本文整理汇总了Python中calibre.utils.logging.Log类的典型用法代码示例。如果您正苦于以下问题：Python Log类的具体用法？Python Log怎么用？Python Log使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Log类的14个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: main
def main(args=sys.argv):
log = Log()
parser, plumber = create_option_parser(args, log)
opts, leftover_args = parser.parse_args(args)
if len(leftover_args) > 3:
log.error('Extra arguments not understood:', u', '.join(leftover_args[3:]))
return 1
for x in ('read_metadata_from_opf', 'cover'):
if getattr(opts, x, None) is not None:
setattr(opts, x, abspath(getattr(opts, x)))
if opts.search_replace:
opts.search_replace = read_sr_patterns(opts.search_replace, log)
recommendations = [(n.dest, getattr(opts, n.dest),
OptionRecommendation.HIGH)
for n in parser.options_iter()
if n.dest]
plumber.merge_ui_recommendations(recommendations)
try:
plumber.run()
except ConversionUserFeedBack as e:
ll = {'info': log.info, 'warn': log.warn,
'error':log.error}.get(e.level, log.info)
ll(e.title)
if e.det_msg:
log.debug(e.detmsg)
ll(e.msg)
raise SystemExit(1)
log(_('Output saved to'), ' ', plumber.output)
return 0示例2: setup_pipeline
def setup_pipeline(self, *args):
oidx = self.groups.currentIndex().row()
input_format = self.input_format
output_format = self.output_format
output_path = 'dummy.'+output_format
log = Log()
log.outputs = []
input_file = 'dummy.'+input_format
if input_format in ARCHIVE_FMTS:
input_file = 'dummy.html'
self.plumber = Plumber(input_file, output_path, log)
def widget_factory(cls):
return cls(self.stack, self.plumber.get_option_by_name,
self.plumber.get_option_help, self.db, self.book_id)
self.mw = widget_factory(MetadataWidget)
self.setWindowTitle(_('Convert')+ ' ' + unicode(self.mw.title.text()))
lf = widget_factory(LookAndFeelWidget)
hw = widget_factory(HeuristicsWidget)
sr = widget_factory(SearchAndReplaceWidget)
ps = widget_factory(PageSetupWidget)
sd = widget_factory(StructureDetectionWidget)
toc = widget_factory(TOCWidget)
from calibre.gui2.actions.toc_edit import SUPPORTED
toc.manually_fine_tune_toc.setVisible(output_format.upper() in SUPPORTED)
debug = widget_factory(DebugWidget)
output_widget = self.plumber.output_plugin.gui_configuration_widget(
self.stack, self.plumber.get_option_by_name,
self.plumber.get_option_help, self.db, self.book_id)
input_widget = self.plumber.input_plugin.gui_configuration_widget(
self.stack, self.plumber.get_option_by_name,
self.plumber.get_option_help, self.db, self.book_id)
while True:
c = self.stack.currentWidget()
if not c:
break
self.stack.removeWidget(c)
widgets = [self.mw, lf, hw, ps, sd, toc, sr]
if input_widget is not None:
widgets.append(input_widget)
if output_widget is not None:
widgets.append(output_widget)
widgets.append(debug)
for w in widgets:
self.stack.addWidget(w)
w.set_help_signal.connect(self.help.setPlainText)
self._groups_model = GroupModel(widgets)
self.groups.setModel(self._groups_model)
idx = oidx if -1 < oidx < self._groups_model.rowCount() else 0
self.groups.setCurrentIndex(self._groups_model.index(idx))
self.stack.setCurrentIndex(idx)
try:
shutil.rmtree(self.plumber.archive_input_tdir, ignore_errors=True)
except:
pass示例3: complete
def complete(self, wc):
if wc == 2:
self.complete_input()
elif wc == 3:
self.complete_output()
else:
q = list(self.words[1:3])
q = [os.path.splitext(x)[0 if x.startswith('.') else 1].partition('.')[-1].lower() for x in q]
if not q[1]:
q[1] = 'oeb'
q = tuple(q)
if q in self.cache:
ans = [x for x in self.cache[q] if x.startswith(self.prefix)]
else:
from calibre.ebooks.conversion.cli import create_option_parser
from calibre.utils.logging import Log
log = Log()
log.outputs = []
ans = []
if not self.prefix or self.prefix.startswith('-'):
try:
parser, _ = create_option_parser(self.words[:3], log)
ans += list(get_opts_from_parser(parser, self.prefix))
except:
pass
if self.previous.startswith('-'):
ans += list(files_and_dirs(self.prefix, None))
send(ans)示例4: get_metadata
def get_metadata(stream):
from calibre.ebooks.metadata import MetaInformation
from calibre.ptempfile import TemporaryDirectory
from calibre.ebooks.mobi.reader.headers import MetadataHeader
from calibre.ebooks.mobi.reader.mobi6 import MobiReader
from calibre.utils.magick.draw import save_cover_data_to
from calibre import CurrentDir
stream.seek(0)
try:
raw = stream.read(3)
except:
raw = ''
stream.seek(0)
if raw == b'TPZ':
from calibre.ebooks.metadata.topaz import get_metadata
return get_metadata(stream)
from calibre.utils.logging import Log
log = Log()
try:
mi = MetaInformation(os.path.basename(stream.name), [_('Unknown')])
except:
mi = MetaInformation(_('Unknown'), [_('Unknown')])
mh = MetadataHeader(stream, log)
if mh.title and mh.title != _('Unknown'):
mi.title = mh.title
if mh.exth is not None:
if mh.exth.mi is not None:
mi = mh.exth.mi
else:
size = 1024**3
if hasattr(stream, 'seek') and hasattr(stream, 'tell'):
pos = stream.tell()
stream.seek(0, 2)
size = stream.tell()
stream.seek(pos)
if size < 4*1024*1024:
with TemporaryDirectory('_mobi_meta_reader') as tdir:
with CurrentDir(tdir):
mr = MobiReader(stream, log)
parse_cache = {}
mr.extract_content(tdir, parse_cache)
if mr.embedded_mi is not None:
mi = mr.embedded_mi
if hasattr(mh.exth, 'cover_offset'):
cover_index = mh.first_image_index + mh.exth.cover_offset
data = mh.section_data(int(cover_index))
else:
try:
data = mh.section_data(mh.first_image_index)
except:
data = ''
if data and what(None, data) in {'jpg', 'jpeg', 'gif', 'png', 'bmp', 'webp'}:
try:
mi.cover_data = ('jpg', save_cover_data_to(data, 'cover.jpg', return_data=True))
except Exception:
log.exception('Failed to read MOBI cover')
return mi示例5: __init__
def __init__(self, files):
s = Stream()
self.log_stream = s.stream
log = Log()
log.outputs = [s]
ContainerBase.__init__(self, log=log)
self.mime_map = {k:self.guess_type(k) for k in files}
self.files = files示例6: setup_pipeline
def setup_pipeline(self, *args):
oidx = self.groups.currentIndex().row()
output_format = self.output_format
input_path = 'dummy.epub'
output_path = 'dummy.'+output_format
log = Log()
log.outputs = []
self.plumber = Plumber(input_path, output_path, log,
merge_plugin_recs=False)
def widget_factory(cls):
return cls(self.stack, self.plumber.get_option_by_name,
self.plumber.get_option_help, self.db)
self.setWindowTitle(_('Bulk Convert'))
lf = widget_factory(LookAndFeelWidget)
hw = widget_factory(HeuristicsWidget)
sr = widget_factory(SearchAndReplaceWidget)
ps = widget_factory(PageSetupWidget)
sd = widget_factory(StructureDetectionWidget)
toc = widget_factory(TOCWidget)
output_widget = None
name = self.plumber.output_plugin.name.lower().replace(' ', '_')
try:
output_widget = importlib.import_module(
'calibre.gui2.convert.'+name)
pw = output_widget.PluginWidget
pw.ICON = I('back.png')
pw.HELP = _('Options specific to the output format.')
