DeDRM_tools/DeDRM_plugin/ignoblekey.py
Apprentice Harper afa4ac5716 Starting on Version 7.0 using the work done by others. Completely untested. I will be testing things, but I thought I'd get this base version up for others to give pull requests.
THIS IS ON THE MASTER BRANCH. The Master branch will be Python 3.0 from now on. While Python 2.7 support will not be deliberately broken, all efforts should now focus on Python 3.0 compatibility.

I can see a lot of work has been done. There's more to do. I've bumped the version number of everything I came across to the next major number for Python 3.0 compatibility indication.

Thanks everyone. I hope to update here at least once a week until we have a stable 7.0 release for calibre 5.0
2020-09-26 21:22:47 +01:00

338 lines
12 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
from __future__ import with_statement
from __future__ import print_function
# ignoblekey.py
# Copyright © 2015-2020 Apprentice Alf, Apprentice Harper et al.
# Based on kindlekey.py, Copyright © 2010-2013 by some_updates and Apprentice Alf
# Released under the terms of the GNU General Public Licence, version 3
# <http://www.gnu.org/licenses/>
# Revision history:
# 1.0 - Initial release
# 1.1 - remove duplicates and return last key as single key
# 2.0 - Added Python 3 compatibility for calibre 5.0
"""
Get Barnes & Noble EPUB user key from nook Studio log file
"""
__license__ = 'GPL v3'
__version__ = "1.1"
import sys
import os
import hashlib
import getopt
import re
# Wrap a stream so that output gets flushed immediately
# and also make sure that any unicode strings get
# encoded using "replace" before writing them.
class SafeUnbuffered:
def __init__(self, stream):
self.stream = stream
self.encoding = stream.encoding
if self.encoding == None:
self.encoding = "utf-8"
def write(self, data):
if isinstance(data,bytes):
data = data.encode(self.encoding,"replace")
self.stream.write(data)
self.stream.flush()
def __getattr__(self, attr):
return getattr(self.stream, attr)
try:
from calibre.constants import iswindows, isosx
except:
iswindows = sys.platform.startswith('win')
isosx = sys.platform.startswith('darwin')
def unicode_argv():
if iswindows:
# Uses shell32.GetCommandLineArgvW to get sys.argv as a list of Unicode
# strings.
# Versions 2.x of Python don't support Unicode in sys.argv on
# Windows, with the underlying Windows API instead replacing multi-byte
# characters with '?'. So use shell32.GetCommandLineArgvW to get sys.argv
# as a list of Unicode strings and encode them as utf-8
from ctypes import POINTER, byref, cdll, c_int, windll
from ctypes.wintypes import LPCWSTR, LPWSTR
GetCommandLineW = cdll.kernel32.GetCommandLineW
GetCommandLineW.argtypes = []
GetCommandLineW.restype = LPCWSTR
CommandLineToArgvW = windll.shell32.CommandLineToArgvW
CommandLineToArgvW.argtypes = [LPCWSTR, POINTER(c_int)]
CommandLineToArgvW.restype = POINTER(LPWSTR)
cmd = GetCommandLineW()
argc = c_int(0)
argv = CommandLineToArgvW(cmd, byref(argc))
if argc.value > 0:
# Remove Python executable and commands if present
start = argc.value - len(sys.argv)
return [argv[i] for i in
range(start, argc.value)]
# if we don't have any arguments at all, just pass back script name
# this should never happen
return [u"ignoblekey.py"]
else:
argvencoding = sys.stdin.encoding
if argvencoding == None:
argvencoding = "utf-8"
return argv
class DrmException(Exception):
pass
# Locate all of the nookStudy/nook for PC/Mac log file and return as list
def getNookLogFiles():
logFiles = []
found = False
if iswindows:
import _winreg as winreg
# some 64 bit machines do not have the proper registry key for some reason
# or the python interface to the 32 vs 64 bit registry is broken
paths = set()
if 'LOCALAPPDATA' in os.environ.keys():
# Python 2.x does not return unicode env. Use Python 3.x
path = winreg.ExpandEnvironmentStrings(u"%LOCALAPPDATA%")
if os.path.isdir(path):
paths.add(path)
if 'USERPROFILE' in os.environ.keys():
# Python 2.x does not return unicode env. Use Python 3.x
path = winreg.ExpandEnvironmentStrings(u"%USERPROFILE%")+u"\\AppData\\Local"
if os.path.isdir(path):
paths.add(path)
path = winreg.ExpandEnvironmentStrings(u"%USERPROFILE%")+u"\\AppData\\Roaming"
if os.path.isdir(path):
paths.add(path)
# User Shell Folders show take precedent over Shell Folders if present
try:
regkey = winreg.OpenKey(winreg.HKEY_CURRENT_USER, "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\User Shell Folders\\")
path = winreg.QueryValueEx(regkey, 'Local AppData')[0]
if os.path.isdir(path):
paths.add(path)
except WindowsError:
pass
try:
regkey = winreg.OpenKey(winreg.HKEY_CURRENT_USER, "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\User Shell Folders\\")
path = winreg.QueryValueEx(regkey, 'AppData')[0]
if os.path.isdir(path):
paths.add(path)
except WindowsError:
pass
try:
regkey = winreg.OpenKey(winreg.HKEY_CURRENT_USER, "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders\\")
path = winreg.QueryValueEx(regkey, 'Local AppData')[0]
if os.path.isdir(path):
paths.add(path)
except WindowsError:
pass
try:
regkey = winreg.OpenKey(winreg.HKEY_CURRENT_USER, "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders\\")
