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path: root/src/script/lua_api/l_server.cpp
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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "lua_api/l_server.h"
#include "lua_api/l_internal.h"
#include "common/c_converter.h"
#include "common/c_content.h"
#include "cpp_api/s_base.h"
#include "server.h"
#include "environment.h"
#include "player.h"
#include "log.h"
#include <algorithm>

// request_shutdown()
int ModApiServer::l_request_shutdown(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	const char *msg = lua_tolstring(L, 1, NULL);
	bool reconnect = lua_toboolean(L, 2);
	float seconds_before_shutdown = lua_tonumber(L, 3);
	getServer(L)->requestShutdown(msg ? msg : "", reconnect, seconds_before_shutdown);
	return 0;
}

// get_server_status()
int ModApiServer::l_get_server_status(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	lua_pushstring(L, wide_to_narrow(getServer(L)->getStatusString()).c_str());
	return 1;
}

// get_server_uptime()
int ModApiServer::l_get_server_uptime(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	lua_pushnumber(L, getServer(L)->getUptime());
	return 1;
}


// print(text)
int ModApiServer::l_print(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	std::string text;
	text = luaL_checkstring(L, 1);
	getServer(L)->printToConsoleOnly(text);
	return 0;
}

// chat_send_all(text)
int ModApiServer::l_chat_send_all(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	const char *text = luaL_checkstring(L, 1);
	// Get server from registry
	Server *server = getServer(L);
	// Send
	server->notifyPlayers(narrow_to_wide(text));
	return 0;
}

// chat_send_player(name, text)
int ModApiServer::l_chat_send_player(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	const char *name = luaL_checkstring(L, 1);
	const char *text = luaL_checkstring(L, 2);

	// Get server from registry
	Server *server = getServer(L);
	// Send
	server->notifyPlayer(name, narrow_to_wide(text));
	return 0;
}

// get_player_privs(name, text)
int ModApiServer::l_get_player_privs(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	const char *name = luaL_checkstring(L, 1);
	// Get server from registry
	Server *server = getServer(L);
	// Do it
	lua_newtable(L);
	int table = lua_gettop(L);
	std::set<std::string> privs_s = server->getPlayerEffectivePrivs(name);
	for(std::set<std::string>::const_iterator
			i = privs_s.begin(); i != privs_s.end(); ++i){
		lua_pushboolean(L, true);
		lua_setfield(L, table, i->c_str());
	}
	lua_pushvalue(L, table);
	return 1;
}

// get_player_ip()
int ModApiServer::l_get_player_ip(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	const char * name = luaL_checkstring(L, 1);
	RemotePlayer *player = dynamic_cast<ServerEnvironment *>(getEnv(L))->getPlayer(name);
	if(player == NULL)
	{
		lua_pushnil(L); // no such player
		return 1;
	}
	try
	{
		Address addr = getServer(L)->getPeerAddress(player->peer_id);
		std::string ip_str = addr.serializeString();
		lua_pushstring(L, ip_str.c_str());
		return 1;
	}
	catch(con::PeerNotFoundException) // unlikely
	{
		dstream << FUNCTION_NAME << ": peer was not found" << std::endl;
		lua_pushnil(L); // error
		return 1;
	}
}

// get_player_information(name)
int ModApiServer::l_get_player_information(lua_State *L)
{

	NO_MAP_LOCK_REQUIRED;
	const char * name = luaL_checkstring(L, 1);
	RemotePlayer *player = dynamic_cast<ServerEnvironment *>(getEnv(L))->getPlayer(name);
	if (player == NULL) {
		lua_pushnil(L); // no such player
		return 1;
	}

	Address addr;
	try
	{
		addr = getServer(L)->getPeerAddress(player->peer_id);
	}
	catch(con::PeerNotFoundException) // unlikely
	{
		dstream << FUNCTION_NAME << ": peer was not found" << std::endl;
		lua_pushnil(L); // error
		return 1;
	}

	float min_rtt,max_rtt,avg_rtt,min_jitter,max_jitter,avg_jitter;
	ClientState state;
	u32 uptime;
	u16 prot_vers;
	u8 ser_vers,major,minor,patch;
	std::string vers_string;

#define ERET(code)                                                             \
	if (!(code)) {                                                             \
		dstream << FUNCTION_NAME << ": peer was not found" << std::endl;     \
		lua_pushnil(L); /* error */                                            \
		return 1;                                                              \
	}

	ERET(getServer(L)->getClientConInfo(player->peer_id,con::MIN_RTT,&min_rtt))
	ERET(getServer(L)->getClientConInfo(player->peer_id,con::MAX_RTT,&max_rtt))
	ERET(getServer(L)->getClientConInfo(player->peer_id,con::AVG_RTT,&avg_rtt))
	ERET(getServer(L)->getClientConInfo(player->peer_id,con::MIN_JITTER,&min_jitter))
	ERET(getServer(L)->getClientConInfo(player->peer_id,con::MAX_JITTER,&max_jitter))
	ERET(getServer(L)->getClientConInfo(player->peer_id,con::AVG_JITTER,&avg_jitter))

