343 lines
17 KiB
C++
343 lines
17 KiB
C++
#include "content/views/view_information.hpp"
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#include <hex/api/content_registry.hpp>
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#include <hex/providers/provider.hpp>
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#include <hex/providers/buffered_reader.hpp>
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#include <hex/helpers/fs.hpp>
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#include <hex/helpers/magic.hpp>
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#include <cstring>
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#include <cmath>
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#include <filesystem>
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#include <span>
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#include <implot.h>
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namespace hex::plugin::builtin {
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using namespace hex::literals;
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ViewInformation::ViewInformation() : View("hex.builtin.view.information.name") {
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EventManager::subscribe<EventDataChanged>(this, [this]() {
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this->m_dataValid = false;
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this->m_plainTextCharacterPercentage = -1.0;
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this->m_averageEntropy = -1.0;
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this->m_highestBlockEntropy = -1.0;
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this->m_blockSize = 0;
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this->m_dataMimeType.clear();
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this->m_dataDescription.clear();
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this->m_analyzedRegion = { 0, 0 };
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});
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EventManager::subscribe<EventRegionSelected>(this, [this](Region region) {
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// Set the position of the diagram relative to the place where
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// the user clicked inside the hex editor view
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if (this->m_blockSize != 0) {
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this->m_byteTypesDistribution.setHandlePosition(region.getStartAddress());
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this->m_chunkBasedEntropy.setHandlePosition(region.getStartAddress());
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}
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});
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EventManager::subscribe<EventProviderDeleted>(this, [this](const auto*) {
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this->m_dataValid = false;
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});
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ContentRegistry::FileHandler::add({ ".mgc" }, [](const auto &path) {
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for (const auto &destPath : fs::getDefaultPaths(fs::ImHexPath::Magic)) {
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if (wolv::io::fs::copyFile(path, destPath / path.filename(), std::fs::copy_options::overwrite_existing)) {
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View::showInfoPopup("hex.builtin.view.information.magic_db_added"_lang);
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return true;
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}
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}
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return false;
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});
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}
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ViewInformation::~ViewInformation() {
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EventManager::unsubscribe<EventDataChanged>(this);
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EventManager::unsubscribe<EventRegionSelected>(this);
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EventManager::unsubscribe<EventProviderDeleted>(this);
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}
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void ViewInformation::analyze() {
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this->m_analyzerTask = TaskManager::createTask("hex.builtin.view.information.analyzing", 0, [this](auto &task) {
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auto provider = ImHexApi::Provider::get();
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if ((this->m_inputChunkSize <= 0)
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|| (this->m_inputStartAddress >= this->m_inputEndAddress)
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|| ((size_t) this->m_inputEndAddress > provider->getActualSize())) {
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// Invalid parameters, set default one
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this->m_inputChunkSize = 256;
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this->m_inputStartAddress = 0;
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this->m_inputEndAddress = provider->getActualSize();
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}
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task.setMaxValue(this->m_inputEndAddress - this->m_inputStartAddress);
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// Modify the analyzed region
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this->m_analyzedRegion = {
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provider->getBaseAddress() + this->m_inputStartAddress,
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size_t(this->m_inputEndAddress - this->m_inputStartAddress)
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};
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{
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magic::compile();
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this->m_dataDescription = magic::getDescription(provider);
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this->m_dataMimeType = magic::getMIMEType(provider);
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}
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{
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this->m_blockSize = std::max<u32>(std::ceil(provider->getActualSize() / 2048.0F), 256);
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this->m_averageEntropy = -1.0;
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this->m_highestBlockEntropy = -1.0;
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this->m_plainTextCharacterPercentage = -1.0;
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// Setup / start each analysis
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this->m_byteDistribution.reset();
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this->m_digram.reset(this->m_inputEndAddress - this->m_inputStartAddress);
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this->m_layeredDistribution.reset(this->m_inputEndAddress - this->m_inputStartAddress);
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this->m_byteTypesDistribution.reset(this->m_inputStartAddress, this->m_inputEndAddress,
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provider->getBaseAddress(), provider->getActualSize());
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this->m_chunkBasedEntropy.reset(this->m_inputChunkSize, this->m_inputStartAddress, this->m_inputEndAddress,
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provider->getBaseAddress(), provider->getActualSize());
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// Create a handle to the file
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auto reader = prv::ProviderReader(provider);
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reader.seek(provider->getBaseAddress() + this->m_inputStartAddress);
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reader.setEndAddress(provider->getBaseAddress() + this->m_inputEndAddress);
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u64 count = 0;
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// Loop over each byte of the [part of the] file and update each analysis
