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