protected override async Task <AuthenticationTicket> AuthenticateCoreAsync()
{
AuthenticationProperties properties = null;
try
{
string code = null;
string state = null;
IReadableStringCollection query = Request.Query;
IList <string> values = query.GetValues("code");
if (values != null && values.Count == 1)
{
code = values[0];
}
values = query.GetValues("state");
if (values != null && values.Count == 1)
{
state = values[0];
}
properties = Options.StateDataFormat.Unprotect(state);
if (properties == null)
{
return(null);
}
// OAuth2 10.12 CSRF
if (!ValidateCorrelationId(Options.CookieManager, properties, _logger))
{
return(new AuthenticationTicket(null, properties));
}
string requestPrefix = Request.Scheme + "://" + Request.Host;
string redirectUri = requestPrefix + Request.PathBase + Options.CallbackPath;
// Build up the body for the token request
var body = new List <KeyValuePair <string, string> >();
body.Add(new KeyValuePair <string, string>("grant_type", "authorization_code"));
body.Add(new KeyValuePair <string, string>("code", code));
body.Add(new KeyValuePair <string, string>("redirect_uri", redirectUri));
body.Add(new KeyValuePair <string, string>("client_id", Options.ClientId));
body.Add(new KeyValuePair <string, string>("client_secret", Options.ClientSecret));
// Request the token
HttpResponseMessage tokenResponse =
await _httpClient.PostAsync(Options.TokenEndpoint, new FormUrlEncodedContent(body));
tokenResponse.EnsureSuccessStatusCode();
string text = await tokenResponse.Content.ReadAsStringAsync();
// Deserializes the token response
JObject response = JObject.Parse(text);
string idToken = response.Value <string>("id_token");
if (string.IsNullOrWhiteSpace(idToken))
{
_logger.WriteWarning("Id token was not found");
return(new AuthenticationTicket(null, properties));
}
string accessToken = response.Value <string>("access_token");
if (string.IsNullOrWhiteSpace(accessToken))
{
_logger.WriteWarning("Access token was not found");
return(new AuthenticationTicket(null, properties));
}
string refreshToken = response.Value <string>("refresh_token");
if (string.IsNullOrWhiteSpace(refreshToken))
{
_logger.WriteWarning("Refresh token was not found");
return(new AuthenticationTicket(null, properties));
}
int expiresIn = response.Value <int>("expires_in");
//open up id_token
var handler = new JwtSecurityTokenHandler();
var token = handler.ReadToken(idToken) as JwtSecurityToken;
var id = token.Claims.First(c => c.Type == "sub").Value;
var email = token.Claims.First(c => c.Type == "email").Value;
var context = new NortonAuthenticatedContext(Context, id, email, idToken, accessToken, refreshToken, expiresIn);
context.Identity = new ClaimsIdentity(
Options.AuthenticationType,
ClaimsIdentity.DefaultNameClaimType,
ClaimsIdentity.DefaultRoleClaimType);
if (!string.IsNullOrEmpty(context.Id))
{
context.Identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, context.Id,
ClaimValueTypes.String, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.Email))
{
context.Identity.AddClaim(new Claim(ClaimTypes.Email, context.Email, ClaimValueTypes.String,
Options.AuthenticationType));
}
context.Properties = properties;
await Options.Provider.Authenticated(context);
return(new AuthenticationTicket(context.Identity, context.Properties));
}
catch (Exception ex)
{
_logger.WriteError("Authentication failed", ex);
return(new AuthenticationTicket(null, properties));
}
}
/// <summary>
/// Invoked whenever Norton succesfully authenticates a user
/// </summary>
/// <param name="context">Contains information about the login session as well as the user <see cref="System.Security.Claims.ClaimsIdentity"/>.</param>
/// <returns>A <see cref="Task"/> representing the completed operation.</returns>
public virtual Task Authenticated(NortonAuthenticatedContext context)
{
return(OnAuthenticated(context));
}
