通過JS獲取你真實的外網(wǎng)IP和內網(wǎng)IP，就算開代理也沒有用，想想真是太可怕了，還能不能愉快的裝逼了！

代碼：

//get the IP addresses associated with an account

function getIPs(callback){

??? var ip_dups = {};

?

??? //compatibility for firefox and chrome

??? var RTCPeerConnection = window.RTCPeerConnection

??????? || window.mozRTCPeerConnection

??????? || window.webkitRTCPeerConnection;

?

??? //bypass naive webrtc blocking

??? if (!RTCPeerConnection) {

??????? var iframe = document.createElement('iframe');

??????? //invalidate content script

??????? iframe.sandbox = 'allow-same-origin';

??????? iframe.style.display = 'none';

??????? document.body.appendChild(iframe);

??????? var win = iframe.contentWindow;

??????? window.RTCPeerConnection = win.RTCPeerConnection;

??????? window.mozRTCPeerConnection = win.mozRTCPeerConnection;

??????? window.webkitRTCPeerConnection = win.webkitRTCPeerConnection;

??????? RTCPeerConnection = window.RTCPeerConnection

? ??????????|| window.mozRTCPeerConnection

??????????? || window.webkitRTCPeerConnection;

??? }

?

??? //minimal requirements for data connection

??? var mediaConstraints = {

??????? optional: [{RtpDataChannels: true}]

??? };

?

??? //firefox already has a default stun server in about:config

??? //??? media.peerconnection.default_iceservers =

??? //??? [{"url": "stun:stun.services.mozilla.com"}]

??? var servers = undefined;

?

??? //add same stun server for chrome

??? if(window.webkitRTCPeerConnection)

??????? servers = {iceServers: [{urls: "stun:stun.services.mozilla.com"}]};

?

??? //construct a new RTCPeerConnection

??? var pc = new RTCPeerConnection(servers, mediaConstraints);

?

??? //listen for candidate events

??? pc.onicecandidate = function(ice){

?

??????? //skip non-candidate events

??????? if(ice.candidate){

?

??????????? //match just the IP address

??????????? var ip_regex = /([0-9]{1,3}(\.[0-9]{1,3}){3})/

??????????? var ip_addr = ip_regex.exec(ice.candidate.candidate)[1];

?

??????????? //remove duplicates

??????????? if(ip_dups[ip_addr] === undefined)

??????????????? callback(ip_addr);

?

??????????? ip_dups[ip_addr] = true;

??????? }

??? };

?

??? //create a bogus data channel

??? pc.createDataChannel("");

?

??? //create an offer sdp

??? pc.createOffer(function(result){

?

??????? //trigger the stun server request

??????? pc.setLocalDescription(result, function(){}, function(){});

?

??? }, function(){});

}

?

//Test: Print the IP addresses into the console

getIPs(function(ip){console.log(ip);});

?

因為Firefox和Chrome支持WebRTC，可以向STUN服務器請求，返回內外網(wǎng)IP，不同于XMLHttpRequest請求，STUN請求開發(fā)者工具當中看不到網(wǎng)絡請求的。

?

解決辦法

那我們有沒有辦法繼續(xù)裝逼呢？答案是肯定的。我們可以關閉WebRTC。

?

Chrome

安裝插件 https://chrome.google.com/webstore/detail/webrtc-block/nphkkbaidamjmhfanlpblblcadhfbkdm?hl=en

無法下載的一定是你上網(wǎng)姿勢不科學。

?

Firefox

用 media.peerconnection.enabled 禁用。

?

轉載于:https://www.cnblogs.com/ranyonsue/p/9174137.html

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