prosody
c434bff22b14
plugins/muc/register.lib.lua

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plugins/muc/register.lib.lua @ 10303:c434bff22b14

mod_csi_simple: Always remove session filters when disabling CSI Only guard the actual pausing of outgoing data on the method existing. This prevents the filters from lingering in case something happened to the connection. Removing already removed filters should be a safe noop.
author Kim Alvefur <zash@zash.se>
date Sat, 05 Oct 2019 16:55:58 +0200
parent 10225:9bdd9b6bf362
child 10342:dab2a7a82170
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 local jid_bare = require "util.jid".bare;
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2 local jid_resource = require "util.jid".resource;
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3 local resourceprep = require "util.encodings".stringprep.resourceprep;
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4 local st = require "util.stanza";
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5 local dataforms = require "util.dataforms";
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6
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7 local allow_unaffiliated = module:get_option_boolean("allow_unaffiliated_register", false);
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8
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9 local enforce_nick = module:get_option_boolean("enforce_registered_nickname", false);
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10
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11 -- reserved_nicks[nick] = jid
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12 local function get_reserved_nicks(room)
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13 if room._reserved_nicks then
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14 return room._reserved_nicks;
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15 end
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16 module:log("debug", "Refreshing reserved nicks...");
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17 local reserved_nicks = {};
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18 for jid, _, data in room:each_affiliation() do
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19 local nick = data and data.reserved_nickname;
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20 module:log("debug", "Refreshed for %s: %s", jid, nick);
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21 if nick then
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22 reserved_nicks[nick] = jid;
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23 end
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24 end
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25 room._reserved_nicks = reserved_nicks;
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26 return reserved_nicks;
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27 end
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28
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29 -- Returns the registered nick, if any, for a JID
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30 -- Note: this is just the *nick* part, i.e. the resource of the in-room JID
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31 local function get_registered_nick(room, jid)
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32 local registered_data = room._affiliation_data[jid];
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33 if not registered_data then
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34 return;
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35 end
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36 return registered_data.reserved_nickname;
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37 end
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38
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39 -- Returns the JID, if any, that registered a nick (not in-room JID)
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40 local function get_registered_jid(room, nick)
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41 local reserved_nicks = get_reserved_nicks(room);
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42 return reserved_nicks[nick];
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43 end
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44
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45 module:hook("muc-set-affiliation", function (event)
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46 -- Clear reserved nick cache
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47 event.room._reserved_nicks = nil;
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48 end);
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49
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50 module:add_feature("jabber:iq:register");
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51
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52 module:hook("muc-disco#info", function (event)
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53 event.reply:tag("feature", { var = "jabber:iq:register" }):up();
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54 end);
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55
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56 local registration_form = dataforms.new {
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57 { name = "FORM_TYPE", type = "hidden", value = "http://jabber.org/protocol/muc#register" },
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58 { name = "muc#register_roomnick", type = "text-single", label = "Nickname"},
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59 };
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60
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61 local function enforce_nick_policy(event)
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62 local origin, stanza = event.origin, event.stanza;
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63 local room = assert(event.room); -- FIXME
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64 if not room then return; end
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65
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66 -- Check if the chosen nickname is reserved
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67 local requested_nick = jid_resource(stanza.attr.to);
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68 local reserved_by = get_registered_jid(room, requested_nick);
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69 if reserved_by and reserved_by ~= jid_bare(stanza.attr.from) then
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70 module:log("debug", "%s attempted to use nick %s reserved by %s", stanza.attr.from, requested_nick, reserved_by);
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71 local reply = st.error_reply(stanza, "cancel", "conflict"):up();
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72 origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"}));
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73 return true;
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74 end
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75
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76 -- Check if the occupant has a reservation they must use
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77 if enforce_nick then
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78 local nick = get_registered_nick(room, jid_bare(stanza.attr.from));
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79 if nick then
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80 if event.occupant then
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81 event.occupant.nick = jid_bare(event.occupant.nick) .. "/" .. nick;
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82 elseif event.dest_occupant.nick ~= jid_bare(event.dest_occupant.nick) .. "/" .. nick then
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83 module:log("debug", "Attempt by %s to join as %s, but their reserved nick is %s", stanza.attr.from, requested_nick, nick);
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84 local reply = st.error_reply(stanza, "cancel", "not-acceptable"):up();
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85 origin.send(reply:tag("x", {xmlns = "http://jabber.org/protocol/muc"}));
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86 return true;
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87 end
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88 end
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89 end
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90 end
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91
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92 module:hook("muc-occupant-pre-join", enforce_nick_policy);
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93 module:hook("muc-occupant-pre-change", enforce_nick_policy);
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94
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95 -- Discovering Reserved Room Nickname
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96 -- http://xmpp.org/extensions/xep-0045.html#reservednick
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97 module:hook("muc-disco#info/x-roomuser-item", function (event)
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98 local nick = get_registered_nick(event.room, jid_bare(event.stanza.attr.from));
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99 if nick then
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100 event.reply:tag("identity", { category = "conference", type = "text", name = nick })
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101 end
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102 end);
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103
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104 local function handle_register_iq(room, origin, stanza)
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105 local user_jid = jid_bare(stanza.attr.from)
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106 local affiliation = room:get_affiliation(user_jid);
