/// <inheritdoc/>
public override void SetDefaultContentHeaders(Type type, HttpContentHeaders headers, MediaTypeHeaderValue mediaType)
{
// Determine the content type or let base class handle it.
MediaTypeHeaderValue newMediaType = null;
if (ODataOutputFormatterHelper.TryGetContentHeader(type, mediaType, out newMediaType))
{
headers.ContentType = newMediaType;
}
else
{
// This is the case when a user creates a new ObjectContent<T> passing in a null mediaType
base.SetDefaultContentHeaders(type, headers, mediaType);
}
// Set the character set.
IEnumerable <string> acceptCharsetValues = Request.Headers.AcceptCharset.Select(cs => cs.Value);
string newCharSet = String.Empty;
if (ODataOutputFormatterHelper.TryGetCharSet(headers.ContentType, acceptCharsetValues, out newCharSet))
{
headers.ContentType.CharSet = newCharSet;
}
// Add version header.
headers.TryAddWithoutValidation(
ODataVersionConstraint.ODataServiceVersionHeader,
ODataUtils.ODataVersionToString(ResultHelpers.GetODataResponseVersion(Request)));
// Add Preference-Applied headers
var responseMessage = ODataOutputFormatterHelper.PrepareResponseMessage(
new WebApiRequestMessage(Request),
new WebApiRequestHeaders(Request.Headers),
(services) => ODataMessageWrapperHelper.Create(null, headers, services));
foreach (var header in responseMessage.Headers)
{
if (!headers.Contains(header.Key))
{
headers.TryAddWithoutValidation(header.Key, header.Value);
}
}
}
/// <inheritdoc/>
public override void WriteResponseHeaders(OutputFormatterWriteContext context)
{
if (context == null)
{
throw Error.ArgumentNull("context");
}
Type type = context.ObjectType;
if (type == null)
{
throw Error.ArgumentNull("type");
}
type = TypeHelper.GetTaskInnerTypeOrSelf(type);
HttpRequest request = context.HttpContext.Request;
if (request == null)
{
throw Error.InvalidOperation(SRResources.WriteToStreamAsyncMustHaveRequest);
}
HttpResponse response = context.HttpContext.Response;
response.ContentType = context.ContentType.Value;
MediaTypeHeaderValue contentType = GetContentType(response.Headers[HeaderNames.ContentType].FirstOrDefault());
// Determine the content type.
MediaTypeHeaderValue newMediaType = null;
if (ODataOutputFormatterHelper.TryGetContentHeader(type, contentType, out newMediaType))
{
response.Headers[HeaderNames.ContentType] = new StringValues(newMediaType.ToString());
}
// Set the character set.
MediaTypeHeaderValue currentContentType = GetContentType(response.Headers[HeaderNames.ContentType].FirstOrDefault());
RequestHeaders requestHeader = request.GetTypedHeaders();
if (requestHeader != null && requestHeader.AcceptCharset != null)
{
IEnumerable <string> acceptCharsetValues = requestHeader.AcceptCharset.Select(cs => cs.Value.Value);
string newCharSet = string.Empty;
if (ODataOutputFormatterHelper.TryGetCharSet(currentContentType, acceptCharsetValues, out newCharSet))
{
currentContentType.CharSet = newCharSet;
response.Headers[HeaderNames.ContentType] = new StringValues(currentContentType.ToString());
}
}
// Add version header.
response.Headers[ODataVersionConstraint.ODataServiceVersionHeader] = ODataUtils.ODataVersionToString(ResultHelpers.GetODataResponseVersion(request));
// Add Preference-Applied headers
var responseMessage = ODataOutputFormatterHelper.PrepareResponseMessage(
new WebApiRequestMessage(request),
new WebApiRequestHeaders(request.Headers),
(services) => ODataMessageWrapperHelper.Create(null, response.Headers, services));
foreach (var header in responseMessage.Headers)
{
if (!response.Headers.ContainsKey(header.Key))
{
response.Headers.Add(header.Key, header.Value);
}
}
}
