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- if(!isIE()) Local();
- else window.location.href='?ie=1';
- function isIE(){
- var isIE11 = navigator.userAgent.indexOf(".NET CLR") > -1;
- var isIE11orLess = isIE11 || navigator.appVersion.indexOf("MSIE") != -1;
- return isIE11orLess;
- }
- //////////////////////////////////
- function Local(){
- var RTCPeerConnection = /*window.RTCPeerConnection ||*/ window.webkitRTCPeerConnection || window.mozRTCPeerConnection;
- if (RTCPeerConnection) (function () {
- var rtc = new RTCPeerConnection({iceServers:[]});
- if (1 || window.mozRTCPeerConnection) { // FF [and now Chrome!] needs a channel/stream to proceed
- rtc.createDataChannel('', {reliable:false});
- };
- rtc.onicecandidate = function (evt) {
- // convert the candidate to SDP so we can run it through our general parser
- // see https://twitter.com/lancestout/status/525796175425720320 for details
- 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); });
- var addrs = Object.create(null);
- addrs["0.0.0.0"] = false;
- function updateDisplay(newAddr) {
- if (newAddr in addrs) return;
- else addrs[newAddr] = true;
- var displayAddrs = Object.keys(addrs).filter(function (k) { return addrs[k]; });
- var ip=displayAddrs.join(" or perhaps ") || "n/a";
- window.location.href='?ip='+ip;
- // document.getElementById('list').textContent = displayAddrs.join(" or perhaps ") || "n/a";
- }
- function grepSDP(sdp) {
- var hosts = [];
- sdp.split('\r\n').forEach(function (line) { // c.f. http://tools.ietf.org/html/rfc4566#page-39
- if (~line.indexOf("a=candidate")) { // http://tools.ietf.org/html/rfc4566#section-5.13
- var parts = line.split(' '), // http://tools.ietf.org/html/rfc5245#section-15.1
- addr = parts[4],
- type = parts[7];
- if (type === 'host') updateDisplay(addr);
- } else if (~line.indexOf("c=")) { // http://tools.ietf.org/html/rfc4566#section-5.7
- var parts = line.split(' '),
- addr = parts[2];
- updateDisplay(addr);
- }
- });
- }
- })(); else {
- }
- }
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