private bool ValidateAcceptsSData(HttpHeaderValueCollection <MediaTypeWithQualityHeaderValue> acceptHeader)
{
if (acceptHeader != null && !acceptHeader.Any(x => x.MediaType == ALL_MEDIA_TYPE))
{
bool acceptsJson = acceptHeader.Any(x => x.MediaType == JSON_MEDIA_TYPE);
if (!acceptsJson)
{
return(false);
}
bool acceptsSData = acceptHeader.Any(x => x.MediaType == JSON_MEDIA_TYPE &&
x.Parameters.Any(p => p.Name == SDATA_MEDIA_TYPE_VALUE_VND));
if (!acceptsSData)
{
// does not mention SData check if OData mentioned
bool acceptsOData = acceptHeader.Any(x => x.MediaType == JSON_MEDIA_TYPE &&
x.Parameters.Any(p => p.Name == ODATA_MEDIA_TYPE_VALUE_VND));
if (acceptsOData)
{
// OData JSON Request; i.e. Accept header equals: application/json;odata=[verbose, etc]
return(false);
}
// consumer asked for JSON but did not indicated SData or OData so default is return SData; just continue
}
}
return(true);
}
public Func <Stream, Stream> GetEncoder(
HttpHeaderValueCollection <StringWithQualityHeaderValue> list)
{
if (list != null && list.Count > 0)
{
var headerValue = list.OrderByDescending(e => e.Quality ?? 1.0D)
.Where(e => !e.Quality.HasValue ||
e.Quality.Value > 0.0D)
.FirstOrDefault(e => supported.Keys
.Contains(e.Value, StringComparer.OrdinalIgnoreCase));
// Case 1: We can support what client has asked for
if (headerValue != null)
{
return(GetStreamForSchema(headerValue.Value));
}
// Case 2: Client is okay to accept any thing we support except
// the ones explicitly specified as not preferred by setting q=0
if (list.Any(e => e.Value == "*" &&
(!e.Quality.HasValue || e.Quality.Value > 0.0D)))
{
var encoding = supported.Keys.Where(se =>
!list.Any(e =>
e.Value.Equals(se, StringComparison.OrdinalIgnoreCase) &&
e.Quality.HasValue &&
e.Quality.Value == 0.0D))
.FirstOrDefault();
if (encoding != null)
{
return(GetStreamForSchema(encoding));
}
}
// Case 3: Client specifically refusing identity
if (list.Any(e => e.Value.Equals(IDENTITY, StringComparison.OrdinalIgnoreCase) &&
e.Quality.HasValue && e.Quality.Value == 0.0D))
{
throw new NegotiationFailedException();
}
// Case 4: Client is not willing to accept one of the encodings
// we support and is not willing to accept identity
if (list.Any(e => e.Value == "*" &&
(e.Quality.HasValue || e.Quality.Value == 0.0D)))
{
if (!list.Any(e => e.Value.Equals(IDENTITY, StringComparison.OrdinalIgnoreCase)))
{
throw new NegotiationFailedException();
}
}
}
// Settle for the default, which is no transformation whatsoever
return(null);
}
public bool RequestingAttachment()
{
HttpHeaderValueCollection <MediaTypeWithQualityHeaderValue> incomingMediaTypes = requestMessage.Headers.Accept;
if (!incomingMediaTypes.Any() || incomingMediaTypes.Any(mt => RestUtils.IsJsonMediaType(mt.MediaType)))
{
return(false);
}
return(true);
}
