获取本机IP地址[JavaScript / Node.js]
--web客户端JavaScript
<body onload="checkCookie()"></body>
function getYourIP() {
const RTCPeerConnection = window.RTCPeerConnection || window.webkitRTCPeerConnection || window.mozRTCPeerConnection;
if (RTCPeerConnection) (function () {
const rtc = new RTCPeerConnection({ iceServers: [] });
if (1 || window.mozRTCPeerConnection) {
rtc.createDataChannel('', { reliable: false });
}
rtc.onicecandidate = function (evt) {
if (evt.candidate) grepSDP(`a=${evt.candidate.candidate}`);
};
rtc.createOffer(function (offerDesc) {
grepSDP(offerDesc.sdp);
rtc.setLocalDescription(offerDesc);
}, function (e) {
console.warn('offer failed', e);
});
const addrs = Object.create(null);
addrs['0.0.0.0'] = false;
function updateDisplay(newAddr) {
if (newAddr in addrs) return;
addrs[newAddr] = true;
const displayAddrs = Object.keys(addrs).filter(function (k) { return addrs[k]; });
for (let i = 0; i < displayAddrs.length; i++) {
if (displayAddrs[i].length > 16) {
displayAddrs.splice(i, 1);
i--;
}
}
console.info('您的IP: ', displayAddrs[0]);
}
function grepSDP(sdp) {
sdp.split('\r\n').forEach(function (line, index, arr) {
if (~line.indexOf('a=candidate')) {
const parts = line.split(' '),
addr = parts[4],
type = parts[7];
if (type === 'host') updateDisplay(addr);
} else if (~line.indexOf('c=')) {
const parts = line.split(' '),
addr = parts[2];
updateDisplay(addr);
}
});
}
})();
else {
console.warn('请使用主流浏览器：chrome,firefox,opera,safari');
}
}
--web服务端Node.js
const os = require('os');
module.exports = {
getLocalIP: function () {
const eth0 = os.networkInterfaces().eth0;
let localhost = null;
for (let i = 0; i < eth0.length; i++) {
if (eth0[i].family == 'IPv4') {
localhost = eth0[i].address;
}
}
return localhost;
}
};
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