private async Task SetupSessionThenProcessCommands(SmtpConnection connection, SmtpSession session)
{
await SendGreetingAsync(connection, Greeting ?? Configuration.DefaultGreeting + " " + System.DateTime.Now.ToString("R"));
var sessionInfoParseResponder = new SmtpSessionInfoResponder(session.ResponderFactory, session.SessionInfo);
var rawLineDecoder = new RawLineDecoder(connection);
rawLineDecoder.RequestDisconnection += (s, e) =>
{
if (!e.DisconnectionExpected)
{
MailServerLogger.Instance.Warn(String.Format("Connection unexpectedly lost {0}", connection.RemoteEndPoint));
}
rawLineDecoder.Cancel();
session.Disconnect();
};
rawLineDecoder.DetectedActivity += (s, e) => session.UpdateActivity();
rawLineDecoder.ProcessLineCommand += async(s, e) =>
{
var response = sessionInfoParseResponder.ProcessLineCommand(e.Buffer);
if (response == null || !response.HasValue)
{
return;
}
if (response.ResponseCode == SmtpResponses.DisconnectResponseCode)
{
await SendResponseAsync(connection, response);
MailServerLogger.Instance.Debug(String.Format("Remote connection disconnected {0}", connection.RemoteEndPoint));
rawLineDecoder.Cancel();
await Task.Delay(100).ContinueWith(t => session.Disconnect());
return;
}
if (response == SmtpResponse.StartTLS)
{
await SendResponseAsync(connection, response);
//session.starttls();
}
// ReSharper restore PossibleUnintendedReferenceComparison
await SendResponseAsync(connection, response);
};
#pragma warning disable 4014
rawLineDecoder.ProcessCommandsAsync();
#pragma warning restore 4014
}
public void request_disconnect_if_stream_causes_IOException()
{
var readLineAsyncSource = new ReadLineAsyncThrowIOException();
var rawLineDecoder = new RawLineDecoder(readLineAsyncSource);
var disconnectRequested = false;
rawLineDecoder.RequestDisconnection += (s, e) => { disconnectRequested = true; rawLineDecoder.Cancel(); };
rawLineDecoder.ProcessCommandsAsync().Wait(100);
rawLineDecoder.Cancel();
Assert.True(disconnectRequested);
}
public void cancel_reading_single_line_command()
{
var readLineAsyncSource = new ReadLineAsyncReturnsText("command");
var rawLineDecoder = new RawLineDecoder(readLineAsyncSource);
byte[] processLineCommand = null;
rawLineDecoder.ProcessLineCommand += (s, e) => processLineCommand = e.Buffer;
rawLineDecoder.Cancel();
rawLineDecoder.ProcessCommandsAsync().Wait(100);
Assert.Null(processLineCommand);
}
public void request_disconnect_if_stream_causes_IOException()
{
var readLineAsyncSource = new ReadLineAsyncThrowIOException();
var rawLineDecoder = new RawLineDecoder(readLineAsyncSource);
var disconnectRequested = false;
rawLineDecoder.RequestDisconnection += (s, e) => { disconnectRequested = true; rawLineDecoder.Cancel(); };
rawLineDecoder.ProcessCommandsAsync().Wait(100);
rawLineDecoder.Cancel();
Assert.True(disconnectRequested);
}
public void detect_activity()
{
var readLineAsyncSource = new ReadLineAsyncReturnsText("a");
var rawLineDecoder = new RawLineDecoder(readLineAsyncSource);
var cts = new CancellationTokenSource();
cts.CancelAfter(100);
var detectedActivity = false;
rawLineDecoder.DetectedActivity += (s, e) => { detectedActivity = true; rawLineDecoder.Cancel(); };
rawLineDecoder.ProcessCommandsAsync().Wait(100);
rawLineDecoder.Cancel();
Assert.True(detectedActivity);
}
public void request_disconnect_if_null_received()
{
var readLineAsyncSource = new ReadLineAsyncAlwaysNull();
var rawLineDecoder = new RawLineDecoder(readLineAsyncSource);
