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Deterministic assignment related changes (#49)
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* added Mojito userID generator
* added MD5 lib's license
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@allmywant
allmywant authored Feb 4, 2020
1 parent 48dc524 commit 063bb35
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20 changes: 20 additions & 0 deletions LICENSE
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Original file line number Diff line number Diff line change
Expand Up @@ -75,3 +75,23 @@ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

======================================================================

Copyright (c) 2011 Sebastian Tschan, https://blueimp.net

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
254 changes: 247 additions & 7 deletions lib/mojito.js
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Expand Up @@ -93,7 +93,7 @@ Mojito = (function ()
}

if (simpleRateSet && totalSimpleRate != 1) throw new Error('The sum of all the simple rates must be equal to 1');

// Storage adapter definition priority: 1) Test adapter; 2) Global adapter; 3) Default adapter
if (!this.options.storageAdapter)
{
Expand Down Expand Up @@ -188,7 +188,7 @@ Mojito = (function ()
if (inTest === null && isLive)
{
inTest = (this.options.sampleRate <= 0) ? false : (this.getRandom() <= this.options.sampleRate);

if (inTest) newToThisTest = true;
}

Expand Down Expand Up @@ -252,7 +252,7 @@ Mojito = (function ()
this.injectCSS(recipe.css);
}
// Recipe level js
if (recipe.js)
if (recipe.js)
{
recipe.js(this);
}
Expand All @@ -264,7 +264,7 @@ Mojito = (function ()
catch(err)
{
this.trackRecipeFailureEvent(err);
this.log("Test Object [" + this.options.name + "][" + this.options.id + "] recipe onChosen [" + recipe.name + "][" + recipe.id + "] failed, error: "+err.message||err, 'error');
this.log("Test Object [" + this.options.name + "][" + this.options.id + "] recipe onChosen [" + recipe.name + "][" + recipe.id + "] failed, error: " + (err.message||err), 'error');
}

return success;
Expand Down Expand Up @@ -903,6 +903,66 @@ Mojito = (function ()
{
this.domWatcher.observe(elements[i], watchOptions);
}
},
/**
* get user id (uuidv4)
*/
getMojitoUserId: function ()
{
var cookieName = '_mjo',
expires = 730,
userId = Cookies.get(cookieName);

if (userId)
{
Cookies.set(cookieName, userId, {expires: expires});
return userId;
}

/**
* Fast UUID generator, RFC4122 version 4 compliant.
* @author Jeff Ward (jcward.com).
* @license MIT license
* @link http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136
**/
var lut = [];
for (var i = 0; i < 256; i++)
{
lut[i] = (i < 16 ? '0' : '') + (i).toString(16);
}

var randomFn = function ()
{
var rand;
try
{
rand = crypto.getRandomValues(new Uint32Array(1))[0];
}
catch (e)
{
rand = Math.random() * 0xffffffff;
}

return rand;
};

function e7()
{
var d0 = randomFn() | 0;
var d1 = randomFn() | 0;
var d2 = randomFn() | 0;
var d3 = randomFn() | 0;

return lut[d0 & 0xff] + lut[d0 >> 8 & 0xff] + lut[d0 >> 16 & 0xff] + lut[d0 >> 24 & 0xff] + '-' +
lut[d1 & 0xff] + lut[d1 >> 8 & 0xff] + '-' + lut[d1 >> 16 & 0x0f | 0x40] + lut[d1 >> 24 & 0xff] + '-' +
lut[d2 & 0x3f | 0x80] + lut[d2 >> 8 & 0xff] + '-' + lut[d2 >> 16 & 0xff] + lut[d2 >> 24 & 0xff] +
lut[d3 & 0xff] + lut[d3 >> 8 & 0xff] + lut[d3 >> 16 & 0xff] + lut[d3 >> 24 & 0xff];
}

userId = e7();
Cookies.set(cookieName, userId, {expires: expires});

return userId;
}
};

Expand Down Expand Up @@ -1015,9 +1075,8 @@ Mojito = (function ()
};

// Adapted from https://github.com/requirejs/domReady
var domReadyUtil = (function ()
Utils.domReady = (function ()
{

var readyCalls = [], isPageLoaded = false , scrollIntervalId,
testDiv, isTop;

Expand Down Expand Up @@ -1117,7 +1176,188 @@ Mojito = (function ()
return domReady;
})();

Utils.domReady = domReadyUtil;
/*
* JavaScript MD5
* https://github.com/blueimp/JavaScript-MD5
*/
(function($) {
function safeAdd(x, y) {
var lsw = (x & 0xffff) + (y & 0xffff);
var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
return (msw << 16) | (lsw & 0xffff);
}

function bitRotateLeft(num, cnt) {
return (num << cnt) | (num >>> (32 - cnt));
}

function md5cmn(q, a, b, x, s, t) {
return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b);
}

function md5ff(a, b, c, d, x, s, t) {
return md5cmn((b & c) | (~b & d), a, b, x, s, t);
}

function md5gg(a, b, c, d, x, s, t) {
return md5cmn((b & d) | (c & ~d), a, b, x, s, t);
}

function md5hh(a, b, c, d, x, s, t) {
return md5cmn(b ^ c ^ d, a, b, x, s, t);
}

function md5ii(a, b, c, d, x, s, t) {
return md5cmn(c ^ (b | ~d), a, b, x, s, t);
}

function binlMD5(x, len) {
/* append padding */
x[len >> 5] |= 0x80 << len % 32;
x[(((len + 64) >>> 9) << 4) + 14] = len;

