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fix(lua): log not supported lua functions (#1722)

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This commit is contained in:
Quentin 2023-07-15 22:07:10 +02:00 committed by GitHub
parent a193679445
commit a40b4a0dd8
1 changed files with 24 additions and 12 deletions
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36
src/lua/lua_module.cpp
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@ -2,6 +2,7 @@
#include "bindings/command.hpp"
#include "bindings/event.hpp"
#include "bindings/global_table.hpp"
#include "bindings/globals.hpp"
#include "bindings/gui.hpp"
#include "bindings/locals.hpp"
@ -12,7 +13,6 @@
#include "bindings/script.hpp"
#include "bindings/tunables.hpp"
#include "bindings/vector.hpp"
#include "bindings/global_table.hpp"
#include "file_manager.hpp"
#include "script_mgr.hpp"
@ -52,6 +52,7 @@ namespace big
auto& state = *m_state;
// clang-format off
state.open_libraries(
sol::lib::base,
sol::lib::package,
@ -63,6 +64,7 @@ namespace big
sol::lib::bit32,
sol::lib::utf8
);
// clang-format on
init_lua_api();
@ -140,33 +142,43 @@ namespace big
const auto& os = state["os"];
sol::table sandbox_os(state, sol::create);
sandbox_os["clock"] = os["clock"];
sandbox_os["date"] = os["date"];
sandbox_os["difftime"] = os["difftime"];
sandbox_os["time"] = os["time"];
sandbox_os["clock"] = os["clock"];
sandbox_os["date"] = os["date"];
sandbox_os["difftime"] = os["difftime"];
sandbox_os["time"] = os["time"];
state["os"] = sandbox_os;
}
template<size_t N>
static constexpr auto not_supported_lua_function(const char (&function_name)[N])
{
return [function_name](sol::this_state current_state, sol::variadic_args args) {
const auto module = sol::state_view(current_state)["!this"].get<big::lua_module*>();
LOG(FATAL) << module->module_name() << " tried calling a currently not supported lua function: " << function_name;
};
}
void lua_module::sandbox_lua_loads()
{
auto& state = *m_state;
// That's from lua base lib, luaB
state.set_function("load", nullptr);
state.set_function("loadstring", nullptr);
state.set_function("loadfile", nullptr);
state.set_function("dofile", nullptr);
state["load"] = not_supported_lua_function("load");
state["loadstring"] = not_supported_lua_function("loadstring");
state["loadfile"] = not_supported_lua_function("loadfile");
state["dofile"] = not_supported_lua_function("dofile");
// That's from lua package lib.
// We only allow dependencies between .lua files, no DLLs.
state["package"]["loadlib"] = nullptr;
state["package"]["loadlib"] = not_supported_lua_function("package.loadlib");
state["package"]["cpath"] = "";
// 1 2 3 4
// {searcher_preload, searcher_Lua, searcher_C, searcher_Croot, NULL};
state["package"]["searchers"][3] = nullptr;
state["package"]["searchers"][4] = nullptr;
state["package"]["searchers"][3] = not_supported_lua_function("package.searcher C");
state["package"]["searchers"][4] = not_supported_lua_function("package.searcher Croot");
set_folder_for_lua_require();
}