/// <summary></summary>
/// <param name=""></param>
/// <param name=""></param>
private void ReadSourceDirectories(PairOfFiles ParentDirectory, List <PairOfFiles> ltPairsRead)
{
PairOfFiles NewPair;
if (_eState == nState.Working) // test if cancel was requested
{
_quReturn.Enqueue(new BackgroundMessage(BackgroundMessage.nType.Status, ParentDirectory.sSourcePath));
ReadSourceFiles(ParentDirectory, ltPairsRead); // read all files in this directory
try
{
foreach (string DirectoryName in Directory.GetDirectories(ParentDirectory.sSourcePath))
{
NewPair = new PairOfFiles(ParentDirectory, ParentDirectory.SourceDrive.RemoveRootPath(DirectoryName), PairOfFiles.nComparison.UnknownDestination, true, _TextConverter);
ltPairsRead.Add(NewPair);
if (NewPair.eComparison != PairOfFiles.nComparison.Error)
{
ReadSourceDirectories(NewPair, ltPairsRead); // recurse to the next level and search for directories, files and access errors there
}
}
}
catch (Exception ex) // if something goes wrong, we still have the parent pair to store the error message for us
{
ParentDirectory.eComparison = PairOfFiles.nComparison.Error;
ParentDirectory.sErrorMessage = ex.Message;
}
}
}
/// <summary></summary>
/// <param name=""></param>
public void RemovePair(PairOfFiles PairToRemove)
{
if ((_ltEncryptedPairs != null) && _ltEncryptedPairs.Contains(PairToRemove))
{
_ltEncryptedPairs.Remove(PairToRemove);
}
}
/// <summary></summary>
/// <param name=""></param>
/// <param name=""></param>
private void ReadDestinationFiles(PairOfFiles ParentDirectory, List <PairOfFiles> ltPairsRead)
{
PairOfFiles FoundPair, NewPair;
try
{
foreach (string FileName in Directory.GetFiles(ParentDirectory.sDestinationPath))
{
NewPair = new PairOfFiles(ParentDirectory, ParentDirectory.DestinationDrive.RemoveRootPath(FileName), PairOfFiles.nComparison.UnknownSource, false, _TextConverter);
FoundPair = ltPairsRead.SingleOrDefault(p => (p.sRelativePath == NewPair.sRelativePath) && !p.isDirectory);
if (FoundPair == null) // there is no source file with this relative path
{
ltPairsRead.Add(NewPair);
if (NewPair.eComparison != PairOfFiles.nComparison.Error)
{
NewPair.eComparison = PairOfFiles.nComparison.DestinationOnly;
}
}
else if (NewPair.eComparison == PairOfFiles.nComparison.Error)
{
FoundPair.eComparison = NewPair.eComparison;
}
else
{
FoundPair.eComparison = PairOfFiles.nComparison.BothExist;
}
}
}
catch (Exception ex)
{
ParentDirectory.eComparison = PairOfFiles.nComparison.Error;
ParentDirectory.sErrorMessage = ex.Message;
}
}
/// <summary></summary>
/// <param name=""></param>
public void AddPair(PairOfFiles PairToAdd)
{
if ((_eEncryptionType != nEncryptionType.DirectoryUnencrypted) && (_ltEncryptedPairs != null) && !_ltEncryptedPairs.Contains(PairToAdd))
{
_ltEncryptedPairs.Add(PairToAdd);
}
}
/// <summary>A constructor to initialize a <c>new BackgroundMessage</c>.</summary>
/// <param name=""></param>
public BackgroundMessage(nType eType)
{
_eType = eType;
_eReturnCode = nReturnCode.Empty;
_iValue = _iProgressMaximum = 0;
_sText = string.Empty;
_TimeStamp = DateTime.MinValue;
_DriveProperty = null;
_PairProperty = null;
}
/// <summary></summary>
/// <param name=""></param>
private void Copy(PairOfFiles PairToCopy)
{
if (PairToCopy.isDirectory)
{
CopyDirectory(PairToCopy);
}
else
{
CopyFile(PairToCopy);
}
}
/// <summary></summary>
/// <param name=""></param>
private void DestinationOnly(PairOfFiles PairToSynchronize)
{
switch (PairToSynchronize.eSynchronizationMode)
{
case PairOfFiles.nSynchronizationMode.NoDelete: Skip(PairToSynchronize); break;
case PairOfFiles.nSynchronizationMode.WithDelete: Delete(PairToSynchronize); break;
case PairOfFiles.nSynchronizationMode.TwoWay: PairToSynchronize.SwapSourceAndDestination(); Copy(PairToSynchronize); break;
}
}
/// <summary></summary>
/// <param name=""></param>
private void Delete(PairOfFiles PairToDelete)
