103 lines
3.2 KiB
Python
103 lines
3.2 KiB
Python
#!/usr/bin/env python3
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# Every parser is supposed to have the following methods, even if they return None:
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# read_book()
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# get_title()
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# get_author()
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# get_year()
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# get_cover_image()
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# get_isbn
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# TODO More for get contents, get TOC
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import os
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import re
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import ebooklib.epub
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class ParseEPUB:
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def __init__(self, filename):
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# TODO
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# Maybe also include book description
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self.filename = filename
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self.book = None
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def read_book(self):
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try:
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self.book = ebooklib.epub.read_epub(self.filename)
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except (KeyError, AttributeError):
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print('Cannot parse ' + self.filename)
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return
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def get_title(self):
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return self.book.title.strip()
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def get_author(self):
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try:
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return self.book.metadata['http://purl.org/dc/elements/1.1/']['creator'][0][0]
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except KeyError:
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return None
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def get_year(self):
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try:
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return self.book.metadata['http://purl.org/dc/elements/1.1/']['date'][0][0][:4]
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except KeyError:
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return None
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def get_cover_image(self):
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# TODO
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# Generate a cover image in case one isn't found
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# This has to be done or the database module will
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# error out
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# Get cover image
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# This seems hack-ish, but that's never stopped me before
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image_path = None
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try:
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cover = self.book.metadata['http://www.idpf.org/2007/opf']['cover'][0][1]['content']
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cover_item = self.book.get_item_with_id(cover)
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if cover_item:
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return cover_item.get_content()
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# In case no cover_item is returned,
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# we look for a cover in the guide
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for j in self.book.guide:
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try:
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if (j['title'].lower in ['cover', 'cover-image', 'coverimage'] or
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j['type'] == 'coverimagestandard'):
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image_path = j['href']
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break
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except KeyError:
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pass
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# And if all else fails, we find
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# the first image referenced in the book
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# Fuck everything
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if not image_path:
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for j in self.book.items:
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if j.media_type == 'application/xhtml+xml':
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_regex = re.search(r"src=\"(.*)\"\/", j.content.decode('utf-8'))
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if _regex:
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image_path = _regex[1]
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break
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for k in self.book.get_items_of_type(ebooklib.ITEM_IMAGE):
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if os.path.basename(k.file_name) == os.path.basename(image_path):
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image_content = k.get_content()
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break
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return image_content
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except KeyError:
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return
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def get_isbn(self):
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try:
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identifier = self.book.metadata['http://purl.org/dc/elements/1.1/']['identifier']
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for i in identifier:
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identifier_provider = i[1]['{http://www.idpf.org/2007/opf}scheme']
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if identifier_provider.lower() == 'isbn':
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isbn = i[0]
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return isbn
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except KeyError:
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return
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