How to implement a custom IPrincipal in

ASP.NET MVCNat

20140224

Why ?

We want more user information in Principal object

Ex.

User.MemberID

User.LoginID

IPrincipal and IIdentity

System.Security.Principal.IPrincipal

Page.User

Controller.User

System.Security.Principal.IIdentity

User.Identity

How

Define a class which implements IPrinicpal interface

Save custom settings to Cookie

Restore custom settings on every request

Replace User object on PostAuthenticateRequest event

Implementation

public class CustomPrincipalSerializeModel

public class CustomPrincipal : IPrincipal

Signin – save custom settings

Login action

Request – restore custom settings

Global.asax - Application_PostAuthenticateRequest

Implementation

Replace (User as CustomPrincipal).LoginID with User.LoginID

public class CustomController : Controller

Implementation

Replace @(User as CustomPrincipal).MemberID With @(User.MemberID)

public abstract class CustomWebViewPage : WebViewPage

public abstract class CustomWebViewPage<TModel> : WebViewPage<TModel>

Views/Web.config

<pages pageBaseType="CustomWebViewPage">

Reference

http://www.codeproject.com/Tips/574576/How-to-implement-a-custom-IPrincipal-in-ASP-NET-MV

http://stackoverflow.com/questions/1064271/asp-net-mvc-set-custom-iidentity-or-iprincipal