Skip to content

Instantly share code, notes, and snippets.

@d2funlife
Created September 19, 2017 19:33
Show Gist options
  • Save d2funlife/23acaec27253da02cd0b3dbe518bd3b3 to your computer and use it in GitHub Desktop.
Save d2funlife/23acaec27253da02cd0b3dbe518bd3b3 to your computer and use it in GitHub Desktop.
Controller
namespace System.Web.Mvc
{
[SuppressMessage("Microsoft.Maintainability", "CA1506:AvoidExcessiveClassCoupling", Justification = "Class complexity dictated by public surface area")]
public abstract class Controller : ControllerBase, IActionFilter, IAuthenticationFilter, IAuthorizationFilter, IDisposable, IExceptionFilter, IResultFilter, IAsyncController, IAsyncManagerContainer
{
private static readonly object _executeTag = new object();
private static readonly object _executeCoreTag = new object();
private readonly AsyncManager _asyncManager = new AsyncManager();
private IActionInvoker _actionInvoker;
private ModelBinderDictionary _binders;
private RouteCollection _routeCollection;
private ITempDataProvider _tempDataProvider;
private ViewEngineCollection _viewEngineCollection;
private IDependencyResolver _resolver;
/// <summary>
/// Represents a replaceable dependency resolver providing services.
/// By default, it uses the <see cref="DependencyResolver.CurrentCache"/>.
/// </summary>
public IDependencyResolver Resolver
{
get { return _resolver ?? DependencyResolver.CurrentCache; }
set { _resolver = value; }
}
public AsyncManager AsyncManager
{
get { return _asyncManager; }
}
/// <summary>
/// This is for backwards compat. MVC 4.0 starts allowing Controller to support asynchronous patterns.
/// This means ExecuteCore doesn't get called on derived classes. Derived classes can override this
/// flag and set to true if they still need ExecuteCore to be called.
/// </summary>
protected virtual bool DisableAsyncSupport
{
get { return false; }
}
public IActionInvoker ActionInvoker
{
get
{
if (_actionInvoker == null)
{
_actionInvoker = CreateActionInvoker();
}
return _actionInvoker;
}
set { _actionInvoker = value; }
}
[SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly", Justification = "Property is settable so that the dictionary can be provided for unit testing purposes.")]
protected internal ModelBinderDictionary Binders
{
get
{
if (_binders == null)
{
_binders = ModelBinders.Binders;
}
return _binders;
}
set { _binders = value; }
}
public HttpContextBase HttpContext
{
get { return ControllerContext == null ? null : ControllerContext.HttpContext; }
}
public ModelStateDictionary ModelState
{
get { return ViewData.ModelState; }
}
public ProfileBase Profile
{
get { return HttpContext == null ? null : HttpContext.Profile; }
}
public HttpRequestBase Request
{
get { return HttpContext == null ? null : HttpContext.Request; }
}
public HttpResponseBase Response
{
get { return HttpContext == null ? null : HttpContext.Response; }
}
internal RouteCollection RouteCollection
{
get
{
if (_routeCollection == null)
{
_routeCollection = RouteTable.Routes;
}
return _routeCollection;
}
set { _routeCollection = value; }
}
public RouteData RouteData
{
get { return ControllerContext == null ? null : ControllerContext.RouteData; }
}
public HttpServerUtilityBase Server
{
get { return HttpContext == null ? null : HttpContext.Server; }
}
public HttpSessionStateBase Session
{
get { return HttpContext == null ? null : HttpContext.Session; }
}
public ITempDataProvider TempDataProvider
{
get
{
if (_tempDataProvider == null)
{
_tempDataProvider = CreateTempDataProvider();
}
return _tempDataProvider;
}
set { _tempDataProvider = value; }
}
public UrlHelper Url { get; set; }
public IPrincipal User
{
get { return HttpContext == null ? null : HttpContext.User; }
}
[SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly", Justification = "This entire type is meant to be mutable.")]
