registerprocessing.java

开源项目openfire的完整源程序

            sipManCallback.fireRegistrationFailed(registrarAddress == null ? "" : registrarAddress, RegistrationEvent.Type.TimeOut);
        }
    }

    /**
     * Synchronize because of timer tasks
     *
     * @throws CommunicationsException
     */
    synchronized void unregister() throws CommunicationsException {
        try {

            Log.debug("UNREGISTER");

            if (!isRegistered) {
                return;
            }

            cancelPendingRegistrations();
            isRegistered = false;
            isUnregistering = true;

            Request registerRequest = getRegisterRequest();
            if (this.registerRequest == null) {

                throw new CommunicationsException(
                        "Couldn't find the initial register request");
            }
            Request unregisterRequest = (Request) registerRequest.clone();
            try {
                unregisterRequest.getExpires().setExpires(0);
                CSeqHeader cSeqHeader = (CSeqHeader) unregisterRequest
                        .getHeader(CSeqHeader.NAME);
                // [issue 1] - increment registration cseq number
                // reported by - Roberto Tealdi <[e-mail]>
                cSeqHeader
                        .setSeqNumber(cSeqHeader.getSeqNumber() + 1);

            }
            catch (InvalidArgumentException ex) {

                // Shouldn't happen
                throw new CommunicationsException(
                        "Unable to set Expires Header", ex);
            }
            ClientTransaction unregisterTransaction = null;
            try {
                unregisterTransaction = sipManCallback.sipProvider
                        .getNewClientTransaction(unregisterRequest);
            }
            catch (TransactionUnavailableException ex) {
                throw new CommunicationsException(
                        "Unable to create a unregister transaction", ex);
            }
            try {
                sipManCallback
                        .fireUnregistering(sipManCallback.currentlyUsedURI);
                unregisterTransaction.sendRequest();
            }
            catch (SipException ex) {
                throw new CommunicationsException(
                        "Failed to send unregister request", ex);
            }
        }
        catch (Exception e) {
            Log.error("unregister", e);
        }
    }

    /**
     * Synchronize because of timer tasks
     *
     * @throws CommunicationsException
     */
    synchronized void subscribe(String registrarAddress, int registrarPort, String registrarTransport) throws CommunicationsException {
        FromHeader fromHeader = sipManCallback.getFromHeader(true);
        Address fromAddress = fromHeader.getAddress();
        // Request URI
        URI requestURI = null;
        try {
            requestURI = sipManCallback.addressFactory.createSipURI(sipManCallback.getCurrentUsername(), registrarAddress);
        } catch (ParseException e) {
            Log.error(e);
        }

        // Call ID Header
        CallIdHeader callIdHeader = sipManCallback.sipProvider
                .getNewCallId();
        // CSeq Header
        CSeqHeader cSeqHeader = null;
        try {
            cSeqHeader = sipManCallback.headerFactory.createCSeqHeader((long) 1,
                    Request.SUBSCRIBE);
        }
        catch (ParseException ex) {
            // Should never happen

            Log.error("register", ex);

        }
        catch (InvalidArgumentException ex) {
            // Should never happen

            Log.error("register", ex);

        }
        // To Header
        ToHeader toHeader = null;
        try {
            toHeader = sipManCallback.headerFactory.createToHeader(
                    fromAddress, null);
        }
        catch (ParseException ex) {
            // throw was missing - reported by Eero Vaarnas
            throw new CommunicationsException(
                    "Could not create a To header " + "for address:"
                            + fromHeader.getAddress(), ex);
        }
        // User Agent Header
        UserAgentHeader uaHeader = null;
        ArrayList userAgentList = new ArrayList();
        userAgentList.add(SoftPhoneManager.userAgent);

        try {
            uaHeader = sipManCallback.headerFactory
                    .createUserAgentHeader(userAgentList);
        }
        catch (ParseException ex) {
            // throw was missing - reported by Eero Vaarnas
            throw new CommunicationsException(
                    "Could not create a To header " + "for address:"
                            + fromHeader.getAddress(), ex);
        }

        // Via Headers
        ArrayList viaHeaders = sipManCallback.getLocalViaHeaders();
        // MaxForwardsHeader
        MaxForwardsHeader maxForwardsHeader = sipManCallback
                .getMaxForwardsHeader();
        // Request
        Request request = null;
        try {
            request = sipManCallback.messageFactory.createRequest(
                    requestURI, Request.SUBSCRIBE, callIdHeader, cSeqHeader,
                    fromHeader, toHeader, viaHeaders, maxForwardsHeader);
            request.setHeader(uaHeader);
        }
        catch (ParseException ex) {
            throw new CommunicationsException(
                    "Could not create the register request!", ex);
        }
        // Expires Header
        ExpiresHeader expHeader = null;
        try {
            expHeader = sipManCallback.headerFactory.createExpiresHeader(3000);
        }
        catch (InvalidArgumentException ex) {
        }
        request.addHeader(expHeader);

        try {
            EventHeader event = sipManCallback.headerFactory.createEventHeader("message-summary");
            request.addHeader(event);
        } catch (ParseException e) {
            Log.error(e);
        }

