Add whitelist, remove old IP entries after 14 days

functions.lua

@@ -0,0 +1,112 @@
+function ipnames.command_list(name)
+	local names = ""
+	for k, v in pairs(ipnames.whitelist) do
+		names = names.." "..k
+	end
+	minetest.chat_send_player(name, "All exceptions: "..names)
+end
+
+function ipnames.command_whois(name, param)
+	if not ipnames.data[param] then
+		minetest.chat_send_player(name, "The player '"..param.."' did not join yet.")
+		return
+	end
+	
+	local ip = ipnames.data[param]
+	local names = ""
+	for k, v in pairs(ipnames.data) do
+		if v == ip then
+			names = names.." "..k
+		end
+	end
+	minetest.chat_send_player(name, "Following players share an IP: "..names)
+end
+
+function ipnames.command_ignore(name, param)
+	if not ipnames.data[param] then
+		minetest.chat_send_player(name, "The player '"..param.."' did not join yet.")
+		return
+	end
+	
+	ipnames.whitelist[param] = true
+	minetest.chat_send_player(name, "Added an exception!")
+	ipnames.save_whitelist()
+end
+
+function ipnames.command_unignore(name, param)
+	if not ipnames.whitelist[param] then
+		minetest.chat_send_player(name, "The player '"..param.."' is not on the whitelist.")
+		return
+	end
+	
+	ipnames.whitelist[param] = nil
+	minetest.chat_send_player(name, "Removed an exception!")
+	ipnames.save_whitelist()
+end
+
+function ipnames.load_data()
+	local file = io.open(ipnames.file, "r")
+	if not file then
+		return
+	end
+	local t = os.time()
+	for line in file:lines() do
+		if line ~= "" then
+			local data = line:split("|")
+			if #data >= 2 then
+				-- Special stuff - only save if player has not been deleted yet
+				local ignore = false
+				if not minetest.auth_table[data[1]] then
+					ignore = true
+				end
+				if #data >= 3 and not ignore then
+					-- Remove IP after 2 weeks
+					local cd = tonumber(data[3])
+					if t - cd > (3600 * 24 * 14) then
+						ignore = true
+					end
+				end
+				if not ignore then
+					ipnames.data[data[1]] = data[2]
+				end
+			end
+		end
+	end
+	io.close(file)
+end
+
+function ipnames.save_data()
+	if not ipnames.changes then
+		return
+	end
+	ipnames.changes = false
+	local file = io.open(ipnames.file, "w")
+	for k, v in pairs(ipnames.data) do
+		if v ~= nil then
+			file:write(k.."|"..v.."\n")
+		end
+	end
+	io.close(file)
+end
+
+function ipnames.load_whitelist()
+	local file = io.open(ipnames.whitelist_file, "r")
+	if not file then
+		return
+	end
+	for line in file:lines() do
+		if line ~= "" then
+			ipnames.whitelist[line] = true
+		end
+	end
+end
+
+function ipnames.save_whitelist()
+	local file = io.open(ipnames.whitelist_file, "w")
+	for k, v in pairs(ipnames.whitelist) do
+		if v ~= nil then
+			file:write(k.."\n")
+		end
+	end
+	io.close(file)
+end