var disconnectRequested = false;
rawLineDecoder.RequestDisconnection += (s, e) => { disconnectRequested = true; rawLineDecoder.Cancel(); };
var processLineCommand = false;
rawLineDecoder.ProcessLineCommand += (s, l) => processLineCommand = true;
rawLineDecoder.ProcessCommandsAsync().Wait(100);
rawLineDecoder.Cancel();
Assert.True(disconnectRequested);
Assert.False(processLineCommand);
}
private async Task SetupSessionThenProcessCommands(SmtpConnection connection, SmtpSession session)
{
await SendGreetingAsync(connection, Greeting ?? Configuration.DefaultGreeting);
var sessionInfoParseResponder = new SmtpSessionInfoResponder(session.ResponderFactory, session.SessionInfo);
var rawLineDecoder = new RawLineDecoder(connection);
rawLineDecoder.RequestDisconnection += (s, e) =>
{
if (!e.DisconnectionExpected)
{
MailServerLogger.Instance.Warn(String.Format("Connection unexpectedly lost {0}", connection.RemoteEndPoint));
}
rawLineDecoder.Cancel();
session.Disconnect();
};
rawLineDecoder.DetectedActivity += (s, e) => session.UpdateActivity();
rawLineDecoder.ProcessLineCommand += async(s, e) =>
{
// ReSharper disable PossibleUnintendedReferenceComparison
var response = sessionInfoParseResponder.ProcessLineCommand(e.Buffer);
if (response == SmtpResponse.None)
{
return;
}
if (response == SmtpResponse.Disconnect)
{
await SendResponseAsync(connection, response);
MailServerLogger.Instance.Debug(String.Format("Remote connection disconnected {0}", connection.RemoteEndPoint));
rawLineDecoder.Cancel();
session.Disconnect();
return;
}
// ReSharper restore PossibleUnintendedReferenceComparison
await SendResponseAsync(connection, response);
};
#pragma warning disable 4014
rawLineDecoder.ProcessCommandsAsync();
#pragma warning restore 4014
}
public void read_single_line_command()
{
var readLineAsyncSource = new ReadLineAsyncReturnsText("command");
var rawLineDecoder = new RawLineDecoder(readLineAsyncSource);
var cts = new CancellationTokenSource();
cts.CancelAfter(100);
byte[] processLineCommand = null;
rawLineDecoder.ProcessLineCommand += (s, e) => { processLineCommand = e.Buffer; rawLineDecoder.Cancel(); };
rawLineDecoder.ProcessCommandsAsync().Wait(100);
rawLineDecoder.Cancel();
Assert.Equal("command", Encoding.Default.GetString(processLineCommand));
}
public void detect_activity()
{
var readLineAsyncSource = new ReadLineAsyncReturnsText("a");
var rawLineDecoder = new RawLineDecoder(readLineAsyncSource);
var cts = new CancellationTokenSource();
cts.CancelAfter(100);
var detectedActivity = false;
rawLineDecoder.DetectedActivity += (s, e) => { detectedActivity = true; rawLineDecoder.Cancel(); };
rawLineDecoder.ProcessCommandsAsync().Wait(100);
rawLineDecoder.Cancel();
Assert.True(detectedActivity);
}
public void request_disconnect_if_null_received()
{
var readLineAsyncSource = new ReadLineAsyncAlwaysNull();
var rawLineDecoder = new RawLineDecoder(readLineAsyncSource);
var disconnectRequested = false;
rawLineDecoder.RequestDisconnection += (s, e) => { disconnectRequested = true; rawLineDecoder.Cancel(); };
var processLineCommand = false;
rawLineDecoder.ProcessLineCommand += (s, l) => processLineCommand = true;
rawLineDecoder.ProcessCommandsAsync().Wait(100);
rawLineDecoder.Cancel();
Assert.True(disconnectRequested);
Assert.False(processLineCommand);
}
private async Task SetupSessionThenProcessCommands(SmtpConnection connection, SmtpSession session)
{
