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bagscript

bag script with anti bot features + more

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// ==UserScript==
// @name        bagscript
// @description bag script with anti bot features + more
// @version     0.6.1.4
// @license     MIT
// @namespace   9e7f6239-592e-409b-913f-06e11cc5e545
// @include     https://8chan.moe/v/res/*
// @include     https://8chan.se/v/res/*
// @include     https://8chan.moe/barchive/res/*
// @include     https://8chan.se/barchive/res/*
// @include     https://8chan.moe/test/res/*
// @include     https://8chan.se/test/res/*
// @grant       unsafeWindow
// @run-at      document-idle
// ==/UserScript==

// Script settings
const RUDE_FORMATS = ["JPEG", "JPG", "PNG"];
const SPOILER_BORDER = "3px solid red";
const THREAD_LOCKED_AT = 1500;
const THREAD_NAME_FILTER = "/bag/";
const URL_PREFIX = window.location.href.split("/").slice(0, 4).join("/");

// Debug settings
const DEBUG_TOOLS_VISIBLE = false;
const DISABLE_YOU_BYPASS = false;
const FORCE_NEXT_THREAD_FAIL = false;

// State
let manualBypass;
let defaultSpoilerSrc;
const settings = {};
let threadsClosed = false;
let toolbarVisible = false;

// Loader
(new MutationObserver((_, observer) => {
  const threadTitle = document.querySelector("div.opHead > span.labelSubject");
  if (threadTitle) {
    observer.disconnect();

    if (!threadTitle.innerText.includes(THREAD_NAME_FILTER)) {
      return;
    }

    loadSettings();
    loadToolbar();

    const initialPosts = document.querySelectorAll(".postCell");
    if (initialPosts.length >= THREAD_LOCKED_AT) {
      addNextThreadFakePost(0, true);
    }

    initialPosts.forEach((post) => {
      handleSpoilers(post);
    });

    processAllPosts();
    postObserver.observe(document, {childList: true, subtree: true});
  }
})).observe(document, {childList: true, subtree: true});

// New post observer
const postObserver = new MutationObserver((mutations) => {
  for (const mutation of mutations) {
    for (const node of mutation.addedNodes) {
      if (node.nodeType === 1) {
        const isPost = node.classList.contains("postCell");
        const isHoverPost = node.classList.contains("quoteTooltip");
        const isInlineQuote = node.classList.contains("inlineQuote");

        if (isPost) {
          if (settings.findNextThread && !threadsClosed) {
            const totalPostCount = document.querySelector("#postCount").innerText;
            if (totalPostCount >= THREAD_LOCKED_AT) {
              threadsClosed = true;
              addNextThreadFakePost();
            }
          }

          handleSpoilers(node);

          const id = postId(node);
          unsafeWindow.posting.idsRelation[id].forEach((innerPost) => {
            processAllPostsById(id);
          });

          node.querySelectorAll(".quoteLink").forEach((quoteLink) => {
            const quotedId = quoteLink.innerText.substring(2);
            const quotedPost = document.getElementById(quotedId);
            if (quotedPost) {
              processSinglePost(quotedPost);
            }
          });
        } else if (isHoverPost || isInlineQuote) {
          handleSpoilers(node);
          processSinglePost(node);
        }
      }
    }
  }
});

const processSinglePost = function(post) {
  const id = postId(post);
  const isNice = isNiceId(id) || isNicePost(post);
  if (isNice) {
    unblurPost(post);
  } else {
    blurPost(post);
  }
}

const processAllPosts = function() {
  for (const id in unsafeWindow.posting.idsRelation) {
    processAllPostsById(id);
  }

  document.querySelectorAll(".inlineQuote").forEach((inlineQuote) => {
    processSinglePost(inlineQuote);
  });

  const hoverPost = document.querySelector(".quoteTooltip");
  if (hoverPost) {
    processSinglePost(hoverPost);
  }
}

const processAllPostsById = function(id) {
  const innerPostsById = unsafeWindow.posting.idsRelation[id];
  let isNice = isNiceId(id);

  for (const innerPost of innerPostsById) {
    const post = innerPost.parentElement;

    if (!isNice) {
      isNice = isNicePost(post);
      if (isNice) break;
    }
  }

  innerPostsById.forEach(innerPost => handlePost(innerPost.parentElement, isNice));
}

const isNiceId = function(id) {
  if (!settings.enabled) return true;

