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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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10
src/script/lua_api/l_env.cpp
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@ -25,6 +25,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "lua_api/l_vmanip.h"
#include "common/c_converter.h"
#include "common/c_content.h"
#include <algorithm>
#include "scripting_server.h"
#include "environment.h"
#include "server.h"
@ -726,6 +727,15 @@ int ModApiEnvMod::l_find_node_near(lua_State *L)
}
int start_radius = (lua_toboolean(L, 4)) ? 0 : 1;
#ifndef SERVER
// Client API limitations
if (getClient(L) &&
getClient(L)->checkCSMFlavourLimit(CSMFlavourLimit::CSM_FL_LOOKUP_NODES)) {
radius = std::max<int>(radius, getClient(L)->getCSMNodeRangeLimit());
}
#endif
for (int d = start_radius; d <= radius; d++) {
std::vector<v3s16> list = FacePositionCache::getFacePositions(d);
for (std::vector<v3s16>::iterator i = list.begin();