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0.2->0.3
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1 | |
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2 | |
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3 | local register_component = require "core.componentmanager".register_component; |
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4 | local deregister_component = require "core.componentmanager".deregister_component; |
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5 | local jid_split = require "util.jid".split; |
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6 | local jid_bare = require "util.jid".bare; |
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7 | local st = require "util.stanza"; |
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8 | local log = require "util.logger".init("mod_muc"); |
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9 | local multitable_new = require "util.multitable".new; |
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10 | |
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11 | if module:get_host_type() ~= "component" then |
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12 | error("MUC should be loaded as a component, please see http://prosody.im/doc/components", 0); |
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13 | end |
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14 | |
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15 | local muc_domain = module:get_host(); |
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16 | |
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17 | local muc_name = "MUCMUCMUC!!!"; |
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18 | |
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19 | -- room_name -> room |
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20 | -- occupant_room_nick -> data |
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21 | -- affiliation = ... |
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22 | -- role |
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23 | -- jid = occupant's real jid |
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24 | local rooms = multitable_new(); |
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25 | |
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26 | local jid_nick = multitable_new(); -- real jid -> room's jid -> room nick |
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27 | |
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28 | -- room_name -> info |
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29 | -- name - the room's friendly name |
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30 | -- subject - the room's subject |
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31 | -- non-anonymous = true|nil |
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32 | -- persistent = true|nil |
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33 | local rooms_info = multitable_new(); |
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34 | |
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35 | local persist_list = datamanager.load(nil, muc_domain, 'room_list') or {}; |
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36 | for room in pairs(persist_list) do |
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37 | rooms_info:set(room, datamanager.store(room, muc_domain, 'rooms') or nil); |
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38 | end |
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39 | |
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40 | local component; |
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41 | |
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42 | function getUsingPath(stanza, path, getText) |
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43 | local tag = stanza; |
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44 | for _, name in ipairs(path) do |
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45 | if type(tag) ~= 'table' then return; end |
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46 | tag = tag:child_with_name(name); |
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47 | end |
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48 | if tag and getText then tag = table.concat(tag); end |
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49 | return tag; |
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50 | end |
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51 | function getTag(stanza, path) return getUsingPath(stanza, path); end |
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52 | function getText(stanza, path) return getUsingPath(stanza, path, true); end |
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53 | |
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54 | function get_disco_info(stanza) |
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55 | return st.iq({type='result', id=stanza.attr.id, from=muc_domain, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info") |
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56 | :tag("identity", {category='conference', type='text', name=muc_name}):up() |
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57 | :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply |
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58 | end |
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59 | function get_disco_items(stanza) |
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60 | local reply = st.iq({type='result', id=stanza.attr.id, from=muc_domain, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items"); |
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61 | for room in pairs(rooms_info:get()) do |
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62 | reply:tag("item", {jid=room, name=rooms_info:get(room, "name")}):up(); |
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63 | end |
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64 | return reply; -- TODO cache disco reply |
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65 | end |
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66 | function get_room_disco_info(stanza) |
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67 | return st.iq({type='result', id=stanza.attr.id, from=stanza.attr.to, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info") |
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68 | :tag("identity", {category='conference', type='text', name=rooms_info:get(stanza.attr.to, "name")}):up() |
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69 | :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply |
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70 | end |
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71 | function get_room_disco_items(stanza) |
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72 | return st.iq({type='result', id=stanza.attr.id, from=stanza.attr.to, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items"); |
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73 | end -- TODO allow non-private rooms |
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74 | |
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75 | function save_room(room) |
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76 | local persistent = rooms_info:get(room, 'persistent'); |
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77 | if persistent then |
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78 | datamanager.store(room, muc_domain, 'rooms', rooms_info:get(room)); |
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79 | end |
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80 | if persistent ~= persist_list[room] then |
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81 | if not persistent then |
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82 | datamanager.store(room, muc_domain, 'rooms', nil); |
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83 | end |
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84 | persist_list[room] = persistent; |
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85 | datamanager.store(nil, muc_domain, 'room_list', persist_list); |
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86 | end |
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87 | end |
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88 | |
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89 | function set_subject(current_nick, room, subject) |
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90 | -- TODO check nick's authority |
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91 | if subject == "" then subject = nil; end |
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92 | rooms_info:set(room, 'subject', subject); |
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93 | save_room(); |
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94 | broadcast_message(current_nick, room, subject or "", nil); |
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95 | return true; |
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96 | end |
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97 | |
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98 | function broadcast_presence(type, from, room, code, newnick) |
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99 | local data = rooms:get(room, from); |
