Escaping & + removing html from desctipion.
This commit is contained in:
Vahagn Khachatryan
779
src/epub.js
779
src/epub.js
@@ -1,380 +1,399 @@
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// var JSZip = require('jszip');
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// var StringDecoder = require('string_decoder').StringDecoder;
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// let html = new StringDecoder("utf-8").write(content)
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var textDecoder = new TextDecoder("utf-8");
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// var xmlSerializer = require('xmlserializer')
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var xmlSerializer = new XMLSerializer();
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// var DOMParser = require('xmldom').DOMParser
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var domParser = new DOMParser();
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var generatedBufferType = 'blob'
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class EpubXhtml{
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constructor(filename) {
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this.filename = filename
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this.mime = 'application/xhtml+xml'
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}
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convert(content){
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let html = textDecoder.decode(content);
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let dom = domParser.parseFromString(html, 'text/html');
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let xml = xmlSerializer.serializeToString(dom);
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let css_link = ''
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if (this.css) {
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for (let i in this.css){
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css_link += ` <link href="${this.css[i]}" rel="stylesheet" type="text/css"/>\n`
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}
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}
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let title = ''
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if (this.title) {
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title = this.title
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}
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let cnt = `<?xml version="1.0" encoding="utf-8" standalone="no"?>
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<!DOCTYPE html>
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<html xmlns="http://www.w3.org/1999/xhtml"
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xmlns:epub="http://www.idpf.org/2007/ops">
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<head>
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<title>${title}</title>
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${css_link}
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</head>
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<body>
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${xml}
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</body>
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</html>
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`
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return cnt
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}
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}
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class EpubOpf{
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constructor(filename, meta) {
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this.filename = filename
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this.meta = meta
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}
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generate(){
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let m = this.meta
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let cnt = `<?xml version="1.0" encoding="utf-8"?>
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<package xmlns="http://www.idpf.org/2007/opf"
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xmlns:dc="http://purl.org/dc/elements/1.1/"
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xmlns:dcterms="http://purl.org/dc/terms/"
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unique-identifier="pub-id"
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version="3.0">
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<metadata>
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<meta property="dcterms:modified">2013-03-22T12:24:00Z</meta>
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<dc:rights>Please read the legal notice included in this e-book and/or check the copyright status in your country.</dc:rights>
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<dc:identifier id="pub-id">${m.metadata.book_id}</dc:identifier>
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<dc:title>${m.metadata.title}</dc:title>
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<dc:language>${m.metadata.language}</dc:language>
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`
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if (m.metadata.description){
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cnt += ` <dc:description>${m.metadata.description}</dc:description>\n`
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}
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if (m.metadata.isbn){
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cnt += ` <dc:identifier id="isbn">${m.metadata.isbn}</dc:identifier>\n`
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let onixcode = m.metadata.isbn.length > 10 ? '15' : '02'
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cnt += ` <meta refines="#isbn" property="identifier-type" scheme="onix:codelist5">${onixcode}</meta>\n`
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}
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if (m.metadata.publisher){
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cnt += ` <dc:publisher>${m.metadata.publisher}</dc:publisher>\n`
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}
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if (m.metadata.cover_image){
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cnt += ` <meta content="cover-image" name="${m.metadata.cover_image}"/>\n`
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}
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for (let s in m.metadata.subject){
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cnt += ` <dc:subject>${m.metadata.subject[s]}</dc:subject>\n`
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}
