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[CSM] Add flavour limits controlled by server (#5930)

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* [CSM] Add flavour limits controlled by server

Server send flavour limits to client permitting to disable or limit some Lua calls

* Add limits for reading nodedefs and itemdefs

* flavour: Add lookup node limits

* Merge get_node_or_nil into get_node.

Sending fake node doesn't make sense in CSM, just return nil if node is not available for any reason

* Add node range customization when noderange flavour is enabled (default 8 nodes)

* Limit nodes range & disable chat message sending by default

* Bump protocol version
This commit is contained in:
Loïc Blot 2017-07-18 21:39:55 +02:00 • committed by GitHub
parent 7e3cdf7088
commit 79f19b8369
18 changed files with 136 additions and 29 deletions
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13
minetest.conf.example
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@ -1172,6 +1172,19 @@
# type: bool
# server_side_occlusion_culling = true
# Restricts the access of certain client-side functions on servers
# Combine these byteflags below to restrict more client-side features:
# LOOKUP_NODES_LIMIT: 1 (limits get_node call client-side to csm_flavour_noderange_limit)
# CHAT_MESSAGES: 2 (disable send_chat_message call client-side)
# READ_ITEMDEFS: 4 (disable get_item_def call client-side)
# READ_NODEDEFS: 8 (disable get_node_def call client-side)
# type: int
# csm_flavour_limits = 3
# If the CSM flavour for node range is enabled, get_node is limited to
# this many nodes from the player.
# csm_flavour_noderange_limit 8
## Mapgen
# Name of map generator to be used when creating a new world.