public SIPApp(TransportInfo transport)
{
log4net.Config.XmlConfigurator.Configure();
TempBuffer = new byte[4096];
transport.Socket = transport.Type == ProtocolType.Tcp ? new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp) : new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
IPEndPoint localEP = new IPEndPoint(transport.Host, transport.Port);
transport.Socket.Bind(localEP);
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
EndPoint sendEP = sender;
transport.Socket.BeginReceiveFrom(TempBuffer, 0, TempBuffer.Length, SocketFlags.None, ref sendEP, ReceiveDataCB, sendEP);
Transport = transport;
Useragents = new List<UserAgent>();
}
/// <summary>
/// Initializes a new instance of the <see cref="T:SIPLibDriver.SIPApp"/> class.
/// </summary>
/// <param name="transport">Takes in the specified trasnport object and creates the necessary sockets.</param>
public SIPApp(TransportInfo transport)
{
log4net.Config.XmlConfigurator.Configure();
this.TempBuffer = new byte[4096];
if (transport.Type == ProtocolType.Tcp)
{
transport.Socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
}
else
{
transport.Socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
}
IPEndPoint localEP = new IPEndPoint(transport.Host, transport.Port);
transport.Socket.Bind(localEP);
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
EndPoint sendEP = (EndPoint)sender;
transport.Socket.BeginReceiveFrom(TempBuffer, 0, TempBuffer.Length, SocketFlags.None, ref sendEP, new AsyncCallback(ReceiveDataCB), sendEP);
this.Transport = transport;
}
/// <summary>
/// Creates a client transaction
/// </summary>
/// <param name="stack">The SIP stack to use.</param>
/// <param name="app">The associated useragent / application.</param>
/// <param name="request">The SIP request.</param>
/// <param name="transport">A TransportInfo object representing transmission medium.</param>
/// <param name="remote">The remote.</param>
/// <returns>Transaction.</returns>
public static Transaction CreateClient(SIPStack stack, UserAgent app, Message request, TransportInfo transport,
string remote)
{
Transaction t;
if (request.Method == "INVITE")
{
t = new InviteClientTransaction(app);
}
else
{
t = new ClientTransaction(app);
}
t.Stack = stack;
t.App = app;
t.Request = request;
t.Transport = transport;
t.Remote = remote;
if (request.Headers.ContainsKey("Via") && request.First("Via").Attributes.ContainsKey("branch"))
{
t.Branch = request.First("Via").Attributes["branch"];
}
else
{
t.Branch = CreateBranch(request, false);
}
t.ID = CreateId(t.Branch, request.Method);
stack.Transactions[t.ID] = t;
if (request.Method == "INVITE")
{
((InviteClientTransaction)t).Start();
}
else
{
((ClientTransaction)t).Start();
}
return(t);
}
/// <summary>
/// Creates a server transaction
/// </summary>
/// <param name="stack">The SIP stack to use.</param>
/// <param name="app">The associated useragent / application.</param>
/// <param name="request">The SIP request.</param>
/// <param name="transport">A TransportInfo object representing transmission medium.</param>
/// <param name="tag">The tag.</param>
/// <param name="start">Not used.</param>
/// <returns>Transaction.</returns>
public static Transaction CreateServer(SIPStack stack, UserAgent app, Message request, TransportInfo transport,
string tag, Boolean start = true)
{
Transaction t;
if (request.Method == "INVITE")
{
t = new InviteServerTransaction(app);
}
else
{
t = new ServerTransaction(app);
}
t.Stack = stack;
t.App = app;
t.Request = request;
t.Transport = transport;
t.Tag = tag;
t.Remote = request.First("Via").ViaUri.HostPort();
if (request.Headers.ContainsKey("Via") && request.First("Via").Attributes.ContainsKey("branch"))
{
t.Branch = request.First("Via").Attributes["branch"];
}
else
{
t.Branch = CreateBranch(request, true);
}
t.ID = CreateId(t.Branch, request.Method);
stack.Transactions[t.ID] = t;
if (request.Method == "INVITE")
{
((InviteServerTransaction)t).Start();
}
else
{
((ServerTransaction)t).Start();
}
return(t);
}
/// <summary>
/// Method to send SIP messages. Handles appending of necessary information and routing rules.
