☰

Cat Cleaner+++

gives user possibility to clear website data, directly from page user uses.

  1. // ==UserScript==
  2. // @name Cat Cleaner+++
  3. // @namespace -
  4. // @version 1.1.1
  5. // @description gives user possibility to clear website data, directly from page user uses.
  6. // @author NotYou
  7. // @include *
  8. // @match *://*/*
  9. // @run-at document-body
  10. // @license GPL-3.0-or-later
  11. // @grant GM.registerMenuCommand
  12. // @grant GM.notification
  13. // ==/UserScript==
  14.  
  15. /*
  16.  
  17. ICONS LICENSED UNDER "Linkware" LICENSE
  18.  
  19. BACKLINK: http://www.iconka.com
  20.  
  21. README FILE: https://iconarchive.com/icons/iconka/meow/meow-me.txt
  22.  
  23. */
  24.  
  25. (function() {
  26.     const TITLE = 'Cat Cleaner+++'
  27.  
  28.     if(!GM.registerMenuCommand) {
  29.         warn('No GM.registerMenuCommand, initialization is aborted')
  30.  
  31.         return void 0
  32.     }
  33.  
  34.     const REGISTER_DATA = [
  35.         {
  36.             label: 'Clear Cookies',
  37.             icon: 'https://icons.iconarchive.com/icons/iconka/meow/128/cat-clean-icon.png',
  38.             onclick: clearCookies,
  39.             text: 'Cookies for that website are cleared.',
  40.         },
  41.         {
  42.             label: 'Clear Local Storage',
  43.             icon: 'https://icons.iconarchive.com/icons/iconka/meow/128/cat-walk-icon.png',
  44.             onclick: clearLocalStorage,
  45.             text: 'Local storage for that website is cleared.',
  46.         },
  47.         {
  48.             label: 'Clear Session Storage',
  49.             icon: 'https://icons.iconarchive.com/icons/iconka/meow/128/cat-poo-icon.png',
  50.             onclick: clearSessionStorage,
  51.             text: 'Session storage for that website is cleared.',
  52.         },
  53.         {
  54.             label: 'Clear Cache',
  55.             icon: 'https://icons.iconarchive.com/icons/iconka/meow-2/128/cat-paper-icon.png',
  56.             onclick: clearCache,
  57.             text: 'Cache storage for that website is cleared.',
  58.         },
  59.         {
  60.             label: 'Clear IndexedDB (Chrome-based browsers only)',
  61.             icon: 'https://icons.iconarchive.com/icons/iconka/meow-2/128/cat-paper-icon.png',
  62.             onclick: clearIndexedDB,
  63.             text: 'Indexed databases for that website are cleared.',
  64.         },
  65.         {
  66.             label: 'Clear Everything',
  67.             icon: 'https://icons.iconarchive.com/icons/iconka/meow/128/cat-grumpy-icon.png',
  68.             onclick: clearEverything,
  69.             text: 'Cookies, local storage, session storage, cache storage, indexed db for that website are cleared.',
  70.         }
  71.     ]
  72.  
  73.     for (let i = 0; i < REGISTER_DATA.length; i++) {
  74.         const currentRegisterData = REGISTER_DATA[i]
  75.         const { label, icon, onclick, text } = currentRegisterData
  76.  
  77.         GM.registerMenuCommand(label, () => {
  78.             let validFunctionInitialization = false
  79.  
  80.             try {
  81.                 validFunctionInitialization = onclick()
  82.             } catch(e) {
  83.                 warn(onclick.name + ' function failed initialization, error: ' + e)
  84.             }
  85.  
  86.             if(validFunctionInitialization) {
  87.                 if(GM.notification) {
  88.                     GM.notification({
  89.                         title: TITLE,
  90.                         image: icon,
  91.                         text
  92.                     })
  93.                 } else {
  94.                     warn(text)
  95.                 }
  96.             }
  97.         })
  98.     }
  99.  
  100.     function clearCookies() {
  101.         const cookieLength = document.cookie.split(';').length
  102.  
  103.         for (let i = 0; i < cookieLength; i++) {
  104.             const cookie = document.cookie
  105.  
  106.             document.cookie = cookie + ';max-age=0'
  107.         }
  108.  
  109.         return true
  110.     }
  111.  
  112.     function clearLocalStorage() {
  113.         localStorage.clear()
  114.  
  115.         return true
  116.     }
  117.  
  118.     function clearSessionStorage() {
  119.         sessionStorage.clear()
  120.  
  121.         return true
  122.     }
  123.  
  124.     function clearCache() {
  125.         caches.keys().then(keyList =>
  126.             Promise.all(keyList.map(key =>
  127.                 caches.delete(key)
  128.             )
  129.         ))
  130.  
  131.         return true
  132.     }
  133.  
  134.     function clearIndexedDB() {
  135.         if(!indexedDB.databases) {
  136.             warn('This function is only for Chrome-based browsers!')
  137.  
  138.             return false
  139.         }
  140.  
  141.         indexedDB.databases().then(databases => {
  142.             databases.forEach(database => {
  143.                 indexedDB.deleteDatabase(database)
  144.             })
  145.         })
  146.  
  147.         return true
  148.     }
  149.  
  150.     function clearEverything() {
  151.         clearCookies()
  152.         clearLocalStorage()
  153.         clearSessionStorage()
  154.         clearCache()
  155.         clearIndexedDB()
  156.  
  157.         return true
  158.     }
  159.  
  160.     function warn(message) {
  161.         alert(TITLE + '\n' + message)
  162.     }
  163. })()