Ignore exception when file access time is not valid

When getting the value from FileSystemInfo.LastAccessTime, it will internally convert
the FILETIME value from Windows API to a DateTime. If the value represents a date after
12/31/9999 it will throw ArgumentOutOfRangeException, because this is not supported by
DateTime. Some file systems seem to set strange access timestamps on files, which
may lead to this exception being thrown. Since the last accessed timestamp is not
important such exceptions are now just silently ignored.

1 files changed, 13 insertions, 1 deletions

diff --git a/Duplicati/Library/Common/IO/SystemIOWindows.cs b/Duplicati/Library/Common/IO/SystemIOWindows.cs
index adf797d2a..343dcb78e 100644
--- a/Duplicati/Library/Common/IO/SystemIOWindows.cs
+++ b/Duplicati/Library/Common/IO/SystemIOWindows.cs
@@ -508,7 +508,19 @@ namespace Duplicati.Library.Common.IO
         public IFileEntry FileEntry(string path)

         {

             var fileInfo = new FileInfo(AddExtendedDevicePathPrefix(path));

-            return new FileEntry(fileInfo.Name, fileInfo.Length, fileInfo.LastAccessTime, fileInfo.LastWriteTime);

+            var lastAccess = new DateTime();

+            try

+            {

+                // Internally this will convert the FILETIME value from Windows API to a

+                // DateTime. If the value represents a date after 12/31/9999 it will throw

+                // ArgumentOutOfRangeException, because this is not supported by DateTime.

+                // Some file systems seem to set strange access timestamps on files, which

+                // may lead to this exception being thrown. Since the last accessed

+                // timestamp is not important such exeptions are just silently ignored.

+                lastAccess = fileInfo.LastAccessTime;

+            }

+            catch { }

+            return new FileEntry(fileInfo.Name, fileInfo.Length, lastAccess, fileInfo.LastWriteTime);

         }

 

         public Dictionary<string, string> GetMetadata(string path, bool isSymlink, bool followSymlink)