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mod_profile/mod_profile.lua @ 3029:7878dc2dbf59
mod_pastebin: Avoid using pattern matching facilities for simple prefix removal
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 20 May 2018 17:51:08 +0200 |
parent | 2790:5163f7905371 |
child | 3181:1f2272cda0d7 |
rev | line source |
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1419
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mod_profile: Replacement for mod_vcard with vcard4 support and integration with mod_pep_plus
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1 -- mod_profile |
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2 |
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3 local st = require"util.stanza"; |
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4 local jid_split = require"util.jid".split; |
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5 local jid_bare = require"util.jid".bare; |
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6 local is_admin = require"core.usermanager".is_admin; |
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7 local vcard = require"util.vcard"; |
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8 local base64 = require"util.encodings".base64; |
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9 local sha1 = require"util.hashes".sha1; |
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mod_profile: Don't include photo in vCard4 version (use XEP-0084 instead)
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10 local t_insert, t_remove = table.insert, table.remove; |
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11 |
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12 local pep_plus; |
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mod_profile: Integrate with mod_pep_plus by default
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13 if module:get_host_type() == "local" and module:get_option_boolean("vcard_to_pep", true) then |
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14 pep_plus = module:depends"pep_plus"; |
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15 end |
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16 |
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17 local storage = module:open_store(); |
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18 local legacy_storage = module:open_store("vcard"); |
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19 |
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20 local function get_item(vcard, name) |
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21 local item; |
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22 for i=1, #vcard do |
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23 item=vcard[i]; |
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24 if item.name == name then |
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25 return item, i; |
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26 end |
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27 end |
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28 end |
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29 |
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30 local magic_mime = { |
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31 ["\137PNG\r\n\026\n"] = "image/png"; |
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32 ["\255\216"] = "image/jpeg"; |
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33 ["GIF87a"] = "image/gif"; |
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34 ["GIF89a"] = "image/gif"; |
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35 ["<?xml"] = "image/svg+xml"; |
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36 } |
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37 local function identify(data) |
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38 for magic, mime in pairs(magic_mime) do |
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39 if data:sub(1, #magic) == magic then |
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40 return mime; |
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41 end |
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42 end |
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43 return "application/octet-stream"; |
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44 end |
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45 |
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46 local function update_pep(username, data, pep) |
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47 pep = pep or pep_plus.get_pep_service(username); |
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48 local photo, p = get_item(data, "PHOTO"); |
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49 if vcard.to_vcard4 then |
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50 if p then t_remove(data, p); end |
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51 pep:purge("urn:xmpp:vcard4", true); |
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52 pep:publish("urn:xmpp:vcard4", true, "current", st.stanza("item", {id="current"}) |
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53 :add_child(vcard.to_vcard4(data))); |
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54 if p then t_insert(data, p, photo); end |
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55 end |
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56 |
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57 local nickname = get_item(data, "NICKNAME"); |
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58 if nickname and nickname[1] then |
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59 pep:purge("http://jabber.org/protocol/nick", true); |
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60 pep:publish("http://jabber.org/protocol/nick", true, "current", st.stanza("item", {id="current"}) |
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61 :tag("nick", { xmlns="http://jabber.org/protocol/nick" }):text(nickname[1])); |
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62 end |
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63 |
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64 if photo and photo[1] then |
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65 local photo_raw = base64.decode(photo[1]); |
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66 local photo_hash = sha1(photo_raw, true); |
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67 |
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68 pep:purge("urn:xmpp:avatar:metadata", true); |
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69 pep:purge("urn:xmpp:avatar:data", true); |
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70 pep:publish("urn:xmpp:avatar:metadata", true, photo_hash, st.stanza("item", {id=photo_hash}) |
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71 :tag("metadata", { xmlns="urn:xmpp:avatar:metadata" }) |
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72 :tag("info", { |
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73 bytes = tostring(#photo_raw), |
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74 id = photo_hash, |
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75 type = identify(photo_raw), |
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76 })); |
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77 pep:publish("urn:xmpp:avatar:data", true, photo_hash, st.stanza("item", {id=photo_hash}) |
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78 :tag("data", { xmlns="urn:xmpp:avatar:data" }):text(photo[1])); |
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79 end |
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80 end |
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81 |
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82 -- The "temporary" vCard XEP-0054 part |
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83 module:add_feature("vcard-temp"); |
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84 |
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85 local function handle_get(event) |
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86 local origin, stanza = event.origin, event.stanza; |
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87 local username = origin.username; |
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88 local to = stanza.attr.to; |
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89 if to then username = jid_split(to); end |
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90 local data, err = storage:get(username); |
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91 if not data then |
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92 if err then |
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93 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", err)); |
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94 return true; |
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95 end |
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96 data = legacy_storage:get(username); |
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97 data = data and st.deserialize(data); |
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98 if data then |
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99 origin.send(st.reply(stanza):add_child(data)); |
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100 return true; |
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101 end |
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102 end |
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103 if not data then |
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104 origin.send(st.error_reply(stanza, "cancel", "item-not-found")); |
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105 return true; |
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106 end |
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107 origin.send(st.reply(stanza):add_child(vcard.to_xep54(data))); |
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108 return true; |
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109 end |
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110 |
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111 local function handle_set(event) |
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112 local origin, stanza = event.origin, event.stanza; |
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113 local data = vcard.from_xep54(stanza.tags[1]); |
