优化知乎首页推荐流的内容，如移除灌水用户、按屏蔽词屏蔽等
当前为
// ==UserScript==
// @name 知乎推荐流优化
// @namespace ZhihuFeedOptimization
// @license GPLv3
// @match https://www.zhihu.com/
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_registerMenuCommand
// @grant GM_unregisterMenuCommand
// @version 0.2.3
// @run-at document-idle
// @author lisolaris
// @icon https://www.google.com/s2/favicons?sz=64&domain=zhihu.com
// @description 优化知乎首页推荐流的内容，如移除灌水用户、按屏蔽词屏蔽等
// ==/UserScript==
(function () {
'use strict';
const sleep = ms => new Promise(r => setTimeout(r, ms));
const DEFAULTAVATARHASH = "abed1a8c04700ba7d72b45195223e0ff";
const userChecked = new Set();
const cardsToBeDeleted = new Set();
const bannedWords = new Set();
var bannedWordsJson = GM_getValue("bannedWords", "");
if (bannedWordsJson.length)
for (let word of JSON.parse(bannedWordsJson))
bannedWords.add(word);
var newCardsThreshold = parseInt(GM_getValue("threshold", "5"));
function checkIfBannedWordInCard(newCards=null){
for (let card of newCards){
// console.log("checkIfBannedWordInCard(): " + card.textContent)
// // 删除知乎自带的设置屏蔽词按钮（会员可用） 加入一个新的
// let button = card.querySelector("button.Button.OptionsButton[aria-label='更多']");
// button.addEventListener("click", (function(){
// let popWind = document.querySelector("div.Popover-content.Popover-content--bottom.Popover-content--arrowed.Popover-content-enter-done");
// popWind.querySelector("button.TopstoryItem-menuItem").remove();
// var addBlockButtonElem = document.createElement("button");
// addBlockButtonElem.className = "Button Menu-item AnswerItem-selfMenuItem Button--plain";
// addBlockButtonElem.type = "button";
// addBlockButtonElem.addEventListener("click", alert("???"));
// popWind.querySelector("div.Menu").appendChild(addBlockButtonElem);
// }));
// 检查标题是否含有用户屏蔽词
for (let word of bannedWords){
if (card.querySelector("h2").textContent.includes(word)){
let cardItem = card.querySelector("div.ContentItem");
let extraInfo = JSON.parse(cardItem.getAttribute("data-za-extra-module"));
let userId = extraInfo.card.content.author_member_hash_id;
console.log(`%c知乎推荐流优化 待删除列表中加入: ${userId}, 原因: 用户屏蔽词 ${word}`, "color:#00A2E8");
cardsToBeDeleted.add(card);
break;
}
}
}
}
async function checkIfAuthorDefaultAvatarInCard(newCards=null){
var cards;
if (!newCards) cards = document.getElementsByClassName("Card TopstoryItem TopstoryItem-isRecommend");
else cards = newCards;
const fetchPromises = [];
for (let card of cards) {
// 每个内容卡片都具有class: "ContentItem ArticleItem"或"ContentItem AnswerItem"
let cardItem = card.querySelector("div.ContentItem");
// console.log("card: " + card.textContent)
let extraInfo = JSON.parse(cardItem.getAttribute("data-za-extra-module"));
let userId = extraInfo.card.content.author_member_hash_id;
// 此用户已经被检查过/将要检查的卡片已经在待删除列表里 跳过检查
if (userChecked.has(userId) || cardsToBeDeleted.has(card)) continue;
else {
try{
// console.log("知乎推荐流优化 查询用户 " + userId);
fetchPromises.push(
fetch(`https://api.zhihu.com/people/${userId}/profile?profile_new_version=1`)
.then(response => response.json())
.then(data => {
// data.error: 大量请求知乎api后被反爬虫识别 需要到所给出的页面中进行真人验证
if (data.error){
alert("知乎推荐流优化 需要进行真人验证，请在打开的窗口中完成！");
window.open(data.error.redirect);
}
else {
// console.log("用户 " + userId + " 头像URL " + data.avatar_url_template);
if (data.avatar_url_template.toLowerCase().includes(DEFAULTAVATARHASH)){
console.log(`%c知乎推荐流优化 待删除列表中加入: ${userId}, 原因: 默认头像`, "color:#00A2E8");
cardsToBeDeleted.add(card);
}
else{
userChecked.add(userId.toLowerCase());
}
}
})
.catch(error => {
console.error('发生错误：', error);
})
);
}
catch (e){
console.error(e);
}
}
}
await Promise.all(fetchPromises);
console.log("知乎推荐流优化 完成检查");
removeCard();
fetchPromises.length = 0;
}
function removeCard() {
if (cardsToBeDeleted.size > 0) {
console.log("知乎推荐流优化 开始移除卡片");
for (let card of cardsToBeDeleted){
let cardItem = card.querySelector("div.ContentItem");
let text = card.querySelector("span.RichText.ztext.CopyrightRichText-richText").textContent;
const urls = [];
if (card.querySelectorAll("meta[itemprop='url']").length != 0){
for (let url of card.querySelectorAll("meta[itemprop='url']")){
urls.push(url.getAttribute("content"));
}
}
console.log(`%c知乎推荐流优化 已移除卡片: ${cardItem.getAttribute("data-zop")}, 原链接: ${JSON.stringify(urls)}, 预览: ${text}`, "color:#FF00FF");
// 不可使用card.remove() 会导致点击首页顶部推荐按钮刷新页面时出错（removeChild()失败）
card.setAttribute("hidden", "")
}
cardsToBeDeleted.clear();
}
}
function showArrayContent() {
console.log(`toBeDeleted(${cardsToBeDeleted.size}): ` + JSON.stringify(Array.from(cardsToBeDeleted)));
console.log(`userChecked(${userChecked.size}): ` + JSON.stringify(Array.from(userChecked)));
}
async function checkCards(newCards=null){
console.log("知乎推荐流优化 检查新获得的推荐卡片列表……");
checkIfBannedWordInCard(newCards);
checkIfAuthorDefaultAvatarInCard(newCards);
}
// 当检查到推荐流列表发生更新时的回调函数
// 在新增的卡片超过五个后即将新增的卡片传入findDefaultAvatarCard()对作者头像进行检查
function isNodeAddedCallback(mutationRecords, observer){
const newAddedCards = new Set();
for (let mutation of mutationRecords){
if (mutation.addedNodes.length != 0){
if (mutation.addedNodes[0].className === "Card TopstoryItem TopstoryItem-isRecommend")
newAddedCards.add(mutation.addedNodes[0]);
}
}
if (newAddedCards.size >= newCardsThreshold){
checkCards(Array.from(newAddedCards));
newAddedCards.clear();
}
}
function setNewCardsCountThreshold(){
let threshold = prompt("请输入数值:", newCardsThreshold);
if (!isNaN(parseInt(threshold))){
GM_setValue("threshold", parseInt(threshold));
}
}
function showBannedWords(){
bannedWordsJson = GM_getValue("bannedWords");
alert(`知乎推荐流优化 屏蔽词列表: \n${bannedWordsJson}`);
}
function purgeBannedWords(){
bannedWordsJson = "";
bannedWords.clear();
GM_setValue("bannedWords", bannedWordsJson);
alert("知乎推荐流优化 已清空屏蔽词列表");
console.log(Array.from(bannedWords));
}
function addBannedWords(){
let words = prompt("请输入屏蔽词，输入多个时以','分隔: ");
console.log("知乎推荐流优化 用户输入: " + words);
if (words){
words = words.replaceAll(/\s*/g,"").replaceAll("，", ",");
let wordlist = words.split(",");
for (let w of wordlist) bannedWords.add(w);
console.log(Array.from(bannedWords));
bannedWordsJson = JSON.stringify(Array.from(bannedWords));
GM_setValue("bannedWords", bannedWordsJson);
alert("知乎推荐流优化 已添加屏蔽词: \n" + JSON.stringify(wordlist));
}
}
function removeBannedWords(){
let words = prompt("请输入要移除的屏蔽词，输入多个时以','分隔: ");
console.log("知乎推荐流优化 用户输入: " + words);
if (words){
words = words.replaceAll(/\s*/g,"").replaceAll("，", ",");
let wordlist = words.split(",");
for (let w of wordlist) bannedWords.delete(w);
bannedWordsJson = JSON.stringify(Array.from(bannedWords));
GM_setValue("bannedWords", bannedWordsJson);
alert(`知乎推荐流优化 已删除屏蔽词 \n当前屏蔽词库: ${bannedWordsJson}`);
}
}
GM_registerMenuCommand("添加屏蔽词", addBannedWords);
GM_registerMenuCommand("删除屏蔽词", removeBannedWords);
GM_registerMenuCommand("查看屏蔽词列表", showBannedWords);
GM_registerMenuCommand("清空屏蔽词列表", purgeBannedWords);
GM_registerMenuCommand("设置新卡片数量阈值", setNewCardsCountThreshold);
console.log("知乎推荐流优化 已完成加载");
console.log("知乎推荐流优化 用户屏蔽词库: " + JSON.stringify(Array.from(bannedWords)));
console.log("知乎推荐流优化 新卡片数量阈值: " + newCardsThreshold)
const recomBody = document.querySelector("div.Topstory-recommend");
if (recomBody) {
console.log("知乎推荐流优化 在推荐列表变动时检查卡片");
const obconfig = {attributes: false, childList: true, subtree: true};
const observer = new MutationObserver(isNodeAddedCallback);
observer.observe(recomBody, obconfig);
// console.log("知乎推荐流优化 开始初次检查");
// sleep(1500);
// findDefaultAvatarCard();
}
// setInterval(showArrayContent, 5000);
})();