v0.1.0

README.md

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+# Taiwan eBook Downloader
+
+Download PDF books from [Taiwan eBook database](https://taiwanebook.ncl.edu.tw).
+
+## Install
+For Chrome, Edge, etc:
+* Grab the latest version of package(.crx) in the [releases](https://github.com/elementdavv/taiwan_ebook_downloader/releases) page.
+* Drop the package from file manager to Extension Manager page of your browser(developer mode must be enabled).
+
+For Firefox:
+* Grab the latest version of package(.xpi) in the [releases](https://github.com/elementdavv/taiwan_ebook_downloader/releases) page.
+* Drop the package from file manager to Extensions page of your browser.
+* Grant Optional permissions from Permissions tab on the extension page.
+
+Alternatively, install automatically from browser extension repositories(not always up to date):
+
+[Chrome WebStore](https://chrome.google.com/webstore/detail/taiwan-ebook-downloader/ealhmnpgajakmajhcdplfnpppdjknpoe) / [Edge Addons](https://microsoftedge.microsoft.com/addons/detail/taiwan-ebook-downloader/ifbmiaibmbefelonkecidnemlcdbllkh) / [Mozilla Addons (Firefox)](https://addons.mozilla.org/en-US/firefox/addon/taiwan_ebook_downloader/)(Optional permissions must be granted as well)
+
+## Usage
+In [Taiwan eBook database](https://taiwanebook.ncl.edu.tw) pages, book download buttons will show up automatically.
+
+## License
+[GPL3](LICENSE) ©Element Davv
+
+Any questions and/or suggestions are appreciatiated.
+
+## Donation
+If you would like to support my development, you can donate some coins. [![donate](resources/pp-logo.png)](https://paypal.me/timelegend)

moz/_locales/en/messages.json

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+{
+    "description": { "message": "Download PDF ebooks from Taiwan eBook database"}
+    , "title": { "message": "Taiwan eBook database Downloader" }
+    , "download": { "message": "Download " }
+}

moz/_locales/zh_CN/messages.json

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+{
+    "description": { "message": "从台湾华文电子书库下载 PDF 电子书"}
+    , "title": { "message": "台湾华文电子书库下载器" }
+    , "download": { "message": "下载 " }
+}

moz/_locales/zh_TW/messages.json

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+{
+    "description": { "message": "從臺灣華文電子書庫下載 PDF 電子書"}
+    , "title": { "message": "臺灣華文電子書庫下載器" }
+    , "download": { "message": "下載 " }
+}

moz/js/bg.js

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+/*
+ * bg.js
+ * Copyright (C) 2023 Element Davv<[email protected]>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+(function(){
+    'use strict';
+
+    chrome.action.onClicked.addListener(tab => {
+        const url = "https://taiwanebook.ncl.edu.tw";
+        chrome.tabs.create({ url: url })
+    });
+
+    chrome.tabs.onUpdated.addListener((tabid, changeinfo, tab) => {
+        const re = /https:\/\/taiwanebook.ncl.edu.tw\/(zh-tw|en)\/(category|time|collection|search|book)\/.+/;
+        const re1 = /reader/;
+        if (changeinfo.status == 'complete') {
+            if (!tab.url.match(re) || tab.url.match(re1)) return;
+            chrome.scripting.executeScript({
+                files: ['js/content.js']
+                , target: {tabId: tabid}
+            });
+        }
+    });
+
+})();

moz/js/content.js

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+/*
+ * content.js
+ * Copyright (C) 2023 Element Davv<[email protected]>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+(async () => {
+    if (typeof window.content1ted === 'undefined' ) {
+        const src = chrome.runtime.getURL('js/content1.js');
+        window.content1ted = await import(src);
+        window.content1ted.default();
+    }
+})();

