-# -*- coding: utf-8 -*-
-#
# This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
-# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+# Copyright © Fundacja Wolne Lektury. See NOTICE for more information.
#
-from __future__ import print_function, unicode_literals
-
-import os
-import os.path
import re
-import subprocess
-import six
from copy import deepcopy
-from mimetypes import guess_type
-
-from ebooklib import epub
from lxml import etree
-from PIL import Image
-from tempfile import mkdtemp, NamedTemporaryFile
-from shutil import rmtree
-
-from librarian import RDFNS, WLNS, DCNS, OutputFile
-from librarian.cover import make_cover
-
-from librarian import functions, get_resource
-
-from librarian.hyphenator import Hyphenator
-
-functions.reg_person_name()
-
-def squeeze_whitespace(s):
- return re.sub(b'\\s+', b' ', s)
+from librarian import WLNS
-def set_hyph_language(source_tree):
- bibl_lng = etree.XPath('//dc:language//text()',
- namespaces={'dc': str(DCNS)})(source_tree)
- short_lng = functions.lang_code_3to2(bibl_lng[0])
- try:
- return Hyphenator(get_resource('res/hyph-dictionaries/hyph_' +
- short_lng + '.dic'))
- except:
- pass
-
-
-def hyphenate_and_fix_conjunctions(source_tree, hyph):
- texts = etree.XPath('/utwor/*[2]//text()')(source_tree)
- for t in texts:
- parent = t.getparent()
- if hyph is not None:
- newt = ''
- wlist = re.compile(r'\w+|[^\w]', re.UNICODE).findall(t)
- for w in wlist:
- newt += hyph.inserted(w, u'\u00AD')
- else:
- newt = t
- newt = re.sub(r'(?<=\s\w)\s+', u'\u00A0', newt)
- if t.is_text:
- parent.text = newt
- elif t.is_tail:
- parent.tail = newt
-
-
-def inner_xml(node):
- """ returns node's text and children as a string
-
- >>> print(inner_xml(etree.fromstring('<a>x<b>y</b>z</a>')))
- x<b>y</b>z
- """
-
- nt = node.text if node.text is not None else ''
- return ''.join(
- [nt] + [etree.tostring(child, encoding='unicode') for child in node]
- )
-
-
-def set_inner_xml(node, text):
- """ sets node's text and children from a string
-
- >>> e = etree.fromstring('<a>b<b>x</b>x</a>')
- >>> set_inner_xml(e, 'x<b>y</b>z')
- >>> print(etree.tostring(e, encoding='unicode'))
- <a>x<b>y</b>z</a>
- """
-
- p = etree.fromstring('<x>%s</x>' % text)
- node.text = p.text
- node[:] = p[:]
-
-
-def node_name(node):
- """ Find out a node's name
-
- >>> print(node_name(etree.fromstring('<a>X<b>Y</b>Z</a>')))
- XYZ
- """
-
- tempnode = deepcopy(node)
-
- for p in ('pe', 'pa', 'pt', 'pr', 'motyw'):
- for e in tempnode.findall('.//%s' % p):
- t = e.tail
- e.clear()
- e.tail = t
- etree.strip_tags(tempnode, '*')
- return tempnode.text
-
-
-def xslt(xml, sheet, **kwargs):
- if isinstance(xml, etree._Element):
- xml = etree.ElementTree(xml)
- with open(sheet) as xsltf:
- transform = etree.XSLT(etree.parse(xsltf))
- params = dict(
- (key, transform.strparam(value))
- for key, value in kwargs.items()
- )
- return transform(xml, **params)
-
-
-def replace_characters(node):
- def replace_chars(text):
- if text is None:
- return None
- return text.replace(u"\ufeff", u"")\
- .replace("---", u"\u2014")\
- .replace("--", u"\u2013")\
- .replace(",,", u"\u201E")\
- .replace('"', u"\u201D")\
- .replace("'", u"\u2019")
- if node.tag in ('uwaga', 'extra'):
- t = node.tail
- node.clear()
- node.tail = t
- node.text = replace_chars(node.text)
- node.tail = replace_chars(node.tail)
- for child in node:
- replace_characters(child)
-
-
-def find_annotations(annotations, source, part_no):
- for child in source:
- if child.tag in ('pe', 'pa', 'pt', 'pr'):
- annotation = deepcopy(child)
- number = str(len(annotations) + 1)
- annotation.set('number', number)
- annotation.set('part', str(part_no))
- annotation.tail = ''
- annotations.append(annotation)
- tail = child.tail
- child.clear()
- child.tail = tail
- child.text = number
- if child.tag not in ('extra', 'uwaga'):
- find_annotations(annotations, child, part_no)
-
-
-class Stanza(object):
+class Stanza:
"""
Converts / verse endings into verse elements in a stanza.
