mirror of
https://github.com/noDRM/DeDRM_tools
synced 2024-12-24 21:58:54 +01:00
Cleanup
This commit is contained in:
parent
80f511ade9
commit
9c40b3ce5a
9 changed files with 24 additions and 463 deletions
4
.gitignore
vendored
4
.gitignore
vendored
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@ -3,3 +3,7 @@
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# local test data
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/user_data/
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# Cache
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/DeDRM_plugin/__pycache__
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/DeDRM_plugin/standalone/__pycache__
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@ -13,16 +13,16 @@ platforms.
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#### Install plugins
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- Download the DeDRM `.zip` archive from DeDRM_tools'
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[latest release](https://github.com/apprenticeharper/DeDRM_tools/releases/latest).
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[latest release](https://github.com/noDRM/DeDRM_tools/releases/latest).
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Then unzip it.
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- Add the DeDRM plugin to Calibre:
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```
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cd *the unzipped DeDRM_tools folder*
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calibre-customize --add DeDRM_calibre_plugin/DeDRM_plugin.zip
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calibre-customize --add DeDRM_plugin.zip
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```
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- Add the Obok plugin:
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```
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calibre-customize --add Obok_calibre_plugin/obok_plugin.zip
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calibre-customize --add Obok_plugin.zip
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```
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#### Enter your keys
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@ -46,7 +46,7 @@ p {margin-top: 0}
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<h3>Credits:</h3>
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<ul>
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<li>NoDRM for a bunch of updates and the Readium LCP support</li>
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<li>NoDRM for a bunch of updates and maintenance since November 2021, and the Readium LCP support</li>
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<li>The Dark Reverser for the Mobipocket and eReader scripts</li>
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<li>i♥cabbages for the Adobe Digital Editions scripts</li>
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<li>Skindle aka Bart Simpson for the Amazon Kindle for PC script</li>
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@ -994,11 +994,11 @@ class DeDRM(FileTypePlugin):
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decrypted_ebook = self.eReaderDecrypt(path_to_ebook)
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pass
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elif booktype == 'pdf':
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# Adobe PDF (hopefully)
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# Adobe PDF (hopefully) or LCP PDF
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decrypted_ebook = self.PDFDecrypt(path_to_ebook)
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pass
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elif booktype == 'epub':
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# Adobe Adept or B&N ePub
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# Adobe Adept, PassHash (B&N) or LCP ePub
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decrypted_ebook = self.ePubDecrypt(path_to_ebook)
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else:
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print("Unknown booktype {0}. Passing back to calibre unchanged".format(booktype))
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@ -1,3 +1,5 @@
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# I think this file is unused?
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import sys
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import tkinter
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import tkinter.constants
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@ -1,6 +1,9 @@
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#!/usr/bin/env python
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# vim:ts=4:sw=4:softtabstop=4:smarttab:expandtab
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# I think this file is unused?
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import tkinter
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import tkinter.constants
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@ -1,448 +0,0 @@
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# ignobleepub.py
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# Copyright © 2009-2020 by i♥cabbages, Apprentice Harper et al.
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# Released under the terms of the GNU General Public Licence, version 3
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# <http://www.gnu.org/licenses/>
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#
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# Revision history:
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# 1 - Initial release
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# 2 - Added OS X support by using OpenSSL when available
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# 3 - screen out improper key lengths to prevent segfaults on Linux
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# 3.1 - Allow Windows versions of libcrypto to be found
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# 3.2 - add support for encoding to 'utf-8' when building up list of files to decrypt from encryption.xml
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# 3.3 - On Windows try PyCrypto first, OpenSSL next
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# 3.4 - Modify interface to allow use with import
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# 3.5 - Fix for potential problem with PyCrypto
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# 3.6 - Revised to allow use in calibre plugins to eliminate need for duplicate code
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# 3.7 - Tweaked to match ineptepub more closely
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# 3.8 - Fixed to retain zip file metadata (e.g. file modification date)
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# 3.9 - moved unicode_argv call inside main for Windows DeDRM compatibility
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# 4.0 - Work if TkInter is missing
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# 4.1 - Import tkFileDialog, don't assume something else will import it.
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# 5.0 - Python 3 for calibre 5.0
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"""
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Decrypt Barnes & Noble encrypted ePub books.
