prosody
615a0774e4cc
plugins/mod_pubsub/mod_pubsub.lua

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plugins/mod_pubsub/mod_pubsub.lua @ 5877:615a0774e4cc

util.timer: Updated to use util.indexedbheap to provide a more complete API. Timers can now be stopped or rescheduled. Callbacks are now pcall'd. Adding/removing timers from within timer callbacks works better. Optional parameter can be passed when creating timer which gets passed to callback, eliminating the need for closures in various timer uses. Timers are now much more lightweight.
author Waqas Hussain <waqas20@gmail.com>
date Wed, 30 Oct 2013 17:44:42 -0400
parent 5851:cdcfd93e2f43
child 5973:905b4fd863b4
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1 local pubsub = require "util.pubsub";
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2 local st = require "util.stanza";
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3 local jid_bare = require "util.jid".bare;
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4 local usermanager = require "core.usermanager";
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5
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6 local xmlns_pubsub = "http://jabber.org/protocol/pubsub";
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7 local xmlns_pubsub_event = "http://jabber.org/protocol/pubsub#event";
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8 local xmlns_pubsub_owner = "http://jabber.org/protocol/pubsub#owner";
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9
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10 local autocreate_on_publish = module:get_option_boolean("autocreate_on_publish", false);
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11 local autocreate_on_subscribe = module:get_option_boolean("autocreate_on_subscribe", false);
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12 local pubsub_disco_name = module:get_option("name");
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13 if type(pubsub_disco_name) ~= "string" then pubsub_disco_name = "Prosody PubSub Service"; end
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14
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15 local service;
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16
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17 local lib_pubsub = module:require "pubsub";
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18 local handlers = lib_pubsub.handlers;
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19 local pubsub_error_reply = lib_pubsub.pubsub_error_reply;
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20
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21 module:depends("disco");
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22 module:add_identity("pubsub", "service", pubsub_disco_name);
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23 module:add_feature("http://jabber.org/protocol/pubsub");
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24
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25 function handle_pubsub_iq(event)
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26 local origin, stanza = event.origin, event.stanza;
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27 local pubsub = stanza.tags[1];
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28 local action = pubsub.tags[1];
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29 if not action then
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30 return origin.send(st.error_reply(stanza, "cancel", "bad-request"));
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31 end
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32 local handler = handlers[stanza.attr.type.."_"..action.name];
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33 if handler then
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34 handler(origin, stanza, action, service);
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35 return true;
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36 end
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37 end
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38
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39 function simple_broadcast(kind, node, jids, item)
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40 if item then
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41 item = st.clone(item);
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42 item.attr.xmlns = nil; -- Clear the pubsub namespace
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43 end
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44 local message = st.message({ from = module.host, type = "headline" })
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45 :tag("event", { xmlns = xmlns_pubsub_event })
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46 :tag(kind, { node = node })
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47 :add_child(item);
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48 for jid in pairs(jids) do
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49 module:log("debug", "Sending notification to %s", jid);
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50 message.attr.to = jid;
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51 module:send(message);
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52 end
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53 end
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54
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55 module:hook("iq/host/"..xmlns_pubsub..":pubsub", handle_pubsub_iq);
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56 module:hook("iq/host/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq);
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57
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58 local feature_map = {
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59 create = { "create-nodes", "instant-nodes", "item-ids" };
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60 retract = { "delete-items", "retract-items" };
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61 purge = { "purge-nodes" };
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62 publish = { "publish", autocreate_on_publish and "auto-create" };
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63 delete = { "delete-nodes" };
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64 get_items = { "retrieve-items" };
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65 add_subscription = { "subscribe" };
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66 get_subscriptions = { "retrieve-subscriptions" };
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67 };
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68
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69 local function add_disco_features_from_service(service)
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70 for method, features in pairs(feature_map) do
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71 if service[method] then
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72 for _, feature in ipairs(features) do
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73 if feature then
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74 module:add_feature(xmlns_pubsub.."#"..feature);
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75 end
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76 end
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77 end
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78 end
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79 for affiliation in pairs(service.config.capabilities) do
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80 if affiliation ~= "none" and affiliation ~= "owner" then
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81 module:add_feature(xmlns_pubsub.."#"..affiliation.."-affiliation");
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82 end
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83 end
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84 end
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85
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86 module:hook("host-disco-info-node", function (event)
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87 local stanza, origin, reply, node = event.stanza, event.origin, event.reply, event.node;
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88 local ok, ret = service:get_nodes(stanza.attr.from);
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89 if ok and not ret[node] then
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90 return;
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91 end
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92 if not ok then
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93 return origin.send(pubsub_error_reply(stanza, ret));
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94 end
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95 event.exists = true;
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96 reply:tag("identity", { category = "pubsub", type = "leaf" });
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97 end);
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98
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99 module:hook("host-disco-items-node", function (event)
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100 local stanza, origin, reply, node = event.stanza, event.origin, event.reply, event.node;
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101 local ok, ret = service:get_items(node, stanza.attr.from);
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102 if not ok then
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103 return origin.send(pubsub_error_reply(stanza, ret));
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104 end
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105
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106 for _, id in ipairs(ret) do
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107 reply:tag("item", { jid = module.host, name = id }):up();
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108 end
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109 event.exists = true;
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110 end);
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111
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112
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113 module:hook("host-disco-items", function (event)
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114 local stanza, origin, reply = event.stanza, event.origin, event.reply;
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115 local ok, ret = service:get_nodes(event.stanza.attr.from);
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116 if not ok then
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117 return origin.send(pubsub_error_reply(event.stanza, ret));
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118 end
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119 for node, node_obj in pairs(ret) do
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120 reply:tag("item", { jid = module.host, node = node, name = node_obj.config.name }):up();
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121 end
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122 end);
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123
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124 local admin_aff = module:get_option_string("default_admin_affiliation", "owner");
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125 local function get_affiliation(jid)
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126 local bare_jid = jid_bare(jid);
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127 if bare_jid == module.host or usermanager.is_admin(bare_jid, module.host) then
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128 return admin_aff;
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129 end
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130 end
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131
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132 function set_service(new_service)
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133 service = new_service;
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134 module.environment.service = service;
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135 add_disco_features_from_service(service);
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136 end
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137
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138 function module.save()
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139 return { service = service };
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140 end
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141
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142 function module.restore(data)
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143 set_service(data.service);
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144 end
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145
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146 function module.load()
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147 if module.reloading then return; end
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148
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149 set_service(pubsub.new({
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150 capabilities = {
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151 none = {
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152 create = false;
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153 publish = false;
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154 retract = false;
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155 get_nodes = true;
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156
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157 subscribe = true;
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158 unsubscribe = true;
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159 get_subscription = true;
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160 get_subscriptions = true;
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161 get_items = true;
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162
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163 subscribe_other = false;
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164 unsubscribe_other = false;
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165 get_subscription_other = false;
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166 get_subscriptions_other = false;
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167
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168 be_subscribed = true;
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169 be_unsubscribed = true;
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170
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171 set_affiliation = false;
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172 };
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173 publisher = {
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174 create = false;
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175 publish = true;
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176 retract = true;
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177 get_nodes = true;
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178
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179 subscribe = true;
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180 unsubscribe = true;
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181 get_subscription = true;
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182 get_subscriptions = true;
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183 get_items = true;
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184
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185 subscribe_other = false;
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186 unsubscribe_other = false;
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187 get_subscription_other = false;
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188 get_subscriptions_other = false;
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189
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190 be_subscribed = true;
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191 be_unsubscribed = true;
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192
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193 set_affiliation = false;
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194 };
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195 owner = {
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196 create = true;
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197 publish = true;
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198 retract = true;
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199 delete = true;
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200 get_nodes = true;
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201
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202 subscribe = true;
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203 unsubscribe = true;
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204 get_subscription = true;
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205 get_subscriptions = true;
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206 get_items = true;
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207
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208
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209 subscribe_other = true;
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210 unsubscribe_other = true;
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211 get_subscription_other = true;
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212 get_subscriptions_other = true;
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213
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214 be_subscribed = true;
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215 be_unsubscribed = true;
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216
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217 set_affiliation = true;
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218 };
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219 };
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220
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221 autocreate_on_publish = autocreate_on_publish;
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222 autocreate_on_subscribe = autocreate_on_subscribe;
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223
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224 broadcaster = simple_broadcast;
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225 get_affiliation = get_affiliation;
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226
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227 normalize_jid = jid_bare;
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228 }));
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229 end