xmlsecurity/source/xmlsec/nss/digestcontext.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sal/config.h>
  21
  22 #include <com/sun/star/lang/DisposedException.hpp>
  23
  24 #include <pk11pub.h>
  25 #include "digestcontext.hxx"
  26
  27 using namespace ::com::sun::star;
  28
  29 ODigestContext::~ODigestContext()
  30 {
  31     if ( m_pContext )
  32     {
  33         PK11_DestroyContext( m_pContext, PR_TRUE );
  34         m_pContext = nullptr;
  35     }
  36 }
  37
  38 void SAL_CALL ODigestContext::updateDigest( const uno::Sequence< ::sal_Int8 >& aData )
  39 {
  40     ::osl::MutexGuard aGuard( m_aMutex );
  41
  42     if ( m_bBroken )
  43         throw uno::RuntimeException();
  44
  45     if ( m_bDisposed )
  46         throw lang::DisposedException();
  47
  48     if (m_b1KData && m_nDigested >= 1024)
  49         return;
  50
  51     uno::Sequence< sal_Int8 > aToDigest = aData;
  52     if ( m_b1KData && m_nDigested + aData.getLength() > 1024 )
  53         aToDigest.realloc( 1024 - m_nDigested );
  54
  55     if ( PK11_DigestOp( m_pContext, reinterpret_cast< const unsigned char* >( aToDigest.getConstArray() ), aToDigest.getLength() ) != SECSuccess )
  56     {
  57         PK11_DestroyContext( m_pContext, PR_TRUE );
  58         m_pContext = nullptr;
  59         m_bBroken = true;
  60         throw uno::RuntimeException();
  61     }
  62
  63     m_nDigested += aToDigest.getLength();
  64 }
  65
  66 uno::Sequence< ::sal_Int8 > SAL_CALL ODigestContext::finalizeDigestAndDispose()
  67 {
  68     ::osl::MutexGuard aGuard( m_aMutex );
  69
  70     if ( m_bBroken )
  71         throw uno::RuntimeException();
  72
  73     if ( m_bDisposed )
  74         throw lang::DisposedException();
  75
  76     uno::Sequence< sal_Int8 > aResult( m_nDigestLength );
  77     unsigned int nResultLen = 0;
  78     if ( PK11_DigestFinal( m_pContext, reinterpret_cast< unsigned char* >( aResult.getArray() ), &nResultLen, aResult.getLength() ) != SECSuccess )
  79     {
  80         PK11_DestroyContext( m_pContext, PR_TRUE );
  81         m_pContext = nullptr;
  82         m_bBroken = true;
  83         throw uno::RuntimeException();
  84     }
  85
  86     PK11_DestroyContext( m_pContext, PR_TRUE );
  87     m_pContext = nullptr;
  88     m_bDisposed = true;
  89
  90     aResult.realloc( nResultLen );
  91     return aResult;
  92 }
  93
  94 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */