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plugins/mod_pep_plus.lua @ 5866:10a16fdebe2c
Merge 0.10->trunk
author | Matthew Wild <mwild1@gmail.com> |
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date | Thu, 10 Oct 2013 22:27:01 +0100 |
parent | 5852:84bdac93910f |
child | 6264:12a083299bb7 |
rev | line source |
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1 local pubsub = require "util.pubsub"; |
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2 local jid_bare = require "util.jid".bare; |
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3 local jid_split = require "util.jid".split; |
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4 local set_new = require "util.set".new; |
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5 local st = require "util.stanza"; |
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6 local calculate_hash = require "util.caps".calculate_hash; |
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7 local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed; |
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8 |
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9 local xmlns_pubsub = "http://jabber.org/protocol/pubsub"; |
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10 local xmlns_pubsub_event = "http://jabber.org/protocol/pubsub#event"; |
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11 local xmlns_pubsub_owner = "http://jabber.org/protocol/pubsub#owner"; |
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12 |
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13 local lib_pubsub = module:require "pubsub"; |
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14 local handlers = lib_pubsub.handlers; |
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15 local pubsub_error_reply = lib_pubsub.pubsub_error_reply; |
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16 |
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17 local services = {}; |
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18 local recipients = {}; |
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19 local hash_map = {}; |
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20 |
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21 function module.save() |
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22 return { services = services }; |
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23 end |
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24 |
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25 function module.restore(data) |
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26 services = data.services; |
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27 end |
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28 |
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29 local function subscription_presence(user_bare, recipient) |
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30 local recipient_bare = jid_bare(recipient); |
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31 if (recipient_bare == user_bare) then return true; end |
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32 local username, host = jid_split(user_bare); |
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33 return is_contact_subscribed(username, host, recipient_bare); |
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34 end |
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35 |
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36 local function get_broadcaster(name) |
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37 local function simple_broadcast(kind, node, jids, item) |
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38 if item then |
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39 item = st.clone(item); |
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40 item.attr.xmlns = nil; -- Clear the pubsub namespace |
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41 end |
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42 local message = st.message({ from = name, type = "headline" }) |
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43 :tag("event", { xmlns = xmlns_pubsub_event }) |
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44 :tag(kind, { node = node }) |
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45 :add_child(item); |
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46 for jid in pairs(jids) do |
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47 module:log("debug", "Sending notification to %s from %s: %s", jid, name, tostring(item)); |
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48 message.attr.to = jid; |
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49 module:send(message); |
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50 end |
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51 end |
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52 return simple_broadcast; |
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53 end |
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54 |
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55 local function get_pep_service(name) |
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56 if services[name] then |
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57 return services[name]; |
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58 end |
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59 services[name] = pubsub.new({ |
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60 capabilities = { |
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61 none = { |
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62 create = false; |
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63 publish = false; |
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64 retract = false; |
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65 get_nodes = false; |
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66 |
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67 subscribe = false; |
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68 unsubscribe = false; |
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69 get_subscription = false; |
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70 get_subscriptions = false; |
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71 get_items = false; |
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72 |
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73 subscribe_other = false; |
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74 unsubscribe_other = false; |
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75 get_subscription_other = false; |
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76 get_subscriptions_other = false; |
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77 |
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78 be_subscribed = true; |
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79 be_unsubscribed = true; |
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80 |
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81 set_affiliation = false; |
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82 }; |
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83 subscriber = { |
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84 create = false; |
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85 publish = false; |
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86 retract = false; |
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87 get_nodes = true; |
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88 |
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89 subscribe = true; |
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90 unsubscribe = true; |
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91 get_subscription = true; |
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92 get_subscriptions = true; |
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93 get_items = true; |
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94 |
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95 subscribe_other = false; |
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96 unsubscribe_other = false; |
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97 get_subscription_other = false; |
