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tools v3.4

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Apprentice Alf
2011-02-08 17:21:51 +00:00
parent 8b632e309f
commit 2bedd75005
29 changed files with 234 additions and 650 deletions
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39
Calibre_Plugins/ineptpdf_plugin/ineptpdf_plugin.py
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@@ -47,7 +47,10 @@
# ** NOTE ** There is no plugin customization data for the Inept PDF DeDRM plugin.
#
# Revision history:
# 0.1 - Initial release
# 0.1 - Initial release
# 0.1.1 - back port ineptpdf 8.4.X support for increased number of encryption methods
# 0.1.2 - back port ineptpdf 8.4.X bug fixes
# 0.1.3 - add in fix for improper rejection of session bookkeys with len(bookkey) = length + 1
"""
Decrypts Adobe ADEPT-encrypted PDF files.
@@ -1544,16 +1547,30 @@ class PDFDocument(object):
bookkey = bookkey[index:]
ebx_V = int_value(param.get('V', 4))
ebx_type = int_value(param.get('EBX_ENCRYPTIONTYPE', 6))
# added because of the booktype / decryption book session key error
if ebx_V == 3:
V = 3
elif ebx_V < 4 or ebx_type < 6:
V = ord(bookkey[0])
bookkey = bookkey[1:]
# added because of improper booktype / decryption book session key errors
if length > 0:
if len(bookkey) == length:
if ebx_V == 3:
V = 3
else:
V = 2
elif len(bookkey) == length + 1:
V = ord(bookkey[0])
bookkey = bookkey[1:]
else:
print "ebx_V is %d and ebx_type is %d" % (ebx_V, ebx_type)
print "length is %d and len(bookkey) is %d" % (length, len(bookkey))
print "bookkey[0] is %d" % ord(bookkey[0])
raise ADEPTError('error decrypting book session key - mismatched length')
else:
V = 2
if length and len(bookkey) != length:
raise ADEPTError('error decrypting book session key')
# proper length unknown try with whatever you have
print "ebx_V is %d and ebx_type is %d" % (ebx_V, ebx_type)
print "length is %d and len(bookkey) is %d" % (length, len(bookkey))
print "bookkey[0] is %d" % ord(bookkey[0])
if ebx_V == 3:
V = 3
else:
V = 2
self.decrypt_key = bookkey
self.genkey = self.genkey_v3 if V == 3 else self.genkey_v2
self.decipher = self.decrypt_rc4
@@ -2116,7 +2133,7 @@ class IneptPDFDeDRM(FileTypePlugin):
Credit given to I <3 Cabbages for the original stand-alone scripts.'
supported_platforms = ['linux', 'osx', 'windows']
author = 'DiapDealer'
version = (0, 1, 2)
version = (0, 1, 3)
minimum_calibre_version = (0, 6, 44) # Compiled python libraries cannot be imported in earlier versions.
file_types = set(['pdf'])
on_import = True