예제 #1
0
        protected override async Task <AuthenticationTicket> AuthenticateCoreAsync()
        {
            AuthenticationProperties properties = null;

            try
            {
                IReadableStringCollection query = Request.Query;
                string protectedRequestToken    = Request.Cookies[StateCookie];

                RequestToken requestToken = Options.StateDataFormat.Unprotect(protectedRequestToken);

                if (requestToken == null)
                {
                    _logger.WriteWarning("Invalid state");
                    return(null);
                }

                properties = requestToken.Properties;

                string returnedToken = query.Get("oauth_token");
                if (string.IsNullOrWhiteSpace(returnedToken))
                {
                    _logger.WriteWarning("Missing oauth_token");
                    return(new AuthenticationTicket(null, properties));
                }

                if (returnedToken != requestToken.Token)
                {
                    _logger.WriteWarning("Unmatched token");
                    return(new AuthenticationTicket(null, properties));
                }

                string oauthVerifier = query.Get("oauth_verifier");
                if (string.IsNullOrWhiteSpace(oauthVerifier))
                {
                    _logger.WriteWarning("Missing or blank oauth_verifier");
                    return(new AuthenticationTicket(null, properties));
                }

                AccessToken accessToken = await ObtainAccessTokenAsync(Options.ConsumerKey, Options.ConsumerSecret, requestToken, oauthVerifier);

                var context = new TwitterAuthenticatedContext(Context, accessToken.UserId, accessToken.ScreenName, accessToken.Token, accessToken.TokenSecret);

                context.Identity = new ClaimsIdentity(
                    new[]
                {
                    new Claim(ClaimTypes.NameIdentifier, accessToken.UserId, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
                    new Claim(ClaimTypes.Name, accessToken.ScreenName, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
                    new Claim("urn:twitter:userid", accessToken.UserId, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
                    new Claim("urn:twitter:screenname", accessToken.ScreenName, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType)
                },
                    Options.AuthenticationType,
                    ClaimsIdentity.DefaultNameClaimType,
                    ClaimsIdentity.DefaultRoleClaimType);
                context.Properties = requestToken.Properties;

                Response.Cookies.Delete(StateCookie);

                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));
            }
        }
예제 #2
0
 /// <summary>
 /// Invoked whenever Twitter 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(TwitterAuthenticatedContext context)
 {
     return(OnAuthenticated(context));
 }