/// <summary>
/// Dumps the contents of every input assertion list that it can
/// </summary>
/// <returns>Status code. 0 => success, non-zero => failure</returns>
private int DumpInputAssertionLists()
{
Console.Error.WriteLine("\nStarting dump of input assertion lists");
// Start timing
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
InputAssertionListChecker inputAssertionListChecker = new InputAssertionListChecker(m_cache);
ConcurrentDictionary <CacheError, int> cacheErrors = new ConcurrentDictionary <CacheError, int>();
IEnumerable <InputAssertionList> inputAssertionLists;
Func <string, bool> inputListCheck;
if (m_inputAssertionListDumpMustIncludeRegex == null)
{
if (m_inputAssertionListDumpMustNotIncludeRegex == null)
{
inputListCheck = (inputList) => true;
}
else
{
inputListCheck = (inputList) => !m_inputAssertionListDumpMustNotIncludeRegex.IsMatch(inputList);
}
}
else
{
if (m_inputAssertionListDumpMustNotIncludeRegex == null)
{
inputListCheck = (inputList) => m_inputAssertionListDumpMustIncludeRegex.IsMatch(inputList);
}
else
{
inputListCheck = (inputList) => m_inputAssertionListDumpMustIncludeRegex.IsMatch(inputList) && !m_inputAssertionListDumpMustNotIncludeRegex.IsMatch(inputList);
}
}
if (m_inputWeakFingerprints.Count > 0)
{
// Get lists with user provided weak fingerprints
Console.Error.WriteLine("\nChecking through the " + m_inputWeakFingerprints.Count + " provided weak fingerprints");
inputAssertionLists = inputAssertionListChecker.GetSuspectInputAssertionLists(m_inputWeakFingerprints, inputListCheck, cacheErrors, m_weakFingerprintsFound);
}
else
{
// Get lists through sessions
try
{
Console.Error.WriteLine("\nChecking through the sessions using the following regex: " + m_sessionRegex.ToString());
inputAssertionLists = inputAssertionListChecker.GetSuspectInputAssertionLists(m_sessionRegex, inputListCheck, cacheErrors, m_weakFingerprintsFound);
}
catch (NotImplementedException e)
{
// Not all cache implementations implement all of the interface methods
WriteError("Exception caught: " + e.Message);
WriteError("The implementation of the specified cache does not implement all required methods for this tool to be able to perform a check.");
return(1);
}
}
// Output input assertion lists
List <StrongFingerprint> fingerprints = new List <StrongFingerprint>();
foreach (var inputAssertion in inputAssertionLists)
{
fingerprints.Add(inputAssertion.StrongFingerprintValue);
m_outputDestination.WriteLine(string.Format(CultureInfo.InvariantCulture, "StrongFingerprint: {0}\n{1}\n",
inputAssertion.StrongFingerprintValue,
inputAssertion.InputAssertionListContents));
}
// It is not until here where the summary information is complete.
string summary;
if (inputAssertionListChecker.NumSessionsChecked > 0)
{
summary = string.Format(CultureInfo.InvariantCulture, "\nFound {0} matching fingerprints out of {1} unique input lists from {2} sessions\n",
fingerprints.Count,
inputAssertionListChecker.NumInputListsChecked,
inputAssertionListChecker.NumSessionsChecked);
}
else
{
summary = string.Format(CultureInfo.InvariantCulture, "\nFound {0} matching fingerprints out of {1} unique input lists\n",
fingerprints.Count,
inputAssertionListChecker.NumInputListsChecked);
}
m_outputDestination.WriteLine(summary);
if (inputAssertionListChecker.NumSessionsChecked > 0)
{
foreach (var fingerprint in fingerprints)
{
var sessionIds = inputAssertionListChecker.GetSessionsWithFingerprint(fingerprint).ToList();
if (sessionIds.Count > 0)
{
m_outputDestination.WriteLine("{0} sessions contain the strong fingerprint {1}:", sessionIds.Count, fingerprint);
foreach (var sessionId in sessionIds)
{
m_outputDestination.WriteLine(" Session: {0}", sessionId);
}
m_outputDestination.WriteLine();
}
}
}
// Output any cache errors found during input list dump
OutputCacheErrors(cacheErrors.Keys);
// Stop timing
stopwatch.Stop();
Console.Error.WriteLine(summary);
Console.Error.WriteLine("Total time to dump input assertion lists: " + stopwatch.Elapsed.TotalSeconds.ToString("F", CultureInfo.InvariantCulture) + " seconds");
return(0);
}
/// <summary>
/// Checks for wide variations in the size of input assertion list file sizes corresponding to the same weak fingerprint
/// </summary>
/// <returns>Status code. 0 => success, non-zero => failure</returns>
private int CheckForInputListAnomalies()
{
Console.Error.WriteLine("\nStarting check for input assertion list anomalies");
// Start timing
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
InputAssertionListChecker inputAssertionListChecker = new InputAssertionListChecker(m_cache, m_inputAssertionListSizeDisparityMinimumFactor);
ConcurrentDictionary <CacheError, int> cacheErrors = new ConcurrentDictionary <CacheError, int>();
IEnumerable <InputAssertionListAnomaly> inputAssertionListAnomalies;
if (m_inputWeakFingerprints.Count > 0)
{
// Check with user provided weak fingerprints
Console.Error.WriteLine("\nChecking through the " + m_inputWeakFingerprints.Count + " provided weak fingerprints");
inputAssertionListAnomalies = inputAssertionListChecker.PerformAnomalyCheck(m_inputWeakFingerprints, cacheErrors, m_weakFingerprintsFound);
}
else
{
// Check through sessions
try
{
Console.Error.WriteLine("\nChecking through the sessions using the following regex: " + m_sessionRegex.ToString());
inputAssertionListAnomalies = inputAssertionListChecker.PerformAnomalyCheck(m_sessionRegex, cacheErrors, m_weakFingerprintsFound);
}
catch (NotImplementedException e)
{
// Not all cache implementations implement all of the interface methods
WriteError("Exception caught: " + e.Message);
WriteError("The implementation of the specified cache does not implement all required methods for this tool to be able to perform a check.");
return(1);
}
}
// Output input assertion list anomalies
int numberOfInputAssertionListAnomalies = 0;
foreach (InputAssertionListAnomaly inputAssertionListAnomaly in inputAssertionListAnomalies)
{
m_outputDestination.WriteLine(inputAssertionListAnomaly.ToString());
numberOfInputAssertionListAnomalies++;
}
if (m_inputWeakFingerprints.Count == 0)
{
Console.Error.WriteLine(string.Format(CultureInfo.InvariantCulture, "\nSessions checked/Total sessions: {0}/{1}",
inputAssertionListChecker.NumSessionsChecked, inputAssertionListChecker.NumSessions));
}
Console.Error.WriteLine(string.Format(CultureInfo.InvariantCulture, "\nWeak fingerprints with 2+ strong fingerprints/Total weak fingerprints: {0}/{1}",
inputAssertionListChecker.NumWeakFingerprintsWithTwoOrMoreSFPs, inputAssertionListChecker.NumWeakFingerprintsChecked));
Console.Error.WriteLine("\nInput Assertion List Anomalies found: " + numberOfInputAssertionListAnomalies);
// Output any cache errors found during check
OutputCacheErrors(cacheErrors.Keys);
// Stop timing
stopwatch.Stop();
Console.Error.WriteLine("\nTotal time to check for input assertion list anomalies: " + stopwatch.Elapsed.TotalSeconds.ToString("F", CultureInfo.CurrentCulture) + " seconds");
return(0);
}
