/// <summary>
/// Invoke.
/// </summary>
/// <param name="environment"></param>
/// <returns></returns>
public async Task Invoke(IDictionary <string, object> environment)
{
await _next(environment);
var response = new Microsoft.Owin.OwinResponse(environment);
string encoding = response.Headers.Get("Content-Encoding");
if (string.Equals(encoding, "gzip", StringComparison.OrdinalIgnoreCase))
{
response.Body = new System.IO.Compression.GZipStream(response.Body, System.IO.Compression.CompressionMode.Decompress);
}
}
private static Microsoft.Owin.OwinRequest CreateRequest(string url, string method)
{
var uri = new Uri(url);
var request = CreateOwinRequest();
request.Protocol = "HTTP/1.1";
request.Method = method;
var response = new Microsoft.Owin.OwinResponse(request.Environment);
response.Body = new System.IO.MemoryStream();
BuildRequestFromUri(request, uri);
return(request);
}
/// <summary>
/// Invoke.
/// </summary>
/// <param name="environment"></param>
/// <returns></returns>
public async Task Invoke(IDictionary <string, object> environment)
{
await _next(environment);
var request = new Microsoft.Owin.OwinRequest(environment);
var response = new Microsoft.Owin.OwinResponse(environment);
if ((response.StatusCode >= 100 && response.StatusCode <= 199) || response.StatusCode == 204 || response.StatusCode == 304 || request.Method.Equals("HEAD", StringComparison.OrdinalIgnoreCase))
{
response.Body.Close();
response.Body = System.IO.Stream.Null;
}
}
/// <summary>
/// Constrói a url para redirecionamento.
/// </summary>
/// <param name="response"></param>
/// <returns></returns>
private string BuildRedirectUrl(Microsoft.Owin.OwinResponse response)
{
string location = response.Headers.Get("Location");
Uri uri;
if (Uri.TryCreate(location, UriKind.Relative, out uri))
{
var previousRequest = new Microsoft.Owin.OwinRequest(response.Environment);
var uriBuilder = new UriBuilder(previousRequest.Uri);
uriBuilder.Path = location;
return(uriBuilder.ToString());
}
return(location);
}
/// <summary>
/// Invoke.
/// </summary>
/// <param name="environment"></param>
/// <returns></returns>
public async Task Invoke(IDictionary <string, object> environment)
{
await _next(environment);
var response = new Microsoft.Owin.OwinResponse(environment);
if (response.Body == System.IO.Stream.Null)
{
return;
}
string contentLengthRaw = response.Headers.Get("Content-Length");
long contentLength;
if (contentLengthRaw != null && Int64.TryParse(contentLengthRaw, out contentLength))
{
response.Body = new Http.ContentLengthStream(response.Body, contentLength);
}
}
/// <summary>
/// Invoke.
/// </summary>
/// <param name="environment"></param>
/// <returns></returns>
public async Task Invoke(IDictionary <string, object> environment)
{
await _next(environment);
var response = new Microsoft.Owin.OwinResponse(environment);
if (response.Body == System.IO.Stream.Null)
{
return;
}
string connection = response.Headers.Get("Connection");
if (response.Protocol != null && response.Protocol.Equals("HTTP/1.1", StringComparison.OrdinalIgnoreCase) && String.Equals(connection, "Close", StringComparison.OrdinalIgnoreCase))
{
var ms = new System.IO.MemoryStream();
using (response.Body)
await response.Body.CopyToAsync(ms).ConfigureAwait(continueOnCapturedContext: false);
ms.Seek(0, System.IO.SeekOrigin.Begin);
response.Body = ms;
}
}
/// <summary>
/// Invoke.
/// </summary>
/// <param name="environment"></param>
/// <returns></returns>
public async Task Invoke(IDictionary <string, object> environment)
{
int maxRedirects = _maxRedirects;
while (maxRedirects >= 0)
{
await _next(environment);
var response = new Microsoft.Owin.OwinResponse(environment);
if (response.StatusCode == 302 || response.StatusCode == 301)
{
string url = BuildRedirectUrl(response);
environment.Clear();
RequestBuilder.BuildGet(environment, url);
}
else
{
break;
}
maxRedirects--;
}
}
