amiresponsible.cxx

这是国外的resip协议栈

#if defined(HAVE_CONFIG_H)
#include "resip/stack/config.hxx"
#endif

#include "resip/stack/SipMessage.hxx"
#include "resip/stack/Helper.hxx"
#include "repro/monkeys/AmIResponsible.hxx"
#include "repro/RequestContext.hxx"
#include "repro/Proxy.hxx"
#include <ostream>

#include "rutil/Logger.hxx"
#define RESIPROCATE_SUBSYSTEM resip::Subsystem::REPRO

using namespace resip;
using namespace repro;
using namespace std;

AmIResponsible::AmIResponsible()
{}

AmIResponsible::~AmIResponsible()
{}

Processor::processor_action_t
AmIResponsible::process(RequestContext& context)
{
   DebugLog(<< "Monkey handling request: " << *this 
            << "; reqcontext = " << context);

   resip::SipMessage& request = context.getOriginalRequest();

   assert (!request.exists(h_Routes) || 
           request.header(h_Routes).empty());
  
   // this if is just to be safe
   if (!request.exists(h_Routes) || 
       request.header(h_Routes).empty())
   {
      // !RjS! - Jason - check the RURI to see if the domain is
      // something this request is responsible for. If yes, then
      // just return Continue. If no make this call below.
      const Uri& uri = request.header(h_RequestLine).uri();
      if (!context.getProxy().isMyUri(uri))
      {
         // if this is not for a domain for which the proxy is responsible,
         // check that we relay from this sender and send to the Request URI
         
         if(!request.header(h_From).isWellFormed())
         {
            InfoLog(<<"Garbage in From header: needed for relay check.");
            resip::SipMessage response;
            Helper::makeResponse(response,context.getOriginalRequest(), 400, "Malformed From: header");
            context.sendResponse(response);
            return Processor::SkipThisChain;            
         }
         
         // !rwm! verify the AuthenticatioInfo object here.
         
         // !rwm! TODO check some kind of relay list here
         // for now, just see if the sender claims to be from one of our domains
         // send a 403 if not on the list      
         // .slg. Allow trusted nodes to relay
         if (!context.fromTrustedNode() && !context.getProxy().isMyUri(request.header(h_From).uri()))
         {
            // make 403, send, dispose of memory
            InfoLog (<< *this << ": will not relay to " << uri << " from " 
                     << request.header(h_From).uri() << ", send 403");
            resip::SipMessage response;
            Helper::makeResponse(response, context.getOriginalRequest(), 403, "Relaying Forbidden"); 
            context.sendResponse(response);
            return Processor::SkipThisChain;
         }

         // only perform relay check for out-of-dialog requests
         // !bwc! Um, then all anyone has to do to get us to be their relay
         // is throw in a spurious to-tag...
         // This smells funny. I am commenting it out.
/*         if (!request.header(h_To).exists(p_tag))
         {         
            // !rwm! verify the AuthenticatioInfo object here.
            
            // !rwm! TODO check some kind of relay list here
            // for now, just see if the sender claims to be from one of our domains
            // send a 403 if not on the list
            if(!request.header(h_From).isWellFormed())
            {
               resip::SipMessage response;
               InfoLog(<<"Garbage in From header: needed for relay check.");
               Helper::makeResponse(response,context.getOriginalRequest(), 400, "Malformed From: header"));
               context.sendResponse(response);
               return Processor::SkipThisChain;
            }

            if (!context.fromTrustedNode() && !context.getProxy().isMyUri(request.header(h_From).uri()))
            {
               // make 403, send, dispose of memory
               resip::SipMessage response;
               InfoLog (<< *this << ": will not relay to " << uri << " from " 
                        << request.header(h_From).uri() << ", send 403");
               Helper::makeResponse(response, context.getOriginalRequest(), 403, "Relaying Forbidden"); 
               context.sendResponse(response);
               return Processor::SkipThisChain;
            }
         }*/
         
         Target target(request.header(h_RequestLine).uri());
         if(!context.getTopRoute().uri().user().empty())
         {
            target.rec().mReceivedFrom = Tuple::makeTuple(context.getTopRoute().uri().user().base64decode());
         }
         context.getResponseContext().addTarget(target);

         InfoLog (<< "Sending to requri: " << request.header(h_RequestLine).uri());
         // skip the rest of the monkeys
         return Processor::SkipThisChain;	
      }
   }
   return Processor::Continue;
}

void
AmIResponsible::dump(std::ostream &os) const
{
  os << "AmIResponsible monkey" << std::endl;
}


/* ====================================================================
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