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XEP-0367: Update to specify the correct ID to use within MUCs

This commit is contained in:
Matthew Wild 2018-08-18 18:08:11 +01:00
parent e3b0861628
commit eb87a3b0bc
1 changed files with 78 additions and 45 deletions
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xep-0367.xml
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@ -14,7 +14,7 @@
</abstract> </abstract>
&LEGALNOTICE; &LEGALNOTICE;
<number>0367</number> <number>0367</number>
<status>Deferred</status> <status>Experimental</status>
<type>Standards Track</type> <type>Standards Track</type>
<sig>Standards</sig> <sig>Standards</sig>
<approver>Council</approver> <approver>Council</approver>
@ -30,6 +30,13 @@
<surname>Petchell</surname> <surname>Petchell</surname>
<email>cpetchell@atlassian.com</email> <email>cpetchell@atlassian.com</email>
</author> </author>
&mwild;
<revision>
<version>0.3</version>
<date>2018-08-18</date>
<initials>mw</initials>
<remark>Update to use unique stanza ids.</remark>
</revision>
<revision> <revision>
<version>0.2</version> <version>0.2</version>
<date>2017-09-11</date> <date>2017-09-11</date>
@ -66,7 +73,7 @@
<section1 topic='Discovering support' anchor='disco'> <section1 topic='Discovering support' anchor='disco'>
<p> <p>
If a client implements message attaching, it MUST specify the If a client implements message attaching, it MUST specify the
'urn:xmpp:message-attaching:0' feature in its service discovery information 'urn:xmpp:message-attaching:1' feature in its service discovery information
features as specified in &xep0030; and the Entity Capabilities profile features as specified in &xep0030; and the Entity Capabilities profile
specified in &xep0115;. specified in &xep0115;.
</p> </p>
@ -83,7 +90,7 @@
id='miuARo9V'> id='miuARo9V'>
<query xmlns='http://jabber.org/protocol/disco#info'> <query xmlns='http://jabber.org/protocol/disco#info'>
… …
<feature var='urn:xmpp:message-attaching:0'/> <feature var='urn:xmpp:message-attaching:1'/>
… …
</query> </query>
</iq>]]></example> </iq>]]></example>
@ -91,16 +98,17 @@
<section1 topic='Usage' anchor='usage'> <section1 topic='Usage' anchor='usage'>
<p> <p>
Messages that are attached to other messages MUST contain an Messages that are attached to other messages MUST contain an
&lt;attach-to/&gt; element qualified by the 'urn:xmpp:message-attaching:0' &lt;attach-to/&gt; element qualified by the 'urn:xmpp:message-attaching:1'
namespace and with an 'id' attribute set to the ID of the message that we namespace and with an 'id' attribute set to the ID of the message that we
want to attach to. Messages MAY be attached to any other message, including want to attach to (important note: the correct ID to use depends on the context,
those sent by other clients, but clients MAY choose to ignore the attach-to see the business rules below). Messages MAY be attached to any
directive and display the message normally. other message, including those sent by other clients, but clients MAY choose
to ignore the attach-to directive and display the message normally.
</p> </p>
<example caption='User attaches a message'><![CDATA[ <example caption='User attaches a message'><![CDATA[
<message to='antonio@milan.lit/ship' from='prospero@milan.lit/island id='RgEGnjqy'> <message to='antonio@milan.lit/ship' from='prospero@milan.lit/island id='RgEGnjqy'>
<body>storm.png</body> <body>storm.png</body>
<attach-to id='oldmessage1' xmlns='urn:xmpp:message-attaching:0'/> <attach-to id='SD24VCzSYQ' xmlns='urn:xmpp:message-attaching:1'/>
</message>]]></example> </message>]]></example>
<p> <p>
Note that indicating that a message should be "attached" to an earlier Note that indicating that a message should be "attached" to an earlier
@ -109,6 +117,21 @@
</p> </p>
</section1> </section1>
<section1 topic='Business Rules' anchor='rules'> <section1 topic='Business Rules' anchor='rules'>
<section2 topic='Using the correct ID' anchor='business-id'>
<p>
For messages of type 'groupchat', the stanza's 'id' attribute MUST NOT be
used for attachments. Instead, in group chat situations, the ID assigned to
the stanza by the group chat itself must be used. This is discovered in a
&lt;stanza-id&gt; element with a 'by' attribute that matches the bare JID of
the group chat, as defined in &xep0359;.
