BZZZZ: agar.io skin mod

how to use
open agar.io skin editor
draw something*
exit without saving
refresh
run script using JavaScript console
in new window/tab select something*
select custom 512x512 image
click
when new window/tab alerts "Done!" check agar.io
all something* are same
script
   1 (function () {
   2     'use strict';
   3 
   4     function genString() {
   5         'use strict';
   6         var chars = 'QWERTYUIOPP{}ASDFGHJKL:"|ZXCVBNM?qwertyuiopasdfghjkl;zxcvbnm,./`1234567890-=~!@#$%^&*()_+';
   7         for (var cl = chars.length, s = '', i = 50; i > 0; i--) s += chars.charAt(Math.floor(Math.random() * cl));
   8         return s;
   9     }
  10 
  11     var rKey = genString(), sKey = genString();
  12     var lock0 = true, lock1 = true;
  13 
  14     function rcv(msg) {
  15         'use strict';
  16         if ((msg.source === win) && (msg.data[1] === rKey)) {
  17             if ((msg.data[0] === 'agarioskinmod:ready') && lock0) {
  18                 lock0 = false;
  19                 URL.revokeObjectURL(bstr);
  20                 win.postMessage(['agarioskinmod:string', sKey, localStorage.getItem('storeUsersObject')], '*');
  21             } else if ((msg.data[0] === 'agarioskinmod:rstring') && (!lock0) && lock1) {
  22                 lock1 = false;
  23                 localStorage.setItem('storeUsersObject', msg.data[2]);
  24                 window.removeEventListener('message', rcv);
  25                 location.reload(true);
  26             } else if ((msg.data[0] === 'agarioskinmod:exit') && lock1) {
  27                 lock1 = false;
  28                 window.removeEventListener('message', rcv);
  29                 location.reload(true);
  30             }
  31 
  32         }
  33     }
  34 
  35     window.addEventListener('message', rcv, false);
  36     var bstr = URL.createObjectURL(new Blob([`<?xml version="1.0" encoding="UTF-8"?>
  37 <!DOCTYPE html
  38         PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  39         "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  40 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  41 <head>
  42     <title>agarioskinmod</title>
  43 </head>
  44 <body>
  45 <h3>Replace</h3>
  46 <table border="1">
  47     <thead>
  48     <tr>
  49         <td><b>X</b></td>
  50         <td><b>image</b></td>
  51     </tr>
  52     </thead>
  53     <tbody id="tbdy">
  54     <tr>
  55         <td colspan="2"><i id="smsg">wait...</i></td>
  56     </tr>
  57     </tbody>
  58 </table>
  59 <h3>with <input type="file" id="fle" accept="image/*"/><i>(512x512 image)</i></h3>
  60 <input type="button" value="Do it!" id="doit"/>
  61 <script type="text/javascript"><![CDATA[
  62 (function () {
  63     'use strict';
  64     var lock0 = true;
  65     var sKey = '${rKey}', rKey = '${sKey}';
  66     window.onmessage = function (msg) {
  67         'use strict';
  68         if ((msg.origin === 'https://agar.io') && (msg.source === window.opener) && (msg.data[0] === 'agarioskinmod:string') && (msg.data[1] === rKey) && lock0) {
  69             lock0 = false;
  70             var rgarr = msg.data[2].split(/(data:image\\/[a-zA-Z_\\-+\\.]+;base64,[A-Za-z0-9+\\/]+={0,2})/);
  71             var tbdy = document.getElementById('tbdy');
  72             var temp2 = rgarr.length;
  73             if (temp2 > 2) {
  74                 for (var temp1 = 1, temp3, temp4, temp5; temp1 < temp2; temp1 += 2) {
  75                     temp5 = document.createElement('input');
  76                     temp5.name = 'simg';
  77                     temp5.value = temp1;
  78                     temp5.type = 'radio';
  79                     temp5.checked = false;
  80                     temp4 = document.createElement('td');
  81                     temp4.appendChild(temp5);
  82                     temp3 = document.createElement('tr');
  83                     temp3.appendChild(temp4);
  84                     temp5 = document.createElement('img');
  85                     temp5.alt = 'failed to display image';
  86                     temp5.src = rgarr[temp1];
  87                     temp4 = document.createElement('td');
  88                     temp4.appendChild(temp5);
  89                     temp3.appendChild(temp4);
  90                     tbdy.appendChild(temp3);
  91                 }
  92                 tbdy.querySelector('input[name=simg]').checked = true;
  93                 tbdy.removeChild(tbdy.children[0]);
  94                 var lock1 = true;
  95                 document.getElementById('doit').onclick = function () {
  96                     'use strict';
  97                     if (lock1) {
  98                         var fl = document.getElementById('fle').files[0];
  99                         if (typeof fl === 'undefined') alert('no file selected'); else {
 100                             lock1 = false;
 101                             var fr = new FileReader();
 102                             fr.onload = function () {
 103                                 'use strict';
 104                                 rgarr[tbdy.querySelector('input[name=simg]:checked').value] = fr.result;
 105                                 window.opener.postMessage(['agarioskinmod:rstring', sKey, rgarr.join('')], 'https://agar.io');
 106                                 alert('Done!');
 107                             };
 108                             fr.onerror = function () {
 109                                 'use strict';
 110                                 alert('file read error');
 111                                 lock1 = true;
 112                             };
 113                             fr.readAsDataURL(fl);
 114                         }
 115                     }
 116                 };
 117             } else document.getElementById("smsg").innerHTML = '<font color="red">no images found</font>';
 118         }
 119     };
 120     document.getElementsByTagName('body')[0].onunload = function () {
 121         'use strict';
 122         window.opener.postMessage(['agarioskinmod:exit', sKey], 'https://agar.io');
 123     };
 124     setTimeout(function () {
 125         'use strict';
 126         window.opener.postMessage(['agarioskinmod:ready', sKey], 'https://agar.io');
 127     }, 100);
 128 })();
 129 ]]></script>
 130 </body>
 131 </html>`], {'type': 'application/xhtml+xml'}));
 132     var win = window.open(bstr);
 133 })();
BZZZZ

agar.io skin mod

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