stanzas = tree.findall('.//' + WLNS('strofa'))
for stanza in stanzas:
Stanza(stanza).versify()
-
-
-def used_chars(element):
- """ Lists characters used in an ETree Element """
- chars = set((element.text or '') + (element.tail or ''))
- for child in element:
- chars = chars.union(used_chars(child))
- return chars
-
-
-def chop(main_text):
- """ divide main content of the XML file into chunks """
-
- # prepare a container for each chunk
- part_xml = etree.Element('utwor')
- etree.SubElement(part_xml, 'master')
- main_xml_part = part_xml[0] # master
-
- last_node_part = False
-
- # The below loop are workaround for a problem with epubs
- # in drama ebooks without acts.
- is_scene = False
- is_act = False
- for one_part in main_text:
- name = one_part.tag
- if name == 'naglowek_scena':
- is_scene = True
- elif name == 'naglowek_akt':
- is_act = True
-
- for one_part in main_text:
- name = one_part.tag
- if is_act is False and is_scene is True:
- if name == 'naglowek_czesc':
- yield part_xml
- last_node_part = True
- main_xml_part[:] = [deepcopy(one_part)]
- elif not last_node_part and name == "naglowek_scena":
- yield part_xml
- main_xml_part[:] = [deepcopy(one_part)]
- else:
- main_xml_part.append(deepcopy(one_part))
- last_node_part = False
- else:
- if name == 'naglowek_czesc':
- yield part_xml
- last_node_part = True
- main_xml_part[:] = [deepcopy(one_part)]
- elif (not last_node_part
- and name in (
- "naglowek_rozdzial", "naglowek_akt", "srodtytul"
- )):
- yield part_xml
- main_xml_part[:] = [deepcopy(one_part)]
- else:
- main_xml_part.append(deepcopy(one_part))
- last_node_part = False
- yield part_xml
-
-
-def transform_chunk(chunk_xml, chunk_no, annotations, empty=False,
- _empty_html_static=[]):
- """
- Transforms one chunk, returns a HTML string, a TOC object
- and a set of used characters.
- """
-
- toc = []
- for element in chunk_xml[0]:
- if element.tag == "naglowek_czesc":
- toc.append(
- (
- epub.Link(
- "part%d.xhtml#book-text" % chunk_no,
- node_name(element),
- "part%d-text" % chunk_no
- ),
- []
- )
- )
- elif element.tag in ("naglowek_rozdzial", "naglowek_akt", "srodtytul"):
- toc.append(
- (
- epub.Link(
- "part%d.xhtml" % chunk_no,
- node_name(element),
- "part%d" % chunk_no
- ),
- []
- )
- )
- elif element.tag in ('naglowek_podrozdzial', 'naglowek_scena'):
- if not toc:
- toc.append(
- (
- epub.Link(
- "part%d.xhtml" % chunk_no,
- " ",
- "part%d" % chunk_no
- ),
- []
- )
- )
-
- subnumber = len(toc[-1][1])
- toc[-1][1].append(
- epub.Link(
- "part%d.xhtml#sub%d" % (chunk_no, subnumber),
- node_name(element),
- "part%d-sub%d" % (chunk_no, subnumber)
- )
- )
- element.set('sub', six.text_type(subnumber))
- if empty:
- if not _empty_html_static:
- with open(get_resource('epub/emptyChunk.xhtml')) as f:
- _empty_html_static.append(f.read())
- chars = set()
- output_html = _empty_html_static[0]
- else:
- find_annotations(annotations, chunk_xml, chunk_no)
- replace_by_verse(chunk_xml)
- html_tree = xslt(chunk_xml, get_resource('epub/xsltScheme.xsl'))
- chars = used_chars(html_tree.getroot())
- output_html = etree.tostring(
- html_tree, pretty_print=True, xml_declaration=True,
- encoding="utf-8",
- doctype='<!DOCTYPE html>'
- )
- return output_html, toc, chars
-
-
-def remove_empty_lists_from_toc(toc):
- for i, e in enumerate(toc):
- if isinstance(e, tuple):
- if e[1]:
- remove_empty_lists_from_toc(e[1])
- else:
- toc[i] = e[0]
-
-
-def transform(wldoc, verbose=False, style=None,
