eressea

Thanks, now it works fine. As for utf-16le problem, this should be sufficient (I'm not PHP programmer, I've copied it from https://stackoverflow.com/questions/27551099/how-to-read-from-files-in-utf-16le-encoding-in-php):

...
$tokenizer = new Tokenizer();
$parser = new Parser($data);
$generator = new NASCGenerator();

class readutf16le_filter extends php_user_filter {
    function filter($in, $out, &$consumed, $closing) {
        while ($bucket = stream_bucket_make_writeable($in)) {
            $bucket->data = iconv('UTF-16LE', 'UTF-8',
                strlen($bucket->data) && substr($bucket->data, 0, 2) == "\xff\xfe"
                    ? substr($bucket->data, 2)
                    : $bucket->data);
            $consumed += $bucket->datalen;
            stream_bucket_append($out, $bucket);
        }
        return PSFS_PASS_ON;
    }
}

stream_filter_register('readutf16le', 'readutf16le_filter');

$file = fopen('ai.obj', 'r');
stream_filter_append($file, 'readutf16le');
$line = 0;

// write BOM
file_put_contents('ai.nasc', pack('S', 0xFEFF));
...

and just remove

    $string = preg_replace('/[^\s\x20-\x7E]/', '', $string); // remove non-ASCII characters

Hi, nice work,  but when I try decompile my ai.obj, I get  this:

C:\ep\git\nasc-decompiler>run.bat
Decompile ai_adiantum_skilluse
PHP Notice:  Undefined offset: 1 in C:\ep\git\nasc-decompiler\core\tokenizer.php on line 26
PHP Notice:  Undefined offset: 1 in C:\ep\git\nasc-decompiler\core\tokenizer.php on line 26
PHP Notice:  Undefined offset: 1 in C:\ep\git\nasc-decompiler\core\tokenizer.php on line 26
PHP Notice:  Undefined offset: 1 in C:\ep\git\nasc-decompiler\core\tokenizer.php on line 26
PHP Notice:  Undefined offset: 1 in C:\ep\git\nasc-decompiler\core\tokenizer.php on line 26
PHP Notice:  Undefined offset: 1 in C:\ep\git\nasc-decompiler\core\tokenizer.php on line 26
PHP Notice:  Undefined offset: 1 in C:\ep\git\nasc-decompiler\core\tokenizer.php on line 26
PHP Notice:  Undefined offset: 1 in C:\ep\git\nasc-decompiler\core\tokenizer.php on line 26
PHP Notice:  Undefined offset: 1 in C:\ep\git\nasc-decompiler\core\tokenizer.php on line 26
PHP Notice:  Undefined offset: 1 in C:\ep\git\nasc-decompiler\core\tokenizer.php on line 26
Decompile ai_agit02_dietrichPHP Notice:  Undefined index: S1 in C:\ep\git\nasc-decompiler\core\parser.php on line 442
PHP Fatal error:  Uncaught TypeError: Argument 1 passed to StringExpression::__construct() must be of the type string, null given, called in C:\ep\git\nasc-decompiler\core\parser.php on line 442 and defined in C:\ep\git\nasc-decompiler\core\ast.php:195
Stack trace:
#0 C:\ep\git\nasc-decompiler\core\parser.php(442): StringExpression->__construct(NULL)
#1 C:\ep\git\nasc-decompiler\core\parser.php(116): Parser->parsePushString(Object(Token))
#2 C:\ep\git\nasc-decompiler\core\main.php(73): Parser->parseClass(Object(Token))
#3 {main}
  thrown in C:\ep\git\nasc-decompiler\core\ast.php on line 195

Press any key to continue . . .

Am I doing anything wrong? The AI part where it's failing is here http://download.l2shrine.com/ai.obj

7 hours ago, etherian said:

uhmm  i must dwnload GD client and try

It's just a compiler with definitions for l2npc.exe from GD and H5 - for the few people who have those binaries (I was only asked if I can do it and got definitions that were needed)

1 hour ago, Jamba said:

Eressea is master, code c++ beautiful , I'll learn seeing your code . Thank you

Thanks :) But this code isn't so beautiful, it's just a bunch of definitions

I'm no good at C# :/

Added H5 version. I don't have whole specs so there may be bugs, please report them.

Compiled DLL: https://bitbucket.org/l2shrine/extender-public/src/compiler-h5/server/MyExt64.dll

Sources: https://bitbucket.org/l2shrine/extender-public/branch/compiler-h5

15 minutes ago, anivix said:

yes it works with IL i tested it

Thanks :)

As title suggests, I've tried to adapt MyExt64 compiler for Glory Days AI (classes, variable offsets, functions) but it's just an experiment. If there's anyone who can test how it really works, I'd be glad :) It's just a first draft and proof-of-concept, if there's any bug, I'll try to fix it. Stay tuned ;)

Compiled DLL: https://bitbucket.org/l2shrine/extender-public/src/compiler-gd/server/MyExt64.dll

Sources: https://bitbucket.org/l2shrine/extender-public/branch/compiler-gd

EDIT: Fixed few bugs (missing handlers and wrong 'myself' type in NPC maker event), now it compiles default NPC and default maker

8 hours ago, Yoshidajr said:

Hi, compatible with interlude?

Not quite sure, I've never ran IL server :/ Try and let me know :)

8 hours ago, DimensionalGames said:

one last question :D is it possible to write the dll in C#?

Short answer: No.

Long answer: There's some chance it could be done (somehow) but it would be very very hard (and maybe you would still have to write some parts in assembly).

6 hours ago, DimensionalGames said:

i know about the first, but how do i edit the l2.exe? btw thx for answering. This way i can add more too? also are there any dependencies for the dll (other dlls?)

