Library Helper

A userscript that display links between different libraries and book stores.

Versión del día 01/02/2023. Echa un vistazo a la versión más reciente.

Tendrás que instalar una extensión para tu navegador como Tampermonkey, Greasemonkey o Violentmonkey si quieres utilizar este script.

Necesitarás instalar una extensión como Tampermonkey o Violentmonkey para instalar este script.

Necesitarás instalar una extensión como Tampermonkey o Violentmonkey para instalar este script.

Necesitarás instalar una extensión como Tampermonkey o Userscripts para instalar este script.

Necesitará instalar una extensión como Tampermonkey para instalar este script.

Necesitarás instalar una extensión para administrar scripts de usuario si quieres instalar este script.

(Ya tengo un administrador de scripts de usuario, déjame instalarlo)

Necesitará instalar una extensión como Stylus para instalar este estilo.

Necesitará instalar una extensión como Stylus para instalar este estilo.

Necesitará instalar una extensión como Stylus para instalar este estilo.

Necesitará instalar una extensión del gestor de estilos de usuario para instalar este estilo.

Necesitará instalar una extensión del gestor de estilos de usuario para instalar este estilo.

Necesitará instalar una extensión del gestor de estilos de usuario para instalar este estilo.

(Ya tengo un administrador de estilos de usuario, déjame instalarlo)

// ==UserScript==
// @name         Library Helper
// @namespace    https://github.com/chihchun
// @version      1.14
// @description  A userscript that display links between different libraries and book stores.
// @author       Rex Tsai <[email protected]>
// @match        https://book.tpml.edu.tw/bookDetail/*
// @match        https://book.douban.com/subject/*
// @match        https://books.google.com.tw/books*
// @match        https://books.google.com/books*
// @match        https://books.google.fr/books*
// @match        https://play.google.com/store/books/details/*
// @match        https://play.google.com/store/books/details?id=*
// @match        https://share.readmoo.com/book/*
// @match        https://readmoo.com/book/*
// @match        https://www.amazon.cn/dp/*
// @match        https://www.amazon.cn/gp/product/*
// @match        https://www.amazon.com/*/dp/*
// @match        https://www.amazon.com/gp/product/*
// @match        https://www.books.com.tw/products/*
// @match        https://www.goodreads.com/book/show/*
// @match        https://www.kobo.com/*/ebook*
// @match        https://www.taaze.tw/goods/*
// @match        https://www.taaze.tw/usedList.html?oid=*
// @match        https://www.babelio.com/livres/*
// @match        http://bibliotheque.ville-bobigny.fr/detail-d-une-notice/notice/*
// @match        https://webpac.tphcc.gov.tw/webpac/content.cfm*
// @grant        none
// @require      https://cdnjs.cloudflare.com/ajax/libs/js-yaml/3.13.1/js-yaml.min.js
// @run-at       document-idle
// @license      MIT; https://github.com/chihchun/library-helper/blob/master/LICENSE
// @copyright    2019, chihchun (https://github.com/chihchun)
// @supportURL   https://github.com/chihchun/library-helper/issues
// ==/UserScript==

(function() {
    'use strict';

    var metadata_yaml = `
amazon.com:
    matches:
        - https://www.amazon.com/gp/product/*
    type: 'XPATH'
    metadata:
        title: "//span[@id='ebooksProductTitle']"
        authors: "//span[contains(@data-a-popover, 'Author Dialog')]/a"
        asin: "//form[@id='sendSample']/input[@name='ASIN.0']/@value"
amazon.com/dp:
    matches:
    - https://www.amazon.com/*
    type: 'XPATH'
    metadata:
        title: "//span[@id='ebooksProductTitle']"
        authors: //span[contains(@class, 'author')]/a
        asin: "//form[@id='sendSample']/input[@name='ASIN.0']/@value"

amazon.cn:
    matches:
        - "https://www.amazon.cn/gp/product/*"
        - "https://www.amazon.cn/dp/*"
    type: 'XPATH'
    metadata:
        title: "//span[@id='ebooksProductTitle']"
        authors: "//span[contains(@class,'author')]/a"
        asin: "//form[@id='sendSample']/input[@name='ASIN.0']/@value"

babelio.com:
    matches:
        - "https://www.babelio.com/livres/*"
    type: 'XPATH'
    metadata:
        title: "//h1"
        authors: "//span[@itemprop='name']"

bibliotheque.ville-bobigny.fr:
    matches:
        - "http://bibliotheque.ville-bobigny.fr/detail-d-une-notice/notice/*"
    type: 'XPATH'
    metadata:
        title: "//title"
        authros: "//a[contains(@class, 'ntc-link-auteur')]"

