@types/ssh2

What is @types/ssh2?

@types/ssh2 provides TypeScript definitions for the ssh2 library, which is a client and server implementation of the SSH2 protocol. This package allows developers to use the ssh2 library with TypeScript, providing type safety and autocompletion features.

What are @types/ssh2's main functionalities?

Establishing an SSH Connection

This code sample demonstrates how to establish an SSH connection to a remote server and execute a command ('uptime') on that server. The connection is established using the ssh2 library, and the TypeScript definitions provided by @types/ssh2 ensure type safety.

const Client = require('ssh2').Client;
const conn = new Client();
conn.on('ready', () => {
  console.log('Client :: ready');
  conn.exec('uptime', (err, stream) => {
    if (err) throw err;
    stream.on('close', (code, signal) => {
      console.log('Stream :: close :: code: ' + code + ', signal: ' + signal);
      conn.end();
    }).on('data', (data) => {
      console.log('STDOUT: ' + data);
    }).stderr.on('data', (data) => {
      console.log('STDERR: ' + data);
    });
  });
}).connect({
  host: '127.0.0.1',
  port: 22,
  username: 'frylock',
  privateKey: require('fs').readFileSync('/here/is/my/key')
});

Setting up an SSH Server

This code sample demonstrates how to set up an SSH server that listens for incoming connections. The server authenticates clients using a username and password, and allows them to execute commands. The TypeScript definitions provided by @types/ssh2 ensure type safety for the ssh2 library's server functionality.

const { Server } = require('ssh2');
const fs = require('fs');
const server = new Server({
  hostKeys: [fs.readFileSync('host.key')]
}, (client) => {
  console.log('Client connected!');
  client.on('authentication', (ctx) => {
    if (ctx.method === 'password' && ctx.username === 'foo' && ctx.password === 'bar')
      ctx.accept();
    else
      ctx.reject();
  }).on('ready', () => {
    console.log('Client authenticated!');
    client.on('session', (accept, reject) => {
      const session = accept();
      session.on('exec', (accept, reject, info) => {
        console.log('Client wants to execute: ' + info.command);
        const stream = accept();
        stream.stderr.write('Oh no, the dreaded errors!
');
        stream.write('Just kidding about the errors!
');
        stream.exit(0);
        stream.end();
      });
    });
  }).on('end', () => {
    console.log('Client disconnected');
  });
}).listen(22, '127.0.0.1', () => {
  console.log('Listening on port 22');
});

Other packages similar to @types/ssh2

node-ssh

node-ssh is a simpler, higher-level library for SSH connections in Node.js. It provides a more user-friendly API compared to ssh2, but may lack some of the advanced features and flexibility of ssh2.

ssh2-promise

ssh2-promise is a wrapper around ssh2 that provides a promise-based API. This can make it easier to work with asynchronous operations compared to the callback-based API of ssh2.

simple-ssh

simple-ssh is another high-level library for SSH connections in Node.js. It focuses on simplicity and ease of use, but may not offer the same level of control and customization as ssh2.

README

Installation

npm install --save @types/ssh2

Summary

This package contains type definitions for ssh2 (https://github.com/mscdex/ssh2).

Details

Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/ssh2.

Additional Details

• Last updated: Mon, 03 Apr 2023 19:33:11 GMT
• Dependencies: @types/node
• Global values: none

Credits

These definitions were written by Qubo, Ron Buckton, Will Boyce, Lucas Motta, Tom Xu, Leo Toneff, Lucian Buzzo, and Dan Hensby.