JavaScript检测浏览器

Detect Browser

<!DOCTYPE html>

<html>

<head>

    <meta charset="UTF-8">

    <title>detect browser</title>

</head>

<body>

    <div id="welcome">

        <p>欢迎使用 <b></b> detect browser</p>

    </div>

    //使用whatismybrowser网站检测

    <iframe src ="https://www.whatismybrowser.com/feature/iframe?size=small&bgcolor=BFBFB0&color=3E4759&bordercolor=8C7268&capabilities=true&screen=true&ip_address=true&viewmore=true" width ="340" height ="330" style ="border：none;"></iframe>

    <script type="text/javascript">

        window.onload=function(){

            console.log("start:");

            //检测无头浏览器

            if (/HeadlessChrome/.test(window.navigator.userAgent)) {

                console.log("Chrome headless detected");

            }

            if(navigator.plugins.length == 0) {

                console.log("It may be Chrome headless");

            }

            if(navigator.languages == "") {

                console.log("Chrome headless detected");

            }

            var canvas = document.createElement('canvas');

            var gl = canvas.getContext('webgl');

            var debugInfo = gl.getExtension('WEBGL_debug_renderer_info');

            var vendor = gl.getParameter(debugInfo.UNMASKED_VENDOR_WEBGL);

            var renderer = gl.getParameter(debugInfo.UNMASKED_RENDERER_WEBGL);

            if(vendor == "Brian Paul" && renderer == "Mesa OffScreen") {

                console.log("Chrome headless detected");

            }

            // if(!Modernizr["hairline"]) {

            //     console.log("It may be Chrome headless");

            // }

            var body = document.getElementsByTagName("body")[0];

            var image = document.createElement("img");

            image.src = "https://ss0.bdstatic.com/70cFuHSh_Q1YnxGkpoWK1HF6hhy/it/u=144388917,3393541021&fm=27&gp=0.jpg";

            image.setAttribute("id", "fakeimage");

            body.appendChild(image);

            image.onerror = function(){

                if(image.width == 0 && image.height == 0) {

                    console.log("Chrome headless detected");

                }

            }

            // 判断浏览器

            // Opera 8.0+

            var isOpera = (!!window.opr && !!opr.addons) || !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;

            // Firefox 1.0+

            var isFirefox = typeof InstallTrigger !== 'undefined';

            // Safari 3.0+ "[object HTMLElementConstructor]"

            var isSafari = /constructor/i.test(window.HTMLElement) || (function (p) { return p.toString() === "[object SafariRemoteNotification]"; })(!window['safari'] || (typeof safari !== 'undefined' && safari.pushNotification));

            // Internet Explorer 6-11

            var isIE = /*@cc_on!@*/false || !!document.documentMode;

            // Edge 20+

            var isEdge = !isIE && !!window.StyleMedia;

            // Chrome 1 - 71

            var isChrome = !!window.chrome && (!!window.chrome.webstore || !!window.chrome.runtime);

            // Blink engine detection

            var isBlink = (isChrome || isOpera) && !!window.CSS;

            var output = 'Detecting browsers by ducktyping:<hr>';

            output += 'isFirefox: ' + isFirefox + '<br>';

            output += 'isChrome: ' + isChrome + '<br>';

            output += 'isSafari: ' + isSafari + '<br>';

            output += 'isOpera: ' + isOpera + '<br>';

            output += 'isIE: ' + isIE + '<br>';

            output += 'isEdge: ' + isEdge + '<br>';

            output += 'isBlink: ' + isBlink + '<br>';

            console.log(output);

            //浏览器、版本、操作系统检测

            var BrowserDetect = {

                init: function() {

        		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";

        		this.version = this.searchVersion(navigator.userAgent) || this.searchVersion(navigator.appVersion) || "an unknown version";

        		this.OS = this.searchString(this.dataOS) || "an unknown OS";

                console.log(this.browser);

                console.log(this.version);

                console.log(this.OS);

