Python 3 fixes

This commit is contained in:
Aldo Bleeker 2021-12-28 18:34:11 +01:00 committed by noDRM
parent e0fcd99bcb
commit 5ace15e912
3 changed files with 20 additions and 8 deletions

View File

@ -207,8 +207,9 @@ def _load_python_alfcrypto():
def ctx_init(self, key):
ctx1 = 0x0CAFFE19E
for keyChar in key:
keyByte = ord(keyChar)
if isinstance(key, str):
key = key.encode('latin-1')
for keyByte in key:
ctx2 = ctx1
ctx1 = ((((ctx1 >>2) * (ctx1 >>7))&0xFFFFFFFF) ^ (keyByte * keyByte * 0x0F902007)& 0xFFFFFFFF )
self._ctx = [ctx1, ctx2]
@ -220,8 +221,9 @@ def _load_python_alfcrypto():
ctx1 = ctx[0]
ctx2 = ctx[1]
plainText = ""
for dataChar in data:
dataByte = ord(dataChar)
if isinstance(data, str):
data = data.encode('latin-1')
for dataByte in data:
m = (dataByte ^ ((ctx1 >> 3) &0xFF) ^ ((ctx2<<3) & 0xFF)) &0xFF
ctx2 = ctx1
ctx1 = (((ctx1 >> 2) * (ctx1 >> 7)) &0xFFFFFFFF) ^((m * m * 0x0F902007) &0xFFFFFFFF)

View File

@ -473,8 +473,10 @@ class DocParser(object):
if (link > 0):
linktype = self.link_type[link-1]
title = self.link_title[link-1]
if (title == b"") or (parares.rfind(title.decode('utf-8')) < 0):
title=parares[lstart:].encode('utf-8')
if isinstance(title, bytes):
title = title.decode('utf-8')
if (title == "") or (parares.rfind(title) < 0):
title=parares[lstart:]
if linktype == 'external' :
linkhref = self.link_href[link-1]
linkhtml = '<a href="%s">' % linkhref
@ -485,9 +487,9 @@ class DocParser(object):
else :
# just link to the current page
linkhtml = '<a href="#' + self.id + '">'
linkhtml += title.decode('utf-8')
linkhtml += title
linkhtml += '</a>'
pos = parares.rfind(title.decode('utf-8'))
pos = parares.rfind(title)
if pos >= 0:
parares = parares[0:pos] + linkhtml + parares[pos+len(title):]
else :

View File

@ -175,6 +175,8 @@ def decryptRecord(data,PID):
# Try to decrypt a dkey record (contains the bookPID)
def decryptDkeyRecord(data,PID):
record = decryptRecord(data,PID)
if isinstance(record, str):
record = record.encode('latin-1')
fields = unpack('3sB8sB8s3s',record)
if fields[0] != b'PID' or fields[5] != b'pid' :
raise DrmException("Didn't find PID magic numbers in record")
@ -318,6 +320,8 @@ class TopazBook:
raise DrmException("Error: Attempt to decrypt without bookKey")
if compressed:
if isinstance(record, str):
record = bytes(record, 'latin-1')
record = zlib.decompress(record)
return record
@ -345,6 +349,8 @@ class TopazBook:
for pid in pidlst:
# use 8 digit pids here
pid = pid[0:8]
if isinstance(pid, str):
pid = pid.encode('latin-1')
print("Trying: {0}".format(pid))
bookKeys = []
data = keydata
@ -412,6 +418,8 @@ class TopazBook:
outputFile = os.path.join(destdir,fname)
print(".", end=' ')
record = self.getBookPayloadRecord(name,index)
if isinstance(record, str):
record=bytes(record, 'latin-1')
if record != b'':
open(outputFile, 'wb').write(record)
print(" ")