This should have a strong effect on the Unknown User issue mantis #6625

OpenSim/Data/IGridUserData.cs

@@ -50,6 +50,7 @@ namespace OpenSim.Data
     public interface IGridUserData 
     {
         GridUserData Get(string userID);
+        GridUserData[] GetAll(string query);
         bool Store(GridUserData data);
     }
 }

OpenSim/Data/MSSQL/MSSQLGridUserData.cs

@@ -50,7 +50,7 @@ namespace OpenSim.Data.MSSQL
         {
         }
 
-        public GridUserData Get(string userID)
+        public new GridUserData Get(string userID)
         {
             GridUserData[] ret = Get("UserID", userID);
 
@@ -60,5 +60,10 @@ namespace OpenSim.Data.MSSQL
             return ret[0];
         }
 
+        public GridUserData[] GetAll(string userID)
+        {
+            return base.Get("UserID LIKE {0}%", userID);
+        }
+
     }
 }

OpenSim/Data/MySQL/MySQLGridUserData.cs

@@ -46,7 +46,7 @@ namespace OpenSim.Data.MySQL
 
         public MySQLGridUserData(string connectionString, string realm) : base(connectionString, realm, "GridUserStore") {}
 
-        public GridUserData Get(string userID)
+        public new GridUserData Get(string userID)
         {
             GridUserData[] ret = Get("UserID", userID);
 
@@ -56,6 +56,9 @@ namespace OpenSim.Data.MySQL
             return ret[0];
         }
 
-
+        public GridUserData[] GetAll(string userID)
+        {
+            return base.Get("UserID LIKE {0}%", userID);
+        }
     }
 }

OpenSim/Data/SQLite/SQLiteGridUserData.cs

@@ -56,6 +56,10 @@ namespace OpenSim.Data.SQLite
             return ret[0];
         }
 
+        public GridUserData[] GetAll(string userID)
+        {
+            return base.Get("UserID LIKE {0}%", userID);
+        }
 
     }
 }

OpenSim/Region/CoreModules/Framework/UserManagement/UserManagementModule.cs

@@ -319,8 +319,25 @@ namespace OpenSim.Region.CoreModules.Framework.UserManagement
             }
             else
             {
+                // Let's try the GridUser service
+                GridUserInfo uInfo = m_Scenes[0].GridUserService.GetGridUserInfo(uuid.ToString());
+                if (uInfo != null)
+                {
+                    string url, first, last, tmp;
+                    UUID u;
+                    if (Util.ParseUniversalUserIdentifier(uInfo.UserID, out u, out url, out first, out last, out tmp))
+                    {
+                        AddUser(uuid, first, last, url);
+
+                        names[0] = m_UserCache[uuid].FirstName;
+                        names[1] = m_UserCache[uuid].LastName;
+
+                        return true;
+                    }
+                }
+
                 names[0] = "Unknown";
-                names[1] = "UserUMMTGUN4";
+                names[1] = "UserUMMTGUN5";
 
                 return false;
             }
@@ -474,7 +491,6 @@ namespace OpenSim.Region.CoreModules.Framework.UserManagement
             //m_log.DebugFormat("[USER MANAGEMENT MODULE]: Adding user with id {0}, creatorData {1}", id, creatorData);
 
             UserData oldUser;
-            //lock the whole block - prevent concurrent update
             lock (m_UserCache)
                 m_UserCache.TryGetValue(id, out oldUser);
 

OpenSim/Services/UserAccountService/GridUserService.cs

@@ -51,7 +51,22 @@ namespace OpenSim.Services.UserAccountService
 
         public virtual GridUserInfo GetGridUserInfo(string userID)
         {
-            GridUserData d = m_Database.Get(userID);
+            GridUserData d = null;
+            if (userID.Length > 36) // it's a UUI
+                d = m_Database.Get(userID);
+            else // it's a UUID
+            {
+                GridUserData[] ds = m_Database.GetAll(userID);
+                if (ds == null)
+                    return null;
+                if (ds.Length > 0)
+                {
+                    d = ds[0];
+                    foreach (GridUserData dd in ds)
+                        if (dd.UserID.Length > d.UserID.Length) // find the longest
+                            d = dd;
+                }
+            }
 
             if (d == null)
                 return null;