1 files changed, 214 insertions, 12 deletions

diff --git a/OpenSim/Server/Base/ServerUtils.cs b/OpenSim/Server/Base/ServerUtils.cs
index 42c82cf..210a314 100644
--- a/OpenSim/Server/Base/ServerUtils.cs
+++ b/OpenSim/Server/Base/ServerUtils.cs
@@ -33,11 +33,163 @@ using System.Xml.Serialization;
 using System.Text;
 using System.Collections.Generic;
 using log4net;
+using Nini.Config;
 using OpenSim.Framework;
 using OpenMetaverse;
+using Mono.Addins;
+using OpenSim.Framework.Servers.HttpServer;
+using OpenSim.Framework.Servers;
 
+
+[assembly:AddinRoot("Robust", "0.1")]
 namespace OpenSim.Server.Base
 {
+    [TypeExtensionPoint(Path="/Robust/Connector", Name="RobustConnector")]
+    public interface IRobustConnector
+    {
+        string ConfigName
+        {
+            get;
+        }
+
+        bool Enabled
+        {
+            get;
+        }
+
+        string PluginPath
+        {
+            get;
+            set;
+        }
+
+        uint Configure(IConfigSource config);
+        void Initialize(IHttpServer server);
+        void Unload();
+    }
+
+    public class PluginLoader
+    {
+        static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        public AddinRegistry Registry
+        {
+            get;
+            private set;
+        }
+
+        public IConfigSource Config
+        {
+            get;
+            private set;
+        }
+
+        public PluginLoader(IConfigSource config, string registryPath)
+        {
+            Config = config;
+
+            Registry = new AddinRegistry(registryPath, ".");
+            suppress_console_output_(true);
+            AddinManager.Initialize(registryPath);
+            suppress_console_output_(false);
+            AddinManager.Registry.Update();
+            CommandManager commandmanager = new CommandManager(Registry);
+            AddinManager.AddExtensionNodeHandler("/Robust/Connector", OnExtensionChanged);
+        }
+
+        private static TextWriter prev_console_;
+        // Temporarily masking the errors reported on start
+        // This is caused by a non-managed dll in the ./bin dir
+        // when the registry is initialized. The dll belongs to
+        // libomv, which has a hard-coded path to "." for pinvoke
+        // to load the openjpeg dll
+        //
+        // Will look for a way to fix, but for now this keeps the 
+        // confusion to a minimum. this was copied from our region
+        // plugin loader, we have been doing this in there for a long time.
+        //
+        public void suppress_console_output_(bool save)
+        {
+            if (save)
+            {
+                prev_console_ = System.Console.Out;
+                System.Console.SetOut(new StreamWriter(Stream.Null));
+            }
+            else
+            {
+                if (prev_console_ != null)
+                    System.Console.SetOut(prev_console_);
+            }
+        }
+
+        private void OnExtensionChanged(object s, ExtensionNodeEventArgs args)
+        {
+            IRobustConnector connector = (IRobustConnector)args.ExtensionObject;
+            Addin a = Registry.GetAddin(args.ExtensionNode.Addin.Id);
+
+            if(a == null)
+            {
+                Registry.Rebuild(null);
+                a = Registry.GetAddin(args.ExtensionNode.Addin.Id);
+            }
+
+            switch(args.Change)
+            {
+                case ExtensionChange.Add:
+                    if (a.AddinFile.Contains(Registry.DefaultAddinsFolder))
+                    {
+                        m_log.InfoFormat("[SERVER UTILS]: Adding {0} from registry", a.Name);
+                        connector.PluginPath = System.IO.Path.Combine(Registry.DefaultAddinsFolder,a.Name.Replace(',', '.'));                    }
+                    else
+                    {
+                        m_log.InfoFormat("[SERVER UTILS]: Adding {0} from ./bin", a.Name);
+                        connector.PluginPath = a.AddinFile;
+                    }
+                    LoadPlugin(connector);
+                    break;
+                case ExtensionChange.Remove:
+                    m_log.InfoFormat("[SERVER UTILS]: Removing {0}", a.Name);
+                    UnloadPlugin(connector);
+                    break;
+            }
+        }
+
+        private void LoadPlugin(IRobustConnector connector)
+        {
+            IHttpServer server = null;
+            uint port = connector.Configure(Config);
+
+            if(connector.Enabled)
+            {
+                server = GetServer(connector, port);
+                connector.Initialize(server);
+            }
+            else
+            {
+                m_log.InfoFormat("[SERVER UTILS]: {0} Disabled.", connector.ConfigName);
+            }
+        }
+
+        private void UnloadPlugin(IRobustConnector connector)
+        {
+            m_log.InfoFormat("[SERVER UTILS]: Unloading {0}", connector.ConfigName);
+
+            connector.Unload();
+        }
+
+        private IHttpServer GetServer(IRobustConnector connector, uint port)
+        {
+            IHttpServer server;
+
+            if(port != 0)
+                server = MainServer.GetHttpServer(port);
+            else    
+                server = MainServer.Instance;
+
+            return server;
+        }
+    }
+
     public static class ServerUtils
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
@@ -63,20 +215,30 @@ namespace OpenSim.Server.Base
         /// <param name="dllName"></param>
         /// <param name="args">The arguments which control which constructor is invoked on the plugin</param>
         /// <returns></returns>
-        public static T LoadPlugin<T>(string dllName, Object[] args) where T:class
+        public static T LoadPlugin<T> (string dllName, Object[] args) where T:class
         {
             // This is good to debug configuration problems
             //if (dllName == string.Empty)
             //    Util.PrintCallStack();
-
-            string[] parts = dllName.Split(new char[] {':'});
-
-            dllName = parts[0];
-
+            
             string className = String.Empty;
 