public ViewEngineCollection ViewEngineCollection
{
get { return _viewEngineCollection ?? ViewEngines.Engines; }
set { _viewEngineCollection = value; }
}
[SuppressMessage("Microsoft.Naming", "CA1719:ParameterNamesShouldNotMatchMemberNames", MessageId = "0#", Justification = "'Content' refers to ContentResult type; 'content' refers to ContentResult.Content property.")]
protected internal ContentResult Content(string content)
{
return Content(content, null /* contentType */);
}
[SuppressMessage("Microsoft.Naming", "CA1719:ParameterNamesShouldNotMatchMemberNames", MessageId = "0#", Justification = "'Content' refers to ContentResult type; 'content' refers to ContentResult.Content property.")]
protected internal ContentResult Content(string content, string contentType)
{
return Content(content, contentType, null /* contentEncoding */);
}
[SuppressMessage("Microsoft.Naming", "CA1719:ParameterNamesShouldNotMatchMemberNames", MessageId = "0#", Justification = "'Content' refers to ContentResult type; 'content' refers to ContentResult.Content property.")]
protected internal virtual ContentResult Content(string content, string contentType, Encoding contentEncoding)
{
return new ContentResult
{
Content = content,
ContentType = contentType,
ContentEncoding = contentEncoding
};
}
protected virtual IActionInvoker CreateActionInvoker()
{
// Controller supports asynchronous operations by default.
// Those factories can be customized in order to create an action invoker for each request.
IAsyncActionInvokerFactory asyncActionInvokerFactory = Resolver.GetService<IAsyncActionInvokerFactory>();
if (asyncActionInvokerFactory != null)
{
return asyncActionInvokerFactory.CreateInstance();
}
IActionInvokerFactory actionInvokerFactory = Resolver.GetService<IActionInvokerFactory>();
if (actionInvokerFactory != null)
{
return actionInvokerFactory.CreateInstance();
}
// Note that getting a service from the current cache will return the same instance for every request.
return Resolver.GetService<IAsyncActionInvoker>() ??
Resolver.GetService<IActionInvoker>() ??
new AsyncControllerActionInvoker();
}
protected virtual ITempDataProvider CreateTempDataProvider()
{
// The factory can be customized in order to create an ITempDataProvider for the controller.
ITempDataProviderFactory tempDataProviderFactory = Resolver.GetService<ITempDataProviderFactory>();
if (tempDataProviderFactory != null)
{
return tempDataProviderFactory.CreateInstance();
}
// Note that getting a service from the current cache will return the same instance for every controller.
return Resolver.GetService<ITempDataProvider>() ?? new SessionStateTempDataProvider();
}
// The default invoker will never match methods defined on the Controller type, so
// the Dispose() method is not web-callable. However, in general, since implicitly-
// implemented interface methods are public, they are web-callable unless decorated with
// [NonAction].
public void Dispose()
{
Dispose(true /* disposing */);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing)
{
}
protected override void ExecuteCore()
{
// If code in this method needs to be updated, please also check the BeginExecuteCore() and
// EndExecuteCore() methods of AsyncController to see if that code also must be updated.
