webssh2/app/server/config.js
Bill Church c7851da84a chore: take same config options from env and override
port, listen ip, session name, session secret
2021-05-20 16:35:34 -04:00

118 lines
2.9 KiB
JavaScript

// config.js
const fs = require('fs');
const path = require('path');
const nodeRoot = path.dirname(require.main.filename);
const configPath = path.join(nodeRoot, 'config.json');
// sane defaults if config.json or parts are missing
let config = {
listen: {
ip: '0.0.0.0',
port: 2222,
},
http: {
origins: ['localhost:2222'],
},
user: {
name: null,
password: null,
privatekey: null,
overridebasic: false,
},
ssh: {
host: null,
port: 22,
localAddress: null,
localPort: null,
term: 'xterm-color',
readyTimeout: 20000,
keepaliveInterval: 120000,
keepaliveCountMax: 10,
allowedSubnets: [],
},
terminal: {
cursorBlink: true,
scrollback: 10000,
tabStopWidth: 8,
bellStyle: 'sound',
},
header: {
text: null,
background: 'green',
},
session: {
name: 'WebSSH2',
secret: 'mysecret',
resave: false,
saveUninitialized: false,
unset: 'destroy',
},
options: {
challengeButton: true,
allowreauth: true,
},
algorithms: {
kex: [
'ecdh-sha2-nistp256',
'ecdh-sha2-nistp384',
'ecdh-sha2-nistp521',
'diffie-hellman-group-exchange-sha256',
'diffie-hellman-group14-sha1',
],
cipher: [
'aes128-ctr',
'aes192-ctr',
'aes256-ctr',
'aes128-gcm',
'aes128-gcm@openssh.com',
'aes256-gcm',
'aes256-gcm@openssh.com',
'aes256-cbc',
],
hmac: ['hmac-sha2-256', 'hmac-sha2-512', 'hmac-sha1'],
compress: ['none', 'zlib@openssh.com', 'zlib'],
},
serverlog: {
client: false,
server: false,
},
accesslog: false,
verify: false,
safeShutdownDuration: 300,
};
// We want our environment varaibles to take priority if they're set
function setOverrides() {
config.listen.ip = process.env.LISTEN_IP || config.listen.ip;
config.listen.port = process.env.PORT || config.listen.port;
config.session.name = process.env.SESSION_NAME || config.session.name;
config.session.secret = process.env.SESSION_SECRET || config.session.secret;
}
// test if config.json exists, if not provide error message but try to run anyway
try {
if (fs.existsSync(configPath)) {
// eslint-disable-next-line no-console
console.info(`WebSSH2 service reading config from: ${configPath}`);
// eslint-disable-next-line global-require
config = require('read-config-ng')(configPath);
// setup overrides for environment variables
setOverrides();
} else {
console.error(
`\n\nERROR: Missing config.json for WebSSH2. Current config: ${JSON.stringify(config)}`
);
console.error('\n See config.json.sample for details\n\n');
setOverrides();
}
} catch (err) {
console.error(
`\n\nERROR: Missing config.json for WebSSH2. Current config: ${JSON.stringify(config)}`
);
console.error('\n See config.json.sample for details\n\n');
console.error(`ERROR:\n\n ${err}`);
}
module.exports = config;