- sample=None, cover=None, flags=None, hyphenate=False,
- base_url='file://./', output_type='epub'):
- """ produces a EPUB file
-
- sample=n: generate sample e-book (with at least n paragraphs)
- cover: a cover.Cover factory or True for default
- flags: less-advertising, without-fonts, working-copy
- """
-
- def transform_file(wldoc, chunk_counter=1, first=True, sample=None):
- """ processes one input file and proceeds to its children """
-
- replace_characters(wldoc.edoc.getroot())
-
- hyphenator = set_hyph_language(
- wldoc.edoc.getroot()
- ) if hyphenate else None
- hyphenate_and_fix_conjunctions(wldoc.edoc.getroot(), hyphenator)
-
- # every input file will have a TOC entry,
- # pointing to starting chunk
- toc = [
- (
- epub.Link(
- "part%d.xhtml" % chunk_counter,
- wldoc.book_info.title,
- "path%d-start" % chunk_counter
- ),
- []
- )
- ]
- chars = set()
- if first:
- # write book title page
- html_tree = xslt(wldoc.edoc, get_resource('epub/xsltTitle.xsl'),
- outputtype=output_type)
- chars = used_chars(html_tree.getroot())
- html_string = etree.tostring(
- html_tree, pretty_print=True, xml_declaration=True,
- encoding="utf-8",
- doctype='<!DOCTYPE html>'
- )
- item = epub.EpubItem(
- uid="titlePage",
- file_name="title.xhtml",
- media_type="application/xhtml+xml",
- content=squeeze_whitespace(html_string)
- )
- spine.append(item)
- output.add_item(item)
- # add a title page TOC entry
- toc[-1][1].append(
- epub.Link(
- "title.xhtml",
- "Strona tytułowa",
- "title",
- )
- )
-
- item = epub.EpubNav()
- toc[-1][1].append(
- epub.Link(
- "nav.xhtml",
- "Spis treści",
- "nav"
- )
- )
- output.add_item(item)
- spine.append(item)
-
- elif wldoc.book_info.parts:
- # write title page for every parent
- if sample is not None and sample <= 0:
- chars = set()
- html_string = open(
- get_resource('epub/emptyChunk.xhtml')).read()
- else:
- html_tree = xslt(wldoc.edoc,
- get_resource('epub/xsltChunkTitle.xsl'))
- chars = used_chars(html_tree.getroot())
- html_string = etree.tostring(
- html_tree, pretty_print=True, xml_declaration=True,
- encoding="utf-8",
- doctype='<!DOCTYPE html>'
- )
- item = epub.EpubItem(
- uid="part%d" % chunk_counter,
- file_name="part%d.xhtml" % chunk_counter,
- media_type="application/xhtml+xml",
- content=squeeze_whitespace(html_string)
- )
- output.add_item(item)
- spine.append(item)
-
- chunk_counter += 1
-
- if len(wldoc.edoc.getroot()) > 1:
- # rdf before style master
- main_text = wldoc.edoc.getroot()[1]
- else:
- # rdf in style master
- main_text = wldoc.edoc.getroot()[0]
- if main_text.tag == RDFNS('RDF'):
- main_text = None
-
- if main_text is not None:
- for chunk_xml in chop(main_text):
- empty = False
- if sample is not None:
- if sample <= 0:
- empty = True
- else:
- sample -= len(chunk_xml.xpath(
- '//strofa|//akap|//akap_cd|//akap_dialog'
- ))
- chunk_html, chunk_toc, chunk_chars = transform_chunk(
- chunk_xml, chunk_counter, annotations, empty)
-
- toc[-1][1].extend(chunk_toc)
- chars = chars.union(chunk_chars)
- item = epub.EpubItem(
- uid="part%d" % chunk_counter,
- file_name="part%d.xhtml" % chunk_counter,
- media_type="application/xhtml+xml",
- content=squeeze_whitespace(chunk_html)
- )
- output.add_item(item)
- spine.append(item)
- chunk_counter += 1
-
- for child in wldoc.parts():
- child_toc, chunk_counter, chunk_chars, sample = transform_file(
- child, chunk_counter, first=False, sample=sample)
- toc[-1][1].extend(child_toc)
