mirror of https://github.com/oxen-io/oxen-core.git
39 lines
1.6 KiB
C++
39 lines
1.6 KiB
C++
#pragma once
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#include <fmt/format.h>
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#include "common/format.h"
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#include "crypto.h"
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#include "hash.h"
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namespace crypto {
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template <typename T, typename SFINAE = void>
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constexpr bool is_hex_printable = false;
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template <typename T>
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constexpr bool is_hex_printable<T, std::enable_if_t<std::is_base_of_v<ec_point, T> && sizeof(T) == sizeof(ec_point)>> = true;
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template <> inline constexpr bool is_hex_printable<signature> = true;
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template <> inline constexpr bool is_hex_printable<ed25519_public_key> = true;
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template <> inline constexpr bool is_hex_printable<x25519_public_key> = true;
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template <> inline constexpr bool is_hex_printable<hash> = true;
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template <> inline constexpr bool is_hex_printable<hash8> = true;
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template <typename T> inline constexpr bool is_hex_printable<T&> = is_hex_printable<T>;
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template <typename T> inline constexpr bool is_hex_printable<T&&> = is_hex_printable<T>;
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template <typename T> inline constexpr bool is_hex_printable<const T> = is_hex_printable<T>;
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// Helper for when you are really sure you want to print a secret key (which is not printable by
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// default so that you have to be explicit and can't accidentally expose one in a log
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// statement).
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inline std::string expose_secret(const ec_scalar& secret) {
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return "<{}>"_format(tools::type_to_hex(secret));
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}
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}
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template <typename T, typename Char>
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struct fmt::formatter<T, Char, std::enable_if_t<crypto::is_hex_printable<T>>> : fmt::formatter<std::string> {
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auto format(const T& v, format_context& ctx) {
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return formatter<std::string>::format("<{}>"_format(tools::type_to_hex(v)), ctx);
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}
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};
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