/// <inheritdoc />
public override Stream GetStream(HttpContent parent, HttpContentHeaders headers)
{
if (MultipartFormDataStreamProviderHelper.IsFileContent(parent, headers))
{
RemoteStreamInfo remoteStreamInfo = GetRemoteStream(parent, headers);
if (remoteStreamInfo == null)
{
throw Error.InvalidOperation(
Properties.Resources.RemoteStreamInfoCannotBeNull,
"GetRemoteStream",
GetType().Name
);
}
FileData.Add(
new MultipartRemoteFileData(
headers,
remoteStreamInfo.Location,
remoteStreamInfo.FileName
)
);
return(remoteStreamInfo.RemoteStream);
}
return(new MemoryStream());
}
/// <summary>
/// Read the non-file contents as form data.
/// </summary>
/// <returns>A <see cref="Task"/> representing the post processing.</returns>
public override Task ExecutePostProcessingAsync()
{
// This method predates support for cancellation, and we need to make sure it is always invoked when
// ExecutePostProcessingAsync is called for compatability.
return(MultipartFormDataStreamProviderHelper.ReadFormDataAsync(Contents, FormData,
_cancellationToken));
}
/// <summary>
/// This body part stream provider examines the headers provided by the MIME multipart parser
/// and decides whether it should return a file stream or a memory stream for the body part to be
/// written to.
/// </summary>
/// <param name="parent">The parent MIME multipart HttpContent instance.</param>
/// <param name="headers">Header fields describing the body part</param>
/// <returns>The <see cref="Stream"/> instance where the message body part is written to.</returns>
public override Stream GetStream(HttpContent parent, HttpContentHeaders headers)
{
if (MultipartFormDataStreamProviderHelper.IsFileContent(parent, headers))
{
return(base.GetStream(parent, headers));
}
return(new MemoryStream());
}