protected override void OnStart(string[] args)
{
server = new RelayServer()
{
EnableBuiltinWebclient = bool.Parse(ConfigurationManager.AppSettings["enableWebClient"] ?? "true")
};
stopping = new TaskCompletionSource <bool>();
task = server.Listen(
args.Length > 0 ? args[0] : ConfigurationManager.AppSettings["listenPrefix"] ?? "http://*:80/",
int.Parse(ConfigurationManager.AppSettings["maxConnections"] ?? "8"),
stopping);
base.OnStart(args);
}
private static void HandleRelay(Stream stream, Options options)
{
IRelay relay; string code, urlBase = options.ListenPrefix.Replace("*", HostName).Replace("+", HostName).Replace(":80", "");
var done = new TaskCompletionSource <bool>();
Task <bool> listenTask = null;
if (!string.IsNullOrEmpty(options.RemoteHost))
{
relay = new SocketRelayClient();
code = (relay as SocketRelayClient).AddRelay(new Uri(options.RemoteHost), stream, options.FinalFilename, options.FinalContentType).Result;
urlBase = options.RemoteHost.Replace("ws", "http");
}
else if (options.ListenPrefix.AlreadyListening())
{
// if something is listening on the requested port, assume it's our service and try to connect to it..
try
{
relay = new SocketRelayClient();
code = (relay as SocketRelayClient).AddRelay(new Uri(urlBase.Replace("http", "ws")), stream, options.FinalFilename, options.FinalContentType).Result;
}
catch (Exception e)
{
throw new Exception($"Another process is already listening on {options.ListenPrefix}\r\n" +
"Try a different port or install the service to avoid this error.", e);
}
}
else
{
relay = new LocalRelay(stream, options.FinalFilename, options.FinalContentType);
var server = new RelayServer()
{
AcceptSocketConnections = false
};
code = server.AddRelay(relay);
listenTask = server.Listen(options.ListenPrefix, options.MaxConnections.Value, done);
if (listenTask.IsFaulted)
{
throw listenTask.Exception.InnerException;
}
}
int lastLen = Console.BufferWidth - 1;
void PrintStatus(string status)
{
string line = string.Format("Status: {0}", status);
int lineLen = line.Length;
if (lineLen < lastLen)
{
line = line.PadRight(lastLen);
}
lastLen = lineLen;
Console.CursorLeft = 0;
Console.Write(line);
}
relay.OnStart += () => PrintStatus("download starting..");
relay.OnComplete += () => { PrintStatus("download complete"); done.TrySetResult(true); };
relay.OnDisconnect += () => PrintStatus("disconnected, waiting for resume..");
relay.OnCancel += () => { PrintStatus("canceled"); done.TrySetResult(false); };
long lastDownloaded = 0;
double lastLastBps = 0, lastBps = 0, inverseTotal = (stream.CanSeek && stream.Length > 0) ? 100.0 / stream.Length : 1.0;
void ProgressUpdate(long downloaded, long?total)
{
double bps = downloaded - lastDownloaded;
bps = (bps + (lastBps > 0 ? lastBps : bps) + (lastLastBps > 0 ? lastLastBps : bps)) / 3.0;
lastLastBps = lastBps; lastBps = bps; lastDownloaded = downloaded;
if (total.HasValue)
{
var remaining = bps > 0 ? TimeSpan.FromSeconds((total.Value - downloaded) / bps).ToString("hh\\:mm\\:ss") : "--:--:--";
PrintStatus($"{downloaded.FormatBytes()} ({downloaded * inverseTotal:0}%) downloaded, time remaining {remaining} (at {((long)bps).FormatBytes()}/sec)");
}
else
{
PrintStatus($"{downloaded.FormatBytes()} downloaded (at {((long)bps).FormatBytes()}/sec)");
}
}
relay.OnProgress += (transferred, total) => ProgressUpdate(transferred, total);
