prosody
0b0a42542456
util/presence.lua

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util/presence.lua @ 11056:0b0a42542456

util.jid: Fix special escaping of '\' per XEP-0106 From XEP-0106 §2. Requirements: > in certain circumstances, the escaping character itself ("\") might > also be escaped Later in §4.2 Address Transformation Algorithm it is stated that the backslash would only be escaped if it forms an escape sequence. Thus '\foo' is unaltered but '\20' must be escaped into '\5c20'. Thanks to lovetox and jonas’ for brining up.
author Kim Alvefur <zash@zash.se>
date Fri, 28 Aug 2020 18:44:02 +0200
parent 8885:d4f5d47f874d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
7279
051279755cad mod_presence: Move function for selecting "top resources" into a new util.presence
Kim Alvefur <zash@zash.se>
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1 -- Prosody IM
051279755cad mod_presence: Move function for selecting "top resources" into a new util.presence
Kim Alvefur <zash@zash.se>
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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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5 -- This project is MIT/X11 licensed. Please see the
051279755cad mod_presence: Move function for selecting "top resources" into a new util.presence
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6 -- COPYING file in the source package for more information.
051279755cad mod_presence: Move function for selecting "top resources" into a new util.presence
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7 --
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8
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9 local t_insert = table.insert;
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10
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11 local function select_top_resources(user)
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12 local priority = 0;
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13 local recipients = {};
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14 for _, session in pairs(user.sessions) do -- find resource with greatest priority
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15 if session.presence then
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16 local p = session.priority;
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17 if p > priority then
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18 priority = p;
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19 recipients = {session};
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20 elseif p == priority then
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21 t_insert(recipients, session);
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22 end
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23 end
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24 end
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25 return recipients;
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26 end
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27 local function recalc_resource_map(user)
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28 if user then
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29 user.top_resources = select_top_resources(user);
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30 if #user.top_resources == 0 then user.top_resources = nil; end
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31 end
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32 end
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33
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34 return {
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35 select_top_resources = select_top_resources;
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36 recalc_resource_map = recalc_resource_map;
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37 }