/// <summary>
/// This methods gets called for local authentication (whenever the user uses the username and password dialog).
/// </summary>
/// <param name="username">The username.</param>
/// <param name="password">The password.</param>
/// <param name="message">The signin message.</param>
/// <returns>
/// The authentication result
/// </returns>
public virtual Task<AuthenticateResult> AuthenticateLocalAsync(string username, string password, SignInMessage message)
{
var query =
from u in _users
where u.Username == username && u.Password == password
select u;
var user = query.SingleOrDefault();
if (user != null)
{
var p = IdentityServerPrincipal.Create(user.Subject, GetDisplayName(user), Constants.AuthenticationMethods.Password, Constants.BuiltInIdentityProvider);
var result = new AuthenticateResult(p);
return Task.FromResult(result);
}
return Task.FromResult<AuthenticateResult>(null);
}
/// <summary>
/// This method gets called when the user uses an external identity provider to authenticate.
/// </summary>
/// <param name="externalUser">The external user.</param>
/// <returns>
/// The authentication result.
/// </returns>
public virtual Task<AuthenticateResult> AuthenticateExternalAsync(ExternalIdentity externalUser)
{
var query =
from u in _users
where
u.Provider == externalUser.Provider &&
u.ProviderId == externalUser.ProviderId
select u;
var user = query.SingleOrDefault();
if (user == null)
{
var name = externalUser.Claims.FirstOrDefault(x => x.Type == Constants.ClaimTypes.Name);
if (name == null)
{
return Task.FromResult<AuthenticateResult>(null);
}
user = new InMemoryUser
{
Subject = CryptoRandom.CreateUniqueId(),
Provider = externalUser.Provider,
ProviderId = externalUser.ProviderId,
Username = name.Value,
Claims = externalUser.Claims
};
_users.Add(user);
}
var p = IdentityServerPrincipal.Create(user.Subject, GetDisplayName(user), Constants.AuthenticationMethods.External, user.Provider);
var result = new AuthenticateResult(p);
return Task.FromResult(result);
}