Carbons: add <no-copy/> hint in addition to <private/>

hacx
Georg Lukas 2017-01-26 13:08:22 +01:00 committed by Sam Whited
parent fcb12e4e8e
commit b3dee57aaf
1 changed files with 3 additions and 1 deletions

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@ -329,7 +329,7 @@
</section1>
<section1 topic='Avoiding Carbons for a single message' anchor='avoiding'>
<p>Some clients might want to avoid Carbons on a single message, while still keeping all of the other semantics of Carbon support. This might be useful for clients sending end-to-end encrypted messages, for example. To exclude a &MESSAGE; from being forwarded to other Carbons-enabled resources, the sending client add a &lt;private/&gt; element qualified by the namespace "urn:xmpp:carbons:2" as a child content element to the &MESSAGE; stanza.</p>
<p>Some clients might want to avoid Carbons on a single message, while still keeping all of the other semantics of Carbon support. This might be useful for clients sending end-to-end encrypted messages, for example. To exclude a &MESSAGE; from being forwarded to other Carbons-enabled resources, the sending client must add a &lt;private/&gt; element qualified by the namespace "urn:xmpp:carbons:2" and a &lt;no-copy/&gt; hint according to &xep0334; as child content elements to the &MESSAGE; stanza.</p>
<p><strong>Note:</strong> use of the private mechanism might lead to partial conversations on other devices. This is the intended effect.</p>
@ -341,6 +341,7 @@
<body>Neither, fair saint, if either thee dislike.</body>
<thread>0e3141cd80894871a68e6fe6b1ec56fa</thread>
<private xmlns='urn:xmpp:carbons:2'/>
<no-copy xmlns="urn:xmpp:hints"/>
</message>]]></example>
<example caption='Romeo&apos;s server delivers original message, without creating Carbon copies'><![CDATA[
@ -351,6 +352,7 @@
<body>Neither, fair saint, if either thee dislike.</body>
<thread>0e3141cd80894871a68e6fe6b1ec56fa</thread>
<private xmlns='urn:xmpp:carbons:2'/>
<no-copy xmlns="urn:xmpp:hints"/>
</message>]]></example>
<p>The sending server MUST NOT deliver forwarded &MESSAGE;s to the other Carbons-enabled resources of the sender. The receiving server MUST NOT deliver forwarded &MESSAGE;s to the other Carbons-enabled resource of the recipient, and SHOULD remove the &lt;private/&gt; element before delivering to the recipient.</p>
<p><strong>Note:</strong> if the private &MESSAGE; stanza is addressed to a bare JID, the receiving server still delivers it according to <cite>RFC 6121</cite>. This might result in a copy being delivered to each resource for the recipient, which effectively negates the behavior of the &lt;private/&gt; element for recipients.</p>