7e55e7f3cd
Batch #18611 by ragnarok-clanker: no function's compiled code changes; checked with 56 compiled unit(s), including every includer of Source/Utility/Cipher/Obfuscate.h.
135 lines
4.8 KiB
C++
135 lines
4.8 KiB
C++
#ifndef RAGNAROK_SOURCE_UTILITY_CIPHER_OBFUSCATE_H
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#define RAGNAROK_SOURCE_UTILITY_CIPHER_OBFUSCATE_H
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#include <array>
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#include <cstddef>
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#include <cstdint>
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namespace utility {
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template <std::size_t Length, std::uint64_t Key>
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class Obfuscator {
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public:
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// INLINED
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consteval explicit Obfuscator(const char (&text)[Length]) : m_data{} {
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for (std::size_t index = 0; index < Length; ++index) {
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this->m_data[index] = static_cast<char>(text[index] ^ static_cast<char>(Key >> ((index % 8) * 8)));
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}
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}
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// INLINED
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template <typename Element>
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consteval std::array<Element, Length> Array() const {
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std::array<Element, Length> out{};
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for (std::size_t index = 0; index < Length; ++index) {
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out[index] = static_cast<Element>(this->m_data[index]);
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}
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return out;
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}
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char m_data[Length];
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};
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}
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#define OBFUSCATE_NAME_(text, key, variable) \
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constexpr ::utility::Obfuscator<sizeof(text), key> obfuscator(text); \
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thread_local EncryptedName<sizeof(text), key> variable(obfuscator.m_data)
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#define OBFUSCATE_NAME_SOURCE_(text, key, variable) \
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constexpr ::utility::Obfuscator<sizeof(text), key> obfuscator(text); \
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constexpr EncryptedSource<sizeof(text)> source(obfuscator.m_data); \
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thread_local EncryptedName<sizeof(text), key> variable(source)
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#define OBFUSCATE_NAME_ARRAY_(text, key, element, variable) \
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constexpr std::array<element, sizeof(text)> source = ::utility::Obfuscator<sizeof(text), key>(text).Array<element>(); \
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thread_local EncryptedName<sizeof(text), key> variable(source)
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#define OBFUSCATE_DECLARE(text, key, variable) \
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constexpr ::utility::Obfuscator<sizeof(text), key> variable##Obfuscator(text); \
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thread_local EncryptedName<sizeof(text), key> variable(variable##Obfuscator.m_data)
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#define OBFUSCATE_DECLARE_BYTES(text, key, variable) \
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constexpr std::array<std::uint8_t, sizeof(text)> variable##Source = ::utility::Obfuscator<sizeof(text), key>(text).Array<std::uint8_t>(); \
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thread_local EncryptedName<sizeof(text), key> variable(variable##Source._Elems)
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#define OBFUSCATE_DECLARE_ARRAY(text, key, variable) \
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constexpr std::array<char, sizeof(text)> variable##Source = ::utility::Obfuscator<sizeof(text), key>(text).Array<char>(); \
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thread_local EncryptedName<sizeof(text), key> variable(variable##Source)
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#define OBFUSCATE_DECLARE_BYTES_ARRAY(text, key, variable) \
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constexpr std::array<std::uint8_t, sizeof(text)> variable##Source = ::utility::Obfuscator<sizeof(text), key>(text).Array<std::uint8_t>(); \
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thread_local EncryptedName<sizeof(text), key> variable(variable##Source)
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#define OBFUSCATE_SOURCE(text, key) CRYPT_NAME(text, key)
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#define OBFUSCATE_SOURCE_CHARS(length, text, key) CRYPT_CHARS(length, text, key)
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#define OBFUSCATE_SOURCE_BYTES(length, text, key) CRYPT_BYTES(length, text, key)
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#define OBFUSCATE_DECRYPT(key, source) \
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[](const auto& bytes) { \
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thread_local EncryptedName<sizeof(bytes), key> name(bytes); \
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return name.Text(); \
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}(source)
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#define OBFUSCATE_DECRYPT_NAME(key, source) \
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[](const auto& bytes) -> EncryptedName<sizeof(bytes), key>& { \
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thread_local EncryptedName<sizeof(bytes), key> name(bytes); \
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return name; \
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}(source)
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#define OBFUSCATE_DECRYPT_CHARS(key, length, ...) \
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[](const char (&bytes)[length]) { \
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thread_local EncryptedName<length, key> name(bytes); \
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return name.Text(); \
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}(__VA_ARGS__)
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#define OBFUSCATE_DECRYPT_BYTES(key, length, ...) \
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[](const std::uint8_t (&bytes)[length]) { \
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thread_local EncryptedName<length, key> name(bytes); \
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return name.Text(); \
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}(__VA_ARGS__)
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#define OBFUSCATE_ARRAY(text, key, element) \
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[]() -> EncryptedName<sizeof(text), key>& { \
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OBFUSCATE_NAME_ARRAY_(text, key, element, name); \
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return name; \
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}()
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#define OBFUSCATE_ARRAY_TEXT(text, key, element) \
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[]() { \
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OBFUSCATE_NAME_ARRAY_(text, key, element, name); \
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return name.Text(); \
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}()
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#define OBFUSCATE_BYTES_TEXT(text, key) OBFUSCATE_ARRAY_TEXT(text, key, std::uint8_t)
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#define OBFUSCATE_ARRAY_BODY(text, key, element) \
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OBFUSCATE_NAME_ARRAY_(text, key, element, name); \
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return name
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#define OBFUSCATE_STRING_BODY(text, key) \
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OBFUSCATE_NAME_(text, key, name); \
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return name
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#define OBFUSCATE_STRING(text, key) \
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[]() -> EncryptedName<sizeof(text), key>& { \
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OBFUSCATE_NAME_(text, key, name); \
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return name; \
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}()
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#define OBFUSCATE_TEXT_NAMED(text, key, variable) \
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[]() { \
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OBFUSCATE_NAME_(text, key, variable); \
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return variable.Text(); \
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}()
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#define OBFUSCATE_SOURCE_TEXT_NAMED(text, key, variable) \
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[]() { \
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OBFUSCATE_NAME_SOURCE_(text, key, variable); \
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return variable.Text(); \
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}()
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#define OBFUSCATE_TEXT(text, key) OBFUSCATE_TEXT_NAMED(text, key, name)
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#define OBFUSCATE_SOURCE_TEXT(text, key) OBFUSCATE_SOURCE_TEXT_NAMED(text, key, name)
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#endif
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