Mercurial > prosody-hg

annotate util/presence.lua @ 13127:f45a29b32f7a

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mod_http: Make RFC 7239 Forwarded opt-in for now to be safe Supporting both methods at the same time may open to spoofing attacks, whereby a client sends a Forwarded header that is not stripped by a reverse proxy, leading Prosody to use that instead of the X-Forwarded-* headers actually sent by the proxy. By only supporting one at a time, it can be configured to match what the proxy uses. Disabled by default since implementations are sparse and X-Forwarded-* are everywhere.
author Kim Alvefur <zash@zash.se>
date Sat, 03 Jun 2023 21:53:20 +0200
parents d4f5d47f874d
children
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051279755cad mod_presence: Move function for selecting "top resources" into a new util.presence
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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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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 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 }