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Mini Shell
Mini Shell
__license__ = 'GPL 3'
__copyright__ = '2010, Li Fanxi <lifanxi@freemindworld.com>'
__docformat__ = 'restructuredtext en'
import os
from calibre.customize.conversion import InputFormatPlugin
from calibre.ptempfile import TemporaryDirectory
from calibre.utils.filenames import ascii_filename
HTML_TEMPLATE = '<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>%s</title></head><body>\n%s\n</body></html>'
def html_encode(s):
return s.replace('&', '&').replace('<', '<').replace('>', '>').replace('"', '"').replace("'", ''').replace('\n', '<br/>').replace(' ', ' ') # noqa
class SNBInput(InputFormatPlugin):
name = 'SNB Input'
author = 'Li Fanxi'
description = _('Convert SNB files to OEB')
file_types = {'snb'}
commit_name = 'snb_input'
options = set()
def convert(self, stream, options, file_ext, log,
accelerators):
import uuid
from calibre.ebooks.oeb.base import DirContainer
from calibre.ebooks.snb.snbfile import SNBFile
from calibre.utils.xml_parse import safe_xml_fromstring
log.debug("Parsing SNB file...")
snbFile = SNBFile()
try:
snbFile.Parse(stream)
except:
raise ValueError("Invalid SNB file")
if not snbFile.IsValid():
log.debug("Invalid SNB file")
raise ValueError("Invalid SNB file")
log.debug("Handle meta data ...")
from calibre.ebooks.conversion.plumber import create_oebbook
oeb = create_oebbook(log, None, options,
encoding=options.input_encoding, populate=False)
meta = snbFile.GetFileStream('snbf/book.snbf')
if meta is not None:
meta = safe_xml_fromstring(meta)
l = {'title' : './/head/name',
'creator' : './/head/author',
'language' : './/head/language',
'generator': './/head/generator',
'publisher': './/head/publisher',
'cover' : './/head/cover', }
d = {}
for item in l:
node = meta.find(l[item])
if node is not None:
d[item] = node.text if node.text is not None else ''
else:
d[item] = ''
oeb.metadata.add('title', d['title'])
oeb.metadata.add('creator', d['creator'], attrib={'role':'aut'})
oeb.metadata.add('language', d['language'].lower().replace('_', '-'))
oeb.metadata.add('generator', d['generator'])
oeb.metadata.add('publisher', d['publisher'])
if d['cover'] != '':
oeb.guide.add('cover', 'Cover', d['cover'])
bookid = str(uuid.uuid4())
oeb.metadata.add('identifier', bookid, id='uuid_id', scheme='uuid')
for ident in oeb.metadata.identifier:
if 'id' in ident.attrib:
oeb.uid = oeb.metadata.identifier[0]
break
with TemporaryDirectory('_snb2oeb', keep=True) as tdir:
log.debug('Process TOC ...')
toc = snbFile.GetFileStream('snbf/toc.snbf')
oeb.container = DirContainer(tdir, log)
if toc is not None:
toc = safe_xml_fromstring(toc)
i = 1
for ch in toc.find('.//body'):
chapterName = ch.text
chapterSrc = ch.get('src')
fname = 'ch_%d.htm' % i
data = snbFile.GetFileStream('snbc/' + chapterSrc)
if data is None:
continue
snbc = safe_xml_fromstring(data)
lines = []
for line in snbc.find('.//body'):
if line.tag == 'text':
lines.append('<p>%s</p>' % html_encode(line.text))
elif line.tag == 'img':
lines.append('<p><img src="%s" /></p>' % html_encode(line.text))
with open(os.path.join(tdir, fname), 'wb') as f:
f.write((HTML_TEMPLATE % (chapterName, '\n'.join(lines))).encode('utf-8', 'replace'))
oeb.toc.add(ch.text, fname)
id, href = oeb.manifest.generate(id='html',
href=ascii_filename(fname))
item = oeb.manifest.add(id, href, 'text/html')
item.html_input_href = fname
oeb.spine.add(item, True)
i = i + 1
imageFiles = snbFile.OutputImageFiles(tdir)
for f, m in imageFiles:
id, href = oeb.manifest.generate(id='image',
href=ascii_filename(f))
item = oeb.manifest.add(id, href, m)
item.html_input_href = f
return oeb
Zerion Mini Shell 1.0