Mercurial > prosody-modules

annotate mod_groups_muc_bookmarks/mod_groups_muc_bookmarks.lua @ 5616:59d5fc50f602

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mod_http_oauth2: Implement refresh token rotation Makes refresh tokens one-time-use, handing out a new refresh token with each access token. Thus if a refresh token is stolen and used by an attacker, the next time the legitimate client tries to use the previous refresh token, it will not work and the attack will be noticed. If the attacker does not use the refresh token, it becomes invalid after the legitimate client uses it. This behavior is recommended by draft-ietf-oauth-security-topics
author Kim Alvefur <zash@zash.se>
date Sun, 23 Jul 2023 02:56:08 +0200
parents fdf50c4d23a3
children d5ff386dc97f
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1 local jid_split = require "util.jid".split;
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2
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3 local st = require "util.stanza";
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4
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5 local mod_groups = module:depends("groups_internal")
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6 local mod_pep = module:depends("pep")
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7
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8 local XMLNS_BM2 = "urn:xmpp:bookmarks:1";
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9 local XMLNS_XEP0060 = "http://jabber.org/protocol/pubsub";
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10
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11 local default_options = {
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12 ["persist_items"] = true;
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13 ["max_items"] = "max";
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14 ["send_last_published_item"] = "never";
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15 ["access_model"] = "whitelist";
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16 };
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17
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18 local function get_current_bookmarks(jid, service)
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19 local ok, items = service:get_items(XMLNS_BM2, jid)
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20 if not ok then
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21 if items == "item-not-found" then
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22 return {}, nil;
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23 else
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24 return nil, items;
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25 end
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26 end
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27 return items or {};
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28 end
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29
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30 local function update_bookmark(jid, service, room, bookmark)
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31 local ok, err = service:publish(XMLNS_BM2, jid, room, bookmark, default_options);
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32 if ok then
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33 module:log("debug", "found existing matching bookmark, updated")
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34 else
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35 module:log("error", "failed to update bookmarks: %s", err)
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36 end
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37 end
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38
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39 local function find_matching_bookmark(storage, room)
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40 return storage[room];
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41 end
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42
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43 local function inject_bookmark(jid, room, autojoin, name)
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44 local pep_service = mod_pep.get_pep_service(jid_split(jid))
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45
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46 local current, err = get_current_bookmarks(jid, pep_service);
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47 if err then
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48 module:log("error", "Could not retrieve existing bookmarks for %s: %s", jid, err);
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49 return;
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50 end
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51 local found = find_matching_bookmark(current, room)
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52 if found then
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53 local existing = found:get_child("conference", XMLNS_BM2);
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54 if autojoin ~= nil then
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55 existing.attr.autojoin = autojoin and "true" or "false"
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56 end
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57 if name ~= nil then
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58 -- do not change already configured names
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59 if not existing.attr.name then
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60 existing.attr.name = name
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61 end
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62 end
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63 else
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64 module:log("debug", "no existing bookmark found, adding new")
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65 found = st.stanza("item", { xmlns = XMLNS_XEP0060; id = room })
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66 :tag("conference", { xmlns = XMLNS_BM2; name = name; autojoin = autojoin and "true" or "false"; })
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67 end
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68
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69 update_bookmark(jid, pep_service, room, found)
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70 end
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71
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72 local function remove_bookmark(jid, room, autojoin, name)
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73 local pep_service = mod_pep.get_pep_service(jid_split(jid))
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74
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75 return pep_service:retract(XMLNS_BM2, jid, room, st.stanza("retract", { id = room }));
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76 end
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77
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78 local function handle_user_added(event)
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79 if not event.group_info.muc_jid then
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80 module:log("debug", "ignoring user added event on group %s because it has no MUC", event.id)
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81 return
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82 end
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83 local jid = event.user .. "@" .. event.host
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84 inject_bookmark(jid, event.group_info.muc_jid, true, event.group_info.name)
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85 end
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86
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87 local function handle_user_removed(event)
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88 if not event.group_info.muc_jid then
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89 module:log("debug", "ignoring user removed event on group %s because it has no MUC", event.id)
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90 return
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91 end
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92 -- Removing the bookmark is fine as the user just lost any privilege to
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93 -- be in the MUC (as group MUCs are members-only).
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94 local jid = event.user .. "@" .. event.host
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95 remove_bookmark(jid, event.group_info.muc_jid, true, event.group_info.name)
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96 end
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97
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98 module:hook("group-user-added", handle_user_added)
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99 module:hook("group-user-removed", handle_user_removed)