OWIN Mixed Authentication
OWIN middleware implementation mixing Windows and Forms Authentication.
Install with NuGet
PM> Install-Package OWIN-MixedAuth
Running the samples
Before running the samples, make sure to unlock windowsAuthentication section:
IIS
- Open IIS Manager, select the server node, then Feature Delegation.
- Set
Authentication - WindowstoRead/Write
IIS Express
- Open applicationhost.config located at:
- Pre VS2015: $:\Users\{username}\Documents\IISExpress\config
- VS2015: $(SolutionDir)\.vs\config
- Search for
windowsAuthenticationsection and updateoverrideModeDefaultvalue toAllow.
<section name="windowsAuthentication" overrideModeDefault="Allow" />Usage
-
Add reference to
MohammadYounes.Owin.Security.MixedAuth.dll -
Register
MixedAuthin Global.asax
//add using statement
using MohammadYounes.Owin.Security.MixedAuth;
public class MyWebApplication : HttpApplication
{
//ctor
public MyWebApplication()
{
//register MixedAuth
this.RegisterMixedAuth();
}
.
.
.
}- Use
MixedAuthin Startup.Auth.cs
//Enable Mixed Authentication
//As we are using LogonUserIdentity, its required to run in PipelineStage.PostAuthenticate
//Register this after any middleware that uses stage marker PipelineStage.Authenticate
app.UseMixedAuth(cookieOptions);Important! MixedAuth is required to run in PipelineStage.PostAuthenticate, make sure the use statement is after any other middleware that uses PipelineStage.Authenticate. See OWIN Middleware in the IIS integrated pipeline.
- Enable Windows authentication in Web.config
<!-- Enable Mixed Auth -->
<location path="MixedAuth">
<system.webServer>
<security>
<authentication>
<windowsAuthentication enabled="true" />
</authentication>
</security>
</system.webServer>
</location>Important! Enabling windows authentication for a sub path requires windowsAuthentication section to be unlocked at a parent level.
Importing Custom Claims
Adding custom claims in OWIN-MixedAuth is pretty straightforward, simply use MixedAuthProvider and place your own logic for fetching those custom claims.
The following example shows how to import user Email, Surname and GiveName from Active Directory:
// Enable mixed auth
app.UseMixedAuth(new MixedAuthOptions()
{
Provider = new MixedAuthProvider()
{
OnImportClaims = identity =>
{
List<Claim> claims = new List<Claim>();
using (var principalContext = new PrincipalContext(ContextType.Domain)) //or ContextType.Machine
{
using (UserPrincipal userPrincipal = UserPrincipal.FindByIdentity(principalContext, identity.Name))
{
if (userPrincipal != null)
{
claims.Add(new Claim(ClaimTypes.Email, userPrincipal.EmailAddress ?? string.Empty));
claims.Add(new Claim(ClaimTypes.Surname, userPrincipal.Surname ?? string.Empty));
claims.Add(new Claim(ClaimTypes.GivenName, userPrincipal.GivenName ?? string.Empty));
}
}
}
return claims;
}
}
}, cookieOptions);