Examples with SIPMessage gov.nist.javax.sip.message.SIPMessage used on opensource projects

Example 1 with SIPMessage

use of gov.nist.javax.sip.message.SIPMessage 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 2 with SIPMessage

use of gov.nist.javax.sip.message.SIPMessage 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 3 with SIPMessage

use of gov.nist.javax.sip.message.SIPMessage in project XobotOS by xamarin.

the class StringMsgParser method parseSIPMessage.

/**
     * Parse a buffer containing one or more SIP Messages and return an array of
     * SIPMessage parsed structures.
     *
     * @param msgString
     *            a String containing the messages to be parsed. This can
     *            consist of multiple SIP Messages concatenated together.
     * @return a SIPMessage structure (request or response) containing the
     *         parsed SIP message.
     * @exception ParseException
     *                is thrown when an illegal message has been encountered
     *                (and the rest of the buffer is discarded).
     * @see ParseExceptionListener
     */
public SIPMessage parseSIPMessage(String msgString) throws ParseException {
    if (msgString == null || msgString.length() == 0)
        return null;
    rawStringMessage = msgString;
    int i = 0;
    // Squeeze out any leading control character.
    try {
        while (msgString.charAt(i) < 0x20) i++;
    } catch (ArrayIndexOutOfBoundsException e) {
        // Array contains only control char, return null.
        return null;
    } catch (StringIndexOutOfBoundsException ex) {
        return null;
    }
    // Iterate thru the request/status line and headers.
    String currentLine = null;
    String currentHeader = null;
    boolean isFirstLine = true;
    SIPMessage message = null;
    do {
        int lineStart = i;
        // Find the length of the line.
        try {
            char c = msgString.charAt(i);
            while (c != '\r' && c != '\n') c = msgString.charAt(++i);
        } catch (ArrayIndexOutOfBoundsException e) {
            // End of the message.
            break;
        } catch (StringIndexOutOfBoundsException ex) {
            break;
        }
        // Make it a String.
        currentLine = msgString.substring(lineStart, i);
        currentLine = trimEndOfLine(currentLine);
        if (currentLine.length() == 0) {
            // Last header line, process the previous buffered header.
            if (currentHeader != null) {
                processHeader(currentHeader, message);
            }
        } else {
            if (isFirstLine) {
                message = processFirstLine(currentLine);
            } else {
                char firstChar = currentLine.charAt(0);
                if (firstChar == '\t' || firstChar == ' ') {
                    if (currentHeader == null)
                        throw new ParseException("Bad header continuation.", 0);
                    // This is a continuation, append it to the previous line.
                    currentHeader += currentLine.substring(1);
                } else {
                    if (currentHeader != null) {
                        processHeader(currentHeader, message);
                    }
                    currentHeader = currentLine;
                }
            }
        }
        if (msgString.charAt(i) == '\r' && msgString.length() > i + 1 && msgString.charAt(i + 1) == '\n')
            i++;
        i++;
        isFirstLine = false;
    } while (currentLine.length() > 0);
    message.setSize(i);
    // Check for content legth header
    if (readBody && message.getContentLength() != null) {
        if (message.getContentLength().getContentLength() != 0) {
            String body = msgString.substring(i);
            message.setMessageContent(body, this.strict, computeContentLengthFromMessage, message.getContentLength().getContentLength());
        } else if (!computeContentLengthFromMessage && message.getContentLength().getContentLength() == 0 && !msgString.endsWith("\r\n\r\n")) {
            if (strict) {
                throw new ParseException("Extraneous characters at the end of the message ", i);
            }
        }
    }
    return message;
}

Example 4 with SIPMessage

use of gov.nist.javax.sip.message.SIPMessage in project XobotOS by xamarin.

the class StringMsgParser method processFirstLine.

private SIPMessage processFirstLine(String firstLine) throws ParseException {
    SIPMessage message;
    if (!firstLine.startsWith(SIPConstants.SIP_VERSION_STRING)) {
        message = new SIPRequest();
        try {
            RequestLine requestLine = new RequestLineParser(firstLine + "\n").parse();
            ((SIPRequest) message).setRequestLine(requestLine);
        } catch (ParseException ex) {
            if (this.parseExceptionListener != null)
                this.parseExceptionListener.handleException(ex, message, RequestLine.class, firstLine, rawStringMessage);
            else
                throw ex;
        }
    } else {
        message = new SIPResponse();
        try {
            StatusLine sl = new StatusLineParser(firstLine + "\n").parse();
            ((SIPResponse) message).setStatusLine(sl);
        } catch (ParseException ex) {
            if (this.parseExceptionListener != null) {
                this.parseExceptionListener.handleException(ex, message, StatusLine.class, firstLine, rawStringMessage);
            } else
                throw ex;
        }
    }
    return message;
}

Example 5 with SIPMessage

use of gov.nist.javax.sip.message.SIPMessage in project XobotOS by xamarin.

the class StringMsgParser method main.

