ImHex/source/views/view_hashes.cpp

234 lines
10 KiB
C++

#include "views/view_hashes.hpp"
#include <hex/providers/provider.hpp>
#include <hex/helpers/utils.hpp>
#include <hex/helpers/crypto.hpp>
#include <vector>
namespace hex {
ViewHashes::ViewHashes() : View("hex.view.hashes.name") {
EventManager::subscribe<EventDataChanged>(this, [this]() {
this->m_shouldInvalidate = true;
});
EventManager::subscribe<EventRegionSelected>(this, [this](Region region) {
if (this->m_shouldMatchSelection) {
this->m_hashRegion[0] = region.address;
this->m_hashRegion[1] = region.address + region.size;
this->m_shouldInvalidate = true;
}
});
}
ViewHashes::~ViewHashes() {
EventManager::unsubscribe<EventDataChanged>(this);
EventManager::unsubscribe<EventRegionSelected>(this);
}
template<size_t Size>
static void formatBigHexInt(std::array<u8, Size> dataArray, char *buffer, size_t bufferSize) {
for (int i = 0; i < dataArray.size(); i++)
snprintf(buffer + 2 * i, bufferSize - 2 * i, "%02X", dataArray[i]);
}
void ViewHashes::drawContent() {
if (ImGui::Begin(View::toWindowName("hex.view.hashes.name").c_str(), &this->getWindowOpenState(), ImGuiWindowFlags_NoCollapse)) {
ImGui::BeginChild("##scrolling", ImVec2(0, 0), false, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoNav);
auto provider = SharedData::currentProvider;
if (provider != nullptr && provider->isAvailable()) {
ImGui::TextUnformatted("hex.common.region"_lang);
ImGui::Separator();
ImGui::InputScalarN("##nolabel", ImGuiDataType_U64, this->m_hashRegion, 2, nullptr, nullptr, "%08X", ImGuiInputTextFlags_CharsHexadecimal);
if (ImGui::IsItemEdited()) this->m_shouldInvalidate = true;
ImGui::Checkbox("hex.common.match_selection"_lang, &this->m_shouldMatchSelection);
if (ImGui::IsItemEdited()) {
// Force execution of Region Selection Event
EventManager::post<RequestSelectionChange>(Region{ 0, 0 });
this->m_shouldInvalidate = true;
}
ImGui::NewLine();
ImGui::TextUnformatted("hex.view.hashes.settings"_lang);
ImGui::Separator();
if (ImGui::Combo("hex.view.hashes.function"_lang, &this->m_currHashFunction, HashFunctionNames,sizeof(HashFunctionNames) / sizeof(const char *)))
this->m_shouldInvalidate = true;
size_t dataSize = provider->getSize();
if (this->m_hashRegion[1] >= provider->getBaseAddress() + dataSize)
this->m_hashRegion[1] = provider->getBaseAddress() + dataSize;
if (this->m_hashRegion[1] >= this->m_hashRegion[0]) {
switch (this->m_currHashFunction) {
case 0: // CRC16
{
static int polynomial = 0x8005, init = 0x0000;
ImGui::InputInt("hex.view.hashes.iv"_lang, &init, 0, 0, ImGuiInputTextFlags_CharsHexadecimal);
if (ImGui::IsItemEdited()) this->m_shouldInvalidate = true;
ImGui::InputInt("hex.view.hashes.poly"_lang, &polynomial, 0, 0, ImGuiInputTextFlags_CharsHexadecimal);
if (ImGui::IsItemEdited()) this->m_shouldInvalidate = true;
ImGui::NewLine();
static u16 result = 0;
if (this->m_shouldInvalidate)
result = crypt::crc16(provider, this->m_hashRegion[0], this->m_hashRegion[1] - this->m_hashRegion[0] + 1, polynomial, init);
char buffer[sizeof(result) * 2 + 1];
snprintf(buffer, sizeof(buffer), "%04X", result);
ImGui::TextUnformatted("hex.view.hashes.result"_lang);
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 1: // CRC32
{
static int polynomial = 0x04C11DB7, init = 0xFFFFFFFF;
