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# CRX-Extractor-Downloader
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# crx-download
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Download CRX files as zip or directly.
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### Store Links
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1. [Chrome Store](https://chrome.google.com/webstore/detail/crx-extractordownloader/ajkhmmldknmfjnmeedkbkkojgobmljda)
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2. [Microsoft Edge Store](https://microsoftedge.microsoft.com/addons/detail/crx-extractordownloader/gfgehnhkaggeillajnpegcanbdjcbeja)
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191
background.js
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191
background.js
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let chromeURLPattern = /^https?:\/\/chrome.google.com\/webstore\/.+?\/([a-z]{32})(?=[\/#?]|$)/;
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let microsoftURLPattern = /^https?:\/\/microsoftedge.microsoft.com\/addons\/detail\/.+?\/([a-z]{32})(?=[\/#?]|$)/;
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let chromeNewURLPattern = /^https?:\/\/chromewebstore.google.com\/detail\/.+?\/([a-z]{32})(?=[\/#?]|$)/;
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function getChromeVersion() {
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var pieces = navigator.userAgent.match(/Chrom(?:e|ium)\/([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)/);
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if (pieces == null || pieces.length != 5) {
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return undefined;
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}
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pieces = pieces.map(piece => parseInt(piece, 10));
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return {
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major: pieces[1],
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minor: pieces[2],
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build: pieces[3],
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patch: pieces[4]
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};
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}
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function getNaclArch() {
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var nacl_arch = 'arm';
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if (navigator.userAgent.indexOf('x86') > 0) {
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nacl_arch = 'x86-32';
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} else if (navigator.userAgent.indexOf('x64') > 0) {
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nacl_arch = 'x86-64';
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}
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return nacl_arch;
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}
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let currentVersion = getChromeVersion();
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let version = currentVersion.major + "." + currentVersion.minor + "." + currentVersion.build + "." + currentVersion.patch;
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const nacl_arch = getNaclArch();
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function getTabTitle(title, currentEXTId, url) {
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if (!chromeNewURLPattern.exec(url)) {
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title = title.match(/^(.*[-])/);
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if (title) {
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title = title[0].split(' - ').join("");
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} else {
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title = currentEXTId;
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}
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}
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// Ѐ-ӿ matches cyrillic characters
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return (title).replace(/[&\/\\#,+()$~%.'":*?<>|{}\sЀ-ӿ]/g, '-').replace(/-*$/g, '').replace(/-+/g, '-');
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}
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function download(downloadAs, tab) {
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var query = {
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active: true,
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currentWindow: true
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};
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result = chromeURLPattern.exec(tab.url);
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if (!result) {
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result = chromeNewURLPattern.exec(tab.url);
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}
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if (result && result[1]) {
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var name = getTabTitle(tab.title, result[1], tab.url);
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if (downloadAs === "zip") {
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url = `https://clients2.google.com/service/update2/crx?response=redirect&prodversion=${version}&x=id%3D${result[1]}%26installsource%3Dondemand%26uc&nacl_arch=${nacl_arch}&acceptformat=crx2,crx3`;
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convertURLToZip(url, function (urlVal) {
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downloadFile(urlVal, name + ".zip");
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});
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} else if (downloadAs === "crx") {
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url = `https://clients2.google.com/service/update2/crx?response=redirect&prodversion=${version}&acceptformat=crx2,crx3&x=id%3D${result[1]}%26uc&nacl_arch=${nacl_arch}`;
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downloadFile(url, name + ".crx", result[1] + ".crx");
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}
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}
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var edgeId = microsoftURLPattern.exec(tab.url);
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if (edgeId && edgeId[1] && downloadAs === "crx") {
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var name = getTabTitle(tab.title, edgeId[1], tab.url);
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url = `https://edge.microsoft.com/extensionwebstorebase/v1/crx?response=redirect&prod=chromiumcrx&prodchannel=&x=id%3D${edgeId[1]}%26installsource%3Dondemand%26uc`;
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downloadFile(url, name + ".crx", edgeId[1] + ".crx");
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}
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// });
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}
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function ArrayBufferToBlob(arraybuffer, callback) {
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var data = arraybuffer;
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var buf = new Uint8Array(data);
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var publicKeyLength, signatureLength, header, zipStartOffset;
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if (buf[4] === 2) {
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header = 16;
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publicKeyLength = 0 + buf[8] + (buf[9] << 8) + (buf[10] << 16) + (buf[11] << 24);
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signatureLength = 0 + buf[12] + (buf[13] << 8) + (buf[14] << 16) + (buf[15] << 24);
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zipStartOffset = header + publicKeyLength + signatureLength;
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} else {
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publicKeyLength = 0 + buf[8] + (buf[9] << 8) + (buf[10] << 16) + (buf[11] << 24 >>> 0);
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zipStartOffset = 12 + publicKeyLength;
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}
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// 16 = Magic number (4), CRX format version (4), lengths (2x4)
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return new Blob([
