private string GetAcceptCharset(HttpServerRequest httpRequest, MediaType acceptMediaType)
{
string firstAvailableEncoding = null;
foreach (var requestedCharset in httpRequest.AcceptCharsets)
{
var encoding = EncodingCache.Default.GetEncoding(requestedCharset);
firstAvailableEncoding = requestedCharset;
if (encoding != null)
break;
}
if (string.IsNullOrEmpty(firstAvailableEncoding))
{
if (acceptMediaType == MediaType.JSON)
{
firstAvailableEncoding = Configuration.Default.DefaultJSONCharset;
}
else if (acceptMediaType == MediaType.XML)
{
firstAvailableEncoding = Configuration.Default.DefaultXMLCharset;
}
else
{
throw new NotImplementedException("Accept media type is not supported.");
}
}
return firstAvailableEncoding;
}
private MediaType GetAcceptMediaType(HttpServerRequest httpRequest)
{
var preferredType = httpRequest.AcceptMediaTypes.FirstOrDefault(a => a != MediaType.Unsupported);
if (preferredType == MediaType.Unsupported)
{
preferredType = Configuration.Default.DefaultAcceptType;
}
return preferredType;
}
private MediaType GetContentMediaType(HttpServerRequest httpRequest)
{
if (httpRequest.ContentType.GetValueOrDefault() == MediaType.Unsupported)
{
return Configuration.Default.DefaultContentType;
}
else
{
return httpRequest.ContentType.Value;
}
}
internal RestServerRequest(
HttpServerRequest httpServerRequest,
string acceptCharset,
MediaType acceptMediaType,
Encoding acceptEncoding,
MediaType contentMediaType,
string contentCharset,
Encoding contentEncoding)
{
this.HttpServerRequest = httpServerRequest;
this.AcceptCharset = acceptCharset;
this.AcceptMediaType = acceptMediaType;
this.AcceptEncoding = acceptEncoding;
this.ContentMediaType = contentMediaType;
this.ContentCharset = contentCharset;
this.ContentEncoding = contentEncoding;
}
public RestServerRequest Create(HttpServerRequest httpRequest)
{
var acceptMediaType = GetAcceptMediaType(httpRequest);
var acceptCharset = GetAcceptCharset(httpRequest, acceptMediaType);
var contentMediaType = GetContentMediaType(httpRequest);
var contentCharset = GetContentCharset(httpRequest, contentMediaType);
return new RestServerRequest(
httpRequest,
acceptCharset,
acceptMediaType,
EncodingCache.Default.GetEncoding(acceptCharset),
contentMediaType,
contentCharset,
EncodingCache.Default.GetEncoding(contentCharset)
);
}
private string GetContentCharset(HttpServerRequest httpRequest, MediaType contentMediaType)
{
var requestContentCharset = httpRequest.ContentTypeCharset;
var encoding = EncodingCache.Default.GetEncoding(requestContentCharset);
if (encoding == null)
{
if (contentMediaType == MediaType.JSON)
{
requestContentCharset = Configuration.Default.DefaultJSONCharset;
}
else if (contentMediaType == MediaType.XML)
{
requestContentCharset = Configuration.Default.DefaultXMLCharset;
}
else
{
throw new NotImplementedException("Content media type is not supported.");
}
}
return requestContentCharset;
}
internal abstract Task<HttpServerResponse> HandleRequest(HttpServerRequest request);