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ebooklib/__init__.py
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# This file is part of EbookLib.
# Copyright (c) 2013 Aleksandar Erkalovic <aerkalov@gmail.com>
#
# EbookLib is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# EbookLib is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with EbookLib. If not, see <http://www.gnu.org/licenses/>.
# Version of ebook library
VERSION = (0, 16, 0)
# LIST OF POSSIBLE ITEMS
ITEM_UNKNOWN = 0
ITEM_IMAGE = 1
ITEM_STYLE = 2
ITEM_SCRIPT = 3
ITEM_NAVIGATION = 4
ITEM_VECTOR = 5
ITEM_FONT = 6
ITEM_VIDEO = 7
ITEM_AUDIO = 8
ITEM_DOCUMENT = 9
# EXTENSION MAPPER
EXTENSIONS = {ITEM_IMAGE: ['.jpg', '.jpeg', '.gif', '.tiff', '.tif', '.png'],
ITEM_STYLE: ['.css'],
ITEM_VECTOR: ['.svg'],
ITEM_FONT: ['.otf', '.woff', '.ttf'],
ITEM_SCRIPT: ['.js'],
ITEM_NAVIGATION: ['.ncx'],
ITEM_VIDEO: ['.mov', '.mp4', '.avi'],
ITEM_AUDIO: ['.mp3', '.ogg']
}

1595
ebooklib/epub.py
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0
ebooklib/plugins/__init__.py
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49
ebooklib/plugins/base.py
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@@ -1,49 +0,0 @@
# This file is part of EbookLib.
# Copyright (c) 2013 Aleksandar Erkalovic <aerkalov@gmail.com>
#
# EbookLib is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# EbookLib is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with EbookLib. If not, see <http://www.gnu.org/licenses/>.
class BasePlugin(object):
def before_write(self, book):
"Processing before save"
return True
def after_write(self, book):
"Processing after save"
return True
def before_read(self, book):
"Processing before save"
return True
def after_read(self, book):
"Processing after save"
return True
def item_after_read(self, book, item):
"Process general item after read."
return True
def item_before_write(self, book, item):
"Process general item before write."
return True
def html_after_read(self, book, chapter):
"Processing HTML before read."
return True
def html_before_write(self, book, chapter):
"Processing HTML before save."
return True

119
ebooklib/plugins/booktype.py
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@@ -1,119 +0,0 @@
# This file is part of EbookLib.
# Copyright (c) 2013 Aleksandar Erkalovic <aerkalov@gmail.com>
#
# EbookLib is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# EbookLib is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with EbookLib. If not, see <http://www.gnu.org/licenses/>.
from ebooklib.plugins.base import BasePlugin
from ebooklib.utils import parse_html_string
class BooktypeLinks(BasePlugin):
NAME = 'Booktype Links'
def __init__(self, booktype_book):
self.booktype_book = booktype_book
def html_before_write(self, book, chapter):
from lxml import etree
try:
from urlparse import urlparse, urljoin
except ImportError:
from urllib.parse import urlparse, urljoin
try:
tree = parse_html_string(chapter.content)
except:
return
root = tree.getroottree()
if len(root.find('body')) != 0:
body = tree.find('body')
# should also be aware to handle
# ../chapter/
# ../chapter/#reference
# ../chapter#reference
for _link in body.xpath('//a'):
# This is just temporary for the footnotes
if _link.get('href', '').find('InsertNoteID') != -1:
_ln = _link.get('href', '')
i = _ln.find('#')
_link.set('href', _ln[i:]);
continue
_u = urlparse(_link.get('href', ''))
# Let us care only for internal links at the moment
if _u.scheme == '':
if _u.path != '':
_link.set('href', '%s.xhtml' % _u.path)
if _u.fragment != '':
_link.set('href', urljoin(_link.get('href'), '#%s' % _u.fragment))
if _link.get('name') != None:
_link.set('id', _link.get('name'))
etree.strip_attributes(_link, 'name')
chapter.content = etree.tostring(tree, pretty_print=True, encoding='utf-8')
class BooktypeFootnotes(BasePlugin):
NAME = 'Booktype Footnotes'
def __init__(self, booktype_book):
self.booktype_book = booktype_book
def html_before_write(self, book, chapter):
from lxml import etree
from ebooklib import epub
try:
tree = parse_html_string(chapter.content)
except:
return
root = tree.getroottree()
if len(root.find('body')) != 0:
body = tree.find('body')
# <span id="InsertNoteID_1_marker1" class="InsertNoteMarker"><sup><a href="#InsertNoteID_1">1</a></sup><span>
# <ol id="InsertNote_NoteList"><li id="InsertNoteID_1">prvi footnote <span id="InsertNoteID_1_LinkBacks"><sup><a href="#InsertNoteID_1_marker1">^</a></sup></span></li>
# <a epub:type="noteref" href="#n1">1</a></p>
# <aside epub:type="footnote" id="n1"><p>These have been corrected in this EPUB3 edition.</p></aside>
for footnote in body.xpath('//span[@class="InsertNoteMarker"]'):
footnote_id = footnote.get('id')[:-8]
a = footnote.getchildren()[0].getchildren()[0]
footnote_text = body.xpath('//li[@id="%s"]' % footnote_id)[0]
a.attrib['{%s}type' % epub.NAMESPACES['EPUB']] = 'noteref'
ftn = etree.SubElement(body, 'aside', {'id': footnote_id})
ftn.attrib['{%s}type' % epub.NAMESPACES['EPUB']] = 'footnote'
ftn_p = etree.SubElement(ftn, 'p')
ftn_p.text = footnote_text.text
old_footnote = body.xpath('//ol[@id="InsertNote_NoteList"]')
if len(old_footnote) > 0:
body.remove(old_footnote[0])
chapter.content = etree.tostring(tree, pretty_print=True, encoding='utf-8')