moz/js/content1.js

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+/*
+ * content1.js
+ * Copyright (C) 2023 Element Davv<[email protected]>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+export default function(){
+    'use strict';
+
+    function showDownload() {
+        const items = document.getElementsByClassName('items');
+        if (items.length > 0) {
+            const itemlist = items[0].children;
+            for (var i = 0; i < itemlist.length; i++) {
+                showForItem(itemlist[i]);
+            }
+        }
+        else {
+            showForBook();
+        }
+    }
+
+    async function showForBook() {
+        const blues = document.getElementsByClassName('ui four column grid');
+        if (blues.length == 0) return;
+
+        const blue = blues[0];
+        const links = await getDownloadLinks(document.URL);
+        links.forEach((link, i) => {
+            addButton(link, blue, 'afterend');
+        });
+    }
+
+    async function showForItem(item) {
+        const headers = item.getElementsByClassName('header');
+        const metas = item.getElementsByClassName('meta');
+        if (headers.length == 0) return;
+        if (metas.length == 0) return;
+
+        const header = headers[0];
+        const meta = metas[0];
+        const href = header.getAttribute('href');
+        const links = await getDownloadLinks(href);
+        links.forEach((link, i) => {
+            addButton(link, meta, 'beforeend');
+        });
+    }
+
+    const base = 'https://taiwanebook.ncl.edu.tw/';
+    const classList = ['ui','blue', 'button']
+
+    function addButton(link, node, pos) {
+        const a = document.createElement('a');
+        a.href = base + link;
+        const fname = link.substring(link.lastIndexOf('/') + 1)
+        a.download = fname;
+        a.textContent = chrome.i18n.getMessage('download') + fname;
+        classList.forEach((cls, j) => {
+            a.classList.add(cls);
+        });
+        node.insertAdjacentElement(pos, a);
+        const br = document.createElement('br');
+        node.insertAdjacentElement(pos, br);
+    }
+
+    async function getDownloadLinks(url) {
+        const response = await fetch(url+ '/reader');
+        if (response.ok) {
+            const text = await response.text();
+            const re = /ebkFiles.*?PDF/g;
+            const files = text.match(re);
+
+            var links = [];
+            if (files.length > 1) {
+                for (var i = 0; i < files.length - 1; i++) {
+                    links.push(files[i]);
+                }
+            }
+            else {
+                links.push(files[0]);
+            }
+        }
+        return links;
+    }
+
+    console.log('Taiwanebook Downloader v0.1.0 in action');
+    showDownload();
+};

moz/manifest.json

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+{
+    "manifest_version": 3
+    , "author": "Element Davv <[email protected]>"
+    , "description": "__MSG_description__"
+    , "homepage_url": "https://github.com/elementdavv/taiwan_ebook_downloader"
+    , "name": "Taiwan eBook Downloader"
+    , "version": "0.1.0"
+    , "default_locale": "en"
+    , "browser_specific_settings": {
+        "gecko": {
+            "id": "[email protected]"
+        }
+    }
+    , "icons": {
+        "128": "images/logo128.png"
+    }
+    , "action": {
+        "default_icon": {
+            "128": "images/logo128.png"
+        }
+        , "default_title": "__MSG_title__"
+    }
+    , "background": {
+        "scripts": ["js/bg.js"]
+        , "type": "module"
+    }
+    , "permissions": [
+        "scripting"
+        , "tabs"
+    ]
+    , "host_permissions": [
+        "https://taiwanebook.ncl.edu.tw/*"
+    ]
+    , "web_accessible_resources": [{
+        "resources": [
+            "js/*"
+        ]
+        , "matches": ["https://taiwanebook.ncl.edu.tw/*"]
+    }]
+}

src/_locales/en/messages.json

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+{
+    "description": { "message": "Download PDF ebooks from Taiwan eBook database"}
+    , "title": { "message": "Taiwan eBook database Downloader" }
+    , "download": { "message": "Download " }
+}

src/_locales/zh_CN/messages.json

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+{
+    "description": { "message": "从台湾华文电子书库下载 PDF 电子书"}
+    , "title": { "message": "台湾华文电子书库下载器" }
+    , "download": { "message": "下载 " }
+}

