/// <summary>
/// Shared method to create an IConfidentialClientApplication from configuration and attach the application's token cache implementation
/// </summary>
/// <param name="currentUser">The current ClaimsPrincipal</param>
public static IConfidentialClientApplication BuildConfidentialClientApplication(ClaimsPrincipal currentUser)
{
IConfidentialClientApplication clientapp = ConfidentialClientApplicationBuilder.Create(B2C_Globals.ClientId)
.WithClientSecret(B2C_Globals.ClientSecret)
.WithRedirectUri(B2C_Globals.RedirectUri)
.WithB2CAuthority(B2C_Globals.Authority)
.Build();
MSALPerUserMemoryTokenCache userTokenCache = new MSALPerUserMemoryTokenCache(clientapp.UserTokenCache, currentUser ?? ClaimsPrincipal.Current);
return(clientapp);
}
/// <summary>
/// Common method to remove the cached tokens for the currently signed in user
/// </summary>
/// <returns></returns>
public static async Task ClearUserTokenCache()
{
IConfidentialClientApplication clientapp = ConfidentialClientApplicationBuilder.Create(B2C_Globals.ClientId)
.WithB2CAuthority(B2C_Globals.Authority)
.WithClientSecret(B2C_Globals.ClientSecret)
.WithRedirectUri(B2C_Globals.RedirectUri)
.Build();
// We only clear the user's tokens.
MSALPerUserMemoryTokenCache userTokenCache = new MSALPerUserMemoryTokenCache(clientapp.UserTokenCache);
var userAccounts = await clientapp.GetAccountsAsync();
foreach (var account in userAccounts)
{
//Remove the users from the MSAL's internal cache
await clientapp.RemoveAsync(account);
}
userTokenCache.Clear();
}