Examples with ViaList gov.nist.javax.sip.header.ViaList used on opensource projects

Example 1 with ViaList

use of gov.nist.javax.sip.header.ViaList 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 2 with ViaList

use of gov.nist.javax.sip.header.ViaList in project XobotOS by xamarin.

the class SIPServerTransaction method isMessagePartOfTransaction.

/**
     * Determines if the message is a part of this transaction.
     *
     * @param messageToTest Message to check if it is part of this transaction.
     *
     * @return True if the message is part of this transaction, false if not.
     */
public boolean isMessagePartOfTransaction(SIPMessage messageToTest) {
    // List of Via headers in the message to test
    ViaList viaHeaders;
    // Topmost Via header in the list
    Via topViaHeader;
    // Branch code in the topmost Via header
    String messageBranch;
    // Flags whether the select message is part of this transaction
    boolean transactionMatches;
    transactionMatches = false;
    String method = messageToTest.getCSeq().getMethod();
    // http://bugs.sipit.net/show_bug.cgi?id=769
    if ((method.equals(Request.INVITE) || !isTerminated())) {
        // Get the topmost Via header and its branch parameter
        viaHeaders = messageToTest.getViaHeaders();
        if (viaHeaders != null) {
            topViaHeader = (Via) viaHeaders.getFirst();
            messageBranch = topViaHeader.getBranch();
            if (messageBranch != null) {
                // does not start with the magic cookie,
                if (!messageBranch.toLowerCase().startsWith(SIPConstants.BRANCH_MAGIC_COOKIE_LOWER_CASE)) {
                    // Flags this as old
                    // (RFC2543-compatible) client
                    // version
                    messageBranch = null;
                }
            }
            // If a new branch parameter exists,
            if (messageBranch != null && this.getBranch() != null) {
                if (method.equals(Request.CANCEL)) {
                    // Cancel is handled as a special case because it
                    // shares the same same branch id of the invite
                    // that it is trying to cancel.
                    transactionMatches = this.getMethod().equals(Request.CANCEL) && getBranch().equalsIgnoreCase(messageBranch) && topViaHeader.getSentBy().equals(((Via) getOriginalRequest().getViaHeaders().getFirst()).getSentBy());
                } else {
                    // Matching server side transaction with only the
                    // branch parameter.
                    transactionMatches = getBranch().equalsIgnoreCase(messageBranch) && topViaHeader.getSentBy().equals(((Via) getOriginalRequest().getViaHeaders().getFirst()).getSentBy());
                }
            } else {
                // This is an RFC2543-compliant message; this code is here
                // for backwards compatibility.
                // It is a weak check.
                // If RequestURI, To tag, From tag, CallID, CSeq number, and
                // top Via headers are the same, the
                // SIPMessage matches this transaction. An exception is for
                // a CANCEL request, which is not deemed
                // to be part of an otherwise-matching INVITE transaction.
                String originalFromTag = super.fromTag;
                String thisFromTag = messageToTest.getFrom().getTag();
                boolean skipFrom = (originalFromTag == null || thisFromTag == null);
                String originalToTag = super.toTag;
                String thisToTag = messageToTest.getTo().getTag();
                boolean skipTo = (originalToTag == null || thisToTag == null);
                boolean isResponse = (messageToTest instanceof SIPResponse);
                // be CANCEL for it to have a chance at matching.
                if (messageToTest.getCSeq().getMethod().equalsIgnoreCase(Request.CANCEL) && !getOriginalRequest().getCSeq().getMethod().equalsIgnoreCase(Request.CANCEL)) {
                    transactionMatches = false;
                } else if ((isResponse || getOriginalRequest().getRequestURI().equals(((SIPRequest) messageToTest).getRequestURI())) && (skipFrom || originalFromTag != null && originalFromTag.equalsIgnoreCase(thisFromTag)) && (skipTo || originalToTag != null && originalToTag.equalsIgnoreCase(thisToTag)) && getOriginalRequest().getCallId().getCallId().equalsIgnoreCase(messageToTest.getCallId().getCallId()) && getOriginalRequest().getCSeq().getSeqNumber() == messageToTest.getCSeq().getSeqNumber() && ((!messageToTest.getCSeq().getMethod().equals(Request.CANCEL)) || getOriginalRequest().getMethod().equals(messageToTest.getCSeq().getMethod())) && topViaHeader.equals(getOriginalRequest().getViaHeaders().getFirst())) {
                    transactionMatches = true;
                }
            }
        }
    }
    return transactionMatches;
}

Example 3 with ViaList

use of gov.nist.javax.sip.header.ViaList in project jain-sip.ha by RestComm.

the class SimpleB2BUAHandler method createRequest.

