private TimeSpan DefaultTimeout { get; } = new TimeSpan(0, 0, 0, 0, 500); // FUTURE use configuration value
public LoginAttemptController(
LoginAttemptClient loginAttemptClient,
UserAccountClient userAccountClient,
MemoryUsageLimiter memoryUsageLimiter,
BlockingAlgorithmOptions blockingOptions,
IStableStore stableStore)
{
_options = blockingOptions;//optionsAccessor.Options;
_stableStore = stableStore;
_passwordPopularityTracker = new PasswordPopularityTracker("FIXME-uniquekeyfromconfig"
//FIXME -- use configuration to get options here"FIXME-uniquekeyfromconfig", thresholdRequiredToTrackPreciseOccurrences: 10);
);
_loginAttemptCache = new FixedSizeLruCache<string, LoginAttempt>(80000); // FIXME -- use configuration file for size
_loginAttemptsInProgress = new Dictionary<string, Task<LoginAttempt>>();
_ipHistoryCache = new SelfLoadingCache<IPAddress, IpHistory>(
(id, cancellationToken) =>
{
return Task.Run(() => new IpHistory(id), cancellationToken);
// FUTURE -- option to load from stable store
});
_loginAttemptClient = loginAttemptClient;
_loginAttemptClient.SetLocalLoginAttemptController(this);
SetUserAccountClient(userAccountClient);
memoryUsageLimiter.OnReduceMemoryUsageEventHandler += ReduceMemoryUsage;
}
public UserAccountController(
UserAccountClient userAccountClient,
LoginAttemptClient loginAttemptClient,
MemoryUsageLimiter memoryUsageLimiter,
BlockingAlgorithmOptions options,
IStableStore stableStore,
LimitPerTimePeriod[] creditLimits)
{
// _options = optionsAccessor.Options;
_options = options;
_stableStore = stableStore;
_userAccountClient = userAccountClient;
CreditLimits = creditLimits;
_userAccountCache = new SelfLoadingCache<string, UserAccount>(_stableStore.ReadAccountAsync);
SetLoginAttemptClient(loginAttemptClient);
userAccountClient.SetLocalUserAccountController(this);
memoryUsageLimiter.OnReduceMemoryUsageEventHandler += ReduceMemoryUsage;
}
public static TestConfiguration InitTest(BlockingAlgorithmOptions options = default(BlockingAlgorithmOptions))
{
if (options == null)
options = new BlockingAlgorithmOptions();
TestConfiguration configuration = new TestConfiguration();
configuration.MyBlockingAlgorithmOptions = options ?? new BlockingAlgorithmOptions();
//configuration.MyResponsibleHosts = new MaxWeightHashing<RemoteHost>("FIXME-uniquekeyfromconfig");
//RemoteHost localHost = new RemoteHost { Uri = new Uri("http://localhost:80") };
//configuration.MyResponsibleHosts.Add("localhost", localHost);
//IStableStore stableStore = configuration.StableStore = new MemoryOnlyStableStore();
//configuration.MyLoginAttemptClient = new LoginAttemptClient(configuration.MyResponsibleHosts, localHost);
MemoryUsageLimiter memoryUsageLimiter = new MemoryUsageLimiter();
BinomialLadderFilter localPasswordBinomialLadderFilter =
new BinomialLadderFilter(options.NumberOfBitsInBinomialLadderFilter_N, options.HeightOfBinomialLadder_H);
//MultiperiodFrequencyTracker<string> localPasswordFrequencyTracker =
// new MultiperiodFrequencyTracker<string>(
// options.NumberOfPopularityMeasurementPeriods,
// options.LengthOfShortestPopularityMeasurementPeriod,
// options.FactorOfGrowthBetweenPopularityMeasurementPeriods);
configuration.MyAccountFactory = new MemoryOnlyUserAccountFactory();
configuration.MemUserAccountController = new MemoryUserAccountController();
LoginAttemptController<MemoryUserAccount> myLoginAttemptController =
new LoginAttemptController<MemoryUserAccount>(
new MemoryUserAccountControllerFactory(),
configuration.MyAccountFactory,
localPasswordBinomialLadderFilter,
memoryUsageLimiter, configuration.MyBlockingAlgorithmOptions);
configuration.MyLoginAttemptClient = myLoginAttemptController;
//configuration.MyLoginAttemptClient.SetLocalLoginAttemptController(myLoginAttemptController);
return configuration;
}
public Simulator(ExperimentalConfiguration myExperimentalConfiguration, BlockingAlgorithmOptions options = default(BlockingAlgorithmOptions))
{
MyExperimentalConfiguration = myExperimentalConfiguration;
if (options == null)
