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package com.ericsson.ssa.container.sim;
import com.ericsson.ssa.sip.SessionTarget;
import com.ericsson.ssa.sip.SipApplicationSessionImpl;
import com.ericsson.ssa.sip.SipApplicationSessionUtil;
import com.ericsson.ssa.sip.SipServletRequestImpl;
import com.ericsson.ssa.sip.SipSessionBase;
import com.ericsson.ssa.sip.SipSessionImplBase;
import com.ericsson.ssa.sip.SipSessionManagerRegistry;
import com.ericsson.ssa.sip.URIImpl;
import com.ericsson.ssa.sip.UriUtil;
import java.io.UnsupportedEncodingException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.sip.ar.SipApplicationRouterInfo;
import javax.servlet.sip.ar.SipTargetedRequestInfo;
import javax.servlet.sip.ar.SipTargetedRequestType;
import javax.servlet.sip.Address;
import org.jvnet.glassfish.comms.util.LogUtil;
/**
* This class handles Targetted requests for ApplicationDispatcher
* or ApplicationRouter handling. This includes URI encoded session
* and Join/Replace handling.
*
* @author binod
*/
class TargettedRequestHandler {
private static final Logger m_logger = LogUtil.SIP_LOGGER.getLogger();
/**
* Section 15.11.5 of JSR 289.
*
* Basically, first Join/Replace header is considered for targetting. If it
* is not there, look for encoded sas.
*/
static SipTargetedRequestInfo get (SipServletRequestImpl request) {
try {
SipApplicationSessionImpl sas = null;
String appName = null;
SipTargetedRequestInfo stri = null;
SessionTarget st = request.getSessionTarget();
if (st != null) {
return st.getTargetedRequestInfo();
}
// XXX it is a pity that we do the SAS loading twice.
// once here to check for a targeted request and once in the Factory
// when we actually create the ss/sas for the request
// maybe we can refactor a bit, so that if we have a targeted
// request we already set the SAS that we found on the request somehow...
String uriEncodedSasId = null;
Address routeAddr = request.getInitialPoppedRoute();
if (routeAddr != null) {
uriEncodedSasId = UriUtil.getAndDecodeParameter(
routeAddr.getURI(), URIImpl.SASID_PARAM);
}
if (uriEncodedSasId == null)
uriEncodedSasId = UriUtil.getAndDecodeParameter(request.getRequestURI(), URIImpl.SASID_PARAM);
if (uriEncodedSasId != null) {
appName = SipApplicationSessionUtil.getApplicationName(uriEncodedSasId);
if (appName != null) {
sas = SipSessionManagerRegistry.getInstance().get(appName).findSipApplicationSession(uriEncodedSasId);
if (sas != null && sas.isValid()) {
if (m_logger.isLoggable(Level.FINEST)) {
m_logger.log(Level.FINEST, "targeted request for app {0} with encodedURI: {1}", new Object[] {appName, uriEncodedSasId});
}
return new SipTargetedRequestInfo(SipTargetedRequestType.ENCODED_URI, appName);
}
}
}
} catch (UnsupportedEncodingException e1) {
m_logger.log(Level.WARNING, "com.ericsson.ssa.config.SipFactoryFacade.uri_encoded_sas_corrupt", e1);
} catch (Exception ex) {
m_logger.log(Level.WARNING, "com.ericsson.ssa.config.SipFactoryFacade.uri_encoded_sas_corrupt", ex);
}
return null;
}
/**
* Returns the sas of the targetted/original request of the Join/Replace.
*
* @param request
* @param info
* @return
*/
static SipApplicationSessionImpl
getApplicationSession(SipServletRequestImpl request,
SipApplicationRouterInfo info) {
SessionTarget st = request.getSessionTarget();
if (st != null && (request.getSessionImpl() == null)) {
SipApplicationSessionImpl sas = st.getApplicationSessionImpl();
if (sas != null && sas.isValid()) {
String app = info.getNextApplicationName();
if (app != null && app.equals(sas.getApplicationName())) {
return sas;
}
}
}
return null;
}
/**
* Link the session with corresponding session that was originally targetted
* for a Join or Replace header. The session id is saved and the session is
* looked up each time.
*
* @param request
* @param s
*/
static void linkCorrespondingSession
(SipServletRequestImpl request, SipSessionBase s) {
SessionTarget st = request.getSessionTarget();
if (st != null) {
((SipSessionImplBase)s).setLinkedCorrespondingSipSessionId
(st.getSessionImpl().getId(), st.getHeader());
}
}
}