/**
     * Test code.
     */
public static void main(String[] args) throws ParseException {
    String[] messages = { "SIP/2.0 200 OK\r\n" + "To: \"The Little Blister\" <sip:LittleGuy@there.com>;tag=469bc066\r\n" + "From: \"The Master Blaster\" <sip:BigGuy@here.com>;tag=11\r\n" + "Via: SIP/2.0/UDP 139.10.134.246:5060;branch=z9hG4bK8b0a86f6_1030c7d18e0_17;received=139.10.134.246\r\n" + "Call-ID: 1030c7d18ae_a97b0b_b@8b0a86f6\r\n" + "CSeq: 1 SUBSCRIBE\r\n" + "Contact: <sip:172.16.11.162:5070>\r\n" + "Content-Length: 0\r\n\r\n", "SIP/2.0 180 Ringing\r\n" + "Via: SIP/2.0/UDP 172.18.1.29:5060;branch=z9hG4bK43fc10fb4446d55fc5c8f969607991f4\r\n" + "To: \"0440\" <sip:0440@212.209.220.131>;tag=2600\r\n" + "From: \"Andreas\" <sip:andreas@e-horizon.se>;tag=8524\r\n" + "Call-ID: f51a1851c5f570606140f14c8eb64fd3@172.18.1.29\r\n" + "CSeq: 1 INVITE\r\n" + "Max-Forwards: 70\r\n" + "Record-Route: <sip:212.209.220.131:5060>\r\n" + "Content-Length: 0\r\n\r\n", "REGISTER sip:nist.gov SIP/2.0\r\n" + "Via: SIP/2.0/UDP 129.6.55.182:14826\r\n" + "Max-Forwards: 70\r\n" + "From: <sip:mranga@nist.gov>;tag=6fcd5c7ace8b4a45acf0f0cd539b168b;epid=0d4c418ddf\r\n" + "To: <sip:mranga@nist.gov>\r\n" + "Call-ID: c5679907eb954a8da9f9dceb282d7230@129.6.55.182\r\n" + "CSeq: 1 REGISTER\r\n" + "Contact: <sip:129.6.55.182:14826>;methods=\"INVITE, MESSAGE, INFO, SUBSCRIBE, OPTIONS, BYE, CANCEL, NOTIFY, ACK, REFER\"\r\n" + "User-Agent: RTC/(Microsoft RTC)\r\n" + "Event:  registration\r\n" + "Allow-Events: presence\r\n" + "Content-Length: 0\r\n\r\n" + "INVITE sip:littleguy@there.com:5060 SIP/2.0\r\n" + "Via: SIP/2.0/UDP 65.243.118.100:5050\r\n" + "From: M. Ranganathan  <sip:M.Ranganathan@sipbakeoff.com>;tag=1234\r\n" + "To: \"littleguy@there.com\" <sip:littleguy@there.com:5060> \r\n" + "Call-ID: Q2AboBsaGn9!?x6@sipbakeoff.com \r\n" + "CSeq: 1 INVITE \r\n" + "Content-Length: 247\r\n\r\n" + "v=0\r\n" + "o=4855 13760799956958020 13760799956958020 IN IP4  129.6.55.78\r\n" + "s=mysession session\r\n" + "p=+46 8 52018010\r\n" + "c=IN IP4  129.6.55.78\r\n" + "t=0 0\r\n" + "m=audio 6022 RTP/AVP 0 4 18\r\n" + "a=rtpmap:0 PCMU/8000\r\n" + "a=rtpmap:4 G723/8000\r\n" + "a=rtpmap:18 G729A/8000\r\n" + "a=ptime:20\r\n" };
    class ParserThread implements Runnable {

        String[] messages;

        public ParserThread(String[] messagesToParse) {
            this.messages = messagesToParse;
        }

        public void run() {
            for (int i = 0; i < messages.length; i++) {
                StringMsgParser smp = new StringMsgParser();
                try {
                    SIPMessage sipMessage = smp.parseSIPMessage(messages[i]);
                    System.out.println(" i = " + i + " branchId = " + sipMessage.getTopmostVia().getBranch());
                // System.out.println("encoded " +
                // sipMessage.toString());
                } catch (ParseException ex) {
                }
            // System.out.println("dialog id = " +
            // sipMessage.getDialogId(false));
            }
        }
    }
    for (int i = 0; i < 20; i++) {
        new Thread(new ParserThread(messages)).start();
    }
}