/// <summary>
/// Perform a request to the Tus server.
/// </summary>
/// <param name="request">The <see cref="TusHttpRequest"/> to execute.</param>
/// <returns>A <see cref="TusHttpResponse"/> with the response data.</returns>
/// <exception cref="TusException">Throws when the request fails.</exception>
public async Task <TusHttpResponse> PerformRequestAsync(TusHttpRequest request)
{
var segment = request.BodyBytes;
try
{
var webRequest = WebRequest.CreateHttp(request.Url);
webRequest.AutomaticDecompression = DecompressionMethods.GZip;
webRequest.Timeout = Timeout.Infinite;
webRequest.ReadWriteTimeout = Timeout.Infinite;
webRequest.Method = request.Method;
webRequest.KeepAlive = false;
webRequest.Proxy = Proxy;
try
{
webRequest.ServicePoint.Expect100Continue = false;
}
catch (PlatformNotSupportedException)
{
//expected on .net core 2.0 with systemproxy
//fixed by https://github.com/dotnet/corefx/commit/a9e01da6f1b3a0dfbc36d17823a2264e2ec47050
//should work in .net core 2.2
}
//SEND
var buffer = new byte[4096];
var totalBytesWritten = 0L;
webRequest.AllowWriteStreamBuffering = false;
webRequest.ContentLength = segment.Count;
foreach (var header in request.Headers)
{
switch (header.Key)
{
case TusHeaderNames.ContentLength:
webRequest.ContentLength = long.Parse(header.Value);
break;
case TusHeaderNames.ContentType:
webRequest.ContentType = header.Value;
break;
default:
webRequest.Headers.Add(header.Key, header.Value);
break;
}
}
if (request.BodyBytes.Count > 0)
{
var inputStream = new MemoryStream(request.BodyBytes.Array, request.BodyBytes.Offset,
request.BodyBytes.Count);
using (var requestStream = webRequest.GetRequestStream())
{
inputStream.Seek(0, SeekOrigin.Begin);
var bytesWritten = await inputStream.ReadAsync(buffer, 0, buffer.Length, request.CancelToken)
.ConfigureAwait(false);
request.OnUploadProgressed(0, segment.Count);
while (bytesWritten > 0)
{
totalBytesWritten += bytesWritten;
request.OnUploadProgressed(totalBytesWritten, segment.Count);
await requestStream.WriteAsync(buffer, 0, bytesWritten, request.CancelToken)
.ConfigureAwait(false);
bytesWritten = await inputStream.ReadAsync(buffer, 0, buffer.Length, request.CancelToken)
.ConfigureAwait(false);
}
}
}
var response = (HttpWebResponse)await webRequest.GetResponseAsync()
.ConfigureAwait(false);
//contentLength=0 for gzipped responses due to .net bug
long contentLength = Math.Max(response.ContentLength, 0);
buffer = new byte[16 * 1024];
var outputStream = new MemoryStream();
using (var responseStream = response.GetResponseStream())
{
if (responseStream != null)
{
var bytesRead = await responseStream.ReadAsync(buffer, 0, buffer.Length, request.CancelToken)
.ConfigureAwait(false);
request.OnDownloadProgressed(0, contentLength);
var totalBytesRead = 0L;
while (bytesRead > 0)
{
totalBytesRead += bytesRead;
request.OnDownloadProgressed(totalBytesRead, contentLength);
await outputStream.WriteAsync(buffer, 0, bytesRead, request.CancelToken)
.ConfigureAwait(false);
bytesRead = await responseStream.ReadAsync(buffer, 0, buffer.Length, request.CancelToken)
.ConfigureAwait(false);
}
}
}
return(new TusHttpResponse(
response.StatusCode,
response.Headers.AllKeys
.ToDictionary(headerName => headerName, headerName => response.Headers.Get(headerName)),
outputStream.ToArray()));
}
catch (OperationCanceledException cancelEx)
{
throw new TusException(cancelEx);
}
catch (WebException ex)
{
throw new TusException(ex);
}
}
public TusHttpResponse PerformRequest(TusHttpRequest request)
{
try
{
var inputStream = new MemoryStream(request.BodyBytes);
var webRequest = (HttpWebRequest)WebRequest.Create(request.Url);
webRequest.AutomaticDecompression = DecompressionMethods.GZip;
webRequest.Timeout = Timeout.Infinite;
webRequest.ReadWriteTimeout = Timeout.Infinite;
webRequest.Method = request.Method;
webRequest.KeepAlive = false;
webRequest.Proxy = Proxy;
try
{
var currentServicePoint = webRequest.ServicePoint;
currentServicePoint.Expect100Continue = false;
}
catch (PlatformNotSupportedException)
{
//expected on .net core 2.0 with systemproxy
//fixed by https://github.com/dotnet/corefx/commit/a9e01da6f1b3a0dfbc36d17823a2264e2ec47050
//should work in .net core 2.2
}
//SEND
var buffer = new byte[4096];
var totalBytesWritten = 0L;
var contentLength = inputStream.Length;
webRequest.AllowWriteStreamBuffering = false;
webRequest.ContentLength = inputStream.Length;
foreach (var header in request.Headers)
{
switch (header.Key)
{
case TusHeaderNames.ContentLength:
webRequest.ContentLength = long.Parse(header.Value);
break;
case TusHeaderNames.ContentType:
webRequest.ContentType = header.Value;
break;
default:
webRequest.Headers.Add(header.Key, header.Value);
break;
}
}
if (request.BodyBytes.Length > 0)
{
using (var requestStream = webRequest.GetRequestStream())
{
inputStream.Seek(0, SeekOrigin.Begin);
var bytesWritten = inputStream.Read(buffer, 0, buffer.Length);
request.OnUploadProgressed(0, contentLength);
while (bytesWritten > 0)
{
totalBytesWritten += bytesWritten;
request.OnUploadProgressed(totalBytesWritten, contentLength);
requestStream.Write(buffer, 0, bytesWritten);
bytesWritten = inputStream.Read(buffer, 0, buffer.Length);
request.CancelToken.ThrowIfCancellationRequested();
}
}
}
var response = (HttpWebResponse)webRequest.GetResponse();
//contentLength=0 for gzipped responses due to .net bug
contentLength = Math.Max(response.ContentLength, 0);
buffer = new byte[16 * 1024];
var outputStream = new MemoryStream();
if (response.GetResponseStream() is Stream responseStream)
{
using (responseStream)
{
var bytesRead = 0;
var totalBytesRead = 0L;
bytesRead = responseStream.Read(buffer, 0, buffer.Length);
request.OnDownloadProgressed(0, contentLength);
while (bytesRead > 0)
{
totalBytesRead += bytesRead;
request.OnDownloadProgressed(totalBytesRead, contentLength);
outputStream.Write(buffer, 0, bytesRead);
bytesRead = responseStream.Read(buffer, 0, buffer.Length);
request.CancelToken.ThrowIfCancellationRequested();
}
}
}
var resp = new TusHttpResponse(response.StatusCode, outputStream.ToArray());
foreach (string headerName in response.Headers.Keys)
{
resp.AddHeader(headerName, response.Headers[headerName]);
}
return(resp);
}
catch (OperationCanceledException cancelEx)
{
throw new TusException(cancelEx);
}
catch (WebException ex)
{
throw new TusException(ex);
}
}