annotate mod_pep_vcard_avatar/mod_pep_vcard_avatar.lua @ 1591:21e439ca7208

mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
author Kim Alvefur <zash@zash.se>
date Sun, 18 Jan 2015 01:21:53 +0100
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children d9e91240a2dd
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1591
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
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1 -- Prosody IM
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
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2 -- Copyright (C) 2008-2014 Matthew Wild
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3 -- Copyright (C) 2008-2014 Waqas Hussain
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4 -- Copyright (C) 2014 Kim Alvefur
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5 --
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
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6 -- This project is MIT/X11 licensed. Please see the
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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7 -- COPYING file in the source package for more information.
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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8 --
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9
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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10 local st = require "util.stanza"
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11 local base64 = require"util.encodings".base64;
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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12 local sha1 = require"util.hashes".sha1;
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13
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Kim Alvefur <zash@zash.se>
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14 local mod_pep = module:depends"pep";
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15 local pep_data = mod_pep.module.save().data;
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16
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17 module:add_feature("http://prosody.im/protocol/vcard-pep-integration");
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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18 module:depends"vcard";
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19 local vcard_storage = module:open_store("vcard");
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20
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21 local function get_vcard(username)
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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22 local vcard, err = vcard_storage:get(username);
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23 if vcard then
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24 vcard = st.deserialize(vcard);
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25 end
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Kim Alvefur <zash@zash.se>
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26 if not vcard then
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27 vcard = st.stanza("vCard", { xmlns = "vcard-temp" });
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28 end
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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29 return vcard, err;
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30 end
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31
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32 local function set_vcard(username, vcard)
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33 if vcard then
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34 vcard = st.preserialize(st.clone(vcard));
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35 end
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36 return vcard_storage:set(username, vcard);
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37 end
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38
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39 local function publish(session, node, id, item)
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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40 return module:fire_event("pep-publish-item", {
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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41 actor = true, session = session, node = node, id = id, item = item;
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42 });
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43 end
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44
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Kim Alvefur <zash@zash.se>
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45 -- vCard -> PEP
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Kim Alvefur <zash@zash.se>
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46 local function update_pep(session, vcard)
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
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47 local nickname = vcard and vcard:get_child_text("NICKNAME");
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48 if nickname then
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49 publish(session, "http://jabber.org/protocol/nick", "current", st.stanza("item", {id="current"})
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50 :tag("nick", { xmlns="http://jabber.org/protocol/nick" }):text(nickname));
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51 end
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52
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53 local photo = vcard and vcard:get_child("PHOTO");
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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54 if photo then
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55 local photo_type = photo:get_child_text("TYPE");
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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56 local photo_b64 = photo:get_child_text("BINVAL");
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
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57 local photo_raw = photo_b64 and base64.decode(photo_b64);
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
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58 if photo_raw and photo_type then -- Else invalid data or encoding
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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59 local photo_hash = sha1(photo_raw, true);
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60
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Kim Alvefur <zash@zash.se>
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61 publish(session, "urn:xmpp:avatar:data", photo_hash, st.stanza("item", {id=photo_hash})
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Kim Alvefur <zash@zash.se>
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62 :tag("data", { xmlns="urn:xmpp:avatar:data" }):text(photo_b64));
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
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63 publish(session, "urn:xmpp:avatar:metadata", photo_hash, st.stanza("item", {id=photo_hash})
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Kim Alvefur <zash@zash.se>
parents:
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64 :tag("metadata", { xmlns="urn:xmpp:avatar:metadata" })
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
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65 :tag("info", { id = photo_hash, bytes = tostring(#photo_raw), type = photo_type,}));
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66 end
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67 end
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68 end
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69
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Kim Alvefur <zash@zash.se>
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70 local function handle_vcard(event)
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parents:
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71 local session, stanza = event.origin, event.stanza;
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
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72 if not stanza.attr.to and stanza.attr.type == "set" then
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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73 return update_pep(session, stanza:get_child("vCard", "vcard-temp"));
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74 end
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75 end
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76
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77 module:hook("iq/bare/vcard-temp:vCard", handle_vcard, 1);
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78
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79 -- PEP Avatar -> vCard
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80 local function on_publish_metadata(event)
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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81 local username = event.session.username;
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82 local metadata = event.item:find("{urn:xmpp:avatar:metadata}metadata/info");
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diff changeset
83 if not metadata then
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84 module:log("error", "No info found");
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85 module:log("debug", event.item:top_tag());
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86 return;
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87 end
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88 module:log("debug", metadata:top_tag());
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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89 local user_data = pep_data[username.."@"..module.host];
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
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90 local pep_photo = user_data["urn:xmpp:avatar:data"];
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
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diff changeset
91 pep_photo = pep_photo and pep_photo[1] == metadata.attr.id and pep_photo[2];
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
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diff changeset
92 if not pep_photo then
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diff changeset
93 module:log("error", "No photo found");
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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94 return;
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95 end -- Publishing in the wrong order?
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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96 local vcard = get_vcard(username);
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97 local old_photo = vcard:get_child("PHOTO");
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98 if old_photo then
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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99 local photo_type = old_photo:get_child("TYPE");
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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100 photo_type[1] = metadata.attr.type;
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101 local photo_b64 = old_photo:get_child("BINVAL");
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102 photo_b64[1] = pep_photo:get_child_text("data", "urn:xmpp:avatar:data");
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103 end
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104 set_vcard(username, vcard);
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105 end
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106
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107 -- PEP Nickname -> vCard
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108 local function on_publish_nick(event)
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109 local username = event.session.username;
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110 local vcard = get_vcard(username);
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111 local new_nick = event.item:get_child_text("nick", "http://jabber.org/protocol/nick");
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112 local old_nick = vcard:get_child("NICKNAME");
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113 if not old_nick then
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114 vcard:tag("NICKNAME"):text(new_nick);
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115 elseif old_nick[1] ~= new_nick then
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116 old_nick[1] = new_nick;
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117 else
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118 return -- no change
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119 end
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
120 set_vcard(username, vcard);
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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parents:
diff changeset
121 end
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
122
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
123 local function on_publish(event)
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
124 if event.actor == true then return end -- Not from a client
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
125 local node = event.node;
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
126 if node == "urn:xmpp:avatar:metadata" then
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
127 return on_publish_metadata(event);
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
128 elseif node == "http://jabber.org/protocol/nick" then
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
129 return on_publish_nick(event);
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
130 end
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
131 end
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
132
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
133 module:hook("pep-publish-item", on_publish, 1);