[ejabberd] using PEP to share current location
simon at imaginator.com
Mon Jul 21 13:54:42 MSD 2008
Peter Saint-Andre wrote:
> Sorry, I didn't pay close attention to the previous messages in this
> thread. Are those strings node IDs or item IDs? I don't see why you
> would need prev, "curr", and next with PEP because the node can keep the
> history of locations published to the "geoloc" node.
node IDs. So the location server publishes the user's location (at Home
in this case) thus:
<iq from='user at buddycloud.com' type='set' id='pub1'>
<geoloc xmlns='http://jabber.org/protocol/geoloc' xml:lang='en'>
* http://jabber.org/protocol/geoloc-next should perhaps more accurately
be called geoloc-intended-next location. Users use it as a way to show
their friends where they plan on hanging out. A user may pass through
other locations like "Main Train Station, Munich" on their way there.
* <locality> (or "<description>") then contains: "Black bean coffee" or
"drinks @Ed-Moses Bar @ 22:00" or even "Homework free nirvana". (a real
place the user selects from their list of places or free text).
* Our logic is currently that "geoloc-prev" is only populated with your
location once you have moved away from it after having spent more than
10 minutes there. Additionally if you arrive at your "geoloc-next" and
it is a real place like the "Black-Bean Coffee" then we set your geoloc
node and empty your geoloc-next node.
* I think you will agree that this is a bit more than just recording the
history of places. We do keep a full history of places passed through in
the location server's database though. It got me wondering though: is
there a way to query a node's history?
> Why don't you use <description/> for that?
Rereading the XEP-0080 specification, it looks like that is more
PS: If you are interested in running location based services over XMPP,
I've updated our XMPP API page: http://blog.buddycloud.com/node/1
Simon Tennant _____________________________________________
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