kbinxml/bin_xml.py
2017-06-13 19:57:04 +10:00

326 lines
9.6 KiB
Python

from xml.dom import minidom
from struct import calcsize
import string
from bitarray import bitarray
from bytebuffer import ByteBuffer
from format_ids import xml_formats, xml_types
import IPython
DEBUG_OFFSETS = False
DEBUG = False
SIGNATURE = 0xA042
encodings = [
None,
'ASCII',
'ISO-8859-1',
'EUC-JP',
'SHIFT_JIS',
'UTF-8'
]
def debug_print(string):
if DEBUG:
print string
def pack_bits(string, nodeBuf, bits = 6):
chars = str_to_sixbit(string)
bits = bitarray(endian='big')
for c in chars:
bits.frombytes(c)
del bits[-8:-6]
for c in bits.tobytes():
nodeBuf.append_u8(ord(c))
def unpack_bits(bitArray, byteBuf, length, bits = 6):
result = []
offset = byteBuf.offset * 8
for i in range(length):
result.append(ord(bitArray[offset:offset+bits].tobytes()) >> (8 - bits))
offset += bits
# padding
byteBuf.offset += (length * bits + 7) // 8
return sixbit_to_str(result)
# 0-9 for numbers, 10 to 36 for capitals, 37 for underscore, 38-63 for lowercase
def sixbit_to_str(decompressed):
string = ''
for d in decompressed:
if d <= 10:
d += ord('0')
elif d < 37:
d += 54
elif d == 37:
d += 58
else:
d += 59
string += chr(d)
return string
def str_to_sixbit(string):
compress = []
for c in string:
if c >= '0' and c <= '9':
compress.append(ord(c) - ord('0'))
elif c >= 'A' and c <= 'Z':
compress.append(ord(c) - 54)
elif c == '_':
compress.append(ord(c) - 58)
elif c >= 'a' and c <= 'z':
compress.append(ord(c) - 59)
else:
raise ValueError('Node name can only contain alphanumeric + underscore')
return ''.join(map(chr, compress))
def data_grab_auto(dataBuf):
size = dataBuf.get_s32()
ret = [dataBuf.get_u8() for x in range(size)]
# padding
dataBuf.offset += 3
# round to dword
dataBuf.offset &= ~0b11
return ret
def data_append_auto(dataBuf, data):
dataBuf.append_s32(len(data))
dataBuf.append(data, 's', len(data))
# padding
while len(dataBuf) % 4:
dataBuf.append_u8(0)
def data_append_string(dataBuf, string):
string = string.encode('shift_jisx0213')
data_append_auto(dataBuf, string)
def data_grab_string(dataBuf):
data = data_grab_auto(dataBuf)
res = ''
for b in data:
if b == 0:
break
res += chr(b)
return res.decode('shift_jisx0213')
# has its own separate state and other assorted garbage
def data_grab_aligned(dataBuf, dataByteBuf, dataWordBuf, type, count):
if dataByteBuf.offset % 4 == 0:
dataByteBuf.offset = dataBuf.offset
if dataWordBuf.offset % 4 == 0:
dataWordBuf.offset = dataBuf.offset
# multiply by count since 2u2 reads from the 16 bit buffer, for example
size = calcsize(type) * count
if size == 1:
ret = dataByteBuf.get(type, count)
elif size == 2:
ret = dataWordBuf.get(type, count)
else:
ret = dataBuf.get(type, count)
trailing = max(dataByteBuf.offset, dataWordBuf.offset)
if dataBuf.offset < trailing:
dataBuf.offset = trailing + 3
dataBuf.offset &= ~0b11
return ret
def is_binary_xml(input):
nodeBuf = ByteBuffer(input)
return nodeBuf.get_u16() == SIGNATURE
def _xml_node_to_binary(node, nodeBuf, dataBuf):
nodeType = node.getAttribute('__type')
if not nodeType:
nodeType = 'void'
nodeId = xml_types[nodeType]
isArray = 0
count = node.getAttribute('__count')
if count:
count = int(count)
isArray = 64 # bit position for array flag
nodeBuf.append_u8(nodeId | isArray)
name = node.nodeName
nodeBuf.append_u8(len(name))
pack_bits(name, nodeBuf)
import operator
sorted_x = sorted(node.attributes.items(), key=operator.itemgetter(0))
for key, value in sorted_x:#node.attributes.items():
if key in ['__type', '__size', '__count']:
pass
else:
data_append_string(dataBuf, value)
nodeBuf.append_u8(xml_types['attr'])
nodeBuf.append_u8(len(key))
pack_bits(key, nodeBuf)
if nodeType != 'void':
nodeId = xml_types[nodeType]
fmt = xml_formats[nodeId]
data = map(fmt['pType'], node.firstChild.nodeValue.split(fmt.get('delimiter', ' ')))
if fmt['count'] == -1 or not isArray:
data = data[0]
if isArray or fmt['count'] == -1:
dataBuf.append_u32(len(data))
if isArray:
for d in data:
dataBuf.append(d, fmt['type'])
else:
dataBuf.append(data, fmt['type'])
else:
data_append_aligned(dataBuf, dataByteBuf, dataWordBuf, fmt['type'], fmt['count'])
for child in node.childNodes:
if child.nodeType != child.TEXT_NODE:
_xml_node_to_binary(child, nodeBuf, dataBuf)
nodeBuf.append_u8(xml_types['nodeEnd'] | 64)
def xml_text_to_binary(input):
return xml_to_binary(minidom.parseString(input))
def xml_to_binary(input):
header = ByteBuffer()
header.append_u16(SIGNATURE)
header.append_u8(4 << 5) # SHIFT-JIS TODO make encoding variable
header.append_u8(0x7F) # TODO what does this do as 7f or ff
nodeBuf = ByteBuffer()
dataBuf = ByteBuffer()
for child in input.childNodes:
_xml_node_to_binary(child, nodeBuf, dataBuf)
nodeBuf.append_u8(xml_types['endSection'] | 64)
while len(nodeBuf) % 4 != 0:
nodeBuf.append_u8(0)
header.append_u32(len(nodeBuf))
nodeBuf.append_u32(len(dataBuf))
return header.data + nodeBuf.data + dataBuf.data
def binary_to_xml_text(input):
return binary_to_xml(input).toprettyxml(indent=" ", encoding='UTF-8')
def binary_to_xml(input):
doc = minidom.Document()
node = doc
nodeBuf = ByteBuffer(input)
assert nodeBuf.get_u16() == SIGNATURE
encoding = encodings[(nodeBuf.get_u8() & 0xE0) >> 5]
unknown = nodeBuf.get_u8()
# creating bitarrays is slow, cache for speed
nodeBits = bitarray(endian='big')
nodeBits.frombytes(input)
nodeEnd = nodeBuf.get_u32() + 8
nodeBuf.end = nodeEnd
dataBuf = ByteBuffer(input, nodeEnd)
dataSize = dataBuf.get_u32()
# WHY MUST YOU DO THIS TO ME
dataByteBuf = ByteBuffer(input, nodeEnd)
dataWordBuf = ByteBuffer(input, nodeEnd)
nodesLeft = True
while nodesLeft and nodeBuf.hasData():
while nodeBuf.peek_u8() == 0:
debug_print("Skipping 0 node ID")
nodeBuf.get_u8()
nodeType = nodeBuf.get_u8()
isArray = nodeType & 64
nodeType &= ~64
nodeFormat = xml_formats.get(nodeType, {'name':'Unknown'})
debug_print('Node type is {} ({})'.format(nodeFormat['name'], nodeType))
# node name
name = ''
if nodeType != xml_types['nodeEnd'] and nodeType != xml_types['endSection']:
strLen = nodeBuf.get_u8()
name = unpack_bits(nodeBits, nodeBuf, strLen)
debug_print(name)
skip = True
if nodeType == xml_types['attr']:
value = data_grab_string(dataBuf)
node.setAttribute(name, value)
elif nodeType == xml_types['nodeEnd']:
if node.parentNode:
node = node.parentNode
elif nodeType == xml_types['endSection']:
nodesLeft = False
elif nodeType not in xml_formats:
raise NotImplementedError('Implement node {}'.format(nodeType))
else: # inner value to process
skip = False
if skip:
continue
child = doc.createElement(name)
node.appendChild(child)
node = child
if nodeType == xml_types['nodeStart']:
continue
node.setAttribute('__type', nodeFormat['name'])
if isArray:
arrayCount = dataBuf.get_u32()
node.setAttribute('__count', str(arrayCount))
else:
arrayCount = 1
varCount = nodeFormat['count']
if varCount == -1:
varCount = dataBuf.get_u32()
totalCount = arrayCount * varCount
delim = nodeFormat.get('delimiter', ' ')
if isArray or nodeFormat['count'] == -1:
try:
data = dataBuf.get(nodeFormat['type'], totalCount)
except:
print doc.toprettyxml(indent=" ", encoding='UTF-8')
IPython.embed()
dataBuf.offset += 3 # padding
dataBuf.offset &= ~0b11 # align to dword
else:
data = data_grab_aligned(dataBuf, dataByteBuf, dataWordBuf, nodeFormat['type'], totalCount)
string = delim.join(map(str, data))
if nodeType == xml_types['binary']:
node.setAttribute('__size', str(totalCount))
string = ''.join(('{0:02x}'.format(ord(x)) for x in string))
if nodeType == xml_types['string']:
string = string[:-1].decode('shift_jisx0213')
node.appendChild(doc.createTextNode(string))
#print doc.toprettyxml(indent=" ", encoding='UTF-8')
return doc
if __name__ == '__main__':
#input = open('./dump/_core_model=KFC_J_A_A_2016121200_module=package_method=list_out.raw','rb').read()
#input = open('./dump/KFCmodelKFCJAA2016121200modulegame3methodcommon.raw','rb').read()
input = open('test.raw', 'rb').read()
xml = binary_to_xml(input)
binary = xml_to_binary(xml)
with open('out.raw', 'wb') as f:
f.write(binary)
#print [ord(x) for x in input]
#print [ord(x) for x in binary]
#print binary_to_xml_text(input)
print binary_to_xml_text(binary)