Twitter One-Click Block Button

Adds a block button to every tweet in order to quickly block people.

Ajankohdalta 14.7.2022. Katso uusin versio.

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 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.

(I already have a user script manager, let me install it!)

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         Twitter One-Click Block Button
// @namespace    https://gist.github.com/toxicwind
// @version      1.1
// @description  Adds a block button to every tweet in order to quickly block people.
// @author       toxicwind
// @license      MIT
// @match        https://twitter.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=twitter.com
// @require      https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js
// @require      https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js
// @grant        none
// @run-at       document-end
// ==/UserScript==

const css = `
    a.block-button {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    a.block-button svg {
        width: 1em;
        height: 1em;
        fill: currentcolor;
    }

    a.block-button {
        transition: color 0.5s;
    }

    a.block-button:hover {
        color: red;
    }

    @keyframes wide {
        0% {
            width: 0%
        }
        100% {
            width: 60%;
        }
    }`;

const style = document.createElement("style");
style.textContent = css;
document.head.appendChild(style);

(async () => {
  let fetchToken = async () => {
    let mainUrl = null;
    for (let script of document.body.querySelectorAll("script[src]"))
      if (/\/main\.[^\/]*\.js$/.test(script.src)) mainUrl = script.src;
    if (!mainUrl) return null;

    let response = await fetch(mainUrl);
    let mainSource = await response.text();
    let result = /\"AAAAAAA[^"]+\"/.exec(mainSource);
    if (!result || result.length != 1) return null;

    return JSON.parse(result[0]);
  };

  let authToken = await fetchToken();

  let getCookie = (cname) => {
    const name = `${cname}=`;
    const decodedCookie = decodeURIComponent(document.cookie);
    const ca = decodedCookie.split(";");
    for (let i = 0; i < ca.length; i++) {
      let c = ca[i];
      while (c.charAt(0) == " ") {
        c = c.substring(1);
      }
      if (c.indexOf(name) == 0) {
        return c.substring(name.length, c.length);
      }
    }
    return "";
  };

  let blockUser = async (userName) => {
    return await fetch("https://api.twitter.com/1.1/blocks/create.json", {
      credentials: "include",
      referrer: "https://api.twitter.com/1.1/blocks/create.json",
      body: `screen_name=${userName}`,
      method: "POST",
      mode: "cors",
      headers: {
        "x-twitter-auth-type": "OAuth2Session",
        "x-twitter-client-language": "en",
        "x-twitter-active-user": "yes",
        "x-csrf-token": getCookie("ct0"),
        authorization: `Bearer ${authToken}`,
        "Content-Type": "application/x-www-form-urlencoded",
      },
    });
  };

  let buttonClick = async (e) => {
    let userName = e.currentTarget.dataset.blockUser;
    let blockResult = await blockUser(userName);
    if (blockResult.status === 200) {
      $("article")
        .find("a[data-block-user=" + userName + "]")
        .parents("article[data-testid=tweet]")
        .slideUp(200);
      //alert("User blocked successfully.");
    } else {
      alert(
        "The block operation failed, see the network tab for detailes of the failure."
      );
    }
  };

  const icon = `<span>&nbsp;·&nbsp;</span><svg xmlns="http://www.w3.org/2000/svg" clip-rule="evenodd" fill-rule="evenodd" stroke-linejoin="round" stroke-miterlimit="2" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="m17.069 6.546 2.684-2.359c.143-.125.32-.187.497-.187.418 0 .75.34.75.75 0 .207-.086.414-.254.562l-16.5 14.501c-.142.126-.319.187-.496.187-.415 0-.75-.334-.75-.75 0-.207.086-.414.253-.562l2.438-2.143c-1.414-1.132-2.627-2.552-3.547-4.028-.096-.159-.144-.338-.144-.517s.049-.358.145-.517c2.111-3.39 5.775-6.483 9.853-6.483 1.815 0 3.536.593 5.071 1.546zm2.318 1.83c.967.943 1.804 2.013 2.475 3.117.092.156.138.332.138.507s-.046.351-.138.507c-2.068 3.403-5.721 6.493-9.864 6.493-1.298 0-2.553-.313-3.73-.849l2.624-2.307c.352.102.724.156 1.108.156 2.208 0 4-1.792 4-4 0-.206-.016-.408-.046-.606zm-4.932.467c-.678-.528-1.53-.843-2.455-.843-2.208 0-4 1.792-4 4 0 .741.202 1.435.553 2.03l1.16-1.019c-.137-.31-.213-.651-.213-1.011 0-1.38 1.12-2.5 2.5-2.5.474 0 .918.132 1.296.362z" fill-rule="nonzero"/>`;

  let observer;

  const interval = setInterval(init, 500);

  const DEBUG = true;

  function debug() {
    if (DEBUG) {
      console.log.apply(null, arguments);
    }
  }

  function init() {
    const el = document.querySelectorAll(
      'div[data-testid="primaryColumn"] section article'
    );

    if (el && el.length > 0) {
      clearInterval(interval);
      debug("articles found");
      //add links to already exisiting articles
      observer = new MutationObserver(newTweets);
      observer.observe(document.body, {
        childList: true,
        attributes: false,
        subtree: true,
        characterData: false,
      });

      el.forEach((article) => {
        createLink(article);
      });
    }
  }

  function newTweets(mutationList, observer) {
    mutationList.forEach((mut) => {
      if (mut.addedNodes.length > 0) {
        mut.addedNodes.forEach((node) => {
          if (node.innerHTML && node.innerHTML.indexOf("<article ") > -1) {
            createLink(node.querySelector("article"));
          }
        });
      }
    });
  }

  function createLink(t) {
    if (!t.querySelector("a[block-button]")) {
      const profileName = t
        .querySelector("div[data-testid=User-Names]")
        .querySelector("a")
        .pathname.substr(1);

      const time = t.querySelector('a[href*="/status/"] time[datetime]');
      if (!time) return;
      const statuslink = time.parentNode;

      const block_link = document.createElement("a");
      block_link.setAttribute("class", "block-button");
      block_link.setAttribute("data-block-user", profileName);
      block_link.innerHTML = icon;
      statuslink.insertAdjacentElement("afterend", block_link);

      block_link.title = "Block User: " + profileName;
      block_link.onclick = buttonClick;
    }
  }
})();