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100 | local stanza = st.presence({type=type, from=from}) |
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101 | :tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) |
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102 | :tag("item", {affiliation=data.affiliation, role=data.role, nick = newnick}):up(); |
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103 | if code then |
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104 | stanza:tag("status", {code=code}):up(); |
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105 | end |
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106 | local me; |
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107 | local r = rooms:get(room); |
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108 | if r then |
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109 | for occupant, o_data in pairs(r) do |
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110 | if occupant ~= from then |
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111 | stanza.attr.to = o_data.jid; |
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112 | core_route_stanza(component, stanza); |
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113 | else |
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114 | me = o_data.jid; |
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115 | end |
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116 | end |
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117 | end |
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118 | if me then |
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119 | stanza:tag("status", {code='110'}); |
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120 | stanza.attr.to = me; |
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121 | core_route_stanza(component, stanza); |
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122 | end |
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123 | end |
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124 | function broadcast_message(from, room, subject, body) |
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125 | local stanza = st.message({type='groupchat', from=from}); |
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126 | if subject then stanza:tag('subject'):text(subject):up(); end |
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127 | if body then stanza:tag('body'):text(body):up(); end |
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128 | local r = rooms:get(room); |
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129 | if r then |
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130 | for occupant, o_data in pairs(r) do |
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131 | stanza.attr.to = o_data.jid; |
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132 | core_route_stanza(component, stanza); |
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133 | end |
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134 | end |
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135 | end |
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136 | |
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137 | function handle_to_occupant(origin, stanza) -- PM, vCards, etc |
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138 | local from, to = stanza.attr.from, stanza.attr.to; |
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139 | local room = jid_bare(to); |
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140 | local current_nick = jid_nick:get(from, room); |
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141 | local type = stanza.attr.type; |
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142 | if stanza.name == "presence" then |
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143 | if type == "error" then -- error, kick em out! |
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144 | local data = rooms:get(room, to); |
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145 | data.role = 'none'; |
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146 | broadcast_presence('unavailable', to, room); -- TODO also add <status>This participant is kicked from the room because he sent an error presence: badformed error stanza</status> |
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147 | rooms:remove(room, to); |
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148 | jid_nick:remove(from, room); |
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149 | elseif type == "unavailable" then -- unavailable |
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150 | if current_nick == to then |
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151 | local data = rooms:get(room, to); |
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152 | data.role = 'none'; |
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153 | broadcast_presence('unavailable', to, room); |
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154 | rooms:remove(room, to); |
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155 | jid_nick:remove(from, room); |
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156 | end -- TODO else do nothing? |
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157 | elseif not type then -- available |
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158 | if current_nick then |
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159 | if current_nick == to then -- simple presence |
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160 | -- TODO broadcast |
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161 | else -- change nick |
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162 | if rooms:get(room, to) then |
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163 | origin.send(st.error_reply(stanza, "cancel", "conflict")); |
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164 | else |
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165 | local data = rooms:get(room, current_nick); |
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166 | local to_nick = select(3, jid_split(to)); |
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167 | if to_nick then |
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168 | broadcast_presence('unavailable', current_nick, room, '303', to_nick); |
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169 | rooms:remove(room, current_nick); |
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170 | rooms:set(room, to, data); |
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171 | jid_nick:set(from, room, to); |
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172 | broadcast_presence(nil, to, room, nil); |
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173 | else |
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174 | --TODO: malformed-jid |
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175 | end |
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176 | end |
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177 | end |
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178 | else -- enter room |
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179 | if rooms:get(room, to) then |
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180 | origin.send(st.error_reply(stanza, "cancel", "conflict")); |
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181 | else |
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182 | local data; |
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183 | if not rooms:get(room) and not rooms_info:get(room) then -- new room |
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184 | data = {affiliation='owner', role='moderator', jid=from}; |
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185 | end |
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186 | if not data then -- new occupant |
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187 | data = {affiliation='none', role='participant', jid=from}; |
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188 | end |
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189 | rooms:set(room, to, data); |
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190 | jid_nick:set(from, room, to); |
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191 | local r = rooms:get(room); |
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192 | if r then |
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193 | for occupant, o_data in pairs(r) do |
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194 | if occupant ~= from then |
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195 | local pres = st.presence({to=from, from=occupant}) |
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196 | :tag("x", {xmlns='http://jabber.org/protocol/muc#user'}) |
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197 | :tag("item", {affiliation=o_data.affiliation, role=o_data.role}):up(); |
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198 | core_route_stanza(component, pres); |
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199 | end |
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200 | end |
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201 | end |
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202 | broadcast_presence(nil, to, room); |
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203 | -- TODO send discussion history |
