protected override object GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor)
{
if (parameterDescriptor == null)
{
throw new ArgumentNullException("parameterDescriptor");
}
// Only resolve parameter values if injection is enabled.
var context = (AppScope)ZenCoreDependencyResolver.Current.RequestLifetimeScope;
var value = context.Scope.ResolveOptional(parameterDescriptor.ParameterType);
if (value == null)
{
// Issue #368
// If injection is enabled and the value can't be resolved, fall back to
// the default behavior. Or if injection isn't enabled, fall back.
// Unfortunately we can't do much to pre-determine if model binding will succeed
// because model binding "knows" about a lot of stuff like arrays, certain generic
// collection types, type converters, and other stuff that may or may not fail.
try
{
value = base.GetParameterValue(controllerContext, parameterDescriptor);
}
catch (MissingMethodException)
{
// Don't do anything - this means the default model binder couldn't
// activate a new instance or figure out some other way to model
// bind it.
}
}
return value;
}
public static object GetDefaultValue(ParameterDescriptor param)
{
// If it's a string, giving some value based on the param name
if (param.ParameterType == typeof(string))
{
return String.Format("Some{0}", param.ParameterName);
}
// If it's a number, pick some sample number.
switch (Type.GetTypeCode(param.ParameterType))
{
case TypeCode.Byte:
case TypeCode.SByte:
case TypeCode.UInt16:
case TypeCode.UInt32:
case TypeCode.UInt64:
case TypeCode.Int16:
case TypeCode.Int32:
case TypeCode.Int64:
case TypeCode.Decimal:
case TypeCode.Double:
case TypeCode.Single:
return 7;
}
// For other value types, go with the default value
if (param.ParameterType.IsValueType)
{
return Activator.CreateInstance(param.ParameterType);
}
return null;
}
private static ParameterDescriptor[] LazilyFetchParametersCollection(ActionDescriptor actionDescriptor, MethodInfo methodInfo, ref ParameterDescriptor[] parametersCache)
{
return DescriptorUtil.LazilyFetchOrCreateDescriptors<ParameterInfo, ParameterDescriptor>(
cacheLocation: ref parametersCache,
initializer: methodInfo.GetParameters,
converter: parameterInfo => new ReflectedParameterDescriptor(parameterInfo, actionDescriptor));
}
public static ParameterDescriptor[] GetParameters(ActionDescriptor actionDescriptor, MethodInfo methodInfo, ref ParameterDescriptor[] parametersCache)
{
ParameterDescriptor[] parameters = LazilyFetchParametersCollection(actionDescriptor, methodInfo, ref parametersCache);
// need to clone array so that user modifications aren't accidentally stored
return (ParameterDescriptor[])parameters.Clone();
}
/// <summary>
/// Handles the request.
/// </summary>
/// <param name="queryString">The query string.</param>
/// <param name="queryParams">The query parameters.</param>
/// <param name="actionArgs">The action arguments.</param>
/// <param name="config">The beetle configuration.</param>
/// <param name="request">The request.</param>
/// <param name="actionParameters">The action parameters.</param>
/// <param name="parameters">The parameters.</param>
/// <exception cref="BeetleException">Action must have only one parameter (JsonObject, object or dynamic) to be able called with POST.</exception>
internal static void GetParameters(out string queryString, out NameValueCollection queryParams, out object[] actionArgs,
BeetleConfig config = null, HttpRequest request = null,
ParameterDescriptor[] actionParameters = null, IDictionary<string, object> parameters = null) {
if (config == null)
config = BeetleConfig.Instance;
if (request == null)
request = HttpContext.Current.Request;
if (request.HttpMethod == "POST") {
// supported methods can only have one parameter
// (MVC behavior for beetle must be same as WebApi and WebApi cannot have more than one parameters for POST)
if (actionParameters == null || actionParameters.Length <= 1) {
var hasPrm = actionParameters != null && actionParameters.Length == 1;
object actionArg = null;
// read post data
request.InputStream.Position = 0;
queryString = new StreamReader(request.InputStream).ReadToEnd();
if (request.ContentType.Contains("application/json")) {
if (hasPrm)
actionArg = JsonConvert.DeserializeObject(queryString, config.JsonSerializerSettings) as JObject;
// but now there is no query string parameters, we must populate them manually for beetle queries