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for (let a in m.metadata.author){
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cnt += ` <dc:creator id="creator-${a}">${m.metadata.author[a]}</dc:creator>\n`
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cnt += ` <meta refines="#creator-${a}" property="role" schema="marc:relators">aut</meta>\n`
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}
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cnt +=' </metadata>\n <manifest>\n'
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for (let id in m.manifest){
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let f = m.manifest[id]
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if (f.hasOwnProperty('property')){
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cnt += ` <item id="${f.id}" media-type="${f.mime}" href="${f.filename}" properties="${f.property}"/>\n`
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}else{
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cnt += ` <item id="${f.id}" media-type="${f.mime}" href="${f.filename}"/>\n`
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}
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}
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cnt += ` </manifest>\n <spine toc="${m.getId(m.ncx().filename)}">\n`
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for (let i in m.spine){
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cnt += ` <itemref idref="${m.spine[i]}" />\n`
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}
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cnt += ' </spine>\n <guide>\n'
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cnt += ` <reference href="${m.nav().filename}" title="Table of Contents" type="toc"/>\n`
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cnt += ' </guide>\n</package>\n'
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return cnt
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}
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}
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class EpubNcx{
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constructor(filename, meta) {
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this.filename = filename
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this.meta = meta
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this.mime = 'application/x-dtbncx+xml'
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}
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generate(){
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let m = this.meta
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let max_depth = 0;
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let toc = ''
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for (let i = 0; i < m.toc.length; ++i) {
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let toc_item = m.toc[i]
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toc +=
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` <navPoint class="chapter" id="navpoint-${i}" playOrder="${i}">\n`
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+` <navLabel><text>${toc_item.label}</text></navLabel>\n`
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+` <content src="${toc_item.href}"/>\n`
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if (max_depth < toc_item.depth) {
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max_depth = toc_item.depth
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}
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let next_depth = 1
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if (i+1 < m.toc.length) {
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next_depth = m.toc[i+1].depth
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}
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for (let current_dept = toc_item.depth;
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current_dept >= next_depth;
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current_dept--) {
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toc += ' </navPoint>\n'
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}
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}
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return `<?xml version="1.0" encoding="UTF-8"?>
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<ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" xml:lang="en" version="2005-1">
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<head>
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<meta name="dtb:uid" content="${m.metadata.book_id}"/>
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<meta name="dtb:depth" content="${max_depth}"/>
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<meta name="dtb:totalPageCount" content="0"/>
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<meta name="dtb:maxPageNumber" content="0"/>
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</head>
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<docTitle>
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<text>${m.metadata.title}</text>
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</docTitle>
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<navMap>
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${toc}
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</navMap>
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</ncx>
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`
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}
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}
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class EpubNav{
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constructor(filename, meta) {
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this.filename = filename
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this.meta = meta
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this.mime = 'application/xhtml+xml'
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}
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generate(){
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let m = this.meta
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let toc = ''
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for (let i = 0; i < m.toc.length; ++i){
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let toc_item = m.toc[i]
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toc += ` <li><a href="${toc_item.href}">${toc_item.label}</a>`
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let next_depth = 1
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if (i+1 < m.toc.length){
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next_depth = m.toc[i+1].depth
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}
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let current_dept = toc_item.depth
