else if (this.isAutomaticDialogSupportEnabled()) {
                SIPDialog sipDialog = sipStack.createDialog(ct);
                ct.setDialog(sipDialog, sipRequest.getDialogId(false));
            }
        } else {
            if (dialog != null) {
                ct.setDialog(dialog, sipRequest.getDialogId(false));
            }
        }
        // The provider is the event listener for all transactions.
        ct.addEventListener(this);
        return (ClientTransaction) ct;
    } catch (IOException ex) {
        throw new TransactionUnavailableException("Could not resolve next hop or listening point unavailable! ", ex);
    } catch (java.text.ParseException ex) {
        InternalErrorHandler.handleException(ex);
        throw new TransactionUnavailableException("Unexpected Exception FIXME! ", ex);
    } catch (InvalidArgumentException ex) {
        InternalErrorHandler.handleException(ex);
        throw new TransactionUnavailableException("Unexpected Exception FIXME! ", ex);
    }
}

Example 2 with Hop

use of javax.sip.address.Hop in project XobotOS by xamarin.

the class SipProviderImpl method sendResponse.

/*
     * (non-Javadoc)
     *
     * @see javax.sip.SipProvider#sendResponse(javax.sip.message.Response)
     */
public void sendResponse(Response response) throws SipException {
    if (!sipStack.isAlive())
        throw new SipException("Stack is stopped");
    SIPResponse sipResponse = (SIPResponse) response;
    Via via = sipResponse.getTopmostVia();
    if (via == null)
        throw new SipException("No via header in response!");
    SIPServerTransaction st = (SIPServerTransaction) sipStack.findTransaction((SIPMessage) response, true);
    if (st != null && st.getState() != TransactionState.TERMINATED && this.isAutomaticDialogSupportEnabled()) {
        throw new SipException("Transaction exists -- cannot send response statelessly");
    }
    String transport = via.getTransport();
    // check to see if Via has "received paramaeter". If so
    // set the host to the via parameter. Else set it to the
    // Via host.
    String host = via.getReceived();
    if (host == null)
        host = via.getHost();
    // Symmetric nat support
    int port = via.getRPort();
    if (port == -1) {
        port = via.getPort();
        if (port == -1) {
            if (transport.equalsIgnoreCase("TLS"))
                port = 5061;
            else
                port = 5060;
        }
    }
    // for correct management of IPv6 addresses.
    if (host.indexOf(":") > 0)
        if (host.indexOf("[") < 0)
            host = "[" + host + "]";
    Hop hop = sipStack.getAddressResolver().resolveAddress(new HopImpl(host, port, transport));
    try {
        ListeningPointImpl listeningPoint = (ListeningPointImpl) this.getListeningPoint(transport);
        if (listeningPoint == null)
            throw new SipException("whoopsa daisy! no listening point found for transport " + transport);
        MessageChannel messageChannel = sipStack.createRawMessageChannel(this.getListeningPoint(hop.getTransport()).getIPAddress(), listeningPoint.port, hop);
        messageChannel.sendMessage(sipResponse);
    } catch (IOException ex) {
        throw new SipException(ex.getMessage());
    }
}

Example 3 with Hop

use of javax.sip.address.Hop in project XobotOS by xamarin.

the class UDPMessageChannel method processIncomingDataPacket.