68
ebooklib/plugins/sourcecode.py
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@@ -1,68 +0,0 @@
# This file is part of EbookLib.
# Copyright (c) 2013 Aleksandar Erkalovic <aerkalov@gmail.com>
#
# EbookLib is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# EbookLib is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with EbookLib. If not, see <http://www.gnu.org/licenses/>.
from ebooklib.plugins.base import BasePlugin
from ebooklib.utils import parse_html_string
class SourceHighlighter(BasePlugin):
def __init__(self):
pass
def html_before_write(self, book, chapter):
from lxml import etree, html
from pygments import highlight
from pygments.formatters import HtmlFormatter
from ebooklib import epub
try:
tree = parse_html_string(chapter.content)
except:
return
root = tree.getroottree()
had_source = False
if len(root.find('body')) != 0:
body = tree.find('body')
# check for embeded source
for source in body.xpath('//pre[contains(@class,"source-")]'):
css_class = source.get('class')
source_text = (source.text or '') + ''.join([html.tostring(child) for child in source.iterchildren()])
if 'source-python' in css_class:
from pygments.lexers import PythonLexer
# _text = highlight(source_text, PythonLexer(), HtmlFormatter(linenos="inline"))
_text = highlight(source_text, PythonLexer(), HtmlFormatter())
if 'source-css' in css_class:
from pygments.lexers import CssLexer
_text = highlight(source_text, CssLexer(), HtmlFormatter())
_parent = source.getparent()
_parent.replace(source, etree.XML(_text))
had_source = True
if had_source:
chapter.add_link(href="style/code.css", rel="stylesheet", type="text/css")
chapter.content = etree.tostring(tree, pretty_print=True, encoding='utf-8')

