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

Example 6 with Hop

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

the class SIPServerTransaction method sendResponse.

/**
     * Send a response.
     *
     * @param transactionResponse -- the response to send
     *
     */
private void sendResponse(SIPResponse transactionResponse) throws IOException {
    try {
        // that created the transaction, if that connection is still open.
        if (isReliable()) {
            getMessageChannel().sendMessage(transactionResponse);
        // TODO If that connection attempt fails, the server SHOULD
        // use SRV 3263 procedures
        // for servers in order to determine the IP address
        // and port to open the connection and send the response to.
        } else {
            Via via = transactionResponse.getTopmostVia();
            String transport = via.getTransport();
            if (transport == null)
                throw new IOException("missing transport!");
            // @@@ hagai 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;
            }
            // Otherwise, if the Via header field value contains a
            // "maddr" parameter, the response MUST be forwarded to
            // the address listed there, using the port indicated in
            // "sent-by",
            // or port 5060 if none is present. If the address is a
            // multicast
            // address, the response SHOULD be sent using
            // the TTL indicated in the "ttl" parameter, or with a
            // TTL of 1 if that parameter is not present.
            String host = null;
            if (via.getMAddr() != null) {
                host = via.getMAddr();
            } else {
                // Otherwise (for unreliable unicast transports),
                // if the top Via has a "received" parameter, the response
                // MUST
                // be sent to the
                // address in the "received" parameter, using the port
                // indicated
                // in the
                // "sent-by" value, or using port 5060 if none is specified
                // explicitly.
                host = via.getParameter(Via.RECEIVED);
                if (host == null) {
                    // Otherwise, if it is not receiver-tagged, the response
                    // MUST be
                    // sent to the address indicated by the "sent-by" value,
                    // using the procedures in Section 5
                    // RFC 3263 PROCEDURE TO BE DONE HERE
                    host = via.getHost();
                }
            }
            Hop hop = sipStack.addressResolver.resolveAddress(new HopImpl(host, port, transport));
            MessageChannel messageChannel = ((SIPTransactionStack) getSIPStack()).createRawMessageChannel(this.getSipProvider().getListeningPoint(hop.getTransport()).getIPAddress(), this.getPort(), hop);
            if (messageChannel != null)
                messageChannel.sendMessage(transactionResponse);
            else
                throw new IOException("Could not create a message channel for " + hop);
        }
    } finally {
        this.startTransactionTimer();
    }
}

Example 7 with Hop

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

the class SIPDialog method sendRequest.

