prosody-modules
8e1f1eb00b58
mod_vcard_muc/mod_vcard_muc.lua

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mod_vcard_muc/mod_vcard_muc.lua @ 5285:8e1f1eb00b58

mod_sasl2_fast: Fix harmless off-by-one error (invalidates existing tokens!) Problem: This was causing the key to become "<token>--cur" instead of the expected "<token>-cur". As the same key was used by the code to both set and get, it still worked. Rationale for change: Although it worked, it's unintended, inconsistent and messy. It increases the chances of future bugs due to the unexpected format. Side-effects of change: Existing '--cur' entries will not be checked after this change, and therefore existing FAST clients will fail to authenticate until they attempt password auth and obtain a new FAST token. Existing '--cur' entries in storage will not be cleaned up by this commit, but this is considered a minor issue, and okay for the relatively few FAST deployments.
author Matthew Wild <mwild1@gmail.com>
date Wed, 29 Mar 2023 16:12:15 +0100
parent 4300:3f3b672b7616
child 5290:dddac5a3f447
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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 -- Copyright (C) 2018 Michel Le Bihan
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5 --
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6 -- This project is MIT/X11 licensed. Please see the
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7 -- COPYING file in the source package for more information.
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8 --
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9
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10 local st = require "util.stanza"
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11 local jid_split = require "util.jid".split;
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12 local base64 = require"util.encodings".base64;
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13 local sha1 = require"util.hashes".sha1;
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14
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15 local mod_muc = module:depends"muc";
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16
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17 local vcards = module:open_store();
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18
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19 module:add_feature("vcard-temp");
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20
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21 local get_room_from_jid = rawget(mod_muc, "get_room_from_jid") or
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22 function (jid)
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23 local rooms = rawget(mod_muc, "rooms");
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24 return rooms[jid];
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25 end
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26
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27 local function get_photo_hash(room)
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28 local room_node = jid_split(room.jid);
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29 local vcard = st.deserialize(vcards:get(room_node));
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30 if vcard then
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31 local photo = vcard:get_child("PHOTO");
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32
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33 if photo then
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34 local photo_b64 = photo:get_child_text("BINVAL");
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35 local photo_raw = photo_b64 and base64.decode(photo_b64);
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36 return sha1(photo_raw, true);
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37 end
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38 end
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39
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40 end
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41
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42 local function broadcast_presence(room, to)
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43 local photo_hash = get_photo_hash(room);
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44 local presence_vcard = st.presence({to = to, from = room.jid})
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45 :tag("x", { xmlns = "vcard-temp:x:update" })
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46 :tag("photo"):text(photo_hash):up();
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47
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48 if to == nil then
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49 room:broadcast_message(presence_vcard);
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50 else
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51 module:send(presence_vcard);
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52 end
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53 end
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54
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55 local function handle_vcard(event)
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56 local session, stanza = event.origin, event.stanza;
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57
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58 local room_jid = stanza.attr.to;
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59 local room_node = jid_split(room_jid);
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60 local room = get_room_from_jid(room_jid);
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61 if not room then
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62 session.send(st.error_reply(stanza, "cancel", "item-not-found"))
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63 return true;
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64 end
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65
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66 local from = stanza.attr.from;
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67 local from_affiliation = room:get_affiliation(from);
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68
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69 if stanza.attr.type == "get" then
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70 local vCard;
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71 vCard = st.deserialize(vcards:get(room_node));
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72
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73 if vCard then
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74 session.send(st.reply(stanza):add_child(vCard)); -- send vCard!
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75 else
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76 session.send(st.error_reply(stanza, "cancel", "item-not-found"));
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77 end
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78 else
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79 if from_affiliation == "owner" then
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80 if vcards:set(room_node, st.preserialize(stanza.tags[1])) then
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81 session.send(st.reply(stanza):tag("vCard", { xmlns = "vcard-temp" }));
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82 broadcast_presence(room, nil)
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83
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84 room:broadcast_message(st.message({ from = room.jid, type = "groupchat" })
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85 :tag("x", { xmlns = "http://jabber.org/protocol/muc#user" })
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86 :tag("status", { code = "104" }));
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87 else
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88 -- TODO unable to write file, file may be locked, etc, what's the correct error?
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89 session.send(st.error_reply(stanza, "wait", "internal-server-error"));
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90 end
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91 else
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92 session.send(st.error_reply(stanza, "auth", "forbidden"));
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93 end
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94 end
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95 return true;
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96 end
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97
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98
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99 module:hook("iq/bare/vcard-temp:vCard", handle_vcard);
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100 module:hook("iq/host/vcard-temp:vCard", handle_vcard);
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101
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102 module:hook("muc-disco#info", function(event)
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103 event.reply:tag("feature", { var = "vcard-temp" }):up();
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104
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105 table.insert(event.form, {
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106 name = "{http://modules.prosody.im/mod_vcard_muc}avatar#sha1",
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107 type = "text-single",
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108 });
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109 event.formdata["{http://modules.prosody.im/mod_vcard_muc}avatar#sha1"] = get_photo_hash(event.room);
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110 end);
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111
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112 module:hook("muc-occupant-session-new", function(event)
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113 broadcast_presence(event.room, event.jid);
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114 end)