minetest-mod-governing/init.lua

-- mod governor by mckaygerhard
-- Copyright 2020

----------------------------------------------------------------------------
-- this program can be used free but cannot be used commertially or 
-- modified for, licenced CC-BY-SA-NC 4.0

-- 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.

----------------------------------------------------------------------------

local modname = "governing"
local modpath = minetest.get_modpath("governing")
local modstor = minetest.get_mod_storage()
local worlddir = minetest.get_worldpath()
local modmail = minetest.get_modpath("mail")
local modgeoip = minetest.get_modpath("geoip")
local moddefault = minetest.get_modpath("default")
local modkillme = minetest.get_modpath("killme")
local modcommand = minetest.get_modpath("game_commands")
local modcreative = minetest.get_modpath("creative")
local checkapikey = minetest.settings:get("governing.checkapikey") or ""

local is_46 = minetest.has_feature("add_entity_with_staticdata") -- detect minetest engine 4.0.16 or mayor
local is_50 = minetest.has_feature("object_use_texture_alpha") -- detect mineitest engine more modern than 5.0.0
local is_53 = minetest.has_feature("object_step_has_moveresult") -- detect mineitest engine more modern than 5.3.1
local is_54 = minetest.has_feature("direct_velocity_on_players") -- detect mineitest engine more modern than 5.4.0

local httpapi = minetest.request_http_api and minetest.request_http_api() -- Only works at init time and must be called from the mod's main scope (not from a function).

local S

if minetest.get_translator ~= nil then
	S = minetest.get_translator(modname) -- 5.x translation function
else
	if minetest.get_modpath("intllib") then
		dofile(minetest.get_modpath("intllib") .. "/init.lua")
		if intllib.make_gettext_pair then
			gettext, ngettext = intllib.make_gettext_pair() -- new gettext method
		else
			gettext = intllib.Getter() -- old text file method
		end
		S = gettext
	else -- boilerplate function
		S = function(str, ...)
			local args = {...}
			return str:gsub("@%d+", function(match)
					return args[tonumber(match:sub(2))]
				end)
			end
	end
end

local creative_mode_cache = minetest.settings:get_bool("creative_mode")

governing = {}

governing.is_46 = is_46
governing.is_50 = is_50
governing.is_53 = is_53
governing.is_54 = is_54

governing.S = S

governing.httpapi = httpapi -- must be called early at the beggining to work
governing.modname = modname -- name of the mod
governing.modpath = modpath -- path of the mod
governing.modstor = modstor -- request of storage for the mod
governing.worlddir = worlddir -- path of the world were the mod is running
governing.modgeoip = modgeoip -- path of the geoip mod if available for sending messages internaly on private
governing.modmail = modmail -- path of the mail mod if available for sending messages internaly on private
governing.moddefault = moddefault -- path of default mod if availalbe
governing.modkillme = modkillme -- if killme is present as mod if available
governing.modcommand = modcommand -- if same killme and commands is present as mod if available
governing.checkapikey = checkapikey -- need for geoip improved ip information, then geoip normal will be used

function governing.is_creative(name)
	if creative then
		return creative.is_creative(name)
	else
		return minetest.check_player_privs(name, {creative = true}) or creative_mode_cache
	end
end

minetest.register_privilege("governing", {
	description = "can do geoip lookups on players for governing",
	give_to_singleplayer = false
})

if not governing.modgeoip then
	minetest.register_privilege("geoip", {
		description = "governing: ip checks + lookups on players",
		give_to_singleplayer = false
	})
end

function governing.lookup(ip, callback)
	if not httpapi then
		minetest.log("error", "[governing/geoip] mod not in the trusted http mods!")
		return
	end
	httpapi.fetch( {
			url = "https://tools.keycdn.com/geo.json?host=" .. ip,
			extra_headers = { "User-Agent: keycdn-tools:https://minetest.org" },
			timeout = 5,
		}, function(res)
			if res.code == 200 then
				local data = minetest.parse_json(res.data)
				callback(data)
			else
				minetest.log("warning", "[governing/geoip] http request returned status: " .. res.code)
			end
		end)
end

function governing.checkip(ip, callback)
	if not httpapi then
		minetest.log("error", "[governing] mod not in the trusted http mods!")
		return
	end
	httpapi.fetch( {
			url = "https://vpnapi.io/api/" .. ip .. "?key==" .. governing.checkapikey,
			extra_headers = { "User-Agent: VenenuX-minenux:https://git.minetest.io/minenux" },
			timeout = 5,
		}, function(res)
			if res.code == 200 then
				local data = minetest.parse_json(res.data)
				callback(data)
			else
				minetest.log("warning", "[governing/ip] http request returned status: " .. res.code)
			end
		end)
end

dofile(governing.modpath.."/geoip.lua")
dofile(governing.modpath.."/commands.lua")

if governing.checkapikey == "" then minetest.log("warning", "[goberning] governing.checkapikey not set or empty") end

print("[MOD] governing mod loaded" )