Software /
code /
prosody
File
util/uuid.lua @ 9793:9993fd021d19
mod_http: Solve CORS problems once and for all
This blindly allows any cross-site requests.
Future work should add an API to allow each HTTP app some influence over
this for each HTTP path
author | Kim Alvefur <zash@zash.se> |
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date | Thu, 04 Oct 2018 12:22:12 +0200 |
parent | 7078:ec17115e3721 |
child | 12355:a0ff5c438e9d |
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-- 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; };