本文整理汇总了Python中zipfile.ZipInfo.internal_attr方法的典型用法代码示例。如果您正苦于以下问题：Python ZipInfo.internal_attr方法的具体用法？Python ZipInfo.internal_attr怎么用？Python ZipInfo.internal_attr使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类zipfile.ZipInfo的用法示例。
在下文中一共展示了ZipInfo.internal_attr方法的2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: decryptBook
# 需要导入模块: from zipfile import ZipInfo [as 别名]
# 或者: from zipfile.ZipInfo import internal_attr [as 别名]
def decryptBook(userkey, inpath, outpath):
if AES is None:
raise ADEPTError(u"PyCrypto or OpenSSL must be installed.")
rsa = RSA(userkey)
with closing(ZipFile(open(inpath, 'rb'))) as inf:
namelist = set(inf.namelist())
if 'META-INF/rights.xml' not in namelist or \
'META-INF/encryption.xml' not in namelist:
print u"{0:s} is DRM-free.".format(os.path.basename(inpath))
return 1
for name in META_NAMES:
namelist.remove(name)
try:
rights = etree.fromstring(inf.read('META-INF/rights.xml'))
adept = lambda tag: '{%s}%s' % (NSMAP['adept'], tag)
expr = './/%s' % (adept('encryptedKey'),)
bookkey = ''.join(rights.findtext(expr))
if len(bookkey) != 172:
print u"{0:s} is not a secure Adobe Adept ePub.".format(os.path.basename(inpath))
return 1
bookkey = rsa.decrypt(bookkey.decode('base64'))
# Padded as per RSAES-PKCS1-v1_5
if bookkey[-17] != '\x00':
print u"Could not decrypt {0:s}. Wrong key".format(os.path.basename(inpath))
return 2
encryption = inf.read('META-INF/encryption.xml')
decryptor = Decryptor(bookkey[-16:], encryption)
kwds = dict(compression=ZIP_DEFLATED, allowZip64=False)
with closing(ZipFile(open(outpath, 'wb'), 'w', **kwds)) as outf:
zi = ZipInfo('mimetype')
zi.compress_type=ZIP_STORED
try:
# if the mimetype is present, get its info, including time-stamp
oldzi = inf.getinfo('mimetype')
# copy across fields to be preserved
zi.date_time = oldzi.date_time
zi.comment = oldzi.comment
zi.extra = oldzi.extra
zi.internal_attr = oldzi.internal_attr
# external attributes are dependent on the create system, so copy both.
zi.external_attr = oldzi.external_attr
zi.create_system = oldzi.create_system
except:
pass
outf.writestr(zi, inf.read('mimetype'))
for path in namelist:
data = inf.read(path)
zi = ZipInfo(path)
zi.compress_type=ZIP_DEFLATED
try:
# get the file info, including time-stamp
oldzi = inf.getinfo(path)
# copy across useful fields
zi.date_time = oldzi.date_time
zi.comment = oldzi.comment
zi.extra = oldzi.extra
zi.internal_attr = oldzi.internal_attr
# external attributes are dependent on the create system, so copy both.
zi.external_attr = oldzi.external_attr
zi.create_system = oldzi.create_system
except:
pass
outf.writestr(zi, decryptor.decrypt(path, data))
except:
print u"Could not decrypt {0:s} because of an exception:\n{1:s}".format(os.path.basename(inpath), traceback.format_exc())
return 2
return 0示例2: decryptBook
# 需要导入模块: from zipfile import ZipInfo [as 别名]
# 或者: from zipfile.ZipInfo import internal_attr [as 别名]
def decryptBook(keyb64, inpath, outpath):
if AES is None:
raise IGNOBLEError(u"PyCrypto or OpenSSL must be installed.")
key = keyb64.decode("base64")[:16]
aes = AES(key)
with closing(ZipFile(open(inpath, "rb"))) as inf:
namelist = set(inf.namelist())
if "META-INF/rights.xml" not in namelist or "META-INF/encryption.xml" not in namelist:
print u"{0:s} is DRM-free.".format(os.path.basename(inpath))
return 1
for name in META_NAMES:
namelist.remove(name)
try:
rights = etree.fromstring(inf.read("META-INF/rights.xml"))
adept = lambda tag: "{%s}%s" % (NSMAP["adept"], tag)
expr = ".//%s" % (adept("encryptedKey"),)
bookkey = "".join(rights.findtext(expr))
if len(bookkey) != 64:
print u"{0:s} is not a secure Barnes & Noble ePub.".format(os.path.basename(inpath))
return 1
bookkey = aes.decrypt(bookkey.decode("base64"))
bookkey = bookkey[: -ord(bookkey[-1])]
encryption = inf.read("META-INF/encryption.xml")
decryptor = Decryptor(bookkey[-16:], encryption)
kwds = dict(compression=ZIP_DEFLATED, allowZip64=False)
with closing(ZipFile(open(outpath, "wb"), "w", **kwds)) as outf:
zi = ZipInfo("mimetype")
zi.compress_type = ZIP_STORED
try:
# if the mimetype is present, get its info, including time-stamp
oldzi = inf.getinfo("mimetype")
# copy across fields to be preserved
zi.date_time = oldzi.date_time
zi.comment = oldzi.comment
zi.extra = oldzi.extra
zi.internal_attr = oldzi.internal_attr
# external attributes are dependent on the create system, so copy both.
zi.external_attr = oldzi.external_attr
zi.create_system = oldzi.create_system
except:
pass
outf.writestr(zi, inf.read("mimetype"))
for path in namelist:
data = inf.read(path)
zi = ZipInfo(path)
zi.compress_type = ZIP_DEFLATED
try:
# get the file info, including time-stamp
oldzi = inf.getinfo(path)
# copy across useful fields
zi.date_time = oldzi.date_time
zi.comment = oldzi.comment
zi.extra = oldzi.extra
zi.internal_attr = oldzi.internal_attr
# external attributes are dependent on the create system, so copy both.
zi.external_attr = oldzi.external_attr
zi.create_system = oldzi.create_system
except:
pass
outf.writestr(zi, decryptor.decrypt(path, data))
except:
print u"Could not decrypt {0:s} because of an exception:\n{1:s}".format(
os.path.basename(inpath), traceback.format_exc()
)
return 2
return 0