Current File : //data/www_bck/varak.net_bck/jwchat.varak.net/docs/DEVELOPER.rst
Subscription flow
=================
Happy flow
----------
Contact1 makes a presence subscription request to contact2.
::
<presence type="subscribe" to="contact2@localhost"/>
Contact1 receives a roster update
::
<iq type="set" to="contact1@localhost">
<query xmlns="jabber:iq:roster">
<item jid="contact2@localhost" ask="subscribe" subscription="none"></item>
</query>
</iq>
Contact2 receives the presence subscription, but no
roster update. We create a roster item manually in
handleIncomingSubscription and add the 'requesting'
property to indicate that this is an incoming request.
Contact2 clicks "Accept". This confirms the
subscription and subscribes back.
::
<presence type="subscribed" to="contact1@localhost"/>
<presence type="subscribe" to="contact1@localhost"/>
IF Contact1 is still online and likewise subscribes back, Contact2 will receive a roster update
::
<iq type="set" to="contact2@localhost">
<query xmlns="jabber:iq:roster">
<item jid="contact1@localhost" ask="subscribe" subscription="from"></item>
</query>
</iq>
ELSE, Contact 2 will receive a roster update (but not an IQ stanza)
::
ask = null
subscription = "from"
Contact1's converse.js client will automatically
approve.
Contact2 receives a roster update (as does contact1).
::
<iq type="set" to="contact2@localhost">
<query xmlns="jabber:iq:roster">
<item jid="contact1@localhost" subscription="both"></item>
</query>
</iq>
Mini Shell