File

util/hex.lua @ 12731:a314f5bff9f0

mod_muc: Better map restrict_room_creation to role permissions (behaviour change) With this change and 427dd01f0864, room creation is now effectively restricted to parent-host users by default. This is a better default than previous Prosody versions (where room creation was not restricted). The "local" option for restrict_room_creation is no longer used (any value other than true/false won't change the default behaviour). restrict_room_creation = true will grant prosody:admin the ability to create rooms. restrict_room_creation = false disables all permission checks. Anything between these two can be achieved using custom roles and permissions.
author Matthew Wild <mwild1@gmail.com>
date Thu, 29 Sep 2022 12:30:52 +0100
parent 12355:a0ff5c438e9d
line wrap: on
line source

local s_char = string.char;
local s_format = string.format;
local s_gsub = string.gsub;
local s_lower = string.lower;

local char_to_hex = {};
local hex_to_char = {};

do
	local char, hex;
	for i = 0,255 do
		char, hex = s_char(i), s_format("%02x", i);
		char_to_hex[char] = hex;
		hex_to_char[hex] = char;
	end
end

local function to(s)
	return (s_gsub(s, ".", char_to_hex));
end

local function from(s)
	return (s_gsub(s_lower(s), "%X*(%x%x)%X*", hex_to_char));
end

return {
	encode = to, decode = from;
	-- COMPAT w/pre-0.12:
	to = to, from = from;
};