ImGui::InputInt("hex.view.hashes.iv"_lang, &init, 0, 0, ImGuiInputTextFlags_CharsHexadecimal);
if (ImGui::IsItemEdited()) this->m_shouldInvalidate = true;
ImGui::InputInt("hex.view.hashes.poly"_lang, &polynomial, 0, 0, ImGuiInputTextFlags_CharsHexadecimal);
if (ImGui::IsItemEdited()) this->m_shouldInvalidate = true;
ImGui::NewLine();
static u32 result = 0;
if (this->m_shouldInvalidate)
result = crypt::crc32(provider, this->m_hashRegion[0], this->m_hashRegion[1] - this->m_hashRegion[0] + 1, polynomial, init);
char buffer[sizeof(result) * 2 + 1];
snprintf(buffer, sizeof(buffer), "%08X", result);
ImGui::TextUnformatted("hex.view.hashes.result"_lang);
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 2: // MD5
{
static std::array<u8, 16> result = { 0 };
if (this->m_shouldInvalidate)
result = crypt::md5(provider, this->m_hashRegion[0], this->m_hashRegion[1] - this->m_hashRegion[0] + 1);
char buffer[sizeof(result) * 2 + 1];
formatBigHexInt(result, buffer, sizeof(buffer));
ImGui::NewLine();
ImGui::TextUnformatted("hex.view.hashes.result"_lang);
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 3: // SHA-1
{
static std::array<u8, 20> result = { 0 };
if (this->m_shouldInvalidate)
result = crypt::sha1(provider, this->m_hashRegion[0], this->m_hashRegion[1] - this->m_hashRegion[0] + 1);
char buffer[sizeof(result) * 2 + 1];
formatBigHexInt(result, buffer, sizeof(buffer));
ImGui::NewLine();
ImGui::TextUnformatted("hex.view.hashes.result"_lang);
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 4: // SHA-224
{
static std::array<u8, 28> result = { 0 };
if (this->m_shouldInvalidate)
result = crypt::sha224(provider, this->m_hashRegion[0], this->m_hashRegion[1] - this->m_hashRegion[0] + 1);
char buffer[sizeof(result) * 2 + 1];
formatBigHexInt(result, buffer, sizeof(buffer));
ImGui::NewLine();
ImGui::TextUnformatted("hex.view.hashes.result"_lang);
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 5: // SHA-256
{
static std::array<u8, 32> result;
if (this->m_shouldInvalidate)
result = crypt::sha256(provider, this->m_hashRegion[0], this->m_hashRegion[1] - this->m_hashRegion[0] + 1);
char buffer[sizeof(result) * 2 + 1];
formatBigHexInt(result, buffer, sizeof(buffer));
ImGui::NewLine();
ImGui::TextUnformatted("hex.view.hashes.result"_lang);
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 6: // SHA-384
{
static std::array<u8, 48> result;
if (this->m_shouldInvalidate)
result = crypt::sha384(provider, this->m_hashRegion[0], this->m_hashRegion[1] - this->m_hashRegion[0] + 1);
char buffer[sizeof(result) * 2 + 1];
formatBigHexInt(result, buffer, sizeof(buffer));
ImGui::NewLine();
ImGui::TextUnformatted("hex.view.hashes.result"_lang);
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 7: // SHA-512
{
static std::array<u8, 64> result;
if (this->m_shouldInvalidate)
result = crypt::sha512(provider, this->m_hashRegion[0], this->m_hashRegion[1] - this->m_hashRegion[0] + 1);
char buffer[sizeof(result) * 2 + 1];
formatBigHexInt(result, buffer, sizeof(buffer));
ImGui::NewLine();
ImGui::TextUnformatted("hex.view.hashes.result"_lang);
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
}
}
this->m_shouldInvalidate = false;
}
ImGui::EndChild();
}
ImGui::End();
}
void ViewHashes::drawMenu() {
}
}