/**
* @overview Fingerprintjs2 - Modern & flexible browser fingerprint library v2
* @module Fingerprintjs2
* @version 0.0.5 of version 2
* @author Valentin Vasilyev (valentin.vasilyev@outlook.com)
* {@link https://github.com/Valve/fingerprintjs2}
*
* @copyright Copyright (c) 2015 Valentin Vasilyev (valentin.vasilyev@outlook.com)
* @license MIT
*/
/**
*
*/
(function (name, context, definition) {
"use strict";
if (typeof module !== "undefined" && module.exports) { module.exports = definition(); }
else if (typeof define === "function" && define.amd) { define(definition); }
else { context[name] = definition(); }
})("Fingerprint2", this, function() {
"use strict";
var DEBUG = true;
var Fingerprint2 = function(options) {
var defaultOptions = {
swfContainerId: "fingerprintjs2",
swfPath: "flash/compiled/FontList.swf"
};
this.options = this.extend(options, defaultOptions);
this.nativeForEach = Array.prototype.forEach;
this.nativeMap = Array.prototype.map;
};
/** @constructor */
Fingerprint2.prototype = {
extend: function(source, target) {
if (source === null) { return target; }
for (var k in source) {
if(source[k] !== null && target[k] !== source[k]) {
target[k] = source[k];
}
}
return target;
},
log: function(msg){
if(window.console){
console.log(msg);
}
},
get: function(done){
var keys = [];
keys = this.userAgentKey(keys);
keys = this.languageKey(keys);
keys = this.colorDepthKey(keys);
keys = this.screenResolutionKey(keys);
keys = this.timezoneOffsetKey(keys);
keys = this.sessionStorageKey(keys);
keys = this.localStorageKey(keys);
keys = this.indexedDbKey(keys);
keys = this.addBehaviorKey(keys);
keys = this.openDatabaseKey(keys);
keys = this.cpuClassKey(keys);
keys = this.platformKey(keys);
keys = this.doNotTrackKey(keys);
keys = this.canvasKey(keys);
var that = this;
this.fontsKey(keys, function(newKeys){
var murmur = that.x64hash128(newKeys.join("~~~"), 31);
return done(murmur);
});
},
userAgentKey: function(keys) {
if(!this.options.excludeUserAgent) {
keys.push(navigator.userAgent);
}
return keys;
},
languageKey: function(keys) {
if(!this.options.excludeLanguage) {
keys.push(navigator.language);
}
return keys;
},
colorDepthKey: function(keys) {
if(!this.options.excludeColorDepth) {
keys.push(screen.colorDepth);
}
return keys;
},
screenResolutionKey: function(keys) {
if(!this.options.excludeScreenResolution) {
var resolution = this.getScreenResolution();
if (typeof resolution !== "undefined"){ // headless browsers, such as phantomjs
keys.push(resolution.join("x"));
}
}
return keys;
},
getScreenResolution: function () {
var resolution;
if(this.options.detectScreenOrientation) {
resolution = (screen.height > screen.width) ? [screen.height, screen.width] : [screen.width, screen.height];
} else {
resolution = [screen.height, screen.width];
}
return resolution;
},
timezoneOffsetKey: function(keys) {
if(!this.options.excludeTimezoneOffset) {
keys.push(new Date().getTimezoneOffset());
}
return keys;
},
sessionStorageKey: function(keys) {
if(!this.options.excludeSessionStorage && this.hasSessionStorage()) {
keys.push("sessionStorageKey");
}
return keys;
},
localStorageKey: function(keys) {
if(!this.options.excludeSessionStorage && this.hasLocalStorage()) {
keys.push("localStorageKey");
}
return keys;
},
indexedDbKey: function(keys) {
if(!this.options.excludeIndexedDB && this.hasIndexedDB()) {
keys.push("indexedDbKey");
}
return keys;
},
addBehaviorKey: function(keys) {
//body might not be defined at this point or removed programmatically
if(document.body && !this.options.excludeAddBehavior && document.body.addBehavior) {
keys.push("addBehaviorKey");
}
return keys;
},
openDatabaseKey: function(keys) {
if(!this.options.excludeOpenDatabase && window.openDatabase) {
keys.push("openDatabase");
}
return keys;
},
cpuClassKey: function(keys) {
if(!this.options.excludeCpuClass) {
keys.push(this.getNavigatorCpuClass());
}
return keys;
},
platformKey: function(keys) {
if(!this.options.excludePlatform) {
keys.push(this.getNavigatorPlatform());
}
return keys;
},
doNotTrackKey: function(keys) {
if(!this.options.excludeDoNotTrack) {
keys.push(this.getDoNotTrack());
}
return keys;
},
canvasKey: function(keys) {
if(!this.options.excludeCanvas && this.isCanvasSupported()) {
keys.push(this.getCanvasFp());
}
return keys;
},
fontsKey: function(keys, done) {
if(this.options.excludeJsFonts) {
if(DEBUG) {
this.log("Skipping js fonts detection per excludeJsFonts configuration option");
}
return done(keys);
}
return done(this.jsFontsKey(keys));
},
// kudos to http://www.lalit.org/lab/javascript-css-font-detect/
jsFontsKey: function(keys) {
// a font will be compared against all the three default fonts.