230
ebooklib/plugins/standard.py
View File

@@ -1,230 +0,0 @@
# This file is part of EbookLib.
# Copyright (c) 2013 Aleksandar Erkalovic <aerkalov@gmail.com>
#
# EbookLib is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# EbookLib is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with EbookLib. If not, see <http://www.gnu.org/licenses/>.
import six
from ebooklib.plugins.base import BasePlugin
from ebooklib.utils import parse_html_string
# TODO:
# - should also look for the _required_ elements
# http://www.w3.org/html/wg/drafts/html/master/tabular-data.html#the-table-element
ATTRIBUTES_GLOBAL = ['accesskey', 'class', 'contenteditable', 'contextmenu', 'dir', 'draggable',
'dropzone', 'hidden', 'id', 'inert', 'itemid', 'itemprop', 'itemref',
'itemscope', 'itemtype', 'lang', 'spellcheck', 'style', 'tabindex',
'title', 'translate', 'epub:type']
# Remove <u> for now from here
DEPRECATED_TAGS = ['acronym', 'applet', 'basefont', 'big', 'center', 'dir', 'font', 'frame',
'frameset', 'isindex', 'noframes', 's', 'strike', 'tt']
def leave_only(item, tag_list):
for _attr in six.iterkeys(item.attrib):
if _attr not in tag_list:
del item.attrib[_attr]
class SyntaxPlugin(BasePlugin):
NAME = 'Check HTML syntax'
def html_before_write(self, book, chapter):
from lxml import etree
try:
tree = parse_html_string(chapter.content)
except:
return
root = tree.getroottree()
# delete deprecated tags
# i should really have a list of allowed tags
for tag in DEPRECATED_TAGS:
etree.strip_tags(root, tag)
head = tree.find('head')
if head is not None and len(head) != 0:
for _item in head:
if _item.tag == 'base':
leave_only(_item, ATTRIBUTES_GLOBAL + ['href', 'target'])
elif _item.tag == 'link':
leave_only(_item, ATTRIBUTES_GLOBAL + ['href', 'crossorigin', 'rel', 'media', 'hreflang', 'type', 'sizes'])
elif _item.tag == 'title':
if _item.text == '':
head.remove(_item)
elif _item.tag == 'meta':
leave_only(_item, ATTRIBUTES_GLOBAL + ['name', 'http-equiv', 'content', 'charset'])
# just remove for now, but really should not be like this
head.remove(_item)
elif _item.tag == 'script':
leave_only(_item, ATTRIBUTES_GLOBAL + ['src', 'type', 'charset', 'async', 'defer', 'crossorigin'])
elif _item.tag == 'source':
leave_only(_item, ATTRIBUTES_GLOBAL + ['src', 'type', 'media'])
elif _item.tag == 'style':
leave_only(_item, ATTRIBUTES_GLOBAL + ['media', 'type', 'scoped'])
else:
leave_only(_item, ATTRIBUTES_GLOBAL)
if len(root.find('body')) != 0:
body = tree.find('body')
for _item in body.iter():
# it is not
# <a class="indexterm" href="ch05.html#ix_epub:trigger_element">
if _item.tag == 'a':
leave_only(_item, ATTRIBUTES_GLOBAL + ['href', 'target', 'download', 'rel', 'hreflang', 'type'])
elif _item.tag == 'area':
leave_only(_item, ATTRIBUTES_GLOBAL + ['alt', 'coords', 'shape', 'href', 'target', 'download', 'rel', 'hreflang', 'type'])
elif _item.tag == 'audio':
leave_only(_item, ATTRIBUTES_GLOBAL + ['src', 'crossorigin', 'preload', 'autoplay', 'mediagroup', 'loop', 'muted', 'controls'])
elif _item.tag == 'blockquote':
leave_only(_item, ATTRIBUTES_GLOBAL + ['cite'])
elif _item.tag == 'button':
leave_only(_item, ATTRIBUTES_GLOBAL + ['autofocus', 'disabled', 'form', 'formaction', 'formenctype', 'formmethod', 'formnovalidate',
'formtarget', 'name', 'type', 'value', 'menu'])
elif _item.tag == 'canvas':
leave_only(_item, ATTRIBUTES_GLOBAL + ['width', 'height'])
elif _item.tag == 'canvas':
leave_only(_item, ATTRIBUTES_GLOBAL + ['width', 'height'])
elif _item.tag == 'del':
leave_only(_item, ATTRIBUTES_GLOBAL + ['cite', 'datetime'])
elif _item.tag == 'details':
leave_only(_item, ATTRIBUTES_GLOBAL + ['open'])
elif _item.tag == 'embed':
leave_only(_item, ATTRIBUTES_GLOBAL + ['src', 'type', 'width', 'height'])
elif _item.tag == 'fieldset':
leave_only(_item, ATTRIBUTES_GLOBAL + ['disable', 'form', 'name'])
elif _item.tag == 'details':
leave_only(_item, ATTRIBUTES_GLOBAL + ['accept-charset', 'action', 'autocomplete', 'enctype', 'method', 'name', 'novalidate', 'target'])
elif _item.tag == 'iframe':
leave_only(_item, ATTRIBUTES_GLOBAL + ['src', 'srcdoc', 'name', 'sandbox', 'seamless', 'allowfullscreen', 'width', 'height'])
elif _item.tag == 'img':
_src = _item.get('src', '').lower()
if _src.startswith('http://') or _src.startswith('https://'):