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new Uint8Array(arraybuffer, zipStartOffset)
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], {
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type: 'application/zip'
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});
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}
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function convertURLToZip(url, callback, xhrProgressListener) {
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var requestUrl = url;
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fetch(requestUrl).then(function (response) {
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return (response.arrayBuffer())
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}).then((res) => {
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var zipFragment = ArrayBufferToBlob(res);
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var reader = new FileReader();
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reader.readAsDataURL(zipFragment);
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reader.onloadend = function () {
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var base64data = reader.result;
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callback(base64data);
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}
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});
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}
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function downloadFile(url, fileName, currentEXTId = "unknown", _fails = 0) {
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chrome.downloads.download({
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url: url,
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filename: fileName,
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saveAs: true
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}, function () {
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if (chrome.runtime.lastError) {
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if (chrome.runtime.lastError.message === "Invalid filename" && _fails < 1) {
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downloadFile(url, currentEXTId, currentEXTId, _fails + 1);
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} else {
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alert('An error occurred while trying to save ' + fileName + ':\n\n' +
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chrome.runtime.lastError.message);
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}
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}
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});
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}
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function onClickEvent(info, tab) {
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if (info.menuItemId === "crx" || info.menuItemId === "crxmicrosoft") {
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download("crx", tab)
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} else if (info.menuItemId === "zip") {
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download("zip", tab)
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}
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console.log(info)
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}
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chrome.contextMenus.onClicked.addListener(onClickEvent);
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chrome.runtime.setUninstallURL("https://thebyteseffect.com/posts/reason-for-uninstall-crx-extractor/", null);
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chrome.runtime.onInstalled.addListener(function (details) {
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if (details.reason == "install") {
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chrome.tabs.create({
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url: "https://thebyteseffect.com/posts/crx-extractor-features/"
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});
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}
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const parent = chrome.contextMenus.create({
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'title': 'Download CRX for this extension',
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'contexts': ['all'],
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'id': "parent",
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'documentUrlPatterns': ['https://chrome.google.com/webstore/detail/*', 'https://chromewebstore.google.com/detail/*']
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});
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chrome.contextMenus.create({
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'title': 'Download CRX for this extension',
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'contexts': ['all'],
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id: "crx",
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parentId: parent,
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'documentUrlPatterns': ['https://chrome.google.com/webstore/detail/*', 'https://chromewebstore.google.com/detail/*']
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});
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chrome.contextMenus.create({
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'title': 'Download CRX for this extension',
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'contexts': ['all'],
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parentId: parent,
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id: "crxmicrosoft",
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'documentUrlPatterns': ['https://microsoftedge.microsoft.com/addons/detail/*']
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});
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chrome.contextMenus.create({
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'title': 'Download ZIP for this extension',
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'contexts': ['all'],
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id: "zip",
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parentId: parent,
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'documentUrlPatterns': ['https://chrome.google.com/webstore/detail/*', 'https://chromewebstore.google.com/detail/*']
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});
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});
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chrome.runtime.onMessage.addListener(function (request, sender, sendResponse) {
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download(request.download, request.tab);
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});
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31
manifest.json
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31
manifest.json
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{
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"update_url": "https://clients2.google.com/service/update2/crx",
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"name": "CRX Extractor/Downloader",
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"version": "1.5.8",
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"manifest_version": 3,
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"description": "Download CRX Files directly as crx or zip file depending upon your choice",
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"permissions": [
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"downloads",
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"contextMenus",
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"activeTab",
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"downloads"
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],
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"background": {
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"service_worker": "background.js"
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},
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"host_permissions": [
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"*://clients2.google.com/service/update2/crx*",
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"*://clients2.googleusercontent.com/crx/download/*"
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],