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"""
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__license__ = 'GPL v3'
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__version__ = "5.0"
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import sys
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import os
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import traceback
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import base64
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import zlib
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import zipfile
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from zipfile import ZipInfo, 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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# Wrap a stream so that output gets flushed immediately
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# and also make sure that any unicode strings get
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# encoded using "replace" before writing them.
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class SafeUnbuffered:
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def __init__(self, stream):
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self.stream = stream
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self.encoding = stream.encoding
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if self.encoding == None:
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self.encoding = "utf-8"
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def write(self, data):
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if isinstance(data,str) or isinstance(data,unicode):
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# str for Python3, unicode for Python2
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data = data.encode(self.encoding,"replace")
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try:
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buffer = getattr(self.stream, 'buffer', self.stream)
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# self.stream.buffer for Python3, self.stream for Python2
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buffer.write(data)
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buffer.flush()
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except:
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# We can do nothing if a write fails
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raise
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def __getattr__(self, attr):
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return getattr(self.stream, attr)
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try:
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from calibre.constants import iswindows, isosx
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except:
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iswindows = sys.platform.startswith('win')
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isosx = sys.platform.startswith('darwin')
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def unicode_argv():
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if iswindows:
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# Uses shell32.GetCommandLineArgvW to get sys.argv as a list of Unicode
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# strings.
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# Versions 2.x of Python don't support Unicode in sys.argv on
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# Windows, with the underlying Windows API instead replacing multi-byte
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# characters with '?'.
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from ctypes import POINTER, byref, cdll, c_int, windll
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from ctypes.wintypes import LPCWSTR, LPWSTR
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GetCommandLineW = cdll.kernel32.GetCommandLineW
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GetCommandLineW.argtypes = []
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GetCommandLineW.restype = LPCWSTR
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CommandLineToArgvW = windll.shell32.CommandLineToArgvW
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CommandLineToArgvW.argtypes = [LPCWSTR, POINTER(c_int)]
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CommandLineToArgvW.restype = POINTER(LPWSTR)
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cmd = GetCommandLineW()
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argc = c_int(0)
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argv = CommandLineToArgvW(cmd, byref(argc))
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if argc.value > 0:
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# Remove Python executable and commands if present
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start = argc.value - len(sys.argv)
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return [argv[i] for i in
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range(start, argc.value)]
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return ["ineptepub.py"]
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else:
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argvencoding = sys.stdin.encoding or "utf-8"
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return [arg if (isinstance(arg, str) or isinstance(arg,unicode)) else str(arg, argvencoding) for arg in sys.argv]
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class IGNOBLEError(Exception):
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pass
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def _load_crypto_libcrypto():
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from ctypes import CDLL, POINTER, c_void_p, c_char_p, c_int, c_long, \
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Structure, c_ulong, create_string_buffer, cast
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from ctypes.util import find_library
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if iswindows:
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libcrypto = find_library('libeay32')
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else:
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libcrypto = find_library('crypto')
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if libcrypto is None:
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raise IGNOBLEError('libcrypto not found')
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libcrypto = CDLL(libcrypto)
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AES_MAXNR = 14
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c_char_pp = POINTER(c_char_p)
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c_int_p = POINTER(c_int)
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class AES_KEY(Structure):
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_fields_ = [('rd_key', c_long * (4 * (AES_MAXNR + 1))),
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('rounds', c_int)]
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AES_KEY_p = POINTER(AES_KEY)
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def F(restype, name, argtypes):
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func = getattr(libcrypto, name)
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func.restype = restype
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func.argtypes = argtypes
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return func
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AES_set_decrypt_key = F(c_int, 'AES_set_decrypt_key',
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[c_char_p, c_int, AES_KEY_p])
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AES_cbc_encrypt = F(None, 'AES_cbc_encrypt',
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[c_char_p, c_char_p, c_ulong, AES_KEY_p, c_char_p,
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c_int])
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class AES(object):
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def __init__(self, userkey):
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self._blocksize = len(userkey)
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if (self._blocksize != 16) and (self._blocksize != 24) and (self._blocksize != 32) :
