B&N tools by i♥cabbages
This commit is contained in:
i♥cabbages
Apprentice Alf
parent
16fbfcdba9
commit
d1d2bfcb1e
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@ -0,0 +1,235 @@
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#! /usr/bin/python
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# ignobleepub.pyw, version 1-rc2
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# To run this program install Python 2.6 from <http://www.python.org/download/>
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# and PyCrypto from http://www.voidspace.org.uk/python/modules.shtml#pycrypto
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# (make sure to install the version for Python 2.6). Save this script file as
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# ignobleepub.pyw and double-click on it to run it.
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# Revision history:
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# 1 - Initial release
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"""
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Decrypt Barnes & Noble ADEPT encrypted EPUB books.
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"""
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from __future__ import with_statement
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__license__ = 'GPL v3'
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import sys
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import os
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import zlib
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import zipfile
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from zipfile import ZipFile, ZIP_STORED, ZIP_DEFLATED
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from contextlib import closing
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import xml.etree.ElementTree as etree
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import Tkinter
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import Tkconstants
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import tkFileDialog
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import tkMessageBox
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try:
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from Crypto.Cipher import AES
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except ImportError:
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AES = None
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META_NAMES = ('mimetype', 'META-INF/rights.xml', 'META-INF/encryption.xml')
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NSMAP = {'adept': 'http://ns.adobe.com/adept',
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'enc': 'http://www.w3.org/2001/04/xmlenc#'}
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class ZipInfo(zipfile.ZipInfo):
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def __init__(self, *args, **kwargs):
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if 'compress_type' in kwargs:
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compress_type = kwargs.pop('compress_type')
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super(ZipInfo, self).__init__(*args, **kwargs)
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self.compress_type = compress_type
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class Decryptor(object):
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def __init__(self, bookkey, encryption):
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enc = lambda tag: '{%s}%s' % (NSMAP['enc'], tag)
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self._aes = AES.new(bookkey, AES.MODE_CBC)
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encryption = etree.fromstring(encryption)
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self._encrypted = encrypted = set()
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expr = './%s/%s/%s' % (enc('EncryptedData'), enc('CipherData'),
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enc('CipherReference'))
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for elem in encryption.findall(expr):
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path = elem.get('URI', None)
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if path is not None:
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encrypted.add(path)
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def decompress(self, bytes):
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dc = zlib.decompressobj(-15)
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bytes = dc.decompress(bytes)
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ex = dc.decompress('Z') + dc.flush()
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if ex:
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bytes = bytes + ex
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return bytes
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def decrypt(self, path, data):
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if path in self._encrypted:
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data = self._aes.decrypt(data)[16:]
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data = data[:-ord(data[-1])]
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data = self.decompress(data)
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return data
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class ADEPTError(Exception):
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pass
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def cli_main(argv=sys.argv):
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progname = os.path.basename(argv[0])
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if AES is None:
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print "%s: This script requires PyCrypto, which must be installed " \
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"separately. Read the top-of-script comment for details." % \
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(progname,)
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return 1
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if len(argv) != 4:
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print "usage: %s KEYFILE INBOOK OUTBOOK" % (progname,)
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return 1
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keypath, inpath, outpath = argv[1:]
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with open(keypath, 'rb') as f:
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keyb64 = f.read()
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key = keyb64.decode('base64')[:16]
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aes = AES.new(key, AES.MODE_CBC)
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with closing(ZipFile(open(inpath, 'rb'))) as inf:
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namelist = set(inf.namelist())
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if 'META-INF/rights.xml' not in namelist or \
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'META-INF/encryption.xml' not in namelist:
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raise ADEPTError('%s: not an B&N ADEPT EPUB' % (inpath,))
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for name in META_NAMES:
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namelist.remove(name)
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rights = etree.fromstring(inf.read('META-INF/rights.xml'))
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adept = lambda tag: '{%s}%s' % (NSMAP['adept'], tag)
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expr = './/%s' % (adept('encryptedKey'),)
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bookkey = ''.join(rights.findtext(expr))
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bookkey = aes.decrypt(bookkey.decode('base64'))
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bookkey = bookkey[:-ord(bookkey[-1])]
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encryption = inf.read('META-INF/encryption.xml')
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decryptor = Decryptor(bookkey[-16:], encryption)
