Walkthrough: Authenticate a User Using a Token
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This walkthrough demonstrates how to use the Security Application Block to authenticate a user using a token.
To reproduce the demonstration
Authenticate the user. The following code demonstrates how to authenticate a user using the System.Web.Security.Membership class.
IIdentity identity = null; if (Membership.ValidateUser("username", "password")) { identity = new GenericIdentity("username", Membership.Provider.Name); }
'Usage Dim identity As IIdentity = Nothing If (Membership.ValidateUser("username", "password")) Then identity = New GenericIdentity("username", Membership.Provider.Name) End If
Create the security cache by adding the following code.
ISecurityCacheProvider secCache = SecurityCacheFactory.GetSecurityCacheProvider("Caching Store Provider");
'Usage Dim secCache As ISecurityCacheProvider = SecurityCacheFactory.GetSecurityCacheProvider("Caching Store Provider")
Call the SaveIdentity method on the security cache object by adding the following code.
IToken token = null; if (identity != null) { token = secCache.SaveIdentity(identity); }
'Usage Dim token As IToken = Nothing If (Not identity Is Nothing) Then token = secCache.SaveIdentity(identity) End If
Call the GetIdentity method on the security cache object by adding the following code.
IIdentity savedIdentity = secCache.GetIdentity(token);
'Usage Dim savedIdentity As IIdentity = secCache.GetIdentity(token)
This returns the identity associated with the token. If the token has been expired, or is not valid, GetIdentity returns null (C#) or Nothing (Visual Basic).