Implement the "delete" path for assets. Adds a new option to allow remote asset deletion in robust handler.

OpenSim/Data/AssetDataBase.cs

@@ -48,5 +48,6 @@ namespace OpenSim.Data
         public abstract void Initialise(string connect);
         public abstract void Initialise();
         public abstract void Dispose();
+        public abstract bool Delete(string id);
     }
 }

OpenSim/Data/IAssetData.cs

@@ -38,6 +38,7 @@ namespace OpenSim.Data
         bool ExistsAsset(UUID uuid);
         List<AssetMetadata> FetchAssetMetadataSet(int start, int count);
         void Initialise(string connect);
+        bool Delete(string id);
     }
 
     public class AssetDataInitialiser : PluginInitialiserBase

OpenSim/Data/MSSQL/MSSQLAssetData.cs

@@ -322,6 +322,10 @@ namespace OpenSim.Data.MSSQL
             return retList;
         }
 
+        public override bool Delete(string id)
+        {
+            return false;
+        }
         #endregion
     }
 }

OpenSim/Data/MySQL/MySQLAssetData.cs

@@ -338,6 +338,24 @@ namespace OpenSim.Data.MySQL
             return retList;
         }
 
+        public override bool Delete(string id)
+        {
+            lock (m_dbLock)
+            {
+                using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
+                {
+                    dbcon.Open();
+                    MySqlCommand cmd = new MySqlCommand("delete from assets where id=?id");
+                    cmd.Parameters.AddWithValue("?id", id);
+                    cmd.ExecuteNonQuery();
+
+                    cmd.Dispose();
+                }
+            }
+
+            return true;
+        }
+
         #endregion
     }
 }

OpenSim/Data/SQLite/SQLiteAssetData.cs

@@ -338,6 +338,11 @@ namespace OpenSim.Data.SQLite
             get { return "SQLite Asset storage engine"; }
         }
 
+        public override bool Delete(string id)
+        {
+            return false;
+        }
+
         #endregion
     }
 }

OpenSim/Data/SQLiteLegacy/SQLiteAssetData.cs

@@ -338,6 +338,10 @@ namespace OpenSim.Data.SQLiteLegacy
             get { return "SQLite Asset storage engine"; }
         }
 
+        public override bool Delete(string id)
+        {
+            return false;
+        }
         #endregion
     }
-}
+}