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util/id.lua @ 12520:bb5f772b3189 0.12
util.prosodyctl.check: Remove now redundant unbound config tweak
This is now done in net.unbound itself
Turning it back on in the config may still cause the problem of entries
there masking the DNS values.
author | Kim Alvefur <zash@zash.se> |
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date | Thu, 26 May 2022 13:03:58 +0200 |
parent | 12111:f8d280215633 |
child | 12975:d10957394a3c |
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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 { -- sizes divisible by 3 fit nicely into base64 without padding== -- for short lived things with low risk of collisions tiny = function() return b64url_random(3); end; -- close to 8 bytes, should be good enough for relatively short lived or uses -- scoped by host or users, half the size of an uuid short = function() return b64url_random(9); end; -- more entropy than uuid at 2/3 the size -- should be okay for globally scoped ids or security token medium = function() return b64url_random(18); end; -- as long as an uuid but MOAR entropy long = function() return b64url_random(27); end; -- pick your own adventure custom = function (size) return function () return b64url_random(size); end; end; }