	ERET(getServer(L)->getClientInfo(player->peer_id,
										&state, &uptime, &ser_vers, &prot_vers,
										&major, &minor, &patch, &vers_string))

	lua_newtable(L);
	int table = lua_gettop(L);

	lua_pushstring(L,"address");
	lua_pushstring(L, addr.serializeString().c_str());
	lua_settable(L, table);

	lua_pushstring(L,"ip_version");
	if (addr.getFamily() == AF_INET) {
		lua_pushnumber(L, 4);
	} else if (addr.getFamily() == AF_INET6) {
		lua_pushnumber(L, 6);
	} else {
		lua_pushnumber(L, 0);
	}
	lua_settable(L, table);

	lua_pushstring(L,"min_rtt");
	lua_pushnumber(L, min_rtt);
	lua_settable(L, table);

	lua_pushstring(L,"max_rtt");
	lua_pushnumber(L, max_rtt);
	lua_settable(L, table);

	lua_pushstring(L,"avg_rtt");
	lua_pushnumber(L, avg_rtt);
	lua_settable(L, table);

	lua_pushstring(L,"min_jitter");
	lua_pushnumber(L, min_jitter);
	lua_settable(L, table);

	lua_pushstring(L,"max_jitter");
	lua_pushnumber(L, max_jitter);
	lua_settable(L, table);

	lua_pushstring(L,"avg_jitter");
	lua_pushnumber(L, avg_jitter);
	lua_settable(L, table);

	lua_pushstring(L,"connection_uptime");
	lua_pushnumber(L, uptime);
	lua_settable(L, table);

	lua_pushstring(L,"protocol_version");
	lua_pushnumber(L, prot_vers);
	lua_settable(L, table);
	
#ifndef NDEBUG
	lua_pushstring(L,"serialization_version");
	lua_pushnumber(L, ser_vers);
	lua_settable(L, table);

	lua_pushstring(L,"major");
	lua_pushnumber(L, major);
	lua_settable(L, table);

	lua_pushstring(L,"minor");
	lua_pushnumber(L, minor);
	lua_settable(L, table);

	lua_pushstring(L,"patch");
	lua_pushnumber(L, patch);
	lua_settable(L, table);

	lua_pushstring(L,"version_string");
	lua_pushstring(L, vers_string.c_str());
	lua_settable(L, table);

	lua_pushstring(L,"state");
	lua_pushstring(L,ClientInterface::state2Name(state).c_str());
	lua_settable(L, table);
#endif

#undef ERET
	return 1;
}

// get_ban_list()
int ModApiServer::l_get_ban_list(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	lua_pushstring(L, getServer(L)->getBanDescription("").c_str());
	return 1;
}

// get_ban_description()
int ModApiServer::l_get_ban_description(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	const char * ip_or_name = luaL_checkstring(L, 1);
	lua_pushstring(L, getServer(L)->getBanDescription(std::string(ip_or_name)).c_str());
	return 1;
}

// ban_player()
int ModApiServer::l_ban_player(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	const char * name = luaL_checkstring(L, 1);
	RemotePlayer *player = dynamic_cast<ServerEnvironment *>(getEnv(L))->getPlayer(name);
	if (player == NULL) {
		lua_pushboolean(L, false); // no such player
		return 1;
	}
	try
	{
		Address addr = getServer(L)->getPeerAddress(
			dynamic_cast<ServerEnvironment *>(getEnv(L))->getPlayer(name)->peer_id);
		std::string ip_str = addr.serializeString();
		getServer(L)->setIpBanned(ip_str, name);
	}
	catch(con::PeerNotFoundException) // unlikely
	{
		dstream << FUNCTION_NAME << ": peer was not found" << std::endl;
		lua_pushboolean(L, false); // error
		return 1;
	}
	lua_pushboolean(L, true);
	return 1;
}

// kick_player(name, [reason]) -> success
int ModApiServer::l_kick_player(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	const char *name = luaL_checkstring(L, 1);
	std::string message;
	if (lua_isstring(L, 2))
	{
		message = std::string("Kicked: ") + lua_tostring(L, 2);
	}
	else
	{
		message = "Kicked.";
	}

	RemotePlayer *player = dynamic_cast<ServerEnvironment *>(getEnv(L))->getPlayer(name);
	if (player == NULL) {
		lua_pushboolean(L, false); // No such player
		return 1;
	}
	getServer(L)->DenyAccess_Legacy(player->peer_id, utf8_to_wide(message));
	lua_pushboolean(L, true);
	return 1;
}

int ModApiServer::l_remove_player(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	std::string name = luaL_checkstring(L, 1);
	ServerEnvironment *s_env = dynamic_cast<ServerEnvironment *>(getEnv(L));
	assert(s_env);

	RemotePlayer *player = s_env->getPlayer(name.c_str());
	if (!player)
		lua_pushinteger(L, s_env->removePlayerFromDatabase(name) ? 0 : 1);
	else
		lua_pushinteger(L, 2);

	return 1;
}

// unban_player_or_ip()
int ModApiServer::l_unban_player_or_ip(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	const char * ip_or_name = luaL_checkstring(L, 1);
	getServer(L)->unsetIpBanned(ip_or_name);
	lua_pushboolean(L, true);
	return 1;
}

