protected override async Task <AuthenticationTicket> AuthenticateCoreAsync() { AuthenticationProperties properties = null; var error = "Unknown"; try { string code = null; string state = null; var query = Request.Query; var values = query.GetValues("code"); if (values != null && values.Count == 1) { code = values[0]; } values = query.GetValues("error"); if (values != null && values.Count == 1) { error = 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(properties, _logger)) { return(new AuthenticationTicket(null, properties)); } var requestPrefix = Request.Scheme + "://" + Request.Host; var redirectUri = requestPrefix + Request.PathBase + Options.CallbackPath; // Request the token var requestMessage = new HttpRequestMessage(HttpMethod.Post, Options.Endpoints.TokenEndpoint); requestMessage.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); requestMessage.Headers.Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(Encoding.ASCII.GetBytes( $"{Options.ClientId}:{Options.ClientSecret}"))); requestMessage.Content = new FormUrlEncodedContent(new List <KeyValuePair <string, string> > { new KeyValuePair <string, string>("grant_type", "authorization_code"), new KeyValuePair <string, string>("code", code), new KeyValuePair <string, string>("redirect_uri", redirectUri), }); string text = ""; try { var tokenResponse = await _httpClient.SendAsync(requestMessage); tokenResponse.EnsureSuccessStatusCode(); text = await tokenResponse.Content.ReadAsStringAsync(); } catch (HttpRequestException ex) { if (ex.InnerException is System.Net.WebException && ex.InnerException.Message.Contains("TLS")) { if (!System.Net.ServicePointManager.SecurityProtocol.HasFlag(System.Net.SecurityProtocolType.Tls12)) { throw new System.Net.WebException("PayPal requires TLS v1.2. TLS v1.0 and v1.1 connections will be refused. Set System.Net.ServicePointManager.SecurityProtocol = System.Net.ServicePointManager.SecurityProtocol | System.Net.SecurityProtocolType.Tls12", ex.InnerException); } } throw; } // Deserializes the token response var response = JsonConvert.DeserializeObject <dynamic>(text); var accessToken = (string)response.access_token; var refreshToken = (string)response.refresh_token; // Get the PayPal user var userRequest = new HttpRequestMessage(HttpMethod.Get, Options.Endpoints.UserInfoEndpoint); userRequest.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); userRequest.Headers.Authorization = new AuthenticationHeaderValue("Bearer", accessToken); var userResponse = await _httpClient.SendAsync(userRequest, Request.CallCancelled); userResponse.EnsureSuccessStatusCode(); text = await userResponse.Content.ReadAsStringAsync(); var user = JObject.Parse(text); var context = new PayPalAuthenticatedContext(Context, user, accessToken, refreshToken) { Identity = new ClaimsIdentity(Options.AuthenticationType, ClaimsIdentity.DefaultNameClaimType, ClaimsIdentity.DefaultRoleClaimType) }; if (!string.IsNullOrEmpty(context.Id)) { context.Identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, context.Id, XmlSchemaString, Options.AuthenticationType)); } if (!string.IsNullOrEmpty(context.Email)) { context.Identity.AddClaim(new Claim(ClaimTypes.Email, context.Email, XmlSchemaString, Options.AuthenticationType)); } if (!string.IsNullOrEmpty(context.Name)) { context.Identity.AddClaim(new Claim("urn:paypal:name", context.Name, XmlSchemaString, Options.AuthenticationType)); } context.Properties = properties; await Options.Provider.Authenticated(context); return(new AuthenticationTicket(context.Identity, context.Properties)); } catch (Exception ex) { _logger.WriteError(ex.Message + " : " + error); } return(new AuthenticationTicket(null, properties)); }
/// <summary> /// Invoked whenever PayPal successfully 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(PayPalAuthenticatedContext context) { return OnAuthenticated(context); }
/// <summary> /// Invoked whenever PayPal successfully 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(PayPalAuthenticatedContext context) { return(OnAuthenticated(context)); }