private int ReadOrigEntityBody(byte[] destBuf, int count)
{
// If the upload was cancelled, return a 204 error code which tells the client that it
// "SHOULD NOT change its document view from that which caused the request to be sent" (RFC 2616 10.2.5)
if (UploadState != null && UploadState.Status == UploadStatus.Cancelled)
{
throw new HttpException(204, "Upload cancelled by user");
}
double secsToWait = 0;
if (UploadState != null && Config.Current.MaxUploadRate > 0 &&
UploadState.TimeElapsed != TimeSpan.MinValue)
{
double desiredSecs
= ((double)UploadState.BytesRead) / Config.Current.MaxUploadRate;
secsToWait = Math.Max(0, desiredSecs - UploadState.TimeElapsed.TotalSeconds);
}
// NOTE: if secsToWait = 0, this will simply yield to other threads so that the progress bar
// has a chance to update.
System.Threading.Thread.Sleep((int)(1000 * secsToWait));
int totalRead = 0;
if (origPreloadedBody != null)
{
int read = Math.Min(count, origPreloadedBody.Length - origPreloadedBodyPos);
if (read > 0)
{
Buffer.BlockCopy(origPreloadedBody, origPreloadedBodyPos, destBuf, totalRead, read);
}
origPreloadedBodyPos += read;
if (read < count)
{
origPreloadedBody = null;
}
count -= read;
totalRead += read;
}
if (count > 0)
{
byte[] localBuffer = new byte[count];
int read = OrigWorker.ReadEntityBody(localBuffer, count);
if (Config.Current.DebugDirectory != null)
{
LogEntityBodyStream.Write(localBuffer, 0, read);
LogEntityBodySizesStream.WriteLine(read);
}
if (read > 0)
{
Buffer.BlockCopy(localBuffer, 0, destBuf, totalRead, read);
}
totalRead += read;
}
return(totalRead);
}
internal void ParseMultipart()
{
if (isParsed)
{
return;
}
isParsed = true;
try
{
bool readEntireRequest = ParseOrThrow();
if (!readEntireRequest)
{
// Wait 5 seconds to see if the user cancelled the request.
System.Threading.Thread.Sleep(5000);
// Setting the status to Failed will force a MergeAndSave which
// will change the status to Cancelled if the user cancelled
// the request.
UploadState.Status = UploadStatus.Failed;
// If the user did cancel the request, then stop all further
// processing of the request so that no exceptions are logged.
if (UploadState.Status == UploadStatus.Cancelled)
{
// Make sure that all the files associated
// with a cancelled multi-request upload get disposed.
if (MultiRequestControlID != null)
{
RegisterFilesForDisposal(MultiRequestControlID);
UploadStorage.DisposeAtEndOfRequest(uploadedFile);
}
HttpContext.Current.ApplicationInstance.CompleteRequest();
return;
}
bool isClientConnected = false;
try
{
isClientConnected = OrigWorker.IsClientConnected();
}
catch (Exception)
{
// Mono throws an exception if the client is no longer connected.
}
if (isClientConnected)
{
throw new HttpException(400, String.Format("Data length ({0}) is shorter than Content-Length ({1}) and client is still connected after {2} secs.",
grandTotalBytesRead, origContentLength, Math.Round(UploadState.TimeElapsed.TotalSeconds)));
}
else
{
throw new HttpException(400, String.Format("Client disconnected after receiving {0} of {1} bytes in {2} secs -- user probably cancelled upload.",
grandTotalBytesRead, origContentLength, Math.Round(UploadState.TimeElapsed.TotalSeconds)));
}
}
}
catch (Exception ex)
{
if (UploadState != null)
{
// We need to remember the exception here because the
// FormsAuthenticationHttpModule in ASP.NET 1.1 will eat any exception we throw and
// the UploadHttpModule's RememberError handler will not get called.
this.Exception = ex;
if (ex is UploadException)
{
UploadState.Rejection = (UploadException)ex;
UploadState.Status = UploadStatus.Rejected;
// Wait 5 seconds to give the client a chance to stop the request. If the client
// stops the request, the user will see the original form instead of an error page.
// Regardless, the progress display will show the error so the user knows what went wrong.
System.Threading.Thread.Sleep(5000);
}
else if (UploadState.Status != UploadStatus.Cancelled)
{
UploadState.Failure = ex;
UploadState.Status = UploadStatus.Failed;
}
// If an error occurs during the upload of one file during
// a multi-request upload, make sure that all the files associated
// with that upload get disposed.
if (MultiRequestControlID != null)
{
RegisterFilesForDisposal(MultiRequestControlID);
UploadStorage.DisposeAtEndOfRequest(uploadedFile);
}
}
try
{
byte[] buffer = new byte[4096];
while (0 < OrigWorker.ReadEntityBody(buffer, buffer.Length))
{
; // Ignore the remaining body
}
}
catch (Exception)
{
// Ignore any errors that occur in the process.
}
log.Error("Rethrowing exception", ex);
throw;
}
finally
{
if (fileStream != null)
{
fileStream.Close();
}
if (preloadedEntityBodyStream != null)
{
preloadedEntityBodyStream.Close();
}
if (LogEntityBodyStream != null)
{
LogEntityBodyStream.Close();
}
if (LogEntityBodySizesStream != null)
{
LogEntityBodySizesStream.Close();
}
}
}
