// This is the FreeSWITCH APP interface callback handler which is bound to "coreclr" APP commands
private static void NativeAPPHandler(IntPtr sessionptr, string data)
{
using ManagedSession session = new ManagedSession(new SWIGTYPE_p_switch_core_session_t(sessionptr, false));
string args = data;
if (!ParseArgument(ref args, out string command, ' '))
{
Log.WriteLine(LogLevel.Error, "Missing Managed APP");
return;
}
Log.WriteLine(LogLevel.Info, "Managed APP: {0} {1}", command, args);
if (!sAPPRegistry.TryGetValue(command.ToLower(), out APPCallback callback))
{
Log.WriteLine(LogLevel.Error, "Managed APP does not exist");
return;
}
try
{
callback(args, session);
}
catch (Exception)
{
// TODO: Log more of the exception data out
Log.WriteLine(LogLevel.Error, "Managed APP exception");
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="session">The low-level FreeSWITCH session.</param>
internal CallSession(ManagedSession session)
{
this.session = session;
this.collectedDigits = string.Empty;
this.AutoHangup = true;
// Setup the low-level event handlers.
session.DtmfReceivedFunction =
(digit, duration) =>
{
if (DtmfReceived == null)
{
return(string.Empty);
}
var args = new DtmfInputEventArgs(digit, duration);
DtmfReceived(this, args);
if (args.Break)
{
return("break");
}
else
{
return(string.Empty);
}
};
session.EventReceivedFunction =
(evt) =>
{
if (EventReceived != null)
{
EventReceived(this, new SwitchEventArgs(new SwitchEvent(evt.InternalEvent)));
}
return(string.Empty);
};
session.HangupFunction =
() =>
{
if (HangupEvent != null)
{
HangupEvent(this, new HangupEventArgs(this.HangupReason, this.CallDetails));
}
};
}
// Managed API for loading user assemblies and reflecting on attributes to register callbacks
private static string LoadAPI(string args, ManagedSession session)
{
string path = Path.GetFullPath(args);
if (!Path.HasExtension(path))
{
path = Path.ChangeExtension(path, ".dll");
}
if (!File.Exists(path))
{
Log.WriteLine(LogLevel.Error, "File not found: {0}", path);
return("-ERROR File not found");
}
// TODO: Load the assembly, kick off reflection scan for relevant attributes, add API's to sAPIRegistry
return("+OK " + path);
}
// This is the FreeSWITCH API interface callback handler which is bound to "coreclr" API commands
private static int NativeAPIHandler(string command, IntPtr sessionptr, IntPtr streamptr)
{
using ManagedSession session = new ManagedSession(new SWIGTYPE_p_switch_core_session_t(sessionptr, false));
using Stream stream = new Stream(new SWIGTYPE_p_switch_stream_handle_t(streamptr, false));
string args = command;
if (!ParseArgument(ref args, out command, ' '))
{
Log.WriteLine(LogLevel.Error, "Missing Managed API");
stream.Write("-ERROR Missing Managed API");
return(0);
}
Log.WriteLine(LogLevel.Info, "Managed API: {0} {1}", command, args);
if (!sAPIRegistry.TryGetValue(command.ToLower(), out APICallback callback))
{
Log.WriteLine(LogLevel.Error, "Managed API does not exist");
stream.Write("-ERROR Managed API does not exist");
return(0);
}
string result = null;
try
{
result = callback(args, session);
}
catch (Exception)
{
// TODO: Log more of the exception data out
Log.WriteLine(LogLevel.Error, "Managed API exception");
result = "-ERROR Managed API exception";
}
if (result != null)
{
stream.Write(result);
}
return(0);
}
