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plugins/muc/mod_muc.lua

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plugins/muc/mod_muc.lua @ 6741:bea3862b6bde

MUC: Remove half of monkeypatch that was supposed to make admins always be room owners, fixes #458
author Kim Alvefur <zash@zash.se>
date Tue, 16 Jun 2015 15:13:47 +0200
parent 5997:2d652afa57e4
child 6742:6efeb801d62f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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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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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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33
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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 _get_affiliation = muc_new_room.room_mt.get_affiliation;
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48 function muclib.room_mt:get_affiliation(jid)
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49 if is_admin(jid) then return "owner"; end
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50 return _get_affiliation(self, jid);
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51 end
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52
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53 local function room_route_stanza(room, stanza) module:send(stanza); end
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54 local function room_save(room, forced)
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55 local node = jid_split(room.jid);
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56 persistent_rooms[room.jid] = room._data.persistent;
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57 if room._data.persistent then
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58 local history = room._data.history;
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59 room._data.history = nil;
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60 local data = {
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61 jid = room.jid;
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62 _data = room._data;
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63 _affiliations = room._affiliations;
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64 };
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65 room_configs:set(node, data);
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66 room._data.history = history;
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67 elseif forced then
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68 room_configs:set(node, nil);
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69 if not next(room._occupants) then -- Room empty
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70 rooms[room.jid] = nil;
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71 end
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72 end
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73 if forced then persistent_rooms_storage:set(nil, persistent_rooms); end
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74 end
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75
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76 function create_room(jid)
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77 local room = muc_new_room(jid);
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78 room.route_stanza = room_route_stanza;
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79 room.save = room_save;
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80 rooms[jid] = room;
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81 module:fire_event("muc-room-created", { room = room });
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82 return room;
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83 end
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84
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85 local persistent_errors = false;
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86 for jid in pairs(persistent_rooms) do
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87 local node = jid_split(jid);
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88 local data = room_configs:get(node);
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89 if data then
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90 local room = create_room(jid);
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91 room._data = data._data;
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92 room._affiliations = data._affiliations;
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93 else -- missing room data
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94 persistent_rooms[jid] = nil;
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95 module:log("error", "Missing data for room '%s', removing from persistent room list", jid);
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96 persistent_errors = true;
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97 end
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98 end
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99 if persistent_errors then persistent_rooms_storage:set(nil, persistent_rooms); end
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100
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101 local host_room = muc_new_room(muc_host);
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102 host_room.route_stanza = room_route_stanza;
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103 host_room.save = room_save;
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104
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105 local function get_disco_info(stanza)
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106 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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107 :tag("identity", {category='conference', type='text', name=muc_name}):up()
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108 :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply
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109 end
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110 local function get_disco_items(stanza)
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111 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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112 for jid, room in pairs(rooms) do
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113 if not room:is_hidden() then
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114 reply:tag("item", {jid=jid, name=room:get_name()}):up();
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115 end
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116 end
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117 return reply; -- TODO cache disco reply
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118 end
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119
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120 local function handle_to_domain(event)
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121 local origin, stanza = event.origin, event.stanza;
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122 local type = stanza.attr.type;
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123 if type == "error" or type == "result" then return; end
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124 if stanza.name == "iq" and type == "get" then
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125 local xmlns = stanza.tags[1].attr.xmlns;
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126 local node = stanza.tags[1].attr.node;
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127 if xmlns == "http://jabber.org/protocol/disco#info" and not node then
1738
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128 origin.send(get_disco_info(stanza));
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129 elseif xmlns == "http://jabber.org/protocol/disco#items" and not node then
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130 origin.send(get_disco_items(stanza));
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131 elseif xmlns == "http://jabber.org/protocol/muc#unique" then
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132 origin.send(st.reply(stanza):tag("unique", {xmlns = xmlns}):text(uuid_gen())); -- FIXME Random UUIDs can theoretically have collisions
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133 else
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134 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- TODO disco/etc
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135 end
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136 else
