prosody
4989a625419a
plugins/mod_pubsub/mod_pubsub.lua

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plugins/mod_pubsub/mod_pubsub.lua @ 8221:4989a625419a

mod_pubsub: Comment out data persistence for now (weird without config persistence)
author Kim Alvefur <zash@zash.se>
date Wed, 13 Sep 2017 18:46:39 +0200
parent 8218:2c75a5ba58fc
child 8311:df8c82d285dc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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_string("name", "Prosody PubSub Service");
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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 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
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20 module:depends("disco");
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21 module:add_identity("pubsub", "service", pubsub_disco_name);
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22 module:add_feature("http://jabber.org/protocol/pubsub");
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23
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24 --[[ TODO Disabled until config persistence is implemented
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25 local archive = module:open_store("pubsub", "archive");
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26 --]]
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27
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28 function handle_pubsub_iq(event)
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29 local origin, stanza = event.origin, event.stanza;
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30 local pubsub_tag = stanza.tags[1];
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31 local action = pubsub_tag.tags[1];
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32 if not action then
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33 origin.send(st.error_reply(stanza, "cancel", "bad-request"));
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34 return true;
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35 end
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36 local handler = handlers[stanza.attr.type.."_"..action.name];
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37 if handler then
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38 handler(origin, stanza, action, service);
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39 return true;
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40 end
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41 end
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42
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43 --[[ TODO Disabled until config persistence is implemented
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44 local function simple_itemstore(config, node)
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45 return lib_pubsub.simple_itemstore(archive, config, nil, node, expose_publisher);
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46 end
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47 --]]
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48
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49 function simple_broadcast(kind, node, jids, item, actor)
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50 if item then
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51 item = st.clone(item);
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52 item.attr.xmlns = nil; -- Clear the pubsub namespace
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53 if expose_publisher and actor then
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54 item.attr.publisher = actor
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55 end
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56 end
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57 local message = st.message({ from = module.host, type = "headline" })
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58 :tag("event", { xmlns = xmlns_pubsub_event })
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59 :tag(kind, { node = node })
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60 :add_child(item);
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61 for jid in pairs(jids) do
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62 module:log("debug", "Sending notification to %s", jid);
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63 message.attr.to = jid;
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64 module:send(message);
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65 end
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66 end
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67
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68 module:hook("iq/host/"..xmlns_pubsub..":pubsub", handle_pubsub_iq);
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69 module:hook("iq/host/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq);
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70
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71 local feature_map = {
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72 create = { "create-nodes", "instant-nodes", "item-ids" };
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73 retract = { "delete-items", "retract-items" };
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74 purge = { "purge-nodes" };
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75 publish = { "publish", autocreate_on_publish and "auto-create" };
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76 delete = { "delete-nodes" };
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77 get_items = { "retrieve-items" };
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78 add_subscription = { "subscribe" };
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79 get_subscriptions = { "retrieve-subscriptions" };
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80 set_configure = { "config-node" };
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bcb1ea9047d3 mod_pubsub: Add support for requesting default node configuration
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81 get_default = { "retrieve-default" };
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82 };
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83
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84 local function add_disco_features_from_service(service)
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85 for method, features in pairs(feature_map) do
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86 if service[method] then
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87 for _, feature in ipairs(features) do
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88 if feature then
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89 module:add_feature(xmlns_pubsub.."#"..feature);
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90 end
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91 end
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92 end
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93 end
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94 for affiliation in pairs(service.config.capabilities) do
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95 if affiliation ~= "none" and affiliation ~= "owner" then
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96 module:add_feature(xmlns_pubsub.."#"..affiliation.."-affiliation");
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97 end
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98 end
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99 end
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100
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101 module:hook("host-disco-info-node", function (event)
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102 local stanza, reply, node = event.stanza, event.reply, event.node;
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103 local ok, ret = service:get_nodes(stanza.attr.from);
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104 if not ok or not ret[node] then
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105 return;
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106 end
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107 event.exists = true;
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108 reply:tag("identity", { category = "pubsub", type = "leaf" });
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109 end);
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110
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111 module:hook("host-disco-items-node", function (event)
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112 local stanza, reply, node = event.stanza, event.reply, event.node;
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113 local ok, ret = service:get_items(node, stanza.attr.from);
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114 if not ok then
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115 return;
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116 end
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117
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118 for _, id in ipairs(ret) do
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119 reply:tag("item", { jid = module.host, name = id }):up();
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120 end
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121 event.exists = true;
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122 end);
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123
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124
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125 module:hook("host-disco-items", function (event)
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126 local stanza, reply = event.stanza, event.reply;
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127 local ok, ret = service:get_nodes(stanza.attr.from);
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128 if not ok then
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129 return;
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130 end
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131 for node, node_obj in pairs(ret) do
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132 reply:tag("item", { jid = module.host, node = node, name = node_obj.config.name }):up();
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133 end
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134 end);
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135
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136 local admin_aff = module:get_option_string("default_admin_affiliation", "owner");
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137 local function get_affiliation(jid)
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138 local bare_jid = jid_bare(jid);
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139 if bare_jid == module.host or usermanager.is_admin(bare_jid, module.host) then
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140 return admin_aff;
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141 end
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142 end
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143
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144 function set_service(new_service)
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145 service = new_service;
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146 module.environment.service = service;
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147 add_disco_features_from_service(service);
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148 end
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149
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150 function module.save()
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151 return { service = service };
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152 end
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153
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154 function module.restore(data)
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155 set_service(data.service);
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156 end
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157
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158 function module.load()
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159 if module.reloading then return; end
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160
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161 set_service(pubsub.new({
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162 capabilities = {
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163 none = {
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164 create = false;
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165 publish = false;
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166 retract = false;
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167 get_nodes = true;
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168
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169 subscribe = true;
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170 unsubscribe = true;
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171 get_subscription = true;
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172 get_subscriptions = true;
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173 get_items = true;
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174
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175 subscribe_other = false;
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176 unsubscribe_other = false;
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177 get_subscription_other = false;
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178 get_subscriptions_other = false;
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179
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180 be_subscribed = true;
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181 be_unsubscribed = true;
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182
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183 set_affiliation = false;
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184 };
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185 publisher = {
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186 create = false;
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187 publish = true;
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188 retract = true;
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189 get_nodes = true;
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190
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191 subscribe = true;
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192 unsubscribe = true;
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193 get_subscription = true;
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194 get_subscriptions = true;
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195 get_items = true;
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196
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197 subscribe_other = false;
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198 unsubscribe_other = false;
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199 get_subscription_other = false;
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200 get_subscriptions_other = false;
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201
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202 be_subscribed = true;
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203 be_unsubscribed = true;
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204
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205 set_affiliation = false;
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206 };
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207 owner = {
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208 create = true;
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209 publish = true;
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210 retract = true;
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211 delete = true;
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212 get_nodes = true;
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213 configure = true;
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214
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215 subscribe = true;
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216 unsubscribe = true;
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217 get_subscription = true;
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218 get_subscriptions = true;
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219 get_items = true;
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220
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221
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222 subscribe_other = true;
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223 unsubscribe_other = true;
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224 get_subscription_other = true;
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225 get_subscriptions_other = true;
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226
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227 be_subscribed = true;
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228 be_unsubscribed = true;
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229
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230 set_affiliation = true;
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231 };
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232 };
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233
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234 autocreate_on_publish = autocreate_on_publish;
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235 autocreate_on_subscribe = autocreate_on_subscribe;
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236
8221
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237 --[[ TODO Disabled until config persistence is implemented
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238 itemstore = simple_itemstore;
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239 --]]
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240 broadcaster = simple_broadcast;
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241 get_affiliation = get_affiliation;
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242
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243 normalize_jid = jid_bare;
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244 }));
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245 end