/// </summary>
/// <param name="data">The data to send (can be a SIPMessage or string representing a SIP message).</param>
/// <param name="dest">The destination (can be a SIPURI or a string).</param>
/// <param name="transport">Optional TransportInfo object.</param>
public void Send(object data, object dest = null, TransportInfo transport = null)
{
string destinationHost = "";
int destinationPort = 0;
string finalData;
if (ProxyHost != null && ProxyPort != 0)
{
destinationHost = ProxyHost;
destinationPort = Convert.ToInt32(ProxyPort);
}
else if (dest is SIPURI)
{
SIPURI destination = (SIPURI) dest;
if (destination.Host.Length == 0)
{
Debug.Assert(false, String.Format("No host in destination URI \n{0}\n", destination));
}
else
{
destinationHost = destination.Host;
destinationPort = destination.Port;
}
}
else if (dest is string)
{
string destination = (string) (dest);
string[] parts = destination.Split(':');
destinationHost = parts[0];
destinationPort = Convert.ToInt32(parts[1]);
}
if (data is Message)
{
Message m = (Message) data;
//TODO: Fix stripping of record-route
//if (m.Headers.ContainsKey("Record-Route")) m.Headers.Remove("Record-Route");
//if (!Helpers.IsRequest(m) && m.Is2XX() && m.First("CSeq").Method.Contains("INVITE"))
//{
// m.Headers.Remove("Record-Route");
//}
if (Helpers.IsRequest(m) && m.Method == "ACK")
{
_log.Info("Sending ACK");
}
m.InsertHeader(new Header(_userAgentName, "User-Agent"));
if (m.Headers.ContainsKey("Route"))
{
}
else
{
if (ServiceRoute != null)
{
if (
!(Helpers.IsRequest(m) &&
((m.Method.ToLower().Contains("register") ||
(m.Method.ToLower().Contains("ack") || (m.Method.ToLower().Contains("bye")))))))
{
m.Headers["Route"] = ServiceRoute;
}
}
else if (!string.IsNullOrEmpty(ProxyHost))
{
m.InsertHeader(new Header("<sip:" + ProxyHost + ":" + ProxyPort + ">", "Route"));
}
}
if (!string.IsNullOrEmpty(m.Method))
{
// TODO: Multicast handling of Maddr
}
else if (m.ResponseCode > 0)
{
if (dest == null)
{
destinationHost = m.Headers["Via"][0].ViaUri.Host;
destinationPort = m.Headers["Via"][0].ViaUri.Port;
}
}
////TODO FIX HACK
//string route_list = "";
//if (m.headers.ContainsKey("Route"))
//{
//foreach (Header h in m.headers["Route"])
//{
// route_list = route_list + h.value.ToString() + ",";
//}
//route_list = route_list.Remove(route_list.Length - 1);
//Header temp = new Header(route_list, "Temp");
//temp.value = route_list;
//temp.name = "Route";
//m.headers.Remove("Route");
//m.insertHeader(temp);
//}
finalData = m.ToString();
}
else
{
finalData = (string) data;
}
App.Send(finalData, destinationHost, destinationPort, this);
}
/// <summary>
/// Method to send SIP messages. Handles appending of necessary information and routing rules.
/// </summary>
/// <param name="data">The data to send (can be a SIPMessage or string representing a SIP message).</param>
/// <param name="dest">The destination (can be a SIPURI or a string).</param>
/// <param name="transport">Optional TransportInfo object.</param>
public void Send(object data, object dest = null, TransportInfo transport = null)
{
string destinationHost = "";
int destinationPort = 0;
string finalData;
if (ProxyHost != null && ProxyPort != 0)
{
destinationHost = ProxyHost;
destinationPort = Convert.ToInt32(ProxyPort);
}
else if (dest is SIPURI)
{
SIPURI destination = (SIPURI)dest;
if (destination.Host.Length == 0)
{
Debug.Assert(false, String.Format("No host in destination URI \n{0}\n", destination));
}
else
{
destinationHost = destination.Host;
destinationPort = destination.Port;
}
}
else if (dest is string)
{
string destination = (string)(dest);
string[] parts = destination.Split(':');
destinationHost = parts[0];
destinationPort = Convert.ToInt32(parts[1]);
}
if (data is Message)
{
Message m = (Message)data;
//TODO: Fix stripping of record-route
//if (m.Headers.ContainsKey("Record-Route")) m.Headers.Remove("Record-Route");
//if (!Helpers.IsRequest(m) && m.Is2XX() && m.First("CSeq").Method.Contains("INVITE"))
//{
// m.Headers.Remove("Record-Route");
//}
if (Helpers.IsRequest(m) && m.Method == "ACK")
{
_log.Info("Sending ACK");
}
m.InsertHeader(new Header(_userAgentName, "User-Agent"));
if (m.Headers.ContainsKey("Route"))
{
}
else
{
if (ServiceRoute != null)
{
if (
!(Helpers.IsRequest(m) &&
((m.Method.ToLower().Contains("register") ||
(m.Method.ToLower().Contains("ack") || (m.Method.ToLower().Contains("bye")))))))
{
m.Headers["Route"] = ServiceRoute;
}
}
else if (!string.IsNullOrEmpty(ProxyHost))
{
m.InsertHeader(new Header("<sip:" + ProxyHost + ":" + ProxyPort + ">", "Route"));
}
}
if (!string.IsNullOrEmpty(m.Method))
{
// TODO: Multicast handling of Maddr
}
else if (m.ResponseCode > 0)
{
if (dest == null)
{
destinationHost = m.Headers["Via"][0].ViaUri.Host;
destinationPort = m.Headers["Via"][0].ViaUri.Port;
}
}
////TODO FIX HACK
//string route_list = "";
//if (m.headers.ContainsKey("Route"))
//{
//foreach (Header h in m.headers["Route"])
//{
// route_list = route_list + h.value.ToString() + ",";
//}
//route_list = route_list.Remove(route_list.Length - 1);
//Header temp = new Header(route_list, "Temp");
//temp.value = route_list;
//temp.name = "Route";
//m.headers.Remove("Route");
//m.insertHeader(temp);
//}
finalData = m.ToString();
}
else
{
finalData = (string)data;
}
App.Send(finalData, destinationHost, destinationPort, this);
}