// otherwise beetle cannot use query parameters when using post method
var d = JsonConvert.DeserializeObject<Dictionary<string, dynamic>>(queryString);
queryParams = new NameValueCollection();
foreach (var i in d)
queryParams.Add(i.Key, i.Value == null ? string.Empty : i.Value.ToString());
}
else {
var prms = request.Params;
queryParams = prms;
var d = prms.AllKeys.ToDictionary(k => k, k => prms[k]);
if (hasPrm) {
var jsonStr = _javaScriptSerializer.Value.Serialize(d);
actionArg = JsonConvert.DeserializeObject(jsonStr, config.JsonSerializerSettings);
}
}
actionArgs = hasPrm ? new[] { actionArg } : new object[0];
}
else {
queryString = string.Empty;
queryParams = null;
actionArgs = null;
}
}
else {
queryString = request.Url.Query;
if (queryString.StartsWith("?"))
queryString = queryString.Substring(1);
queryString = queryString.Replace(":", "%3A");
queryParams = request.QueryString;
if (actionParameters != null && parameters != null) {
actionArgs = actionParameters
.Select(pd => parameters[pd.ParameterName])
.ToArray();
}
else
actionArgs = null;
}
}
private static ParameterDescriptor[] LazilyFetchParametersCollection(ActionDescriptor actionDescriptor, MethodInfo methodInfo, ref ParameterDescriptor[] parametersCache)
{
// Frequently called, so ensure the delegates remain static
return DescriptorUtil.LazilyFetchOrCreateDescriptors(
cacheLocation: ref parametersCache,
initializer: (CreateDescriptorState state) => state.MethodInfo.GetParameters(),
converter: (ParameterInfo parameterInfo, CreateDescriptorState state) => new ReflectedParameterDescriptor(parameterInfo, state.ActionDescriptor),
state: new CreateDescriptorState() { ActionDescriptor = actionDescriptor, MethodInfo = methodInfo });
}
private Predicate<string> GetPropertyFilter(ParameterDescriptor parameterDescriptor)
{
ParameterBindingInfo bindingInfo = parameterDescriptor.BindingInfo;
var ba = new BindAttribute()
{
Exclude = string.Join(",", bindingInfo.Exclude),
Include = string.Join(",", bindingInfo.Include)
};
return ba.IsPropertyAllowed;
}
protected override object GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor)
{
if (parameterDescriptor.ParameterType == typeof(IPrincipal))
return HttpContext.Current.User;
if (parameterDescriptor.ParameterType == typeof(IUploadedFile))
return new HttpPostedFileUploadedFile(HttpContext.Current.Request.Files[0]);
return base.GetParameterValue(controllerContext, parameterDescriptor);
}
protected override object GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor)
{
if (parameterDescriptor.ParameterType == typeof(IUnitOfWork) ||
parameterDescriptor.ParameterType == typeof(IDbConnection))
{
return null;
}
return base.GetParameterValue(controllerContext, parameterDescriptor);
}
public DirectValueProvider(DirectRequest directRequest, ParameterDescriptor[] parameterDescriptors) {
int paramCount = parameterDescriptors.Length;
Object[] data = directRequest.Data;
DirectMethod directMethod = DirectProvider.GetCurrent().GetMethod(directRequest.Action, directRequest.Method);
bool usesNamedArguments = (directMethod != null && directMethod.UsesNamedArguments);
if (paramCount > 0) {
if (usesNamedArguments) { // named arguments. match params by name
var dataObj = data[0] as JObject;
for (int i = 0; i < paramCount; i++) {
string pName = parameterDescriptors[i].ParameterName;
Type pType = parameterDescriptors[i].ParameterType;
JToken value = dataObj != null ? dataObj.SelectToken(pName) : null;
object rawValue = null;
if (value != null && value.Type != JTokenType.Null && value.Type != JTokenType.Undefined) {
Type vType = value.GetType();
if (vType == typeof(JObject) && pType != typeof(JObject) ||
vType == typeof(JArray) && pType != typeof(JArray)) {
rawValue = JsonConvert.DeserializeObject(value.ToString(), pType);
} else {
rawValue = Convert.ChangeType(value.ToString(), pType);
}
}
string attemptedValue = Convert.ToString(rawValue, CultureInfo.InvariantCulture);
_values.Add(pName, new ValueProviderResult(rawValue, attemptedValue, CultureInfo.InvariantCulture));
}
} else {
for (int i = 0; i < parameterDescriptors.Length; i++) {
object rawValue = data[i];
if (rawValue != null) {
Type vType = rawValue.GetType();
Type pType = parameterDescriptors[i].ParameterType;
// Deserialize only objects and arrays and let MVC handle everything else.