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kwds = dict(compression=ZIP_DEFLATED, allowZip64=False)
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with closing(ZipFile(open(outpath, 'wb'), 'w', **kwds)) as outf:
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zi = ZipInfo('mimetype', compress_type=ZIP_STORED)
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outf.writestr(zi, inf.read('mimetype'))
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for path in namelist:
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data = inf.read(path)
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outf.writestr(path, decryptor.decrypt(path, data))
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return 0
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class DecryptionDialog(Tkinter.Frame):
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def __init__(self, root):
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Tkinter.Frame.__init__(self, root, border=5)
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self.status = Tkinter.Label(self, text='Select files for decryption')
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self.status.pack(fill=Tkconstants.X, expand=1)
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body = Tkinter.Frame(self)
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body.pack(fill=Tkconstants.X, expand=1)
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sticky = Tkconstants.E + Tkconstants.W
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body.grid_columnconfigure(1, weight=2)
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Tkinter.Label(body, text='Key file').grid(row=0)
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self.keypath = Tkinter.Entry(body, width=30)
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self.keypath.grid(row=0, column=1, sticky=sticky)
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if os.path.exists('bnepubkey.b64'):
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self.keypath.insert(0, 'bnepubkey.b64')
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button = Tkinter.Button(body, text="...", command=self.get_keypath)
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button.grid(row=0, column=2)
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Tkinter.Label(body, text='Input file').grid(row=1)
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self.inpath = Tkinter.Entry(body, width=30)
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self.inpath.grid(row=1, column=1, sticky=sticky)
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button = Tkinter.Button(body, text="...", command=self.get_inpath)
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button.grid(row=1, column=2)
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Tkinter.Label(body, text='Output file').grid(row=2)
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self.outpath = Tkinter.Entry(body, width=30)
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self.outpath.grid(row=2, column=1, sticky=sticky)
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button = Tkinter.Button(body, text="...", command=self.get_outpath)
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button.grid(row=2, column=2)
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buttons = Tkinter.Frame(self)
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buttons.pack()
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botton = Tkinter.Button(
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buttons, text="Decrypt", width=10, command=self.decrypt)
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botton.pack(side=Tkconstants.LEFT)
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Tkinter.Frame(buttons, width=10).pack(side=Tkconstants.LEFT)
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button = Tkinter.Button(
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buttons, text="Quit", width=10, command=self.quit)
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button.pack(side=Tkconstants.RIGHT)
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def get_keypath(self):
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keypath = tkFileDialog.askopenfilename(
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parent=None, title='Select B&N EPUB key file',
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defaultextension='.b64',
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filetypes=[('base64-encoded files', '.b64'),
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('All Files', '.*')])
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if keypath:
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keypath = os.path.normpath(keypath)
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self.keypath.delete(0, Tkconstants.END)
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self.keypath.insert(0, keypath)
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return
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def get_inpath(self):
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inpath = tkFileDialog.askopenfilename(
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parent=None, title='Select B&N-encrypted EPUB file to decrypt',
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defaultextension='.epub', filetypes=[('EPUB files', '.epub'),
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('All files', '.*')])
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if inpath:
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inpath = os.path.normpath(inpath)
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self.inpath.delete(0, Tkconstants.END)
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self.inpath.insert(0, inpath)
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return
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def get_outpath(self):
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outpath = tkFileDialog.asksaveasfilename(
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parent=None, title='Select unencrypted EPUB file to produce',
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defaultextension='.epub', filetypes=[('EPUB files', '.epub'),
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('All files', '.*')])
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if outpath:
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outpath = os.path.normpath(outpath)
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self.outpath.delete(0, Tkconstants.END)
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self.outpath.insert(0, outpath)
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return
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def decrypt(self):
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keypath = self.keypath.get()
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inpath = self.inpath.get()
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outpath = self.outpath.get()
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if not keypath or not os.path.exists(keypath):
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self.status['text'] = 'Specified key file does not exist'
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return
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if not inpath or not os.path.exists(inpath):
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self.status['text'] = 'Specified input file does not exist'
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return
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if not outpath:
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self.status['text'] = 'Output file not specified'
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return
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if inpath == outpath:
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self.status['text'] = 'Must have different input and output files'
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return
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argv = [sys.argv[0], keypath, inpath, outpath]
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self.status['text'] = 'Decrypting...'
