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CSM: add requested CSM_RF_READ_PLAYERINFO (#8007)
* CSM: add requested CSM_RF_READ_PLAYERINFO This new CSM limit permit to limit PLAYERINFO read from server. It affects get_player_names call
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@ -40,8 +40,13 @@ end)
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core.register_chatcommand("list_players", {
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description = core.gettext("List online players"),
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func = function(param)
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local players = table.concat(core.get_player_names(), ", ")
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core.display_chat_message(core.gettext("Online players: ") .. players)
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local player_names = core.get_player_names()
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if not player_names then
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return false, core.gettext("This command is disabled by server.")
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end
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local players = table.concat(player_names, ", ")
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return true, core.gettext("Online players: ") .. players
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end
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})
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@ -1198,7 +1198,7 @@ server_side_occlusion_culling (Server side occlusion culling) bool true
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# READ_NODEDEFS: 8 (disable get_node_def call client-side)
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# LOOKUP_NODES_LIMIT: 16 (limits get_node call client-side to
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# csm_restriction_noderange)
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csm_restriction_flags (Client side modding restrictions) int 30
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csm_restriction_flags (Client side modding restrictions) int 62
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# If the CSM restriction for node range is enabled, get_node calls are limited
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# to this distance from the player to the node.
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@ -763,7 +763,7 @@ Call these functions only at load time!
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### Client Environment
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* `minetest.get_player_names()`
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* Returns list of player names on server
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* Returns list of player names on server (nil if CSM_RF_READ_PLAYERINFO is enabled by server)
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* `minetest.disconnect()`
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* Disconnect from the server and exit to main menu.
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* Returns `false` if the client is already disconnecting otherwise returns `true`.
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@ -1468,8 +1468,9 @@
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# READ_NODEDEFS: 8 (disable get_node_def call client-side)
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# LOOKUP_NODES_LIMIT: 16 (limits get_node call client-side to
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# csm_restriction_noderange)
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# READ_PLAYERINFO: 32 (disable get_player_names call client-side)
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# type: int
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# csm_restriction_flags = 30
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# csm_restriction_flags = 62
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# If the CSM restriction for node range is enabled, get_node calls are limited
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# to this distance from the player to the node.
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@ -346,7 +346,7 @@ void set_default_settings(Settings *settings)
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settings->setDefault("max_block_send_distance", "9");
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settings->setDefault("block_send_optimize_distance", "4");
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settings->setDefault("server_side_occlusion_culling", "true");
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settings->setDefault("csm_restriction_flags", "30");
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settings->setDefault("csm_restriction_flags", "62");
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settings->setDefault("csm_restriction_noderange", "0");
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settings->setDefault("max_clearobjects_extra_loaded_blocks", "4096");
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settings->setDefault("time_speed", "72");
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@ -952,5 +952,6 @@ enum CSMRestrictionFlags : u64 {
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CSM_RF_READ_ITEMDEFS = 0x00000004, // Disable itemdef lookups
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CSM_RF_READ_NODEDEFS = 0x00000008, // Disable nodedef lookups
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CSM_RF_LOOKUP_NODES = 0x00000010, // Limit node lookups
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CSM_RF_READ_PLAYERINFO = 0x00000020, // Disable player info lookups
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CSM_RF_ALL = 0xFFFFFFFF,
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};
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@ -116,6 +116,13 @@ int ModApiClient::l_clear_out_chat_queue(lua_State *L)
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// get_player_names()
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int ModApiClient::l_get_player_names(lua_State *L)
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{
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// clang-format off
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if (getClient(L)->checkCSMRestrictionFlag(
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CSMRestrictionFlags::CSM_RF_READ_PLAYERINFO)) {
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return 0;
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}
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// clang-format on
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const std::list<std::string> &plist = getClient(L)->getConnectedPlayerNames();
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lua_createtable(L, plist.size(), 0);
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int newTable = lua_gettop(L);
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