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"icons": {
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"16": "16.png",
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"48": "48.png",
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"128": "128.png"
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},
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"action": {
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"default_icon": "128.png",
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"default_popup": "popup.html"
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}
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}
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157
popup.html
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157
popup.html
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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<title>Download CRX</title>
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<style>
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.buttons {
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background: none;
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border: 1px solid green;
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width: 200px;
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height: 30px;
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margin-bottom: 20px;
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border-radius: 5px;
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cursor: pointer;
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}
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button:nth-child(1) {
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margin-top: 10px;
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}
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body {
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width: 200px;
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}
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p {
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font-size: 18px;
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}
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.footer {
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margin-top: 10px;
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}
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.footer * {
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text-decoration: none;
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}
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.rating>span {
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display: inline-block;
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position: relative;
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width: 1.1em;
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cursor: pointer;
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}
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.rating>span:hover:before,
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.rating>span:hover~span:before {
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content: "\2605";
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position: absolute;
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}
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.rating {
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unicode-bidi: bidi-override;
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direction: rtl;
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}
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.rate-container {
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text-align: center;
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font-size: 14px;
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margin-right: 10px;
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font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
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"Helvetica Neue", Arial, sans-serif, "Apple Color Emoji",
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"Segoe UI Emoji", "Segoe UI Symbol";
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}
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label{
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display: inline-block;
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width: 200px;
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height: 32px;
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text-align: center;
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padding-top: 6px;
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font-weight: 500;
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font-size: 13.333px;
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cursor: pointer;
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}
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.loader {
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position: relative;
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text-align: center;
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width: 50px;
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height: 20px;
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margin-left: auto;
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margin-right: auto;
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display: none;
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}
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.loader .dot {
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display: inline-block;
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width: 10px;
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height: 10px;
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border-radius: 50%;
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margin-right: 3px;
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background: green;
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animation: loadanim 1.3s linear infinite;
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}
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.loader .dot:nth-child(2) {
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animation-delay: -1.1s;
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}
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.loader .dot:nth-child(3) {
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animation-delay: -0.9s;
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}
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@keyframes loadanim {
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0%, 60%, 100% {
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transform: initial;
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}
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30% {
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transform: translateY(-10px);
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}
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}
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</style>
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</head>
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<body>
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<button class="buttons defaultBtn" id="downloadZIP" title="Download extension in zip">
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Download as ZIP
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</button>
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<button class="buttons defaultBtn" id="downloadCRX" title="Download extension in CRX">
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Download as CRX
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</button>
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<p style="display: none" id="info">
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Please go to
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<a href="https://chrome.google.com/webstore/category/extensions" target="_blank"
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rel="noreferrer noopener">Chrome Extension Store</a> or <a href="https://microsoftedge.microsoft.com/addons/Microsoft-Edge-Extensions-Home" target="_blank"
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rel="noreferrer noopener">Microsoft Addon Store</a>
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and go to extension page to download chrome extensions.
