mirror of
https://github.com/danbulant/Mangades
synced 2026-06-17 05:11:14 +00:00
refactor epub generation
This commit is contained in:
Daniel Bulant
parent
3dd59cda2e
commit
b1d1b36fbb
2 changed files with 140 additions and 113 deletions
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@ -1,6 +1,7 @@
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<script>
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import { url } from "@roxi/routify/runtime/helpers";
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import { Zip, ZipPassThrough } from "fflate";
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import { prepareEpub } from "../../util/generateEpub";
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// import * as streamSaver from "streamsaver";
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import request from "../../util/request";
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@ -43,123 +44,19 @@
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}
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text = "Found " + URLs.length + " pages";
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const file = streamSaver.createWriteStream(`${manga.title.en} ${chapter.data.attributes.chapter}.epub`, {
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writableStrategy: undefined, // (optional)
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readableStrategy: undefined, // (optional)
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})
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const writer = file.getWriter();
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const zip = new Zip();
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zip.ondata = (error, data, final) => {
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if(error) {
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console.error(error);
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text = "Error: " + error.message;
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state = "error";
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}
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if(data) {
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writer.write(data);
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}
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if(final) {
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writer.close();
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}
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};
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const mimetype = new ZipPassThrough("mimetype");
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zip.add(mimetype);
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mimetype.push(enc.encode("application/epub+zip"), true);
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});
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const container = new ZipPassThrough("META-INF/container.xml");
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zip.add(container);
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container.push(enc.encode(`<?xml version="1.0" encoding="UTF-8" ?>
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<container version="1.0" xmlns="urn:oasis:names:tc:opendocument:xmlns:container">
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<rootfiles>
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<rootfile full-path="OEBPS/content.opf" media-type="application/oebps-package+xml"/>
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</rootfiles>
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</container>`), true);
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const opf = new ZipPassThrough("OEBPS/content.opf");
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zip.add(opf);
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opf.push(enc.encode(`<?xml version="1.0"?>
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<package version="3.0" xmlns="http://www.idpf.org/2007/opf" unique-identifier="bookid">
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<metadata xmlns:opf="http://www.idpf.org/2007/opf" xmlns:dc="http://purl.org/dc/elements/1.1/"
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xmlns:dcterms="http://purl.org/dc/terms/">
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<dc:title>${manga.title.en} ${chapter.data.attributes.chapter}</dc:title>
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<dc:language>en</dc:language>
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<dc:creator>Unknown</dc:creator>
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<dc:identifier id="bookid">https://manga.danbulant.eu/${mangaId}/${chapter.data.id}</dc:identifier>
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<dc:type>Image</dc:type>
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<meta property="dcterms:modified">${chapter.data.attributes.updatedAt.toString().split("+")[0]}Z</meta>
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<meta property="rendition:layout">pre-paginated</meta>
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<meta property="rendition:orientation">portrait</meta>
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<meta property="rendition:spread">landscape</meta>
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</metadata>
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<manifest>
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<item id="fallback" href="fallback.xhtml" media-type="application/xhtml+xml" />
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${hashes.map((t, i) => ` <item id="i${i}" href="${t}" fallback="fallback" media-type="image/${t.substr(t.lastIndexOf(".") + 1) === "jpg" ? "jpeg" : "png"}"/>`).join("\n")}
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${hashes.map((t, i) => ` <item id="p${i}" href="${i}.xhtml" media-type="application/xhtml+xml" />`).join("\n")}
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<item id="ncxtoc" href="toc.ncx" media-type="application/x-dtbncx+xml"/>
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</manifest>
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<spine toc="ncxtoc">
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${hashes.map((t, i) => ` <itemref idref="p${i}" linear="yes" />`).join("\n")}
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<itemref idref="fallback" linear="no" />
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</spine>
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</package>`), true);
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const ncx = new ZipPassThrough("OEBPS/toc.ncx");
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zip.add(ncx);
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ncx.push(enc.encode(`<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE ncx PUBLIC "-//NISO//DTD ncx 2005-1//EN" "http://www.daisy.org/z3986/2005/ncx-2005-1.dtd">
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<ncx xmlns:ncx="http://www.daisy.org/z3986/2005/ncx/" version="2005-1">
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<head>
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<meta name="dtb:depth" content="1"/>
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<meta name="dtb:totalPageCount" content="0"/>
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<meta name="dtb:maxPageNumber" content="0"/>
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</head>
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<docTitle>
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<text>${manga.title.en} ${chapter.data.attributes.chapter}</text>
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</docTitle>
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<docAuthor>
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<text>Unknown</text>
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</docAuthor>
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<navMap>
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${hashes.map((t, i) => `
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<navPoint id="p${i}" playOrder="${i + 1}">
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<navLabel>
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<text>${manga.title.en} ${chapter.data.attributes.chapter} ${i}</text>
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</navLabel>
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<content src="${i}.xhtml"/>
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</navPoint>
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`).join("\n")}
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</navMap>
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</ncx>`), true);
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const fallback = new ZipPassThrough("OEBPS/fallback.xhtml");
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zip.add(fallback);
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fallback.push(enc.encode(`<?xml version="1.0" encoding="UTF-8"?>
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<html xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops">
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<head>
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<title>${manga.title.en} ${chapter.data.attributes.chapter}</title>
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</head>
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<body>
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<h2>This book cannot be opened on this device or using this program</h2>
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<p>We're sorry</p>
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<nav epub:type="toc">
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<h1>Chapter list</h1>
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<ol>
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<li>
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<a href="p0.xhtml">Chapter ${chapter.data.attributes.chapter}</a>
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</li>
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</ol>
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</nav>
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</body>
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</html>`), true);