public void sendRequest(ClientTransaction clientTransactionId, boolean allowInterleaving) throws TransactionDoesNotExistException, SipException {
    if ((!allowInterleaving) && clientTransactionId.getRequest().getMethod().equals(Request.INVITE)) {
        new Thread((new ReInviteSender(clientTransactionId))).start();
        return;
    }
    SIPRequest dialogRequest = ((SIPClientTransaction) clientTransactionId).getOriginalRequest();
    if (sipStack.isLoggingEnabled())
        sipStack.getStackLogger().logDebug("dialog.sendRequest " + " dialog = " + this + "\ndialogRequest = \n" + dialogRequest);
    if (clientTransactionId == null)
        throw new NullPointerException("null parameter");
    if (dialogRequest.getMethod().equals(Request.ACK) || dialogRequest.getMethod().equals(Request.CANCEL))
        throw new SipException("Bad Request Method. " + dialogRequest.getMethod());
    // JvB: added, allow re-sending of BYE after challenge
    if (byeSent && isTerminatedOnBye() && !dialogRequest.getMethod().equals(Request.BYE)) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logError("BYE already sent for " + this);
        throw new SipException("Cannot send request; BYE already sent");
    }
    if (dialogRequest.getTopmostVia() == null) {
        Via via = ((SIPClientTransaction) clientTransactionId).getOutgoingViaHeader();
        dialogRequest.addHeader(via);
    }
    if (!this.getCallId().getCallId().equalsIgnoreCase(dialogRequest.getCallId().getCallId())) {
        if (sipStack.isLoggingEnabled()) {
            sipStack.getStackLogger().logError("CallID " + this.getCallId());
            sipStack.getStackLogger().logError("RequestCallID = " + dialogRequest.getCallId().getCallId());
            sipStack.getStackLogger().logError("dialog =  " + this);
        }
        throw new SipException("Bad call ID in request");
    }
    // Set the dialog back pointer.
    ((SIPClientTransaction) clientTransactionId).setDialog(this, this.dialogId);
    this.addTransaction((SIPTransaction) clientTransactionId);
    // Enable the retransmission filter for the transaction
    ((SIPClientTransaction) clientTransactionId).isMapped = true;
    From from = (From) dialogRequest.getFrom();
    To to = (To) dialogRequest.getTo();
    // tag assignment is OK.
    if (this.getLocalTag() != null && from.getTag() != null && !from.getTag().equals(this.getLocalTag()))
        throw new SipException("From tag mismatch expecting  " + this.getLocalTag());
    if (this.getRemoteTag() != null && to.getTag() != null && !to.getTag().equals(this.getRemoteTag())) {
        if (sipStack.isLoggingEnabled())
            this.sipStack.getStackLogger().logWarning("To header tag mismatch expecting " + this.getRemoteTag());
    }
    /*
         * The application is sending a NOTIFY before sending the response of the dialog.
         */
    if (this.getLocalTag() == null && dialogRequest.getMethod().equals(Request.NOTIFY)) {
        if (!this.getMethod().equals(Request.SUBSCRIBE))
            throw new SipException("Trying to send NOTIFY without SUBSCRIBE Dialog!");
        this.setLocalTag(from.getTag());
    }
    try {
        if (this.getLocalTag() != null)
            from.setTag(this.getLocalTag());
        if (this.getRemoteTag() != null)
            to.setTag(this.getRemoteTag());
    } catch (ParseException ex) {
        InternalErrorHandler.handleException(ex);
    }
    Hop hop = ((SIPClientTransaction) clientTransactionId).getNextHop();
    if (sipStack.isLoggingEnabled()) {
        sipStack.getStackLogger().logDebug("Using hop = " + hop.getHost() + " : " + hop.getPort());
    }
    try {
        MessageChannel messageChannel = sipStack.createRawMessageChannel(this.getSipProvider().getListeningPoint(hop.getTransport()).getIPAddress(), this.firstTransactionPort, hop);
        MessageChannel oldChannel = ((SIPClientTransaction) clientTransactionId).getMessageChannel();
        // Remove this from the connection cache if it is in the
        // connection
        // cache and is not yet active.
        oldChannel.uncache();
        // Not configured to cache client connections.
        if (!sipStack.cacheClientConnections) {
            oldChannel.useCount--;
            if (sipStack.isLoggingEnabled())
                sipStack.getStackLogger().logDebug("oldChannel: useCount " + oldChannel.useCount);
        }
        if (messageChannel == null) {
            /*
                 * At this point the procedures of 8.1.2 and 12.2.1.1 of RFC3261 have been tried
                 * but the resulting next hop cannot be resolved (recall that the exception thrown
                 * is caught and ignored in SIPStack.createMessageChannel() so we end up here with
                 * a null messageChannel instead of the exception handler below). All else
                 * failing, try the outbound proxy in accordance with 8.1.2, in particular: This
                 * ensures that outbound proxies that do not add Record-Route header field values
                 * will drop out of the path of subsequent requests. It allows endpoints that
                 * cannot resolve the first Route URI to delegate that task to an outbound proxy.
                 * 
                 * if one considers the 'first Route URI' of a request constructed according to
                 * 12.2.1.1 to be the request URI when the route set is empty.
                 */
            if (sipStack.isLoggingEnabled())
                sipStack.getStackLogger().logDebug("Null message channel using outbound proxy !");
            Hop outboundProxy = sipStack.getRouter(dialogRequest).getOutboundProxy();
            if (outboundProxy == null)
                throw new SipException("No route found! hop=" + hop);
            messageChannel = sipStack.createRawMessageChannel(this.getSipProvider().getListeningPoint(outboundProxy.getTransport()).getIPAddress(), this.firstTransactionPort, outboundProxy);
            if (messageChannel != null)
                ((SIPClientTransaction) clientTransactionId).setEncapsulatedChannel(messageChannel);
        } else {
            ((SIPClientTransaction) clientTransactionId).setEncapsulatedChannel(messageChannel);
            if (sipStack.isLoggingEnabled()) {
                sipStack.getStackLogger().logDebug("using message channel " + messageChannel);
            }
        }
        if (messageChannel != null)
            messageChannel.useCount++;
        // See if we need to release the previously mapped channel.
        if ((!sipStack.cacheClientConnections) && oldChannel != null && oldChannel.useCount <= 0)
            oldChannel.close();
    } catch (Exception ex) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logException(ex);
        throw new SipException("Could not create message channel", ex);
    }
    try {
        // Increment before setting!!
        localSequenceNumber++;
        dialogRequest.getCSeq().setSeqNumber(getLocalSeqNumber());
    } catch (InvalidArgumentException ex) {
        sipStack.getStackLogger().logFatalError(ex.getMessage());
    }
    try {
        ((SIPClientTransaction) clientTransactionId).sendMessage(dialogRequest);
        /*
             * Note that if the BYE is rejected then the Dialog should bo back to the ESTABLISHED
             * state so we only set state after successful send.
             */
        if (dialogRequest.getMethod().equals(Request.BYE)) {
            this.byeSent = true;
            /*
                 * Dialog goes into TERMINATED state as soon as BYE is sent. ISSUE 182.
                 */
            if (isTerminatedOnBye()) {
                this.setState(DialogState._TERMINATED);
            }
        }
    } catch (IOException ex) {
        throw new SipException("error sending message", ex);
    }
}

