NTFSSecurity/AlphaFS/Filesystem/Directory Class/Directory.Compression.cs

/*  Copyright (C) 2008-2016 Peter Palotas, Jeffrey Jangli, Alexandr Normuradov
 *  
 *  Permission is hereby granted, free of charge, to any person obtaining a copy 
 *  of this software and associated documentation files (the "Software"), to deal 
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 *  
 *  The above copyright notice and this permission notice shall be included in 
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 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
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using System;
using System.IO;
using System.Security;

namespace Alphaleonis.Win32.Filesystem
{
   partial class Directory
   {
      #region Compress

      /// <summary>[AlphaFS] Compresses a directory using NTFS compression.</summary>
      /// <remarks>This will only compress the root items (non recursive).</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="path">A path that describes a directory to compress.</param>
      [SecurityCritical]
      public static void Compress(string path)
      {
         CompressDecompressCore(null, path, Path.WildcardStarMatchAll, DirectoryEnumerationOptions.FilesAndFolders, true, PathFormat.RelativePath);
      }

      /// <summary>[AlphaFS] Compresses a directory using NTFS compression.</summary>
      /// <remarks>This will only compress the root items (non recursive).</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="path">A path that describes a directory to compress.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      public static void Compress(string path, PathFormat pathFormat)
      {
         CompressDecompressCore(null, path, Path.WildcardStarMatchAll, DirectoryEnumerationOptions.FilesAndFolders, true, pathFormat);
      }



      /// <summary>[AlphaFS] Compresses a directory using NTFS compression.</summary>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="path">A path that describes a directory to compress.</param>
      /// <param name="options"><see cref="DirectoryEnumerationOptions"/> flags that specify how the directory is to be enumerated.</param>
      [SecurityCritical]
      public static void Compress(string path, DirectoryEnumerationOptions options)
      {
         CompressDecompressCore(null, path, Path.WildcardStarMatchAll, options, true, PathFormat.RelativePath);
      }

      /// <summary>[AlphaFS] Compresses a directory using NTFS compression.</summary>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="path">A path that describes a directory to compress.</param>
      /// <param name="options"><see cref="DirectoryEnumerationOptions"/> flags that specify how the directory is to be enumerated.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      public static void Compress(string path, DirectoryEnumerationOptions options, PathFormat pathFormat)
      {
         CompressDecompressCore(null, path, Path.WildcardStarMatchAll, options, true, pathFormat);
      }
      
      #region Transactional

      /// <summary>[AlphaFS] Compresses a directory using NTFS compression.</summary>
      /// <remarks>This will only compress the root items (non recursive).</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="transaction">The transaction.</param>
      /// <param name="path">A path that describes a directory to compress.</param>
      [SecurityCritical]
      public static void CompressTransacted(KernelTransaction transaction, string path)
      {
         CompressDecompressCore(transaction, path, Path.WildcardStarMatchAll, DirectoryEnumerationOptions.FilesAndFolders, true, PathFormat.RelativePath);
      }

      /// <summary>[AlphaFS] Compresses a directory using NTFS compression.</summary>
      /// <remarks>This will only compress the root items (non recursive).</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="transaction">The transaction.</param>
      /// <param name="path">A path that describes a directory to compress.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      public static void CompressTransacted(KernelTransaction transaction, string path, PathFormat pathFormat)
      {
         CompressDecompressCore(transaction, path, Path.WildcardStarMatchAll, DirectoryEnumerationOptions.FilesAndFolders, true, pathFormat);
      }



      /// <summary>[AlphaFS] Compresses a directory using NTFS compression.</summary>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="transaction">The transaction.</param>
      /// <param name="path">A path that describes a directory to compress.</param>
      /// <param name="options"><see cref="DirectoryEnumerationOptions"/> flags that specify how the directory is to be enumerated.</param>
      [SecurityCritical]
      public static void CompressTransacted(KernelTransaction transaction, string path, DirectoryEnumerationOptions options)
      {
         CompressDecompressCore(transaction, path, Path.WildcardStarMatchAll, options, true, PathFormat.RelativePath);
      }

      /// <summary>[AlphaFS] Compresses a directory using NTFS compression.</summary>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="transaction">The transaction.</param>
      /// <param name="path">A path that describes a directory to compress.</param>
      /// <param name="options"><see cref="DirectoryEnumerationOptions"/> flags that specify how the directory is to be enumerated.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      public static void CompressTransacted(KernelTransaction transaction, string path, DirectoryEnumerationOptions options, PathFormat pathFormat)
      {
         CompressDecompressCore(transaction, path, Path.WildcardStarMatchAll, options, true, pathFormat);
      }

      #endregion // Transactional

      #endregion // Compress

      #region Decompress

      /// <summary>[AlphaFS] Decompresses an NTFS compressed directory.</summary>
      /// <remarks>This will only decompress the root items (non recursive).</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="path">A path that describes a directory to decompress.</param>
      [SecurityCritical]
      public static void Decompress(string path)
      {
         CompressDecompressCore(null, path, Path.WildcardStarMatchAll, DirectoryEnumerationOptions.FilesAndFolders, false, PathFormat.RelativePath);
      }