output_widget = widget_factory(pw)
except ImportError:
pass
while True:
c = self.stack.currentWidget()
if not c: break
self.stack.removeWidget(c)
widgets = [lf, hw, ps, sd, toc, sr]
if output_widget is not None:
widgets.append(output_widget)
for w in widgets:
self.stack.addWidget(w)
self.connect(w, SIGNAL('set_help(PyQt_PyObject)'),
self.help.setPlainText)
self._groups_model = GroupModel(widgets)
self.groups.setModel(self._groups_model)
idx = oidx if -1 < oidx < self._groups_model.rowCount() else 0
self.groups.setCurrentIndex(self._groups_model.index(idx))
self.stack.setCurrentIndex(idx)
try:
shutil.rmtree(self.plumber.archive_input_tdir, ignore_errors=True)
except:
pass示例7: setup_pipeline
def setup_pipeline(self, *args):
oidx = self.groups.currentIndex().row()
output_format = self.output_format
input_path = 'dummy.epub'
output_path = 'dummy.'+output_format
log = Log()
log.outputs = []
self.plumber = Plumber(input_path, output_path, log,
merge_plugin_recs=False)
def widget_factory(cls):
return cls(self.stack, self.plumber.get_option_by_name,
self.plumber.get_option_help, self.db)
self.setWindowTitle(_('Bulk Convert'))
lf = widget_factory(LookAndFeelWidget)
hw = widget_factory(HeuristicsWidget)
sr = widget_factory(SearchAndReplaceWidget)
ps = widget_factory(PageSetupWidget)
sd = widget_factory(StructureDetectionWidget)
toc = widget_factory(TOCWidget)
toc.manually_fine_tune_toc.hide()
output_widget = self.plumber.output_plugin.gui_configuration_widget(
self.stack, self.plumber.get_option_by_name,
self.plumber.get_option_help, self.db)
while True:
c = self.stack.currentWidget()
if not c:
break
self.stack.removeWidget(c)
widgets = [lf, hw, ps, sd, toc, sr]
if output_widget is not None:
widgets.append(output_widget)
for w in widgets:
self.stack.addWidget(w)
self.connect(w, SIGNAL('set_help(PyQt_PyObject)'),
self.help.setPlainText)
self._groups_model = GroupModel(widgets)
self.groups.setModel(self._groups_model)
idx = oidx if -1 < oidx < self._groups_model.rowCount() else 0
self.groups.setCurrentIndex(self._groups_model.index(idx))
self.stack.setCurrentIndex(idx)
try:
shutil.rmtree(self.plumber.archive_input_tdir, ignore_errors=True)
except:
pass示例8: genesis
def genesis(self, gui):
log = Log()
log.outputs = []
self.plumber = Plumber('dummy.epub', 'dummy.epub', log, dummy=True,
merge_plugin_recs=False)
def widget_factory(cls):
return cls(self, self.plumber.get_option_by_name,
self.plumber.get_option_help, None, None)
self.load_conversion_widgets()
widgets = list(map(widget_factory, self.conversion_widgets))
self.model = Model(widgets)
self.list.setModel(self.model)
for w in widgets:
w.changed_signal.connect(self.changed_signal)
self.stack.addWidget(w)
self.list.currentChanged = self.category_current_changed
self.list.setCurrentIndex(self.model.index(0))示例9: __init__
def __init__(self, path):
tmpdir = PersistentTemporaryDirectory("_kobo-driver-extended")
zf = zipfile.ZipFile(path)
zf.extractall(tmpdir)
self.root = os.path.abspath(tmpdir)
self.log = Log()
self.dirtied = set([])
self.cache = {}
self.mime_map = {}
print("Container:__init__:Got container path {0}".format(self.root))
if os.path.exists(os.path.join(self.root, 'mimetype')):
os.remove(os.path.join(self.root, 'mimetype'))
container_path = os.path.join(self.root, 'META-INF', 'container.xml')
if not os.path.exists(container_path):
raise InvalidEpub('No META-INF/container.xml in epub')
self.container = etree.fromstring(open(container_path, 'rb').read())
opf_files = self.container.xpath((r'child::ocf:rootfiles/ocf:rootfile[@media-type="{0}" and @full-path]'.format(guess_type('a.opf')[0])), namespaces = self.namespaces)
if not opf_files:
raise InvalidEpub('META-INF/container.xml contains no link to OPF file')
opf_path = os.path.join(self.root, *opf_files[0].get('full-path').split('/'))
if not os.path.exists(opf_path):
raise InvalidEpub('OPF file does not exist at location pointed to by META-INF/container.xml')
