Plugin Verification

Hi I was wondering if there's away my plugin can communicate with a web server to see if a licence key is valid

 

@Kharte321 Yes but why do that at all?

 

@bwfcwalshy Do Verify My Plugin My HCF Core

 

Yes its possible, you can setup a new a Java UUID for each copy. Check if it matches with whatever database you are connecting too. Then check if it the UUID is valid.

 

@Kharte321
Although you can use @krizzdawg 's idea, there may be a better option. We need to know exactly what you need to verify and why you need your plugin to be verified.

 

Zombie_Striker, How are you not a moderator yet? You are soo active on these forums. Also very helpful.

 

@Kharte321

If you are trying to make your plugin require a license to activate, then yes, that is possible. It is also possible to circumvent in an hour (for myself) or a lazy afternoon (for a determined noob).

Your protection is going to be pointless, is what I'm getting at.

 

Can anybody give example code?

 

@timtower
There is an Anti-Hack plugin which requires the user to install a client program to be able to play. Yes, really.
This checks your versions folder or something and sends some random "encrypted" packet to the server.
To make decompiling harder it was written in C++.

Guess what appeared a few days later in very same thread from a user? A small commandline program sending the correct packet in response to the server's authenticate request.

And this was made by decompiling and understanding the assembler code behind, which is a lot harder than just decompiling Java.

@Kharte321
Yes, I would just not implement such a check. There are ways to circumvent it and it is especially easy in Java.