- chars = chars.union(chunk_chars)
-
- return toc, chunk_counter, chars, sample
-
- document = deepcopy(wldoc)
- del wldoc
-
- if flags:
- for flag in flags:
- document.edoc.getroot().set(flag, 'yes')
-
- document.clean_ed_note()
- document.clean_ed_note('abstrakt')
-
- # add editors info
- editors = document.editors()
- if editors:
- document.edoc.getroot().set('editors', u', '.join(sorted(
- editor.readable() for editor in editors)))
- if document.book_info.funders:
- document.edoc.getroot().set('funders', u', '.join(
- document.book_info.funders))
- if document.book_info.thanks:
- document.edoc.getroot().set('thanks', document.book_info.thanks)
-
- output = epub.EpubBook()
- output.set_identifier(six.text_type(document.book_info.url))
- output.set_language(functions.lang_code_3to2(document.book_info.language))
- output.set_title(document.book_info.title)
- for author in document.book_info.authors:
- output.add_author(
- author.readable(),
- file_as=six.text_type(author)
- )
- for translator in document.book_info.translators:
- output.add_author(
- translator.readable(),
- file_as=six.text_type(translator),
- role='translator'
- )
- for publisher in document.book_info.publisher:
- output.add_metadata("DC", "publisher", publisher)
- output.add_metadata("DC", "date", document.book_info.created_at)
-
- output.guide.append({
- "type": "text",
- "title": "Początek",
- "href": "part1.xhtml"
- })
-
- output.add_item(epub.EpubNcx())
-
- spine = output.spine
-
- functions.reg_mathml_epub(output)
-
- # FIXME
- for i, ilustr in enumerate(document.edoc.findall('//ilustr')):
- url = six.moves.urllib.parse.urljoin(
- base_url,
- ilustr.get('src')
- )
- with six.moves.urllib.request.urlopen(url) as imgfile:
- img = Image.open(imgfile)
-
- th_format, ext, media_type = {
- 'GIF': ('GIF', 'gif', 'image/gif'),
- 'PNG': ('PNG', 'png', 'image/png'),
- }.get(img.format, ('JPEG', 'jpg', 'image/jpeg'))
-
- width = 1200
- if img.size[0] < width:
- th = img
- else:
- th = img.resize((width, round(width * img.size[1] / img.size[0])))
-
- buffer = six.BytesIO()
- th.save(buffer, format=th_format)
-
- file_name = 'image%d.%s' % (i, ext)
- ilustr.set('src', file_name)
- output.add_item(
- epub.EpubItem(
- uid='image%s' % i,
- file_name=file_name,
- media_type=media_type,
- content=buffer.getvalue()
- )
- )
-
- # write static elements
-
- with open(get_resource('res/wl-logo-small.png'), 'rb') as f:
- output.add_item(
- epub.EpubItem(
- uid="logo_wolnelektury.png",
- file_name="logo_wolnelektury.png",
- media_type="image/png",
- content=f.read()
- )
- )
- with open(get_resource('res/jedenprocent.png'), 'rb') as f:
- output.add_item(
- epub.EpubItem(
- uid="jedenprocent",
- file_name="jedenprocent.png",
- media_type="image/png",
- content=f.read()
- )
- )
-
- if not style:
- style = get_resource('epub/style.css')
- with open(style, 'rb') as f:
- output.add_item(
- epub.EpubItem(
- uid="style",
- file_name="style.css",
- media_type="text/css",
- content=f.read()
- )
- )
-
- if cover:
- if cover is True:
- cover = make_cover
-
- cover_file = six.BytesIO()
- bound_cover = cover(document.book_info)
- bound_cover.save(cover_file)
- cover_name = 'cover.%s' % bound_cover.ext()
-
- output.set_cover(
- file_name=cover_name,
- content=cover_file.getvalue(),
- )
- spine.append('cover')
- output.guide.append({
- "type": "cover",
- "href": "cover.xhtml",
- "title": "Okładka",
- })
-
- del cover_file
-
- if bound_cover.uses_dc_cover:
- if document.book_info.cover_by:
- document.edoc.getroot().set('data-cover-by',
- document.book_info.cover_by)
- if document.book_info.cover_source:
- document.edoc.getroot().set('data-cover-source',
- document.book_info.cover_source)
-
- annotations = etree.Element('annotations')
-
- toc, chunk_counter, chars, sample = transform_file(document, sample=sample)
- output.toc = toc[0][1]
-
- if len(toc) < 2:
- output.toc.append(
- epub.Link(
- "part1.xhtml",
- "Początek utworu",
- "part1"
- )
- )
-
- # Last modifications in container files and EPUB creation
- if len(annotations) > 0:
- output.toc.append(
- epub.Link(
- "annotations.xhtml",
- "Przypisy",
- "annotations"
- )
- )
- replace_by_verse(annotations)
- html_tree = xslt(annotations, get_resource('epub/xsltAnnotations.xsl'))
- chars = chars.union(used_chars(html_tree.getroot()))
-
- item = epub.EpubItem(
- uid="annotations",
- file_name="annotations.xhtml",
- media_type="application/xhtml+xml",
- content=etree.tostring(
- html_tree, pretty_print=True, xml_declaration=True,
- encoding="utf-8",
- doctype='<!DOCTYPE html>'
- )
- )
- output.add_item(item)
- spine.append(item)
-
- output.toc.append(
- epub.Link(
- "support.xhtml",
- "Wesprzyj Wolne Lektury",
- "support"
- )
- )
- with open(get_resource('epub/support.xhtml'), 'rb') as f:
- html_string = f.read()
- chars.update(used_chars(etree.fromstring(html_string)))
- item = epub.EpubItem(
- uid="support",
- file_name="support.xhtml",
- media_type="application/xhtml+xml",
- content=squeeze_whitespace(html_string)
- )
- output.add_item(item)
- spine.append(item)
-
- output.toc.append(
- epub.Link(
- "last.xhtml",
- "Strona redakcyjna",
- "last"
- )
- )
- html_tree = xslt(document.edoc, get_resource('epub/xsltLast.xsl'),
- outputtype=output_type)
- chars.update(used_chars(html_tree.getroot()))
- item = epub.EpubItem(
- uid="last",
- file_name="last.xhtml",
- media_type="application/xhtml+xml",
- content=squeeze_whitespace(etree.tostring(
- html_tree, pretty_print=True, xml_declaration=True,
- encoding="utf-8",
- doctype='<!DOCTYPE html>'
- ))
- )
- output.add_item(item)
- spine.append(item)
-
- if not flags or 'without-fonts' not in flags:
- # strip fonts
- tmpdir = mkdtemp('-librarian-epub')
- try:
- cwd = os.getcwd()
- except OSError:
- cwd = None
-
- os.chdir(os.path.join(os.path.dirname(os.path.realpath(__file__)),
- 'font-optimizer'))
- for fname in ('DejaVuSerif.ttf', 'DejaVuSerif-Bold.ttf',
- 'DejaVuSerif-Italic.ttf', 'DejaVuSerif-BoldItalic.ttf'):
- optimizer_call = ['perl', 'subset.pl', '--chars',
- ''.join(chars).encode('utf-8'),
- get_resource('fonts/' + fname),
- os.path.join(tmpdir, fname)]
- env = {"PERL_USE_UNSAFE_INC": "1"}
- if verbose:
- print("Running font-optimizer")
- subprocess.check_call(optimizer_call, env=env)
- else:
- dev_null = open(os.devnull, 'w')
- subprocess.check_call(optimizer_call, stdout=dev_null,
- stderr=dev_null, env=env)
- with open(os.path.join(tmpdir, fname), 'rb') as f:
- output.add_item(
- epub.EpubItem(
- uid=fname,
- file_name=fname,
- media_type="font/ttf",
- content=f.read()
- )
- )
- rmtree(tmpdir)
- if cwd is not None:
- os.chdir(cwd)
-
- remove_empty_lists_from_toc(output.toc)
-
- output_file = NamedTemporaryFile(prefix='librarian', suffix='.epub',
- delete=False)
- output_file.close()
- epub.write_epub(output_file.name, output, {'epub3_landmark': False})
- return OutputFile.from_filename(output_file.name)
fnp / librarian.git / blobdiff