GreasyFork Bullshit Filter (refactor)

greasyfork-bullshit-filter-refactor.js

// ==UserScript==
// @name        GreasyFork Bullshit Filter (refactor)
// @namespace   darkred
// @version     2018.9.14.refactor
// @description Hides scripts for popular browser games and social networks as well as scripts that use "foreign" characters in descriptions. Applies to posts in Forum too.
// @author      kuehlschrank, darkred
// @license     MIT
// @icon        https://raw.githubusercontent.com/darkred/Userscripts/master/GreasyFork_Bullshit_Filter/large.png
// @include     /^https:\/\/(greasy|sleazy)fork\.org\/(.*\/)?(scripts|forum|users).*$/
// @exclude     /^https:\/\/(greasy|sleazy)fork\.org\/(.*\/)((scripts\/\d+)|forum\/(discussion\/|profile|messages)).*$/
// @grant       none
//    This is an edited version of this script (http://userscripts-mirror.org/scripts/show/97145) by kuehlschrank.
//    Thanks a lot to kuehlschrank for making another great script.
// ==/UserScript==

(function() {

  const DEBUGGING = 0;

  const filters = {
    'Non-ASCII': /[^\x00-\x7F\s]+/i,
    'Games': /AntiGame|Agar|agar\.io|alis\.io|angel\.io|ExtencionRipXChetoMalo|AposBot|DFxLite|ZTx-Lite|AposFeedingBot|AposLoader|Blah Blah|Orc Clan Script|Astro\s*Empires|^\s*Attack|^\s*Battle|BiteFight|Blood\s*Wars|Bots|Bots4|Brawler|\bBvS\b|Business\s*Tycoon|Castle\s*Age|City\s*Ville|chopcoin\.io|Comunio|Conquer\s*Club|CosmoPulse|cursors\.io|Dark\s*Orbit|Dead\s*Frontier|Diep\.io|\bDOA\b|doblons\.io|DotD|Dossergame|Dragons\s*of\s*Atlantis|driftin\.io|Dugout|\bDS[a-z]+\n|elites\.io|Empire\s*Board|eRep(ublik)?|Epic.*War|ExoPlanet|Falcon Tools|Feuerwache|Farming|FarmVille|Fightinfo|Frontier\s*Ville|Ghost\s*Trapper|Gladiatus|Goalline|Gondal|gota\.io|Grepolis|Hobopolis|\bhwm(\b|_)|Ikariam|\bIT2\b|Jellyneo|Kapi\s*Hospital|Kings\s*Age|Kingdoms?\s*of|knastv(ö|oe)gel|Knight\s*Fight|\b(Power)?KoC(Atta?ck)?\b|\bKOL\b|Kongregate|Last\s*Emperor|Legends?\s*of|Light\s*Rising|lite\.ext\.io|Lockerz|\bLoU\b|Mafia\s*(Wars|Mofo)|Menelgame|Mob\s*Wars|Mouse\s*Hunt|Molehill\s*Empire|NeoQuest|MyFreeFarm|narwhale\.io|Neopets|Nemexia|\bOGame\b|Ogar(io)?|Pardus|Pennergame|Pigskin\s*Empire|PlayerScripts|pokeradar\.io|Popmundo|Po?we?r\s*(Bot|Tools)|PsicoTSI|Ravenwood|Schulterglatze|slither\.io|slitherplus\.io|slitheriogameplay|SpaceWars|splix\.io|\bSW_[a-z]+\n|\bSnP\b|The\s*Crims|The\s*West|torto\.io|Travian|Treasure\s*Isl(and|e)|Tribal\s*Wars|TW.?PRO|Vampire\s*Wars|vertix\.io|War\s*of\s*Ninja|West\s*Wars|wings\.io|\bWoD\b|World\s*of\s*Dungeons|wtf\s*battles|Wurzelimperium/iu,
    'Social Networks': /Face\s*book|Google(\+| Plus)|\bHabbo|Kaskus|\bLepra|Leprosorium|MySpace|meinVZ|odnoklassniki|Одноклассники|Orkut|sch(ue|ü)ler(VZ|\.cc)?|studiVZ|Unfriend|Valenth|VK|vkontakte|ВКонтакте|Qzone|Twitter|TweetDeck/iu,
    'Clutter': /^\s*(.{1,3})\1+\n|^\s*(.+?)\n+\2\n*$|^\s*.{1,5}\n|do\s*n('|o)?t (install|download)|nicht installieren|(just)?(\s*a)?\s*test|^\s*.{0,4}test.{0,4}\n|\ntest(ing)?\s*|^\s*(\{@|Smolka|Hacks)|\[\d{4,5}\]|free\s*download|theme|(night|dark) ?(mode)?/iu
  };

