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feat(Core/Authserver): TOTP rewrite (#5620)
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43
src/common/Encoding/Base32.cpp
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43
src/common/Encoding/Base32.cpp
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/*
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* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-AGPL3
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* Copyright (C) 2021+ WarheadCore <https://github.com/WarheadCore>
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*/
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#include "Base32.h"
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#include "BaseEncoding.h"
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#include "Errors.h"
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struct B32Impl
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{
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static constexpr std::size_t BITS_PER_CHAR = 5;
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static constexpr char PADDING = '=';
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static constexpr char Encode(uint8 v)
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{
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ASSERT(v < 0x20);
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if (v < 26) return 'A'+v;
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else return '2' + (v-26);
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}
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static constexpr uint8 DECODE_ERROR = 0xff;
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static constexpr uint8 Decode(uint8 v)
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{
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if (v == '0') return Decode('O');
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if (v == '1') return Decode('l');
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if (v == '8') return Decode('B');
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if (('A' <= v) && (v <= 'Z')) return (v-'A');
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if (('a' <= v) && (v <= 'z')) return (v-'a');
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if (('2' <= v) && (v <= '7')) return (v-'2')+26;
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return DECODE_ERROR;
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}
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};
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/*static*/ std::string acore::Encoding::Base32::Encode(std::vector<uint8> const& data)
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{
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return acore::Impl::GenericBaseEncoding<B32Impl>::Encode(data);
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}
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/*static*/ Optional<std::vector<uint8>> acore::Encoding::Base32::Decode(std::string const& data)
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{
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return acore::Impl::GenericBaseEncoding<B32Impl>::Decode(data);
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}
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