91764efdbf
Batch #17343 by ragnarok-clanker: no function's compiled code changes; checked with 10 compiled unit(s), including every includer of Source/Utility/Cipher/Obfuscate.h.
83 lines
2.5 KiB
C++
83 lines
2.5 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_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_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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