prosody-modules
f69233c3e0c0
mod_vcard_muc/mod_vcard_muc.lua

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mod_vcard_muc/mod_vcard_muc.lua @ 3301:f69233c3e0c0

merge
author Kim Alvefur <zash@zash.se>
date Sat, 08 Sep 2018 11:37:38 +0200
parent 3077:f16b021e8a61
child 3655:d7b589dec591
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Michel Le Bihan <michel@lebihan.pl>
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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 broadcast_presence(room_jid, to)
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28 local room = get_room_from_jid(room_jid);
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29 local room_node = jid_split(room_jid);
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30 local vcard = st.deserialize(vcards:get(room_node));
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31 local photo_hash;
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32
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33 if vcard then
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34 local photo = vcard:get_child("PHOTO");
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35
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36 if photo then
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37 local photo_b64 = photo:get_child_text("BINVAL");
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38 local photo_raw = photo_b64 and base64.decode(photo_b64);
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39 photo_hash = sha1(photo_raw, true);
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40 end
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41 end
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42
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43 local presence_vcard = st.presence({to = to, from = room_jid})
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44 :tag("x", { xmlns = "vcard-temp:x:update" })
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45 :tag("photo"):text(photo_hash):up();
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46
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47 if to == nil then
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48 room:broadcast_message(presence_vcard);
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49 else
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50 module:send(presence_vcard);
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51 end
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52 end
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53
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54 local function handle_vcard(event)
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55 local session, stanza = event.origin, event.stanza;
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56
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57 local room_jid = stanza.attr.to;
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58 local room_node = jid_split(room_jid);
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59 local room = get_room_from_jid(room_jid);
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60
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61 local from = stanza.attr.from;
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62 local from_affiliation = room:get_affiliation(from);
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63
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64 if stanza.attr.type == "get" then
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65 local vCard;
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66 vCard = st.deserialize(vcards:get(room_node));
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67
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68 if vCard then
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69 session.send(st.reply(stanza):add_child(vCard)); -- send vCard!
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70 else
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71 session.send(st.error_reply(stanza, "cancel", "item-not-found"));
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72 end
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73 else
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74 if from_affiliation == "owner" then
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75 if vcards:set(room_node, st.preserialize(stanza.tags[1])) then
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76 session.send(st.reply(stanza):tag("vCard", { xmlns = "vcard-temp" }));
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77 broadcast_presence(room_jid, nil)
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78 else
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79 -- TODO unable to write file, file may be locked, etc, what's the correct error?
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80 session.send(st.error_reply(stanza, "wait", "internal-server-error"));
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81 end
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82 else
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83 session.send(st.error_reply(stanza, "auth", "forbidden"));
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84 end
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85 end
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86 return true;
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87 end
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88
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89
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90 module:hook("iq/bare/vcard-temp:vCard", handle_vcard);
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91 module:hook("iq/host/vcard-temp:vCard", handle_vcard);
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92
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93 module:hook("muc-disco#info", function(event)
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94 event.reply:tag("feature", { var = "vcard-temp" }):up();
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95 end);
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96
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97 module:hook("muc-occupant-session-new", function(event)
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98 broadcast_presence(event.room.jid, event.jid);
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99 end)