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// 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.Collections.Generic;
using System.Linq;
using Duplicati.Library.Common.IO;
namespace Duplicati.Library.Snapshots
{
/// <summary>
/// Handler for providing a snapshot like access to files and folders
/// </summary>
public sealed class NoSnapshotWindows : SnapshotBase
{
/// <summary>
/// Returns the symlink target if the entry is a symlink, and null otherwise
/// </summary>
/// <param name="localPath">The file or folder to examine</param>
/// <returns>The symlink target</returns>
public override string GetSymlinkTarget(string localPath)
{
return SystemIO.IO_WIN.GetSymlinkTarget(localPath);
}
/// <summary>
/// Gets the attributes for the given file or folder
/// </summary>
/// <returns>The file attributes</returns>
/// <param name="localPath">The file or folder to examine</param>
public override System.IO.FileAttributes GetAttributes (string localPath)
{
return SystemIO.IO_WIN.GetFileAttributes(localPath);
}
/// <summary>
/// Returns the size of a file
/// </summary>
/// <param name="localPath">The full path to the file in non-snapshot format</param>
/// <returns>The length of the file</returns>
public override long GetFileSize (string localPath)
{
return SystemIO.IO_WIN.FileLength(localPath);
}
/// <summary>
/// Enumerates all files and folders in the snapshot, restricted to sources
/// </summary>
/// <param name="sources">Sources to enumerate</param>
/// <param name="callback">The callback to invoke with each found path</param>
/// <param name="errorCallback">The callback used to report errors</param>
public override IEnumerable<string> EnumerateFilesAndFolders(IEnumerable<string> sources, Utility.Utility.EnumerationFilterDelegate callback, Utility.Utility.ReportAccessError errorCallback)
{
// For Windows, ensure we don't store paths with extended device path prefixes (i.e., @"\\?\" or @"\\?\UNC\")
return base.EnumerateFilesAndFolders(sources.Select(SystemIOWindows.RemoveExtendedDevicePathPrefix), callback, errorCallback);
}
/// <summary>
/// Gets the last write time of a given file in UTC
/// </summary>
/// <param name="localPath">The full path to the file in non-snapshot format</param>
/// <returns>The last write time of the file</returns>
public override DateTime GetLastWriteTimeUtc (string localPath)
{
return SystemIO.IO_WIN.FileGetLastWriteTimeUtc(localPath);
}
/// <summary>
/// Gets the last write time of a given file in UTC
/// </summary>
/// <param name="localPath">The full path to the file in non-snapshot format</param>
/// <returns>The last write time of the file</returns>
public override DateTime GetCreationTimeUtc (string localPath)
{
return SystemIO.IO_WIN.FileGetCreationTimeUtc(localPath);
}
/// <summary>
/// Opens a file for reading
/// </summary>
/// <param name="localPath">The full path to the file in non-snapshot format</param>
/// <returns>An open filestream that can be read</returns>
public override System.IO.Stream OpenRead (string localPath)
{
return SystemIO.IO_WIN.FileOpenRead(localPath);
}
/// <summary>
/// Lists all files in the given folder
/// </summary>
/// <returns>All folders found in the folder</returns>
/// <param name='localFolderPath'>The folder to examinate</param>
protected override string[] ListFiles (string localFolderPath)
{
string[] tmp = SystemIO.IO_WIN.GetFiles(localFolderPath);
string[] res = new string[tmp.Length];
for(int i = 0; i < tmp.Length; i++)
res[i] = SystemIOWindows.RemoveExtendedDevicePathPrefix(tmp[i]);
return res;
}
/// <summary>
/// Lists all folders in the given folder
/// </summary>
/// <returns>All folders found in the folder</returns>
/// <param name='localFolderPath'>The folder to examinate</param>
protected override string[] ListFolders (string localFolderPath)
{
string[] tmp = SystemIO.IO_WIN.GetDirectories(SystemIOWindows.AddExtendedDevicePathPrefix(localFolderPath));
string[] res = new string[tmp.Length];
for (int i = 0; i < tmp.Length; i++)
res[i] = SystemIOWindows.RemoveExtendedDevicePathPrefix(tmp[i]);
return res;
}
/// <summary>
/// Gets the metadata for the given file or folder
/// </summary>
/// <returns>The metadata for the given file or folder</returns>
/// <param name="localPath">The file or folder to examine</param>
/// <param name="isSymlink">A flag indicating if the target is a symlink</param>
/// <param name="followSymlink">A flag indicating if a symlink should be followed</param>
public override Dictionary<string, string> GetMetadata(string localPath, bool isSymlink, bool followSymlink)
{
return SystemIO.IO_WIN.GetMetadata(localPath, isSymlink, followSymlink);
}
/// <inheritdoc />
public override string ConvertToLocalPath(string snapshotPath)
{
return snapshotPath;
}
/// <inheritdoc />
public override string ConvertToSnapshotPath(string localPath)
{
// For Windows, ensure we don't store paths with extended device path prefixes (i.e., @"\\?\" or @"\\?\UNC\")
return SystemIOWindows.RemoveExtendedDevicePathPrefix(localPath);
}
}
}
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