mirror of
https://github.com/minetest/minetest.git
synced 2024-09-21 16:00:47 +03:00
31e0667a4a
This allows mods to perform both asynchronous and synchronous HTTP requests. Mods are only granted access to HTTP APIs if either mod security is disabled or if they are whitelisted in any of the the secure.http_mods and secure.trusted_mods settings. Adds httpfetch_caller_alloc_secure to generate random, non-predictable caller IDs so that lua mods cannot spy on each others HTTP queries.
649 lines
14 KiB
C++
649 lines
14 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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extern "C" {
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#include "lua.h"
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#include "lauxlib.h"
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}
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#include "util/numeric.h"
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#include "util/string.h"
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#include "common/c_converter.h"
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#include "constants.h"
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#define CHECK_TYPE(index, name, type) do { \
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int t = lua_type(L, (index)); \
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if (t != (type)) { \
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throw LuaError(std::string("Invalid ") + (name) + \
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" (expected " + lua_typename(L, (type)) + \
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" got " + lua_typename(L, t) + ")."); \
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} \
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} while(0)
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#define CHECK_POS_COORD(name) CHECK_TYPE(-1, "position coordinate '" name "'", LUA_TNUMBER)
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#define CHECK_POS_TAB(index) CHECK_TYPE(index, "position", LUA_TTABLE)
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void push_v3f(lua_State *L, v3f p)
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{
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lua_newtable(L);
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lua_pushnumber(L, p.X);
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lua_setfield(L, -2, "x");
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lua_pushnumber(L, p.Y);
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lua_setfield(L, -2, "y");
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lua_pushnumber(L, p.Z);
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lua_setfield(L, -2, "z");
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}
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void push_v2f(lua_State *L, v2f p)
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{
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lua_newtable(L);
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lua_pushnumber(L, p.X);
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lua_setfield(L, -2, "x");
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lua_pushnumber(L, p.Y);
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lua_setfield(L, -2, "y");
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}
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v2s16 read_v2s16(lua_State *L, int index)
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{
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v2s16 p;
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CHECK_POS_TAB(index);
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lua_getfield(L, index, "x");
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p.X = lua_tonumber(L, -1);
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lua_pop(L, 1);
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lua_getfield(L, index, "y");
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p.Y = lua_tonumber(L, -1);
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lua_pop(L, 1);
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return p;
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}
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v2s16 check_v2s16(lua_State *L, int index)
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{
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v2s16 p;
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CHECK_POS_TAB(index);
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lua_getfield(L, index, "x");
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CHECK_POS_COORD("x");
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p.X = lua_tonumber(L, -1);
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lua_pop(L, 1);
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lua_getfield(L, index, "y");
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CHECK_POS_COORD("y");
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p.Y = lua_tonumber(L, -1);
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lua_pop(L, 1);
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return p;
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}
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void push_v2s16(lua_State *L, v2s16 p)
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{
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lua_newtable(L);
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lua_pushnumber(L, p.X);
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lua_setfield(L, -2, "x");
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lua_pushnumber(L, p.Y);
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lua_setfield(L, -2, "y");
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}
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void push_v2s32(lua_State *L, v2s32 p)
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{
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lua_newtable(L);
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lua_pushnumber(L, p.X);
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lua_setfield(L, -2, "x");
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lua_pushnumber(L, p.Y);
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lua_setfield(L, -2, "y");
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}
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v2s32 read_v2s32(lua_State *L, int index)
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{
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v2s32 p;
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CHECK_POS_TAB(index);
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lua_getfield(L, index, "x");
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p.X = lua_tonumber(L, -1);
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lua_pop(L, 1);
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lua_getfield(L, index, "y");
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p.Y = lua_tonumber(L, -1);
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lua_pop(L, 1);
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return p;
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}
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v2f read_v2f(lua_State *L, int index)
