Ensure that presence-offline
plugin is enabled in config.tdsl. To do this, add be sure presence-offline
is listed under sess-man
'sess-man' { 'presence-offline' () {} }
The following two lines in sess-man
configure options to broadcast probes to offline users.
'sess-man' { 'skip-offline' = 'false' 'skip-offline-sys' = 'false' }
Without these lines, Tigase will not send presence probes to users that the server knows to be offline.
The full XML presence is stored under the tig_pairs table with a pkey of last-unavailable-presence
will look like this:
<presence from="user@example.com" xmlns="jabber:client" type="unavailable"> <status>Logged out</status> <delay stamp="2015-12-29T16:51:50.748Z" xmlns="urn:xmpp:delay"/></presence>
As you can see, the plugin has added a delay stamp which indicates the last time they were seen online. This may be suppressed by using the following line in your config.tdsl file.
'sess-man' { 'delay-stamp' = 'false' }
You may also limit probe responses only to newly connected resources.
'sess-man' { 'probe-full-jid' = 'true' }
When a user logs on, they will receive the same full unavailable presence statements from contacts not logged in. Also the repository entry containing their last unavailable presence will be removed.
NOTE: This will increase traffic with users with many people on their rosters.