def unpack(self, book_id, fmt):
'''
Unpack the book in a temporary directory
:param book_id: The book identifier
:param fmt: The format to unpack
'''
from calibre.constants import DEBUG
from calibre.ptempfile import PersistentTemporaryDirectory
from calibre.ebooks.tweak import get_tools
from calibre.ebooks.oeb.base import OEBBook
from calibre.ebooks.oeb.reader import OEBReader
from calibre.utils.logging import default_log
from calibre_plugins.prince_pdf.dummy_preprocessor import dummy_preprocessor
book_file = self.db.format(book_id,
fmt,
index_is_id=True,
as_path=True)
if DEBUG: print(_('Unpacking book...'))
tdir = PersistentTemporaryDirectory('_unpack')
exploder = get_tools(fmt)[0]
if (exploder == None): return (None, None)
opf = exploder(book_file, tdir)
html_preprocessor = dummy_preprocessor()
css_preprocessor = dummy_preprocessor()
oeb = OEBBook(default_log, html_preprocessor, css_preprocessor)
OEBReader()(oeb, opf)
return (opf, oeb)
def CreateOeb(log, path_or_stream, opts, encoding='utf-8'):
from calibre.ebooks.conversion.preprocess import HTMLPreProcessor
from calibre.ebooks.oeb.base import OEBBook
html_preprocessor = HTMLPreProcessor(log, opts)
if not encoding:
encoding = None
pretty_print = opts.pretty_print if opts else False
return OEBBook(log, html_preprocessor, pretty_print=pretty_print, input_encoding=encoding)
def main(argv=sys.argv):
reader = OEBReader()
for arg in argv[1:]:
oeb = reader(OEBBook(), arg)
for name, doc in oeb.to_opf1().values():
print etree.tostring(doc, pretty_print=True)
for name, doc in oeb.to_opf2(page_map=True).values():
print etree.tostring(doc, pretty_print=True)
return 0
def CreateOeb(log, path_or_stream, opts, encoding='utf-8'):
"""创建一个空的OEB书籍 """
html_preprocessor = HTMLPreProcessor(log, opts)
if not encoding:
encoding = None
return OEBBook(log,
html_preprocessor,
pretty_print=opts.pretty_print,
input_encoding=encoding)
def add_page_map(opfpath, opts):
oeb = OEBBook(opfpath)
selector = XPath(opts.page, namespaces=NSMAP)
name_for = build_name_for(opts.page_names)
idgen = ("calibre-page-%d" % n for n in count(1))
for item in oeb.spine:
data = item.data
for elem in selector(data):
name = name_for(elem)
id = elem.get('id', None)
if id is None:
id = elem.attrib['id'] = next(idgen)
href = '#'.join((item.href, id))
oeb.pages.add(name, href)
writer = None # DirWriter(version='2.0', page_map=True)
writer.dump(oeb, opfpath)
if x > SCREEN_X or y > SCREEN_Y:
xScale = float(x) / SCREEN_X
yScale = float(y) / SCREEN_Y
scale = max(xScale, yScale)
# TODO : intelligent image rotation
# img = img.rotate(90)
# x,y = y,x
img = resize_image(img, x // scale, y // scale)
with lopen(imagePath, 'wb') as f:
f.write(image_to_data(img, fmt=imagePath.rpartition('.')[-1]))
if __name__ == '__main__':
from calibre.ebooks.oeb.reader import OEBReader
from calibre.ebooks.oeb.base import OEBBook
from calibre.ebooks.conversion.preprocess import HTMLPreProcessor
from calibre.customize.profiles import HanlinV3Output
class OptionValues:
pass
opts = OptionValues()
opts.output_profile = HanlinV3Output(None)
html_preprocessor = HTMLPreProcessor(None, None, opts)
from calibre.utils.logging import default_log
oeb = OEBBook(default_log, html_preprocessor)
reader = OEBReader
reader()(oeb, '/tmp/bbb/processed/')
SNBOutput(None).convert(oeb, '/tmp/test.snb', None, None, default_log)