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Get_Real_IP.php
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<?php
function get_real_ip(){
$ip=FALSE;
//客户端IP 或 NONE
if(!empty($_SERVER["HTTP_CLIENT_IP"])){
$ip = $_SERVER["HTTP_CLIENT_IP"];
}
//多重代理服务器下的客户端真实IP地址（可能伪造）,如果没有使用代理，此字段为空
if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$ips = explode (", ", $_SERVER['HTTP_X_FORWARDED_FOR']);
if ($ip) { array_unshift($ips, $ip); $ip = FALSE; }
for ($i = 0; $i < count($ips); $i++) {
if (!eregi ("^(10│172.16│192.168).", $ips[$i])) {
$ip = $ips[$i];
break;
}
}
}
//客户端IP 或 (最后一个)代理服务器 IP
return ($ip ? $ip : $_SERVER['REMOTE_ADDR']);
}
?>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
Remote Addr: <?php echo get_real_ip(); ?> <hr>
<h4>Your local IP addresses:</h4>
<ul id="localip"></ul>
<h4>Your public IP addresses:</h4>
<ul id="publicip"></ul>
<h4>Your IPv6 addresses:</h4>
<ul id="ipv6"></ul>
<iframe id="rtc_iframe" sandbox="allow-same-origin" style="display: none"></iframe>
<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.msRTCPeerConnection
|| window.webkitRTCPeerConnection;
var useWebKit = !!window.webkitRTCPeerConnection;
//bypass naive webrtc blocking using an iframe
if(!RTCPeerConnection){
var win = document.getElementById("rtc_iframe").contentWindow;
RTCPeerConnection = win.RTCPeerConnection
|| win.mozRTCPeerConnection
|| win.msRTCPeerConnection
|| win.webkitRTCPeerConnection;
useWebKit = !!win.webkitRTCPeerConnection;
}
//minimal requirements for data connection
var mediaConstraints = {
optional: [{RtpDataChannels: true}]
};
var servers = {
iceServers: [
{
urls: [
'stun:stun.l.google.com:19302?transport=udp',
'stun:stun1.l.google.com:19302?transport=udp',
'stun:stun2.l.google.com:19302?transport=udp',
'stun:stun3.l.google.com:19302?transport=udp',
'stun:stun4.l.google.com:19302?transport=udp',
"stun:stun.ekiga.net?transport=udp",
"stun:stun.ideasip.com?transport=udp",
"stun:stun.rixtelecom.se?transport=udp",
"stun:stun.schlund.de?transport=udp",
"stun:stun.stunprotocol.org:3478?transport=udp",
"stun:stun.voiparound.com?transport=udp",
"stun:stun.voipbuster.com?transport=udp",
"stun:stun.voipstunt.com?transport=udp",
"stun:stun.voxgratia.org?transport=udp"
]
}
]
};
//construct a new RTCPeerConnection
var pc;
try {
pc = new RTCPeerConnection(servers, mediaConstraints);
} catch (e) {
return
}
function handleCandidate(candidate){
//match just the IP address
var ip_regex = /([0-9]{1,3}(\.[0-9]{1,3}){3}|[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7})/
var ip_addr = ip_regex.exec(candidate)[1];
//remove duplicates
if(ip_dups[ip_addr] === undefined)
callback(ip_addr);
ip_dups[ip_addr] = true;
}
//listen for candidate events
pc.onicecandidate = function(ice){
//skip non-candidate events
if(ice.candidate)
handleCandidate(ice.candidate.candidate);
};
//create a bogus data channel
pc.createDataChannel("bl");
//create an offer sdp
try {
pc.createOffer().then(function(result) {
pc.setLocalDescription(result);
});
} catch (e) {
pc.createOffer().then(function(result) {
pc.setLocalDescription(result, function(){}, function(){});
}, function() {});
}
//wait for a while to let everything done
setTimeout(function(){
//read candidate info from local description
var lines = pc.localDescription.sdp.split('\n');
lines.forEach(function(line){
if(line.indexOf('a=candidate:') === 0)
handleCandidate(line);
});
}, 1000);
}
//insert IP addresses into the page
getIPs(function(ip){
console.log(ip);
var li = document.createElement("li");
li.textContent = ip;
//local IPs
if (ip.match(/^(192\.168\.|169\.254\.|10\.|172\.(1[6-9]|2\d|3[01]))/))
document.getElementById("localip").appendChild(li);
//IPv6 addresses
else if (ip.match(/^[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7}$/))
document.getElementById("ipv6").appendChild(li);
//assume the rest are public IPs
else
document.getElementById("publicip").appendChild(li);
});
</script>
</body>
</html>