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

Example 11 with SIPResponse

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

the class DialogFilter method sendBadRequestResponse.

/**
     * Send a BAD REQUEST response.
     * 
     * @param sipRequest
     * @param transaction
     * @param reasonPhrase
     */
private void sendBadRequestResponse(SIPRequest sipRequest, SIPServerTransaction transaction, String reasonPhrase) {
    SIPResponse sipResponse = sipRequest.createResponse(Response.BAD_REQUEST);
    if (reasonPhrase != null)
        sipResponse.setReasonPhrase(reasonPhrase);
    ServerHeader serverHeader = MessageFactoryImpl.getDefaultServerHeader();
    if (serverHeader != null) {
        sipResponse.setHeader(serverHeader);
    }
    try {
        if (sipRequest.getMethod().equals(Request.INVITE)) {
            sipStack.addTransactionPendingAck(transaction);
        }
        transaction.sendResponse(sipResponse);
        transaction.releaseSem();
    } catch (Exception ex) {
        sipStack.getStackLogger().logError("Problem sending error response", ex);
        transaction.releaseSem();
        sipStack.removeTransaction(transaction);
    }
}

Example 12 with SIPResponse

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

the class DialogFilter method sendServerInternalErrorResponse.

/**
     * Send back an error Response.
     * 
     * @param sipRequest
     * @param transaction
     */
private void sendServerInternalErrorResponse(SIPRequest sipRequest, SIPServerTransaction transaction) {
    if (sipStack.isLoggingEnabled())
        sipStack.getStackLogger().logDebug("Sending 500 response for out of sequence message");
    SIPResponse sipResponse = sipRequest.createResponse(Response.SERVER_INTERNAL_ERROR);
    sipResponse.setReasonPhrase("Request out of order");
    if (MessageFactoryImpl.getDefaultServerHeader() != null) {
        ServerHeader serverHeader = MessageFactoryImpl.getDefaultServerHeader();
        sipResponse.setHeader(serverHeader);
    }
    try {
        RetryAfter retryAfter = new RetryAfter();
        retryAfter.setRetryAfter(10);
        sipResponse.setHeader(retryAfter);
        sipStack.addTransactionPendingAck(transaction);
        transaction.sendResponse(sipResponse);
        transaction.releaseSem();
    } catch (Exception ex) {
        sipStack.getStackLogger().logError("Problem sending response", ex);
        transaction.releaseSem();
        sipStack.removeTransaction(transaction);
    }
}

Example 13 with SIPResponse

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

the class SIPServerTransaction method sendReliableProvisionalResponse.

protected void sendReliableProvisionalResponse(Response relResponse) throws SipException {
    /*
         * After the first reliable provisional response for a request has been acknowledged, the
         * UAS MAY send additional reliable provisional responses. The UAS MUST NOT send a second
         * reliable provisional response until the first is acknowledged.
         */
    if (this.pendingReliableResponse != null) {
        throw new SipException("Unacknowledged response");
    } else
        this.pendingReliableResponse = (SIPResponse) relResponse;
    /*
         * In addition, it MUST contain a Require header field containing the option tag 100rel,
         * and MUST include an RSeq header field.
         */
    RSeq rseq = (RSeq) relResponse.getHeader(RSeqHeader.NAME);
    if (relResponse.getHeader(RSeqHeader.NAME) == null) {
        rseq = new RSeq();
        relResponse.setHeader(rseq);
    }
    try {
        this.rseqNumber++;
        rseq.setSeqNumber(this.rseqNumber);
        // start the timer task which will retransmit the reliable response
        // until the PRACK is received
        this.lastResponse = (SIPResponse) relResponse;
        if (this.getDialog() != null) {
            boolean acquired = this.provisionalResponseSem.tryAcquire(1, TimeUnit.SECONDS);
            if (!acquired) {
                throw new SipException("Unacknowledged response");
            }
        }
        this.sendMessage((SIPMessage) relResponse);
        this.provisionalResponseTask = new ProvisionalResponseTask();
        this.sipStack.getTimer().schedule(provisionalResponseTask, 0, SIPTransactionStack.BASE_TIMER_INTERVAL);
    } catch (Exception ex) {
        InternalErrorHandler.handleException(ex);
    }
}

Example 14 with SIPResponse

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

the class SIPServerTransaction method sendResponse.

