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annotate mod_pep_vcard_avatar/mod_pep_vcard_avatar.lua @ 2955:6140f9a03094

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mod_http_logging: Add some short documentation
author Kim Alvefur <zash@zash.se>
date Tue, 27 Mar 2018 09:56:01 +0200
parents 6f3859233515
children 4eff14ac6853
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21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
1 -- Prosody IM
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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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933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
5 -- Copyright (c) 2018 Daniel Gultsch
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6 --
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7 -- This project is MIT/X11 licensed. Please see the
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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8 -- COPYING file in the source package for more information.
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9 --
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10
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11 local st = require "util.stanza"
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12 local jid = require "util.jid";
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13 local base64 = require"util.encodings".base64;
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14 local sha1 = require"util.hashes".sha1;
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15
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16 local mod_pep = module:depends"pep";
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17 local pep_data = mod_pep.module.save().data;
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18
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19 module:add_feature("http://prosody.im/protocol/vcard-pep-integration");
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20 module:depends"vcard";
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21 local vcard_storage = module:open_store("vcard");
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22
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23 local function get_vcard(username)
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24 local vcard, err = vcard_storage:get(username);
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25 if vcard then
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26 vcard = st.deserialize(vcard);
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27 end
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28 if not vcard then
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29 vcard = st.stanza("vCard", { xmlns = "vcard-temp" });
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30 end
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31 return vcard, err;
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32 end
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33
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34 local function replace_tag(s, replacement)
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35 local once = false;
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36 s:maptags(function (tag)
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37 if tag.name == replacement.name and tag.attr.xmlns == replacement.attr.xmlns then
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38 if not once then
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39 once = true;
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40 return replacement;
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41 else
c1ecc3bc88fa mod_pep_vcard_avatar: Replace PHOTO and NICKNAME tags instead of modifying them in-place
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42 return nil;
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43 end
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44 end
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45 return tag;
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46 end);
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47 if not once then
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48 s:add_child(replacement);
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49 end
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50 end
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51
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52 local function set_vcard(username, vcard)
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53 if vcard then
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54 vcard = st.preserialize(st.clone(vcard));
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55 end
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56 return vcard_storage:set(username, vcard);
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57 end
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58
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59 local function publish(session, node, id, item)
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60 return module:fire_event("pep-publish-item", {
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61 actor = true, user = jid.bare(session.full_jid), session = session, node = node, id = id, item = item;
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62 });
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63 end
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64
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65 -- vCard -> PEP
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66 local function update_pep(session, vcard)
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d9e91240a2dd mod_pep_vcard_avatar: Return early if no vcard is given
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67 if not vcard then return end
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68 local nickname = vcard:get_child_text("NICKNAME");
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69 if nickname then
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70 publish(session, "http://jabber.org/protocol/nick", "current", st.stanza("item", {id="current"})
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71 :tag("nick", { xmlns="http://jabber.org/protocol/nick" }):text(nickname));
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72 end
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73
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74 local photo = vcard:get_child("PHOTO");
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75 if photo then
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76 local photo_type = photo:get_child_text("TYPE");
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77 local photo_b64 = photo:get_child_text("BINVAL");
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78 local photo_raw = photo_b64 and base64.decode(photo_b64);
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79 if photo_raw and photo_type then -- Else invalid data or encoding
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80 local photo_hash = sha1(photo_raw, true);
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81
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82 publish(session, "urn:xmpp:avatar:data", photo_hash, st.stanza("item", {id=photo_hash})
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83 :tag("data", { xmlns="urn:xmpp:avatar:data" }):text(photo_b64));
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84 publish(session, "urn:xmpp:avatar:metadata", photo_hash, st.stanza("item", {id=photo_hash})
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85 :tag("metadata", { xmlns="urn:xmpp:avatar:metadata" })
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Kim Alvefur <zash@zash.se>
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86 :tag("info", { id = photo_hash, bytes = tostring(#photo_raw), type = photo_type,}));
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Kim Alvefur <zash@zash.se>
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87 end
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88 end
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89 end
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90
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Kim Alvefur <zash@zash.se>
parents:
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91 local function handle_vcard(event)
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Kim Alvefur <zash@zash.se>
parents:
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92 local session, stanza = event.origin, event.stanza;
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93 if not stanza.attr.to and stanza.attr.type == "set" then
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Kim Alvefur <zash@zash.se>
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94 return update_pep(session, stanza:get_child("vCard", "vcard-temp"));
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95 end
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96 end
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97
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98 module:hook("iq/bare/vcard-temp:vCard", handle_vcard, 1);
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99
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100 -- PEP Avatar -> vCard
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Kim Alvefur <zash@zash.se>
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101 local function on_publish_metadata(event)
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102 local username = event.session.username;
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103 local metadata = event.item:find("{urn:xmpp:avatar:metadata}metadata/info");
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Kim Alvefur <zash@zash.se>
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104 if not metadata then
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105 module:log("error", "No info found");
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106 module:log("debug", event.item:top_tag());
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107 return;
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108 end
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109 module:log("debug", metadata:top_tag());
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
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110 local user_data = pep_data[username.."@"..module.host];
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Kim Alvefur <zash@zash.se>
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111 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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112 pep_photo = pep_photo and pep_photo[1] == metadata.attr.id and pep_photo[2];
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Kim Alvefur <zash@zash.se>
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113 if not pep_photo then
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Kim Alvefur <zash@zash.se>
parents:
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114 module:log("error", "No photo found");
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115 return;
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Kim Alvefur <zash@zash.se>
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116 end -- Publishing in the wrong order?
