[Opensim-dev] Get grid information from user server?

[Frisby, Adam]

Question:

Is LLSD really appropriate here? Why not just plain XML?

LLSD is only ever used by Linden Lab (hence the name) and means we need to add LLSD handlers into potentially foreign ground-up clients.

Regards,

Adam

> -----Original Message-----
> From: opensim-dev-bounces at lists.berlios.de [mailto:opensim-dev-
> bounces at lists.berlios.de] On Behalf Of Dr Scofield
> Sent: Friday, 25 July 2008 11:12 AM
> To: opensim-dev at lists.berlios.de
> Subject: Re: [Opensim-dev] Get grid information from user server?
>
> Mana Janus wrote:
> > Dr Scofield wrote:
> >
> >> Mana Janus wrote:
> >>
> >>> Hello,
> >>>
> >>> Not too long ago, I started working on a new viewer targeted at
> OpenSim
> >>> users. I like the idea of using links like
> "opensim://user.server:port/"
> >>> to easily connect to another grid. They can be handled by the
> viewer
> >>> directly, but the viewer needs more information on the grid, like
> login
> >>> page and helper URI.
> >>>
> >>> I suggest to add a new function "get_grid_info" to the user server,
> that
> >>> returns an LLSD map containing information on the grid required by
> the
> >>> viewer. The LLSD map allows to add more information any time,
> without
> >>> breaking older viewers.
> >>>
> >>> Below is an ad-hoc list of information that would be useful to the
> >>> viewer. I am sure there is more... :-)
> >>>
> >>>     * Grid name for display, allowing space and other special
> characters.
> >>>     * Short grid ID or "unixname", alphanumeric, preferably lower-
> case.
> >>>       It can be used as a part of file names for storing grid-
> specific
> >>>       information and settings.
> >>>     * Link to the login page.
> >>>     * The helper URI.
> >>>     * Link to the grid's web site.
> >>>     * Link for "create account".
> >>>     * Link for "forgotten password".
> >>>     * Link for "help" and F1.
> >>>
> >>> I guess this is not a huge effort to implement. Apart from making
> >>> opensim:// links work smoothly, it would save the user from typing
> all
> >>> those options on the command line.
> >>>
> >>>
> >> yep, yep, yep :-) a first cut is available from r5658. currently
> it's
> >> not yet an LLSD returning REST, but just an XmlRpc call to
> >> get_grid_info (i'll extend it shortly). the plugin will return as a
> >> bare minimum the platform ("OpenSim") and the mode ("grid" or
> >> "standalone"). if you provide configuration values in OpenSim.ini
> >> under the [GridInfo] section, then those will be returned as well.
> >> i've updated OpenSim.ini.example with an example section following
> >> your list and here's the result of  a python XmlRpc call (see
> >> share/python/grid_info.py):
> >>
> >>     {
> >>         'about': 'http://127.0.0.1/about/',
> >>         'welcome': 'http://127.0.0.1/welcome',
> >>         'help': 'http://127.0.0.1/help',
> >>         'register': 'http://127.0.0.1/register',
> >>         'gridnick': 'hippogrid',
> >>         'platform': 'OpenSim',
> >>         'mode': 'standalone',
> >>         'gridname': 'the lost continent of hippo',
> >>         'login': 'http://127.0.0.1:9000/',
> >>         'password': 'http://127.0.0.1/password',
> >>         'economy': 'http://127.0.0.1:9000/'
> >>     }
> >>
> >> (not sorted)
> >>
> >> will do LLSD later.
> >>
> >>     cheers,
> >>     dr scofield
> >>
> >
> > Wow, that was fast, thanks! Looks great so far!
> > As soon as I am up to 1.20 and got a Linux version, I will start on
> > retrieving this information in the viewer.
> > A REST returning LLSD will be much simpler to handle there :-)
> >
> yep. working on it. also, need to get this properly into the user
> server
> still. stay tuned.
>
>     cheers,
>     dr scofield
>
> --
> dr dirk husemann ---- virtual worlds research ---- ibm zurich research
> lab
> SL: dr scofield ---- drscofield at xyzzyxyzzy.net ----
> http://xyzzyxyzzy.net/
> RL: hud at zurich.ibm.com - +41 44 724 8573 -
> http://www.zurich.ibm.com/~hud/
>
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