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annotate mod_muc_bot/mod_muc_bot.lua @ 5406:b86d80e21c60

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mod_http_oauth2: Validate consistency of response and grant types Ensure that these correlated fields make sense per RFC 7591 ยง 2.1, even though we currently only check the response type during authorization. This could probably all be deleted if (when!) we remove the implicit grant, since then these things don't make any sense anymore.
author Kim Alvefur <zash@zash.se>
date Tue, 02 May 2023 16:34:31 +0200
parents 205b9d06fe6b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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30f2d7c3f946 mod_muc_bot: Attempt at module easing creation of stateless bots
Kim Alvefur <zash@zash.se>
parents:
diff changeset
1 local st = require "util.stanza";
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2 local jid = require "util.jid";
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3
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4 local bots = module:get_option_set("known_bots", {});
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5
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6 module:hook("muc-occupant-groupchat", function(event)
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7 if event.occupant then return end -- skip messages from actual occupants
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8 local room = event.room;
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9
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10 if bots:contains(jid.bare(event.from)) or bots:contains(jid.host(event.from)) then
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11
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12 local nick = room:get_registered_nick(jid);
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13
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14 if not nick then
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15 -- Allow bot to specify its own nick, but we're appending '[bot]' to it.
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16 -- FIXME HATS!!!
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17 nick = event.stanza:get_child_text("nick", "http://jabber.org/protocol/nick");
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18 nick = (nick or jid.bare(event.from)) .. "[bot]";
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19 end
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20
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21 local virtual_occupant_jid = jid.prep(room.jid .. "/" .. nick, true);
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22 if not virtual_occupant_jid then
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23 module:send(st.error_reply(event.stanza, "modify", "jid-malformed", "Nickname must pass strict validation", room.jid));
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24 return true;
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25 end
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26
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205b9d06fe6b mod_muc_bot: Use correct JID for virtual occupant
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parents: 4567
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27 local occupant = room:new_occupant(jid.bare(event.from), virtual_occupant_jid);
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d25f0fea270f mod_muc_bot: Reduce hackyness of occupant construction
Kim Alvefur <zash@zash.se>
parents: 4563
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28 local join = st.presence({from = event.from; to = virtual_occupant_jid});
d25f0fea270f mod_muc_bot: Reduce hackyness of occupant construction
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parents: 4563
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29 local dest_x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"});
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30 occupant:set_session(event.from, join, true);
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3b2ae854842c mod_muc_bot: Save occupant to room
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31 room:save_occupant(occupant);
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32 room:publicise_occupant_status(occupant, dest_x);
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33 -- Inject virtual occupant to trick all the other hooks on this event that
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34 -- this is an actual legitimate participant.
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35 event.occupant = occupant;
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36
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37 end
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38 end, 66);
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39
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40 module:hook("muc-occupant-pre-join", function(event)
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41 local room = event.room;
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42 local nick = jid.resource(event.occupant.nick);
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43 if nick:sub(-5, -1) == "[bot]" then
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44 event.origin.send(st.error_reply(event.stanza, "modify", "policy-violation", "Only known bots may use the [bot] suffix", room.jid));
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45 return true;
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46 end
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47 end, 3);
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48
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49 module:hook("muc-occupant-pre-change", function(event)
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50 local room = event.room;
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51 local nick = jid.resource(event.dest_occupant.nick);
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52 if nick:sub(-5, -1) == "[bot]" then
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parents:
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53 event.origin.send(st.error_reply(event.stanza, "modify", "policy-violation", "Only known bots may use the [bot] suffix", room.jid));
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54 return true;
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55 end
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56 end, 3);
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57
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58 if not module:get_option_boolean("bots_get_messages", true) then
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59 module:hook("muc-broadcast-message", function (event)
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60 event.room:broadcast(event.stanza, function (nick, occupant)
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61 if nick:sub(-5, -1) == "[bot]" or bots:contains(occupant.bare_jid) or bots:contains(jid.host(occupant.bare_jid)) then
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62 return false;
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63 else
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64 return true;
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65 end
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66 end);
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67 return true;
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68 end, -100);
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69 end
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70
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71 if module:get_option_boolean("ignore_bot_errors", true) then
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72 module:hook("message/full", function (event)
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73 local stanza = event.stanza;
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74 if stanza.attr.type == "error" then
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75 if bots:contains(jid.bare(stanza.attr.from)) or bots:contains(jid.host(stanza.attr.from)) then
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76 module:log("debug", "Ignoring error from known bot");
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77 return true;
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78 end
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79 end
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80 end, 1);
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81 end
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82
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parents:
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83 assert(string.sub("foo[bot]", -5, -1) == "[bot]", "substring indicies, how do they work?");