/// <inheritdoc />
public async Task BindModelAsync(ModelBindingContext bindingContext)
{
if (bindingContext == null)
{
throw new ArgumentNullException(nameof(bindingContext));
}
// Special logic for body, treat the model name as string.Empty for the top level
// object, but allow an override via BinderModelName. The purpose of this is to try
// and be similar to the behavior for POCOs bound via traditional model binding.
string modelBindingKey;
if (bindingContext.IsTopLevelObject)
{
modelBindingKey = bindingContext.BinderModelName ?? string.Empty;
}
else
{
modelBindingKey = bindingContext.ModelName;
}
var httpContext = bindingContext.HttpContext;
var formatterContext = new InputFormatterContext(
httpContext,
modelBindingKey,
bindingContext.ModelState,
bindingContext.ModelMetadata,
_readerFactory);
var formatter = (IInputFormatter)null;
for (var i = 0; i < _formatters.Count; i++)
{
if (_formatters[i].CanRead(formatterContext))
{
formatter = _formatters[i];
break;
}
}
if (formatter == null)
{
var message = Resources.FormatUnsupportedContentType(httpContext.Request.ContentType);
var exception = new UnsupportedContentTypeException(message);
bindingContext.ModelState.AddModelError(modelBindingKey, exception, bindingContext.ModelMetadata);
return;
}
try
{
var previousCount = bindingContext.ModelState.ErrorCount;
var result = await formatter.ReadAsync(formatterContext);
var model = result.Model;
if (result.HasError)
{
// Formatter encountered an error. Do not use the model it returned.
return;
}
bindingContext.Result = ModelBindingResult.Success(model);
return;
}
catch (Exception ex)
{
bindingContext.ModelState.AddModelError(modelBindingKey, ex, bindingContext.ModelMetadata);
return;
}
}
/// <inheritdoc />
public async Task BindModelAsync(ModelBindingContext bindingContext)
{
if (bindingContext == null)
{
throw new ArgumentNullException(nameof(bindingContext));
}
// Special logic for body, treat the model name as string.Empty for the top level
// object, but allow an override via BinderModelName. The purpose of this is to try
// and be similar to the behavior for POCOs bound via traditional model binding.
string modelBindingKey;
if (bindingContext.IsTopLevelObject)
{
modelBindingKey = bindingContext.BinderModelName ?? string.Empty;
}
else
{
modelBindingKey = bindingContext.ModelName;
}
var httpContext = bindingContext.OperationBindingContext.HttpContext;
var formatterContext = new InputFormatterContext(
httpContext,
modelBindingKey,
bindingContext.ModelState,
bindingContext.ModelMetadata,
_readerFactory);
var formatters = bindingContext.OperationBindingContext.InputFormatters;
var formatter = formatters.FirstOrDefault(f => f.CanRead(formatterContext));
if (formatter == null)
{
var message = Resources.FormatUnsupportedContentType(
bindingContext.OperationBindingContext.HttpContext.Request.ContentType);
var exception = new UnsupportedContentTypeException(message);
bindingContext.ModelState.AddModelError(modelBindingKey, exception, bindingContext.ModelMetadata);
// This model binder is the only handler for the Body binding source and it cannot run twice. Always
// tell the model binding system to skip other model binders and never to fall back i.e. indicate a
// fatal error.
bindingContext.Result = ModelBindingResult.Failed(modelBindingKey);
return;
}
try
{
var previousCount = bindingContext.ModelState.ErrorCount;
var result = await formatter.ReadAsync(formatterContext);
var model = result.Model;
if (result.HasError)
{
// Formatter encountered an error. Do not use the model it returned. As above, tell the model
// binding system to skip other model binders and never to fall back.
bindingContext.Result = ModelBindingResult.Failed(modelBindingKey);
return;
}
bindingContext.Result = ModelBindingResult.Success(modelBindingKey, model);
return;
}
catch (Exception ex)
{
bindingContext.ModelState.AddModelError(modelBindingKey, ex, bindingContext.ModelMetadata);
// This model binder is the only handler for the Body binding source and it cannot run twice. Always
// tell the model binding system to skip other model binders and never to fall back i.e. indicate a
// fatal error.
bindingContext.Result = ModelBindingResult.Failed(modelBindingKey);
return;
}
}
/// <inheritdoc />
public async Task BindModelAsync(ModelBindingContext bindingContext)
{
if (bindingContext == null)
{
throw new ArgumentNullException(nameof(bindingContext));
}
// Special logic for body, treat the model name as string.Empty for the top level
// object, but allow an override via BinderModelName. The purpose of this is to try
// and be similar to the behavior for POCOs bound via traditional model binding.
