// We've finished processing a file.
private void FinishedFile(FileListFile file, FileListProcessorStatus status)
{
// Log the result.
FrmLog.Instance.AddLine(" Status: " + status.ToString());
FrmLog.Instance.AddLine();
// Notify the GUI.
OnProgress(file, status, 100, CalculatePercentage(100));
numFilesProcessed++;
}
// Fires the Progress event.
private void OnProgress(FileListFile file, FileListProcessorStatus status, int percentCompleteFile, int percentCompleteTotal)
{
if (Progress != null)
{
// Package our event arguments.
ProgressEventArgs e = new ProgressEventArgs();
e.File = file;
e.Status = status;
e.PercentCompleteFile = percentCompleteFile;
e.PercentCompleteTotal = percentCompleteTotal;
Progress(this, e);
}
}
/// <summary>Start the processor.</summary>
public void Start()
{
if (IsProcessing)
{
return;
}
// Move to the directory of the file verification list.
try {
Environment.CurrentDirectory = new FileInfo(fileList.sourceFile).Directory.FullName;
} catch (Exception ex) {
OnCompletion(ex);
return;
}
numFilesProcessed = 0;
ProgressStream fs = null;
string hash;
System.Security.Cryptography.HashAlgorithm hasher;
try {
foreach (FileListFile f in fileList.filelist)
{
// Start logging the results.
FrmLog.Instance.AddLine(" File: " + f.name);
if (f.sizeSpecified)
{
FrmLog.Instance.AddLine("Documented Size: " + f.size);
}
FrmLog.Instance.AddLine("Documented Hash: " + f.Value.ToUpper(System.Globalization.CultureInfo.InvariantCulture));
// See if we're supposed to ignore this file.
if (f.Ignore)
{
FinishedFile(f, FileListProcessorStatus.Ignored);
continue;
}
// Announce that we're starting on this file.
OnProgress(f, FileListProcessorStatus.InProcess, 0, CalculatePercentage(0));
currentFile = f;
// Open the file.
try {
fs = new ProgressStream(File.OpenRead(f.name), 5);
// If the file isn't the same size, it shouldn't be considered valid.
FrmLog.Instance.AddLine(" Actual Size: " + fs.Length.ToString());
if ((currentFile.sizeSpecified) && (currentFile.size != (ulong)fs.Length))
{
fs.Close();
FinishedFile(f, FileListProcessorStatus.WrongSize);
continue;
}
fs.ProgressUpdate += new ProgressStream.ProgressUpdateEventHandler(this.fs_ProgressUpdate);
} catch (FileNotFoundException) {
FinishedFile(f, FileListProcessorStatus.NotFound);
continue;
} catch (Exception ex) {
if (ex is ThreadAbortException)
{
throw;
}
FinishedFile(f, FileListProcessorStatus.Error);
continue;
}
// Hash the file.
try {
hasher = Algorithm.GetHasherFromType(f.type);
FrmLog.Instance.AddLine(" Hash Algorithm: " + f.type.ToString());
hash = Classless.Hasher.Utilities.ByteToHexadecimal(hasher.ComputeHash(fs)).ToUpper(System.Globalization.CultureInfo.InvariantCulture);
FrmLog.Instance.AddLine("Calculated Hash: " + hash);
} catch (Exception ex) {
if (ex is ThreadAbortException)
{
throw;
}
FinishedFile(f, FileListProcessorStatus.Error);
continue;
} finally {
fs.Close();
}
// Check the hash.
if (f.Value.ToUpper(System.Globalization.CultureInfo.InvariantCulture) == hash)
{
FinishedFile(f, FileListProcessorStatus.Good);
}
else
{
FinishedFile(f, FileListProcessorStatus.Bad);
}
}
} catch (Exception e) {
if (fs != null)
{
fs.Close();
}
OnCompletion(e);
} finally {
isProcessing = false;
}
OnCompletion(null);
}
