public static bool BackupFile(BackupData dat, DriveBackupData drive)
{
try
{
string pathDir = drive.defaultBackupLocation + dat.path.Substring(2) + "\\" + dat.filename + "\\";
DirectoryInfo inf = Directory.CreateDirectory(pathDir);
//Debug.WriteLine(inf.FullName);
string safeTime = GetSafeTime(DateTime.Now);
byte[] buffer = new byte[16 * 4096];
int inBuffer;
long bytesRead = 0;
long totalBytes;
using (var inputStream = new FileStream(dat.path + "\\" + dat.filename, FileMode.Open, FileAccess.Read, FileShare.None, buffer.Length * 2))
using (var outputStream = File.Create(pathDir + safeTime + ".filesync"))
{
long fileSize = inputStream.Length;
CompressionLevel compMode = fileSize < COMPRESSION_BYTE_MIN ? CompressionLevel.NoCompression : CompressionLevel.Optimal;
Debug.WriteLineIf(compMode == CompressionLevel.NoCompression, "NOCOMPRESSION: " + fileSize);
using (GZipStream zipStream = new GZipStream(outputStream, compMode))
{
totalBytes = inputStream.Length;
while ((inBuffer = inputStream.Read(buffer, 0, buffer.Length)) > 0)
{
if (Program.TERMINATE_BACKUP)
{
zipStream.Close();
return(false);
}
bytesRead += inBuffer;
BACKUP_PROGRESS_CURRENTFILE = (int)((bytesRead * 100) / totalBytes);
zipStream.Write(buffer, 0, inBuffer);
}
zipStream.Close();
File.WriteAllBytes(pathDir + safeTime + ".filesync" + ".hash", BitConverter.GetBytes(dat.fileHash));
}
}
return(true);
}
catch (FileNotFoundException e)
{
Program.ThrowErrorMessage(e);
return(false);
}
catch (DirectoryNotFoundException e)
{
Program.ThrowErrorMessage(e);
return(false);
}
catch (IOException e)
{
Program.ThrowErrorMessage(e);
return(false);
}
}
public static FileInfo FindCorrespondingFile(BackupData dat, DriveBackupData drive)
{
string pathDir = drive.defaultBackupLocation + dat.path.Substring(2) + "\\" + dat.filename + "\\";
DirectoryInfo dir = new DirectoryInfo(pathDir);
if (dir.Exists == false)
{
Debug.WriteLine("FIND: NO DIR");
return(null);
}
var files = dir.EnumerateFiles().Where(x => x.Extension == ".filesync").OrderByDescending(x => x.LastWriteTime.Ticks).ToList();
foreach (var file in files)
{
Debug.WriteLine("FIND: " + file.FullName);
}
return(files.FirstOrDefault());
}
private List <BackupData> GetBackupData(DirectoryInfo dir, List <BackupData> dat)
{
if (dat == null)
{
dat = new List <BackupData>();
}
if (Program.TERMINATE_BACKUP)
{
Program.BACKUP_STATE = "Terminated";
return(new List <BackupData>());
}
try
{
FileInfo[] files = dir.GetFiles();
totalItems += files.Length;
foreach (FileInfo file in files)
{
Program.BACKUP_FILE = file.FullName;
if (Program.TERMINATE_BACKUP)
{
Program.BACKUP_STATE = "Terminated";
return(new List <BackupData>());
}
BackupData backup = new BackupData();
bool sizeDiff = false;
totalCopySize += file.Length;
backup.filename = file.Name;
backup.path = file.DirectoryName;
backup.length = file.Length;
FileInfo corr = BackupUtil.FindCorrespondingFile(backup, driveData);
backup.fileHash = BackupUtil.ComputeHash(file);
if (!sizeDiff && corr != null && corr.Exists)
{
backup.backupHash = BackupUtil.FindUncompressedHash(corr);
}
scannedItems++;
Program.BACKUP_PROGRESS = (scannedItems * 100) / totalItems;
dat.Add(backup);
Program.BACKUP_STATE = "Collecting file data... (" + dat.Count + ")";
}
} catch (System.UnauthorizedAccessException)
{
}
try
{
DirectoryInfo[] dirs = dir.GetDirectories();
totalItems += dirs.Length;
foreach (DirectoryInfo val in dirs)
{
if (Program.TERMINATE_BACKUP)
{
Program.BACKUP_STATE = "Terminated";
return(new List <BackupData>());
}
if (val.Name == "__filesync")
{
continue;
}
scannedItems++;
Program.BACKUP_PROGRESS = (scannedItems * 100) / totalItems;
dat = GetBackupData(val, dat);
}
} catch (System.UnauthorizedAccessException)
{
}
return(dat);
}