prosody-modules
23c4c61a1068
mod_muc_gateway_optimize/mod_muc_gateway_optimize.lua

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mod_muc_gateway_optimize/mod_muc_gateway_optimize.lua @ 6055:23c4c61a1068

mod_muc_gateway_optimize: New module to optimize muc presence to remote gateways Some gateways are happy to receive presence for each participant in MUCs that they are in only once, to any one of their joined JIDs.
author Stephen Paul Weber <singpolyma@singpolyma.net>
date Sun, 17 Nov 2024 22:32:52 -0500
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23c4c61a1068 mod_muc_gateway_optimize: New module to optimize muc presence to remote gateways
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1 local jid = require("util.jid")
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2 local mod_muc = module:depends("muc")
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3
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4 local gateway_hosts = module:get_option_array("gateway_hosts", {})
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5
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6 function optimize(remote_host, event)
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7 local stanza = event.stanza
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8 module:log("debug", "optimize presence event destined for " .. remote_host)
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9
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10 local muc_x = stanza:get_child("x", "http://jabber.org/protocol/muc#user")
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11 if muc_x then
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12 for status in muc_x:childtags("status") do
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13 if status.attr.status == "110" then
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14 module:log("debug", "optimize delivering 110")
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15 -- Always deliver self-presence
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16 return
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17 end
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18 end
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19 end
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20
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21 local bare_jid = jid.bare(stanza.attr.to)
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22 local room = mod_muc.get_room_from_jid(jid.bare(stanza.attr.from))
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23 if not room then return end
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24 for nick, occupant in room:each_occupant() do
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25 local occupant_host = jid.host(occupant.bare_jid)
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26 if occupant_host == remote_host then
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27 -- This is the "first" occupant from the host
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28 -- which is the only one we will route non-110
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29 -- presence to
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30 if occupant.bare_jid == bare_jid then
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31 module:log("debug", "optimize found first occupant, so route")
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32 return
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33 else
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34 module:log("debug", "optimize found non-first occupant, so drop")
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35 return true
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36 end
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37 end
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38 end
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39 -- If we get here we found no occupants for this host
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40 module:log("debug", "optimize found no occupants for host " .. remote_host)
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41 end
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42
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43 -- Note this will only affect gateways over s2s for now
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44 module:hook("route/remote", function (event)
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45 if event.stanza.name ~= "presence" then
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46 return
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47 end
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48
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49 local remote_host = jid.host(event.stanza.attr.to)
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50 for _, gateway_host in pairs(gateway_hosts) do
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51 if remote_host == gateway_host then
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52 return optimize(remote_host, event)
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53 end
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54 end
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55 end, 1000)