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plugins/muc/mod_muc.lua

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plugins/muc/mod_muc.lua @ 5997:2d652afa57e4

MUC: Fire muc-room-destroyed event when the last participant leaves a non-persistent room
author Kim Alvefur <zash@zash.se>
date Sat, 18 Jan 2014 20:14:05 +0100
parent 5943:355f8b59bf1b
child 6000:0f6399c86c10
child 6741:bea3862b6bde
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 -- Prosody IM
2923
b7049746bd29 Update copyright headers for 2010
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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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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 muclib = module:require "muc";
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26 local muc_new_room = muclib.new_room;
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27 local jid_split = require "util.jid".split;
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28 local jid_bare = require "util.jid".bare;
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29 local st = require "util.stanza";
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30 local uuid_gen = require "util.uuid".generate;
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31 local um_is_admin = require "core.usermanager".is_admin;
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32 local hosts = prosody.hosts;
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34 rooms = {};
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35 local rooms = rooms;
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36 local persistent_rooms_storage = module:open_store("persistent");
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37 local persistent_rooms = persistent_rooms_storage:get() or {};
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38 local room_configs = module:open_store("config");
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39
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40 -- Configurable options
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41 muclib.set_max_history_length(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 _set_affiliation = muc_new_room.room_mt.set_affiliation;
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48 local _get_affiliation = muc_new_room.room_mt.get_affiliation;
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49 function muclib.room_mt:get_affiliation(jid)
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50 if is_admin(jid) then return "owner"; end
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51 return _get_affiliation(self, jid);
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52 end
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53 function muclib.room_mt:set_affiliation(actor, jid, affiliation, callback, reason)
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54 if is_admin(jid) then return nil, "modify", "not-acceptable"; end
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55 return _set_affiliation(self, actor, jid, affiliation, callback, reason);
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56 end
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57
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58 local function room_route_stanza(room, stanza) module:send(stanza); end
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59 local function room_save(room, forced)
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60 local node = jid_split(room.jid);
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61 persistent_rooms[room.jid] = room._data.persistent;
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62 if room._data.persistent then
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63 local history = room._data.history;
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64 room._data.history = nil;
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65 local data = {
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66 jid = room.jid;
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67 _data = room._data;
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68 _affiliations = room._affiliations;
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69 };
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70 room_configs:set(node, data);
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71 room._data.history = history;
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72 elseif forced then
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73 room_configs:set(node, nil);
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74 if not next(room._occupants) then -- Room empty
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75 rooms[room.jid] = nil;
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76 end
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77 end
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78 if forced then persistent_rooms_storage:set(nil, persistent_rooms); end
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79 end
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80
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81 function create_room(jid)
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82 local room = muc_new_room(jid);
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83 room.route_stanza = room_route_stanza;
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84 room.save = room_save;
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85 rooms[jid] = room;
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86 module:fire_event("muc-room-created", { room = room });
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87 return room;
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88 end
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89
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90 local persistent_errors = false;
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91 for jid in pairs(persistent_rooms) do
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92 local node = jid_split(jid);
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93 local data = room_configs:get(node);
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94 if data then
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95 local room = create_room(jid);
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96 room._data = data._data;
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97 room._affiliations = data._affiliations;
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98 else -- missing room data
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99 persistent_rooms[jid] = nil;
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100 module:log("error", "Missing data for room '%s', removing from persistent room list", jid);
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101 persistent_errors = true;
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102 end
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103 end
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104 if persistent_errors then persistent_rooms_storage:set(nil, persistent_rooms); end
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105
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106 local host_room = muc_new_room(muc_host);
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107 host_room.route_stanza = room_route_stanza;
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108 host_room.save = room_save;
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109
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110 local function get_disco_info(stanza)
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111 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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112 :tag("identity", {category='conference', type='text', name=muc_name}):up()
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113 :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply
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114 end
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115 local function get_disco_items(stanza)
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116 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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117 for jid, room in pairs(rooms) do
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118 if not room:is_hidden() then
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119 reply:tag("item", {jid=jid, name=room:get_name()}):up();
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120 end
1738
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121 end
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122 return reply; -- TODO cache disco reply
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123 end
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124
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125 local function handle_to_domain(event)
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126 local origin, stanza = event.origin, event.stanza;
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127 local type = stanza.attr.type;
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128 if type == "error" or type == "result" then return; end
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129 if stanza.name == "iq" and type == "get" then
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130 local xmlns = stanza.tags[1].attr.xmlns;
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131 local node = stanza.tags[1].attr.node;
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132 if xmlns == "http://jabber.org/protocol/disco#info" and not node then
1738
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133 origin.send(get_disco_info(stanza));
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134 elseif xmlns == "http://jabber.org/protocol/disco#items" and not node then
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135 origin.send(get_disco_items(stanza));
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136 elseif xmlns == "http://jabber.org/protocol/muc#unique" then
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137 origin.send(st.reply(stanza):tag("unique", {xmlns = xmlns}):text(uuid_gen())); -- FIXME Random UUIDs can theoretically have collisions
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138 else
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139 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- TODO disco/etc
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140 end
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141 else
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142 host_room:handle_stanza(origin, stanza);
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143 --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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144 end
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145 return true;
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146 end
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147
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148 function stanza_handler(event)
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149 local origin, stanza = event.origin, event.stanza;
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150 local bare = jid_bare(stanza.attr.to);
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151 local room = rooms[bare];
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152 if not room then
5058
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diff changeset
153 if stanza.name ~= "presence" then
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diff changeset
154 origin.send(st.error_reply(stanza, "cancel", "item-not-found"));
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155 return true;
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156 end
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157 if not(restrict_room_creation) or
5943
355f8b59bf1b mod_muc: Remove extra parenthesis (thanks janhouse)
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diff changeset
158 is_admin(stanza.attr.from) or
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diff changeset
159 (restrict_room_creation == "local" and select(2, jid_split(stanza.attr.from)) == module.host:gsub("^[^%.]+%.", "")) then
5210
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160 room = create_room(bare);
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161 end
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162 end
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163 if room then
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164 room:handle_stanza(origin, stanza);
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165 if not next(room._occupants) and not persistent_rooms[room.jid] then -- empty, non-persistent room
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Kim Alvefur <zash@zash.se>
parents: 5943
diff changeset
166 module:fire_event("muc-room-destroyed", { room = room });
4370
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167 rooms[bare] = nil; -- discard room
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168 end
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169 else
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diff changeset
170 origin.send(st.error_reply(stanza, "cancel", "not-allowed"));
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171 end
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1792610e169e MUC: Return true from the stanza handler to suppress error responses.
