Extension Method on Identity - asp.net-mvc-5

im using MVC 5 and i found this :
User.Identity.Name full name mvc5
, but i dont know how use the "Extension Method on Identity"
where i put this code, and where...please help me
Extension Method on Identity:
public static class GenericPrincipalExtensions
{
public static string FullName(this IPrincipal user)
{
if (user.Identity.IsAuthenticated)
{
ClaimsIdentity claimsIdentity = user.Identity as ClaimsIdentity;
foreach (var claim in claimsIdentity.Claims)
{
if (claim.Type == "FullName")
return claim.Value;
}
return "";
}
else
return "";
}
}

Create a new static class, for example IdentityExtended
Put static method inside it, for example
Put the namespaces of Clamis and Principal
using System.Security.Claims;
using System.Security.Principal;
public static class IdentityExtended
{
public static string GetFullName(this IIdentity identity)
{
IEnumerable<Claim> claims = ((ClaimsIdentity)identity).Claims;
var FullName = claims.Where(c => c.Type == "FullName").SingleOrDefault();
return FullName.Value;
}
}
Inside View for Example write as below
<h1 class="display-4 rainbow-text">Hello, #User.Identity.GetFullName()!</h1>
Just make sure you put the class inside solution itself no inside a subfolder

Related

Servicestack Roles Users and Groups

Since roles don't contain permissions. I am a bit confused by the Roles and Permission in ServiceStack. It appears they are really the same thing? I want to implement a Group, that has roles, that has permissions. Based on the servicestack default implementation I don't think I can extend the provider and get the nested information.
How would i achieve this and still use the authentication attributes.
If i had an attribute
[RequiredPermission("CanAccessPerm")]
That is in Role:HasAccessRole That is in Group:HasAccessGroup
I would want to only use perms to determine access at the API level. Then Roles and Groups to determine who has perms. If Roles contained permissions then I could just extend the CredentialsAuthProvider TryAuthenticate and additionally look at a group table. Is there a way to do this and not rewrite the whole authentication?
Edit 12/12
I am using
container.Register(c =>
new OrmLiteAuthRepository(c.Resolve())
{
UseDistinctRoleTables = AppSettings.Get("UseDistinctRoleTables", true),
});
How do I get to the IManage roles? I see i can override the IAuthRepository.
I found this link. But its not a replacement for Auth
ServiceStack - roles and permissions
-_Edit 12/29 -- It is not calling the methods in MyOrmLiteAuthRepository. Do you know why?
AppHost.cs
container.Register<IAuthRepository>(c =>
new MyOrmLiteAuthRepository(c.Resolve<IDbConnectionFactory>())
{
UseDistinctRoleTables = AppSettings.Get("UseDistinctRoleTables", true),
});
CustomAuthRepo
public class MyOrmLiteAuthRepository : OrmLiteAuthRepository
{
public MyOrmLiteAuthRepository(IDbConnectionFactory dbFactory) : base(dbFactory) { }
public MyOrmLiteAuthRepository(IDbConnectionFactory dbFactory, string namedConnnection = null)
: base(dbFactory, namedConnnection)
{
DbFactory = dbFactory;
NamedConnnection = namedConnnection;
}
public IDbConnectionFactory DbFactory { get; set; }
public string NamedConnnection { get; set; }
public override ICollection<string> GetPermissions(string userAuthId)
{
var permissions = base.GetPermissions(userAuthId);
using (var ss = HostContext.ResolveService<SecurityService>(new BasicRequest()))
{
permissions = ss.UserPermissions(Convert.ToInt32(userAuthId));
}
return permissions;
}
public override bool HasPermission(string userAuthId, string permission)
{
var hasPermission = base.HasPermission(userAuthId, permission);
using (var ss = HostContext.ResolveService<SecurityService>(new BasicRequest()))
{
hasPermission = ss.UserHasPermInRoleOrGroup(permission, Convert.ToInt32(userAuthId));
}
return hasPermission;
}
}
Roles/Permissions work similar in that a User can have multiple Roles and Permissions but they're logically different in that a Role defines the Role a person has like "Employee", "Manager", etc and Permission defines functionality they have access to like "CanSubmitPurchaseOrders", "CanRefundCustomers", etc.
ServiceStack doesn't support Roles having permissions themselves but you can implement this functionality yourself in your own Custom AuthProvider by overriding OnAuthenticated() and populating the Permissions collections of AuthUserSession with a combination of all the permissions in all the Roles a User is in. If you're not using a custom AuthProvider you can modify the Users Session by implementing the OnAuthenticated() Session of Auth Event Hooks.
Alternatively if you're using an AuthRepository like OrmLiteAuthRepository you can change how permissions are managed by overriding its IManageRoles GetPermissions() and HasPermission() APIs to also inspect the Permissions that the Users Roles have assigned to them which you would need to maintain in an out-of-band table.
Overriding OrmLiteAuthRepository
OrmLiteAuthRepository implements IManageRoles so when needed you can cast IAuthRepository to IManageRoles, e.g:
var manageRoles = (IManageRoles)container.Resolve<IAuthRepository>();
You can override OrmLiteAuthRepository and implement your own GetPermissions() and HasPermission() with normal inheritance, e.g:
public class MyOrmLiteAuthRepository : OrmLiteAuthRepository
{
public MyOrmLiteAuthRepository(IDbConnectionFactory dbFactory) : base(dbFactory) { }
public MyOrmLiteAuthRepository(IDbConnectionFactory dbFactory, string namedConnnection = null)
: base(dbFactory, namedConnnection) {}
public override ICollection<string> GetPermissions(string userAuthId)
{
return base.GetPermissions(userAuthId);
}
public override bool HasPermission(string userAuthId, string permission)
{
return base.HasPermission(userAuthId, permission);
}
}

