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Add button for get .crx of extension or theme from Chrome-WebStore
// ==UserScript==
// @name Get of extension from Chrome-WebStore [chrome.google.com]
// @version 0.2
// @description Add button for get .crx of extension or theme from Chrome-WebStore
// @description Bookmartklet version: http://bit.ly/get_crx_chrome_bookmarklet
// @author Vyacheslav Vasiliev
// @include *chrome.google.com/webstore/*
// @namespace 132-148-320
// @copyright © 2017, Vyacheslav Vasiliev (vyach.vasiliev\аt\gmail\dоt\com)
// @run-at document-end
// ==/UserScript==
(function () {
var install_button = document.querySelector('[role="dialog"] div[role="button"][aria-label]');
if (install_button) {
var install_button_classes = install_button.className;
var get_crx_button = document.createElement('a');
get_crx_button.className = install_button_classes;
get_crx_button = install_button.parentNode.insertBefore(get_crx_button, install_button);
get_crx_button.innerText = "Get .crx file";
get_crx_button.id = 'get-crx-file';
var crx_param = getCRXParam();
var crx_name = crx_param[0];
var crx_url_download = crx_param[1];
get_crx_button.setAttribute('download', crx_name+'.crx');
get_crx_button.setAttribute('href', crx_url_download);
// add style for button
var get_crx_button_style = '#get-crx-file {margin-right:2px; } #get-crx-file:hover {opacity:0.8; }';
addStyle(get_crx_button_style);
// if not added style
get_crx_button.style.marginRight = "2px";
}
function getCRXParam() {
// console.info('press getCRX');
var crx_url_download = 'https://clients2.google.com/service/update2/crx?response=redirect&prodversion=49.0&x=id%3D%ID_EXTENSION%%26installsource%3Dondemand%26uc';
var id_extension = window.location.pathname.split('/').slice(-1);
if (id_extension) {
crx_url_download = crx_url_download.replace('%ID_EXTENSION%', id_extension);
// console.info('Build get .crx of url: %s', crx_url_download);
}
var crx_name = document.title.split('-')[0].trim();
if(!crx_name) crx_name = id_extension;
return [crx_name, crx_url_download];
}
function addStyle(css) {
var style = document.createElement('style');
style.type = 'text/css';
if (style.styleSheet) {
style.styleSheet.cssText = css;
} else {
style.appendChild(document.createTextNode(css));
}
}
})();