Download twitter videos directly from your browser! (CLICK "ALWAYS ALLOW" IF PROMPTED!)
当前为
// ==UserScript==
// @name Twitter DL - Click "Always Allow"!
// @version 1.0.4
// @description Download twitter videos directly from your browser! (CLICK "ALWAYS ALLOW" IF PROMPTED!)
// @author realcoloride
// @license MIT
// @namespace https://twitter.com/*
// @match https://twitter.com/*
// @connect twitterpicker.com
// @connect twimg.com
// @icon https://www.google.com/s2/favicons?sz=64&domain=twitter.com
// @grant GM.xmlHttpRequest
// ==/UserScript==
(function() {
let injectedTweets = [];
const checkFrequency = 150; // in milliseconds
const apiEndpoint = "https://api.twitterpicker.com/tweet/mediav2?id=";
const downloadText = "Download"
const style =
`.dl-video {
padding: 6px;
padding-left: 5px;
padding-right: 5px;
margin-left: 5px;
margin-bottom: 2px;
border-color: black;
border-style: none;
border-radius: 10px;
color: white;
background-color: rgba(39, 39, 39, 0.46);
font-family: Arial, Helvetica, sans-serif;
font-size: xx-small;
cursor: pointer;
}
.dl-hq {
background-color: rgba(28, 199, 241, 0.46);
}
.dl-lq {
background-color: rgba(185, 228, 138, 0.46);
}`;
// Styles
function injectStyles() {
const styleElement = document.createElement("style");
styleElement.textContent = style;
document.head.appendChild(styleElement);
}
injectStyles();
// Snippet extraction
function getRetweetFrame(tweetElement) {
let retweetFrame = null;
const candidates = tweetElement.querySelectorAll(`[id^="id__"]`);
candidates.forEach((candidate) => {
const candidateFrame = candidate.querySelector('div[tabindex="0"][role="link"]');
if (candidateFrame)
retweetFrame = candidateFrame;
});
return retweetFrame;
}
function getTopBar(tweetElement, isRetweet) {
// I know its kind of bad but it works
let element = tweetElement;
if (isRetweet) {
const retweetFrame = getRetweetFrame(tweetElement);
const videoPlayer = tweetElement.querySelector('[data-testid="videoPlayer"]');
const videoPlayerOnRetweet = retweetFrame.querySelector('[data-testid="videoPlayer"]')
const isVideoOnRetweet = (videoPlayer == videoPlayerOnRetweet);
if (videoPlayerOnRetweet && isVideoOnRetweet) element = retweetFrame;
else if (videoPlayerOnRetweet == null) element = tweetElement;
}
const userName = element.querySelector('[data-testid="User-Name"]');
if (isRetweet && element != tweetElement) return userName.parentNode.parentNode;
return userName.parentNode.parentNode.parentNode;
}
// Fetching
async function getMediasFromTweetId(id) {
const url = `${apiEndpoint}${id}`;
const request = await GM.xmlHttpRequest({
method: "GET",
url: url
});
const result = JSON.parse(request.responseText);
let foundMedias = [];
const medias = result.media;
if (medias) {
const videos = medias.videos;
if (videos.length > 0) {
for (let i = 0; i < videos.length; i++) {
const video = videos[i];
const variants = video.variants;
if (!variants || variants.length == 0) continue;
// Check variant medias
let videoContestants = {};
variants.forEach((variant) => {
const isVideo = (variant.content_type.startsWith("video"));
if (isVideo) {
const bitrate = variant.bitrate;
const url = variant.url;
videoContestants[url] = bitrate;
};
})
// Sort by lowest to highest bitrate
const sortedContestants = Object.values(videoContestants).sort((a, b) => a - b);
const findContestant = (value) => {
const entry = Object.entries(videoContestants).find(([key, val]) => val === value);
return entry ? entry[0] : null;
};
let lowQualityVideo = null;
let highQualityVideo = null;
for (let k = 0; k < sortedContestants.length; k++) {
const bitrate = sortedContestants[k];
const url = findContestant(bitrate);
if (url) {
lowQualityVideo = findContestant(sortedContestants[0]);
if (sortedContestants.length > 1) // If has atleast 2 entries
highQualityVideo = findContestant(sortedContestants[sortedContestants.length - 1]);