if 'remote-resources' not in chapter.properties:
chapter.properties.append('remote-resources')
# THIS DOES NOT WORK, ONLY VIDEO AND AUDIO FILES CAN BE REMOTE RESOURCES
# THAT MEANS I SHOULD ALSO CATCH <SOURCE TAG
from ebooklib import epub
_img = epub.EpubImage(file_name = _item.get('src'))
book.add_item(_img)
leave_only(_item, ATTRIBUTES_GLOBAL + ['alt', 'src', 'crossorigin', 'usemap', 'ismap', 'width', 'height'])
elif _item.tag == 'input':
leave_only(_item, ATTRIBUTES_GLOBAL + ['accept', 'alt', 'autocomplete', 'autofocus', 'checked', 'dirname',
'disabled', 'form', 'formaction', 'formenctype', 'formmethod', 'formnovalidate',
'formtarget', 'height', 'inputmode', 'list', 'max', 'maxlength', 'min', 'multiple',
'name', 'pattern', 'placeholder', 'readonly', 'required', 'size', 'src', 'step'
'type', 'value', 'width'])
elif _item.tag == 'ins':
leave_only(_item, ATTRIBUTES_GLOBAL + ['cite', 'datetime'])
elif _item.tag == 'keygen':
leave_only(_item, ATTRIBUTES_GLOBAL + ['autofocus', 'challenge', 'disabled', 'form', 'keytype', 'name'])
elif _item.tag == 'label':
leave_only(_item, ATTRIBUTES_GLOBAL + ['form', 'for'])
elif _item.tag == 'label':
leave_only(_item, ATTRIBUTES_GLOBAL + ['form', 'for'])
elif _item.tag == 'map':
leave_only(_item, ATTRIBUTES_GLOBAL + ['name'])
elif _item.tag == 'menu':
leave_only(_item, ATTRIBUTES_GLOBAL + ['type', 'label'])
elif _item.tag == 'object':
leave_only(_item, ATTRIBUTES_GLOBAL + ['data', 'type', 'typemustmatch', 'name', 'usemap', 'form', 'width', 'height'])
elif _item.tag == 'ol':
leave_only(_item, ATTRIBUTES_GLOBAL + ['reversed', 'start', 'type'])
elif _item.tag == 'optgroup':
leave_only(_item, ATTRIBUTES_GLOBAL + ['disabled', 'label'])
elif _item.tag == 'option':
leave_only(_item, ATTRIBUTES_GLOBAL + ['disabled', 'label', 'selected', 'value'])
elif _item.tag == 'output':
leave_only(_item, ATTRIBUTES_GLOBAL + ['for', 'form', 'name'])
elif _item.tag == 'param':
leave_only(_item, ATTRIBUTES_GLOBAL + ['name', 'value'])
elif _item.tag == 'progress':
leave_only(_item, ATTRIBUTES_GLOBAL + ['value', 'max'])
elif _item.tag == 'q':
leave_only(_item, ATTRIBUTES_GLOBAL + ['cite'])
elif _item.tag == 'select':
leave_only(_item, ATTRIBUTES_GLOBAL + ['autofocus', 'disabled', 'form', 'multiple', 'name', 'required', 'size'])
elif _item.tag == 'table':
if _item.get('border', None):
if _item.get('border') == '0':
_item.set('border', '')
if _item.get('summary', None):
_caption = etree.Element('caption', {})
_caption.text = _item.get('summary')
_item.insert(0, _caption)
# add it as caption
del _item.attrib['summary']
leave_only(_item, ATTRIBUTES_GLOBAL + ['border', 'sortable'])
elif _item.tag == 'dl':
_d = _item.find('dd')
if _d is not None and len(_d) == 0:
pass
# http://html5doctor.com/the-dl-element/
# should be like this really
# some of the elements can be missing
# dl
# dt
# dd
# dt
# dd
elif _item.tag == 'td':
leave_only(_item, ATTRIBUTES_GLOBAL + ['colspan', 'rowspan', 'headers'])
elif _item.tag == 'textarea':
leave_only(_item, ATTRIBUTES_GLOBAL + ['autocomplete', 'autofocus', 'cols', 'dirname', 'disabled', 'form',
'inputmode', 'maxlength', 'name', 'placeholder', 'readonly', 'required',
'rows', 'wrap'])
elif _item.tag in ['col', 'colgroup']:
leave_only(_item, ATTRIBUTES_GLOBAL + ['span'])
elif _item.tag == 'th':
leave_only(_item, ATTRIBUTES_GLOBAL + ['colspan', 'rowspan', 'headers', 'scope', 'abbr', 'sorted'])
elif _item.tag in ['time']:
leave_only(_item, ATTRIBUTES_GLOBAL + ['datetime'])
elif _item.tag in ['track']:
leave_only(_item, ATTRIBUTES_GLOBAL + ['kind', 'src', 'srclang', 'label', 'default'])
elif _item.tag == 'video':
leave_only(_item, ATTRIBUTES_GLOBAL + ['src', 'crossorigin', 'poster', 'preload', 'autoplay', 'mediagroup',
'loop', 'muted', 'controls', 'width', 'height'])
elif _item.tag == 'svg':
# We need to add property "svg" in case we have embeded svg file
if 'svg' not in chapter.properties:
chapter.properties.append('svg')
if _item.get('viewbox', None):
del _item.attrib['viewbox']
if _item.get('preserveaspectratio', None):
del _item.attrib['preserveaspectratio']
else:
for _attr in six.iterkeys(_item.attrib):
if _attr not in ATTRIBUTES_GLOBAL:
del _item.attrib[_attr]
chapter.content = etree.tostring(tree, pretty_print=True, encoding='utf-8', xml_declaration=True)
return chapter.content