  const commonCss = `
    .filter-status { margin-left: 6px; }
    .filter-switches { display: none; }
    :hover > .filter-switches { display: block; }
    .filter-on, .filter-off { display: block; width: 97px; }
    .filter-switches a { text-decoration: none; color: inherit; cursor: pointer; }
    .filter-switches a { margin-left: 8px; padding: 0 4px; }
    a.filter-on { background-color: #fcc; color: #333; text-decoration: line-through; }
    a.filter-off { background-color: #cfc; color: #333 }
  `;

  const isOnForum = window.location.href.includes('forum');

  const site = {};
  if (isOnForum) {
    site.css = '.ItemDiscussion.filtered { display: none; } .filter-on, .filter-off { color: black; } ' + commonCss;
    site.cssDebug = '.ItemDiscussion.filtered { background-color: khaki; } ' + commonCss; 
    site.filterStatusLocation = '#Head';
    site.itemsToCheck = '.ItemDiscussion';
    site.itemType = 'discussions';
    site.removeFilter = function(el) {
      el.classList.remove('filtered');
    };
    site.applyFilter = function(el, activeFilter) {
      const temp = el.children[1].firstElementChild.innerText;
      if(temp && temp.match(activeFilter)) {
        el.classList.add('filtered');
        return true;
      }
      return false;
    };
  } else {
    site.css = 'li.filtered { display: none; } ' + commonCss;
    site.cssDebug = 'li.filtered { background-color: khaki; } ' + commonCss;
    site.filterStatusLocation = '#script-list-option-groups';
    site.itemsToCheck = 'article > h2';
    site.itemType = 'scripts';
    site.removeFilter = function(el) {
      el.parentNode.parentNode.classList.remove('filtered');
    };
    site.applyFilter = function(el, activeFilter) {
      if (el.innerText.match(activeFilter)) {
        el.parentNode.parentNode.classList.add('filtered');
        return true;
      }
      return false;
    };
  }

  insertStyle();
  insertStatus();
  filterScripts();
  insertSwitches();

  function insertStyle() {
    const style = document.createElement('style');
    style.textContent = DEBUGGING ? site.cssDebug : site.css;
    style.type = 'text/css';
    document.head.appendChild(style);
  }

  function insertStatus() {
    const p = document.querySelector(site.filterStatusLocation);
    if (p) {
      const status = document.createElement('span');
      status.className = 'filter-status';
      p.appendChild(status);
    }
  }

  function filterScripts() {
    const activeFilters = [];
    for (let filterType of Object.keys(filters)) {
      if (configGetValue(filterType, 'on') === 'on') {
        activeFilters.push(filters[filterType]);
      }
    }
    const nodes = document.querySelectorAll(site.itemsToCheck);
    let numFiltered = 0;
    for (let node of nodes) {
      site.removeFilter(node);
      for (let activeFilter of activeFilters) {
        let filtered = site.applyFilter(node, activeFilter);
        if (filtered) {
          numFiltered++;
          break;
        }
      }
    }
    const filterStatus = document.querySelector('.filter-status');
    if (filterStatus) {
      const numUnfiltered = document.querySelectorAll(site.itemsToCheck).length - numFiltered;
      filterStatus.textContent = `${numUnfiltered} ${site.itemType} (${numFiltered} filtered)`;
    }
  }

  function insertSwitches() {
    const span = document.createElement('span');
    span.className = 'filter-switches';
    for (let filterType of Object.keys(filters)) {
      span.appendChild(createSwitch(filterType, configGetValue(filterType, 'on') === 'on'));
    }
    const filterStatus = document.querySelector('.filter-status');
    if (filterStatus) {
      filterStatus.parentNode.appendChild(span);
    }
  }

  function createSwitch(label, isOn) {
    const a = document.createElement('a');
    a.className = isOn ? 'filter-on' : 'filter-off';
    a.textContent = label;
    a.addEventListener('click', function(e) {
      if (this.className === 'filter-on') {
        this.className = 'filter-off';
        configSetValue(this.textContent, 'off');
      } else {
        this.className = 'filter-on';
        configSetValue(this.textContent, 'on');
      }
      filterScripts();
      e.preventDefault();
    }, false);
    return a;
  }

  function configSetValue(name, value) {
    localStorage.setItem(name, value);
  }

  function configGetValue(name, defaultValue) {
    const value = localStorage.getItem(name);
    return value ? value : defaultValue;
  }

})();