551 lines
15 KiB
C++
551 lines
15 KiB
C++
#include <hex/helpers/utils.hpp>
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#include <cstdio>
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#include <hex/api/imhex_api.hpp>
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#include <hex/api/event.hpp>
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#include <hex/helpers/fmt.hpp>
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#include <hex/helpers/crypto.hpp>
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#include <hex/helpers/utils_linux.hpp>
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#include <imgui.h>
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#include <imgui_internal.h>
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#if defined(OS_WINDOWS)
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#include <windows.h>
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#elif defined(OS_LINUX)
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#include <unistd.h>
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#elif defined(OS_MACOS)
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#include <hex/helpers/utils_macos.hpp>
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#include <unistd.h>
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#elif defined(OS_WEB)
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#include "emscripten.h"
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#endif
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namespace hex {
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float operator""_scaled(long double value) {
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return value * ImHexApi::System::getGlobalScale();
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}
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float operator""_scaled(unsigned long long value) {
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return value * ImHexApi::System::getGlobalScale();
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}
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ImVec2 scaled(const ImVec2 &vector) {
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return vector * ImHexApi::System::getGlobalScale();
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}
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std::string to_string(u128 value) {
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char data[45] = { 0 };
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u8 index = sizeof(data) - 2;
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while (value != 0 && index != 0) {
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data[index] = '0' + value % 10;
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value /= 10;
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index--;
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}
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return { data + index + 1 };
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}
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std::string to_string(i128 value) {
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char data[45] = { 0 };
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u128 unsignedValue = value < 0 ? -value : value;
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u8 index = sizeof(data) - 2;
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while (unsignedValue != 0 && index != 0) {
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data[index] = '0' + unsignedValue % 10;
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unsignedValue /= 10;
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index--;
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}
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if (value < 0) {
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data[index] = '-';
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return { data + index };
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} else
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return { data + index + 1 };
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}
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std::vector<u8> parseHexString(std::string string) {
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if (string.empty())
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return { };
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// Remove common hex prefixes and commas
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string = hex::replaceStrings(string, "0x", "");
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string = hex::replaceStrings(string, "0X", "");
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string = hex::replaceStrings(string, ",", "");
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// Check for non-hex characters
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bool isValidHexString = std::find_if(string.begin(), string.end(), [](char c) {
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return !std::isxdigit(c) && !std::isspace(c);
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}) == string.end();
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if (!isValidHexString)
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return { };
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// Remove all whitespace
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std::erase_if(string, [](char c) { return std::isspace(c); });
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// Only parse whole bytes
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if (string.length() % 2 != 0)
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return { };
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// Convert hex string to bytes
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return crypt::decode16(string);
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}
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std::optional<u8> parseBinaryString(const std::string &string) {
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if (string.empty())
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return std::nullopt;
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u8 byte = 0x00;
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for (char c : string) {
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byte <<= 1;
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if (c == '1')
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byte |= 0b01;
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else if (c == '0')
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byte |= 0b00;
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else
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return std::nullopt;
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}
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return byte;
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}
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std::string toByteString(u64 bytes) {
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double value = bytes;
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u8 unitIndex = 0;
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while (value > 1024) {
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value /= 1024;
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unitIndex++;
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if (unitIndex == 6)
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break;
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}
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std::string result;
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if (unitIndex == 0)
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result = hex::format("{0:}", value);
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else
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result = hex::format("{0:.2f}", value);
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switch (unitIndex) {
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case 0:
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result += ((value == 1) ? " Byte" : " Bytes");
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break;
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case 1:
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result += " kiB";
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break;
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case 2:
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result += " MiB";
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break;
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case 3:
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result += " GiB";
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break;
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case 4:
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result += " TiB";
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break;
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case 5:
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result += " PiB";
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break;
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case 6:
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result += " EiB";
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break;
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default:
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result = "A lot!";
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}
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return result;
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}
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std::string makeStringPrintable(const std::string &string) {
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std::string result;
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for (char c : string) {
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if (std::isprint(c))
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result += c;
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else
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result += hex::format("\\x{0:02X}", u8(c));
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}
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return result;
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}
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std::string makePrintable(u8 c) {
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switch (c) {
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case 0:
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return "NUL";
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case 1:
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return "SOH";
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case 2:
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return "STX";
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case 3:
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return "ETX";
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case 4:
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return "EOT";
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case 5:
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return "ENQ";
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case 6:
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return "ACK";
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case 7:
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return "BEL";
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case 8:
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return "BS";
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case 9:
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return "TAB";
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case 10:
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return "LF";
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case 11:
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return "VT";
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case 12:
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return "FF";
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case 13:
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return "CR";
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case 14:
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return "SO";
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case 15:
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return "SI";
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case 16:
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return "DLE";
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case 17:
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return "DC1";
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case 18:
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return "DC2";
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case 19:
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return "DC3";
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case 20:
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return "DC4";
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case 21:
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return "NAK";
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case 22:
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return "SYN";
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case 23:
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return "ETB";
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case 24:
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return "CAN";
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case 25:
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return "EM";
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case 26:
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return "SUB";
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case 27:
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return "ESC";
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case 28:
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return "FS";
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case 29:
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return "GS";
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case 30:
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return "RS";
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case 31:
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return "US";
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case 32:
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return "Space";
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case 127:
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return "DEL";
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default:
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if (c >= 128)
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return " ";
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else
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return std::string() + static_cast<char>(c);
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}
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}
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std::vector<std::string> splitString(const std::string &string, const std::string &delimiter) {
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size_t start = 0, end = 0;
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std::vector<std::string> res;
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while ((end = string.find(delimiter, start)) != std::string::npos) {
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size_t size = end - start;
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if (start + size > string.length())
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break;
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std::string token = string.substr(start, end - start);
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start = end + delimiter.length();
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res.push_back(token);
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}
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res.emplace_back(string.substr(start));
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return res;
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}
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std::string combineStrings(const std::vector<std::string> &strings, const std::string &delimiter) {
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std::string result;
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for (const auto &string : strings) {
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result += string;
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result += delimiter;
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}
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return result.substr(0, result.length() - delimiter.length());
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}
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std::string replaceStrings(std::string string, const std::string &search, const std::string &replace) {
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if (search.empty())
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return string;
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std::size_t pos;
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while ((pos = string.find(search)) != std::string::npos)
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string.replace(pos, search.size(), replace);
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return string;
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}
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std::string toEngineeringString(double value) {
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constexpr static std::array Suffixes = { "a", "f", "p", "n", "u", "m", "", "k", "M", "G", "T", "P", "E" };
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int8_t suffixIndex = 6;
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while (suffixIndex != 0 && suffixIndex != 12 && (value >= 1000 || value < 1) && value != 0) {
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if (value >= 1000) {
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value /= 1000;
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suffixIndex++;
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} else if (value < 1) {
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value *= 1000;
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suffixIndex--;
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}
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}
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return std::to_string(value).substr(0, 5) + Suffixes[suffixIndex];
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}
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void startProgram(const std::string &command) {
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#if defined(OS_WINDOWS)
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hex::unused(system(hex::format("start {0}", command).c_str()));
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#elif defined(OS_MACOS)
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hex::unused(system(hex::format("open {0}", command).c_str()));
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#elif defined(OS_LINUX)
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executeCmd({"xdg-open", command});
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#elif defined(OS_WEB)
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hex::unused(command);
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#endif
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}
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int executeCommand(const std::string &command) {
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return ::system(command.c_str());
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}
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void openWebpage(std::string url) {
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if (!url.contains("://"))
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url = "https://" + url;
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#if defined(OS_WINDOWS)
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ShellExecute(nullptr, "open", url.c_str(), nullptr, nullptr, SW_SHOWNORMAL);
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#elif defined(OS_MACOS)
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openWebpageMacos(url.c_str());
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#elif defined(OS_LINUX)
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executeCmd({"xdg-open", url});
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#elif defined(OS_WEB)
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EM_ASM({
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window.open(UTF8ToString($0), '_blank');
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}, url.c_str());
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#else
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#warning "Unknown OS, can't open webpages"
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#endif
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}
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std::optional<u8> hexCharToValue(char c) {
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if (std::isdigit(c))
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return c - '0';
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else if (std::isxdigit(c))
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return std::toupper(c) - 'A' + 0x0A;
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else
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return { };
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}
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std::string encodeByteString(const std::vector<u8> &bytes) {
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std::string result;
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for (u8 byte : bytes) {
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if (std::isprint(byte) && byte != '\\')
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result += char(byte);