books.com.tw:
    matches: 
        - "https://www.books.com.tw/products/*"
    type: 'XPATH'
    metadata:
        title: "//h1"
        origtitle: "//h2/a[contains(@href,'https://search.books.com.tw/search/query/cat/all/key')]"
        isbn: "//li[contains(text(),'ISBN')]"
        price: "//ul[@class='price']/li/em"
        sellingprice: "//b[@itemprop='price']"
        authors: "//a[contains(@href,'adv_author')]"
        publishdate: "//li[contains(text(),'出版日期')]"

books.google.com.tw:
    matches:
        - "https://books.google.com.tw/books/*"
        - "https://books.google.com/books/*"
        - "https://books.google.fr/books/*"
    type: 'XPATH'
    metadata:
        title: "//meta[@property='og:title']/@content"
        authors: "//a[contains(@href,'q=inauthor')]"

goodreads.com:
    matches:
        - "https://www.goodreads.com/book/show/*"
    type: 'XPATH'
    metadata:
        title: "//meta[@property='og:title']/@content"
        authors: "//a[@class='authorName']/span[@itemprop='name']"
        isbn: "//meta[@property='books:isbn']/@content"
        rating: "//span[@itemprop='ratingValue']"

kobo.com:
    matches:
        - "https://www.kobo.com/*"
    type: 'JSON-LD'
    metadata:
        title: '//span[@class="title product-field"]'
        authors: '//a[@class="contributor-name"]'
        origtitle: "//span[contains(@class, 'subtitle')]"

play.google.com:
    matches:
        - "https://play.google.com/store/books/details/*"
        - "https://play.google.com/store/books/details?id=*"
    type: 'JSON-LD'
    metadata:

readmoo.com:
    matches:
        - "https://share.readmoo.com/book/*"
        - "https://readmoo.com/book/*"
    type: 'XPATH'
    metadata:
        title: "//h2"
        isbn: "//span[@itemprop='ISBN']"
        authors: "//span[@itemprop='name']/a"

taaze.tw:
    matches:
        - "https://www.taaze.tw/goods/*"
    type: 'XPATH'
    metadata:
        title: "//div[contains(@class, 'mBody')]//h1"
        origtitle: "//div[contains(@class, 'mBody')]//h2"
        isbn: "//meta[@property='books:isbn']/@content"
        authors: "//div[@class='authorBrand']//a[contains(@href,'rwd_searchResult.html?keyType%5B%5D=2')]"

taaze.tw/used:
    matches:
        - "https://www.taaze.tw/usedList.html*"
    type: 'XPATH'
    metadata:
        origtitle: "//div[contains(@class, 'hide')]//div[@class='title-next']"
        authors: "//a[contains(@href,'rwd_searchResult.html?keyType%5B%5D=2')]"

tpml.edu.tw:
    matches:
        - "https://book.tpml.edu.tw/bookDetail/*"
    type: 'XPATH'
    metadata:
        title: "//div[@class='bookdata']/h2"
        authors: "//a[contains(@href,'searchField=PN')]"
    delaytime: 1200

webpac.tphcc.gov.tw:
    matches:
        - "https://webpac.tphcc.gov.tw/webpac/content.cfm*"
    type: 'XPATH'
    metadata:
        title: "//h2"
        authors: "//div[@class='detail simple']/p[1]"
        isbn: "//div[@class='detail simple']/p[4]"

`;

var search_yaml = `
博客來:
    url: "https://search.books.com.tw/search/query/key/"
    languages:
        - "en"
        - "en-US"
        - "zh"
        - "zh-TW"
        - "zh-HK"
        - "zh-CN"

Kobo:
    url: "https://www.kobo.com/tw/zh/search?query="
    languages:
        - "en"
        - "en-US"
        - "zh"
        - "zh-TW"
        - "zh-HK"
        - "zh-CN"
        - "fr"
        - "fr-ca"
        - "fr-fr"

GooglePlay:
    url: "https://play.google.com/store/search?c=books&q="
    languages:
        - "en"
        - "en-US"
        - "zh"
        - "zh-TW"
        - "zh-HK"
        - "zh-CN"
        - "fr"
        - "fr-ca"
        - "fr-fr"

AmazonCN:
    url: "https://www.amazon.cn/s?rh=n%3A116169071&k="
    languages:
        - "en"
        - "en-US"
        - "zh"
        - "zh-TW"
        - "zh-HK"
        - "zh-CN"

豆瓣:
    url: "https://search.douban.com/book/subject_search?search_text="
    languages:
        - "zh"
        - "zh-TW"
        - "zh-HK"
        - "zh-CN"

Goodreads:
    url: "https://www.goodreads.com/search?q="
    languages:
        - "en"
        - "en-US"
        - "zh"
        - "zh-TW"
        - "zh-HK"
        - "zh-CN"
        - "fr"
        - "fr-ca"
        - "fr-fr"