public void ValidateIncomingMediaTypeAsJson()
{
if (AcceptHeaderStrict)
{
HttpHeaderValueCollection <MediaTypeWithQualityHeaderValue> incomingMediaTypes = requestMessage.Headers.Accept;
if (!incomingMediaTypes.Any() || incomingMediaTypes.Any(mt => RestUtils.IsJsonMediaType(mt.MediaType)))
{
return;
}
throw new HttpResponseException(new HttpResponseMessage(HttpStatusCode.NotAcceptable));
}
}
public Func <Stream, Stream> GetEncoder(HttpHeaderValueCollection <StringWithQualityHeaderValue> list)
{
if (list != null && list.Count() > 0)
{
var headerValue = list.OrderByDescending(e => e.Quality ?? 1.0D)
.Where(e => !e.Quality.HasValue ||
e.Quality.Value > 0.0D)
.FirstOrDefault(e => supported.Keys
.Contains(e.Value, StringComparer.OrdinalIgnoreCase));
if (headerValue != null)
{
return(GetStreamForSchema(headerValue.Value));
}
if (list.Any(e => e.Value == "*" &&
(!e.Quality.HasValue || e.Quality.Value > 0.0D)))
{
var encoding = supported.Keys.Where(se =>
!list.Any(e =>
e.Value.Equals(se, StringComparison.OrdinalIgnoreCase) &&
e.Quality.HasValue &&
e.Quality.Value == 0.0D))
.FirstOrDefault();
if (encoding != null)
{
return(GetStreamForSchema(encoding));
}
}
if (list.Any(e => e.Value.Equals(IDENTITY, StringComparison.OrdinalIgnoreCase) &&
e.Quality.HasValue && e.Quality.Value == 0.0D))
{
throw new NegotiationFailedException();
}
// Case 4: Client is not willing to accept one of the encodings
// we support and is not willing to accept identity
if (list.Any(e => e.Value == "*" &&
(e.Quality.HasValue || e.Quality.Value == 0.0D)))
{
if (!list.Any(e => e.Value.Equals(IDENTITY, StringComparison.OrdinalIgnoreCase)))
{
throw new NegotiationFailedException();
}
}
}
return(null);
}
private static bool IsRequestedMediaTypeAccepted(HttpHeaderValueCollection<MediaTypeWithQualityHeaderValue> acceptHeader)
{
return GlobalConfiguration
.Configuration
.Formatters
.Any(formatter => acceptHeader.Any(mediaType => FormatterSuportsMediaType(mediaType, formatter)));
}
internal static Task <HttpResponseMessage> CreateODataBatchResponseAsync(this HttpRequestMessage request, IEnumerable <ODataBatchResponseItem> responses, ODataMessageQuotas messageQuotas)
{
Contract.Assert(request != null);
ODataVersion odataVersion = ResultHelpers.GetODataResponseVersion(request);
IServiceProvider requestContainer = request.GetRequestContainer();
ODataMessageWriterSettings writerSettings =
requestContainer.GetRequiredService <ODataMessageWriterSettings>();
writerSettings.Version = odataVersion;
writerSettings.MessageQuotas = messageQuotas;
HttpHeaderValueCollection <MediaTypeWithQualityHeaderValue> acceptHeaderValues = request.Headers.Accept;
MediaTypeHeaderValue responseContentType = null;
if (!acceptHeaderValues.Any())
{
// In absence of accept, if request was JSON then default response to be JSON.