}
}
const meta = result.meta;
let mediaInformation = {
"hq" : highQualityVideo,
"lq" : lowQualityVideo,
"metadata" : meta
}
foundMedias.push(mediaInformation);
}
}
}
return foundMedias;
}
// Downloading
function getFileNameFromUrl(url) {
const path = url.split('/'); // Split the URL by '/'
const lastSegment = path[path.length - 1]; // Get the last segment of the URL
const fileName = lastSegment.split('?')[0]; // Remove any query parameters
return fileName;
}
async function downloadFile(button, url, mode, filename) {
const baseText = `${downloadText} (${mode.toUpperCase()})`;
button.disabled = true;
button.innerText = "Downloading...";
console.log(`[TwitterDL] Downloading Tweet URL (${mode.toUpperCase()}): ${url}`);
function finish() {
if (button.innerText == baseText) return;
button.disabled = false;
button.innerText = baseText;
}
GM.xmlHttpRequest({
method: 'GET',
url: url,
responseType: 'blob',
onload: function(response) {
const blob = response.response;
const link = document.createElement('a');
link.href = URL.createObjectURL(blob);
link.setAttribute('download', filename);
link.click();
URL.revokeObjectURL(link.href);
button.innerText = 'Downloaded!';
button.disabled = false;
setTimeout(finish, 1000);
},
onerror: function(error) {
console.error('[TwitterDL] Download Error:', error);
button.innerText = 'Download Failed';
setTimeout(finish, 1000);
},
onprogress: function(progressEvent) {
if (progressEvent.lengthComputable) {
const percentComplete = Math.round((progressEvent.loaded / progressEvent.total) * 100);
button.innerText = `Downloading: ${percentComplete}%`;
} else
button.innerText = 'Downloading...';
}
});
}
function createDownloadButton(tweetId, tag) {
const button = document.createElement("button");
button.hidden = true;
getMediasFromTweetId(tweetId).then((mediaInformation) => {
const video = mediaInformation[0];
if (!video) return;
const url = video[tag];
const metadata = video.metadata;
const username = metadata.username;
const extension = getFileNameFromUrl("").split(".").pop();
const filename = `TweetDL_${username}_${tweetId}.${extension}`;
button.classList.add("dl-video", `dl-${tag}`);
button.innerText = `${downloadText} (${tag.toUpperCase()})`;
button.setAttribute("href", url);
button.setAttribute("download", "");
button.addEventListener('click', async() => {
await downloadFile(button, url, tag, filename);
});
button.hidden = false;
});
return button;
}
function createDownloadButtons(tweetElement) {
const tweetInformation = getTweetInformation(tweetElement);
if (!tweetInformation) return;
const tweetId = tweetInformation.id;
getMediasFromTweetId(tweetId).then((mediaInformation) => {
const video = mediaInformation[0];
if (!video) return;
const retweetFrame = getRetweetFrame(tweetElement);
const isRetweet = (retweetFrame != null);
let lowQualityButton;
let highQualityButton;
if (video["lq"]) lowQualityButton = createDownloadButton(tweetId, "lq");
if (video["hq"]) highQualityButton = createDownloadButton(tweetId, "hq");
const videoPlayer = isRetweet ? tweetElement.querySelector('[data-testid="videoPlayer"]') : null;
const videoPlayerOnRetweet = isRetweet ? retweetFrame.querySelector('[data-testid="videoPlayer"]') : null;
const topBar = getTopBar(tweetElement, isRetweet);
const threeDotsElement = topBar.lastChild
const isVideoOnRetweet = (videoPlayer == videoPlayerOnRetweet);
if (!lowQualityButton && !highQualityButton) return;
// Order: HQ then LQ
if (videoPlayer != null && isRetweet && isVideoOnRetweet) {
// Add a little side dot
addSideTextToRetweet(tweetElement, " · ", 6, 5);
if (highQualityButton) topBar.appendChild(highQualityButton);
if (lowQualityButton) topBar.appendChild(lowQualityButton);
} else {
if (lowQualityButton) topBar.insertBefore(lowQualityButton, threeDotsElement);
