prosody
c434bff22b14
util/uuid.lua

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util/uuid.lua @ 10303:c434bff22b14

mod_csi_simple: Always remove session filters when disabling CSI Only guard the actual pausing of outgoing data on the method existing. This prevents the filters from lingering in case something happened to the connection. Removing already removed filters should be a safe noop.
author Kim Alvefur <zash@zash.se>
date Sat, 05 Oct 2019 16:55:58 +0200
parent 7078:ec17115e3721
child 12355:a0ff5c438e9d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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841d61be198f Remove version number from copyright headers
Matthew Wild <mwild1@gmail.com>
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1 -- Prosody IM
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b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
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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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8
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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 };