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wombat: ensure Math.random() overrides use the current window

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This commit is contained in:
Ilya Kreymer 2016-05-06 09:48:38 -07:00
parent 1e7d4d27e3
commit e5e7c5a7df
1 changed files with 11 additions and 9 deletions
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20
pywb/static/wombat.js
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@ -667,15 +667,15 @@ var wombat_internal = function($wbwindow) {
// Adapted from:
// http://indiegamr.com/generate-repeatable-random-numbers-in-js/
Math.seed = parseInt(seed);
$wbwindow.Math.seed = parseInt(seed);
function seeded_random() {
Math.seed = (Math.seed * 9301 + 49297) % 233280;
var rnd = Math.seed / 233280;
$wbwindow.Math.seed = ($wbwindow.Math.seed * 9301 + 49297) % 233280;
var rnd = $wbwindow.Math.seed / 233280;
return rnd;
}
Math.random = seeded_random;
$wbwindow.Math.random = seeded_random;
}
function init_crypto_random() {
@ -687,7 +687,7 @@ var wombat_internal = function($wbwindow) {
var new_getrandom = function(array) {
for (i = 0; i < array.length; i++) {
array[i] = parseInt(Math.random() * 4294967296);
array[i] = parseInt($wbwindow.Math.random() * 4294967296);
}
return array;
}
@ -931,7 +931,8 @@ var wombat_internal = function($wbwindow) {
//var timezone = new Date().getTimezoneOffset() * 60 * 1000;
// Already UTC!
var timezone = 0;
var timediff = $wbwindow.Date.now() - (timestamp - timezone);
var start_now = $wbwindow.Date.now()
var timediff = start_now - (timestamp - timezone);
if ($wbwindow.__wb_Date_now) {
return;
@ -1656,13 +1657,14 @@ var wombat_internal = function($wbwindow) {
var from = source.WB_wombat_location.origin;
if (!source.__WB_id) {
source.__WB_id = Math.round(Math.random() * 1000) + source.WB_wombat_location.href;
}
if (!this.__WB_win_id) {
this.__WB_win_id = {};
this.__WB_counter = 0;
}
if (!source.__WB_id) {
source.__WB_id = (this.__WB_counter++) + source.WB_wombat_location.href;
}
this.__WB_win_id[source.__WB_id] = source;
src_id = source.__WB_id;