await SendGreetingAsync(connection, Greeting ?? Configuration.DefaultGreeting);
var sessionInfoParseResponder = new SmtpSessionInfoResponder(session.ResponderFactory, session.SessionInfo);
var rawLineDecoder = new RawLineDecoder(connection);
rawLineDecoder.RequestDisconnection += (s, e) =>
{
if (!e.DisconnectionExpected)
{
MailServerLogger.Instance.Warn(String.Format("Connection unexpectedly lost {0}", connection.RemoteEndPoint));
}
rawLineDecoder.Cancel();
session.Disconnect();
};
rawLineDecoder.DetectedActivity += (s, e) => session.UpdateActivity();
rawLineDecoder.ProcessLineCommand += async (s, e) =>
{
// ReSharper disable PossibleUnintendedReferenceComparison
var response = sessionInfoParseResponder.ProcessLineCommand(e.Buffer);
if (response == SmtpResponse.None) return;
if (response == SmtpResponse.Disconnect)
{
await SendResponseAsync(connection, response);
MailServerLogger.Instance.Debug(String.Format("Remote connection disconnected {0}", connection.RemoteEndPoint));
rawLineDecoder.Cancel();
session.Disconnect();
return;
}
// ReSharper restore PossibleUnintendedReferenceComparison
await SendResponseAsync(connection, response);
};
#pragma warning disable 4014
rawLineDecoder.ProcessCommandsAsync();
#pragma warning restore 4014
}
public void read_single_line_command()
{
var readLineAsyncSource = new ReadLineAsyncReturnsText("command");
var rawLineDecoder = new RawLineDecoder(readLineAsyncSource);
var cts = new CancellationTokenSource();
cts.CancelAfter(100);
byte[] processLineCommand = null;
rawLineDecoder.ProcessLineCommand += (s, e) => { processLineCommand = e.Buffer; rawLineDecoder.Cancel(); };
rawLineDecoder.ProcessCommandsAsync().Wait(100);
rawLineDecoder.Cancel();
Assert.Equal("command", Encoding.Default.GetString(processLineCommand));
}
public void cancel_reading_single_line_command()
{
var readLineAsyncSource = new ReadLineAsyncReturnsText("command");
var rawLineDecoder = new RawLineDecoder(readLineAsyncSource);
byte[] processLineCommand = null;
rawLineDecoder.ProcessLineCommand += (s, e) => processLineCommand = e.Buffer;
rawLineDecoder.Cancel();
rawLineDecoder.ProcessCommandsAsync().Wait(100);
Assert.Null(processLineCommand);
}
private async Task SetupSessionThenProcessCommands(SmtpConnection connection, SmtpSession session)
{
await SendGreetingAsync(connection, Greeting ?? Configuration.DefaultGreeting);
var sessionInfoParseResponder = new SmtpSessionInfoResponder(session.ResponderFactory, session.SessionInfo);
var rawLineDecoder = new RawLineDecoder(connection);
rawLineDecoder.RequestDisconnection += (s, e) =>
{
if (!e.DisconnectionExpected)
{
MailServerLogger.Instance.Warn($"Connection unexpectedly lost {connection.RemoteEndPoint}");
}
rawLineDecoder.Cancel();
session.Disconnect();
};
rawLineDecoder.DetectedActivity += (s, e) => session.UpdateActivity();
rawLineDecoder.ProcessLineCommand += async (s, e) =>
{
var response = sessionInfoParseResponder.ProcessLineCommand(e.Buffer);
if (response == null || !response.HasValue) return;
if (response.ResponseCode == SmtpResponses.DisconnectResponseCode)
{
await SendResponseAsync(connection, response);
MailServerLogger.Instance.Debug($"Remote connection disconnected {connection.RemoteEndPoint}");
rawLineDecoder.Cancel();
await Task.Delay(100).ContinueWith(t => session.Disconnect());
return;
}
await SendResponseAsync(connection, response);
};
#pragma warning disable 4014
rawLineDecoder.ProcessCommandsAsync();
#pragma warning restore 4014
}