PossiblyLoadTempData();
try
{
string actionName = GetActionName(RouteData);
if (!ActionInvoker.InvokeAction(ControllerContext, actionName))
{
HandleUnknownAction(actionName);
}
}
finally
{
PossiblySaveTempData();
}
}
protected internal FileContentResult File(byte[] fileContents, string contentType)
{
return File(fileContents, contentType, null /* fileDownloadName */);
}
protected internal virtual FileContentResult File(byte[] fileContents, string contentType, string fileDownloadName)
{
return new FileContentResult(fileContents, contentType) { FileDownloadName = fileDownloadName };
}
protected internal FileStreamResult File(Stream fileStream, string contentType)
{
return File(fileStream, contentType, null /* fileDownloadName */);
}
protected internal virtual FileStreamResult File(Stream fileStream, string contentType, string fileDownloadName)
{
return new FileStreamResult(fileStream, contentType) { FileDownloadName = fileDownloadName };
}
protected internal FilePathResult File(string fileName, string contentType)
{
return File(fileName, contentType, null /* fileDownloadName */);
}
protected internal virtual FilePathResult File(string fileName, string contentType, string fileDownloadName)
{
return new FilePathResult(fileName, contentType) { FileDownloadName = fileDownloadName };
}
private static string GetActionName(RouteData routeData)
{
Contract.Assert(routeData != null);
// If this is an attribute routing match then the 'RouteData' has a list of sub-matches rather than
// the traditional controller and action values. When the match is an attribute routing match
// we'll pass null to the action selector, and let it choose a sub-match to use.
if (routeData.HasDirectRouteMatch())
{
return null;
}
else
{
return routeData.GetRequiredString("action");
}
}
protected virtual void HandleUnknownAction(string actionName)
{
// If this is a direct route we might not yet have an action name
if (String.IsNullOrEmpty(actionName))
{
throw new HttpException(404, String.Format(CultureInfo.CurrentCulture,
MvcResources.Controller_UnknownAction_NoActionName, GetType().FullName));
}
else
{
throw new HttpException(404, String.Format(CultureInfo.CurrentCulture,
MvcResources.Controller_UnknownAction, actionName, GetType().FullName));
}
}
protected internal HttpNotFoundResult HttpNotFound()
{
return HttpNotFound(null);
}
protected internal virtual HttpNotFoundResult HttpNotFound(string statusDescription)
{
return new HttpNotFoundResult(statusDescription);
}
protected internal virtual JavaScriptResult JavaScript(string script)
{
return new JavaScriptResult { Script = script };
}
protected internal JsonResult Json(object data)
{
return Json(data, null /* contentType */, null /* contentEncoding */, JsonRequestBehavior.DenyGet);
}
protected internal JsonResult Json(object data, string contentType)
{
return Json(data, contentType, null /* contentEncoding */, JsonRequestBehavior.DenyGet);
}
protected internal virtual JsonResult Json(object data, string contentType, Encoding contentEncoding)
{
return Json(data, contentType, contentEncoding, JsonRequestBehavior.DenyGet);
}
protected internal JsonResult Json(object data, JsonRequestBehavior behavior)
{
return Json(data, null /* contentType */, null /* contentEncoding */, behavior);
}
protected internal JsonResult Json(object data, string contentType, JsonRequestBehavior behavior)
{
return Json(data, contentType, null /* contentEncoding */, behavior);
}
protected internal virtual JsonResult Json(object data, string contentType, Encoding contentEncoding, JsonRequestBehavior behavior)
{
return new JsonResult
{
Data = data,
ContentType = contentType,
ContentEncoding = contentEncoding,
JsonRequestBehavior = behavior
};
}
protected override void Initialize(RequestContext requestContext)
{
base.Initialize(requestContext);
Url = new UrlHelper(requestContext);
}
protected virtual void OnActionExecuting(ActionExecutingContext filterContext)
{
}
protected virtual void OnActionExecuted(ActionExecutedContext filterContext)
{
}
protected virtual void OnAuthentication(AuthenticationContext filterContext)
{
}
protected virtual void OnAuthenticationChallenge(AuthenticationChallengeContext filterContext)
{
}
protected virtual void OnAuthorization(AuthorizationContext filterContext)
{
}
protected virtual void OnException(ExceptionContext filterContext)
{
}
protected virtual void OnResultExecuted(ResultExecutedContext filterContext)
{
}
protected virtual void OnResultExecuting(ResultExecutingContext filterContext)
{
}
protected internal PartialViewResult PartialView()
{
return PartialView(null /* viewName */, null /* model */);
}
protected internal PartialViewResult PartialView(object model)
{
return PartialView(null /* viewName */, model);
}
protected internal PartialViewResult PartialView(string viewName)
{
return PartialView(viewName, null /* model */);
}
protected internal virtual PartialViewResult PartialView(string viewName, object model)
{
if (model != null)
{
ViewData.Model = model;
}
return new PartialViewResult
{
ViewName = viewName,
ViewData = ViewData,
TempData = TempData,
ViewEngineCollection = ViewEngineCollection
};
}
internal void PossiblyLoadTempData()
{
if (!ControllerContext.IsChildAction)
{
TempData.Load(ControllerContext, TempDataProvider);
}
}
internal void PossiblySaveTempData()
{
if (!ControllerContext.IsChildAction)
{
TempData.Save(ControllerContext, TempDataProvider);
}
}
[SuppressMessage("Microsoft.Design", "CA1054:UriParametersShouldNotBeStrings", MessageId = "0#", Justification = "Response.Redirect() takes its URI as a string parameter.")]