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// one byte at the time in order to process the file only once
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for (u8 byte : reader) {
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this->m_byteDistribution.update(byte);
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this->m_byteTypesDistribution.update(byte);
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this->m_chunkBasedEntropy.update(byte);
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this->m_layeredDistribution.update(byte);
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this->m_digram.update(byte);
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++count;
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task.update(count);
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}
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this->m_averageEntropy = this->m_chunkBasedEntropy.calculateEntropy(this->m_byteDistribution.get(), this->m_inputEndAddress - this->m_inputStartAddress);
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this->m_highestBlockEntropy = this->m_chunkBasedEntropy.getHighestEntropyBlockValue();
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this->m_highestBlockEntropyAddress = this->m_chunkBasedEntropy.getHighestEntropyBlockAddress();
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this->m_lowestBlockEntropy = this->m_chunkBasedEntropy.getLowestEntropyBlockValue();
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this->m_lowestBlockEntropyAddress = this->m_chunkBasedEntropy.getLowestEntropyBlockAddress();
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this->m_plainTextCharacterPercentage = this->m_byteTypesDistribution.getPlainTextCharacterPercentage();
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}
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this->m_dataValid = true;
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});
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}
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void ViewInformation::drawContent() {
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if (ImGui::Begin(View::toWindowName("hex.builtin.view.information.name").c_str(), &this->getWindowOpenState(), ImGuiWindowFlags_NoCollapse)) {
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if (ImGui::BeginChild("##scrolling", ImVec2(0, 0), false, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoNav)) {
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auto provider = ImHexApi::Provider::get();
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if (ImHexApi::Provider::isValid() && provider->isReadable()) {
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ImGui::BeginDisabled(this->m_analyzerTask.isRunning());
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{
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ImGui::Header("hex.builtin.common.settings"_lang, true);
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const u64 min = 0;
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const u64 max = provider->getActualSize();
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ImGui::SliderScalar("hex.builtin.common.begin"_lang, ImGuiDataType_U64, &this->m_inputStartAddress, &min, &max, "0x%02llX", ImGuiSliderFlags_AlwaysClamp);
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ImGui::SliderScalar("hex.builtin.common.end"_lang, ImGuiDataType_U64, &this->m_inputEndAddress, &min, &max, "0x%02llX", ImGuiSliderFlags_AlwaysClamp);
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ImGui::NewLine();
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ImGui::InputInt("hex.builtin.view.information.block_size"_lang, &this->m_inputChunkSize, ImGuiInputTextFlags_CharsDecimal);
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if (ImGui::Button("hex.builtin.view.information.analyze"_lang, ImVec2(ImGui::GetContentRegionAvail().x, 0)))
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this->analyze();
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}
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ImGui::EndDisabled();
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if (this->m_analyzerTask.isRunning()) {
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ImGui::TextSpinner("hex.builtin.view.information.analyzing"_lang);
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} else {
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ImGui::NewLine();
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}
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if (!this->m_analyzerTask.isRunning() && this->m_dataValid) {
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// Provider information
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ImGui::Header("hex.builtin.view.information.provider_information"_lang, true);
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if (ImGui::BeginTable("information", 2, ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_RowBg | ImGuiTableFlags_NoKeepColumnsVisible)) {
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ImGui::TableSetupColumn("type");
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ImGui::TableSetupColumn("value", ImGuiTableColumnFlags_WidthStretch);
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ImGui::TableNextRow();
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for (auto &[name, value] : provider->getDataDescription()) {
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ImGui::TableNextColumn();
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ImGui::TextFormatted("{}", name);
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ImGui::TableNextColumn();
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ImGui::TextFormattedWrapped("{}", value);
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}
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ImGui::TableNextColumn();
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ImGui::TextFormatted("{}", "hex.builtin.view.information.region"_lang);
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ImGui::TableNextColumn();
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ImGui::TextFormatted("0x{:X} - 0x{:X}", this->m_analyzedRegion.getStartAddress(), this->m_analyzedRegion.getEndAddress());
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ImGui::EndTable();
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}
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// Magic information
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if (!(this->m_dataDescription.empty() && this->m_dataMimeType.empty())) {
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ImGui::Header("hex.builtin.view.information.magic"_lang);
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if (ImGui::BeginTable("magic", 2, ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_RowBg)) {
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ImGui::TableSetupColumn("type");
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ImGui::TableSetupColumn("value", ImGuiTableColumnFlags_WidthStretch);
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ImGui::TableNextRow();
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if (!this->m_dataDescription.empty()) {
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ImGui::TableNextColumn();
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ImGui::TextUnformatted("hex.builtin.view.information.description"_lang);
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ImGui::TableNextColumn();
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ImGui::TextFormattedWrapped("{}", this->m_dataDescription.c_str());
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}
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if (!this->m_dataMimeType.empty()) {
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ImGui::TableNextColumn();
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ImGui::TextUnformatted("hex.builtin.view.information.mime"_lang);
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ImGui::TableNextColumn();
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ImGui::TextFormattedWrapped("{}", this->m_dataMimeType.c_str());
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}
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ImGui::EndTable();
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}
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}
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// Information analysis
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{