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try:
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cli_main(argv)
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except Exception, e:
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self.status['text'] = 'Error: ' + str(e)
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return
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self.status['text'] = 'File successfully decrypted'
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def gui_main():
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root = Tkinter.Tk()
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if AES is None:
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root.withdraw()
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tkMessageBox.showerror(
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"Ignoble EPUB Decrypter",
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"This script requires PyCrypto, which must be installed "
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"separately. Read the top-of-script comment for details.")
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return 1
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root.title('Ignoble EPUB Decrypter')
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root.resizable(True, False)
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root.minsize(300, 0)
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DecryptionDialog(root).pack(fill=Tkconstants.X, expand=1)
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root.mainloop()
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return 0
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if __name__ == '__main__':
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if len(sys.argv) > 1:
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sys.exit(cli_main())
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sys.exit(gui_main())
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@ -0,0 +1,112 @@
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#! /usr/bin/python
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# ignoblekey.pyw, version 2
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# To run this program install Python 2.6 from <http://www.python.org/download/>
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# Save this script file as ignoblekey.pyw and double-click on it to run it.
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# Revision history:
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# 1 - Initial release
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# 2 - Add some missing code
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"""
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Retrieve B&N DesktopReader EPUB user AES key.
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"""
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from __future__ import with_statement
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__license__ = 'GPL v3'
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import sys
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import os
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import binascii
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import glob
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import Tkinter
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import Tkconstants
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import tkMessageBox
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import traceback
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BN_KEY_KEY = 'uhk00000000'
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BN_APPDATA_DIR = r'Barnes & Noble\DesktopReader'
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class IgnobleError(Exception):
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pass
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def retrieve_key(inpath, outpath):
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# The B&N DesktopReader 'ClientAPI' file is just a sqlite3 DB. Requiring
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# users to install sqlite3 and bindings seems like overkill for retrieving
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# one value, so we go in hot and dirty.
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with open(inpath, 'rb') as f:
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data = f.read()
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if BN_KEY_KEY not in data:
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raise IgnobleError('B&N user key not found; unexpected DB format?')
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index = data.rindex(BN_KEY_KEY) + len(BN_KEY_KEY) + 1
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data = data[index:index + 40]
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for i in xrange(20, len(data)):
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try:
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keyb64 = data[:i]
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if len(keyb64.decode('base64')) == 20:
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break
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except binascii.Error:
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pass
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else:
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raise IgnobleError('Problem decoding key; unexpected DB format?')
