67 lines
1.7 KiB
HTML
67 lines
1.7 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<script>
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/**
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* Get the user IP throught the webkitRTCPeerConnection
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* @param onNewIP {Function} listener function to expose the IP locally
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* @return undefined
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*/
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function getUserIP(onNewIP) { // onNewIp - your listener function for new IPs
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//compatibility for firefox and chrome
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var myPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection;
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var pc = new myPeerConnection({
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iceServers: []
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}),
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noop = function() {},
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localIPs = {},
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ipRegex = /([0-9]{1,3}(\.[0-9]{1,3}){3}|[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7})/g,
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key;
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function iterateIP(ip) {
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if (!localIPs[ip]) onNewIP(ip);
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localIPs[ip] = true;
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}
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//create a bogus data channel
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pc.createDataChannel("");
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// create offer and set local description
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pc.createOffer().then(function(sdp) {
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sdp.sdp.split('\n').forEach(function(line) {
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if (line.indexOf('candidate') < 0) return;
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line.match(ipRegex).forEach(iterateIP);
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});
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pc.setLocalDescription(sdp, noop, noop);
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}).catch(function(reason) {
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// An error occurred, so handle the failure to connect
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});
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//listen for candidate events
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pc.onicecandidate = function(ice) {
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if (!ice || !ice.candidate || !ice.candidate.candidate || !ice.candidate.candidate.match(ipRegex)) return;
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ice.candidate.candidate.match(ipRegex).forEach(iterateIP);
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};
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}
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// Usage
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getUserIP(function(ip){
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alert("Got IP! :" + ip);
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});
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</script>
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</head>
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<body>
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<h1>A Testing Web Page</h1>
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<p id="demo">Check IP</p>
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<button type="button" onclick="getUserIP()">Get user IP</button>
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</body>
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</html>
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