digestcontext.cxx

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 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#include <sal/config.h>
 
#include <com/sun/star/lang/DisposedException.hpp>
 
#include <pk11pub.h>
#include "digestcontext.hxx"
 
using namespace ::com::sun::star;
 
ODigestContext::~ODigestContext()
{
    if ( m_pContext )
    {
        PK11_DestroyContext( m_pContext, PR_TRUE );
        m_pContext = nullptr;
    }
}
 
void SAL_CALL ODigestContext::updateDigest( const uno::Sequence< ::sal_Int8 >& aData )
{
    std::scoped_lock aGuard( m_aMutex );
 
    if ( m_bBroken )
        throw uno::RuntimeException();
 
    if ( m_bDisposed )
        throw lang::DisposedException();
 
    if (m_b1KData && m_nDigested >= 1024)
        return;
 
    uno::Sequence< sal_Int8 > aToDigest = aData;
    if ( m_b1KData && m_nDigested + aData.getLength() > 1024 )
        aToDigest.realloc( 1024 - m_nDigested );
 
    if ( PK11_DigestOp( m_pContext, reinterpret_cast< const unsigned char* >( aToDigest.getConstArray() ), aToDigest.getLength() ) != SECSuccess )
    {
        PK11_DestroyContext( m_pContext, PR_TRUE );
        m_pContext = nullptr;
        m_bBroken = true;
        throw uno::RuntimeException();
    }
 
    m_nDigested += aToDigest.getLength();
}
 
uno::Sequence< ::sal_Int8 > SAL_CALL ODigestContext::finalizeDigestAndDispose()
{
    std::scoped_lock aGuard( m_aMutex );
 
    if ( m_bBroken )
        throw uno::RuntimeException();
 
    if ( m_bDisposed )
        throw lang::DisposedException();
 
    uno::Sequence< sal_Int8 > aResult( m_nDigestLength );
    unsigned int nResultLen = 0;
    if ( PK11_DigestFinal( m_pContext, reinterpret_cast< unsigned char* >( aResult.getArray() ), &nResultLen, aResult.getLength() ) != SECSuccess )
    {
        PK11_DestroyContext( m_pContext, PR_TRUE );
        m_pContext = nullptr;
        m_bBroken = true;
        throw uno::RuntimeException();
    }
 
    PK11_DestroyContext( m_pContext, PR_TRUE );
    m_pContext = nullptr;
    m_bDisposed = true;
 
    aResult.realloc( nResultLen );
    return aResult;
}
 
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