if (highQualityButton) topBar.insertBefore(highQualityButton, lowQualityButton);
}
})
}
function addSideTextToRetweet(tweetElement, text, forcedMargin, forcedWidth) {
const timeElement = tweetElement.querySelector("time");
const computedStyles = window.getComputedStyle(timeElement);
// Make a new text based on the font and color
const textElement = timeElement.cloneNode(true);
textElement.innerText = text;
textElement.setAttribute("datetime", "");
for (const property of computedStyles) {
textElement.style[property] = computedStyles.getPropertyValue(property);
}
textElement.style.overflow = "visible";
textElement.style["padding-left"] = "4px";
textElement.style["margin-left"] = forcedMargin || 0;
const tweetAvatarElement = tweetElement.querySelectorAll('[data-testid="Tweet-User-Avatar"]')[1];
const targetTweetBar = tweetAvatarElement.parentNode;
targetTweetBar.appendChild(textElement);
const contentWidth = textElement.scrollWidth;
textElement.style.width = (forcedWidth || contentWidth) + 'px';
injectedFallbacks.push(tweetElement);
}
// Page information gathering
function getTweetsInPage() {
return document.getElementsByTagName("article");
}
let injectedFallbacks = [];
function getTweetInformation(tweetElement) {
let information = {};
// ID
// Check the tweet timestamp, it has a link with the id at the end
// In case something goes wrong, a fallback text is shown
let id = null;
const retweetFrame = getRetweetFrame(tweetElement);
const isRetweet = (retweetFrame != null);
const videoPlayer = isRetweet ? retweetFrame.querySelector('[data-testid="videoPlayer"]') : null;
const isPost = (isStatusUrl(window.location.href));
try {
if (isRetweet && isPost) {
const hasRetweetVideoPlayer = (videoPlayer != null);
if (hasRetweetVideoPlayer)
id = (window.location.href).split("/").pop();
} else {
const timeElement = tweetElement.querySelector("time");
const timeHref = timeElement.parentNode;
const tweetUrl = timeHref.href;
id = tweetUrl.split("/").pop();
}
} catch (error) {
try {
if (injectedFallbacks.includes(tweetElement)) return;
const retweetFrame = getRetweetFrame(tweetElement);
const videoPlayer = retweetFrame.querySelector('[data-testid="videoPlayer"]');
if (!videoPlayer != null && retweetFrame != null && isStatusUrl(window.location.href)) return;
console.log("[TwitterDL] Twitter quote retweets from statuses are not supported yet. Throwing fallback");
addSideTextToRetweet(tweetElement, " · Open to Download");
} catch (error) {}
}
if (!id) return;
information.id = id;
// VideoPlayer element
const videoPlayerElement = tweetElement.querySelector('[data-testid="videoPlayer"]');
information.videoPlayer = videoPlayerElement;
// Play button
return information;
}
// Page injection
async function injectAll() {
const tweets = getTweetsInPage();
for (let i = 0; i < tweets.length; i++) {
const tweet = tweets[i];
const alreadyInjected = injectedTweets.includes(tweet);
if (!alreadyInjected) {
const videoPlayer = tweet.querySelector('[data-testid="videoPlayer"]');
const isVideo = (videoPlayer != null);
if (!isVideo) continue;
createDownloadButtons(tweet);
injectedTweets.push(tweet);
}
}
}
function checkForInjection() {
const tweets = getTweetsInPage();
const shouldInject = (injectedTweets.length != tweets.length);
if (shouldInject) injectAll();
}
function isStatusUrl(url) {
const statusUrlRegex = /^https?:\/\/twitter\.com\/\w+\/status\/\d+$/;
return statusUrlRegex.test(url);
}
function isValidUrl(url) {
const tweetUrlRegex = /^https?:\/\/twitter\.com\/\w+(\/\w+)*$/ ;
return tweetUrlRegex.test(url) || isStatusUrl(window.location.href);
}
if (isValidUrl(window.location.href)) {
console.log("[TwitterDL] by (real)coloride - 2023 // Loading... ");
setInterval(async() => {
try {
checkForInjection();
} catch (error) {
console.error("[TwitterDL] Fatal error: ", error);
}
}, checkFrequency);
}
})();