protected internal virtual RedirectResult Redirect(string url)
{
if (String.IsNullOrEmpty(url))
{
throw new ArgumentException(MvcResources.Common_NullOrEmpty, "url");
}
return new RedirectResult(url);
}
[SuppressMessage("Microsoft.Design", "CA1054:UriParametersShouldNotBeStrings", MessageId = "0#", Justification = "Response.RedirectPermanent() takes its URI as a string parameter.")]
protected internal virtual RedirectResult RedirectPermanent(string url)
{
if (String.IsNullOrEmpty(url))
{
throw new ArgumentException(MvcResources.Common_NullOrEmpty, "url");
}
return new RedirectResult(url, permanent: true);
}
protected internal RedirectToRouteResult RedirectToAction(string actionName)
{
return RedirectToAction(actionName, (RouteValueDictionary)null);
}
protected internal RedirectToRouteResult RedirectToAction(string actionName, object routeValues)
{
return RedirectToAction(actionName, TypeHelper.ObjectToDictionary(routeValues));
}
protected internal RedirectToRouteResult RedirectToAction(string actionName, RouteValueDictionary routeValues)
{
return RedirectToAction(actionName, null /* controllerName */, routeValues);
}
protected internal RedirectToRouteResult RedirectToAction(string actionName, string controllerName)
{
return RedirectToAction(actionName, controllerName, (RouteValueDictionary)null);
}
protected internal RedirectToRouteResult RedirectToAction(string actionName, string controllerName, object routeValues)
{
return RedirectToAction(actionName, controllerName, TypeHelper.ObjectToDictionary(routeValues));
}
protected internal virtual RedirectToRouteResult RedirectToAction(string actionName, string controllerName, RouteValueDictionary routeValues)
{
RouteValueDictionary mergedRouteValues;
if (RouteData == null)
{
mergedRouteValues = RouteValuesHelpers.MergeRouteValues(actionName, controllerName, null, routeValues, includeImplicitMvcValues: true);
}
else
{
mergedRouteValues = RouteValuesHelpers.MergeRouteValues(actionName, controllerName, RouteData.Values, routeValues, includeImplicitMvcValues: true);
}
return new RedirectToRouteResult(mergedRouteValues);
}
protected internal RedirectToRouteResult RedirectToActionPermanent(string actionName)
{
return RedirectToActionPermanent(actionName, (RouteValueDictionary)null);
}
protected internal RedirectToRouteResult RedirectToActionPermanent(string actionName, object routeValues)
{
return RedirectToActionPermanent(actionName, TypeHelper.ObjectToDictionary(routeValues));
}
protected internal RedirectToRouteResult RedirectToActionPermanent(string actionName, RouteValueDictionary routeValues)
{
return RedirectToActionPermanent(actionName, null /* controllerName */, routeValues);
}
protected internal RedirectToRouteResult RedirectToActionPermanent(string actionName, string controllerName)
{
return RedirectToActionPermanent(actionName, controllerName, (RouteValueDictionary)null);
}
protected internal RedirectToRouteResult RedirectToActionPermanent(string actionName, string controllerName, object routeValues)
{
return RedirectToActionPermanent(actionName, controllerName, TypeHelper.ObjectToDictionary(routeValues));
}
protected internal virtual RedirectToRouteResult RedirectToActionPermanent(string actionName, string controllerName, RouteValueDictionary routeValues)
{
RouteValueDictionary implicitRouteValues = (RouteData != null) ? RouteData.Values : null;
RouteValueDictionary mergedRouteValues =
RouteValuesHelpers.MergeRouteValues(actionName, controllerName, implicitRouteValues, routeValues, includeImplicitMvcValues: true);
return new RedirectToRouteResult(null, mergedRouteValues, permanent: true);