options = new BlockingAlgorithmOptions();
CreditLimits = new[]
{
// 3 per hour
new LimitPerTimePeriod(new TimeSpan(1, 0, 0), 3f),
// 6 per day (24 hours, not calendar day)
new LimitPerTimePeriod(new TimeSpan(1, 0, 0, 0), 6f),
// 10 per week
new LimitPerTimePeriod(new TimeSpan(6, 0, 0, 0), 10f),
// 15 per month
new LimitPerTimePeriod(new TimeSpan(30, 0, 0, 0), 15f)
};
//We are testing with local server now
MyResponsibleHosts = new MaxWeightHashing<RemoteHost>("FIXME-uniquekeyfromconfig");
//configuration.MyResponsibleHosts.Add("localhost", new RemoteHost { Uri = new Uri("http://localhost:80"), IsLocalHost = true });
RemoteHost localHost = new RemoteHost { Uri = new Uri("http://localhost:80") };
MyResponsibleHosts.Add("localhost", localHost);
MyUserAccountClient = new UserAccountClient(MyResponsibleHosts, localHost);
MyLoginAttemptClient = new LoginAttemptClient(MyResponsibleHosts, localHost);
MemoryUsageLimiter memoryUsageLimiter = new MemoryUsageLimiter();
MyUserAccountController = new UserAccountController(MyUserAccountClient,
MyLoginAttemptClient, memoryUsageLimiter, options, StableStore,
CreditLimits);
MyLoginAttemptController = new LoginAttemptController(MyLoginAttemptClient, MyUserAccountClient,
memoryUsageLimiter, options, StableStore);
MyUserAccountController.SetLoginAttemptClient(MyLoginAttemptClient);
MyUserAccountClient.SetLocalUserAccountController(MyUserAccountController);
MyLoginAttemptController.SetUserAccountClient(MyUserAccountClient);
MyLoginAttemptClient.SetLocalLoginAttemptController(MyLoginAttemptController);
//fix outofmemory bug by setting the loginattempt field to null
StableStore.LoginAttempts = null;
}
public static TestConfiguration InitTest(BlockingAlgorithmOptions options = default(BlockingAlgorithmOptions))
{
TestConfiguration configuration = new TestConfiguration();
if (options == null)
options = new BlockingAlgorithmOptions();
configuration.CreditLimits = new[]
{
// 3 per hour
new LimitPerTimePeriod(new TimeSpan(1, 0, 0), 3f),
// 6 per day (24 hours, not calendar day)
new LimitPerTimePeriod(new TimeSpan(1, 0, 0, 0), 6f),
// 10 per week
new LimitPerTimePeriod(new TimeSpan(6, 0, 0, 0), 10f),
// 15 per month
new LimitPerTimePeriod(new TimeSpan(30, 0, 0, 0), 15f)
};
configuration.MyResponsibleHosts = new MaxWeightHashing<RemoteHost>("FIXME-uniquekeyfromconfig");
RemoteHost localHost = new RemoteHost { Uri = new Uri("http://localhost:80") };
configuration.MyResponsibleHosts.Add("localhost", localHost);
IStableStore stableStore = configuration.StableStore = new MemoryOnlyStableStore();
configuration.MyUserAccountClient = new UserAccountClient(configuration.MyResponsibleHosts, localHost);
configuration.MyLoginAttemptClient = new LoginAttemptClient(configuration.MyResponsibleHosts, localHost);
MemoryUsageLimiter memoryUsageLimiter = new MemoryUsageLimiter();
configuration.MyUserAccountController = new UserAccountController(configuration.MyUserAccountClient,
configuration.MyLoginAttemptClient, memoryUsageLimiter, options, stableStore,
configuration.CreditLimits);
LoginAttemptController myLoginAttemptController = new LoginAttemptController(configuration.MyLoginAttemptClient, configuration.MyUserAccountClient,
memoryUsageLimiter, options, stableStore);
configuration.MyUserAccountController.SetLoginAttemptClient(configuration.MyLoginAttemptClient);
configuration.MyUserAccountClient.SetLocalUserAccountController(configuration.MyUserAccountController);
myLoginAttemptController.SetUserAccountClient(configuration.MyUserAccountClient);
configuration.MyLoginAttemptClient.SetLocalLoginAttemptController(myLoginAttemptController);
return configuration;
}
/// <summary>
/// When memory runs low, call this function to remove a fraction of the space used by non-fixed-size data structures
/// (In this case, it is the history of information about IP addresses)
/// </summary>
public void ReduceMemoryUsage(object sender, MemoryUsageLimiter.ReduceMemoryUsageEventParameters parameters)
{
_ipHistoryCache.RecoverSpace(parameters.FractionOfMemoryToTryToRemove);
}