public LoginAttemptController(
IUserAccountControllerFactory <TUserAccount> userAccountControllerFactory,
IUserAccountRepositoryFactory <TUserAccount> userAccountRepositoryFactory,
IBinomialLadderFilter binomialLadderFilter,
MemoryUsageLimiter memoryUsageLimiter,
BlockingAlgorithmOptions blockingOptions
)
{
_options = blockingOptions;
_binomialLadderFilter = binomialLadderFilter;
_userAccountRepositoryFactory = userAccountRepositoryFactory;
_userAccountControllerFactory = userAccountControllerFactory;
_recentIncorrectPasswords = new AgingMembershipSketch(blockingOptions.AgingMembershipSketchTables, blockingOptions.AgingMembershipSketchTableSize);
_ipHistoryCache = new SelfLoadingCache <IPAddress, IpHistory>(address => new IpHistory(address, _options));
memoryUsageLimiter.OnReduceMemoryUsageEventHandler += ReduceMemoryUsage;
}
/// <summary>
/// Construct the controller.
/// </summary>
/// <param name="userAccountControllerFactory">A factory for creating IUserAccountController interfaces for managing user account records.</param>
/// <param name="userAccountRepositoryFactory">A factory for creating IAccountRepository interfaces for obtaining user account records.</param>
/// <param name="binomialLadderFilter">A binomial ladder frequency that the controller should use to track frequently-guessed passwords.</param>
/// <param name="memoryUsageLimiter">A memory usage limiter that the controller should register into so that when memory is tight,
/// the controller can do its part to free up cached items it may not need anymore.</param>
/// <param name="blockingOptions">Configuration options.</param>
public LoginAttemptController(
IUserAccountControllerFactory <TUserAccount> userAccountControllerFactory,
IUserAccountRepositoryFactory <TUserAccount> userAccountRepositoryFactory,
IBinomialLadderFilter binomialLadderFilter,
MemoryUsageLimiter memoryUsageLimiter,
BlockingAlgorithmOptions blockingOptions
)
{
// Copy parameters into the controller.
_options = blockingOptions;
_binomialLadderFilter = binomialLadderFilter;
_userAccountRepositoryFactory = userAccountRepositoryFactory;
_userAccountControllerFactory = userAccountControllerFactory;
// Create a membership sketch to track username/password pairs that have failed.
_recentIncorrectPasswords = new AgingMembershipSketch(blockingOptions.AgingMembershipSketchTables, blockingOptions.AgingMembershipSketchTableSize);
// Create a cache of records storing information about the behavior of IPs that have issued login attempts.
_ipHistoryCache = new SelfLoadingCache <IPAddress, IpHistory>(address => new IpHistory(address, _options));
// When memory is low, the memeory usage limiter should call the ReduceMemoryUsage method of this controller.
memoryUsageLimiter.OnReduceMemoryUsageEventHandler += ReduceMemoryUsage;
}
