Add experimental "show grid users online" console command to show grid users online from a standalone/robust instance.

This is not guaranteed to be accurate since users may be left "online" in certain situations.
For example, if a simulator crashes and they never login/logout again.
To counter this somewhat, only users continuously online for less than 5 days are shown.

2 files changed, 43 insertions, 4 deletions

diff --git a/OpenSim/Framework/Util.cs b/OpenSim/Framework/Util.cs
index f0e5bc1..52f5432 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -130,7 +130,7 @@ namespace OpenSim.Framework
         private static SmartThreadPool m_ThreadPool;
 
         // Unix-epoch starts at January 1st 1970, 00:00:00 UTC. And all our times in the server are (or at least should be) in UTC.
-        private static readonly DateTime unixEpoch =
+        public static readonly DateTime UnixEpoch =
             DateTime.ParseExact("1970-01-01 00:00:00 +0", "yyyy-MM-dd hh:mm:ss z", DateTimeFormatInfo.InvariantInfo).ToUniversalTime();
 
         private static readonly string rawUUIDPattern
@@ -521,19 +521,19 @@ namespace OpenSim.Framework
 
         public static int ToUnixTime(DateTime stamp)
         {
-            TimeSpan t = stamp.ToUniversalTime() - unixEpoch;
+            TimeSpan t = stamp.ToUniversalTime() - UnixEpoch;
             return (int) t.TotalSeconds;
         }
 
         public static DateTime ToDateTime(ulong seconds)
         {
-            DateTime epoch = unixEpoch;
+            DateTime epoch = UnixEpoch;
             return epoch.AddSeconds(seconds);
         }
 
         public static DateTime ToDateTime(int seconds)
         {
-            DateTime epoch = unixEpoch;
+            DateTime epoch = UnixEpoch;
             return epoch.AddSeconds(seconds);
         }
 
diff --git a/OpenSim/Services/UserAccountService/GridUserService.cs b/OpenSim/Services/UserAccountService/GridUserService.cs
index b1cdd45..f9cfa12 100644
--- a/OpenSim/Services/UserAccountService/GridUserService.cs
+++ b/OpenSim/Services/UserAccountService/GridUserService.cs
@@ -47,6 +47,45 @@ namespace OpenSim.Services.UserAccountService
         public GridUserService(IConfigSource config) : base(config) 
         {
             m_log.Debug("[GRID USER SERVICE]: Starting user grid service");
+
+            MainConsole.Instance.Commands.AddCommand(
+                "Users", false,
+                "show grid users online",
+                "show grid users online",
+                "Show number of grid users registered as online.", 
+                "This number may not be accurate as a region may crash or not be cleanly shutdown and leave grid users shown as online\n."
+                + "For this reason, users online for more than 5 days are not currently counted",
+                HandleShowGridUsersOnline);
+        }
+
+        protected void HandleShowGridUsersOnline(string module, string[] cmdparams)
+        {
+//            if (cmdparams.Length != 4)
+//            {
+//                MainConsole.Instance.Output("Usage: show grid users online");
+//                return;
+//            }
+
+//            int onlineCount;
+            int onlineRecentlyCount = 0;
+
+            DateTime now = DateTime.UtcNow;
+
+            foreach (GridUserData gu in m_Database.GetAll(""))
+            {
+                if (bool.Parse(gu.Data["Online"]))
+                {
+//                    onlineCount++;
+
+                    int unixLoginTime = int.Parse(gu.Data["Login"]);
+                    DateTime loginDateTime = Util.UnixEpoch.AddSeconds(unixLoginTime);
+
+                    if ((loginDateTime - now).Days < 5)
+                        onlineRecentlyCount++;
+                }
+            }
+
+            MainConsole.Instance.OutputFormat("Users online within last 5 days: {0}", onlineRecentlyCount);
         }
 
         public virtual GridUserInfo GetGridUserInfo(string userID)