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if (current_dept == next_depth){
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toc += ' </li>\n'
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}
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else if (current_dept < next_depth){
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for (; current_dept < next_depth; current_dept++){
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toc += ' <ol>\n'
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}
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}
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else if (current_dept > next_depth){
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for (; current_dept > next_depth; current_dept--){
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toc += ' </li></ol>\n'
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}
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toc += ' </li>\n'
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}
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}
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return `<?xml version="1.0" encoding="utf-8" standalone="no"?>
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<!DOCTYPE html>
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<html xmlns="http://www.w3.org/1999/xhtml"
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xmlns:epub="http://www.idpf.org/2007/ops">
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<head>
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<title>${m.metadata.title}</title>
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</head>
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<body>
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<h1>${m.metadata.title}</h1>
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<nav epub:type="toc" id="toc">
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<h2>Table Of Content</h2>
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<ol>
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${toc}
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</ol>
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</nav>
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</body>
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</html>
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`
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}
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}
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class EpubMeta{
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constructor() {
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this.metadata = {
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book_id: 'book_id',
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isbn: null,
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title: 'title',
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language: 'en',
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author: [],
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publisher: null,
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cover_image: null,
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subject: [],
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description: null
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}
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this.manifest = {}
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this.spine = []
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this.guide = []
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this.toc = []
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this.override = {}
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this.addManifest(this.ncx().filename, this.ncx().mime)
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this.addManifest(this.nav().filename, this.nav().mime, 'nav')
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this.manifest[this.nav().filename].property = 'nav' //TODO
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}
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addBookId(book_id){
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this.metadata.book_id = book_id
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}
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addTitle(title){
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this.metadata.title = title
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}
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addAuthor(author){
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this.metadata.author.push(author)
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}
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addPublisher(publisher){
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this.metadata.publisher = publisher
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}
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addSubject(subject){
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this.metadata.subject.push(subject)
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}
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addLanguage(lang){
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this.metadata.language = lang
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}
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addDescription(description){
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this.metadata.description = description
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}
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addIsbn(isbn){
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this.metadata.isbn = isbn
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}
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addMetaData(){
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}
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addManifest(filename, mime){
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if (mime && mime.startsWith('text/html')){
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let o = new EpubXhtml(filename)
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this.override[filename] = o
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mime = o.mime
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}
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let id = 'id_' + filename.replace(/[^a-z0-9]/gi, '_').toLowerCase()
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this.manifest[filename] =
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{
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filename : filename,
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mime : mime,
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id : id
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}
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}
