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plugins/mod_pep_plus.lua @ 8984:fa80b3231a02
util.dataforms: More robust handling of field values, especially booleans
Ensure that a non-nil data[field_name] always overrides the field's default,
and that values of boolean 'false' are always rendered in the form.
author | Matthew Wild <mwild1@gmail.com> |
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date | Sat, 07 Jul 2018 12:11:52 +0100 |
parent | 8982:4a576c39bb2f |
child | 9029:c5e738b54d77 |
rev | line source |
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1 local pubsub = require "util.pubsub"; |
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2 local jid_bare = require "util.jid".bare; |
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3 local jid_split = require "util.jid".split; |
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4 local jid_join = require "util.jid".join; |
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5 local set_new = require "util.set".new; |
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6 local st = require "util.stanza"; |
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7 local calculate_hash = require "util.caps".calculate_hash; |
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8 local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed; |
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9 local cache = require "util.cache"; |
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10 local set = require "util.set"; |
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11 |
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12 local xmlns_pubsub = "http://jabber.org/protocol/pubsub"; |
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13 local xmlns_pubsub_event = "http://jabber.org/protocol/pubsub#event"; |
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14 local xmlns_pubsub_owner = "http://jabber.org/protocol/pubsub#owner"; |
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15 |
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16 local lib_pubsub = module:require "pubsub"; |
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17 |
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18 local empty_set = set_new(); |
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19 |
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20 local services = {}; |
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21 local recipients = {}; |
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22 local hash_map = {}; |
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23 |
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24 local host = module.host; |
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25 |
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26 local node_config = module:open_store("pep", "map"); |
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27 local known_nodes = module:open_store("pep"); |
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28 |
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29 function module.save() |
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30 return { services = services }; |
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31 end |
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32 |
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33 function module.restore(data) |
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34 services = data.services; |
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35 end |
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36 |
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37 function is_item_stanza(item) |
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38 return st.is_stanza(item) and item.attr.xmlns == xmlns_pubsub and item.name == "item"; |
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39 end |
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40 |
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41 local function subscription_presence(username, recipient) |
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42 local user_bare = jid_join(username, host); |
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43 local recipient_bare = jid_bare(recipient); |
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44 if (recipient_bare == user_bare) then return true; end |
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45 return is_contact_subscribed(username, host, recipient_bare); |
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46 end |
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47 |
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48 local function nodestore(username) |
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49 -- luacheck: ignore 212/self |
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50 local store = {}; |
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51 function store:get(node) |
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52 local data, err = node_config:get(username, node) |
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53 if data == true then |
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54 -- COMPAT Previously stored only a boolean representing 'persist_items' |
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55 data = { |
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56 name = node; |
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57 config = {}; |
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58 subscribers = {}; |
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59 affiliations = {}; |
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60 }; |
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61 end |
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62 return data, err; |
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63 end |
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64 function store:set(node, data) |
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65 return node_config:set(username, node, data); |
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66 end |
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67 function store:users() |
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68 return pairs(known_nodes:get(username) or {}); |
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69 end |
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70 return store; |
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71 end |
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72 |
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73 local function simple_itemstore(username) |
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74 return function (config, node) |
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75 if config["persist_items"] then |
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76 module:log("debug", "Creating new persistent item store for user %s, node %q", username, node); |
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77 local archive = module:open_store("pep_"..node, "archive"); |
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78 return lib_pubsub.archive_itemstore(archive, config, username, node, false); |
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79 else |
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80 module:log("debug", "Creating new ephemeral item store for user %s, node %q", username, node); |
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81 return cache.new(tonumber(config["max_items"])); |
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82 end |
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83 end |
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84 end |
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85 |
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86 local function get_broadcaster(username) |
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87 local user_bare = jid_join(username, host); |
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88 local function simple_broadcast(kind, node, jids, item) |
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89 local message = st.message({ from = user_bare, type = "headline" }) |
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90 :tag("event", { xmlns = xmlns_pubsub_event }) |
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91 :tag(kind, { node = node }); |
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92 if item then |
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93 item = st.clone(item); |
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94 item.attr.xmlns = nil; -- Clear the pubsub namespace |
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95 message:add_child(item); |
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96 end |
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97 for jid in pairs(jids) do |
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98 module:log("debug", "Sending notification to %s from %s: %s", jid, user_bare, tostring(item)); |
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99 message.attr.to = jid; |
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100 module:send(message); |
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101 end |
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102 end |
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103 return simple_broadcast; |
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104 end |
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105 |
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106 function get_pep_service(username) |
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107 module:log("debug", "get_pep_service(%q)", username); |
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108 local user_bare = jid_join(username, host); |
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109 local service = services[username]; |
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110 if service then |
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111 return service; |
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112 end |
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113 service = pubsub.new({ |
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114 capabilities = { |
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115 none = { |
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116 create = false; |
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117 publish = false; |
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118 retract = false; |
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119 get_nodes = false; |
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120 |
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121 subscribe = false; |
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122 unsubscribe = false; |
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123 get_subscription = false; |
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124 get_subscriptions = false; |
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125 get_items = false; |
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126 |
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127 subscribe_other = false; |
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128 unsubscribe_other = false; |
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129 get_subscription_other = false; |
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130 get_subscriptions_other = false; |
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131 |
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132 be_subscribed = true; |
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133 be_unsubscribed = true; |
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134 |
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135 set_affiliation = false; |
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136 }; |
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137 subscriber = { |
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138 create = false; |
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139 publish = false; |
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140 retract = false; |
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141 get_nodes = true; |
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142 |
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143 subscribe = true; |
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144 unsubscribe = true; |
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145 get_subscription = true; |
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146 get_subscriptions = true; |
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147 get_items = true; |
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148 |
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149 subscribe_other = false; |
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150 unsubscribe_other = false; |
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151 get_subscription_other = false; |
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152 get_subscriptions_other = false; |
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153 |
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154 be_subscribed = true; |
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155 be_unsubscribed = true; |
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156 |
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157 set_affiliation = false; |
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158 }; |
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159 publisher = { |
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160 create = false; |
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161 publish = true; |
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162 retract = true; |
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163 get_nodes = true; |
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164 |
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165 subscribe = true; |
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166 unsubscribe = true; |
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167 get_subscription = true; |
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168 get_subscriptions = true; |
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169 get_items = true; |
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170 |
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171 subscribe_other = false; |
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172 unsubscribe_other = false; |
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173 get_subscription_other = false; |
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174 get_subscriptions_other = false; |
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175 |
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176 be_subscribed = true; |
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177 be_unsubscribed = true; |
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178 |
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179 set_affiliation = false; |
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180 }; |
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181 owner = { |
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182 create = true; |
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183 publish = true; |
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184 retract = true; |
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185 delete = true; |
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186 get_nodes = true; |
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187 configure = true; |
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188 |
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189 subscribe = true; |
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190 unsubscribe = true; |
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191 get_subscription = true; |
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192 get_subscriptions = true; |
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193 get_items = true; |
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194 |
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195 |
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196 subscribe_other = true; |
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197 unsubscribe_other = true; |
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198 get_subscription_other = true; |
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199 get_subscriptions_other = true; |
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200 |
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201 be_subscribed = true; |
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202 be_unsubscribed = true; |
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203 |
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204 set_affiliation = true; |
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205 }; |
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206 }; |
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207 |
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208 node_defaults = { |
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209 ["max_items"] = 1; |
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210 ["persist_items"] = true; |
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211 }; |
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212 |
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213 autocreate_on_publish = true; |
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214 autocreate_on_subscribe = true; |
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215 |
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216 nodestore = nodestore(username); |
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217 itemstore = simple_itemstore(username); |
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218 broadcaster = get_broadcaster(username); |
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219 itemcheck = is_item_stanza; |
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220 get_affiliation = function (jid) |
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221 if jid_bare(jid) == user_bare then |
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222 return "owner"; |
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223 elseif subscription_presence(username, jid) then |
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224 return "subscriber"; |
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225 end |
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226 end; |
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227 |
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228 normalize_jid = jid_bare; |
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229 }); |
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230 local nodes, err = known_nodes:get(username); |
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231 if nodes then |
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232 module:log("debug", "Restoring nodes for user %s", username); |
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233 for node in pairs(nodes) do |
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234 module:log("debug", "Restoring node %q", node); |
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235 service:create(node, true); |
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236 end |
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237 elseif err then |
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238 module:log("error", "Could not restore nodes for %s: %s", username, err); |
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239 else |
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240 module:log("debug", "No known nodes"); |
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241 end |
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242 services[username] = service; |
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243 module:add_item("pep-service", { service = service, jid = user_bare }); |
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244 return service; |
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245 end |
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246 |
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247 function handle_pubsub_iq(event) |
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248 local origin, stanza = event.origin, event.stanza; |
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249 local service_name = origin.username; |
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250 if stanza.attr.to ~= nil then |
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251 service_name = jid_split(stanza.attr.to); |
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252 end |
