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Pl_MD5.cc

#include <qpdf/Pl_MD5.hh>

#include <qpdf/QEXC.hh>

Pl_MD5::Pl_MD5(char const* identifier, Pipeline* next) :
    Pipeline(identifier, next),
    in_progress(false)
{
}

Pl_MD5::~Pl_MD5()
{
}

void
Pl_MD5::write(unsigned char* buf, int len)
{
    if (! this->in_progress)
    {
      this->md5.reset();
      this->in_progress = true;
    }
    this->md5.encodeDataIncrementally((char*) buf, len);
    this->getNext()->write(buf, len);
}

void
Pl_MD5::finish()
{
    this->getNext()->finish();
    this->in_progress = false;
}

std::string
Pl_MD5::getHexDigest()
{
    if (this->in_progress)
    {
      throw QEXC::General("digest requested for in-progress MD5 Pipeline");
    }
    return this->md5.unparse();
}

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