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annotate mod_minimix/mod_minimix.lua @ 3053:2ad35f08bd57

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mod_deny_omemo: Prevents publishing and retreival of OMEMO PEP nodes
author Kim Alvefur <zash@zash.se>
date Mon, 28 May 2018 14:44:53 +0200
parents a57ed544fece
children 24e49391d4e8
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a57ed544fece mod_minimix: Experiment in account-based MUC joins
Kim Alvefur <zash@zash.se>
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1 -- mod_minimix
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2 --
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3 -- Rewrite MUC stanzas suich that the account / bare JID joins rooms instead of clients / full JIDs
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4 --
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5 local jid_split, jid_join, jid_node, jid_bare = import("util.jid", "split", "join", "node", "bare");
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6 local st = require "util.stanza";
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7
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8 local users = prosody.hosts[module.host].sessions;
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9
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10 local joined_rooms = module:open_store("joined_rooms", "map"); -- TODO cache?
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11 local room_state = module:open_store("joined_rooms_state", "map");
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12 local all_room_state = module:open_store("joined_rooms_state");
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13
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14 -- FIXME You can join but you can never leave.
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15
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16 module:hook("pre-presence/full", function (event)
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17 local origin, stanza = event.origin, event.stanza;
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18
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19 local room_node, room_host, nickname = jid_split(stanza.attr.to);
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20 local room_jid = jid_join(room_node, room_host);
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21 local username = origin.username;
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22
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23 if stanza.attr.type == nil and stanza:get_child("x", "http://jabber.org/protocol/muc") then
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24 module:log("debug", "Joining %s as %s", room_jid, nickname);
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25
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26 -- TODO Should this be kept track of before the *initial* join has been confirmed or?
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27 if origin.joined_rooms then
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28 origin.joined_rooms[room_jid] = nickname;
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29 else
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30 origin.joined_rooms = { [room_jid] = nickname };
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31 end
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32
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33 if joined_rooms:get(username, room_jid) then
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34 module:log("debug", "Already joined to %s as %s", room_jid, nickname);
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35 local state = assert(all_room_state:get(username));
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36 for jid, stanza in pairs(state) do
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37 if jid ~= room_jid and jid ~= stanza.attr.to then
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38 origin.send(st.clone(st.deserialize(stanza)));
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39 end
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40 end
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41 origin.send(st.deserialize(state[stanza.attr.to]));
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42 origin.send(st.message({type="groupchat",to=origin.full_jid,from=room_jid}):tag("subject"):text(state[room_jid]));
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43 -- Send on-join stanzas from local state, somehow
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44 -- Maybe tell them their nickname was changed if it doesn't match the account one
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45 return true;
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46 end
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47
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48 joined_rooms:set(username, room_jid, nickname);
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49
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50 local account_join = st.clone(stanza);
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51 account_join.attr.from = jid_join(origin.username, origin.host);
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52 module:send(account_join);
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53
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54 return true;
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55 elseif stanza.attr.type == "unavailable" and joined_rooms:get(username, room_jid) then
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56 origin.send(st.reply(stanza));
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57 return true;
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58 end
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59 end);
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60
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61 module:hook("pre-message/bare", function (event)
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62 local origin, stanza = event.origin, event.stanza;
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63 local username = origin.username;
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64 local room_jid = jid_bare(stanza.attr.to);
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65
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66 module:log("info", "%s", stanza)
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67 if joined_rooms:get(username, room_jid) then
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68 local from_account = st.clone(stanza);
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69 from_account.attr.from = jid_join(origin.username, origin.host);
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70 module:log("debug", "Sending:\n%s\nInstead of:\n%s", from_account, stanza);
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71 module:send(from_account, origin);
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72 return true;
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73 end
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74 end);
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75
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76 local function handle_to_bare_jid(event)
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77 local origin, stanza = event.origin, event.stanza;
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78 local username = jid_node(stanza.attr.to);
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79 local room_jid = jid_bare(stanza.attr.from);
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80
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81 if joined_rooms:get(username, room_jid) then
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82 module:log("debug", "handle_to_bare_jid %q, %s", room_jid, stanza);
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83 -- Broadcast to clients
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84
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85 if stanza.name == "message" and stanza.attr.type == "groupchat"
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86 and not stanza:get_child("body") and stanza:get_child("subject") then
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87 room_state:set(username, room_jid, stanza:get_child_text("subject"));
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88 elseif stanza.name == "presence" then
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89 if stanza.attr.type == nil then
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90 room_state:set(username, stanza.attr.from, st.preserialize(stanza));
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91 elseif stanza.attr.type == "unavailable" then
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92 room_state:set(username, stanza.attr.from, nil);
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93 end
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94 end
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95
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96 if users[username] then
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97 module:log("debug", "%s has sessions", username);
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98 for _, session in pairs(users[username].sessions) do
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99 module:log("debug", "Session: %s", jid_join(session.username, session.host, session.resource));
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100 if session.joined_rooms and session.joined_rooms[room_jid] then
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101 module:log("debug", "Is joined");
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102 local s = st.clone(stanza);
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103 s.attr.to = session.full_jid;
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104 session.send(s);
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105 else
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106 module:log("debug", "session.joined_rooms = %s", session.joined_rooms);
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107 end
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108 end
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109 end
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110
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111 return true;
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112 end
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113 end
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114
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115 module:hook("presence/bare", handle_to_bare_jid);
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116 module:hook("message/bare", handle_to_bare_jid);