UserId not found error in aspnet Identity at GenerateUserIdentityAsync method

I am getting UserId not found error after registring a user and also after login.Moreoever, after registration, data is saved to database and in dbo.AspNetUsers table, id column is auto incremented and return type is int.
There is UserId Column in AspNetUserClaims table.It has 4 Col---Id,UserId,ClaimType,ClaimValue.It has Id column as auto incremented not the userId.
I was initially successfully changed Primary key from string to int by following this link---http://www.asp.net/identity/overview/extensibility/change-primary-key-for-users-in-aspnet-identity.
It was running succesfully before but now it is giving me error at this line---
public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser, int> manager)
{
// Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
// Add custom user claims here
return userIdentity;
}
Exception Details: System.InvalidOperationException: UserId not found.
This is the complete stack trace. you can see it here----http://pastebin.com/0hp5eAnp
It was working fine earlier but now when i added foreign key relationship with other tables, i don't know what is missing there. In the database all the tables are created properly with proper relationship between them but something is missing here.
My ApplicationUser class is something like this-------
public class ApplicationUser : IdentityUser<int, CustomUserLogin, CustomUserRole, CustomUserClaim>
{
public ApplicationUser()
{
this.Posts = new HashSet<Post>();
}
[Key]
[DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)]
public int Id { get; set; }
public virtual ICollection<Post> Posts { get; set; }
public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser, int> manager)
{
// Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
// Add custom user claims here
return userIdentity;
}
public class CustomUserRole : IdentityUserRole<int> { }
public class CustomUserClaim : IdentityUserClaim<int> { }
public class CustomUserLogin : IdentityUserLogin<int> { }
public class CustomRole : IdentityRole<int, CustomUserRole>
{
public CustomRole() { }
public CustomRole(string name) { Name = name; }
}
public class CustomUserStore : UserStore<ApplicationUser, CustomRole, int,
CustomUserLogin, CustomUserRole, CustomUserClaim>
{
public CustomUserStore(ApplicationDbContext context)
: base(context)
{
}
}
public class CustomRoleStore : RoleStore<CustomRole, int, CustomUserRole>
{
public CustomRoleStore(ApplicationDbContext context)
: base(context)
{
}
}
and my IdentityConfig.cs class file is something like this-------
// Configure the application user manager used in this application. UserManager is defined in ASP.NET Identity and is used by the application.
public class ApplicationUserManager : UserManager<ApplicationUser, int>
{
public ApplicationUserManager(IUserStore<ApplicationUser, int> store)
: base(store)
{
}
public static ApplicationUserManager Create(IdentityFactoryOptions<ApplicationUserManager> options, IOwinContext context)
{
var manager = new ApplicationUserManager(new CustomUserStore(context.Get<ApplicationDbContext>()));
// Configure validation logic for usernames
manager.UserValidator = new UserValidator<ApplicationUser, int>(manager)
{
AllowOnlyAlphanumericUserNames = false,
RequireUniqueEmail = true
};
// Configure validation logic for passwords
manager.PasswordValidator = new PasswordValidator
{
RequiredLength = 1,
//RequireNonLetterOrDigit = true,
//RequireDigit = true,
//RequireLowercase = true,
//RequireUppercase = true,
};
// Configure user lockout defaults
manager.UserLockoutEnabledByDefault = true;
manager.DefaultAccountLockoutTimeSpan = TimeSpan.FromMinutes(5);
manager.MaxFailedAccessAttemptsBeforeLockout = 5;
// Register two factor authentication providers. This application uses Phone and Emails as a step of receiving a code for verifying the user
// You can write your own provider and plug it in here.
manager.RegisterTwoFactorProvider("Phone Code", new PhoneNumberTokenProvider<ApplicationUser, int>
{
MessageFormat = "Your security code is {0}"
});
manager.RegisterTwoFactorProvider("Email Code", new EmailTokenProvider<ApplicationUser, int>
{
Subject = "Security Code",
BodyFormat = "Your security code is {0}"
});
manager.EmailService = new EmailService();
manager.SmsService = new SmsService();
var dataProtectionProvider = options.DataProtectionProvider;
