MSAL - PublicClientApplication - GetAccountsAsync() doesn't return any Accounts in windows MAUI

Vaibhav Methuku 80 Reputation points
2023-10-05T05:18:26.3+00:00

The MAUI windows app MSAL - PublicClientApplication - GetAccountsAsync() doesn't return any Accounts.

I followed the process OS integrating the MSAL as per the Microsoft document.

Here is the code snippet:

try 

{ 
	IEnumerable accounts = await mPublicClientApplication.GetAccountsAsync(); 
	IAccount firstAccount = accounts.FirstOrDefault();  

	result = await mPublicClientApplication.AcquireTokenSilent(mIndustrialAppsADOptions.Scopes, firstAccount).ExecuteAsync(); 

	return result;
 } 

catch(MsalUiRequiredException msre)

 { 
try 

{ 

if(Device.RuntimePlatform == Device.UWP) 

	{ 

		result = await     mPublicClientApplication.AcquireTokenInteractive(mIndustrialAppsADOptions.Scopes) .WithUseEmbeddedWebView(true).ExecuteAsync(); 
else 	
{  		
 	result = await  mPublicClientApplication.AcquireTokenInteractive(mIndustrialAppsADOptions.Scopes) 				  .WithUseEmbeddedWebView(true) 				  .WithParentActivityOrWindow(RootViewController).ExecuteAsync(); 	}   	
	return result; 
} 
   catch(MsalException ex)
   {					 	
		 return null; 
   } 
catch(Exception exc)
 {	
   return null; 
  } 
}  



` public void RegisterTypes(IContainerRegistry containerRegistry)
{
IIndustrialAppsADOptions options = ((IContainerProvider)containerRegistry).Resolve();
string authority = options.Authority;

		if(Device.RuntimePlatform == Device.UWP)
		{
			mPublicClientApplication = PublicClientApplicationBuilder.Create(options.ClientId)
															.WithAuthority(authority)																
															.WithRedirectUri(SpecialRedirectUri?? $"msal{options.ClientId}://auth")
															.Build();
		
		}
		else if(Device.RuntimePlatform == Device.Android)
		{
			mPublicClientApplication = PublicClientApplicationBuilder.Create(options.ClientId)
															.WithAuthority(authority)
															.WithRedirectUri($"msal{options.ClientId}://auth")
															.Build();
		}
		else
		{
			 mPublicClientApplication = 	PublicClientApplicationBuilder.Create(options.ClientId)
															.WithAuthority(authority)
															.WithIosKeychainSecurityGroup(AppSettingsManager.Settings["IOS_KEYCHAIN_SECURITY_GROUP"]) //The ("*") will be replaced with ("com.microsoft.adalcache") during Production release
															.WithRedirectUri($"msal{options.ClientId}://auth")
															.Build();
		}
				
		containerRegistry.RegisterInstance(mPublicClientApplication);					
		containerRegistry.Register<IAuthenticationService, AuthenticationService>();
	}`

Steps to Reproduce

  • Create MAUI app
  • Add the MSAL authentication
  • When user Runs the application in Windows Platform for the first time Application asks for the MSAL login -> User enters the credentials and validates successfully
  • Close the app
  • Second time when user opens the app, it is again asking for the MSAL login.

Expected Behavior :
It should not ask for the Login again. Instead, It should get the Account information which is previously logged in.

Actual Behavior :

It is asking the user MSAL authentication every time when open the application.

But the same is working fine in the Android Platform.

It is only broken in Windows Platform

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