/// <summary>
/// Performs originate. Returns ManagedSession on success, null on failure.
/// onHangup is called as a state handler, after the channel is truly hungup (CS_REPORTING).
/// </summary>
public static ManagedSession OriginateHandleHangup(CoreSession aLegSession, string destination, TimeSpan timeout, Action <ManagedSession> onHangup)
{
var bleg = new ManagedSession();
bleg.originate_ondestroy_delegate = bleg.originate_ondestroy_method;
bleg.originate_onhangup_delegate = CreateStateHandlerDelegate(bleg, sess_b => {
if (onHangup != null)
{
onHangup(sess_b);
}
});
bleg.originate_table = new switch_state_handler_table();
bleg.originate_table.on_reporting = WrapStateHandlerDelegate(bleg.originate_onhangup_delegate);
bleg.originate_table.on_destroy = WrapStateHandlerDelegate(bleg.originate_ondestroy_delegate);
bleg.originate_table.flags = (int)switch_state_handler_flag_t.SSH_FLAG_STICKY;
var res = 0 == bleg.originate(aLegSession, destination, (int)timeout.TotalSeconds, bleg.originate_table);
bleg.originate_keepalive_handle = GCHandle.Alloc(bleg, GCHandleType.Normal); // Prevent GC from eating the bleg
if (res)
{
bleg.Initialize();
return(bleg);
}
else
{
// Dispose to free the lock
// The bleg lives on with its unmanaged memory freed
// Until CS_DESTROY gets called
bleg.Dispose();
return(null);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="VoiceQuestionnaireService"/> class.
/// </summary>
/// <param name="session">The session.</param>
/// <param name="invalidAudioFile">The invalid audio file.</param>
/// <param name="phraseStart">The phrase start.</param>
/// <param name="recordingFolder">The recording folder.</param>
public VoiceQuestionnaireService(ManagedSession session,
string invalidAudioFile, string phraseStart, string recordingFolder)
{
Session = session;
InvalidAudioFile = invalidAudioFile;
PhraseStart = phraseStart;
RecordingFolder = recordingFolder;
}
// Creating these function pointers is a two-stage process.
// The delegate needs to be stored so it doesn't get GC'd, so we can't just return GetFunctionPointerForDelegate right away.
/// <summary>Wraps a nice handler into a delegate suitable for reverse P/Invoke. This only currently works well for hangup/reporting handlers.</summary>
public static switch_state_handler_t_delegate CreateStateHandlerDelegate(ManagedSession sess, Action <ManagedSession> handler)
{
// We create a ManagedSession on top of the session so callbacks can use it "nicely"
// Then we sort of dispose it.
switch_state_handler_t_delegate del = ptr => {
handler(sess);
return(switch_status_t.SWITCH_STATUS_SUCCESS);
};
return(del);
}
private void UnParkCall(ManagedSession session)
{
string parkingSpace = session.GetVariable("destination_number");
string parkedCallUuid =ParkingLot.ParkedCalls[parkingSpace];
session.Answer();
session.sleep(500, 0);
session.SetTtsParameters("cepstral", "allison");
session.Speak("Connecting you.");
session.Execute("intercept", string.Format("{0}", parkedCallUuid));
ParkingLot.ParkedCalls.Remove(parkingSpace);
}
private void ParkCall(ManagedSession session, string parkingSpace)
{
ParkingLot.ParkedCalls[parkingSpace] = session.uuid;
session.HangupFunction = () => HandleHangup(parkingSpace);
Log.WriteLine(LogLevel.Info, string.Format("Park: {0}.", parkingSpace));
session.Answer();
session.sleep(500, 0);
session.SetTtsParameters("cepstral", "allison");
session.Speak("Holding on extension " + parkingSpace+"<break time='1s' />");
session.sleep(500, 0);
session.StreamFile("local_stream://moh", -1);
}
// Creating these function pointers is a two-stage process.
// The delegate needs to be stored so it doesn't get GC'd, so we can't just return GetFunctionPointerForDelegate right away.
/// <summary>Wraps a nice handler into a delegate suitable for reverse P/Invoke. This only currently works well for hangup/reporting handlers.</summary>
public static switch_state_handler_t_delegate CreateStateHandlerDelegate(Action <ManagedSession> handler)
{
// We create a ManagedSession on top of the session so callbacks can use it "nicely"
// Then we sort of dispose it.
switch_state_handler_t_delegate del = ptr => {
using (var sess = new ManagedSession(new SWIGTYPE_p_switch_core_session(ptr, false))) {
handler(sess);
return(switch_status_t.SWITCH_STATUS_SUCCESS);
}
};
return(del);
}
/// <summary>Initializes the native ManagedSession. Called after Originate completes successfully .</summary>
internal void Initialize()
{
if (allocated == 0)
{
throw new InvalidOperationException("Cannot initialize a ManagedSession until it is allocated (originated successfully).");
}
// P/Invoke generated function pointers stick around until the delegate is collected
// By sticking the delegates in fields, their lifetime won't be less than the session
// So we don't need to worry about GCHandles and all that....
