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December 2, 2021 11:39
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Download Instagram media with button
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// ==UserScript== | |
// @name Instagram Download Button | |
// @name:zh-TW Instagram 下載器 | |
// @name:zh-CN Instagram 下载器 | |
// @name:ja Instagram ダウンローダー | |
// @name:ko Instagram 다운로더 | |
// @name:es Descargador de Instagram | |
// @name:fr Téléchargeur Instagram | |
// @name:hi इंस्टाग्राम डाउनलोडर | |
// @name:ru Загрузчик Instagram | |
// @namespace https://github.com/y252328/Instagram_Download_Button | |
// @version 1.9.5 | |
// @compatible chrome | |
// @compatible firefox | |
// @compatible edge | |
// @description Add the download button and the open button to download or open profile picture and media in the posts, stories, and highlights in Instagram | |
// @description:zh-TW 在Instagram頁面加入下載按鈕與開啟按鈕,透過這些按鈕可以下載或開啟大頭貼與貼文、限時動態、Highlight中的照片或影片 | |
// @description:zh-CN 在Instagram页面加入下载按钮与开启按钮,透过这些按钮可以下载或开启大头贴与贴文、限时动态、Highlight中的照片或影片 | |
// @description:ja メディアをダウンロードまたは開くためのボタンを追加します | |
// @description:ko 미디어를 다운로드하거나 여는 버튼을 추가합니다 | |
// @description:es Agregue botones para descargar o abrir medios | |
// @description:fr Ajoutez des boutons pour télécharger ou ouvrir des médias | |
// @description:hi मीडिया को डाउनलोड या खोलने के लिए बटन जोड़ें। | |
// @description:ru Добавьте кнопки для загрузки или открытия медиа | |
// @author ZhiYu | |
// @match https://www.instagram.com/* | |
// @grant none | |
// @license MIT | |
// ==/UserScript== | |
(function () { | |
'use strict'; | |
// ================= | |
// = Options = | |
// ================= | |
const attachLink = true; // add link into the button elements | |
const postFilenameTemplate = "%id%-%datetime%-%medianame%.%ext%"; | |
const storyFilenameTemplate = postFilenameTemplate; | |
// ================== | |
function yyyymmdd(date) { | |
// ref: https://stackoverflow.com/questions/3066586/get-string-in-yyyymmdd-format-from-js-date-object?page=1&tab=votes#tab-top | |
var mm = date.getMonth() + 1; // getMonth() is zero-based | |
var dd = date.getDate(); | |
return [date.getFullYear(), | |
(mm > 9 ? '' : '0') + mm, | |
(dd > 9 ? '' : '0') + dd | |
].join(''); | |
} | |
var svgDownloadBtn = | |
`<svg version="1.1" id="Capa_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" height="24" width="24" | |
viewBox="0 0 477.867 477.867" style="fill:%color;" xml:space="preserve"> | |
<g> | |
<path d="M443.733,307.2c-9.426,0-17.067,7.641-17.067,17.067v102.4c0,9.426-7.641,17.067-17.067,17.067H68.267 | |
c-9.426,0-17.067-7.641-17.067-17.067v-102.4c0-9.426-7.641-17.067-17.067-17.067s-17.067,7.641-17.067,17.067v102.4 | |
c0,28.277,22.923,51.2,51.2,51.2H409.6c28.277,0,51.2-22.923,51.2-51.2v-102.4C460.8,314.841,453.159,307.2,443.733,307.2z"/> | |
</g> | |
<g> | |
<path d="M335.947,295.134c-6.614-6.387-17.099-6.387-23.712,0L256,351.334V17.067C256,7.641,248.359,0,238.933,0 | |
s-17.067,7.641-17.067,17.067v334.268l-56.201-56.201c-6.78-6.548-17.584-6.36-24.132,0.419c-6.388,6.614-6.388,17.099,0,23.713 | |
l85.333,85.333c6.657,6.673,17.463,6.687,24.136,0.031c0.01-0.01,0.02-0.02,0.031-0.031l85.333-85.333 | |
C342.915,312.486,342.727,301.682,335.947,295.134z"/> | |
</g> | |
</svg>`; | |
var svgNewtabBtn = | |
`<svg id="Capa_1" style="fill:%color;" viewBox="0 0 482.239 482.239" xmlns="http://www.w3.org/2000/svg" height="24" width="24"> | |
<path d="m465.016 0h-344.456c-9.52 0-17.223 7.703-17.223 17.223v86.114h-86.114c-9.52 0-17.223 7.703-17.223 17.223v344.456c0 9.52 7.703 17.223 17.223 17.223h344.456c9.52 0 17.223-7.703 17.223-17.223v-86.114h86.114c9.52 0 17.223-7.703 17.223-17.223v-344.456c0-9.52-7.703-17.223-17.223-17.223zm-120.56 447.793h-310.01v-310.01h310.011v310.01zm103.337-103.337h-68.891v-223.896c0-9.52-7.703-17.223-17.223-17.223h-223.896v-68.891h310.011v310.01z"/> | |
</svg>`; | |
document.addEventListener('keydown', keyDownHandler); | |
function keyDownHandler(event) { | |
if (window.location.href === 'https://www.instagram.com/') return; | |
if (event.altKey && event.key === 'k') { | |
let buttons = document.getElementsByClassName('download-btn'); | |
