MessageFilterRule.cxx

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#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
 
#include "resip/stack/MessageFilterRule.hxx"
#include "resip/stack/Helper.hxx"
#include "resip/stack/SipMessage.hxx"
#include "resip/stack/TransactionUser.hxx"
#include "rutil/Logger.hxx"
 
#define RESIPROCATE_SUBSYSTEM resip::Subsystem::TRANSACTION
 
using namespace resip;
using namespace std;
 
 
MessageFilterRule::MessageFilterRule(SchemeList    schemeList,
                                     HostpartTypes hostpartType,
                                     MethodList    methodList,
                                     EventList     eventList)
  : mSchemeList(schemeList),
    mHostpartMatches(hostpartType),
    mMethodList(methodList),
    mEventList(eventList),
    mTransactionUser(0)
{
}
 
MessageFilterRule::MessageFilterRule(SchemeList    schemeList,
                                     HostpartList  hostpartList,
                                     MethodList    methodList,
                                     EventList     eventList)
  : mSchemeList(schemeList),
    mHostpartMatches(List),
    mHostpartList(hostpartList),
    mMethodList(methodList),
    mEventList(eventList),
    mTransactionUser(0)
{
}
 
bool
MessageFilterRule::matches(const SipMessage &msg) const
{
   const Data scheme = msg.header(h_RequestLine).uri().scheme();
 
   if (!schemeIsInList(scheme))
   {
      DebugLog(<< "  MessageFilterRule::matches: Scheme is not in list. Rule does not match.");
      return false;
   }
   
   if (msg.header(h_RequestLine).uri().scheme() != Symbols::Tel &&
       msg.header(h_RequestLine).uri().scheme() != Symbols::Urn)
   {
      // !rwm! Should be hostport, not host
      if (!hostIsInList( msg.header(h_RequestLine).uri().host()))
      {
         DebugLog(<< "  MessageFilterRule::matches: Host is not in list. Rule does not match.");
         return false;
      }
   }
 
   MethodTypes method = msg.header(h_RequestLine).method();
   if (!methodIsInList(method))
   {
      DebugLog(<< "  MessageFilterRule::matches: Method is not in list. Rule does not match.");
      return false;
   }
   else
   {
      switch(method)
      {
         case SUBSCRIBE:
         case NOTIFY:
         case PUBLISH:      
            if (!eventIsInList(msg))
            {
               DebugLog(<< "  MessageFilterRule::matches: Event is not in list. Rule does not match.");
               return false;
            }
            break;
         default:
         break;
      }
   }
 
   return true;
}
 
bool
MessageFilterRule::schemeIsInList(const Data& scheme) const
{
   // Emtpy list means "sip or sips"
   if (mSchemeList.empty())
   {
      return (scheme == Symbols::Sip || scheme == Symbols::Sips ||
              scheme == Symbols::Tel || scheme == Symbols::Urn);
   }
 
   // step through mSchemeList looking for supported schemes
   for (SchemeList::const_iterator i = mSchemeList.begin();
        i != mSchemeList.end(); i++)
   {
      if (scheme == *i)
      {
         return true;
      }
      
   }
   return false;
}
 
bool
MessageFilterRule::methodIsInList(MethodTypes method) const
{
   // empty list means "match all"
   if (mMethodList.empty())
   {
      return true;
   }
 
   for (MethodList::const_iterator i = mMethodList.begin();
        i != mMethodList.end(); i++)
   {
      if (method == *i)
      {
         return true;
      }
      
   }
   return false;
}
 
bool
MessageFilterRule::eventIsInList(const SipMessage& msg) const
{
   // empty list means "match all"
   if (mEventList.empty())
   {
      return true;
   }
 
   if (!msg.exists(h_Event))
   {
      return false;
   }
   
   Data event = msg.header(h_Event).value();   
 
   for (EventList::const_iterator i = mEventList.begin();
        i != mEventList.end(); i++)
   {
      if (event == *i)
      {
         return true;
      }
      
   }
   return false;
}
 
bool
MessageFilterRule::hostIsInList(const Data& hostpart) const
{
   switch(mHostpartMatches)
   {
      case Any:
         return true;
      case HostIsMe:
           // !abr! Waiting for TU support for this method.
           // return (tu.hostIsMe(hostpart));
           return false;
         break;
      case DomainIsMe:
           if(mTransactionUser)
           {
              return mTransactionUser->isMyDomain(hostpart);
           }
           return false;
         break;
      case List:
         // walk the list for specific matches
         for (HostpartList::const_iterator i = mHostpartList.begin() ; 
              i != mHostpartList.end() ; ++i)
         {
            if (isEqualNoCase(*i, hostpart))
               return true;
         }
         break;
      default:
         break;
   }
   return false;
}
 
 
/* ====================================================================
 * The Vovida Software License, Version 1.0 
 * 
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
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 *    distribution.
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