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{
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v2f p;
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CHECK_POS_TAB(index);
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lua_getfield(L, index, "x");
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p.X = lua_tonumber(L, -1);
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lua_pop(L, 1);
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lua_getfield(L, index, "y");
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p.Y = lua_tonumber(L, -1);
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lua_pop(L, 1);
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return p;
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}
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v2f check_v2f(lua_State *L, int index)
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{
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v2f p;
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CHECK_POS_TAB(index);
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lua_getfield(L, index, "x");
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CHECK_POS_COORD("x");
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p.X = lua_tonumber(L, -1);
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lua_pop(L, 1);
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lua_getfield(L, index, "y");
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CHECK_POS_COORD("y");
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p.Y = lua_tonumber(L, -1);
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lua_pop(L, 1);
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return p;
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}
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v3f read_v3f(lua_State *L, int index)
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{
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v3f pos;
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CHECK_POS_TAB(index);
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lua_getfield(L, index, "x");
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pos.X = lua_tonumber(L, -1);
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lua_pop(L, 1);
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lua_getfield(L, index, "y");
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pos.Y = lua_tonumber(L, -1);
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lua_pop(L, 1);
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lua_getfield(L, index, "z");
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pos.Z = lua_tonumber(L, -1);
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lua_pop(L, 1);
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return pos;
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}
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v3f check_v3f(lua_State *L, int index)
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{
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v3f pos;
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CHECK_POS_TAB(index);
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lua_getfield(L, index, "x");
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CHECK_POS_COORD("x");
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pos.X = lua_tonumber(L, -1);
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lua_pop(L, 1);
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lua_getfield(L, index, "y");
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CHECK_POS_COORD("y");
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pos.Y = lua_tonumber(L, -1);
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lua_pop(L, 1);
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lua_getfield(L, index, "z");
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CHECK_POS_COORD("z");
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pos.Z = lua_tonumber(L, -1);
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lua_pop(L, 1);
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return pos;
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}
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void push_ARGB8(lua_State *L, video::SColor color)
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{
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lua_newtable(L);
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lua_pushnumber(L, color.getAlpha());
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lua_setfield(L, -2, "a");
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lua_pushnumber(L, color.getRed());
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lua_setfield(L, -2, "r");
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lua_pushnumber(L, color.getGreen());
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lua_setfield(L, -2, "g");
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lua_pushnumber(L, color.getBlue());
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lua_setfield(L, -2, "b");
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}
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void pushFloatPos(lua_State *L, v3f p)
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{
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p /= BS;
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push_v3f(L, p);
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}
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v3f checkFloatPos(lua_State *L, int index)
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{
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return check_v3f(L, index) * BS;
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}
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void push_v3s16(lua_State *L, v3s16 p)
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{
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lua_newtable(L);
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lua_pushnumber(L, p.X);
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lua_setfield(L, -2, "x");
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lua_pushnumber(L, p.Y);
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lua_setfield(L, -2, "y");
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lua_pushnumber(L, p.Z);
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lua_setfield(L, -2, "z");
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}
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v3s16 read_v3s16(lua_State *L, int index)
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{
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// Correct rounding at <0
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v3f pf = read_v3f(L, index);
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return floatToInt(pf, 1.0);
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}
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v3s16 check_v3s16(lua_State *L, int index)
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{
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// Correct rounding at <0
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v3f pf = check_v3f(L, index);
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return floatToInt(pf, 1.0);
