Hide Bot Comments

Removes comments made by bots on websites such as YouTube.

Від 15.03.2022. Дивіться остання версія.

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 or Violentmonkey 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.

(У мене вже є менеджер скриптів, дайте мені встановити його!)

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         Hide Bot Comments
// @namespace    https://theusaf.org
// @version      1.6.1
// @description  Removes comments made by bots on websites such as YouTube.
// @author       theusaf
// @match        https://www.youtube.com/**
// @copyright    2022 theusaf
// @license      MIT
// @grant        none
// ==/UserScript==

const SITES = Object.freeze({
    YOUTUBE: [
      // starts with too much whitespace
      /^\s{2,}/,
      // only links and other punctuation
      /^(\s*@.+)?\s*(https:\/\/[^\s]+)(https:\/\/[^\s]+|\n.\s])+$/,
      // all caps and a link
      /^(\s*@.+)?\s*[A-Z\s\r\n!]*https:\/\/[^\s]+[A-Z\s\r\n!]*$/,
      // A link and a random message afterwards
      /^(\s*@.+)?\s*https:\/\/[^\s]+(\n|.|\s)*(It'll blow your mind\.|[dD]on'?t [mM]iss|Bots for u|Finally|💜|fax|only until|Bots are|:]|I found it :|Do not miss this|:\)|Ye[sp] ¤? (true|exactly)|(...?$))/i,
      // word + link
      /^(\s*@.+)?\s*(This|[Ww]ow!?)\s*https:\/\/[^\s]+/,
      // phrase + line + link
      /([\u0401\u0451\u0410-\u044f,.:]{15,}.*|EXPOSED:|IS FREAK!|IS GARBAGE!{1,}|shocking truth.*|his subscribers.*|will stop watching.*|yes\.?|THE GAME.*|After watching this video you will never love.*)(\n|\s)(\n|.)*https:\/\/[^\s]+/,
      // link + random "word"
      /^(\s*@.+)?\s*https:\/\/[^\s]+\s*[a-z]+\s*$/,
      // link with a star at the end??
      /https:\/\/youtu.be\/\w+\*/,
      // ...
      /PRIVATE S\*X|over 18|Anna is a beautiful girl/i,
      // suspicious websites
      /beautyzone\.\w+|\.cam|lust\.\w+|\.host|asian\w*\.\w+|\w*teen\.\w+/i,
      // too many "-"
      /-{5,}/,
      // single, somewhat strange word
      /^(Hii|Ye|Bruhh|Aawww)$/,
      // common phrase
      /SPECIAL FOR YOU|small channel trying to grow| YouT\*ber|MY CONTENT|My video|pedophile😱|MY WORLD RECORD|(^Yes.{0,5}$)|said this to a fan|[Mm]y mom.*subscribers|literally begging|MY VIDEOS?|fucking cringe|[Dd][Oo][Nn]'?[Tt] read my name/,
      // replies to this bot
      /@Don'?t read my/i,
      // upside down chars
      /[ㄥϛㄣƐᄅƖ⅄Λ∩┴ɹԀ˥ʞſפℲƎƆ∀ʎʍʌʇɹɯʞɾᴉɥƃɟǝɔɐ]/,
      // just a single, weird character
      /^.$/,
      (text) => {
        const charSets = [
          {
            regex: /[\u{fe27}-\u{fe2f}\u{1df5}-\u{1dff}\u{1dc0}-\u{1de6}\u{1ab0}-\u{1abe}\u{0300}-\u{0333}\u{0339}-\u{033f}\u{0346}-\u{034a}\u{034b}-\u{034e}\u{0350}-\u{0357}\u{0358}-\u{035b}]/gu, // weird combining characters
            matchPercent: 0.4
          },
          {
            regex: /[ᴀʙᴄᴅᴇғɢʜɪᴊᴋʟᴍɴᴏᴘᴏ̨ʀsᴛᴜᴠᴡxʏᴢ\s]/g,
            matchPercent: 0.5
          },
          {
            regex: /[\u{1D538}-\u{1D56B}\u{1D400}-\u{1D433}]/gu, // math letter symbols
            matchPercent: 0.3
          },
        ];
        for (const check of charSets) {
          const { regex, matchPercent } = check,
            matches = text.match(regex)?.length ?? 0;
          if (matches / text.length > matchPercent && text.length > 10) {
            return true;
          }
        }
      }
    ]
  }),
  site = getCurrentSite(),
  commentMutationListener = new MutationObserver((mutations) => {
    for (const mutation of mutations) {
      for (const node of mutation.addedNodes) {
        const text = getCommentText(node, site);
        if (text) {
          if (isCommentLikelyBotComment(text, site)) {
            node.style.display = "none";
          }
        }
      }
    }
  });

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

/**
 * Determines whether a comment is likely spam.
 *
 * @param {String} text The comment's content
 * @param {Object} site The website the comment is from
 * @return {Boolean}
 */
function isCommentLikelyBotComment(text, siteChecks) {
  for (const check of siteChecks) {
    if (typeof check === "function") {
      if (check(text)) {
        console.log("Filter Check Failed");
        console.log(text);
        return true;
      }
    } else {
      // assume regex
      if (check.test(text)) {
        console.log("Regex Check Failed");
        console.log(check);
        console.log(text);
        return true;
      }
    }
  }
  return false;
}

function getCommentText(node, site) {
  switch (site) {
    case SITES.YOUTUBE: {
      if (node.nodeName === "YTD-COMMENT-RENDERER") {
        return node.querySelector("#content-text").textContent;
      }
    }
  }
  return null;
}

function getCurrentSite() {
  switch (location.hostname) {
    case "www.youtube.com": {
      return SITES.YOUTUBE;
    }
  }
}