Software /
code /
prosody
File
util/id.lua @ 12158:7ff3699c1653
util.prosodyctl.check: Move word to ease future translations
Recent experience with translations in the context of Snikket
highlighted that sentences spread across concatenated strings like this
makes the experience less than pleasant for translators.
We don't have translation yet, but it is a future goal and why not?
The duplication can be solved with a parameterized function for the
common cases.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sat, 08 Jan 2022 17:01:10 +0100 |
parent | 12111:f8d280215633 |
child | 12975:d10957394a3c |
line wrap: on
line source
-- 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; }