if (dataProtectionProvider != null)
{
manager.UserTokenProvider =
new DataProtectorTokenProvider<ApplicationUser, int>(dataProtectionProvider.Create("ASP.NET Identity"));
}
return manager;
}
}
// Configure the application sign-in manager which is used in this application.
public class ApplicationSignInManager : SignInManager<ApplicationUser, int>
{
public ApplicationSignInManager(ApplicationUserManager userManager, IAuthenticationManager authenticationManager)
: base(userManager, authenticationManager)
{
}
public override Task<ClaimsIdentity> CreateUserIdentityAsync(ApplicationUser user)
{
return user.GenerateUserIdentityAsync((ApplicationUserManager)UserManager);
}
public static ApplicationSignInManager Create(IdentityFactoryOptions<ApplicationSignInManager> options, IOwinContext context)
{
return new ApplicationSignInManager(context.GetUserManager<ApplicationUserManager>(), context.Authentication);
}
}
i have seen many stackoverflow answers but not getting it to work.Can someone plzz plzz see what is missing, what should i do now.thanks in advance.
Here, in the applicationUser class, at the Id column, it showing some warning and message in tooltip like this-------
models.ApplicationUSer.ID hides inherited member
Microsoft.Aspnet.Identity.EntityFramework.IDentity
USer.Id. To make current member override
that implementation, add override keyword otherwise
add new keyword where x is just the namespace.
My StartUp.Auth.cs in App_Start folder is like this------
public partial class Startup
{
public void ConfigureAuth(IAppBuilder app)
{
// Configure the db context, user manager and signin manager to use a single instance per request
app.CreatePerOwinContext(ApplicationDbContext.Create);
app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);
app.CreatePerOwinContext<ApplicationSignInManager>(ApplicationSignInManager.Create);
// Enable the application to use a cookie to store information for the signed in user
// and to use a cookie to temporarily store information about a user logging in with a third party login provider
// Configure the sign in cookie
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
LoginPath = new PathString("/Account/Login"),
Provider = new CookieAuthenticationProvider
{
// Enables the application to validate the security stamp when the user logs in.
// This is a security feature which is used when you change a password or add an external login to your account.
OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser, int>(
validateInterval: TimeSpan.FromMinutes(30),
regenerateIdentityCallback: (manager, user) => user.GenerateUserIdentityAsync(manager), getUserIdCallback:(id)=>(id.GetUserId<int>()))
}
});
app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie);
// Enables the application to temporarily store user information when they are verifying the second factor in the two-factor authentication process.
app.UseTwoFactorSignInCookie(DefaultAuthenticationTypes.TwoFactorCookie, TimeSpan.FromMinutes(5));
// Enables the application to remember the second login verification factor such as phone or email.
// Once you check this option, your second step of verification during the login process will be remembered on the device where you logged in from.
// This is similar to the RememberMe option when you log in.
app.UseTwoFactorRememberBrowserCookie(DefaultAuthenticationTypes.TwoFactorRememberBrowserCookie);
// Uncomment the following lines to enable logging in with third party login providers
//app.UseMicrosoftAccountAuthentication(
// clientId: "",
// clientSecret: "");......................................................................
and my startUp.cs file is like this----
[assembly: OwinStartupAttribute(typeof(WebApp.Startup))]
namespace WebApp
{
public partial class Startup
{
public void Configuration(IAppBuilder app)
{
ConfigureAuth(app);
}
}
}
You will have to pull out your ApplicationUserManager to have it nice and clean and implement more methods... For example see following post (It implemented all methods with your custom Key (TKey in the example):
http://www.symbolsource.org/MyGet/Metadata/aspnetwebstacknightly/Project/Microsoft.AspNet.Identity.Core/2.0.0-beta1-140211/Release/Default/Microsoft.AspNet.Identity.Core/Microsoft.AspNet.Identity.Core/UserManager.cs?ImageName=Microsoft.AspNet.Identity.Core
You will see that the error you receive GetSecurityStampAsync also is implemented there.

