/// <summary>
/// Handles the command input from the client. This
/// message returns when the client issues the quit command.
/// </summary>
private void ProcessCommands(SMTPContext context)
{
bool isRunning = true;
// Loop until the client quits.
while (isRunning)
{
try
{
String inputLine = context.ReadLine();
if (inputLine == null)
{
isRunning = false;
context.Close();
continue;
}
Log.DebugFormat(Resources.Log_ProcessCommands_ProcessCommands_Read_0, inputLine);
String[] inputs = inputLine.Split(" ".ToCharArray());
var messageUnknownCommand = Resources.Protocol_MESSAGE_UNKNOWN_COMMAND_500_Command_Unrecognized;
switch (inputs[0].ToLower())
{
case "helo":
Helo(context, inputs);
break;
case "rset":
Rset(context);
break;
case "noop":
context.WriteLine(Resources.Protocol_MESSAGE_OK_250_OK);
break;
case "quit":
isRunning = false;
context.WriteLine(Resources.Protocol_MESSAGE_GOODBYE_221_Goodbye);
context.Close();
break;
case "mail":
if (inputs[1].ToLower().StartsWith("from"))
{
Mail(context, inputLine.Substring(inputLine.IndexOf(" ", StringComparison.Ordinal)));
break;
}
context.WriteLine(messageUnknownCommand);
break;
case "rcpt":
if (inputs[1].ToLower().StartsWith("to"))
{
Rcpt(context, inputLine.Substring(inputLine.IndexOf(" ", StringComparison.Ordinal)));
break;
}
context.WriteLine(messageUnknownCommand);
break;
case "data":
Data(context);
break;
default:
context.WriteLine(messageUnknownCommand);
break;
}
}
catch (Exception exception)
{
Log.ErrorFormat(
Resources.Log_ProcessCommands_Connection_0_Exception_occured_while_processing_commands_1,
context.ConnectionId, exception, exception);
context.WriteLine(Resources.Protocol_MESSAGE_SYSTEM_ERROR_554_Transaction_failed);
}
}
}
private void Data(SMTPContext context)
{
context.WriteLine(Resources.Protocol_MESSAGE_START_DATA__354_Start_mail_input_end_with_CRLF_CRLF);
SMTPMessage message = context.Message;
var clientEndPoint = (IPEndPoint)context.Socket.RemoteEndPoint;
var header = new StringBuilder();
header.AppendFormat(Resources.EMAIL_Received_from_0_0_1, context.ClientDomain, clientEndPoint.Address);
header.AppendLine();
header.AppendFormat(Resources.EMAIL_by_0_Eric_Daugherty_s_C_Email_Server, _domain);
header.AppendLine();
header.Append(" " + DateTime.Now);
header.AppendLine();
message.AddData(header.ToString());
String line = context.ReadLine();
while (!line.Equals("."))
{
message.AddData(line);
message.AddData("\r\n");
line = context.ReadLine();
}
// Spool the message
_messageSpool.SpoolMessage(message);
context.WriteLine(Resources.Protocol_MESSAGE_OK_250_OK);
// Reset the connection.
context.Reset();
}