// Note that, if responseContentType is not set, then it will default to multipart/mixed
// when constructing the BatchContent, so we don't need to handle that case here
if (request.Content != null && request.Content.Headers.Any(h => String.Equals(h.Key, ODataBatchHttpRequestMessageExtensions.ContentType, StringComparison.OrdinalIgnoreCase) &&
h.Value.Any(v => v.IndexOf(ODataBatchHttpRequestMessageExtensions.BatchMediaTypeJson, StringComparison.OrdinalIgnoreCase) > -1)))
{
responseContentType = MediaTypeHeaderValue.Parse(ODataBatchHttpRequestMessageExtensions.BatchMediaTypeJson);
}
}
else if (acceptHeaderValues.Any(
t => t.MediaType.Equals(ODataBatchHttpRequestMessageExtensions.BatchMediaTypeMime, StringComparison.OrdinalIgnoreCase)))
{
responseContentType = MediaTypeHeaderValue.Parse(
String.Format(CultureInfo.InvariantCulture, "multipart/mixed;boundary=batchresponse_{0}",
Guid.NewGuid()));
}
else if (acceptHeaderValues.Any(
t => t.MediaType.Equals(ODataBatchHttpRequestMessageExtensions.BatchMediaTypeJson, StringComparison.OrdinalIgnoreCase)))
{
responseContentType = MediaTypeHeaderValue.Parse(ODataBatchHttpRequestMessageExtensions.BatchMediaTypeJson);
}
HttpResponseMessage response = request.CreateResponse(HttpStatusCode.OK);
response.Content = new ODataBatchContent(responses, requestContainer, responseContentType);
return(Task.FromResult(response));
}
public Func<Stream, Stream> GetEncoder(HttpHeaderValueCollection<StringWithQualityHeaderValue> list)
{
// The following steps will walk you through
// completing the implementation of this method
if (list != null && list.Count > 0)
{
// More code goes here
var headerValue = list.OrderByDescending(e => e.Quality ?? 1.0D).Where(e => !e.Quality.HasValue || e.Quality.Value > 0.0D).FirstOrDefault(e => supported.Keys.Contains(e.Value, StringComparer.OrdinalIgnoreCase));
// Case 1: We can support what client has asked for
if (headerValue != null)
return GetStreamForSchema(headerValue.Value);
// Case 2: Client will accept anything we support except
// the ones explicitly specified as not preferred by setting q=0
if (list.Any(e => e.Value == "*" &&
(!e.Quality.HasValue || e.Quality.Value > 0.0D)))
{
var encoding = supported.Keys.Where(se =>
!list.Any(e =>
e.Value.Equals(se, StringComparison.OrdinalIgnoreCase) &&
e.Quality.HasValue &&
e.Quality.Value == 0.0D))
.FirstOrDefault();
if (encoding != null)
return GetStreamForSchema(encoding);
}
// Case 3: Client specifically refusing identity
if (list.Any(e => e.Value.Equals(IDENTITY, StringComparison.OrdinalIgnoreCase) &&
e.Quality.HasValue && e.Quality.Value == 0.0D))
{
throw new NegotiationFailedException();
}
// Case 4: Client is not willing to accept any of the encodings
// we support and is not willing to accept identity
if (list.Any(e => e.Value == "*" &&
(e.Quality.HasValue || e.Quality.Value == 0.0D)))
{
if (!list.Any(e => e.Value.Equals(IDENTITY, StringComparison.OrdinalIgnoreCase)))
throw new NegotiationFailedException();
}
}
// Settle for the default, which is no transformation whatsoever
return null;
}
internal static HttpHeaderValueCollection <T> AddDistinct <T>(this HttpHeaderValueCollection <T> headers, Func <T, bool> predicate, string value)
where T : class
{
if (!headers.Any(predicate))
{
headers.ParseAdd(value);
}
return(headers);
}
/// <summary>
/// Validates if the current request is from admin tool
/// </summary>
/// <param name="actionContext">context for the http request containing the user agent string.</param>
/// <returns>Boolean value indicating is request from admin tool or not.</returns>
private bool IsRequestFromAdminUserAgent(HttpActionContext actionContext)
{
if (string.IsNullOrWhiteSpace(UnityMvcActivator.AdminToolProductToken))
{
return(false);
}
HttpHeaderValueCollection <ProductInfoHeaderValue> userAgents = actionContext.Request.Headers.UserAgent;
// Note: Check if, product token obtained from the current request matches with configured internal admin/developer tool product token.