// and if it doesn't match all 3 then that font is not available.
var baseFonts = ["monospace", "sans-serif", "serif"];
//we use m or w because these two characters take up the maximum width.
// And we use a LLi so that the same matching fonts can get separated
var testString = "mmmmmmmmmmlli";
//we test using 72px font size, we may use any size. I guess larger the better.
var testSize = "72px";
var h = document.getElementsByTagName("body")[0];
// create a SPAN in the document to get the width of the text we use to test
var s = document.createElement("span");
s.style.fontSize = testSize;
s.innerHTML = testString;
var defaultWidth = {};
var defaultHeight = {};
for (var index in baseFonts) {
//get the default width for the three base fonts
s.style.fontFamily = baseFonts[index];
h.appendChild(s);
defaultWidth[baseFonts[index]] = s.offsetWidth; //width for the default font
defaultHeight[baseFonts[index]] = s.offsetHeight; //height for the defualt font
h.removeChild(s);
}
var detect = function (font) {
var detected = false;
for (var index in baseFonts) {
s.style.fontFamily = font + "," + baseFonts[index]; // name of the font along with the base font for fallback.
h.appendChild(s);
var matched = (s.offsetWidth !== defaultWidth[baseFonts[index]] || s.offsetHeight !== defaultHeight[baseFonts[index]]);
h.removeChild(s);
detected = detected || matched;
}
return detected;
};
var fontList = ["Arial Black", "Arial Narrow", "Arial Rounded MT Bold", "Arial", "Bookman Old Style", "Bradley Hand ITC", "Century Gothic", "Century", "Comic Sans MS", "Courier New", "Courier", "Cursive", "Fantasy", "Gentium", "Georgia", "Impact", "King", "Lalit", "Lucida Console", "Modena", "Monospace", "Monotype Corsiva", "Papyrus", "Sans-Serif", "Serif", "Tahoma", "TeX", "Times New Roman", "Times", "Trebuchet MS", "Verdana", "Verona"];
var available = [];
for (var i = 0, l = fontList.length; i < l; i++) {
if(detect(fontList[i])) {
available.push(fontList[i]);
}
}
keys.push(available.join(";"));
return keys;
},
hasSessionStorage: function () {
try {
return !!window.sessionStorage;
} catch(e) {
return true; // SecurityError when referencing it means it exists
}
},
// https://bugzilla.mozilla.org/show_bug.cgi?id=781447
hasLocalStorage: function () {
try {
return !!window.localStorage;
} catch(e) {
return true; // SecurityError when referencing it means it exists
}
},
hasIndexedDB: function (){
return !!window.indexedDB;
},
getNavigatorCpuClass: function () {
if(navigator.cpuClass){
return "navigatorCpuClass: " + navigator.cpuClass;
} else {
return "navigatorCpuClass: unknown";
}
},
getNavigatorPlatform: function () {
if(navigator.platform) {
return "navigatorPlatform: " + navigator.platform;
} else {
return "navigatorPlatform: unknown";
}
},
getDoNotTrack: function () {
if(navigator.doNotTrack) {
return "doNotTrack: " + navigator.doNotTrack;
} else {
return "doNotTrack: unknown";
}
},
getCanvasFp: function() {
// Very simple now, need to make it more complex (geo shapes etc)
