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plugins/muc/mod_muc.lua @ 3589:1792610e169e
MUC: Return true from the stanza handler to suppress error responses.
author | Waqas Hussain <waqas20@gmail.com> |
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date | Wed, 10 Nov 2010 05:31:19 +0500 |
parent | 3577:2cc135cba25b |
child | 3604:3e89f0509967 |
rev | line source |
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1 -- Prosody IM |
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2 -- Copyright (C) 2008-2010 Matthew Wild |
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3 -- Copyright (C) 2008-2010 Waqas Hussain |
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4 -- |
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5 -- This project is MIT/X11 licensed. Please see the |
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6 -- COPYING file in the source package for more information. |
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7 -- |
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8 |
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9 |
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10 if module:get_host_type() ~= "component" then |
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11 error("MUC should be loaded as a component, please see http://prosody.im/doc/components", 0); |
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12 end |
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13 |
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14 local muc_host = module:get_host(); |
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15 local muc_name = module:get_option("name"); |
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16 if type(muc_name) ~= "string" then muc_name = "Prosody Chatrooms"; end |
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17 local restrict_room_creation = module:get_option("restrict_room_creation"); |
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18 if restrict_room_creation then |
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19 if restrict_room_creation == true then |
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20 restrict_room_creation = "admin"; |
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21 elseif restrict_room_creation ~= "admin" and restrict_room_creation ~= "local" then |
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22 restrict_room_creation = nil; |
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23 end |
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24 end |
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25 local muc_new_room = module:require "muc".new_room; |
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26 local register_component = require "core.componentmanager".register_component; |
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27 local deregister_component = require "core.componentmanager".deregister_component; |
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28 local jid_split = require "util.jid".split; |
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29 local jid_bare = require "util.jid".bare; |
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30 local st = require "util.stanza"; |
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31 local uuid_gen = require "util.uuid".generate; |
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32 local datamanager = require "util.datamanager"; |
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33 local um_is_admin = require "core.usermanager".is_admin; |
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34 |
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35 rooms = {}; |
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36 local rooms = rooms; |
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37 local persistent_rooms = datamanager.load(nil, muc_host, "persistent") or {}; |
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38 local component; |
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39 |
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40 -- Configurable options |
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41 local max_history_messages = module:get_option_number("max_history_messages"); |
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42 |
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43 local function is_admin(jid) |
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44 return um_is_admin(jid, module.host); |
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45 end |
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46 |
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47 local function room_route_stanza(room, stanza) core_post_stanza(component, stanza); end |
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48 local function room_save(room, forced) |
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49 local node = jid_split(room.jid); |
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50 persistent_rooms[room.jid] = room._data.persistent; |
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51 if room._data.persistent then |
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52 local history = room._data.history; |
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53 room._data.history = nil; |
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54 local data = { |
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55 jid = room.jid; |
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56 _data = room._data; |
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57 _affiliations = room._affiliations; |
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58 }; |
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59 datamanager.store(node, muc_host, "config", data); |
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60 room._data.history = history; |
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61 elseif forced then |
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62 datamanager.store(node, muc_host, "config", nil); |
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63 end |
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64 if forced then datamanager.store(nil, muc_host, "persistent", persistent_rooms); end |
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65 end |
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66 |
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67 for jid in pairs(persistent_rooms) do |
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68 local node = jid_split(jid); |
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69 local data = datamanager.load(node, muc_host, "config") or {}; |
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70 local room = muc_new_room(jid, { |
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71 history_length = max_history_messages; |
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72 }); |
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73 room._data = data._data; |
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74 room._data.history_length = max_history_messages; --TODO: Need to allow per-room with a global limit |
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75 room._affiliations = data._affiliations; |
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76 room.route_stanza = room_route_stanza; |
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77 room.save = room_save; |
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78 rooms[jid] = room; |
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79 end |
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80 |
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81 local host_room = muc_new_room(muc_host, { |
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82 history_length = max_history_messages; |
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83 }); |
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84 host_room.route_stanza = room_route_stanza; |
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85 host_room.save = room_save; |
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86 |
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87 local function get_disco_info(stanza) |
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88 return st.iq({type='result', id=stanza.attr.id, from=muc_host, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info") |
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89 :tag("identity", {category='conference', type='text', name=muc_name}):up() |
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90 :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply |
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91 end |
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92 local function get_disco_items(stanza) |
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93 local reply = st.iq({type='result', id=stanza.attr.id, from=muc_host, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items"); |
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94 for jid, room in pairs(rooms) do |
