dialogset.cxx

这是国外的resip协议栈

            if( 0 != lastRequest.get() && !(lastRequest->header(h_CSeq) == msg.header(h_CSeq)))
            {
               InfoLog(<< "Cannot create a dialog, cseq does not match initial dialog request (illegal mid-dialog fork? see 3261 14.1).");
               return;
            }
         }
         else
         {
            ErrLog(<< "Can抰 create a dialog, on a UAS response.");
            return;
         }

         int code = msg.header(h_StatusLine).statusCode();

         if (code > 100 && code < 200 && 
             (!msg.exists(h_Contacts) ||
              !msg.exists(h_To) || !msg.header(h_To).exists(p_tag)))
         {
            InfoLog ( << "Cannot create a dialog, no Contact or To tag in 1xx." );
            if (mDum.mDialogSetHandler)
            {
               mDum.mDialogSetHandler->onNonDialogCreatingProvisional(mAppDialogSet->getHandle(), msg);
            }
            return;         
         }
         // If failure response and no dialogs, create a dialog, otherwise
         else if (code >= 300 && !mDialogs.empty())
         {
            dispatchToAllDialogs(msg);
            return;
         }
      }

      DebugLog ( << "mState == " << mState << " Creating a new Dialog from msg: " << std::endl << std::endl <<msg);
      try
      {
         // !jf! This could throw due to bad header in msg, should we catch and rethrow
         dialog = new Dialog(mDum, msg, *this);
      }
      catch(BaseException& e)
      {
         InfoLog( << "Unable to create dialog: " << e.getMessage());
         if (msg.isResponse())
         {
            //don't delete on provisional responses, as FWD will eventually send a
            //valid 200
            if(mDialogs.empty() && 
               msg.header(h_StatusLine).statusCode() >= 200)
            {
               // really we should wait around 32s before deleting this
               mState = Destroying;
               mDum.destroy(this);
            }
         }
         else
         {
            // !jf! derek thinks we should destroy only on invalid CANCEL or
            // BYE, hmmphh. see draft-sparks-sipping-dialogusage-01.txt
            SharedPtr<SipMessage> response(new SipMessage);
            mDum.makeResponse(*response, msg, 400);
            mDum.send(response);
            if(mDialogs.empty())
            {
               mState = Destroying;
               mDum.destroy(this);
            }
         }
         return;
      }

      assert(mState != WaitingToEnd);
      DebugLog ( << "### Calling CreateAppDialog ###: " << std::endl << std::endl <<msg);
      AppDialog* appDialog = mAppDialogSet->createAppDialog(msg);
      dialog->mAppDialog = appDialog;
      appDialog->mDialog = dialog;
      dialog->dispatch(msg);
   }
   else
   {     
      dialog->dispatch(msg);
   }
}


ClientOutOfDialogReq*
DialogSet::findMatchingClientOutOfDialogReq(const SipMessage& msg)
{
   for (std::list<ClientOutOfDialogReq*>::iterator i=mClientOutOfDialogRequests.begin();
        i != mClientOutOfDialogRequests.end(); ++i)
   {
      if ((*i)->matches(msg))
      {
         return *i;
      }
   }
   return 0;
}

Dialog*
DialogSet::findDialog(const DialogId id)
{
   StackLog (<< "findDialog: " << id << " in " << Inserter(mDialogs));

   DialogMap::iterator i = mDialogs.find(id);
   if (i == mDialogs.end())
   {
      return 0;
   }
   else
   {
      if(i->second->isDestroying())
      {
         return 0;
      }
      else
      {
         return i->second;
      }
   }
}

void
DialogSet::end()
{
   switch(mState)
   {
      case Initial:
         mState = WaitingToEnd;
         break;
      case WaitingToEnd:
         break;         
      case ReceivedProvisional:
      {
         assert (mCreator->getLastRequest()->header(h_CSeq).method() == INVITE);
         mState = Terminating;
         // !jf! this should be made exception safe
         SharedPtr<SipMessage> cancel(Helper::makeCancel(*getCreator()->getLastRequest()));
         mDum.send(cancel);