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const zip = await prepareEpub({
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title: `https://manga.danbulant.eu/${mangaId}/${chapter.data.id}`,
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file,
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chapter: chapter.data.attributes.chapter,
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links: hashes,
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updatedAt: chapter.data.attributes.updatedAt
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});
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for(var i = 0; i < URLs.length; i++) {
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text = `Saving page ${i + 1} of ${URLs.length}`;
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130
src/util/generateEpub.js
Normal file
130
src/util/generateEpub.js
Normal file
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@ -0,0 +1,130 @@
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import { Zip, ZipPassThrough } from "fflate";
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const enc = new TextEncoder();
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/**
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* @param {object} opts
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* @param {string[]} opts.links
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* @param {WritableStream} opts.file
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* @param {number} opts.chapter
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* @param {string|Date} opts.updatedAt
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*/
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export async function prepareEpub(opts) {
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const writer = opts.file.getWriter();
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const zip = new Zip();
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zip.ondata = (error, data, final) => {
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if(error) {
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console.error(error);
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text = "Error: " + error.message;
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state = "error";
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}
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if(data) {
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writer.write(data);
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}
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if(final) {
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writer.close();
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}
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};
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const hashes = opts.links;
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const mimetype = new ZipPassThrough("mimetype");
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zip.add(mimetype);
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mimetype.push(enc.encode("application/epub+zip"), true);
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const container = new ZipPassThrough("META-INF/container.xml");
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zip.add(container);
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container.push(enc.encode(`<?xml version="1.0" encoding="UTF-8" ?>
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<container version="1.0" xmlns="urn:oasis:names:tc:opendocument:xmlns:container">
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<rootfiles>
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<rootfile full-path="OEBPS/content.opf" media-type="application/oebps-package+xml"/>
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</rootfiles>
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</container>`), true);
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const opf = new ZipPassThrough("OEBPS/content.opf");
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zip.add(opf);
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opf.push(enc.encode(`<?xml version="1.0"?>
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<package version="3.0" xmlns="http://www.idpf.org/2007/opf" unique-identifier="bookid">
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<metadata xmlns:opf="http://www.idpf.org/2007/opf" xmlns:dc="http://purl.org/dc/elements/1.1/"
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xmlns:dcterms="http://purl.org/dc/terms/">
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<dc:title>${opts.title}</dc:title>
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<dc:language>en</dc:language>
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<dc:creator>Unknown</dc:creator>
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<dc:identifier id="bookid"></dc:identifier>
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<dc:type>Image</dc:type>
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<meta property="dcterms:modified">${opts.updatedAt.toString().split("+")[0]}Z</meta>
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<meta property="rendition:layout">pre-paginated</meta>
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<meta property="rendition:orientation">portrait</meta>
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<meta property="rendition:spread">landscape</meta>
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</metadata>
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<manifest>
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<item id="fallback" href="fallback.xhtml" media-type="application/xhtml+xml" />
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${hashes.map((t, i) => ` <item id="i${i}" href="${t}" fallback="fallback" media-type="image/${t.substr(t.lastIndexOf(".") + 1) === "jpg" ? "jpeg" : "png"}"/>`).join("\n")}
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${hashes.map((t, i) => ` <item id="p${i}" href="${i}.xhtml" media-type="application/xhtml+xml" />`).join("\n")}
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<item id="ncxtoc" href="toc.ncx" media-type="application/x-dtbncx+xml"/>
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</manifest>
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<spine toc="ncxtoc">
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${hashes.map((t, i) => ` <itemref idref="p${i}" linear="yes" />`).join("\n")}
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<itemref idref="fallback" linear="no" />
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</spine>
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</package>`), true);
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const ncx = new ZipPassThrough("OEBPS/toc.ncx");
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zip.add(ncx);
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ncx.push(enc.encode(`<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE ncx PUBLIC "-//NISO//DTD ncx 2005-1//EN" "http://www.daisy.org/z3986/2005/ncx-2005-1.dtd">
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<ncx xmlns:ncx="http://www.daisy.org/z3986/2005/ncx/" version="2005-1">
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<head>
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<meta name="dtb:depth" content="1"/>
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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>${opts.title}</text>
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</docTitle>
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<docAuthor>
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<text>Unknown</text>
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</docAuthor>
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<navMap>
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${hashes.map((t, i) => `
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<navPoint id="p${i}" playOrder="${i + 1}">
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<navLabel>
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<text>${opts.title} ${i}</text>
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</navLabel>
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<content src="${i}.xhtml"/>
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</navPoint>
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`).join("\n")}
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</navMap>
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</ncx>`), true);
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const fallback = new ZipPassThrough("OEBPS/fallback.xhtml");
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zip.add(fallback);
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fallback.push(enc.encode(`<?xml version="1.0" encoding="UTF-8"?>
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<html xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops">
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<head>
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<title>${opts.title}</title>
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</head>
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<body>
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<h2>This book cannot be opened on this device or using this program</h2>
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<p>We're sorry</p>
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<nav epub:type="toc">
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<h1>Chapter list</h1>
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<ol>
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<li>
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<a href="p0.xhtml">Chapter ${opts.chapter}</a>
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</li>
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</ol>
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</nav>
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</body>
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</html>`), true);
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return zip;
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}
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