prosody-modules
4d6af8950016
mod_audit/mod_audit.lua

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mod_audit/mod_audit.lua @ 5170:4d6af8950016

mod_muc_moderation: Derive role from reserved nickname if occupant When using a different client to moderate than the one used to participate in the chat, e.g. a command line tool like clix, there's no occupant and no role to use in the permission check. Previously the default role based on affiliation was used. Now if you are present in the room using your reserved nick, the role you have there is used in the permission check instead of the default affiliation-derived role.
author Kim Alvefur <zash@zash.se>
date Sun, 19 Feb 2023 18:17:37 +0100
parent 5115:4a5837591380
child 5250:d9577083c5f5
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1 module:set_global();
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2
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3 local audit_log_limit = module:get_option_number("audit_log_limit", 10000);
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4 local cleanup_after = module:get_option_string("audit_log_expires_after", "2w");
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5
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6 local time_now = os.time;
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7 local st = require "util.stanza";
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8 local moduleapi = require "core.moduleapi";
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9
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10 local host_wide_user = "@";
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11
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12 local stores = {};
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13
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14 local function get_store(self, host)
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15 local store = rawget(self, host);
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16 if store then
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17 return store
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18 end
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19 store = module:context(host):open_store("audit", "archive");
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20 rawset(self, host, store);
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21 return store;
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22 end
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23
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24 setmetatable(stores, { __index = get_store });
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25
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26
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27 local function session_extra(session)
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28 local attr = {
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29 xmlns = "xmpp:prosody.im/audit",
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30 };
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31 if session.id then
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32 attr.id = session.id;
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33 end
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34 if session.type then
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35 attr.type = session.type;
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36 end
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37 local stanza = st.stanza("session", attr);
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38 if session.ip then
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39 stanza:text_tag("remote-ip", session.ip);
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40 end
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41 return stanza
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42 end
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43
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44 local function audit(host, user, source, event_type, extra)
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45 if not host or host == "*" then
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46 error("cannot log audit events for global");
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47 end
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48 local user_key = user or host_wide_user;
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49
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50 local attr = {
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51 ["source"] = source,
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52 ["type"] = event_type,
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53 };
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54 if user_key ~= host_wide_user then
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55 attr.user = user_key;
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56 end
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57 local stanza = st.stanza("audit-event", attr);
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58 if extra ~= nil then
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59 if extra.session then
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60 local child = session_extra(extra.session);
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61 if child then
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62 stanza:add_child(child);
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63 end
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64 end
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65 if extra.custom then
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66 for _, child in extra.custom do
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67 if not st.is_stanza(child) then
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68 error("all extra.custom items must be stanzas")
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69 end
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70 stanza:add_child(child);
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71 end
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72 end
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73 end
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74
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75 local id, err = stores[host]:append(nil, nil, stanza, time_now(), user_key);
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76 if err then
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77 module:log("error", "failed to persist audit event: %s", err);
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78 return
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79 else
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80 module:log("debug", "persisted audit event %s as %s", stanza:top_tag(), id);
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81 end
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82 end
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83
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84 function moduleapi.audit(module, user, event_type, extra)
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85 audit(module.host, user, "mod_" .. module:get_name(), event_type, extra);
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86 end