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raise IGNOBLEError('AES improper key used')
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return
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key = self._key = AES_KEY()
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rv = AES_set_decrypt_key(userkey, len(userkey) * 8, key)
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if rv < 0:
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raise IGNOBLEError('Failed to initialize AES key')
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def decrypt(self, data):
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out = create_string_buffer(len(data))
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iv = (b'\x00' * self._blocksize)
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rv = AES_cbc_encrypt(data, out, len(data), self._key, iv, 0)
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if rv == 0:
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raise IGNOBLEError('AES decryption failed')
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return out.raw
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return AES
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def _load_crypto_pycrypto():
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from Crypto.Cipher import AES as _AES
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class AES(object):
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def __init__(self, key):
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self._aes = _AES.new(key, _AES.MODE_CBC, b'\x00'*16)
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def decrypt(self, data):
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return self._aes.decrypt(data)
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return AES
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def _load_crypto():
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AES = None
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cryptolist = (_load_crypto_libcrypto, _load_crypto_pycrypto)
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if sys.platform.startswith('win'):
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cryptolist = (_load_crypto_pycrypto, _load_crypto_libcrypto)
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for loader in cryptolist:
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try:
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AES = loader()
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break
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except (ImportError, IGNOBLEError):
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pass
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return AES
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AES = _load_crypto()
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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 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(bookkey)
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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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path = path.encode('utf-8')
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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(b'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 bytes(path,'utf-8') in self._encrypted:
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data = self._aes.decrypt(data)[16:]
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data = data[:-data[-1]]
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data = self.decompress(data)
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return data
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# check file to make check whether it's probably an Adobe Adept encrypted ePub
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def ignobleBook(inpath):
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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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return False
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try:
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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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if len(bookkey) == 64:
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return True
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except:
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# if we couldn't check, assume it is
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return True
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return False
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def decryptBook(keyb64, inpath, outpath):
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if AES is None:
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raise IGNOBLEError("PyCrypto or OpenSSL must be installed.")
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key = base64.b64decode(keyb64)[:16]
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aes = AES(key)
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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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print("{0:s} is DRM-free.".format(os.path.basename(inpath)))
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return 1
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for name in META_NAMES:
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namelist.remove(name)
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try:
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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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if len(bookkey) != 64:
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print("{0:s} is not a secure Barnes & Noble ePub.".format(os.path.basename(inpath)))
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return 1
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bookkey = aes.decrypt(base64.b64decode(bookkey))
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bookkey = bookkey[:-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')
|
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zi.compress_type=ZIP_STORED
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try:
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# if the mimetype is present, get its info, including time-stamp
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oldzi = inf.getinfo('mimetype')
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# copy across fields to be preserved
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zi.date_time = oldzi.date_time
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zi.comment = oldzi.comment
|
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zi.extra = oldzi.extra
|
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zi.internal_attr = oldzi.internal_attr
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# external attributes are dependent on the create system, so copy both.
|
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zi.external_attr = oldzi.external_attr
|
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zi.create_system = oldzi.create_system
|
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except:
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pass
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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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zi = ZipInfo(path)
|
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zi.compress_type=ZIP_DEFLATED
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try:
|
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# get the file info, including time-stamp
|
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oldzi = inf.getinfo(path)
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# copy across useful fields
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zi.date_time = oldzi.date_time
|
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zi.comment = oldzi.comment
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zi.extra = oldzi.extra
|
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zi.internal_attr = oldzi.internal_attr
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# external attributes are dependent on the create system, so copy both.
