prosody
67c01f75af97
util/pubsub.lua

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util/pubsub.lua @ 3697:67c01f75af97

mod_pubsub: Use pubsub_error_reply everywhere
author Florian Zeitz <florob@babelmonkeys.de>
date Fri, 03 Dec 2010 16:36:13 +0100
parent 3672:b24db47995ac
child 3698:77171fd1dc3c
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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:create(node, actor)
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32 if not self.nodes[node] then
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33 self.nodes[node] = { name = node, subscribers = {}, config = {}, data = {} };
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34 return true;
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35 end
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36 return false, "conflict";
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37 end
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38
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39 function service:publish(node, actor, id, item)
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40 local node_obj = self.nodes[node];
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41 if not node_obj then
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42 node_obj = { name = node, subscribers = {}, config = {}, data = {} };
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43 self.nodes[node] = node_obj;
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44 end
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45 node_obj.data[id] = item;
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46 self.cb.broadcaster(node, node_obj.subscribers, item);
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47 return true;
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48 end
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49
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50 function service:get(node, actor, id)
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51 local node_obj = self.nodes[node];
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52 if node_obj then
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53 if id then
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54 return { node_obj.data[id] };
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55 else
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56 return node_obj.data;
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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 return _M;