prosody
846df07536eb
plugins/mod_message.lua

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plugins/mod_message.lua @ 1389:846df07536eb

modulemanager: Expose api table to allow others to extend the module API
author Matthew Wild <mwild1@gmail.com>
date Tue, 23 Jun 2009 01:48:01 +0100
parent 1329:599a058d3961
child 1418:d14de6cb8b5b
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1
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2 local full_sessions = full_sessions;
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3 local bare_sessions = bare_sessions;
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4
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5 local st = require "util.stanza";
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6 local jid_bare = require "util.jid".bare;
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7 local jid_split = require "util.jid".split;
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8 local user_exists = require "core.usermanager".user_exists;
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9 local offlinemanager = require "core.offlinemanager";
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10 local t_insert = table.insert;
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12 local function select_top_resources(user)
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13 local priority = 0;
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14 local recipients = {};
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15 for _, session in pairs(user.sessions) do -- find resource with greatest priority
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16 if session.presence then
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17 -- TODO check active privacy list for session
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18 local p = session.priority;
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19 if p > priority then
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20 priority = p;
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21 recipients = {session};
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22 elseif p == priority then
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23 t_insert(recipients, session);
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24 end
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25 end
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26 end
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27 return recipients;
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28 end
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29
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30 local function process_to_bare(bare, origin, stanza)
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31 local user = bare_sessions[bare];
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33 local t = stanza.attr.type;
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34 if t == "error" then
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35 -- discard
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36 elseif t == "groupchat" then
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37 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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38 elseif t == "headline" then
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39 if user then
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40 for _, session in pairs(user.sessions) do
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41 if session.presence and session.priority >= 0 then
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42 session.send(stanza);
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43 end
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44 end
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45 end -- current policy is to discard headlines if no recipient is available
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46 else -- chat or normal message
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47 if user then -- some resources are connected
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48 local recipients = select_top_resources(user);
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49 if #recipients > 0 then
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50 for i=1,#recipients do
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51 recipients[i].send(stanza);
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52 end
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53 return true;
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54 end
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55 end
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56 -- no resources are online
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57 local node, host = jid_split(bare);
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58 if user_exists(node, host) then
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59 -- TODO apply the default privacy list
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60 offlinemanager.store(node, host, stanza);
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61 else
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62 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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63 end
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64 end
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65 return true;
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66 end
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67
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68 module:hook("message/full", function(data)
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69 -- message to full JID recieved
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70 local origin, stanza = data.origin, data.stanza;
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71
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72 local session = full_sessions[stanza.attr.to];
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73 if session then
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74 -- TODO fire post processing event
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75 session.send(stanza);
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76 return true;
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77 else -- resource not online
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78 return process_to_bare(jid_bare(stanza.attr.to), origin, stanza);
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79 end
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80 end);
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81
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82 module:hook("message/bare", function(data)
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83 -- message to bare JID recieved
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84 local origin, stanza = data.origin, data.stanza;
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85
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86 return process_to_bare(stanza.attr.to or (origin.username..'@'..origin.host), origin, stanza);
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87 end);