protected BasicChannel(EventMessage eventMessage, EventSocket eventSocket)
{
Log = LogProvider.GetLogger(GetType());
UUID = eventMessage.UUID;
lastEvent = eventMessage;
this.eventSocket = eventSocket;
Disposables.Add(
eventSocket.Events
.Where(x => x.UUID == UUID)
.Subscribe(
e =>
{
lastEvent = e;
if (e.EventName == EventName.ChannelAnswer)
{
Log.Info(() => "Channel [{0}] Answered".Fmt(UUID));
}
if (e.EventName == EventName.ChannelHangup)
{
Log.Info(() => "Channel [{0}] Hangup Detected [{1}]".Fmt(UUID, e.HangupCause));
HangupCallBack(e);
}
}));
}
protected internal ConferenceEvent(EventMessage other) : base(other)
{
if (other.EventName != EventName.Custom && other.Headers[HeaderNames.EventSubclass] != "conference::maintenance")
{
throw new InvalidOperationException(
"Expected event of type Custom with SubClass conference::maintainance, got {0} instead".Fmt(other.EventName));
}
}
/// <summary>
/// Sends the connect command to FreeSwitch, populating the <see cref="ChannelData"/> property on reply.
/// </summary>
public async Task<EventMessage> Connect()
{
var response = await SendCommand("connect");
ChannelData = new EventMessage(response);
Messages.FirstAsync(m => m.ContentType == ContentTypes.DisconnectNotice)
.Subscribe(dn => Log.Trace(() => "Channel {0} Disconnect Notice {1} received.".Fmt(ChannelData.UUID, dn.BodyText)));
return ChannelData;
}
/// <summary>
/// Sends the connect command to FreeSwitch, populating the <see cref="ChannelData"/> property on reply.
/// </summary>
public Task<EventMessage> Connect()
{
return SendCommand("connect").ToObservable().Select(reply => new EventMessage(reply)).Do(
x =>
{
ChannelData = x;
Messages.FirstAsync(m => m.ContentType == ContentTypes.DisconnectNotice)
.Do(dn => Log.Trace(() => "Channel {0} Disconnect Notice {1} received.".Fmt(ChannelData.UUID, dn.BodyText)));
}).ToTask();
}
internal PlayResult(EventMessage eventMessage) : base(eventMessage)
{
if (eventMessage != null)
{
Success = ResponseText == "FILE PLAYED"; //eventMessage.Headers[HeaderNames.ApplicationResponse] == "FILE PLAYED";
}
else
{
Success = false;
}
}
internal ReadResult(EventMessage eventMessage, string channelVariable) : base(eventMessage)
{
if (eventMessage != null)
{
Digits = eventMessage.GetVariable(channelVariable);
var readResult = eventMessage.GetVariable("read_result");
Result = !string.IsNullOrEmpty(readResult)
? (ReadResultStatus)Enum.Parse(typeof(ReadResultStatus), readResult, true)
: ReadResultStatus.Failure;
}
else
{
Result = ReadResultStatus.Failure;
}
Success = Result == ReadResultStatus.Success;
}
protected Channel(EventMessage eventMessage, EventSocket eventSocket) : base(eventMessage, eventSocket)
{
//populate empty bridge status
Bridge = new BridgeStatus(false, null);
ExitOnHangup = true;
Task.WhenAll(
new[]
{
eventSocket.SubscribeEvents(), //subscribe to minimum events
eventSocket.Filter(HeaderNames.UniqueId, UUID), //filter for our unique id (in case using full socket mode)
eventSocket.Filter(HeaderNames.OtherLegUniqueId, UUID) //filter for channels bridging to our unique id
}).ContinueWith(
t =>
{
if (t.IsFaulted && t.Exception != null)
{
Log.ErrorException("Channel [{0}] - failed to configure outbound socket for Channel usage".Fmt(UUID), t.Exception.InnerException);
return;
}
this.InitializeSubscriptions();
});
}
protected internal BridgedChannel(EventMessage eventMessage, EventSocket eventSocket) : base(eventMessage, eventSocket)
{
}
internal BackgroundJobResult(EventMessage basicMessage)
{
Headers = basicMessage.Headers;
BodyText = basicMessage.BodyText;
}
private OriginateResult(EventMessage channelEvent)
{
ChannelData = channelEvent;
Success = channelEvent.AnswerState != AnswerState.Hangup;
HangupCause = channelEvent.HangupCause;
}
protected internal AttendedTransferResult(EventMessage eventMessage) : base(eventMessage)
{
if (eventMessage == null)
{
Status = AttendedTransferResultStatus.Failed;
return;
}
var lastBridgeHangupCause = eventMessage.GetVariable("last_bridge_hangup_cause").HeaderToEnumOrNull<HangupCause>();
var originateDisposition = eventMessage.GetVariable("originate_disposition").HeaderToEnumOrNull<HangupCause>();
var xferResult = eventMessage.GetVariable("att_xfer_result");
var xferUuids = eventMessage.GetVariable("xfer_uuids");
//sometimes xferResult is populated, sometimes it isn't!
if (xferResult != null && xferResult == "success")
{
if (eventMessage.AnswerState == AnswerState.Answered)
{
//b-leg is still connected, let's see if we're in a three-way
if (xferUuids != null)
{
Status = AttendedTransferResultStatus.Threeway;
HangupCause = HangupCause.Success;
}
else if (lastBridgeHangupCause == HangupCause.NormalClearing)
{
//the c-leg hung up, b-leg is still bridged to a-leg
Status = AttendedTransferResultStatus.Failed;
HangupCause = HangupCause.CallRejected;
}
}
else
{
//b-leg is no longer connected, let's assume success
Status = AttendedTransferResultStatus.Transferred;
HangupCause = HangupCause.Success;
}
}
else if (originateDisposition != null)
{
//xferResult wasn't populated, here be dragons..
//let's try to figure out what happened
HangupCause = originateDisposition.Value;
if (HangupCause == HangupCause.Success)
{
if (eventMessage.AnswerState == AnswerState.Hangup)
{
//b-leg has hungup, we've transferred to the c-leg
Status = AttendedTransferResultStatus.Transferred;
}
else
{
//b-leg is still connected
Status = AttendedTransferResultStatus.Failed;
HangupCause = HangupCause.CallRejected;
}
}
else if (HangupCause == HangupCause.AttendedTransfer)
{
//we'll get here if the b-leg hung up while the c-leg was ringing
//in this case, FreeSwitch will keep ringing the c-leg
//if the c-leg answers, a-leg will be bridged to the c-leg
//if the c-leg does not answer, then FreeSwitch will attempt to ring
//back the b-leg and bridge the a-leg to the b-leg WITH A NEW CHANNEL.
Status = AttendedTransferResultStatus.AttendedTransfer;
}
}
}
public void it_should_parse_event_messages(string input, EventName eventName)
{
var parser = new Parser();
var rawInput = input.Replace("\r\n", "\n") + "\n\n";
foreach (char c in rawInput)
{
parser.Append(c);
}
Assert.True(parser.Completed);
var eventMessage = new EventMessage(parser.ExtractMessage());
Assert.NotNull(eventMessage);
Assert.Equal(eventName, eventMessage.EventName);
Console.WriteLine(eventMessage.ToString());
}