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98 get_subscriptions_other = false; |
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99 |
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100 be_subscribed = true; |
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101 be_unsubscribed = true; |
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102 |
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103 set_affiliation = false; |
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104 }; |
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105 publisher = { |
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106 create = false; |
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107 publish = true; |
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108 retract = true; |
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109 get_nodes = true; |
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110 |
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111 subscribe = true; |
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112 unsubscribe = true; |
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113 get_subscription = true; |
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114 get_subscriptions = true; |
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115 get_items = true; |
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116 |
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117 subscribe_other = false; |
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118 unsubscribe_other = false; |
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119 get_subscription_other = false; |
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120 get_subscriptions_other = false; |
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121 |
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122 be_subscribed = true; |
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123 be_unsubscribed = true; |
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124 |
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125 set_affiliation = false; |
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126 }; |
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127 owner = { |
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128 create = true; |
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129 publish = true; |
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130 retract = true; |
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131 delete = true; |
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132 get_nodes = true; |
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133 |
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134 subscribe = true; |
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135 unsubscribe = true; |
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136 get_subscription = true; |
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137 get_subscriptions = true; |
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138 get_items = true; |
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139 |
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140 |
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141 subscribe_other = true; |
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142 unsubscribe_other = true; |
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143 get_subscription_other = true; |
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144 get_subscriptions_other = true; |
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145 |
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146 be_subscribed = true; |
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147 be_unsubscribed = true; |
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148 |
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149 set_affiliation = true; |
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150 }; |
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151 }; |
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152 |
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153 autocreate_on_publish = true; |
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154 autocreate_on_subscribe = true; |
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155 |
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156 broadcaster = get_broadcaster(name); |
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157 get_affiliation = function (jid) |
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158 if jid_bare(jid) == name then |
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159 return "owner"; |
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160 elseif subscription_presence(name, jid) then |
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161 return "subscriber"; |
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162 end |
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163 end; |
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164 |
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165 normalize_jid = jid_bare; |
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166 }); |
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167 return services[name]; |
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168 end |
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169 |
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170 function handle_pubsub_iq(event) |
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171 local origin, stanza = event.origin, event.stanza; |
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172 local pubsub = stanza.tags[1]; |
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173 local action = pubsub.tags[1]; |
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174 if not action then |
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175 return origin.send(st.error_reply(stanza, "cancel", "bad-request")); |
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176 end |
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177 local service_name = stanza.attr.to or origin.username.."@"..origin.host |
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178 local service = get_pep_service(service_name); |
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179 local handler = handlers[stanza.attr.type.."_"..action.name]; |
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180 if handler then |
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181 handler(origin, stanza, action, service); |
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182 return true; |
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183 end |
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184 end |
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185 |
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186 module:hook("iq/bare/"..xmlns_pubsub..":pubsub", handle_pubsub_iq); |
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187 module:hook("iq/bare/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq); |
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188 |
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189 module:add_identity("pubsub", "pep", module:get_option_string("name", "Prosody")); |
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190 module:add_feature("http://jabber.org/protocol/pubsub#publish"); |
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191 |
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192 local function get_caps_hash_from_presence(stanza, current) |
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193 local t = stanza.attr.type; |
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194 if not t then |
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195 local child = stanza:get_child("c", "http://jabber.org/protocol/caps"); |
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196 if child then |
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197 local attr = child.attr; |
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198 if attr.hash then -- new caps |
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199 if attr.hash == 'sha-1' and attr.node and attr.ver then |
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200 return attr.ver, attr.node.."#"..attr.ver; |
