prosody
73a45ba6e3f1
plugins/muc/members_only.lib.lua

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plugins/muc/members_only.lib.lua @ 12729:73a45ba6e3f1

muc: Re-allow non-admins to configure persistence (thanks Meaz) Non-admins don't have a role on MUC services by default. Not even prosody:user. This meant they had no :create-persistent-room permission, even if muc_room_allow_persistent was true (the default). Now we only check the role permissions if persistent room creation is restricted, otherwise we skip any permission checks, just like previous versions.
author Matthew Wild <mwild1@gmail.com>
date Wed, 28 Sep 2022 17:47:00 +0100
parent 12029:631b2afa7bc1
child 12977:74b9e05af71e
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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 -- Copyright (C) 2014 Daurnimator
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5 --
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6 -- This project is MIT/X11 licensed. Please see the
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7 -- COPYING file in the source package for more information.
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8 --
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9
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10 local st = require "util.stanza";
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11
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12 local muc_util = module:require "muc/util";
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13 local valid_affiliations = muc_util.valid_affiliations;
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14
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15 local function get_members_only(room)
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16 return room._data.members_only;
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17 end
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18
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19 local function set_members_only(room, members_only)
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20 members_only = members_only and true or nil;
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21 if room._data.members_only == members_only then return false; end
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22 room._data.members_only = members_only;
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23 if members_only then
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24 --[[
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25 If as a result of a change in the room configuration the room type is
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26 changed to members-only but there are non-members in the room,
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27 the service MUST remove any non-members from the room and include a
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28 status code of 322 in the presence unavailable stanzas sent to those users
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29 as well as any remaining occupants.
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30 ]]
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31 local occupants_changed = {};
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32 for _, occupant in room:each_occupant() do
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33 local affiliation = room:get_affiliation(occupant.bare_jid);
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34 if valid_affiliations[affiliation or "none"] <= valid_affiliations.none then
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35 occupant.role = nil;
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36 room:save_occupant(occupant);
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37 occupants_changed[occupant] = true;
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38 end
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39 end
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40 local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"})
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41 :tag("status", {code="322"}):up();
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42 for occupant in pairs(occupants_changed) do
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43 room:publicise_occupant_status(occupant, x);
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44 module:fire_event("muc-occupant-left", {room = room; nick = occupant.nick; occupant = occupant;});
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45 end
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46 end
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47 return true;
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48 end
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49
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50 local function get_allow_member_invites(room)
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51 return room._data.allow_member_invites;
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52 end
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53
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54 -- Allows members to invite new members into a members-only room,
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55 -- effectively creating an invite-only room
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56 local function set_allow_member_invites(room, allow_member_invites)
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57 allow_member_invites = allow_member_invites and true or nil;
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58 if room._data.allow_member_invites == allow_member_invites then return false; end
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59 room._data.allow_member_invites = allow_member_invites;
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60 return true;
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61 end
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62
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63 module:hook("muc-disco#info", function(event)
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64 local members_only_room = not not get_members_only(event.room);
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65 local members_can_invite = not not get_allow_member_invites(event.room);
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66 event.reply:tag("feature", {var = members_only_room and "muc_membersonly" or "muc_open"}):up();
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67 table.insert(event.form, {
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68 name = "{http://prosody.im/protocol/muc}roomconfig_allowmemberinvites";
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69 label = "Allow members to invite new members";
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70 type = "boolean";
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71 value = members_can_invite;
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72 });
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73 table.insert(event.form, {
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74 name = "muc#roomconfig_allowinvites";
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75 label = "Allow users to invite other users";
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76 type = "boolean";
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77 value = not members_only_room or members_can_invite;
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78 });
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79 end);
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80
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81
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82 module:hook("muc-config-form", function(event)
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83 table.insert(event.form, {
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84 name = "muc#roomconfig_membersonly";
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85 type = "boolean";
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86 label = "Only allow members to join";
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87 desc = "Enable this to only allow access for room owners, admins and members";
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88 value = get_members_only(event.room);
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89 });
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90 table.insert(event.form, {
