Analysis::Result::Ptr Detect(const Parameters::Accessor& params, DataLocation::Ptr input, const Module::DetectCallback& callback) const override
{
const Binary::Container::Ptr rawData = input->GetData();
const std::size_t size = rawData->Size();
Statistic::Self().Enqueue(size);
if (size < MIN_MINIMAL_RAW_SIZE)
{
Dbg("Size is too small (%1%)", size);
return Analysis::CreateUnmatchedResult(size);
}
const RawPluginParameters scanParams(params);
const std::size_t minRawSize = scanParams.GetMinimalSize();
const String currentPath = input->GetPath()->AsString();
Dbg("Detecting modules in raw data at '%1%'", currentPath);
const Log::ProgressCallback::Ptr progress = MakePtr<RawProgressCallback>(callback, static_cast<uint_t>(size), currentPath);
const Module::DetectCallback& noProgressCallback = Module::CustomProgressDetectCallbackAdapter(callback);
const ArchivePlugin::Iterator::Ptr availableArchives = ArchivePluginsEnumerator::Create()->Enumerate();
const ArchivePlugin::Iterator::Ptr usedArchives = scanParams.GetDoubleAnalysis()
? MakePtr<DoubleAnalysisArchivePlugins>(availableArchives)
: availableArchives;
RawDetectionPlugins usedPlugins(params, PlayerPluginsEnumerator::Create()->Enumerate(), usedArchives, *this);
ScanDataLocation::Ptr subLocation = MakePtr<ScanDataLocation>(input, Description->Id(), 0);
while (subLocation->HasToScan(minRawSize))
{
const std::size_t offset = subLocation->GetOffset();
progress->OnProgress(static_cast<uint_t>(offset));
usedPlugins.SetOffset(offset);
const Module::DetectCallback& curCallback = offset ? noProgressCallback : callback;
const std::size_t bytesToSkip = usedPlugins.Detect(subLocation, curCallback);
if (!subLocation.unique())
{
Dbg("Sublocation is captured. Duplicate.");
subLocation = MakePtr<ScanDataLocation>(input, Description->Id(), offset);
}
subLocation->Move(std::max(bytesToSkip, SCAN_STEP));
}
return Analysis::CreateMatchedResult(size);
}
Analysis::Result::Ptr DetectIn(LookaheadPluginsStorage<T>& container, DataLocation::Ptr input, const Module::DetectCallback& callback) const
{
const bool firstScan = 0 == Offset;
const std::size_t maxSize = input->GetData()->Size();
for (typename T::Iterator::Ptr iter = container.Enumerate(); iter->IsValid(); iter->Next())
{
Time::Timer timer;
const typename T::Ptr plugin = iter->Get();
const Analysis::Result::Ptr result = plugin->Detect(Params, input, callback);
const String id = plugin->GetDescription()->Id();
if (const std::size_t usedSize = result->GetMatchedDataSize())
{
Statistic::Self().AddAimed(*plugin, timer);
Dbg("Detected %1% in %2% bytes at %3%.", id, usedSize, input->GetPath()->AsString());
return result;
}
else
{
if (!firstScan)
{
Statistic::Self().AddMissed(*plugin, timer);
timer = Time::Timer();
}
const std::size_t lookahead = result->GetLookaheadOffset();
container.SetPluginLookahead(*plugin, id, lookahead);
if (lookahead == maxSize)
{
Statistic::Self().AddAimed(*plugin, timer);
}
else
{
Statistic::Self().AddScanned(*plugin, timer);
}
}
}
const std::size_t minLookahead = container.GetMinimalPluginLookahead();
return Analysis::CreateUnmatchedResult(minLookahead);
}
DataLocation::Ptr OpenLocation(Parameters::Accessor::Ptr coreParams, Binary::Container::Ptr data, const String& subpath)
{
const ArchivePluginsEnumerator::Ptr usedPlugins = ArchivePluginsEnumerator::Create();
DataLocation::Ptr resolvedLocation = boost::make_shared<UnresolvedLocation>(data);
const Analysis::Path::Ptr sourcePath = Analysis::ParsePath(subpath, Text::MODULE_SUBPATH_DELIMITER[0]);
for (Analysis::Path::Ptr unresolved = sourcePath; !unresolved->Empty(); unresolved = sourcePath->Extract(resolvedLocation->GetPath()->AsString()))
{
const String toResolve = unresolved->AsString();
Dbg("Resolving '%1%'", toResolve);
if (!(resolvedLocation = TryToOpenLocation(*usedPlugins, *coreParams, resolvedLocation, *unresolved)))
{
throw MakeFormattedError(THIS_LINE, translate("Failed to resolve subpath '%1%'."), subpath);
}
}
Dbg("Resolved '%1%'", subpath);
return resolvedLocation;
}