var canvas = document.createElement("canvas");
var ctx = canvas.getContext("2d");
// https://www.browserleaks.com/canvas#how-does-it-work
var txt = "Cwm fjordbank glyphs vext quiz, https://github.com/valve ὠ";
ctx.textBaseline = "top";
ctx.font = "70px 'Arial'";
ctx.textBaseline = "alphabetic";
ctx.fillStyle = "#f60";
ctx.fillRect(125, 1, 62, 20);
ctx.fillStyle = "#069";
ctx.fillText(txt, 2, 15);
ctx.fillStyle = "rgba(102, 204, 0, 0.7)";
ctx.fillText(txt, 4, 17);
return canvas.toDataURL();
},
isCanvasSupported: function () {
var elem = document.createElement("canvas");
return !!(elem.getContext && elem.getContext("2d"));
},
hasSwfObjectLoaded: function(){
return typeof window.swfobject !== "undefined";
},
hasMinFlashInstalled: function () {
return swfobject.hasFlashPlayerVersion("9.0.0");
},
addFlashDivNode: function() {
var node = document.createElement("div");
node.setAttribute("id", this.options.swfContainerId);
document.body.appendChild(node);
},
loadSwfAndDetectFonts: function(done) {
var hiddenCallback = "___fp_swf_loaded";
window[hiddenCallback] = function(fonts) {
done(fonts);
};
var id = this.options.swfContainerId;
this.addFlashDivNode();
var flashvars = { onReady: hiddenCallback};
var flashparams = { allowScriptAccess: "always", menu: "false" };
swfobject.embedSWF(this.options.swfPath, id, "1", "1", "9.0.0", false, flashvars, flashparams, {});
},
each: function (obj, iterator, context) {
if (obj === null) {
return;
}
if (this.nativeForEach && obj.forEach === this.nativeForEach) {
obj.forEach(iterator, context);
} else if (obj.length === +obj.length) {
for (var i = 0, l = obj.length; i < l; i++) {
if (iterator.call(context, obj[i], i, obj) === {}) { return; }
}
} else {
for (var key in obj) {
if (obj.hasOwnProperty(key)) {
if (iterator.call(context, obj[key], key, obj) === {}) { return; }
}
}
}
},
map: function(obj, iterator, context) {
var results = [];
// Not using strict equality so that this acts as a
// shortcut to checking for `null` and `undefined`.
if (obj === null) { return results; }
if (this.nativeMap && obj.map === this.nativeMap) { return obj.map(iterator, context); }
this.each(obj, function(value, index, list) {
results[results.length] = iterator.call(context, value, index, list);
});
return results;
},
/// MurmurHash3 related functions
//
// Given two 64bit ints (as an array of two 32bit ints) returns the two
// added together as a 64bit int (as an array of two 32bit ints).
//
x64Add: function(m, n) {
m = [m[0] >>> 16, m[0] & 0xffff, m[1] >>> 16, m[1] & 0xffff];
n = [n[0] >>> 16, n[0] & 0xffff, n[1] >>> 16, n[1] & 0xffff];
var o = [0, 0, 0, 0];
o[3] += m[3] + n[3];
o[2] += o[3] >>> 16;
o[3] &= 0xffff;
o[2] += m[2] + n[2];
o[1] += o[2] >>> 16;
o[2] &= 0xffff;
o[1] += m[1] + n[1];
o[0] += o[1] >>> 16;
o[1] &= 0xffff;
o[0] += m[0] + n[0];
o[0] &= 0xffff;
return [(o[0] << 16) | o[1], (o[2] << 16) | o[3]];
},
//
// Given two 64bit ints (as an array of two 32bit ints) returns the two
// multiplied together as a 64bit int (as an array of two 32bit ints).