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201 end |
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202 else -- legacy caps |
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203 if attr.node and attr.ver then |
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204 return attr.node.."#"..attr.ver.."#"..(attr.ext or ""), attr.node.."#"..attr.ver; |
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205 end |
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206 end |
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207 end |
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208 return; -- no or bad caps |
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209 elseif t == "unavailable" or t == "error" then |
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210 return; |
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211 end |
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212 return current; -- no caps, could mean caps optimization, so return current |
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213 end |
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214 |
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215 local function resend_last_item(jid, node, service) |
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216 local ok, items = service:get_items(node, jid); |
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217 if not ok then return; end |
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218 for i, id in ipairs(items) do |
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219 service.config.broadcaster("items", node, { [jid] = true }, items[id]); |
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220 end |
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221 end |
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222 |
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223 local function update_subscriptions(recipient, service_name, nodes) |
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224 local service = get_pep_service(service_name); |
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225 |
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226 recipients[service_name] = recipients[service_name] or {}; |
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227 nodes = nodes or set_new(); |
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228 local old = recipients[service_name][recipient]; |
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229 |
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230 if old and type(old) == table then |
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231 for node in pairs((old - nodes):items()) do |
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232 service:remove_subscription(node, recipient, recipient); |
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233 end |
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234 end |
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235 |
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236 for node in nodes:items() do |
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237 service:add_subscription(node, recipient, recipient); |
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238 resend_last_item(recipient, node, service); |
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239 end |
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240 recipients[service_name][recipient] = nodes; |
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241 end |
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242 |
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243 module:hook("presence/bare", function(event) |
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244 -- inbound presence to bare JID recieved |
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245 local origin, stanza = event.origin, event.stanza; |
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246 local user = stanza.attr.to or (origin.username..'@'..origin.host); |
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247 local t = stanza.attr.type; |
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248 local self = not stanza.attr.to; |
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249 local service = get_pep_service(user); |
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250 |
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251 if not t then -- available presence |
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252 if self or subscription_presence(user, stanza.attr.from) then |
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253 local recipient = stanza.attr.from; |
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254 local current = recipients[user] and recipients[user][recipient]; |
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255 local hash, query_node = get_caps_hash_from_presence(stanza, current); |
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256 if current == hash or (current and current == hash_map[hash]) then return; end |
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257 if not hash then |
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258 update_subscriptions(recipient, user); |
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259 else |
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260 recipients[user] = recipients[user] or {}; |
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261 if hash_map[hash] then |
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262 update_subscriptions(recipient, user, hash_map[hash]); |
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263 else |
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264 recipients[user][recipient] = hash; |
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265 local from_bare = origin.type == "c2s" and origin.username.."@"..origin.host; |
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266 if self or origin.type ~= "c2s" or (recipients[from_bare] and recipients[from_bare][origin.full_jid]) ~= hash then |
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267 -- COMPAT from ~= stanza.attr.to because OneTeam can't deal with missing from attribute |
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268 origin.send( |
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269 st.stanza("iq", {from=user, to=stanza.attr.from, id="disco", type="get"}) |
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270 :tag("query", {xmlns = "http://jabber.org/protocol/disco#info", node = query_node}) |
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271 ); |
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272 end |
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273 end |
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274 end |
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275 end |
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276 elseif t == "unavailable" then |
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277 update_subscriptions(stanza.attr.from, user); |
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278 elseif not self and t == "unsubscribe" then |
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279 local from = jid_bare(stanza.attr.from); |
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280 local subscriptions = recipients[user]; |
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281 if subscriptions then |
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282 for subscriber in pairs(subscriptions) do |
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283 if jid_bare(subscriber) == from then |
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284 update_subscriptions(subscriber, user); |
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285 end |
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286 end |
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287 end |
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288 end |
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289 end, 10); |
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290 |
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291 module:hook("iq-result/bare/disco", function(event) |
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292 local origin, stanza = event.origin, event.stanza; |
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293 local disco = stanza:get_child("query", "http://jabber.org/protocol/disco#info"); |
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294 if not disco then |
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295 return; |
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296 end |
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297 |
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298 -- Process disco response |
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299 local self = not stanza.attr.to; |
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300 local user = stanza.attr.to or (origin.username..'@'..origin.host); |
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301 local contact = stanza.attr.from; |
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302 local current = recipients[user] and recipients[user][contact]; |
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303 if type(current) ~= "string" then return; end -- check if waiting for recipient's response |
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304 local ver = current; |
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305 if not string.find(current, "#") then |
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306 ver = calculate_hash(disco.tags); -- calculate hash |
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307 end |
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308 local notify = set_new(); |
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309 for _, feature in pairs(disco.tags) do |
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310 if feature.name == "feature" and feature.attr.var then |
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311 local nfeature = feature.attr.var:match("^(.*)%+notify$"); |
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312 if nfeature then notify:add(nfeature); end |
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313 end |
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314 end |
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315 hash_map[ver] = notify; -- update hash map |
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316 if self then |
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317 for jid, item in pairs(origin.roster) do -- for all interested contacts |
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318 if item.subscription == "both" or item.subscription == "from" then |
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319 if not recipients[jid] then recipients[jid] = {}; end |
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320 update_subscriptions(contact, jid, notify); |
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321 end |
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322 end |
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323 end |
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324 update_subscriptions(contact, user, notify); |
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325 end); |
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326 |
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327 module:hook("account-disco-info-node", function(event) |
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328 local reply, stanza, origin = event.reply, event.stanza, event.origin; |
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329 local service_name = stanza.attr.to or origin.username.."@"..origin.host |
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330 local service = get_pep_service(service_name); |
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331 local node = event.node; |
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332 local ok = service:get_items(node, jid_bare(stanza.attr.from) or true); |
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333 if not ok then return; end |
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334 event.exists = true; |
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335 reply:tag('identity', {category='pubsub', type='leaf'}):up(); |
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336 end); |
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337 |
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338 module:hook("account-disco-info", function(event) |
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339 local reply = event.reply; |
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340 reply:tag('identity', {category='pubsub', type='pep'}):up(); |
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341 reply:tag('feature', {var='http://jabber.org/protocol/pubsub#publish'}):up(); |
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342 end); |
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343 |
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344 module:hook("account-disco-items-node", function(event) |
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345 local reply, stanza, origin = event.reply, event.stanza, event.origin; |
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346 local node = event.node; |
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347 local service_name = stanza.attr.to or origin.username.."@"..origin.host |
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348 local service = get_pep_service(service_name); |
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mod_pep_plus: An util.pubsub based PEP module
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349 local ok, ret = service:get_items(node, jid_bare(stanza.attr.from) or true); |
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mod_pep_plus: An util.pubsub based PEP module
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350 if not ok then return; end |
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mod_pep_plus: An util.pubsub based PEP module
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351 event.exists = true; |
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mod_pep_plus: An util.pubsub based PEP module
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352 for _, id in ipairs(ret) do |
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mod_pep_plus: An util.pubsub based PEP module
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353 reply:tag("item", { jid = service_name, name = id }):up(); |
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mod_pep_plus: An util.pubsub based PEP module
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354 end |
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mod_pep_plus: An util.pubsub based PEP module
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355 end); |
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mod_pep_plus: An util.pubsub based PEP module
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356 |
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357 module:hook("account-disco-items", function(event) |
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358 local reply, stanza, origin = event.reply, event.stanza, event.origin; |
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mod_pep_plus: An util.pubsub based PEP module
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359 |
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360 local service_name = reply.attr.from or origin.username.."@"..origin.host |
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mod_pep_plus: An util.pubsub based PEP module
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361 local service = get_pep_service(service_name); |
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362 local ok, ret = service:get_nodes(jid_bare(stanza.attr.from)); |
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363 if not ok then return; end |
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mod_pep_plus: An util.pubsub based PEP module
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364 |
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365 for node, node_obj in pairs(ret) do |
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mod_pep_plus: An util.pubsub based PEP module
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366 reply:tag("item", { jid = service_name, node = node, name = node_obj.config.name }):up(); |
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367 end |
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368 end); |