/// <summary>Gets the acceptable formatter.</summary>
/// <param name="acceptHeader">The accept header.</param>
/// <param name="objType">Type of the object.</param>
/// <param name="formatterType">Type of the formatter.</param>
/// <param name="writeableFormatters">The overriding formatters.</param>
/// <param name="writeableMediaTypes">The writeable media types.</param>
/// <returns></returns>
public virtual Task <IDeepSleepMediaSerializer> GetAcceptableFormatter(
AcceptHeader acceptHeader,
Type objType,
out string formatterType,
IList <IDeepSleepMediaSerializer> writeableFormatters = null,
IList <string> writeableMediaTypes = null)
{
formatterType = string.Empty;
IDeepSleepMediaSerializer formatter = null;
foreach (var mediaHeader in acceptHeader.Values.Where(m => m.Quality > 0))
{
formatter = this.Get(
contentType: $"{mediaHeader.Type}/{mediaHeader.SubType}",
objType: objType,
parameters: mediaHeader.ParameterString(),
forRead: false,
overridingFormatters: writeableFormatters,
overridingMediaTypes: writeableMediaTypes,
formatterType: out formatterType);
if (formatter != null)
{
break;
}
}
return(Task.FromResult(formatter));
}
/// <summary>Processes the HTTP request accept.</summary>
/// <param name="context">The context.</param>
/// <param name="contextResolver">The API request context resolver.</param>
/// <param name="formatterFactory">The formatter factory.</param>
/// <returns></returns>
internal static async Task <bool> ProcessHttpRequestAccept(this ApiRequestContext context, IApiRequestContextResolver contextResolver, IDeepSleepMediaSerializerFactory formatterFactory)
{
if (!context.RequestAborted.IsCancellationRequested)
{
if (context.Request != null)
{
var returnType = context.Routing.Route.Location.MethodReturnType;
if (returnType == typeof(void) || returnType == typeof(Task))
{
return(true);
}
var accept = !string.IsNullOrWhiteSpace(context.Request.Accept)
? context.Request.Accept
: AcceptHeader.All();
IDeepSleepMediaSerializer formatter = null;
IList <IDeepSleepMediaSerializer> overridingFormatters = null;
if (context.Configuration.ReadWriteConfiguration?.WriterResolver != null)
{
var overrides = await context.Configuration.ReadWriteConfiguration.WriterResolver(context?.RequestServices).ConfigureAwait(false);
overridingFormatters = overrides?.Formatters;
}
if (formatterFactory != null)
{
formatter = await formatterFactory.GetAcceptableFormatter(
acceptHeader : context.Configuration?.ReadWriteConfiguration?.AcceptHeaderOverride ?? accept,
objType : returnType,
writeableMediaTypes : context.Configuration?.ReadWriteConfiguration?.WriteableMediaTypes,
writeableFormatters : overridingFormatters,
formatterType : out var _).ConfigureAwait(false);
if (formatter == null && context.Configuration?.ReadWriteConfiguration?.AcceptHeaderFallback != null as AcceptHeader)
{
formatter = await formatterFactory.GetAcceptableFormatter(
acceptHeader : context.Configuration?.ReadWriteConfiguration.AcceptHeaderFallback,
objType : returnType,
writeableMediaTypes : context.Configuration?.ReadWriteConfiguration?.WriteableMediaTypes,
writeableFormatters : overridingFormatters,
formatterType : out var _).ConfigureAwait(false);
}
}
if (formatter == null)
{
var formatterTypes = formatterFactory != null
? formatterFactory.GetWriteableTypes(objType : returnType, overridingFormatters : overridingFormatters) ?? new List <string>()
: new DeepSleepMediaSerializerWriterFactory(context.RequestServices).GetWriteableTypes(objType: returnType, overridingFormatters) ?? new List <string>();
var writeableMediaTypes = context.Configuration?.ReadWriteConfiguration?.WriteableMediaTypes ?? formatterTypes ?? new List <string>();
var acceptableTypes = writeableMediaTypes
.Where(w => formatterTypes.Any(f => string.Equals(f, w, System.StringComparison.InvariantCultureIgnoreCase)))
.ToList();
string acceptable = (acceptableTypes != null && acceptableTypes.Count > 0)
? string.Join(", ", acceptableTypes)
: string.Empty;
context.Response.AddHeader("X-Allow-Accept", acceptable);
context.Response.StatusCode = 406;
return(false);
}
}
return(true);
}
return(false);
}
/// <summary>Processes the HTTP request body binding.</summary>
/// <param name="context">The context.</param>
/// <param name="contextResolver">The API request context resolver.</param>
/// <param name="formatterFactory">The formatter factory.</param>