There are tools like CFF Explorer etc, you just open l2.exe there and add an import to import table.

If you write your DLL, it's up to you what it will depend on. If it depends on other DLLs, it will automatically load them so you still need just to add your DLL to import table of l2.exe and system will do the rest for you.

7 hours ago, sepultribe said:

Bumping this topic since I haven't heard anything from the big gurus of the forum. Please share some personal stories of how you started reversing, what knowledge you believe is good as a foundation for newbies, any good books, online courses or whatever you recommend. Anything to give me and anyone else looking for a way to get his feet wet some courage and hope. Or if there is no hope at all for someone who didn't go to Computer Science University, tell me the reasons for that too, I want to hear it.

 

Till now I've been told you either know how to do it or you don't. Or other really vague things that haven't helped me at all to be honest. Advise people, advise, I don't ask you to hold my hand or give me skype 1:1 lessons for free. We need to get this place alive again, like 8-10 years ago, and for this more people need to learn to code in l2off. I am willing to share and document all my steps to help others like me as I go deeper but without anyone's help I don't know how long it's going to take me, or if I even make it to the end without giving up, struggling with depression at the same time. Please consider contributing and thanks for reading this post.

 

 

 

I'll throw some tags here so people get to see this hopefully

@Anarchy@mcbigmac@eressea@Phantasmo@tk422@CriticalError@Sighed

Well, my start wasn't so hard because I actually work as C++ developer and I have some experience with few different assemblers (notably x86 asm from MS-DOS era and Intel 8051 asm, both around 18-25 years ago). Around two years ago, I've decided I want to run l2off server but there was only AdvExt stuff (which is great and I wouldn't even care it costs some money, but it would also mean I wouldn't be able to customize it for my needs) so I've started to google for some extender sources and found OSIE project. It's really small extender that aimed to downgrade GF to Interlude and doesn't fix half of bugs present in GF binaries, but it was a good start. So I've installed IDA Pro and started to try to find how all that works. When I was sure I know how everything in OSIE works, I've started to add some new stuff there (offline trade, global shout). When that worked I started to write brand new extender...

6 hours ago, DimensionalGames said:

yeah but how is it possible to do this?? ive never worked with client :/

Get Visual Studio (with support for Windows XP if you want to support players with this obsolete system), create new C++ Win32 project -> choose DLL. Implement those bits I've posted and build DLL. Then edit l2.exe to load this DLL.

Nice work :) And oh, my stuff included, lovely <3

EDIT: Btw, compiler is there twice :)

On 6/15/2018 at 9:55 PM, Yoshidajr said:

does it work in interlude? or you would have an interlude to make it available, thank you.

There are different decompilers for C4-based AIs - unfortunately I don't know anything about them. On the other side, C4 stuff is wide spread on the Internet so I think you can find some working decompiler (or maybe decompiled AI).

Then it's already in your server - just edit config and make sure SpiritShotExtension is enabled in L2Server section:

[L2Server]
SpiritShotExtension = 1

3 minutes ago, melron said:

and again, java.math.BigInteger class instance is not instance of java.lang.long. I dont know if an updated version of mysql accept this but the error itself saying only class cast exception (normally throwing this sqlexception)

https://dev.mysql.com/doc/relnotes/connector-j/5.1/en/news-5-1-20.html (so maybe it's too new connector, not MySQL)

3 minutes ago, melron said:

maybe i cant understand properly the image but, where did you guys see that the problem is on mysql? I can clearly see class cast exception from big integer to long which is normally lol.

 

About your errors in mysql tables check the rows if they are really big (lol?)

Because it's thrown when MySQL connection is created - and because first few Google results seem so - just search this:

"java.math.BigInteger cannot be cast to java.lang.Long" mysql

Too new MySQL version/too old JDBC connector

Have a look here https://github.com/smmoosavi/android-Farsi-Tools/blob/master/src/farsiTools/ArabicLigaturizer.java maybe it's what you need

33 minutes ago, Nightw0lf said:

I am not C expert to remove completely the serial and the problem is that the OS dont accept later than visual studio 2008 this is why I ask for serial for HWID or any help since I cant do it

You should get VirtualBox, some 64bit Windows 2008 Server and Visual Studio 2005 Pro to be able to do changes/fix stuff etc...

If you're in a hurry, zip the sources together and send me a link, I'll try to remove the licensing and compile it for you...

Hi, you need Visual Studio 2005 with 64-bit support (preferably SP1 but I think it's not necessary). Also, if you have a source code, just disable the licensing completely - you don't need it.

I think (but I'm not 100% sure) it's SlotHairEx (or hair2 in itemdata.txt). The first one is SlotHair (simply hair in itemdata) and items occupying both these slots are probably SlotHairAll (hairall in itemdata).

What files are you using?

On 5/19/2018 at 9:25 PM, verbrannt said:

Thank you! Can you please explain how did you get the CNPC.h & CMaker.h files with signatures of NASC methods and their addresses (in comments)?

UPD: I think I found some signatures in the OSIE project, but only methods, not variables.

Yes, something is from OSIE, Vanganth etc and something is reverse engineered in IDA (NPCd stuff mostly reverse engineered)... Get IDA Pro and start exploring stuff :) It's fun if you have time for it

11 hours ago, bit said:

eressea trying to replicate your exact setup. im banging my head here. sure you did not forget anything about proxy setup? you set DNAT to IP of l2server, however here on my end proxy does not know where to route such packet because l2server is on different subnet than openvpn proxies. any ideas?

Hi, the machine "Linux Router" must be in all networks and route packets between them