string modelBindingKey;
if (bindingContext.IsTopLevelObject)
{
modelBindingKey = bindingContext.BinderModelName ?? string.Empty;
}
else
{
modelBindingKey = bindingContext.ModelName;
}
var httpContext = bindingContext.OperationBindingContext.HttpContext;
var formatterContext = new InputFormatterContext(
httpContext,
modelBindingKey,
bindingContext.ModelState,
bindingContext.ModelMetadata,
_readerFactory);
var formatters = bindingContext.OperationBindingContext.InputFormatters;
var formatter = formatters.FirstOrDefault(f => f.CanRead(formatterContext));
if (formatter == null)
{
var message = Resources.FormatUnsupportedContentType(
bindingContext.OperationBindingContext.HttpContext.Request.ContentType);
var exception = new UnsupportedContentTypeException(message);
bindingContext.ModelState.AddModelError(modelBindingKey, exception, bindingContext.ModelMetadata);
// This model binder is the only handler for the Body binding source and it cannot run twice. Always
// tell the model binding system to skip other model binders and never to fall back i.e. indicate a
// fatal error.
bindingContext.Result = ModelBindingResult.Failed(modelBindingKey);
return;
}
try
{
var previousCount = bindingContext.ModelState.ErrorCount;
var result = await formatter.ReadAsync(formatterContext);
var model = result.Model;
if (result.HasError)
{
// Formatter encountered an error. Do not use the model it returned. As above, tell the model
// binding system to skip other model binders and never to fall back.
bindingContext.Result = ModelBindingResult.Failed(modelBindingKey);
return;
}
bindingContext.Result = ModelBindingResult.Success(modelBindingKey, model);
return;
}
catch (Exception ex)
{
bindingContext.ModelState.AddModelError(modelBindingKey, ex, bindingContext.ModelMetadata);
// This model binder is the only handler for the Body binding source and it cannot run twice. Always
// tell the model binding system to skip other model binders and never to fall back i.e. indicate a
// fatal error.
bindingContext.Result = ModelBindingResult.Failed(modelBindingKey);
return;
}
}
/// <inheritdoc />
public async Task BindModelAsync(ModelBindingContext bindingContext)
{
if (bindingContext == null)
{
throw new ArgumentNullException(nameof(bindingContext));
}
// Special logic for body, treat the model name as string.Empty for the top level
// object, but allow an override via BinderModelName. The purpose of this is to try
// and be similar to the behavior for POCOs bound via traditional model binding.
string modelBindingKey;
if (bindingContext.IsTopLevelObject)
{
modelBindingKey = bindingContext.BinderModelName ?? string.Empty;
}
else
{
modelBindingKey = bindingContext.ModelName;
}
var httpContext = bindingContext.HttpContext;
var allowEmptyInputInModelBinding = _options?.AllowEmptyInputInBodyModelBinding == true;
var formatterContext = new InputFormatterContext(
httpContext,
modelBindingKey,
bindingContext.ModelState,
bindingContext.ModelMetadata,
_readerFactory,
allowEmptyInputInModelBinding);
var formatter = (IInputFormatter)null;
for (var i = 0; i < _formatters.Count; i++)
{
if (_formatters[i].CanRead(formatterContext))
{
formatter = _formatters[i];
_logger?.InputFormatterSelected(formatter, formatterContext);
break;
}
else
{
_logger?.InputFormatterRejected(_formatters[i], formatterContext);
}
}
if (formatter == null)
{
_logger?.NoInputFormatterSelected(formatterContext);
var message = Resources.FormatUnsupportedContentType(httpContext.Request.ContentType);
var exception = new UnsupportedContentTypeException(message);
bindingContext.ModelState.AddModelError(modelBindingKey, exception, bindingContext.ModelMetadata);
return;
}
try
{
var result = await formatter.ReadAsync(formatterContext);
var model = result.Model;
if (result.HasError)
{
// Formatter encountered an error. Do not use the model it returned.
return;
}
if (result.IsModelSet)
{
bindingContext.Result = ModelBindingResult.Success(model);
}
else
{
// If the input formatter gives a "no value" result, that's always a model state error,
// because BodyModelBinder implicitly regards input as being required for model binding.
// If instead the input formatter wants to treat the input as optional, it must do so by
// returning InputFormatterResult.Success(defaultForModelType), because input formatters
// are responsible for choosing a default value for the model type.
var message = bindingContext
.ModelMetadata
.ModelBindingMessageProvider
.MissingRequestBodyRequiredValueAccessor();
bindingContext.ModelState.AddModelError(modelBindingKey, message);
}
}
catch (Exception exception) when(exception is InputFormatterException || ShouldHandleException(formatter))
{
bindingContext.ModelState.AddModelError(modelBindingKey, exception, bindingContext.ModelMetadata);
}
}