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253 local service = get_pep_service(service_name); |
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254 |
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255 return lib_pubsub.handle_pubsub_iq(event, service) |
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256 end |
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257 |
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258 module:hook("iq/bare/"..xmlns_pubsub..":pubsub", handle_pubsub_iq); |
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259 module:hook("iq/bare/"..xmlns_pubsub_owner..":pubsub", handle_pubsub_iq); |
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260 |
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261 module:add_identity("pubsub", "pep", module:get_option_string("name", "Prosody")); |
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262 module:add_feature("http://jabber.org/protocol/pubsub#publish"); |
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263 |
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264 local function get_caps_hash_from_presence(stanza, current) |
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265 local t = stanza.attr.type; |
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266 if not t then |
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267 local child = stanza:get_child("c", "http://jabber.org/protocol/caps"); |
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268 if child then |
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269 local attr = child.attr; |
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270 if attr.hash then -- new caps |
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271 if attr.hash == 'sha-1' and attr.node and attr.ver then |
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272 return attr.ver, attr.node.."#"..attr.ver; |
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273 end |
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274 else -- legacy caps |
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275 if attr.node and attr.ver then |
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276 return attr.node.."#"..attr.ver.."#"..(attr.ext or ""), attr.node.."#"..attr.ver; |
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277 end |
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278 end |
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279 end |
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280 return; -- no or bad caps |
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281 elseif t == "unavailable" or t == "error" then |
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282 return; |
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283 end |
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284 return current; -- no caps, could mean caps optimization, so return current |
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285 end |
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286 |
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287 local function resend_last_item(jid, node, service) |
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288 local ok, id, item = service:get_last_item(node, jid); |
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289 if not ok then return; end |
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290 if not id then return; end |
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291 service.config.broadcaster("items", node, { [jid] = true }, item); |
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292 end |
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293 |
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294 local function update_subscriptions(recipient, service_name, nodes) |
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295 nodes = nodes or empty_set; |
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296 |
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297 local service_recipients = recipients[service_name]; |
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298 if not service_recipients then |
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299 service_recipients = {}; |
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300 recipients[service_name] = service_recipients; |
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301 end |
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302 |
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303 local current = service_recipients[recipient]; |
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304 if not current or type(current) ~= "table" then |
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305 current = empty_set; |
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306 end |
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307 |
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308 if (current == empty_set or current:empty()) and (nodes == empty_set or nodes:empty()) then |
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309 return; |
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310 end |
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311 |
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312 local service = get_pep_service(service_name); |
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313 for node in current - nodes do |
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314 service:remove_subscription(node, recipient, recipient); |
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315 end |
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316 |
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317 for node in nodes - current do |
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318 service:add_subscription(node, recipient, recipient); |
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319 resend_last_item(recipient, node, service); |
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320 end |
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321 |
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322 if nodes == empty_set or nodes:empty() then |
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323 nodes = nil; |
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324 end |
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325 |
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326 service_recipients[recipient] = nodes; |
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327 end |
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328 |
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329 module:hook("presence/bare", function(event) |
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330 -- inbound presence to bare JID received |
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331 local origin, stanza = event.origin, event.stanza; |
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332 local t = stanza.attr.type; |
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333 local is_self = not stanza.attr.to; |
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334 local username = jid_split(stanza.attr.to); |
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335 local user_bare = jid_bare(stanza.attr.to); |
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336 if is_self then |
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337 username = origin.username; |
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338 user_bare = jid_join(username, host); |
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339 end |
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340 |
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341 if not t then -- available presence |
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342 if is_self or subscription_presence(username, stanza.attr.from) then |
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343 local recipient = stanza.attr.from; |
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344 local current = recipients[username] and recipients[username][recipient]; |
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345 local hash, query_node = get_caps_hash_from_presence(stanza, current); |
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346 if current == hash or (current and current == hash_map[hash]) then return; end |
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347 if not hash then |
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348 update_subscriptions(recipient, username); |
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349 else |
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350 recipients[username] = recipients[username] or {}; |
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351 if hash_map[hash] then |
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352 update_subscriptions(recipient, username, hash_map[hash]); |
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353 else |
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354 recipients[username][recipient] = hash; |
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355 local from_bare = origin.type == "c2s" and origin.username.."@"..origin.host; |
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356 if is_self or origin.type ~= "c2s" or (recipients[from_bare] and recipients[from_bare][origin.full_jid]) ~= hash then |
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357 -- COMPAT from ~= stanza.attr.to because OneTeam can't deal with missing from attribute |
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358 origin.send( |
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359 st.stanza("iq", {from=user_bare, to=stanza.attr.from, id="disco", type="get"}) |
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360 :tag("query", {xmlns = "http://jabber.org/protocol/disco#info", node = query_node}) |
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361 ); |
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362 end |
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363 end |
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364 end |
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365 end |
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366 elseif t == "unavailable" then |
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367 update_subscriptions(stanza.attr.from, username); |
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368 elseif not is_self and t == "unsubscribe" then |
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369 local from = jid_bare(stanza.attr.from); |