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with open(outpath, 'wb') as f:
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f.write(keyb64 + '\n')
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def cli_main(argv=sys.argv):
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progname = os.path.basename(argv[0])
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args = argv[1:]
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if len(args) != 2:
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sys.stderr.write("USAGE: %s CLIENTDB KEYFILE" % (progname,))
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return 1
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inpath, outpath = args
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retrieve_key(inpath, outpath)
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return 0
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def find_bnclientdb_path():
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appdata = os.environ['APPDATA']
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bndir = os.path.join(appdata, BN_APPDATA_DIR)
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if not os.path.isdir(bndir):
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raise IgnobleError('Could not locate B&N Reader installation')
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dbpath = glob.glob(os.path.join(bndir, 'ClientAPI_*.db'))
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if len(dbpath) == 0:
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raise IgnobleError('Problem locating B&N Reader DB')
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return sorted(dbpath)[-1]
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class ExceptionDialog(Tkinter.Frame):
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def __init__(self, root, text):
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Tkinter.Frame.__init__(self, root, border=5)
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label = Tkinter.Label(self, text="Unexpected error:",
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anchor=Tkconstants.W, justify=Tkconstants.LEFT)
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label.pack(fill=Tkconstants.X, expand=0)
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self.text = Tkinter.Text(self)
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self.text.pack(fill=Tkconstants.BOTH, expand=1)
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self.text.insert(Tkconstants.END, text)
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def gui_main(argv=sys.argv):
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root = Tkinter.Tk()
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root.withdraw()
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progname = os.path.basename(argv[0])
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keypath = 'bnepubkey.b64'
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try:
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dbpath = find_bnclientdb_path()
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retrieve_key(dbpath, keypath)
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except IgnobleError, e:
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tkMessageBox.showerror("Ignoble Key", "Error: " + str(e))
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return 1
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except Exception:
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root.wm_state('normal')
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root.title('Ignoble Key')
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text = traceback.format_exc()
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ExceptionDialog(root, text).pack(fill=Tkconstants.BOTH, expand=1)
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root.mainloop()
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return 1
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tkMessageBox.showinfo(
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"Ignoble Key", "Key successfully retrieved to %s" % (keypath))
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return 0
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if __name__ == '__main__':
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if len(sys.argv) > 1:
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sys.exit(cli_main())
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sys.exit(gui_main())
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@ -0,0 +1,147 @@
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#! /usr/bin/python
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# ignoblekeygen.pyw, version 1
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# To run this program install Python 2.6 from <http://www.python.org/download/>
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# and PyCrypto from http://www.voidspace.org.uk/python/modules.shtml#pycrypto
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# (make sure to install the version for Python 2.6). Save this script file as
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# ignoblekeygen.pyw and double-click on it to run it.
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# Revision history:
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# 1 - Initial release
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"""
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Generate Barnes & Noble EPUB user key from name and credit card number.
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"""
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from __future__ import with_statement
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__license__ = 'GPL v3'
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import sys
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import os
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import hashlib
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import Tkinter
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import Tkconstants
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import tkFileDialog
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import tkMessageBox
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try:
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from Crypto.Cipher import AES
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except ImportError:
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AES = None
