136 lines
3.0 KiB
C#
136 lines
3.0 KiB
C#
//
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// SmtpServer.cs - Dummy SMTP server used to test SmtpClient
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//
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// Author:
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// Raja R Harinath <harinath@hurrynot.org>
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//
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using System;
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using System.Diagnostics;
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using System.IO;
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using System.Net;
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using System.Net.Mail;
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using System.Net.Sockets;
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using System.Text;
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using System.Threading;
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namespace MonoTests.System.Net.Mail {
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public class SmtpServer
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{
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public string mail_from, rcpt_to;
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public StringBuilder data;
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TcpListener server;
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public IPEndPoint EndPoint {
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get { return (IPEndPoint) server.LocalEndpoint; }
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}
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public SmtpServer ()
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{
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server = new TcpListener (0);
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server.Start (1);
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}
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private static void WriteNS (NetworkStream ns, string s)
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{
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Trace ("response", s);
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byte [] bytes = Encoding.ASCII.GetBytes (s);
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ns.Write (bytes, 0, bytes.Length);
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}
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public void Run ()
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{
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string s;
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using (TcpClient client = server.AcceptTcpClient ()) {
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Trace ("connection", EndPoint.Port);
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using (NetworkStream ns = client.GetStream ()) {
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WriteNS (ns, "220 localhost\r\n");
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using (StreamReader r = new StreamReader (ns, Encoding.UTF8)) {
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while ((s = r.ReadLine ()) != null && Dispatch (ns, r, s))
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;
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}
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}
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}
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}
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// return false == terminate
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public bool Dispatch (NetworkStream ns, StreamReader r, string s)
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{
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Trace ("command", s);
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if (s.Length < 4) {
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WriteNS (ns, "502 Huh\r\n");
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return false;
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}
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bool retval = true;
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switch (s.Substring (0, 4)) {
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case "HELO":
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break;
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case "QUIT":
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WriteNS (ns, "221 Quit\r\n");
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return false;
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case "MAIL":
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mail_from = s.Substring (10);
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break;
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case "RCPT":
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rcpt_to = s.Substring (8);
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break;
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case "DATA":
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WriteNS (ns, "354 Continue\r\n");
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data = new StringBuilder ();
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while ((s = r.ReadLine ()) != null) {
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if (s == ".")
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break;
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data.AppendLine (s);
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}
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Trace ("end of data", s);
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retval = (s != null);
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break;
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default:
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WriteNS (ns, "502 Huh\r\n");
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return true;
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}
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WriteNS (ns, "250 OK\r\n");
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return retval;
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}
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[Conditional ("TEST")]
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static void Trace (string key, object value)
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{
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Console.Error.WriteLine ("{0}: {1}", key, value);
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}
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#if TEST
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static void DoTest (SmtpServer s, SmtpClient c, MailMessage m)
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{
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Thread t = new Thread (s.Run);
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t.Start ();
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c.Send (m);
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t.Join ();
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Console.WriteLine ("Message From: {0}", m.From);
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Console.WriteLine ("Message Sender: {0}", m.Sender);
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Console.WriteLine ("Mail From: {0}", s.mail_from);
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Console.WriteLine ("Rcpt To: {0}", s.rcpt_to);
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Console.WriteLine ("-------------------------------------");
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Console.Write (s.data);
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Console.WriteLine ("-------------------------------------");
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}
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static void Main ()
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{
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var server = new SmtpServer ();
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var client = new SmtpClient ("localhost", server.EndPoint.Port);
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var msg = new MailMessage ("foo@example.com", "bar@example.com", "hello", "howdydoo");
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DoTest (server, client, msg);
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msg.Sender = new MailAddress ("baz@example.com");
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DoTest (server, client, msg);
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}
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#endif
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}
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}
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