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mod_mamsub/mod_mamsub.lua @ 2485:81956bb99289
mod_persisthosts/README: Fix formatting
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 05 Feb 2017 16:05:47 +0100 |
parent | 1748:0697fbef9134 |
rev | line source |
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1 -- MAM Subscriptions prototype |
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2 -- Copyright (C) 2015 Kim Alvefur |
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3 -- |
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4 -- This file is MIT/X11 licensed. |
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5 |
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6 local mt = require"util.multitable"; |
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7 local st = require"util.stanza"; |
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8 |
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9 local xmlns_mamsub = "http://prosody.im/protocol/mamsub"; |
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10 |
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11 module:add_feature(xmlns_mamsub); |
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12 |
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13 local host_sessions = prosody.hosts[module.host].sessions; |
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14 |
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15 local weak = { __mode = "k" }; |
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16 |
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17 module:hook("iq-set/self/"..xmlns_mamsub..":subscribe", function (event) |
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18 local origin, stanza = event.origin, event.stanza; |
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19 if origin.mamsub ~= nil then |
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20 origin.send(st.error_reply(stanza, "modify", "conflict")); |
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21 return true; |
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22 end |
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23 origin.mamsub = xmlns_mamsub; |
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24 local mamsub_sessions = host_sessions[origin.username].mamsub_sessions; |
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25 if not mamsub_sessions then |
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26 mamsub_sessions = setmetatable({}, weak); |
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27 host_sessions[origin.username].mamsub_sessions = mamsub_sessions; |
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28 end |
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29 mamsub_sessions[origin] = true; |
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30 origin.send(st.reply(stanza)); |
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31 return true; |
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32 end); |
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33 |
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34 module:hook("iq-set/self/"..xmlns_mamsub..":unsubscribe", function (event) |
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35 local origin, stanza = event.origin, event.stanza; |
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36 if origin.mamsub ~= xmlns_mamsub then |
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37 origin.send(st.error_reply(stanza, "modify", "conflict")); |
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38 return true; |
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39 end |
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40 origin.mamsub = nil; |
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41 local mamsub_sessions = host_sessions[origin.username].mamsub_sessions; |
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42 if mamsub_sessions then |
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43 mamsub_sessions[origin] = nil; |
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44 end |
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45 origin.send(st.reply(stanza)); |
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46 return true; |
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47 end); |
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48 |
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49 module:hook("archive-message-added", function (event) |
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50 local user_session = host_sessions[event.for_user]; |
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51 local mamsub_sessions = user_session and user_session.mamsub_sessions; |
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52 if not mamsub_sessions then return end; |
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53 |
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54 local for_broadcast = st.message():tag("mamsub", { xmlns = xmlns_mamsub }) |
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55 :tag("forwarded", { xmlns = "urn:xmpp:forward:0" }) |
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56 :add_child(event.stanza); |
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57 |
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58 for session in pairs(mamsub_sessions) do |
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59 if session.mamsub == xmlns_mamsub then |
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60 for_broadcast.attr.to = session.full_jid; |
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61 session.send(for_broadcast); |
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62 end |
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63 end |
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64 end); |