Branch data     Line data    Source code

       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 <rtl/cipher.h>
      22                 :            : #include <rtl/ref.hxx>
      23                 :            : 
      24                 :            : #include "blowfishcontext.hxx"
      25                 :            : 
      26                 :            : using namespace ::com::sun::star;
      27                 :            : 
      28                 :            : // static
      29                 :         24 : uno::Reference< xml::crypto::XCipherContext > BlowfishCFB8CipherContext::Create( const uno::Sequence< sal_Int8 >& aDerivedKey, const uno::Sequence< sal_Int8 >& aInitVector, bool bEncrypt )
      30                 :            : {
      31         [ +  - ]:         24 :     ::rtl::Reference< BlowfishCFB8CipherContext > xResult = new BlowfishCFB8CipherContext();
      32                 :         24 :     xResult->m_pCipher = rtl_cipher_create( rtl_Cipher_AlgorithmBF, rtl_Cipher_ModeStream );
      33         [ -  + ]:         24 :     if ( !xResult->m_pCipher )
      34                 :            :         throw uno::RuntimeException( ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Can not create cipher!")),
      35 [ #  # ][ #  # ]:          0 :                                      uno::Reference< XInterface >() );
      36                 :            : 
      37         [ -  + ]:         24 :     if ( rtl_Cipher_E_None != rtl_cipher_init(
      38                 :         24 :                                 xResult->m_pCipher,
      39                 :            :                                 bEncrypt ? rtl_Cipher_DirectionEncode : rtl_Cipher_DirectionDecode,
      40                 :         24 :                                 reinterpret_cast< const sal_uInt8* >( aDerivedKey.getConstArray() ),
      41                 :         24 :                                 aDerivedKey.getLength(),
      42                 :         24 :                                 reinterpret_cast< const sal_uInt8* >( aInitVector.getConstArray() ),
      43         [ -  + ]:         72 :                                 aInitVector.getLength() ) )
      44                 :            :     {
      45                 :            :         throw uno::RuntimeException( ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Can not initialize cipher!") ),
      46 [ #  # ][ #  # ]:          0 :                                      uno::Reference< XInterface >() );
      47                 :            :     }
      48                 :            : 
      49                 :         24 :     xResult->m_bEncrypt = bEncrypt;
      50                 :            : 
      51 [ +  - ][ +  - ]:         24 :     return uno::Reference< xml::crypto::XCipherContext >( xResult.get() );
      52                 :            : }
      53                 :            : 
      54         [ +  - ]:         24 : BlowfishCFB8CipherContext::~BlowfishCFB8CipherContext()
      55                 :            : {
      56         [ -  + ]:         24 :     if ( m_pCipher )
      57                 :            :     {
      58                 :          0 :         rtl_cipher_destroy ( m_pCipher );
      59                 :          0 :         m_pCipher = NULL;
      60                 :            :     }
      61         [ -  + ]:         48 : }
      62                 :            : 
      63                 :         24 : uno::Sequence< sal_Int8 > SAL_CALL BlowfishCFB8CipherContext::convertWithCipherContext( const uno::Sequence< ::sal_Int8 >& aData )
      64                 :            :     throw( lang::IllegalArgumentException, lang::DisposedException, uno::RuntimeException )
      65                 :            : {
      66         [ +  - ]:         24 :     ::osl::MutexGuard aGuard( m_aMutex );
      67         [ -  + ]:         24 :     if ( !m_pCipher )
      68         [ #  # ]:          0 :         throw lang::DisposedException();
      69                 :            : 
      70         [ +  - ]:         24 :     uno::Sequence< sal_Int8 > aResult( aData.getLength() );
      71                 :         24 :     rtlCipherError nError = rtl_Cipher_E_None;
      72                 :            : 
      73         [ -  + ]:         24 :     if ( m_bEncrypt )
      74                 :            :     {
      75                 :            :         rtl_cipher_encode( m_pCipher,
      76                 :          0 :                           aData.getConstArray(),
      77                 :          0 :                           aData.getLength(),
      78         [ #  # ]:          0 :                           reinterpret_cast< sal_uInt8* >( aResult.getArray() ),
      79                 :          0 :                           aResult.getLength() );
      80                 :            :     }
      81                 :            :     else
      82                 :            :     {
      83                 :            :         rtl_cipher_decode( m_pCipher,
      84                 :         24 :                           aData.getConstArray(),
      85                 :         24 :                           aData.getLength(),
      86         [ +  - ]:         24 :                           reinterpret_cast< sal_uInt8* >( aResult.getArray() ),
      87                 :         48 :                           aResult.getLength() );
      88                 :            :     }
      89                 :            : 
      90         [ -  + ]:         24 :     if ( rtl_Cipher_E_None != nError )
      91                 :            :     {
      92                 :            :         throw uno::RuntimeException( ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Can not decrypt/encrypt with cipher!") ),
      93 [ #  # ][ #  # ]:          0 :                                      uno::Reference< uno::XInterface >() );
      94                 :            :     }
      95                 :            : 
      96         [ +  - ]:         24 :     return aResult;
      97                 :            : }
      98                 :            : 
      99                 :         24 : uno::Sequence< ::sal_Int8 > SAL_CALL BlowfishCFB8CipherContext::finalizeCipherContextAndDispose()
     100                 :            :     throw( lang::DisposedException, uno::RuntimeException )
     101                 :            : {
     102         [ +  - ]:         24 :     ::osl::MutexGuard aGuard( m_aMutex );
     103         [ -  + ]:         24 :     if ( !m_pCipher )
     104         [ #  # ]:          0 :         throw lang::DisposedException();
     105                 :            : 
     106                 :         24 :     rtl_cipher_destroy ( m_pCipher );
     107                 :         24 :     m_pCipher = NULL;
     108                 :            : 
     109 [ +  - ][ +  - ]:         24 :     return uno::Sequence< sal_Int8 >();
     110                 :            : }
     111                 :            : 
     112                 :            : 
     113                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */