[Bsky.App] Replace the username and avatar with random pseudonyms.

README.md

为了保持点赞中立写了这个油猴脚本，将蓝天的用户名和头像替换为随机生成的，同时隐藏了用户ID，这样就能排除对用户印象或亲疏关系的干扰，仅根据内容进行点赞、转发和评论 😃

安装

• 先安装篡改猴插件：https://www.tampermonkey.net/index.php?locale=zh
• 再点击bsky-cloak.user.js文件的RAW按钮，或者这个直达链接：https://gist.github.com/genzj/5ce3d035830591f360446bd3bbd7dc3e/raw/90d2156badfe721e0942f3c9ef746917211f07e5/bsky-cloak.user.js

效果预览

功能

• 随机化头像
• 随机化用户名
• 隐藏时间线和悬浮名片中的用户ID
• 设置头像风格 可选风格
• 持续化随机用户名和头像
• bun和TS化 （https://github.com/genzj/bun-ts-userscript-starter）
• 暂停屏蔽

bsky-cloak.user.js

// ==UserScript==
// @name        BlueSky Cloak
// @namespace   Violentmonkey Scripts
// @match       https://bsky.app/*
// @grant       none
// @version     1.0
// @author      genzj
// @description 7/18/2025, 2:49:10 PM
// @run-at      document-start
// ==/UserScript==


(function() {
    'use strict';

    let fakerLib = undefined;
    let nameMap = new Map();

    // GM_addStyle cannot be used because adding it to @grant delays script loading,
    // making the patching of window.fetch ineffective.
    function addStyle(content) {
      const style = document.createElement('style');
      style.type = 'text/css';
      // Set your CSS rules here, as a string
      style.textContent = content;
      document.head.appendChild(style);
      return style;
    }

    async function enableFaker() {
      if (fakerLib) {
        return fakerLib;
      }

      const { faker } = await import('https://esm.sh/@faker-js/faker');
      window.faker = faker;
      fakerLib = faker;
      return fakerLib;
    }

    function generateHash(s) {
      let hash = 0;
      for (const char of s) {
        hash = (hash << 5) - hash + char.charCodeAt(0);
        hash |= 0; // Constrain to 32bit integer
      }
      return hash.toString();
    };

    async function deepMap(obj, key, fn) {
      if (typeof obj !== 'object') {
        return obj;
      }

      if (Array.isArray(obj)) {
        return await Promise.all(obj.map(async ele => await deepMap(ele, key, fn)));
      }

      const mapped = {};
      for (const k in obj) {
        mapped[k] = k === key ? await fn(obj[k]) : await deepMap(obj[k], key, fn);
      }
      return mapped;
    }

    async function patchAvatar(original) {
      console.debug(`patching avatar ${original}`);
      return `https://api.dicebear.com/9.x/big-smile/svg?seed=${generateHash(original)}`;
    }

    async function patchDisplayName(original) {
      if (nameMap.has(original)) {
        return nameMap.get(original);
      }

      const faker = await enableFaker();
      nameMap.set(original, faker.internet.displayName());
      return nameMap.get(original);
    }

    const OUT_OF_SCOPE_API = [
      // login info
      '/com.atproto.server.getSession',

      // feed info and name
      '/app.bsky.feed.getFeedGenerators',

      // current user's profile
      '/app.bsky.actor.getProfiles',
    ];

    const originalFetch = window.fetch;
    window.fetch = async function(...args) {
        // Optionally inspect the arguments (URL, options)
        const response = await originalFetch.apply(this, args);

        // Clone and modify the response here
        const cloned = response.clone();
        const {url} = cloned;
        console.debug(`fetched: ${url}`);

        if (!url.includes('/xrpc/')) {
          console.debug(`${url} isn't a xrpc, skip patching`);
          return response;
        }

        if (OUT_OF_SCOPE_API.some(api => url.includes(api))) {
          console.debug(`${url} isn't a candidate API, skip patching`);
          return response;
        }

        const text = await cloned.text();

        // Example: Modify response text (say, inject extra data into JSON)
        let data;
        try {
            data = JSON.parse(text);
            data = await deepMap(data, 'avatar', patchAvatar);
            data = await deepMap(data, 'displayName', patchDisplayName);
            data.injected = true; // Modify the response
            console.debug(`patched data of ${url}: ${JSON.stringify(data)}`);
        } catch (e) {
            // Not JSON; return as-is
            console.warn(e);
            return response;
        }

        // Create and return a new response
        const modified = new Response(
            JSON.stringify(data),
            {
                status: response.status,
                statusText: response.statusText,
                headers: response.headers
            }
        );
        return modified;
    };

    setTimeout(() => {
      // handler in the timeline
      addStyle('a[aria-label="View profile"]:last-child {color: transparent !important; background: rgba(128, 128, 128, 0.5) !important; margin-left: 0.5em !important; border-radius: 5px !important;}');
      addStyle('a[aria-label="View profile"]:last-child::before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);transform:skewX(-20deg);animation: 5s linear infinite glareAnimation}@keyframes glareAnimation{0%,100%{left:-100%}50%{left:100%}}');
      // handler in the name card overlay
      addStyle('main ~ div a[aria-label="View profile"] > div > div:last-child {display: none !important; }');
    });
})();