User:Gareth Ellison/Supergrid

I was asked by someone to post the specs of the supergrid to the wiki.

The supergrid is the term I use to describe the set of services I have running at litesim.com (if it is inappropriate to mention competitors to LL here, please feel free to edit out) to enable centralised login.

Basic components

Here's a brief overview of the current system as running today

metaverse.xml

This file is a listing of all known grids in a kind of local cache. It specifies as an LLSD map a listing of domains and grids under those domains together with information on what protocol each grid uses and the default region and co-ordinates with relevant URLs to different services:

<llsd>
 <map>
  <key>domains</key>
  <map>
   <key>secondlife.com</key>
    <map>
     <key>grids</key>
     <map>
     <key>agni</key>
      <map>
       <key>protocol</key>
       <string>unknown</string>
       <key>loginpage</key>
       <string>http://secondlife.com/app/login</string>
       <key>loginuri</key>
       <string>https://login.agni.lindenlab.com/cgi-bin/login.cgi</string>
       <key>desc</key>
       <string>The Second Life(TM) main grid</string>
      </map>
     <key>aditi</key>
      <map>
       <key>protocol</key>
       <string>unknown</string>
       <key>loginpage</key>
       <string>http://secondlife.com/app/login/beta</string>
       <key>loginuri</key>
       <string>https://login.aditi.lindenlab.com/cgi-bin/login.cgi</string>
       <key>desc</key>
       <string>The Second Life(TM) beta grid</string>
      </map>
     </map>
     <key>defgrid</key>
     <string>agni</string>
    </map>
    <key>osgrid.org</key>
     <map>
      <key>grids</key>
       <map>
        <key>OSGrid</key>
         <map>
          <key>protocol</key>
          <string>OGS</string>
          <key>loginuri</key>
          <string>http://www.osgrid.org:8002/</string>
          <key>defregion</key>
          <array>
           <string>Wright Plaza</string>
           <real>128.0</real>
           <real>128.0</real>
           <real>30.0</real>
          </array>
          <key>desc</key>
          <string>The first and oldest grid running on FLOSS code</string>
         </map>
        </map>
        <key>defgrid</key>
        <string>OSGrid</string>
       </map>
       <key>litesim.com</key>
       <map>
        <key>supergrid</key>
         <map>
          <key>loginpage</key>
          <string>https://www.litesim.com/loginscreen</string>
          <key>loginuri</key>
          <string>https://www.litesim.com/viewer_login</string>
          <key>desc</key>
          <string>The original and best super grid</string>
         </map>
         <key>grids</key>
          <map>
           <key>fantasyislands</key>
           <map>
            <key>session_trackers</key>
            <string>http://fantasyislands.grids.litesim.com:8000/session_trackers</string>
            <key>account_sync</key>
	    <string>http://fantasyislands.grids.litesim.com:8000/sync_ogs</string>
            <key>protocol</key>
            <string>OGS</string>
            <key>desc</key>
            <string>A Litesim Ltd customer</string>
            <key>defregion</key>
	    <array>
             <string>FantasyHQ</string>
             <real>128.0</real>
             <real>128.0</real>
             <real>30.0</real>
            </array>
            <key>loginuri</key>
	    <string>http://fantasyislands.ogs-openuser.litesim.com:8002</string>
           </map>
           <key>lsmainland</key>
	    <map>
             <key>session_trackers</key>
             <string>http://71.6.154.182:8000/session_trackers</string>
             <key>account_sync</key>
             <string>http://71.6.154.182:8000/sync_ogs</string>
             <key>protocol</key>
             <string>OGS</string>
             <key>desc</key>
             <string>The litesim.com mainland</string>
             <key>defregion</key>
             <array>
              <string>Litesim welcome</string>
              <real>128.0</real>
              <real>128.0</real>
              <real>30.0</real>
             </array>
             <key>loginuri</key>
             <string>http://lsmainland.ogs-openuser.litesim.com:8002</string>
            </map>
            <key>lsdevraw</key>
	    <map>
             <key>protocol</key>
             <string>raw</string>
             <key>desc</key>
	     <string>Litesim development grid, RAW protocol, i.e you provide a UDP endpoint as the region name</string>
            </map>
</map>
<key>defgrid</key>
<string>lsmainland</string>
</map>
</map>
</map>
</llsd>

Should a domain not occur in this listing, it is intended that the login server or other client will instead retrieve www.domain.com/metaverse.xml and attempt to obtain the same data. In the current implementation, domain.com is authorative only for grids hosted at domain.com, and www.example.com/metaverse.xml may contain grids under domain.com only for the purposes of caching. Clients connect to a grid via a non-authorative metaverse.xml at their own risk.