// Info here: http://blogs.msdn.com/cbrumme/archive/2003/05/06/51385.aspx
this._inputCallbackRef = inputCallback;
this._hangupCallbackRef = hangupCallback;
InitManagedSession(ManagedSession.getCPtr(this).Handle, this._inputCallbackRef, this._hangupCallbackRef);
this._variables = new ChannelVariables(this);
}
public bool Execute(string args, IntPtr sessionHandle)
{
IncreaseUse();
try {
using (var session = new Native.ManagedSession(new Native.SWIGTYPE_p_switch_core_session(sessionHandle, false))) {
session.Initialize();
session.SetAutoHangup(false);
try {
var plugin = createPlugin();
var context = new AppContext(args, session);;
plugin.Run(context);
return(true);
} catch (Exception ex) {
LogException("Run", Name, ex);
return(false);
}
}
} finally {
DecreaseUse();
}
}
public void Run(AppContext context)
{
Session = context.Session;
Session.Answer();
Session.SetTtsParameters("flite", "kal");
Session.sleep(1000, 0);
var questionnaireService = new VoiceQuestionnaireService(
Session, InvalidAudioFile,
PhraseStart, RecordLocation);
var phoneNumber = questionnaireService
.AskAndVerifyQuestion(
9, 11, 3, 10000, "#", "enter_phone_number",
x => "you_entered_phone_number:" + x, "\\d+", _ => true);
var nameRecordingFile = questionnaireService
.AskRecordAndVerifyQuestion(
"record_name", x => "verify_recording:" + x,
string.Format("{0}_{1}_{2}", Session.Uuid, DateTime.UtcNow.ToString("MMddyyyy"), phoneNumber));
}
internal ChannelVariables(ManagedSession session) {
this.sess = session;
}
/// <summary>
/// Performs originate. Returns ManagedSession on success, null on failure.
/// onHangup is called as a state handler, after the channel is truly hungup (CS_REPORTING).
/// </summary>
public static ManagedSession OriginateHandleHangup(CoreSession aLegSession, string destination, TimeSpan timeout, Action<ManagedSession> onHangup) {
var bleg = new ManagedSession();
bleg.originate_ondestroy_delegate = bleg.originate_ondestroy_method;
bleg.originate_onhangup_delegate = CreateStateHandlerDelegate(sess_b => {
if (onHangup != null) {
onHangup(sess_b);
}
});
bleg.originate_table = new switch_state_handler_table();
bleg.originate_table.on_reporting = WrapStateHandlerDelegate(bleg.originate_onhangup_delegate);
bleg.originate_table.on_destroy = WrapStateHandlerDelegate(bleg.originate_ondestroy_delegate);
bleg.originate_table.flags = (int)switch_state_handler_flag_t.SSH_FLAG_STICKY;
var res = 0 == bleg.originate(aLegSession, destination, (int)timeout.TotalSeconds, bleg.originate_table);
bleg.originate_keepalive_handle = GCHandle.Alloc(bleg, GCHandleType.Normal); // Prevent GC from eating the bleg
if (res) {
bleg.Initialize();
return bleg;
} else {
// Dispose to free the lock
// The bleg lives on with its unmanaged memory freed
// Until CS_DESTROY gets called
bleg.Dispose();
return null;
}
}
// Creating these function pointers is a two-stage process.
// The delegate needs to be stored so it doesn't get GC'd, so we can't just return GetFunctionPointerForDelegate right away.
/// <summary>Wraps a nice handler into a delegate suitable for reverse P/Invoke. This only currently works well for hangup/reporting handlers.</summary>
public static switch_state_handler_t_delegate CreateStateHandlerDelegate(Action<ManagedSession> handler) {
// We create a ManagedSession on top of the session so callbacks can use it "nicely"
// Then we sort of dispose it.
switch_state_handler_t_delegate del = ptr => {
using (var sess = new ManagedSession(new SWIGTYPE_p_switch_core_session(ptr, false))) {
handler(sess);
return switch_status_t.SWITCH_STATUS_SUCCESS;
}
};
return del;
}
// Creating these function pointers is a two-stage process.
// The delegate needs to be stored so it doesn't get GC'd, so we can't just return GetFunctionPointerForDelegate right away.
/// <summary>Wraps a nice handler into a delegate suitable for reverse P/Invoke. This only currently works well for hangup/reporting handlers.</summary>
public static switch_state_handler_t_delegate CreateStateHandlerDelegate(ManagedSession sess, Action<ManagedSession> handler)
{
// We create a ManagedSession on top of the session so callbacks can use it "nicely"
// Then we sort of dispose it.
switch_state_handler_t_delegate del = ptr => {
handler(sess);
return switch_status_t.SWITCH_STATUS_SUCCESS;
};
return del;
}
internal ChannelVariables(ManagedSession session)
{
this.sess = session;
}
public AppContext(string arguments, Native.ManagedSession session)
{
this.arguments = arguments;
this.session = session;
}
internal static HandleRef getCPtr(ManagedSession obj)
{
return (obj == null) ? new HandleRef(null, IntPtr.Zero) : obj.swigCPtr;
}
public AppContext(string arguments, Native.ManagedSession session)
{
this.arguments = arguments;
this.session = session;
}
