org.mobicents.servlet.sip.proxy.ProxyUtils Maven / Gradle / Ivy
/*
* TeleStax, Open Source Cloud Communications
* Copyright 2011-2014, Telestax Inc and individual contributors
* by the @authors tag.
*
* This program is free software: you can redistribute it and/or modify
* under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see paramNames = routeRecord.getParameterNames();
// Copy the parameters set by the user
while(paramNames.hasNext()) {
String paramName = paramNames.next();
if(!paramName.equalsIgnoreCase("transport")) {
inboundRURI.setParameter(paramName,
routeRecord.getParameter(paramName));
}
}
inboundRURI.setParameter(MessageDispatcher.RR_PARAM_SERVER_NAME,
sipFactoryImpl.getSipApplicationDispatcher().getApplicationServerId());
inboundRURI.setParameter(MessageDispatcher.RR_PARAM_APPLICATION_NAME,
appName);
inboundRURI.setParameter(MessageDispatcher.RR_PARAM_PROXY_APP,
"true");
inboundRURI.setParameter(MessageDispatcher.APP_ID, sipAppKey.getId());
inboundRURI.setLrParam();
final Address rraddress = SipFactoryImpl.addressFactory
.createAddress(null, inboundRURI);
final RecordRouteHeader recordRouteHeader = SipFactoryImpl.headerFactory
.createRecordRouteHeader(rraddress);
clonedRequest.addFirst(recordRouteHeader);
}
javax.sip.address.SipURI rrURI = null;
if(proxy.isAppSpecifiedRecordRoutingEnabled()) {
// https://github.com/Mobicents/sip-servlets/issues/63
rrURI = ((SipURIImpl)proxy.getRecordRouteURI()).getSipURI();
if(logger.isDebugEnabled()){
logger.debug("Using Record Route URI specified by application on Proxy " + rrURI);
}
} else if ( proxyBranch.isAppSpecifiedRecordRoutingEnabled()) {
rrURI = ((SipURIImpl)proxyBranch.getRecordRouteURI()).getSipURI();
if(logger.isDebugEnabled()){
logger.debug("Using Record Route URI specified by application on ProxyBranch " + rrURI);
}
} else if(proxy.getOutboundInterface() == null) {
rrURI = JainSipUtils.createRecordRouteURI(sipFactoryImpl.getSipNetworkInterfaceManager(), clonedRequest, outboundTransport);
} else {
rrURI = ((SipURIImpl) proxy.getOutboundInterface()).getSipURI();
rrURI.setTransportParam(outboundTransport);
}
final Iterator paramNames = routeRecord.getParameterNames();
// Copy the parameters set by the user
while(paramNames.hasNext()) {
String paramName = paramNames.next();
if(!paramName.equalsIgnoreCase("transport")) {
rrURI.setParameter(paramName,
routeRecord.getParameter(paramName));
}
}
rrURI.setParameter(MessageDispatcher.RR_PARAM_SERVER_NAME,
sipFactoryImpl.getSipApplicationDispatcher().getApplicationServerId());
rrURI.setParameter(MessageDispatcher.RR_PARAM_APPLICATION_NAME,
appName);
rrURI.setParameter(MessageDispatcher.RR_PARAM_PROXY_APP,
"true");
rrURI.setParameter(MessageDispatcher.APP_ID, sipAppKey.getId());
rrURI.setLrParam();
final Address rraddress = SipFactoryImpl.addressFactory
.createAddress(null, rrURI);
final RecordRouteHeader recordRouteHeader = SipFactoryImpl.headerFactory
.createRecordRouteHeader(rraddress);
clonedRequest.addFirst(recordRouteHeader);
}
// Add path header
if(path != null && Request.REGISTER.equalsIgnoreCase(method))
{
final javax.sip.address.SipURI pathURI = JainSipUtils.createRecordRouteURI(sipFactoryImpl.getSipNetworkInterfaceManager(), clonedRequest);
final Iterator paramNames = path.getParameterNames();
// Copy the parameters set by the user
while(paramNames.hasNext()) {
String paramName = paramNames.next();
if(paramName.equals("lr")) {
pathURI.setParameter(paramName, null);
