// ==UserScript==// @name           Download on Google Scholar// @namespace      https://openuserjs.org/users/clemente// @match          https://scholar.google.*/*// @grant          GM_xmlhttpRequest// @version        1.3// @author         clemente// @license        MIT// @description    Display a download button next to r###lts// @description:de Eine Download-Schaltfläche neben den Ergebnissen anzeigen// @description:es Mostra un botón de descarga junto a los r###ltados// @description:fr Ajoute un bouton de téléchargement à côté des résultats// @description:it Visualizzare un pulsante per il download accanto ai risultati// @icon           https://scholar.google.com/favicon.ico// @connect        sci-hub.do// @inject-into    content// @noframes// @homepageURL    https://openuserjs.org/scripts/clemente/Download_on_Google_Scholar// @supportURL     https://openuserjs.org/scripts/clemente/Download_on_Google_Scholar/issues// ==/UserScript==/* jshint esversion: 6 */const SCI_HUB_DOMAIN = "sci-hub.do";const SCI_HUB_URL = `https://${SCI_HUB_DOMAIN}`;function gm_fetch(url) {return new Promise((resolve, reject) => {GM_xmlhttpRequest({method: "GET",url: url,onload: function({ status, responseText }) {if (status < 200 && status >= 300) return reject();resolve(responseText);},onerror: function() { reject(); },});});}async function getDownloadLink(link) {try {const scihubPageHtml = await gm_fetch(`${SCI_HUB_URL}/${link}`);const parser = new DOMParser();const scihubPageDocument = parser.parseFromString(scihubPageHtml, "text/html");const pdfDownloadLink = scihubPageDocument.querySelector(`a[onclick$="?download=true'"]`);const match = pdfDownloadLink.getAttribute("onclick").match(/^location\.href='(.*)'$/);const downloadLink = match[1];return downloadLink;} catch (e) {// If there is an error, the article is probably not available on Sci-Hubreturn null;}}function buildDownloadButton(downloadLink) {const r###lt = document.createElement('div');r###lt.classList.add("gs_ggs"); // gs_flconst buttonWrapper = document.createElement('div');buttonWrapper.classList.add("gs_ggsd");const button = document.createElement('div');button.classList.add("gs_or_ggsm");const link = document.createElement('a');link.classList.add("gs_or_ggsm");link.textContent = ` ${SCI_HUB_DOMAIN}`;link.href = downloadLink;link.download = true;link.style = `color: orange`;const extension = document.createElement('span');extension.classList.add("gs_ctg2");extension.textContent = "[PDF]"link.prepend(extension);button.prepend(link);buttonWrapper.prepend(button);r###lt.prepend(buttonWrapper);return r###lt;}function addDownloadButtonOnR###lts() {document.querySelectorAll('.gs_r.gs_scl').forEach(async node => {if (node.querySelector('.gs_ggs')) { // If there is already an available download, do nothingreturn;}const detectedLink = node.querySelector('.gs_rt a').href;const downloadLink = await getDownloadLink(detectedLink);if (!downloadLink) {return;}const downloadButton = buildDownloadButton(downloadLink);node.prepend(downloadButton);});}addDownloadButtonOnR###lts();