      /// <summary>[AlphaFS] Decompresses an NTFS compressed directory.</summary>
      /// <remarks>This will only decompress the root items (non recursive).</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="path">A path that describes a directory to decompress.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      public static void Decompress(string path, PathFormat pathFormat)
      {
         CompressDecompressCore(null, path, Path.WildcardStarMatchAll, DirectoryEnumerationOptions.FilesAndFolders, false, pathFormat);
      }



      /// <summary>[AlphaFS] Decompresses an NTFS compressed directory.</summary>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="path">A path that describes a directory to decompress.</param>
      /// <param name="options"><see cref="DirectoryEnumerationOptions"/> flags that specify how the directory is to be enumerated.</param>
      [SecurityCritical]
      public static void Decompress(string path, DirectoryEnumerationOptions options)
      {
         CompressDecompressCore(null, path, Path.WildcardStarMatchAll, options, false, PathFormat.RelativePath);
      }

      /// <summary>[AlphaFS] Decompresses an NTFS compressed directory.</summary>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="path">A path that describes a directory to decompress.</param>
      /// <param name="options"><see cref="DirectoryEnumerationOptions"/> flags that specify how the directory is to be enumerated.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      public static void Decompress(string path, DirectoryEnumerationOptions options, PathFormat pathFormat)
      {
         CompressDecompressCore(null, path, Path.WildcardStarMatchAll, options, false, pathFormat);
      }

      #region Transactional

      /// <summary>[AlphaFS] Decompresses an NTFS compressed directory.</summary>
      /// <remarks>This will only decompress the root items (non recursive).</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="transaction">The transaction.</param>
      /// <param name="path">A path that describes a directory to decompress.</param>
      [SecurityCritical]
      public static void DecompressTransacted(KernelTransaction transaction, string path)
      {
         CompressDecompressCore(transaction, path, Path.WildcardStarMatchAll, DirectoryEnumerationOptions.FilesAndFolders, false, PathFormat.RelativePath);
      }

      /// <summary>[AlphaFS] Decompresses an NTFS compressed directory.</summary>
      /// <remarks>This will only decompress the root items (non recursive).</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="transaction">The transaction.</param>
      /// <param name="path">A path that describes a directory to decompress.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      public static void DecompressTransacted(KernelTransaction transaction, string path, PathFormat pathFormat)
      {
         CompressDecompressCore(transaction, path, Path.WildcardStarMatchAll, DirectoryEnumerationOptions.FilesAndFolders, false, pathFormat);
      }

      
      
      /// <summary>[AlphaFS] Decompresses an NTFS compressed directory.</summary>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="transaction">The transaction.</param>
      /// <param name="path">A path that describes a directory to decompress.</param>
      /// <param name="options"><see cref="DirectoryEnumerationOptions"/> flags that specify how the directory is to be enumerated.</param>
      [SecurityCritical]
      public static void DecompressTransacted(KernelTransaction transaction, string path, DirectoryEnumerationOptions options)
      {
         CompressDecompressCore(transaction, path, Path.WildcardStarMatchAll, options, false, PathFormat.RelativePath);
      }

      /// <summary>[AlphaFS] Decompresses an NTFS compressed directory.</summary>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="transaction">The transaction.</param>
      /// <param name="path">A path that describes a directory to decompress.</param>
      /// <param name="options"><see cref="DirectoryEnumerationOptions"/> flags that specify how the directory is to be enumerated.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      public static void DecompressTransacted(KernelTransaction transaction, string path, DirectoryEnumerationOptions options, PathFormat pathFormat)
      {
         CompressDecompressCore(transaction, path, Path.WildcardStarMatchAll, options, false, pathFormat);
      }

      #endregion // Transactional

      #endregion // Decompress

      #region DisableCompression

      /// <summary>[AlphaFS] Disables NTFS compression of the specified directory and the files in it.</summary>
      /// <remarks>This method disables the directory-compression attribute. It will not decompress the current contents of the directory. However, newly created files and directories will be uncompressed.</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="path">A path to a directory to decompress.</param>
      [SecurityCritical]
      public static void DisableCompression(string path)
      {
         Device.ToggleCompressionCore(true, null, path, false, PathFormat.RelativePath);
      }

      /// <summary>[AlphaFS] Disables NTFS compression of the specified directory and the files in it.</summary>
      /// <remarks>This method disables the directory-compression attribute. It will not decompress the current contents of the directory. However, newly created files and directories will be uncompressed.</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="path">A path to a directory to decompress.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      public static void DisableCompression(string path, PathFormat pathFormat)
      {
         Device.ToggleCompressionCore(true, null, path, false, pathFormat);
      }