@SuppressWarnings("unchecked")
private Request createRequest(Request origRequest, int peerPort) throws SipException {
    final SIPRequest request = (SIPRequest) origRequest.clone();
    try {
        long l = new AtomicLong().incrementAndGet();
        request.getFromHeader().setTag(Long.toString(l));
    } catch (ParseException e1) {
        throw new SipException("failed to set local tag", e1);
    }
    final String transport = request.getTopmostViaHeader().getTransport();
    final ListeningPointImpl listeningPointImpl = (ListeningPointImpl) sipProvider.getListeningPoint(transport);
    final ViaList viaList = new ViaList();
    viaList.add((Via) listeningPointImpl.createViaHeader());
    request.setVia(viaList);
    try {
        request.setHeader(headerFactory.createMaxForwardsHeader(70));
    } catch (InvalidArgumentException e) {
        throw new SipException("Failed to create max forwards header", e);
    }
    request.setHeader((Header) sipProvider.getNewCallId());
    // set contact if the original response had it
    if (origRequest.getHeader(ContactHeader.NAME) != null) {
        request.setHeader(listeningPointImpl.createContactHeader());
    }
    /*
		 * Route header fields of the upstream request MAY be copied in the
		 * downstream request, except the topmost Route header if it is under
		 * the responsibility of the B2BUA. Additional Route header fields MAY
		 * also be added to the downstream request.
		 */
    if (getOutgoingDialog() == null || getOutgoingDialog().getState() == null) {
        // first request, no route available
        final RouteList routeList = request.getRouteHeaders();
        if (routeList != null) {
            final RouteHeader topRoute = routeList.get(0);
            final URI topRouteURI = topRoute.getAddress().getURI();
            if (topRouteURI.isSipURI()) {
                final SipURI topRouteSipURI = (SipURI) topRouteURI;
                if (topRouteSipURI.getHost().equals(listeningPointImpl.getIPAddress()) && topRouteSipURI.getPort() == listeningPointImpl.getPort()) {
                    if (routeList.size() > 1) {
                        routeList.remove(0);
                    } else {
                        request.removeHeader(RouteHeader.NAME);
                    }
                }
            }
        }
    } else {
        // replace route in orig request with the one in dialog
        request.removeHeader(RouteHeader.NAME);
        final RouteList routeList = new RouteList();
        for (Iterator<Route> it = getOutgoingDialog().getRouteSet(); it.hasNext(); ) {
            Route route = it.next();
            routeList.add(route);
        }
        if (!routeList.isEmpty()) {
            request.addHeader(routeList);
        }
    }
    /*
		 * Record-Route header fields of the upstream request are not copied in
		 * the new downstream request, as Record-Route is only meaningful for
		 * the upstream dialog.
		 */
    request.removeHeader(RecordRouteHeader.NAME);
    ((SipURI) request.getRequestURI()).setPort(peerPort);
    return request;
}

Example 4 with ViaList

use of gov.nist.javax.sip.header.ViaList in project XobotOS by xamarin.

the class SIPTransaction method doesCancelMatchTransaction.

