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
  21 #include <pk11pub.h>
  22 #include "digestcontext.hxx"
  23
  24 using namespace ::com::sun::star;
  25
  26 ODigestContext::~ODigestContext()
  27 {
  28     if ( m_pContext )
  29     {
  30         PK11_DestroyContext( m_pContext, PR_TRUE );
  31         m_pContext = NULL;
  32     }
  33 }
  34
  35 void SAL_CALL ODigestContext::updateDigest( const uno::Sequence< ::sal_Int8 >& aData )
  36     throw (lang::DisposedException, uno::RuntimeException)
  37 {
  38     ::osl::MutexGuard aGuard( m_aMutex );
  39
  40     if ( m_bBroken )
  41         throw uno::RuntimeException();
  42
  43     if ( m_bDisposed )
  44         throw lang::DisposedException();
  45
  46     if ( !m_b1KData || m_nDigested < 1024 )
  47     {
  48         uno::Sequence< sal_Int8 > aToDigest = aData;
  49         if ( m_b1KData && m_nDigested + aData.getLength() > 1024 )
  50             aToDigest.realloc( 1024 - m_nDigested );
  51
  52         if ( PK11_DigestOp( m_pContext, reinterpret_cast< const unsigned char* >( aToDigest.getConstArray() ), aToDigest.getLength() ) != SECSuccess )
  53         {
  54             PK11_DestroyContext( m_pContext, PR_TRUE );
  55             m_pContext = NULL;
  56             m_bBroken = true;
  57             throw uno::RuntimeException();
  58         }
  59
  60         m_nDigested += aToDigest.getLength();
  61     }
  62 }
  63
  64 uno::Sequence< ::sal_Int8 > SAL_CALL ODigestContext::finalizeDigestAndDispose()
  65     throw (lang::DisposedException, uno::RuntimeException)
  66 {
  67     ::osl::MutexGuard aGuard( m_aMutex );
  68
  69     if ( m_bBroken )
  70         throw uno::RuntimeException();
  71
  72     if ( m_bDisposed )
  73         throw lang::DisposedException();
  74
  75     uno::Sequence< sal_Int8 > aResult( m_nDigestLength );
  76     unsigned int nResultLen = 0;
  77     if ( PK11_DigestFinal( m_pContext, reinterpret_cast< unsigned char* >( aResult.getArray() ), &nResultLen, aResult.getLength() ) != SECSuccess )
  78     {
  79         PK11_DestroyContext( m_pContext, PR_TRUE );
  80         m_pContext = NULL;
  81         m_bBroken = true;
  82         throw uno::RuntimeException();
  83     }
  84
  85     PK11_DestroyContext( m_pContext, PR_TRUE );
  86     m_pContext = NULL;
  87     m_bDisposed = true;
  88
  89     aResult.realloc( nResultLen );
  90     return aResult;
  91 }
  92
  93 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */