+#!/usr/bin/env python
+# -*- coding: ascii -*-
+# vim:ts=4:sw=4:softtabstop=4:smarttab:expandtab
+#
# This is a python script. You need a Python interpreter to run it.
# For example, ActiveState Python, which exists for windows.
# Changelog
# 0.01 - Initial version
# 0.02 - Support more eReader files. Support bold text and links. Fix PML decoder parsing bug.
# 0.03 - Fix incorrect variable usage at one place.
+# 0.03b - enhancement by DeBockle (version 259 support)
+# Custom version 0.03 - no change to eReader support, only usability changes
+# - start of pep-8 indentation (spaces not tab), fix trailing blanks
+# - version variable, only one place to change
+# - added main routine, now callable as a library/module,
+# means tools can add optional support for ereader2html
+# - outdir is no longer a mandatory parameter (defaults based on input name if missing)
+# - time taken output to stdout
+# - Psyco support - reduces runtime by a factor of (over) 3!
+# E.g. (~600Kb file) 90 secs down to 24 secs
+# - newstyle classes
+# - changed map call to list comprehension
+# may not work with python 2.3
+# without Psyco this reduces runtime to 90%
+# E.g. 90 secs down to 77 secs
+# Psyco with map calls takes longer, do not run with map in Psyco JIT!
+# - izip calls used instead of zip (if available), further reduction
+# in run time (factor of 4.5).
+# E.g. (~600Kb file) 90 secs down to 20 secs
+# - Python 2.6+ support, avoid DeprecationWarning with sha/sha1
+# 0.04 - Footnote support, PML output, correct charset in html, support more PML tags
+# - Feature change, dump out PML file
+# - Added supprt for footnote tags. NOTE footnote ids appear to be bad (not usable)
+# in some pdb files :-( due to the same id being used multiple times
+# - Added correct charset encoding (pml is based on cp1252)
+# - Added logging support.
+#
+# TODO run this through a profiler - speed increases so far was from
+# applying "quick known fixes", added (commented out) cprofiler call
# 0.05 - Support for more things in type 272
-import struct, binascii, zlib, os, sha, sys, os.path
-
-DEBUG=0
-
-ECB = 0
-CBC = 1
-class Des:
- __pc1 = [56, 48, 40, 32, 24, 16, 8, 0, 57, 49, 41, 33, 25, 17,
- 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51, 43, 35,
- 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21,
- 13, 5, 60, 52, 44, 36, 28, 20, 12, 4, 27, 19, 11, 3]
- __left_rotations = [1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1]
- __pc2 = [13, 16, 10, 23, 0, 4,2, 27, 14, 5, 20, 9,
- 22, 18, 11, 3, 25, 7, 15, 6, 26, 19, 12, 1,
- 40, 51, 30, 36, 46, 54, 29, 39, 50, 44, 32, 47,
- 43, 48, 38, 55, 33, 52, 45, 41, 49, 35, 28, 31]
- __ip = [57, 49, 41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3,
- 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7,
- 56, 48, 40, 32, 24, 16, 8, 0, 58, 50, 42, 34, 26, 18, 10, 2,
- 60, 52, 44, 36, 28, 20, 12, 4, 62, 54, 46, 38, 30, 22, 14, 6]
- __expansion_table = [31, 0, 1, 2, 3, 4, 3, 4, 5, 6, 7, 8,
- 7, 8, 9, 10, 11, 12,11, 12, 13, 14, 15, 16,
- 15, 16, 17, 18, 19, 20,19, 20, 21, 22, 23, 24,
- 23, 24, 25, 26, 27, 28,27, 28, 29, 30, 31, 0]
- __sbox = [[14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7,
- 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8,
- 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0,
- 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13],
- [15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10,
- 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5,
- 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15,
- 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9],
- [10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8,
- 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1,
- 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7,
- 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12],
- [7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15,
- 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9,
- 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4,
- 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14],
- [2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9,
- 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6,
- 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14,
- 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3],
- [12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11,
- 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8,
- 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6,
- 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13],
- [4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1,
- 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6,
- 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2,
- 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12],
- [13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7,
- 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2,
- 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8,
- 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11],]
- __p = [15, 6, 19, 20, 28, 11,27, 16, 0, 14, 22, 25,
- 4, 17, 30, 9, 1, 7,23,13, 31, 26, 2, 8,18, 12, 29, 5, 21, 10,3, 24]
- __fp = [39, 7, 47, 15, 55, 23, 63, 31,38, 6, 46, 14, 54, 22, 62, 30,
- 37, 5, 45, 13, 53, 21, 61, 29,36, 4, 44, 12, 52, 20, 60, 28,
- 35, 3, 43, 11, 51, 19, 59, 27,34, 2, 42, 10, 50, 18, 58, 26,
- 33, 1, 41, 9, 49, 17, 57, 25,32, 0, 40, 8, 48, 16, 56, 24]
- # Type of crypting being done
- ENCRYPT = 0x00
- DECRYPT = 0x01
- def __init__(self, key, mode=ECB, IV=None):
- if len(key) != 8:
- raise ValueError("Invalid DES key size. Key must be exactly 8 bytes long.")
- self.block_size = 8
- self.key_size = 8
- self.__padding = ''
- self.setMode(mode)
- if IV:
- self.setIV(IV)
- self.L = []
- self.R = []
- self.Kn = [ [0] * 48 ] * 16 # 16 48-bit keys (K1 - K16)
- self.final = []
- self.setKey(key)
- def getKey(self):
- return self.__key
- def setKey(self, key):
- self.__key = key
- self.__create_sub_keys()
- def getMode(self):
- return self.__mode
- def setMode(self, mode):
- self.__mode = mode
- def getIV(self):
- return self.__iv
- def setIV(self, IV):
- if not IV or len(IV) != self.block_size:
- raise ValueError("Invalid Initial Value (IV), must be a multiple of " + str(self.block_size) + " bytes")
- self.__iv = IV
- def getPadding(self):
- return self.__padding
- def __String_to_BitList(self, data):
- l = len(data) * 8
- result = [0] * l
- pos = 0
- for c in data:
- i = 7
- ch = ord(c)
- while i >= 0:
- if ch & (1 << i) != 0:
- result[pos] = 1
- else:
- result[pos] = 0
- pos += 1
- i -= 1
- return result
- def __BitList_to_String(self, data):
- result = ''
- pos = 0
- c = 0
- while pos < len(data):
- c += data[pos] << (7 - (pos % 8))
- if (pos % 8) == 7:
- result += chr(c)
- c = 0
- pos += 1
- return result
- def __permutate(self, table, block):
- return map(lambda x: block[x], table)
- def __create_sub_keys(self):
- key = self.__permutate(Des.__pc1, self.__String_to_BitList(self.getKey()))
- i = 0
- self.L = key[:28]
- self.R = key[28:]
- while i < 16:
- j = 0
- while j < Des.__left_rotations[i]:
- self.L.append(self.L[0])
- del self.L[0]
- self.R.append(self.R[0])
- del self.R[0]
- j += 1
- self.Kn[i] = self.__permutate(Des.__pc2, self.L + self.R)
- i += 1
- def __des_crypt(self, block, crypt_type):
- block = self.__permutate(Des.__ip, block)
- self.L = block[:32]
- self.R = block[32:]
- if crypt_type == Des.ENCRYPT:
- iteration = 0
- iteration_adjustment = 1
- else:
- iteration = 15
- iteration_adjustment = -1
- i = 0
- while i < 16:
- tempR = self.R[:]
- self.R = self.__permutate(Des.__expansion_table, self.R)
- self.R = map(lambda x, y: x ^ y, self.R, self.Kn[iteration])
- B = [self.R[:6], self.R[6:12], self.R[12:18], self.R[18:24], self.R[24:30], self.R[30:36], self.R[36:42], self.R[42:]]
- j = 0
- Bn = [0] * 32
- pos = 0
- while j < 8:
- m = (B[j][0] << 1) + B[j][5]
- n = (B[j][1] << 3) + (B[j][2] << 2) + (B[j][3] << 1) + B[j][4]
- v = Des.__sbox[j][(m << 4) + n]
- Bn[pos] = (v & 8) >> 3
- Bn[pos + 1] = (v & 4) >> 2
- Bn[pos + 2] = (v & 2) >> 1
- Bn[pos + 3] = v & 1
- pos += 4
- j += 1
- self.R = self.__permutate(Des.__p, Bn)
- self.R = map(lambda x, y: x ^ y, self.R, self.L)
- self.L = tempR
- i += 1
- iteration += iteration_adjustment
- self.final = self.__permutate(Des.__fp, self.R + self.L)
- return self.final
- def crypt(self, data, crypt_type):
- if not data:
- return ''
- if len(data) % self.block_size != 0:
- if crypt_type == Des.DECRYPT: # Decryption must work on 8 byte blocks
- raise ValueError("Invalid data length, data must be a multiple of " + str(self.block_size) + " bytes\n.")
- if not self.getPadding():
- raise ValueError("Invalid data length, data must be a multiple of " + str(self.block_size) + " bytes\n. Try setting the optional padding character")
- else:
- data += (self.block_size - (len(data) % self.block_size)) * self.getPadding()
- if self.getMode() == CBC:
- if self.getIV():
- iv = self.__String_to_BitList(self.getIV())
- else:
- raise ValueError("For CBC mode, you must supply the Initial Value (IV) for ciphering")
- i = 0
- dict = {}
- result = []
- while i < len(data):
- block = self.__String_to_BitList(data[i:i+8])
- if self.getMode() == CBC:
- if crypt_type == Des.ENCRYPT:
- block = map(lambda x, y: x ^ y, block, iv)
- processed_block = self.__des_crypt(block, crypt_type)
- if crypt_type == Des.DECRYPT:
- processed_block = map(lambda x, y: x ^ y, processed_block, iv)
- iv = block
- else:
- iv = processed_block
- else:
- processed_block = self.__des_crypt(block, crypt_type)
- result.append(self.__BitList_to_String(processed_block))
- i += 8
- if crypt_type == Des.DECRYPT and self.getPadding():
- s = result[-1]
- while s[-1] == self.getPadding():
- s = s[:-1]
- result[-1] = s
- return ''.join(result)
- def encrypt(self, data, pad=''):
- self.__padding = pad
- return self.crypt(data, Des.ENCRYPT)
- def decrypt(self, data, pad=''):
- self.__padding = pad
- return self.crypt(data, Des.DECRYPT)
-
-class Sectionizer:
- def __init__(self, filename, ident):
- self.contents = file(filename, 'rb').read()
- self.header = self.contents[0:72]
- if DEBUG:
- file("header.dat", 'wb').write(self.header)
-
- self.num_sections, = struct.unpack('>H', self.contents[76:78])
- if DEBUG:
- print "number of sections: %d" % self.num_sections
- if self.header[0x3C:0x3C+8] != ident:
- raise ValueError('Invalid file format')
- self.sections = []
- for i in xrange(self.num_sections):
- offset, a1,a2,a3,a4 = struct.unpack('>LBBBB', self.contents[78+i*8:78+i*8+8])
- flags, val = a1, a2<<16|a3<<8|a4
- if DEBUG:
- print "section %d offset %d" % ( i, offset )
- self.sections.append( (offset, flags, val) )
- def loadSection(self, section):
- if section + 1 == self.num_sections:
- end_off = len(self.contents)
- else:
- end_off = self.sections[section + 1][0]
- off = self.sections[section][0]
- return self.contents[off:end_off]
+# 0.06 - Merge of 0.04 and 0.05. Improved HTML output
+# Placed images in subfolder, so that it's possible to just
+# drop the book.pml file onto DropBook to make an unencrypted
+# copy of the eReader file.
+# Using that with Calibre works a lot better than the HTML
+# conversion in this code.
+
+__version__='0.06'
+DEBUG = 0
+
+
+# Import Psyco if available
+try:
+ # Dumb speed hack 1
+ # http://psyco.sourceforge.net
+ import psyco
+ psyco.full()
+ pass
+except ImportError:
+ pass
+try:
+ # Dumb speed hack 2
+ # All map() calls converted to list comprehension (some use zip)
+ # override zip with izip - saves memory and in rough testing
+ # appears to be faster zip() is only used in the converted map() calls
+ from itertools import izip as zip
+except ImportError:
+ pass
+
+import struct, binascii, zlib, os, sys, os.path, urllib
+try:
+ from hashlib import sha1
+except ImportError:
+ # older Python release
+ import sha
+ sha1 = lambda s: sha.new(s)
+import cgi
+import logging
+
+logging.basicConfig()
+#logging.basicConfig(level=logging.DEBUG)
+
+write_pml=False
+
+ECB = 0
+CBC = 1
+class Des(object):
+ __pc1 = [56, 48, 40, 32, 24, 16, 8, 0, 57, 49, 41, 33, 25, 17,
+ 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51, 43, 35,
+ 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21,
+ 13, 5, 60, 52, 44, 36, 28, 20, 12, 4, 27, 19, 11, 3]
+ __left_rotations = [1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1]
+ __pc2 = [13, 16, 10, 23, 0, 4,2, 27, 14, 5, 20, 9,
+ 22, 18, 11, 3, 25, 7, 15, 6, 26, 19, 12, 1,
+ 40, 51, 30, 36, 46, 54, 29, 39, 50, 44, 32, 47,
+ 43, 48, 38, 55, 33, 52, 45, 41, 49, 35, 28, 31]
+ __ip = [57, 49, 41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3,
+ 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7,
+ 56, 48, 40, 32, 24, 16, 8, 0, 58, 50, 42, 34, 26, 18, 10, 2,
+ 60, 52, 44, 36, 28, 20, 12, 4, 62, 54, 46, 38, 30, 22, 14, 6]
+ __expansion_table = [31, 0, 1, 2, 3, 4, 3, 4, 5, 6, 7, 8,
+ 7, 8, 9, 10, 11, 12,11, 12, 13, 14, 15, 16,
+ 15, 16, 17, 18, 19, 20,19, 20, 21, 22, 23, 24,
+ 23, 24, 25, 26, 27, 28,27, 28, 29, 30, 31, 0]
+ __sbox = [[14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7,
+ 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8,
+ 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0,
+ 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13],
+ [15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10,
+ 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5,
+ 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15,
+ 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9],
+ [10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8,
+ 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1,
+ 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7,
+ 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12],
+ [7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15,
+ 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9,
+ 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4,
+ 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14],
+ [2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9,
+ 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6,
+ 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14,
+ 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3],
+ [12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11,
+ 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8,
+ 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6,
+ 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13],
+ [4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1,
+ 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6,
+ 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2,
+ 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12],
+ [13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7,
+ 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2,
+ 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8,
+ 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11],]
+ __p = [15, 6, 19, 20, 28, 11,27, 16, 0, 14, 22, 25,
+ 4, 17, 30, 9, 1, 7,23,13, 31, 26, 2, 8,18, 12, 29, 5, 21, 10,3, 24]
+ __fp = [39, 7, 47, 15, 55, 23, 63, 31,38, 6, 46, 14, 54, 22, 62, 30,
+ 37, 5, 45, 13, 53, 21, 61, 29,36, 4, 44, 12, 52, 20, 60, 28,
+ 35, 3, 43, 11, 51, 19, 59, 27,34, 2, 42, 10, 50, 18, 58, 26,
+ 33, 1, 41, 9, 49, 17, 57, 25,32, 0, 40, 8, 48, 16, 56, 24]
+ # Type of crypting being done
+ ENCRYPT = 0x00
+ DECRYPT = 0x01
+ def __init__(self, key, mode=ECB, IV=None):
+ if len(key) != 8:
+ raise ValueError("Invalid DES key size. Key must be exactly 8 bytes long.")
+ self.block_size = 8
+ self.key_size = 8
+ self.__padding = ''
+ self.setMode(mode)
+ if IV:
+ self.setIV(IV)
+ self.L = []
+ self.R = []
+ self.Kn = [ [0] * 48 ] * 16 # 16 48-bit keys (K1 - K16)
+ self.final = []
+ self.setKey(key)
+ def getKey(self):
+ return self.__key
+ def setKey(self, key):
+ self.__key = key
+ self.__create_sub_keys()
+ def getMode(self):
+ return self.__mode
+ def setMode(self, mode):
+ self.__mode = mode
+ def getIV(self):
+ return self.__iv
+ def setIV(self, IV):
+ if not IV or len(IV) != self.block_size:
+ raise ValueError("Invalid Initial Value (IV), must be a multiple of " + str(self.block_size) + " bytes")
+ self.__iv = IV
+ def getPadding(self):
+ return self.__padding
+ def __String_to_BitList(self, data):
+ l = len(data) * 8
+ result = [0] * l
+ pos = 0
+ for c in data:
+ i = 7
+ ch = ord(c)
+ while i >= 0:
+ if ch & (1 << i) != 0:
+ result[pos] = 1
+ else:
+ result[pos] = 0
+ pos += 1
+ i -= 1
+ return result
+ def __BitList_to_String(self, data):
+ result = ''
+ pos = 0
+ c = 0
+ while pos < len(data):
+ c += data[pos] << (7 - (pos % 8))
+ if (pos % 8) == 7:
+ result += chr(c)
+ c = 0
+ pos += 1
+ return result
+ def __permutate(self, table, block):
+ return [block[x] for x in table]
+ def __create_sub_keys(self):
+ key = self.__permutate(Des.__pc1, self.__String_to_BitList(self.getKey()))
+ i = 0
+ self.L = key[:28]
+ self.R = key[28:]
+ while i < 16:
+ j = 0
+ while j < Des.__left_rotations[i]:
+ self.L.append(self.L[0])
+ del self.L[0]
+ self.R.append(self.R[0])
+ del self.R[0]
+ j += 1
+ self.Kn[i] = self.__permutate(Des.__pc2, self.L + self.R)
+ i += 1
+ def __des_crypt(self, block, crypt_type):
+ block = self.__permutate(Des.__ip, block)
+ self.L = block[:32]
+ self.R = block[32:]
+ if crypt_type == Des.ENCRYPT:
+ iteration = 0
+ iteration_adjustment = 1
+ else:
+ iteration = 15
+ iteration_adjustment = -1
+ i = 0
+ while i < 16:
+ tempR = self.R[:]
+ self.R = self.__permutate(Des.__expansion_table, self.R)
+ self.R = [x ^ y for x,y in zip(self.R, self.Kn[iteration])]
+ B = [self.R[:6], self.R[6:12], self.R[12:18], self.R[18:24], self.R[24:30], self.R[30:36], self.R[36:42], self.R[42:]]
+ j = 0
+ Bn = [0] * 32
+ pos = 0
+ while j < 8:
+ m = (B[j][0] << 1) + B[j][5]
+ n = (B[j][1] << 3) + (B[j][2] << 2) + (B[j][3] << 1) + B[j][4]
+ v = Des.__sbox[j][(m << 4) + n]
+ Bn[pos] = (v & 8) >> 3
+ Bn[pos + 1] = (v & 4) >> 2
+ Bn[pos + 2] = (v & 2) >> 1
+ Bn[pos + 3] = v & 1
+ pos += 4
+ j += 1
+ self.R = self.__permutate(Des.__p, Bn)
+ self.R = [x ^ y for x, y in zip(self.R, self.L)]
+ self.L = tempR
+ i += 1
+ iteration += iteration_adjustment
+ self.final = self.__permutate(Des.__fp, self.R + self.L)
+ return self.final
+ def crypt(self, data, crypt_type):
+ if not data:
+ return ''
+ if len(data) % self.block_size != 0:
+ if crypt_type == Des.DECRYPT: # Decryption must work on 8 byte blocks
+ raise ValueError("Invalid data length, data must be a multiple of " + str(self.block_size) + " bytes\n.")
+ if not self.getPadding():
+ raise ValueError("Invalid data length, data must be a multiple of " + str(self.block_size) + " bytes\n. Try setting the optional padding character")
+ else:
+ data += (self.block_size - (len(data) % self.block_size)) * self.getPadding()
+ if self.getMode() == CBC:
+ if self.getIV():
+ iv = self.__String_to_BitList(self.getIV())
+ else:
+ raise ValueError("For CBC mode, you must supply the Initial Value (IV) for ciphering")
+ i = 0
+ dict = {}
+ result = []
+ while i < len(data):
+ block = self.__String_to_BitList(data[i:i+8])
+ if self.getMode() == CBC:
+ if crypt_type == Des.ENCRYPT:
+ block = [x ^ y for x, y in zip(block, iv)]
+ processed_block = self.__des_crypt(block, crypt_type)
+ if crypt_type == Des.DECRYPT:
+ processed_block = [x ^ y for x, y in zip(processed_block, iv)]
+ iv = block
+ else:
+ iv = processed_block
+ else:
+ processed_block = self.__des_crypt(block, crypt_type)
+ result.append(self.__BitList_to_String(processed_block))
+ i += 8
+ if crypt_type == Des.DECRYPT and self.getPadding():
+ s = result[-1]
+ while s[-1] == self.getPadding():
+ s = s[:-1]
+ result[-1] = s
+ return ''.join(result)
+ def encrypt(self, data, pad=''):
+ self.__padding = pad
+ return self.crypt(data, Des.ENCRYPT)
+ def decrypt(self, data, pad=''):
+ self.__padding = pad
+ return self.crypt(data, Des.DECRYPT)
+
+class Sectionizer(object):
+ def __init__(self, filename, ident):
+ self.contents = file(filename, 'rb').read()
+ self.header = self.contents[0:72]
+ if DEBUG:
+ file("header.dat", 'wb').write(self.header)
+
+ self.num_sections, = struct.unpack('>H', self.contents[76:78])
+ if DEBUG:
+ print "number of sections: %d" % self.num_sections
+ if self.header[0x3C:0x3C+8] != ident:
+ raise ValueError('Invalid file format')
+ self.sections = []
+ for i in xrange(self.num_sections):
+ offset, a1,a2,a3,a4 = struct.unpack('>LBBBB', self.contents[78+i*8:78+i*8+8])
+ flags, val = a1, a2<<16|a3<<8|a4
+ if DEBUG:
+ print "section %d offset %d" % ( i, offset )
+ self.sections.append( (offset, flags, val) )
+ def loadSection(self, section):
+ if section + 1 == self.num_sections:
+ end_off = len(self.contents)
+ else:
+ end_off = self.sections[section + 1][0]
+ off = self.sections[section][0]
+ return self.contents[off:end_off]
def sanitizeFileName(s):
- r = ''
- for c in s.lower():
- if c in "abcdefghijklmnopqrstuvwxyz0123456789_.-":
- r += c
- return r
+ r = ''
+ for c in s.lower():
+ if c in "abcdefghijklmnopqrstuvwxyz0123456789_.-":
+ r += c
+ return r
def fixKey(key):
- def fixByte(b):
- return b ^ ((b ^ (b<<1) ^ (b<<2) ^ (b<<3) ^ (b<<4) ^ (b<<5) ^ (b<<6) ^ (b<<7) ^ 0x80) & 0x80)
- return "".join([chr(fixByte(ord(a))) for a in key])
+ def fixByte(b):
+ return b ^ ((b ^ (b<<1) ^ (b<<2) ^ (b<<3) ^ (b<<4) ^ (b<<5) ^ (b<<6) ^ (b<<7) ^ 0x80) & 0x80)
+ return "".join([chr(fixByte(ord(a))) for a in key])
def deXOR(text, sp, table):
- r=''
- j = sp
- for i in xrange(len(text)):
- r += chr(ord(table[j]) ^ ord(text[i]))
- j = j + 1
- if j == len(table):
- j = 0
- return r
-
-
-class EreaderProcessor:
- def __init__(self, section_reader, username, creditcard):
- self.section_reader = section_reader
- data = section_reader(0)
- self.data0 = data
- if DEBUG:
- file("data0.dat", 'wb').write(self.data0)
- version, = struct.unpack('>H', data[0:2])
- if version != 272 and version != 260:
- raise ValueError('incorrect eReader version %d (error 1)' % version)
- data = section_reader(1)
- self.data = data
- des = Des(fixKey(data[0:8]))
- # first key is used on last 8 bytes of data to get cookie_shuf and cookie_size
- self.first_key = data[0:8]
- self.end_key = des.decrypt(data[-8:])
- cookie_shuf, cookie_size = struct.unpack('>LL', des.decrypt(data[-8:]))
- if cookie_shuf < 3 or cookie_shuf > 0x14 or cookie_size < 0xf0 or cookie_size > 0x200:
- raise ValueError('incorrect eReader version (error 2)')
- # first key is also used to decrypt all remaining bytes in data into their shuffled version
- input = des.decrypt(data[-cookie_size:])
-
- # now unshuffle it
- def unshuff(data, shuf):
- r = [''] * len(data)
- j = 0
- for i in xrange(len(data)):
- j = (j + shuf) % len(data)
- r[j] = data[i]
- assert len("".join(r)) == len(data)
- return "".join(r)
- r = unshuff(input[0:-8], cookie_shuf)
-
- def fixUsername(s):
- r = ''
- for c in s.lower():
- if (c >= 'a' and c <= 'z' or c >= '0' and c <= '9'):
- r += c
- return r
-
- user_key = struct.pack('>LL', binascii.crc32(fixUsername(username)) & 0xffffffff, binascii.crc32(creditcard[-8:])& 0xffffffff)
- # second key is made of of user private info i.e. name and crediticard info
- self.user_key = user_key
-
- if DEBUG:
- file("mainrecord.dat", 'wb').write(r)
-
- # the unshuffled data is examined to find record information
- drm_sub_version = struct.unpack('>H', r[0:2])[0]
- self.num_text_pages = struct.unpack('>H', r[2:4])[0] - 1
- self.num_image_pages = struct.unpack('>H', r[26:26+2])[0]
- self.first_image_page = struct.unpack('>H', r[24:24+2])[0]
-
- if version == 272:
- self.num_chapter_pages = struct.unpack('>H', r[22:22+2])[0]
- self.first_chapter_page = struct.unpack('>H', r[20:20+2])[0]
-
- self.num_link_pages = struct.unpack('>H', r[30:30+2])[0]
- self.first_link_page = struct.unpack('>H', r[28:28+2])[0]
-
- self.num_bkinfo_pages = struct.unpack('>H', r[34:34+2])[0]
- self.first_bkinfo_page = struct.unpack('>H', r[32:32+2])[0]
-
- self.num_fnote_pages = struct.unpack('>H', r[46:46+2])[0]
- self.first_fnote_page = struct.unpack('>H', r[44:44+2])[0]
-
- self.num_xtextsize_pages = struct.unpack('>H', r[54:54+2])[0]
- self.first_xtextsize_page = struct.unpack('>H', r[52:52+2])[0]
-
- self.num_sidebar_pages = struct.unpack('>H', r[38:38+2])[0]
- self.first_sidebar_page = struct.unpack('>H', r[36:36+2])[0]
-
- # **before** data record 1 was decrypted and unshuffled, it contained data
- # to create an XOR table and which is used to fix footnote record 0, link records, chapter records, etc
- self.xortable_offset = struct.unpack('>H', r[40:40+2])[0]
- self.xortable_size = struct.unpack('>H', r[42:42+2])[0]
- self.xortable = self.data[self.xortable_offset:self.xortable_offset + self.xortable_size]
- else:
- self.num_chapter_pages = 0
- self.num_link_pages = 0
- self.num_bkinfo_pages = 0
- self.num_fnote_pages = 0
- self.num_xtextsize_pages = 0
- self.num_sidebar_pages = 0
- self.first_chapter_pages = -1
- self.first_link_pages = -1
- self.first_bkinfo_pages = -1
- self.first_fnote_pages = -1
- self.first_xtextsize_pages = -1
- self.first_sidebar_pages = -1
-
- if DEBUG:
- print "num_text_pages: %d" % self.num_text_pages
- print "first_text_page: %d" % 1
-
- print "num_chapter_pages: %d" % self.num_chapter_pages
- print "first_chapter_page: %d" % self.first_chapter_page
-
- print "num_image_pages: %d" % self.num_image_pages
- print "first_image_page: %d" % self.first_image_page
-
- print "num_fnote_pages: %d" % self.num_fnote_pages
- print "first_fnote_page: %d" % self.first_fnote_page
-
- print "num_link_pages: %d" % self.num_link_pages
- print "first_link_page: %d" % self.first_link_page
-
- print "num_bkinfo_pages: %d" % self.num_bkinfo_pages
- print "first_bkinfo_page: %d" % self.first_bkinfo_page
-
- print "num_xtextsize_pages: %d" % self.num_xtextsize_pages
- print "first_xtextsize_page: %d" % self.first_xtextsize_page
-
- print "num_sidebar_pages: %d" % self.num_sidebar_pages
- print "first_sidebar_page: %d" % self.first_sidebar_page
-
- self.flags = struct.unpack('>L', r[4:8])[0]
- reqd_flags = (1<<9) | (1<<7) | (1<<10)
- if (self.flags & reqd_flags) != reqd_flags:
- print "Flags: 0x%X" % self.flags
- raise ValueError('incompatible eReader file')
- # the user_key is used to unpack the encrypted key which is stored in the unshuffled data
- des = Des(fixKey(user_key))
-
- if version == 260:
- if drm_sub_version != 13:
- raise ValueError('incorrect eReader version %d (error 3)' % drm_sub_version)
- encrypted_key = r[44:44+8]
- encrypted_key_sha = r[52:52+20]
- elif version == 272:
- encrypted_key = r[172:172+8]
- encrypted_key_sha = r[56:56+20]
-
- # the decrypted version of encrypted_key is the content_key
- self.content_key = des.decrypt(encrypted_key)
-
- if sha.new(self.content_key).digest() != encrypted_key_sha:
- raise ValueError('Incorrect Name and/or Credit Card')
-
-
- def getNumImages(self):
- return self.num_image_pages
-
- def getImage(self, i):
- sect = self.section_reader(self.first_image_page + i)
- name = sect[4:4+32].strip('\0')
- data = sect[62:]
- return sanitizeFileName(name), data
-
- def getChapterNamePMLOffsetData(self):
- cv = ''
- if self.num_chapter_pages > 0:
- # now dump chapter offsets and chapter names
- # see mobile read wiki for details
- for i in xrange(self.num_chapter_pages):
- chaps = self.section_reader(self.first_chapter_page + i)
- j = i % self.xortable_size
- cv += deXOR(chaps, j, self.xortable)
- return cv
-
- def getLinkNamePMLOffsetData(self):
- lv = ''
- if self.num_link_pages > 0:
- # now dump link offset and link names
- # see mobileread wiki for details
- for i in xrange(self.num_link_pages):
- links = self.section_reader(self.first_link_page + i)
- j = i % self.xortable_size
- lv += deXOR(links, j, self.xortable)
- return lv
-
-
- def getBookInfoData(self):
- bi = ''
- if self.num_bkinfo_pages > 0:
- # now dump book information
- # see mobileread wiki for details
- for i in xrange(self.num_bkinfo_pages):
- binfo = self.section_reader(self.first_bkinfo_page + i)
- j = i % self.xortable_size
- bi += deXOR(binfo, j, self.xortable)
- return bi
-
-
- def getExpandedTextSizesData(self):
- ts = ''
- if self.num_xtextsize_pages > 0:
- # now dump table of expanded sizes for each text page
- # (two bytes for each text page - see mobileread wiki for details)
- for i in xrange(self.num_xtextsize_pages):
- tsize = self.section_reader(self.first_xtextsize_page + i)
- j = i % self.xortable_size
- ts += deXOR(tsize, j, self.xortable)
- return ts
-
- def getText(self):
- # uses the content_key and zlib to decrypt and then inflate text sections
- des = Des(fixKey(self.content_key))
- r = ''
- for i in xrange(self.num_text_pages):
- r += zlib.decompress(des.decrypt(self.section_reader(1 + i)))
+ r=''
+ j = sp
+ for i in xrange(len(text)):
+ r += chr(ord(table[j]) ^ ord(text[i]))
+ j = j + 1
+ if j == len(table):
+ j = 0
+ return r
+
+class EreaderProcessor(object):
+ def __init__(self, section_reader, username, creditcard):
+ self.section_reader = section_reader
+ data = section_reader(0)
+ self.data0 = data
+ if DEBUG:
+ file("data0.dat", 'wb').write(self.data0)
+ version, = struct.unpack('>H', data[0:2])
+ self.version = version
+ logging.info('eReader file format version %s', version)
+ if version != 272 and version != 260 and version != 259:
+ raise ValueError('incorrect eReader version %d (error 1)' % version)
+ data = section_reader(1)
+ self.data = data
+ # first key is used on last 8 bytes of data to get cookie_shuf and cookie_size
+ self.first_key = data[0:8]
+ des = Des(fixKey(self.first_key))
+ self.end_key = des.decrypt(data[-8:])
+ cookie_shuf, cookie_size = struct.unpack('>LL', self.end_key)
+ if cookie_shuf < 3 or cookie_shuf > 0x14 or cookie_size < 0xf0 or cookie_size > 0x200:
+ raise ValueError('incorrect eReader version (error 2)')
+ # first key is also used to decrypt all remaining bytes in data into their shuffled version
+ cookie = des.decrypt(data[-cookie_size:])
+
+ # now unshuffle it
+ def unshuff(data, shuf):
+ r = [''] * len(data)
+ j = 0
+ for i in xrange(len(data)):
+ j = (j + shuf) % len(data)
+ r[j] = data[i]
+ assert len("".join(r)) == len(data)
+ return "".join(r)
+ r = unshuff(cookie[0:-8], cookie_shuf)
+ if DEBUG:
+ file("mainrecord.dat", 'wb').write(r)
+
+ def fixUsername(s):
+ r = ''
+ for c in s.lower():
+ if (c >= 'a' and c <= 'z' or c >= '0' and c <= '9'):
+ r += c
+ return r
+
+ # second key is made of of user private info i.e. name and crediticard info
+ user_key = struct.pack('>LL', binascii.crc32(fixUsername(username)) & 0xffffffff, binascii.crc32(creditcard[-8:])& 0xffffffff)
+ self.user_key = user_key
+
+ # the unshuffled data is examined to find record information
+ drm_sub_version = struct.unpack('>H', r[0:2])[0]
+ self.num_text_pages = struct.unpack('>H', r[2:4])[0] - 1
+ self.num_image_pages = struct.unpack('>H', r[26:26+2])[0]
+ self.first_image_page = struct.unpack('>H', r[24:24+2])[0]
+
+ if version == 272:
+ self.num_chapter_pages = struct.unpack('>H', r[22:22+2])[0]
+ self.first_chapter_page = struct.unpack('>H', r[20:20+2])[0]
+
+ self.num_link_pages = struct.unpack('>H', r[30:30+2])[0]
+ self.first_link_page = struct.unpack('>H', r[28:28+2])[0]
+
+ self.num_bkinfo_pages = struct.unpack('>H', r[34:34+2])[0]
+ self.first_bkinfo_page = struct.unpack('>H', r[32:32+2])[0]
+
+ self.num_footnote_pages = struct.unpack('>H', r[46:46+2])[0]
+ self.first_footnote_page = struct.unpack('>H', r[44:44+2])[0]
+
+ self.num_xtextsize_pages = struct.unpack('>H', r[54:54+2])[0]
+ self.first_xtextsize_page = struct.unpack('>H', r[52:52+2])[0]
+
+ self.num_sidebar_pages = struct.unpack('>H', r[38:38+2])[0]
+ self.first_sidebar_page = struct.unpack('>H', r[36:36+2])[0]
+
+ # **before** data record 1 was decrypted and unshuffled, it contained data
+ # to create an XOR table and which is used to fix footnote record 0, link records, chapter records, etc
+ self.xortable_offset = struct.unpack('>H', r[40:40+2])[0]
+ self.xortable_size = struct.unpack('>H', r[42:42+2])[0]
+ self.xortable = self.data[self.xortable_offset:self.xortable_offset + self.xortable_size]
+ else:
+ self.num_chapter_pages = 0
+ self.num_link_pages = 0
+ self.num_bkinfo_pages = 0
+ self.num_footnote_pages = 0
+ self.num_xtextsize_pages = 0
+ self.num_sidebar_pages = 0
+ self.first_chapter_page = -1
+ self.first_link_page = -1
+ self.first_bkinfo_page = -1
+ self.first_footnote_page = -1
+ self.first_xtextsize_page = -1
+ self.first_sidebar_page = -1
+
+ if DEBUG:
+ print "num_text_pages: %d" % self.num_text_pages
+ print "first_text_page: %d" % 1
+
+ print "num_chapter_pages: %d" % self.num_chapter_pages
+ print "first_chapter_page: %d" % self.first_chapter_page
+
+ print "num_image_pages: %d" % self.num_image_pages
+ print "first_image_page: %d" % self.first_image_page
+
+ print "num_footnote_pages: %d" % self.num_footnote_pages
+ print "first_footnote_page: %d" % self.first_footnote_page
+
+ print "num_link_pages: %d" % self.num_link_pages
+ print "first_link_page: %d" % self.first_link_page
+
+ print "num_bkinfo_pages: %d" % self.num_bkinfo_pages
+ print "first_bkinfo_page: %d" % self.first_bkinfo_page
+
+ print "num_xtextsize_pages: %d" % self.num_xtextsize_pages
+ print "first_xtextsize_page: %d" % self.first_xtextsize_page
+
+ print "num_sidebar_pages: %d" % self.num_sidebar_pages
+ print "first_sidebar_page: %d" % self.first_sidebar_page
+
+ logging.debug('self.num_text_pages %d', self.num_text_pages)
+ logging.debug('self.num_footnote_pages %d, self.first_footnote_page %d', self.num_footnote_pages , self.first_footnote_page)
+
+ self.flags = struct.unpack('>L', r[4:8])[0]
+ reqd_flags = (1<<9) | (1<<7) | (1<<10)
+ if (self.flags & reqd_flags) != reqd_flags:
+ print "Flags: 0x%X" % self.flags
+ raise ValueError('incompatible eReader file')
+ # the user_key is used to unpack the encrypted key which is stored in the unshuffled data
+ des = Des(fixKey(user_key))
+ if version == 259:
+ if drm_sub_version != 7:
+ raise ValueError('incorrect eReader version %d (error 3)' % drm_sub_version)
+ encrypted_key_sha = r[44:44+20]
+ encrypted_key = r[64:64+8]
+ elif version == 260:
+ if drm_sub_version != 13:
+ raise ValueError('incorrect eReader version %d (error 3)' % drm_sub_version)
+ encrypted_key = r[44:44+8]
+ encrypted_key_sha = r[52:52+20]
+ elif version == 272:
+ encrypted_key = r[172:172+8]
+ encrypted_key_sha = r[56:56+20]
+
+ # the decrypted version of encrypted_key is the content_key
+ self.content_key = des.decrypt(encrypted_key)
+
+ if sha1(self.content_key).digest() != encrypted_key_sha:
+ raise ValueError('Incorrect Name and/or Credit Card')
+
+ def getNumImages(self):
+ return self.num_image_pages
+
+ def getImage(self, i):
+ sect = self.section_reader(self.first_image_page + i)
+ name = sect[4:4+32].strip('\0')
+ data = sect[62:]
+ return sanitizeFileName(name), data
+
+
+ def getChapterNamePMLOffsetData(self):
+ cv = ''
+ if self.num_chapter_pages > 0:
+ # now dump chapter offsets and chapter names
+ # see mobile read wiki for details
+ for i in xrange(self.num_chapter_pages):
+ chaps = self.section_reader(self.first_chapter_page + i)
+ j = i % self.xortable_size
+ cv += deXOR(chaps, j, self.xortable)
+ return cv
+
+ def getLinkNamePMLOffsetData(self):
+ lv = ''
+ if self.num_link_pages > 0:
+ # now dump link offset and link names
+ # see mobileread wiki for details
+ for i in xrange(self.num_link_pages):
+ links = self.section_reader(self.first_link_page + i)
+ j = i % self.xortable_size
+ lv += deXOR(links, j, self.xortable)
+ return lv
+
+
+ def getBookInfoData(self):
+ bi = ''
+ if self.num_bkinfo_pages > 0:
+ # now dump book information
+ # see mobileread wiki for details
+ for i in xrange(self.num_bkinfo_pages):
+ binfo = self.section_reader(self.first_bkinfo_page + i)
+ j = i % self.xortable_size
+ bi += deXOR(binfo, j, self.xortable)
+ return bi
+
+
+ def getExpandedTextSizesData(self):
+ ts = ''
+ if self.num_xtextsize_pages > 0:
+ # now dump table of expanded sizes for each text page
+ # (two bytes for each text page - see mobileread wiki for details)
+ for i in xrange(self.num_xtextsize_pages):
+ tsize = self.section_reader(self.first_xtextsize_page + i)
+ j = i % self.xortable_size
+ ts += deXOR(tsize, j, self.xortable)
+ return ts
+
+ def getText(self):
+ # uses the content_key and zlib to decrypt and then inflate text sections
+ des = Des(fixKey(self.content_key))
+ r = ''
+ for i in xrange(self.num_text_pages):
+ logging.debug('get page %d', i)
+ r += zlib.decompress(des.decrypt(self.section_reader(1 + i)))
- # now handle footnotes pages
- if self.num_fnote_pages > 0:
- # the first record of the footnote section must pass through the Xor Table to make it useful
- sect = self.section_reader(self.first_fnote_page)
- fnote_ids = deXOR(sect, 0, self.xortable)
- p = 0
- # the remaining records of the footnote sections need to be decoded with the content_key and zlib inflated
- des = Des(fixKey(self.content_key))
- r += '\\w="100%"'
- r += 'Footnotes\p'
- for i in xrange(1,self.num_fnote_pages):
- id_len = ord(fnote_ids[2])
- id = fnote_ids[3:3+id_len]
- fmarker='\Q="%s"' % id
- r+=fmarker
- r += zlib.decompress(des.decrypt(self.section_reader(self.first_fnote_page + i)))
- r += '\n'
- fnote_ids = fnote_ids[id_len+4:]
-
- # TO-DO - handle sidebar pages similar to footnotes pages
-
- return r
-
-
-class PmlConverter:
- def __init__(self, s):
- self.s = s
- self.pos = 0
- def nextOptAttr(self):
- p = self.pos
- if self.s[p:p+2] != '="':
- return None
- r = ''
- p += 2
- while self.s[p] != '"':
- r += self.s[p]
- p += 1
- self.pos = p + 1
- return r
- def next(self):
- p = self.pos
- if p >= len(self.s):
- return None
- if self.s[p] != '\\':
- res = self.s.find('\\', p)
- if res == -1:
- res = len(self.s)
- self.pos = res
- return self.s[p : res], None, None
- c = self.s[p+1]
- if c in 'pxcriuovtnsblBk-lI\\d':
- self.pos = p + 2
- return None, c, None
- if c in 'TwmqQ':
- self.pos = p + 2
- return None, c, self.nextOptAttr()
- if c == 'a':
- self.pos = p + 5
- return None, c, int(self.s[p+2:p+5])
- if c == 'U':
- self.pos = p + 6
- return None, c, int(self.s[p+2:p+6], 16)
- c = self.s[p+1:p+1+2]
- if c in ('X0','X1','X2','X3','X4','Sp','Sb'):
- self.pos = p + 3
- return None, c, None
- if c in ('C0','C1','C2','C3','C4','Fn','Sd'):
- self.pos = p + 3
- return None, c, self.nextOptAttr()
- print "unknown escape code %s" % c
- self.pos = p + 1
- return None, None, None
- def linkPrinter(link):
- return '<a href="%s">' % link
- def ilinkPrinter(link):
- return '<a href="#%s">' % link
-
- html_tags = {
- 'c' : ('<p align="center">', '</p>'),
- 'r' : ('<p align="right">', '</p>'),
- 'i' : ('<i>', '</i>'),
- 'u' : ('<u>', '</u>'),
- 'b' : ('<strong>', '</strong>'),
- 'B' : ('<strong>', '</strong>'),
- 'o' : ('<strike>', '</strike>'),
- 'v' : ('<!-- ', ' -->'),
- 't' : ('', ''),
- 'Sb' : ('<sub>', '</sub>'),
- 'Sp' : ('<sup>', '</sup>'),
- 'X0' : ('<h1>', '</h1>'),
- 'X1' : ('<h2>', '</h2>'),
- 'X2' : ('<h3>', '</h3>'),
- 'X3' : ('<h4>', '</h4>'),
- 'X4' : ('<h5>', '</h5>'),
- 'l' : ('<font size="+2">', '</font>'),
- 'q' : (linkPrinter, '</a>'),
- 'Fn' : (ilinkPrinter, '</a>'),
- }
- html_one_tags = {
- 'p' : '<br><br>'
- }
- pml_chars = {
- 160 : ' ',130 : '—',131: 'ƒ',132: '„',
- 133: '…',134: '†',135: '‡',138: 'Š',
- 139: '‹',140: 'Œ',145: '‘',146: '’',
- 147: '“',148: '”',149: '•',150: '–',
- 151: '—',153: '™',154: 'š',155: '›',
- 156: 'œ',159: 'Ÿ'
- }
- def process(self):
- final = '<html><body>\n'
- in_tags = []
- def makeText(s):
- s = s.replace('&', '&')
- #s = s.replace('"', '"')
- s = s.replace('<', '<')
- s = s.replace('>', '>')
- s = s.replace('\n', '<br>\n')
- return s
- while True:
- r = self.next()
- if not r:
- break
- text, cmd, attr = r
- if text:
- final += makeText(text)
- if cmd:
- def getTag(ti, end):
- cmd, attr = ti
- r = self.html_tags[cmd][end]
- if type(r) != str:
- r = r(attr)
- return r
-
- if cmd in self.html_tags:
- pair = (cmd, attr)
- if cmd not in [a for (a,b) in in_tags]:
- final += getTag(pair, False)
- in_tags.append(pair)
- else:
- j = len(in_tags)
- while True:
- j = j - 1
- final += getTag(in_tags[j], True)
- if in_tags[j][0] == cmd:
- break
- del in_tags[j]
- while j < len(in_tags):
- final += getTag(in_tags[j], False)
- j = j + 1
-
- if cmd in self.html_one_tags:
- final += self.html_one_tags[cmd]
- if cmd == 'm':
- final += '<img src="%s">' % attr
- if cmd == 'Q':
- final += '<a name="%s" id="%s"> </a>' % (attr, attr)
- if cmd == 'a':
- final += self.pml_chars.get(attr, '&#%d;' % attr)
- if cmd == 'U':
- final += '&#%d;' % attr
- final += '</body></html>\n'
- while True:
- s = final.replace('<br>\n<br>\n<br>\n', '<br>\n<br>\n')
- if s == final:
- break
- final = s
- return final
+ # now handle footnotes pages
+ if self.num_footnote_pages > 0:
+ # the first record of the footnote section must pass through the Xor Table to make it useful
+ sect = self.section_reader(self.first_footnote_page)
+ fnote_ids = deXOR(sect, 0, self.xortable)
+ p = 0
+ # the remaining records of the footnote sections need to be decoded with the content_key and zlib inflated
+ des = Des(fixKey(self.content_key))
+ r += '\\w="100%"'
+ r += 'Footnotes\p'
+ for i in xrange(1,self.num_footnote_pages):
+ id_len = ord(fnote_ids[2])
+ id = fnote_ids[3:3+id_len]
+ fmarker='\Q="%s"' % id
+ r+=fmarker
+ r += zlib.decompress(des.decrypt(self.section_reader(self.first_footnote_page + i)))
+ r += '\n'
+ fnote_ids = fnote_ids[id_len+4:]
+
+ # TO-DO - handle sidebar pages similar to footnotes pages
+
+ return r
+
+class PmlConverter(object):
+ def __init__(self, s):
+ self.s = s
+ self.pos = 0
+ def nextOptAttr(self):
+ p = self.pos
+ if self.s[p:p+2] != '="':
+ return None
+ r = ''
+ p += 2
+ while self.s[p] != '"':
+ r += self.s[p]
+ p += 1
+ self.pos = p + 1
+ return r
+ def next(self):
+ p = self.pos
+ if p >= len(self.s):
+ return None
+ if self.s[p] != '\\':
+ res = self.s.find('\\', p)
+ if res == -1:
+ res = len(self.s)
+ self.pos = res
+ return self.s[p : res], None, None
+ c = self.s[p+1]
+ if c in 'pxcriuovtnsblBk-lI\\d':
+ self.pos = p + 2
+ return None, c, None
+ if c in 'TwmqQ':
+ self.pos = p + 2
+ return None, c, self.nextOptAttr()
+ if c == 'a':
+ self.pos = p + 5
+ return None, c, int(self.s[p+2:p+5])
+ if c == 'U':
+ self.pos = p + 6
+ return None, c, int(self.s[p+2:p+6], 16)
+ c = self.s[p+1:p+1+2]
+ if c in ('X0','X1','X2','X3','X4','Sp','Sb'):
+ self.pos = p + 3
+ return None, c, None
+ if c in ('C0','C1','C2','C3','C4','Fn','Sd'):
+ self.pos = p + 3
+ return None, c, self.nextOptAttr()
+ print "unknown escape code %s" % c
+ self.pos = p + 1
+ return None, None, None
+ def linkPrinter(link):
+ return '<a href="%s">' % link
+ def footnotePrinter(link):
+ return '<a href="#%s">' % link ## TODO may need to cgi.escape name....
+ def LinePrinter(link):
+ return '<hr width="%s">' % link
+ def ChapterTitle(link):
+ print "Nonfatal Error: ChapterTitle not implemented."
+ return '<!-- ChapterTitle %s -->' %link
+ def IndentPercent(link):
+ print "Nonfatal Error: IndentPercent not implemented."
+ return '<!-- IndentPercent: %s -->' %link
+ def NormalFont(link):
+ print "Nonfatal Error: NormalFont not implemented."
+ return '<!-- NormalFont %s -->' %link
+ def StdFont(link):
+ print "Nonfatal Error: StdFont not implemented."
+ return '<!-- StdFont: %s -->' %link
+ def SingleBackslash(link):
+ print "Nonfatal Error: SingleBackslash not implemented."
+ return '<!-- SingleBackslash: %s -->' %link
+ def SoftHyphen(link):
+ print "Nonfatal Error: SoftHyphen not implemented."
+ return '<!-- SoftHyphen: %s -->' %link
+ def ReferenceIndexItem(link):
+ print "Nonfatal Error: ReferenceIndexItem not implemented."
+ return '<!-- CReferenceIndexItem: %s -->' %link
+
+
+ # See http://wiki.mobileread.com/wiki/PML#Palm_Markup_Language
+ html_tags = {
+ 'c' : ('<div class="center">', '</div>\n'),
+ 'r' : ('<div class="right">', '</div>\n'),
+ 'i' : ('<i>', '</i>'),
+ 'u' : ('<u>', '</u>'),
+ 'b' : ('<strong>', '</strong>'),
+ 'B' : ('<strong>', '</strong>'),
+ 'o' : ('<strike>', '</strike>'),
+ 'v' : ('<!-- ', ' -->'),
+ 't' : ('', ''),
+ 'Sb' : ('<sub>', '</sub>'),
+ 'Sp' : ('<sup>', '</sup>'),
+ 'X0' : ('<h1>', '</h1>\n'),
+ 'X1' : ('<h2>', '</h2>\n'),
+ 'X2' : ('<h3>', '</h3>\n'),
+ 'X3' : ('<h4>', '</h4>\n'),
+ 'X4' : ('<h5>', '</h5>\n'),
+ 'l' : ('<font size="+2">', '</font>'),
+ 'q' : (linkPrinter, '</a>'),
+ 'Fn' : (footnotePrinter, '</a>'),
+ 'w' : (LinePrinter, ''),
+ #'m' : handled in if block,
+ #'Q' : handled in if block,
+ #'a' : handled in if block,
+ #'U' : handled in if block,
+ 'x' : ('<h1 class="breakbefore">', '</h1>\n'),
+ 'Cn' : (ChapterTitle, ''),
+ 'T' : (IndentPercent, ''),
+ 'n' : (NormalFont, ''),
+ #'s' : (StdFont, ''),
+ 's' : ('', ''),
+ 'k' : ('<span style="font-variant: small-caps;">', '</span>'), # NOTE some pdb's then go ahead and use uppercase letters - which doesn't format the way one would expect (perhaps post process the output with html dom and lower case if only upper case letters are found?)
