prosody
d7cae7187943
plugins/mod_pubsub/mod_pubsub.lua

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plugins/mod_pubsub/mod_pubsub.lua @ 10070:d7cae7187943

mod_pubsub: Move a comment to where it makes sense This code has moved but the comment did not follow it.
author Kim Alvefur <zash@zash.se>
date Wed, 10 Jul 2019 19:12:19 +0200
parent 9829:fdc42f685557
child 10673:1a23a58ac84e
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 local storagemanager = require "core.storagemanager";
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7
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8 local xmlns_pubsub = "http://jabber.org/protocol/pubsub";
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9 local xmlns_pubsub_event = "http://jabber.org/protocol/pubsub#event";
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10 local xmlns_pubsub_owner = "http://jabber.org/protocol/pubsub#owner";
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11
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12 local autocreate_on_publish = module:get_option_boolean("autocreate_on_publish", false);
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13 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
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14 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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15 local expose_publisher = module:get_option_boolean("expose_publisher", false)
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16
8416d4619d80 mod_pubsub: Split out handlers into a module library
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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
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630e7224a65f mod_pubsub: Utilize mod_disco, instead of reimplementing disco handling
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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 return lib_pubsub.handle_pubsub_iq(event, service);
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27 end
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28
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29 -- An itemstore supports the following methods:
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30 -- items(): iterator over (id, item)
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31 -- get(id): return item with id
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32 -- set(id, item): set id to item
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33 -- clear(): clear all items
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34 -- resize(n): set new limit and trim oldest items
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35 -- tail(): return the latest item
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36
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37 -- A nodestore supports the following methods:
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38 -- set(node_name, node_data)
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39 -- get(node_name)
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40 -- users(): iterator over (node_name)
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41
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42
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43 local node_store = module:open_store(module.name.."_nodes");
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44
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3b86134c56ea mod_pubsub: Some variable renames for clarity
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45 local function create_simple_itemstore(node_config, node_name)
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46 local driver = storagemanager.get_driver(module.host, "pubsub_data");
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47 local archive = driver:open("pubsub_"..node_name, "archive");
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48 return lib_pubsub.archive_itemstore(archive, node_config, nil, node_name);
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e1272aeef31c mod_pubsub: Add item persistence using mod_storage_*’s archive store.
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49 end
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50
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51 function simple_broadcast(kind, node, jids, item, actor, node_obj)
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52 if node_obj then
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53 if node_obj.config["notify_"..kind] == false then
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54 return;
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55 end
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56 end
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82fad995a149 util.pubsub: Pass "retract" as the type of such broadcasts
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57 if kind == "retract" then
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58 kind = "items"; -- XEP-0060 signals retraction in an <items> container
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59 end
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60
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61 if item then
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62 item = st.clone(item);
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63 item.attr.xmlns = nil; -- Clear the pubsub namespace
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64 if kind == "items" then
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ef2616ade453 mod_pubsub: Add support for thin notifications (without the full payload)
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65 if node_obj and node_obj.config.include_payload == false then
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66 item:maptags(function () return nil; end);
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67 end
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68 if expose_publisher and actor then
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69 item.attr.publisher = actor
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70 end
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71 end
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72 end
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73
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74 local id = new_id();
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75 local msg_type = node_obj and node_obj.config.message_type or "headline";
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76 local message = st.message({ from = module.host, type = msg_type, id = id })
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77 :tag("event", { xmlns = xmlns_pubsub_event })
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78 :tag(kind, { node = node });
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79
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80 if item then
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81 message:add_child(item);
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82 end
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83
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84 local summary;
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85 if item and item.tags[1] then
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86 local payload = item.tags[1];
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87 summary = module:fire_event("pubsub-summary/"..payload.attr.xmlns, {
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88 kind = kind, node = node, jids = jids, actor = actor, item = item, payload = payload,
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89 });
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90 end
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91
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92 for jid, options in pairs(jids) do
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93 local new_stanza = st.clone(message);
9044
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Kim Alvefur <zash@zash.se>
parents: 9043
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94 if summary and type(options) == "table" and options["pubsub#include_body"] then
9039
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95 new_stanza:body(summary);
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96 end
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Kim Alvefur <zash@zash.se>
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97 new_stanza.attr.to = jid;
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98 module:send(new_stanza);
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99 end
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100 end
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101
9100
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102 local max_max_items = module:get_option_number("pubsub_max_items", 256);
9724