/**
     * A method that can be used to test if an incoming request belongs to this
     * transction. This does not take the transaction state into account when
     * doing the check otherwise it is identical to isMessagePartOfTransaction.
     * This is useful for checking if a CANCEL belongs to this transaction.
     *
     * @param requestToTest
     *            is the request to test.
     * @return true if the the request belongs to the transaction.
     *
     */
public boolean doesCancelMatchTransaction(SIPRequest requestToTest) {
    // List of Via headers in the message to test
    ViaList viaHeaders;
    // Topmost Via header in the list
    Via topViaHeader;
    // Branch code in the topmost Via header
    String messageBranch;
    // Flags whether the select message is part of this transaction
    boolean transactionMatches;
    transactionMatches = false;
    if (this.getOriginalRequest() == null || this.getOriginalRequest().getMethod().equals(Request.CANCEL))
        return false;
    // Get the topmost Via header and its branch parameter
    viaHeaders = requestToTest.getViaHeaders();
    if (viaHeaders != null) {
        topViaHeader = (Via) viaHeaders.getFirst();
        messageBranch = topViaHeader.getBranch();
        if (messageBranch != null) {
            // does not start with the magic cookie,
            if (!messageBranch.toLowerCase().startsWith(SIPConstants.BRANCH_MAGIC_COOKIE_LOWER_CASE)) {
                // Flags this as old
                // (RFC2543-compatible) client
                // version
                messageBranch = null;
            }
        }
        // If a new branch parameter exists,
        if (messageBranch != null && this.getBranch() != null) {
            // this message,
            if (getBranch().equalsIgnoreCase(messageBranch) && topViaHeader.getSentBy().equals(((Via) getOriginalRequest().getViaHeaders().getFirst()).getSentBy())) {
                transactionMatches = true;
                if (sipStack.isLoggingEnabled())
                    sipStack.getStackLogger().logDebug("returning  true");
            }
        } else {
            // headers are the same,
            if (sipStack.isLoggingEnabled())
                sipStack.getStackLogger().logDebug("testing against " + getOriginalRequest());
            if (getOriginalRequest().getRequestURI().equals(requestToTest.getRequestURI()) && getOriginalRequest().getTo().equals(requestToTest.getTo()) && getOriginalRequest().getFrom().equals(requestToTest.getFrom()) && getOriginalRequest().getCallId().getCallId().equals(requestToTest.getCallId().getCallId()) && getOriginalRequest().getCSeq().getSeqNumber() == requestToTest.getCSeq().getSeqNumber() && topViaHeader.equals(getOriginalRequest().getViaHeaders().getFirst())) {
                transactionMatches = true;
            }
        }
    }
    // set it to false
    if (transactionMatches) {
        this.setPassToListener();
    }
    return transactionMatches;
}

Example 5 with ViaList

use of gov.nist.javax.sip.header.ViaList in project XobotOS by xamarin.

the class SIPClientTransaction method isMessagePartOfTransaction.

/**
     * Deterines if the message is a part of this transaction.
     * 
     * @param messageToTest Message to check if it is part of this transaction.
     * 
     * @return true if the message is part of this transaction, false if not.
     */
public boolean isMessagePartOfTransaction(SIPMessage messageToTest) {
    // List of Via headers in the message to test
    ViaList viaHeaders = messageToTest.getViaHeaders();
    // Flags whether the select message is part of this transaction
    boolean transactionMatches;
    String messageBranch = ((Via) viaHeaders.getFirst()).getBranch();
    boolean rfc3261Compliant = getBranch() != null && messageBranch != null && getBranch().toLowerCase().startsWith(SIPConstants.BRANCH_MAGIC_COOKIE_LOWER_CASE) && messageBranch.toLowerCase().startsWith(SIPConstants.BRANCH_MAGIC_COOKIE_LOWER_CASE);
    transactionMatches = false;
    if (TransactionState.COMPLETED == this.getState()) {
        if (rfc3261Compliant) {
            transactionMatches = getBranch().equalsIgnoreCase(((Via) viaHeaders.getFirst()).getBranch()) && getMethod().equals(messageToTest.getCSeq().getMethod());
        } else {
            transactionMatches = getBranch().equals(messageToTest.getTransactionId());
        }
    } else if (!isTerminated()) {
        if (rfc3261Compliant) {
            if (viaHeaders != null) {
                // same as this transaction and the method is the same,
                if (getBranch().equalsIgnoreCase(((Via) viaHeaders.getFirst()).getBranch())) {
                    transactionMatches = getOriginalRequest().getCSeq().getMethod().equals(messageToTest.getCSeq().getMethod());
                }
            }
        } else {
            // not RFC 3261 compliant.
            if (getBranch() != null) {
                transactionMatches = getBranch().equalsIgnoreCase(messageToTest.getTransactionId());
            } else {
                transactionMatches = getOriginalRequest().getTransactionId().equalsIgnoreCase(messageToTest.getTransactionId());
            }
        }
    }
    return transactionMatches;
}