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ImHex/source/views/view_hashes.cpp

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#include "views/view_hashes.hpp"
#include "providers/provider.hpp"
#include "helpers/crypto.hpp"
#include <vector>
#include "helpers/utils.hpp"
namespace hex {
ViewHashes::ViewHashes() : View("Hashes") {
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View::subscribeEvent(Events::DataChanged, [this](const void*){
this->m_shouldInvalidate = true;
});
View::subscribeEvent(Events::RegionSelected, [this](const void *userData) {
Region region = *static_cast<const Region*>(userData);
if (this->m_shouldMatchSelection) {
this->m_hashRegion[0] = region.address;
this->m_hashRegion[1] = region.address + region.size - 1;
this->m_shouldInvalidate = true;
}
});
}
ViewHashes::~ViewHashes() {
View::unsubscribeEvent(Events::DataChanged);
View::unsubscribeEvent(Events::RegionSelected);
}
static void formatBigHexInt(auto dataArray, char *buffer, size_t bufferSize) {
for (int i = 0; i < dataArray.size(); i++)
snprintf(buffer + 8 * i, bufferSize - 8 * i, "%08X", hex::changeEndianess(dataArray[i], std::endian::big));
}
void ViewHashes::drawContent() {
if (ImGui::Begin("Hashing", &this->getWindowOpenState(), ImGuiWindowFlags_NoCollapse)) {
ImGui::BeginChild("##scrolling", ImVec2(0, 0), false, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoNav);
auto provider = *SharedData::get().currentProvider;
if (provider != nullptr && provider->isAvailable()) {
ImGui::TextUnformatted("Region");
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("Match selection", &this->m_shouldMatchSelection);
if (ImGui::IsItemEdited()) this->m_shouldInvalidate = true;
ImGui::NewLine();
ImGui::TextUnformatted("Settings");
ImGui::Separator();
if (ImGui::Combo("Hash Function", &this->m_currHashFunction, HashFunctionNames,sizeof(HashFunctionNames) / sizeof(const char *)))
this->m_shouldInvalidate = true;
size_t dataSize = provider->getSize();
if (this->m_hashRegion[1] >= dataSize)
this->m_hashRegion[1] = dataSize - 1;
if (this->m_hashRegion[1] >= this->m_hashRegion[0]) {
switch (this->m_currHashFunction) {
case 0: // CRC16
{
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static int polynomial = 0, init = 0;
ImGui::InputInt("Initial Value", &init, 0, 0, ImGuiInputTextFlags_CharsHexadecimal);
if (ImGui::IsItemEdited()) this->m_shouldInvalidate = true;
ImGui::InputInt("Polynomial", &polynomial, 0, 0, ImGuiInputTextFlags_CharsHexadecimal);
if (ImGui::IsItemEdited()) this->m_shouldInvalidate = true;
ImGui::NewLine();
static u16 result = 0;
if (this->m_shouldInvalidate)
result = 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("Result");
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 1: // CRC32
{
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static int polynomial = 0, init = 0;
ImGui::InputInt("Initial Value", &init, 0, 0, ImGuiInputTextFlags_CharsHexadecimal);
if (ImGui::IsItemEdited()) this->m_shouldInvalidate = true;
ImGui::InputInt("Polynomial", &polynomial, 0, 0, ImGuiInputTextFlags_CharsHexadecimal);
if (ImGui::IsItemEdited()) this->m_shouldInvalidate = true;
ImGui::NewLine();
static u32 result = 0;
if (this->m_shouldInvalidate)
result = 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("Result");
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 2: // MD4
{
static std::array<u32, 4> result;
if (this->m_shouldInvalidate)
result = md4(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("Result");
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 3: // MD5
{
static std::array<u32, 4> result = { 0 };
if (this->m_shouldInvalidate)
result = 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("Result");
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 4: // SHA-1
{
static std::array<u32, 5> result = { 0 };
if (this->m_shouldInvalidate)
result = 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("Result");
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 5: // SHA-224
{
static std::array<u32, 7> result = { 0 };
if (this->m_shouldInvalidate)
result = 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("Result");
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 6: // SHA-256
{
static std::array<u32, 8> result;
if (this->m_shouldInvalidate)
result = 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("Result");
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 7: // SHA-384
{
static std::array<u32, 12> result;
if (this->m_shouldInvalidate)
result = 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("Result");
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
case 8: // SHA-512
{
static std::array<u32, 16> result;
if (this->m_shouldInvalidate)
result = 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("Result");
ImGui::Separator();
ImGui::InputText("##nolabel", buffer, ImGuiInputTextFlags_ReadOnly);
}
break;
}
}
this->m_shouldInvalidate = false;
}
ImGui::EndChild();
}
ImGui::End();
}
void ViewHashes::drawMenu() {
}
}