// show_formspec(playername,formname,formspec)
int ModApiServer::l_show_formspec(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	const char *playername = luaL_checkstring(L, 1);
	const char *formname = luaL_checkstring(L, 2);
	const char *formspec = luaL_checkstring(L, 3);

	if(getServer(L)->showFormspec(playername,formspec,formname))
	{
		lua_pushboolean(L, true);
	}else{
		lua_pushboolean(L, false);
	}
	return 1;
}

// get_current_modname()
int ModApiServer::l_get_current_modname(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	lua_rawgeti(L, LUA_REGISTRYINDEX, CUSTOM_RIDX_CURRENT_MOD_NAME);
	return 1;
}

// get_modpath(modname)
int ModApiServer::l_get_modpath(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	std::string modname = luaL_checkstring(L, 1);
	const ModSpec *mod = getServer(L)->getModSpec(modname);
	if (!mod) {
		lua_pushnil(L);
		return 1;
	}
	lua_pushstring(L, mod->path.c_str());
	return 1;
}

// get_modnames()
// the returned list is sorted alphabetically for you
int ModApiServer::l_get_modnames(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;

	// Get a list of mods
	std::vector<std::string> modlist;
	getServer(L)->getModNames(modlist);

	// Take unsorted items from mods_unsorted and sort them into
	// mods_sorted; not great performance but the number of mods on a
	// server will likely be small.
	std::sort(modlist.begin(), modlist.end());

	// Package them up for Lua
	lua_createtable(L, modlist.size(), 0);
	std::vector<std::string>::iterator iter = modlist.begin();
	for (u16 i = 0; iter != modlist.end(); ++iter) {
		lua_pushstring(L, iter->c_str());
		lua_rawseti(L, -2, ++i);
	}
	return 1;
}

// get_worldpath()
int ModApiServer::l_get_worldpath(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	std::string worldpath = getServer(L)->getWorldPath();
	lua_pushstring(L, worldpath.c_str());
	return 1;
}

// sound_play(spec, parameters)
int ModApiServer::l_sound_play(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	SimpleSoundSpec spec;
	read_soundspec(L, 1, spec);
	ServerSoundParams params;
	read_server_sound_params(L, 2, params);
	s32 handle = getServer(L)->playSound(spec, params);
	lua_pushinteger(L, handle);
	return 1;
}

// sound_stop(handle)
int ModApiServer::l_sound_stop(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	int handle = luaL_checkinteger(L, 1);
	getServer(L)->stopSound(handle);
	return 0;
}

int ModApiServer::l_sound_fade(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	s32 handle = luaL_checkinteger(L, 1);
	float step = luaL_checknumber(L, 2);
	float gain = luaL_checknumber(L, 3);
	getServer(L)->fadeSound(handle, step, gain);
	return 0;
}

// is_singleplayer()
int ModApiServer::l_is_singleplayer(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	lua_pushboolean(L, getServer(L)->isSingleplayer());
	return 1;
}

// notify_authentication_modified(name)
int ModApiServer::l_notify_authentication_modified(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	std::string name = "";
	if(lua_isstring(L, 1))
		name = lua_tostring(L, 1);
	getServer(L)->reportPrivsModified(name);
	return 0;
}

// get_last_run_mod()
int ModApiServer::l_get_last_run_mod(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	lua_rawgeti(L, LUA_REGISTRYINDEX, CUSTOM_RIDX_CURRENT_MOD_NAME);
	const char *current_mod = lua_tostring(L, -1);
	if (current_mod == NULL || current_mod[0] == '\0') {
		lua_pop(L, 1);
		lua_pushstring(L, getScriptApiBase(L)->getOrigin().c_str());
	}
	return 1;
}

// set_last_run_mod(modname)
int ModApiServer::l_set_last_run_mod(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
#ifdef SCRIPTAPI_DEBUG
	const char *mod = lua_tostring(L, 1);
	getScriptApiBase(L)->setOriginDirect(mod);
	//printf(">>>> last mod set from Lua: %s\n", mod);
#endif
	return 0;
}

void ModApiServer::Initialize(lua_State *L, int top)
{
	API_FCT(request_shutdown);
	API_FCT(get_server_status);
	API_FCT(get_server_uptime);
	API_FCT(get_worldpath);
	API_FCT(is_singleplayer);

	API_FCT(get_current_modname);
	API_FCT(get_modpath);
	API_FCT(get_modnames);

	API_FCT(print);

	API_FCT(chat_send_all);
	API_FCT(chat_send_player);
	API_FCT(show_formspec);
	API_FCT(sound_play);
	API_FCT(sound_stop);
	API_FCT(sound_fade);

