prosody
28d9fff67fed
util/pubsub.lua

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util/pubsub.lua @ 3786:28d9fff67fed

mod_iq: Extra IQ get and set sub-events are now fired: "iq-{get,set}/{host,self,bare}/xmlns:tag" (when "iq/{host,self,bare}/xmlns:tag" is unhandled).
author Waqas Hussain <waqas20@gmail.com>
date Sun, 28 Nov 2010 02:24:26 +0500
parent 3641:3603aeb325de
child 3672:b24db47995ac
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1 module("pubsub", package.seeall);
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2
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3 local service = {};
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4 local service_mt = { __index = service };
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5
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6 function new(cb)
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7 return setmetatable({ cb = cb or {}, nodes = {} }, service_mt);
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8 end
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9
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10 function service:add_subscription(node, actor, jid)
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11 local node_obj = self.nodes[node];
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12 if not node_obj then
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13 return false, "item-not-found";
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14 end
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15 node_obj.subscribers[jid] = true;
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16 return true;
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17 end
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18
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19 function service:remove_subscription(node, actor, jid)
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20 self.nodes[node].subscribers[jid] = nil;
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21 return true;
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22 end
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23
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24 function service:get_subscription(node, actor, jid)
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25 local node_obj = self.nodes[node];
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26 if node_obj then
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27 return node_obj.subscribers[jid];
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28 end
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29 end
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30
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31 function service:publish(node, actor, id, item)
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32 local node_obj = self.nodes[node];
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33 if not node_obj then
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34 node_obj = { name = node, subscribers = {}, config = {}, data = {} };
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35 self.nodes[node] = node_obj;
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36 end
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37 node_obj.data[id] = item;
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38 self.cb.broadcaster(node, node_obj.subscribers, item);
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39 return true;
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40 end
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41
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42 function service:get(node, actor, id)
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43 local node_obj = self.nodes[node];
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44 if node_obj then
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45 if id then
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46 return { node_obj.data[id] };
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47 else
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48 return node_obj.data;
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49 end
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50 end
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51 end
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52
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53 return _M;