File

util/hex.lua @ 13246:2e04d54fb013

mod_tokenauth: Fix revoking a single token without revoking whole grant This appears to have been a copy-paste of the grant revocation function, or maybe the other way around. Either way, it deleted the whole grant instead of the individual token as might be expected.
author Kim Alvefur <zash@zash.se>
date Sun, 23 Jul 2023 02:54:49 +0200
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;
};