        // Contact Header should contain IP - bug report - Eero Vaarnas
        ContactHeader contactHeader = sipManCallback
                .getRegistrationContactHeader();
        request.addHeader(contactHeader);
        AllowHeader allow = null;
        try {
            allow = sipManCallback.headerFactory.createAllowHeader("INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO");
            request.addHeader(allow);
        } catch (ParseException e) {
            Log.error(e);
        }

        // Transaction
        ClientTransaction regTrans = null;
        try {
            regTrans = sipManCallback.sipProvider
                    .getNewClientTransaction(request);
        }
        catch (TransactionUnavailableException ex) {
            throw new CommunicationsException(
                    "Could not create a register transaction!\n"
                            + "Check that the Registrar address is correct!");
        }
        try {
            regTrans.sendRequest();
        }
        // we sometimes get a null pointer exception here so catch them all
        catch (Exception ex) {

            // throw was missing - reported by Eero Vaarnas
            throw new CommunicationsException(
                    "Could not send out the register request!", ex);
        }
        this.registerRequest = request;
    }

    public void cancelSchedules() {

        if (reRegisterTimer != null)
            reRegisterTimer.cancel();
        if (keepAliveTimer != null)
            keepAliveTimer.cancel();

        reRegisterTimer = null;
        keepAliveTimer = null;

    }

    /**
     * @return
     */
    boolean isRegistered() {
        return isRegistered;
    }

    /**
     * @return Returns the registerRequest.
     */
    private Request getRegisterRequest() {
        return registerRequest;
    }

    private class ReRegisterTask extends TimerTask {
        String registrarAddress = null;

        int registrarPort = -1;

        String transport = null;

        int expires = 0;

        public ReRegisterTask(String registrarAddress, int registrarPort,
                              String registrarTransport, int expires) {
            this.registrarAddress = registrarAddress;
            this.registrarPort = registrarPort;

            // don't do this.transport = transport ;)
            // bug report and fix by Willem Romijn (romijn at lucent.com)
            this.transport = registrarTransport;
            this.expires = expires;
        }

        public void run() {
            try {
                if (isRegistered())
                    register(registrarAddress, registrarPort, transport,
                            expires);
            }
            catch (CommunicationsException ex) {
                sipManCallback
                        .fireCommunicationsError(new CommunicationsException(
                                "Failed to reRegister", ex));
            }
        }
    }

    private class KeepAliveTask extends TimerTask {
        private int sec = 0;

        public KeepAliveTask(int s) {
            sec = s;
        }

        public void run() {
            try {
                if (sipManCallback.isRegistered()) {
                    try {
                        sipManCallback.messageProcessing.sendKeepAlive();// .sendMessage("","0".getBytes(),"text/plain",null);
                    }
                    catch (Exception e) {
                        Log.error("KeepAliveTask", e);
                    }
                }
            }
            finally {
                try {
                    this.finalize();
                }
                catch (Throwable e) {
                }
            }
        }
    }

    private void cancelPendingRegistrations() {
        try {

            if (reRegisterTimer != null)
                reRegisterTimer.cancel();
            if (keepAliveTimer != null)
                keepAliveTimer.cancel();

            reRegisterTimer = null;
            keepAliveTimer = null;

        }
        catch (Exception e) {
            Log.error("cancelPendingRegistrations", e);
        }
    }

    private void scheduleKeepAlive(int sec) {
        KeepAliveTask kat = new KeepAliveTask(sec);
        if (keepAliveTimer != null)
            keepAliveTimer.schedule(kat, sec * 1000, sec * 1000);
    }

    private void scheduleReRegistration(String registrarAddress,
                                        int registrarPort, String registrarTransport, int expires) {

        ReRegisterTask reRegisterTask = new ReRegisterTask(
                registrarAddress, registrarPort, registrarTransport,
                expires);

        // java.util.Timer thinks in miliseconds
        // bug report and fix by Willem Romijn (romijn at lucent.com)
        // We keep a margin of 10% when sending re-registrations (1000
        // becomes 900)
        expires = expires * 900;

        reRegisterTimer.schedule(reRegisterTask, expires);

    }
}