Base64Converter.h

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// Copyright 2024 libsese
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
 
#pragma once
 
#include "sese/io/Stream.h"
#include "sese/util/NotInstantiable.h"
 
#ifdef _WIN32
#pragma warning(disable : 4624)
#endif
 
namespace sese {
 
class  Base64Converter final : public NotInstantiable {
public:
    using OutputStream = sese::io::OutputStream;
    using InputStream = sese::io::InputStream;
 
    Base64Converter() = delete;
 
    static void encode(const InputStream::Ptr &src, const OutputStream::Ptr &dest);
    static void encode(InputStream *src, OutputStream *dest);
 
    static void decode(const InputStream::Ptr &src, const OutputStream::Ptr &dest);
    static void decode(InputStream *src, OutputStream *dest);
 
public:
    using CodePage = const unsigned char *;
 
    static bool encodeBase62(InputStream *input, OutputStream *output) noexcept;
    static bool decodeBase62(InputStream *input, OutputStream *output) noexcept;
 
public:
    static bool encodeInteger(size_t num, OutputStream *output) noexcept;
    static int64_t decodeBuffer(const unsigned char *buffer, size_t size) noexcept;
};
} // namespace sese