public async Task <PasswordTestResult> TestPassword(string username, string password)
{
try
{
UserPrincipal up = await WindowsSamController.GetUserPrincipal(username);
PasswordTestResultCode result = (PasswordTestResultCode)(int)FilterInterface.TestPassword(up.SamAccountName, up.DisplayName, password, false);
if (result != PasswordTestResultCode.Approved)
{
Logger.Warn($"User {username} attempted to set a password that was rejected by Lithnet Password Protection with the following code: {result}");
}
return(new PasswordTestResult(result));
}
catch (NotFoundException)
{
throw;
}
catch (Exception ex)
{
Logger.Error(ex, "An unexpected error occurred checking the password against the Lithnet Password Protection service");
if (PasswordChangeConfigSection.Configuration.PasswordTesting.LppIgnoreErrors)
{
return(new PasswordTestResult());
}
else
{
return(new PasswordTestResult(PasswordTestResultCode.GeneralError));
}
}
}
/// <summary>
/// Connect to the Security Account Manager service and retrieve the user principal
/// structure for a given username or user email address.
/// </summary>
/// <param name="userOrEmail">User login name or account email address</param>
/// <returns>User Principal data structure if found</returns>
public static async Task <UserPrincipal> GetUserPrincipal(string userOrEmail)
{
ContextOptions options = ContextOptions.Negotiate | ContextOptions.Sealing | ContextOptions.Signing;
if (ConfigurationManager.AppSettings["ad-bind-force-ssl"] == "1")
{
options = ContextOptions.Negotiate | ContextOptions.SecureSocketLayer;
}
using (PrincipalContext context = new PrincipalContext(ContextType.Domain, null, null, options))
{
// Try to retrieve the user principal data from the security account manager
UserPrincipal userItem = null;
if (userOrEmail.IndexOf('@') >= 0)
{
return(await WindowsSamController.GetUserPrincipalByUpn(userOrEmail, context) ??
await GetUserPrincipalByEmail(userOrEmail, context) ??
throw new NotFoundException());
}
else
{
userItem = await Task.Run(() => UserPrincipal.FindByIdentity(context, IdentityType.SamAccountName, userOrEmail));
}
// If we couldn't find a matching account, throw an error to the calling routine
if (userItem == null)
{
throw new NotFoundException();
}
// Otherwise, return the principal structure located
return(userItem);
}
}