Mercurial > prosody-hg

annotate util/uuid.lua @ 11545:7b8a482f4efd 0.11

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MUC: Add support for advertising muc#roomconfig_allowinvites in room disco#info The de-facto interpretation of this (undocumented) option is to indicate to the client whether it is allowed to invite other users to the MUC. This is differs from the existing option in our config form, which only controls the behaviour of sending of invites in a members-only MUC (we always allow invites in open rooms). Conversations is one client known to use this disco#info item to determine whether it may send invites.
author Matthew Wild <mwild1@gmail.com>
date Mon, 10 May 2021 17:01:38 +0100
parents ec17115e3721
children a0ff5c438e9d
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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b1885732e979 GPL->MIT!
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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9 local random = require "util.random";
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10 local random_bytes = random.bytes;
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11 local hex = require "util.hex".to;
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12 local m_ceil = math.ceil;
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14 local function get_nibbles(n)
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15 return hex(random_bytes(m_ceil(n/2))):sub(1, n);
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16 end
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17
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18 local function get_twobits()
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19 return ("%x"):format(random_bytes(1):byte() % 4 + 8);
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20 end
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21
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22 local function generate()
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23 -- generate RFC 4122 complaint UUIDs (version 4 - random)
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24 return get_nibbles(8).."-"..get_nibbles(4).."-4"..get_nibbles(3).."-"..(get_twobits())..get_nibbles(3).."-"..get_nibbles(12);
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25 end
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26
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27 return {
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28 get_nibbles=get_nibbles;
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29 generate = generate ;
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30 -- COMPAT
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31 seed = random.seed;
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32 };