/// <summary>
/// Reads the JSON HTTP request entity body.
/// </summary>
/// <param name="context">The <see cref="ResourceExecutingContext"/>.</param>
/// <returns>
/// A <see cref="Task"/> that on completion provides a <see cref="JObject"/> containing the HTTP request entity
/// body.
/// </returns>
protected virtual async Task <JObject> ReadAsJsonAsync(ResourceExecutingContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var request = context.HttpContext.Request;
if (request.Body == null ||
!request.ContentLength.HasValue ||
request.ContentLength.Value == 0L ||
!HttpMethods.IsPost(request.Method) ||
!WebHookHttpRequestUtilities.IsJson(request))
{
// Other filters will log and return errors about these conditions.
return(null);
}
var modelState = context.ModelState;
var actionContext = new ActionContext(
context.HttpContext,
context.RouteData,
context.ActionDescriptor,
modelState);
var valueProviderFactories = context.ValueProviderFactories;
var valueProvider = await CompositeValueProvider.CreateAsync(actionContext, valueProviderFactories);
var bindingContext = DefaultModelBindingContext.CreateBindingContext(
actionContext,
valueProvider,
_jObjectMetadata,
bindingInfo: null,
modelName: ModelStateRootKey);
// Read request body.
await _bodyModelBinder.BindModelAsync(bindingContext);
if (!bindingContext.ModelState.IsValid)
{
return(null);
}
if (!bindingContext.Result.IsModelSet)
{
throw new InvalidOperationException(Resources.VerifyNotification_ModelBindingFailed);
}
// Success
return((JObject)bindingContext.Result.Model);
}
/// <inheritdoc />
public void OnResourceExecuting(ResourceExecutingContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var request = context.HttpContext.Request;
switch (_requestMetadata.BodyType)
{
case WebHookBodyType.Form:
if (!request.HasFormContentType)
{
context.Result = CreateUnsupportedMediaTypeResult(Resources.VerifyBody_NoFormData);
}
break;
case WebHookBodyType.Json:
if (!WebHookHttpRequestUtilities.IsJson(request))
{
context.Result = CreateUnsupportedMediaTypeResult(Resources.VerifyBody_NoJson);
}
break;
case WebHookBodyType.Xml:
if (!WebHookHttpRequestUtilities.IsXml(request))
{
context.Result = CreateUnsupportedMediaTypeResult(Resources.VerifyBody_NoXml);
}
break;
default:
var message = string.Format(
CultureInfo.CurrentCulture,
Resources.General_InvalidEnumValue,
nameof(WebHookBodyType),
_requestMetadata.BodyType);
throw new InvalidOperationException(message);
}
}
