You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
51 lines
1.3 KiB
51 lines
1.3 KiB
'use strict'; |
|
const os = require('os'); |
|
const defaultGateway = require('default-gateway'); |
|
const ipaddr = require('ipaddr.js'); |
|
|
|
function findIp(gateway) { |
|
const interfaces = os.networkInterfaces(); |
|
const gatewayIp = ipaddr.parse(gateway); |
|
let ip; |
|
|
|
// Look for the matching interface in all local interfaces |
|
Object.keys(interfaces).some(name => { |
|
return interfaces[name].some(addr => { |
|
const prefix = ipaddr.parse(addr.netmask).prefixLengthFromSubnetMask(); |
|
const net = ipaddr.parseCIDR(`${addr.address}/${prefix}`); |
|
|
|
if (net[0] && net[0].kind() === gatewayIp.kind() && gatewayIp.match(net)) { |
|
ip = net[0].toString(); |
|
} |
|
|
|
return Boolean(ip); |
|
}); |
|
}); |
|
|
|
return ip; |
|
} |
|
|
|
function promise(family) { |
|
return defaultGateway[family]().then(result => { |
|
return findIp(result.gateway) || null; |
|
}).catch(() => null); |
|
} |
|
|
|
function sync(family) { |
|
try { |
|
const result = defaultGateway[family].sync(); |
|
return findIp(result.gateway) || null; |
|
} catch (error) { |
|
return null; |
|
} |
|
} |
|
|
|
const internalIp = {}; |
|
internalIp.v6 = () => promise('v6'); |
|
internalIp.v4 = () => promise('v4'); |
|
internalIp.v6.sync = () => sync('v6'); |
|
internalIp.v4.sync = () => sync('v4'); |
|
|
|
module.exports = internalIp; |
|
// TODO: Remove this for the next major release |
|
module.exports.default = internalIp;
|
|
|