1 files changed, 249 insertions, 0 deletions

diff --git a/OpenSim/Server/Handlers/Map/MapRemoveServerConnector.cs b/OpenSim/Server/Handlers/Map/MapRemoveServerConnector.cs
new file mode 100644
index 0000000..80e3535
--- /dev/null
+++ b/OpenSim/Server/Handlers/Map/MapRemoveServerConnector.cs
@@ -0,0 +1,249 @@
+/*
+ * 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.Reflection;
+using System.Xml;
+
+using Nini.Config;
+using log4net;
+using OpenMetaverse;
+
+using OpenSim.Framework;
+using OpenSim.Server.Base;
+using OpenSim.Services.Interfaces;
+using OpenSim.Framework.Servers.HttpServer;
+using OpenSim.Server.Handlers.Base;
+
+using GridRegion = OpenSim.Services.Interfaces.GridRegion;
+
+namespace OpenSim.Server.Handlers.MapImage
+{
+    public class MapRemoveServiceConnector : ServiceConnector
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        private IMapImageService m_MapService;
+        private IGridService m_GridService;
+        private string m_ConfigName = "MapImageService";
+
+        public MapRemoveServiceConnector(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 mapService = serverConfig.GetString("LocalServiceModule",
+                    String.Empty);
+
+            if (mapService == String.Empty)
+                throw new Exception("No LocalServiceModule in config file");
+
+            Object[] args = new Object[] { config };
+            m_MapService = ServerUtils.LoadPlugin<IMapImageService>(mapService, args);
+
+            string gridService = serverConfig.GetString("GridService", String.Empty);
+            if (gridService != string.Empty)
+                m_GridService = ServerUtils.LoadPlugin<IGridService>(gridService, args);
+
+            if (m_GridService != null)
+                m_log.InfoFormat("[MAP IMAGE HANDLER]: GridService check is ON");
+            else
+                m_log.InfoFormat("[MAP IMAGE HANDLER]: GridService check is OFF");
+
+            bool proxy = serverConfig.GetBoolean("HasProxy", false);
+            server.AddStreamHandler(new MapServerRemoveHandler(m_MapService, m_GridService, proxy));
+
+        }
+    }
+
+    class MapServerRemoveHandler : BaseStreamHandler
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+        private IMapImageService m_MapService;
+        private IGridService m_GridService;
+        bool m_Proxy;
+
+        public MapServerRemoveHandler(IMapImageService service, IGridService grid, bool proxy) :
+            base("POST", "/removemap")
+        {
+            m_MapService = service;
+            m_GridService = grid;
+            m_Proxy = proxy;
+        }
+
+        public override byte[] Handle(string path, Stream requestData, IOSHttpRequest httpRequest, IOSHttpResponse httpResponse)
+        {
+//            m_log.DebugFormat("[MAP SERVICE IMAGE HANDLER]: Received {0}", path);
+            StreamReader sr = new StreamReader(requestData);
+            string body = sr.ReadToEnd();
+            sr.Close();
+            body = body.Trim();
+
+            try
+            {
+                Dictionary<string, object> request = ServerUtils.ParseQueryString(body);
+
+                if (!request.ContainsKey("X") || !request.ContainsKey("Y"))
+                {
+                    httpResponse.StatusCode = (int)OSHttpStatusCode.ClientErrorBadRequest;
+                    return FailureResult("Bad request.");
+                }
+                int x = 0, y = 0;
+                Int32.TryParse(request["X"].ToString(), out x);
+                Int32.TryParse(request["Y"].ToString(), out y);
+
+                m_log.DebugFormat("[MAP REMOVE SERVER CONNECTOR]: Received position data for region at {0}-{1}", x, y);
+
+                if (m_GridService != null)
+                {
+                    System.Net.IPAddress ipAddr = GetCallerIP(httpRequest);
+                    GridRegion r = m_GridService.GetRegionByPosition(UUID.Zero, x * (int)Constants.RegionSize, y * (int)Constants.RegionSize);
+                    if (r != null)
+                    {