|
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zi.external_attr = oldzi.external_attr
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zi.create_system = oldzi.create_system
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except:
|
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pass
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outf.writestr(zi, decryptor.decrypt(path, data))
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except:
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print("Could not decrypt {0:s} because of an exception:\n{1:s}".format(os.path.basename(inpath), traceback.format_exc()))
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return 2
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return 0
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|
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|
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def cli_main():
|
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sys.stdout=SafeUnbuffered(sys.stdout)
|
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sys.stderr=SafeUnbuffered(sys.stderr)
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argv=unicode_argv()
|
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progname = os.path.basename(argv[0])
|
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if len(argv) != 4:
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print("usage: {0} <keyfile.b64> <inbook.epub> <outbook.epub>".format(progname))
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return 1
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keypath, inpath, outpath = argv[1:]
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userkey = open(keypath,'rb').read()
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result = decryptBook(userkey, inpath, outpath)
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if result == 0:
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print("Successfully decrypted {0:s} as {1:s}".format(os.path.basename(inpath),os.path.basename(outpath)))
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return result
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|
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def gui_main():
|
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try:
|
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import tkinter
|
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import tkinter.constants
|
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import tkinter.filedialog
|
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import tkinter.messagebox
|
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import traceback
|
||||
except:
|
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return cli_main()
|
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|
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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=tkinter.constants.X, expand=1)
|
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body = tkinter.Frame(self)
|
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body.pack(fill=tkinter.constants.X, expand=1)
|
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sticky = tkinter.constants.E + tkinter.constants.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)
|
||||
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)
|
||||
button.grid(row=0, column=2)
|
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tkinter.Label(body, text="Input file").grid(row=1)
|
||||
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)
|
||||
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)
|
||||
button = tkinter.Button(body, text="...", command=self.get_outpath)
|
||||
button.grid(row=2, column=2)
|
||||
buttons = tkinter.Frame(self)
|
||||
buttons.pack()
|
||||
botton = tkinter.Button(
|
||||
buttons, text="Decrypt", width=10, command=self.decrypt)
|
||||
botton.pack(side=tkinter.constants.LEFT)
|
||||
tkinter.Frame(buttons, width=10).pack(side=tkinter.constants.LEFT)
|
||||
button = tkinter.Button(
|
||||
buttons, text="Quit", width=10, command=self.quit)
|
||||
button.pack(side=tkinter.constants.RIGHT)
|
||||
|
||||
def get_keypath(self):
|
||||
keypath = tkinter.filedialog.askopenfilename(
|
||||
parent=None, title="Select Barnes & Noble \'.b64\' key file",
|
||||
defaultextension=".b64",
|
||||
filetypes=[('base64-encoded files', '.b64'),
|
||||
('All Files', '.*')])
|
||||
if keypath:
|
||||
keypath = os.path.normpath(keypath)
|
||||
self.keypath.delete(0, tkinter.constants.END)
|
||||
self.keypath.insert(0, keypath)
|
||||
return
|
||||
|
||||
def get_inpath(self):
|
||||
inpath = tkinter.filedialog.askopenfilename(
|
||||
parent=None, title="Select B&N-encrypted ePub file to decrypt",
|
||||
defaultextension=".epub", filetypes=[('ePub files', '.epub')])
|
||||
if inpath:
|
||||
inpath = os.path.normpath(inpath)
|
||||
self.inpath.delete(0, tkinter.constants.END)
|
||||
self.inpath.insert(0, inpath)
|
||||
return
|
||||
|
||||
def get_outpath(self):
|
||||
outpath = tkinter.filedialog.asksaveasfilename(
|
||||
parent=None, title="Select unencrypted ePub file to produce",
|
||||
defaultextension=".epub", filetypes=[('ePub files', '.epub')])
|
||||
if outpath:
|
||||
outpath = os.path.normpath(outpath)
|
||||
self.outpath.delete(0, tkinter.constants.END)
|
||||
self.outpath.insert(0, outpath)
|
||||
return
|
||||
|
||||
def decrypt(self):
|
||||
keypath = self.keypath.get()
|
||||
inpath = self.inpath.get()
|
||||
outpath = self.outpath.get()
|
||||
if not keypath or not os.path.exists(keypath):
|
||||
self.status['text'] = "Specified key file does not exist"
|
||||
return
|
||||
if not inpath or not os.path.exists(inpath):
|
||||
self.status['text'] = "Specified input file does not exist"
|
||||
return
|
||||
if not outpath:
|
||||
self.status['text'] = "Output file not specified"
|
||||
return
|
||||
if inpath == outpath:
|
||||
self.status['text'] = "Must have different input and output files"
|
||||
return
|
||||
userkey = open(keypath,'rb').read()
|
||||
self.status['text'] = "Decrypting..."
|
||||
try:
|
||||
decrypt_status = decryptBook(userkey, inpath, outpath)
|
||||
except Exception as e:
|
||||
self.status['text'] = "Error: {0}".format(e.args[0])
|
||||
return
|
||||
if decrypt_status == 0:
|
||||
self.status['text'] = "File successfully decrypted"
|
||||
else:
|
||||
self.status['text'] = "The was an error decrypting the file."
