prosody
79cf1f74738f
plugins/mod_pubsub/mod_pubsub.lua

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plugins/mod_pubsub/mod_pubsub.lua @ 9181:79cf1f74738f

mod_pubsub: Prepare to support turning notifications off for each kind of broadcast
author Kim Alvefur <zash@zash.se>
date Thu, 16 Aug 2018 14:47:30 +0200
parent 9179:82fad995a149
child 9187:bd452e4f5a13
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 local new_id = require "util.id".medium;
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6
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7 local xmlns_pubsub = "http://jabber.org/protocol/pubsub";
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8 local xmlns_pubsub_event = "http://jabber.org/protocol/pubsub#event";
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9 local xmlns_pubsub_owner = "http://jabber.org/protocol/pubsub#owner";
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10
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11 local autocreate_on_publish = module:get_option_boolean("autocreate_on_publish", false);
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12 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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13 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
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14 local expose_publisher = module:get_option_boolean("expose_publisher", false)
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15
8416d4619d80 mod_pubsub: Split out handlers into a module library
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16 local service;
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17
8416d4619d80 mod_pubsub: Split out handlers into a module library
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18 local lib_pubsub = module:require "pubsub";
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19
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630e7224a65f mod_pubsub: Utilize mod_disco, instead of reimplementing disco handling
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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 function handle_pubsub_iq(event)
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25 return lib_pubsub.handle_pubsub_iq(event, service);
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26 end
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27
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28 -- An itemstore supports the following methods:
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29 -- items(): iterator over (id, item)
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30 -- get(id): return item with id
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31 -- set(id, item): set id to item
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32 -- clear(): clear all items
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33 -- resize(n): set new limit and trim oldest items
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34 -- tail(): return the latest item
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35
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36 -- A nodestore supports the following methods:
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37 -- set(node_name, node_data)
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38 -- get(node_name)
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39 -- users(): iterator over (node_name)
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40
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41
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80b8355c8b8b mod_pubsub: Add nodestore to service configuration
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42 local node_store = module:open_store(module.name.."_nodes");
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43
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3b86134c56ea mod_pubsub: Some variable renames for clarity
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44 local function create_simple_itemstore(node_config, node_name)
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45 local archive = module:open_store("pubsub_"..node_name, "archive");
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46 return lib_pubsub.archive_itemstore(archive, node_config, nil, node_name);
8213
e1272aeef31c mod_pubsub: Add item persistence using mod_storage_*’s archive store.
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parents: 8210
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47 end
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48
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49 function simple_broadcast(kind, node, jids, item, actor, node_obj)
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50 if node_obj then
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51 if node_obj.config["notify_"..kind] == false then
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52 return;
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53 end
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54 end
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82fad995a149 util.pubsub: Pass "retract" as the type of such broadcasts
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55 if kind == "retract" then
82fad995a149 util.pubsub: Pass "retract" as the type of such broadcasts
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56 kind = "items"; -- XEP-0060 signals retraction in an <items> container
82fad995a149 util.pubsub: Pass "retract" as the type of such broadcasts
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57 end
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58
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59 if item then
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60 item = st.clone(item);
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61 item.attr.xmlns = nil; -- Clear the pubsub namespace
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62 if expose_publisher and actor then
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63 item.attr.publisher = actor
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64 end
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65 end
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66
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67 local id = new_id();
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68 local msg_type = node_obj and node_obj.config.message_type or "headline";
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69 local message = st.message({ from = module.host, type = msg_type, id = id })
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70 :tag("event", { xmlns = xmlns_pubsub_event })
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71 :tag(kind, { node = node })
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72
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73 if item then
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74 message:add_child(item);
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75 end
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76
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77 local summary;
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78 -- Compose a sensible textual representation of at least Atom payloads
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79 if item and item.tags[1] then
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80 local payload = item.tags[1];
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81 summary = module:fire_event("pubsub-summary/"..payload.attr.xmlns, {
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82 kind = kind, node = node, jids = jids, actor = actor, item = item, payload = payload,
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83 });
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84 end
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85
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86 for jid, options in pairs(jids) do
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87 local new_stanza = st.clone(message);
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18cd5102253c mod_pubsub: Skip checks for adding body if no body generated
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88 if summary and type(options) == "table" and options["pubsub#include_body"] then
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89 new_stanza:body(summary);
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90 end
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91 new_stanza.attr.to = jid;
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92 module:send(new_stanza);
