first cut at a GridInfo plugin (mantis #1825). Currently just spits

out everything in the [GridInfo] section :-D Also, not yet LLSD but
XmlRpc, LLSD via GET will follow. OpenSim.ini.example contains sample
values and explanation. Oh, and default values provided are 

       platform: OpenSim
       mode: standalone | grid

have fun.

OpenSim/ApplicationPlugins/GridInfo/GridInfoPlugin.cs

@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSim Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections;
+using System.IO;
+using System.Net;
+using System.Reflection;
+using System.Timers;
+using libsecondlife;
+using log4net;
+using Nini.Config;
+using Nwc.XmlRpc;
+using OpenSim.Framework;
+using OpenSim.Framework.Servers;
+using OpenSim.Region.Environment.Modules.World.Terrain;
+using OpenSim.Region.Environment.Scenes;
+
+namespace OpenSim.ApplicationPlugins.GridInfo
+{
+    public class GridInfoPlugin : IApplicationPlugin
+    {
+        private static readonly ILog _log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+        
+        private OpenSimBase _app;
+        private BaseHttpServer _httpd;
+
+        private string _name = "GridInfoPlugin";
+        private string _version = "0.1";
+        private Hashtable _info = new Hashtable();
+
+        public string Version { get { return _version; } }
+        public string Name { get { return _name; } }
+
+        public void Initialise() 
+        { 
+            _log.Info("[GridInfo]: " + Name + " cannot be default-initialized!");
+            throw new PluginNotInitialisedException (Name);
+        }
+
+        public void Initialise(OpenSimBase openSim)
+        {
+            try
+            {
+                _log.Info("[GridInfo]: Grid Info Plugin Enabled");
+                
+                _app = openSim;
+                _httpd = openSim.HttpServer;
+
+                IConfig startupConfig = _app.ConfigSource.Source.Configs["Startup"];
+                if (!startupConfig.GetBoolean("gridmode", false))
+                {
+                    _info["mode"] = "standalone";
+                }
+                else
+                {
+                    _info["mode"] = "grid";
+                }
+                _info["platform"] = "OpenSim";
+                
+                IConfig gridInfoConfig = _app.ConfigSource.Source.Configs["GridInfo"];
+                foreach (string k in gridInfoConfig.GetKeys())
+                {
+                    _info[k] = gridInfoConfig.GetString(k);
+                }
+                
+                _httpd.AddXmlRPCHandler("get_grid_info", XmlRpcGridInfoMethod);
+            }
+            catch (NullReferenceException)
+            {
+                // Ignore.
+            }
+        }
+
+        
+
+        public XmlRpcResponse XmlRpcGridInfoMethod(XmlRpcRequest request)
+        {
+            XmlRpcResponse response = new XmlRpcResponse();
+            Hashtable responseData = new Hashtable();
+
+            _log.Info("[GridInfo]: Request for grid info");
+
+            foreach (string k in _info.Keys)
+            {
+                responseData[k] = _info[k];
+            }
+            response.Value = responseData;
+
+            return response;
+        }
+
+        public void Dispose()
+        {
+        }
+    }
+}

bin/OpenSim.ini.example

@@ -1,3 +1,23 @@
+[GridInfo]
+; login uri
+login = http://127.0.0.1:9000/
+; login page
+welcome = http://127.0.0.1/welcome
+; helper uri
+economy = http://127.0.0.1:9000/
+; web page of grid 
+about = http://127.0.0.1/about/
+; account creation
+register = http://127.0.0.1/register
+; help
+help = http://127.0.0.1/help
+; password help
+password = http://127.0.0.1/password
+; long grid name
+gridname = "the lost continent of hippo"
+; short grid name
+gridnick = "hippogrid"
+
 [Startup]
 
 ; Set this to true if you are connecting your OpenSimulator regions to a grid

prebuild.xml

@@ -1103,6 +1103,39 @@
       </Files>
     </Project>
 
+    <Project name="OpenSim.ApplicationPlugins.GridInfo" path="OpenSim/ApplicationPlugins/GridInfo" type="Library">
+      <Configuration name="Debug">
+        <Options>
+          <OutputPath>../../../bin/</OutputPath>
+        </Options>
+      </Configuration>
+      <Configuration name="Release">
+        <Options>
+          <OutputPath>../../../bin/</OutputPath>
+        </Options>
+      </Configuration>
+
+      <ReferencePath>../../../bin/</ReferencePath>
+      <Reference name="Mono.Addins.dll" />
+      <Reference name="System"/>
+      <Reference name="System.Xml"/>
+      <Reference name="libsecondlife.dll" />
+      <Reference name="Nini.dll" />
+      <Reference name="XMLRPC.dll" />
+      <Reference name="OpenSim"/>
+      <Reference name="OpenSim.Region.ClientStack"/>
+      <Reference name="OpenSim.Region.Environment"/>
+      <Reference name="OpenSim.Framework.Communications"/>
+      <Reference name="OpenSim.Framework"/>
+      <Reference name="OpenSim.Framework.Servers"/>
+      <Reference name="OpenSim.Framework.Console"/>
+      <Reference name="log4net.dll"/>
+
+      <Files>
+        <Match pattern="*.cs" recurse="true"/>
+      </Files>
+    </Project>
+
     <!-- REST plugins -->
     <Project name="OpenSim.ApplicationPlugins.Rest" 
              path="OpenSim/ApplicationPlugins/Rest" type="Library">

share/python/grid_info.py

@@ -0,0 +1,12 @@
+#!/usr/bin/python
+# -*- encoding: utf-8 -*-
+import xmlrpclib
+
+# XML-RPC URL (http_listener_port)
+gridServerURL = 'http://127.0.0.1:9000'
+
+# instantiate server object
+gridServer = xmlrpclib.Server(gridServerURL)
+
+# invoke admin_alert: requires password and message
+print gridServer.get_grid_info({})