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114 local username = origin.username; |
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115 local to = stanza.attr.to; |
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116 if to then |
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117 if not is_admin(jid_bare(stanza.attr.from), module.host) then |
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118 origin.send(st.error_reply(stanza, "auth", "forbidden")); |
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119 return true; |
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120 end |
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121 username = jid_split(to); |
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122 end |
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123 local ok, err = storage:set(username, data); |
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124 if not ok then |
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125 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", err)); |
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126 return true; |
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127 end |
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128 |
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129 if pep_plus and username then |
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130 update_pep(username, data); |
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131 end |
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132 |
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133 origin.send(st.reply(stanza)); |
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134 return true; |
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135 end |
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136 |
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137 module:hook("iq-get/bare/vcard-temp:vCard", handle_get); |
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138 module:hook("iq-get/host/vcard-temp:vCard", handle_get); |
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139 |
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140 module:hook("iq-set/bare/vcard-temp:vCard", handle_set); |
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141 module:hook("iq-set/host/vcard-temp:vCard", handle_set); |
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142 |
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143 local function on_publish(event) |
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144 if event.actor == true then return end -- Not from a client |
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145 local node, item = event.node, event.item; |
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146 local username, host = jid_split(event.actor); |
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147 if host ~= module.host then |
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148 module:log("warn", "on_publish() called for non-local actor"); |
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149 for k,v in pairs(event) do |
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150 module:log("debug", "event[%q] = %q", tosting(k), tostring(v)); |
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151 end |
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152 return; |
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153 end |
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154 local data = storage:get(username) or {}; |
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155 if node == "urn:xmpp:avatar:data" then |
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156 local new_photo = item:get_child_text("data", "urn:xmpp:avatar:data"); |
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157 new_photo = new_photo and { name = "PHOTO"; ENCODING = { "b" }; new_photo } or nil; |
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158 local _, i = get_item(data, "PHOTO") |
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159 if new_photo then |
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160 data[i or #data+1] = new_photo; |
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161 elseif i then |
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162 table.remove(data, i); |
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163 end |
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164 elseif node == "http://jabber.org/protocol/nick" then |
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165 local new_nick = item:get_child_text("nick", "http://jabber.org/protocol/nick"); |
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166 new_nick = new_nick and new_nick ~= "" and { name = "NICKNAME"; new_nick } or nil; |
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167 local _, i = get_item(data, "NICKNAME") |
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168 if new_nick then |
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169 data[i or #data+1] = new_nick; |
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170 elseif i then |
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171 table.remove(data, i); |
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172 end |
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173 else |
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174 return; |
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175 end |
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176 storage:set(username, data); |
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177 end |
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178 |
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179 local function pep_service_added(event) |
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180 local item = event.item; |
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181 local service, username = item.service, jid_split(item.jid); |
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182 service.events.add_handler("item-published", on_publish); |
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183 local data = storage:get(username); |
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184 if data then |
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185 update_pep(username, data, service); |
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186 end |
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187 end |
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188 |
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189 local function pep_service_removed() |
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190 -- This would happen when mod_pep_plus gets unloaded, but this module gets unloaded before that |
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191 end |
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192 |
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193 function module.load() |
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194 module:handle_items("pep-service", pep_service_added, pep_service_removed, true); |
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195 end |
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196 |
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197 -- The vCard4 part |
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198 if vcard.to_vcard4 then |
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199 module:add_feature("urn:ietf:params:xml:ns:vcard-4.0"); |
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|
200 |
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|
201 module:hook("iq-get/bare/urn:ietf:params:xml:ns:vcard-4.0:vcard", function(event) |
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|
202 local origin, stanza = event.origin, event.stanza; |
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|
203 local username = jid_split(stanza.attr.to) or origin.username; |
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|
204 local data = storage:get(username); |
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|
205 if not data then |
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206 origin.send(st.error_reply(stanza, "cancel", "item-not-found")); |
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207 return true; |
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208 end |
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|
209 origin.send(st.reply(stanza):add_child(vcard.to_vcard4(data))); |
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210 return true; |
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211 end); |
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212 |
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213 if vcard.from_vcard4 then |
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214 module:hook("iq-set/self/urn:ietf:params:xml:ns:vcard-4.0:vcard", function(event) |
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215 local origin, stanza = event.origin, event.stanza; |
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216 local ok, err = storage:set(origin.username, vcard.from_vcard4(stanza.tags[1])); |
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217 if not ok then |
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218 origin.send(st.error_reply(stanza, "cancel", "internal-server-error", err)); |
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219 return true; |
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220 end |
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221 origin.send(st.reply(stanza)); |
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222 return true; |
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223 end); |
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224 else |
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225 module:hook("iq-set/self/urn:ietf:params:xml:ns:vcard-4.0:vcard", function(event) |
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226 local origin, stanza = event.origin, event.stanza; |
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227 origin.send(st.error_reply(stanza, "cancel", "feature-not-implemented")); |
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228 return true; |
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229 end); |
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230 end |
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231 end |
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232 |