if (buttons.length > 0) { | |
let mockEvent = { currentTarget: buttons[buttons.length - 1] }; | |
if (attachLink) onMouseInHandler(mockEvent); | |
onClickHandler(mockEvent); | |
} | |
} | |
if (event.altKey && event.key === 'i') { | |
let buttons = document.getElementsByClassName('newtab-btn'); | |
if (buttons.length > 0) { | |
let mockEvent = { currentTarget: buttons[buttons.length - 1] }; | |
if (attachLink) onMouseInHandler(mockEvent); | |
onClickHandler(mockEvent); | |
} | |
} | |
if (event.altKey && event.key === 'l') { | |
// right arrow | |
let buttons = document.getElementsByClassName('coreSpriteRightChevron'); | |
if (buttons.length > 0) { | |
buttons[0].click(); | |
} | |
} | |
if (event.altKey && event.key === 'j') { | |
// left arrow | |
let buttons = document.getElementsByClassName('coreSpriteLeftChevron'); | |
if (buttons.length > 0) { | |
buttons[0].click(); | |
} | |
} | |
} | |
var checkExistTimer = setInterval(function () { | |
let sharePostSelector = "article section span button"; | |
let storySeletor = "header button > div"; | |
let profileSelector = "header section svg circle"; | |
// check profile | |
if (document.getElementsByClassName("custom-btn").length === 0) { | |
if (document.querySelector(profileSelector)) { | |
addCustomBtn(document.querySelector(profileSelector), "black", append2Header); | |
} | |
} | |
// check story | |
if (document.getElementsByClassName("custom-btn").length === 0) { | |
if (document.querySelector(storySeletor)) { | |
addCustomBtn(document.querySelector(storySeletor), "white", append2Post); | |
} | |
} | |
// check post | |
let articleList = document.querySelectorAll("article"); | |
for (let i = 0; i < articleList.length; i++) { | |
if (articleList[i].querySelector(sharePostSelector) && | |
articleList[i].getElementsByClassName("custom-btn").length === 0) { | |
addCustomBtn(articleList[i].querySelector(sharePostSelector), "black", append2Post); | |
} | |
} | |
}, 500); | |
function append2Header(node, btn) { | |
node.parentNode.parentNode.parentNode.appendChild(btn, node.parentNode.parentNode); | |
} | |
function append2Post(node, btn) { | |
node.parentNode.parentNode.appendChild(btn); | |
} | |
function addCustomBtn(node, iconColor, appendNode) { | |
// add download button and set onclick handler | |
// add newtab button | |
let newtabBtn = createCustomBtn(svgNewtabBtn, iconColor, "newtab-btn", "16px"); | |
appendNode(node, newtabBtn); | |
// add download button | |
let downloadBtn = createCustomBtn(svgDownloadBtn, iconColor, "download-btn", "14px"); | |
appendNode(node, downloadBtn); | |
} | |
function createCustomBtn(svg, iconColor, className, marginLeft) { | |
let newBtn = document.createElement("a"); | |
newBtn.innerHTML = svg.replace('%color', iconColor); | |
newBtn.setAttribute("class", "custom-btn " + className); | |
newBtn.setAttribute("target", "_blank"); | |
newBtn.setAttribute("style", "cursor: pointer;margin-left: " + marginLeft + ";margin-top: 8px;"); | |
newBtn.onclick = onClickHandler; | |
if (attachLink) newBtn.onmouseenter = onMouseInHandler; | |
if (className.includes("newtab")) { | |
newBtn.setAttribute("title", "Open in new tab"); | |
} else { | |
newBtn.setAttribute("title", "Download"); | |
} | |
return newBtn; | |
} | |
function onClickHandler(e) { | |
// handle button click | |
let target = e.currentTarget; | |
e.stopPropagation(); | |
e.preventDefault(); | |
if (window.location.pathname.includes('stories')) { | |
storyOnClicked(target); | |
} else if (document.querySelector('header') && | |
document.querySelector('header').contains(target)) { | |
profileOnClicked(target); | |
} else { | |
postOnClicked(target); | |
} | |
} | |
function onMouseInHandler(e) { | |
let target = e.currentTarget; | |
if (!attachLink) return; | |
if (window.location.pathname.includes('stories')) { | |
storyOnMouseIn(target); | |
} else if (document.querySelector('header') && | |
document.querySelector('header').contains(target)) { | |
profileOnMouseIn(target); | |
} else { | |
postOnMouseIn(target); | |
} | |
} | |
function profileOnMouseIn(target) { | |
let url = profileGetUrl(target); | |
target.setAttribute("href", url); | |
} | |