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</p>
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<div class="buttons">
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<label for="convertCRXToZip">Convert from CRX to ZIP file</label>
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<input id="convertCRXToZip" title="Download extension in CRX" accept=".crx" type="file" style="display: none;height:100%"> </input>
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</div>
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<div class="loader" id='loader'>
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<span class="dot"></span>
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<span class="dot"></span>
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<span class="dot"></span>
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</div>
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<button class="buttons" id="downloadCRXToZip" title="Download ZIP File" style="display: none;">
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Download ZIP File
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</button>
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<div class="container footer">
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<div class="rate-container">
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<span>Rate Us</span>
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<div class="rating" id="rating">
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<span>☆</span><span>☆</span><span>☆</span><span>☆</span><span>☆</span>
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</div>
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</div>
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</div>
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</body>
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<script src="popup.js"></script>
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</html>
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96
popup.js
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96
popup.js
Normal file
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let chromeURLPattern = /^https?:\/\/chrome.google.com\/webstore\/.+?\/([a-z]{32})(?=[\/#?]|$)/;
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let chromeNewURLPattern = /^https?:\/\/chromewebstore.google.com\/detail\/.+?\/([a-z]{32})(?=[\/#?]|$)/;
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let microsoftURLPattern = /^https?:\/\/microsoftedge.microsoft.com\/addons\/detail\/.+?\/([a-z]{32})(?=[\/#?]|$)/;
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function ready() {
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document.getElementById('downloadZIP').onclick = async function () {
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let queryOptions = { active: true, currentWindow: true };
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let [tab] = await chrome.tabs.query(queryOptions);
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chrome.runtime.sendMessage({download:"zip", tab: tab});
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};
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document.getElementById('downloadCRX').onclick = async function () {
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let queryOptions = { active: true, currentWindow: true };
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let [tab] = await chrome.tabs.query(queryOptions);
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chrome.runtime.sendMessage({download:"crx",tab:tab});
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};
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document.getElementById("convertCRXToZip").onchange = function (files) {
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setTimeout(() => {
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document.getElementById("loader").style.display = "none";
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document.getElementById("downloadCRXToZip").style.display = "block";
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}, 2000);
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document.getElementById("loader").style.display = "block";
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document.getElementById("downloadCRXToZip").style.display = "none";
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return false;
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}
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document.getElementById("downloadCRXToZip").onclick = function () {
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var file = document.getElementById("convertCRXToZip").files[0];
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var reader = new FileReader();
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reader.onload = function (e) {
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var data = reader.result;
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var buf = new Uint8Array(data);
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var publicKeyLength, signatureLength, header, zipStartOffset;
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if (buf[4] === 2) {
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header = 16;
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publicKeyLength = 0 + buf[8] + (buf[9] << 8) + (buf[10] << 16) + (buf[11] << 24);
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signatureLength = 0 + buf[12] + (buf[13] << 8) + (buf[14] << 16) + (buf[15] << 24);
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zipStartOffset = header + publicKeyLength + signatureLength;
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} else {
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publicKeyLength = 0 + buf[8] + (buf[9] << 8) + (buf[10] << 16) + (buf[11] << 24 >>> 0);
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zipStartOffset = 12 + publicKeyLength;
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}
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// 16 = Magic number (4), CRX format version (4), lengths (2x4)
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var zip = buf.slice(zipStartOffset, buf.length);
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var fileName = file.name.replace(".crx", ".zip")
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var blob = new Blob([zip], { type: "application/octet-stream" });
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var url = window.URL.createObjectURL(blob);
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chrome.downloads.download({
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url: url,
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filename: fileName,
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saveAs: true
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});
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}
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reader.readAsArrayBuffer(file);
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}
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document.getElementById('rating').onclick = function () {
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window.open("https://chrome.google.com/webstore/detail/crx-extractordownloader/ajkhmmldknmfjnmeedkbkkojgobmljda/reviews");
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};
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chrome.tabs.query({ active: true, currentWindow: true }, function (tab) {
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tab = tab[0];
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var id = chromeURLPattern.exec(tab.url);
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|
||||
if (!id) {
|
||||
id = chromeNewURLPattern.exec(tab.url);
|
||||
}
|
||||
var edgeId = microsoftURLPattern.exec(tab.url);
|
||||
|
||||
|
||||
document.getElementById("info").style.display = "block";
|
||||
var elements = document.getElementsByClassName('defaultBtn');
|
||||
var length = elements.length;
|
||||
for (var i = 0; i < length; i++) {
|
||||
elements[i].style.display = 'none';
|
||||
}
|
||||
|
||||
if (edgeId !== null && edgeId[1] !== null) {
|
||||
document.getElementById("info").style.display = "none";
|
||||
document.getElementById('downloadCRX').style.display = 'block';
|
||||
} else if (id !== null && id[1] !== null) {
|
||||
document.getElementById("info").style.display = "none";
|
||||
var elements = document.getElementsByClassName('defaultBtn');
|
||||
var length = elements.length;
|
||||
for (var i = 0; i < length; i++) {
|
||||
elements[i].style.display = 'block';
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
ready();
|
||||
Loading…
x
Reference in New Issue
Block a user