未名 BBS 屏蔽用户脚本

BDWM_BLOCK.user.js

// ==UserScript==
// @name        BDWM Block Board Modified
// @version     2.0
// @description BDWM_BLOCK by motaguoke, modified by Allan Chain
// @icon        https://bbs.pku.edu.cn/favicon.ico
// @include     http://bbs.pku.edu.cn/*
// @include     https://bbs.pku.edu.cn/*
// @include     https://*.bdwm.net/*
// @include     http://*.bdwm.net/*
// @homepageURL https://gist.github.com/AllanChain/50e2810d7abf54fe4fb09c175d5f00e7
// @supportURL  https://gist.github.com/AllanChain/50e2810d7abf54fe4fb09c175d5f00e7
// @updateURL   https://gist.github.com/AllanChain/50e2810d7abf54fe4fb09c175d5f00e7/raw/BDWM_BLOCK.user.js
// @downloadURL https://gist.github.com/AllanChain/50e2810d7abf54fe4fb09c175d5f00e7/raw/BDWM_BLOCK.user.js
// @note        2021-06-24  v2.0  加了个屏蔽版面内用户主题帖的功能，修复了刷新页面被屏蔽内容会闪的问题，改了一下变量名
// @note        2021-01-15  v1.1  ES6 改写
// @run-at      document-body
// ==/UserScript==

/** 字符串，首页屏蔽的版面，为了匹配简单，每个版面用方括号括起 */
const BLOCK_BOARDS = '[别问我是谁]'
/** 列表，屏蔽用户的 ID */
const BLOCK_USERIDS = ['Margulies']

console.log(`BDWM_BLOCK by motaguoke Version: 2.0`)

/**
 * 屏蔽首页上不想看的版面
 */
const blockHomepageBoards = () => {
  for (const homepageBoardLink of document.getElementsByClassName('topic-link')) {
    if (BLOCK_BOARDS.includes(homepageBoardLink.innerText)) {
      homepageBoardLink.innerText = '[已屏蔽版面]'
      homepageBoardLink.href = 'javascript:void(0)'

      homepageBoardLink.nextSibling.href = 'javascript:void(0)'
      homepageBoardLink.nextSibling.innerText = '屏蔽版面的话题'
    }
  }
}

/**
 * 屏蔽用户发言
 */
const blockPostCard = () => {
  for (const postCard of document.getElementsByClassName('post-card')) {
    const usernameElement = postCard.getElementsByClassName('username')[0].firstChild
    const username = usernameElement.innerText
    if (BLOCK_USERIDS.includes(username)) {
      //BLOCK CONTENT
      const postContent = postCard.getElementsByClassName('body file-read image-click-view')[0]
      postContent.innerText = '[bdwm屏蔽插件] 该用户的发言已被您屏蔽！'
      postContent.style.color = 'red'
      //BLOCK USERNAME
      usernameElement.innerText = '屏蔽用户'
      const portraitElement = postCard.getElementsByClassName('portrait')[0]
      portraitElement.src = 'https://bbs.pku.edu.cn/v2/images/user/portrait-neu.png'
    }
  }
}

/**
 * 屏蔽版面界面显示的用户发帖
 */
const blockTopicItem = () => {
  for (const topicItem of document.getElementsByClassName('list-item-topic')) {
    for (const authorElement of topicItem.getElementsByClassName('author')) {
      const authorNameElement = authorElement.getElementsByClassName('name')[0]
      const authorName = authorNameElement.innerText
      if (BLOCK_USERIDS.includes(authorName)) {
        authorNameElement.innerText = '屏蔽用户'
        topicItem.querySelector('.title-cont .title').innerText = '屏蔽用户的话题'
        topicItem.querySelector('a').href = 'javascript:void(0)'
        // 如果是楼主而不是最后发言
        const previousElement = authorElement.previousElementSibling
        if (Array.from(previousElement.classList).includes('avatar')) {
          previousElement.querySelector('img').src =
            'https://bbs.pku.edu.cn/v2/images/user/portrait-neu.png'
        }
      }
    }
  }
}

new MutationObserver(() => {
  blockHomepageBoards()
  blockPostCard()
  blockTopicItem()
}).observe(document.documentElement, {
  childList: true,
  subtree: true
})