/*
     * (non-Javadoc)
     *
     * @see javax.sip.ServerTransaction#sendResponse(javax.sip.message.Response)
     */
public void sendResponse(Response response) throws SipException {
    SIPResponse sipResponse = (SIPResponse) response;
    SIPDialog dialog = this.dialog;
    if (response == null)
        throw new NullPointerException("null response");
    try {
        sipResponse.checkHeaders();
    } catch (ParseException ex) {
        throw new SipException(ex.getMessage());
    }
    // check for meaningful response.
    if (!sipResponse.getCSeq().getMethod().equals(this.getMethod())) {
        throw new SipException("CSeq method does not match Request method of request that created the tx.");
    }
    /*
         * 200-class responses to SUBSCRIBE requests also MUST contain an "Expires" header. The
         * period of time in the response MAY be shorter but MUST NOT be longer than specified in
         * the request.
         */
    if (this.getMethod().equals(Request.SUBSCRIBE) && response.getStatusCode() / 100 == 2) {
        if (response.getHeader(ExpiresHeader.NAME) == null) {
            throw new SipException("Expires header is mandatory in 2xx response of SUBSCRIBE");
        } else {
            Expires requestExpires = (Expires) this.getOriginalRequest().getExpires();
            Expires responseExpires = (Expires) response.getExpires();
            /*
                 * If no "Expires" header is present in a SUBSCRIBE request, the implied default
                 * is defined by the event package being used.
                 */
            if (requestExpires != null && responseExpires.getExpires() > requestExpires.getExpires()) {
                throw new SipException("Response Expires time exceeds request Expires time : See RFC 3265 3.1.1");
            }
        }
    }
    // Check for mandatory header.
    if (sipResponse.getStatusCode() == 200 && sipResponse.getCSeq().getMethod().equals(Request.INVITE) && sipResponse.getHeader(ContactHeader.NAME) == null)
        throw new SipException("Contact Header is mandatory for the OK to the INVITE");
    if (!this.isMessagePartOfTransaction((SIPMessage) response)) {
        throw new SipException("Response does not belong to this transaction.");
    }
    // Fix up the response if the dialog has already been established.
    try {
        /*
             * The UAS MAY send a final response to the initial request before
             * having received PRACKs for all unacknowledged reliable provisional responses,
             * unless the final response is 2xx and any of the unacknowledged reliable provisional
             * responses contained a session description. In that case, it MUST NOT send a final
             * response until those provisional responses are acknowledged.
             */
        if (this.pendingReliableResponse != null && this.getDialog() != null && this.getState() != TransactionState.TERMINATED && ((SIPResponse) response).getContentTypeHeader() != null && response.getStatusCode() / 100 == 2 && ((SIPResponse) response).getContentTypeHeader().getContentType().equalsIgnoreCase("application") && ((SIPResponse) response).getContentTypeHeader().getContentSubType().equalsIgnoreCase("sdp")) {
            try {
                boolean acquired = this.provisionalResponseSem.tryAcquire(1, TimeUnit.SECONDS);
                if (!acquired) {
                    throw new SipException("cannot send response -- unacked povisional");
                }
            } catch (Exception ex) {
                this.sipStack.getStackLogger().logError("Could not acquire PRACK sem ", ex);
            }
        } else {
            // pending response task.
            if (this.pendingReliableResponse != null && sipResponse.isFinalResponse()) {
                this.provisionalResponseTask.cancel();
                this.provisionalResponseTask = null;
            }
        }
        // being sent makes sense.
        if (dialog != null) {
            if (sipResponse.getStatusCode() / 100 == 2 && sipStack.isDialogCreated(sipResponse.getCSeq().getMethod())) {
                if (dialog.getLocalTag() == null && sipResponse.getTo().getTag() == null) {
                    // Trying to send final response and user forgot to set
                    // to
                    // tag on the response -- be nice and assign the tag for
                    // the user.
                    sipResponse.getTo().setTag(Utils.getInstance().generateTag());
                } else if (dialog.getLocalTag() != null && sipResponse.getToTag() == null) {
                    sipResponse.setToTag(dialog.getLocalTag());
                } else if (dialog.getLocalTag() != null && sipResponse.getToTag() != null && !dialog.getLocalTag().equals(sipResponse.getToTag())) {
                    throw new SipException("Tag mismatch dialogTag is " + dialog.getLocalTag() + " responseTag is " + sipResponse.getToTag());
                }
            }
            if (!sipResponse.getCallId().getCallId().equals(dialog.getCallId().getCallId())) {
                throw new SipException("Dialog mismatch!");
            }
        }
        // Backward compatibility slippery slope....
        // Only set the from tag in the response when the
        // incoming request has a from tag.
        String fromTag = ((SIPRequest) this.getRequest()).getFrom().getTag();
        if (fromTag != null && sipResponse.getFromTag() != null && !sipResponse.getFromTag().equals(fromTag)) {
            throw new SipException("From tag of request does not match response from tag");
        } else if (fromTag != null) {
            sipResponse.getFrom().setTag(fromTag);
        } else {
            if (sipStack.isLoggingEnabled())
                sipStack.getStackLogger().logDebug("WARNING -- Null From tag in request!!");
        }
        // or if the state of the dialog needs to be changed.
        if (dialog != null && response.getStatusCode() != 100) {
            dialog.setResponseTags(sipResponse);
            DialogState oldState = dialog.getState();
            dialog.setLastResponse(this, (SIPResponse) response);
            if (oldState == null && dialog.getState() == DialogState.TERMINATED) {
                DialogTerminatedEvent event = new DialogTerminatedEvent(dialog.getSipProvider(), dialog);
                // Provide notification to the listener that the dialog has
                // ended.
                dialog.getSipProvider().handleEvent(event, this);
            }
        } else if (dialog == null && this.getMethod().equals(Request.INVITE) && this.retransmissionAlertEnabled && this.retransmissionAlertTimerTask == null && response.getStatusCode() / 100 == 2) {
            String dialogId = ((SIPResponse) response).getDialogId(true);
            this.retransmissionAlertTimerTask = new RetransmissionAlertTimerTask(dialogId);
            sipStack.retransmissionAlertTransactions.put(dialogId, this);
            sipStack.getTimer().schedule(this.retransmissionAlertTimerTask, 0, SIPTransactionStack.BASE_TIMER_INTERVAL);
        }
        // Send message after possibly inserting the Dialog
        // into the dialog table to avoid a possible race condition.
        this.sendMessage((SIPResponse) response);
        if (dialog != null) {
            dialog.startRetransmitTimer(this, (SIPResponse) response);
        }
    } catch (IOException ex) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logException(ex);
        this.setState(TransactionState.TERMINATED);
        raiseErrorEvent(SIPTransactionErrorEvent.TRANSPORT_ERROR);
        throw new SipException(ex.getMessage());
    } catch (java.text.ParseException ex1) {
        if (sipStack.isLoggingEnabled())
            sipStack.getStackLogger().logException(ex1);
        this.setState(TransactionState.TERMINATED);
        throw new SipException(ex1.getMessage());
    }
}