</p>
<p>
For other message types the attacher should use the 'id' from a XEP-0359
&lt;origin-id&gt; if present, or the value of the 'id' attribute on the
&lt;message&gt; otherwise.
</p>
</section2>
<section2 topic='Display of attached messages' anchor='business-display'>
<p> <p>
A receiving client MAY choose to show the attached message next to or below A receiving client MAY choose to show the attached message next to or below
the indicated message in whatever display is used for messages or can the indicated message in whatever display is used for messages or can
@ -119,6 +142,8 @@
A receiving client SHOULD indicate that the message is an attachment, and A receiving client SHOULD indicate that the message is an attachment, and
not a part of the original message to prevent confusion. not a part of the original message to prevent confusion.
</p> </p>
</section2>
<section2 topic='General' anchor='business-general'>
<p> <p>
&lt;attach-to/&gt; elements MUST NOT be put on any stanza type other than &lt;attach-to/&gt; elements MUST NOT be put on any stanza type other than
messages. messages.
@ -138,13 +163,21 @@
error which may be attached to the message that caused the error to be error which may be attached to the message that caused the error to be
generated. generated.
</p> </p>
</section2>
</section1> </section1>
<section1 topic='Security Considerations' anchor='security'> <section1 topic='Security Considerations' anchor='security'>
<p> <p>
Clients that implement message attachments MUST be careful not to display Clients that implement message attachments MUST display the attachments
the attachments in such a way that they could be confused with the original in such a way that they could be confused with the original message and
message and cause someone viewing the conversation to assume they were sent cause someone viewing the conversation to assume they were sent by the
by the sender of the message being attached to. sender of the message being attached to.
</p>
<p>
When matching a received attachment to the original message, clients must
ensure they match using the correct ID, as described in the business rules
section, e.g. within a group chat only the XEP-0359 stanza-id should be
matched against. If this is not available, the message SHOULD be displayed
as a normal unattached message.
</p> </p>
</section1> </section1>
<section1 topic='IANA Considerations' anchor='iana'> <section1 topic='IANA Considerations' anchor='iana'>
@ -153,7 +186,7 @@
<section1 topic='XMPP Registrar Considerations' anchor='registrar'> <section1 topic='XMPP Registrar Considerations' anchor='registrar'>
<p>This specification defines the following XML namespaces:</p> <p>This specification defines the following XML namespaces:</p>
<ul> <ul>
<li>urn:xmpp:message-attaching:0</li> <li>urn:xmpp:message-attaching:1</li>
</ul> </ul>
<p> <p>
The &REGISTRAR; shall include the foregoing namespaces in its disco The &REGISTRAR; shall include the foregoing namespaces in its disco
@ -161,7 +194,7 @@
</p> </p>
<code caption='Registry Submission'><![CDATA[ <code caption='Registry Submission'><![CDATA[
<var> <var>
<name>urn:xmpp:message-attaching:0</name> <name>urn:xmpp:message-attaching:1</name>
<desc>Indicates support for attaching one message to another.</desc> <desc>Indicates support for attaching one message to another.</desc>
<doc>XEP-xxxx</doc> <doc>XEP-xxxx</doc>
</var> </var>
@ -173,8 +206,8 @@
<xs:schema <xs:schema
xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:xs='http://www.w3.org/2001/XMLSchema'
targetNamespace='urn:xmpp:message-attaching:0' targetNamespace='urn:xmpp:message-attaching:1'
xmlns='urn:xmpp:message-attaching:0' xmlns='urn:xmpp:message-attaching:1'
elementFormDefault='qualified'> elementFormDefault='qualified'>
<xs:element name='attach-to'> <xs:element name='attach-to'>