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libMT_Framework.py
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libMT_Framework.py
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# -*- coding: utf-8 -*-
import os,codecs,zlib,trace
import struct
import libBlowFish
global senario_key
def getClassDict():
ClassDict={}
ClassDict[0x242bb29a]=('gmd text format','.gmd')
ClassDict[0x22FA09]=('hpe format','.hpe')
ClassDict[0x26E7FF]=('ccl format','.ccl')
ClassDict[0x86B80F]=('plexp format','.plexp')
ClassDict[0xFDA99B]=('ntr format','.ntr')
ClassDict[0x2358E1A]=('spkg format','.spkg')
ClassDict[0x2373BA7]=('spn format','.spn')
ClassDict[0x2833703]=('efs format','.efs')
ClassDict[0x4B4BE62]=('tmd format','.tmd')
ClassDict[0x22948394]=('gui format','.gui')
ClassDict[0x241F5DEB]=('tex format','.tex')
ClassDict[0x10C460E6]=('msg format','.msg')
return ClassDict
def get_resources_key():
lr='imaguy_uyrag_igurustim_'
r9='enokok_ikorodo_odohuran'
r3=0
senario_key=''
for i in range(0,23,1):
j=((ord(r9[i:i+1]) ^ ord(lr[22-i:23-i]))|r3)&0xff
senario_key+=chr(j)
r3=r3+0x40
return senario_key
def dir_fn(adr):
dirlst=[]
for root,dirs,files in os.walk(adr):
for name in files:
adrlist=os.path.join(root, name)
dirlst.append(adrlist)
return dirlst
def getsize(fn):
fsize=os.path.getsize(fn)
return fsize
def unpack_arc(fn,key):
ClassDict=getClassDict()
fp=open(fn,'rb')
magic = '\x41\x52\x43\x43'
if fp.read(4) != magic:
fp.close()
return None
ver,nums = struct.unpack('<HH',fp.read(4))
flist = []
for i in range(nums):
index_block = fp.read(0x50)
index_block = libBlowFish.decrypt_data(index_block,key)
fname = index_block[:64].rstrip(b'\x00').decode('latin-1')
ftype = struct.unpack('<I',index_block[0x40:0x44])[0]
zsize = struct.unpack('<I',index_block[0x44:0x48])[0]
sizetmp = struct.unpack('<I',index_block[0x48:0x4c])[0]
#print('sizetmp:%08x'%sizetmp)
size = sizetmp - (sizetmp>>24<<24)
#print('size:%08x'%size)
offset = struct.unpack('<I',index_block[0x4c:0x50])[0]
comFlag = True
if size == zsize:
comFlag = False
flist.append((fname,ftype,zsize,sizetmp,offset,comFlag))
#print('%s,%08x,%08x,%08x,%08x'%(fname,ftype,zsize,sizetmp,offset))
for (fname,ftype,zsize,size,offset,comFlag) in flist:
destdir = '%s_unpacked\\%s'%(fn,'\\'.join(fname.split('\\')[:-1]))
if ftype in ClassDict:
extname = ClassDict[ftype][1]
else:
extname = '.bin'
print('decompressing %s at:%08x with %08x'%(fname,offset,zsize))
if not os.path.exists(destdir):
os.makedirs(destdir)
dest=open('%s\\%s%s'%(destdir,fname.split('\\')[-1],extname),'wb')
fp.seek(offset)
bstr=fp.read(zsize)
bstr=libBlowFish.decrypt_data(bstr,key)
print('zlib header check:%02x'%struct.unpack('>H',bstr[:2])[0])
if comFlag:
bstr=zlib.decompress(bstr)
dest.write(bstr)
dest.close()
def repack_arc(fn,key):
ClassDict=getClassDict()
print('repacking %s '%fn)
base_addr = 0x8000
offset = 0x8000
if not os.path.exists('%s_unpacked\\'%fn):
return None
fp = open(fn,'rb+')
magic = '\x41\x52\x43\x43'
if fp.read(4) != magic:
fp.close()
return None
ver,nums = struct.unpack('<HH',fp.read(4))
flist = []
for i in range(nums):
tmp_ofs = fp.tell()
index_block = fp.read(0x50)
index_block = libBlowFish.decrypt_data(index_block,key)
fname = index_block[:64].rstrip(b'\x00').decode('latin-1')
ftype = struct.unpack('<I',index_block[0x40:0x44])[0]
zsize = struct.unpack('<I',index_block[0x44:0x48])[0]
sizetmp = struct.unpack('<I',index_block[0x48:0x4c])[0]
size = sizetmp - (sizetmp>>24<<24)
offset = struct.unpack('<I',index_block[0x4c:0x50])[0]
comFlag = True
flist.append((tmp_ofs,fname,ftype,comFlag))
#print(fname,ftype,zsize,size,offset,comFlag)
boffset = 0x8000
fp.truncate(boffset)
for (tmp_ofs,fname,ftype,comFlag) in flist:
destdir = '%s_unpacked\\%s'%(fn,'\\'.join(fname.split('\\')[:-1]))
if ftype in ClassDict:
extname = ClassDict[ftype][1]
else:
extname = '.bin'
dest_name = '%s\\%s%s'%(destdir,fname.split('\\')[-1],extname)
dest = open(dest_name,'rb')
zdata = dest.read()
zlibdata=zlib.compress(zdata)
sdata = libBlowFish.encrypt_data(zlibdata,key)
print('eompressed size:%08x'%len(zlibdata))
dest.close()
index_block = ''
index_block += fname.encode('latin-1')
print(dest_name)
index_block += ('\x00'*(0x40 - len(fname.encode('latin-1'))%0x40))
index_block += struct.pack('<I',ftype)
index_block += struct.pack('<I',len(sdata))
index_block += struct.pack('<I',(len(zdata)|0x40000000))
index_block += struct.pack('<I',boffset)
#print('packing:zsize:%08x'%len(zdata),'size:%08x'%(len(file_data)<<3|0x0b010))
#print('%s,%08x,%08x,%08x,%08x'%(fname,ftype,len(zdata),(len(file_data)|0x40000000),offset))
block = libBlowFish.encrypt_data(index_block,key)
#print(dblock,hex(tmp_ofs))
fp.seek(tmp_ofs)
fp.write(block)
fp.seek(boffset)
fp.write(sdata)
print('encrypted size:%08x'%len(sdata))
boffset += len(sdata)
print('end offset:%08x'%boffset)
fp.close()