mirror of
https://github.com/moparisthebest/xeps
synced 2024-11-22 09:12:19 -05:00
179 lines
7.3 KiB
XML
179 lines
7.3 KiB
XML
<?xml version='1.0' encoding='UTF-8'?>
|
|
<!DOCTYPE xep SYSTEM 'xep.dtd' [
|
|
<!ENTITY % ents SYSTEM 'xep.ent'>
|
|
%ents;
|
|
]>
|
|
<?xml-stylesheet type='text/xsl' href='xep.xsl'?>
|
|
<xep>
|
|
<header>
|
|
<title>MUC Mention Notifications</title>
|
|
<abstract>This specification documents how a user may be informed when they're mentioned in a MUC which they're not currently joined to.</abstract>
|
|
&LEGALNOTICE;
|
|
<number>0452</number>
|
|
<status>Experimental</status>
|
|
<type>Standards Track</type>
|
|
<sig>Standards</sig>
|
|
<approver>Council</approver>
|
|
<dependencies>
|
|
<spec>XMPP Core</spec>
|
|
<spec>XEP-0001</spec>
|
|
<spec>Etc.</spec>
|
|
</dependencies>
|
|
<supersedes/>
|
|
<supersededby/>
|
|
<shortname>NOT_YET_ASSIGNED</shortname>
|
|
&jcbrand;
|
|
<author>
|
|
<firstname>Severino</firstname>
|
|
<surname>Ferrer de la Peñita</surname>
|
|
<email>soul@blastersklan.com</email>
|
|
<jid>soul@blastersklan.com</jid>
|
|
</author>
|
|
&mwild;
|
|
<revision>
|
|
<version>0.2.2</version>
|
|
<date>2022-01-11</date>
|
|
<initials>gh/@xnamed</initials>
|
|
<remark>Fix addresses in example</remark>
|
|
</revision>
|
|
<revision>
|
|
<version>0.2.1</version>
|
|
<date>2021-02-12</date>
|
|
<initials>ps</initials>
|
|
<remark>Fix reference to XEP-0297: Stanza Forwarding</remark>
|
|
</revision>
|
|
<revision>
|
|
<version>0.2.0</version>
|
|
<date>2021-02-09</date>
|
|
<initials>jcb</initials>
|
|
<remark>Require nickname registration for notifications to work</remark>
|
|
</revision>
|
|
<revision>
|
|
<version>0.1.0</version>
|
|
<date>2021-01-26</date>
|
|
<initials>XEP Editor (jsc)</initials>
|
|
<remark>Accepted by vote of Council on 2021-01-06.</remark>
|
|
</revision>
|
|
<revision>
|
|
<version>0.0.1</version>
|
|
<date>2020-12-17</date>
|
|
<initials>jcb</initials>
|
|
<remark><p>First draft.</p></remark>
|
|
</revision>
|
|
</header>
|
|
|
|
<section1 topic='Introduction' anchor='intro'>
|
|
<p>The &xep0045; specification does not provide for a mechanism whereby an user might be informed of being mentioned in a Multi-User Chat (MUC) without being present as an occupant of that MUC.</p>
|
|
<p>This XEP aims to provide a standardized way in which this might be achieved.</p>
|
|
<p>Concerning "being mentioned" in a MUC, we will rely on &xep0372; as the means whereby someone is explicitly mentioned in a MUC message.</p>
|
|
</section1>
|
|
|
|
<section1 topic='Requirements' anchor='reqs'>
|
|
<p>A user's client must be able to receive forwarded groupchat messages from a MUC in which that user is mentioned, while not having an active session in that MUC (i.e. without joining it).</p>
|
|
<p>For this to be possible, the MUC needs to know the user's JID and MUC nickname even when that user is not currently present in the MUC. &xep0045; section 7.10 ("Registering with a Room") describes a mechanism whereby a user can register a nickname with a MUC and it is recommended that this is the mechanism used to keep track of users across sessions.</p>
|
|
<p>Whether or not mesages are forwarded will be determined by a configuration setting on the MUC.</p>
|
|
<p>The MUC owner(s) will therefore determine whether notifications are sent out, and if activated, users may opt in or out (or have that done for them by a privileged user) by having their nicknames registered or not with the MUC.</p>
|
|
</section1>
|
|
|
|
<section1 topic='Use Cases' anchor='usecases'>
|
|
|
|
<section2 topic='A MUC is configured to send out mention notifications'>
|
|
<p>When an owner creates or configures a MUC, the service offers the option to send out mention notifications to non-present, but still affiliated users:</p>
|
|
<example caption='Service Sends Configuration Form'><![CDATA[
|
|
<iq from='coven@chat.shakespeare.lit'
|
|
id='create1'
|
|
to='crone1@shakespeare.lit/desktop'
|
|
type='result'>
|
|
<query xmlns='http://jabber.org/protocol/muc#owner'>
|
|
<x xmlns='jabber:x:data' type='form'>
|
|
<field type='hidden' var='FORM_TYPE'>
|
|
<value>http://jabber.org/protocol/muc#roomconfig</value>
|
|
</field>
|
|
...