}
protected internal RedirectToRouteResult RedirectToRoute(object routeValues)
{
return RedirectToRoute(TypeHelper.ObjectToDictionary(routeValues));
}
protected internal RedirectToRouteResult RedirectToRoute(RouteValueDictionary routeValues)
{
return RedirectToRoute(null /* routeName */, routeValues);
}
protected internal RedirectToRouteResult RedirectToRoute(string routeName)
{
return RedirectToRoute(routeName, (RouteValueDictionary)null);
}
protected internal RedirectToRouteResult RedirectToRoute(string routeName, object routeValues)
{
return RedirectToRoute(routeName, TypeHelper.ObjectToDictionary(routeValues));
}
protected internal virtual RedirectToRouteResult RedirectToRoute(string routeName, RouteValueDictionary routeValues)
{
return new RedirectToRouteResult(routeName, RouteValuesHelpers.GetRouteValues(routeValues));
}
protected internal RedirectToRouteResult RedirectToRoutePermanent(object routeValues)
{
return RedirectToRoutePermanent(TypeHelper.ObjectToDictionary(routeValues));
}
protected internal RedirectToRouteResult RedirectToRoutePermanent(RouteValueDictionary routeValues)
{
return RedirectToRoutePermanent(null /* routeName */, routeValues);
}
protected internal RedirectToRouteResult RedirectToRoutePermanent(string routeName)
{
return RedirectToRoutePermanent(routeName, (RouteValueDictionary)null);
}
protected internal RedirectToRouteResult RedirectToRoutePermanent(string routeName, object routeValues)
{
return RedirectToRoutePermanent(routeName, TypeHelper.ObjectToDictionary(routeValues));
}
protected internal virtual RedirectToRouteResult RedirectToRoutePermanent(string routeName, RouteValueDictionary routeValues)
{
return new RedirectToRouteResult(routeName, RouteValuesHelpers.GetRouteValues(routeValues), permanent: true);
}
protected internal bool TryUpdateModel<TModel>(TModel model) where TModel : class
{
return TryUpdateModel(model, null, null, null, ValueProvider);
}
protected internal bool TryUpdateModel<TModel>(TModel model, string prefix) where TModel : class
{
return TryUpdateModel(model, prefix, null, null, ValueProvider);
}
protected internal bool TryUpdateModel<TModel>(TModel model, string[] includeProperties) where TModel : class
{
return TryUpdateModel(model, null, includeProperties, null, ValueProvider);
}
protected internal bool TryUpdateModel<TModel>(TModel model, string prefix, string[] includeProperties) where TModel : class
{
return TryUpdateModel(model, prefix, includeProperties, null, ValueProvider);
}
protected internal bool TryUpdateModel<TModel>(TModel model, string prefix, string[] includeProperties, string[] excludeProperties) where TModel : class
{
return TryUpdateModel(model, prefix, includeProperties, excludeProperties, ValueProvider);
}
protected internal bool TryUpdateModel<TModel>(TModel model, IValueProvider valueProvider) where TModel : class
{
return TryUpdateModel(model, null, null, null, valueProvider);
}
protected internal bool TryUpdateModel<TModel>(TModel model, string prefix, IValueProvider valueProvider) where TModel : class
{
return TryUpdateModel(model, prefix, null, null, valueProvider);
}
protected internal bool TryUpdateModel<TModel>(TModel model, string[] includeProperties, IValueProvider valueProvider) where TModel : class
{
return TryUpdateModel(model, null, includeProperties, null, valueProvider);
}
protected internal bool TryUpdateModel<TModel>(TModel model, string prefix, string[] includeProperties, IValueProvider valueProvider) where TModel : class
{
return TryUpdateModel(model, prefix, includeProperties, null, valueProvider);
}
