git-svn-id: file:///home/ksmith/gitmigration/svn/xmpp/trunk@621 4b5297f7-1745-476d-ba37-a9c6900126ab
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Peter Saint-Andre 2007-02-28 17:52:44 +00:00
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]]></example>
</section1>
<section1 topic='Implementation Notes' anchor='impl'>
<p>The information contained in an IQ reply for this namespace is inherently aambiguous. Specifically, for a bare JID (&BAREJID;) the information is the time since the JID was last connected to its server; for a full JID (&FULLJID;) the information is the time since the resource was last active in the context of an existing session; and for a bare domain the information is the uptime for the server or component. An application must take these differences into account when presenting the information to a human user.</p>
<p>The information contained in an IQ reply for this namespace is inherently ambiguous. Specifically, for a bare JID (&BAREJID;) the information is the time since the JID was last connected to its server; for a full JID (&FULLJID;) the information is the time since the resource was last active in the context of an existing session; and for a bare domain the information is the uptime for the server or component. An application must take these differences into account when presenting the information to a human user.</p>
</section1>
<section1 topic='Security Considerations' anchor='security'>
<p>A server MUST NOT allow an unauthorized entity to learn a user's network availability by sending a Last Activity request to a JID of the form user@host or user@host/resource; i.e., Last Activity information MAY be divulged only to those entities that have permission to view the user's presence via a presence subscription (potentially as restricted by &xep0016; or &xep0191;).</p>