TXFMBase64.hpp

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/*
 * Copyright 2002-2005 The Apache Software Foundation.
 *
 * 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.
 */

/*
 * XSEC
 *
 * TXFMBase64 := Class that performs a Base64 transforms
 *
 * $Id: TXFMBase64.hpp,v 1.11 2005/02/03 13:50:12 milan Exp $
 *
 */

// XSEC Includes

#include <xsec/transformers/TXFMBase.hpp>
#include <xsec/enc/XSECCryptoBase64.hpp>
 
class DSIG_EXPORT TXFMBase64 : public TXFMBase {

public:

    // Constructors and destructors

    TXFMBase64(XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument *doc, bool decode = true);
    ~TXFMBase64();

    // Methods to get tranform output type and input requirement

    virtual TXFMBase::ioType getInputType(void);
    virtual TXFMBase::ioType getOutputType(void);
    virtual nodeType getNodeType(void);

    // Methods to set input data

    virtual void setInput(TXFMBase * newInput);

    // Methods to get output data

    virtual unsigned int readBytes(XMLByte * const toFill, const unsigned int maxToFill);
    virtual XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument *getDocument();
    virtual XERCES_CPP_NAMESPACE_QUALIFIER DOMNode *getFragmentNode();
    virtual const XMLCh * getFragmentId();
    
private:
    TXFMBase64();

    bool                m_complete;                 // Is the work done
    unsigned char       m_outputBuffer[2050];       // Always keep 2K of data
    unsigned char       m_inputBuffer[1026];        // Always read 1026 bytes (encoding grows)
    unsigned int        m_remaining;                // How much data is left in the buffer?
    XSECCryptoBase64 *  mp_b64;
    bool                m_doDecode;                 // Are we encoding or decoding?
};

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