--- /dev/null
+# 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.
+
+import struct, binascii, zlib, os, sha, sys, os.path
+
+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]
+ self.num_sections, = struct.unpack('>H', self.contents[76:78])
+ 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
+ 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
+
+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])
+
+class EreaderProcessor:
+ def __init__(self, section_reader, username, creditcard):
+ self.section_reader = section_reader
+ data = section_reader(0)
+ 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]))
+ 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)')
+ input = des.decrypt(data[-cookie_size:])
+ 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)
+ 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]
+ 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')
+ 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]
+ 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 getText(self):
+ 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)))
+ 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
+
+ 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>'),
+ }
+ 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"> </a>' % 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)
+
+ pml = PmlConverter(er.getText())
+ file(os.path.join(outdir, 'book.html'),'wb').write(pml.process())
+
+print "eReader2Html v0.03. 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
\ No newline at end of file
projects / DeDRM.git / commitdiff