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}
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bool read_color(lua_State *L, int index, video::SColor *color)
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{
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if (lua_istable(L, index)) {
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*color = read_ARGB8(L, index);
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} else if (lua_isnumber(L, index)) {
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color->set(lua_tonumber(L, index));
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} else if (lua_isstring(L, index)) {
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video::SColor parsed_color;
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if (!parseColorString(lua_tostring(L, index), parsed_color, true))
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return false;
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*color = parsed_color;
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} else {
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return false;
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}
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return true;
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}
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video::SColor read_ARGB8(lua_State *L, int index)
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{
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video::SColor color(0);
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CHECK_TYPE(index, "ARGB color", LUA_TTABLE);
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lua_getfield(L, index, "a");
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color.setAlpha(lua_isnumber(L, -1) ? lua_tonumber(L, -1) : 0xFF);
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lua_pop(L, 1);
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lua_getfield(L, index, "r");
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color.setRed(lua_tonumber(L, -1));
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lua_pop(L, 1);
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lua_getfield(L, index, "g");
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color.setGreen(lua_tonumber(L, -1));
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lua_pop(L, 1);
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lua_getfield(L, index, "b");
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color.setBlue(lua_tonumber(L, -1));
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lua_pop(L, 1);
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return color;
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}
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aabb3f read_aabb3f(lua_State *L, int index, f32 scale)
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{
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aabb3f box;
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if(lua_istable(L, index)){
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lua_rawgeti(L, index, 1);
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box.MinEdge.X = lua_tonumber(L, -1) * scale;
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lua_pop(L, 1);
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lua_rawgeti(L, index, 2);
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box.MinEdge.Y = lua_tonumber(L, -1) * scale;
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lua_pop(L, 1);
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lua_rawgeti(L, index, 3);
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box.MinEdge.Z = lua_tonumber(L, -1) * scale;
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lua_pop(L, 1);
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lua_rawgeti(L, index, 4);
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box.MaxEdge.X = lua_tonumber(L, -1) * scale;
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lua_pop(L, 1);
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lua_rawgeti(L, index, 5);
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box.MaxEdge.Y = lua_tonumber(L, -1) * scale;
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lua_pop(L, 1);
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lua_rawgeti(L, index, 6);
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box.MaxEdge.Z = lua_tonumber(L, -1) * scale;
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lua_pop(L, 1);
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}
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return box;
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}
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void push_aabb3f(lua_State *L, aabb3f box)
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{
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lua_newtable(L);
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lua_pushnumber(L, box.MinEdge.X);
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lua_rawseti(L, -2, 1);
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lua_pushnumber(L, box.MinEdge.Y);
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lua_rawseti(L, -2, 2);
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lua_pushnumber(L, box.MinEdge.Z);
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lua_rawseti(L, -2, 3);
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lua_pushnumber(L, box.MaxEdge.X);
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lua_rawseti(L, -2, 4);
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lua_pushnumber(L, box.MaxEdge.Y);
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lua_rawseti(L, -2, 5);
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lua_pushnumber(L, box.MaxEdge.Z);
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lua_rawseti(L, -2, 6);
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}
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std::vector<aabb3f> read_aabb3f_vector(lua_State *L, int index, f32 scale)
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{
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std::vector<aabb3f> boxes;
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if(lua_istable(L, index)){
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int n = lua_objlen(L, index);
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// Check if it's a single box or a list of boxes
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bool possibly_single_box = (n == 6);
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for(int i = 1; i <= n && possibly_single_box; i++){
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lua_rawgeti(L, index, i);
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if(!lua_isnumber(L, -1))
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possibly_single_box = false;
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lua_pop(L, 1);
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}
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if(possibly_single_box){
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// Read a single box
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boxes.push_back(read_aabb3f(L, index, scale));
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} else {