var i;
var olda;
var oldb;
var oldc;
var oldd;
var a = 1732584193;
var b = -271733879;
var c = -1732584194;
var d = 271733878;

for (i = 0; i < x.length; i += 16) {
olda = a;
oldb = b;
oldc = c;
oldd = d;

a = md5ff(a, b, c, d, x[i], 7, -680876936);
d = md5ff(d, a, b, c, x[i + 1], 12, -389564586);
c = md5ff(c, d, a, b, x[i + 2], 17, 606105819);
b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330);
a = md5ff(a, b, c, d, x[i + 4], 7, -176418897);
d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426);
c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341);
b = md5ff(b, c, d, a, x[i + 7], 22, -45705983);
a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416);
d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417);
c = md5ff(c, d, a, b, x[i + 10], 17, -42063);
b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162);
a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682);
d = md5ff(d, a, b, c, x[i + 13], 12, -40341101);
c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290);
b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329);

a = md5gg(a, b, c, d, x[i + 1], 5, -165796510);
d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632);
c = md5gg(c, d, a, b, x[i + 11], 14, 643717713);
b = md5gg(b, c, d, a, x[i], 20, -373897302);
a = md5gg(a, b, c, d, x[i + 5], 5, -701558691);
d = md5gg(d, a, b, c, x[i + 10], 9, 38016083);
c = md5gg(c, d, a, b, x[i + 15], 14, -660478335);
b = md5gg(b, c, d, a, x[i + 4], 20, -405537848);
a = md5gg(a, b, c, d, x[i + 9], 5, 568446438);
d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690);
c = md5gg(c, d, a, b, x[i + 3], 14, -187363961);
b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501);
a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467);
d = md5gg(d, a, b, c, x[i + 2], 9, -51403784);
c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473);
b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734);

a = md5hh(a, b, c, d, x[i + 5], 4, -378558);
d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463);
c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562);
b = md5hh(b, c, d, a, x[i + 14], 23, -35309556);
a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060);
d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353);
c = md5hh(c, d, a, b, x[i + 7], 16, -155497632);
b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640);
a = md5hh(a, b, c, d, x[i + 13], 4, 681279174);
d = md5hh(d, a, b, c, x[i], 11, -358537222);
c = md5hh(c, d, a, b, x[i + 3], 16, -722521979);
b = md5hh(b, c, d, a, x[i + 6], 23, 76029189);
a = md5hh(a, b, c, d, x[i + 9], 4, -640364487);
d = md5hh(d, a, b, c, x[i + 12], 11, -421815835);
c = md5hh(c, d, a, b, x[i + 15], 16, 530742520);
b = md5hh(b, c, d, a, x[i + 2], 23, -995338651);

a = md5ii(a, b, c, d, x[i], 6, -198630844);
d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415);
c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905);
b = md5ii(b, c, d, a, x[i + 5], 21, -57434055);
a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571);
d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606);
c = md5ii(c, d, a, b, x[i + 10], 15, -1051523);
b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799);
a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359);
d = md5ii(d, a, b, c, x[i + 15], 10, -30611744);
c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380);
b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649);
a = md5ii(a, b, c, d, x[i + 4], 6, -145523070);
d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379);
c = md5ii(c, d, a, b, x[i + 2], 15, 718787259);
b = md5ii(b, c, d, a, x[i + 9], 21, -343485551);

a = safeAdd(a, olda);
b = safeAdd(b, oldb);
c = safeAdd(c, oldc);
d = safeAdd(d, oldd);
}
return [a, b, c, d];
}

function binl2rstr(input) {
var i;
var output = '';
var length32 = input.length * 32;
for (i = 0; i < length32; i += 8) {
output += String.fromCharCode((input[i >> 5] >>> i % 32) & 0xff);
}
return output;
}

function rstr2binl(input) {
var i;
var output = [];
output[(input.length >> 2) - 1] = undefined;
for (i = 0; i < output.length; i += 1) {
output[i] = 0;
}
var length8 = input.length * 8;
for (i = 0; i < length8; i += 8) {
output[i >> 5] |= (input.charCodeAt(i / 8) & 0xff) << i % 32;
}
return output;
}

function rstrMD5(s) {
return binl2rstr(binlMD5(rstr2binl(s), s.length * 8));
}

function rstr2hex(input) {
var hexTab = '0123456789abcdef';
var output = '';
var x;
var i;
for (i = 0; i < input.length; i += 1) {
x = input.charCodeAt(i);
output += hexTab.charAt((x >>> 4) & 0x0f) + hexTab.charAt(x & 0x0f);
}
return output;
}

function str2rstrUTF8(input) {
return unescape(encodeURIComponent(input));
}

function hexMD5(s) {
return rstr2hex(rstrMD5(str2rstrUTF8(s)));
}

$.md5 = hexMD5;
})(Utils);

// General Mojito exclude feature
// Mojito.options.excluded can be a boolean value or a function
Expand Down
1 change: 1 addition & 0 deletions license.txt
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Expand Up @@ -2,4 +2,5 @@
* Copyright (c) 2019, Mint Metrics Pty Ltd All rights reserved. BSD 3-Clause License. https://github.com/mint-metrics/mojito/blob/master/LICENSE
* Copyright (c) 2010, James Yu. https://github.com/jamesyu/cohorts/blob/master/LICENSE
* Copyright (c) 2005-2017, JS Foundation All rights reserved. https://dojotoolkit.org/license.html
* Copyright (c) 2011 Sebastian Tschan, https://blueimp.net
*/

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