Re: [OpenSIPStack] Simple Sample for Subscribe

[Joegen E. B. <jo...@pl...>]

Hi Martin,

Subscribe and Notify will be part of the RFC3265Session* files.  These 
files are yet to be checked into the CVS head when support for PUBLISH 
and PIDF are finished.  I am expecting new development on this subject 
within the next couple of weeks.

As for constructing and sending a SUBSCRIBE, I have attached a sample 
code that demonstrates creation and sending of SUBSCRIBE using the stack

/////////////////////////////////////////////////////////////////////////////////////////////

  SIPStack sipStack;
  sipStack.AddTransport( SIPTransport::UDP, "", 5060);

  SIPURI uri( "sip:som...@ex..." );
  PIPSocket::Address targetAddress;
  WORD targetPort;

  if( SIPTransport::Resolve( uri, targetAddress, targetPort ) )
  {
    std::cerr << uri << " does not resolve to an IP Address" << std::endl;
  }

  SIPMessage subscribe;
  BOOL willUseProxy = FALSE;

  /// create the request line
  RequestLine requestLine;
  requestLine.SetMethod( "SUBSCRIBE" );
  requestLine.SetRequestURI( uri.AsString() );
  subscribe.SetStartLine( requestLine );

  Via via;
  PIPSocket::Address viaHost;
  WORD viaPort;
  SIPTransportManager * transportManager = sipStack.GetTransportManager();
  if( !transportManager->GetListenerAddress(
    SIPTransport::UDP, targetAddress, viaHost, viaPort ))
    return;

  via.SetAddress( viaHost.AsString() );
  via.SetPort( viaPort );
  via.SetBranch( ParserTools::GenBranchParameter() );
  via.AddParameter( "rport", "" );
  subscribe.AppendVia( via );

  /// Set From header
  From from;
  SIPURI fromURI( "sip:so...@ex..." );
  from.SetURI( fromURI );
  from.AddParameter( "tag", ParserTools::GenTagParameter() );

  subscribe.SetFrom( from );

  /// Set To header
  To to;
  to.SetURI( uri );
  subscribe.SetTo( to );

  /// Set the call Id
  CallId callId;
  callId.SetHeaderBody( "call-id-123456" );
  subscribe.SetCallId( callId );

  /// Set the CSeq
  CSeq cSeq;
  cSeq.SetMethod( "SUBSCRIBE" );
  cSeq.SetSequence( 4711 );
  subscribe.SetCSeq( cSeq );

  /// Set the contact
  SIPURI contactURI = fromURI;
  contactURI.SetHost( via.GetURI().GetHost() );
  contactURI.SetPort( via.GetURI().GetPort() );

  ContactURI contact( contactURI, "My Display Name" );
  subscribe.AppendContact( contact );

  Event event( "presence" );
  subscribe.SetEvent( event );

  TransactionId transactionId;
  sipStack.FindTransactionAndAddEvent( subscribe, transactionId, FALSE );

  while( TRUE )
  {
    SIPStackEvent * event = sipStack.ReadEvent();
    if( event->GetType() == SIPStackEvent::Final )
      break;
    else if( event->GetType() == SIPStackEvent::Message )
    {
      SIPMessage msg = ((SIPMessageArrival*)event)->GetMessage();
      if( !msg.IsRequest() )
      {
        /// we got a response
        std::cout << msg << std::endl;
        if( msg.GetStatusCode() >= 200 )
          break;
      }
    }
  }

  sipStack.Terminate();

//////////////////////////////////////////////////////////////////////////////////////////////


Martin Hillmeier wrote:
> Hi,
>  
> can somebody give me a simple sample (few lines of code) how I 
> can send a SUBSCRIBE
> with opensipstack. I'm a newbie and have no idea how to do.
>  
>  
> Thanks in advance
>  
> Martin Hillmeier
> ------------------------------------------------------------------------
>
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