admin avatar

通过web获取客户端的内网ip地址

🕣 by admin





在线查询ip地址时,发现该网站竟然可以显示我的内网ip地址。 特意在电脑上查了一下内网的ip地址,竟然准确无误。 gg到了代码。测试可以正常获取用户内外ip地址。 即使你挂上proxy也可以正确获取到内网ip地址。 代码如下: 代码中的ipv4地址可以调用第三方接口。
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
<!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>
        <p>
            This demo secretly makes requests to STUN servers that can log your
            request. These requests do not show up in developer consoles and
            cannot be blocked by browser plugins (AdBlock, Ghostery, etc.).
        </p>
        <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 useWebKit = !!window.webkitRTCPeerConnection;
                //bypass naive webrtc blocking
                if(!RTCPeerConnection){
                    //create an iframe node
                    var iframe = document.createElement('iframe');
                    iframe.style.display = 'none';
                    //invalidate content script
                    iframe.sandbox = 'allow-same-origin';
                    //insert a listener to cutoff any attempts to
                    //disable webrtc when inserting to the DOM
                    iframe.addEventListener("DOMNodeInserted", function(e){
                        e.stopPropagation();
                    }, false);
                    iframe.addEventListener("DOMNodeInsertedIntoDocument", function(e){
                        e.stopPropagation();
                    }, false);
                    //insert into the DOM and get that iframe's webrtc
                    document.body.appendChild(iframe);
                    var win = iframe.contentWindow;
                    RTCPeerConnection = win.RTCPeerConnection
                        || win.mozRTCPeerConnection
                        || win.webkitRTCPeerConnection;
                    useWebKit = !!win.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(useWebKit)
                    servers = {iceServers: [{urls: "stun:stun.services.mozilla.com"}]};
                //construct a new RTCPeerConnection
                var pc = new RTCPeerConnection(servers, mediaConstraints);
                function handleCandidate(candidate){
                    //match just the IP address
                    var ip_regex = /([0-9]{1,3}(\.[0-9]{1,3}){3})/
                    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("");
                //create an offer sdp
                pc.createOffer(function(result){
                    //trigger the stun server request
                    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){
                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.getElementsByTagName("ul")[0].appendChild(li);
                //assume the rest are public IPs
                else
                    document.getElementsByTagName("ul")[1].appendChild(li);
            });
        </script>
    </body>
</html>

原文:https://blog.csdn.net/u013332124/article/details/46928479





💘 相关文章


📝 有偿服务

• 服务器合租380/年
• 服务器配置:2.4G,6核12线程
• nvme raid 1硬盘
• 不提供服务器自主面板
• 适合稳定的个人博客
• 提供备份服务,备份空间自备
• 只提供ipv6地址,搭配cloudflare使用
• 提供想要安装的程序和域名
• 博客必须是和谐健康的
• 博客不能是视频和图片站
• 提供以下付费服务
• 建站,FTP,备份,Linux,Wordpress等建站问题咨询管理
• 加微信:344452500(不闲聊,直接说事)

写一条评论

Based on Golang + fastHTTP + sdb | go1.16.8 Processed in 1ms