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[SOLVED] Dealing with malformed packets.


Lucius Q. User
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If a certain kind of packet is recieved on a server, then either the mod has a bug, or the client is hacking. What should the server do in such situation? Kick the player from server? Tell the player in chat that a error occured? Something entirely different?

Edited by Lucius Q. User
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5 hours ago, Lucius Q. User said:

Let's say in my mod a have a gui that allows the player to select a block in the world. When the block is selected, the client sends a packet with it's coordinates to the server. Some blocks can't be selected in this manner and the gui disallows them from being selected. 

My question is: What should the server do, if the packet contains coordinates for one of the disallowed blocks. Kick the player from server? Tell the player in chat that a error occured? Something entirely different?

Ok. So the thing is that even when you are playing in singleplayer there is still a server. In Minecraft we have both physical and logical sides. Meaning that singleplayer both has a server and a client, and Multiplayer is separated physically between server and client. So I suggest just telling the player that the block(s) that s/he selected are wrong and which ones they selected are wrong.

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

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39 minutes ago, Animefan8888 said:

Ok. So the thing is that even when you are playing in singleplayer there is still a server. In Minecraft we have both physical and logical sides. Meaning that singleplayer both has a server and a client, and Multiplayer is separated physically between server and client. So I suggest just telling the player that the block(s) that s/he selected are wrong and which ones they selected are wrong.

Sigh.

1. I know about sides, thanks.

2. The question is: If a certain kind of packet is recieved on a server, then either the mod has a bug, or the client is hacking. What should i do in such situation. 

 

I edited the OP to make it more concise. 

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1 minute ago, Lucius Q. User said:

The question is: If a certain kind of packet is recieved on a server, then either the mod has a bug, or the client is hacking. What should i do in such situation. 

I would make it a config option. Allow the server admin(s) to selected between kicking or sending a message.

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

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