# Map of relative paths with / separators to absolute
# paths on filesystem with os separators
self.name_map = {}
for dirpath, dirnames, filenames in os.walk(self.root):
for f in filenames:
path = os.path.join(dirpath, f)
name = os.path.relpath(path, self.root).replace(os.sep, '/')
self.name_map[name] = path
self.mime_map[name] = guess_type(f)[0]
if path == opf_path:
self.opf_name = name
self.mime_map[name] = guess_type('a.opf')[0]
opf = self.opf
for item in opf.xpath('//opf:manifest/opf:item[@href and @media-type]', namespaces = self.namespaces):
href = unquote(item.get('href'))
item.set("href", href)
self.mime_map[self.href_to_name(href, os.path.dirname(self.opf_name).replace(os.sep, '/'))] = item.get('media-type')
self.set(self.opf_name, opf)示例10: main
def main(args=None):
parser = option_parser()
opts, args = parser.parse_args(args or sys.argv[1:])
log = Log(level=Log.DEBUG if opts.verbose else Log.INFO)
if not args:
parser.print_help()
log.error(_('You must provide the input file to polish'))
raise SystemExit(1)
if len(args) > 2:
parser.print_help()
log.error(_('Unknown extra arguments'))
raise SystemExit(1)
if len(args) == 1:
inbook = args[0]
base, ext = inbook.rpartition('.')[0::2]
outbook = base + '_polished.' + ext
else:
inbook, outbook = args
popts = ALL_OPTS.copy()
for k, v in popts.iteritems():
popts[k] = getattr(opts, k, None)
O = namedtuple('Options', ' '.join(popts.iterkeys()))
popts = O(**popts)
report = []
if not tuple(filter(None, (getattr(popts, name) for name in ALL_OPTS))):
parser.print_help()
log.error(_('You must specify at least one action to perform'))
raise SystemExit(1)
polish({inbook:outbook}, popts, log, report.append)
log('')
log(REPORT)
for msg in report:
log(msg)
log('Output written to:', outbook)示例11: main
def main(args=sys.argv):
log = Log()
parser, plumber = create_option_parser(args, log)
opts, leftover_args = parser.parse_args(args)
if len(leftover_args) > 3:
log.error('Extra arguments not understood:', u', '.join(leftover_args[3:]))
return 1
for x in ('read_metadata_from_opf', 'cover'):
if getattr(opts, x, None) is not None:
setattr(opts, x, abspath(getattr(opts, x)))
if opts.search_replace:
opts.search_replace = read_sr_patterns(opts.search_replace, log)
if opts.transform_css_rules:
from calibre.ebooks.css_transform_rules import import_rules, validate_rule
with open(opts.transform_css_rules, 'rb') as tcr:
opts.transform_css_rules = rules = list(import_rules(tcr.read()))
for rule in rules:
title, msg = validate_rule(rule)
if title and msg:
log.error('Failed to parse CSS transform rules')
log.error(title)
log.error(msg)
return 1
recommendations = [(n.dest, getattr(opts, n.dest),
OptionRecommendation.HIGH)
for n in parser.options_iter()
if n.dest]
plumber.merge_ui_recommendations(recommendations)
try:
plumber.run()
except ConversionUserFeedBack as e:
ll = {'info': log.info, 'warn': log.warn,
'error':log.error}.get(e.level, log.info)
ll(e.title)
if e.det_msg:
log.debug(e.detmsg)
ll(e.msg)
raise SystemExit(1)
log(_('Output saved to'), ' ', plumber.output)
return 0示例12: get_metadata
def get_metadata(stream):
from calibre.ebooks.metadata import MetaInformation
from calibre.ptempfile import TemporaryDirectory
from calibre.ebooks.mobi.reader.headers import MetadataHeader
from calibre.ebooks.mobi.reader.mobi6 import MobiReader
from calibre import CurrentDir
try:
from PIL import Image as PILImage
PILImage
except ImportError:
import Image as PILImage
stream.seek(0)
try:
raw = stream.read(3)
except:
raw = ''
stream.seek(0)
if raw == b'TPZ':
from calibre.ebooks.metadata.topaz import get_metadata
return get_metadata(stream)
from calibre.utils.logging import Log
log = Log()
try:
mi = MetaInformation(os.path.basename(stream.name), [_('Unknown')])
except:
mi = MetaInformation(_('Unknown'), [_('Unknown')])
mh = MetadataHeader(stream, log)
if mh.title and mh.title != _('Unknown'):
mi.title = mh.title
if mh.exth is not None:
if mh.exth.mi is not None:
mi = mh.exth.mi
else:
size = 1024**3
