prosody-modules
999891a9ae5d
mod_mam_muc/mod_mam_muc.lua

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mod_mam_muc/mod_mam_muc.lua @ 1277:999891a9ae5d

mod_mam_muc: Remove archives when a room is destroyed
author Kim Alvefur <zash@zash.se>
date Sat, 18 Jan 2014 21:07:12 +0100
parent 1276:01dfaf2f2782
child 1278:40f077b18dfe
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 -- XEP-0313: Message Archive Management for Prosody
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2 -- Copyright (C) 2011-2013 Kim Alvefur
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3 --
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4 -- This file is MIT/X11 licensed.
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5
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6 local xmlns_mam = "urn:xmpp:mam:tmp";
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7 local xmlns_delay = "urn:xmpp:delay";
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8 local xmlns_forward = "urn:xmpp:forward:0";
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9 local muc_form_config_option = "muc#roomconfig_enablelogging"
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10
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11 local st = require "util.stanza";
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12 local rsm = module:require "mod_mam/rsm";
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13 local jid_bare = require "util.jid".bare;
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14 local jid_split = require "util.jid".split;
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15
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16 local getmetatable = getmetatable;
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17 local function is_stanza(x)
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18 return getmetatable(x) == st.stanza_mt;
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19 end
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20
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21 local tostring = tostring;
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22 local time_now = os.time;
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23 local m_min = math.min;
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24 local timestamp, timestamp_parse = require "util.datetime".datetime, require "util.datetime".parse;
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25 local default_max_items, max_max_items = 20, module:get_option_number("max_archive_query_results", 50);
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26
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27 local log_all_rooms = module:get_option_boolean("muc_log_all_rooms", false);
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28 local log_by_default = module:get_option_boolean("muc_log_by_default", true);
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29 local advertise_archive = module:get_option_boolean("muc_log_advertise", true);
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30
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31 local archive = module:open_store("archive2", "archive");
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32 local rooms = hosts[module.host].modules.muc.rooms;
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33
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34 if not log_all_rooms then
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35 module:hook("muc-config-form", function(event)
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36 local room, form = event.room, event.form;
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37 local logging_enabled = room._data.logging;
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38 if logging_enabled == nil then
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39 logging_enabled = log_by_default;
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40 end
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41 table.insert(form,
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42 {
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43 name = muc_form_config_option,
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44 type = "boolean",
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45 label = "Enable Logging?",
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46 value = logging_enabled,
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47 }
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48 );
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49 end);
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50
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51 module:hook("muc-config-submitted", function(event)
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52 local room, fields, changed = event.room, event.fields, event.changed;
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53 local new = fields[muc_form_config_option];
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54 if new ~= room._data.logging then
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55 room._data.logging = new;
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56 if type(changed) == "table" then
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57 changed[muc_form_config_option] = true;
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58 else
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59 event.changed = true;
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60 end
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61 end
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62 end);
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63 end
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64
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65
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66 -- Handle archive queries
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67 module:hook("iq-get/bare/"..xmlns_mam..":query", function(event)
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68 local origin, stanza = event.origin, event.stanza;
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69 local room = stanza.attr.to;
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70 local room_node = jid_split(room);
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71 local query = stanza.tags[1];
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72
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73 local room_obj = rooms[room];
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74 if not room_obj then
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75 return origin.send(st.error_reply(stanza, "cancel", "item-not-found"))
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76 end
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77 local from = jid_bare(stanza.attr.from);
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78
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79 -- Banned or not a member of a members-only room?
