prosody
cbbb4f4fed68
plugins/mod_pep.lua

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plugins/mod_pep.lua @ 1400:cbbb4f4fed68

mod_pep: Added some comments
author Waqas Hussain <waqas20@gmail.com>
date Wed, 24 Jun 2009 19:28:48 +0500
parent 1399:8879f8278762
child 1401:a3ce55c1e43a
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2 local jid_bare = require "util.jid".bare;
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3 local jid_split = require "util.jid".split;
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4 local st = require "util.stanza";
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5 local hosts = hosts;
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6 local user_exists = require "core.usermanager".user_exists;
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7 local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed;
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8 local pairs, ipairs = pairs, ipairs;
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9 local load_roster = require "core.rostermanager".load_roster;
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11 local data = {};
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12 local recipients = {};
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14 module:add_identity("pubsub", "pep");
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15 module:add_feature("http://jabber.org/protocol/pubsub#publish");
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17 local function publish(session, node, item)
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18 local stanza = st.message({from=session.full_jid, type='headline'})
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19 :tag('event', {xmlns='http://jabber.org/protocol/pubsub#event'})
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20 :tag('items', {node=node})
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21 :add_child(item)
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22 :up()
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23 :up();
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25 local bare = session.username..'@'..session.host;
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26 -- store for the future
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27 local user_data = data[bare];
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28 if not user_data then user_data = {}; data[bare] = user_data; end
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29 user_data[node] = stanza;
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31 -- broadcast to resources
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32 stanza.attr.to = bare;
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33 core_route_stanza(session, stanza);
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34
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35 -- broadcast to contacts
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36 for jid, item in pairs(session.roster) do
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37 if jid and jid ~= "pending" and (item.subscription == 'from' or item.subscription == 'both') then
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38 stanza.attr.to = jid;
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39 core_route_stanza(session, stanza);
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40 end
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41 end
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42 end
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43
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44 module:hook("presence/bare", function(event)
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45 -- inbound presence to bare JID recieved
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46 local origin, stanza = event.origin, event.stanza;
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48 local user = stanza.attr.to or (origin.username..'@'..origin.host);
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49 local bare = jid_bare(stanza.attr.from);
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50 local item = load_roster(jid_split(user))[bare];
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51 if not stanza.attr.to or (item and (item.subscription == 'from' or item.subscription == 'both')) then
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52 local t = stanza.attr.type;
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53 local recipient = stanza.attr.from;
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54 if t == "unavailable" or t == "error" then
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55 if recipients[user] then recipients[user][recipient] = nil; end
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56 elseif not t then
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57 recipients[user] = recipients[user] or {};
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58 if not recipients[user][recipient] then
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59 recipients[user][recipient] = true;
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60 for node, message in pairs(data[user] or {}) do
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61 message.attr.to = stanza.attr.from;
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62 origin.send(message);
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63 end
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64 end
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65 end
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66 end
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67 end, 10);
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69 module:add_iq_handler("c2s", "http://jabber.org/protocol/pubsub", function (session, stanza)
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70 if stanza.attr.type == 'set' and (not stanza.attr.to or jid_bare(stanza.attr.from) == stanza.attr.to) then
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71 local payload = stanza.tags[1];
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72 if payload.name == 'pubsub' then -- <pubsub xmlns='http://jabber.org/protocol/pubsub'>
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73 payload = payload.tags[1];
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74 if payload and payload.name == 'publish' and payload.attr.node then -- <publish node='http://jabber.org/protocol/tune'>
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75 local node = payload.attr.node;
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76 payload = payload.tags[1];
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77 if payload then -- <item>
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78 publish(session, node, payload);
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79 return true;
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80 end -- TODO else error
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81 end -- TODO else error
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82 end
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83 end
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84 session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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85 end);
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86