/// <summary> Retrieves a HTTP header, given a predefined header name from the HttpHeaderFields enumeration. </summary>
/// <remarks> ebrown, 2/10/2011. </remarks>
/// <exception cref="ArgumentNullException"> Thrown when the given request is null. </exception>
/// <exception cref="ArgumentException"> Thrown when the enumeration value passed is not defined or is some sort of bitmask. </exception>
/// <param name="request"> The request. </param>
/// <param name="headerName"> Name of the header. Bitmasks are not accepted. </param>
/// <returns> The value stored in the given header with any "s totally removed, or string.Empty if null / missing / empty / whitespace. </returns>
public static string RetrieveHeader(this HttpRequestBase request, HttpHeaderFields headerName)
{
if (null == request)
{
throw new ArgumentNullException("request");
}
if (!Enum.IsDefined(typeof(HttpHeaderFields), headerName))
{
throw new ArgumentException("passed enumeration value must be a defined value and cannot be a mask");
}
string returnHeader = request.Headers[headerName.ToEnumValueString()];
if (string.IsNullOrWhiteSpace(returnHeader))
{
return(string.Empty);
}
return(returnHeader.Replace("\"", string.Empty));
}
/// <summary> Retrieves a HTTP header, given a predefined header name from the HttpHeaderFields enumeration. </summary>
/// <remarks> ebrown, 2/10/2011. </remarks>
/// <exception cref="ArgumentNullException"> Thrown when the given request is null. </exception>
/// <exception cref="ArgumentException"> Thrown when the enumeration value passed is not defined or is some sort of bitmask. </exception>
/// <param name="request"> The request. </param>
/// <param name="headerName"> Name of the header. Bitmasks are not accepted. </param>
/// <returns> The value stored in the given header with any "s totally removed, or string.Empty if null / missing / empty / whitespace. </returns>
public static string RetrieveHeader(this HttpRequestBase request, HttpHeaderFields headerName)
{
if (null == request) { throw new ArgumentNullException("request"); }
if (!Enum.IsDefined(typeof(HttpHeaderFields), headerName)) { throw new ArgumentException("passed enumeration value must be a defined value and cannot be a mask"); }
string returnHeader = request.Headers[headerName.ToEnumValueString()];
if (string.IsNullOrWhiteSpace(returnHeader))
return string.Empty;
return returnHeader.Replace("\"", string.Empty);
}