      /// <summary>[AlphaFS] Disables NTFS compression of the specified directory and the files in it.</summary>
      /// <remarks>This method disables the directory-compression attribute. It will not decompress the current contents of the directory. However, newly created files and directories will be uncompressed.</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="transaction">The transaction.</param>
      /// <param name="path">A path to a directory to decompress.</param>
      [SecurityCritical]
      public static void DisableCompressionTransacted(KernelTransaction transaction, string path)
      {
         Device.ToggleCompressionCore(true, transaction, path, false, PathFormat.RelativePath);
      }

      /// <summary>[AlphaFS] Disables NTFS compression of the specified directory and the files in it.</summary>
      /// <remarks>This method disables the directory-compression attribute. It will not decompress the current contents of the directory. However, newly created files and directories will be uncompressed.</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="transaction">The transaction.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      /// <param name="path">A path to a directory to decompress.</param>
      [SecurityCritical]
      public static void DisableCompressionTransacted(KernelTransaction transaction, string path, PathFormat pathFormat)
      {
         Device.ToggleCompressionCore(true, transaction, path, false, pathFormat);
      }
      
      #endregion // DisableCompression

      #region EnableCompression

      /// <summary>[AlphaFS] Enables NTFS compression of the specified directory and the files in it.</summary>
      /// <remarks>This method enables the directory-compression attribute. It will not compress the current contents of the directory. However, newly created files and directories will be compressed.</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="path">A path to a directory to compress.</param>
      [SecurityCritical]
      public static void EnableCompression(string path)
      {
         Device.ToggleCompressionCore(true, null, path, true, PathFormat.RelativePath);
      }

      /// <summary>[AlphaFS] Enables NTFS compression of the specified directory and the files in it.</summary>
      /// <remarks>This method enables the directory-compression attribute. It will not compress the current contents of the directory. However, newly created files and directories will be compressed.</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="path">A path to a directory to compress.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      public static void EnableCompression(string path, PathFormat pathFormat)
      {
         Device.ToggleCompressionCore(true, null, path, true, pathFormat);
      }



      /// <summary>[AlphaFS] Enables NTFS compression of the specified directory and the files in it.</summary>
      /// <remarks>This method enables the directory-compression attribute. It will not compress the current contents of the directory. However, newly created files and directories will be compressed.</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="transaction">The transaction.</param>
      /// <param name="path">A path to a directory to compress.</param>
      [SecurityCritical]
      public static void EnableCompressionTransacted(KernelTransaction transaction, string path)
      {
         Device.ToggleCompressionCore(true, transaction, path, true, PathFormat.RelativePath);
      }

      /// <summary>[AlphaFS] Enables NTFS compression of the specified directory and the files in it.</summary>
      /// <remarks>This method enables the directory-compression attribute. It will not compress the current contents of the directory. However, newly created files and directories will be compressed.</remarks>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="transaction">The transaction.</param>
      /// <param name="path">A path to a directory to compress.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      public static void EnableCompressionTransacted(KernelTransaction transaction, string path, PathFormat pathFormat)
      {
         Device.ToggleCompressionCore(true, transaction, path, true, pathFormat);
      }
      
      #endregion // EnableCompression

      #region Internal Methods

      /// <summary>Compress/decompress Non-/Transacted files/directories.</summary>
      /// <exception cref="ArgumentException"/>
      /// <exception cref="ArgumentNullException"/>
      /// <exception cref="DirectoryNotFoundException"/>
      /// <exception cref="IOException"/>
      /// <exception cref="NotSupportedException"/>
      /// <exception cref="UnauthorizedAccessException"/>
      /// <param name="transaction">The transaction.</param>
      /// <param name="path">A path that describes a directory to compress.</param>
      /// <param name="searchPattern">
      ///   The search string to match against the names of directories in <paramref name="path"/>.
      ///   This parameter can contain a combination of valid literal path and wildcard
      ///   (<see cref="Path.WildcardStarMatchAll"/> and <see cref="Path.WildcardQuestion"/>) characters, but does not support regular expressions.
      /// </param>
      /// <param name="options"><see cref="DirectoryEnumerationOptions"/> flags that specify how the directory is to be enumerated.</param>
      /// <param name="compress"><see langword="true"/> compress, when <see langword="false"/> decompress.</param>
      /// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
      [SecurityCritical]
      internal static void CompressDecompressCore(KernelTransaction transaction, string path, string searchPattern, DirectoryEnumerationOptions options, bool compress, PathFormat pathFormat)
      {
         string pathLp = Path.GetExtendedLengthPathCore(transaction, path, pathFormat, GetFullPathOptions.RemoveTrailingDirectorySeparator | GetFullPathOptions.FullCheck);

         // Process directories and files.
         foreach (var fsei in EnumerateFileSystemEntryInfosCore<string>(transaction, pathLp, searchPattern, options | DirectoryEnumerationOptions.AsLongPath, PathFormat.LongFullPath))
            Device.ToggleCompressionCore(true, transaction, fsei, compress, PathFormat.LongFullPath);

         // Compress the root directory, the given path.
         Device.ToggleCompressionCore(true, transaction, pathLp, compress, PathFormat.LongFullPath);
      }

      #endregion // Internal Methods
   }
}