/// Builds a default header if it doesn't exist.
void SIPPacket::EnsureHeader(){
if (header.Size() != 0)
return;
// Assign default-sender if not done already.
if (sender == NULL)
SetSender(defaultSender);
// Build it.
BuildHeader();
}
INode::INode(const StringRef& name/*=StringRef::Empty*/, const IEventArg& e /*= IEventArg::Empty*/)
:IRenderable(name), DefaultRunnable(RunningState::None)
{
Start();
SetSender(this);
}
cyDraw::cyDraw(plKey sender, plKey recvr)
{
SetSender(sender);
AddRecvr(recvr);
fNetForce = false;
}
// =============================================================================================================================================================
/// Default contructor that builds a header using relevant data from the packet to which it is replying.
SIPReplyPacket::SIPReplyPacket(SIPPacket * packetToReply, int type)
: SIPPacket(type){
SetSender(defaultSender);
assert(defaultSender);
cSeq = packetToReply->cSeq;
}
// Ref: http://tools.ietf.org/html/rfc3261#section-24
// Builds the header using the previously set parameters. Call this again if you change any of them!
void SIPPacket::BuildHeader(){
// Make sure body is set before calculating header-parameters!
if (!bodySet){
std::cout<< "ERROR: Body not set before calling SIPPacket::BuildHeader! Fix this, yo.";
assert(bodySet);
}
// Set default sender (us) if no sender already specified.
if (!sender)
sender = defaultSender;
if (!senderSet){
SetSender(sender);
}
if (!recipientSet){
SetRecipient(recipient);
}
header.Clear();
String typeName = PacketTypeName();
switch(type){
case SIP_REGISTER:
case SIP_INFO:
case SIP_INVITE:
case SIP_BYE:
case SIP_ACK:
case SIP_CANCEL:
case SIP_OPTIONS:
case SIP_SUBSCRIBE:
case SIP_NOTIFY:
header.Add(typeName+" sip:"+recipientAddress+" SIP/"+SIPVersion);
break;
case SIP_OK:
case SIP_BAD_REQUEST:
header.Add("SIP/"+String(SIPVersion)+" "+typeName);
break;
default:
std::cout<<"Unrecognized packet type: "<<type<<" typeName: "<<typeName;
assert(false && "Unrecognized packet-type when setting first row in SIP message header. Add a new case for it?");
break;
}
String toString = "To: "+recipientData;
/// Only do this if the recipient is known.
SIPSessionData * recipientSessionData = NULL;
if (recipient){
recipientSessionData = (SIPSessionData*)recipient->GetSessionData(SessionType::SIP);
if (recipientSessionData->theirTag.Length()){
toString.Add(";tag="+recipientSessionData->theirTag);
}
}
header.Add(toString);
String senderString = "From: "+senderData;
if (recipientSessionData){
if (recipientSessionData->ourTag.Length()){
senderString.Add(";tag="+recipientSessionData->ourTag);
}
}
header.Add(senderString);
// TODO: Add Call-ID ?
// Add CSeq
if (cSeq.Length())
header.Add("CSeq: "+cSeq);
// Script-type, for Subscribe messages
if (event.Length()){
header.Add("Script: "+event);
}
// TODO: Add Contact
if (expirationTime >= 0)
header.Add("Expires: "+String::ToString(expirationTime));
int bodyLength = BodyLength();
if (bodyLength > 0){
if (!contentType.Length())
contentType = "application/customP2PMediaProtocol";
header.Add("Content-Type: "+contentType);
}
header.Add("Content-Length: "+String::ToString(bodyLength));
headerSet = true;
}