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XEP-0384: mention that sending to group chat involves offline members

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Daniel Gultsch 2020-03-10 09:09:50 +01:00
parent 0ab5532af1
commit 91cf8060c5
1 changed files with 1 additions and 1 deletions
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xep-0384.xml
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@ -542,7 +542,7 @@
<p>A Multi-User Chat room that supports OMEMO MUST be configured non-anonymous and SHOULD be configured members-only.</p>
<p>A participant wanting to send a message to a group chat MUST first retrieve the members list and then fetch the device list for each member (via pubsub and to their real JIDs) and then subsequently fetch all bundles referenced by the device lists.</p>
<section3 topic='Retrieving and maintaining members list' anchor='members-list'>
<p>On join a participant MUST request the member list, the admin list and the owner list as described in <link url='https://xmpp.org/extensions/xep-0045.html#modifymember'><cite>XEP-0045</cite> §9.5</link>, <link url='https://xmpp.org/extensions/xep-0045.html#modifyadmin'><cite>XEP-0045</cite> §10.8</link>, and <link url='https://xmpp.org/extensions/xep-0045.html#modifyowner'><cite>XEP-0045</cite> §10.5</link> respectively. Those three lists MUST be combined as the recipients of OMEMO encrypted messages. Once joined a participant MUST keep track of affiliation changes that occur in the room. This is both for removals (users getting banned or have their affiliation set to none) and users becoming members, admins or owners.</p>
<p>On join a participant MUST request the member list, the admin list and the owner list as described in <link url='https://xmpp.org/extensions/xep-0045.html#modifymember'><cite>XEP-0045</cite> §9.5</link>, <link url='https://xmpp.org/extensions/xep-0045.html#modifyadmin'><cite>XEP-0045</cite> §10.8</link>, and <link url='https://xmpp.org/extensions/xep-0045.html#modifyowner'><cite>XEP-0045</cite> §10.5</link> respectively. The real JIDs from those three lists MUST be combined as the recipients of OMEMO encrypted messages. This includes recipients who are currently offline. Once joined a participant MUST keep track of affiliation changes that occur in the room. This is both for removals (users getting banned or have their affiliation set to none) and users becoming members, admins or owners.</p>
</section3>
<section3 topic='Fetching devices and bundles' anchor='group-fetch'>
<p>Before sending a message a participant MUST explicitly fetch device lists (if not already cached) for each of the members.</p>