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else {
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switch (byte) {
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case '\\':
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result += "\\";
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break;
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case '\a':
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result += "\\a";
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break;
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case '\b':
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result += "\\b";
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break;
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case '\f':
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result += "\\f";
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break;
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case '\n':
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result += "\\n";
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break;
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case '\r':
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result += "\\r";
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break;
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case '\t':
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result += "\\t";
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break;
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case '\v':
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result += "\\v";
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break;
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default:
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result += hex::format("\\x{:02X}", byte);
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break;
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}
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}
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}
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return result;
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}
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std::vector<u8> decodeByteString(const std::string &string) {
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u32 offset = 0;
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std::vector<u8> result;
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while (offset < string.length()) {
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auto c = [&] { return string[offset]; };
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if (c() == '\\') {
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if ((offset + 2) > string.length()) return {};
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offset++;
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char escapeChar = c();
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offset++;
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switch (escapeChar) {
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case 'a':
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result.push_back('\a');
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break;
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case 'b':
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result.push_back('\b');
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break;
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case 'f':
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result.push_back('\f');
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break;
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case 'n':
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result.push_back('\n');
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break;
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case 'r':
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result.push_back('\r');
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break;
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case 't':
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result.push_back('\t');
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break;
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case 'v':
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result.push_back('\v');
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break;
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case '\\':
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result.push_back('\\');
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break;
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case 'x':
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{
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u8 byte = 0x00;
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if ((offset + 1) >= string.length()) return {};
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for (u8 i = 0; i < 2; i++) {
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byte <<= 4;
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if (auto hexValue = hexCharToValue(c()); hexValue.has_value())
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byte |= hexValue.value();
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else
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return {};
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offset++;
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}
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result.push_back(byte);
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}
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break;
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default:
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return {};
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}
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} else {
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result.push_back(c());
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offset++;
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}
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}
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return result;
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}
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float float16ToFloat32(u16 float16) {
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u32 sign = float16 >> 15;
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u32 exponent = (float16 >> 10) & 0x1F;
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u32 mantissa = float16 & 0x3FF;
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u32 result = 0x00;
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if (exponent == 0) {
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if (mantissa == 0) {
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// +- Zero
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result = sign << 31;
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} else {
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// Subnormal value
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exponent = 0x7F - 14;
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while ((mantissa & (1 << 10)) == 0) {
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exponent--;
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mantissa <<= 1;
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}
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mantissa &= 0x3FF;
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result = (sign << 31) | (exponent << 23) | (mantissa << 13);
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}
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} else if (exponent == 0x1F) {
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// +-Inf or +-NaN
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result = (sign << 31) | (0xFF << 23) | (mantissa << 13);
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} else {
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// Normal value
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result = (sign << 31) | ((exponent + (0x7F - 15)) << 23) | (mantissa << 13);
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}
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float floatResult = 0;
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std::memcpy(&floatResult, &result, sizeof(float));
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return floatResult;
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}
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bool isProcessElevated() {
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#if defined(OS_WINDOWS)
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bool elevated = false;
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HANDLE token = INVALID_HANDLE_VALUE;
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if (::OpenProcessToken(::GetCurrentProcess(), TOKEN_QUERY, &token)) {
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TOKEN_ELEVATION elevation;
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DWORD elevationSize = sizeof(TOKEN_ELEVATION);
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if (::GetTokenInformation(token, TokenElevation, &elevation, sizeof(elevation), &elevationSize))
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elevated = elevation.TokenIsElevated;
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}
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if (token != INVALID_HANDLE_VALUE)
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::CloseHandle(token);
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return elevated;
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#elif defined(OS_LINUX) || defined(OS_MACOS)
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return getuid() == 0 || getuid() != geteuid();
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#else
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return false;
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#endif
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}
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std::optional<std::string> getEnvironmentVariable(const std::string &env) {
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auto value = std::getenv(env.c_str());
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if (value == nullptr)
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return std::nullopt;
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else
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return value;
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}
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static std::optional<std::fs::path> fileToOpen;
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extern "C" void openFile(const char *path) {
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fileToOpen = path;
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}
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std::optional<std::fs::path> getInitialFilePath() {
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return fileToOpen;
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}
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} |