/* 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
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
using System;
using System.Runtime.InteropServices;
using System.Security;
namespace Alphaleonis.Win32.Filesystem
{
public static partial class File
{
/// [AlphaFS] Retrieves the encryption status of the specified file.
/// The name of the file.
/// Indicates the format of the path parameter(s).
/// The of the specified .
[SecurityCritical]
public static FileEncryptionStatus GetEncryptionStatus(string path, PathFormat pathFormat)
{
return GetEncryptionStatusCore(path, pathFormat);
}
/// [AlphaFS] Retrieves the encryption status of the specified file.
/// The name of the file.
/// The of the specified .
[SecurityCritical]
public static FileEncryptionStatus GetEncryptionStatus(string path)
{
return GetEncryptionStatusCore(path, PathFormat.RelativePath);
}
/// Retrieves the encryption status of the specified file.
/// The name of the file.
/// Indicates the format of the path parameter(s).
/// The of the specified .
[SecurityCritical]
internal static FileEncryptionStatus GetEncryptionStatusCore(string path, PathFormat pathFormat)
{
if (pathFormat != PathFormat.LongFullPath && Utils.IsNullOrWhiteSpace(path))
throw new ArgumentNullException("path");
string pathLp = Path.GetExtendedLengthPathCore(null, path, pathFormat, GetFullPathOptions.RemoveTrailingDirectorySeparator | GetFullPathOptions.FullCheck);
FileEncryptionStatus status;
// FileEncryptionStatus()
// In the ANSI version of this function, the name is limited to 248 characters.
// To extend this limit to 32,767 wide characters, call the Unicode version of the function and prepend "\\?\" to the path.
// 2013-01-13: MSDN does not confirm LongPath usage but a Unicode version of this function exists.
if (!NativeMethods.FileEncryptionStatus(pathLp, out status))
NativeError.ThrowException(Marshal.GetLastWin32Error(), pathLp);
return status;
}
}
}