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+++ b/index.html
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+<!DOCTYPE html>
+<html>
+    <head>
+        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    </head>
+    <body>
+        <h4>
+            Demo for:
+            <a href="https://github.com/diafygi/webrtc-ips">
+                https://github.com/diafygi/webrtc-ips
+            </a>
+        </h4>
+        <h4>Your local IP addresses:</h4>
+        <ul></ul>
+        <h4>Your public IP addresses:</h4>
+        <ul></ul>
+        <script>
+            //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;
+                var mediaConstraints = {
+                    optional: [{RtpDataChannels: true}, {DtlsSrtpKeyAgreement: false}]
+                };
+
+                //firefox already has a default stun server in about:config
+                //    media.peerconnection.default_iceservers =
+                //    [{"url": "stun:stun.services.mozilla.com"}]
+                var servers = undefined;
+
+                //add stun server for chrome
+                if(window.webkitRTCPeerConnection)
+                    servers = {iceServers: [{url: "stun:stun.l.google.com:19302"}]};
+
+                //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
+                    pc.setLocalDescription(result, function(){});
+
+                }, function(){});
+            }
+
+            //insert IP addresses into the page
+            getIPs(function(ip){
+                var li = document.createElement("li");
+                li.textContent = ip;
+
+                //local IPs (TODO: 172.16.0.0/12)
+                if(ip.indexOf("10.") === 0 || ip.indexOf("192.168.") === 0)
+                    document.getElementsByTagName("ul")[0].appendChild(li);
+
+                //assume the rest are public IPs
+                else
+                    document.getElementsByTagName("ul")[1].appendChild(li);
+            });
+        </script>
+    </body>
+</html>