+ '\\' : (SingleBackslash, ''),
+ '-' : (SoftHyphen, ''),
+ 'I' : (ReferenceIndexItem, ''),
+ 'Sd' : (footnotePrinter, '</a>'), ## untested
+ }
+ html_one_tags = {
+ 'p' : '<p class="breakafter"> </p>\n'
+ }
+ pml_chars = {
+ 160 : ' ',130 : '—',131: 'ƒ',132: '„',
+ 133: '…',134: '†',135: '‡',138: 'Š',
+ 139: '‹',140: 'Œ',145: '‘',146: '’',
+ 147: '“',148: '”',149: '•',150: '–',
+ 151: '—',153: '™',154: 'š',155: '›',
+ 156: 'œ',159: 'Ÿ'
+ }
+ def process(self):
+ final = '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">\n<html>\n<head>\n<meta http-equiv="content-type" content="text/html; charset=windows-1252">\n<style type="text/css">\ndiv.center { text-align:center; }\ndiv.right { text-align:right; }\n.breakbefore { page-break-before: always; }\n.breakafter { page-break-after: always; }\n</style>\n</head>\n<body>\n'
+ in_tags = []
+ def makeText(s):
+ s = s.replace('&', '&')
+ #s = s.replace('"', '"')
+ s = s.replace('<', '<')
+ s = s.replace('>', '>')
+ s = s.replace('\n', '<br>\n')
+ return s
+ while True:
+ r = self.next()
+ if not r:
+ break
+ text, cmd, attr = r
+ if text:
+ final += makeText(text)
+ if cmd:
+ def getTag(ti, end):
+ cmd, attr = ti
+ r = self.html_tags[cmd][end]
+ if type(r) != str:
+ r = r(attr)
+ return r
+
+ if cmd in self.html_tags:
+ pair = (cmd, attr)
+ if cmd not in [a for (a,b) in in_tags]:
+ final += getTag(pair, False)
+ in_tags.append(pair)
+ else:
+ j = len(in_tags)
+ while True:
+ j = j - 1
+ final += getTag(in_tags[j], True)
+ if in_tags[j][0] == cmd:
+ break
+ del in_tags[j]
+ while j < len(in_tags):
+ final += getTag(in_tags[j], False)
+ j = j + 1
+
+ if cmd in self.html_one_tags:
+ final += self.html_one_tags[cmd]
+ if cmd == 'm':
+ unquotedimagepath = bookname + "_img/" + attr
+ imagepath = urllib.quote( unquotedimagepath )
+ final += '<img src="%s" alt="">' % imagepath
+ if cmd == 'Q':
+ final += '<a name="%s" id="%s"> </a>' % (attr, attr)
+ if cmd == 'a':
+ final += self.pml_chars.get(attr, '&#%d;' % attr)
+ if cmd == 'U':
+ final += '&#%d;' % attr
+ final += '</body></html>\n'
+ while True:
+ s = final.replace('<br>\n<br>\n<br>\n', '<br>\n<br>\n')
+ if s == final:
+ break
+ final = s
+ return final
def convertEreaderToHtml(infile, name, cc, outdir):
- if not os.path.exists(outdir):
- os.makedirs(outdir)
- sect = Sectionizer(infile, 'PNRdPPrs')
- er = EreaderProcessor(sect.loadSection, name, cc)
-
- for i in xrange(er.getNumImages()):
- name, contents = er.getImage(i)
- file(os.path.join(outdir, name), 'wb').write(contents)
-
- rawpml = er.getText()
- file(os.path.join(outdir, 'book.pml'),'wb').write(rawpml)
-
- pml = PmlConverter(rawpml)
- file(os.path.join(outdir, 'book.html'),'wb').write(pml.process())
-
- ts = er.getExpandedTextSizesData()
- file(os.path.join(outdir, 'xtextsizes.dat'), 'wb').write(ts)
-
- cv = er.getChapterNamePMLOffsetData()
- file(os.path.join(outdir, 'chapters.dat'), 'wb').write(cv)
-
- bi = er.getBookInfoData()
- file(os.path.join(outdir, 'bookinfo.dat'), 'wb').write(bi)
-
- lv = er.getLinkNamePMLOffsetData()
- file(os.path.join(outdir, 'links.dat'), 'wb').write(lv)
-
-
-print "eReader2Html v0.05. Copyright (c) 2008 The Dark Reverser"
-if len(sys.argv)!=5:
- print "Converts eReader books to HTML"
- print "Usage:"
- print " ereader2html infile.pdb outdir \"your name\" credit_card_number "
- print "Note:"
- print " It's enough to enter the last 8 digits of the credit card number"
-else:
- infile, outdir, name, cc = sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4]
- try:
- print "Processing..."
- convertEreaderToHtml(infile, name, cc, outdir)
- print "done"
- except ValueError, e:
- print "Error: %s" % e
+ if not os.path.exists(outdir):
+ os.makedirs(outdir)
+ sect = Sectionizer(infile, 'PNRdPPrs')
+ er = EreaderProcessor(sect.loadSection, name, cc)
+
+ if er.getNumImages() > 0:
+ imagedir = bookname + "_img"
+ imagedirpath = os.path.join(outdir,imagedir)
+ if not os.path.exists(imagedirpath):
+ os.makedirs(imagedirpath)
+ for i in xrange(er.getNumImages()):
+ name, contents = er.getImage(i)
+ file(os.path.join(imagedirpath, name), 'wb').write(contents)
+
+ pml_string = er.getText()
+ pml = PmlConverter(pml_string)
+ pmlfilename = bookname + ".pml"
+ htmlfilename = bookname + ".html"
+ file(os.path.join(outdir, pmlfilename),'wb').write(pml_string)
+ file(os.path.join(outdir, htmlfilename),'wb').write(pml.process())
+
+ ts = er.getExpandedTextSizesData()
+ file(os.path.join(outdir, 'xtextsizes.dat'), 'wb').write(ts)
+
+ cv = er.getChapterNamePMLOffsetData()
+ file(os.path.join(outdir, 'chapters.dat'), 'wb').write(cv)
+
+ bi = er.getBookInfoData()
+ file(os.path.join(outdir, 'bookinfo.dat'), 'wb').write(bi)
+
+ lv = er.getLinkNamePMLOffsetData()
+ file(os.path.join(outdir, 'links.dat'), 'wb').write(lv)
+
+def main(argv=None):
+ global bookname
+ if argv is None:
+ argv = sys.argv
+
+ print "eReader2Html v%s. Copyright (c) 2008 The Dark Reverser" % __version__
+
+ if len(argv)!=4 and len(argv)!=5:
+ print "Converts DRMed eReader books to PML Source and HTML"
+ print "Usage:"
+ print " ereader2html infile.pdb [outdir] \"your name\" credit_card_number "
+ print "Note:"
+ print " if ommitted, outdir defaults based on 'infile.pdb'"
+ print " It's enough to enter the last 8 digits of the credit card number"
+ else:
+ if len(argv)==4:
+ infile, name, cc = argv[1], argv[2], argv[3]
+ outdir = infile[:-4] + '_Source'
+ elif len(argv)==5:
+ infile, outdir, name, cc = argv[1], argv[2], argv[3], argv[4]
+ bookname = os.path.splitext(os.path.basename(infile))[0]
+
+ try:
+ print "Processing..."
+ import time
+ start_time = time.time()
+ convertEreaderToHtml(infile, name, cc, outdir)
+ end_time = time.time()
+ search_time = end_time - start_time
+ print 'elapsed time: %.2f seconds' % (search_time, )
+ print 'output in %s' % outdir
+ print "done"
+ except ValueError, e:
+ print "Error: %s" % e
+
+if __name__ == "__main__":
+ #import cProfile
+ #command = """sys.exit(main())"""
+ #cProfile.runctx( command, globals(), locals(), filename="cprofile.profile" )
+
+ sys.exit(main())
+
projects / DeDRM.git / commitdiff