/// <inheritdoc />
public async Task <AuthenticationResult> ExecuteAsync(CancellationToken cancellationToken)
{
if (_authParameters.AuthorizationType != AuthorizationType.AuthCode)
{
var cacheResult = await TryReadCacheAsync(cancellationToken).ConfigureAwait(false);
if (cacheResult.IsCacheReadSuccessful)
{
return(AuthenticationResult.Create(cacheResult.TokenResponse, cacheResult.Account));
}
}
TokenResponse tokenResponse;
switch (_authParameters.AuthorizationType)
{
case AuthorizationType.AuthCode:
tokenResponse = await AuthCodeExchangeAsync(cancellationToken).ConfigureAwait(false);
break;
case AuthorizationType.UsernamePassword:
tokenResponse = await UsernamePasswordExchangeAsync(cancellationToken).ConfigureAwait(false);
break;
case AuthorizationType.WindowsIntegratedAuth:
tokenResponse = await WindowsIntegratedAuthExchangeAsync(cancellationToken).ConfigureAwait(false);
break;
case AuthorizationType.Certificate:
tokenResponse = await CertificateExchangeAsync(cancellationToken).ConfigureAwait(false);
break;
case AuthorizationType.None:
throw new InvalidOperationException("msal background request called with None type");
default:
throw new InvalidOperationException("unknown or unsupported auth type");
}
var account = await _cacheManager.CacheTokenResponseAsync(tokenResponse).ConfigureAwait(false);
return(AuthenticationResult.Create(tokenResponse, account));
}
