/item and /give tries to spawn technical blocks, resulting in client crash

[mathiascode]

Whenever I try to give myself technical blocks on my server (for example the Bed Block, ID 26), the client crashes as technical blocks don't exist in item form anymore since 1.7. If I'm correct, 1.6 support for MCServer was removed recently, so is there a possibility to remove those items from the item list the /item and /give commands use?

I allow people on my server to use these commands, and some of them may try to get technical blocks, without knowing that their clients will crash.

[madmaxoft]

How does Vanilla handle that - can you give yourself the invalid item? Does it have any kind of blacklist?

[mathiascode]

In 1.7 Vanilla, when I try to give myself technical blocks with the /give command, it gives an error saying "There is no such item with ID X".

[bearbin]

Maybe make blocking the technical stuff the default and have a unsafegive
command?

[madmaxoft]

I think the easiest solution would be to implement a (configurable) blacklist of givable items, /give would consult the blacklist before giving the item and if we ever need to give the unsafe items, then the /unsafegive command is a good option. I was thinking about having an argument for /give that would disable the blacklist, but that's somewhat problematic if ever the vanilla command receives other parameters, we want to be as compatible as possible.

Any Lua coders up to this task? It should be relatively easy.