{
if (PairToDelete.isDirectory)
{
DeleteDirectory(PairToDelete);
}
else
{
DeleteFile(PairToDelete);
}
_quReturn.Enqueue(new BackgroundMessage(BackgroundMessage.nType.ReportProgress, 1));
}
/// <summary></summary>
/// <param name=""></param>
/// <param name=""></param>
private void ReadSourceFiles(PairOfFiles ParentDirectory, List <PairOfFiles> ltPairsRead)
{
PairOfFiles NewPair;
try
{
foreach (string FileName in Directory.GetFiles(ParentDirectory.sSourcePath))
{
NewPair = new PairOfFiles(ParentDirectory, ParentDirectory.SourceDrive.RemoveRootPath(FileName), PairOfFiles.nComparison.UnknownDestination, false, _TextConverter);
ltPairsRead.Add(NewPair);
}
}
catch (Exception ex)
{
ParentDirectory.eComparison = PairOfFiles.nComparison.Error;
ParentDirectory.sErrorMessage = ex.Message;
}
}
/// <summary></summary>
/// <param name=""></param>
/// <param name=""></param>
private void ReadDestinationDirectories(PairOfFiles ParentDirectory, List <PairOfFiles> ltPairsRead)
{
PairOfFiles FoundPair, NewPair;
if (_eState == nState.Working) // test if cancel was requested
{
_quReturn.Enqueue(new BackgroundMessage(BackgroundMessage.nType.Status, ParentDirectory.sDestinationPath));
ReadDestinationFiles(ParentDirectory, ltPairsRead); // read all files in this directory
try
{
foreach (string DirectoryName in Directory.GetDirectories(ParentDirectory.sDestinationPath))
{
NewPair = new PairOfFiles(ParentDirectory, ParentDirectory.DestinationDrive.RemoveRootPath(DirectoryName), PairOfFiles.nComparison.UnknownSource, true, _TextConverter);
FoundPair = ltPairsRead.SingleOrDefault(p => (p.sRelativePath == NewPair.sRelativePath) && p.isDirectory);
if (FoundPair == null) // there is no source directory with this relative path
{
ltPairsRead.Add(NewPair);
if (NewPair.eComparison != PairOfFiles.nComparison.Error)
{
NewPair.eComparison = PairOfFiles.nComparison.DestinationOnly;
ReadDestinationDirectories(NewPair, ltPairsRead); // recurse to the next level and search for directories, files and access errors there
}
}
else if (NewPair.eComparison == PairOfFiles.nComparison.Error)
{
FoundPair.eComparison = NewPair.eComparison;
}
else
{
FoundPair.eComparison = PairOfFiles.nComparison.BothExist;
ReadDestinationDirectories(FoundPair, ltPairsRead); // recurse to the next level and search for directories, files and access errors there
}
}
}
catch (Exception ex) // if something goes wrong, we still have the parent pair to store the error message for us
{
ParentDirectory.eComparison = PairOfFiles.nComparison.Error;
ParentDirectory.sErrorMessage = ex.Message;
}
}
}
/// <summary></summary>
/// <param name=""></param>
private void CopyDirectory(PairOfFiles PairToCopy)
{
if (PairToCopy.eComparison == PairOfFiles.nComparison.DestinationOnly)
{
PairToCopy.eComparison = PairOfFiles.nComparison.Error;
PairToCopy.sErrorMessage = "No source directory to copy at '" + PairToCopy.sRelativePath + "'.";
}
else if (PairToCopy.DestinationDrive.eEncryptionType == Drive.nEncryptionType.DirectoryUnencrypted)
{
DirectoryInfo DirectoryInfoDestination = new DirectoryInfo(PairToCopy.sDestinationPath);
try
{
if (!DirectoryInfoDestination.Exists)
{
DirectoryInfoDestination.Create();
}
}
catch (Exception ex)
{
PairToCopy.eComparison = PairOfFiles.nComparison.Error;
PairToCopy.sErrorMessage = ex.Message;
}
PairToCopy.CopyProperties();
try
{
DirectoryInfoDestination.Attributes = (FileAttributes)PairToCopy.uAttributesSource;
DirectoryInfoDestination.CreationTime = Directory.GetCreationTime(PairToCopy.sSourcePath);
DirectoryInfoDestination.LastAccessTime = Directory.GetLastAccessTime(PairToCopy.sSourcePath);
DirectoryInfoDestination.LastWriteTime = PairToCopy.LastWriteTimeSource;
}
catch { }
PairToCopy.eComparison = PairOfFiles.nComparison.Identical;
_quReturn.Enqueue(new BackgroundMessage(BackgroundMessage.nType.ReportProgress, PairToCopy));
}
else
{