if hasattr(stream, 'seek') and hasattr(stream, 'tell'):
pos = stream.tell()
stream.seek(0, 2)
size = stream.tell()
stream.seek(pos)
if size < 4*1024*1024:
with TemporaryDirectory('_mobi_meta_reader') as tdir:
with CurrentDir(tdir):
mr = MobiReader(stream, log)
parse_cache = {}
mr.extract_content(tdir, parse_cache)
if mr.embedded_mi is not None:
mi = mr.embedded_mi
if hasattr(mh.exth, 'cover_offset'):
cover_index = mh.first_image_index + mh.exth.cover_offset
data = mh.section_data(int(cover_index))
else:
try:
data = mh.section_data(mh.first_image_index)
except:
data = ''
buf = cStringIO.StringIO(data)
try:
im = PILImage.open(buf)
except:
log.exception('Failed to read MOBI cover')
else:
obuf = cStringIO.StringIO()
im.convert('RGB').save(obuf, format='JPEG')
mi.cover_data = ('jpg', obuf.getvalue())
return mi示例13: Container
class Container(object):
META_INF = {
'container.xml' : True,
'manifest.xml' : False,
'encryption.xml' : False,
'metadata.xml' : False,
'signatures.xml' : False,
'rights.xml' : False,
}
acceptable_encryption_algorithms = (
'http://ns.adobe.com/pdf/enc#RC'
)
namespaces = {
'opf': 'http://www.idpf.org/2007/opf',
'ocf': 'urn:oasis:names:tc:opendocument:xmlns:container',
'ncx': 'http://www.daisy.org/z3986/2005/ncx/',
'dc': 'http://purl.org/dc/elements/1.1/',
'xhtml': 'http://www.w3.org/1999/xhtml',
'enc': 'http://www.w3.org/2001/04/xmlenc#',
'deenc': 'http://ns.adobe.com/digitaleditions/enc',
'xml': 'http://www.w3.org/XML/1998/namespace'
}
OPF_MIMETYPE = 'application/oebps-package+xml'
NCX_MIMETYPE = "application/x-dtbncx+xml"
def __init__(self, path):
tmpdir = PersistentTemporaryDirectory("_kobo-driver-extended")
zf = zipfile.ZipFile(path)
zf.extractall(tmpdir)
self.root = os.path.abspath(tmpdir)
self.log = Log()
self.dirtied = set([])
self.cache = {}
self.mime_map = {}
print("Container:__init__:Got container path {0}".format(self.root))
if os.path.exists(os.path.join(self.root, 'mimetype')):
os.remove(os.path.join(self.root, 'mimetype'))
container_path = os.path.join(self.root, 'META-INF', 'container.xml')
if not os.path.exists(container_path):
raise InvalidEpub('No META-INF/container.xml in epub')
self.container = etree.fromstring(open(container_path, 'rb').read())
opf_files = self.container.xpath((r'child::ocf:rootfiles/ocf:rootfile[@media-type="{0}" and @full-path]'.format(guess_type('a.opf')[0])), namespaces = self.namespaces)
if not opf_files:
raise InvalidEpub('META-INF/container.xml contains no link to OPF file')
opf_path = os.path.join(self.root, *opf_files[0].get('full-path').split('/'))
if not os.path.exists(opf_path):
raise InvalidEpub('OPF file does not exist at location pointed to by META-INF/container.xml')
# Map of relative paths with / separators to absolute
# paths on filesystem with os separators
self.name_map = {}
for dirpath, dirnames, filenames in os.walk(self.root):
for f in filenames:
path = os.path.join(dirpath, f)
name = os.path.relpath(path, self.root).replace(os.sep, '/')
self.name_map[name] = path
self.mime_map[name] = guess_type(f)[0]
if path == opf_path:
self.opf_name = name
self.mime_map[name] = guess_type('a.opf')[0]
opf = self.opf
for item in opf.xpath('//opf:manifest/opf:item[@href and @media-type]', namespaces = self.namespaces):
href = unquote(item.get('href'))
item.set("href", href)
self.mime_map[self.href_to_name(href, os.path.dirname(self.opf_name).replace(os.sep, '/'))] = item.get('media-type')
self.set(self.opf_name, opf)
def get_html_names(self):
"""A generator function that yields only HTML file names from
the ePub.
"""
for node in self.opf.xpath('//opf:manifest/opf:item[@href and @media-type]', namespaces = self.namespaces):
if node.get("media-type") in HTML_MIMETYPES:
href = os.path.join(os.path.dirname(self.opf_name), node.get("href"))
href = os.path.normpath(href).replace(os.sep, '/')
yield href
@property
def is_drm_encumbered(self):
"""Determine if the ePub container is encumbered with Digital
Restrictions Management.
