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Hide Bot Comments

Removes comments made by bots on websites such as YouTube.

当前为 2022-02-20 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Hide Bot Comments
  3. // @namespace    https://theusaf.org
  4. // @version      1.4.1
  5. // @description  Removes comments made by bots on websites such as YouTube.
  6. // @author       theusaf
  7. // @match        https://www.youtube.com/**
  8. // @copyright    2022 theusaf
  9. // @license      MIT
  10. // @grant        none
  11. // ==/UserScript==
  12.  
  13. const SITES = Object.freeze({
  14.     YOUTUBE: [
  15.       /^\s{2,}/, // starts with too much whitespace
  16.       /^(\s*@.+)?\s*(https:\/\/[^\s]+)(https:\/\/[^\s]+|\n.\s])+$/, // only links and other punctuation
  17.       /^(\s*@.+)?\s*[A-Z\s\r\n!]*https:\/\/[^\s]+[A-Z\s\r\n!]*$/, // all caps and a link
  18.       /^(\s*@.+)?\s*https:\/\/[^\s]+(\n|.|\s)*([dD]on'?t [mM]iss|Bots for u|Finally|💜|fax|only until|Bots are|:]|I found it :|Yes true)/i, // A link and a random message afterwards
  19.       /^(\s*@.+)?\s*(This|[Ww]ow!?)\s*https:\/\/[^\s]+/, // word + link
  20.       /^(\s*@.+)?\s*https:\/\/[^\s]+\s*[a-z]+\s*$/, // link + random "word"
  21.       /PRIVATE S\*X|over 18/, // ...
  22.       /beautyzone\.\w+|\.cam|lust\.\w+/i, // suspicious websites
  23.       /-{5,}/, // too many "-"
  24.       /SPECIAL FOR YOU|MY CONTENT|My mom.*subscribers|literally begging|MY VIDEOS|fucking cringe|Don'?t read my name/i, // common phrase
  25.       /[ㄥϛㄣƐᄅƖ⅄Λ∩┴ɹԀ˥ʞſפℲƎƆ∀ʎʍʌʇɹɯʞɾᴉɥƃɟǝɔɐ]/, // upside down chars
  26.       (text) => {
  27.         const charSets = [
  28.           {
  29.             regex: /[ᴀʙᴄᴅᴇғɢʜɪᴊᴋʟᴍɴᴏᴘᴏ̨ʀsᴛᴜᴠᴡxʏᴢ\s]/g,
  30.             matchPercent: 0.5
  31.           },
  32.           {
  33.             regex: /[\u{1D538}-\u{1D56B}]/gu, // math letter symbols
  34.             matchPercent: 0.5
  35.           }
  36.         ];
  37.         for (const check of charSets) {
  38.           const { regex, matchPercent } = check,
  39.             matches = text.match(regex)?.length ?? 0;
  40.           if (matches / text.length > matchPercent && text.length > 10) {
  41.             return true;
  42.           }
  43.         }
  44.       }
  45.     ]
  46.   }),
  47.   site = getCurrentSite(),
  48.   commentMutationListener = new MutationObserver((mutations) => {
  49.     for (const mutation of mutations) {
  50.       for (const node of mutation.addedNodes) {
  51.         const text = getCommentText(node, site);
  52.         if (text) {
  53.           if (isCommentLikelyBotComment(text, site)) {
  54.             node.style.display = "none";
  55.           }
  56.         }
  57.       }
  58.     }
  59.   });
  60.  
  61. commentMutationListener.observe(document.body, {
  62.   subtree: true,
  63.   childList: true
  64. });
  65.  
  66. /**
  67.  * Determines whether a comment is likely spam.
  68.  *
  69.  * @param {String} text The comment's content
  70.  * @param {Object} site The website the comment is from
  71.  * @return {Boolean}
  72.  */
  73. function isCommentLikelyBotComment(text, siteChecks) {
  74.   for (const check of siteChecks) {
  75.     if (typeof check === "function") {
  76.       if (check(text)) {
  77.         return true;
  78.       }
  79.     } else {
  80.       // assume regex
  81.       if (check.test(text)) {
  82.         return true;
  83.       }
  84.     }
  85.   }
  86.   return false;
  87. }
  88.  
  89. function getCommentText(node, site) {
  90.   switch (site) {
  91.     case SITES.YOUTUBE: {
  92.       if (node.nodeName === "YTD-COMMENT-RENDERER") {
  93.         return node.querySelector("#content-text").textContent;
  94.       }
  95.     }
  96.   }
  97.   return null;
  98. }
  99.  
  100. function getCurrentSite() {
  101.   switch (location.hostname) {
  102.     case "www.youtube.com": {
  103.       return SITES.YOUTUBE;
  104.     }
  105.   }
  106. }