/// <summary>
/// Método acionado quando os cabeçalhos da resposta forem recebidos.
/// </summary>
/// <param name="e"></param>
protected virtual void OnResponseHeadersReceived(WebClientResponseHeadersReceivedEventArgs e)
{
if (ResponseHeadersReceived != null)
{
ResponseHeadersReceived(this, e);
}
}
/// <summary>
/// Recupera o resultado da requisição.
/// </summary>
/// <param name="response"></param>
/// <returns></returns>
private RequestResult GetRequestResult(WebResponse response)
{
if (response != null)
{
var webResponse = response as HttpWebResponse;
var args = new WebClientResponseHeadersReceivedEventArgs(webResponse);
OnResponseHeadersReceived(args);
var responseStream = new System.IO.MemoryStream();
if (!args.Cancel)
{
var buffer = new byte[1024];
var read = 0;
var contentLength = webResponse.ContentLength;
if (string.Compare(webResponse.ContentEncoding, "gzip", true) == 0)
{
using (var stream = new System.IO.Compression.GZipStream(response.GetResponseStream(), System.IO.Compression.CompressionMode.Decompress))
while ((read = stream.Read(buffer, 0, buffer.Length)) > 0)
{
responseStream.Write(buffer, 0, read);
OnResponseProgressChanged(contentLength, read);
}
}
else if (string.Compare(webResponse.ContentEncoding, "deflate", true) == 0)
{
using (var stream = new System.IO.Compression.DeflateStream(response.GetResponseStream(), System.IO.Compression.CompressionMode.Decompress))
while ((read = stream.Read(buffer, 0, buffer.Length)) > 0)
{
responseStream.Write(buffer, 0, read);
OnResponseProgressChanged(contentLength, read);
}
}
else
{
using (var stream = response.GetResponseStream())
while ((read = stream.Read(buffer, 0, buffer.Length)) > 0)
{
responseStream.Write(buffer, 0, read);
OnResponseProgressChanged(contentLength, read);
}
}
responseStream.Seek(0, System.IO.SeekOrigin.Begin);
}
System.Text.Encoding encoding = null;
try
{
if (webResponse.CharacterSet != null && webResponse.CharacterSet != "")
{
encoding = System.Text.Encoding.GetEncoding(webResponse.CharacterSet);
}
}
catch
{
}
return(new RequestResult(webResponse, webResponse != null ? webResponse.StatusCode : HttpStatusCode.BadRequest, webResponse != null ? webResponse.StatusDescription : "Bad Request", encoding ?? System.Text.Encoding.Default, responseStream));
}
else
{
return(new RequestResult(null, HttpStatusCode.BadRequest, "Bad Request", System.Text.Encoding.Default, null));
}
}
/// <summary>
/// Método acionado quando os cabeçalhos da requisição forem recebidos.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ClientResponseHeadersReceived(object sender, WebClientResponseHeadersReceivedEventArgs e)
{
if (e.Response.StatusCode == System.Net.HttpStatusCode.OK)
{
ReadyState = XMLHttpRequestReadyState.HeadersReceived;
}
if (ReadyState == XMLHttpRequestReadyState.HeadersReceived)
{
ReadyState = XMLHttpRequestReadyState.Loading;
}
}
