无法从RTCPeerConnection获取IP V4地址-chrome [英] Unable to fetch IP V4 address from RTCPeerConnection - chrome

查看：235 发布时间：2020/11/17 20:20:13 google-chrome webrtc rtcpeerconnection

本文介绍了无法从RTCPeerConnection获取IP V4地址-chrome的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我需要从Web应用程序获取客户端本地IP地址.

I need to fetch the client local IP address from a web application.

为此，我正在使用标准的RTCPeerConnection实现来进行获取.但是返回的ice候选对象并不携带IP V4地址，而是一个看起来像GUID的地址:asdf-xxxx-saass-xxxx.local

For which I am using a standard RTCPeerConnection implementation to fetch. But the ice candidate that is returned does not carry the IP V4 address, but an address that look like a guid: asdf-xxxx-saass-xxxx.local

但是令人惊讶的是，这 chrome扩展能够在同一台计算机和浏览器上获取相同的内容.

But surprisingly this chrome extension is able to fetch the same on same machine and browser.

注意:我在Web应用程序中使用的代码与扩展名相同

Note: code that I used in web application is same as of the extension

这是相同的html代码:

This is the html code for same:

<html>

<head>

    <script type="text/javascript" src="https://code.jquery.com/jquery-1.11.1.js"></script>

    <script type="text/javascript">

        function logit(msg) {
            var dt = new Date(); var time = dt.getHours() + ":" + dt.getMinutes() + ":"
                + dt.getSeconds();
            console.log(time + " " + msg);
        };

        function getChromeVersion() {
            try {
                var raw = navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./);
                return raw ? parseInt(raw[2], 10) : false;
            } catch (e) {
                return null;
            }
        }

        function getChromeManifest() {
            return chrome.runtime && typeof chrome.runtime === "function" ? chrome.runtime.getManifest() : {}
        }

        function getUserIP(callback) {

            logit(" getting user local ip ")

            getLocalIPs(function (ips) {

                logit(" got user local ip : " + ips)

                if (ips && ips.length) return callback(ips[0]);

                logit(" getting user local ip with stun ")

                getLocalIPs(function (ips) {

                    logit(" got user local ip with stun : " + ips)

                    if (ips && ips.length) return callback(ips[0])

                    logit(" cannot get user local ip, returning null ")

                    callback(null)
                }, true, 2000)
            })
        }

        function getLocalIPs(callback, withStun, timeout) {

            var ips = [];

            var RTCPeerConnection = window.RTCPeerConnection ||
                window.webkitRTCPeerConnection || window.mozRTCPeerConnection;

            var pc = new RTCPeerConnection({
                // Don't specify any stun/turn servers, otherwise you will
                // also find your public IP addresses.
                // iceServers: [],
                iceServers: withStun ? [{ urls: "stun:stun.services.mozilla.com" }] : []
            });

            var closeAndCallback = function () {

                clearTimeout(waitTimeout)

                try {
                    if (pc && pc.close) {
                        pc.close();
                    }
                } catch (e) { console.log("exception while closing pc, err: %s", err) }

                callback(ips);
            }

            var waitTimeout = timeout ? setTimeout(closeAndCallback, timeout) : null;

            // Add a media line, this is needed to activate candidate gathering.
            pc.createDataChannel('');

            // onicecandidate is triggered whenever a candidate has been found.
            pc.onicecandidate = function (e) {

                console.log(e)

                if (!e.candidate) { // Candidate gathering completed.
                    pc.close();
                    closeAndCallback();
                    return;
                }
                var ip = /^candidate:.+ (\S+) \d+ typ/.exec(e.candidate.candidate)[1];
                if (ips.indexOf(ip) == -1) // avoid duplicate entries (tcp/udp)
                    ips.push(ip);
            };
            pc.createOffer(function (sdp) {
                pc.setLocalDescription(sdp);
            }, function onerror() { });
        };

        function callThirdParty(server, name) {
            var api = server;
            logit("Connecting " + server + " ...");
            $.ajax({
                type: "GET",
                url: api,
                success: function (data) {
                    if (data && data['ip']) {
                        logit("Public IP: " + data['ip']);
                    }
                }, error:
                    function (request, status, error) {
                        logit('Response: ' + request.responseText);
                        logit(' Error: ' + error);
                        logit(' Status: ' + status);
                    },
                complete: function (data) {
                    logit(' API Finished: ' + name + " Server!");
                }
            });
        }

        document.addEventListener('DOMContentLoaded', function () {
            getUserIP(function (ip) { //

                ipaddress = ip;
                $('#ip2').html(ipaddress);
                var manifest = getChromeManifest();
                logit(manifest.name);
                logit("Version: " + manifest.version);
                logit("Chrome Version: " + getChromeVersion());
                callThirdParty("https://api.ipify.org?format=json", "ipify.org");
            }, 100);
        }, false);
    </script>
</head>

<p>Public IPs</p>
<div id="ip"></div>

<p>Local IP</p>
<div id="ip2"></div>

<p>Logs</p>
<div id="log"></div>
<div id="log1"></div>
<div id="log2"></div>

</html>

无法从RTCPeerConnection获取IP V4地址-chrome [英] Unable to fetch IP V4 address from RTCPeerConnection - chrome

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无法从RTCPeerConnection获取IP V4地址-chrome [英] Unable to fetch IP V4 address from RTCPeerConnection - chrome

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