if (vType == typeof(JObject) && pType != typeof(JObject) ||
vType == typeof(JArray) && pType != typeof(JArray)) {
rawValue = JsonConvert.DeserializeObject(rawValue.ToString(), pType);
}
}
string attemptedValue = Convert.ToString(rawValue, CultureInfo.InvariantCulture);
_values.Add(parameterDescriptors[i].ParameterName,
new ValueProviderResult(rawValue, attemptedValue, CultureInfo.InvariantCulture));
}
}
}
}
protected override object GetParameterValue(ControllerContext controllerContext,ParameterDescriptor parameterDescriptor)
{
try
{
controllerContext.RouteData.DataTokens.Add(typeof(ParameterDescriptor).FullName, parameterDescriptor);
return base.GetParameterValue(controllerContext,parameterDescriptor);
}
finally
{
controllerContext.RouteData.DataTokens.Remove(typeof(ParameterDescriptor).FullName);
}
}
protected override object GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor)
{
if (parameterDescriptor == null)
{
throw new ArgumentNullException("parameterDescriptor");
}
// Issue #430
// Model binding to collections (specifically IEnumerable<HttpPostedFileBase>
// as used in multiple file upload scenarios) breaks if you try to
// resolve before allowing default model binding to give it a shot.
// You also can't send in an object that needs to be model bound if
// it's registered in the container because the container will ignore
// the POSTed in values.
//
// Issue #368
// The original solution to issue #368 was to fall back to default
// model binding if the ExtensibleActionInvoker was unable to resolve
// a parameter AND if parameter injection was enabled. You can no longer
// disable parameter injection, and it turns out for issue #430 that
// we need to try model binding first. Unfortunately there's no way
// to determine if default model binding will fail, so we give it
// a shot and handle what we can.
object value = null;
try
{
value = base.GetParameterValue(controllerContext, parameterDescriptor);
}
catch (MissingMethodException)
{
// Don't do anything - this means the default model binder couldn't
// activate a new instance (like if it's an interface) or figure
// out some other way to model bind it.
}
if (value == null)
{
// We got nothing from the default model binding, so try to
// resolve it.
