X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/9e4ab00dca15599a016b0621cdaae623bc8a723e..d1037d617d8cd2cafc60e67ac0272f86d2e24dfa:/librarian/formats/epub/__init__.py diff --git a/librarian/formats/epub/__init__.py b/librarian/formats/epub/__init__.py index b7cf539..80f9d5c 100644 --- a/librarian/formats/epub/__init__.py +++ b/librarian/formats/epub/__init__.py @@ -4,14 +4,19 @@ # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. # import os +import re +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 +26,7 @@ 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 +35,32 @@ 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 +83,9 @@ 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 +110,19 @@ 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 +138,9 @@ 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 +154,31 @@ 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)) @@ -171,6 +230,24 @@ class EpubRenderer(TreeRenderer): yield wrapper +class NaturalText(EpubRenderer): + def render_text(self, text, ctx): + root, inner = self.text_container() + chunks = re.split('(?<=\s\w) ', text) + inner.text = chunks[0] + for chunk in chunks[1:]: + x = etree.Entity("nbsp") + x.tail = chunk + inner.append(x) + return root + + +class Silent(EpubRenderer): + def render_text(self, text, ctx): + root, inner = self.text_container() + return root + + class Footnotes(object): def __init__(self): self.counter = 0 @@ -232,7 +309,7 @@ class TOC(object): # Renderers -class AsideR(EpubRenderer): +class AsideR(NaturalText): def render(self, element, ctx): outputs = list(super(AsideR, self).render(element, ctx)) anchor = ctx.footnotes.append(outputs) @@ -241,8 +318,10 @@ class AsideR(EpubRenderer): yield wrapper EpubFormat.renderers.register(core.Aside, None, AsideR('div')) +EpubFormat.renderers.register(core.Aside, 'comment', Silent()) + -class DivR(EpubRenderer): +class DivR(NaturalText): def container(self, ctx): root, inner = super(DivR, self).container(ctx) if getattr(ctx, 'inline', False): @@ -250,15 +329,36 @@ class DivR(EpubRenderer): inner.set('style', 'display: block;') return root, inner EpubFormat.renderers.register(core.Div, None, DivR('div')) +EpubFormat.renderers.register(core.Div, 'p', NaturalText('p')) + +EpubFormat.renderers.register(core.Div, 'list', NaturalText('ul')) +EpubFormat.renderers.register(core.Div, 'list.enum', NaturalText('ol')) +EpubFormat.renderers.register(core.Div, 'item', NaturalText('li')) + + +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): +class HeaderR(NaturalText): def subcontext(self, element, ctx): return Context(ctx, inline=True) EpubFormat.renderers.register(core.Header, None, HeaderR('h1')) -class SectionR(EpubRenderer): +class SectionR(NaturalText): epub_separate = True def render(self, element, ctx): @@ -270,6 +370,21 @@ class SectionR(EpubRenderer): EpubFormat.renderers.register(core.Section, None, SectionR()) -class SpanR(EpubRenderer): +class SpanR(NaturalText): pass EpubFormat.renderers.register(core.Span, None, SpanR('span')) +EpubFormat.renderers.register(core.Span, 'cite', SpanR('i')) +EpubFormat.renderers.register(core.Span, 'emp', SpanR('b')) +EpubFormat.renderers.register(core.Span, 'emph', SpanR('i')) + + +class SpanLink(EpubRenderer): + def render(self, element, ctx): + parts = super(SpanLink, self).render(element, ctx) + for part in parts: + src = element.attrib.get('href', '') + if src.startswith('file://'): + src = ctx.files_path + src[7:] + part[0].attrib['href'] = src + yield part +EpubFormat.renderers.register(core.Span, 'link', SpanLink('a'))