src/_locales/zh_TW/messages.json

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+{
+    "description": { "message": "從臺灣華文電子書庫下載 PDF 電子書"}
+    , "title": { "message": "臺灣華文電子書庫下載器" }
+    , "download": { "message": "下載 " }
+}

src/js/bg.js

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+/*
+ * bg.js
+ * Copyright (C) 2023 Element Davv<[email protected]>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+(function(){
+    'use strict';
+
+    chrome.action.onClicked.addListener(tab => {
+        const url = "https://taiwanebook.ncl.edu.tw";
+        chrome.tabs.create({ url: url })
+    });
+
+    chrome.tabs.onUpdated.addListener((tabid, changeinfo, tab) => {
+        const re = /https:\/\/taiwanebook.ncl.edu.tw\/(zh-tw|en)\/(category|time|collection|search|book)\/.+/;
+        const re1 = /reader/;
+        if (changeinfo.status == 'complete') {
+            if (!tab.url.match(re) || tab.url.match(re1)) return;
+            chrome.scripting.executeScript({
+                files: ['js/content.js']
+                , target: {tabId: tabid}
+            });
+        }
+    });
+
+})();

src/js/content.js

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+/*
+ * content.js
+ * Copyright (C) 2023 Element Davv<[email protected]>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+(async () => {
+    if (typeof window.content1ted === 'undefined' ) {
+        const src = chrome.runtime.getURL('js/content1.js');
+        window.content1ted = await import(src);
+        window.content1ted.default();
+    }
+})();

src/js/content1.js

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+/*
+ * content1.js
+ * Copyright (C) 2023 Element Davv<[email protected]>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+export default function(){
+    'use strict';
+
+    function showDownload() {
+        const items = document.getElementsByClassName('items');
+        if (items.length > 0) {
+            const itemlist = items[0].children;
+            for (var i = 0; i < itemlist.length; i++) {
+                showForItem(itemlist[i]);
+            }
+        }
+        else {
+            showForBook();
+        }
+    }
+
+    async function showForBook() {
+        const blues = document.getElementsByClassName('ui four column grid');
+        if (blues.length == 0) return;
+
+        const blue = blues[0];
+        const links = await getDownloadLinks(document.URL);
+        links.forEach((link, i) => {
+            addButton(link, blue, 'afterend');
+        });
+    }
+
+    async function showForItem(item) {
+        const headers = item.getElementsByClassName('header');
+        const metas = item.getElementsByClassName('meta');
+        if (headers.length == 0) return;
+        if (metas.length == 0) return;
+
+        const header = headers[0];
+        const meta = metas[0];
+        const href = header.getAttribute('href');
+        const links = await getDownloadLinks(href);
+        links.forEach((link, i) => {
+            addButton(link, meta, 'beforeend');
+        });
+    }
+
+    const base = 'https://taiwanebook.ncl.edu.tw/';
+    const classList = ['ui','blue', 'button']
+
+    function addButton(link, node, pos) {
+        const a = document.createElement('a');
+        a.href = base + link;
+        const fname = link.substring(link.lastIndexOf('/') + 1)
+        a.download = fname;
+        a.textContent = chrome.i18n.getMessage('download') + fname;
+        classList.forEach((cls, j) => {
+            a.classList.add(cls);
+        });
+        node.insertAdjacentElement(pos, a);
+        const br = document.createElement('br');
+        node.insertAdjacentElement(pos, br);
+    }
+
+    async function getDownloadLinks(url) {
+        const response = await fetch(url+ '/reader');
+        if (response.ok) {
+            const text = await response.text();
+            const re = /ebkFiles.*?PDF/g;
+            const files = text.match(re);
+
+            var links = [];
+            if (files.length > 1) {
+                for (var i = 0; i < files.length - 1; i++) {
+                    links.push(files[i]);
+                }
+            }
+            else {
+                links.push(files[0]);
+            }
+        }
+        return links;
+    }
+
+    console.log('Taiwanebook Downloader v0.1.0 in action');
+    showDownload();
+};