-            if (parts.Length > 1)
-                className = parts[1];
+            // The path for a dynamic plugin will contain ":" on Windows
+            string[] parts = dllName.Split (new char[] {':'});
+
+            if (parts [0].Length > 1) 
+            {
+                dllName = parts [0];
+                if (parts.Length > 1)
+                    className = parts[1];
+            } 
+            else 
+            {
+                // This is Windows - we must replace the ":" in the path
+                dllName = String.Format ("{0}:{1}", parts [0], parts [1]);
+                if (parts.Length > 2)
+                    className = parts[2];
+            }
 
             return LoadPlugin<T>(dllName, className, args);
         }
@@ -118,8 +280,11 @@ namespace OpenSim.Server.Base
                             {
                                 if (!(e is System.MissingMethodException))
                                 {
-                                    m_log.ErrorFormat("Error loading plugin {0} from {1}. Exception: {2}",
-                                        interfaceName, dllName, e.InnerException == null ? e.Message : e.InnerException.Message);
+                                    m_log.ErrorFormat("[SERVER UTILS]: Error loading plugin {0} from {1}. Exception: {2}, {3}",
+                                        interfaceName, 
+                                        dllName, 
+                                        e.InnerException == null ? e.Message : e.InnerException.Message, 
+                                        e.StackTrace);
                                 }
                                 return null;
                             }
@@ -133,14 +298,14 @@ namespace OpenSim.Server.Base
             }
             catch (ReflectionTypeLoadException rtle)
             {
-                m_log.Error(string.Format("Error loading plugin from {0}:\n{1}", dllName,
+                m_log.Error(string.Format("[SERVER UTILS]: Error loading plugin from {0}:\n{1}", dllName,
                     String.Join("\n", Array.ConvertAll(rtle.LoaderExceptions, e => e.ToString()))),
                     rtle);
                 return null;
             }
             catch (Exception e)
             {
-                m_log.Error(string.Format("Error loading plugin from {0}", dllName), e);
+                m_log.Error(string.Format("[SERVER UTILS]: Error loading plugin from {0}", dllName), e);
                 return null;
             }
         }
@@ -333,5 +498,42 @@ namespace OpenSim.Server.Base
 
             return ret;
         }
+
+        public static IConfig GetConfig(string configFile, string configName)
+        {
+            IConfig config;
+
+            if (File.Exists(configFile))
+            {
+                IConfigSource configsource = new IniConfigSource(configFile);
+                config = configsource.Configs[configName];
+            }
+            else
+                config = null;
+
+            return config;
+        }
+
+        public static IConfigSource LoadInitialConfig(string url)
+        {
+            IConfigSource source = new XmlConfigSource();
+            m_log.InfoFormat("[SERVER UTILS]: {0} is a http:// URI, fetching ...", url);
+
+            // The ini file path is a http URI
+            // Try to read it
+            try
+            {
+                XmlReader r = XmlReader.Create(url);
+                IConfigSource cs = new XmlConfigSource(r);
+                source.Merge(cs);
+            }
+            catch (Exception e)
+            {
+                m_log.FatalFormat("[SERVER UTILS]: Exception reading config from URI {0}\n" + e.ToString(), url);
+                Environment.Exit(1);
+            }
+
+            return source;
+        }
     }
 }