19 Aug
2025
19 Aug
'25
3:20 a.m.
Good day.
I am working on a news service for XMPP, which sends messages according
to status.
When JID is offline, service should stop.
Resources
---------
As XMPP is presence oriented, it is needed to set extra measures, such
as collecting detected resources, in order to be certain that a subject
JID is indeed offline.
This measure is still tested.
Signals
-------
I am experimenting with XEP-0199: XMPP Ping as a possible mean to
confirm that an account is offline.
However, while asking for a pong signal from a full JID (JID with a
resource) returns an empty respond, asking for a pong signal appear to
always to work when querying a bare JID (JID without a resource).
PONG: sch(a)pimux.de/gajim.TN7Y65AS None
PONG: sch(a)pimux.de 0.09115195274353027
PONG: sch(a)pimux.de/gajim.TN7Y65AS None
PONG: sch(a)pimux.de 0.10207772254943848
My expectation was to have no respond for bare JID, when there is no
connected instance to a given JID.
Please advise.
Kind reagrds,
Schimon
19 Aug
19 Aug
2:38 p.m.
A bare JID represents the account on the server, not a currently in-use resource, so you
receive a reply from the server (not the user's client.)
As with your previous question about presence probes, you seem to want everything presence
subscription is designed for whilst explicitly avoiding the use of presence subscription,
and then you complain about the problems caused by not using presence subscription.
Surprisingly, the answer is: use presence subscription.
3:45 p.m.
Tedd. Good afternoon.
It is good to read from you.
Thank you for the clarification about server reply.
I think, that I do utilize presence subscription, which is possible
only with contacts in roster.
Eventually, I was advised to collect all resources which are being
detected, and then, when contact is disconnecting and other resources
apparently still online (i.e. upon event "presence-unavailable"), to
check whether each of the rest resources are still online, be it by
utilizing XEP-0030: Service Discovery or XEP-0199: XMPP Ping.
I hope, that it is done properly.
https://git.xmpp-it.net/sch/Slixfeed/commit/382c6ea44c481751af65fdb73a5ec0e…
Again. I thank you for your advise.
Kind regards,
Schimon
On Tue, 19 Aug 2025 12:38:30 +0000
Tedd Sterr <teddsterr(a)outlook.com> wrote:
A bare JID represents the account on the server, not a
currently
in-use resource, so you receive a reply from the server (not the
user's client.)
As with your previous question about presence probes, you seem to
want everything presence subscription is designed for whilst
explicitly avoiding the use of presence subscription, and then you
complain about the problems caused by not using presence
subscription. Surprisingly, the answer is: use presence subscription.
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days inactive
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Schimon Jehudah -
Tedd Sterr