[help] client data structure

[colonelx]

hi
i want to create my own client data packer/unpacker
but i really need some help to understand it's structure
before start working
if any one could help plz

[Aurorauser]

[gr4ph0s]

Maybe something on the first post can help you.... (Is not an ask I affirm it...)

[XavierDeFawks]

I will post the structure later.

Rappelz uses the exclusive or method for data encryption in the data files with this key phrase.

 Spoiler

77 E8 5E EC B7 4E C1 87 4F E6 F5 3C 1F B3 15 43
6A 49 30 A6 BF 53 A8 35 5B E5 9E 0E 41 EC 22 B8
D4 80 A4 8C CE 65 13 1D 4B 08 5A 6A BB 6F AD 25
B8 DD CC 77 30 74 AC 8C 5A 4A 9A 9B 36 BC 53 0A
3C F8 96 0B 5D AA 28 A9 B2 82 13 6E F1 C1 93 A9
9E 5F 20 CF D4 CC 5B 2E 16 F5 C9 4C B2 1C 57 EE
14 ED F9 72 97 22 1B 4A A4 2E B8 96 EF 4B 3F 8E
AB 60 5D 7F 2C B8 AD 43 AD 76 8F 5F 92 E6 4E A7
D4 47 19 6B 69 34 B5 0E 62 6D A4 52 B9 E3 E0 64
43 3D E3 70 F5 90 B3 A2 06 42 02 98 29 50 3F FD
97 58 68 01 8C 1E 0F EF 8B B3 41 44 96 21 A8 DA
5E 8B 4A 53 1B FD F5 21 3F F7 BA 68 47 F9 65 DF
52 CE E0 DE EC EF CD 77 A2 0E BC 38 2F 64 12 8D
F0 5C E0 0B 59 D6 2D 99 CD E7 01 15 E0 67 F4 32
35 D4 11 21 C3 DE 98 65 ED 54 9D 1C B9 B0 AA A9
0C 8A B4 66 60 E1 FF 2E C8 00 43 A9 67 37 DB 9C
77 E8 5E EC B7 4E C1 87 4F E6 F5 3C 1F B3 15 43
6A 49 30 A6 BF 53 A8 35 5B E5 9E 0E 41 EC 22 B8
D4 80 A4 8C CE 65 13 1D 4B 08 5A 6A BB 6F AD 25
B8 DD CC 77 30 74 AC 8C 5A 4A 9A 9B 36 BC 53 0A
3C F8 96 0B 5D AA 28 A9 B2 82 13 6E F1 C1 93 A9
9E 5F 20 CF D4 CC 5B 2E 16 F5 C9 4C B2 1C 57 EE
14 ED F9 72 97 22 1B 4A A4 2E B8 96 EF 4B 3F 8E
AB 60 5D 7F 2C B8 AD 43 AD 76 8F 5F 92 E6 4E A7
D4 47 19 6B 69 34 B5 0E 62 6D A4 52 B9 E3 E0 64
43 3D E3 70 F5 90 B3 A2 06 42 02 98 29 50 3F FD
97 58 68 01 8C 1E 0F EF 8B B3 41 44 96 21 A8 DA
5E 8B 4A 53 1B FD F5 21 3F F7 BA 68 47 F9 65 DF
52 CE E0 DE EC EF CD 77 A2 0E BC 38 2F 64 12 8D
F0 5C E0 0B 59 D6 2D 99 CD E7 01 15 E0 67 F4 32
35 D4 11 21 C3 DE 98 65 ED 54 9D 1C B9 B0 AA A9
0C 8A B4 66 60 E1 FF 2E C8 00 43 A9 67 37 DB 9C

Data.000 is simply a list of file info with this structure
you must apply the xor after reading each piece of data
byte size;
byte filename[size]; < with the same hash system used in the resource folder
byte data[8]
data[1 - 4] = offset of file within data file
data[5 - 8] = size of file
and you get the data file that the file is it by apply a calculation to hash of the name with all characters lowered
with that method you will get the data id - 1
and then data 001 - 008 is just the file data

these file extensions are excluded from the xor

 Spoiler

mp3
ogg
raw
dds
tga
naf
nx3
cob
nfm

[Aurorauser]

Hi exiled ccreator programing source code language ?

[glandu2]

For C source code of the data file number, see here
For each lowercase letter of the hash:
checksum = 31*checksum + ascii code of the letter

IIRC xXExiledXx also released an open source tool in C# to read data.00x, but didn't find it in

[colonelx]

thanks xXExiledXx and glandu2

xXExiledXx , if i want to modify data files what should i do so
i can modify data.00* without destroy it's structure

modify like delete file or insert new file or replace exist file

[XavierDeFawks]

The fastest way I have found so far although I do not enjoy it, is to simply leave the file data and modify the entry from Data.000. And to insert a new file simple append the files data to the end of the Data.00* file and insert a new entry into Data.000.

[colonelx]

Ok thanks .. finally i did it