// Copyright (C) 2015, The Duplicati Team
// http://www.duplicati.com, info@duplicati.com
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
using System;
using System.Text;
using System.Collections.Generic;
using Alphaleonis.Win32.Filesystem;
namespace Duplicati.Library.Snapshots
{
///
/// Handler for providing a snapshot like access to files and folders
///
public class NoSnapshotWindows : NoSnapshot
{
private SystemIOWindows m_sysIO = new SystemIOWindows();
public NoSnapshotWindows(string[] sources)
: base(sources)
{
}
public NoSnapshotWindows(string[] sources, Dictionary options)
: base(sources, options)
{
}
///
/// Returns the symlink target if the entry is a symlink, and null otherwise
///
/// The file or folder to examine
/// The symlink target
public override string GetSymlinkTarget(string file)
{
try { return File.GetLinkTargetInfo(SystemIOWindows.PrefixWithUNC(file)).PrintName; }
catch (NotAReparsePointException) { }
catch (UnrecognizedReparsePointException) { }
return null;
}
///
/// Gets the attributes for the given file or folder
///
/// The file attributes
/// The file or folder to examine
public override System.IO.FileAttributes GetAttributes (string file)
{
return m_sysIO.GetFileAttributes(file);
}
///
/// Returns the size of a file
///
/// The full path to the file in non-snapshot format
/// The lenth of the file
public override long GetFileSize (string file)
{
return m_sysIO.FileLength(file);
}
///
/// Gets the last write time of a given file in UTC
///
/// The full path to the file in non-snapshot format
/// The last write time of the file
public override DateTime GetLastWriteTimeUtc (string file)
{
return m_sysIO.FileGetLastWriteTimeUtc(file);
}
///
/// Gets the last write time of a given file in UTC
///
/// The full path to the file in non-snapshot format
/// The last write time of the file
public override DateTime GetCreationTimeUtc (string file)
{
return m_sysIO.FileGetCreationTimeUtc(file);
}
///
/// Opens a file for reading
///
/// The full path to the file in non-snapshot format
/// An open filestream that can be read
public override System.IO.Stream OpenRead (string file)
{
return m_sysIO.FileOpenRead(file);
}
///
/// Lists all files in the given folder
///
/// All folders found in the folder
/// The folder to examinate
protected override string[] ListFiles (string folder)
{
if (!SystemIOWindows.IsPathTooLong(folder))
try { return base.ListFiles(folder); }
catch (System.IO.PathTooLongException) { }
string[] tmp = Directory.GetFiles(SystemIOWindows.PrefixWithUNC(folder));
string[] res = new string[tmp.Length];
for(int i = 0; i < tmp.Length; i++)
res[i] = SystemIOWindows.StripUNCPrefix(tmp[i]);
return res;
}
///
/// Lists all folders in the given folder
///
/// All folders found in the folder
/// The folder to examinate
protected override string[] ListFolders (string folder)
{
if (!SystemIOWindows.IsPathTooLong(folder))
try { return base.ListFolders(folder); }
catch (System.IO.PathTooLongException) { }
string[] tmp = Directory.GetDirectories(SystemIOWindows.PrefixWithUNC(folder));
string[] res = new string[tmp.Length];
for (int i = 0; i < tmp.Length; i++)
res[i] = SystemIOWindows.StripUNCPrefix(tmp[i]);
return res;
}
///
/// Gets the metadata for the given file or folder
///
/// The metadata for the given file or folder
/// The file or folder to examine
public override Dictionary GetMetadata(string file)
{
return m_sysIO.GetMetadata(file);
}
///
/// Gets a value indicating if the path points to a block device
///
/// true if this instance is a block device; otherwise, false.
/// The file or folder to examine
public override bool IsBlockDevice(string file)
{
return false;
}
///
/// Gets a unique hardlink target ID
///
/// The hardlink ID
/// The file or folder to examine
public override string HardlinkTargetID(string path)
{
return null;
}
}
}