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yurisybn3.0.py
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yurisybn3.0.py
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import os
import sys
import struct
class MyStr(str):
"Operate String as a File."
pData=0
def __init__(self, Src):
str.__init__(self)
self.pData=0
self=Src
def read(self, Bytes=-1):
if Bytes<-1:
return ''
elif Bytes==-1:
tData=self[self.pData:]
self.pData=len(self)
else:
tData=self[self.pData:self.pData+Bytes]
self.pData+=Bytes
return tData
def tell(self):
return self.pData
def seek(self, Offset, mode=0):
if mode==1: Offset+=self.pData
elif mode==2: Offset=len(self)-Offset
if Offset<0:
self.pData+=Offset
elif Offset<len(self):
self.pData=Offset
else:
self.pData=len(self)
def readline(self, nLine=1):
if nLine<1: nLine=1
if '\n' in self[self.pData:]:
tData=self[self.pData:self.find('\n',self.pData)+1]
else:
tData=self[self.pData:]
self.pData+=len(tData)
return tData
def STR(SRC):
RES=[]
while 1:
c=SRC.read(1)
if c=='\0': break
elif c=='\n': c='\\n'
elif c=='\r': c='\\r'
elif c=='\\': c='\\\\'
RES.append(c)
return ''.join(RES)
def YSER(YBN):
TXT=open(sys.argv[1]+'.txt','w')
ver, count, reserved = struct.unpack('III', YBN.read(12))
TXT.write('#YSER v%.2f\n\n'%(ver/100.))
for n in range(count):
TXT.write('%d, '%struct.unpack('I',YBN.read(4)))
TXT.write(STR(YBN)+'\n')
TXT.close()
def YSCM(YBN):
TXT=open(sys.argv[1]+'.txt','w')
ver, count, reserved = struct.unpack('III', YBN.read(12))
TXT.write('#YSCM v%.2f\n\n'%(ver/100.))
for n in range(count):
TXT.write(STR(YBN)+'\n')
for n in range(ord(YBN.read(1))):
TXT.write('\t%s, %d, %d\n'%(STR(YBN), ord(YBN.read(1)), ord(YBN.read(1))))
TXT.close()
def NULL(YBN):
print 'not processed.'
def YSTL(YBN):
TXT=open(sys.argv[1]+'.txt','w')
ver, count = struct.unpack('II', YBN.read(8))
TXT.write('#YSTL v%.2f\n\n'%(ver/100.))
for n in range(count):
if struct.unpack('I', YBN.read(4))[0]>count: break
STRLEN=struct.unpack('I', YBN.read(4))[0]
TXT.write(YBN.read(STRLEN)+'\n')
dummy=YBN.read(16)
TXT.close()
def YSLB(YBN):
TXT=open(sys.argv[1]+'.txt','w')
ver, count = struct.unpack('II', YBN.read(8))
TXT.write('#YSLB v%.2f\n\n'%(ver/100.))
List=[struct.unpack('I', YBN.read(4))[0] for n in range(256)]
for n in range(count):
TXT.write(YBN.read(ord(YBN.read(1))).ljust(36)+
", %08X, %6d, %5d, %3d, %3d\n"%struct.unpack('IIHBB',YBN.read(12)))
TXT.close()
def YSTB(YBN):
'''u32 'YSTB'
u32 ver
u32 count
u32 Code_Size=count*4
u32 Arg_Size=count*12
u32 Resource_Size
u32 T4_Size=count*4
u32 reserved==0
====================
Code:
u8 [0x1b, 0x1c]
u8 nArg(sizeof()=0xC)
u16 Reserved
Arg:u8
u8
u16
u32 ResLength
u32 ResOffset(of Resource_section)
Resource:
struct{
u8 Type
u16 ResLen
char[] ResStr
}[]
JmpList: u32[]
'''
TXT=open(sys.argv[1]+'.code','w')
ver, count, Code_Size, Arg_Size, Res_Size, OffList_Size, reserved = \
struct.unpack('IIIIIII', YBN.read(28))
TXT.write('#YSTB v%.2f\n\n'%(ver/100.))
Code=MyStr(YBN.read(Code_Size))
Args=MyStr(YBN.read(Arg_Size))
Res=MyStr(YBN.read(Res_Size))
OffList=struct.unpack('I'*count, YBN.read(OffList_Size))
Text=[]
Count=0
CodeStr=[]
for n in range(count):
OP, nArg, Reserved=struct.unpack('BBH',Code.read(4))
CodeStr.append('OP%02X'%OP)
if Reserved:
print 'Warning: Reserved value is used !'