protected internal bool TryUpdateModel<TModel>(TModel model, string prefix, string[] includeProperties, string[] excludeProperties, IValueProvider valueProvider) where TModel : class
{
if (model == null)
{
throw new ArgumentNullException("model");
}
if (valueProvider == null)
{
throw new ArgumentNullException("valueProvider");
}
Predicate<string> propertyFilter = propertyName => BindAttribute.IsPropertyAllowed(propertyName, includeProperties, excludeProperties);
IModelBinder binder = Binders.GetBinder(typeof(TModel));
ModelBindingContext bindingContext = new ModelBindingContext()
{
ModelMetadata = ModelMetadataProviders.Current.GetMetadataForType(() => model, typeof(TModel)),
ModelName = prefix,
ModelState = ModelState,
PropertyFilter = propertyFilter,
ValueProvider = valueProvider
};
binder.BindModel(ControllerContext, bindingContext);
return ModelState.IsValid;
}
protected internal bool TryValidateModel(object model)
{
return TryValidateModel(model, null /* prefix */);
}
protected internal bool TryValidateModel(object model, string prefix)
{
if (model == null)
{
throw new ArgumentNullException("model");
}
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForType(() => model, model.GetType());
foreach (ModelValidationResult validationResult in ModelValidator.GetModelValidator(metadata, ControllerContext).Validate(null))
{
ModelState.AddModelError(DefaultModelBinder.CreateSubPropertyName(prefix, validationResult.MemberName), validationResult.Message);
}
return ModelState.IsValid;
}
protected internal void UpdateModel<TModel>(TModel model) where TModel : class
{
UpdateModel(model, null, null, null, ValueProvider);
}
protected internal void UpdateModel<TModel>(TModel model, string prefix) where TModel : class
{
UpdateModel(model, prefix, null, null, ValueProvider);
}
protected internal void UpdateModel<TModel>(TModel model, string[] includeProperties) where TModel : class
{
UpdateModel(model, null, includeProperties, null, ValueProvider);
}
protected internal void UpdateModel<TModel>(TModel model, string prefix, string[] includeProperties) where TModel : class
{
UpdateModel(model, prefix, includeProperties, null, ValueProvider);
}
protected internal void UpdateModel<TModel>(TModel model, string prefix, string[] includeProperties, string[] excludeProperties) where TModel : class
{
UpdateModel(model, prefix, includeProperties, excludeProperties, ValueProvider);
}
protected internal void UpdateModel<TModel>(TModel model, IValueProvider valueProvider) where TModel : class
{
UpdateModel(model, null, null, null, valueProvider);
}
protected internal void UpdateModel<TModel>(TModel model, string prefix, IValueProvider valueProvider) where TModel : class
{
UpdateModel(model, prefix, null, null, valueProvider);
}
protected internal void UpdateModel<TModel>(TModel model, string[] includeProperties, IValueProvider valueProvider) where TModel : class
{
UpdateModel(model, null, includeProperties, null, valueProvider);
}
protected internal void UpdateModel<TModel>(TModel model, string prefix, string[] includeProperties, IValueProvider valueProvider) where TModel : class
{
UpdateModel(model, prefix, includeProperties, null, valueProvider);
}
protected internal void UpdateModel<TModel>(TModel model, string prefix, string[] includeProperties, string[] excludeProperties, IValueProvider valueProvider) where TModel : class
{
bool success = TryUpdateModel(model, prefix, includeProperties, excludeProperties, valueProvider);
if (!success)
{
string message = String.Format(CultureInfo.CurrentCulture, MvcResources.Controller_UpdateModel_UpdateUnsuccessful,
typeof(TModel).FullName);
