// ==UserScript==
// @name        YouTube Anti-RickRoll
// @match       *://*.youtube.com/watch*
// @grant       none
// @version     1.1.0
// @author      yodaluca23
// @license     GNU GPLv3
// @description Give a warning alert if video is suspected RickRoll.
// @namespace https://greasyfork.org/users/1315976
// ==/UserScript==
const larssieboy18 = 'https://raw.githubusercontent.com/larssieboy18/rickroll-list/refs/heads/main/rickrolls.json';
const dnorhojBlockedIds = 'https://raw.githubusercontent.com/dnorhoj/AntiRickRoll/refs/heads/main/src/background/blockedIds.js';
// Function to fetch RickRoll IDs from both sources
async function extractYouTubeIDs() {
try {
const [rickrollResponse, blockedIdsResponse] = await Promise.all([
fetch(larssieboy18),
fetch(dnorhojBlockedIds)
]);
const rickrollData = await rickrollResponse.json();
const blockedIdsData = await blockedIdsResponse.text();
const youtubeRegex = /(?:youtube\.com\/watch\?v=|youtu\.be\/|video_id=)([\w-]+)/g;
const links = rickrollData.rickrolls || [];
const youtubeIDs = [];
for (const link of links) {
let match;
while ((match = youtubeRegex.exec(link)) !== null) {
youtubeIDs.push(match[1]);
}
}
const blockedIdsMatch = blockedIdsData.replace('export default ', '').replace(';', '');
const blockedIds = JSON.parse(blockedIdsMatch);
const allVideoIDs = [...new Set([...youtubeIDs, ...blockedIds])];
return allVideoIDs;
} catch (error) {
console.error('Error fetching or processing data:', error);
return [];
}
}
function extractSong() {
if (unsafeWindow.ytInitialData.engagementPanels) {
for (const panel of unsafeWindow.ytInitialData.engagementPanels) {
const section = panel.engagementPanelSectionListRenderer;
if (section && section.content && section.content.structuredDescriptionContentRenderer) {
const items = section.content.structuredDescriptionContentRenderer.items;
for (const item of items) {
if (item.horizontalCardListRenderer && item.horizontalCardListRenderer.cards) {
for (const card of item.horizontalCardListRenderer.cards) {
if (card.videoAttributeViewModel && card.videoAttributeViewModel.title) {
// Return the found title
return card.videoAttributeViewModel.title;
}
}
}
}
}
}
}
// return a value that will not be matched with regex
return "not";
}
// Function to check if the video is a RickRoll
function isRickRoll() {
try {
const videoDetails = unsafeWindow.ytInitialPlayerResponse.videoDetails;
const videoTitle = videoDetails?.title?.toLowerCase().replace(/\s+/g, '');
const videoKeywords = videoDetails?.keywords?.map(keyword => keyword.toLowerCase().replace(/\s+/g, ''));
const song = extractSong().toLowerCase().replace(/\s+/g, '');
const rickrollPattern = /(rickroll|rickastley|nevergoingtogiveyouup|nevergonnagiveyouup)/;
// Check if videoTitle or videoKeywords exist and match the pattern
if ((videoTitle && videoTitle.match(rickrollPattern)) || (song.match(rickrollPattern)) || (videoKeywords && videoKeywords.some(keyword => keyword.match(rickrollPattern)))) {
return true;
}
} catch (e) {
console.error('Error while checking video details:', e);
}
return false;
}
// Function to display warning
function warning(message) {
document.querySelector('video').pause();
var userResponse = confirm(message);
if (!userResponse) {
if (document.querySelector('button[title="Mute (m)"]')) {
document.querySelector('button[title="Mute (m)"]').click();
}
}
}
// Main logic
extractYouTubeIDs().then((ids) => {
const currentVideoID = window.location.href.match(/(?:youtube\.com\/watch\?v=|youtu\.be\/)([\w-]+)/);
if (currentVideoID && ids.includes(currentVideoID[1])) {
warning("This is a RickRoll! Do you want to continue? (Cancel to mute)");
} else if (isRickRoll()) {
warning("This is likely a RickRoll! Do you want to continue? (Cancel to mute)");
}
});