prosody
b6eff3ba13de
plugins/mod_pubsub/mod_pubsub.lua

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plugins/mod_pubsub/mod_pubsub.lua @ 6709:b6eff3ba13de

mod_tls: Build <starttls/> as a stanza instead of with string concatenation
author Kim Alvefur <zash@zash.se>
date Mon, 18 May 2015 21:43:24 +0200
parent 6657:f1af4edd5722
child 6666:42fdc8dddf04
child 6841:be87ab2d611c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 local expose_publisher = module:get_option_boolean("expose_publisher", false)
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15
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16 local service;
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17
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18 local lib_pubsub = module:require "pubsub";
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19 local handlers = lib_pubsub.handlers;
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20 local pubsub_error_reply = lib_pubsub.pubsub_error_reply;
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21
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22 module:depends("disco");
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23 module:add_identity("pubsub", "service", pubsub_disco_name);
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24 module:add_feature("http://jabber.org/protocol/pubsub");
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25
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26 function handle_pubsub_iq(event)
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27 local origin, stanza = event.origin, event.stanza;
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28 local pubsub = stanza.tags[1];
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29 local action = pubsub.tags[1];
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30 if not action then
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31 return origin.send(st.error_reply(stanza, "cancel", "bad-request"));
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32 end
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33 local handler = handlers[stanza.attr.type.."_"..action.name];
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34 if handler then
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35 handler(origin, stanza, action, service);
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36 return true;
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37 end
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38 end
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39
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40 function simple_broadcast(kind, node, jids, item, actor)
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41 if item then
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42 item = st.clone(item);
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43 item.attr.xmlns = nil; -- Clear the pubsub namespace
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44 if expose_publisher and actor then
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45 item.attr.publisher = actor
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46 end
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47 end
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48 local message = st.message({ from = module.host, type = "headline" })
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49 :tag("event", { xmlns = xmlns_pubsub_event })
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50 :tag(kind, { node = node })
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51 :add_child(item);
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52 for jid in pairs(jids) do
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53 module:log("debug", "Sending notification to %s", jid);
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54 message.attr.to = jid;
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55 module:send(message);
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56 end
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57 end
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58
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59 module:hook("iq/host/"..xmlns_pubsub..":pubsub", handle_pubsub_iq);
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60 module:hook("iq/host/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq);
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61
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62 local feature_map = {
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63 create = { "create-nodes", "instant-nodes", "item-ids" };
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64 retract = { "delete-items", "retract-items" };
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65 purge = { "purge-nodes" };
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66 publish = { "publish", autocreate_on_publish and "auto-create" };
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67 delete = { "delete-nodes" };
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68 get_items = { "retrieve-items" };
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69 add_subscription = { "subscribe" };
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70 get_subscriptions = { "retrieve-subscriptions" };
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71 set_configure = { "config-node" };
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72 get_default = { "retrieve-default" };
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73 };
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74
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75 local function add_disco_features_from_service(service)
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76 for method, features in pairs(feature_map) do
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77 if service[method] then
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78 for _, feature in ipairs(features) do
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79 if feature then
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80 module:add_feature(xmlns_pubsub.."#"..feature);
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81 end
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82 end
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83 end
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84 end
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85 for affiliation in pairs(service.config.capabilities) do
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86 if affiliation ~= "none" and affiliation ~= "owner" then
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87 module:add_feature(xmlns_pubsub.."#"..affiliation.."-affiliation");
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88 end
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89 end
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90 end
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91
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92 module:hook("host-disco-info-node", function (event)
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93 local stanza, origin, reply, node = event.stanza, event.origin, event.reply, event.node;
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94 local ok, ret = service:get_nodes(stanza.attr.from);
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95 if not ok or not ret[node] then
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96 return;
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97 end
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98 event.exists = true;
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99 reply:tag("identity", { category = "pubsub", type = "leaf" });
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100 end);
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101
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102 module:hook("host-disco-items-node", function (event)
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103 local stanza, origin, reply, node = event.stanza, event.origin, event.reply, event.node;
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104 local ok, ret = service:get_items(node, stanza.attr.from);
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105 if not ok then
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106 return;
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107 end
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108
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109 for _, id in ipairs(ret) do
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110 reply:tag("item", { jid = module.host, name = id }):up();
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111 end
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112 event.exists = true;
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113 end);
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114
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115
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116 module:hook("host-disco-items", function (event)
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117 local stanza, origin, reply = event.stanza, event.origin, event.reply;
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118 local ok, ret = service:get_nodes(event.stanza.attr.from);
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119 if not ok then
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120 return;
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121 end
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122 for node, node_obj in pairs(ret) do
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123 reply:tag("item", { jid = module.host, node = node, name = node_obj.config.name }):up();
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124 end
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125 end);
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126
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127 local admin_aff = module:get_option_string("default_admin_affiliation", "owner");
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128 local unowned_aff = module:get_option_string("default_unowned_affiliation");
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129 local function get_affiliation(jid, node)
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130 local bare_jid = jid_bare(jid);
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131 if bare_jid == module.host or usermanager.is_admin(bare_jid, module.host) then
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132 return admin_aff;
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133 end
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134 if not node then
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135 return unowned_aff;
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136 end
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137 end
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138
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139 function set_service(new_service)
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140 service = new_service;
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141 module.environment.service = service;
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142 add_disco_features_from_service(service);
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143 end
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144
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145 function module.save()
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146 return { service = service };
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147 end
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148
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149 function module.restore(data)
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150 set_service(data.service);
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151 end
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152
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153 function module.load()
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154 if module.reloading then return; end
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155
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156 set_service(pubsub.new({
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157 capabilities = {
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158 none = {
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159 create = false;
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160 publish = false;
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161 retract = false;
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162 get_nodes = true;
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163
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164 subscribe = true;
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165 unsubscribe = true;
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166 get_subscription = true;
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167 get_subscriptions = true;
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168 get_items = true;
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169
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170 subscribe_other = false;
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171 unsubscribe_other = false;
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172 get_subscription_other = false;
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173 get_subscriptions_other = false;
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174
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175 be_subscribed = true;
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176 be_unsubscribed = true;
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177
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178 set_affiliation = false;
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179 };
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180 publisher = {
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181 create = false;
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182 publish = true;
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183 retract = true;
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184 get_nodes = true;
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185
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186 subscribe = true;
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187 unsubscribe = true;
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188 get_subscription = true;
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189 get_subscriptions = true;
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190 get_items = true;
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191
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192 subscribe_other = false;
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193 unsubscribe_other = false;
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194 get_subscription_other = false;
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195 get_subscriptions_other = false;
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196
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197 be_subscribed = true;
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198 be_unsubscribed = true;
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199
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200 set_affiliation = false;
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201 };
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202 owner = {
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203 create = true;
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204 publish = true;
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205 retract = true;
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206 delete = true;
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207 get_nodes = true;
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208 configure = true;
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209
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210 subscribe = true;
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211 unsubscribe = true;
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212 get_subscription = true;
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213 get_subscriptions = true;
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214 get_items = true;
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215
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216
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217 subscribe_other = true;
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218 unsubscribe_other = true;
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219 get_subscription_other = true;
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220 get_subscriptions_other = true;
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221
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222 be_subscribed = true;
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223 be_unsubscribed = true;
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224
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225 set_affiliation = true;
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226 };
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227 };
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228
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229 autocreate_on_publish = autocreate_on_publish;
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230 autocreate_on_subscribe = autocreate_on_subscribe;
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231
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232 broadcaster = simple_broadcast;
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233 get_affiliation = get_affiliation;
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234
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235 normalize_jid = jid_bare;
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236 }));
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237 end