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Kim Alvefur <zash@zash.se>
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117 local vcard = get_vcard(username);
2150
c1ecc3bc88fa mod_pep_vcard_avatar: Replace PHOTO and NICKNAME tags instead of modifying them in-place
Kim Alvefur <zash@zash.se>
parents: 2149
diff changeset
118 local new_photo = st.stanza("PHOTO", { xmlns = "vcard-temp" })
2151
96aca307964b mod_pep_vcard_avatar: Fix typo [luacheck]
Kim Alvefur <zash@zash.se>
parents: 2150
diff changeset
119 :tag("TYPE"):text(metadata.attr.type):up()
2150
c1ecc3bc88fa mod_pep_vcard_avatar: Replace PHOTO and NICKNAME tags instead of modifying them in-place
Kim Alvefur <zash@zash.se>
parents: 2149
diff changeset
120 :tag("BINVAL"):text(pep_photo:get_child_text("data", "urn:xmpp:avatar:data"));
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Kim Alvefur <zash@zash.se>
parents: 2149
diff changeset
121
c1ecc3bc88fa mod_pep_vcard_avatar: Replace PHOTO and NICKNAME tags instead of modifying them in-place
Kim Alvefur <zash@zash.se>
parents: 2149
diff changeset
122 replace_tag(vcard, new_photo);
1591
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
123 set_vcard(username, vcard);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
124 end
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
125
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
126 -- PEP Nickname -> vCard
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
127 local function on_publish_nick(event)
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
128 local username = event.session.username;
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
129 local vcard = get_vcard(username);
2150
c1ecc3bc88fa mod_pep_vcard_avatar: Replace PHOTO and NICKNAME tags instead of modifying them in-place
Kim Alvefur <zash@zash.se>
parents: 2149
diff changeset
130 local new_nick = st.stanza("NICKNAME", { xmlns = "vcard-temp" })
c1ecc3bc88fa mod_pep_vcard_avatar: Replace PHOTO and NICKNAME tags instead of modifying them in-place
Kim Alvefur <zash@zash.se>
parents: 2149
diff changeset
131 :text(event.item:get_child_text("nick", "http://jabber.org/protocol/nick"));
c1ecc3bc88fa mod_pep_vcard_avatar: Replace PHOTO and NICKNAME tags instead of modifying them in-place
Kim Alvefur <zash@zash.se>
parents: 2149
diff changeset
132 replace_tag(vcard, new_nick);
1591
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
133 set_vcard(username, vcard);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
134 end
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
135
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
136 local function on_publish(event)
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
137 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
138 local node = event.node;
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
139 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
140 return on_publish_metadata(event);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
141 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
142 return on_publish_nick(event);
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
143 end
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
144 end
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
145
21e439ca7208 mod_pep_vcard_avatar: Syncs avatars between PEP and vCard
Kim Alvefur <zash@zash.se>
parents:
diff changeset
146 module:hook("pep-publish-item", on_publish, 1);
2862
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
147
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
148 local function calculate_avatar_hash(username)
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
149 local vcard = get_vcard(username)
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
150 local photo = vcard and vcard:get_child("PHOTO")
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
151 if photo then
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
152 local photo_type = photo:get_child_text("TYPE");
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
153 local photo_b64 = photo:get_child_text("BINVAL");
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
154 local photo_raw = photo_b64 and base64.decode(photo_b64);
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
155 if photo_raw and photo_type then
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
156 return sha1(photo_raw, true);
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
157 end
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
158 end
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
159 return ""
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
160 end
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
161
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
162 local function get_avatar_hash(username, host)
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
163 local session = prosody.hosts[host] and prosody.hosts[host].sessions[username]
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
164 if not session then
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
165 return nil
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
166 end
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
167 if not session.avatar_hash then
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
168 session.avatar_hash = calculate_avatar_hash(username)
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
169 end
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
170 return session.avatar_hash
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
171 end
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
172
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
173 local function on_send_presence(event)
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
174 local stanza, session = event.stanza, event.origin
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
175 if stanza.attr.type then
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
176 return
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
177 end
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
178 local hash = get_avatar_hash(session.username, session.host)
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
179 if hash and hash ~= "" then
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
180 local x_vcard_update = stanza:get_child("x","vcard-temp:x:update")
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
181 if not x_vcard_update then
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
182 x_vcard_update = st.stanza("x",{xmlns="vcard-temp:x:update"})
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
183 stanza:add_child(x_vcard_update)
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
184 end
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
185 local photo = x_vcard_update:get_child("photo")
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
186 if not photo then
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
187 photo = st.stanza("photo")
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
188 photo:text(hash)
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
189 x_vcard_update:add_child(photo)
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
190 end
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
191 end
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
192 end
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
193
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
194 module:hook("pre-presence/full", on_send_presence)
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
195 module:hook("pre-presence/bare", on_send_presence)
933049a60ce6 mod_pep_vcard_avatar: annouce avatar hash in presence if client does not
Daniel Gultsch <daniel@gultsch.de>
parents: 2206
diff changeset
196 module:hook("pre-presence/host", on_send_presence)