1 files changed, 363 insertions, 0 deletions

diff --git a/OpenSim/Framework/AssetBase.cs b/OpenSim/Framework/AssetBase.cs
new file mode 100644
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--- /dev/null
+++ b/OpenSim/Framework/AssetBase.cs
@@ -0,0 +1,363 @@
+/*
+ * 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.Xml.Serialization;
+using System.Reflection;
+using log4net;
+using OpenMetaverse;
+
+namespace OpenSim.Framework
+{
+    [Flags]
+    public enum AssetFlags : int
+    {
+        Normal = 0,         // Immutable asset
+        Maptile = 1,        // What it says
+        Rewritable = 2,     // Content can be rewritten
+        Collectable = 4     // Can be GC'ed after some time
+    }
+
+    /// <summary>
+    /// Asset class.   All Assets are reference by this class or a class derived from this class
+    /// </summary>
+    [Serializable]
+    public class AssetBase
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        public static readonly int MAX_ASSET_NAME = 64;
+        public static readonly int MAX_ASSET_DESC = 64;
+
+        /// <summary>
+        /// Data of the Asset
+        /// </summary>
+        private byte[] m_data;
+
+        /// <summary>
+        /// Meta Data of the Asset
+        /// </summary>
+        private AssetMetadata m_metadata;
+
+        // This is needed for .NET serialization!!!
+        // Do NOT "Optimize" away!
+        public AssetBase()
+        {
+            m_metadata = new AssetMetadata();
+            m_metadata.FullID = UUID.Zero;
+            m_metadata.ID = UUID.Zero.ToString();
+            m_metadata.Type = (sbyte)AssetType.Unknown;
+            m_metadata.CreatorID = String.Empty;
+        }
+
+        public AssetBase(UUID assetID, string name, sbyte assetType, string creatorID)
+        {
+            if (assetType == (sbyte)AssetType.Unknown)
+            {
+                System.Diagnostics.StackTrace trace = new System.Diagnostics.StackTrace(true);
+                m_log.ErrorFormat("[ASSETBASE]: Creating asset '{0}' ({1}) with an unknown asset type\n{2}",
+                    name, assetID, trace.ToString());
+            }
+
+            m_metadata = new AssetMetadata();
+            m_metadata.FullID = assetID;
+            m_metadata.Name = name;
+            m_metadata.Type = assetType;
+            m_metadata.CreatorID = creatorID;
+        }
+
+        public AssetBase(string assetID, string name, sbyte assetType, string creatorID)
+        {
+            if (assetType == (sbyte)AssetType.Unknown)
+            {
+                System.Diagnostics.StackTrace trace = new System.Diagnostics.StackTrace(true);
+                m_log.ErrorFormat("[ASSETBASE]: Creating asset '{0}' ({1}) with an unknown asset type\n{2}",
+                    name, assetID, trace.ToString());
+            }
+
+            m_metadata = new AssetMetadata();
+            m_metadata.ID = assetID;
+            m_metadata.Name = name;
+            m_metadata.Type = assetType;
+            m_metadata.CreatorID = creatorID;
+        }
+
+        public bool ContainsReferences
+        {
+            get
+            {
+                return 
+                    IsTextualAsset && (
+                    Type != (sbyte)AssetType.Notecard
+                    && Type != (sbyte)AssetType.CallingCard
+                    && Type != (sbyte)AssetType.LSLText
+                    && Type != (sbyte)AssetType.Landmark);
+            }
+        }
+
+        public bool IsTextualAsset
+        {
+            get
+            {
+                return !IsBinaryAsset;
+            }
+
+        }
+
+        /// <summary>
+        /// Checks if this asset is a binary or text asset
+        /// </summary>
+        public bool IsBinaryAsset
+        {
+            get
+            {
+                return 
+                    (Type == (sbyte)AssetType.Animation ||
+                     Type == (sbyte)AssetType.Gesture ||
+                     Type == (sbyte)AssetType.Simstate ||
+                     Type == (sbyte)AssetType.Unknown ||
+                     Type == (sbyte)AssetType.Object ||
+                     Type == (sbyte)AssetType.Sound ||
+                     Type == (sbyte)AssetType.SoundWAV ||
+                     Type == (sbyte)AssetType.Texture ||
+                     Type == (sbyte)AssetType.TextureTGA ||
+                     Type == (sbyte)AssetType.Folder ||
+                     Type == (sbyte)AssetType.ImageJPEG ||
+                     Type == (sbyte)AssetType.ImageTGA ||
+                     Type == (sbyte)AssetType.LSLBytecode);
+            }
+        }
+
+        public virtual byte[] Data
+        {
+            get { return m_data; }
+            set { m_data = value; }
+        }
+
+        /// <summary>
+        /// Asset UUID
+        /// </summary>
+        public UUID FullID
+        {
+            get { return m_metadata.FullID; }
+            set { m_metadata.FullID = value; }
+        }
+
+        /// <summary>
+        /// Asset MetaData ID (transferring from UUID to string ID)
+        /// </summary>
+        public string ID
+        {
+            get { return m_metadata.ID; }
+            set { m_metadata.ID = value; }
+        }
+
+        public string Name
+        {
+            get { return m_metadata.Name; }
+            set { m_metadata.Name = value; }
+        }
+
+        public string Description
+        {
+            get { return m_metadata.Description; }
+            set { m_metadata.Description = value; }
+        }
+
+        /// <summary>
+        /// (sbyte) AssetType enum
+        /// </summary>
+        public sbyte Type
+        {
+            get { return m_metadata.Type; }
+            set { m_metadata.Type = value; }
+        }
+
+        /// <summary>
+        /// Is this a region only asset, or does this exist on the asset server also
+        /// </summary>
+        public bool Local
+        {
+            get { return m_metadata.Local; }
+            set { m_metadata.Local = value; }
+        }
+
+        /// <summary>
+        /// Is this asset going to be saved to the asset database?
