/// <summary> /// Retrieves the display name. /// </summary> /// <param name="user">The user.</param> /// <returns></returns> protected virtual string GetDisplayName(InMemoryUser user) { var nameClaim = user.Claims.FirstOrDefault(x => x.Type == Constants.ClaimTypes.Name); if (nameClaim != null) { return(nameClaim.Value); } return(user.Username); }
/// <summary> /// This method gets called when the user uses an external identity provider to authenticate. /// </summary> /// <param name="externalUser">The external user.</param> /// <param name="message">The signin message.</param> /// <returns> /// The authentication result. /// </returns> public virtual Task <AuthenticateResult> AuthenticateExternalAsync(ExternalIdentity externalUser, SignInMessage message) { var query = from u in _users where u.Provider == externalUser.Provider && u.ProviderId == externalUser.ProviderId select u; var user = query.SingleOrDefault(); if (user == null) { string displayName; var name = externalUser.Claims.FirstOrDefault(x => x.Type == Constants.ClaimTypes.Name); if (name == null) { displayName = externalUser.ProviderId; } else { displayName = name.Value; } user = new InMemoryUser { Subject = CryptoRandom.CreateUniqueId(), Provider = externalUser.Provider, ProviderId = externalUser.ProviderId, Username = displayName, 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)); }