prosody
4db4bd8a7822
util/id.lua

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Software / code / prosody

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util/id.lua @ 10751:4db4bd8a7822

mod_mam: Don't store any groupchat messages The intent was to not store MUC groupchat messages, which are sent from the MUC to local full JIDs, while allowing for potential future account based group chat. However, since this function handles messages in both directions and outgoing MUC messages are sent to the bare room JID, those were stored.
author Kim Alvefur <zash@zash.se>
date Thu, 23 Apr 2020 00:55:34 +0200
parent 8016:9546c629289b
child 12110:b5b799a2a10c
line wrap: on
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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;
}