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base64.h

#ifndef CRYPTOPP_BASE64_H
#define CRYPTOPP_BASE64_H

#include "cryptlib.h"
#include "filters.h"

NAMESPACE_BEGIN(CryptoPP)

class Base64Encoder : public Filter
{
public:
        Base64Encoder(BufferedTransformation *outQueue = NULL, bool insertLineBreak = true);

        void Put(byte inByte)
        {
                inBuf[inBufSize++]=inByte;
                if (inBufSize==3)
                        EncodeQuantum();
        }

        void Put(const byte *inString, unsigned int length);
        void MessageEnd(int propagation=-1);

private:
        void LineBreak();
        void EncodeQuantum();

        const bool insertLineBreak;
        int inBufSize;
        int lineLength;
        byte inBuf[3];
};

class Base64Decoder : public Filter
{
public:
        Base64Decoder(BufferedTransformation *outQueue = NULL);

        void Put(byte inByte)
        {
                int i=ConvToNumber(inByte);
                if (i >= 0)
                        inBuf[inBufSize++]=(byte) i;
                if (inBufSize==4)
                        DecodeQuantum();
        }

        void Put(const byte *inString, unsigned int length);
        void MessageEnd(int propagation=-1);

private:
        static int ConvToNumber(byte inByte);
        void DecodeQuantum();

        int inBufSize;
        byte inBuf[4];
};

NAMESPACE_END

#endif

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