KeePassLib finally portable (but version 2.19)

Windows Store project stub
2025-10-04 08:00:16 -04:00 · 2017-09-11 15:13:04 +02:00
parent 9640efaa5f
commit d3a3d73491
154 changed files with 102785 additions and 787 deletions
--- a/ModernKeePassLib/Serialization/FileTransactionEx.cs
+++ b/ModernKeePassLib/Serialization/FileTransactionEx.cs
@@ -0,0 +1,148 @@
+/*
+  KeePass Password Safe - The Open-Source Password Manager
+  Copyright (C) 2003-2012 Dominik Reichl <dominik.reichl@t-online.de>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program 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 General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+using System.Diagnostics;
+
+// Bert TODO: For now, remove the accesscontrol from this class. 
+// In WinRT, the security of file has changed, and something could potentially be done
+// http://msdn.microsoft.com/en-us/library/windows/desktop/aa364399%28v=vs.85%29.aspx
+
+#if !KeePassLibSD && TODO
+using System.Security.AccessControl;
+#endif
+
+using ModernKeePassLib.Utility;
+
+namespace ModernKeePassLib.Serialization
+{
+	public sealed class FileTransactionEx
+	{
+		private bool m_bTransacted;
+		private IOConnectionInfo m_iocBase;
+		private IOConnectionInfo m_iocTemp;
+
+		private bool m_bMadeUnhidden = false;
+
+		private const string StrTempSuffix = ".tmp";
+
+		public FileTransactionEx(IOConnectionInfo iocBaseFile)
+		{
+			Initialize(iocBaseFile, true);
+		}
+
+		public FileTransactionEx(IOConnectionInfo iocBaseFile, bool bTransacted)
+		{
+			Initialize(iocBaseFile, bTransacted);
+		}
+
+		private void Initialize(IOConnectionInfo iocBaseFile, bool bTransacted)
+		{
+			if(iocBaseFile == null) throw new ArgumentNullException("iocBaseFile");
+
+			m_bTransacted = bTransacted;
+			m_iocBase = iocBaseFile.CloneDeep();
+
+			if(m_bTransacted)
+			{
+				m_iocTemp = m_iocBase.CloneDeep();
+				m_iocTemp.Path += StrTempSuffix;
+			}
+			else m_iocTemp = m_iocBase;
+		}
+
+		public Stream OpenWrite()
+		{
+			if(!m_bTransacted) m_bMadeUnhidden = UrlUtil.UnhideFile(m_iocTemp.Path);
+			else // m_bTransacted
+			{
+				try { IOConnection.DeleteFile(m_iocTemp); }
+				catch(Exception) { }
+			}
+
+			return IOConnection.OpenWrite(m_iocTemp);
+		}
+
+		public void CommitWrite()
+		{
+			if(m_bTransacted) CommitWriteTransaction();
+			else // !m_bTransacted
+			{
+				if(m_bMadeUnhidden) UrlUtil.HideFile(m_iocTemp.Path, true); // Hide again
+			}
+		}
+
+		private void CommitWriteTransaction()
+		{
+			bool bMadeUnhidden = UrlUtil.UnhideFile(m_iocBase.Path);
+
+#if !KeePassLibSD && TODO
+			FileSecurity bkSecurity = null;
+			bool bEfsEncrypted = false;
+#endif
+
+			if(IOConnection.FileExists(m_iocBase))
+			{
+#if !KeePassLibSD && TODO
+				if(m_iocBase.IsLocalFile())
+				{
+					try
+					{
+						FileAttributes faBase = File.GetAttributes(m_iocBase.Path);
+						bEfsEncrypted = ((long)(faBase & FileAttributes.Encrypted) != 0);
+
+						DateTime tCreation = File.GetCreationTime(m_iocBase.Path);
+						bkSecurity = File.GetAccessControl(m_iocBase.Path);
+
+						File.SetCreationTime(m_iocTemp.Path, tCreation);
+					}
+					catch(Exception) { Debug.Assert(false); }
+				}
+#endif
+
+				IOConnection.DeleteFile(m_iocBase);
+			}
+
+			IOConnection.RenameFile(m_iocTemp, m_iocBase);
+
+#if !KeePassLibSD && TODO
+			if(m_iocBase.IsLocalFile())
+			{
+				try
+				{
+					if(bEfsEncrypted)
+					{
+						try { File.Encrypt(m_iocBase.Path); }
+						catch(Exception) { Debug.Assert(false); }
+					}
+
+					if(bkSecurity != null)
+						File.SetAccessControl(m_iocBase.Path, bkSecurity);
+				}
+				catch(Exception) { Debug.Assert(false); }
+			}
+#endif
+
+			if(bMadeUnhidden) UrlUtil.HideFile(m_iocBase.Path, true); // Hide again
+		}
+	}
+}