private static UInt32 InternalProcessStream(Stream stream, long? maxLength, int? bufferSize)
{
Crc32Processor processor = new Crc32Processor();
byte[] buffer = new byte[bufferSize.GetValueOrDefault(4096)];
long totalBytesRead = 0;
while (true)
{
int bytesRead = stream.Read(buffer, 0, maxLength.HasValue ? (int)Math.Min(buffer.Length, maxLength.Value - totalBytesRead) : buffer.Length);
processor.Process(buffer, 0, bytesRead);
if (maxLength.HasValue)
{
totalBytesRead += bytesRead;
if (totalBytesRead >= maxLength.Value) break;
}
else if (bytesRead == 0)
{
break;
}
}
return processor.Current;
}
public static UInt32 Process(byte[] bytes)
{
Crc32Processor processor = new Crc32Processor();
processor.Process(bytes);
return processor.Current;
}
public static UInt32 Process(byte[] buffer, int startIndex, int length)
{
Crc32Processor processor = new Crc32Processor();
processor.Process(buffer, startIndex, length);
return processor.Current;
}
public void UpdateWithWorker(BackgroundWorker worker)
{
Progress progress1 = new Progress(0, 3);
Progress progress2 = new Progress();
int bytesRead;
byte[] buffer = new byte[4096];
worker.ReportProgress(DisplayProgress1, progress1);
// Download File List
using (WebClient client = new WebClient())
{
worker.ReportProgress(DisplayProgressText1, "Downloading File List ...");
worker.ReportProgress(DisplayProgressText2, String.Empty);
string files;
try
{
files = client.DownloadString(FileListUrl);
}
catch (Exception e)
{
throw new ApplicationException("Could not download file-list.\nDetails: " + e.Message, e);
}
progress1.Increment();
worker.ReportProgress(DisplayProgress1, progress1);
worker.ReportProgress(DisplayProgressText1, "Validating File List ...");
worker.ReportProgress(DisplayProgressText2, String.Empty);
Items.Clear();
StringReader reader = new StringReader(files);
string line = reader.ReadLine();
while (line != null)
{
string[] fragments = line.Split('\t');
UpdateItem item = new UpdateItem(m_RootPath);
if (fragments.Length >= 1)
{
item.FileName = fragments[0];
if (String.Equals(Path.GetFullPath(item.FileName), Path.GetFullPath(Application.ExecutablePath), StringComparison.InvariantCultureIgnoreCase))
{
item.TargetFileName = item.FileName + ".tmp";
SelfUpdateDetected = true;
SelfUpdateItem = item;
}
if (String.IsNullOrEmpty(item.FileName)) continue;
m_Items.Add(item);
}
if (fragments.Length >= 2)
{
item.Hash = fragments[1];
}
line = reader.ReadLine();
}
progress1.Increment();
worker.ReportProgress(DisplayProgress1, progress1);
if (worker.CancellationPending) return;
progress2.Reset(0, Items.Count);
worker.ReportProgress(DisplayProgress2, progress2);
worker.ReportProgress(DisplayProgressText1, "Validating Files ...");
Crc32Processor processor = new Crc32Processor();
foreach (UpdateItem item in Items)
{
if (worker.CancellationPending) return;
worker.ReportProgress(DisplayProgressText2, item.FullName);
if (File.Exists(item.FullName) == false)
{
item.CheckStatus = UpdateCheckStatus.NotExisiting;
item.IsUpdateRequired = true;
}
else
{
using (FileStream fs = File.OpenRead(item.FullName))
{
while (true)
{
bytesRead = fs.Read(buffer, 0, buffer.Length);
processor.Process(buffer, 0, bytesRead);
if (bytesRead != buffer.Length) break;
}
}
if (item.Hash != processor.Current.ToString("X8"))
{
item.CheckStatus = UpdateCheckStatus.HashMismatch;
item.IsUpdateRequired = true;
}
else
{
item.CheckStatus = UpdateCheckStatus.Ok;
}
processor.Reset();
}
progress2.Increment();
worker.ReportProgress(DisplayProgress2, progress2);
}
progress1.Increment();
worker.ReportProgress(DisplayProgress1, progress1);
worker.ReportProgress(DisplayProgressText1, "Downloading Files ...");
foreach (UpdateItem item in Items)
{
if (worker.CancellationPending) return;
if (item.IsUpdateRequired == false) continue;
string fileName = item.FileName;
if (fileName.StartsWith("./")) fileName = fileName.Substring(2);
using (Stream stream = client.OpenRead(WebPath.Combine(BaseUrl, fileName)))
{
// Create Directory If Missing
string directoryName = Path.GetDirectoryName(item.FullName);
if (Directory.Exists(directoryName) == false) Directory.CreateDirectory(directoryName);
using (FileStream outStream = File.Open(m_RootPath + item.TargetFileName, File.Exists(m_RootPath + item.TargetFileName) ? FileMode.Truncate : FileMode.Create, FileAccess.Write, FileShare.None))
{
int contentLength = Int32.Parse(client.ResponseHeaders[HttpResponseHeader.ContentLength]);
progress2.Reset(0, contentLength);
worker.ReportProgress(DisplayProgress2, progress2);
int totalBytesRead = 0;
while (true)
{
worker.ReportProgress(DisplayProgressText2, String.Format("Downloading: {0} - {1:N0}/{2:N0}", fileName, totalBytesRead, contentLength));
bytesRead = stream.Read(buffer, 0, buffer.Length);
outStream.Write(buffer, 0, bytesRead);
totalBytesRead += bytesRead;
progress2.CurrentValue = totalBytesRead;
worker.ReportProgress(DisplayProgress2, progress2);
if (totalBytesRead >= contentLength) break;
}
}
}
// Validating File
if (String.IsNullOrEmpty(item.Hash) == false)
{
progress2.Reset();
worker.ReportProgress(DisplayProgressText2, String.Format("Validating: {0}", fileName));
using (FileStream fs = File.OpenRead(m_RootPath + item.TargetFileName))
{
while (true)
{
bytesRead = fs.Read(buffer, 0, buffer.Length);
processor.Process(buffer, 0, bytesRead);
if (bytesRead == 0) break;
}
}
if (item.Hash != processor.Current.ToString("X8"))
{
throw new ApplicationException("Downloaded file is invalid. Please restart launcher and repatch files.\nFile: " + m_RootPath + item.TargetFileName);
}
processor.Reset();
}
}
// Write Version File
worker.ReportProgress(DisplayProgressText1, "Writing Version File ...");
worker.ReportProgress(DisplayProgressText2, String.Empty);
File.WriteAllText(VersionFileName, m_ServerVersionRawText, Encoding.Default);
m_SuccessfulUpdated = true;
m_CurrentVersionText = m_NewVersionText;
}
}