prosody
21466b778bf1
plugins/mod_pubsub/mod_pubsub.lua

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plugins/mod_pubsub/mod_pubsub.lua @ 8313:21466b778bf1

mod_pubsub: Hide item persistence behind option (at least until affiliations are also persisted)
author Kim Alvefur <zash@zash.se>
date Mon, 09 Oct 2017 02:08:41 +0200
parent 8311:df8c82d285dc
child 8318:d0a7fc7614de
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Florian Zeitz <florob@babelmonkeys.de>
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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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879be73c0a58 mod_pubsub: Fix syntax error introduced in 241f02bd66ce
Matthew Wild <mwild1@gmail.com>
parents: 7980
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12 local pubsub_disco_name = module:get_option_string("name", "Prosody PubSub Service");
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c9a72c64c3e2 mod_pubsub: Add support for including the publisher in item broadcasts
Philipp Hancke <fippo@goodadvice.pages.de>
parents: 6446
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13 local expose_publisher = module:get_option_boolean("expose_publisher", false)
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14
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15 local enable_persistence = module:get_option_boolean("experimental_pubsub_item_persistence", false);
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16
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17 local service;
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18
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19 local lib_pubsub = module:require "pubsub";
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20 local handlers = lib_pubsub.handlers;
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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_tag = stanza.tags[1];
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29 local action = pubsub_tag.tags[1];
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30 if not action then
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31 origin.send(st.error_reply(stanza, "cancel", "bad-request"));
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32 return true;
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33 end
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34 local handler = handlers[stanza.attr.type.."_"..action.name];
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35 if handler then
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36 handler(origin, stanza, action, service);
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37 return true;
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38 end
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39 end
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40
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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41 local function simple_itemstore(config, node)
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df8c82d285dc mod_pubsub: Restore persistence with one archive per node
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42 local archive = module:open_store("pubsub_"..node, "archive");
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2c75a5ba58fc mod_pubsub: Pass 'user' to simple_itemstore
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43 return lib_pubsub.simple_itemstore(archive, config, nil, node, expose_publisher);
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44 end
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45
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46 if enable_persistence then
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47 module:log("warn", "Item persistence is an experimental feature. Note that ownership information is lost on restart.")
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48 else
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49 simple_itemstore = nil;
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50 end
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51
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52
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53 function simple_broadcast(kind, node, jids, item, actor)
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54 if item then
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55 item = st.clone(item);
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56 item.attr.xmlns = nil; -- Clear the pubsub namespace
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57 if expose_publisher and actor then
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58 item.attr.publisher = actor
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59 end
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60 end
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61 local message = st.message({ from = module.host, type = "headline" })
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62 :tag("event", { xmlns = xmlns_pubsub_event })
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63 :tag(kind, { node = node })
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64 :add_child(item);
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65 for jid in pairs(jids) do
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66 module:log("debug", "Sending notification to %s", jid);
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67 message.attr.to = jid;
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68 module:send(message);
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69 end
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70 end
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71
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72 module:hook("iq/host/"..xmlns_pubsub..":pubsub", handle_pubsub_iq);
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73 module:hook("iq/host/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq);
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74
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75 local feature_map = {
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76 create = { "create-nodes", "instant-nodes", "item-ids" };
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77 retract = { "delete-items", "retract-items" };
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78 purge = { "purge-nodes" };
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79 publish = { "publish", autocreate_on_publish and "auto-create" };
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80 delete = { "delete-nodes" };
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81 get_items = { "retrieve-items" };
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82 add_subscription = { "subscribe" };
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83 get_subscriptions = { "retrieve-subscriptions" };
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84 set_configure = { "config-node" };
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85 get_default = { "retrieve-default" };
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86 };
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87
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88 local function add_disco_features_from_service(service)
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89 for method, features in pairs(feature_map) do
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90 if service[method] then
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91 for _, feature in ipairs(features) do
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92 if feature then
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93 module:add_feature(xmlns_pubsub.."#"..feature);
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94 end
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95 end
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96 end
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97 end
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98 for affiliation in pairs(service.config.capabilities) do
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99 if affiliation ~= "none" and affiliation ~= "owner" then
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100 module:add_feature(xmlns_pubsub.."#"..affiliation.."-affiliation");
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101 end
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102 end
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103 end
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104
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105 module:hook("host-disco-info-node", function (event)
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106 local stanza, reply, node = event.stanza, event.reply, event.node;
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107 local ok, ret = service:get_nodes(stanza.attr.from);
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108 if not ok or not ret[node] then
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109 return;
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110 end
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111 event.exists = true;
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112 reply:tag("identity", { category = "pubsub", type = "leaf" });
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113 end);
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114
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115 module:hook("host-disco-items-node", function (event)
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116 local stanza, reply, node = event.stanza, event.reply, event.node;
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117 local ok, ret = service:get_items(node, stanza.attr.from);
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118 if not ok then
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119 return;
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120 end
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121
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122 for _, id in ipairs(ret) do
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123 reply:tag("item", { jid = module.host, name = id }):up();
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124 end
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125 event.exists = true;
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126 end);
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127
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128
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129 module:hook("host-disco-items", function (event)
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130 local stanza, reply = event.stanza, event.reply;
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131 local ok, ret = service:get_nodes(stanza.attr.from);
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132 if not ok then
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133 return;
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134 end
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135 for node, node_obj in pairs(ret) do
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136 reply:tag("item", { jid = module.host, node = node, name = node_obj.config.name }):up();
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137 end
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138 end);
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139
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140 local admin_aff = module:get_option_string("default_admin_affiliation", "owner");
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141 local function get_affiliation(jid)
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142 local bare_jid = jid_bare(jid);
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143 if bare_jid == module.host or usermanager.is_admin(bare_jid, module.host) then
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144 return admin_aff;
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145 end
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146 end
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147
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148 function set_service(new_service)
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149 service = new_service;
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150 module.environment.service = service;
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151 add_disco_features_from_service(service);
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152 end
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153
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154 function module.save()
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155 return { service = service };
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156 end
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157
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158 function module.restore(data)
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159 set_service(data.service);
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160 end
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161
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162 function module.load()
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163 if module.reloading then return; end
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164
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165 set_service(pubsub.new({
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166 capabilities = {
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167 none = {
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168 create = false;
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169 publish = false;
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170 retract = false;
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171 get_nodes = true;
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172
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173 subscribe = true;
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174 unsubscribe = true;
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175 get_subscription = true;
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176 get_subscriptions = true;
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177 get_items = true;
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178
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179 subscribe_other = false;
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180 unsubscribe_other = false;
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181 get_subscription_other = false;
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182 get_subscriptions_other = false;
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183
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184 be_subscribed = true;
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185 be_unsubscribed = true;
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186
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187 set_affiliation = false;
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188 };
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189 publisher = {
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190 create = false;
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191 publish = true;
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192 retract = true;
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193 get_nodes = true;
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194
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195 subscribe = true;
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196 unsubscribe = true;
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197 get_subscription = true;
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198 get_subscriptions = true;
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199 get_items = true;
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200
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201 subscribe_other = false;
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202 unsubscribe_other = false;
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203 get_subscription_other = false;
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204 get_subscriptions_other = false;
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205
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206 be_subscribed = true;
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207 be_unsubscribed = true;
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208
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209 set_affiliation = false;
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210 };
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211 owner = {
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212 create = true;
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213 publish = true;
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214 retract = true;
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215 delete = true;
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216 get_nodes = true;
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217 configure = true;
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218
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219 subscribe = true;
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220 unsubscribe = true;
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221 get_subscription = true;
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222 get_subscriptions = true;
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223 get_items = true;
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224
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225
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226 subscribe_other = true;
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227 unsubscribe_other = true;
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228 get_subscription_other = true;
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229 get_subscriptions_other = true;
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230
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231 be_subscribed = true;
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232 be_unsubscribed = true;
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233
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234 set_affiliation = true;
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235 };
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236 };
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237
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238 autocreate_on_publish = autocreate_on_publish;
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239 autocreate_on_subscribe = autocreate_on_subscribe;
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240
8213
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241 itemstore = simple_itemstore;
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242 broadcaster = simple_broadcast;
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243 get_affiliation = get_affiliation;
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244
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245 normalize_jid = jid_bare;
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246 }));
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247 end