|
||||
|
||||
root = tkinter.Tk()
|
||||
root.title("Barnes & Noble ePub Decrypter v.{0}".format(__version__))
|
||||
root.resizable(True, False)
|
||||
root.minsize(300, 0)
|
||||
DecryptionDialog(root).pack(fill=tkinter.constants.X, expand=1)
|
||||
root.mainloop()
|
||||
return 0
|
||||
|
||||
if __name__ == '__main__':
|
||||
if len(sys.argv) > 1:
|
||||
sys.exit(cli_main())
|
||||
sys.exit(gui_main())
|
|
@ -50,8 +50,8 @@ def decryptepub(infile, outdir, rscpath):
|
|||
errlog += traceback.format_exc()
|
||||
errlog += str(e)
|
||||
rv = 1
|
||||
# now try with ignoble epub
|
||||
elif ignobleepub.ignobleBook(zippath):
|
||||
|
||||
# now try with ignoble epub
|
||||
# try with any keyfiles (*.b64) in the rscpath
|
||||
files = os.listdir(rscpath)
|
||||
filefilter = re.compile("\.b64$", re.IGNORECASE)
|
||||
|
@ -62,7 +62,7 @@ def decryptepub(infile, outdir, rscpath):
|
|||
userkey = open(keypath,'r').read()
|
||||
#print userkey
|
||||
try:
|
||||
rv = ignobleepub.decryptBook(userkey, zippath, outfile)
|
||||
rv = ineptepub.decryptBook(userkey, zippath, outfile)
|
||||
if rv == 0:
|
||||
print("Decrypted B&N ePub with key file {0}".format(filename))
|
||||
break
|
||||
|
@ -121,7 +121,7 @@ def decryptpdb(infile, outdir, rscpath):
|
|||
rv = 1
|
||||
socialpath = os.path.join(rscpath,'sdrmlist.txt')
|
||||
if os.path.exists(socialpath):
|
||||
keydata = file(socialpath,'r').read()
|
||||
keydata = open(socialpath,'r').read()
|
||||
keydata = keydata.rstrip(os.linesep)
|
||||
ar = keydata.split(',')
|
||||
for i in ar:
|
||||
|
@ -148,7 +148,7 @@ def decryptk4mobi(infile, outdir, rscpath):
|
|||
pidnums = []
|
||||
pidspath = os.path.join(rscpath,'pidlist.txt')
|
||||
if os.path.exists(pidspath):
|
||||
pidstr = file(pidspath,'r').read()
|
||||
pidstr = open(pidspath,'r').read()
|
||||
pidstr = pidstr.rstrip(os.linesep)
|
||||
pidstr = pidstr.strip()
|
||||
if pidstr != '':
|
||||
|
@ -156,7 +156,7 @@ def decryptk4mobi(infile, outdir, rscpath):
|
|||
serialnums = []
|
||||
serialnumspath = os.path.join(rscpath,'seriallist.txt')
|
||||
if os.path.exists(serialnumspath):
|
||||
serialstr = file(serialnumspath,'r').read()
|
||||
serialstr = open(serialnumspath,'r').read()
|
||||
serialstr = serialstr.rstrip(os.linesep)
|
||||
serialstr = serialstr.strip()
|
||||
if serialstr != '':
|
||||
|
|
|
@ -332,7 +332,7 @@ class TopazBook:
|
|||
keydata = self.getBookPayloadRecord(b'dkey', 0)
|
||||
except DrmException as e:
|
||||
print("no dkey record found, book may not be encrypted")
|
||||
print("attempting to extrct files without a book key")
|
||||
print("attempting to extract files without a book key")
|
||||
self.createBookDirectory()
|
||||
self.extractFiles()
|
||||
print("Successfully Extracted Topaz contents")
|
||||
|
@ -364,7 +364,7 @@ class TopazBook:
|
|||
break
|
||||
|
||||
if not bookKey:
|
||||
raise DrmException("No key found in {0:d} keys tried. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md".format(len(pidlst)))
|
||||
raise DrmException("No key found in {0:d} keys tried. Read the FAQs at noDRM's repository: https://github.com/noDRM/DeDRM_tools/blob/master/FAQs.md".format(len(pidlst)))
|
||||
|
||||
self.setBookKey(bookKey)
|
||||
self.createBookDirectory()
|
||||
|
|
Loading…
Reference in a new issue