var context = AutofacDependencyResolver.Current.RequestLifetimeScope;
value = context.ResolveOptional(parameterDescriptor.ParameterType);
}
return value;
}
protected virtual object GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor) {
// collect all of the necessary binding properties
Type parameterType = parameterDescriptor.ParameterType;
IModelBinder binder = GetModelBinder(parameterDescriptor);
IValueProvider valueProvider = controllerContext.Controller.ValueProvider;
string parameterName = parameterDescriptor.BindingInfo.Prefix ?? parameterDescriptor.ParameterName;
Predicate<string> propertyFilter = GetPropertyFilter(parameterDescriptor);
// finally, call into the binder
ModelBindingContext bindingContext = new ModelBindingContext() {
FallbackToEmptyPrefix = (parameterDescriptor.BindingInfo.Prefix == null), // only fall back if prefix not specified
ModelMetadata = ModelMetadataProviders.Current.GetMetadataForType(null, parameterType),
ModelName = parameterName,
ModelState = controllerContext.Controller.ViewData.ModelState,
PropertyFilter = propertyFilter,
ValueProvider = valueProvider
};
object result = binder.BindModel(controllerContext, bindingContext);
return result ?? parameterDescriptor.DefaultValue;
}
private object GetParameterValue(ParameterDescriptor pd, ActionExecutingContext filterContext)
{
Type parameterType = pd.ParameterType;
IModelBinder binder = pd.BindingInfo.Binder ?? ModelBinders.Binders.GetBinder(pd.ParameterType);
IValueProvider valueProvider = filterContext.Controller.ValueProvider;
string parameterName = pd.BindingInfo.Prefix ?? pd.ParameterName;
Predicate<string> propertyFilter = GetPropertyFilter(pd);
ModelBindingContext bindingContext = new ModelBindingContext()
{
FallbackToEmptyPrefix = (pd.BindingInfo.Prefix == null),
ModelMetadata = ModelMetadataProviders.Current.GetMetadataForType(null, parameterType),
ModelName = parameterName,
ModelState = filterContext.Controller.ViewData.ModelState,
PropertyFilter = propertyFilter,
ValueProvider = valueProvider
};
object result = binder.BindModel(filterContext, bindingContext);
return result ?? pd.DefaultValue;
}
protected override object GetParameterValue(
ControllerContext controllerContext,
ParameterDescriptor parameterDescriptor)
{
object parameter = null;
try
{
parameter = GetParameterValueFromDependencyResolver(
parameterDescriptor.ParameterType,
parameterDescriptor.ParameterName);
}
catch
{
return null;
}
if (parameter == null)
parameter = base.GetParameterValue(controllerContext, parameterDescriptor);
return parameter;
}
private IModelBinder GetModelBinder(ParameterDescriptor parameterDescriptor)
{
MethodInfo getModelBinder = typeof(ControllerActionInvoker).GetMethod("GetModelBinder", BindingFlags.Instance | BindingFlags.NonPublic);
return (IModelBinder)getModelBinder.Invoke(this.ActionInvoker, new object[] { parameterDescriptor });
}
protected override object GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor)
{
var parameterValue = base.GetParameterValue(controllerContext, parameterDescriptor);
return parameterValue;
}
public DescribedMvcActionParameterInfo(ParameterDescriptor paramDescr, ActionInfo action)
: base(action)
{
this.paramDescr = paramDescr;
this.reflectedParamDescr = paramDescr as ReflectedParameterDescriptor;
}
protected override object GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor)
{
_log.Debug("VerboseControllerActionInvoker.GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor)");
return base.GetParameterValue(controllerContext, parameterDescriptor);
}
private static Predicate <string> GetPropertyFilter(ParameterDescriptor parameterDescriptor)
{
ParameterBindingInfo bindingInfo = parameterDescriptor.BindingInfo;
return(propertyName => BindAttribute.IsPropertyAllowed(propertyName, bindingInfo.Include.ToArray(), bindingInfo.Exclude.ToArray()));
}
private IModelBinder GetModelBinder(ParameterDescriptor parameterDescriptor)
{
// look on the parameter itself, then look in the global table
return(parameterDescriptor.BindingInfo.Binder ?? Binders.GetBinder(parameterDescriptor.ParameterType));
}
protected override object GetParameterValue(ControllerContext cc, ParameterDescriptor pd)
{
var r = base.GetParameterValue(cc, pd);
return r;
}
protected virtual object GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor)
{
// collect all of the necessary binding properties
Type parameterType = parameterDescriptor.ParameterType;
IModelBinder binder = GetModelBinder(parameterDescriptor);
IValueProvider valueProvider = controllerContext.Controller.ValueProvider;
string parameterName = parameterDescriptor.BindingInfo.Prefix ?? parameterDescriptor.ParameterName;
Predicate <string> propertyFilter = GetPropertyFilter(parameterDescriptor);
// finally, call into the binder
ModelBindingContext bindingContext = new ModelBindingContext()
{
FallbackToEmptyPrefix = (parameterDescriptor.BindingInfo.Prefix == null), // only fall back if prefix not specified
ModelMetadata = ModelMetadataProviders.Current.GetMetadataForType(null, parameterType),
ModelName = parameterName,
ModelState = controllerContext.Controller.ViewData.ModelState,
PropertyFilter = propertyFilter,
ValueProvider = valueProvider
};
object result = binder.BindModel(controllerContext, bindingContext);
return(result ?? parameterDescriptor.DefaultValue);
}
/// <summary>
/// Gets the value of the specified action-method parameter.
