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d862093d9f91
plugins/pep.lua

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plugins/pep.lua @ 164:d862093d9f91

plugins.pep: Only add +notify feature if there weren't any handlers for it already
author Matthew Wild <mwild1@gmail.com>
date Wed, 15 Dec 2010 14:49:46 +0000
parent 114:37f5966cff15
child 216:3aac084855e6
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114
37f5966cff15 verse.plugins.pep: New plugin to add an API for sending and catching PEP events
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1
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2 local xmlns_pubsub = "http://jabber.org/protocol/pubsub";
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3 local xmlns_pubsub_event = xmlns_pubsub.."#event";
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4
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5 function verse.plugins.pep(stream)
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6 stream.pep = {};
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7
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8 stream:hook("message", function (message)
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9 local event = message:get_child("event", xmlns_pubsub_event);
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10 if not event then return; end
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11 local items = event:get_child("items");
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12 if not items then return; end
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13 local node = items.attr.node;
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14 for item in items:childtags() do
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15 if item.name == "item" and item.attr.xmlns == xmlns_pubsub_event then
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16 stream:event("pep/"..node, {
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17 from = message.attr.from,
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18 item = item.tags[1],
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19 });
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20 end
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21 end
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22 end);
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23
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24 function stream:hook_pep(node, callback, priority)
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25 local handlers = stream.events._handlers["pep/"..node];
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26 if not(handlers) or #handlers == 0 then
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27 stream:add_disco_feature(node.."+notify");
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28 end
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29 stream:hook("pep/"..node, callback, priority);
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30 end
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31
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32 function stream:unhook_pep(node, callback)
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33 stream:unhook("pep/"..node, callback);
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34 local handlers = stream.events._handlers["pep/"..node];
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35 if not(handlers) or #handlers == 0 then
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36 stream:remove_disco_feature(node.."+notify");
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37 end
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38 end
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39
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40 function stream:publish_pep(item, node)
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41 local publish = verse.iq({ type = "set" })
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42 :tag("pubsub", { xmlns = xmlns_pubsub })
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43 :tag("publish", { node = node or item.attr.xmlns })
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44 :tag("item")
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45 :add_child(item);
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46 return stream:send_iq(publish);
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47 end
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48 end