throw new InvalidOperationException(message);
}
}
protected internal void ValidateModel(object model)
{
ValidateModel(model, null /* prefix */);
}
protected internal void ValidateModel(object model, string prefix)
{
if (!TryValidateModel(model, prefix))
{
throw new InvalidOperationException(
String.Format(
CultureInfo.CurrentCulture,
MvcResources.Controller_Validate_ValidationFailed,
model.GetType().FullName));
}
}
protected internal ViewResult View()
{
return View(viewName: null, masterName: null, model: null);
}
protected internal ViewResult View(object model)
{
return View(null /* viewName */, null /* masterName */, model);
}
protected internal ViewResult View(string viewName)
{
return View(viewName, masterName: null, model: null);
}
protected internal ViewResult View(string viewName, string masterName)
{
return View(viewName, masterName, null /* model */);
}
protected internal ViewResult View(string viewName, object model)
{
return View(viewName, null /* masterName */, model);
}
protected internal virtual ViewResult View(string viewName, string masterName, object model)
{
if (model != null)
{
ViewData.Model = model;
}
return new ViewResult
{
ViewName = viewName,
MasterName = masterName,
ViewData = ViewData,
TempData = TempData,
ViewEngineCollection = ViewEngineCollection
};
}
[SuppressMessage("Microsoft.Naming", "CA1719:ParameterNamesShouldNotMatchMemberNames", MessageId = "0#", Justification = "The method name 'View' is a convenient shorthand for 'CreateViewResult'.")]
protected internal ViewResult View(IView view)
{
return View(view, null /* model */);
}
[SuppressMessage("Microsoft.Naming", "CA1719:ParameterNamesShouldNotMatchMemberNames", MessageId = "0#", Justification = "The method name 'View' is a convenient shorthand for 'CreateViewResult'.")]
protected internal virtual ViewResult View(IView view, object model)
{
if (model != null)
{
ViewData.Model = model;
}
return new ViewResult
{
View = view,
ViewData = ViewData,
TempData = TempData
};
}
IAsyncResult IAsyncController.BeginExecute(RequestContext requestContext, AsyncCallback callback, object state)
{
return BeginExecute(requestContext, callback, state);
}
void IAsyncController.EndExecute(IAsyncResult asyncResult)
{
EndExecute(asyncResult);
}
protected virtual IAsyncResult BeginExecute(RequestContext requestContext, AsyncCallback callback, object state)
{
if (DisableAsyncSupport)
{
// For backwards compat, we can disallow async support and just chain to the sync Execute() function.
Action action = () =>
{
Execute(requestContext);
};
return AsyncResultWrapper.BeginSynchronous(callback, state, action, _executeTag);
}
else
{
if (requestContext == null)
{
throw new ArgumentNullException("requestContext");
}
// Support Asynchronous behavior.
// Execute/ExecuteCore are no longer called.
VerifyExecuteCalledOnce();
Initialize(requestContext);
// Ensure delegates continue to use the C# Compiler static delegate caching optimization.
BeginInvokeDelegate<Controller> beginDelegate = (AsyncCallback asyncCallback, object callbackState, Controller controller) =>
{
return controller.BeginExecuteCore(asyncCallback, callbackState);
};
EndInvokeVoidDelegate<Controller> endDelegate = (IAsyncResult asyncResult, Controller controller) =>
{
controller.EndExecuteCore(asyncResult);
};
return AsyncResultWrapper.Begin(callback, state, beginDelegate, endDelegate, this, _executeTag);
}
}
protected virtual IAsyncResult BeginExecuteCore(AsyncCallback callback, object state)
{
// If code in this method needs to be updated, please also check the ExecuteCore() method
// of Controller to see if that code also must be updated.