function profileOnClicked(target) { | |
// extract profile picture url and download or open it | |
let url = profileGetUrl(target); | |
let filename = '.png'; | |
if (url.length > 0) { | |
// check url | |
if (target.getAttribute("class").includes("download-btn")) { | |
// generate filename | |
let posterName = document.querySelector('header h2').textContent; | |
filename = posterName + filename; | |
downloadResource(url, filename); | |
} else { | |
// open url in new tab | |
openResource(url); | |
} | |
} | |
} | |
function profileGetUrl(target) { | |
let img = document.querySelector('header img'); | |
let url = img.getAttribute('src'); | |
return url; | |
} | |
async function postOnMouseIn(target) { | |
let articleNode = postGetArticleNode(target); | |
let url = await postGetUrl(target, articleNode); | |
target.setAttribute("href", url); | |
} | |
async function postOnClicked(target) { | |
// extract url from target post and download or open it | |
let articleNode = postGetArticleNode(target); | |
let url = await postGetUrl(target, articleNode); | |
// ============================== | |
// = download or open media url = | |
// ============================== | |
if (url.length > 0) { | |
// check url | |
if (target.getAttribute("class").includes("download-btn")) { | |
let mediaName = url.split('?')[0].split('\\').pop().split('/').pop(); | |
let ext = mediaName.substr(mediaName.lastIndexOf('.') + 1); | |
mediaName = mediaName.substring(0, mediaName.lastIndexOf('.') + 1); | |
let datetime = new Date(articleNode.querySelector('time').getAttribute('datetime')); | |
datetime = yyyymmdd(datetime) + '_' + datetime.toTimeString().split(' ')[0].replace(/:/g, ''); | |
let posterName = articleNode.querySelector('header a').getAttribute('href').replace(/\//g, ''); | |
let filename = filenameFormat(postFilenameTemplate, posterName, datetime, mediaName, ext); | |
downloadResource(url, filename); | |
} else { | |
// open url in new tab | |
openResource(url); | |
} | |
} | |
} | |
function postGetArticleNode(target) { | |
let articleNode = target; | |
while (articleNode && articleNode.tagName !== "ARTICLE") { | |
articleNode = articleNode.parentNode; | |
} | |
return articleNode; | |
} | |
async function postGetUrl(target, articleNode) { | |
// meta[property="og:video"] | |
let list = articleNode.querySelectorAll('li[style][class]'); | |
let url = ""; | |
if (list.length === 0) { | |
// single img or video | |
if (articleNode.querySelector('article div > video')) { | |
let videoElem = articleNode.querySelector('article div > video'); | |
url = videoElem.getAttribute('src'); | |
if (videoElem.hasAttribute('videoURL')) { | |
url = videoElem.getAttribute('videoURL'); | |
} else if (url === null || url.includes('blob')) { | |
url = await fetchVideoURL(articleNode, videoElem); | |
} | |
} else if (articleNode.querySelector('article div[role] div > img')) { | |
url = articleNode.querySelector('article div[role] div > img').getAttribute('src'); | |
} else { | |
console.log("Err: not find media at handle post single"); | |
} | |
} else { | |
// multiple imgs or videos | |
let idx = 0; | |
// check current index | |
if (!articleNode.querySelector('.coreSpriteLeftChevron')) { | |
idx = 0; | |
} else if (!articleNode.querySelector('.coreSpriteRightChevron')) { | |
idx = list.length - 1; | |
} else idx = 1; | |
let node = list[idx]; | |
if (node.querySelector('video')) { | |
let videoElem = node.querySelector('video'); | |
url = videoElem.getAttribute('src'); | |
if (videoElem.hasAttribute('videoURL')) { | |
url = videoElem.getAttribute('videoURL'); | |
} else if (url === null || url.includes('blob')) { | |
url = await fetchVideoURL(articleNode, videoElem); | |
} | |
} else if (node.querySelector('img')) { | |
url = node.querySelector('img').getAttribute('src'); | |
} | |
} | |
return url | |
} | |
async function fetchVideoURL(articleNode, videoElem) { | |
let poster = videoElem.getAttribute('poster'); | |
let timeNodes = articleNode.querySelectorAll('time'); | |
let posterUrl = timeNodes[timeNodes.length - 1].parentNode.href; | |
let posterPattern = /\/([^\/?]*)\?/; | |
let posterMatch = poster.match(posterPattern); | |
let postFileName = posterMatch[1]; | |
