/// <summary>
/// Creates the shell stream for interactive mode.
/// </summary>
/// <param name="sshClient">The SSH client.</param>
/// <returns></returns>
private static ShellStream CreateShellStream(SshClient sshClient)
{
var terminalModes = new Dictionary <TerminalModes, uint>();
terminalModes.Add(TerminalModes.ECHO, 1);
terminalModes.Add(TerminalModes.IGNCR, 1);
var bufferWidth = (uint)Console.BufferWidth;
var bufferHeight = (uint)Console.BufferHeight;
var windowWidth = (uint)Console.WindowWidth;
var windowHeight = (uint)Console.WindowHeight;
var bufferSize = Console.BufferWidth * Console.BufferHeight;
var encoding = System.Text.Encoding.ASCII;
var shell = sshClient.CreateShellStream(TerminalName, bufferWidth, bufferHeight, windowWidth, windowHeight, bufferSize, terminalModes);
var escapeSequenceBytes = new List <byte>(128);
var isInEscapeSequence = false;
byte rxBytePrevious = 0;
byte rxByte = 0;
byte escapeSequenceType = 0;
shell.DataReceived += (s, e) =>
{
var rxBuffer = e.Data;
for (var i = 0; i < rxBuffer.Length; i++)
{
rxByte = rxBuffer[i];
// We've found the beginning of an escapr sequence
if (isInEscapeSequence == false && rxByte == Escape)
{
isInEscapeSequence = true;
escapeSequenceBytes.Clear();
rxBytePrevious = rxByte;
continue;
}
// Print out the character if we are not in an escape sequence and it is a printable character
if (isInEscapeSequence == false)
{
if (rxByte >= 32 || (rxByte >= 8 && rxByte <= 13))
{
if (ForwardShellStreamOutput)
{
Console.Write((char)rxByte);
}
}
else if (rxByte == 7)
{
if (ForwardShellStreamOutput)
{
Console.Beep();
}
}
else
{
var originalColor = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.DarkYellow;
if (ForwardShellStreamOutput)
{
Console.Write("[NPC " + rxByte.ToString() + "]");
}
Console.ForegroundColor = originalColor;
}
rxBytePrevious = rxByte;
continue;
}
// If we are already inside an escape sequence . . .
if (isInEscapeSequence == true)
{
// Add the byte to the escape sequence
escapeSequenceBytes.Add(rxByte);
// Ignore the second escape byte 91 '[' or ']'
if (rxBytePrevious == Escape)
{
rxBytePrevious = rxByte;
if (ControlSequenceInitiators.Contains(rxByte))
{
escapeSequenceType = rxByte;
continue;
}
else
{
escapeSequenceType = 0;
}
}
// Detect if it's the last byte of the escape sequence (64 to 126)
// This last character determines the command to execute
var endOfSequenceType91 = escapeSequenceType == (byte)'[' && (rxByte >= 64 && rxByte <= 126);
var endOfSequenceType93 = escapeSequenceType == (byte)']' && (rxByte == 7);
if (endOfSequenceType91 || endOfSequenceType93)
{
try
{
// Execute the command of the given escape sequence
HandleShellEscapeSequence(escapeSequenceBytes.ToArray());
}
finally
{
isInEscapeSequence = false;
escapeSequenceBytes.Clear();
rxBytePrevious = rxByte;
}
continue;
}
}
rxBytePrevious = rxByte;
}
};
shell.ErrorOccurred += (s, e) =>
{
PrintException(e.Exception);
};
return(shell);
}
private static void OnShellDataRx(object sender, ShellDataEventArgs e)
{
var escapeSequenceBytes = new List <byte>(128);
var isInEscapeSequence = false;
byte rxbyteprevious = 0;
byte escapeSequenceType = 0;
var rxbuffer = e.Data;
foreach (var rxByte in rxbuffer)
{
// We've found the beginning of an escapr sequence
if (isInEscapeSequence == false && rxByte == Escape)
{
isInEscapeSequence = true;
escapeSequenceBytes.Clear();
rxbyteprevious = rxByte;
continue;
}
// Print out the character if we are not in an escape sequence and it is a printable character
if (isInEscapeSequence == false)
{
if (rxByte >= 32 || (rxByte >= 8 && rxByte <= 13))
{
if (_forwardShellStreamOutput)
{
Console.Write((char)rxByte);
}
}
else if (rxByte == 7)
{
if (_forwardShellStreamOutput)
{
Console.Beep();
}
}
else
{
if (_forwardShellStreamOutput)
{
Terminal.WriteLine($"[NPC {rxByte}]", ConsoleColor.DarkYellow);
}
}
rxbyteprevious = rxByte;
continue;
}
// If we are already inside an escape sequence . . .
