prosody
e080d6aa0b3b
util/id.lua

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Software / code / prosody

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util/id.lua @ 11857:e080d6aa0b3b

mod_http_file_share: Allow 'Authorization' header via CORS (thanks kawaii) Can't find anything saying anything on whether this is needed or not. kawaii reported that both Chrome and Firefox complained unless the header was added to the list of allowed headers.
author Kim Alvefur <zash@zash.se>
date Wed, 20 Oct 2021 23:06:07 +0200
parent 8016:9546c629289b
child 12110:b5b799a2a10c
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-- Prosody IM
-- Copyright (C) 2008-2017 Matthew Wild
-- Copyright (C) 2008-2017 Waqas Hussain
-- Copyright (C) 2008-2017 Kim Alvefur
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

local s_gsub = string.gsub;
local random_bytes = require "util.random".bytes;
local base64_encode = require "util.encodings".base64.encode;

local b64url = { ["+"] = "-", ["/"] = "_", ["="] = "" };
local function b64url_random(len)
	return (s_gsub(base64_encode(random_bytes(len)), "[+/=]", b64url));
end

return {
	short =  function () return b64url_random(6); end;
	medium = function () return b64url_random(12); end;
	long =   function () return b64url_random(24); end;
	custom = function (size)
		return function () return b64url_random(size); end;
	end;
}