Console.WriteLine($"Download link: {urlBase.TrimEnd('/')}/{code}");
Console.WriteLine($"Press {(Console.IsInputRedirected ? "CTRL+C" : "any key")} to cancel");
Console.WriteLine();
PrintStatus("waiting for connection..");
if (Console.IsInputRedirected)
{
Console.CancelKeyPress += (e, args) => { done.TrySetResult(false); relay.Cancel(); };
done.Task.Wait();
}
else
{
while (!done.Task.IsCompleted)
{
Thread.Sleep(100);
if (Console.KeyAvailable)
{
done.TrySetResult(false);
relay.Cancel();
}
}
}
if (listenTask != null && listenTask.IsFaulted)
{
PrintStatus("error");
Console.WriteLine();
throw listenTask.Exception.InnerException;
}
if (done.Task.Result)
{
PrintStatus("completed successfully");
}
else
{
PrintStatus("canceled");
}
}
private void Application_Startup(object sender, StartupEventArgs e)
{
bool isAdmin = new WindowsPrincipal(WindowsIdentity.GetCurrent()).IsInRole(WindowsBuiltInRole.Administrator);
try
{
if (OneInstance.First())
{
OneInstance.OnMessage += AddRelay;
}
else if (e.Args.Length > 0)
{
OneInstance.SendMessage(new FileInfo(e.Args[0]).FullName);
Shutdown();
return;
}
if (e.Args.Length == 0)
{
if (isAdmin)
{
InstallRegistry();
}
if (!stayOpen)
{
Shutdown();
return;
}
}
urlBase = listenPrefix.Replace("*", hostName).Replace("+", hostName).Replace(":80", "");
var enableWebclient = bool.Parse(ConfigurationManager.AppSettings["enableWebClient"] ?? "true");
var acceptRelays = bool.Parse(ConfigurationManager.AppSettings["acceptRelays"] ?? "true");
var maxConnections = int.Parse(ConfigurationManager.AppSettings["maxConnections"] ?? "8");
if (!string.IsNullOrEmpty(remoteHost))
{
remote = true;
urlBase = remoteHost.Replace("ws", "http");
}
else if (listenPrefix.AlreadyListening())
{
remote = true;
remoteHost = urlBase.Replace("http", "ws");
}
else
{
remote = false;
server = new RelayServer()
{
EnableBuiltinWebclient = enableWebclient, AcceptSocketConnections = acceptRelays
};
stop = new TaskCompletionSource <bool>();
listen = server.Listen(listenPrefix, maxConnections, stop);
if (listen.IsFaulted)
{
throw listen.Exception.InnerException;
}
server.OnSocketRelay += (file, size, code, relay) => AddRelayStatus(file, size, urlBase + code, relay);
}
urlBase += urlBase.EndsWith("/") ? "" : "/";
urlBase = Regex.Replace(urlBase, "localhost", hostName, RegexOptions.IgnoreCase);
var idleStatus = $"{(remote ? "Relaying to" : "Listening on")} {urlBase}";
if (!remote)
{
idleStatus +=
$"\r\n{(acceptRelays ? "Accepting" : "Not accepting")} relays" +
$"\r\nWebclient is {(enableWebclient ? "enabled" : "disabled")}" +
$"\r\n{maxConnections} max connections";
}
relayStatus = new RelayStatus(idleStatus);
notifyIcon = (TaskbarIcon)FindResource("NotifyIcon");
notifyIcon.TrayToolTip = relayStatus;
notifyIcon.DataContext = relayStatus;
if (e.Args.Length > 0)
{
AddRelay(e.Args[0]);
}
else
{
notifyIcon.Icon = appIcon;
ShowRelays();
}
}
catch (System.Net.HttpListenerException ex) when((uint)ex.HResult == 0x80004005) // access denied
{
if (!isAdmin)
{
OneInstance.Dispose();
Process.Start(new ProcessStartInfo(Assembly.GetEntryAssembly().Location, e.Args.Length > 0 ? e.Args[0] : "")
{
Verb = "runas"
});
}
else
{
MessageBox.Show(ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
Shutdown();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
Shutdown();
}
}