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// Read a list of boxes
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for(int i = 1; i <= n; i++){
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lua_rawgeti(L, index, i);
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boxes.push_back(read_aabb3f(L, -1, scale));
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lua_pop(L, 1);
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}
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}
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}
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return boxes;
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}
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size_t read_stringlist(lua_State *L, int index, std::vector<std::string> *result)
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{
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if (index < 0)
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index = lua_gettop(L) + 1 + index;
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size_t num_strings = 0;
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if (lua_istable(L, index)) {
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lua_pushnil(L);
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while (lua_next(L, index)) {
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if (lua_isstring(L, -1)) {
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result->push_back(lua_tostring(L, -1));
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num_strings++;
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}
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lua_pop(L, 1);
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}
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} else if (lua_isstring(L, index)) {
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result->push_back(lua_tostring(L, index));
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num_strings++;
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}
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return num_strings;
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}
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/*
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Table field getters
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*/
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bool getstringfield(lua_State *L, int table,
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const char *fieldname, std::string &result)
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{
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lua_getfield(L, table, fieldname);
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bool got = false;
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if(lua_isstring(L, -1)){
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size_t len = 0;
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const char *ptr = lua_tolstring(L, -1, &len);
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if (ptr) {
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result.assign(ptr, len);
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got = true;
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}
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}
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lua_pop(L, 1);
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return got;
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}
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bool getintfield(lua_State *L, int table,
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const char *fieldname, int &result)
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{
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lua_getfield(L, table, fieldname);
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bool got = false;
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if(lua_isnumber(L, -1)){
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result = lua_tonumber(L, -1);
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got = true;
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}
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lua_pop(L, 1);
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return got;
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}
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bool getintfield(lua_State *L, int table,
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const char *fieldname, u8 &result)
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{
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lua_getfield(L, table, fieldname);
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bool got = false;
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if(lua_isnumber(L, -1)){
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result = lua_tonumber(L, -1);
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got = true;
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}
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lua_pop(L, 1);
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return got;
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}
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bool getintfield(lua_State *L, int table,
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const char *fieldname, u16 &result)
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{
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lua_getfield(L, table, fieldname);
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bool got = false;
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if(lua_isnumber(L, -1)){
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result = lua_tonumber(L, -1);
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got = true;
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}
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lua_pop(L, 1);
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return got;
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}
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bool getintfield(lua_State *L, int table,
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const char *fieldname, u32 &result)
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{
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lua_getfield(L, table, fieldname);
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bool got = false;
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if(lua_isnumber(L, -1)){
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result = lua_tonumber(L, -1);
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got = true;
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}
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lua_pop(L, 1);
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return got;
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}
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bool getfloatfield(lua_State *L, int table,
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const char *fieldname, float &result)
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{
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lua_getfield(L, table, fieldname);
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bool got = false;