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def normalize_name(name):
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return ''.join(x for x in name.lower() if x != ' ')
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def generate_keyfile(name, ccn, outpath):
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name = normalize_name(name) + '\x00'
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ccn = ccn + '\x00'
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name_sha = hashlib.sha1(name).digest()[:16]
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ccn_sha = hashlib.sha1(ccn).digest()[:16]
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both_sha = hashlib.sha1(name + ccn).digest()
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aes = AES.new(ccn_sha, AES.MODE_CBC, name_sha)
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crypt = aes.encrypt(both_sha + ('\x0c' * 0x0c))
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userkey = hashlib.sha1(crypt).digest()
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with open(outpath, 'wb') as f:
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f.write(userkey.encode('base64'))
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return userkey
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def cli_main(argv=sys.argv):
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progname = os.path.basename(argv[0])
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if AES is None:
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print "%s: This script requires PyCrypto, which must be installed " \
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"separately. Read the top-of-script comment for details." % \
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(progname,)
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return 1
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if len(argv) != 4:
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print "usage: %s NAME CC# OUTFILE" % (progname,)
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return 1
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name, ccn, outpath = argv[1:]
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generate_keyfile(name, ccn, outpath)
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return 0
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class DecryptionDialog(Tkinter.Frame):
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def __init__(self, root):
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Tkinter.Frame.__init__(self, root, border=5)
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self.status = Tkinter.Label(self, text='Enter parameters')
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self.status.pack(fill=Tkconstants.X, expand=1)
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body = Tkinter.Frame(self)
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body.pack(fill=Tkconstants.X, expand=1)
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sticky = Tkconstants.E + Tkconstants.W
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body.grid_columnconfigure(1, weight=2)
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Tkinter.Label(body, text='Name').grid(row=1)
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self.name = Tkinter.Entry(body, width=30)
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self.name.grid(row=1, column=1, sticky=sticky)
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Tkinter.Label(body, text='CC#').grid(row=2)
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self.ccn = Tkinter.Entry(body, width=30)
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self.ccn.grid(row=2, column=1, sticky=sticky)
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Tkinter.Label(body, text='Output file').grid(row=0)
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self.keypath = Tkinter.Entry(body, width=30)
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self.keypath.grid(row=0, column=1, sticky=sticky)
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self.keypath.insert(0, 'bnepubkey.b64')
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button = Tkinter.Button(body, text="...", command=self.get_keypath)
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button.grid(row=0, column=2)
|
||||
buttons = Tkinter.Frame(self)
|
||||
buttons.pack()
|
||||
botton = Tkinter.Button(
|
||||
buttons, text="Generate", width=10, command=self.generate)
|
||||
botton.pack(side=Tkconstants.LEFT)
|
||||
Tkinter.Frame(buttons, width=10).pack(side=Tkconstants.LEFT)
|
||||
button = Tkinter.Button(
|
||||
buttons, text="Quit", width=10, command=self.quit)
|
||||
button.pack(side=Tkconstants.RIGHT)
|
||||
|
||||
def get_keypath(self):
|
||||
keypath = tkFileDialog.asksaveasfilename(
|
||||
parent=None, title='Select B&N EPUB key file to produce',
|
||||
defaultextension='.b64',
|
||||
filetypes=[('base64-encoded files', '.b64'),
|
||||
('All Files', '.*')])
|
||||
if keypath:
|
||||
keypath = os.path.normpath(keypath)
|
||||
self.keypath.delete(0, Tkconstants.END)
|
||||
self.keypath.insert(0, keypath)
|
||||
return
|
||||
|
||||
def generate(self):
|
||||
name = self.name.get()
|
||||
ccn = self.ccn.get()
|
||||
keypath = self.keypath.get()
|
||||
if not name:
|
||||
self.status['text'] = 'Name not specified'
|
||||
return
|
||||
if not ccn:
|
||||
self.status['text'] = 'Credit card number not specified'
|
||||
return
|
||||
if not keypath:
|
||||
self.status['text'] = 'Output keyfile path not specified'
|
||||
return
|
||||
self.status['text'] = 'Generating...'
|
||||
try:
|
||||
generate_keyfile(name, ccn, keypath)
|
||||
except Exception, e:
|
||||
self.status['text'] = 'Error: ' + str(e)
|
||||
return
|
||||
self.status['text'] = 'Keyfile successfully generated'
|
||||
|
||||
def gui_main():
|
||||
root = Tkinter.Tk()
|
||||
if AES is None:
|
||||
root.withdraw()
|
||||
tkMessageBox.showerror(
|
||||
"Ignoble EPUB Keyfile Generator",
|
||||
"This script requires PyCrypto, which must be installed "
|
||||
"separately. Read the top-of-script comment for details.")
|
||||
return 1
|
||||
root.title('Ignoble EPUB Keyfile Generator')
|
||||
root.resizable(True, False)
|
||||
root.minsize(300, 0)
|
||||
DecryptionDialog(root).pack(fill=Tkconstants.X, expand=1)
|
||||
root.mainloop()
|
||||
return 0
|
||||
|
||||
if __name__ == '__main__':
|
||||
if len(sys.argv) > 1:
|
||||
sys.exit(cli_main())
|
||||
sys.exit(gui_main())
|
||||
Loading…
Reference in New Issue