prosody
638f627e707f
plugins/mod_message.lua

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plugins/mod_message.lua @ 13134:638f627e707f

util.datamanager: Add O(1) list indexing with on-disk index Index file contains offsets and lengths of each item() which allows seeking directly to each item and reading it without parsing the entire file. Also allows tricks like binary search, assuming items have some defined order. We take advantage of the 1-based indexing in tables to store a magic header in the 0 position, so that table index 1 ends up at file index 1.
author Kim Alvefur <zash@zash.se>
date Tue, 11 May 2021 02:09:56 +0200
parent 12977:74b9e05af71e
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9
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10 local full_sessions = prosody.full_sessions;
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11 local bare_sessions = prosody.bare_sessions;
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12
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13 local st = require "prosody.util.stanza";
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14 local jid_bare = require "prosody.util.jid".bare;
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15 local jid_split = require "prosody.util.jid".split;
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16 local user_exists = require "prosody.core.usermanager".user_exists;
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17
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18 local function process_to_bare(bare, origin, stanza)
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19 local user = bare_sessions[bare];
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20
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21 local t = stanza.attr.type;
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22 if t == "error" then
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23 return true; -- discard
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24 elseif t == "groupchat" then
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25 local node, host = jid_split(bare);
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26 if user_exists(node, host) then
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27 if module:fire_event("message/bare/groupchat", {
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28 origin = origin, stanza = stanza;
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29 }) then
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30 return true;
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31 end
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32 end
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33
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34 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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35 elseif t == "headline" then
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36 if user and stanza.attr.to == bare then
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37 for _, session in pairs(user.sessions) do
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38 if session.presence and session.priority >= 0 then
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39 session.send(stanza);
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40 end
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41 end
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42 end -- current policy is to discard headlines if no recipient is available
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43 else -- chat or normal message
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44 if user then -- some resources are connected
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45 local recipients = user.top_resources;
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46 if recipients then
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47 local sent;
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48 for i=1,#recipients do
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49 sent = recipients[i].send(stanza) or sent;
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50 end
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51 if sent then
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52 return true;
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53 end
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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 local ok
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59 if user_exists(node, host) then
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60 ok = module:fire_event('message/offline/handle', {
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61 username = node, -- username of the recipient of the offline message
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62 origin = origin, -- the sender
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63 stanza = stanza,
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64 });
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65 end
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66
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67 if not ok then
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68 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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69 end
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70 end
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71 return true;
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72 end
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73
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74 module:hook("message/full", function(data)
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75 -- message to full JID received
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76 local origin, stanza = data.origin, data.stanza;
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77
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78 local session = full_sessions[stanza.attr.to];
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79 if session and session.send(stanza) then
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80 return true;
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81 else -- resource not online
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82 return process_to_bare(jid_bare(stanza.attr.to), origin, stanza);
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83 end
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84 end, -1);
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85
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86 module:hook("message/bare", function(data)
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87 -- message to bare JID received
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88 local origin, stanza = data.origin, data.stanza;
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89
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90 return process_to_bare(stanza.attr.to or (origin.username..'@'..origin.host), origin, stanza);
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91 end, -1);