FxSsh is a lightweight SSH server side application as SSH reinforcement of GitCandy.
PM> Install-Package FxSsh
static int windowWidth, windowHeight;
static void Main(string[] args)
{
var server = new SshServer();
server.AddHostKey("ssh-rsa", "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");
server.AddHostKey("ssh-dss", "BwIAAAAiAABEU1MyAAQAAG+6KQWB+crih2Ivb6CZsMe/7NHLimiTl0ap97KyBoBOs1amqXB8IRwI2h9A10R/v0BHmdyjwe0c0lPsegqDuBUfD2VmsDgrZ/i78t7EJ6Sb6m2lVQfTT0w7FYgVk3J1Deygh7UcbIbDoQ+refeRNM7CjSKtdR+/zIwO3Qub2qH+p6iol2iAlh0LP+cw+XlH0LW5YKPqOXOLgMIiO+48HZjvV67pn5LDubxru3ZQLvjOcDY0pqi5g7AJ3wkLq5dezzDOOun72E42uUHTXOzo+Ct6OZXFP53ZzOfjNw0SiL66353c9igBiRMTGn2gZ+au0jMeIaSsQNjQmWD+Lnri39n0gSCXurDaPkec+uaufGSG9tWgGnBdJhUDqwab8P/Ipvo5lS5p6PlzAQAAACqx1Nid0Ea0YAuYPhg+YolsJ/ce");
server.ConnectionAccepted += server_ConnectionAccepted;
server.Start();
Task.Delay(-1).Wait();
}
static void server_ConnectionAccepted(object sender, Session e)
{
Console.WriteLine("Accepted a client.");
e.ServiceRegistered += e_ServiceRegistered;
e.KeysExchanged += e_KeysExchanged;
}
private static void e_KeysExchanged(object sender, KeyExchangeArgs e)
{
foreach (var keyExchangeAlg in e.KeyExchangeAlgorithms)
{
Console.WriteLine("Key exchange algorithm: {0}", keyExchangeAlg);
}
}
static void e_ServiceRegistered(object sender, SshService e)
{
var session = (Session)sender;
Console.WriteLine("Session {0} requesting {1}.",
BitConverter.ToString(session.SessionId).Replace("-", ""), e.GetType().Name);
if (e is UserauthService)
{
var service = (UserauthService)e;
service.Userauth += service_Userauth;
}
else if (e is ConnectionService)
{
var service = (ConnectionService)e;
service.CommandOpened += service_CommandOpened;
service.EnvReceived += service_EnvReceived;
service.PtyReceived += service_PtyReceived;
service.TcpForwardRequest += service_TcpForwardRequest;
service.WindowChange += Service_WindowChange;
}
}
static void Service_WindowChange(object sender, WindowChangeArgs e)
{
// DEMO MiniTerm not support change window size
}
static void service_TcpForwardRequest(object sender, TcpRequestArgs e)
{
Console.WriteLine("Received a request to forward data to {0}:{1}", e.Host, e.Port);
var allow = true; // func(e.Host, e.Port, e.AttachedUserauthArgs);
if (!allow)
return;
var tcp = new TcpForwardService(e.Host, e.Port, e.OriginatorIP, e.OriginatorPort);
e.Channel.DataReceived += (ss, ee) => tcp.OnData(ee);
e.Channel.CloseReceived += (ss, ee) => tcp.OnClose();
tcp.DataReceived += (ss, ee) => e.Channel.SendData(ee);
tcp.CloseReceived += (ss, ee) => e.Channel.SendClose();
tcp.Start();
}
static void service_PtyReceived(object sender, PtyArgs e)
{
Console.WriteLine("Request to create a PTY received for terminal type {0}", e.Terminal);
windowWidth = (int)e.WidthChars;
windowHeight = (int)e.HeightRows;
}
static void service_EnvReceived(object sender, EnvironmentArgs e)
{
Console.WriteLine("Received environment variable {0}:{1}", e.Name, e.Value);
}
static void service_Userauth(object sender, UserauthArgs e)
{
Console.WriteLine("Client {0} fingerprint: {1}.", e.KeyAlgorithm, e.Fingerprint);
e.Result = true;
}
static void service_CommandOpened(object sender, CommandRequestedArgs e)
{
Console.WriteLine($"Channel {e.Channel.ServerChannelId} runs {e.ShellType}: \"{e.CommandText}\".");
var allow = true; // func(e.ShellType, e.CommandText, e.AttachedUserauthArgs);
if (!allow)
return;
if (e.ShellType == "shell")
{
// requirements: Windows 10 RedStone 5, 1809
// also, you can call powershell.exe
var terminal = new Terminal("cmd.exe", windowWidth, windowHeight);
e.Channel.DataReceived += (ss, ee) => terminal.OnInput(ee);
e.Channel.CloseReceived += (ss, ee) => terminal.OnClose();
terminal.DataReceived += (ss, ee) => e.Channel.SendData(ee);
terminal.CloseReceived += (ss, ee) => e.Channel.SendClose(ee);
terminal.Run();
}
else if (e.ShellType == "exec")
{
var parser = new Regex(@"(?<cmd>git-receive-pack|git-upload-pack|git-upload-archive) \'/?(?<proj>.+)\.git\'");
var match = parser.Match(e.CommandText);
var command = match.Groups["cmd"].Value;
var project = match.Groups["proj"].Value;
var git = new GitService(command, project);
e.Channel.DataReceived += (ss, ee) => git.OnData(ee);
e.Channel.CloseReceived += (ss, ee) => git.OnClose();
git.DataReceived += (ss, ee) => e.Channel.SendData(ee);
git.CloseReceived += (ss, ee) => e.Channel.SendClose(ee);
git.Start();
}
else if (e.ShellType == "subsystem")
{
// do something more
}
}The MIT license