This method looks for the 'encryption.xml' file which denotes an
ePub encumbered by Digital Restrictions Management. DRM-encumbered
files cannot be edited.
"""
is_encumbered = False
if 'META-INF/encryption.xml' in self.name_map:
try:
xml = self.get('META-INF/encryption.xml')
if xml is None:
return True # If encryption.xml can't be parsed, assume its presence means an encumbered file
#.........这里部分代码省略.........
示例14: Container
class Container(object):
META_INF = {
'container.xml' : True,
'manifest.xml' : False,
'encryption.xml' : False,
'metadata.xml' : False,
'signatures.xml' : False,
'rights.xml' : False,
}
OCF_NS = 'urn:oasis:names:tc:opendocument:xmlns:container'
OPF_NS = 'http://www.idpf.org/2007/opf'
NCX_NS = "http://www.daisy.org/z3986/2005/ncx/"
DC_NS = "http://purl.org/dc/elements/1.1/"
XHTML_NS = "http://www.w3.org/1999/xhtml"
OPF_MIMETYPE = 'application/oebps-package+xml'
NCX_MIMETYPE = "application/x-dtbncx+xml"
def __init__(self, path):
tmpdir = PersistentTemporaryDirectory("_kobo-driver-extended")
zf = zipfile.ZipFile(path)
zf.extractall(tmpdir)
self.root = os.path.abspath(tmpdir)
self.log = Log()
self.dirtied = set([])
self.cache = {}
self.mime_map = {}
print("Got container path {0}".format(self.root))
if os.path.exists(os.path.join(self.root, 'mimetype')):
os.remove(os.path.join(self.root, 'mimetype'))
container_path = os.path.join(self.root, 'META-INF', 'container.xml')
if not os.path.exists(container_path):
raise InvalidEpub('No META-INF/container.xml in epub')
self.container = etree.fromstring(open(container_path, 'rb').read())
opf_files = self.container.xpath((r'child::ocf:rootfiles/ocf:rootfile[@media-type="{0}" and @full-path]'.format(guess_type('a.opf')[0])), namespaces = {'ocf': self.OCF_NS})
if not opf_files:
raise InvalidEpub('META-INF/container.xml contains no link to OPF file')
opf_path = os.path.join(self.root, *opf_files[0].get('full-path').split('/'))
if not os.path.exists(opf_path):
raise InvalidEpub('OPF file does not exist at location pointed to by META-INF/container.xml')
# Map of relative paths with / separators to absolute
# paths on filesystem with os separators
self.name_map = {}
for dirpath, dirnames, filenames in os.walk(self.root):
for f in filenames:
path = os.path.join(dirpath, f)
name = os.path.relpath(path, self.root).replace(os.sep, '/')
self.name_map[name] = path
if path == opf_path:
self.opf_name = name
self.mime_map[name] = guess_type('a.opf')[0]
for item in self.opf.xpath('//opf:manifest/opf:item[@href and @media-type]', namespaces = {'opf': self.OPF_NS}):
href = item.get('href')
self.mime_map[self.href_to_name(href, posixpath.dirname(self.opf_name))] = item.get('media-type')
def get_html_names(self):
"""A generator function that yields only HTML file names from
the ePub.
"""
for name in self.name_map.keys():
ext = name[name.lower().rfind('.'):].lower()
if ext in HTML_EXTENSIONS:
yield name
def is_drm_encrypted(self):
"""Determine if the ePub container is encumbered with Digital
Restrictions Management.
This method looks for the 'encryption.xml' file which denotes an
ePub encumbered by Digital Restrictions Management. DRM-encumbered
files cannot be edited.
"""
if 'META-INF/encryption.xml' in self.name_map:
try:
xml = self.get('META-INF/encryption.xml')
if not xml:
return True # Even if encryption.xml can't be parsed, assume its presence means an encumbered file
for elem in xml.xpath('.//*[contains(name(), "EncryptionMethod")]'):
alg = elem.get('Algorithm')
return alg != 'http://ns.adobe.com/pdf/enc#RC'
except:
self.log.error("Could not parse encryption.xml")
return True # If encryption.xml is present, assume the file is encumbered
return False
def manifest_worthy_names(self):
for name in self.name_map:
if name.endswith('.opf'): continue
if name.startswith('META-INF') and posixpath.basename(name) in self.META_INF:
continue
yield name
def delete_name(self, name):
self.mime_map.pop(name, None)
#.........这里部分代码省略.........