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95 if not room:is_hidden() then |
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96 reply:tag("item", {jid=jid, name=room:get_name()}):up(); |
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97 end |
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98 end |
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99 return reply; -- TODO cache disco reply |
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100 end |
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101 |
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102 local function handle_to_domain(origin, stanza) |
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103 local type = stanza.attr.type; |
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104 if type == "error" or type == "result" then return; end |
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105 if stanza.name == "iq" and type == "get" then |
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106 local xmlns = stanza.tags[1].attr.xmlns; |
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107 if xmlns == "http://jabber.org/protocol/disco#info" then |
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108 origin.send(get_disco_info(stanza)); |
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109 elseif xmlns == "http://jabber.org/protocol/disco#items" then |
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110 origin.send(get_disco_items(stanza)); |
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111 elseif xmlns == "http://jabber.org/protocol/muc#unique" then |
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112 origin.send(st.reply(stanza):tag("unique", {xmlns = xmlns}):text(uuid_gen())); -- FIXME Random UUIDs can theoretically have collisions |
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113 else |
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114 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- TODO disco/etc |
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115 end |
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116 else |
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117 host_room:handle_stanza(origin, stanza); |
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118 --origin.send(st.error_reply(stanza, "cancel", "service-unavailable", "The muc server doesn't deal with messages and presence directed at it")); |
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119 end |
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120 end |
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121 |
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122 function stanza_handler(event) |
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123 local origin, stanza = event.origin, event.stanza; |
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124 local to_node, to_host, to_resource = jid_split(stanza.attr.to); |
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125 if to_node then |
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126 local bare = to_node.."@"..to_host; |
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127 if to_host == muc_host or bare == muc_host then |
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128 local room = rooms[bare]; |
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129 if not room then |
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130 if not(restrict_room_creation) or |
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131 (restrict_room_creation == "admin" and is_admin(stanza.attr.from)) or |
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132 (restrict_room_creation == "local" and select(2, jid_split(stanza.attr.from)) == module.host:gsub("^[^%.]+%.", "")) then |
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133 room = muc_new_room(bare, { |
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134 history_length = max_history_messages; |
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135 }); |
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136 room.route_stanza = room_route_stanza; |
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137 room.save = room_save; |
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138 rooms[bare] = room; |
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139 end |
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140 end |
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141 if room then |
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142 room:handle_stanza(origin, stanza); |
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143 if not next(room._occupants) and not persistent_rooms[room.jid] then -- empty, non-persistent room |
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144 rooms[bare] = nil; -- discard room |
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145 end |
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146 else |
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147 origin.send(st.error_reply(stanza, "cancel", "not-allowed")); |
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148 end |
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149 else --[[not for us?]] end |
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150 return true; |
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151 end |
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152 -- to the main muc domain |
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153 handle_to_domain(origin, stanza); |
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154 return true; |
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155 end |
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156 module:hook("iq/bare", stanza_handler); |
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157 module:hook("message/bare", stanza_handler); |
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158 module:hook("presence/bare", stanza_handler); |
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159 module:hook("iq/full", stanza_handler); |
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160 module:hook("message/full", stanza_handler); |
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161 module:hook("presence/full", stanza_handler); |
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162 module:hook("iq/host", stanza_handler); |
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163 module:hook("message/host", stanza_handler); |
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164 module:hook("presence/host", stanza_handler); |
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165 |
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166 component = register_component(muc_host, function() end); |
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167 function component.send(stanza) -- FIXME do a generic fix |
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168 if stanza.attr.type == "result" or stanza.attr.type == "error" then |
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169 core_post_stanza(component, stanza); |
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170 else error("component.send only supports result and error stanzas at the moment"); end |
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171 end |
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172 |
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173 prosody.hosts[module:get_host()].muc = { rooms = rooms }; |
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174 |
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175 module.unload = function() |
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176 deregister_component(muc_host); |
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177 end |
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178 module.save = function() |
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179 return {rooms = rooms}; |
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180 end |
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181 module.restore = function(data) |
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182 for jid, oldroom in pairs(data.rooms or {}) do |
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183 local room = muc_new_room(jid); |
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184 room._jid_nick = oldroom._jid_nick; |
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185 room._occupants = oldroom._occupants; |
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186 room._data = oldroom._data; |
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187 room._affiliations = oldroom._affiliations; |
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188 room.route_stanza = room_route_stanza; |
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189 room.save = room_save; |
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190 rooms[jid] = room; |
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191 end |
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192 prosody.hosts[module:get_host()].muc = { rooms = rooms }; |
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193 end |