Merge branch 'master' of ssh://MyConnection/var/git/opensim

1 files changed, 133 insertions, 0 deletions

diff --git a/OpenSim/Grid/InventoryServer/AuthedSessionCache.cs b/OpenSim/Grid/InventoryServer/AuthedSessionCache.cs
new file mode 100644
index 0000000..dadf34a
--- /dev/null
+++ b/OpenSim/Grid/InventoryServer/AuthedSessionCache.cs
@@ -0,0 +1,133 @@
+/*
+ * 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;
+
+namespace OpenSim.Grid.InventoryServer
+{
+    public class AuthedSessionCache
+    {
+        public class CacheData
+        {
+            private static readonly DateTime UNIX_EPOCH = new DateTime(1970, 1, 1);
+            private string m_session_id;
+            private string m_agent_id;
+            private int m_expire;
+
+            private int get_current_unix_time()
+            {
+                return (int)(DateTime.UtcNow - UNIX_EPOCH).TotalSeconds;
+            }
+
+            public CacheData(string sid, string aid)
+            {
+                m_session_id = sid;
+                m_agent_id = aid;
+                m_expire = get_current_unix_time() + DEFAULT_LIFETIME;
+            }
+
+            public CacheData(string sid, string aid, int time_now)
+            {
+                m_session_id = sid;
+                m_agent_id = aid;
+                m_expire = time_now + DEFAULT_LIFETIME;
+            }
+
+            public string SessionID
+            {
+                get { return m_session_id; }
+                set { m_session_id = value; }
+            }
+
+            public string AgentID
+            {
+                get { return m_agent_id; }
+                set { m_agent_id = value; }
+            }
+
+            public bool isExpired
+            {
+                get { return m_expire < get_current_unix_time(); }
+            }
+
+            public void Renew()
+            {
+                m_expire = get_current_unix_time() + DEFAULT_LIFETIME;
+            }
+        }
+
+        private static readonly int DEFAULT_LIFETIME = 30;
+        private Dictionary<string, CacheData> m_authed_sessions = new Dictionary<string,CacheData>();
+        // private int m_session_lifetime = DEFAULT_LIFETIME;
+
+        public AuthedSessionCache()
+        {
+            // m_session_lifetime = DEFAULT_LIFETIME;
+        }
+
+        public AuthedSessionCache(int timeout)
+        {
+            // m_session_lifetime = timeout;
+        }
+
+        public CacheData getCachedSession(string session_id, string agent_id)
+        {
+            CacheData ret = null;
+            lock (m_authed_sessions)
+            {
+                if (m_authed_sessions.ContainsKey(session_id))
+                {
+                    CacheData cached_session = m_authed_sessions[session_id];
+                    if (!cached_session.isExpired && cached_session.AgentID == agent_id)
+                    {
+                        ret = m_authed_sessions[session_id];
+                        // auto renew
+                        m_authed_sessions[session_id].Renew();
+                    }
+                }
+            }
+            return ret;
+        }
+
+        public void Add(string session_id, string agent_id)
+        {
+            CacheData data = new CacheData(session_id, agent_id);
+            lock (m_authed_sessions)
+            {
+                if (m_authed_sessions.ContainsKey(session_id))
+                {
+                    m_authed_sessions[session_id] = data;
+                }
+                else
+                {
+                    m_authed_sessions.Add(session_id, data);
+                }
+            }
+        }
+    }
+}