[TUTORIAL] Sending Patches To The Client Through The WoW App

[stoneharry]

With Schlumpf's guidance I was able to successfully implement a way to send custom patches to the client through WoW rather than a custom launcher.

The implications for this are quite clear. It allows one to:

• Require the latest patch to login.
• Send incremental patches.
• Send any data.

I wrote up a guide to do this which Schlumpf has heavily edited to create a, hopefully, useful publication.

The link to this can be found here: https://www.dropbox.com/s/fovh9mtrj9tgqd4/Implementing%20in-client%20patching%20for%20World%20of%20Warcraft.pdf?dl=0

~Harry & Schlumpf

Edit: 21/06/2014:

You will have to edit the binary to allow unsigned patches: <!-- l -->viewtopic.php?f=59&t=1829<!-- l -->

This is my code changes for a more recent TrinityCore version in order to get patching to work: <!-- m -->https://dl.dropboxusercontent.com/u/110 ... nity.patch<!-- m -->

[schlumpf]

You may want to add links to code excerpts or even the whole zip for ease of copying.

[Eluo]

Awsome guys!

You sure you just want to keep it at drop boxs?
You could also upload it to the forum if you want to.
Very nice.
Thanks to both of you!
PS:I corrected your links btw.

[stoneharry]

Thanks, yeah when I posted this before I was ready by mistake. Now every time I try to edit the post it disapproves the post. FML.

http://dl.dropbox.com/u/1102355/PatchThroughClient.zip

That is the full archive.

Also attached to this post.

[glararan]

Did you test it only on ArcEmu or Trinity?

[stoneharry]

Did you test it only on ArcEmu or Trinity?

I tested it on ArcEmu, and Schlumpf tested it on TrinityCore.

[Mjollna]

I add the change for Windows 335a binary.
Huge thanks to Schlumpf for all the help and explanations.

Code: [Select]

55 push ebp
8B EC mov ebp, esp

B9 05 00 00 00 mov ecx, 5
8B 45 0C mov eax, [ebp+authresult]
89 08 mov [eax], ecx

B8 01 00 00 00 mov eax, 1

5D pop ebp
C2 18 00 retn 18h

[XxXGenesisXxX]

This is epic work guys. It's been needed for quite some time. Personally really don't like launchers at all. Thanks for sharing.

[schlumpf]

This is epic work guys. It's been needed for quite some time. Personally really don't like launchers at all. Thanks for sharing.

The sad part is that this technique is known and working since years but emulator people never correctly implemented it.

[Jameyboor]

getting a patch error on the trinity core diff patch .

line 769 : corrupt patch

[stoneharry]

getting a patch error on the trinity core diff patch .

line 769 : corrupt patch

You'll need to apply it manually.

[davidfaca]

I've compiled trinitycore with the patch, modified the wow.exe to allow the MPQ, made the patch and authserver loads it. But when I try to login I just get an unable to validate game version message and it does not go further.

I'm using 3.3.5a esES.

thanks.

[akriso]

it really works well? :shock:

[Namamazu]

For some reason that  i cant fathom, 'usleep(1000);' in the diff script for Trinity is unrecognized.

Error 3 error C3861: 'usleep': identifier not found D:Trinity335srcserverauthserverServerAuthSocket.cpp 458 1 authserver

any ideas?

[schlumpf]

use Sleep(1);