prosody
39197fe5ae94
plugins/mod_message.lua

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plugins/mod_message.lua @ 1294:39197fe5ae94

stanza_router: workaround for a Pidgin bug which sets 'to' to the SRV result
author Waqas Hussain <waqas20@gmail.com>
date Wed, 03 Jun 2009 21:27:32 +0500
parent 1289:d0c38cac1687
child 1329:599a058d3961
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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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5 local jid_bare = require "util.jid".bare;
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6 local jid_split = require "util.jid".split;
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7 local user_exists = require "core.usermanager".user_exists;
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8 local offlinemanager = require "core.offlinemanager";
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9 local t_insert = table.insert;
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10
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11 local function select_top_resources(user)
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12 local priority = 0;
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13 local recipients = {};
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14 for _, session in pairs(user.sessions) do -- find resource with greatest priority
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15 if session.presence then
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16 -- TODO check active privacy list for session
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17 local p = session.priority;
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18 if p > priority then
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19 priority = p;
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20 recipients = {session};
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21 elseif p == priority then
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22 t_insert(recipients, session);
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23 end
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24 end
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25 end
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26 return recipients;
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27 end
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28
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29 local function process_to_bare(bare, origin, stanza)
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30 local user = bare_sessions[bare];
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31
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32 local t = stanza.attr.type;
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33 if t == "error" then
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34 -- discard
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35 elseif t == "groupchat" then
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36 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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37 elseif t == "headline" then
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38 if user then
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39 for _, session in pairs(user.sessions) do
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40 if session.presence and session.priority >= 0 then
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41 session.send(stanza);
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42 end
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43 end
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44 end -- current policy is to discard headlines if no recipient is available
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45 else -- chat or normal message
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46 if user then -- some resources are connected
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47 local recipients = select_top_resources(user);
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48 if #recipients > 0 then
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49 for i=1,#recipients do
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50 recipients[i].send(stanza);
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51 end
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52 return true;
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53 end
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54 end
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55 -- no resources are online
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56 local node, host = jid_split(bare);
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57 if user_exists(node, host) then
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58 -- TODO apply the default privacy list
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59 offlinemanager.store(node, host, stanza);
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60 else
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61 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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62 end
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63 end
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64 return true;
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65 end
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66
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67 module:hook("message/full", function(data)
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68 -- message to full JID recieved
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69 local origin, stanza = data.origin, data.stanza;
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70
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71 local session = full_sessions[stanza.attr.to];
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72 if session then
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73 -- TODO fire post processing event
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74 session.send(stanza);
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75 return true;
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76 else -- resource not online
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77 return process_to_bare(jid_bare(stanza.attr.to), origin, stanza);
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78 end
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79 end);
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80
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81 module:hook("message/bare", function(data)
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82 -- message to bare JID recieved
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83 local origin, stanza = data.origin, data.stanza;
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84
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85 return process_to_bare(stanza.attr.to or (origin.username..'@'..origin.host), origin, stanza);
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86 end);