swopglow.net

Detox of swopglow.net when accessed from https://cyclingtiz.live/

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        swopglow.net
// @run-at      document-start
// @namespace   https://github.com/GavinBrelstaff
// @description Detox of swopglow.net when accessed from https://cyclingtiz.live/
// @match       https://swopglow.net/e/*
// @grant       none
// @version     1.0
// @license     GPL version 3 or any later version; http://www.gnu.org/copyleft/gpl.html
// ==/UserScript==

// https://stackoverflow.com/a/76592599

// curl  --referer "https://cyclingtiz.live/"  "https://swopglow.net/e/1n56kvpbgvg06"


window.count=0;

new MutationObserver(async (mutations, observer) => {
    const els = mutations
        .flatMap(e => [...e.addedNodes])
        .filter(e => e.tagName == 'SCRIPT')

    for( el of els )
    {
        window.count++;
        var safe = false;
        var str = '';
        if( el.type && el.type == 'importmap' )
        {
            safe = true;
            str = el.type;
        }
        if( el.src && el.src.includes('clappr.min.js') )
        {
            safe = true;
            str = el.src;
        }
        else if( el.src && el.src.includes('stream.js') )
        {
            safe = true;
            el.setAttribute('defer','');
            str = el.src;
        }
        else if( el.id && el.id == 'config' )
        {
            // hack the config
            const LEAD_IN_STR = "window._econfig='";
            const config_str = el.innerHTML.slice(LEAD_IN_STR.length,-1); // removes LEAD_IN_STR  and the final '
            const config_obj = decode_json_obj(config_str);
            if( config_obj.stream_url_nop2p ) config_obj.p2p = false;
            config_obj.sandbox_block  = false;
            config_obj.devtools_block  = false;
            config_obj.pop1  = false;
            config_obj.alt_domain = true;
            config_obj.hframes = [];
            config_obj.pops = [];
            const myStr = encode_json_obj(config_obj);
            el.innerHTML = LEAD_IN_STR + myStr + "'";

            safe = true;
        }
//safe = false;
        if( str.length <1 ) str  = el.innerHTML.substring(0,40).replace(/\s*/g,'');
        if( ! safe )
        {
           el.remove(); // kill script
           console.log( window.count + 'UNSAFE: ' + str );
        }
        else
           console.log( window.count + '  SAFE: ' + str );
    }

}).observe(document, {
    childList: true,
    subtree: true,
})

function decode_json_obj(_econfig) { // from stream.js
    if (!_econfig) return false;
    const myArr = [2, 0, 3, 1], len = 4;
    _econfig = atob(_econfig);
    const size = _econfig.length, seg_len = Math.ceil(size / len), segArr = [];
    console.log('size: ' + size);
    console.log('seg_len: ' + seg_len);
    let offset = 0;
    for (let i = 0; i < len; i++) {
      const str = _econfig.substr(offset, seg_len);
      segArr.push(str), offset += seg_len;
    }
//console.log( segArr );
    const strArr = [];
    for (let i = 0; i < myArr.length; i++) {
      let str = String(segArr[i]);
      str = str.slice(0, 3) + str.slice(4),  // "12345" produces "1235" (drops the "4")
      strArr[myArr[i]] = atob(str);
    }
//console.log( strArr );
    let txt = strArr.join("");
    txt = atob(txt);
//console.log( txt );
    try {
      return JSON.parse(txt);
    } catch (e) {
      return false;
    }
}

function encode_json_obj(jsonObj) {// reverse code by me!
  if (!jsonObj) return false;
  const myArr = [2, 0, 3, 1], len = 4;  // Same permutation

  let str = JSON.stringify(jsonObj);
  str = str.replace( /\//g, '\\/'); // escape slash chars for compatibility
//console.log( str );
  str = btoa(str);                   // Reverse final atob

  const size = str.length;
  const seg_len = Math.ceil(size / len);
  console.log('size: ' + size);
  console.log('seg_len: ' + seg_len);

  // Split str into original order segments
  const segArr = [];
  let offset = 0;
  for (let i = 0; i < len; i++) {
    segArr[i] = str.substr(offset, seg_len);
    offset += seg_len;
  }
//console.log( segArr );

  // Permute, modify (insert fixed 4th char '0'), base64 each
  const strArr = [];
  for (let i = 0; i < len; i++) {
    let str = btoa(segArr[myArr[i]]);
      strArr[i] = str.slice(0, 3) + 'a' + str.slice(3);  // Insert char at pos 3 (0-indexed)
  }
//console.log( strArr );

  const permutedStr = strArr.join("");
  const _econfig = btoa(permutedStr);    // Final base64
  return _econfig;
}