| public SelectCharacterEncoding ( HttpRequestMessage contentHeaders ) : Encoding | ||
| contentHeaders | HttpRequestMessage | The content headers provided as part of the request or response. |
| return | Encoding | |
/// <summary>
/// Determine the best character encoding for writing the response. First we look
/// for accept-charset headers and if not found then we try to match
/// any charset encoding in the request (in case of PUT, POST, etc.)
/// If no encoding is found then we use the default for the formatter.
/// </summary>
/// <returns>The <see cref="Encoding"/> determined to be the best match.</returns>
protected virtual Encoding SelectResponseCharacterEncoding(HttpRequestMessage request, MediaTypeFormatter formatter)
{
if (request == null)
{
throw Error.ArgumentNull("request");
}
if (formatter == null)
{
throw Error.ArgumentNull("formatter");
}
// If there are any SupportedEncodings then we pick an encoding
if (formatter.SupportedEncodings.Count > 0)
{
// Sort Accept-Charset header values
//IEnumerable<StringWithQualityHeaderValue> sortedAcceptCharsetValues = SortStringWithQualityHeaderValuesByQFactor(request.Headers.AcceptCharset);
// TODO: Fix instead of using Formatter.SelectCharacterEncoding();
IEnumerable<StringWithQualityHeaderValue> sortedAcceptCharsetValues = Enumerable.Empty<StringWithQualityHeaderValue>();
// Check for match based on accept-charset headers
foreach (StringWithQualityHeaderValue acceptCharset in sortedAcceptCharsetValues)
{
foreach (Encoding encoding in formatter.SupportedEncodings)
{
if (encoding != null && acceptCharset.Quality != FormattingUtilities.NoMatch &&
(acceptCharset.Value.Equals(encoding.WebName, StringComparison.OrdinalIgnoreCase) ||
acceptCharset.Value.Equals("*", StringComparison.OrdinalIgnoreCase)))
{
return encoding;
}
}
}
// Check for match based on any request entity body
return formatter.SelectCharacterEncoding(request);
}
return null;
}