Example 15 with SIPResponse

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

the class UDPMessageChannel method processMessage.

/**
     * Actually proces the parsed message.
     *
     * @param sipMessage
     */
public void processMessage(SIPMessage sipMessage) {
    if (sipMessage instanceof SIPRequest) {
        SIPRequest sipRequest = (SIPRequest) sipMessage;
        // all processing is OK.
        if (sipStack.getStackLogger().isLoggingEnabled(ServerLogger.TRACE_MESSAGES)) {
            this.sipStack.serverLogger.logMessage(sipMessage, this.getPeerHostPort().toString(), this.getHost() + ":" + this.myPort, false, receptionTime);
        }
        ServerRequestInterface sipServerRequest = sipStack.newSIPServerRequest(sipRequest, this);
        // Drop it if there is no request returned
        if (sipServerRequest == null) {
            if (sipStack.isLoggingEnabled()) {
                this.sipStack.getStackLogger().logWarning("Null request interface returned -- dropping request");
            }
            return;
        }
        if (sipStack.isLoggingEnabled())
            this.sipStack.getStackLogger().logDebug("About to process " + sipRequest.getFirstLine() + "/" + sipServerRequest);
        try {
            sipServerRequest.processRequest(sipRequest, this);
        } finally {
            if (sipServerRequest instanceof SIPTransaction) {
                SIPServerTransaction sipServerTx = (SIPServerTransaction) sipServerRequest;
                if (!sipServerTx.passToListener()) {
                    ((SIPTransaction) sipServerRequest).releaseSem();
                }
            }
        }
        if (sipStack.isLoggingEnabled())
            this.sipStack.getStackLogger().logDebug("Done processing " + sipRequest.getFirstLine() + "/" + sipServerRequest);
    // So far so good -- we will commit this message if
    // all processing is OK.
    } else {
        // Handle a SIP Reply message.
        SIPResponse sipResponse = (SIPResponse) sipMessage;
        try {
            sipResponse.checkHeaders();
        } catch (ParseException ex) {
            if (sipStack.isLoggingEnabled())
                sipStack.getStackLogger().logError("Dropping Badly formatted response message >>> " + sipResponse);
            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();
            }
        // Normal processing of message.
        } else {
            if (sipStack.isLoggingEnabled()) {
                this.sipStack.getStackLogger().logDebug("null sipServerResponse!");
            }
        }
    }
}