82
ebooklib/plugins/tidyhtml.py
View File

@@ -1,82 +0,0 @@
# This file is part of EbookLib.
# Copyright (c) 2013 Aleksandar Erkalovic <aerkalov@gmail.com>
#
# EbookLib is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# EbookLib is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with EbookLib. If not, see <http://www.gnu.org/licenses/>.
import six
import subprocess
from ebooklib.plugins.base import BasePlugin
from ebooklib.utils import parse_html_string
# Recommend usage of
# - https://github.com/w3c/tidy-html5
def tidy_cleanup(content, **extra):
cmd = []
for k, v in six.iteritems(extra):
if v:
cmd.append('--%s' % k)
cmd.append(v)
else:
cmd.append('-%s' % k)
# must parse all other extra arguments
try:
p = subprocess.Popen(['tidy']+cmd, shell=False,
stdin=subprocess.PIPE, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, close_fds=True)
except OSError:
return (3, None)
p.stdin.write(content)
(cont, p_err) = p.communicate()
# 0 - all ok
# 1 - there were warnings
# 2 - there were errors
# 3 - exception
return (p.returncode, cont)
class TidyPlugin(BasePlugin):
NAME = 'Tidy HTML'
OPTIONS = {'char-encoding': 'utf8',
'tidy-mark': 'no'
}
def __init__(self, extra = {}):
self.options = dict(self.OPTIONS)
self.options.update(extra)
def html_before_write(self, book, chapter):
if not chapter.content:
return None
(_, chapter.content) = tidy_cleanup(chapter.content, **self.options)
return chapter.content
def html_after_read(self, book, chapter):
if not chapter.content:
return None
(_, chapter.content) = tidy_cleanup(chapter.content, **self.options)
return chapter.content

60
ebooklib/utils.py
View File

@@ -1,60 +0,0 @@
# This file is part of EbookLib.
# Copyright (c) 2013 Aleksandar Erkalovic <aerkalov@gmail.com>
#
# EbookLib is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# EbookLib is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with EbookLib. If not, see <http://www.gnu.org/licenses/>.
import io
import mimetypes
from lxml import etree
mimetype_initialised = False
def debug(obj):
import pprint
pp = pprint.PrettyPrinter(indent=4)
pp.pprint(obj)
def parse_string(s):
try:
tree = etree.parse(io.BytesIO(s.encode('utf-8')))
except:
tree = etree.parse(io.BytesIO(s))
return tree
def parse_html_string(s):
from lxml import html
utf8_parser = html.HTMLParser(encoding='utf-8')
html_tree = html.document_fromstring(s, parser=utf8_parser)
return html_tree
def guess_type(extenstion):
global mimetype_initialised
if not mimetype_initialised:
mimetypes.init()
mimetypes.add_type('application/xhtml+xml', '.xhtml')
mimetype_initialised = True
return mimetypes.guess_type(extenstion)