throw new NotImplementedException("File system encryption is not yet implemented.");
}
}
/// <summary></summary>
/// <param name=""></param>
private void DeleteFile(PairOfFiles PairToDelete)
{
if (PairToDelete.eComparison == PairOfFiles.nComparison.DestinationOnly)
{
if (PairToDelete.DestinationDrive.eEncryptionType == Drive.nEncryptionType.DirectoryUnencrypted)
{
try
{
File.Delete(PairToDelete.sDestinationPath);
PairToDelete.eComparison = PairOfFiles.nComparison.Deleted;
}
catch (Exception ex)
{
PairToDelete.eComparison = PairOfFiles.nComparison.Error;
PairToDelete.sErrorMessage = ex.Message;
}
}
}
else
{
PairToDelete.eComparison = PairOfFiles.nComparison.Error;
PairToDelete.sErrorMessage = "Deleting file '" + PairToDelete.sRelativePath + "' is not allowed.";
}
}
/// <summary></summary>
/// <param name=""></param>
private void Skip(PairOfFiles PairToSkip)
{
// PairToSkip.eComparison = PairOfFiles.nComparison.Skipped;
PairToSkip.DestinationDrive.AddPair(PairToSkip);
}
/// <summary></summary>
/// <param name=""></param>
private void CopyFile(PairOfFiles PairToCopy)
{
FileInfo FileInfoDestination;
if (PairToCopy.eComparison == PairOfFiles.nComparison.DestinationOnly)
{
PairToCopy.eComparison = PairOfFiles.nComparison.Error;
PairToCopy.sErrorMessage = "No source file to copy: '" + PairToCopy.sRelativePath + "'.";
}
else if (PairToCopy.DestinationDrive.eEncryptionType == Drive.nEncryptionType.DirectoryUnencrypted)
{
FileInfoDestination = new FileInfo(PairToCopy.sDestinationPath);
try
{
if (PairToCopy.SourceDrive.eEncryptionType == Drive.nEncryptionType.DirectoryUnencrypted)
{
if (PairToCopy.DestinationDrive.kFreeSpace < PairToCopy.kSourceSize)
{
PairToCopy.eComparison = PairOfFiles.nComparison.Error;
PairToCopy.sErrorMessage = "Zu wenig Speicherplatz auf dem Ziellaufwerk.";
}
else
{
using (FileStream SourceStream = new FileStream(PairToCopy.sSourcePath, FileMode.Open, FileAccess.Read))
{
using (FileStream DestinationStream = new FileStream(PairToCopy.sDestinationPath, FileMode.Create, FileAccess.Write))
CopyWithProgress(SourceStream, DestinationStream);
}
}
}
}
catch (Exception ex)
{
PairToCopy.eComparison = PairOfFiles.nComparison.Error;
PairToCopy.sErrorMessage = ex.Message;
}
if (_eState == nState.Working)
{
if (PairToCopy.eComparison != PairOfFiles.nComparison.Error)
{
PairToCopy.CopyProperties();
try
{
FileInfoDestination.Attributes = (FileAttributes)PairToCopy.uAttributesSource;
FileInfoDestination.CreationTime = PairToCopy.CreationTimeSource;
FileInfoDestination.LastAccessTime = PairToCopy.LastAccessTimeSource;
FileInfoDestination.LastWriteTime = PairToCopy.LastWriteTimeSource;
// synchronize the write time of the containing directory back to its original value
// there is no point of resetting LastAccessTime as it also gets changed by reading access
if (PairToCopy.ParentDirectory != null)
{
Directory.SetLastWriteTime(PairToCopy.ParentDirectory.sDestinationPath, PairToCopy.ParentDirectory.LastWriteTimeDestination);
}
}
catch { }
PairToCopy.eComparison = PairOfFiles.nComparison.Identical;
}
}
else // _eState == nState.CancelRequested
{
try
{
if (FileInfoDestination.Exists)
{
FileInfoDestination.Delete();
}
}
catch (Exception ex)
{
PairToCopy.eComparison = PairOfFiles.nComparison.Error;
PairToCopy.sErrorMessage = ex.Message;
}
PairToCopy.eComparison = PairOfFiles.nComparison.Error;
PairToCopy.sErrorMessage = "Das Kopieren der Datei wurde vom Benutzer abgebrochen.";
}
_quReturn.Enqueue(new BackgroundMessage(BackgroundMessage.nType.ReportProgress, PairToCopy));
}
else
{
throw new NotImplementedException("File system encryption is not yet implemented.");
}
}
/// <summary>A constructor to initialize a <c>new BackgroundMessage</c>.</summary>
/// <param name=""></param>
/// <param name=""></param>
public BackgroundMessage(nType eType, PairOfFiles PairProperty) : this(eType)
{
_PairProperty = PairProperty;
}