/// <summary>
/// Handle text/plain or no content type for string results
/// Handle application/octet-stream for byte[] results
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public override async Task <InputFormatterResult> ReadRequestBodyAsync(InputFormatterContext context)
{
var request = context.HttpContext.Request;
var contentType = context.HttpContext.Request.ContentType;
if (string.IsNullOrEmpty(contentType) || contentType == "text/plain")
{
using (var reader = new StreamReader(request.Body))
{
var content = await reader.ReadToEndAsync();
return(await InputFormatterResult.SuccessAsync(content));
}
}
if (contentType == "application/octet-stream")
{
using (var ms = new MemoryStream(2048))
{
await request.Body.CopyToAsync(ms);
var content = ms.ToArray();
return(await InputFormatterResult.SuccessAsync(content));
}
}
return(await InputFormatterResult.FailureAsync());
}
/// <inheritdoc />
public override Task <InputFormatterResult> ReadRequestBodyAsync(InputFormatterContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var selectedEncoding = SelectCharacterEncoding(context);
if (selectedEncoding == null)
{
var message = Resources.FormatUnsupportedContentType(
context.HttpContext.Request.ContentType);
var exception = new UnsupportedContentTypeException(message);
context.ModelState.AddModelError(context.ModelName, exception, context.Metadata);
return(InputFormatterResult.FailureAsync());
}
return(ReadRequestBodyAsync(context, selectedEncoding));
}
/// <inheritdoc />
public override Task <InputFormatterResult> ReadRequestBodyAsync(
InputFormatterContext context,
Encoding encoding)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (encoding == null)
{
throw new ArgumentNullException(nameof(encoding));
}
var request = context.HttpContext.Request;
using (var streamReader = context.ReaderFactory(request.Body, encoding))
{
using (var jsonReader = new JsonTextReader(streamReader))
{
jsonReader.ArrayPool = _charPool;
jsonReader.CloseInput = false;
var successful = true;
EventHandler <Newtonsoft.Json.Serialization.ErrorEventArgs> errorHandler = (sender, eventArgs) =>
{
successful = false;
var exception = eventArgs.ErrorContext.Error;
// Handle path combinations such as "" + "Property", "Parent" + "Property", or "Parent" + "[12]".
var key = eventArgs.ErrorContext.Path;
if (!string.IsNullOrEmpty(context.ModelName))
{
if (string.IsNullOrEmpty(eventArgs.ErrorContext.Path))
{
key = context.ModelName;
}
else if (eventArgs.ErrorContext.Path[0] == '[')
{
key = context.ModelName + eventArgs.ErrorContext.Path;
}
else
{
key = context.ModelName + "." + eventArgs.ErrorContext.Path;
}
}
var metadata = GetPathMetadata(context.Metadata, eventArgs.ErrorContext.Path);
context.ModelState.TryAddModelError(key, eventArgs.ErrorContext.Error, metadata);
_logger.JsonInputException(eventArgs.ErrorContext.Error);
// Error must always be marked as handled
// Failure to do so can cause the exception to be rethrown at every recursive level and
// overflow the stack for x64 CLR processes
eventArgs.ErrorContext.Handled = true;
};
var type = context.ModelType;
var jsonSerializer = CreateJsonSerializer();
jsonSerializer.Error += errorHandler;
object model;
try
{
model = jsonSerializer.Deserialize(jsonReader, type);
}
finally
{
// Clean up the error handler since CreateJsonSerializer() pools instances.
jsonSerializer.Error -= errorHandler;
ReleaseJsonSerializer(jsonSerializer);
}
if (successful)
{
return(InputFormatterResult.SuccessAsync(model));
}
return(InputFormatterResult.FailureAsync());
}
}
}