208
parsers/ebook.py
View File

@@ -1,208 +0,0 @@
#!/usr/bin/env python3
# This file is a part of Lector, a Qt based ebook reader
# Copyright (C) 2017 BasioMeusPuga
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import re
import sys
import shutil
import zipfile
import collections
from urllib.parse import unquote
import ebooklib.epub
import KindleUnpack.kindleunpack as KindleUnpack
class ParseEBook:
def __init__(self, filename, temp_dir, file_md5):
# TODO
# Maybe also include book description
self.filename = filename
self.filename_copy = filename
self.book = None
self.temp_dir = temp_dir
self.temp_dir_copy = temp_dir
self.file_md5 = file_md5
# This is a crazy lazy thing
# But it works for now
self.use_KindleUnpack = False
kindle_extensions = ['.mobi', '.azw', '.azw3', '.azw4', '.prc']
if os.path.splitext(self.filename)[1].lower() in kindle_extensions:
self.use_KindleUnpack = True
self.temp_dir = os.path.join(
self.temp_dir, os.path.basename(self.filename))
def read_book(self):
if self.use_KindleUnpack:
with HidePrinting():
KindleUnpack.unpackBook(self.filename, self.temp_dir)
new_filename_with_ext = os.path.splitext(
os.path.basename(self.filename))[0] + '.epub'
self.filename = os.path.join(
self.temp_dir, 'mobi8', new_filename_with_ext)
if not os.path.exists(self.filename):
zip_dir = os.path.join(self.temp_dir, 'mobi7')
zip_file = os.path.join(
self.temp_dir_copy, new_filename_with_ext)
self.filename = shutil.make_archive(zip_file, 'zip', zip_dir)
self.temp_dir = self.temp_dir_copy
try:
self.book = ebooklib.epub.read_epub(self.filename)
except (KeyError, AttributeError):
print('Cannot parse ' + self.filename)
return
except FileNotFoundError:
print('Intermediate FNF: ' + self.filename_copy)
return
def get_title(self):
return self.book.title.strip()
def get_author(self):
try:
return self.book.metadata['http://purl.org/dc/elements/1.1/']['creator'][0][0]
except KeyError:
return
def get_year(self):
try:
return self.book.metadata['http://purl.org/dc/elements/1.1/']['date'][0][0][:4]
except KeyError:
return
def get_cover_image(self):
# Get cover image
# This seems hack-ish, but that's never stopped me before
image_path = None
try:
cover = self.book.metadata['http://www.idpf.org/2007/opf']['cover'][0][1]['content']
cover_item = self.book.get_item_with_id(cover)
if cover_item:
return cover_item.get_content()
except KeyError:
pass
# In case no cover_item is returned, we look for a cover in the guide
for i in self.book.guide:
try:
if (i['title'].lower in ['cover', 'cover-image', 'coverimage'] or
i['type'] == 'coverimagestandard'):
image_path = i['href']
break
except KeyError:
pass
# If that fails, we find the first image referenced in the book
if not image_path:
for i in self.book.items:
if i.media_type == 'application/xhtml+xml':
_regex = re.search(r"src=\"(.*)\"\/", i.content.decode('utf-8'))
if _regex:
image_path = _regex[1]
break
if image_path:
for i in self.book.get_items_of_type(ebooklib.ITEM_IMAGE):
if os.path.basename(i.file_name) == os.path.basename(image_path):
return i.get_content()
# And if that too fails, we get the first image referenced in the file
for i in self.book.items:
if i.media_type == 'image/jpeg' or i.media_type == 'image/png':
return i.get_content()
def get_isbn(self):
try:
identifier = self.book.metadata['http://purl.org/dc/elements/1.1/']['identifier']
for i in identifier:
identifier_provider = i[1]['{http://www.idpf.org/2007/opf}scheme']
if identifier_provider.lower() == 'isbn':
isbn = i[0]
return isbn
except KeyError:
return
def get_tags(self):
try:
subject = self.book.metadata['http://purl.org/dc/elements/1.1/']['subject']
tags = [i[0] for i in subject]
return tags
except KeyError:
return
def get_contents(self):
extract_path = os.path.join(self.temp_dir, self.file_md5)
zipfile.ZipFile(self.filename).extractall(extract_path)
contents = collections.OrderedDict()
def flatten_section(toc_element):
output_list = []
for i in toc_element:
if isinstance(i, (tuple, list)):
output_list.extend(flatten_section(i))
else:
output_list.append(i)
return output_list
for i in self.book.toc:
if isinstance(i, (tuple, list)):
flattened = flatten_section(i)
for j in flattened:
title = j.title
href = unquote(j.href)
try:
content = self.book.get_item_with_href(href).get_content()
contents[title] = content.decode()
except AttributeError:
pass
else:
title = i.title
href = unquote(i.href)
try:
content = self.book.get_item_with_href(href).get_content()
if content:
contents[title] = content.decode()
else:
raise AttributeError
except AttributeError:
contents[title] = 'Parse Error'
# Special settings that have to be returned with the file
# Referenced in sorter.py
file_settings = {
'images_only': False}
return contents, file_settings
class HidePrinting:
def __enter__(self):
self._original_stdout = sys.stdout
sys.stdout = None
def __exit__(self, exc_type, exc_val, exc_tb):
sys.stdout = self._original_stdout