os.system('pause')
for n in range(nArg):
Arg, ArgType, ResLen, ResOff = struct.unpack('HHII',Args.read(12))
Res.seek(ResOff)
ResStr=[]
if ResOff+ResLen>len(Res): ResLen=len(Res)-ResOff
IsText=0
while Res.tell()<ResOff+ResLen:
Type=ord(Res.read(1))
if Type>0x7f:
Res.seek(-1,1)
Count+=1
Text.append(Res.read(ResLen))
ResStr=['<%04d>'%Count]
else:
StrLen=struct.unpack('H',Res.read(2))[0]
#if StrLen>ResLen: pdb.set_trace()
Resource=Res.read(StrLen)
if not Type==0x4d:
Resource=''.join(['%02X'%ord(n) for n in Resource])
elif Resource[0]==Resource[-1]=='"':
for n in Resource:
if ord(n)>0x7f:
IsText=1
break
if IsText:
Count+=1
Text.append(Resource[1:-1])
Resource='"<%04d>"'%Count
IsText=0
ResStr.append('%X:'%Type+Resource)
CodeStr.append('\t%X:%X\t%s'%(Arg, ArgType, ', '.join(ResStr)))
TXT.write('\n'.join(CodeStr))
TXT.write('\n\n#Program\n'+', '.join(['%d'%n for n in OffList]))
if Text: open(sys.argv[1]+'.txt', 'w').write('\n'.join(Text))
TXT.close()
YSFUNC={
'YSER': YSER,
'YSCM': YSCM,
'YSTD': NULL,
'YSTL': YSTL,
'YSVR': NULL,
'YSLB': YSLB,
'YSTB': YSTB,
}
def CODE2YSTB():
CODE=open(sys.argv[1],'r')
TXT=os.path.splitext(sys.argv[1])[0]+'.txt'
if os.path.isfile(TXT): TXT=[0]+open(TXT, 'r').read().split('\n')
Src=CODE.readline()
if Src.strip().lower().split()[0]!='#ystb':
print 'Wrong code file.'
sys.exit()
ver=int(float(Src.strip().split()[1].lower().strip('v'))*100)
Src=CODE.readline()
CodeData=[]
ArgData=[]
ResData=''
OffList=[]
OP=[]
while Src:
if Src[0] in [';', '\n']:
Src=CODE.readline()
continue
elif Src[:2]=='OP':
if OP: CodeData.append(''.join([chr(n) for n in OP]))
OP=[int(Src[2:],16), 0, 0, 0]
elif Src[0]=='\t':
OP[1]+=1
Res=''
Arg, Res = [n.strip() for n in Src[1:].strip('\n').split('\t')]
Arg, ArgType = [int(n,16) for n in Arg.split(':')]
if not Res: pass
elif Res[0]=='<':
Res=TXT[int(Res[1:5])]
else:
while '<' in Res and '>' in Res:
LQuote=Res.index('<')
RQuote=Res.index('>')
Res=Res[:LQuote]+TXT[int(Res[LQuote+1:RQuote])]+Res[RQuote+1:]
ResLen=0
ResStr=[]
for Res in Res.split(','):
ResType, Str = [n.strip() for n in Res.split(':')]
if Str and Str[0] in '0123456789ABCDEF':
HIGH=Str[::2]
LOW=Str[1::2]
Str=''.join([chr((int(HIGH[n],16)<<4)|int(LOW[n],16))
for n in range(len(HIGH))])
ResStr.append(chr(int(ResType,16))+struct.pack('H', len(Str))+Str)
Res=''.join(ResStr)
if Res in ResData:
ArgData.append(struct.pack('HHII',
Arg, ArgType, len(Res), ResData.index(Res)))
else:
ArgData.append(struct.pack('HHII',
Arg, ArgType, len(Res), len(ResData)))
ResData+=Res
elif Src.strip()=='#Program':
if OP: CodeData.append(''.join([chr(n) for n in OP]))
OP=[]
OffList=''.join([struct.pack('I',int(n)) for n in CODE.readline().split(',')])
Src=CODE.readline()
Hdr='YSTB'+struct.pack('II', ver, len(CodeData))
CodeData=''.join(CodeData)
ArgData=''.join(ArgData)
ResData=''.join(ResData)
CodeData=''.join([chr(ord(CodeData[n])^key[n&3]) for n in xrange(len(CodeData))])
ArgData=''.join([chr(ord(ArgData[n])^key[n&3]) for n in xrange(len(ArgData))])
ResData=''.join([chr(ord(ResData[n])^key[n&3]) for n in xrange(len(ResData))])
OffList=''.join([chr(ord(OffList[n])^key[n&3]) for n in xrange(len(OffList))])
Hdr+=struct.pack('IIIII',
len(CodeData), len(ArgData), len(ResData), len(OffList), 0)
open(sys.argv[1]+'.ybn','wb').write(Hdr+CodeData+ArgData+ResData+OffList)
def ANAYBN():
YBN=open(sys.argv[1],'rb')
MAGIC=YBN.read(4)
if MAGIC in YSFUNC: YSFUNC[MAGIC](YBN)
else:
print 'Unknown MAGIC: %s' % MAGIC
key=[0xd3, 0x6f, 0xac, 0x96]
if len(sys.argv)<2:
print 'YU-RIS YBN v3.00 Script Analyzer/Creator 0.1\nUsage: %s [option] <*.ybn|*.code>\n\nOption:\n -key <32bit-HEX> specify key to replace the default "D36FAC96".\n E.g. -key 00000000 means do not crypt the created YBN.' % os.path.split(sys.argv[0])[1]
sys.exit()
if sys.argv[1]=='-key':
KeyHi, KeyLo = sys.argv[2][::2], sys.argv[2][1::2]
key=[(int(KeyHi[n],16)<<4)|int(KeyLo[n],16) for n in range(4)]
sys.argv[1]=sys.argv[3]
Ext=os.path.splitext(sys.argv[1])[1].lower()
if Ext=='.code':
CODE2YSTB()
elif Ext=='.ybn':
ANAYBN()
else:
sys.exit()