//
x64Multiply: function(m, n) {
m = [m[0] >>> 16, m[0] & 0xffff, m[1] >>> 16, m[1] & 0xffff];
n = [n[0] >>> 16, n[0] & 0xffff, n[1] >>> 16, n[1] & 0xffff];
var o = [0, 0, 0, 0];
o[3] += m[3] * n[3];
o[2] += o[3] >>> 16;
o[3] &= 0xffff;
o[2] += m[2] * n[3];
o[1] += o[2] >>> 16;
o[2] &= 0xffff;
o[2] += m[3] * n[2];
o[1] += o[2] >>> 16;
o[2] &= 0xffff;
o[1] += m[1] * n[3];
o[0] += o[1] >>> 16;
o[1] &= 0xffff;
o[1] += m[2] * n[2];
o[0] += o[1] >>> 16;
o[1] &= 0xffff;
o[1] += m[3] * n[1];
o[0] += o[1] >>> 16;
o[1] &= 0xffff;
o[0] += (m[0] * n[3]) + (m[1] * n[2]) + (m[2] * n[1]) + (m[3] * n[0]);
o[0] &= 0xffff;
return [(o[0] << 16) | o[1], (o[2] << 16) | o[3]];
},
//
// Given a 64bit int (as an array of two 32bit ints) and an int
// representing a number of bit positions, returns the 64bit int (as an
// array of two 32bit ints) rotated left by that number of positions.
//
x64Rotl: function(m, n) {
n %= 64;
if (n === 32) {
return [m[1], m[0]];
}
else if (n < 32) {
return [(m[0] << n) | (m[1] >>> (32 - n)), (m[1] << n) | (m[0] >>> (32 - n))];
}
else {
n -= 32;
return [(m[1] << n) | (m[0] >>> (32 - n)), (m[0] << n) | (m[1] >>> (32 - n))];
}
},
//
// Given a 64bit int (as an array of two 32bit ints) and an int
// representing a number of bit positions, returns the 64bit int (as an
// array of two 32bit ints) shifted left by that number of positions.
//
x64LeftShift: function(m, n) {
n %= 64;
if (n === 0) {
return m;
}
else if (n < 32) {
return [(m[0] << n) | (m[1] >>> (32 - n)), m[1] << n];
}
else {
return [m[1] << (n - 32), 0];
}
},
//
// Given two 64bit ints (as an array of two 32bit ints) returns the two
// xored together as a 64bit int (as an array of two 32bit ints).
//
x64Xor: function(m, n) {
return [m[0] ^ n[0], m[1] ^ n[1]];
},
//
// Given a block, returns murmurHash3's final x64 mix of that block.
// (`[0, h[0] >>> 1]` is a 33 bit unsigned right shift. This is the
// only place where we need to right shift 64bit ints.)
//
x64Fmix: function(h) {
h = this.x64Xor(h, [0, h[0] >>> 1]);
h = this.x64Multiply(h, [0xff51afd7, 0xed558ccd]);
h = this.x64Xor(h, [0, h[0] >>> 1]);
h = this.x64Multiply(h, [0xc4ceb9fe, 0x1a85ec53]);
h = this.x64Xor(h, [0, h[0] >>> 1]);
return h;
},
//
// Given a string and an optional seed as an int, returns a 128 bit
// hash using the x64 flavor of MurmurHash3, as an unsigned hex.
//
x64hash128: function (key, seed) {
key = key || "";
seed = seed || 0;
var remainder = key.length % 16;
var bytes = key.length - remainder;
var h1 = [0, seed];
var h2 = [0, seed];
var k1 = [0, 0];
var k2 = [0, 0];
var c1 = [0x87c37b91, 0x114253d5];
var c2 = [0x4cf5ad43, 0x2745937f];
for (var i = 0; i < bytes; i = i + 16) {
k1 = [((key.charCodeAt(i + 4) & 0xff)) | ((key.charCodeAt(i + 5) & 0xff) << 8) | ((key.charCodeAt(i + 6) & 0xff) << 16) | ((key.charCodeAt(i + 7) & 0xff) << 24), ((key.charCodeAt(i) & 0xff)) | ((key.charCodeAt(i + 1) & 0xff) << 8) | ((key.charCodeAt(i + 2) & 0xff) << 16) | ((key.charCodeAt(i + 3) & 0xff) << 24)];