/**
     * Process an incoming datagram
     *
     * @param packet
     *            is the incoming datagram packet.
     */
private void processIncomingDataPacket(DatagramPacket packet) throws Exception {
    this.peerAddress = packet.getAddress();
    int packetLength = packet.getLength();
    // Read bytes and put it in a eueue.
    byte[] bytes = packet.getData();
    byte[] msgBytes = new byte[packetLength];
    System.arraycopy(bytes, 0, msgBytes, 0, packetLength);
    // Do debug logging.
    if (sipStack.isLoggingEnabled()) {
        this.sipStack.getStackLogger().logDebug("UDPMessageChannel: processIncomingDataPacket : peerAddress = " + peerAddress.getHostAddress() + "/" + packet.getPort() + " Length = " + packetLength);
    }
    SIPMessage sipMessage = null;
    try {
        this.receptionTime = System.currentTimeMillis();
        sipMessage = myParser.parseSIPMessage(msgBytes);
        myParser = null;
    } catch (ParseException ex) {
        // let go of the parser reference.
        myParser = null;
        if (sipStack.isLoggingEnabled()) {
            this.sipStack.getStackLogger().logDebug("Rejecting message !  " + new String(msgBytes));
            this.sipStack.getStackLogger().logDebug("error message " + ex.getMessage());
            this.sipStack.getStackLogger().logException(ex);
        }
        // JvB: send a 400 response for requests (except ACK)
        // Currently only UDP, @todo also other transports
        String msgString = new String(msgBytes, 0, packetLength);
        if (!msgString.startsWith("SIP/") && !msgString.startsWith("ACK ")) {
            String badReqRes = createBadReqRes(msgString, ex);
            if (badReqRes != null) {
                if (sipStack.isLoggingEnabled()) {
                    sipStack.getStackLogger().logDebug("Sending automatic 400 Bad Request:");
                    sipStack.getStackLogger().logDebug(badReqRes);
                }
                try {
                    this.sendMessage(badReqRes.getBytes(), peerAddress, packet.getPort(), "UDP", false);
                } catch (IOException e) {
                    this.sipStack.getStackLogger().logException(e);
                }
            } else {
                if (sipStack.isLoggingEnabled()) {
                    sipStack.getStackLogger().logDebug("Could not formulate automatic 400 Bad Request");
                }
            }
        }
        return;
    }
    if (sipMessage == null) {
        if (sipStack.isLoggingEnabled()) {
            this.sipStack.getStackLogger().logDebug("Rejecting message !  + Null message parsed.");
        }
        if (pingBackRecord.get(packet.getAddress().getHostAddress() + ":" + packet.getPort()) == null) {
            byte[] retval = "\r\n\r\n".getBytes();
            DatagramPacket keepalive = new DatagramPacket(retval, 0, retval.length, packet.getAddress(), packet.getPort());
            ((UDPMessageProcessor) this.messageProcessor).sock.send(keepalive);
            this.sipStack.getTimer().schedule(new PingBackTimerTask(packet.getAddress().getHostAddress(), packet.getPort()), 1000);
        }
        return;
    }
    ViaList viaList = sipMessage.getViaHeaders();
    // Check for the required headers.
    if (sipMessage.getFrom() == null || sipMessage.getTo() == null || sipMessage.getCallId() == null || sipMessage.getCSeq() == null || sipMessage.getViaHeaders() == null) {
        String badmsg = new String(msgBytes);
        if (sipStack.isLoggingEnabled()) {
            this.sipStack.getStackLogger().logError("bad message " + badmsg);
            this.sipStack.getStackLogger().logError(">>> Dropped Bad Msg " + "From = " + sipMessage.getFrom() + "To = " + sipMessage.getTo() + "CallId = " + sipMessage.getCallId() + "CSeq = " + sipMessage.getCSeq() + "Via = " + sipMessage.getViaHeaders());
        }
        return;
    }
    // For response, just get the port from the packet.
    if (sipMessage instanceof SIPRequest) {
        Via v = (Via) viaList.getFirst();
        Hop hop = sipStack.addressResolver.resolveAddress(v.getHop());
        this.peerPort = hop.getPort();
        this.peerProtocol = v.getTransport();
        this.peerPacketSourceAddress = packet.getAddress();
        this.peerPacketSourcePort = packet.getPort();
        try {
            this.peerAddress = packet.getAddress();
            // Check to see if the received parameter matches
            // the peer address and tag it appropriately.
            boolean hasRPort = v.hasParameter(Via.RPORT);
            if (hasRPort || !hop.getHost().equals(this.peerAddress.getHostAddress())) {
                v.setParameter(Via.RECEIVED, this.peerAddress.getHostAddress());
            }
            if (hasRPort) {
                v.setParameter(Via.RPORT, Integer.toString(this.peerPacketSourcePort));
            }
        } catch (java.text.ParseException ex1) {
            InternalErrorHandler.handleException(ex1);
        }
    } else {
        this.peerPacketSourceAddress = packet.getAddress();
        this.peerPacketSourcePort = packet.getPort();
        this.peerAddress = packet.getAddress();
        this.peerPort = packet.getPort();
        this.peerProtocol = ((Via) viaList.getFirst()).getTransport();
    }
    this.processMessage(sipMessage);
}

Example 4 with Hop

use of javax.sip.address.Hop in project XobotOS by xamarin.

the class TCPMessageChannel method processMessage.

