X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/9e4ab00dca15599a016b0621cdaae623bc8a723e..dcf52453a888b12b3fd562df71e30d95af847a29:/librarian/formats/epub/__init__.py diff --git a/librarian/formats/epub/__init__.py b/librarian/formats/epub/__init__.py index b7cf539..708b063 100644 --- a/librarian/formats/epub/__init__.py +++ b/librarian/formats/epub/__init__.py @@ -4,14 +4,18 @@ # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. # import os +import urllib from copy import deepcopy +from mimetypes import guess_type from tempfile import NamedTemporaryFile import zipfile +from urllib2 import urlopen + from lxml import etree -from librarian import OPFNS, NCXNS, XHTMLNS +from librarian import OPFNS, NCXNS, XHTMLNS, DCNS from librarian import core from librarian.formats import Format -from librarian.formats.cover.wolnelektury import WLCover +from librarian.formats.cover.evens import EvensCover from librarian.output import OutputFile from librarian.renderers import Register, TreeRenderer, UnknownElement from librarian.utils import Context, get_resource, extend_element @@ -21,7 +25,7 @@ class EpubFormat(Format): format_name = 'EPUB' format_ext = 'epub' - cover = WLCover + cover = EvensCover renderers = Register() def __init__(self, doc, cover=None, with_fonts=True): @@ -30,12 +34,32 @@ class EpubFormat(Format): if cover is not None: self.cover = cover - def build(self): + def dc(self, tag): + return self.doc.meta.get_one(DCNS(tag)) + + def build(self, ctx=None): + + def add_file(url, file_id): + filename = url.rsplit('/', 1)[1] + if url.startswith('file://'): + url = ctx.files_path + urllib.quote(url[7:]) + if url.startswith('/'): + url = 'http://milpeer.eu' + url + file_content = urlopen(url).read() + zip.writestr(os.path.join('OPS', filename), file_content) + manifest.append(etree.fromstring( + '' % (file_id, filename, guess_type(url)[0]))) + opf = etree.parse(get_resource('formats/epub/res/content.opf')) manifest = opf.find(OPFNS('manifest')) guide = opf.find(OPFNS('guide')) spine = opf.find(OPFNS('spine')) + author = ", ". join(self.doc.meta.get(DCNS('creator')) or []) + title = self.doc.meta.title() + opf.find('.//' + DCNS('creator')).text = author + opf.find('.//' + DCNS('title')).text = title + output_file = NamedTemporaryFile(prefix='librarian', suffix='.epub', delete=False) zip = zipfile.ZipFile(output_file, 'w', zipfile.ZIP_DEFLATED) @@ -58,7 +82,9 @@ class EpubFormat(Format): # nav_map = toc_file[-1] if self.cover is not None: + # cover_image = self.doc.meta.get(DCNS('relation.coverimage.url'))[0] cover = self.cover(self.doc) + cover.set_images(ctx) cover_output = cover.build() cover_name = 'cover.%s' % cover.format_ext zip.writestr(os.path.join('OPS', cover_name), cover_output.get_string()) @@ -83,15 +109,19 @@ class EpubFormat(Format): opf.getroot()[0].append(etree.fromstring('')) guide.append(etree.fromstring('')) - ctx = Context(format=self) + if not ctx: + ctx = Context(format=self) + else: + ctx.format = self ctx.toc = TOC() ctx.toc_level = 0 ctx.footnotes = Footnotes() + ctx.images = [] ctx.part_no = 0 wrap_tmpl = etree.parse(get_resource('formats/epub/res/chapter.html')) for e in self.render(self.doc.edoc.getroot(), ctx): - if not len(e) and not e.text.strip(): + if not len(e) and not (e.text and e.text.strip()): continue wrap = deepcopy(wrap_tmpl) extend_element(wrap.find('//*[@id="book-text"]'), e) @@ -107,6 +137,9 @@ class EpubFormat(Format): })) zip.writestr('OPS/%s.html' % partstr, etree.tostring(wrap, method='html')) + for i, url in enumerate(ctx.images): + add_file(url, 'image%s' % i) + if len(ctx.footnotes.output): ctx.toc.add("Przypisy", "footnotes.html") manifest.append(etree.Element( @@ -120,6 +153,31 @@ class EpubFormat(Format): zip.writestr('OPS/footnotes.html', etree.tostring( wrap, method="html", pretty_print=True)) + footer_text = [ + 'Information about the resource', + 'Publisher: %s' % self.dc('publisher'), + 'Rights: %s' % self.dc('rights'), + 'Intended audience: %s' % self.dc('audience'), + self.dc('description'), + 'Resource prepared using MIL/PEER editing platform.', + 'Source available at %s' % ctx.source_url, + ] + footer_wrap = deepcopy(wrap_tmpl) + footer_body = footer_wrap.find('//*[@id="book-text"]') + for line in footer_text: + footer_line = etree.Element('p') + footer_line.text = line + footer_body.append(footer_line) + manifest.append(manifest.makeelement(OPFNS('item'), attrib={ + 'id': 'footer', + 'href': "footer.html", + 'media-type': 'application/xhtml+xml', + })) + spine.append(spine.makeelement(OPFNS('itemref'), attrib={ + 'idref': 'footer', + })) + zip.writestr('OPS/footer.html', etree.tostring(footer_wrap, method='html')) + zip.writestr('OPS/content.opf', etree.tostring(opf, pretty_print=True)) ctx.toc.render(toc_file[-1]) zip.writestr('OPS/toc.ncx', etree.tostring(toc_file, pretty_print=True)) @@ -252,6 +310,22 @@ class DivR(EpubRenderer): EpubFormat.renderers.register(core.Div, None, DivR('div')) +class DivImageR(EpubRenderer): + def render(self, element, ctx): + src = element.attrib.get('src', '') + ctx.images.append(src) + src = src.rsplit('/', 1)[1] + return super(DivImageR, self).render(element, Context(ctx, src=src)) + + def container(self, ctx): + root, inner = super(DivImageR, self).container(ctx) + src = getattr(ctx, 'src', '') + inner.set('src', src) + # inner.set('style', 'display: block; width: 60%; margin: 3em auto') + return root, inner +EpubFormat.renderers.register(core.Div, 'img', DivImageR('img')) + + class HeaderR(EpubRenderer): def subcontext(self, element, ctx): return Context(ctx, inline=True)