let pattern = new RegExp(`${postFileName}.*?video_url":("[^"]*")`, 's'); | |
let resp = await fetch(posterUrl); | |
let content = await resp.text(); | |
let match = content.match(pattern); | |
let videoUrl = JSON.parse(match[1]); | |
videoUrl = videoUrl.replace(/^(?:https?:\/\/)?(?:[^@\/\n]+@)?(?:www\.)?([^:\/?\n]+)/g, 'https://scontent.cdninstagram.com'); | |
videoElem.setAttribute('videoURL', videoUrl) | |
return videoUrl; | |
} | |
function storyOnMouseIn(target) { | |
let sectionNode = storyGetSectionNode(target); | |
let url = storyGetUrl(target, sectionNode); | |
target.setAttribute('href', url); | |
} | |
function storyOnClicked(target) { | |
// extract url from target story and download or open it | |
let sectionNode = storyGetSectionNode(target); | |
let url = storyGetUrl(target, sectionNode); | |
// ============================== | |
// = download or open media url = | |
// ============================== | |
if (target.getAttribute("class").includes("download-btn")) { | |
let mediaName = url.split('?')[0].split('\\').pop().split('/').pop(); | |
let ext = mediaName.substr(mediaName.lastIndexOf('.') + 1); | |
mediaName = mediaName.substring(0, mediaName.lastIndexOf('.') + 1); | |
let datetime = new Date(sectionNode.querySelector('time').getAttribute('datetime')); | |
datetime = yyyymmdd(datetime) + '_' + datetime.toTimeString().split(' ')[0].replace(/:/g, ''); | |
let posterName = sectionNode.querySelector('header a').getAttribute('href').replace(/\//g, ''); | |
let filename = filenameFormat(storyFilenameTemplate, posterName, datetime, mediaName, ext); | |
downloadResource(url, filename); | |
} else { | |
// open url in new tab | |
openResource(url); | |
} | |
} | |
function storyGetSectionNode(target) { | |
let sectionNode = target; | |
while (sectionNode && sectionNode.tagName !== "SECTION") { | |
sectionNode = sectionNode.parentNode; | |
} | |
return sectionNode; | |
} | |
function storyGetUrl(target, sectionNode) { | |
let url = ""; | |
if (sectionNode.querySelector('video > source')) { | |
url = sectionNode.querySelector('video > source').getAttribute('src'); | |
} else if (sectionNode.querySelector('img[decoding="sync"]')) { | |
let img = sectionNode.querySelector('img[decoding="sync"]'); | |
url = img.srcset.split(/ \d+w/g)[0].trim(); // extract first src from srcset attr. of img | |
if (url.length > 0) { | |
return url; | |
} | |
url = sectionNode.querySelector('img[decoding="sync"]').getAttribute('src'); | |
} | |
return url; | |
} | |
function filenameFormat(template, id, datetime, medianame, ext) { | |
let filename = template; | |
filename = filename.replaceAll("%id%", id); | |
filename = filename.replaceAll("%datetime%", datetime); | |
filename = filename.replaceAll("%medianame%", medianame); | |
filename = filename.replaceAll("%ext%", ext); | |
return filename; | |
} | |
function openResource(url) { | |
// open url in new tab | |
var a = document.createElement('a'); | |
a.href = url; | |
a.setAttribute("target", "_blank"); | |
document.body.appendChild(a); | |
a.click(); | |
a.remove(); | |
} | |
function forceDownload(blob, filename) { | |
// ref: https://stackoverflow.com/questions/49474775/chrome-65-blocks-cross-origin-a-download-client-side-workaround-to-force-down | |
var a = document.createElement('a'); | |
a.download = filename; | |
a.href = blob; | |
// For Firefox https://stackoverflow.com/a/32226068 | |
document.body.appendChild(a); | |
a.click(); | |
a.remove(); | |
} | |
// Current blob size limit is around 500MB for browsers | |
function downloadResource(url, filename) { | |
// ref: https://stackoverflow.com/questions/49474775/chrome-65-blocks-cross-origin-a-download-client-side-workaround-to-force-down | |
console.log(url); | |
if (!filename) filename = url.split('\\').pop().split('/').pop(); | |
fetch(url, { | |
headers: new Headers({ | |
'Origin': location.origin | |
}), | |
mode: 'cors' | |
}) | |
.then(response => response.blob()) | |
.then(blob => { | |
let blobUrl = window.URL.createObjectURL(blob); | |
forceDownload(blobUrl, filename); | |
}) | |
.catch(e => console.error(e)); | |
} | |
})(); |
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