	API_FCT(get_player_information);
	API_FCT(get_player_privs);
	API_FCT(get_player_ip);
	API_FCT(get_ban_list);
	API_FCT(get_ban_description);
	API_FCT(ban_player);
	API_FCT(kick_player);
	API_FCT(remove_player);
	API_FCT(unban_player_or_ip);
	API_FCT(notify_authentication_modified);

	API_FCT(get_last_run_mod);
	API_FCT(set_last_run_mod);
}
span class="hl opt">); // Call function for(int i = 0; i < nargs; i++) lua_pushvalue(L, arg+i); if(lua_pcall(L, nargs, 1, 0)) script_error(L, "error: %s", lua_tostring(L, -1)); // Move return value to designated space in stack // Or pop it if(first_loop){ // Result of first callback is always moved lua_replace(L, rv); first_loop = false; } else { // Otherwise, what happens depends on the mode if(mode == RUN_CALLBACKS_MODE_FIRST) lua_pop(L, 1); else if(mode == RUN_CALLBACKS_MODE_LAST) lua_replace(L, rv); else if(mode == RUN_CALLBACKS_MODE_AND || mode == RUN_CALLBACKS_MODE_AND_SC){ if((bool)lua_toboolean(L, rv) == true && (bool)lua_toboolean(L, -1) == false) lua_replace(L, rv); else lua_pop(L, 1); } else if(mode == RUN_CALLBACKS_MODE_OR || mode == RUN_CALLBACKS_MODE_OR_SC){ if((bool)lua_toboolean(L, rv) == false && (bool)lua_toboolean(L, -1) == true) lua_replace(L, rv); else lua_pop(L, 1); } else assert(0); } // Handle short circuit modes if(mode == RUN_CALLBACKS_MODE_AND_SC && (bool)lua_toboolean(L, rv) == false) break; else if(mode == RUN_CALLBACKS_MODE_OR_SC && (bool)lua_toboolean(L, rv) == true) break; // value removed, keep key for next iteration } // Remove stuff from stack, leaving only the return value lua_settop(L, rv); // Fix return value in case no callbacks were called if(first_loop){ if(mode == RUN_CALLBACKS_MODE_AND || mode == RUN_CALLBACKS_MODE_AND_SC){ lua_pop(L, 1); lua_pushboolean(L, true); } else if(mode == RUN_CALLBACKS_MODE_OR || mode == RUN_CALLBACKS_MODE_OR_SC){ lua_pop(L, 1); lua_pushboolean(L, false); } } } bool scriptapi_on_chat_message(lua_State *L, const std::string &name, const std::string &message) { realitycheck(L); assert(lua_checkstack(L, 20)); StackUnroller stack_unroller(L); // Get minetest.registered_on_chat_messages lua_getglobal(L, "minetest"); lua_getfield(L, -1, "registered_on_chat_messages"); // Call callbacks lua_pushstring(L, name.c_str()); lua_pushstring(L, message.c_str()); scriptapi_run_callbacks(L, 2, RUN_CALLBACKS_MODE_OR_SC); bool ate = lua_toboolean(L, -1); return ate; } void scriptapi_on_shutdown(lua_State *L) { realitycheck(L); assert(lua_checkstack(L, 20)); StackUnroller stack_unroller(L); // Get registered shutdown hooks lua_getglobal(L, "minetest"); lua_getfield(L, -1, "registered_on_shutdown"); // Call callbacks scriptapi_run_callbacks(L, 0, RUN_CALLBACKS_MODE_FIRST); } void scriptapi_on_newplayer(lua_State *L, ServerActiveObject *player) { realitycheck(L); assert(lua_checkstack(L, 20)); StackUnroller stack_unroller(L); // Get minetest.registered_on_newplayers lua_getglobal(L, "minetest"); lua_getfield(L, -1, "registered_on_newplayers"); // Call callbacks objectref_get_or_create(L, player); scriptapi_run_callbacks(L, 1, RUN_CALLBACKS_MODE_FIRST); } void scriptapi_on_dieplayer(lua_State *L, ServerActiveObject *player) { realitycheck(L); assert(lua_checkstack(L, 20)); StackUnroller stack_unroller(L); // Get minetest.registered_on_dieplayers lua_getglobal(L, "minetest"); lua_getfield(L, -1, "registered_on_dieplayers"); // Call callbacks objectref_get_or_create(L, player); scriptapi_run_callbacks(L, 1, RUN_CALLBACKS_MODE_FIRST); } bool scriptapi_on_respawnplayer(lua_State *L, ServerActiveObject *player) { realitycheck(L); assert(lua_checkstack(L, 20)); StackUnroller stack_unroller(L); // Get minetest.registered_on_respawnplayers lua_getglobal(L, "minetest"); lua_getfield(L, -1, "registered_on_respawnplayers"); // Call callbacks objectref_get_or_create(L, player); scriptapi_run_callbacks(L, 1, RUN_CALLBACKS_MODE_OR); bool positioning_handled_by_some = lua_toboolean(L, -1); return positioning_handled_by_some; } void scriptapi_on_joinplayer(lua_State *L, ServerActiveObject *player) { realitycheck(L); assert(lua_checkstack(L, 20)); StackUnroller stack_unroller(L); // Get minetest.registered_on_joinplayers lua_getglobal(L, "minetest"); lua_getfield(L, -1, "registered_on_joinplayers"); // Call callbacks objectref_get_or_create(L, player); scriptapi_run_callbacks(L, 1, RUN_CALLBACKS_MODE_FIRST); } void scriptapi_on_leaveplayer(lua_State *L, ServerActiveObject *player) { realitycheck(L); assert(lua_checkstack(L, 20)); StackUnroller stack_unroller(L); // Get minetest.registered_on_leaveplayers lua_getglobal(L, "minetest"); lua_getfield(L, -1, "registered_on_leaveplayers"); // Call callbacks objectref_get_or_create(L, player); scriptapi_run_callbacks(L, 1, RUN_CALLBACKS_MODE_FIRST); } /* player */ void scriptapi_on_player_receive_fields(lua_State *L, ServerActiveObject *player, const std::string &formname, const std::map<std::string, std::string> &fields) { realitycheck(L); assert(lua_checkstack(L, 20)); StackUnroller stack_unroller(L); // Get minetest.registered_on_chat_messages lua_getglobal(L, "minetest"); lua_getfield(L, -1, "registered_on_player_receive_fields"); // Call callbacks // param 1 objectref_get_or_create(L, player); // param 2 lua_pushstring(L, formname.c_str()); // param 3 lua_newtable(L); for(std::map<std::string, std::string>::const_iterator i = fields.begin(); i != fields.end(); i++){ const std::string &name = i->first; const std::string &value = i->second; lua_pushstring(L, name.c_str()); lua_pushlstring(L, value.c_str(), value.size()); lua_settable(L, -3); } scriptapi_run_callbacks(L, 3, RUN_CALLBACKS_MODE_OR_SC); } /*****************************************************************************/ /* Api functions */ /*****************************************************************************/ // debug(text) // Writes a line to dstream static int l_debug(lua_State *L) { std::string text = lua_tostring(L, 1); dstream << text << std::endl; return 0; } // log([level,] text) // Writes a line to the logger. // The one-argument version logs to infostream. // The two-argument version accept a log level: error, action, info, or verbose. static int l_log(lua_State *L) { std::string text; LogMessageLevel level = LMT_INFO; if(lua_isnone(L, 2)) { text = lua_tostring(L, 1); } else { std::string levelname = luaL_checkstring(L, 1); text = luaL_checkstring(L, 2); if(levelname == "error") level = LMT_ERROR; else if(levelname == "action") level = LMT_ACTION; else if(levelname == "verbose") level = LMT_VERBOSE; } log_printline(level, text); return 0; } // request_shutdown() static int l_request_shutdown(lua_State *L) { get_server(L)->requestShutdown(); return 0; } // get_server_status() static int l_get_server_status(lua_State *L) { lua_pushstring(L, wide_to_narrow(get_server(L)->getStatusString()).c_str()); return 1; } // register_biome_groups({frequencies}) static int l_register_biome_groups(lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); int index = 1; BiomeDefManager *bmgr = get_server(L)->getBiomeDef(); if (!bmgr) { verbosestream << "register_biome_groups: BiomeDefManager not active" << std::endl; return 0; } lua_pushnil(L); for (int i = 1; lua_next(L, index) != 0; i++) { bmgr->addBiomeGroup(lua_tonumber(L, -1)); lua_pop(L, 1); } lua_pop(L, 1); return 0; } // register_biome({lots of stuff}) static int l_register_biome(lua_State *L) { luaL_checktype(L, 1, LUA_TTABLE); int index = 1, groupid; std::string nodename; IWritableNodeDefManager *ndef = get_server(L)->getWritableNodeDefManager(); BiomeDefManager *bmgr = get_server(L)->getBiomeDef(); if (!bmgr) { verbosestream << "register_biome: BiomeDefManager not active" << std::endl; return 0; } groupid = getintfield_default(L, index, "group_id", 0); enum BiomeTerrainType terrain = (BiomeTerrainType)getenumfield(L, index, "terrain_type", es_BiomeTerrainType, BIOME_TERRAIN_NORMAL); Biome *b = bmgr->createBiome(terrain); b->name = getstringfield_default(L, index, "name", ""); if (getstringfield(L, index, "node_top", nodename)) b->n_top = MapNode(ndef->getId(nodename)); else b->n_top = MapNode(CONTENT_IGNORE); if (getstringfield(L, index, "node_filler", nodename)) b->n_filler = MapNode(ndef->getId(nodename)); else b->n_filler = b->n_top; b->ntopnodes = getintfield_default(L, index, "num_top_nodes", 0); b->height_min = getintfield_default(L, index, "height_min", 0); b->height_max = getintfield_default(L, index, "height_max", 0); b->heat_min = getfloatfield_default(L, index, "heat_min", 0.); b->heat_max = getfloatfield_default(L, index, "heat_max", 0.); b->humidity_min = getfloatfield_default(L, index, "humidity_min", 0.); b->humidity_max = getfloatfield_default(L, index, "humidity_max", 0.); b->np = new NoiseParams; // should read an entire NoiseParams later on... getfloatfield(L, index, "scale", b->np->scale); getfloatfield(L, index, "offset", b->np->offset); b->groupid = (s8)groupid; b->flags = 0; //reserved bmgr->addBiome(b); verbosestream << "register_biome: " << b->name << std::endl; return 0; } static int l_register_ore(lua_State *L) { int index = 1; luaL_checktype(L, index, LUA_TTABLE); IWritableNodeDefManager *ndef = get_server(L)->getWritableNodeDefManager(); EmergeManager *emerge = get_server(L)->getEmergeManager(); enum OreType oretype = (OreType)getenumfield(L, index, "ore_type", es_OreType, ORE_SCATTER); Ore *ore = createOre(oretype); if (!ore) { errorstream << "register_ore: ore_type " << oretype << " not implemented"; return 0; } ore->ore_name = getstringfield_default(L, index, "ore", ""); ore->wherein_name = getstringfield_default(L, index, "wherein", ""); ore->clust_scarcity = getintfield_default(L, index, "clust_scarcity", 1); ore->clust_num_ores = getintfield_default(L, index, "clust_num_ores", 1); ore->clust_size = getintfield_default(L, index, "clust_size", 0); ore->height_min = getintfield_default(L, index, "height_min", 0); ore->height_max = getintfield_default(L, index, "height_max", 0); ore->flags = getflagsfield(L, index, "flags", flagdesc_ore); ore->nthresh = getfloatfield_default(L, index, "noise_threshhold", 0.); lua_getfield(L, index, "noise_params"); ore->np = read_noiseparams(L, -1); lua_pop(L, 1); ore->noise = NULL; if (ore->clust_scarcity <= 0 || ore->clust_num_ores <= 0) { errorstream << "register_ore: clust_scarcity and clust_num_ores" " must be greater than 0" << std::endl; delete ore; return 0; } emerge->ores.push_back(ore); verbosestream << "register_ore: ore '" << ore->ore_name << "' registered" << std::endl; return 0; } // setting_set(name, value) static int l_setting_set(lua_State *L) { const char *name = luaL_checkstring(L, 1); const char *value = luaL_checkstring(L, 2); g_settings->set(name, value); return 0; } // setting_get(name) static int l_setting_get(lua_State *L) { const char *name = luaL_checkstring(L, 1); try{ std::string value = g_settings->get(name); lua_pushstring(L, value.c_str()); } catch(SettingNotFoundException &e){ lua_pushnil(L); } return 1; } // setting_getbool(name) static int l_setting_getbool(lua_State *L) { const char *name = luaL_checkstring(L, 1); try{ bool value = g_settings->getBool(name); lua_pushboolean(L, value); } catch(SettingNotFoundException &e){ lua_pushnil(L); } return 1; } // setting_save() static int l_setting_save(lua_State *L) { get_server(L)->saveConfig(); return 0; } // chat_send_all(text) static int l_chat_send_all(lua_State *L) { const char *text = luaL_checkstring(L, 1); // Get server from registry Server *server = get_server(L); // Send server->notifyPlayers(narrow_to_wide(text)); return 0; } // chat_send_player(name, text) static int l_chat_send_player(lua_State *L) { const char *name = luaL_checkstring(L, 1); const char *text = luaL_checkstring(L, 2); // Get server from registry Server *server = get_server(L); // Send server->notifyPlayer(name, narrow_to_wide(text)); return 0; } // get_player_privs(name, text) static int l_get_player_privs(lua_State *L) { const char *name = luaL_checkstring(L, 1); // Get server from registry Server *server = get_server(L); // Do it lua_newtable(L); int table = lua_gettop(L); std::set<std::string> privs_s = server->getPlayerEffectivePrivs(name); for(std::set<std::string>::const_iterator i = privs_s.begin(); i != privs_s.end(); i++){ lua_pushboolean(L, true); lua_setfield(L, table, i->c_str()); } lua_pushvalue(L, table); return 1; } // get_ban_list() static int l_get_ban_list(lua_State *L) { lua_pushstring(L, get_server(L)->getBanDescription("").c_str()); return 1; } // get_ban_description() static int l_get_ban_description(lua_State *L) { const char * ip_or_name = luaL_checkstring(L, 1); lua_pushstring(L, get_server(L)->getBanDescription(std::string(ip_or_name)).c_str()); return 1; } // ban_player() static int l_ban_player(lua_State *L) { const char * name = luaL_checkstring(L, 1); Player *player = get_env(L)->getPlayer(name); if(player == NULL) { lua_pushboolean(L, false); // no such player return 1; } try { Address addr = get_server(L)->getPeerAddress(get_env(L)->getPlayer(name)->peer_id); std::string ip_str = addr.serializeString(); get_server(L)->setIpBanned(ip_str, name); } catch(con::PeerNotFoundException) // unlikely { dstream << __FUNCTION_NAME << ": peer was not found" << std::endl; lua_pushboolean(L, false); // error return 