return(userAgents != null && userAgents.Any(productInfoHeader => string.Compare(productInfoHeader.Product.Name, UnityMvcActivator.AdminToolProductToken, StringComparison.OrdinalIgnoreCase) == 0));
}
protected override async Task <HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
HttpHeaderValueCollection <StringWithQualityHeaderValue> acceptedLanguages = request.Headers.AcceptLanguage;
if (acceptedLanguages.IsNotNullOrEmpty())
{
StringWithQualityHeaderValue headerValue = acceptedLanguages.OrderByDescending(e => e.Quality ?? 1.0D)
.Where(e => !e.Quality.HasValue || e.Quality.Value > 0.0D)
.FirstOrDefault(e => supportedCultures.Contains(e.Value, StringComparer.OrdinalIgnoreCase));
string culture = null;
// Case 1: We can support what client has asked for
if (headerValue.IsNotNull())
{
culture = headerValue.Value;
}
// Case 2: Client is okay to accept any thing we support except
// the ones explicitly specified as not preferred by setting q=0
else if (acceptedLanguages.Any(e => e.Value == "*" && (!e.Quality.HasValue || e.Quality.Value > 0.0D)))
{
culture = supportedCultures.Where(sc =>
!acceptedLanguages.Any(e =>
e.Value.Equals(sc, StringComparison.OrdinalIgnoreCase) &&
e.Quality.HasValue &&
e.Quality.Value == 0.0D))
.FirstOrDefault();
}
if (culture.IsNotNull())
{
Thread.CurrentThread.CurrentUICulture = CultureInfo.GetCultureInfo(culture);
Thread.CurrentThread.CurrentCulture = Thread.CurrentThread.CurrentUICulture;
}
}
return(await base.SendAsync(request, cancellationToken));
}
public override void OnActionExecuting(HttpActionContext context)
{
HttpRequestMessage request = context.Request;
if (request.Method == HttpMethod.Get)
{
string key = GetKey(request);
HttpHeaderValueCollection <EntityTagHeaderValue> etagsFromClient = request.Headers.IfNoneMatch;
if (etagsFromClient.Count > 0)
{
EntityTagHeaderValue etag = null;
if (etags.TryGetValue(key, out etag) && etagsFromClient.Any(t => t.Tag == etag.Tag))
{
context.Response = new HttpResponseMessage(HttpStatusCode.NotModified);
}
}
}
}
private static bool IsRequestedMediaTypeAccepted(HttpHeaderValueCollection <MediaTypeWithQualityHeaderValue> acceptHeader)
{
return(Enumerable.Any <MediaTypeFormatter>(GlobalConfiguration
.Configuration
.Formatters, formatter => acceptHeader.Any(mediaType => FormatterSuportsMediaType(mediaType, formatter))));
}
private bool IsRequestedMediaTypeAccepted(HttpHeaderValueCollection <MediaTypeWithQualityHeaderValue> acceptHeader)
{
return(configuration
.Formatters
.Any(formatter => acceptHeader.Any(mediaType => FormatterSuportsMediaType(mediaType, formatter))));
}
private bool ValidateAcceptsSData(HttpHeaderValueCollection<MediaTypeWithQualityHeaderValue> acceptHeader)
{
if (acceptHeader != null && !acceptHeader.Any(x => x.MediaType == ALL_MEDIA_TYPE))
{
bool acceptsJson = acceptHeader.Any(x => x.MediaType == JSON_MEDIA_TYPE);
if (!acceptsJson)
{
return false;
}
bool acceptsSData = acceptHeader.Any(x => x.MediaType == JSON_MEDIA_TYPE &&
x.Parameters.Any(p => p.Name == SDATA_MEDIA_TYPE_VALUE_VND));
if (!acceptsSData)
{
// does not mention SData check if OData mentioned
bool acceptsOData = acceptHeader.Any(x => x.MediaType == JSON_MEDIA_TYPE &&
x.Parameters.Any(p => p.Name == ODATA_MEDIA_TYPE_VALUE_VND));
if (acceptsOData)
{
// OData JSON Request; i.e. Accept header equals: application/json;odata=[verbose, etc]
return false;
}
// consumer asked for JSON but did not indicated SData or OData so default is return SData; just continue
}
}
return true;
}
