kstafford3/ssh2-shell-server

A wrapper for ssh2 with an eye toward interactive shells.

ssh2-shell-server's Issues

PuTTY client

LK"I

Hi There,
Tried to use the passowrd example , but no luck with PuTTY.

Error Report:

Listening on port 5151...
Error! { err: { Error: No supported authentication methods available
at onDISCONNECT (C:\projects_node\ssh_test\ssh_test\ssh_test\node_modules\ssh2-streams\lib\ssh.js:2202:15)
at SSH2Stream. (C:\projects_node\ssh_test\ssh_test\ssh_test\node_modules\ssh2-streams\lib\ssh.js:203:5)
at emitMany (events.js:146:13)
at SSH2Stream.emit (events.js:223:7)
at parsePacket (C:\projects_node\ssh_test\ssh_test\ssh_test\node_modules\ssh2-streams\lib\ssh.js:3748:10)
at SSH2Stream._transform (C:\projects_node\ssh_test\ssh_test\ssh_test\node_modules\ssh2-streams\lib\ssh.js:669:13)
at SSH2Stream.Transform._read (_stream_transform.js:186:10)
at SSH2Stream._read (C:\projects_node\ssh_test\ssh_test\ssh_test\node_modules\ssh2-streams\lib\ssh.js:251:15)
at SSH2Stream.Transform._write (_stream_transform.js:174:12)
at doWrite (_stream_writable.js:387:12) code: 14 },
client:
Client {
domain: null,
_events:
{ ready: [Array],
authentication: [Function],
end: [Function],
error: [Function] },
_eventsCount: 4,
_maxListeners: undefined,
_sshstream:
SSH2Stream {
_readableState: [Object],
readable: true,
domain: null,
_events: [Object],
_eventsCount: 15,
_maxListeners: undefined,
_writableState: [Object],
writable: true,
allowHalfOpen: true,
_transformState: [Object],
_needContinue: false,
bytesReceived: 256,
bytesSent: 112,
debug: [Function: DEBUG_NOOP],
server: true,
maxPacketSize: 35000,
remoteBugs: 1,
config: [Object],
_state: [Object] },
_channels: {},
_curChan: -1,
_sock:
Socket {
connecting: false,
_hadError: false,
_handle: [Object],
_parent: null,
_host: null,
_readableState: [Object],
readable: true,
domain: null,
_events: [Object],
_eventsCount: 7,
_maxListeners: undefined,
_writableState: [Object],
writable: true,
allowHalfOpen: false,
_bytesDispatched: 1281,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: [Object],
_server: [Object],
read: [Function],
_consuming: true,
_peername: [Object],
[Symbol(asyncId)]: 8,
[Symbol(bytesRead)]: 0 },
noMoreSessions: false,
authenticated: false },
session: null }
Session Ended

Code:

const { ShellServer, Authenticators } = require('../lib/index');

const fs = require('fs');
const readline = require('readline');

const keyFile = fs.readFileSync('./test_keys/test_key');
const PORT = 5151;

const QUIT_KEYWORDS = [ 'quit', 'exit', 'q' ];

const server = new ShellServer({
  hostKeys: [ keyFile ],
  port: PORT,
},
Authenticators.authenticateByPassword(checkPassword));

// Authenticators.authenticateByPassword(checkPassword)); // Alternative authentication

server.on('session-created', (session) => {
  console.log('Session Created');
  session.on('stream-initialized', (stream) => {
    console.log('Stream Initialized');
    stream.write('Welcome to the password-protected server!\r\n');
    const rl = readline.createInterface({
      input: stream,
      output: stream,
      prompt: '>',
    });
    rl.prompt();
    rl.on('line', (line) => {
      console.log(`${session.username}: ${line}`);
      stream.write(`${line}\r\n`);
      if (QUIT_KEYWORDS.indexOf(line.toLowerCase()) > -1) {
        rl.close();
      }
      rl.prompt();
    });

    rl.on('close', () => {
      stream.write('Ok, well, I guess I\'ll talk to you later, then.\r\n');
      stream.close();
    });
  });
});

server.on('session-ended', (e) => {
  console.log('Session Ended');
});

server.on('error', (e) => {
  console.error('Error!', e);
});

server.listen().then(() => {
  console.log(`Listening on port ${PORT}...`);
});

function checkPassword(username, password) {
  return password === 'password'; // secure af
}

Client throws when emitting 'error'

Hi！
When I use Ctrl+C to exit connection in Are you sure you want to continue connecting (yes/no/[fingerprint])? , Client will throw an exception. it maybe client object has no listen on 'error', because this code client.removeListener('error', onClientPreHeaderError); in server.js file.

update：sorry, not in this repo.

Question : Is it possible to redirect stdin/stdout to Shell Server?

LK"I

Hi ,

Thankyou for you excellent SSH2 server library!

Is it possible to use your library to redirect application stdin/stdout to ssh server session?
(for instance redirect the Bash shell to remotely control the PC. )

https://superuser.com/questions/1259194/redirect-process-stdin-and-stdout-to-ssh

Harel