k2 = [((key.charCodeAt(i + 12) & 0xff)) | ((key.charCodeAt(i + 13) & 0xff) << 8) | ((key.charCodeAt(i + 14) & 0xff) << 16) | ((key.charCodeAt(i + 15) & 0xff) << 24), ((key.charCodeAt(i + 8) & 0xff)) | ((key.charCodeAt(i + 9) & 0xff) << 8) | ((key.charCodeAt(i + 10) & 0xff) << 16) | ((key.charCodeAt(i + 11) & 0xff) << 24)];
k1 = this.x64Multiply(k1, c1);
k1 = this.x64Rotl(k1, 31);
k1 = this.x64Multiply(k1, c2);
h1 = this.x64Xor(h1, k1);
h1 = this.x64Rotl(h1, 27);
h1 = this.x64Add(h1, h2);
h1 = this.x64Add(this.x64Multiply(h1, [0, 5]), [0, 0x52dce729]);
k2 = this.x64Multiply(k2, c2);
k2 = this.x64Rotl(k2, 33);
k2 = this.x64Multiply(k2, c1);
h2 = this.x64Xor(h2, k2);
h2 = this.x64Rotl(h2, 31);
h2 = this.x64Add(h2, h1);
h2 = this.x64Add(this.x64Multiply(h2, [0, 5]), [0, 0x38495ab5]);
}
k1 = [0, 0];
k2 = [0, 0];
switch(remainder) {
case 15:
k2 = this.x64Xor(k2, this.x64LeftShift([0, key.charCodeAt(i + 14)], 48));
/* falls through */
case 14:
k2 = this.x64Xor(k2, this.x64LeftShift([0, key.charCodeAt(i + 13)], 40));
/* falls through */
case 13:
k2 = this.x64Xor(k2, this.x64LeftShift([0, key.charCodeAt(i + 12)], 32));
/* falls through */
case 12:
k2 = this.x64Xor(k2, this.x64LeftShift([0, key.charCodeAt(i + 11)], 24));
/* falls through */
case 11:
k2 = this.x64Xor(k2, this.x64LeftShift([0, key.charCodeAt(i + 10)], 16));
/* falls through */
case 10:
k2 = this.x64Xor(k2, this.x64LeftShift([0, key.charCodeAt(i + 9)], 8));
/* falls through */
case 9:
k2 = this.x64Xor(k2, [0, key.charCodeAt(i + 8)]);
k2 = this.x64Multiply(k2, c2);
k2 = this.x64Rotl(k2, 33);
k2 = this.x64Multiply(k2, c1);
h2 = this.x64Xor(h2, k2);
/* falls through */
case 8:
k1 = this.x64Xor(k1, this.x64LeftShift([0, key.charCodeAt(i + 7)], 56));
/* falls through */
case 7:
k1 = this.x64Xor(k1, this.x64LeftShift([0, key.charCodeAt(i + 6)], 48));
/* falls through */
case 6:
k1 = this.x64Xor(k1, this.x64LeftShift([0, key.charCodeAt(i + 5)], 40));
/* falls through */
case 5:
k1 = this.x64Xor(k1, this.x64LeftShift([0, key.charCodeAt(i + 4)], 32));
/* falls through */
case 4:
k1 = this.x64Xor(k1, this.x64LeftShift([0, key.charCodeAt(i + 3)], 24));
/* falls through */
case 3:
k1 = this.x64Xor(k1, this.x64LeftShift([0, key.charCodeAt(i + 2)], 16));
/* falls through */
case 2:
k1 = this.x64Xor(k1, this.x64LeftShift([0, key.charCodeAt(i + 1)], 8));
/* falls through */
case 1:
k1 = this.x64Xor(k1, [0, key.charCodeAt(i)]);
k1 = this.x64Multiply(k1, c1);
k1 = this.x64Rotl(k1, 31);
k1 = this.x64Multiply(k1, c2);
h1 = this.x64Xor(h1, k1);
/* falls through */
}
h1 = this.x64Xor(h1, [0, key.length]);
h2 = this.x64Xor(h2, [0, key.length]);
h1 = this.x64Add(h1, h2);
h2 = this.x64Add(h2, h1);
h1 = this.x64Fmix(h1);
h2 = this.x64Fmix(h2);
h1 = this.x64Add(h1, h2);
h2 = this.x64Add(h2, h1);
return ("00000000" + (h1[0] >>> 0).toString(16)).slice(-8) + ("00000000" + (h1[1] >>> 0).toString(16)).slice(-8) + ("00000000" + (h2[0] >>> 0).toString(16)).slice(-8) + ("00000000" + (h2[1] >>> 0).toString(16)).slice(-8);
}
};
return Fingerprint2;
});