prosody
7ff3699c1653
util/uuid.lua

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Software / code / prosody

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util/uuid.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 7078:ec17115e3721
child 12355:a0ff5c438e9d
line wrap: on
line source

-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

local random = require "util.random";
local random_bytes = random.bytes;
local hex = require "util.hex".to;
local m_ceil = math.ceil;

local function get_nibbles(n)
	return hex(random_bytes(m_ceil(n/2))):sub(1, n);
end

local function get_twobits()
	return ("%x"):format(random_bytes(1):byte() % 4 + 8);
end

local function generate()
	-- generate RFC 4122 complaint UUIDs (version 4 - random)
	return get_nibbles(8).."-"..get_nibbles(4).."-4"..get_nibbles(3).."-"..(get_twobits())..get_nibbles(3).."-"..get_nibbles(12);
end

return {
	get_nibbles=get_nibbles;
	generate = generate ;
	-- COMPAT
	seed = random.seed;
};