  if (manualBypass[id]) return true;

  const innerPostsById = unsafeWindow.posting.idsRelation[id];

  const isOp = innerPostsById.some(innerPost => innerPost.parentElement.classList.contains("opCell"));
  if (isOp) return true;

  const idAboveThreshold = innerPostsById.length >= settings.postThreshold;
  if (idAboveThreshold) return true;

  return false;
}

const isNicePost = function(post) {
  const postIsByYou = DISABLE_YOU_BYPASS ? false : post.querySelector(".youName");
  if (postIsByYou) return true;

  const aboveBlThreshold = post.querySelectorAll(".postInfo > .panelBacklinks > a")?.length >= settings.backlinkThreshold;
  if (aboveBlThreshold) return true;

  if (settings.experimental) {
    const images = post.querySelectorAll("img");

    const noImages = images.length === 0;
    if (noImages) return true;

    const hasFunImage = Array.from(images).some((image) => {
      const spoilerImage = image.getAttribute("data-spoiler") === "true"
      if (spoilerImage) return true;

      const format = image?.parentElement?.href?.split("/")?.[4]?.split(".")?.[1]?.toUpperCase();
      if (format) {
        const notRudeImage = !RUDE_FORMATS.includes(format);
        if (notRudeImage) return true;
      }

      return false;
    });

    if (hasFunImage) return true;

    const hasFunText = post.querySelector(".doomText, .moeText, .redText, .pinkText, .diceRoll");
    if (hasFunText) return true;
  }

  return false;
}

const isRudeId = function(id) {
  return settings.experimental && unsafeWindow.posting.idsRelation[id].length === 3;
}

const handlePost = function(post, isNice) {
  let bypassButton = post.querySelector(".bypassButton");

  if (isNice) {
    unblurPost(post);

    if (bypassButton) {
      bypassButton.style.display = "none";
    }
  } else {
    blurPost(post);

    if (bypassButton) {
      bypassButton.style.display = "inline";

      if (isRudeId(postId(post))) {
        bypassButton.style.border = "1px solid red";
      }
    } else {
      bypassButton = bypassButtonForId(postId(post));
      post.querySelector(".postInfo.title").appendChild(bypassButton);
    }
  }
}

const handleSpoilers = function(post) {
  const spoilers = post.querySelectorAll("img[src*='spoiler'], img[data-spoiler]");

  if (!defaultSpoilerSrc) {
    defaultSpoilerSrc = spoilers[0]?.src;
  }

  spoilers.forEach(spoiler => {
    spoiler.setAttribute("data-spoiler", true);

    if (settings.revealSpoilers) {
      const fileName = spoiler.parentElement.href.split("/")[4].split(".")[0];
      spoiler.src = `/.media/t_${fileName}`;
      spoiler.style.border = SPOILER_BORDER;
    } else {
      spoiler.src = defaultSpoilerSrc;
      spoiler.style.border = "0";
    }
  });
}

const blurPost = function(post) {
  post.style.display = settings.hideFiltered ? "none" : "block";

  post.querySelectorAll("img").forEach((img) => {
    img.style.filter = `blur(${settings.blurStrength}px)`;
  });
}

const unblurPost = function(post) {
  post.style.display = "block";

  post.querySelectorAll("img").forEach((img) => {
    img.style.filter = "";
  });
}

const loadToolbar = function() {
  // Toolbar container
  const toolbar = document.createElement("div");
  document.querySelector("body").appendChild(toolbar);
  toolbar.style.backgroundColor = "var(--navbar-text-color)";
  toolbar.style.bottom = "0px";
  toolbar.style.color = "var(--navbar-text-color)";
  toolbar.style.display = "flex";
  toolbar.style.gap = "1px";
  toolbar.style.right = "0px";
  toolbar.style.padding = "1px";
  toolbar.style.position = "fixed";

  // Toolbar contents container
  const toolbarContents = document.createElement("div");
  toolbar.appendChild(toolbarContents);
  toolbarContents.style.display = "none";
  toolbarContents.style.flexDirection = "column";
  toolbarContents.style.gap = "1px";
  toolbarContents.style.padding = "1px 1px 0 1px";

