generates a browser id string

browserSupport.js

    /**
     * Generate a browser fingerprint
     *
     **/
    browserId : function()
    {
        var browserId = {};

        if ( !!window.chrome && !( !!window.opera ) )
        {
            if ( !!window.chrome && !!window.chrome.webstore )
            {
                browserId = { f: 'chrome', v: 'Chrome 14+' }; // Chrome 14+
            }

            browserId = { f: 'chrome', v: 'Chrome 13- Android 4.0.4' }; // Chrome 13- Opera 14+ Android 4.0.4
        }
        else if ( !!window.sidebar )
        {
            if ( !!window.globalStorage )
            {
                if ( (function x(){})[-6]==='x' )
                {
                    browserId = { f: 'firefox', v: 'Firefox 2' }; // firefox 2
                }
                else if ( (function x(){})[-5]=='x' )
                {
                    browserId = { f: 'firefox', v: 'Firefox 3' }; // firefox 3
                }

                browserId = { f: 'firefox', v: 'Firefox 2-13' }; // firefox 2-13
            }
            
            browserId = { f: 'firefox', v: 'Firefox 14+' }; // Firefox 14+
        }
        else if ( document.all && window.XMLHttpRequest )
        {
            if ( document.all && document.querySelector )
            {
                if ( document.all && document.addEventListener )
                {
                    if ( document.all && window.atob )
                    {
                        browserId = { f: 'ie', v: 'IE 10' }; // IE 10
                    }

                    browserId = { f: 'ie', v: 'IE 9' }; // IE 9
                }

                browserId = { f: 'ie', v: 'IE 8' }; // IE 8
            }
            browserId = { f: 'ie', v: 'IE 7' }; // IE 7
        }
        else if ( '-ms-scroll-limit' in document.documentElement.style && '-ms-ime-align' in document.documentElement.style )
        {
            browserId = { f: 'ie', v: 'IE 11' }; // IE 11
        }
        else if ( !!window.opera || /opera|opr/i.test(navigator.userAgent ) )
        {
            if ( !!window.chrome )
            {
                browserId = { f: 'opera', v: 'opera 14+' }; // opera 14+
            }
            else if ( !!window.opera )
            {
                browserId = { f: 'opera', v: 'opera 12-' }; // opera 12-
            }

            browserId = { f: 'opera', v: 'opera 13' }; // opera 13
        }
        else if ( Object.prototype.toString.call(window.operamini) === '[object OperaMini]' )
        {
            browserId = { f: 'opera', v: 'Opera Mini' }; // Opera Mini
        }
        else if ( /constructor/i.test(window.HTMLElement) )
        {
            if ( 'WebkitAppearance' in document.documentElement.style )
            {
                if ( /a/.__proto__=='//' )
                {
                    browserId = { f: 'safari', v: 'Safari 4-5' }; // Safari 4-5
                }
                else if ( !!navigator.userAgent.match(/safari/i) && !navigator.userAgent.match(/chrome/i) && !window.chrome )
                {
                    browserId = { f: 'safari', v: 'Safari 6+' }; // Safari 6+
                }

                browserId = { f: 'safari', v: 'Safari 3' }; // Safari 3
            }

            browserId = { f: 'safari', v: 'Safari 2-' }; // Safari 2-
        }
        else
        {
            browserId = { f: 'unknown', v: 'unknown' };
        }

        var browserIdString = navigator.appName + // prob. Netscape
        navigator.appCodeName + // prob. returns Mozilla

        navigator.appVersion + // UA string
        navigator.userAgent + // UA string
        navigator.product + // engine
        navigator.productSub + // engine version

        window.navigator.vendor + // browser vendor

        navigator.cookieEnabled + // cookies enabled

        navigator.doNotTrack; // do not track setting

        // if not unidentified
        // document.cookie // cookie

        for ( plugin in navigator.plugins ) // object - plugin list
        {
            var p = navigator.plugins[ plugin ];

            for ( property in p )
            {
                var pro = p[ property ];

                if ( ( typeof pro === 'string' ) || ( typeof pro === 'number' ) )
                {
                    browserIdString += plugin[ property ];
                }
                else if ( typeof pro === 'object' )
                {
                    for ( subPro in pro )
                    {
                        if ( typeof pro[ subPro ] === 'string' )
                        {
                            browserIdString += pro[ subPro ];
                        }
                        // ignores objects and functions
                    }
                }
                // ignores functions
            }
        }

        browserId.browserIdString  = browserIdString;

        fingerprint.vars.browser = browserId;

        return browserIdString;

    },