Unable to use multiple instances of MobileServiceClient concurrently

I structured my project into multiple mobile services, grouped by the application type eg:
my-core.azure-mobile.net (user, device)
my-app-A.azure-mobile.net (sales, order, invoice)
my-app-B.azure-mobile.net (inventory & parts)
I'm using custom authentication for all my services, and I implemented my own SSO by setting the same master key to all 3 services.
Things went well when I tested using REST client, eg. user who "logged in" via custom api at my-core.azure-mobile.net is able to use the returned JWT token to access restricted API of the other mobile services.
However, in my xamarin project, only the first (note, in sequence of creation) MobileServiceClient object is working properly (eg. returning results from given table). The client object are created using their own url and key respectively, and stored in a dictionary.
If i created client object for app-A then only create for app-B, I will be able to perform CRUD+Sync on sales/order/invoice entity, while CRUD+Sync operation on inventory/part entity will just hang there. The situation is inverse if I swap the client object creation order.
I wonder if there is any internal static variables used within the MobileServiceClient which caused such behavior, or it is a valid bug ?
=== code snippet ===
public class AzureService
{
IDictionary<String, MobileServiceClient> services = new Dictionary<String, MobileServiceClient>();
public MobileServiceClient Init (String key, String applicationURL, String applicationKey)
{
return services[key] = new MobileServiceClient (applicationURL, applicationKey);
}
public MobileServiceClient Get(String key)
{
return services [key];
}
public void InitSyncContext(MobileServiceSQLiteStore offlineStore)
{
// Uses the default conflict handler, which fails on conflict
// To use a different conflict handler, pass a parameter to InitializeAsync.
// For more details, see http://go.microsoft.com/fwlink/?LinkId=521416
var syncHandler = new MobileServiceSyncHandler ();
foreach(var client in services) {
client.Value.SyncContext.InitializeAsync (offlineStore, syncHandler);
}
}
public void SetAuthenticationToken(String uid, String token)
{
var user = new MobileServiceUser(uid);
foreach(var client in services) {
client.Value.CurrentUser = user;
client.Value.CurrentUser.MobileServiceAuthenticationToken = token;
}
}
public void ClearAuthenticationToken()
{
foreach(var client in services) {
client.Value.CurrentUser = null;
}
}
}
=== more code ===
public class DatabaseService
{
public static MobileServiceSQLiteStore LocalStore = null;
public static string Path { get; set; }
public static ISet<IEntityMappingProvider> Providers = new HashSet<IEntityMappingProvider> ();
public static void Init (String dbPath)
{
LocalStore = new MobileServiceSQLiteStore(dbPath);
foreach(var provider in Providers) {
var types = provider.GetSupportedTypes ();
foreach(var t in types) {
JObject item = null;
// omitted detail to create JObject using reflection on given type
LocalStore.DefineTable(tableName, item);
}
}
}
}
=== still code ===
public class AzureDataSyncService<T> : IAzureDataSyncService<T>
{
public MobileServiceClient ServiceClient { get; set; }
public virtual Task<List<T>> GetAll()
{
try
{
var theTable = ServiceClient.GetSyncTable<T>();
return theTable.ToListAsync();
}
catch (MobileServiceInvalidOperationException msioe)
{
Debug.WriteLine("GetAll<{0}> EXCEPTION TYPE: {1}, EXCEPTION:{2}", typeof(T).ToString(), msioe.GetType().ToString(), msioe.ToString());
}
catch (Exception e)
{
Debug.WriteLine("GetAll<{0}> EXCEPTION TYPE: {1}, EXCEPTION:{2}", typeof(T).ToString(), e.GetType().ToString(), e.ToString());
}
List<T> theCollection = Enumerable.Empty<T>().ToList();
return Task.FromResult(theCollection);
}
}
=== code ===
public class UserService : AzureDataSyncService<User>
{
}
public class PartService : AzureDataSyncService<Part>
{
}
const string coreApiURL = #"https://my-core.azure-mobile.net/";
const string coreApiKey = #"XXXXX";
const string invApiURL = #"https://my-inventory.azure-mobile.net/";
