/// <summary>
/// Compresses the specified instance.
/// </summary>
/// <param name="instance">The instance.</param>
public static void Compress(this HttpContextBase instance)
{
Invariant.IsNotNull(instance, "instance");
HttpRequestBase httpRequest = instance.Request;
// IE6
if ((httpRequest.Browser.MajorVersion < 7) && httpRequest.Browser.IsBrowser("IE"))
{
return;
}
// No explicit format is specified, so we have to detect the format from the
// accepted mime types.
// Webkit sends wrongly ordered accept types, so we have to identify it
// more info http://www.gethifi.com/blog/webkit-team-admits-accept-header-error
bool isDefectiveBrowser = instance.Request.Browser.IsBrowser("chrome") || instance.Request.Browser.IsBrowser("safari");
string preferedAcceptEncoding = QValueSorter.Sort(httpRequest.AcceptTypes, isDefectiveBrowser).FirstOrDefault();
if (string.IsNullOrEmpty(preferedAcceptEncoding))
{
return;
}
HttpResponseBase httpResponse = instance.Response;
Action <string> compress = encoding =>
{
if (!string.IsNullOrEmpty(httpResponse.RedirectLocation))
{
return;
}
try
{
httpResponse.AppendHeader("Content-encoding", encoding);
httpResponse.Filter = encoding.Equals("deflate") ?
new DeflateStream(httpResponse.Filter, CompressionMode.Compress) :
new GZipStream(httpResponse.Filter, CompressionMode.Compress) as Stream;
}
catch (HttpException)
{
}
};
if (preferedAcceptEncoding.Equals("*", StringComparison.Ordinal) || preferedAcceptEncoding.Equals("gzip", StringComparison.OrdinalIgnoreCase))
{
compress("gzip");
}
else if (preferedAcceptEncoding.Equals("deflate", StringComparison.OrdinalIgnoreCase))
{
compress("deflate");
}
}
public virtual IResponder FindMatching([NotNull] ControllerContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
string action = context.RouteData.ActionName();
// Filter the responders which does not has this action in exclude list.
IEnumerable <IResponder> filtered = Items.Where(r => r.CanRespondToAction(action)).ToList();
string format = context.HttpContext.Request.QueryString[QueryStringFormatParameterName];
IResponder responder = filtered.FirstOrDefault(r => r.CanRespondToFormat(format));
// Found matched responder, no need to go further
if (responder != null)
{
return(responder);
}
// If explicit format is specified but no matching responder exist, do not need to continue
if (!string.IsNullOrWhiteSpace(format))
{
return(null);
}
// No explicit format is specified, so we have to detect the format from the
// accepted mime types.
// Webkit sends wrongly ordered accept types, so we have to identify it
// more info http://www.gethifi.com/blog/webkit-team-admits-accept-header-error
bool isDefectiveBrowser = context.HttpContext.Request.Browser.IsBrowser("chrome") ||
context.HttpContext.Request.Browser.IsBrowser("safari");
IEnumerable <string> mimeTypes = QValueSorter.Sort(context.HttpContext.Request.AcceptTypes, isDefectiveBrowser);
foreach (string mimeType in mimeTypes)
{
string type = mimeType;
responder = filtered.FirstOrDefault(r => r.CanRespondToMimeType(type));
if (responder != null)
{
break;
}
}
return(responder);
}
/// <summary>
/// Compresses the specified instance.
/// </summary>
/// <param name="instance">The instance.</param>
public static void Compress([NotNull] this HttpContextBase instance)
{
Invariant.IsNotNull(instance, "instance");
HttpRequestBase httpRequest = instance.Request;
// IE6
if ((httpRequest.Browser.MajorVersion < 7) && httpRequest.Browser.IsBrowser("IE"))
{
return;
}
string preferedAcceptEncoding = QValueSorter.Sort(httpRequest.Headers["Accept-Encoding"]).FirstOrDefault();
if (string.IsNullOrEmpty(preferedAcceptEncoding))
{
return;
}
HttpResponseBase httpResponse = instance.Response;
Action <string> compress = encoding =>
{
if (!string.IsNullOrEmpty(httpResponse.RedirectLocation))
{
return;
}
try
{
httpResponse.AppendHeader("Content-encoding", encoding);
httpResponse.Filter = encoding.Equals("deflate") ?
new DeflateStream(httpResponse.Filter, CompressionMode.Compress) :
new GZipStream(httpResponse.Filter, CompressionMode.Compress) as Stream;
}
catch (HttpException)
{
}
};
if (preferedAcceptEncoding.Equals("*", StringComparison.Ordinal) || preferedAcceptEncoding.Equals("gzip", StringComparison.OrdinalIgnoreCase))
{
compress("gzip");
}
else if (preferedAcceptEncoding.Equals("deflate", StringComparison.OrdinalIgnoreCase))
{
compress("deflate");
}
}