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93 end
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94 end
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95
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96 local max_max_items = module:get_option_number("pubsub_max_items", 256);
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97 function check_node_config(node, actor, new_config) -- luacheck: ignore 212/actor 212/node
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98 if (new_config["max_items"] or 1) > max_max_items then
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99 return false;
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100 end
9101
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101 if new_config["access_model"] ~= "whitelist" and new_config["access_model"] ~= "open" then
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102 return false;
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103 end
9100
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104 return true;
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105 end
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106
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Kim Alvefur <zash@zash.se>
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107 function is_item_stanza(item)
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108 return st.is_stanza(item) and item.attr.xmlns == xmlns_pubsub and item.name == "item";
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109 end
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110
9045
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111 module:hook("pubsub-summary/http://www.w3.org/2005/Atom", function (event)
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112 local payload = event.item;
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113 local title = payload:get_child_text("title");
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114 local summary = payload:get_child_text("summary");
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115 if not summary and title then
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116 local author = payload:find("author/name#");
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117 summary = title;
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118 if author then
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119 summary = author .. " posted " .. summary;
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120 end
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121 end
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122 return summary;
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123 end);
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124
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125 module:hook("iq/host/"..xmlns_pubsub..":pubsub", handle_pubsub_iq);
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126 module:hook("iq/host/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq);
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127
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128 local function add_disco_features_from_service(service) --luacheck: ignore 431/service
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129 for feature in lib_pubsub.get_feature_set(service) do
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130 module:add_feature(xmlns_pubsub.."#"..feature);
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131 end
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132 end
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133
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134 module:hook("host-disco-info-node", function (event)
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135 return lib_pubsub.handle_disco_info_node(event, service);
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136 end);
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137
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138 module:hook("host-disco-items-node", function (event)
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139 return lib_pubsub.handle_disco_items_node(event, service);
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140 end);
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141
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142
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143 module:hook("host-disco-items", function (event)
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144 local stanza, reply = event.stanza, event.reply;
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145 local ok, ret = service:get_nodes(stanza.attr.from);
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146 if not ok then
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147 return;
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148 end
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149 for node, node_obj in pairs(ret) do
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150 reply:tag("item", { jid = module.host, node = node, name = node_obj.config.name }):up();
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151 end
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152 end);
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153
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154 local admin_aff = module:get_option_string("default_admin_affiliation", "owner");
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155 local function get_affiliation(jid)
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156 local bare_jid = jid_bare(jid);
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157 if bare_jid == module.host or usermanager.is_admin(bare_jid, module.host) then
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158 return admin_aff;
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159 end
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160 end
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161
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162 function get_service()
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163 return service;
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164 end
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165
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166 function set_service(new_service)
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167 service = new_service;
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168 module.environment.service = service;
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169 add_disco_features_from_service(service);
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170 end
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171
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172 function module.save()
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173 return { service = service };
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174 end
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175
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176 function module.restore(data)
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177 set_service(data.service);
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178 end
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179
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180 function module.load()
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181 if module.reloading then return; end
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182
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183 set_service(pubsub.new({
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184 autocreate_on_publish = autocreate_on_publish;
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185 autocreate_on_subscribe = autocreate_on_subscribe;
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186
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187 nodestore = node_store;
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188 itemstore = create_simple_itemstore;
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189 broadcaster = simple_broadcast;
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190 itemcheck = is_item_stanza;
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191 check_node_config = check_node_config;
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192 get_affiliation = get_affiliation;
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193
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194 normalize_jid = jid_bare;
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195 }));
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196 end