} else {
pathURI.setParameter(paramName,
path.getParameter(paramName));
}
}
final Address pathAddress = SipFactoryImpl.addressFactory
.createAddress(null, pathURI);
// Here I need to reference the header factory impl class because can't create path header otherwise
final PathHeader pathHeader = ((HeaderFactoryExt)SipFactoryImpl.headerFactory)
.createPathHeader(pathAddress);
clonedRequest.addFirst(pathHeader);
}
((SIPMessage)clonedRequest).setApplicationData(outboundTransport);
return clonedRequest;
} catch (Exception e) {
throw new RuntimeException("Problem while creating the proxied request for message " + originalRequest.getMessage(), e);
}
}
public static SipServletResponseImpl createProxiedResponse(MobicentsSipServletResponse sipServetResponse, MobicentsProxyBranch proxyBranch)
{
final Response response = (Response)sipServetResponse.getMessage();
final Response clonedResponse = (Response) response.clone();
((MessageExt)clonedResponse).setApplicationData(null);
final Transaction transaction = sipServetResponse.getTransaction();
final int status = response.getStatusCode();
// 1. Update timer C for provisional non retransmission responses
if(transaction != null && ((SIPTransaction)transaction).getMethod().equals(Request.INVITE)) {
if(Response.TRYING == status) {
proxyBranch.cancel1xxTimer();
}
if(Response.TRYING < status && status < Response.OK) {
proxyBranch.updateTimer(true, sipServetResponse.getSipApplicationSession(false));
} else if(status >= Response.OK) {
//remove it if response is final
proxyBranch.cancel1xxTimer();
proxyBranch.cancelTimer();
}
}
// 2. Remove topmost via
final Iterator viaHeaderIt = clonedResponse.getHeaders(ViaHeader.NAME);
viaHeaderIt.next();
viaHeaderIt.remove();
if (!viaHeaderIt.hasNext()) {
return null; // response was meant for this proxy
}
final ProxyImpl proxy = (ProxyImpl) proxyBranch.getProxy();
final SipFactoryImpl sipFactoryImpl = proxy.getSipFactoryImpl();
SipServletRequestImpl originalRequest =
(SipServletRequestImpl) proxy.getOriginalRequest();
if(Request.PRACK.equals(sipServetResponse.getMethod())) {
originalRequest =
(SipServletRequestImpl) proxyBranch.getPrackOriginalRequest();
}
SipServletResponseImpl newServletResponseImpl = null;
if(transaction != null && originalRequest != null) {
// non retransmission case
newServletResponseImpl = (SipServletResponseImpl) sipFactoryImpl.getMobicentsSipServletMessageFactory().createSipServletResponse(
clonedResponse,
originalRequest.getTransaction(),
originalRequest.getSipSession(),
sipServetResponse.getDialog(),
false,
sipServetResponse.isRetransmission());
} else {
// retransmission case
newServletResponseImpl = (SipServletResponseImpl) sipFactoryImpl.getMobicentsSipServletMessageFactory().createSipServletResponse(
clonedResponse,
null,
sipServetResponse.getSipSession(),
sipServetResponse.getDialog(),
false,
sipServetResponse.isRetransmission());
}
newServletResponseImpl.setOriginalRequest(originalRequest);
newServletResponseImpl.setProxiedResponse(true);
return newServletResponseImpl;
}
public static String toHexString(byte[] b) {
int pos = 0;
char[] c = new char[b.length * 2];
for (int i = 0; i < b.length; i++) {
c[pos++] = toHex[(b[i] >> 4) & 0x0F];
c[pos++] = toHex[b[i] & 0x0f];
}
return new String(c);
}
private static final char[] toHex = { '0', '1', '2', '3', '4', '5', '6',
'7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
}
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