xmloff/source/core/XMLBase64ImportContext.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 <com/sun/star/io/XOutputStream.hpp>
  21
  22 #include <sax/tools/converter.hxx>
  23
  24 #include <xmloff/xmlimp.hxx>
  25 #include <xmloff/XMLBase64ImportContext.hxx>
  26
  27 using namespace ::com::sun::star::uno;
  28 using namespace ::com::sun::star::xml::sax;
  29 using namespace ::com::sun::star::io;
  30
  31 TYPEINIT1( XMLBase64ImportContext, SvXMLImportContext );
  32
  33 XMLBase64ImportContext::XMLBase64ImportContext(
  34         SvXMLImport& rImport, sal_uInt16 nPrfx, const OUString& rLName,
  35         const Reference< XAttributeList >&,
  36         const Reference< XOutputStream >& rOut ) :
  37     SvXMLImportContext( rImport, nPrfx, rLName ),
  38     xOut( rOut )
  39 {
  40 }
  41
  42 XMLBase64ImportContext::~XMLBase64ImportContext()
  43 {
  44 }
  45
  46 void XMLBase64ImportContext::EndElement()
  47 {
  48     xOut->closeOutput();
  49 }
  50
  51 void XMLBase64ImportContext::Characters( const OUString& rChars )
  52 {
  53     OUString sTrimmedChars( rChars. trim() );
  54     if( !sTrimmedChars.isEmpty() )
  55     {
  56         OUString sChars;
  57         if( !sBase64CharsLeft.isEmpty() )
  58         {
  59             sChars = sBase64CharsLeft;
  60             sChars += sTrimmedChars;
  61             sBase64CharsLeft.clear();
  62         }
  63         else
  64         {
  65             sChars = sTrimmedChars;
  66         }
  67         Sequence< sal_Int8 > aBuffer( (sChars.getLength() / 4) * 3 );
  68                 sal_Int32 const nCharsDecoded =
  69                                 ::sax::Converter::decodeBase64SomeChars( aBuffer, sChars );
  70         xOut->writeBytes( aBuffer );
  71         if( nCharsDecoded != sChars.getLength() )
  72             sBase64CharsLeft = sChars.copy( nCharsDecoded );
  73     }
  74 }
  75
  76 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */