114 lines
2.7 KiB
Plaintext
114 lines
2.7 KiB
Plaintext
|
/* @flow */
|
||
|
|
|
||
|
|
import os from 'os';
|
||
|
|
|
||
|
|
function _normalizeFamily(family) {
|
||
|
|
return family ? family.toLowerCase() : 'ipv4';
|
||
|
|
}
|
||
|
|
|
||
|
|
function priority(name) {
|
||
|
|
if (name.startsWith('en') || name.startsWith('eth')) {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
if (name.startsWith('wlan')) {
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
function isLoopback(addr) {
|
||
|
|
return (
|
||
|
|
/^(::f{4}:)?127\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})/.test(addr) ||
|
||
|
|
/^fe80::1$/.test(addr) ||
|
||
|
|
/^::1$/.test(addr) ||
|
||
|
|
/^::$/.test(addr)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
function isPrivate(addr) {
|
||
|
|
return (
|
||
|
|
/^(::f{4}:)?10\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
|
||
|
|
/^(::f{4}:)?192\.168\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
|
||
|
|
/^(::f{4}:)?172\.(1[6-9]|2\d|30|31)\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
|
||
|
|
/^(::f{4}:)?127\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
|
||
|
|
/^(::f{4}:)?169\.254\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
|
||
|
|
/^f[cd][0-9a-f]{2}:/i.test(addr) ||
|
||
|
|
/^fe80:/i.test(addr) ||
|
||
|
|
/^::1$/.test(addr) ||
|
||
|
|
/^::$/.test(addr)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
function isPublic(addr) {
|
||
|
|
return !isPrivate(addr);
|
||
|
|
}
|
||
|
|
|
||
|
|
function loopback(family) {
|
||
|
|
//
|
||
|
|
// Default to `ipv4`
|
||
|
|
//
|
||
|
|
family = _normalizeFamily(family);
|
||
|
|
|
||
|
|
if (family !== 'ipv4' && family !== 'ipv6') {
|
||
|
|
throw new Error('family must be ipv4 or ipv6');
|
||
|
|
}
|
||
|
|
|
||
|
|
return family === 'ipv4' ? '127.0.0.1' : 'fe80::1';
|
||
|
|
}
|
||
|
|
|
||
|
|
function address(name, family) {
|
||
|
|
var interfaces = os.networkInterfaces();
|
||
|
|
var all;
|
||
|
|
|
||
|
|
// Default to `ipv4`
|
||
|
|
//
|
||
|
|
family = _normalizeFamily(family);
|
||
|
|
|
||
|
|
// If a specific network interface has been named,
|
||
|
|
// return the address.
|
||
|
|
//
|
||
|
|
if (name && name !== 'private' && name !== 'public') {
|
||
|
|
var res = interfaces[name].filter(function(details) {
|
||
|
|
var itemFamily = details.family.toLowerCase();
|
||
|
|
return itemFamily === family;
|
||
|
|
});
|
||
|
|
if (res.length === 0) {
|
||
|
|
return undefined;
|
||
|
|
}
|
||
|
|
|
||
|
|
return res[0].address;
|
||
|
|
}
|
||
|
|
|
||
|
|
var sortedInterfaces = Object.keys(interfaces).sort(function(a, b) {
|
||
|
|
return priority(a) - priority(b);
|
||
|
|
});
|
||
|
|
|
||
|
|
var all = sortedInterfaces
|
||
|
|
.map(function(nic) {
|
||
|
|
//
|
||
|
|
// Note: name will only be `public` or `private`
|
||
|
|
// when this is called.
|
||
|
|
//
|
||
|
|
var addresses = interfaces[nic].filter(function(details) {
|
||
|
|
details.family = details.family.toLowerCase();
|
||
|
|
if (details.family !== family || isLoopback(details.address)) {
|
||
|
|
return false;
|
||
|
|
} else if (!name) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
return name === 'public' ? isPrivate(details.address) : isPublic(details.address);
|
||
|
|
});
|
||
|
|
|
||
|
|
return addresses.length ? addresses[0].address : undefined;
|
||
|
|
})
|
||
|
|
.filter(Boolean);
|
||
|
|
|
||
|
|
return !all.length ? loopback(family) : all[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
export default {
|
||
|
|
address,
|
||
|
|
};
|