libox/init.lua at master · TheEt1234/libox · GitHub

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local ie = minetest.request_insecure_environment()
if ie == nil and (debug.getupvalue == nil and debug.getlocal == nil) then
	minetest.log(
		"warning",
		[[
====Hello, this message is for server owners====
Libox needs to be a trusted mod for weighing of coroutine sandboxes to work properly.
If it isn't, coroutine sandboxes could fill up your server's memory with local variables and upvalues.

Libox can re-use debug.getlocal and debug.getupvalue if it is already avaliable in the environment
When adding libox to secure.trusted_mods, be aware that it will expose debug.getlocal and debug.getupvalue
================================================
]]
	)
elseif debug.getlocal == nil or debug.getupvalue == nil and ie ~= nil then
	-- luacheck:ignore
	debug.getlocal = ie.debug.getlocal
	debug.getupvalue = ie.debug.getupvalue
end

if ie and jit then
	local MP = core.get_modpath("libox")
	local lib
	if jit.os == "Windows" then
		lib = MP .. "/autohook/libautohook.dll"
	else -- Linux/Unix-like
		lib = MP .. "/autohook/libautohook.so"
	end
	-- Use package.loadlib() instad of require() to prevent using
	-- system/other apps' libraries with the same name
	local load_func = ie.package.loadlib(lib, "luaopen_autohook")
	if load_func then
		local errmsg
		libox_autohook_module, errmsg = load_func()
		while true do
			if not libox_autohook_module or errmsg then
				core.log(
					"error",
					("[libox] Autohook feature NOT available. Failed loading autohook C module %s:\n%s"):format(
						lib,
						errmsg
					)
				)
				libox_autohook_module = nil
				break
			end

			local version_file = io.open(MP .. "/autohook/module-version.txt")
			local module_version = libox_autohook_module.version
			if not version_file or not module_version then
				core.log("error", "[libox] Autohook feature NOT available, could not verify its C module compatibility")
				libox_autohook_module = nil
				break
			end
			local current_version = version_file:read("*l")
			version_file:close()

			local module_version, jit_version = module_version()
			if current_version ~= module_version then
				core.log(
					"error",
					"[libox] Autohook feature NOT available, its C module version is incompatible\n"
						.. ("current: %s | available: %s"):format(current_version, module_version)
				)
				libox_autohook_module = nil
				break
			end

			if jit_version ~= jit.version then
				core.log(
					"error",
					"[libox] Autohook feature NOT available, its compiled against a different LuaJIT version than Luanti\n"
						.. ("Luanti: %s | autohook: %s"):format(jit.version, jit_version)
				)
				libox_autohook_module = nil
			end

			core.log("info", "[libox] Autohook feature available")
			break
		end
	end
else
	core.log("info", "[libox] Autohook feature NOT available")
end

local MP = minetest.get_modpath(minetest.get_current_modname())
dofile(MP .. "/main.lua")

-- Files that are executed sync only, coroutine.lua and *.test.lua
dofile(MP .. "/coroutine.lua")

libox_autohook_module = nil

-- async files
minetest.register_async_dofile(MP .. "/main.lua")

local test = MP .. "/test"
dofile(test .. "/basic_testing.lua")
dofile(test .. "/coroutine.test.lua")
dofile(test .. "/normal.test.lua")