webssh2/app.js
billchurch 5c9369d57a Updated config path statement
config path now uses “require.main.filename” which should switch
between being used a module or as an application.
2018-02-12 10:48:26 -05:00

93 lines
3.7 KiB
JavaScript

// app.js
var path = require('path')
// configPath = path.join(__dirname, 'config.json')
configPath = path.join(path.dirname(require.main.filename), 'config.json')
console.log('Reading config from: ' + configPath)
var config = require('read-config')(configPath)
var express = require('express')
var logger = require('morgan')
var session = require('express-session')({
secret: config.session.secret,
name: config.session.name,
resave: true,
saveUninitialized: false,
unset: 'destroy'
})
var app = express()
var compression = require('compression')
var server = require('http').Server(app)
var myutil = require('./util')
var validator = require('validator')
var io = require('socket.io')(server, { serveClient: false })
var socket = require('./socket')
var expressOptions = require('./expressOptions')
// express
app.use(compression({level: 9}))
app.use(session)
app.use(myutil.basicAuth)
if (config.accesslog) app.use(logger('common'))
app.disable('x-powered-by')
// static files
app.use(express.static(path.join(__dirname, 'public'), expressOptions))
app.get('/ssh/host/:host?', function (req, res, next) {
res.sendFile(path.join(path.join(__dirname, 'public', 'client.htm')))
// capture, assign, and validated variables
req.session.ssh = {
host: (validator.isIP(req.params.host + '') && req.params.host) ||
(validator.isFQDN(req.params.host) && req.params.host) ||
(/^(([a-z]|[A-Z]|[0-9]|[!^(){}\-_~])+)?\w$/.test(req.params.host) &&
req.params.host) || config.ssh.host,
port: (validator.isInt(req.query.port + '', {min: 1, max: 65535}) &&
req.query.port) || config.ssh.port,
header: {
name: req.query.header || config.header.text,
background: req.query.headerBackground || config.header.background
},
algorithms: config.algorithms,
keepaliveInterval: config.ssh.keepaliveInterval,
keepaliveCountMax: config.ssh.keepaliveCountMax,
term: (/^(([a-z]|[A-Z]|[0-9]|[!^(){}\-_~])+)?\w$/.test(req.query.sshterm) &&
req.query.sshterm) || config.ssh.term,
terminal: {
cursorBlink: (validator.isBoolean(req.query.cursorBlink + '') ? myutil.parseBool(req.query.cursorBlink) : config.terminal.cursorBlink),
scrollback: (validator.isInt(req.query.scrollback + '', {min: 1, max: 200000}) && req.query.scrollback) ? req.query.scrollback : config.terminal.scrollback,
tabStopWidth: (validator.isInt(req.query.tabStopWidth + '', {min: 1, max: 100}) && req.query.tabStopWidth) ? req.query.tabStopWidth : config.terminal.tabStopWidth
},
allowreplay: (validator.isBoolean(req.headers.allowreplay + '') ? myutil.parseBool(req.headers.allowreplay) : false),
mrhsession: ((validator.isAlphanumeric(req.headers.mrhsession + '') && req.headers.mrhsession) ? req.headers.mrhsession : 'none'),
serverlog: {
client: config.serverlog.client || false,
server: config.serverlog.server || false
},
readyTimeout: (validator.isInt(req.query.readyTimeout + '', {min: 1, max: 300000}) &&
req.query.readyTimeout) || config.ssh.readyTimeout
}
if (req.session.ssh.header.name) validator.escape(req.session.ssh.header.name)
if (req.session.ssh.header.background) validator.escape(req.session.ssh.header.background)
})
// express error handling
app.use(function (req, res, next) {
res.status(404).send("Sorry can't find that!")
})
app.use(function (err, req, res, next) {
console.error(err.stack)
res.status(500).send('Something broke!')
})
// socket.io
// expose express session with socket.request.session
io.use(function (socket, next) {
(socket.request.res) ? session(socket.request, socket.request.res, next)
: next(next)
})
// bring up socket
io.on('connection', socket)
module.exports = {server: server, config: config}