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ImGui::Header("hex.builtin.view.information.info_analysis"_lang);
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ImGui::PushStyleColor(ImGuiCol_FrameBg, ImGui::GetColorU32(ImGuiCol_WindowBg));
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ImPlot::PushStyleColor(ImPlotCol_FrameBg, ImGui::GetColorU32(ImGuiCol_WindowBg));
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// Display byte distribution analysis
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ImGui::TextUnformatted("hex.builtin.view.information.distribution"_lang);
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this->m_byteDistribution.draw(
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ImVec2(-1, 0),
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ImPlotFlags_NoChild | ImPlotFlags_NoLegend | ImPlotFlags_NoMenus | ImPlotFlags_NoBoxSelect
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);
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// Display byte types distribution analysis
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ImGui::TextUnformatted("hex.builtin.view.information.byte_types"_lang);
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this->m_byteTypesDistribution.draw(
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ImVec2(-1, 0),
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ImPlotFlags_NoChild | ImPlotFlags_NoMenus | ImPlotFlags_NoBoxSelect | ImPlotFlags_AntiAliased,
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true
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);
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// Display chunk based entropy analysis
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ImGui::TextUnformatted("hex.builtin.view.information.entropy"_lang);
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this->m_chunkBasedEntropy.draw(
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ImVec2(-1, 0),
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ImPlotFlags_NoChild | ImPlotFlags_CanvasOnly | ImPlotFlags_AntiAliased,
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true
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);
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ImPlot::PopStyleColor();
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ImGui::PopStyleColor();
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ImGui::NewLine();
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}
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// Entropy information
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if (ImGui::BeginTable("entropy_info", 2, ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_RowBg)) {
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ImGui::TableSetupColumn("type");
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ImGui::TableSetupColumn("value", ImGuiTableColumnFlags_WidthStretch);
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ImGui::TableNextRow();
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ImGui::TableNextColumn();
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ImGui::TextFormatted("{}", "hex.builtin.view.information.block_size"_lang);
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ImGui::TableNextColumn();
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ImGui::TextFormatted("hex.builtin.view.information.block_size.desc"_lang, this->m_chunkBasedEntropy.getSize(), this->m_chunkBasedEntropy.getChunkSize());
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ImGui::TableNextColumn();
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ImGui::TextFormatted("{}", "hex.builtin.view.information.file_entropy"_lang);
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ImGui::TableNextColumn();
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if (this->m_averageEntropy < 0) ImGui::TextUnformatted("???");
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else ImGui::TextFormatted("{:.5f}", this->m_averageEntropy);
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ImGui::TableNextColumn();
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ImGui::TextFormatted("{}", "hex.builtin.view.information.highest_entropy"_lang);
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ImGui::TableNextColumn();
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ImGui::TextFormatted("{:.5f} @ 0x{:02X}", this->m_highestBlockEntropy, this->m_highestBlockEntropyAddress);
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ImGui::TableNextColumn();
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ImGui::TextFormatted("{}", "hex.builtin.view.information.lowest_entropy"_lang);
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ImGui::TableNextColumn();
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ImGui::TextFormatted("{:.5f} @ 0x{:02X}", this->m_lowestBlockEntropy, this->m_lowestBlockEntropyAddress);
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ImGui::TableNextColumn();
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ImGui::TextFormatted("{}", "hex.builtin.view.information.plain_text_percentage"_lang);
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ImGui::TableNextColumn();
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if (this->m_plainTextCharacterPercentage < 0) ImGui::TextUnformatted("???");
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else ImGui::TextFormatted("{:.2f}%", this->m_plainTextCharacterPercentage);
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ImGui::EndTable();
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}
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ImGui::NewLine();
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// General information
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if (ImGui::BeginTable("info", 1, ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_RowBg)) {
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ImGui::TableSetupColumn("value", ImGuiTableColumnFlags_WidthStretch);
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ImGui::TableNextRow();
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if (this->m_averageEntropy > 0.83 && this->m_highestBlockEntropy > 0.9) {
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ImGui::TableNextColumn();
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ImGui::TextFormattedColored(ImVec4(0.92F, 0.25F, 0.2F, 1.0F), "{}", "hex.builtin.view.information.encrypted"_lang);
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}
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if (this->m_plainTextCharacterPercentage > 95) {
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ImGui::TableNextColumn();
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ImGui::TextFormattedColored(ImVec4(0.92F, 0.25F, 0.2F, 1.0F), "{}", "hex.builtin.view.information.plain_text"_lang);
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}
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ImGui::EndTable();
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}
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ImGui::BeginGroup();
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{
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ImGui::TextUnformatted("hex.builtin.view.information.digram"_lang);
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this->m_digram.draw(scaled(ImVec2(300, 300)));
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}
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ImGui::EndGroup();
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ImGui::SameLine();
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ImGui::BeginGroup();
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{
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ImGui::TextUnformatted("hex.builtin.view.information.layered_distribution"_lang);
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this->m_layeredDistribution.draw(scaled(ImVec2(300, 300)));
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}
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ImGui::EndGroup();
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}
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}
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}
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ImGui::EndChild();
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}
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ImGui::End();
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}
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}
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