Example 8 with Hop

use of javax.sip.address.Hop in project Openfire by igniterealtime.

the class SipCommRouter method getNextHops.

/**
     * Return the default address to forward the request to. The list is
     * organized in the following priority.
     * <p/>
     * If the outboung proxy has been specified, then it is used to construct
     * the first element of the list.
     * <p/>
     * If the requestURI refers directly to a host, the host and port
     * information are extracted from it and made the next hop on the list.
     *
     * @param sipRequest is the sip request to route.
     */
public ListIterator<Hop> getNextHops(Request sipRequest) {
    URI requestURI = sipRequest.getRequestURI();
    if (requestURI == null) {
        throw new IllegalArgumentException("Bad message: Null requestURI");
    }
    LinkedList<Hop> hops = new LinkedList<Hop>();
    if (outboundProxy != null) {
        hops.add(outboundProxy);
    }
    ListIterator routes = sipRequest.getHeaders(RouteHeader.NAME);
    if (routes != null && routes.hasNext()) {
        while (routes.hasNext()) {
            RouteHeader route = (RouteHeader) routes.next();
            SipURI uri = (SipURI) route.getAddress().getURI();
            int port = uri.getPort();
            port = (port == -1) ? 5060 : port;
            String host = uri.getHost();
            Log.debug("getNextHops", host);
            String transport = uri.getTransportParam();
            if (transport == null) {
                transport = "udp";
            }
            Hop hop = new SipCommHop(host + ':' + port + '/' + transport);
            hops.add(hop);
        }
    } else if (requestURI instanceof SipURI && ((SipURI) requestURI).getMAddrParam() != null) {
        SipURI sipURI = ((SipURI) requestURI);
        String maddr = sipURI.getMAddrParam();
        String transport = sipURI.getTransportParam();
        if (transport == null) {
            transport = "udp";
        }
        int port = 5060;
        Hop hop = new SipCommHop(maddr, port, transport);
        hops.add(hop);
    } else if (requestURI instanceof SipURI) {
        SipURI sipURI = ((SipURI) requestURI);
        int port = sipURI.getPort();
        if (port == -1) {
            port = 5060;
        }
        String host = sipURI.getHost();
        String transport = sipURI.getTransportParam();
        if (transport == null) {
            transport = "UDP";
        }
        Hop hop = new SipCommHop(host + ":" + port + "/" + transport);
        hops.add(hop);
    } else {
        throw new IllegalArgumentException("Malformed requestURI");
    }
    return (hops.size() == 0) ? null : hops.listIterator();
}

Example 9 with Hop

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

the class SipProviderImpl method sendRequest.