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107 if affiliation == "outcast" then
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108 origin.send(st.error_reply(stanza, "auth", "forbidden"));
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109 return true;
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110 elseif not (affiliation or allow_unaffiliated) then
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111 origin.send(st.error_reply(stanza, "auth", "registration-required"));
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112 return true;
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113 end
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114 local reply = st.reply(stanza);
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115 local registered_nick = get_registered_nick(room, user_jid);
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116 if stanza.attr.type == "get" then
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117 reply:query("jabber:iq:register");
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
118 if registered_nick then
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
119 reply:tag("registered"):up();
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
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parents:
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120 reply:tag("username"):text(registered_nick);
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
121 origin.send(reply);
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
122 return true;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
123 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
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124 reply:add_child(registration_form:form());
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
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parents:
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125 else -- type == set -- handle registration form
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parents:
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126 local query = stanza.tags[1];
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parents:
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127 if query:get_child("remove") then
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parents:
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128 -- Remove "member" affiliation, but preserve if any other
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parents:
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129 local new_affiliation = affiliation ~= "member" and affiliation;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
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parents:
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130 local ok, err_type, err_condition = room:set_affiliation(true, user_jid, new_affiliation, nil, false);
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
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parents:
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131 if not ok then
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
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parents:
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132 origin.send(st.error_reply(stanza, err_type, err_condition));
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
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parents:
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133 return true;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
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parents:
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134 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
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parents:
diff changeset
135 origin.send(reply);
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parents:
diff changeset
136 return true;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
137 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
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138 local form_tag = query:get_child("x", "jabber:x:data");
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
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139 local reg_data = form_tag and registration_form:data(form_tag);
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Matthew Wild <mwild1@gmail.com>
parents:
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140 if not reg_data then
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
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parents:
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141 origin.send(st.error_reply(stanza, "modify", "bad-request", "Error in form"));
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parents:
diff changeset
142 return true;
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
143 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
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144 -- Is the nickname valid?
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
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parents:
diff changeset
145 local desired_nick = resourceprep(reg_data["muc#register_roomnick"]);
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
146 if not desired_nick then
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
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parents:
diff changeset
147 origin.send(st.error_reply(stanza, "modify", "bad-request", "Invalid Nickname"));
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
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parents:
diff changeset
148 return true;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
149 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
150 -- Is the nickname currently in use by another user?
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
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parents:
diff changeset
151 local current_occupant = room:get_occupant_by_nick(room.jid.."/"..desired_nick);
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parents:
diff changeset
152 if current_occupant and current_occupant.bare_jid ~= user_jid then
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
153 origin.send(st.error_reply(stanza, "cancel", "conflict"));
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
154 return true;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
155 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
156 -- Is the nickname currently reserved by another user?
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
157 local reserved_by = get_registered_jid(room, desired_nick);
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
158 if reserved_by and reserved_by ~= user_jid then
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
159 origin.send(st.error_reply(stanza, "cancel", "conflict"));
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
160 return true;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
161 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
162
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
163 if enforce_nick then
9262
37b7cf3470f1 MUC: Move comment for clarity
Matthew Wild <mwild1@gmail.com>
parents: 9240
diff changeset
164 -- Kick any sessions that are not using this nick before we register it
9240
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
165 local required_room_nick = room.jid.."/"..desired_nick;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
166 for room_nick, occupant in room:each_occupant() do
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
167 if occupant.bare_jid == user_jid and room_nick ~= required_room_nick then
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
168 room:set_role(true, room_nick, nil); -- Kick (TODO: would be nice to use 333 code)
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
169 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
170 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
171 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
172
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
173 -- Checks passed, save the registration
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
174 if registered_nick ~= desired_nick then
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
175 local registration_data = { reserved_nickname = desired_nick };
9298
2d71040a959f MUC: If a user with an existing affiliation registers, preserve that affiliation (thanks jc)
Matthew Wild <mwild1@gmail.com>
parents: 9262
diff changeset
176 local ok, err_type, err_condition = room:set_affiliation(true, user_jid, affiliation or "member", nil, registration_data);
9240
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
177 if not ok then
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
178 origin.send(st.error_reply(stanza, err_type, err_condition));
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
179 return true;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
180 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
181 module:log("debug", "Saved nick registration for %s: %s", user_jid, desired_nick);
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
182 origin.send(reply);
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
183 return true;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
184 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
185 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
186 origin.send(reply);
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
187 return true;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
188 end
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
189
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
190 return {
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
191 get_registered_nick = get_registered_nick;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
192 get_registered_jid = get_registered_jid;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
193 handle_register_iq = handle_register_iq;
f9a83aca4421 MUC: Add support for registering with a MUC, including reserving a nickname as per XEP-0045
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
194 }