/// <returns></returns>
internal static async Task <bool> ProcessHttpRequestBodyBinding(this ApiRequestContext context, IApiRequestContextResolver contextResolver, IDeepSleepMediaSerializerFactory formatterFactory)
{
if (!context.RequestAborted.IsCancellationRequested)
{
if (context.Request.Method?.In(StringComparison.InvariantCultureIgnoreCase, "post", "patch", "put") ?? false)
{
if (!context.Request.ContentLength.HasValue)
{
if (context.Configuration?.RequestValidation?.RequireContentLengthOnRequestBodyRequests ?? true)
{
context.Response.StatusCode = 411;
return(false);
}
}
if (context.Request.ContentLength > 0 && string.IsNullOrWhiteSpace(context.Request.ContentType))
{
context.Response.StatusCode = 415;
return(false);
}
if (context.Configuration?.RequestValidation?.MaxRequestLength > 0 && context.Request.ContentLength > 0)
{
if (context.Request.ContentLength > context.Configuration.RequestValidation.MaxRequestLength)
{
context.Response.StatusCode = 413;
return(false);
}
}
if (context.Request.ContentLength > 0 && context.Routing?.Route?.Location?.BodyParameterType == null)
{
if (!(context.Configuration?.RequestValidation?.AllowRequestBodyWhenNoModelDefined ?? false))
{
context.Response.StatusCode = 413;
return(false);
}
}
if (context.Routing.Route.Location.BodyParameterType != null && context.Request.ContentLength > 0 && !string.IsNullOrWhiteSpace(context.Request.ContentType))
{
IDeepSleepMediaSerializer formatter = null;
var formatterTypes = context.Configuration?.ReadWriteConfiguration?.ReadableMediaTypes
?? formatterFactory?.GetReadableTypes(objType: context.Routing.Route.Location.BodyParameterType, overridingFormatters: null)
?? new List <string>();
if (formatterFactory != null)
{
formatter = await formatterFactory.GetContentTypeFormatter(
contentTypeHeader : context.Request.ContentType,
objType : context.Routing.Route.Location.BodyParameterType,
formatterType : out var _,
readableMediaTypes : context.Configuration?.ReadWriteConfiguration?.ReadableMediaTypes).ConfigureAwait(false);
}
if (context.Configuration.ReadWriteConfiguration?.ReaderResolver != null)
{
var overrides = await context.Configuration.ReadWriteConfiguration.ReaderResolver(context?.RequestServices).ConfigureAwait(false);
if (overrides?.Formatters != null)
{
formatter = await formatterFactory.GetContentTypeFormatter(
contentTypeHeader : context.Request.ContentType,
objType : context.Routing.Route.Location.BodyParameterType,
formatterType : out var _,
readableFormatters : overrides.Formatters,
readableMediaTypes : context.Configuration?.ReadWriteConfiguration?.ReadableMediaTypes).ConfigureAwait(false);
formatterTypes = overrides.Formatters
.Where(f => f != null)
.Where(f => f.SupportsRead)
.Where(f => f.ReadableMediaTypes != null)
.Where(f => f.CanHandleType(context.Routing.Route.Location.BodyParameterType))
.SelectMany(f => f.ReadableMediaTypes)
.Distinct()
.ToList();
formatterTypes = context.Configuration?.ReadWriteConfiguration?.ReadableMediaTypes ?? formatterTypes ?? new List <string>();
}
else
{
formatterTypes = context.Configuration?.ReadWriteConfiguration?.ReadableMediaTypes ?? new List <string>();
}
}
if (formatter == null)
{
context.Response.StatusCode = 415;
context.Response.AddHeader(
name: "X-Allow-Content-Types",
value: string.Join(", ", formatterTypes),
append: false,
allowMultiple: false);
return(false);
}
Encoding contextTypeEncoding = null;
if (context.Request.ContentType != null as string)
{
if (!string.IsNullOrWhiteSpace(context.Request.ContentType.Charset))
{
try
{
contextTypeEncoding = Encoding.GetEncoding(context.Request.ContentType.Charset);
}
catch { }
}
}
try
{
context.Request.InvocationContext.BodyModel = await formatter.ReadType(
stream : context.Request.Body,
objType : context.Routing.Route.Location.BodyParameterType,
options : new MediaSerializerOptions
{
Culture = context.Request.AcceptCulture,
Encoding = contextTypeEncoding ?? Encoding.UTF8
}).ConfigureAwait(false);
}
catch (Exception ex)
{
context.AddInternalException(ex);
if (ex.GetType().Name.Contains("BadHttpRequestException"))
{
context.Response.StatusCode = 413;
}
else
{
context.AddValidationError(context.Configuration?.ValidationErrorConfiguration?.RequestDeserializationError);
context.Response.StatusCode = 400;
}
return(false);
}
}
}
return(true);
}
return(false);
}