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204 | if rooms_info:get(room, 'subject') then |
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205 | core_route_stanza(component, st.message({type='groupchat', from=room, to=from}):tag("subject"):text(rooms_info:get(room, 'subject'))); |
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206 | end |
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207 | end |
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208 | end |
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209 | elseif type ~= 'result' then -- bad type |
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210 | origin.send(st.error_reply(stanza, "modify", "bad-request")); -- FIXME correct error? |
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211 | end |
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212 | elseif stanza.name == "message" and type == "groupchat" then |
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213 | -- groupchat messages not allowed in PM |
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214 | origin.send(st.error_reply(stanza, "modify", "bad-request")); |
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215 | else |
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216 | origin.send(st.error_reply(stanza, "cancel", "not-implemented", "Private stanzas not implemented")); -- TODO route private stanza |
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217 | end |
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218 | end |
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219 | |
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220 | function handle_to_room(origin, stanza) -- presence changes and groupchat messages, along with disco/etc |
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221 | local type = stanza.attr.type; |
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222 | if stanza.name == "iq" and type == "get" then -- disco requests |
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223 | local xmlns = stanza.tags[1].attr.xmlns; |
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224 | if xmlns == "http://jabber.org/protocol/disco#info" then |
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225 | origin.send(get_room_disco_info(stanza)); |
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226 | elseif xmlns == "http://jabber.org/protocol/disco#items" then |
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227 | origin.send(get_room_disco_items(stanza)); |
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228 | else |
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229 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
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230 | end |
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231 | elseif stanza.name == "message" and type == "groupchat" then |
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232 | local from, to = stanza.attr.from, stanza.attr.to; |
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233 | local room = jid_bare(to); |
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234 | local current_nick = jid_nick:get(from, room); |
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235 | if not current_nick then -- not in room |
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236 | origin.send(st.error_reply(stanza, "cancel", "not-acceptable")); |
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237 | else |
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238 | local subject = getText(stanza, {"subject"}); |
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239 | if subject then |
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240 | set_subject(current_nick, room, subject); |
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241 | else |
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242 | broadcast_message(current_nick, room, nil, getText(stanza, {"body"})); |
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243 | -- TODO add to discussion history |
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244 | end |
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245 | end |
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246 | else |
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247 | if type == "error" or type == "result" then return; end |
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248 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); |
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249 | end |
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250 | end |
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251 | |
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252 | function handle_to_domain(origin, stanza) |
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253 | local type = stanza.attr.type; |
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254 | if type == "error" or type == "result" then return; end |
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255 | if stanza.name == "iq" and type == "get" then |
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256 | local xmlns = stanza.tags[1].attr.xmlns; |
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257 | if xmlns == "http://jabber.org/protocol/disco#info" then |
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258 | origin.send(get_disco_info(stanza)); |
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259 | elseif xmlns == "http://jabber.org/protocol/disco#items" then |
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260 | origin.send(get_disco_items(stanza)); |
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261 | else |
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262 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- TODO disco/etc |
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263 | end |
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264 | else |
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265 | 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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266 | end |
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267 | end |
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268 | |
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269 | function handle_stanza(origin, stanza) |
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270 | local to_node, to_host, to_resource = jid_split(stanza.attr.to); |
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271 | if stanza.name == "presence" and stanza.attr.type ~= nil and stanza.attr.type ~= "unavailable" then |
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272 | if type == "error" or type == "result" then return; end |
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273 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- FIXME what's appropriate? |
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274 | elseif to_resource and not to_node then |
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275 | if type == "error" or type == "result" then return; end |
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276 | origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- host/resource |
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277 | elseif to_resource then |
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278 | handle_to_occupant(origin, stanza); |
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279 | elseif to_node then |
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280 | handle_to_room(origin, stanza) |
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281 | else -- to the main muc domain |
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282 | if type == "error" or type == "result" then return; end |
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283 | handle_to_domain(origin, stanza); |
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284 | end |
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285 | end |
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286 | |
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287 | module.load_component = function() |
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288 | return handle_stanza; -- Return the function that we want to handle incoming stanzas |
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289 | end |
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290 | |
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291 | module.unload = function() |
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292 | deregister_component(muc_domain); |
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293 | end |
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294 | module.save = function() |
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295 | return {rooms = rooms.data; jid_nick = jid_nick.data; rooms_info = rooms_info.data; persist_list = persist_list}; |
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296 | end |
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297 | module.restore = function(data) |
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298 | rooms.data, jid_nick.data, rooms_info.data, persist_list = |
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299 | data.rooms or {}, data.jid_nick or {}, data.rooms_info or {}, data.persist_list or {}; |
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300 | end |