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addHtmlComponents(filename, title, css){
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if (filename in this.override){
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this.override[filename].title = title
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this.override[filename].css = css
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}
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}
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getId(filename){
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return this.manifest[filename].id
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}
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addSpine(filename){
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this.spine.push(this.manifest[filename].id)
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}
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addCover(filename){
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this.manifest[filename].property = 'cover-image'
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}
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addToc(filename, label, depth){
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this.toc.push({
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href: filename,
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label: label,
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depth: depth
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})
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}
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opf(){
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return new EpubOpf("content.opf", this)
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}
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ncx(){
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return new EpubNcx("content.ncx", this)
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}
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nav(){
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return new EpubNav("content.xhtml", this)
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}
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}
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class EpubWriter{
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constructor() {
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this.zip = new JSZip();
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this.meta = new EpubMeta();
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this.override = {}
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this.createEpubStruct();
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}
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createEpubStruct(){
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this.zip.file("mimetype", "application/epub+zip", {compression: "STORE"});
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this.zip.file("META-INF/container.xml",
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`<?xml version='1.0' encoding='utf-8'?>
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<container xmlns="urn:oasis:names:tc:opendocument:xmlns:container" version="1.0">
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<rootfiles>
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<rootfile media-type="application/oebps-package+xml" full-path="EPUB/content.opf"/>
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</rootfiles>
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</container>
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` );
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}
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addMetaInfoFile(filename, content){
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this.zip.file("META-INF/"+filename, content)
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}
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addFile(filename, content){
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console.log(`epub ${filename}:`)
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if (filename in this.meta.override){
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let o = this.meta.override[filename]
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content = o.convert(content)
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}
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this.zip.file("EPUB/"+filename, content)
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}
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generateAsync(){
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this.addFile(this.meta.ncx().filename, this.meta.ncx().generate())
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this.addFile(this.meta.nav().filename, this.meta.nav().generate())
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this.addFile(this.meta.opf().filename, this.meta.opf().generate())
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return this.zip.generateAsync({
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type: generatedBufferType,
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compression: "DEFLATE"})
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}
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}
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// module.exports = EpubWriter
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// var JSZip = require('jszip');
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// var StringDecoder = require('string_decoder').StringDecoder;
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// let html = new StringDecoder("utf-8").write(content)
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var textDecoder = new TextDecoder("utf-8");
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// var xmlSerializer = require('xmlserializer')
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var xmlSerializer = new XMLSerializer();
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// var DOMParser = require('xmldom').DOMParser
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var domParser = new DOMParser();
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var generatedBufferType = 'blob'
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/**
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* I hope JS is single threaded and not preemptive.
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* Escape XML entities. Ex. & -> &
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* @param {*} text
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*/
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var escape = function (text){
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return $('<div>').text(text).html()
