private void ThrowIfMoreThan5MB(CefUrlRequest request, long total)
{
if (total > 5 * 1024 * 1024 && !IgnoreSize)
{
throw new OperationCanceledException("The file size more than 5 MB.");
}
}
protected override void OnRequestComplete(CefUrlRequest request)
{
logic.OnRequestComplete(request.RequestStatus switch {
CefUrlRequestStatus.Success => Success,
CefUrlRequestStatus.Failed => Failed,
_ => Unknown
});
/// <summary>
/// Notifies that the request has completed.
/// </summary>
/// <param name="request">The associated <see cref="CefUrlRequest"/>.</param>
/// <remarks>
/// Use the <see cref="CefUrlRequest.RequestStatus"/> to determine
/// if the request was successful or not.
/// </remarks>
protected internal override void OnRequestComplete(CefUrlRequest request)
{
if (_stream != null)
{
try
{
_stream.Flush();
if (_stream.CanSeek)
{
_stream.Seek(0, SeekOrigin.Begin);
}
}
catch (IOException ioe)
{
SetException(ioe);
}
}
_request = request.Request;
_response = request.Response;
_requestStatus = request.RequestStatus;
this.RequestError = request.RequestError;
this.ResponseWasCached = request.ResponseWasCached();
IsCompleted = true;
RequestOperation op = Volatile.Read(ref _activeOperation);
if (op is null || op.continuation is null)
{
return;
}
ThreadPool.QueueUserWorkItem(cont => ((Action)cont)(), op.continuation);
}
protected override void OnDownloadProgress(CefUrlRequest request, long current, long total)
{
try
{
ThrowIfMoreThan5MB(request, total);
base.OnDownloadProgress(request, current, total);
}
catch (Exception e)
{
SetException(e);
request.Cancel();
}
}
protected override void OnDownloadData(CefUrlRequest request, IntPtr data, long dataLength)
{
_total += dataLength;
try
{
ThrowIfMoreThan5MB(request, _total);
base.OnDownloadData(request, data, dataLength);
}
catch (Exception e)
{
SetException(e);
request.Cancel();
}
}
/// <summary>
/// Notifies about a download progress.
/// </summary>
/// <param name="request">The associated <see cref="CefUrlRequest"/>.</param>
/// <param name="current">The number of bytes received up to the call.</param>
/// <param name="total">The expected total size of the response (or -1 if not determined).</param>
protected internal override void OnDownloadProgress(CefUrlRequest request, long current, long total)
{
try
{
if (_stream is MemoryStream mem && mem.Capacity < total)
{
mem.Capacity = (int)total;
}
}
catch (Exception e)
{
SetException(e);
request.Cancel();
}
}
/// <summary>
/// Called when some part of the response is read. This function will not be called if the
/// <see cref="CefUrlRequestFlags.NoDownloadData"/> flag is set on the request.
/// </summary>
/// <param name="request">The associated <see cref="CefUrlRequest"/>.</param>
/// <param name="data">The pointer to the buffer that contains the current bytes received since the last call.</param>
/// <param name="dataLength">The size of the data buffer in bytes.</param>
protected internal override void OnDownloadData(CefUrlRequest request, IntPtr data, long dataLength)
{
try
{
if (_stream is null)
{
_stream = CreateResourceStream((int)dataLength);
if (_stream is null)
{
request.Cancel();
return;
}
}
if (_stream is MemoryStream mem)
{
long startPos = _stream.Position;
long endPos = startPos + dataLength;
if (endPos < mem.Capacity)
{
Marshal.Copy(data, mem.GetBuffer(), (int)startPos, (int)dataLength);
mem.SetLength(endPos);
mem.Position = endPos;
return;
}
}
var buffer = new byte[dataLength];
Marshal.Copy(data, buffer, 0, buffer.Length);
_stream.Write(buffer, 0, buffer.Length);
}
catch (Exception e)
{
SetException(e);
request.Cancel();
}
}
public override void OnDownloadData(CefUrlRequest request, IntPtr data, long dataLength)
{
_implementation.OnDownloadData(request, data, dataLength);
}
public override void OnDownloadProgress(CefUrlRequest request, long current, long total)
{
_implementation.OnDownloadProgress(request, current, total);
}
public override void OnRequestComplete(CefUrlRequest request)
{
_implementation.OnRequestComplete(request);
}
protected internal unsafe override void OnDownloadData(CefUrlRequest request, IntPtr data, long dataLength)
{
_implementation.OnDownloadData(request, data, dataLength);
}
protected internal unsafe override void OnDownloadProgress(CefUrlRequest request, long current, long total)
{
_implementation.OnDownloadProgress(request, current, total);
}
protected internal unsafe override void OnRequestComplete(CefUrlRequest request)
{
_implementation.OnRequestComplete(request);
}
protected override void OnDownloadData(CefUrlRequest request, Stream data)
{
logic.OnDownloadData(data);
}