// Add the byte to the escape sequence
escapeSequenceBytes.Add(rxByte);
// Ignore the second escape byte 91 '[' or ']'
if (rxbyteprevious == Escape)
{
rxbyteprevious = rxByte;
if (ControlSequenceInitiators.Contains(rxByte))
{
escapeSequenceType = rxByte;
continue;
}
escapeSequenceType = 0;
}
// Detect if it's the last byte of the escape sequence (64 to 126)
// This last character determines the command to execute
var endOfSequenceType91 = escapeSequenceType == (byte)'[' && (rxByte >= 64 && rxByte <= 126);
var endOfSequenceType93 = escapeSequenceType == (byte)']' && (rxByte == 7);
if (endOfSequenceType91 || endOfSequenceType93)
{
try
{
// Execute the command of the given escape sequence
HandleShellEscapeSequence(escapeSequenceBytes.ToArray());
}
finally
{
isInEscapeSequence = false;
escapeSequenceBytes.Clear();
rxbyteprevious = rxByte;
}
continue;
}
rxbyteprevious = rxByte;
}
}
static public void ExecuteShellVerb(ShellVerbOptions invokedVerbOptions)
{
using (var sshClient = DeploymentManager.CreateClient(invokedVerbOptions))
{
var exitEvent = new System.Threading.ManualResetEventSlim(false);
sshClient.Connect();
var terminalModes = new Dictionary <TerminalModes, uint>();
terminalModes.Add(TerminalModes.ECHO, 0);
terminalModes.Add(TerminalModes.IGNCR, 1);
var bufferWidth = (uint)Console.BufferWidth;
var bufferHeight = (uint)Console.BufferHeight;
var windowWidth = (uint)Console.WindowWidth;
var windowHeight = (uint)Console.WindowHeight;
var bufferSize = Console.BufferWidth * Console.BufferHeight;
var encoding = System.Text.Encoding.ASCII;
using (var shell = sshClient.CreateShellStream(TerminalName, bufferWidth, bufferHeight, windowWidth, windowHeight, bufferSize, terminalModes))
{
var escapeSequenceBytes = new List <byte>(128);
var isInEscapeSequence = false;
byte rxBytePrevious = 0;
byte rxByte = 0;
byte escapeSequenceType = 0;
shell.DataReceived += (s, e) =>
{
var rxBuffer = e.Data;
for (var i = 0; i < rxBuffer.Length; i++)
{
rxByte = rxBuffer[i];
// We've found the beginning of an escapr sequence
if (isInEscapeSequence == false && rxByte == Escape)
{
isInEscapeSequence = true;
escapeSequenceBytes.Clear();
rxBytePrevious = rxByte;
continue;
}
// Print out the character if we are not in an escape sequence and it is a printable character
if (isInEscapeSequence == false)
{
if (rxByte >= 32 || (rxByte >= 8 && rxByte <= 13))
{
Console.Write((char)rxByte);
}
else
{
var originalColor = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.DarkYellow;
Console.Write("[NPC " + rxByte.ToString() + "]");
Console.ForegroundColor = originalColor;
}
rxBytePrevious = rxByte;
continue;
}
if (isInEscapeSequence == true)
{
// Add the byte to the escape sequence
escapeSequenceBytes.Add(rxByte);
// Ignore the second escape byte 91 '[' or ']'
if (rxBytePrevious == Escape)
{
rxBytePrevious = rxByte;
if (ControlSequenceInitiators.Contains(rxByte))
{
escapeSequenceType = rxByte;
continue;
}
else
{
escapeSequenceType = 0;
}
}
// Detect if it's the last byte of the escape sequence (64 to 126)
// This last character determines the command to execute
var endOfSequenceType91 = escapeSequenceType == (byte)'[' && (rxByte >= 64 && rxByte <= 126);
var endOfSequenceType93 = escapeSequenceType == (byte)']' && (rxByte == 7);
if (endOfSequenceType91 || endOfSequenceType93)
{
try
{
// Execute the command of the given escape sequence
HandleShellEscapeSequence(escapeSequenceBytes.ToArray());
}
finally
{
isInEscapeSequence = false;
escapeSequenceBytes.Clear();
rxBytePrevious = rxByte;
}
continue;
}
}
rxBytePrevious = rxByte;
}
};
shell.ErrorOccurred += (s, e) =>
{
System.Diagnostics.Debug.WriteLine(e.Exception.Message);
};
while (true)
{
var line = Console.ReadLine();
var lineData = encoding.GetBytes(line + "\r\n");
shell.Write(lineData, 0, lineData.Length);
shell.Flush();
if (line.Equals("exit"))
{
var expectResult = shell.Expect("logout", TimeSpan.FromSeconds(2));
if (string.IsNullOrWhiteSpace(expectResult) == false && expectResult.Trim().EndsWith("logout"))
{
break;
}
}
}
}
sshClient.Disconnect();
}
}