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}
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var html2txt = function (html) {
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html = html.replace(/<\/p>/gi, "\n");
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html = html.replace(/<\/li>/gi, "\n");
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html = html.replace(/<li>/gi, "-");
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html = html.replace(/<b>/gi, "*");
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html = html.replace(/<\/b>/gi, "*");
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return $('<div>').html(html).text()
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}
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class EpubXhtml{
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constructor(filename) {
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this.filename = filename
|
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this.mime = 'application/xhtml+xml'
|
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}
|
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|
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convert(content){
|
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let html = textDecoder.decode(content);
|
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let dom = domParser.parseFromString(html, 'text/html');
|
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let xml = xmlSerializer.serializeToString(dom);
|
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|
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let css_link = ''
|
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if (this.css) {
|
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for (let i in this.css){
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css_link += ` <link href="${this.css[i]}" rel="stylesheet" type="text/css"/>\n`
|
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}
|
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}
|
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let title = ''
|
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if (this.title) {
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title = this.title
|
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}
|
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|
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let cnt = `<?xml version="1.0" encoding="utf-8" standalone="no"?>
|
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<!DOCTYPE html>
|
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<html xmlns="http://www.w3.org/1999/xhtml"
|
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xmlns:epub="http://www.idpf.org/2007/ops">
|
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<head>
|
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<title>${title}</title>
|
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${css_link}
|
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</head>
|
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<body>
|
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${xml}
|
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</body>
|
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</html>
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`
|
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return cnt
|
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}
|
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}
|
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|
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class EpubOpf{
|
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constructor(filename, meta) {
|
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this.filename = filename
|
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this.meta = meta
|
||||
}
|
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|
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generate(){
|
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let m = this.meta
|
||||
let cnt = `<?xml version="1.0" encoding="utf-8"?>
|
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<package xmlns="http://www.idpf.org/2007/opf"
|
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xmlns:dc="http://purl.org/dc/elements/1.1/"
|
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xmlns:dcterms="http://purl.org/dc/terms/"
|
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unique-identifier="pub-id"
|
||||
version="3.0">
|
||||
<metadata>
|
||||
<meta property="dcterms:modified">2013-03-22T12:24:00Z</meta>
|
||||
<dc:rights>Please read the legal notice included in this e-book and/or check the copyright status in your country.</dc:rights>
|
||||
<dc:identifier id="pub-id">${m.metadata.book_id}</dc:identifier>
|
||||
<dc:title>${m.metadata.title}</dc:title>
|
||||
<dc:language>${m.metadata.language}</dc:language>
|
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`
|
||||
|
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if (m.metadata.description){
|
||||
cnt += ` <dc:description>${m.metadata.description}</dc:description>\n`
|
||||
}
|
||||
if (m.metadata.isbn){
|
||||
cnt += ` <dc:identifier id="isbn">${m.metadata.isbn}</dc:identifier>\n`
|
||||
let onixcode = m.metadata.isbn.length > 10 ? '15' : '02'
|
||||
cnt += ` <meta refines="#isbn" property="identifier-type" scheme="onix:codelist5">${onixcode}</meta>\n`
|
||||
}
|
||||
if (m.metadata.publisher){
|
||||
cnt += ` <dc:publisher>${m.metadata.publisher}</dc:publisher>\n`
|
||||
}
|
||||
if (m.metadata.cover_image){
|
||||
cnt += ` <meta content="cover-image" name="${m.metadata.cover_image}"/>\n`
|
||||
}
|
||||
for (let s in m.metadata.subject){
|
||||
cnt += ` <dc:subject>${m.metadata.subject[s]}</dc:subject>\n`
|
||||
}
|
||||
for (let a in m.metadata.author){
|
||||
cnt += ` <dc:creator id="creator-${a}">${m.metadata.author[a]}</dc:creator>\n`
|
||||
cnt += ` <meta refines="#creator-${a}" property="role" schema="marc:relators">aut</meta>\n`
|
||||
}
|
||||
|
||||
cnt +=' </metadata>\n <manifest>\n'
|
||||
|
||||
for (let id in m.manifest){
|
||||
let f = m.manifest[id]
|
||||
if (f.hasOwnProperty('property')){
|
||||
cnt += ` <item id="${f.id}" media-type="${f.mime}" href="${f.filename}" properties="${f.property}"/>\n`
|
||||
}else{
|
||||
cnt += ` <item id="${f.id}" media-type="${f.mime}" href="${f.filename}"/>\n`
|
||||
}
|
||||
}
|
||||
cnt += ` </manifest>\n <spine toc="${m.getId(m.ncx().filename)}">\n`
|
||||
for (let i in m.spine){
|
||||
cnt += ` <itemref idref="${m.spine[i]}" />\n`
|
||||
}
|
||||
cnt += ' </spine>\n <guide>\n'
|
||||
cnt += ` <reference href="${m.nav().filename}" title="Table of Contents" type="toc"/>\n`
|
||||
cnt += ' </guide>\n</package>\n'
|
||||
return cnt
|
||||
}
|
||||
}
|
||||
|
||||
class EpubNcx{
|
||||
constructor(filename, meta) {
|
||||
this.filename = filename
|
||||
this.meta = meta
|
||||