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137 host_room:handle_stanza(origin, stanza);
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138 --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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139 end
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140 return true;
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141 end
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142
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143 function stanza_handler(event)
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144 local origin, stanza = event.origin, event.stanza;
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145 local bare = jid_bare(stanza.attr.to);
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146 local room = rooms[bare];
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147 if not room then
5058
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148 if stanza.name ~= "presence" then
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diff changeset
149 origin.send(st.error_reply(stanza, "cancel", "item-not-found"));
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150 return true;
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151 end
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152 if not(restrict_room_creation) or
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diff changeset
153 is_admin(stanza.attr.from) or
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154 (restrict_room_creation == "local" and select(2, jid_split(stanza.attr.from)) == module.host:gsub("^[^%.]+%.", "")) then
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155 room = create_room(bare);
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156 end
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157 end
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158 if room then
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159 room:handle_stanza(origin, stanza);
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160 if not next(room._occupants) and not persistent_rooms[room.jid] then -- empty, non-persistent room
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diff changeset
161 module:fire_event("muc-room-destroyed", { room = room });
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162 rooms[bare] = nil; -- discard room
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163 end
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164 else
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diff changeset
165 origin.send(st.error_reply(stanza, "cancel", "not-allowed"));
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166 end
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diff changeset
167 return true;
3560
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168 end
3675
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169 module:hook("iq/bare", stanza_handler, -1);
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diff changeset
170 module:hook("message/bare", stanza_handler, -1);
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diff changeset
171 module:hook("presence/bare", stanza_handler, -1);
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diff changeset
172 module:hook("iq/full", stanza_handler, -1);
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diff changeset
173 module:hook("message/full", stanza_handler, -1);
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diff changeset
174 module:hook("presence/full", stanza_handler, -1);
4370
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diff changeset
175 module:hook("iq/host", handle_to_domain, -1);
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diff changeset
176 module:hook("message/host", handle_to_domain, -1);
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diff changeset
177 module:hook("presence/host", handle_to_domain, -1);
3560
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178
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parents: 3589
diff changeset
179 hosts[module.host].send = function(stanza) -- FIXME do a generic fix
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diff changeset
180 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
181 module:send(stanza);
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182 else error("component.send only supports result and error stanzas at the moment"); end
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diff changeset
183 end
1738
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184
5016
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diff changeset
185 hosts[module:get_host()].muc = { rooms = rooms };
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186
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187 local saved = false;
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188 module.save = function()
5062
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189 saved = true;
1738
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190 return {rooms = rooms};
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191 end
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192 module.restore = function(data)
1748
f4c50c75af6f MUC: Fixed stanza routing for reloaded rooms.
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diff changeset
193 for jid, oldroom in pairs(data.rooms or {}) do
5210
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diff changeset
194 local room = create_room(jid);
1747
28e5f6b535a8 MUC: Added support for reloading MUC library code.
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diff changeset
195 room._jid_nick = oldroom._jid_nick;
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diff changeset
196 room._occupants = oldroom._occupants;
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diff changeset
197 room._data = oldroom._data;
28e5f6b535a8 MUC: Added support for reloading MUC library code.
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diff changeset
198 room._affiliations = oldroom._affiliations;
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diff changeset
199 end
5016
56a0b13a3d42 mod_muc: Remove unused variable and pull hosts into a local
Kim Alvefur <zash@zash.se>
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diff changeset
200 hosts[module:get_host()].muc = { rooms = rooms };
1738
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201 end
5062
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diff changeset
202
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diff changeset
203 function shutdown_room(room, stanza)
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diff changeset
204 for nick, occupant in pairs(room._occupants) do
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diff changeset
205 stanza.attr.from = nick;
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diff changeset
206 for jid in pairs(occupant.sessions) do
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diff changeset
207 stanza.attr.to = jid;
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208 room:_route_stanza(stanza);
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diff changeset
209 room._jid_nick[jid] = nil;
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210 end
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diff changeset
211 room._occupants[nick] = nil;
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212 end
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213 end
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diff changeset
214 function shutdown_component()
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diff changeset
215 if not saved then
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diff changeset
216 local stanza = st.presence({type = "unavailable"})
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diff changeset
217 :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"})
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diff changeset
218 :tag("item", { affiliation='none', role='none' }):up();
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diff changeset
219 for roomjid, room in pairs(rooms) do
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diff changeset
220 shutdown_room(room, stanza);
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221 end
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diff changeset
222 shutdown_room(host_room, stanza);
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diff changeset
223 end
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diff changeset
224 end
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diff changeset
225 module.unload = shutdown_component;
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diff changeset
226 module:hook_global("server-stopping", shutdown_component);