+                        if (r.ExternalEndPoint.Address.ToString() != ipAddr.ToString())
+                        {
+                            m_log.WarnFormat("[MAP IMAGE HANDLER]: IP address {0} may be trying to impersonate region in IP {1}", ipAddr, r.ExternalEndPoint.Address);
+                            return FailureResult("IP address of caller does not match IP address of registered region");
+                        }
+
+                    }
+                    else
+                    {
+                        m_log.WarnFormat("[MAP IMAGE HANDLER]: IP address {0} may be rogue. Region not found at coordinates {1}-{2}", 
+                            ipAddr, x, y);
+                        return FailureResult("Region not found at given coordinates");
+                    }
+                }
+
+                string reason = string.Empty;
+                bool result = m_MapService.RemoveMapTile(x, y, out reason);
+
+                if (result)
+                    return SuccessResult();
+                else
+                    return FailureResult(reason);
+
+            }
+            catch (Exception e)
+            {
+                m_log.ErrorFormat("[MAP SERVICE IMAGE HANDLER]: Exception {0} {1}", e.Message, e.StackTrace);
+            }
+
+            return FailureResult("Unexpected server error");
+        }
+
+        private byte[] SuccessResult()
+        {
+            XmlDocument doc = new XmlDocument();
+
+            XmlNode xmlnode = doc.CreateNode(XmlNodeType.XmlDeclaration,
+                    "", "");
+
+            doc.AppendChild(xmlnode);
+
+            XmlElement rootElement = doc.CreateElement("", "ServerResponse",
+                    "");
+
+            doc.AppendChild(rootElement);
+
+            XmlElement result = doc.CreateElement("", "Result", "");
+            result.AppendChild(doc.CreateTextNode("Success"));
+
+            rootElement.AppendChild(result);
+
+            return DocToBytes(doc);
+        }
+
+        private byte[] FailureResult(string msg)
+        {
+            XmlDocument doc = new XmlDocument();
+
+            XmlNode xmlnode = doc.CreateNode(XmlNodeType.XmlDeclaration,
+                    "", "");
+
+            doc.AppendChild(xmlnode);
+
+            XmlElement rootElement = doc.CreateElement("", "ServerResponse",
+                    "");
+
+            doc.AppendChild(rootElement);
+
+            XmlElement result = doc.CreateElement("", "Result", "");
+            result.AppendChild(doc.CreateTextNode("Failure"));
+
+            rootElement.AppendChild(result);
+
+            XmlElement message = doc.CreateElement("", "Message", "");
+            message.AppendChild(doc.CreateTextNode(msg));
+
+            rootElement.AppendChild(message);
+
+            return DocToBytes(doc);
+        }
+
+        private byte[] DocToBytes(XmlDocument doc)
+        {
+            MemoryStream ms = new MemoryStream();
+            XmlTextWriter xw = new XmlTextWriter(ms, null);
+            xw.Formatting = Formatting.Indented;
+            doc.WriteTo(xw);
+            xw.Flush();
+
+            return ms.ToArray();
+        }
+
+        private System.Net.IPAddress GetCallerIP(IOSHttpRequest request)
+        {
+            if (!m_Proxy)
+                return request.RemoteIPEndPoint.Address;
+
+            // We're behind a proxy
+            string xff = "X-Forwarded-For";
+            string xffValue = request.Headers[xff.ToLower()];
+            if (xffValue == null || (xffValue != null && xffValue == string.Empty))
+                xffValue = request.Headers[xff];
+
+            if (xffValue == null || (xffValue != null && xffValue == string.Empty))
+            {
+                m_log.WarnFormat("[MAP IMAGE HANDLER]: No XFF header");
+                return request.RemoteIPEndPoint.Address;
+            }
+
+            System.Net.IPEndPoint ep = Util.GetClientIPFromXFF(xffValue);
+            if (ep != null)
+                return ep.Address;
+
+            // Oops
+            return request.RemoteIPEndPoint.Address;
+        }
+
+    }
+}