/**
     * Gets invoked by the parser as a callback on successful message parsing (i.e. no parser
     * errors).
     * 
     * @param sipMessage Mesage to process (this calls the application for processing the
     *        message).
     */
public void processMessage(SIPMessage sipMessage) throws Exception {
    try {
        if (sipMessage.getFrom() == null || // == null ||
        sipMessage.getTo() == null || sipMessage.getCallId() == null || sipMessage.getCSeq() == null || sipMessage.getViaHeaders() == null) {
            String badmsg = sipMessage.encode();
            if (sipStack.isLoggingEnabled()) {
                sipStack.getStackLogger().logDebug(">>> Dropped Bad Msg");
                sipStack.getStackLogger().logDebug(badmsg);
            }
            return;
        }
        ViaList viaList = sipMessage.getViaHeaders();
        // message.
        if (sipMessage instanceof SIPRequest) {
            Via v = (Via) viaList.getFirst();
            Hop hop = sipStack.addressResolver.resolveAddress(v.getHop());
            this.peerProtocol = v.getTransport();
            try {
                this.peerAddress = mySock.getInetAddress();
                // JvB: if sender added 'rport', must always set received
                if (v.hasParameter(Via.RPORT) || !hop.getHost().equals(this.peerAddress.getHostAddress())) {
                    v.setParameter(Via.RECEIVED, this.peerAddress.getHostAddress());
                }
                // @@@ hagai
                // JvB: technically, may only do this when Via already
                // contains
                // rport
                v.setParameter(Via.RPORT, Integer.toString(this.peerPort));
            } catch (java.text.ParseException ex) {
                InternalErrorHandler.handleException(ex, sipStack.getStackLogger());
            }
            // Use this for outgoing messages as well.
            if (!this.isCached) {
                ((TCPMessageProcessor) this.messageProcessor).cacheMessageChannel(this);
                this.isCached = true;
                int remotePort = ((java.net.InetSocketAddress) mySock.getRemoteSocketAddress()).getPort();
                String key = IOHandler.makeKey(mySock.getInetAddress(), remotePort);
                sipStack.ioHandler.putSocket(key, mySock);
            }
        }
        // Foreach part of the request header, fetch it and process it
        long receptionTime = System.currentTimeMillis();
        if (sipMessage instanceof SIPRequest) {
            // This is a request - process the request.
            SIPRequest sipRequest = (SIPRequest) sipMessage;
            if (sipStack.isLoggingEnabled()) {
                sipStack.getStackLogger().logDebug("----Processing Message---");
            }
            // if it is too long.
            if (this.sipStack.getStackLogger().isLoggingEnabled(ServerLogger.TRACE_MESSAGES)) {
                sipStack.serverLogger.logMessage(sipMessage, this.getPeerHostPort().toString(), this.getMessageProcessor().getIpAddress().getHostAddress() + ":" + this.getMessageProcessor().getPort(), false, receptionTime);
            }
            if (sipStack.getMaxMessageSize() > 0 && sipRequest.getSize() + (sipRequest.getContentLength() == null ? 0 : sipRequest.getContentLength().getContentLength()) > sipStack.getMaxMessageSize()) {
                SIPResponse sipResponse = sipRequest.createResponse(SIPResponse.MESSAGE_TOO_LARGE);
                byte[] resp = sipResponse.encodeAsBytes(this.getTransport());
                this.sendMessage(resp, false);
                throw new Exception("Message size exceeded");
            }
            ServerRequestInterface sipServerRequest = sipStack.newSIPServerRequest(sipRequest, this);
            if (sipServerRequest != null) {
                try {
                    sipServerRequest.processRequest(sipRequest, this);
                } finally {
                    if (sipServerRequest instanceof SIPTransaction) {
                        SIPServerTransaction sipServerTx = (SIPServerTransaction) sipServerRequest;
                        if (!sipServerTx.passToListener())
                            ((SIPTransaction) sipServerRequest).releaseSem();
                    }
                }
            } else {
                if (sipStack.isLoggingEnabled())
                    this.sipStack.getStackLogger().logWarning("Dropping request -- could not acquire semaphore in 10 sec");
            }
        } else {
            SIPResponse sipResponse = (SIPResponse) sipMessage;
            // sipResponse.getTo().removeParameter("tag");
            try {
                sipResponse.checkHeaders();
            } catch (ParseException ex) {
                if (sipStack.isLoggingEnabled())
                    sipStack.getStackLogger().logError("Dropping Badly formatted response message >>> " + sipResponse);
                return;
            }
            // If it is too large dump it silently.
            if (sipStack.getMaxMessageSize() > 0 && sipResponse.getSize() + (sipResponse.getContentLength() == null ? 0 : sipResponse.getContentLength().getContentLength()) > sipStack.getMaxMessageSize()) {
                if (sipStack.isLoggingEnabled())
                    this.sipStack.getStackLogger().logDebug("Message size exceeded");
                return;
            }
            ServerResponseInterface sipServerResponse = sipStack.newSIPServerResponse(sipResponse, this);
            if (sipServerResponse != null) {
                try {
                    if (sipServerResponse instanceof SIPClientTransaction && !((SIPClientTransaction) sipServerResponse).checkFromTag(sipResponse)) {
                        if (sipStack.isLoggingEnabled())
                            sipStack.getStackLogger().logError("Dropping response message with invalid tag >>> " + sipResponse);
                        return;
                    }
                    sipServerResponse.processResponse(sipResponse, this);
                } finally {
                    if (sipServerResponse instanceof SIPTransaction && !((SIPTransaction) sipServerResponse).passToListener())
                        ((SIPTransaction) sipServerResponse).releaseSem();
                }
            } else {
                sipStack.getStackLogger().logWarning("Application is blocked -- could not acquire semaphore -- dropping response");
            }
        }
    } finally {
    }
}

Example 5 with Hop

use of javax.sip.address.Hop in project XobotOS by xamarin.

the class SIPDialog method sendAck.

