netmash/NDB.Security.Authentication.../AuthenticationExtensions.cs

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using IdentityServer.Wrapper;
using Microsoft.AspNetCore.Authentication;
using Microsoft.Extensions.DependencyInjection;
using NDB.Security.Authentication.Identity.Abstractions;
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using System;
namespace NDB.Security.Authentication.Identity
{
public static class AuthenticationExtensions
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{
public static IServiceCollection AddAuthentication(this IServiceCollection services, string identityServerBaseAddress)
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{
services.AddAuthentication(identityServerBaseAddress, new Services.AuthenticationOptions());
return services;
}
public static IServiceCollection AddAuthentication(this IServiceCollection services, string identityServerBaseAddress, IAuthenticationOptions authenticationOptions)
{
Validate(identityServerBaseAddress, authenticationOptions);
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// Identity server
services.UseIdentityServices(identityServerBaseAddress);
services.AddSingleton(authenticationOptions);
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// configure authentication
AuthenticationServiceCollectionExtensions.AddAuthentication(services, "IdentityAuthentication")
.AddScheme<AuthenticationSchemeOptions, IdentityAuthenticationHandler>("IdentityAuthentication", null);
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return services;
}
private static void Validate(string identityServerBaseAddress, IAuthenticationOptions authenticationOptions)
{
if (string.IsNullOrEmpty(identityServerBaseAddress))
throw new ArgumentException("Identity server base address must be provided.");
var guestFuncDefined = authenticationOptions.AuthenticateAsGuest != null;
if (guestFuncDefined && string.IsNullOrEmpty(authenticationOptions.GuestUserName))
throw new ArgumentException("Guest function is defined, but guest user name is not set.");
}
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}
}