/// </summary>
public virtual object GetParameterValue(ParameterDescriptor parameterDescriptor)
{
Type parameterType = parameterDescriptor.ParameterType;
IModelBinder modelBinder = GetModelBinder(parameterDescriptor);
IValueProvider valueProvider = ControllerContext.Controller.ValueProvider;
string str = parameterDescriptor.BindingInfo.Prefix ?? parameterDescriptor.ParameterName;
Predicate<string> propertyFilter = GetPropertyFilter(parameterDescriptor);
ModelBindingContext bindingContext = new ModelBindingContext()
{
FallbackToEmptyPrefix = parameterDescriptor.BindingInfo.Prefix == null,
ModelMetadata = ModelMetadataProviders.Current.GetMetadataForType((Func<object>)null, parameterType),
ModelName = str,
ModelState = ControllerContext.Controller.ViewData.ModelState,
PropertyFilter = propertyFilter,
ValueProvider = valueProvider
};
return modelBinder.BindModel(ControllerContext, bindingContext) ?? parameterDescriptor.DefaultValue;
}
public virtual IModelBinder GetModelBinder(ParameterDescriptor parameterDescriptor)
{
return parameterDescriptor.BindingInfo.Binder ?? _modelBinders.GetBinder(parameterDescriptor.ParameterType);
}
public Parameter(ParameterDescriptor descriptor)
: base(descriptor.ParameterType)
{
Descriptor = descriptor;
}
protected virtual object GetJsonDictValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor)
{
var temp = _jsonRequest.Paramters[parameterDescriptor.ParameterName];
return JsonConverter.DeserializeObject(parameterDescriptor.ParameterType, temp.ToString());
}
protected virtual object GetJsonParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor)
{
return _jsonRequest.GetPostData(parameterDescriptor.ParameterType);
}
/// <summary>
/// 获取Action的参数签名
/// </summary>
/// <param name="args">The args.</param>
/// <returns></returns>
private string GetActionParamsString(ParameterDescriptor[] args)
{
StringBuilder sb = new StringBuilder();
bool isFirst = true;
foreach (var arg in args)
{
if (isFirst) isFirst = false;
else sb.Append(',');
var argType = arg.ParameterType.ToString();
sb.AppendFormat("{0}:{1}", argType.Substring(argType.LastIndexOf('.') + 1), arg.ParameterName);
}
//无参数Action则用Empty表示
if (sb.Length == 0)
sb.Append("Empty");
return sb.ToString();
}
private static Predicate<string> GetPropertyFilter(ParameterDescriptor parameterDescriptor)
{
ParameterBindingInfo bindingInfo = parameterDescriptor.BindingInfo;
return propertyName => BindAttribute.IsPropertyAllowed(propertyName, bindingInfo.Include.ToArray(), bindingInfo.Exclude.ToArray());
}
private IModelBinder GetModelBinder(ParameterDescriptor parameterDescriptor)
{
// look on the parameter itself, then look in the global table
return parameterDescriptor.BindingInfo.Binder ?? Binders.GetBinder(parameterDescriptor.ParameterType);
}
private IModelBinder GetModelBinder(ParameterDescriptor parameterDescriptor)
{
return parameterDescriptor.BindingInfo.Binder ?? Binders.GetBinder(parameterDescriptor.ParameterType);
}
