2 files changed, 48 insertions, 15 deletions

diff --git a/OpenSim/Region/DataSnapshot/ObjectSnapshot.cs b/OpenSim/Region/DataSnapshot/ObjectSnapshot.cs
index c489972..3c39f9e 100644
--- a/OpenSim/Region/DataSnapshot/ObjectSnapshot.cs
+++ b/OpenSim/Region/DataSnapshot/ObjectSnapshot.cs
@@ -142,9 +142,18 @@ namespace OpenSim.Region.DataSnapshot.Providers
                             node.InnerText = m_scene.RegionInfo.RegionSettings.RegionUUID.ToString();
                             xmlobject.AppendChild(node);
 
-                            node = nodeFactory.CreateNode(XmlNodeType.Element, "parceluuid", "");
-                            node.InnerText = land.LandData.GlobalID.ToString();
-                            xmlobject.AppendChild(node);
+                            if (land != null && land.LandData != null)
+                            {
+                                node = nodeFactory.CreateNode(XmlNodeType.Element, "parceluuid", "");
+                                node.InnerText = land.LandData.GlobalID.ToString();
+                                xmlobject.AppendChild(node);
+                            }
+                            else
+                            {
+                                // Something is wrong with this object. Let's not list it.
+                                m_log.WarnFormat("[DATASNAPSHOT]: Bad data for object {0} ({1}) in region {2}", obj.Name, obj.UUID, m_scene.RegionInfo.RegionName);
+                                continue;
+                            }
 
                             node = nodeFactory.CreateNode(XmlNodeType.Element, "location", "");
                             Vector3 loc = obj.AbsolutePosition;
diff --git a/OpenSim/Region/DataSnapshot/SnapshotStore.cs b/OpenSim/Region/DataSnapshot/SnapshotStore.cs
index 70cb205..aa3d2ff 100644
--- a/OpenSim/Region/DataSnapshot/SnapshotStore.cs
+++ b/OpenSim/Region/DataSnapshot/SnapshotStore.cs
@@ -30,6 +30,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Reflection;
 using System.Text;
+using System.Text.RegularExpressions;
 using System.Xml;
 using log4net;
 using OpenSim.Region.DataSnapshot.Interfaces;
@@ -98,13 +99,21 @@ namespace OpenSim.Region.DataSnapshot
                 {
                     String path = DataFileNameFragment(provider.GetParentScene, provider.Name);
 
-                    using (XmlTextWriter snapXWriter = new XmlTextWriter(path, Encoding.Default))
+                    try
                     {
-                        snapXWriter.Formatting = Formatting.Indented;
-                        snapXWriter.WriteStartDocument();
-                        data.WriteTo(snapXWriter);
-                        snapXWriter.WriteEndDocument();
+                        using (XmlTextWriter snapXWriter = new XmlTextWriter(path, Encoding.Default))
+                        {
+                            snapXWriter.Formatting = Formatting.Indented;
+                            snapXWriter.WriteStartDocument();
+                            data.WriteTo(snapXWriter);
+                            snapXWriter.WriteEndDocument();
+                        }
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.WarnFormat("[DATASNAPSHOT]: Exception on writing to file {0}: {1}", path, e.Message);
                     }
+
                 }
 
                 //mark provider as not stale, parent scene as stale
@@ -185,12 +194,19 @@ namespace OpenSim.Region.DataSnapshot
                 //save snapshot
                 String path = DataFileNameScene(scene);
 
-                using (XmlTextWriter snapXWriter = new XmlTextWriter(path, Encoding.Default))
+                try
+                {
+                    using (XmlTextWriter snapXWriter = new XmlTextWriter(path, Encoding.Default))
+                    {
+                        snapXWriter.Formatting = Formatting.Indented;
+                        snapXWriter.WriteStartDocument();
+                        regionElement.WriteTo(snapXWriter);
+                        snapXWriter.WriteEndDocument();
+                    }
+                }
+                catch (Exception e)
                 {
-                    snapXWriter.Formatting = Formatting.Indented;
-                    snapXWriter.WriteStartDocument();
-                    regionElement.WriteTo(snapXWriter);
-                    snapXWriter.WriteEndDocument();
+                    m_log.WarnFormat("[DATASNAPSHOT]: Exception on writing to file {0}: {1}", path, e.Message);
                 }
 
                 m_scenes[scene] = false;
@@ -206,15 +222,23 @@ namespace OpenSim.Region.DataSnapshot
         #region Helpers
         private string DataFileNameFragment(Scene scene, String fragmentName)
         {
-            return Path.Combine(m_directory, Path.ChangeExtension(scene.RegionInfo.RegionName + "_" + fragmentName, "xml"));
+            return Path.Combine(m_directory, Path.ChangeExtension(Sanitize(scene.RegionInfo.RegionName + "_" + fragmentName), "xml"));
         }
 
         private string DataFileNameScene(Scene scene)
         {
-            return Path.Combine(m_directory, Path.ChangeExtension(scene.RegionInfo.RegionName, "xml"));
+            return Path.Combine(m_directory, Path.ChangeExtension(Sanitize(scene.RegionInfo.RegionName), "xml"));
             //return (m_snapsDir + Path.DirectorySeparatorChar + scene.RegionInfo.RegionName + ".xml");
         }
 
+        private static string Sanitize(string name)
+        {
+            string invalidChars = Regex.Escape(new string(Path.GetInvalidFileNameChars()));
+            string invalidReStr = string.Format(@"[{0}]", invalidChars);
+            string newname = Regex.Replace(name, invalidReStr, "_");
+            return newname.Replace('.', '_');
+        }
+
         private XmlNode MakeRegionNode(Scene scene, XmlDocument basedoc)
         {
             XmlNode docElement = basedoc.CreateNode(XmlNodeType.Element, "region", "");