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91 name = "{http://prosody.im/protocol/muc}roomconfig_allowmemberinvites";
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92 type = "boolean";
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93 label = "Allow members to invite new members";
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94 value = get_allow_member_invites(event.room);
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95 });
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96 end, 90-3);
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97
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98 module:hook("muc-config-submitted/muc#roomconfig_membersonly", function(event)
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99 if set_members_only(event.room, event.value) then
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100 event.status_codes["104"] = true;
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101 end
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102 end);
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103
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104 module:hook("muc-config-submitted/{http://prosody.im/protocol/muc}roomconfig_allowmemberinvites", function(event)
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105 if set_allow_member_invites(event.room, event.value) then
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106 event.status_codes["104"] = true;
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107 end
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108 end);
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109
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110 -- No affiliation => role of "none"
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111 module:hook("muc-get-default-role", function(event)
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112 if not event.affiliation and get_members_only(event.room) then
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113 return false;
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114 end
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115 end, 2);
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116
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117 -- registration required for entering members-only room
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118 module:hook("muc-occupant-pre-join", function(event)
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119 local room = event.room;
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120 if get_members_only(room) then
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121 local stanza = event.stanza;
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122 local affiliation = room:get_affiliation(stanza.attr.from);
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123 if valid_affiliations[affiliation or "none"] <= valid_affiliations.none then
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2e36a54906e4 MUC: Indicate that the room is the origin of various errors where 'from' is an occupant JID
Kim Alvefur <zash@zash.se>
parents: 9716
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124 local reply = st.error_reply(stanza, "auth", "registration-required", nil, room.jid):up();
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125 event.origin.send(reply);
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126 return true;
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127 end
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128 end
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129 end, -5);
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130
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131 -- Invitation privileges in members-only rooms SHOULD be restricted to room admins;
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132 -- if a member without privileges to edit the member list attempts to invite another user
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133 -- the service SHOULD return a <forbidden/> error to the occupant
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134 module:hook("muc-pre-invite", function(event)
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135 local room = event.room;
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136 if get_members_only(room) then
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137 local stanza = event.stanza;
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parents: 8985
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138 local inviter_affiliation = room:get_affiliation(stanza.attr.from) or "none";
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139 local required_affiliation = room._data.allow_member_invites and "member" or "admin";
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parents: 8985
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140 if valid_affiliations[inviter_affiliation] < valid_affiliations[required_affiliation] then
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Kim Alvefur <zash@zash.se>
parents: 9716
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141 event.origin.send(st.error_reply(stanza, "auth", "forbidden", nil, room.jid));
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142 return true;
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143 end
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144 end
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145 end);
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146
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147 -- When an invite is sent; add an affiliation for the invitee
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148 module:hook("muc-invite", function(event)
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149 local room = event.room;
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150 if get_members_only(room) then
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151 local stanza = event.stanza;
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152 local invitee = stanza.attr.to;
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153 local affiliation = room:get_affiliation(invitee);
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Matthew Wild <mwild1@gmail.com>
parents: 8985
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154 local invited_unaffiliated = valid_affiliations[affiliation or "none"] <= valid_affiliations.none;
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parents: 8985
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155 if invited_unaffiliated then
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156 local from = stanza:get_child("x", "http://jabber.org/protocol/muc#user")
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157 :get_child("invite").attr.from;
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158 module:log("debug", "%s invited %s into members only room %s, granting membership",
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159 from, invitee, room.jid);
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160 -- This might fail; ignore for now
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Matthew Wild <mwild1@gmail.com>
parents: 7401
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161 room:set_affiliation(true, invitee, "member", "Invited by " .. from);
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Kim Alvefur <zash@zash.se>
parents: 7352
diff changeset
162 room:save();
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163 end
6221
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164 end
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165 end);
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166
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167 return {
f321536afeec plugins/muc/muc.lib: Move members_only into seperate file
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168 get = get_members_only;
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169 set = set_members_only;
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Matthew Wild <mwild1@gmail.com>
parents: 7401
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170 get_allow_member_invites = get_allow_member_invites;
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parents: 7401
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171 set_allow_member_invites = set_allow_member_invites;
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172 };