# server supports contact subscription pre-approval (RFC 6121 3.4) [Client] Alice jid: preappove-a@localhost password: password [Client] Bob jid: preapprove-b@localhost password: password --------- Alice connects Alice sends: <presence/> Alice receives: <presence/> Alice sends: <presence to="${Bob's JID}" type="subscribed"/> Bob connects Bob sends: <iq type="get" id="roster1"> <query xmlns="jabber:iq:roster"/> </iq> Bob receives: <iq type="result" id="roster1"> <query xmlns="jabber:iq:roster" ver="{scansion:any}"> </query> </iq> Bob sends: <presence/> Bob receives: <presence from="${Bob's full JID}"/> Bob sends: <presence to="${Alice's JID}" type="subscribe" /> Bob receives: <iq type='set' id='{scansion:any}'> <query ver='1' xmlns='jabber:iq:roster'> <item jid="${Alice's JID}" subscription='none' ask='subscribe' /> </query> </iq> Bob receives: <presence from="${Alice's JID}" type="subscribed" /> Bob disconnects Alice sends: <iq type="get" id="roster1"> <query xmlns="jabber:iq:roster"/> </iq> Alice receives: <iq type="result" id="roster1"> <query xmlns="jabber:iq:roster" ver="{scansion:any}"> <item jid="${Bob's JID}" subscription="from" /> </query> </iq> Alice disconnects Bob disconnects