private void TrySetFormFile(string prefix, ProxyModelMetadata modelMetadata, ModelDictionaryResult result, object value)
{
if (modelMetadata.IsNullableValueType)
{
// recall with prefix
TrySetFormFile(prefix, modelMetadata.ElementType, result, value);
return;
}
if (modelMetadata.IsEnumerableType)
{
var enumerable = value as IEnumerable <IFormFile>;
int index = 0;
foreach (var item in enumerable)
{
if (item != null)
{
result.Files.Add($"{prefix}[{index}]", item);
}
index++;
}
return;
}
if (modelMetadata.IsFormFile)
{
result.Files.Add(prefix, (IFormFile)value);
}
}
private void TrySetValueInner(string key, ProxyModelMetadata modelMetadata, ModelDictionaryResult result, object value)
{
var count = modelMetadata.ElementType.PropertiesCount;
var elementProperties = modelMetadata.ElementType.Properties;
for (int i = 0; i < count; i++)
{
var elementModelMetadata = elementProperties[i];
var propertyInfo = elementModelMetadata.PropertyInfo;
if (value is IEnumerable values)
{
var index = 0;
foreach (var v in values)
{
if (v == null)
{
continue;
}
var propKey = $"{key}[{index}]";
var propValue = propertyInfo?.GetValue(v);
ResolveInternal(elementModelMetadata, result, propValue, isTopLevelObject: false, prefix: propKey);
index++;
}
}
}
}
private void ResolveInternal(ProxyModelMetadata modelMetadata, ModelDictionaryResult result, object value, bool isTopLevelObject = false, string prefix = "")
{
var key = isTopLevelObject ? string.Empty : modelMetadata.PropertyName;
if (!string.IsNullOrEmpty(prefix))
{
if (string.IsNullOrEmpty(key))
{
key = prefix;
}
else
{
key = $"{prefix}.{key}";
}
}
if (modelMetadata.IsFormFile || (modelMetadata.IsEnumerableType && modelMetadata.ElementType.IsFormFile))
{
TrySetFormFile(key, modelMetadata, result, value);
return;
}
var dictionary = result.Dictionary;
var count = modelMetadata.PropertiesCount;
if (count == 0)
{
TrySetValue(key, modelMetadata, result, value);
return;
}
for (int i = 0; i < modelMetadata.PropertiesCount; i++)
{
var metadata = modelMetadata.Properties[i];
if (metadata.ContainerType != null)
{
if (value != null)
{
var v = metadata.PropertyInfo.GetValue(value);
if (v != null)
{
ResolveInternal(metadata, result, v, isTopLevelObject: false, prefix: key);
}
}
}
else
{
ResolveInternal(metadata, result, value);
}
}
}
public override void BindContent(ContentModelBindingContext bindingContext)
{
EnsureTemplateResult ensureTemplateResult = EnsureTemplate(bindingContext);
if (ensureTemplateResult.BindingCompleted)
{
return;
}
ModelDictionaryResult result = bindingContext.ModelContentResolver.Resolve(bindingContext.Parameters,
bindingContext.Args,
ensureTemplateResult.ParameterOffset);
bindingContext.TryUpdateUri(result.Dictionary);
}
public string ResolveParameter(ProxyModelMetadata modelMetadata, object value, bool isTopLevelObject, string prefix = "")
{
var result = new ModelDictionaryResult(new Dictionary <string, string>(StringComparer.Ordinal),
new Dictionary <string, IFormFile>(StringComparer.Ordinal));
ResolveInternal(modelMetadata, result, value, isTopLevelObject: isTopLevelObject, prefix: prefix);
if (result.Dictionary.TryGetValue(modelMetadata.PropertyName, out string propValue))
{
return(propValue);
}
else
{
throw new InvalidOperationException($"The parameter does not found in resolver dictionary! " +
$"Name: \"{modelMetadata.PropertyName}\", Type: \"{modelMetadata.ModelType.Name}\"");
}
}
private void TrySetSystemObjectValue(string key,
PropertyInfo propertyInfo,
string propertyName,
Type containerType,
ModelDictionaryResult result,
object value)
{
var objModelMetadata = new ProxyModelMetadata(propertyInfo,
ProxyModelMetadataIdentity.ForProperty(value.GetType(),
propertyName,
containerType));
if (objModelMetadata.IsSimpleType)
{
result.Dictionary.Add(key, Convert.ToString(value));
return;
}
if (objModelMetadata.IsEnumerableType)
{
if (objModelMetadata.ElementType.IsSimpleType)
{
SetSimpleEnumerable(key, result.Dictionary, value);
}
else
{
TrySetValueInner(key, objModelMetadata, result, value);
}
return;
}
