134 lines
3.5 KiB
Python
134 lines
3.5 KiB
Python
# This file is part of EbookLib.
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# Copyright (c) 2013 Aleksandar Erkalovic <aerkalov@gmail.com>
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#
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# EbookLib is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# EbookLib is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with EbookLib. If not, see <http://www.gnu.org/licenses/>.
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import io
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import mimetypes
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import os
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from lxml import etree
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mimetype_initialised = False
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def debug(obj):
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import pprint
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pp = pprint.PrettyPrinter(indent=4)
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pp.pprint(obj)
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def parse_string(s):
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parser = etree.XMLParser(recover=True, resolve_entities=False)
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try:
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tree = etree.parse(io.BytesIO(s.encode("utf-8")), parser=parser)
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except Exception:
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tree = etree.parse(io.BytesIO(s), parser=parser)
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return tree
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def parse_html_string(s):
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from lxml import html
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utf8_parser = html.HTMLParser(encoding="utf-8")
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html_tree = html.document_fromstring(s, parser=utf8_parser)
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return html_tree
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def guess_type(extenstion):
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global mimetype_initialised
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if not mimetype_initialised:
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mimetypes.init()
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mimetypes.add_type("application/xhtml+xml", ".xhtml")
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mimetype_initialised = True
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return mimetypes.guess_type(extenstion)
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def create_pagebreak(pageref, label=None, html=True):
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from ebooklib.epub import NAMESPACES
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pageref_attributes = {
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"{%s}type" % NAMESPACES["EPUB"]: "pagebreak", # noqa
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"title": "{pageref}".format(pageref=pageref), # noqa: UP032
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"id": "{pageref}".format(pageref=pageref), # noqa: UP032
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}
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pageref_elem = etree.Element("span", pageref_attributes, nsmap={"epub": NAMESPACES["EPUB"]})
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if label:
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pageref_elem.text = label
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if html:
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return etree.tostring(pageref_elem, encoding="unicode")
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return pageref_elem
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def get_headers(elem):
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for n in range(1, 7):
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headers = elem.xpath("./h{n}".format(n=n)) # noqa: UP032
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if len(headers) > 0:
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text = headers[0].text_content().strip()
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if len(text) > 0:
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return text
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return None
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def get_pages(item):
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body = parse_html_string(item.get_body_content())
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pages = []
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for elem in body.iter():
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if "epub:type" in elem.attrib:
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if elem.get("id") is not None:
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_text = None
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if elem.text is not None and elem.text.strip() != "":
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_text = elem.text.strip()
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if _text is None:
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_text = elem.get("aria-label")
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if _text is None:
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_text = get_headers(elem)
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pages.append((item.get_name(), elem.get("id"), _text or elem.get("id")))
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return pages
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def get_pages_for_items(items):
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pages_from_docs = [get_pages(item) for item in items]
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return [item for pages in pages_from_docs for item in pages]
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class Directory(object): # noqa: UP004
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def __init__(self, directory_path):
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self.directory_path = directory_path
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def read(self, subname):
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with open(os.path.join(self.directory_path, subname), "rb") as fp:
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return fp.read()
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def close(self):
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pass
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