const string invApiKey = #"YYYYY";
public async void Foo ()
{
DatabaseService.Providers.Add (new CoreDataMapper());
DatabaseService.Providers.Add (new InvDataMapper ());
DatabaseService.Init (DatabaseService.Path);
var coreSvc = AzureService.Instance.Init ("Core", coreApiURL, coreApiKey);
var invSvc = AzureService.Instance.Init ("Inv", invApiURL, invApiKey);
AzureService.Instance.InitSyncContext (DatabaseService.LocalStore);
AzureService.Instance.SetAuthenticationToken("AAA", "BBB");
UserService.Instance.ServiceClient = coreSvc;
PartService.Instance.ServiceClient = invSvc;
var x = await UserService.GetAll(); // this will work
var y = await PartService.GetAll(); // but not this
}
It's ok to use multiple MobileServiceClient objects, but not with the same local database. The offline sync feature uses a particular system tables to keep track of table operations and errors, and it is not supported to use the same local store across multiple sync contexts.
I'm not totally sure why it is hanging in your test, but it's possible that there is a lock on the local database file and the other sync context is waiting to get access.
You should instead use different local database files for each service and doing push and pull on each sync context. With your particular example, you just need to move LocalStore out of DatabaseService and into a dictionary in AzureService.
In general, it seems like an unusual design to use multiple services from the same client app. Is there a particular reason that the services need to be separated from each other?

web api 2 - Passing data from action filter to action as an argument

In order to avoid getting the user data on every action I've create an custom action filter that gets the user by its ID and then passes to the action.
public class UserDataAttribute : ActionFilterAttribute
{
public override void OnActionExecuting(HttpActionContext actionContext)
{
...
// getting the user and storing it in the request properties
object user = userBLL.GetUserById(userId);
actionContext.Request.Properties.Add("User", user);
}
}
And the I can get the user object in the action method like this:
[Authorize]
[UserData]
[HttpGet]
[Route("dosomething")]
public IHttpActionResult DoSomething()
{
// retrieve the user
object user;
Request.Properties.TryGetValue("User", out user);
User u = (User)user;
return Ok();
}
However, in MVC it's possible to use ActionParameters in the filter to store something that will be used by the action method, like so:
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
...
// Create object parameter.
filterContext.ActionParameters["User"] = userBLL.GetUserById(userId);
}
And then use the User object as if it were part of the original request:
[AddActionParameter]
public ActionResult Index(User user)
{
// Here I can access the user setted on the filter
...
return View();
}
So, my question is: There is a way in Web API 2 to pass the User object from the action filter to the action as an argument, just like in MVC?
With ASP.NET Web API, you can create a parameter binding to receive an object, User in your case. You don't have to create a filter for this. So, you will create a binding like this.
public class UserParameterBinding : HttpParameterBinding
{
public UserParameterBinding(HttpParameterDescriptor descriptor) :
base(descriptor) { }
public override Task ExecuteBindingAsync(ModelMetadataProvider metadataProvider,
HttpActionContext context,
CancellationToken cancellationToken)
{
SetValue(context, new User() { // set properties here });
return Task.FromResult<object>(null);
}
}
Then, to use the binding, you will configure it, like this.
public static class WebApiConfig
{
public static void Register(HttpConfiguration config)
{
// snip
config.ParameterBindingRules.Insert(0, d =>
d.ParameterType == typeof(User) ? new UserParameterBinding(d) : null);
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
}
With that, wherever you have User as action method parameter, it will automatically bind the instance you are creating inside UserParameterBinding to that parameter.