path = winreg.QueryValueEx(regkey, 'AppData')[0]
if os.path.isdir(path):
paths.add(path)
except WindowsError:
pass
for path in paths:
# look for nookStudy log file
logpath = path +'\\Barnes & Noble\\NOOKstudy\\logs\\BNClientLog.txt'
if os.path.isfile(logpath):
found = True
print('Found nookStudy log file: ' + logpath.encode('ascii','ignore'))
logFiles.append(logpath)
else:
home = os.getenv('HOME')
# check for BNClientLog.txt in various locations
testpath = home + '/Library/Application Support/Barnes & Noble/DesktopReader/logs/BNClientLog.txt'
if os.path.isfile(testpath):
logFiles.append(testpath)
print('Found nookStudy log file: ' + testpath)
found = True
testpath = home + '/Library/Application Support/Barnes & Noble/DesktopReader/indices/BNClientLog.txt'
if os.path.isfile(testpath):
logFiles.append(testpath)
print('Found nookStudy log file: ' + testpath)
found = True
testpath = home + '/Library/Application Support/Barnes & Noble/BNDesktopReader/logs/BNClientLog.txt'
if os.path.isfile(testpath):
logFiles.append(testpath)
print('Found nookStudy log file: ' + testpath)
found = True
testpath = home + '/Library/Application Support/Barnes & Noble/BNDesktopReader/indices/BNClientLog.txt'
if os.path.isfile(testpath):
logFiles.append(testpath)
print('Found nookStudy log file: ' + testpath)
found = True
if not found:
print('No nook Study log files have been found.')
return logFiles
# Extract CCHash key(s) from log file
def getKeysFromLog(kLogFile):
keys = []
regex = re.compile("ccHash: \"(.{28})\"");
for line in open(kLogFile):
for m in regex.findall(line):
keys.append(m)
return keys
# interface for calibre plugin
def nookkeys(files = []):
keys = []
if files == []:
files = getNookLogFiles()
for file in files:
fileKeys = getKeysFromLog(file)
if fileKeys:
print(u"Found {0} keys in the Nook Study log files".format(len(fileKeys)))
keys.extend(fileKeys)
return list(set(keys))
# interface for Python DeDRM
# returns single key or multiple keys, depending on path or file passed in
def getkey(outpath, files=[]):
keys = nookkeys(files)
if len(keys) > 0:
if not os.path.isdir(outpath):
outfile = outpath
with open(outfile, 'w') as keyfileout:
keyfileout.write(keys[-1])
print(u"Saved a key to {0}".format(outfile))
else:
keycount = 0
for key in keys:
while True:
keycount += 1
outfile = os.path.join(outpath,u"nookkey{0:d}.b64".format(keycount))
if not os.path.exists(outfile):
break
with open(outfile, 'w') as keyfileout:
keyfileout.write(key)
print(u"Saved a key to {0}".format(outfile))
return True
return False
def usage(progname):
print(u"Finds the nook Study encryption keys.")
print(u"Keys are saved to the current directory, or a specified output directory.")
print(u"If a file name is passed instead of a directory, only the first key is saved, in that file.")
print(u"Usage:")
print(u" {0:s} [-h] [-k <logFile>] [<outpath>]".format(progname))
def cli_main():
sys.stdout=SafeUnbuffered(sys.stdout)
sys.stderr=SafeUnbuffered(sys.stderr)
argv=unicode_argv()
progname = os.path.basename(argv[0])
print(u"{0} v{1}\nCopyright © 2015 Apprentice Alf".format(progname,__version__))
try:
opts, args = getopt.getopt(argv[1:], "hk:")
except getopt.GetoptError as err:
print(u"Error in options or arguments: {0}".format(err.args[0]))
usage(progname)
sys.exit(2)
files = []
for o, a in opts:
if o == "-h":
usage(progname)
sys.exit(0)
if o == "-k":
files = [a]
if len(args) > 1:
usage(progname)
sys.exit(2)
if len(args) == 1:
# save to the specified file or directory
outpath = args[0]
if not os.path.isabs(outpath):
outpath = os.path.abspath(outpath)
else:
# save to the same directory as the script
outpath = os.path.dirname(argv[0])
# make sure the outpath is the
outpath = os.path.realpath(os.path.normpath(outpath))
if not getkey(outpath, files):
print(u"Could not retrieve nook Study key.")
return 0
def gui_main():
try:
import Tkinter
import Tkconstants
import tkMessageBox
import traceback
except:
return cli_main()
class ExceptionDialog(Tkinter.Frame):
def __init__(self, root, text):
Tkinter.Frame.__init__(self, root, border=5)
label = Tkinter.Label(self, text=u"Unexpected error:",
anchor=Tkconstants.W, justify=Tkconstants.LEFT)
label.pack(fill=Tkconstants.X, expand=0)
self.text = Tkinter.Text(self)
self.text.pack(fill=Tkconstants.BOTH, expand=1)
self.text.insert(Tkconstants.END, text)
argv=unicode_argv()
root = Tkinter.Tk()
root.withdraw()
progpath, progname = os.path.split(argv[0])
success = False
try:
keys = nookkeys()
keycount = 0
for key in keys:
print(key)
while True:
keycount += 1
outfile = os.path.join(progpath,u"nookkey{0:d}.b64".format(keycount))
if not os.path.exists(outfile):
break
with open(outfile, 'w') as keyfileout:
keyfileout.write(key)
success = True
tkMessageBox.showinfo(progname, u"Key successfully retrieved to {0}".format(outfile))
except DrmException as e:
tkMessageBox.showerror(progname, u"Error: {0}".format(str(e)))
except Exception:
root.wm_state('normal')
root.title(progname)
text = traceback.format_exc()
ExceptionDialog(root, text).pack(fill=Tkconstants.BOTH, expand=1)
root.mainloop()
if not success:
return 1
return 0
if __name__ == '__main__':
if len(sys.argv) > 1:
sys.exit(cli_main())
sys.exit(gui_main())