mirror of
https://github.com/gryf/ebook-converter.git
synced 2026-01-09 05:04:12 +01:00
107 lines
3.5 KiB
Python
107 lines
3.5 KiB
Python
import os, glob
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from ebook_converter import CurrentDir
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from ebook_converter.ebooks.mobi import MobiError
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from ebook_converter.ebooks.mobi.reader.mobi6 import MobiReader
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from ebook_converter.ebooks.mobi.reader.headers import MetadataHeader
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from ebook_converter.utils.logging import default_log
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from ebook_converter.ebooks import DRMError
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from ebook_converter.ebooks.mobi.reader.mobi8 import Mobi8Reader
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from ebook_converter.ebooks.conversion.plumber import Plumber, create_oebbook
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from ebook_converter.customize.ui import (plugin_for_input_format,
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plugin_for_output_format)
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from ebook_converter.utils.ipc.simple_worker import fork_job
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__license__ = 'GPL v3'
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__copyright__ = '2012, Kovid Goyal <kovid@kovidgoyal.net>'
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__docformat__ = 'restructuredtext en'
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class BadFormat(ValueError):
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pass
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def do_explode(path, dest):
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with open(path, 'rb') as stream:
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mr = MobiReader(stream, default_log, None, None)
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with CurrentDir(dest):
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mr = Mobi8Reader(mr, default_log)
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opf = os.path.abspath(mr())
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try:
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os.remove('debug-raw.html')
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except:
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pass
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return opf
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def explode(path, dest, question=lambda x:True):
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with open(path, 'rb') as stream:
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raw = stream.read(3)
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stream.seek(0)
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if raw == b'TPZ':
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raise BadFormat(_('This is not a MOBI file. It is a Topaz file.'))
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try:
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header = MetadataHeader(stream, default_log)
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except MobiError:
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raise BadFormat(_('This is not a MOBI file.'))
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if header.encryption_type != 0:
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raise DRMError(_('This file is locked with DRM. It cannot be tweaked.'))
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kf8_type = header.kf8_type
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if kf8_type is None:
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raise BadFormat(_('This MOBI file does not contain a KF8 format '
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'book. KF8 is the new format from Amazon. calibre can '
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'only tweak MOBI files that contain KF8 books. Older '
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'MOBI files without KF8 are not tweakable.'))
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if kf8_type == 'joint':
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if not question(_('This MOBI file contains both KF8 and '
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'older Mobi6 data. Tweaking it will remove the Mobi6 data, which '
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'means the file will not be usable on older Kindles. Are you '
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'sure?')):
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return None
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return fork_job('ebook_converter.ebooks.mobi.tweak', 'do_explode', args=(path,
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dest), no_output=True)['result']
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def set_cover(oeb):
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if 'cover' not in oeb.guide or oeb.metadata['cover']:
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return
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cover = oeb.guide['cover']
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if cover.href in oeb.manifest.hrefs:
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item = oeb.manifest.hrefs[cover.href]
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oeb.metadata.clear('cover')
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oeb.metadata.add('cover', item.id)
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def do_rebuild(opf, dest_path):
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plumber = Plumber(opf, dest_path, default_log)
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plumber.setup_options()
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inp = plugin_for_input_format('azw3')
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outp = plugin_for_output_format('azw3')
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plumber.opts.mobi_passthrough = True
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oeb = create_oebbook(default_log, opf, plumber.opts)
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set_cover(oeb)
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outp.convert(oeb, dest_path, inp, plumber.opts, default_log)
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def rebuild(src_dir, dest_path):
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opf = glob.glob(os.path.join(src_dir, '*.opf'))
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if not opf:
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raise ValueError('No OPF file found in %s'%src_dir)
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opf = opf[0]
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# For debugging, uncomment the following two lines
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# def fork_job(a, b, args=None, no_output=True):
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# do_rebuild(*args)
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fork_job('ebook_converter.ebooks.mobi.tweak', 'do_rebuild', args=(opf, dest_path),
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no_output=True)
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