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index.js
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index.js
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const WebSocket = require('ws')
const os = require('os')
const pty = require('node-pty')
const DEFAULT_SHELL = os.platform() === 'win32' ? 'cmd.exe' : 'login'
module.exports =
class WebsocketShellServer {
constructor ({ shell = DEFAULT_SHELL, server }) {
if (!server) throw new TypeError('Missing http server parameter')
const wss = new WebSocket.Server({
server
})
wss.on('connection', (connection) => {
const ptyProcess = pty.spawn(shell, [], {
cwd: process.env.HOME,
env: process.env
})
ptyProcess.on('data', (data) => {
connection.send(data)
})
connection.on('message', (message) => {
ptyProcess.write(message)
})
ptyProcess.once('close', () => {
connection.removeAllListeners()
connection.close()
})
connection.once('close', () => {
ptyProcess.removeAllListeners()
ptyProcess.destroy()
})
})
this.wss = wss
}
}