  // Enable checkbox
  const enableContainer = container();
  toolbarContents.appendChild(enableContainer);

  const enableLabel = label("Enable Filter");
  enableContainer.appendChild(enableLabel);

  const enableCheckbox = checkbox(settings.enabled);
  enableContainer.appendChild(enableCheckbox);
  enableCheckbox.onchange = () => {
    settings.enabled = enableCheckbox.checked;
    unsafeWindow.localStorage.setItem("bag_enabled", settings.enabled);

    if (settings.enabled) {
      processAllPosts();
      postObserver.observe(document, {childList: true, subtree: true});
    } else {
      postObserver.disconnect();
      processAllPosts();
    }
  };

  // Post threshold input
  const thresholdContainer = container();
  toolbarContents.appendChild(thresholdContainer);

  const thresholdLabel = label("Post Threshold");
  thresholdContainer.appendChild(thresholdLabel);

  const thresholdInput = input(settings.postThreshold);
  thresholdContainer.appendChild(thresholdInput);
  thresholdInput.onchange = () => {
    settings.postThreshold = thresholdInput.value;
    unsafeWindow.localStorage.setItem("bag_postThreshold", settings.postThreshold);

    processAllPosts();
  };

  // Backlink threshold input
  const blThresholdContainer = container();
  toolbarContents.appendChild(blThresholdContainer);

  const blThresholdLabel = label("Backlink Threshold");
  blThresholdContainer.appendChild(blThresholdLabel);

  const blThresholdInput = input(settings.backlinkThreshold);
  blThresholdContainer.appendChild(blThresholdInput);
  blThresholdInput.onchange = () => {
    settings.backlinkThreshold = blThresholdInput.value;
    setSetting("bag_backlinkThreshold", settings.backlinkThreshold);

    processAllPosts();
  };

  // Blur input
  const blurContainer = container();
  toolbarContents.appendChild(blurContainer);

  const blurLabel = label("Blur Strength");
  blurContainer.appendChild(blurLabel);

  const blurInput = input(settings.blurStrength);
  blurContainer.appendChild(blurInput);
  blurInput.onchange = () => {
    settings.blurStrength = blurInput.value;
    unsafeWindow.localStorage.setItem("bag_blurStrength", settings.blurStrength);

    processAllPosts();
  };

  // Experimental checkbox
  const experimentalContaner = container();
  toolbarContents.appendChild(experimentalContaner);

  const experimentalLabel = label("Experimental Heuristics");
  experimentalContaner.appendChild(experimentalLabel);

  const experimentalCheckbox = checkbox(settings.experimental);
  experimentalContaner.appendChild(experimentalCheckbox);
  experimentalCheckbox.onchange = () => {
    settings.experimental = experimentalCheckbox.checked;
    unsafeWindow.localStorage.setItem("bag_experimental", settings.experimental);

    if (!settings.experimental) {
      document.querySelectorAll('.innerPost').forEach(innerPost => {
        innerPost.style.borderRight = "1px solid var(--horizon-sep-color)";
      });

      document.querySelectorAll(".bypassButton").forEach(bypassButton => {
        bypassButton.style.border = "1px solid var(--horizon-sep-color)";
      });
    }

    processAllPosts();
  };

  // Hide filtered checkbox
  const hideContainer = container();
  toolbarContents.appendChild(hideContainer);

  const hideLabel = label("Hide Filtered");
  hideContainer.appendChild(hideLabel);

  const hideCheckbox = checkbox(settings.hideFiltered);
  hideContainer.appendChild(hideCheckbox);
  hideCheckbox.onchange = () => {
    settings.hideFiltered = hideCheckbox.checked;
    unsafeWindow.localStorage.setItem("bag_hideFiltered", settings.hideFiltered);

    processAllPosts();
  };

  // Reveal spoilers checkbox
  const revealContainer = container();
  toolbarContents.appendChild(revealContainer);

  const revealLabel = label("Reveal Spoilers");
  revealContainer.appendChild(revealLabel);

  const revealCheckbox = checkbox(settings.revealSpoilers);
  revealContainer.appendChild(revealCheckbox);
  revealCheckbox.onchange = () => {
    settings.revealSpoilers = revealCheckbox.checked;
    setSetting("bag_revealSpoilers", settings.revealSpoilers);

    document.querySelectorAll(".postCell").forEach(post => handleSpoilers(post));
  };

