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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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19
src/network/networkprotocol.h
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@ -17,8 +17,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef NETWORKPROTOCOL_HEADER
#define NETWORKPROTOCOL_HEADER
#pragma once
#include "util/string.h"
/*
@ -168,6 +168,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
* sender
* type (RAW, NORMAL, ANNOUNCE, SYSTEM)
* content
Add TOCLIENT_CSM_FLAVOUR_LIMITS to define which CSM flavour should be limited
*/
#define LATEST_PROTOCOL_VERSION 35
@ -313,6 +314,11 @@ enum ToClientCommand
f1000 time_speed
*/
TOCLIENT_CSM_FLAVOUR_LIMITS = 0x2A,
/*
u32 CSMFlavourLimits byteflag
*/
// (oops, there is some gap here)
TOCLIENT_CHAT_MESSAGE = 0x2F,
@ -1003,5 +1009,12 @@ enum PlayerListModifer: u8
PLAYER_LIST_REMOVE,
};
enum CSMFlavourLimit : u64 {
CSM_FL_NONE = 0x00000000,
CSM_FL_LOOKUP_NODES = 0x00000001, // Limit node lookups
CSM_FL_CHAT_MESSAGES = 0x00000002, // Disable chat message sending from CSM
CSM_FL_READ_ITEMDEFS = 0x00000004, // Disable itemdef lookups
CSM_FL_READ_NODEDEFS = 0x00000008, // Disable nodedef lookups
CSM_FL_ALL = 0xFFFFFFFF,
};
#endif