internal SmtpResponse HeloCommand(string CommandLine)
{
var response = new SmtpResponse();
var command = SmtpCommand.Parse(CommandLine);
// TODO validate the incoming domain...
if (command.Name == SmtpCommandName.HELO)
{
if (!string.IsNullOrEmpty(command.Value))
{
response.Code = 250;
response.Message = "Hello " + command.Value + " Kooboo Smtp Server";
this.State = CommandState.Body;
this.ClientHostName = command.Value;
}
else
{
response.Code = 501;
response.Message = "Hostname required";
}
}
else if (command.Name == SmtpCommandName.EHLO)
{
if (!string.IsNullOrEmpty(command.Value))
{
response.Code = 250;
response.Seperator = '-';
response.Message = "Hello " + command.Value + "\r\n250-SIZE 20480000\r\n250-AUTH LOGIN\r\n250 OK";
this.State = CommandState.Body;
this.ClientHostName = command.Value;
}
else
{
response.Code = 501;
response.Message = "Hostname required";
}
}
else if (command.Name == SmtpCommandName.UNKNOWN)
{
response.Code = 550;
response.Message = "bad command";
}
else if (command.Name == SmtpCommandName.QUIT)
{
response.Code = 221;
response.Message = "Goodbye";
response.Close = true;
}
else
{
response.Code = 502;
response.Message = "HELO or EHLO first";
}
this.Log.Add(command, response);
return(response);
}
internal SmtpResponse BodyCommand(string CommandLine)
{
var response = new SmtpResponse();
var command = SmtpCommand.Parse(CommandLine);
if (command.Name == SmtpCommandName.AUTHLOGIN)
{
if (string.IsNullOrEmpty(command.Value))
{
this.State = CommandState.Auth;
response.Code = 334;
response.Message = Convert.ToBase64String(Encoding.ASCII.GetBytes("Username:"******"Password:"******"Sender address must be specified";
}
else if (!ValidMailFrom(command.Value))
{
response.Code = 550;
response.Message = "Invalid Sender address";
}
else
{
response.Code = 250;
response.Message = "Sender OK";
}
}
else if (command.Name == SmtpCommandName.RCPTTO)
{
if (string.IsNullOrEmpty(command.Value))
{
response.Code = 550;
response.Message = "Recipient address must be specified";
}
else
{
var validateResult = ValidateRecipient(command.Value);
if (validateResult.IsOkToSend)
{
response.Code = 250;
response.Message = "Recipient OK";
}
else
{
response.Code = 550;
response.Message = validateResult.ErrorMessage;
}
}
}
else if (command.Name == SmtpCommandName.DATA)
{
//public static string DataStart = "354 ";
this.State = CommandState.Data;
response.Code = 354;
response.Message = "End data with <CLRF>.<CLRF>";
}
else if (command.Name == SmtpCommandName.QUIT)
{
response.Code = 221;
response.Message = "Goodbye";
response.Close = true;
}
else
{
response.Code = 550;
response.Message = "Invalid command";
}
this.Log.Add(command, response);
return(response);
}