  // Next thread checkbox
  const nextThreadContainer = container();
  toolbarContents.appendChild(nextThreadContainer);

  const nextThreadLabel = label("Find Next Thread");
  nextThreadContainer.appendChild(nextThreadLabel);

  const nextThreadCheckbox = checkbox(settings.findNextThread);
  nextThreadContainer.appendChild(nextThreadCheckbox);
  nextThreadCheckbox.onchange = () => {
    settings.findNextThread = nextThreadCheckbox.checked;
    setSetting("bag_findNextThread", settings.findNextThread);
  };

  // Debug tools
  if (DEBUG_TOOLS_VISIBLE) {
    const fakePostButton = button();
    toolbarContents.appendChild(fakePostButton);
    fakePostButton.innerText = "Test Fake Post";
    fakePostButton.style.backgroundColor = "var(--background-color)";
    fakePostButton.onclick = () => {
      const url = `${URL_PREFIX}/res/1289960.html`
      addFakePost(`fake post test\r\n<a href="${url}">${url}</a>`);
    }

    const triggerThreadCheckButton = button();
    toolbarContents.appendChild(triggerThreadCheckButton);
    triggerThreadCheckButton.innerText = "Test Thread Finder";
    triggerThreadCheckButton.style.backgroundColor = "var(--background-color)";
    triggerThreadCheckButton.onclick = () => {
      addNextThreadFakePost(0, true);
    }
  }

  // Toolbar toggle button
  const toggleButton = button();
  toolbar.appendChild(toggleButton);
  toggleButton.innerText = "<<"
  toggleButton.style.backgroundColor = "var(--background-color)"
  toggleButton.onclick = () => {
    toolbarVisible = !toolbarVisible;
    toolbarContents.style.display = toolbarVisible ? "flex" : "none";
    toggleButton.innerText = toolbarVisible ? ">>" : "<<";
  }
}

// Post helpers
const postId = function(post) {
  return post.querySelector('.labelId').innerText;
}

const addFakePost = function(contents) {
  const outer = document.createElement("div");
  document.querySelector(".divPosts").appendChild(outer);
  outer.className = "fakePost";
  outer.style.marginBottom = "0.25em";

  const inner = document.createElement("div");
  outer.appendChild(inner);
  inner.className = "innerPost";

  const message = document.createElement("div");
  inner.appendChild(message);
  message.className = "divMessage";
  message.innerHTML = contents;

  return inner;
}

const addNextThreadFakePost = function(initialQueryDelay, includeAutoSage) {
  document.querySelector(".nextThread")?.remove();

  const fakePost = addFakePost(`Searching for next ${THREAD_NAME_FILTER} thread...`);
  fakePost.classList.add("nextThread");

  const fakePostMessage = document.querySelector(".nextThread .divMessage");
  const delay = FORCE_NEXT_THREAD_FAIL ? 500 : 30000;

  setTimeout(async () => {
    const found = FORCE_NEXT_THREAD_FAIL
      ? false
      : await queryNextThread(fakePost, fakePostMessage, includeAutoSage);

    if (!found) {
      fakePostMessage.innerHTML += `\r\nThread not found, retrying in 30s`;

      let retryCount = 8;
      const interval = setInterval(async () => {
        if (retryCount-- < 0) {
          clearInterval(interval);
          fakePostMessage.innerHTML += "\r\nNEXT THREAD NOT FOUND"
          fakePost.style.border = "5px solid red";
          return;
        }

        const retryFound = await queryNextThread(fakePost, fakePostMessage, includeAutoSage);
        if (retryFound) {
          clearInterval(interval);
        } else {
          fakePostMessage.innerHTML += `\r\nThread not found, retrying in 30s`;
        }
      }, delay);
    }
  }, initialQueryDelay ?? 60000);
}

// returns true if no more retries should be attempted
const queryNextThread = async function(fakePost, fakePostMessage, includeAutoSage) {
  // Try to fix issues people were having where fakePostMessage was undefined even with the fake post present.
  // Not sure what the actual cause is, haven't been able to replicate
  if (!fakePost) fakePost = document.querySelector(".nextThread");
  if (!fakePostMessage) fakePostMessage = document.querySelector(".nextThread .divMessage");

  const catalogUrl = barchiveToV(`${URL_PREFIX}/catalog.json`);
  unsafeWindow.console.log("searching for next thread", catalogUrl);

  const catalog = FORCE_NEXT_THREAD_FAIL
    ? await mockEmptyCatalogResponse()
    : await fetch(catalogUrl);