Google:
    url: "https://www.google.com/search?tbm=bks&q="
    languages:
        - "en"
        - "en-US"
        - "zh"
        - "zh-TW"
        - "zh-HK"
        - "zh-CN"
        - "fr"
        - "fr-ca"
        - "fr-fr"

北市圖書館:
    url: "https://book.tpml.edu.tw/search?searchField=FullText&searchInput="
    languages:
        - "en"
        - "en-US"
        - "zh"
        - "zh-TW"
        - "zh-HK"
        - "zh-CN"

北市圖書館Hyread:
    url: "https://tpml.ebook.hyread.com.tw/searchList.jsp?search_field=FullText&search_input="
    languages:
        - "zh"
        - "zh-TW"
        - "zh-HK"

北市圖書館UDN讀書館:
    url: "https://reading.udn.com/udnlib/tpml/booksearch?sort=all&opt=all&kw="
    languages:
        - "zh"
        - "zh-TW"
        - "zh-HK"

北區資源中心UDN讀書館:
    url: "https://reading.udn.com/udnlib/publiclib/booksearch?sort=all&opt=all&kw="
    languages:
        - "zh"
        - "zh-TW"
        - "zh-HK"

台灣雲端書庫:
    url: "https://www.ebookservice.tw/#search/"
    languages:
        - "zh"
        - "zh-TW"
        - "zh-HK"

新北市圖書館:
    url: "https://webpac.tphcc.gov.tw/webpac/search.cfm?m=ss&t0=k&c0=and&k0="
    languages:
        - "en"
        - "en-US"
        - "zh"
        - "zh-TW"
        - "zh-HK"
        - "zh-CN"

新北市圖書館Hyread:
    url: "https://tphcc.ebook.hyread.com.tw/searchList.jsp?search_field=FullText&search_input="
    languages:
        - "zh"
        - "zh-TW"
        - "zh-HK"

新北市圖書館UDN讀書館:
    url: "https://reading.udn.com/udnlib/tpc/booksearch?sort=all&opt=all&kw="
    languages:
        - "zh"
        - "zh-TW"
        - "zh-HK"

國立臺灣圖書館Hyread:
    url: "https://ntledu.ebook.hyread.com.tw/searchList.jsp?search_field=FullText&search_input="
    languages:
        - "zh"
        - "zh-TW"
        - "zh-HK"

國立臺灣圖書館UDN讀書館:
    url: "https://reading.udn.com/udnlib/ncl/booksearch?sort=all&opt=all&kw="
    languages:
        - "zh"
        - "zh-TW"
        - "zh-HK"

讀冊:
    url: "https://www.taaze.tw/rwd_searchResult.html?keyword%5B%5D="
    languages:
        - "zh"
        - "zh-TW"
        - "zh-HK"
        - "zh-CN"

Readmoo:
    url: "https://share.readmoo.com/search/keyword?q="
    languages:
        - "zh"
        - "zh-TW"
        - "zh-HK"
        - "zh-CN"

Amazon:
    url: "https://www.amazon.com/s?i=digital-text&k="
    languages:
        - "en"
        - "en-US"
        - "zh"
        - "zh-TW"
        - "zh-HK"
        - "zh-CN"
        - "fr"
        - "fr-ca"
        - "fr-fr"

Babelio:
    url: "https://www.babelio.com/resrecherche.php?Recherche="
    languages:
        - "fr"
        - "fr-ca"
        - "fr-fr"

Bobigny:
    url: "http://bibliotheque.ville-bobigny.fr/recherche-catalogue/recherche-simple/simple/Mots%20Notice/0/"
    languages:
        - "fr"
        - "fr-ca"
        - "fr-fr"
`;

var keywords = ['title', 'authors', 'origtitle', 'isbn', 'asin'];


    parse_metadata();

    function parse_metadata() {
        var rules = jsyaml.load(metadata_yaml);
        var data = {};

        // parse the ld+json
        var jsons = evaluate('//script[@type="application/ld+json"]');
        if(jsons.length > 0) {
            jsons.forEach(function(json) {
                try {
                    var ld = JSON.parse(json);
                    // console.debug(ld);
                    if(ld['@type'] == "Book") {
                        data['title'] = [ld['name']];

                        if(ld['isbn'] != undefined) {
                            data['isbn']= [ld['isbn']];
                        }

                        if(ld['workExample'] != undefined && ld['workExample']['isbn'] != undefined ) {
                        data['isbn']= [ld['workExample']['isbn']];
                        }