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80 if room_obj._affiliations[from] == "outcast"
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81 or room_obj._data.members_only and not room_obj._affiliations[from] then
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82 return origin.send(st.error_reply(stanza, "auth", "forbidden"))
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83 end
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84
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85 local qid = query.attr.queryid;
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86
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87 -- Search query parameters
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88 local qstart = query:get_child_text("start");
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89 local qend = query:get_child_text("end");
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90 module:log("debug", "Archive query, id %s from %s until %s)",
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91 tostring(qid), qstart or "the dawn of time", qend or "now");
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92
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93 if qstart or qend then -- Validate timestamps
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94 local vstart, vend = (qstart and timestamp_parse(qstart)), (qend and timestamp_parse(qend))
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95 if (qstart and not vstart) or (qend and not vend) then
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96 origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid timestamp"))
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97 return true
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98 end
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99 qstart, qend = vstart, vend;
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100 end
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101
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102 -- RSM stuff
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103 local qset = rsm.get(query);
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104 local qmax = m_min(qset and qset.max or default_max_items, max_max_items);
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105 local reverse = qset and qset.before or false;
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106
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107 local before, after = qset and qset.before, qset and qset.after;
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108 if type(before) ~= "string" then before = nil; end
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109
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110 -- Load all the data!
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111 local data, err = archive:find(room_node, {
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112 start = qstart; ["end"] = qend; -- Time range
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113 limit = qmax;
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114 before = before; after = after;
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115 reverse = reverse;
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116 total = true;
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117 });
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118
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119 if not data then
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120 return origin.send(st.error_reply(stanza, "cancel", "internal-server-error"));
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121 end
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122 local count = err;
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123
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124 -- Wrap it in stuff and deliver
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125 local first, last;
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126 for id, item, when in data do
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127 local fwd_st = st.message{ to = origin.full_jid }
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128 :tag("result", { xmlns = xmlns_mam, queryid = qid, id = id })
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129 :tag("forwarded", { xmlns = xmlns_forward })
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130 :tag("delay", { xmlns = xmlns_delay, stamp = timestamp(when) }):up();
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131
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132 if not is_stanza(item) then
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133 item = st.deserialize(item);
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134 end
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135 item.attr.xmlns = "jabber:client";
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136 fwd_st:add_child(item);
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137
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138 if not first then first = id; end
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139 last = id;
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140
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141 origin.send(fwd_st);
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142 end
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143 -- That's all folks!
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144 module:log("debug", "Archive query %s completed", tostring(qid));
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145
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146 if reverse then first, last = last, first; end
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147 return origin.send(st.reply(stanza)
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148 :query(xmlns_mam):add_child(rsm.generate {
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149 first = first, last = last, count = count }));
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150 end);
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151
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152 -- Handle messages
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153 local function message_handler(event)
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154 local stanza = event.stanza;
820
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155 local orig_type = stanza.attr.type or "normal";
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156 local orig_to = stanza.attr.to;
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157 local orig_from = stanza.attr.from;
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158
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159 -- Only store groupchat messages
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160 if not (orig_type == "groupchat" and (stanza:get_child("body") or stanza:get_child("subject"))) then
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161 return;
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162 -- Chat states and other non-content messages, what TODO?
820
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163 end
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164
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165 local room = jid_split(orig_to);
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166 local room_obj = rooms[orig_to]
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167 if not room_obj then return end -- No such room
820
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168
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169 if not ( log_all_rooms == true -- Logging forced on all rooms
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170 or (room_obj._data.logging == nil and log_by_default == true)
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171 or room_obj._data.logging ) then return end -- Don't log
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172
820
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173 local nick = room_obj._jid_nick[orig_from];
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174 if not nick then return end -- Message from someone not in the room?
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175
820
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176 stanza.attr.from = nick;
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177 -- And stash it
1142
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178 local ok, id = archive:append(room, time_now(), "", stanza);
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179 stanza.attr.from = orig_from;
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180 if ok and advertise_archive then
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181 stanza:tag("archived", { xmlns = xmlns_mam, by = jid_bare(orig_to), id = id }):up();
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182 end
820
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183 end
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184
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185 module:hook("message/bare", message_handler, 2);
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186
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187 module:hook("muc-room-destroyed", function(event)
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188 archive:delete(jid_split(event.room.jid));
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189 end);
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190
1141
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191 -- TODO should we perhaps log presence as well?
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192 -- And role/affiliation changes?
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193
820
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194 module:add_feature(xmlns_mam);