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diff changeset
172 return true;
3560
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173 end
3675
cd3a1ae596b4 MUC: Give stanza handlers a negative priority, to allow mod_iq to process them first.
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diff changeset
174 module:hook("iq/bare", stanza_handler, -1);
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diff changeset
175 module:hook("message/bare", stanza_handler, -1);
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diff changeset
176 module:hook("presence/bare", stanza_handler, -1);
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diff changeset
177 module:hook("iq/full", stanza_handler, -1);
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diff changeset
178 module:hook("message/full", stanza_handler, -1);
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parents: 3628
diff changeset
179 module:hook("presence/full", stanza_handler, -1);
4370
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diff changeset
180 module:hook("iq/host", handle_to_domain, -1);
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diff changeset
181 module:hook("message/host", handle_to_domain, -1);
be14f96290a4 MUC: A little cleanup.
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diff changeset
182 module:hook("presence/host", handle_to_domain, -1);
3560
fb49b63e3fe2 MUC: Use events for hooking stanzas instead of the component stanza handler.
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parents: 3510
diff changeset
183
3604
3e89f0509967 prosody: Removed all references to componentmanager from Prosody, except the main componentmanager file.
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parents: 3589
diff changeset
184 hosts[module.host].send = function(stanza) -- FIXME do a generic fix
1780
668ce0a2050d MUC: Added a send() method to the component. Fixes issues with local mod_vcard.
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parents: 1767
diff changeset
185 if stanza.attr.type == "result" or stanza.attr.type == "error" then
5015
f19b38bfa015 mod_muc: Use module:send() instead of core_*_stanza()
Kim Alvefur <zash@zash.se>
parents: 4924
diff changeset
186 module:send(stanza);
1780
668ce0a2050d MUC: Added a send() method to the component. Fixes issues with local mod_vcard.
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187 else error("component.send only supports result and error stanzas at the moment"); end
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diff changeset
188 end
1738
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189
5016
56a0b13a3d42 mod_muc: Remove unused variable and pull hosts into a local
Kim Alvefur <zash@zash.se>
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diff changeset
190 hosts[module:get_host()].muc = { rooms = rooms };
1738
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191
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192 local saved = false;
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193 module.save = function()
5062
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194 saved = true;
1738
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195 return {rooms = rooms};
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196 end
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197 module.restore = function(data)
1748
f4c50c75af6f MUC: Fixed stanza routing for reloaded rooms.
Waqas Hussain <waqas20@gmail.com>
parents: 1747
diff changeset
198 for jid, oldroom in pairs(data.rooms or {}) do
5210
862a6fae05e7 MUC: Expose create_room(jid).
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diff changeset
199 local room = create_room(jid);
1747
28e5f6b535a8 MUC: Added support for reloading MUC library code.
Waqas Hussain <waqas20@gmail.com>
parents: 1741
diff changeset
200 room._jid_nick = oldroom._jid_nick;
28e5f6b535a8 MUC: Added support for reloading MUC library code.
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diff changeset
201 room._occupants = oldroom._occupants;
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diff changeset
202 room._data = oldroom._data;
28e5f6b535a8 MUC: Added support for reloading MUC library code.
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parents: 1741
diff changeset
203 room._affiliations = oldroom._affiliations;
28e5f6b535a8 MUC: Added support for reloading MUC library code.
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parents: 1741
diff changeset
204 end
5016
56a0b13a3d42 mod_muc: Remove unused variable and pull hosts into a local
Kim Alvefur <zash@zash.se>
parents: 5015
diff changeset
205 hosts[module:get_host()].muc = { rooms = rooms };
1738
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206 end
5062
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diff changeset
207
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diff changeset
208 function shutdown_room(room, stanza)
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diff changeset
209 for nick, occupant in pairs(room._occupants) do
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diff changeset
210 stanza.attr.from = nick;
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diff changeset
211 for jid in pairs(occupant.sessions) do
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diff changeset
212 stanza.attr.to = jid;
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diff changeset
213 room:_route_stanza(stanza);
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diff changeset
214 room._jid_nick[jid] = nil;
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215 end
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diff changeset
216 room._occupants[nick] = nil;
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217 end
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218 end
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diff changeset
219 function shutdown_component()
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diff changeset
220 if not saved then
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diff changeset
221 local stanza = st.presence({type = "unavailable"})
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diff changeset
222 :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"})
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diff changeset
223 :tag("item", { affiliation='none', role='none' }):up();
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diff changeset
224 for roomjid, room in pairs(rooms) do
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diff changeset
225 shutdown_room(room, stanza);
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226 end
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diff changeset
227 shutdown_room(host_room, stanza);
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diff changeset
228 end
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diff changeset
229 end
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diff changeset
230 module.unload = shutdown_component;
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diff changeset
231 module:hook_global("server-stopping", shutdown_component);