1; } lua_pushboolean(L, true); return 1; } // unban_player_or_ip() static int l_unban_player_of_ip(lua_State *L) { const char * ip_or_name = luaL_checkstring(L, 1); get_server(L)->unsetIpBanned(ip_or_name); lua_pushboolean(L, true); return 1; } // show_formspec(playername,formname,formspec) static int l_show_formspec(lua_State *L) { const char *playername = luaL_checkstring(L, 1); const char *formname = luaL_checkstring(L, 2); const char *formspec = luaL_checkstring(L, 3); if(get_server(L)->showFormspec(playername,formspec,formname)) { lua_pushboolean(L, true); }else{ lua_pushboolean(L, false); } return 1; } // get_dig_params(groups, tool_capabilities[, time_from_last_punch]) static int l_get_dig_params(lua_State *L) { std::map<std::string, int> groups; read_groups(L, 1, groups); ToolCapabilities tp = read_tool_capabilities(L, 2); if(lua_isnoneornil(L, 3)) push_dig_params(L, getDigParams(groups, &tp)); else push_dig_params(L, getDigParams(groups, &tp, luaL_checknumber(L, 3))); return 1; } // get_hit_params(groups, tool_capabilities[, time_from_last_punch]) static int l_get_hit_params(lua_State *L) { std::map<std::string, int> groups; read_groups(L, 1, groups); ToolCapabilities tp = read_tool_capabilities(L, 2); if(lua_isnoneornil(L, 3)) push_hit_params(L, getHitParams(groups, &tp)); else push_hit_params(L, getHitParams(groups, &tp, luaL_checknumber(L, 3))); return 1; } // get_current_modname() static int l_get_current_modname(lua_State *L) { lua_getfield(L, LUA_REGISTRYINDEX, "minetest_current_modname"); return 1; } // get_modpath(modname) static int l_get_modpath(lua_State *L) { std::string modname = luaL_checkstring(L, 1); // Do it if(modname == "__builtin"){ std::string path = get_server(L)->getBuiltinLuaPath(); lua_pushstring(L, path.c_str()); return 1; } const ModSpec *mod = get_server(L)->getModSpec(modname); if(!mod){ lua_pushnil(L); return 1; } lua_pushstring(L, mod->path.c_str()); return 1; } // get_modnames() // the returned list is sorted alphabetically for you static int l_get_modnames(lua_State *L) { // Get a list of mods std::list<std::string> mods_unsorted, mods_sorted; get_server(L)->getModNames(mods_unsorted); // Take unsorted items from mods_unsorted and sort them into // mods_sorted; not great performance but the number of mods on a // server will likely be small. for(std::list<std::string>::iterator i = mods_unsorted.begin(); i != mods_unsorted.end(); ++i) { bool added = false; for(std::list<std::string>::iterator x = mods_sorted.begin(); x != mods_sorted.end(); ++x) { // I doubt anybody using Minetest will be using // anything not ASCII based :) if((*i).compare(*x) <= 0) { mods_sorted.insert(x, *i); added = true; break; } } if(!added) mods_sorted.push_back(*i); } // Get the table insertion function from Lua. lua_getglobal(L, "table"); lua_getfield(L, -1, "insert"); int insertion_func = lua_gettop(L); // Package them up for Lua lua_newtable(L); int new_table = lua_gettop(L); std::list<std::string>::iterator i = mods_sorted.begin(); while(i != mods_sorted.end()) { lua_pushvalue(L, insertion_func); lua_pushvalue(L, new_table); lua_pushstring(L, (*i).c_str()); if(lua_pcall(L, 2, 0, 0) != 0) { script_error(L, "error: %s", lua_tostring(L, -1)); } ++i; } return 1; } // get_worldpath() static int l_get_worldpath(lua_State *L) { std::string worldpath = get_server(L)->getWorldPath(); lua_pushstring(L, worldpath.c_str()); return 1; } // sound_play(spec, parameters) static int l_sound_play(lua_State *L) { SimpleSoundSpec spec; read_soundspec(L, 1, spec); ServerSoundParams params; read_server_sound_params(L, 2, params); s32 handle = get_server(L)->playSound(spec, params); lua_pushinteger(L, handle); return 1; } // sound_stop(handle) static int l_sound_stop(lua_State *L) { int handle = luaL_checkinteger(L, 1); get_server(L)->stopSound(handle); return 0; } // is_singleplayer() static int l_is_singleplayer(lua_State *L) { lua_pushboolean(L, get_server(L)->isSingleplayer()); return 1; } // get_password_hash(name, raw_password) static int l_get_password_hash(lua_State *L) { std::string name = luaL_checkstring(L, 1); std::string raw_password = luaL_checkstring(L, 2); std::string hash = translatePassword(name, narrow_to_wide(raw_password)); lua_pushstring(L, hash.c_str()); return 1; } // notify_authentication_modified(name) static int l_notify_authentication_modified(lua_State *L) { std::string name = ""; if(lua_isstring(L, 1)) name = lua_tostring(L, 1); get_server(L)->reportPrivsModified(name); return 0; } // rollback_get_last_node_actor(p, range, seconds) -> actor, p, seconds static int l_rollback_get_last_node_actor(lua_State *L) { v3s16 p = read_v3s16(L, 1); int range = luaL_checknumber(L, 2); int seconds = luaL_checknumber(L, 3); Server *server = get_server(L); IRollbackManager *rollback = server->getRollbackManager(); v3s16 act_p; int act_seconds = 0; std::string actor = rollback->getLastNodeActor(p, range, seconds, &act_p, &act_seconds); lua_pushstring(L, actor.c_str()); push_v3s16(L, act_p); lua_pushnumber(L, act_seconds); return 3; } // rollback_revert_actions_by(actor, seconds) -> bool, log messages static int l_rollback_revert_actions_by(lua_State *L) { std::string actor = luaL_checkstring(L, 1); int seconds = luaL_checknumber(L, 2); Server *server = get_server(L); IRollbackManager *rollback = server->getRollbackManager(); std::list<RollbackAction> actions = rollback->getRevertActions(actor, seconds); std::list<std::string> log; bool success = server->rollbackRevertActions(actions, &log); // Push boolean result lua_pushboolean(L, success); // Get the table insert function and push the log table lua_getglobal(L, "table"); lua_getfield(L, -1, "insert"); int table_insert = lua_gettop(L); lua_newtable(L); int table = lua_gettop(L); for(std::list<std::string>::const_iterator i = log.begin(); i != log.end(); i++) { lua_pushvalue(L, table_insert); lua_pushvalue(L, table); lua_pushstring(L, i->c_str()); if(lua_pcall(L, 2, 0, 0)) script_error(L, "error: %s", lua_tostring(L, -1)); } lua_remove(L, -2); // Remove table lua_remove(L, -2); // Remove insert return 2; } static const struct luaL_Reg minetest_f [] = { {"debug", l_debug}, {"log", l_log}, {"request_shutdown", l_request_shutdown}, {"get_server_status", l_get_server_status}, {"register_item_raw", l_register_item_raw}, {"register_alias_raw", l_register_alias_raw}, {"register_craft", l_register_craft}, {"register_biome", l_register_biome}, {"register_biome_groups", l_register_biome_groups}, {"register_ore", l_register_ore}, {"setting_set", l_setting_set}, {"setting_get", l_setting_get}, {"setting_getbool", l_setting_getbool}, {"setting_save",l_setting_save}, {"chat_send_all", l_chat_send_all}, {"chat_send_player", l_chat_send_player}, {"get_player_privs", l_get_player_privs}, {"get_ban_list", l_get_ban_list}, {"get_ban_description", l_get_ban_description}, {"ban_player", l_ban_player}, {"unban_player_or_ip", l_unban_player_of_ip}, {"get_inventory", l_get_inventory}, {"create_detached_inventory_raw", l_create_detached_inventory_raw}, {"show_formspec", l_show_formspec}, {"get_dig_params", l_get_dig_params}, {"get_hit_params", l_get_hit_params}, {"get_current_modname", l_get_current_modname}, {"get_modpath", l_get_modpath}, {"get_modnames", l_get_modnames}, {"get_worldpath", l_get_worldpath}, {"sound_play", l_sound_play}, {"sound_stop", l_sound_stop}, {"is_singleplayer", l_is_singleplayer}, {"get_password_hash", l_get_password_hash}, {"notify_authentication_modified", l_notify_authentication_modified}, {"get_craft_result", l_get_craft_result}, {"get_craft_recipe", l_get_craft_recipe}, {"get_all_craft_recipes", l_get_all_craft_recipes}, {"rollback_get_last_node_actor", l_rollback_get_last_node_actor}, {"rollback_revert_actions_by", l_rollback_revert_actions_by}, {"add_particle", l_add_particle}, {"add_particlespawner", l_add_particlespawner}, {"delete_particlespawner", l_delete_particlespawner}, {NULL, NULL} }; /* Main export function */ void scriptapi_export(lua_State *L, Server *server) { realitycheck(L); assert(lua_checkstack(L, 20)); verbosestream<<"scriptapi_export()"<<std::endl; StackUnroller stack_unroller(L); // Store server as light userdata in registry lua_pushlightuserdata(L, server); lua_setfield(L, LUA_REGISTRYINDEX, "minetest_server"); // Register global functions in table minetest lua_newtable(L); luaL_register(L, NULL, minetest_f); lua_setglobal(L, "minetest"); // Get the main minetest table lua_getglobal(L, "minetest"); // Add tables to minetest lua_newtable(L); lua_setfield(L, -2, "object_refs"); lua_newtable(L); lua_setfield(L, -2, "luaentities"); // Register wrappers LuaItemStack::Register(L); InvRef::Register(L); NodeMetaRef::Register(L); NodeTimerRef::Register(L); ObjectRef::Register(L); EnvRef::Register(L); LuaPseudoRandom::Register(L); LuaPerlinNoise::Register(L); LuaPerlinNoiseMap::Register(L); }