How can i get the 'Azure Jwt Bearer Token'RSS

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  pathipati

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  443 Posts

  How can i get the 'Azure Jwt Bearer Token'

  Jul 18, 2018 09:49 AM|pathipati|LINK

  I am calling one of the REST API, this API required 'Azure Jwt Bearer Token'. I am using ASP.NET WebForms, Please let me know how can i get this.

  Below is the configuration i am using in my Startup.cs

  public void Configuration(IAppBuilder app)
          {
              app.SetDefaultSignInAsAuthenticationType(CookieAuthenticationDefaults.AuthenticationType);
  
              app.UseCookieAuthentication(new CookieAuthenticationOptions());
              app.UseOpenIdConnectAuthentication(
                  new OpenIdConnectAuthenticationOptions
                  {
                      // Sets the ClientId, authority, RedirectUri as obtained from web.config
                      ClientId = clientId,
                      Authority = authority,
                      RedirectUri = redirectUri,
  
                      // PostLogoutRedirectUri is the page that users will be redirected to after sign-out. In this case, it is using the home page
                      PostLogoutRedirectUri = redirectUri,
                      //Scope = OpenIdConnectScope.,
                      // 
                      Scope = Convert.ToString(ConfigurationManager.AppSettings["Azure.Scope"]),
                      // ResponseType is set to request the id_token - which contains basic information about the signed-in user
                      ResponseType = OpenIdConnectResponseType.Code,
                      // ValidateIssuer set to false to allow personal and work accounts from any organization to sign in to your application
                      // To only allow users from a single organizations, set ValidateIssuer to true and 'tenant' setting in web.config to the tenant name
                      // To allow users from only a list of specific organizations, set ValidateIssuer to true and use ValidIssuers parameter 
                      TokenValidationParameters = new TokenValidationParameters()
                      {
                          ValidateIssuer = false
                      },
                      // OpenIdConnectAuthenticationNotifications configures OWIN to send notification of failed authentications to OnAuthenticationFailed method
                      Notifications = new OpenIdConnectAuthenticationNotifications
                      {
                          AuthenticationFailed = OnAuthenticationFailed
                      }
                  }
              );
          }

• • Reply
  Brando ZWZ

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  2492 Posts

  Re: How can i get the 'Azure Jwt Bearer Token'

  Jul 19, 2018 02:22 AM|Brando ZWZ|LINK

  Hi pathipati,

  According to your description, I suggest you could use the AuthorizationCodeReceived event to exchange the Auth code for an Access Token.

  More details, you could refer to below codes:

  app.UseOpenIdConnectAuthentication(
      new OpenIdConnectAuthenticationOptions
      {
          ClientId = clientId,
          Authority = Authority,
          Notifications = new OpenIdConnectAuthenticationNotifications()
          {
              AuthorizationCodeReceived = (context) =>
             {
                 var code = context.Code;
                 ClientCredential credential = new ClientCredential(clientId, appKey);
                 string tenantID = context.AuthenticationTicket.Identity.FindFirst("http://schemas.microsoft.com/identity/claims/tenantid").Value;
                 string signedInUserID = context.AuthenticationTicket.Identity.FindFirst(ClaimTypes.NameIdentifier).Value;
                 AuthenticationContext authContext = new AuthenticationContext(string.Format("https://login.windows.net/{0}", tenantID), new EFADALTokenCache(signedInUserID));
                 AuthenticationResult result = authContext.AcquireTokenByAuthorizationCode(
                             code, new Uri(HttpContext.Current.Request.Url.GetLeftPart(UriPartial.Path)), credential, graphResourceID);
  
                 return Task.FromResult(0);
              },
              ...
      }

  Azure AD sample:

  https://github.com/Azure-Samples/active-directory-dotnet-webapp-webapi-multitenant-openidconnect/blob/master/TodoListWebApp/App_Start/Startup.Auth.cs#L46

  Article:

  http://www.cloudidentity.com/blog/2014/05/11/openid-connect-and-ws-fed-owin-components-design-principles-object-model-and-pipeline/ 

  Best Regards,

  Brando