Send ParsedSoap instance to ServiceContainer, which dispatches to
    appropriate service via post, and method via action.  Response is a
    self-describing pyobj, which is passed to a SoapWriter.

    Call SendResponse or SendFault to send the reply back, appropriately.
        server -- ServiceContainer instance

def _Dispatch(ps, server, SendResponse, SendFault, post, action, nsdict={}, **kw):
    '''Send ParsedSoap instance to ServiceContainer, which dispatches to
    appropriate service via post, and method via action.  Response is a
    self-describing pyobj, which is passed to a SoapWriter.

    Call SendResponse or SendFault to send the reply back, appropriately.
        server -- ServiceContainer instance

    '''
    localURL = 'http://%s:%d%s' %(server.server_name,server.server_port,post)
    address = action
    service = server.getNode(post)
    isWSResource = False
    if isinstance(service, WSAResource):
        isWSResource = True
        service.setServiceURL(localURL)
        address = Address()
        try:
            address.parse(ps)
        except Exception, e:
            return SendFault(FaultFromException(e, 0, sys.exc_info()[2]), **kw)
        if action and action != address.getAction():
            e = WSActionException('SOAP Action("%s") must match WS-Action("%s") if specified.' \
                %(action,address.getAction()))
            return SendFault(FaultFromException(e, 0, None), **kw)
        action = address.getAction()

    if isinstance(service, ServiceInterface) is False:
        e = NoSuchService('no service at POST(%s) in container: %s' %(post,server))
        return SendFault(FaultFromException(e, 0, sys.exc_info()[2]), **kw)

    if not service.authorize(None, post, action):
        return SendFault(Fault(Fault.Server, "Not authorized"), code=401)
        #try:
        #    raise NotAuthorized()
        #except Exception, e:
            #return SendFault(FaultFromException(e, 0, None), code=401, **kw)
            ##return SendFault(FaultFromException(NotAuthorized(), 0, None), code=401, **kw)

    try:
        method = service.getOperation(ps, address)
    except Exception, e:
        return SendFault(FaultFromException(e, 0, sys.exc_info()[2]), **kw)

    try:
        if isWSResource is True: 
            request,result = method(ps, address)
        else: 
            request,result = method(ps)
    except Exception, e:
        return SendFault(FaultFromException(e, 0, sys.exc_info()[2]), **kw)

    # Verify if Signed
    service.verify(ps)

    # If No response just return.
    if result is None:
        return SendResponse('', **kw)

    sw = SoapWriter(nsdict=nsdict)
    try:
        sw.serialize(result)
    except Exception, e:
        return SendFault(FaultFromException(e, 0, sys.exc_info()[2]), **kw)

    if isWSResource is True:
        action = service.getResponseAction(ps, action)
        addressRsp = Address(action=action)
        try:
            addressRsp.setResponseFromWSAddress(address, localURL)
            addressRsp.serialize(sw)
        except Exception, e:
            return SendFault(FaultFromException(e, 0, sys.exc_info()[2]), **kw)

    # Create Signatures
    service.sign(sw)

    try:
        soapdata = str(sw)
        return SendResponse(soapdata, **kw)
    except Exception, e:
        return SendFault(FaultFromException(e, 0, sys.exc_info()[2]), **kw)