/**
     * Sends ACK Request to the remote party of this Dialogue.
     * 
     * 
     * @param request the new ACK Request message to send.
     * @param throwIOExceptionAsSipException - throws SipException if IOEx encountered. Otherwise,
     *        no exception is propagated.
     * @param releaseAckSem - release ack semaphore.
     * @throws SipException if implementation cannot send the ACK Request for any other reason
     * 
     */
private void sendAck(Request request, boolean throwIOExceptionAsSipException) throws SipException {
    SIPRequest ackRequest = (SIPRequest) request;
    if (sipStack.isLoggingEnabled())
        sipStack.getStackLogger().logDebug("sendAck" + this);
    if (!ackRequest.getMethod().equals(Request.ACK))
        throw new SipException("Bad request method -- should be ACK");
    if (this.getState() == null || this.getState().getValue() == EARLY_STATE) {
        if (sipStack.isLoggingEnabled()) {
            sipStack.getStackLogger().logError("Bad Dialog State for " + this + " dialogID = " + this.getDialogId());
        }
        throw new SipException("Bad dialog state " + this.getState());
    }
    if (!this.getCallId().getCallId().equals(((SIPRequest) request).getCallId().getCallId())) {
        if (sipStack.isLoggingEnabled()) {
            sipStack.getStackLogger().logError("CallID " + this.getCallId());
            sipStack.getStackLogger().logError("RequestCallID = " + ackRequest.getCallId().getCallId());
            sipStack.getStackLogger().logError("dialog =  " + this);
        }
        throw new SipException("Bad call ID in request");
    }
    try {
        if (sipStack.isLoggingEnabled()) {
            sipStack.getStackLogger().logDebug("setting from tag For outgoing ACK= " + this.getLocalTag());
            sipStack.getStackLogger().logDebug("setting To tag for outgoing ACK = " + this.getRemoteTag());
            sipStack.getStackLogger().logDebug("ack = " + ackRequest);
        }
        if (this.getLocalTag() != null)
            ackRequest.getFrom().setTag(this.getLocalTag());
        if (this.getRemoteTag() != null)
            ackRequest.getTo().setTag(this.getRemoteTag());
    } catch (ParseException ex) {
        throw new SipException(ex.getMessage());
    }
    Hop hop = sipStack.getNextHop(ackRequest);
    // Hop hop = defaultRouter.getNextHop(ackRequest);
    if (hop == null)
        throw new SipException("No route!");
    try {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logDebug("hop = " + hop);
        ListeningPointImpl lp = (ListeningPointImpl) this.sipProvider.getListeningPoint(hop.getTransport());
        if (lp == null)
            throw new SipException("No listening point for this provider registered at " + hop);
        InetAddress inetAddress = InetAddress.getByName(hop.getHost());
        MessageChannel messageChannel = lp.getMessageProcessor().createMessageChannel(inetAddress, hop.getPort());
        boolean releaseAckSem = false;
        long cseqNo = ((SIPRequest) request).getCSeq().getSeqNumber();
        if (!this.isAckSent(cseqNo)) {
            releaseAckSem = true;
        }
        this.setLastAckSent(ackRequest);
        messageChannel.sendMessage(ackRequest);
        // Sent atleast one ACK.
        this.isAcknowledged = true;
        this.highestSequenceNumberAcknowledged = Math.max(this.highestSequenceNumberAcknowledged, ((SIPRequest) ackRequest).getCSeq().getSeqNumber());
        if (releaseAckSem && this.isBackToBackUserAgent) {
            this.releaseAckSem();
        } else {
            if (sipStack.isLoggingEnabled()) {
                sipStack.getStackLogger().logDebug("Not releasing ack sem for " + this + " isAckSent " + releaseAckSem);
            }
        }
    } catch (IOException ex) {
        if (throwIOExceptionAsSipException)
            throw new SipException("Could not send ack", ex);
        this.raiseIOException(hop.getHost(), hop.getPort(), hop.getTransport());
    } catch (SipException ex) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logException(ex);
        throw ex;
    } catch (Exception ex) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logException(ex);
        throw new SipException("Could not create message channel", ex);
    }
    if (this.dialogDeleteTask != null) {
        this.dialogDeleteTask.cancel();
        this.dialogDeleteTask = null;
    }
    this.ackSeen = true;
}