First version of the Hypergrid HELO service that will enable different backends to interoperate.

2 files changed, 160 insertions, 0 deletions

diff --git a/OpenSim/Server/Handlers/Hypergrid/HeloServerConnector.cs b/OpenSim/Server/Handlers/Hypergrid/HeloServerConnector.cs
new file mode 100644
index 0000000..3b25a52
--- /dev/null
+++ b/OpenSim/Server/Handlers/Hypergrid/HeloServerConnector.cs
@@ -0,0 +1,85 @@
+/*
+ * 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 OpenSimulator 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.Generic;
+using System.IO;
+using System.Net;
+using System.Reflection;
+using Nini.Config;
+using log4net;
+using OpenSim.Server.Base;
+using OpenSim.Services.Interfaces;
+using OpenSim.Framework.Servers.HttpServer;
+using OpenSim.Server.Handlers.Base;
+
+namespace OpenSim.Server.Handlers.Hypergrid
+{
+    public class HeloServiceConnector : ServiceConnector
+    {
+        private string m_ConfigName = "HeloService";
+
+        public HeloServiceConnector(IConfigSource config, IHttpServer server, string configName) :
+                base(config, server, configName)
+        {
+            IConfig serverConfig = config.Configs[m_ConfigName];
+            if (serverConfig == null)
+                throw new Exception(String.Format("No section {0} in config file", m_ConfigName));
+
+            string handlers = serverConfig.GetString("Handlers", "opensim-robust");
+            server.AddStreamHandler(new HeloServerGetHandler(handlers));
+        }
+    }
+
+    public class HeloServerGetHandler : BaseStreamHandler
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        private string m_HandlersType;
+
+        public HeloServerGetHandler(string handlersType) :
+            base("GET", "/helo")
+        {
+            m_HandlersType = handlersType;
+        }
+
+        public override byte[] Handle(string path, Stream requestData,
+                OSHttpRequest httpRequest, OSHttpResponse httpResponse)
+        {
+            return OKResponse(httpResponse);
+        }
+
+        private byte[] OKResponse(OSHttpResponse httpResponse)
+        {
+            httpResponse.AddHeader("X-Handlers-Provided", m_HandlersType);
+            httpResponse.StatusCode = (int)HttpStatusCode.OK;
+            httpResponse.StatusDescription = "OK";
+            return new byte[0];
+        }
+
+    }
+}
diff --git a/OpenSim/Services/Connectors/Hypergrid/HeloServiceConnector.cs b/OpenSim/Services/Connectors/Hypergrid/HeloServiceConnector.cs
new file mode 100644
index 0000000..7b166c1
--- /dev/null
+++ b/OpenSim/Services/Connectors/Hypergrid/HeloServiceConnector.cs
@@ -0,0 +1,75 @@
+/*
+ * 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 OpenSimulator 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 log4net;
+using System;
+using System.Net;
+using System.Reflection;
+using Nini.Config;
+
+namespace OpenSim.Services.Connectors
+{
+    public class HeloServicesConnector 
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        private string m_ServerURI = String.Empty;
+
+        public HeloServicesConnector()
+        {
+        }
+
+        public HeloServicesConnector(string serverURI)
+        {
+            m_ServerURI = serverURI.TrimEnd('/');
+        }
+
+
+        public virtual string Helo()
+        {
+            HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(m_ServerURI + "/helo");
+
+            try
+            {
+                WebResponse response = req.GetResponse();
+                if (response.Headers.Get("X-Handlers-Provided") == null) // just in case this ever returns a null
+                    return string.Empty;
+                return response.Headers.Get("X-Handlers-Provided");
+            }
+            catch (Exception e)
+            {
+                m_log.DebugFormat("[HELO SERVICE]: Unable to perform HELO request to {0}: {1}", m_ServerURI, e.Message);
+            }
+
+            // fail
+            return string.Empty;
+        }
+
+    }
+}