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annotate mod_vcard_muc/mod_vcard_muc.lua @ 3043:6cc44e69443a

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mod_vcard_muc: Initial commit
author Michel Le Bihan <michel@lebihan.pl>
date Thu, 24 May 2018 20:27:48 +0200
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children d0db28768980
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3043
6cc44e69443a mod_vcard_muc: Initial commit
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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 local get_room_from_jid = mod_muc.get_room_from_jid;
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17
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18 local vcards = module:open_store();
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19
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20 module:add_feature("vcard-temp");
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21
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22 local function broadcast_presence(room_jid, to)
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23 local room = get_room_from_jid(room_jid);
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24 local room_node = jid_split(room_jid);
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25 local vcard = st.deserialize(vcards:get(room_node));
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26 local photo_hash;
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27
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28 if vcard then
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29 local photo = vcard:get_child("PHOTO");
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30
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31 if photo then
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32 local photo_b64 = photo:get_child_text("BINVAL");
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33 local photo_raw = photo_b64 and base64.decode(photo_b64);
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34 photo_hash = sha1(photo_raw, true);
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35 end
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36 end
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37
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38 local presence_vcard = st.presence({to = to, from = room_jid})
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39 :tag("x", { xmlns = "vcard-temp:x:update" })
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40 :tag("photo"):text(photo_hash):up();
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41
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42 if to == nil then
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43 room:broadcast_message(presence_vcard);
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44 else
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45 module:send(presence_vcard);
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46 end
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47 end
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48
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49 local function handle_vcard(event)
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50 local session, stanza = event.origin, event.stanza;
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51
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52 local room_jid = stanza.attr.to;
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53 local room_node = jid_split(room_jid);
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54 local room = get_room_from_jid(room_jid);
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55
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56 local from = stanza.attr.from;
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57 local from_affiliation = room:get_affiliation(from);
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58
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59 if stanza.attr.type == "get" then
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60 local vCard;
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61 vCard = st.deserialize(vcards:get(room_node));
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62
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63 if vCard then
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64 session.send(st.reply(stanza):add_child(vCard)); -- send vCard!
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65 else
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66 session.send(st.error_reply(stanza, "cancel", "item-not-found"));
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67 end
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68 else
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69 if from_affiliation == "owner" then
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70 if vcards:set(room_node, st.preserialize(stanza.tags[1])) then
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71 session.send(st.reply(stanza):tag("vCard", { xmlns = "vcard-temp" }));
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72 broadcast_presence(room_jid, nil)
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73 else
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74 -- TODO unable to write file, file may be locked, etc, what's the correct error?
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75 session.send(st.error_reply(stanza, "wait", "internal-server-error"));
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76 end
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77 else
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78 session.send(st.error_reply(stanza, "auth", "forbidden"));
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79 end
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80 end
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81 return true;
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82 end
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83
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84
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85 module:hook("iq/bare/vcard-temp:vCard", handle_vcard);
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86 module:hook("iq/host/vcard-temp:vCard", handle_vcard);
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87
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88 module:hook("muc-disco#info", function(event)
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89 event.reply:tag("feature", { var = "vcard-temp" }):up();
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90 broadcast_presence(event.room.jid, event.reply.attr.to);
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91 end);