Region access control! Region operators can now specify things like DisallowForeigners (means what it says) and DisallowResidents (means that only admins and managers can get into the region). This puts the never-completed AuthorizationService to good use. Note that I didn't implement a grid-wide Authorization service; this service implementation is done entirely locally on the simulator. This can be changed as usual by pluging in a different AuthorizationServicesConnector.

1 files changed, 124 insertions, 0 deletions

diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Authorization/AuthorizationService.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Authorization/AuthorizationService.cs
new file mode 100644
index 0000000..f0d21e6
--- /dev/null
+++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Authorization/AuthorizationService.cs
@@ -0,0 +1,124 @@
+/*
+ * 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.Linq;
+using System.Reflection;
+using Nini.Config;
+using log4net;
+using OpenSim.Framework;
+using OpenSim.Services.Interfaces;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using OpenMetaverse;
+
+using GridRegion = OpenSim.Services.Interfaces.GridRegion;
+
+namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Authorization
+{
+    public class AuthorizationService : IAuthorizationService
+    {
+        private enum AccessFlags
+        {
+            None = 0,               /* No restrictions */
+            DisallowResidents = 1,  /* Only gods and managers*/
+            DisallowForeigners = 2, /* Only local people */
+        }
+
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        private IUserManagement m_UserManagement;
+        private IGridService m_GridService;
+
+        private Scene m_Scene;
+        AccessFlags m_accessValue = AccessFlags.None;
+
+
+        public AuthorizationService(IConfig config, Scene scene)
+        {
+            m_Scene = scene;
+            m_UserManagement = scene.RequestModuleInterface<IUserManagement>();
+            m_GridService = scene.GridService;
+
+            if (config != null)
+            {
+                string accessStr = config.GetString("Region_" + scene.RegionInfo.RegionName.Replace(' ', '_'), String.Empty);
+                if (accessStr != string.Empty)
+                {
+                    try
+                    {
+                        m_accessValue = (AccessFlags)Enum.Parse(typeof(AccessFlags), accessStr);
+                    }
+                    catch (ArgumentException)
+                    {
+                        m_log.WarnFormat("[AuthorizationService]: {0} is not a valid access flag", accessStr);
+                    }
+                }
+                m_log.DebugFormat("[AuthorizationService]: Region {0} access restrictions: {1}", m_Scene.RegionInfo.RegionName, m_accessValue);
+            }
+
+        }
+
+        public bool IsAuthorizedForRegion(
+            string user, string firstName, string lastName, string regionID, out string message)
+        {
+            message = "authorized";
+
+            // This should not happen
+            if (m_Scene.RegionInfo.RegionID.ToString() != regionID)
+            {
+                m_log.WarnFormat("[AuthorizationService]: Service for region {0} received request to authorize for region {1}",
+                    m_Scene.RegionInfo.RegionID, regionID);
+                return true;
+            }
+
+            if (m_accessValue == AccessFlags.None)
+                return true;
+
+            UUID userID = new UUID(user);
+            bool authorized = true;
+            if ((m_accessValue & AccessFlags.DisallowForeigners) == AccessFlags.DisallowForeigners)
+            {
+                authorized = m_UserManagement.IsLocalGridUser(userID);
+                if (!authorized)
+                    message = "no foreigner users allowed in this region";
+            }
+            if (authorized && (m_accessValue & AccessFlags.DisallowResidents) == AccessFlags.DisallowResidents)
+            {
+                authorized = m_Scene.Permissions.IsGod(userID) | m_Scene.Permissions.IsAdministrator(userID);
+                if (!authorized)
+                    message = "only Admins and Managers allowed in this region";
+            }
+
+            return authorized;
+        }
+
+    }
+}
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