101 lines
2.7 KiB
Lua
101 lines
2.7 KiB
Lua
--[[
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original code provided by tenplus1
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This mod instigates an effective border for new players joining a server
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with persistence of the last state and visa records across server restarts
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]]
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local mod_data = minetest.get_mod_storage()
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local border = mod_data:get_string("status")
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local visa = mod_data:get_string("visa")
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local duration = minetest.settings:get("border.visa_duration") or 86400 -- 1 day
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local msg = minetest.settings:get("border.msg") or "\nSorry, no new players being admitted at this time!"
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local function update_visa_cache(name)
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-- If name exists in cache remove it
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if visa[name] then
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visa[name] = nil
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collectgarbage()
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else
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-- cache visa
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visa[name] = os.time() + duration
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end
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mod_data:set_string("visa", minetest.serialize(visa))
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end
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if border == "" then
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-- Initialise
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mod_data:set_string("status", "OPEN")
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border = "OPEN"
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end
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if visa == "" then
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-- initialise
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visa = {}
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else
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-- load visa table
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visa = minetest.deserialize(visa)
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-- iterate
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for name,expires in pairs(visa) do
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local t_remains = expires - os.time()
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if t_remains > 0 then
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--set
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minetest.after(t_remains, update_visa_cache, name)
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else
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-- remove
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update_visa_cache(name)
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end
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end
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end
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-- announce status
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minetest.after(5, function()
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minetest.chat_send_all("[border:info] border is "..border)
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end)
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-- chat command to toggle the border status
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minetest.register_chatcommand("border", {
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params = "",
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description = "Toggles if new players are allowed",
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privs = {server = true},
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func = function (name, param)
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if border == "CLOSED" then
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border = "OPEN"
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minetest.chat_send_player(name, "[border:info] allowing new players.")
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else
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border = "CLOSED"
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minetest.chat_send_player(name, "[border:info] refusing new players.")
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end
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mod_data:set_string("status", border) -- save current state
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end
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})
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-- add visa
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minetest.register_chatcommand("visa", {
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params = "player",
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description = "Adds a temporary visa allowing a new player to create an account",
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privs = {server = true},
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func = function (name, param)
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if not param then
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minetest.chat_send_player(name, "Use: /visa <name>")
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end
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update_visa_cache(param)
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minetest.after(duration, update_visa_cache, param)
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minetest.chat_send_player(name, "A visa was issued to "..param)
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end
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})
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-- register callback
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minetest.register_on_prejoinplayer(function(name, ip)
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-- owner exception
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if minetest.setting_get("name") == name then
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return
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end
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-- stop NEW players from joining unless they have a visa
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local player_exists = minetest.get_auth_handler().get_auth(name)
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if border == "CLOSED" and not player_exists and not visa[name] then
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return msg
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end
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if visa[name] then update_visa_cache(name) end -- remove visa
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end
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)
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