+        /// </summary>
+        public bool Temporary
+        {
+            get { return m_metadata.Temporary; }
+            set { m_metadata.Temporary = value; }
+        }
+
+        public string CreatorID
+        {
+            get { return m_metadata.CreatorID; }
+            set { m_metadata.CreatorID = value; }
+        }
+
+        public AssetFlags Flags
+        {
+            get { return m_metadata.Flags; }
+            set { m_metadata.Flags = value; }
+        }
+
+        [XmlIgnore]
+        public AssetMetadata Metadata
+        {
+            get { return m_metadata; }
+            set { m_metadata = value; }
+        }
+
+        public override string ToString()
+        {
+            return FullID.ToString();
+        }
+    }
+
+    [Serializable]
+    public class AssetMetadata
+    {
+        private UUID m_fullid;
+        private string m_id;
+        private string m_name = String.Empty;
+        private string m_description = String.Empty;
+        private DateTime m_creation_date;
+        private sbyte m_type = (sbyte)AssetType.Unknown;
+        private string m_content_type;
+        private byte[] m_sha1;
+        private bool m_local;
+        private bool m_temporary;
+        private string m_creatorid;
+        private AssetFlags m_flags;
+
+        public UUID FullID
+        {
+            get { return m_fullid; }
+            set { m_fullid = value; m_id = m_fullid.ToString(); }
+        }
+
+        public string ID
+        {
+            //get { return m_fullid.ToString(); }
+            //set { m_fullid = new UUID(value); }
+            get
+            {
+                if (String.IsNullOrEmpty(m_id))
+                    m_id = m_fullid.ToString();
+
+                return m_id;
+            }
+            
+            set
+            {
+                UUID uuid = UUID.Zero;
+                if (UUID.TryParse(value, out uuid))
+                {
+                    m_fullid = uuid;
+                    m_id = m_fullid.ToString();
+                }
+                else
+                    m_id = value;
+            }
+        }
+
+        public string Name
+        {
+            get { return m_name; }
+            set { m_name = value; }
+        }
+
+        public string Description
+        {
+            get { return m_description; }
+            set { m_description = value; }
+        }
+
+        public DateTime CreationDate
+        {
+            get { return m_creation_date; }
+            set { m_creation_date = value; }
+        }
+
+        public sbyte Type
+        {
+            get { return m_type; }
+            set { m_type = value; }
+        }
+
+        public string ContentType
+        {
+            get
+            {
+                if (!String.IsNullOrEmpty(m_content_type))
+                    return m_content_type;
+                else
+                    return SLUtil.SLAssetTypeToContentType(m_type);
+            }
+            set
+            {
+                m_content_type = value;
+
+                sbyte type = (sbyte)SLUtil.ContentTypeToSLAssetType(value);
+                if (type != -1)
+                    m_type = type;
+            }
+        }
+
+        public byte[] SHA1
+        {
+            get { return m_sha1; }
+            set { m_sha1 = value; }
+        }
+
+        public bool Local
+        {
+            get { return m_local; }
+            set { m_local = value; }
+        }
+
+        public bool Temporary
+        {
+            get { return m_temporary; }
+            set { m_temporary = value; }
+        }
+
+        public string CreatorID
+        {
+            get { return m_creatorid; }
+            set { m_creatorid = value; }
+        }
+
+        public AssetFlags Flags
+        {
+            get { return m_flags; }
+            set { m_flags = value; }
+        }
+    }
+}