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370 local subscriptions = recipients[username]; |
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371 if subscriptions then |
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372 for subscriber in pairs(subscriptions) do |
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373 if jid_bare(subscriber) == from then |
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374 update_subscriptions(subscriber, username); |
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375 end |
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376 end |
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377 end |
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378 end |
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379 end, 10); |
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380 |
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381 module:hook("iq-result/bare/disco", function(event) |
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382 local origin, stanza = event.origin, event.stanza; |
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383 local disco = stanza:get_child("query", "http://jabber.org/protocol/disco#info"); |
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384 if not disco then |
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385 return; |
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386 end |
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387 |
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388 -- Process disco response |
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389 local is_self = stanza.attr.to == nil; |
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390 local user_bare = jid_bare(stanza.attr.to); |
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391 local username = jid_split(stanza.attr.to); |
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392 if is_self then |
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393 username = origin.username; |
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394 user_bare = jid_join(username, host); |
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395 end |
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396 local contact = stanza.attr.from; |
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397 local current = recipients[username] and recipients[username][contact]; |
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398 if type(current) ~= "string" then return; end -- check if waiting for recipient's response |
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399 local ver = current; |
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400 if not string.find(current, "#") then |
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401 ver = calculate_hash(disco.tags); -- calculate hash |
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402 end |
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403 local notify = set_new(); |
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404 for _, feature in pairs(disco.tags) do |
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405 if feature.name == "feature" and feature.attr.var then |
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406 local nfeature = feature.attr.var:match("^(.*)%+notify$"); |
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407 if nfeature then notify:add(nfeature); end |
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408 end |
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409 end |
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410 hash_map[ver] = notify; -- update hash map |
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411 if is_self then |
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412 -- Optimization: Fiddle with other local users |
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413 for jid, item in pairs(origin.roster) do -- for all interested contacts |
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414 if jid then |
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415 local contact_node, contact_host = jid_split(jid); |
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416 if contact_host == host and item.subscription == "both" or item.subscription == "from" then |
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417 update_subscriptions(user_bare, contact_node, notify); |
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418 end |
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419 end |
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420 end |
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421 end |
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422 update_subscriptions(contact, username, notify); |
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423 end); |
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424 |
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425 module:hook("account-disco-info-node", function(event) |
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426 local stanza, origin = event.stanza, event.origin; |
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427 local service_name = origin.username; |
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428 if stanza.attr.to ~= nil then |
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429 service_name = jid_split(stanza.attr.to); |
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430 end |
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431 local service = get_pep_service(service_name); |
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432 return lib_pubsub.handle_disco_info_node(event, service); |
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433 end); |
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434 |
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435 module:hook("account-disco-info", function(event) |
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436 local origin, reply = event.origin, event.reply; |
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|
437 |
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438 reply:tag('identity', {category='pubsub', type='pep'}):up(); |
8319
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439 |
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440 local username = jid_split(reply.attr.from) or origin.username; |
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441 local service = get_pep_service(username); |
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|
442 |
8342
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443 local supported_features = lib_pubsub.get_feature_set(service) + set.new{ |
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444 -- Features not covered by the above |
8332
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445 "access-presence", |
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446 "auto-subscribe", |
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447 "filtered-notifications", |
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448 "last-published", |
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449 "persistent-items", |
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450 "presence-notifications", |
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|
451 "presence-subscribe", |
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452 }; |
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453 |
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454 for feature in supported_features do |
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455 reply:tag('feature', {var=xmlns_pubsub.."#"..feature}):up(); |
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456 end |
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457 end); |
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458 |
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459 module:hook("account-disco-items-node", function(event) |
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460 local stanza, origin = event.stanza, event.origin; |
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461 local is_self = stanza.attr.to == nil; |
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462 local username = jid_split(stanza.attr.to); |
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463 if is_self then |
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464 username = origin.username; |
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465 end |
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466 local service = get_pep_service(username); |
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467 return lib_pubsub.handle_disco_items_node(event, service); |
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468 end); |
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469 |
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470 module:hook("account-disco-items", function(event) |
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471 local reply, stanza, origin = event.reply, event.stanza, event.origin; |
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472 |
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473 local is_self = stanza.attr.to == nil; |
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474 local user_bare = jid_bare(stanza.attr.to); |
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475 local username = jid_split(stanza.attr.to); |
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476 if is_self then |
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477 username = origin.username; |
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478 user_bare = jid_join(username, host); |
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479 end |
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480 local service = get_pep_service(username); |
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481 |
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482 local ok, ret = service:get_nodes(jid_bare(stanza.attr.from)); |
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483 if not ok then return; end |
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484 |
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485 for node, node_obj in pairs(ret) do |
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486 reply:tag("item", { jid = user_bare, node = node, name = node_obj.config.name }):up(); |
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487 end |
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488 end); |