private static async Task SendResponseAsync(SmtpConnection connection, SmtpResponse response)
{
LogResponse(response);
foreach (var additional in response.AdditionalLines)
{
await connection.WriteLineAsyncAndFireEvents(additional);
}
await connection.WriteLineAsyncAndFireEvents(response.ResponseCode + " " + response.ResponseText);
}
private static bool IsLineTooLong(byte[] lineBuf, out SmtpResponse smtpResponse)
{
if (lineBuf.Length > 2040)
{
smtpResponse = SmtpResponse.LineTooLong;
return(true);
}
smtpResponse = SmtpResponse.None;
return(false);
}
private SmtpResponse VerifyEhlo()
{
var smtpCapabilities = _getSmtpCapabilities.GetCapabilities().ToList();
if (!smtpCapabilities.Any())
{
return(SmtpResponses.OK);
}
var additionalLines = smtpCapabilities.Skip(1).Select(capability => "250-" + capability).ToList();
var response = new SmtpResponse(250, smtpCapabilities.First().ToString(), additionalLines);
return(response);
}
private static async Task SendResponseAsync(SmtpConnection connection, SmtpResponse response)
{
LogResponse(response);
try
{
foreach (var additional in response.AdditionalLines)
{
await connection.WriteLineAsyncAndFireEvents(additional);
}
await connection.WriteLineAsyncAndFireEvents(response.ResponseCode + " " + response.ResponseText);
} catch (Exception ex)
{
MailServerLogger.Instance.Error(ex);
}
}
private static void LogResponse(SmtpResponse response)
{
var logger = MailServerLogger.Instance;
if (logger.LogLevel < MailServerLogLevel.Debug)
{
return;
}
var logMessage = new StringBuilder();
foreach (var additionalLine in response.AdditionalLines)
{
logMessage.AppendLine(">>> " + additionalLine);
}
logMessage.AppendLine(">>> " + response.ResponseCode + " " + response.ResponseText);
logger.Debug(logMessage.ToString());
}
private SmtpResponse VerifyEhlo()
{
var response = new SmtpResponse(250, "SIZE " + Configuration.MaxMailMessageSize, new[] { "250-PIPELINING" });
return(response);
}
private bool ProcessRawLineHasResponse(string line, out SmtpResponse smtpResponse)
{
smtpResponse = ProcessRawLine(line);
return(smtpResponse != SmtpResponse.None);
}