PossiblyLoadTempData();
try
{
string actionName = GetActionName(RouteData);
IActionInvoker invoker = ActionInvoker;
IAsyncActionInvoker asyncInvoker = invoker as IAsyncActionInvoker;
if (asyncInvoker != null)
{
// asynchronous invocation
// Ensure delegates continue to use the C# Compiler static delegate caching optimization.
BeginInvokeDelegate<ExecuteCoreState> beginDelegate = delegate(AsyncCallback asyncCallback, object asyncState, ExecuteCoreState innerState)
{
return innerState.AsyncInvoker.BeginInvokeAction(innerState.Controller.ControllerContext, innerState.ActionName, asyncCallback, asyncState);
};
EndInvokeVoidDelegate<ExecuteCoreState> endDelegate = delegate(IAsyncResult asyncResult, ExecuteCoreState innerState)
{
if (!innerState.AsyncInvoker.EndInvokeAction(asyncResult))
{
innerState.Controller.HandleUnknownAction(innerState.ActionName);
}
};
ExecuteCoreState executeState = new ExecuteCoreState() { Controller = this, AsyncInvoker = asyncInvoker, ActionName = actionName };
return AsyncResultWrapper.Begin(callback, state, beginDelegate, endDelegate, executeState, _executeCoreTag);
}
else
{
// synchronous invocation
Action action = () =>
{
if (!invoker.InvokeAction(ControllerContext, actionName))
{
HandleUnknownAction(actionName);
}
};
return AsyncResultWrapper.BeginSynchronous(callback, state, action, _executeCoreTag);
}
}
catch
{
PossiblySaveTempData();
throw;
}
}
protected virtual void EndExecute(IAsyncResult asyncResult)
{
AsyncResultWrapper.End(asyncResult, _executeTag);
}
protected virtual void EndExecuteCore(IAsyncResult asyncResult)
{
// If code in this method needs to be updated, please also check the ExecuteCore() method
// of Controller to see if that code also must be updated.
try
{
AsyncResultWrapper.End(asyncResult, _executeCoreTag);
}
finally
{
PossiblySaveTempData();
}
}
#region IActionFilter Members
void IActionFilter.OnActionExecuting(ActionExecutingContext filterContext)
{
OnActionExecuting(filterContext);
}
void IActionFilter.OnActionExecuted(ActionExecutedContext filterContext)
{
OnActionExecuted(filterContext);
}
#endregion
#region IAuthenticationFilter Members
void IAuthenticationFilter.OnAuthentication(AuthenticationContext filterContext)
{
OnAuthentication(filterContext);
}
void IAuthenticationFilter.OnAuthenticationChallenge(AuthenticationChallengeContext filterContext)
{
OnAuthenticationChallenge(filterContext);
}
#endregion
#region IAuthorizationFilter Members
void IAuthorizationFilter.OnAuthorization(AuthorizationContext filterContext)
{
OnAuthorization(filterContext);
}
#endregion
#region IExceptionFilter Members
void IExceptionFilter.OnException(ExceptionContext filterContext)
{
OnException(filterContext);
}
#endregion
#region IResultFilter Members
void IResultFilter.OnResultExecuting(ResultExecutingContext filterContext)
{
OnResultExecuting(filterContext);
}
void IResultFilter.OnResultExecuted(ResultExecutedContext filterContext)
{
OnResultExecuted(filterContext);
}
#endregion
// Keep as value type to avoid allocating
private struct ExecuteCoreState
{
internal IAsyncActionInvoker AsyncInvoker;
internal Controller Controller;
internal string ActionName;
}
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment