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88cc513e81c8
plugins/pubsub.lua

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plugins/pubsub.lua @ 159:88cc513e81c8

plugins.pubsub: Fire pubsub/event on incoming pubsub notifications
author Matthew Wild <mwild1@gmail.com>
date Fri, 03 Dec 2010 04:11:18 +0000
parent 154:a4dc96890729
child 165:8c67ea868c06
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1 local jid_bare = require "util.jid".bare;
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2
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3 local xmlns_pubsub = "http://jabber.org/protocol/pubsub";
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4 local xmlns_pubsub_event = "http://jabber.org/protocol/pubsub#event";
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5 local xmlns_pubsub_errors = "http://jabber.org/protocol/pubsub#errors";
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6
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7 local pubsub = {};
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8 local pubsub_mt = { __index = pubsub };
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9
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10 function verse.plugins.pubsub(stream)
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11 stream.pubsub = setmetatable({ stream = stream }, pubsub_mt);
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12 stream:hook("message", function (message)
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13 for pubsub_event in message:matching_tags("event", xmlns_pubsub_event) do
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14 local items = pubsub_event:get_child("items");
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15 if items then
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16 local node = items.attr.node;
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17 for item in items:matching_tags("item") do
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18 stream:event("pubsub/event", {
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19 from = message.attr.from;
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20 node = node;
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21 item = item;
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22 });
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23 end
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24 end
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25 end
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26 end);
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27 end
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28
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29 function pubsub:subscribe(server, node, jid, callback)
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30 self.stream:send_iq(verse.iq({ to = server, type = "set" })
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31 :tag("pubsub", { xmlns = xmlns_pubsub })
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32 :tag("subscribe", { node = node, jid = jid or jid_bare(self.stream.jid) })
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33 , function (result)
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34 if callback then
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35 if result.attr.type == "result" then
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36 callback(true);
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37 else
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38 callback(false, result:get_error());
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39 end
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40 end
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41 end
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42 );
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43 end
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44
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45 function pubsub:publish(server, node, id, item, callback)
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46 self.stream:send_iq(verse.iq({ to = server, type = "set" })
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47 :tag("pubsub", { xmlns = xmlns_pubsub })
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48 :tag("publish", { node = node })
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49 :tag("item", { id = id })
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50 :add_child(item)
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51 , function (result)
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52 if callback then
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53 if result.attr.type == "result" then
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54 callback(true);
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55 else
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56 callback(false, result:get_error());
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57 end
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58 end
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59 end
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60 );
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61 end