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76 lines
3.7 KiB
76 lines
3.7 KiB
/* Copyright (C) 2008-2016 Peter Palotas, Jeffrey Jangli, Alexandr Normuradov
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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using System;
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using System.Runtime.InteropServices;
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using System.Security;
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namespace Alphaleonis.Win32.Filesystem
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{
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public static partial class File
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{
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/// <summary>[AlphaFS] Retrieves the encryption status of the specified file.</summary>
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/// <param name="path">The name of the file.</param>
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/// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
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/// <returns>The <see cref="FileEncryptionStatus"/> of the specified <paramref name="path"/>.</returns>
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[SecurityCritical]
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public static FileEncryptionStatus GetEncryptionStatus(string path, PathFormat pathFormat)
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{
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return GetEncryptionStatusCore(path, pathFormat);
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}
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/// <summary>[AlphaFS] Retrieves the encryption status of the specified file.</summary>
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/// <param name="path">The name of the file.</param>
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/// <returns>The <see cref="FileEncryptionStatus"/> of the specified <paramref name="path"/>.</returns>
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[SecurityCritical]
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public static FileEncryptionStatus GetEncryptionStatus(string path)
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{
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return GetEncryptionStatusCore(path, PathFormat.RelativePath);
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}
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/// <summary>Retrieves the encryption status of the specified file.</summary>
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/// <param name="path">The name of the file.</param>
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/// <param name="pathFormat">Indicates the format of the path parameter(s).</param>
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/// <returns>The <see cref="FileEncryptionStatus"/> of the specified <paramref name="path"/>.</returns>
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[SecurityCritical]
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internal static FileEncryptionStatus GetEncryptionStatusCore(string path, PathFormat pathFormat)
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{
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if (pathFormat != PathFormat.LongFullPath && Utils.IsNullOrWhiteSpace(path))
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throw new ArgumentNullException("path");
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string pathLp = Path.GetExtendedLengthPathCore(null, path, pathFormat, GetFullPathOptions.RemoveTrailingDirectorySeparator | GetFullPathOptions.FullCheck);
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FileEncryptionStatus status;
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// FileEncryptionStatus()
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// In the ANSI version of this function, the name is limited to 248 characters.
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// To extend this limit to 32,767 wide characters, call the Unicode version of the function and prepend "\\?\" to the path.
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// 2013-01-13: MSDN does not confirm LongPath usage but a Unicode version of this function exists.
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if (!NativeMethods.FileEncryptionStatus(pathLp, out status))
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NativeError.ThrowException(Marshal.GetLastWin32Error(), pathLp);
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return status;
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}
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}
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}
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