|
|
<field
|
|
label='Forward messages with mentions to non-present, affiiated users'
|
|
type='boolean'
|
|
var='muc#roomconfig_forwardmentions'>
|
|
<value>0</value>
|
|
</field>
|
|
...
|
|
</x>
|
|
</query>
|
|
</iq>
|
|
]]></example>
|
|
<p>The owner specifies a value of "1" or "true" &BOOLEANNOTE; if the feature is desired:</p>
|
|
<example caption='MUC Owner Submits Configuration Form'><![CDATA[
|
|
<iq from='crone1@shakespeare.lit/desktop'
|
|
id='configure1'
|
|
to='coven@chat.shakespeare.lit'
|
|
type='set'>
|
|
<query xmlns='http://jabber.org/protocol/muc#owner'>
|
|
<x xmlns='jabber:x:data' type='submit'>
|
|
<field type='hidden' var='FORM_TYPE'>
|
|
<value>http://jabber.org/protocol/muc#roomconfig</value>
|
|
</field>
|
|
...
|
|
<field var='muc#roomconfig_forwardmentions'>
|
|
<value>true</value>
|
|
</field>
|
|
...
|
|
</x>
|
|
</query>
|
|
</iq>
|
|
]]></example>
|
|
<p></p>
|
|
</section2>
|
|
|
|
<section2 topic='Notifying a non-present user of being mentioned in a MUC'>
|
|
<p>When an affiliated user in a given MUC is referenced in a 'groupchat' message via &xep0372;, and the MUC is configured to forward mentions, then the MUC will forward the message stanza to the user.</p>
|
|
<example caption='MUC forwards the message to the users client'><![CDATA[
|
|
<message to='hag66@shakespeare.lit' from='coven@chat.shakespeare.lit'>
|
|
<mentions xmlns='urn:xmpp:mmn:0'>
|
|
<forwarded xmlns='urn:xmpp:forward:0'>
|
|
<delay xmlns='urn:xmpp:delay' stamp='2020-12-03T14:45:56Z'/>
|
|
<message type='groupchat' id='ad22c55c-5a20-4185-8735-af2eb8d459a9'
|
|
to='coven@chat.shakespeare.lit'
|
|
from='coven@chat.shakespeare.lit/firstwitch'
|
|
xml:lang='en'>
|
|
<body>secondwitch: Thrice the brinded cat hath mew'd.</body>
|
|
<reference xmlns='urn:xmpp:reference:0'
|
|
type='mention'
|
|
begin='0'
|
|
uri='xmpp:hag66@shakespeare.lit'
|
|
end='11'/>
|
|
<stanza-id xmlns='urn:xmpp:sid:0'
|
|
id='5f3dbc5e-e1d3-4077-a492-693f3769c7ad'
|
|
by='coven@chat.shakespeare.lit'/>
|
|
</message>
|
|
</forwarded>
|
|
</mentions>
|
|
</message>
|
|
]]></example>
|
|
<p>Notice that in the example above, the entire original 'groupchat' message (including elements added server-side, like the &xep0359; stanza-id) is encapsulated inside a &xep0297; element.</p>
|
|
</section2>
|
|
</section1>
|
|
|
|
<section1 topic='Security Considerations' anchor='security'>
|
|
<p>Similarly to &xep0280;, the security model assumed by this document is that all of the resources for a single user are in the same trust boundary.</p>
|
|
<p>Forwarded groupchat messages leak information of who is currently present in a MUC without requiring the user to join the MUC first to find out.</p>
|
|
<ul>
|
|
<li>Any forwarded copies received by a client MUST be from a valid MUC JID which matches the MUC JID of the encapsulated, forwarded mesages;</li>
|
|
<li>any copies that do not meet this requirement MUST be ignored.</li>
|
|
</ul>
|
|
</section1>
|
|
<section1 topic='IANA Considerations' anchor='iana'>
|
|
<p>None.</p>
|
|
</section1>
|
|
<section1 topic='XMPP Registrar Considerations' anchor='registrar'>
|
|
<section2 topic='Protocol Namespaces' anchor='ns'>
|
|
<p>The ®ISTRAR; includes 'urn:xmpp:mmn:0' in its registry of protocol namespaces (see &NAMESPACES;).</p>
|
|
<ul>
|
|
<li>urn:xmpp:mmn:0</li>
|
|
</ul>
|
|
</section2>
|
|
<section2 topic='Protocol Versioning' anchor='registrar-versioning'>
|
|
&NSVER;
|
|
</section2>
|
|
</section1>
|
|
</xep>
|