tools v2.2

This commit is contained in:
Apprentice Alf
2010-11-11 22:11:36 +00:00
parent 5f0671db7f
commit c386ac6e6d
100 changed files with 3157 additions and 4807 deletions

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@@ -1,65 +0,0 @@
Ignoble Epub DeDRM - ignobleepub_vXX_plugin.zip
Requires Calibre version 0.6.44 or higher.
All credit given to I <3 Cabbages for the original standalone scripts.
I had the much easier job of converting them to a Calibre plugin.
This plugin is meant to decrypt Barnes & Noble Epubs that are protected
with Adobe's Adept encryption. It is meant to function without having to install
any dependencies... other than having Calibre installed, of course. It will still
work if you have Python and PyCrypto already installed, but they aren't necessary.
Installation:
Go to Calibre's Preferences page... click on the Plugins button. Use the file
dialog button to select the plugin's zip file (ignobleepub_vXX_plugin.zip) and
click the 'Add' button. you're done.
Configuration:
1) The easiest way to configure the plugin is to enter your name (Barnes & Noble account
name) and credit card number (the one used to purchase the books) into the plugin's
customization window. It's the same info you would enter into the ignoblekeygen script.
Highlight the plugin (Ignoble Epub DeDRM) and click the "Customize Plugin" button on
Calibre's Preferences->Plugins page. Enter the name and credit card number separated
by a comma: Your Name,1234123412341234
If you've purchased books with more than one credit card, separate that other info with
a colon: Your Name,1234123412341234:Other Name,2345234523452345
** NOTE ** The above method is your only option if you don't have/can't run the original
I <3 Cabbages scripts on your particular machine.
** NOTE ** Your credit card number will be on display in Calibre's Plugin configuration
page when using the above method. If other people have access to your computer,
you may want to use the second configuration method below.
2) If you already have keyfiles generated with I <3 Cabbages' ignoblekeygen.pyw
script, you can put those keyfiles into Calibre's configuration directory. The easiest
way to find the correct directory is to go to Calibre's Preferences page... click
on the 'Miscellaneous' button (looks like a gear), and then click the 'Open Calibre
configuration directory' button. Paste your keyfiles in there. Just make sure that
they have different names and are saved with the '.b64' extension (like the ignoblekeygen
script produces). This directory isn't touched when upgrading Calibre, so it's quite safe
to leave then there.
All keyfiles from method 2 and all data entered from method 1 will be used to attempt
to decrypt a book. You can use method 1 or method 2, or a combination of both.
Troubleshooting:
If you find that it's not working for you (imported epubs still have DRM), you can
save a lot of time and trouble by trying to add the epub to Calibre with the command
line tools. This will print out a lot of helpful debugging info that can be copied into
any online help requests. I'm going to ask you to do it first, anyway, so you might
as well get used to it. ;)
Open a command prompt (terminal) and change to the directory where the ebook you're
trying to import resides. Then type the command "calibredb add your_ebook.epub".
Don't type the quotes and obviously change the 'your_ebook.epub' to whatever the
filename of your book is. Copy the resulting output and paste it into any online
help request you make.
** Note: the Mac version of Calibre doesn't install the command line tools by default.
If you go to the 'Preferences' page and click on the miscellaneous button, you'll
see the option to install the command line tools.

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@@ -1,6 +1,6 @@
#!/usr/bin/env python
# ignobleepub_v01_plugin.py
# ignobleepub_plugin.py
# Released under the terms of the GNU General Public Licence, version 3 or
# later. <http://www.gnu.org/licenses/>
#
@@ -41,7 +41,9 @@
#
#
# Revision history:
# 0.1 - Initial release
# 0.1.0 - Initial release
# 0.1.1 - Allow Windows users to make use of openssl if they have it installed.
# - Incorporated SomeUpdates zipfix routine.
"""
@@ -77,7 +79,10 @@ def _load_crypto_libcrypto():
Structure, c_ulong, create_string_buffer, cast
from ctypes.util import find_library
libcrypto = find_library('crypto')
if sys.platform.startswith('win'):
libcrypto = find_library('libeay32')
else:
libcrypto = find_library('crypto')
if libcrypto is None:
raise IGNOBLEError('libcrypto not found')
libcrypto = CDLL(libcrypto)
@@ -261,7 +266,7 @@ class IgnobleDeDRM(FileTypePlugin):
Credit given to I <3 Cabbages for the original stand-alone scripts.'
supported_platforms = ['linux', 'osx', 'windows']
author = 'DiapDealer'
version = (0, 1, 0)
version = (0, 1, 1)
minimum_calibre_version = (0, 6, 44) # Compiled python libraries cannot be imported in earlier versions.
file_types = set(['epub'])
on_import = True
@@ -277,13 +282,12 @@ class IgnobleDeDRM(FileTypePlugin):
# Add the included pycrypto import directory for Windows users.
pdir = 'windows' if iswindows else 'osx' if isosx else 'linux'
ppath = os.path.join(self.sys_insertion_path, pdir)
#sys.path.insert(0, ppath)
sys.path.append(ppath)
AES, AES2 = _load_crypto()
if AES == None or AES2 == None:
# Failed to load libcrypto or PyCrypto... Adobe Epubs can\'t be decrypted.'
# Failed to load libcrypto or PyCrypto... Adobe Epubs can't be decrypted.'
sys.path.remove(ppath)
raise IGNOBLEError('IgnobleEpub - Failed to load crypto libs.')
return
@@ -337,10 +341,19 @@ class IgnobleDeDRM(FileTypePlugin):
# Attempt to decrypt epub with each encryption key (generated or provided).
for userkey in userkeys:
# Create a TemporaryPersistent file to work with.
# Check original epub archive for zip errors.
import zipfix
inf = self.temporary_file('.epub')
try:
fr = zipfix.fixZip(path_to_ebook, inf.name)
fr.fix()
except Exception, e:
raise Exception(e)
return
of = self.temporary_file('.epub')
# Give the user key, ebook and TemporaryPersistent file to the Stripper function.
result = plugin_main(userkey, path_to_ebook, of.name)
result = plugin_main(userkey, inf.name, of.name)
# Ebook is not a B&N Adept epub... do nothing and pass it on.
# This allows a non-encrypted epub to be imported without error messages.
@@ -372,4 +385,4 @@ class IgnobleDeDRM(FileTypePlugin):
def customization_help(self, gui=False):
return 'Enter B&N Account name and CC# (separate name and CC# with a comma)'
return 'Enter B&N Account name and CC# (separate name and CC# with a comma)'

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@@ -0,0 +1,136 @@
#!/usr/bin/env python
import sys
import zlib
import zipfile
import os
import os.path
import getopt
from struct import unpack
_FILENAME_LEN_OFFSET = 26
_EXTRA_LEN_OFFSET = 28
_FILENAME_OFFSET = 30
_MAX_SIZE = 64 * 1024
class fixZip:
def __init__(self, zinput, zoutput):
self.inzip = zipfile.ZipFile(zinput,'r')
self.outzip = zipfile.ZipFile(zoutput,'w')
# open the input zip for reading only as a raw file
self.bzf = file(zinput,'rb')
def getlocalname(self, zi):
local_header_offset = zi.header_offset
self.bzf.seek(local_header_offset + _FILENAME_LEN_OFFSET)
leninfo = self.bzf.read(2)
local_name_length, = unpack('<H', leninfo)
self.bzf.seek(local_header_offset + _FILENAME_OFFSET)
local_name = self.bzf.read(local_name_length)
return local_name
def uncompress(self, cmpdata):
dc = zlib.decompressobj(-15)
data = ''
while len(cmpdata) > 0:
if len(cmpdata) > _MAX_SIZE :
newdata = cmpdata[0:_MAX_SIZE]
cmpdata = cmpdata[_MAX_SIZE:]
else:
newdata = cmpdata
cmpdata = ''
newdata = dc.decompress(newdata)
unprocessed = dc.unconsumed_tail
if len(unprocessed) == 0:
newdata += dc.flush()
data += newdata
cmpdata += unprocessed
unprocessed = ''
return data
def getfiledata(self, zi):
# get file name length and exta data length to find start of file data
local_header_offset = zi.header_offset
self.bzf.seek(local_header_offset + _FILENAME_LEN_OFFSET)
leninfo = self.bzf.read(2)
local_name_length, = unpack('<H', leninfo)
self.bzf.seek(local_header_offset + _EXTRA_LEN_OFFSET)
exinfo = self.bzf.read(2)
extra_field_length, = unpack('<H', exinfo)
self.bzf.seek(local_header_offset + _FILENAME_OFFSET + local_name_length + extra_field_length)
data = None
# if not compressed we are good to go
if zi.compress_type == zipfile.ZIP_STORED:
data = self.bzf.read(zi.file_size)
# if compressed we must decompress it using zlib
if zi.compress_type == zipfile.ZIP_DEFLATED:
cmpdata = self.bzf.read(zi.compress_size)
data = self.uncompress(cmpdata)
return data
def fix(self):
# get the zipinfo for each member of the input archive
# and copy member over to output archive
# if problems exist with local vs central filename, fix them
for i, zinfo in enumerate(self.inzip.infolist()):
data = None
nzinfo = zinfo
try:
data = self.inzip.read(zinfo)
except zipfile.BadZipfile or zipfile.error:
local_name = self.getlocalname(zinfo)
data = self.getfiledata(zinfo)
nzinfo.filename = local_name
nzinfo.date_time = zinfo.date_time
nzinfo.compress_type = zinfo.compress_type
nzinfo.flag_bits = 0
nzinfo.internal_attr = 0
self.outzip.writestr(nzinfo,data)
self.bzf.close()
self.inzip.close()
self.outzip.close()
def usage():
print """usage: zipfix.py inputzip outputzip
inputzip is the source zipfile to fix
outputzip is the fixed zip archive
"""
def main(argv=sys.argv):
if len(argv)!=3:
usage()
return 1
infile = None
outfile = None
infile = argv[1]
outfile = argv[2]
if not os.path.exists(infile):
print "Error: Input Zip File does not exist"
return 1
try:
fr = fixZip(infile, outfile)
fr.fix()
return 0
except Exception, e:
print "Error Occurred ", e
return 2
if __name__ == '__main__' :
sys.exit(main())