        	},

        	searchString: function(data) {

        		for (var i = 0; i < data.length; i++) {

        			var dataString = data[i].string;

        			var dataProp = data[i].prop;

        			this.versionSearchString = data[i].versionSearch || data[i].identity;

        			if (dataString) {

        				if (dataString.indexOf(data[i].subString) != -1) return data[i].identity;

        			} else if (dataProp) return data[i].identity;

        		}

        	},

        	searchVersion: function(dataString) {

        		var index = dataString.indexOf(this.versionSearchString);

        		if (index == -1) return;

        		return parseFloat(dataString.substring(index + this.versionSearchString.length + 1));

        	},

        	dataBrowser: [{

        		string: navigator.userAgent,

        		subString: "Chrome",

        		identity: "Chrome"

        	}, {

        		string: navigator.userAgent,

        		subString: "OmniWeb",

        		versionSearch: "OmniWeb/",

        		identity: "OmniWeb"

        	}, {

        		string: navigator.vendor,

        		subString: "Apple",

        		identity: "Safari",

        		versionSearch: "Version"

        	}, {

        		prop: window.opera,

        		identity: "Opera",

        		versionSearch: "Version"

        	}, {

        		string: navigator.vendor,

        		subString: "iCab",

        		identity: "iCab"

        	}, {

        		string: navigator.vendor,

        		subString: "KDE",

        		identity: "Konqueror"

        	}, {

        		string: navigator.userAgent,

        		subString: "Firefox",

        		identity: "Firefox"

        	}, {

        		string: navigator.vendor,

        		subString: "Camino",

        		identity: "Camino"

        	}, { // for newer Netscapes (6+)

        		string: navigator.userAgent,

        		subString: "Netscape",

        		identity: "Netscape"

        	}, {

        		string: navigator.userAgent,

        		subString: "MSIE",

        		identity: "Explorer",

        		versionSearch: "MSIE"

        	}, {

        		string: navigator.userAgent,

        		subString: "Gecko",

        		identity: "Mozilla",

        		versionSearch: "rv"

        	}, { // for older Netscapes (4-)

        		string: navigator.userAgent,

        		subString: "Mozilla",

        		identity: "Netscape",

        		versionSearch: "Mozilla"

        	}],

        	dataOS: [{

        		string: navigator.platform,

        		subString: "Win",

        		identity: "Windows"

        	}, {

        		string: navigator.platform,

        		subString: "Mac",

        		identity: "Mac"

        	}, {

        		string: navigator.userAgent,

        		subString: "iPhone",

        		identity: "iPhone/iPod"

        	}, {

        		string: navigator.platform,

        		subString: "Linux",

        		identity: "Linux"

        	}]

        };

        BrowserDetect.init();

        // mobile

        var isMobile = {

            Android: function() {

                return navigator.userAgent.match(/Android/i);

            },

            BlackBerry: function() {

                return navigator.userAgent.match(/BlackBerry/i);

            },

            iOS: function() {

                return navigator.userAgent.match(/iPhone|iPad|iPod/i);

            },

            Opera: function() {

                return navigator.userAgent.match(/Opera Mini/i);

            },

            Windows: function() {

                return navigator.userAgent.match(/IEMobile/i);

            },

            any: function() {

                return (isMobile.Android() || isMobile.BlackBerry() || isMobile.iOS() || isMobile.Opera() || isMobile.Windows());

            }

        };

        console.log("end!");

    }

    //判断Chromium

    function isChromium()

    {

        for (var i = 0, u="Chromium", l =u.length; i < navigator.plugins.length; i++)

        {

            if (navigator.plugins[i].name != null && navigator.plugins[i].name.substr(0, l) === u)

                return true;

        }

        return false;

    }

    </script>

</body>

</html>

参考链接

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JavaScript检测浏览器

Detect Browser

参考链接

JavaScript检测浏览器的更多相关文章

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