                        data['authors'] = [];
                        if(ld['author'] != undefined) {
                            if(Array.isArray(ld['author'])) {
                                ld['author'].forEach(function (author) {
                                    data['authors'].push(author['name']);
                                })
                            } else {
                                data['authors'].push(ld['author']['name']);
                            }
                        }
                    }
                } catch(err) {
                    console.error(err, json)
                }
            })
        }

        for (var domain in rules) {
            rules[domain]['matches'].forEach(function (match) {
                if(document.URL.match(match)) {
                    var metadata = rules[domain]['metadata'];
                    // wait for page is loaded
                    let delaytime = 0;
                    if('delaytime' in rules[domain]) {
                        delaytime = rules[domain]['delaytime'];
                    }

                    // wait for page content to be loaded
                    setTimeout(function() { 
                        // collect metadata
                        for (var key in metadata) {
                            data[key] = evaluate(metadata[key]);
                        }

                        // updates links to other websites
                        if(Object.keys(data).length > 0) {
                            console.debug(data);
                            var dialog = inject();
                            var urlsforsearch = jsyaml.load(search_yaml);

                            for (var service in urlsforsearch) {
                                if(!isPreferLang(urlsforsearch[service]['languages'])) {
                                    continue;
                                }

                                var url = urlsforsearch[service]['url'];
                                var html = `<div>${service}: `;
                                keywords.forEach(function(key) {
                                    if(data[key] != undefined) {
                                        data[key].forEach(function(val) {
                                            var href = url + encodeURI(val);
                                            html += `<a href="${href}" target="_blank">${val}</a> `;
                                        })
                                    }
                                })
                                html += "</div>";
                                dialog.insertAdjacentHTML('beforeend', html)
                            }
                        }
                    }, delaytime);
                }
            });
        }
    }

    function isPreferLang(offers) {
        var languages = window.navigator.userLanguage || window.navigator.languages || [window.navigator.language];
        var ret = false;
        languages.forEach(function(lang) {
            if(offers.includes(lang)) {
                ret = true;
            }
        })
        return ret;
    }

    function inject () {
        var div = document.createElement('div');
        div.id = "libraryhelper";
        div.className = "libraryhelper";
        div.textContent = 'Library helper';
        // Make the DIV element draggable:
        dragElement(div);
        document.body.appendChild(div);

        var style = document.createElement('style');
        style.innerHTML = `
  div.libraryhelper {
    color: blueviolet;
    border: 1px solid #d3d3d3;
    background-color: rgba(255, 255, 255, 0.6);

    position: fixed;
    top: 150px;
    right: 0px;

    width: 30vw;
    max-height: 50vh;
    padding: 10px;

    overflow-x: scroll;
    cursor: move;
    z-index: 9999;
  }
`;
        document.head.appendChild(style);
        return div;
    }


    function dragElement(elmnt) {
        var pos1 = 0, pos2 = 0, pos3 = 0, pos4 = 0;
        if (document.getElementById(elmnt.id + "header")) {
            // if present, the header is where you move the DIV from:
            document.getElementById(elmnt.id + "header").onmousedown = dragMouseDown;
        } else {
            // otherwise, move the DIV from anywhere inside the DIV:
            elmnt.onmousedown = dragMouseDown;
        }

        function dragMouseDown(e) {
            e = e || window.event;
            e.preventDefault();
            // get the mouse cursor position at startup:
            pos3 = e.clientX;
            pos4 = e.clientY;
            document.onmouseup = closeDragElement;
            // call a function whenever the cursor moves:
            document.onmousemove = elementDrag;
        }

        function elementDrag(e) {
            e = e || window.event;
            e.preventDefault();
            // calculate the new cursor position:
            pos1 = pos3 - e.clientX;
            pos2 = pos4 - e.clientY;
            pos3 = e.clientX;
            pos4 = e.clientY;
            // set the element's new position:
            elmnt.style.top = (elmnt.offsetTop - pos2) + "px";
            elmnt.style.left = (elmnt.offsetLeft - pos1) + "px";
        }

        function closeDragElement() {
            // stop moving when mouse button is released:
            document.onmouseup = null;
            document.onmousemove = null;
        }
    }

    function evaluate(xpath, doc = document.documentElement) {
        var evaluator = new XPathEvaluator(); 
        var result = evaluator.evaluate(xpath, doc, null, XPathResult.ANY_TYPE, null);
        var node = undefined;
        var texts = [];

        while(node = result.iterateNext()) {
            var text;

            if (node instanceof Attr) {
                text = node.value
            } else {
                text = node.innerText;
            }
            if(text == undefined || text == 'null') {
                console.error(xpath + " not found on " + document.URL);
                continue;
            }
            // fixing up content
            text = text.replace("ISBN:", "").
                    replace("作者 :", "").
                    replace("出版日期:", "").
                    replace(" (電子書)", "");
            const subtitles = text.split(':');
            if(subtitles.length > 1) {
                texts.push(subtitles[0]);
            }
            texts.push(text);
        }
        return texts;
    }
})();