/*
     * (non-Javadoc)
     *
     * @see javax.sip.SipProvider#sendRequest(javax.sip.message.Request)
     */
public void sendRequest(Request request) throws SipException {
    if (!sipStack.isAlive())
        throw new SipException("Stack is stopped.");
    // message.
    if (((SIPRequest) request).getRequestLine() != null && request.getMethod().equals(Request.ACK)) {
        Dialog dialog = sipStack.getDialog(((SIPRequest) request).getDialogId(false));
        if (dialog != null && dialog.getState() != null) {
            if (sipStack.isLoggingEnabled())
                sipStack.getStackLogger().logWarning("Dialog exists -- you may want to use Dialog.sendAck() " + dialog.getState());
        }
    }
    Hop hop = sipStack.getRouter((SIPRequest) request).getNextHop(request);
    if (hop == null)
        throw new SipException("could not determine next hop!");
    SIPRequest sipRequest = (SIPRequest) request;
    // Null request is used to send default proxy keepalive messages.
    if ((!sipRequest.isNullRequest()) && sipRequest.getTopmostVia() == null)
        throw new SipException("Invalid SipRequest -- no via header!");
    try {
        /*
             * JvB: Via branch should already be OK, dont touch it here? Some
             * apps forward statelessly, and then it's not set. So set only when
             * not set already, dont overwrite CANCEL branch here..
             */
        if (!sipRequest.isNullRequest()) {
            Via via = sipRequest.getTopmostVia();
            String branch = via.getBranch();
            if (branch == null || branch.length() == 0) {
                via.setBranch(sipRequest.getTransactionId());
            }
        }
        MessageChannel messageChannel = null;
        if (this.listeningPoints.containsKey(hop.getTransport().toUpperCase()))
            messageChannel = sipStack.createRawMessageChannel(this.getListeningPoint(hop.getTransport()).getIPAddress(), this.getListeningPoint(hop.getTransport()).getPort(), hop);
        if (messageChannel != null) {
            messageChannel.sendMessage((SIPMessage) sipRequest, hop);
        } else {
            throw new SipException("Could not create a message channel for " + hop.toString());
        }
    } catch (IOException ex) {
        if (sipStack.isLoggingEnabled()) {
            sipStack.getStackLogger().logException(ex);
        }
        throw new SipException("IO Exception occured while Sending Request", ex);
    } catch (ParseException ex1) {
        InternalErrorHandler.handleException(ex1);
    } finally {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logDebug("done sending " + request.getMethod() + " to hop " + hop);
    }
}

Example 10 with Hop

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

the class AuthenticationHelperImpl method handleChallenge.

