下载有章文档
// ==UserScript==// @name 有章PDF下载// @namespace http://tampermonkey.net/// @version 0.0.4// @description 下载有章文档// @author JoyofFire// @match https://www.ilawpress.com/assets/plugin/pdfviewer/web/viewer.html// @icon https://www.google.com/s2/favicons?sz=64&domain=ilawpress.com// @grant none// @run-at document-start// @license GPL-3.0-only// ==/UserScript==(function() {'use strict';// 全局常量const DL_PDF_API = "download_pdf";const DL_BTN = `<button id="dl-pdf" class="extend-navbar-btn fa fa-download" title="下载PDF" style="margin-right:1.1em;color:red" onclick="${DL_PDF_API}()"><span>下载PDF</span></button>`; //`<button id="dl-pdf" class="extend-navbar-btn fa fa-download" title="下载PDF" style="position:fixed;right: 2em;color:red" onclick="${DL_PDF_API}()"><span>下载PDF</span></button>`const make_blob_url = get_fn_call(URL, "createObjectURL");const insert_html_elem = get_fn_call(Element.prototype, "insertAdjacentHTML");function print(...args) {const time = new Date().toTimeString().slice(0, 8);console.info(`[wk ${time}]`, ...args);}function get_fn_call(obj, fn_name) {const fn = obj[fn_name];const call = fn.call.bind(fn);print(`got bound ${fn_name}.call:`, call);return call;}/*** @param {string} selectors* @returns {HTMLElement}*/function $(selectors) {return document.querySelector(selectors);}function add_dl_btn() {insert_html_elem($("#toolbarViewerRight"), "afterbegin", DL_BTN);print("btn added");}function on_data(data) {const blob = new Blob([data], { type: "application/pdf" });const url = make_blob_url(URL, blob);window.data = data;window.url = url;window[DL_PDF_API] = () => open(url);print("data:", data);print("url:", window.url);}function hook_then() {print("entered hook_then");const { then } = Promise.prototype;Promise.prototype.then = function(...args) {for (const [i, arg] of args.entries()) {if (String(arg).includes("(pdfDocument) {")) {print(...args);args[i] = function(doc) {print("doc:", doc);doc.getData().then(on_data);return arg.call(this, doc);};break;}}return then.apply(this, args);};}function on_dom_loaded() {print("dom loaded");add_dl_btn();}function hook_fetch() {const myfetch = get_fn_call(window, "fetch");window.fetch = function(url, ...args) {//debugger;const aim = /[/]pdf[/]trybook[/][0-9]+/;const _url = `${url}`;const replaced = aim.test(_url)? _url.replace("/trybook/", "/book/"): url;//debugger;const ret_val = myfetch(this, replaced, ...args);return ret_val;//return myfetch(this, url, ...args);};print("fetch hooked:", window.fetch);}function main() {print("entered main");document.addEventListener("DOMContentLoaded", on_dom_loaded);hook_fetch();hook_then();}main();})();