[Opensim-dev] OGP/Capabilities

[Diva Canto]

Well, again, I know very little of the details of OGP, and whether is 
has evolved since last summer. But what you are describing is how things 
should be in the decentralized world. The agent should not be completely 
'given out' to untrusted regions, but should continue to be connected to 
the user's home system. And all those security-critical user-related 
functions should not be proxied by the regions, but should be performed 
by trusted components of the user's home system. And all of that, and a 
lot more, including our current configuration, can be nicely achieved 
via capabilities. But it requires a different viewer, or at least a 
different viewer component for the security-critical functions.

That's where I think the Hypergrid will go.

Linden Lab knows as well as I do what's the right thing to do; they just 
don't seem to be particularly interested in making it happen fast.


Charles Krinke wrote:
> Ah. Got it. The OGP notion is the Linden interop which is how the 
> "gridnauts" got from the betagrid to an OpenSim region and to several 
> OSGrid regions last year.
>
> But, ... I believe those avatars that teleported from the betagrid to 
> either the OpenSim standalone regions or the OSGrid regions were under 
> the AgentDomain and so were "not completely, exactly", er, "handed 
> off" to the new region. The AgentDomain was still connected to the 
> "special client" that was being used.
>
> Charles
>
> ------------------------------------------------------------------------
> *From:* Diva Canto <diva at metaverseink.com>
> *To:* opensim-dev at lists.berlios.de
> *Sent:* Tuesday, March 3, 2009 7:50:42 PM
> *Subject:* Re: [Opensim-dev] OGP/Capabilities
>
> I don't know what OGP is. I'm looking at this specific document, and 
> it's as generic as a document can be. Specifically, it doesn't say 
> anything about how to use the basic protocols HTTP+REST+CAPs. The 
> different uses will produce quite different systems, I think.
>
>
> Charles Krinke wrote:
>> If I recall correctly, and I might be wrong, but the conversation I 
>> had with the lindens about OGP had them focused on their AgentDomain. 
>> Sort of a "super grid server" if you will. When quizzed about a full 
>> handoff, they said "we arent working on that".
>>
>> So, my impression about OGP is it extends the linden grid, but is 
>> only half of an interop solution.
>>
>> Charles
>>
>> ------------------------------------------------------------------------
>> *From:* Diva Canto <diva at metaverseink.com>
>> *To:* opensim-dev at lists.berlios.de
>> *Sent:* Tuesday, March 3, 2009 7:31:32 PM
>> *Subject:* [Opensim-dev] OGP/Capabilities
>>
>> Finally Linden Lab produced an interesting document:
>> http://www.ietf.org/internet-drafts/draft-lentczner-ogp-base-00.txt
>>
>> I think capabilities are the right concept here, and I'm pleased to see
>> them taking center stage in that document. In particular the hint at
>> inventory-related capabilities, which will allow secure inventory access.
>>
>> I'm not sure I buy into some of the details, but the basic combination
>> HTTP+REST+Capabilities --> +1.
>>
>> The Event Queue...well...  It sucks. I think we need to look at
>> alternatives for posting things to the client. I can't believe there
>> aren't any; I think there are, but maybe they all come down to this,
>> event queues on the server-side, whatever their form.
>>
>> If there are no better alternatives, then we need at least to rethink
>> what the EQ is all about. If the EQ CAP is not given to the regions, but
>> stays within the user's home system, that might work. Also, if there
>> would be several different *types* of Event Queues that might work well
>> too; so for example, we might give the social-net-related EQ CAP
>> (groups, IM, etc) to the social net component without compromising agent
>> transfers. The more I think about this, the more I'm convinced that
>> regions have no business in agent transfer activities, other than
>> negotiating the capabilities when agents come.
>>
>> I really like that document, I must say, but it's strength is also its
>> weakness. It's just about the basic levels. It says nothing about how
>> those things are driven higher up.
>>
>> Crista
>>
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