this.mime = 'application/x-dtbncx+xml'
|
||||
}
|
||||
|
||||
generate(){
|
||||
let m = this.meta
|
||||
|
||||
let max_depth = 0;
|
||||
let toc = ''
|
||||
for (let i = 0; i < m.toc.length; ++i) {
|
||||
let toc_item = m.toc[i]
|
||||
toc +=
|
||||
` <navPoint class="chapter" id="navpoint-${i}" playOrder="${i}">\n`
|
||||
+` <navLabel><text>${toc_item.label}</text></navLabel>\n`
|
||||
+` <content src="${toc_item.href}"/>\n`
|
||||
|
||||
if (max_depth < toc_item.depth) {
|
||||
max_depth = toc_item.depth
|
||||
}
|
||||
|
||||
let next_depth = 1
|
||||
if (i+1 < m.toc.length) {
|
||||
next_depth = m.toc[i+1].depth
|
||||
}
|
||||
|
||||
for (let current_dept = toc_item.depth;
|
||||
current_dept >= next_depth;
|
||||
current_dept--) {
|
||||
toc += ' </navPoint>\n'
|
||||
}
|
||||
}
|
||||
|
||||
return `<?xml version="1.0" encoding="UTF-8"?>
|
||||
<ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" xml:lang="en" version="2005-1">
|
||||
<head>
|
||||
<meta name="dtb:uid" content="${m.metadata.book_id}"/>
|
||||
<meta name="dtb:depth" content="${max_depth}"/>
|
||||
<meta name="dtb:totalPageCount" content="0"/>
|
||||
<meta name="dtb:maxPageNumber" content="0"/>
|
||||
</head>
|
||||
<docTitle>
|
||||
<text>${m.metadata.title}</text>
|
||||
</docTitle>
|
||||
<navMap>
|
||||
${toc}
|
||||
</navMap>
|
||||
</ncx>
|
||||
`
|
||||
}
|
||||
}
|
||||
|
||||
class EpubNav{
|
||||
constructor(filename, meta) {
|
||||
this.filename = filename
|
||||
this.meta = meta
|
||||
this.mime = 'application/xhtml+xml'
|
||||
}
|
||||
|
||||
generate(){
|
||||
let m = this.meta
|
||||
|
||||
let toc = ''
|
||||
for (let i = 0; i < m.toc.length; ++i){
|
||||
let toc_item = m.toc[i]
|
||||
toc += ` <li><a href="${toc_item.href}">${toc_item.label}</a>`
|
||||
|
||||
let next_depth = 1
|
||||
if (i+1 < m.toc.length){
|
||||
next_depth = m.toc[i+1].depth
|
||||
}
|
||||
let current_dept = toc_item.depth
|
||||
|
||||
if (current_dept == next_depth){
|
||||
toc += ' </li>\n'
|
||||
}
|
||||
else if (current_dept < next_depth){
|
||||
for (; current_dept < next_depth; current_dept++){
|
||||
toc += ' <ol>\n'
|
||||
}
|
||||
}
|
||||
else if (current_dept > next_depth){
|
||||
for (; current_dept > next_depth; current_dept--){
|
||||
toc += ' </li></ol>\n'
|
||||
}
|
||||
toc += ' </li>\n'
|
||||
}
|
||||
}
|
||||
|
||||
return `<?xml version="1.0" encoding="utf-8" standalone="no"?>
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml"
|
||||
xmlns:epub="http://www.idpf.org/2007/ops">
|
||||
<head>
|
||||
<title>${m.metadata.title}</title>
|
||||
</head>
|
||||
<body>
|
||||
<h1>${m.metadata.title}</h1>
|
||||
<nav epub:type="toc" id="toc">
|
||||
<h2>Table Of Content</h2>
|
||||
<ol>
|
||||
${toc}
|
||||
</ol>
|
||||
</nav>
|
||||
</body>
|
||||
</html>
|
||||
`
|
||||
}
|
||||
}
|
||||
|
||||
class EpubMeta{
|
||||
constructor() {
|
||||
this.metadata = {
|
||||
book_id: 'book_id',
|
||||
isbn: null,
|
||||
title: 'title',
|
||||
language: 'en',
|
||||
author: [],
|
||||
publisher: null,
|
||||
cover_image: null,
|
||||
subject: [],
|
||||
description: null
|
||||
}
|
||||
this.manifest = {}
|
||||
this.spine = []
|
||||
this.guide = []
|
||||
this.toc = []
|
||||
this.override = {}
|
||||
|
||||
this.addManifest(this.ncx().filename, this.ncx().mime)
|
||||
this.addManifest(this.nav().filename, this.nav().mime, 'nav')
|
||||
this.manifest[this.nav().filename].property = 'nav' //TODO
|
||||
}
|
||||
|
||||
addBookId(book_id){
|
||||
this.metadata.book_id = escape(book_id)
|
||||
}
|
||||
addTitle(title){
|
||||
this.metadata.title = escape(title)
|
||||
}
|
||||
addAuthor(author){
|
||||
this.metadata.author.push(escape(author))
|
||||
}
|
||||
addPublisher(publisher){
|
||||
this.metadata.publisher = escape(publisher)
|
||||
}
|
||||
addSubject(subject){
|
||||
this.metadata.subject.push(escape(subject))
|
||||
}
|
||||
addLanguage(lang){
|
||||
this.metadata.language = escape(lang)
|
||||
}
|
||||
addDescription(description){
|
||||
this.metadata.description = escape(html2txt(description))
|
||||
}
|
||||
addIsbn(isbn){
|
||||
this.metadata.isbn = escape(isbn)
|
||||
}
|
||||
|
||||
addMetaData(){
|
||||
}
|
||||
|
||||
addManifest(filename, mime){
|
||||
if (mime && mime.startsWith('text/html')){
|
||||
let o = new EpubXhtml(filename)
|
||||
this.override[filename] = o
|
||||
mime = o.mime
|
||||
}
|
||||
let id = 'id_' + filename.replace(/[^a-z0-9]/gi, '_').toLowerCase()
|
||||
this.manifest[filename] =
|
||||
{
|
||||
filename : filename,
|
||||
mime : mime,
|
||||
id : id
|
||||
}
|
||||
}
|
||||
|
||||
addHtmlComponents(filename, title, css){
|
||||
if (filename in this.override){
|
||||
this.override[filename].title = title
|
||||
this.override[filename].css = css
|
||||
}
|
||||
}
|
||||
|
||||
getId(filename){
|
||||
return this.manifest[filename].id
|
||||
}
|
||||
|
||||
addSpine(filename){
|
||||
this.spine.push(this.manifest[filename].id)
|
||||
}
|
||||
|
||||
addCover(filename){
|
||||
this.manifest[filename].property = 'cover-image'
|
||||
}
|
||||
|
||||
addToc(filename, label, depth){
|
||||
this.toc.push({
|
||||
href: filename,
|
||||
label: label,
|
||||
depth: depth
|
||||
})
|
||||
}
|
||||
|
||||
opf(){
|
||||
return new EpubOpf("content.opf", this)
|
||||
}
|
||||
|
||||
ncx(){
|
||||
return new EpubNcx("content.ncx", this)
|
||||
}
|
||||
|
||||
nav(){
|
||||
return new EpubNav("content.xhtml", this)
|
||||
}
|
||||
}
|
||||
|
||||
class EpubWriter{
|
||||
constructor() {
|
||||
this.zip = new JSZip();
|
||||
this.meta = new EpubMeta();
|
||||
this.override = {}
|
||||
this.createEpubStruct();
|
||||
}
|
||||
|
||||
createEpubStruct(){
|
||||
this.zip.file("mimetype", "application/epub+zip", {compression: "STORE"});
|
||||
this.zip.file("META-INF/container.xml",
|
||||
`<?xml version='1.0' encoding='utf-8'?>
|
||||
<container xmlns="urn:oasis:names:tc:opendocument:xmlns:container" version="1.0">
|
||||
<rootfiles>
|
||||
<rootfile media-type="application/oebps-package+xml" full-path="EPUB/content.opf"/>
|
||||
</rootfiles>
|
||||
</container>
|
||||
` );
|
||||
}
|
||||
|
||||
addMetaInfoFile(filename, content){
|
||||
this.zip.file("META-INF/"+filename, content)
|
||||
}
|
||||
|
||||
addFile(filename, content){
|
||||
console.log(`epub ${filename}:`)
|
||||
|
||||
if (filename in this.meta.override){
|
||||
let o = this.meta.override[filename]
|
||||
content = o.convert(content)
|
||||
}
|
||||
|
||||
this.zip.file("EPUB/"+filename, content)
|
||||
}
|
||||
|
||||
generateAsync(){
|
||||
this.addFile(this.meta.ncx().filename, this.meta.ncx().generate())
|
||||
this.addFile(this.meta.nav().filename, this.meta.nav().generate())
|
||||
this.addFile(this.meta.opf().filename, this.meta.opf().generate())
|
||||
return this.zip.generateAsync({
|
||||
type: generatedBufferType,
|
||||
compression: "DEFLATE"})
|
||||
}
|
||||
}
|
||||
|
||||
// module.exports = EpubWriter
|
||||
|
||||
Reference in New Issue
Block a user