kenneth.skovhede@gmail.com
b0a359fd27
git-svn-id: https://duplicati.googlecode.com/svn/trunk@770 59da171f-624f-0410-aa54-27559c288bec
77 lines
2.7 KiB
C#
77 lines
2.7 KiB
C#
#region Disclaimer / License
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// Copyright (C) 2011, Kenneth Skovhede
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// http://www.hexad.dk, opensource@hexad.dk
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.IO;
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namespace Duplicati.Library.Encryption
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{
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internal class GPGStreamWrapper : Utility.OverrideableStream
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{
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private System.Diagnostics.Process m_p;
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private System.Threading.Thread m_t;
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/// <summary>
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/// Wraps a crypto stream, ensuring that it is correctly disposed
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/// </summary>
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/// <param name="basestream">The stream to wrape</param>
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public GPGStreamWrapper(System.Diagnostics.Process p, System.Threading.Thread t, Stream basestream)
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: base(basestream)
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{
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if (p == null)
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throw new NullReferenceException("p");
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if (t == null)
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throw new NullReferenceException("t");
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m_p = p;
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m_t = t;
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}
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protected override void Dispose(bool disposing)
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{
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if (m_p != null)
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{
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m_basestream.Close();
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if (!m_t.Join(5000))
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throw new System.Security.Cryptography.CryptographicException(Strings.GPGStreamWrapper.GPGFlushError);
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if (!m_p.WaitForExit(5000))
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throw new System.Security.Cryptography.CryptographicException(Strings.GPGStreamWrapper.GPGTerminateError);
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if (!m_p.StandardError.EndOfStream)
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{
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string errmsg = m_p.StandardError.ReadToEnd();
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if (errmsg.Contains("decryption failed:"))
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throw new System.Security.Cryptography.CryptographicException(string.Format(Strings.GPGStreamWrapper.DecryptionError, errmsg));
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}
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m_p.Dispose();
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m_p = null;
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m_t = null;
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}
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base.Dispose(disposing);
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}
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}
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}
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