Client Version Control (P2P) 🔒 Kick outdated clients instantly!

[ergod 208]

Hello community,

today I’m releasing a Client Version Control System.
This feature allows you to enforce client version checks across all channels, fully synced through P2P and stored in the database.
It’s simple, lightweight, and helps keep outdated clients from connecting.

Features:

Quote

• Database-based versioning
• Current client version is stored in common.server_config.
• Easy to update without recompiling.
• In-game GM command
• /load_version → Show current version.
• /load_version <version> → Update version in DB.
• /load_version <version> 1 → Update DB and kick all non-GM players.
• P2P Synchronization
• Version update is broadcast to all channels instantly.
• Outdated clients are disconnected everywhere, no restart required.
• Login protection
• Players with mismatching client versions cannot log in.

Benefits:

Quote

• Prevents outdated clients from connecting.
• Centralized version control in the database.
• Enforce updates without restarting the server.
• Automatic player kick on version change.
• Lightweight, minimal modifications, easy to integrate.

 

Preview Video:  Watch on ok.ru

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Released to support the community and help server owners improve client integrity.

Enjoy!

Edited October 3, 2025 by VegaS™

[DemOnJR 1214]

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Updated 02/10/2025

 

Edited October 2, 2025 by DemOnJR

[ergod 208]

Fixed version reuploaded
Issue has been identified and resolved.

Changes in:

• input.h
• cmd_gm.cpp

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[Werwolf94 12]

I really want to implement this to my server but I cant, I always get some errors while I try to compile the server side codes.
The first is config.cpp, I see my compiler doesn't like the unique_ptr, if I write auto_ptr instead, it gives me less error:

'pMsg' was not declared in this scope

I had to modify the input_p2p.cpp file from this:

for (auto it = set.begin(); it != set.end(); ++it)

To this:

for (DESC_MANAGER::DESC_SET::const_iterator it = set.begin(); it != set.end(); ++it)

To not get compiling error.
But I can't figure out how to solve the pMsg related error.

My client compiler (VS2013 shitty Terenzo files) also had a hard time when I put this line:

#ifdef __NEW_CLIENT_VERSION_CHECK__
			strncpy(LoginPacket.clientVersion, g_ClientVersion.c_str(), sizeof(LoginPacket.clientVersion));
#endif

To:

		if (!openid_test)
		{
			[...]
		}else{
			[...]
			// 비밀번호를 메모리에 계속 갖고 있는 문제가 있어서, 사용 즉시 날리는 것으로 변경
			#ifdef __NEW_CLIENT_VERSION_CHECK__
			strncpy(LoginPacket.clientVersion, g_ClientVersion.c_str(), sizeof(LoginPacket.clientVersion));
			#endif
			[...]
		}

As you suggested, I could only compile it if I put it outside of the if (!openid_test)'s else case under the second corean text, If I put it to the suggested place I got "takes 3 argoument" errors (sorry I didn't remember the exact message).

I tried to compile under an C++17 upgraded FreeBSD9.2 VDI but I could't compile it there too.
Could you recommend a good VDI to compile your code?
Or the tutorial has some wrong steps? 
Also the Locale_inc.h, packet.h, PythonNetworkStreamPhaseGame.cpp files are 0KB empty files in the UserInterface tutorial folder, can I be sure there are nothing to modify there?
Tomorrow I try it again with a FreeBSD12 VDI with a CLANG-9 compiler, if I don't succeed there I will sadly revert these changes and I go back to my old python method where players clients send their messages in the global chat like this via uichat.py and uiwhisper.py:

PlayerName [v0.1]: Message

I hope I could implement your release to my server someday!
Thanks if you could help me or us somehow!

[ergod 208]

 

 

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