VaryByParam fails if a param is a list

I've got this action in MVC
[OutputCache(Duration = 1200, VaryByParam = "*")]
public ActionResult FilterArea( string listType, List<int> designersID, int currPage = 1 )
{
// Code removed
}
that fails to present the correct HTML with url like
http://example.com/en-US/women/clothing?designersID=158
http://example.com/en-US/women/clothing?designersID=158&designersID=13
Is this a know bug of OutputCache in .NET cause cannot recognize VaryByParam with a list param or am I missing something?
I too had the same issue in MVC3 and I believe it's still the same case in MVC5.
Here is the setup I had.
Request
POST, Content-Type:application/json, passing in an array of string as the parameter
{ "options": ["option1", "option2"] }
Controller Method
[OutputCache(Duration = 3600, Location = OutputCacheLocation.Any, VaryByParam = "options")]
public ActionResult GetOptionValues(List<string> options)
I tried every option possible with OutputCache and it just wasn't caching for me. Binding worked fine for the actual method to work. My biggest suspicion was that OutputCache wasn't creating unique cache keys so I even pulled its code out of System.Web.MVC.OutputCache to verify. I've verified that it properly builds unique keys even when a List<string> is passed in. Something else is buggy in there but wasn't worth spending more effort.
OutputCacheAttribute.GetUniqueIdFromActionParameters(filterContext,
OutputCacheAttribute.SplitVaryByParam(this.VaryByParam);
Workaround
I ended up creating my own OutputCache attribute following another SO post. Much easier to use and I can go enjoy the rest of the day.
Controller Method
[MyOutputCache(Duration=3600)]
public ActionResult GetOptionValues(Options options)
Custom Request class
I've inherited from List<string> so I can call the overriden .ToString() method in MyOutputcache class to give me a unique cache key string. This approach alone has resolved similar issues for others but not for me.
[DataContract(Name = "Options", Namespace = "")]
public class Options: List<string>
{
public override string ToString()
{
var optionsString= new StringBuilder();
foreach (var option in this)
{
optionsString.Append(option);
}
return optionsString.ToString();
}
}
Custom OutputCache class
public class MyOutputCache : ActionFilterAttribute
{
private string _cachedKey;
public int Duration { get; set; }
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
if (filterContext.HttpContext.Request.Url != null)
{
var path = filterContext.HttpContext.Request.Url.PathAndQuery;
var attributeNames = filterContext.ActionParameters["Options"] as AttributeNames;
if (attributeNames != null) _cachedKey = "MYOUTPUTCACHE:" + path + attributeNames;
}
if (filterContext.HttpContext.Cache[_cachedKey] != null)
{
filterContext.Result = (ActionResult) filterContext.HttpContext.Cache[_cachedKey];
}
else
{
base.OnActionExecuting(filterContext);
}
}
public override void OnActionExecuted(ActionExecutedContext filterContext)
{
filterContext.HttpContext.Cache.Add(_cachedKey, filterContext.Result, null,
DateTime.Now.AddSeconds(Duration), System.Web.Caching.Cache.NoSlidingExpiration,
System.Web.Caching.CacheItemPriority.Default, null);
base.OnActionExecuted(filterContext);
}
}

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