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103 function check_node_config(node, actor, new_config) -- luacheck: ignore 212/node 212/actor
9100
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104 if (new_config["max_items"] or 1) > max_max_items then
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105 return false;
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106 end
9725
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107 if new_config["access_model"] ~= "whitelist"
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108 and new_config["access_model"] ~= "open" then
9101
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Kim Alvefur <zash@zash.se>
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109 return false;
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110 end
9100
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111 return true;
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112 end
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113
8695
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Kim Alvefur <zash@zash.se>
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114 function is_item_stanza(item)
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115 return st.is_stanza(item) and item.attr.xmlns == xmlns_pubsub and item.name == "item";
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116 end
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117
10070
d7cae7187943 mod_pubsub: Move a comment to where it makes sense
Kim Alvefur <zash@zash.se>
parents: 9829
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118 -- Compose a textual representation of Atom payloads
9045
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119 module:hook("pubsub-summary/http://www.w3.org/2005/Atom", function (event)
9234
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Kim Alvefur <zash@zash.se>
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120 local payload = event.payload;
9045
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121 local title = payload:get_child_text("title");
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122 local summary = payload:get_child_text("summary");
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123 if not summary and title then
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124 local author = payload:find("author/name#");
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125 summary = title;
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126 if author then
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127 summary = author .. " posted " .. summary;
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128 end
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129 end
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130 return summary;
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131 end);
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132
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133 module:hook("iq/host/"..xmlns_pubsub..":pubsub", handle_pubsub_iq);
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134 module:hook("iq/host/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq);
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135
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136 local function add_disco_features_from_service(service) --luacheck: ignore 431/service
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137 for feature in lib_pubsub.get_feature_set(service) do
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138 module:add_feature(xmlns_pubsub.."#"..feature);
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139 end
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140 end
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141
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142 module:hook("host-disco-info-node", function (event)
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143 return lib_pubsub.handle_disco_info_node(event, service);
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144 end);
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145
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146 module:hook("host-disco-items-node", function (event)
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147 return lib_pubsub.handle_disco_items_node(event, service);
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148 end);
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149
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150
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151 module:hook("host-disco-items", function (event)
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152 local stanza, reply = event.stanza, event.reply;
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153 local ok, ret = service:get_nodes(stanza.attr.from);
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154 if not ok then
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155 return;
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156 end
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157 for node, node_obj in pairs(ret) do
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158 reply:tag("item", { jid = module.host, node = node, name = node_obj.config.title }):up();
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159 end
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160 end);
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161
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162 local admin_aff = module:get_option_string("default_admin_affiliation", "owner");
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163 local function get_affiliation(jid)
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164 local bare_jid = jid_bare(jid);
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165 if bare_jid == module.host or usermanager.is_admin(bare_jid, module.host) then
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166 return admin_aff;
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167 end
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168 end
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169
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170 function get_service()
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171 return service;
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172 end
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173
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174 function set_service(new_service)
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175 service = new_service;
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176 module.environment.service = service;
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177 add_disco_features_from_service(service);
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178 end
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179
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180 function module.save()
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181 return { service = service };
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182 end
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183
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184 function module.restore(data)
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185 set_service(data.service);
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186 end
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187
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188 function module.load()
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189 if module.reloading then return; end
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190
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191 set_service(pubsub.new({
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192 autocreate_on_publish = autocreate_on_publish;
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193 autocreate_on_subscribe = autocreate_on_subscribe;
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194
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195 nodestore = node_store;
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Matthew Wild <mwild1@gmail.com>
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196 itemstore = create_simple_itemstore;
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197 broadcaster = simple_broadcast;
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parents: 8505
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198 itemcheck = is_item_stanza;
9100
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parents: 9045
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199 check_node_config = check_node_config;
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200 get_affiliation = get_affiliation;
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201
5690
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202 normalize_jid = jid_bare;
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diff changeset
203 }));
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204 end