// Anonymous object resolver
for (int i = 0; i < objModelMetadata.Properties.Count; i++)
{
var modelMetadata = objModelMetadata.Properties[i];
var v = modelMetadata.PropertyInfo.GetValue(value);
if (v != null)
{
ResolveInternal(modelMetadata, result, v, isTopLevelObject: false, prefix: key);
}
}
}
private void TrySetValue(string prefix, ProxyModelMetadata modelMetadata, ModelDictionaryResult result, object value)
{
var key = prefix;
if (modelMetadata.IsNullableValueType)
{
// recall with prefix
TrySetValue(prefix, modelMetadata.ElementType, result, value);
return;
}
if (modelMetadata.IsSimpleType)
{
result.Dictionary.Add(key, Convert.ToString(value));
return;
}
if (modelMetadata.IsEnumerableType)
{
if (modelMetadata.ElementType.IsSimpleType)
{
SetSimpleEnumerable(key, result.Dictionary, value);
}
else if (modelMetadata.ElementType.IsSystemObject)
{
TrySetSystemObjectValue(key,
modelMetadata.ElementType.PropertyInfo,
modelMetadata.ElementType.PropertyName,
modelMetadata.ContainerType,
result, value);
}
else
{
TrySetValueInner(key, modelMetadata, result, value);
}
return;
}
if (modelMetadata.IsSystemObject)
{
TrySetSystemObjectValue(key, modelMetadata.PropertyInfo, modelMetadata.PropertyName, modelMetadata.ContainerType, result, value);
}
}
protected virtual MultipartFormDataContent GetMultipartFormDataContent(ModelDictionaryResult contentResult)
{
MultipartFormDataContent multipartFormDataContent = new MultipartFormDataContent();
foreach (KeyValuePair <string, string> entry in contentResult.Dictionary)
{
multipartFormDataContent.Add(new StringContent(entry.Value), entry.Key);
}
if (contentResult.Files != null)
{
foreach (KeyValuePair <string, IFormFile> entry in contentResult.Files)
{
AddFile(entry.Key, multipartFormDataContent, entry.Value);
}
}
return(multipartFormDataContent);
}
public override void BindContent(ContentModelBindingContext bindingContext)
{
EnsureTemplateResult ensureTemplateResult = EnsureTemplate(bindingContext);
if (ensureTemplateResult.BindingCompleted)
{
return;
}
var parameterOffset = ensureTemplateResult.ParameterOffset;
ModelDictionaryResult result = bindingContext.ModelContentResolver.Resolve(bindingContext.Parameters,
bindingContext.Args,
parameterOffset,
ensureTemplateResult.IgnoreModelPrefix);
var contentType = bindingContext.ContentType;
if (contentType == ContentType.MultipartFormData)
{
var content = GetMultipartFormDataContent(result);
bindingContext.ContentResult = ContentModelBindingResult.Success(content);
return;
}
if (contentType == ContentType.FormUrlEncoded)
{
var content = GetUrlEncodedContent(result);
bindingContext.ContentResult = ContentModelBindingResult.Success(content);
return;
}
var remainingParameterCount = bindingContext.ArgsLength - parameterOffset;
if (remainingParameterCount <= 0)
{
// all parameters are resolved as Key - Url
return;
}
var segments = new ArraySegment <object>(bindingContext.Args, parameterOffset, remainingParameterCount);
bindingContext.ContentResult = ContentModelBindingResult.Success(SerializeToString(contentType, segments));
}
// Per request parameter context resolver
public ModelDictionaryResult Resolve(List <ProxyModelMetadata> parameters, object[] args, int parameterOffset = 0, bool ignoreModelPrefix = false)
{
var result = new ModelDictionaryResult(new Dictionary <string, string>(StringComparer.Ordinal),
new Dictionary <string, IFormFile>(StringComparer.Ordinal));
for (int i = parameterOffset; i < parameters.Count; i++)
{
var modelMetadata = parameters[i];
var modelPrefix = string.Empty;
if (!ignoreModelPrefix)
{
if (modelMetadata.ContainerType == null && !string.IsNullOrEmpty(modelMetadata.PropertyName))
{
modelPrefix = modelMetadata.PropertyName;
}
}
ResolveInternal(modelMetadata, result, args[i], isTopLevelObject: true, prefix: modelPrefix);
}
return(result);
}
protected virtual FormUrlEncodedContent GetUrlEncodedContent(ModelDictionaryResult contentResult)
{
FormUrlEncodedContent formUrlEncodedContent = new FormUrlEncodedContent(contentResult.Dictionary);
return(formUrlEncodedContent);
}
