initial commit

dist/main.js

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+// ==UserScript==
+// @name         musescore-downloader
+// @namespace    https://www.xmader.com/
+// @version      0.1.0
+// @description  免登录、免 Musescore Pro，下载 musescore.com 上的曲谱
+// @author       Xmader
+// @match        https://musescore.com/user/*/scores/*
+// @license      MIT
+// @copyright    Copyright (c) 2019 Xmader
+// @grant        none
+// ==/UserScript==
+
+(function () {
+    'use strict';
+
+    const getIndexPath = (id) => {
+        const idStr = String(id);
+        // 获取最后三位，倒序排列
+        // "5449062" -> ["2", "6", "0"]
+        const indexN = idStr.split("").reverse().slice(0, 3);
+        return indexN.join("/");
+    };
+
+    // @ts-ignore
+    const scorePlayer = window.UGAPP.store.jmuse_settings.score_player;
+    const { id, vid } = scorePlayer.json;
+    const baseURL = scorePlayer.urls.image_path;
+    const scoreHexId = baseURL.split("/").filter(Boolean).reverse()[1];
+    const msczURL = `https://musescore.com/static/musescore/scoredata/score/${getIndexPath}/${id}/score_${vid}_${scoreHexId}.mscz`;
+    const pdfURL = baseURL + "score_full.pdf";
+    const mxlURL = baseURL + "score.mxl";
+    const { midi: midiURL, mp3: mp3URL } = scorePlayer.urls;
+    const btnsDiv = document.querySelectorAll("aside section > div")[3];
+    const downloadBtn = btnsDiv.querySelector("button");
+    downloadBtn.onclick = null;
+    const downloadURLs = {
+        "Musescore": msczURL,
+        "PDF": pdfURL,
+        "MusicXML": mxlURL,
+        "MIDI": midiURL,
+        "MP3": mp3URL,
+    };
+    const newDownloadBtns = Object.keys(downloadURLs).map((name) => {
+        const url = downloadURLs[name];
+        const btn = downloadBtn.cloneNode(true);
+        btn.onclick = () => {
+            window.open(url);
+        };
+        return btn;
+    });
+    downloadBtn.replaceWith(...newDownloadBtns);
+
+}());