         if (mDialogs.empty())
         {
            // !jf! if 200/INV crosses a CANCEL that was sent after receiving
            // non-dialog creating provisional (e.g. 100), then we need to:
            // Add a new state, if we receive a 200/INV in this state, ACK and
            // then send a BYE and destroy the dialogset. 
            mState = Destroying;
            mDum.destroy(this);
         }
         else
         {
            //need to lag and do last element ouside of look as this DialogSet will be
            //deleted if all dialogs are destroyed
            for (DialogMap::iterator it = mDialogs.begin(); it != mDialogs.end(); it++)
            {
               try
               {
                  it->second->cancel();
               }
               catch(UsageUseException& e)
               {
                  InfoLog (<< "Caught: " << e);
               }
            }
         }
      }            
      break;         
      case Established:
      {
         for (DialogMap::iterator it = mDialogs.begin(); it != mDialogs.end(); ++it)
         {
            try
            {
               it->second->end();
            }
            catch(UsageUseException& e)
            {
               InfoLog (<< "Caught: " << e);
            }
         }            
         mState = Terminating;
         break;
      }
      case Terminating:
      case Destroying:
         DebugLog (<< "DialogSet::end() called on a DialogSet that is already Terminating");
         //assert(0);
   }
}


ClientRegistrationHandle
DialogSet::getClientRegistration()
{
   if (mClientRegistration)
   {
      return mClientRegistration->getHandle();
   }
   else
   {
      return ClientRegistrationHandle::NotValid();
   }
}

ServerRegistrationHandle
DialogSet::getServerRegistration()
{
   if (mServerRegistration)
   {
      return mServerRegistration->getHandle();
   }
   else
   {
      return ServerRegistrationHandle::NotValid();
   }
}

ClientPublicationHandle
DialogSet::getClientPublication()
{
   if (mClientPublication)
   {
      return mClientPublication->getHandle();
   }
   else
   {
      return ClientPublicationHandle::NotValid();
   }
}

ClientRegistration*
DialogSet::makeClientRegistration(const SipMessage& response)
{
   BaseCreator* creator = getCreator();
   assert(creator);
   return new ClientRegistration(mDum, *this, creator->getLastRequest());
}

ClientPublication*
DialogSet::makeClientPublication(const SipMessage& response)
{
   BaseCreator* creator = getCreator();
   assert(creator);
   return new ClientPublication(mDum, *this, creator->getLastRequest());
}

ClientOutOfDialogReq*
DialogSet::makeClientOutOfDialogReq(const SipMessage& response)
{
   BaseCreator* creator = getCreator();
   assert(creator);
   return new ClientOutOfDialogReq(mDum, *this, *creator->getLastRequest());
}

ServerRegistration*
DialogSet::makeServerRegistration(const SipMessage& request)
{
   return new ServerRegistration(mDum, *this, request);
}

ServerOutOfDialogReq*
DialogSet::makeServerOutOfDialog(const SipMessage& request)
{
   return new ServerOutOfDialogReq(mDum, *this, request);
}

ServerPagerMessage*
DialogSet::makeServerPagerMessage(const SipMessage& request)
{
   return new ServerPagerMessage(mDum, *this, request);
}

ServerOutOfDialogReqHandle
DialogSet::getServerOutOfDialog()
{
   if (mServerOutOfDialogRequest)
   {
      return mServerOutOfDialogRequest->getHandle();
   }
   else
   {
      return ServerOutOfDialogReqHandle::NotValid();
   }
}

void DialogSet::dispatchToAllDialogs(const SipMessage& msg)
{
   if (!mDialogs.empty())
   {
      for(DialogMap::iterator it = mDialogs.begin(); it != mDialogs.end(); it++)
      {
         it->second->dispatch(msg);         
      }
   }
}

SharedPtr<UserProfile>
DialogSet::getUserProfile()
{
   if(mUserProfile.get())
   {
      return mUserProfile;
   }
   else
   {
      // If no UserProfile set then use UserProfile of the MasterProfile
      return mDum.getMasterUserProfile();
   }
}

void
DialogSet::setUserProfile(SharedPtr<UserProfile> userProfile)
{
   assert(userProfile.get());
   mUserProfile = userProfile;
}


/* ====================================================================
 * 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
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 *    and "Vovida Open Communication Application Library (VOCAL)" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
1 *    permission, please contact [e-mail].
 *
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 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
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 * ====================================================================
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 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
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