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if(lua_isnumber(L, -1)){
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result = lua_tonumber(L, -1);
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got = true;
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}
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lua_pop(L, 1);
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return got;
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}
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bool getboolfield(lua_State *L, int table,
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const char *fieldname, bool &result)
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{
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lua_getfield(L, table, fieldname);
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bool got = false;
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if(lua_isboolean(L, -1)){
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result = lua_toboolean(L, -1);
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got = true;
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}
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lua_pop(L, 1);
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return got;
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}
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size_t getstringlistfield(lua_State *L, int table, const char *fieldname,
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std::vector<std::string> *result)
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{
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lua_getfield(L, table, fieldname);
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size_t num_strings_read = read_stringlist(L, -1, result);
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lua_pop(L, 1);
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return num_strings_read;
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}
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std::string checkstringfield(lua_State *L, int table,
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const char *fieldname)
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{
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lua_getfield(L, table, fieldname);
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CHECK_TYPE(-1, std::string("field \"") + fieldname + '"', LUA_TSTRING);
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size_t len;
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const char *s = lua_tolstring(L, -1, &len);
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lua_pop(L, 1);
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return std::string(s, len);
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}
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std::string getstringfield_default(lua_State *L, int table,
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const char *fieldname, const std::string &default_)
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{
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std::string result = default_;
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getstringfield(L, table, fieldname, result);
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return result;
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}
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int getintfield_default(lua_State *L, int table,
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const char *fieldname, int default_)
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{
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int result = default_;
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|
getintfield(L, table, fieldname, result);
|
|
return result;
|
|
}
|
|
|
|
float getfloatfield_default(lua_State *L, int table,
|
|
const char *fieldname, float default_)
|
|
{
|
|
float result = default_;
|
|
getfloatfield(L, table, fieldname, result);
|
|
return result;
|
|
}
|
|
|
|
bool getboolfield_default(lua_State *L, int table,
|
|
const char *fieldname, bool default_)
|
|
{
|
|
bool result = default_;
|
|
getboolfield(L, table, fieldname, result);
|
|
return result;
|
|
}
|
|
|
|
void setstringfield(lua_State *L, int table,
|
|
const char *fieldname, const char *value)
|
|
{
|
|
lua_pushstring(L, value);
|
|
if(table < 0)
|
|
table -= 1;
|
|
lua_setfield(L, table, fieldname);
|
|
}
|
|
|
|
void setintfield(lua_State *L, int table,
|
|
const char *fieldname, int value)
|
|
{
|
|
lua_pushinteger(L, value);
|
|
if(table < 0)
|
|
table -= 1;
|
|
lua_setfield(L, table, fieldname);
|
|
}
|
|
|
|
void setfloatfield(lua_State *L, int table,
|
|
const char *fieldname, float value)
|
|
{
|
|
lua_pushnumber(L, value);
|
|
if(table < 0)
|
|
table -= 1;
|
|
lua_setfield(L, table, fieldname);
|
|
}
|
|
|
|
void setboolfield(lua_State *L, int table,
|
|
const char *fieldname, bool value)
|
|
{
|
|
lua_pushboolean(L, value);
|
|
if(table < 0)
|
|
table -= 1;
|
|
lua_setfield(L, table, fieldname);
|
|
}
|
|
|
|
|
|
////
|
|
//// Array table slices
|
|
////
|
|
|
|
size_t write_array_slice_float(
|
|
lua_State *L,
|
|
int table_index,
|
|
float *data,
|
|
v3u16 data_size,
|
|
v3u16 slice_offset,
|
|
v3u16 slice_size)
|
|
{
|
|
v3u16 pmin, pmax(data_size);
|
|
|
|
if (slice_offset.X > 0) {
|
|
slice_offset.X--;
|
|
pmin.X = slice_offset.X;
|
|
pmax.X = MYMIN(slice_offset.X + slice_size.X, data_size.X);
|
|
}
|
|
|
|
if (slice_offset.Y > 0) {
|
|
slice_offset.Y--;
|
|
pmin.Y = slice_offset.Y;
|
|
pmax.Y = MYMIN(slice_offset.Y + slice_size.Y, data_size.Y);
|
|
}
|
|
|
|
if (slice_offset.Z > 0) {
|
|
slice_offset.Z--;
|
|
pmin.Z = slice_offset.Z;
|
|
pmax.Z = MYMIN(slice_offset.Z + slice_size.Z, data_size.Z);
|
|
}
|
|
|
|
const u32 ystride = data_size.X;
|
|
const u32 zstride = data_size.X * data_size.Y;
|
|
|
|
u32 elem_index = 1;
|
|
for (u32 z = pmin.Z; z != pmax.Z; z++)
|
|
for (u32 y = pmin.Y; y != pmax.Y; y++)
|
|
for (u32 x = pmin.X; x != pmax.X; x++) {
|
|
u32 i = z * zstride + y * ystride + x;
|
|
lua_pushnumber(L, data[i]);
|
|
lua_rawseti(L, table_index, elem_index);
|
|
elem_index++;
|
|
}
|
|
|
|
return elem_index - 1;
|
|
}
|
|
|
|
|
|
size_t write_array_slice_u16(
|
|
lua_State *L,
|
|
int table_index,
|
|
u16 *data,
|
|
v3u16 data_size,
|
|
v3u16 slice_offset,
|
|
v3u16 slice_size)
|
|
{
|
|
v3u16 pmin, pmax(data_size);
|
|
|
|
if (slice_offset.X > 0) {
|
|
slice_offset.X--;
|
|
pmin.X = slice_offset.X;
|
|
pmax.X = MYMIN(slice_offset.X + slice_size.X, data_size.X);
|
|
}
|
|
|
|
if (slice_offset.Y > 0) {
|
|
slice_offset.Y--;
|
|
pmin.Y = slice_offset.Y;
|
|
pmax.Y = MYMIN(slice_offset.Y + slice_size.Y, data_size.Y);
|
|
}
|
|
|
|
if (slice_offset.Z > 0) {
|
|
slice_offset.Z--;
|
|
pmin.Z = slice_offset.Z;
|
|
pmax.Z = MYMIN(slice_offset.Z + slice_size.Z, data_size.Z);
|
|
}
|
|
|
|
const u32 ystride = data_size.X;
|
|
const u32 zstride = data_size.X * data_size.Y;
|
|
|
|
u32 elem_index = 1;
|
|
for (u32 z = pmin.Z; z != pmax.Z; z++)
|
|
for (u32 y = pmin.Y; y != pmax.Y; y++)
|
|
for (u32 x = pmin.X; x != pmax.X; x++) {
|
|
u32 i = z * zstride + y * ystride + x;
|
|
lua_pushinteger(L, data[i]);
|
|
lua_rawseti(L, table_index, elem_index);
|
|
elem_index++;
|
|
}
|
|
|
|
return elem_index - 1;
|
|
}
|