  if (catalog.ok) {
    const threads = await catalog.json();
    for (const thread of threads) {
      const notAutoSage = includeAutoSage || !thread.autoSage;
      if (notAutoSage && thread.subject?.includes(THREAD_NAME_FILTER)) {
        const url = barchiveToV(`${URL_PREFIX}/res/${thread.threadId}.html`);
        fakePostMessage.innerHTML = `${thread.subject} [${thread.postCount ?? 1} posts]:\r\n<a href=${url}>${url}</a>`;
        fakePost.style.border = "5px solid green";
        return true;
      }
    }

    return false;
  } else {
    fakePostMessage.innerHTML = "ERROR WHILE LOOKING FOR NEXT THREAD";
    fakePost.style.border = "5px solid red";
    return true;
  }
}

const barchiveToV = function(url) {
  return url.replace("barchive", "v");
}

// LocalStorage Helpers
const loadSettings = function() {
  manualBypass = getManualBypass();

  settings.backlinkThreshold = getIntSetting("bag_backlinkThreshold", 3);
  settings.blurStrength = getIntSetting("bag_blurStrength", 10);
  settings.findNextThread = getBoolSetting("bag_findNextThread", true);
  settings.enabled = getBoolSetting("bag_enabled", true);
  settings.experimental = getBoolSetting("bag_experimental", true);
  settings.hideFiltered = getBoolSetting("bag_hideFiltered", false);
  settings.postThreshold = getIntSetting("bag_postThreshold", 4);
  settings.revealSpoilers = getBoolSetting("bag_revealSpoilers", false);
}

function setSetting(name, value) {
  unsafeWindow.localStorage.setItem(name, value);
}

function getSetting(name) {
  return unsafeWindow.localStorage.getItem(name);
}

function getBoolSetting(name, defaultValue) {
  const value = getSetting(name);
  if (value === null) return defaultValue;
  return value == "true";
}

function getIntSetting(name, defaultValue) {
  const value = getSetting(name);
  if (value === null) return defaultValue;
  return parseInt(value);
}

function getManualBypass() {
  const bypassVar = `bag_bypass_${unsafeWindow.api.threadId}`;
  const bp = getSetting(bypassVar);
  return (bp === null) ? {} : JSON.parse(bp);
}

function setManualBypass() {
  const bypassVar = `bag_bypass_${unsafeWindow.api.threadId}`;
  const bypassData = JSON.stringify(manualBypass);
  unsafeWindow.localStorage.setItem(bypassVar, bypassData);
}

// HTML Helpers
function container() {
  const container = document.createElement("div");
  container.style.alignItems = "center";
  container.style.backgroundColor = "var(--background-color)";
  container.style.display = "flex";
  container.style.gap = "0.25rem";
  container.style.justifyContent = "space-between";
  container.style.padding = "0.25rem";
  return container;
}

function label(text) {
  const label = document.createElement("div");
  label.innerText = text;
  label.style.color = "white";
  return label;
}

function checkbox(initialValue) {
  const checkbox = document.createElement("input");
  checkbox.type = "checkbox";
  checkbox.style.cursor = "pointer";
  checkbox.checked = initialValue;
  return checkbox;
}

function input(initialValue) {
  const input = document.createElement("input");
  input.size = 4;
  input.value = initialValue;
  return input;
}

function button() {
  const button = document.createElement("div");
  button.style.alignItems = "center";
  button.style.color = "var(--link-color)";
  button.style.cursor = "pointer";
  button.style.display = "flex";
  button.style.padding = "0.25rem 0.75rem";
  button.style.userSelect = "none";
  return button;
}

function bypassButtonForId(id) {
  const border = isRudeId(id)
    ? "1px solid red"
    : "1px solid var(--horizon-sep-color)";

  const bypassButton = button();
  bypassButton.className = "bypassButton";
  bypassButton.innerText = "+";
  bypassButton.style.display = "inline";
  bypassButton.style.marginLeft = "auto";
  bypassButton.style.border = border;
  bypassButton.onclick = () => {
    bypassButton.style.display = "none";
    manualBypass[id] = true;
    setManualBypass();

    unsafeWindow.posting.idsRelation[id].forEach(otherPostInner => {
      unblurPost(otherPostInner.parentElement);
    });
  };

  return bypassButton;
}

// Debug/Test helpers
function mockEmptyCatalogResponse() {
  return Promise.resolve({
    ok: true,
    json: () => Promise.resolve([])
  });
}
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