/*
     * (non-Javadoc)
     *
     * @see gov.nist.javax.sip.clientauthutils.AuthenticationHelper#handleChallenge(javax.sip.message.Response,
     *      javax.sip.ClientTransaction, javax.sip.SipProvider)
     */
public ClientTransaction handleChallenge(Response challenge, ClientTransaction challengedTransaction, SipProvider transactionCreator, int cacheTime) throws SipException, NullPointerException {
    try {
        if (sipStack.isLoggingEnabled()) {
            sipStack.getStackLogger().logDebug("handleChallenge: " + challenge);
        }
        SIPRequest challengedRequest = ((SIPRequest) challengedTransaction.getRequest());
        Request reoriginatedRequest = null;
        /*
             * If the challenged request is part of a Dialog and the
             * Dialog is confirmed the re-originated request should be
             * generated as an in-Dialog request.
             */
        if (challengedRequest.getToTag() != null || challengedTransaction.getDialog() == null || challengedTransaction.getDialog().getState() != DialogState.CONFIRMED) {
            reoriginatedRequest = (Request) challengedRequest.clone();
        } else {
            /*
                 * Re-originate the request by consulting the dialog. In particular
                 * the route set could change between the original request and the 
                 * in-dialog challenge.
                 */
            reoriginatedRequest = challengedTransaction.getDialog().createRequest(challengedRequest.getMethod());
            Iterator<String> headerNames = challengedRequest.getHeaderNames();
            while (headerNames.hasNext()) {
                String headerName = headerNames.next();
                if (reoriginatedRequest.getHeader(headerName) != null) {
                    ListIterator<Header> iterator = reoriginatedRequest.getHeaders(headerName);
                    while (iterator.hasNext()) {
                        reoriginatedRequest.addHeader(iterator.next());
                    }
                }
            }
        }
        // remove the branch id so that we could use the request in a new
        // transaction
        removeBranchID(reoriginatedRequest);
        if (challenge == null || reoriginatedRequest == null) {
            throw new NullPointerException("A null argument was passed to handle challenge.");
        }
        ListIterator authHeaders = null;
        if (challenge.getStatusCode() == Response.UNAUTHORIZED) {
            authHeaders = challenge.getHeaders(WWWAuthenticateHeader.NAME);
        } else if (challenge.getStatusCode() == Response.PROXY_AUTHENTICATION_REQUIRED) {
            authHeaders = challenge.getHeaders(ProxyAuthenticateHeader.NAME);
        } else {
            throw new IllegalArgumentException("Unexpected status code ");
        }
        if (authHeaders == null) {
            throw new IllegalArgumentException("Could not find WWWAuthenticate or ProxyAuthenticate headers");
        }
        // Remove all authorization headers from the request (we'll re-add them
        // from cache)
        reoriginatedRequest.removeHeader(AuthorizationHeader.NAME);
        reoriginatedRequest.removeHeader(ProxyAuthorizationHeader.NAME);
        // rfc 3261 says that the cseq header should be augmented for the new
        // request. do it here so that the new dialog (created together with
        // the new client transaction) takes it into account.
        // Bug report - Fredrik Wickstrom
        CSeqHeader cSeq = (CSeqHeader) reoriginatedRequest.getHeader((CSeqHeader.NAME));
        try {
            cSeq.setSeqNumber(cSeq.getSeqNumber() + 1l);
        } catch (InvalidArgumentException ex) {
            throw new SipException("Invalid CSeq -- could not increment : " + cSeq.getSeqNumber());
        }
        /* Resolve this to the next hop based on the previous lookup. If we are not using
             * lose routing (RFC2543) then just attach hop as a maddr param.
             */
        if (challengedRequest.getRouteHeaders() == null) {
            Hop hop = ((SIPClientTransaction) challengedTransaction).getNextHop();
            SipURI sipUri = (SipURI) reoriginatedRequest.getRequestURI();
            // BEGIN android-added
            if (!hop.getHost().equalsIgnoreCase(sipUri.getHost()) && !hop.equals(sipStack.getRouter(challengedRequest).getOutboundProxy()))
                // END android-added
                sipUri.setMAddrParam(hop.getHost());
            if (hop.getPort() != -1)
                sipUri.setPort(hop.getPort());
        }
        ClientTransaction retryTran = transactionCreator.getNewClientTransaction(reoriginatedRequest);
        WWWAuthenticateHeader authHeader = null;
        SipURI requestUri = (SipURI) challengedTransaction.getRequest().getRequestURI();
        while (authHeaders.hasNext()) {
            authHeader = (WWWAuthenticateHeader) authHeaders.next();
            String realm = authHeader.getRealm();
            AuthorizationHeader authorization = null;
            String sipDomain;
            if (this.accountManager instanceof SecureAccountManager) {
                UserCredentialHash credHash = ((SecureAccountManager) this.accountManager).getCredentialHash(challengedTransaction, realm);
                URI uri = reoriginatedRequest.getRequestURI();
                sipDomain = credHash.getSipDomain();
                authorization = this.getAuthorization(reoriginatedRequest.getMethod(), uri.toString(), (reoriginatedRequest.getContent() == null) ? "" : new String(reoriginatedRequest.getRawContent()), authHeader, credHash);
            } else {
                UserCredentials userCreds = ((AccountManager) this.accountManager).getCredentials(challengedTransaction, realm);
                sipDomain = userCreds.getSipDomain();
                if (userCreds == null)
                    throw new SipException("Cannot find user creds for the given user name and realm");
                // we haven't yet authenticated this realm since we were
                // started.
                authorization = this.getAuthorization(reoriginatedRequest.getMethod(), reoriginatedRequest.getRequestURI().toString(), (reoriginatedRequest.getContent() == null) ? "" : new String(reoriginatedRequest.getRawContent()), authHeader, userCreds);
            }
            if (sipStack.isLoggingEnabled())
                sipStack.getStackLogger().logDebug("Created authorization header: " + authorization.toString());
            if (cacheTime != 0)
                cachedCredentials.cacheAuthorizationHeader(sipDomain, authorization, cacheTime);
            reoriginatedRequest.addHeader(authorization);
        }
        if (sipStack.isLoggingEnabled()) {
            sipStack.getStackLogger().logDebug("Returning authorization transaction." + retryTran);
        }
        return retryTran;
    } catch (SipException ex) {
        throw ex;
    } catch (Exception ex) {
        sipStack.getStackLogger().logError("Unexpected exception ", ex);
        throw new SipException("Unexpected exception ", ex);
    }
}