xref: /trunk/main/xmloff/source/core/XMLBase64Export.cxx (revision cdf0e10c4e3984b49a9502b011690b615761d4a3)
1 /*************************************************************************
2  *
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * Copyright 2000, 2010 Oracle and/or its affiliates.
6  *
7  * OpenOffice.org - a multi-platform office productivity suite
8  *
9  * This file is part of OpenOffice.org.
10  *
11  * OpenOffice.org is free software: you can redistribute it and/or modify
12  * it under the terms of the GNU Lesser General Public License version 3
13  * only, as published by the Free Software Foundation.
14  *
15  * OpenOffice.org is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU Lesser General Public License version 3 for more details
19  * (a copy is included in the LICENSE file that accompanied this code).
20  *
21  * You should have received a copy of the GNU Lesser General Public License
22  * version 3 along with OpenOffice.org.  If not, see
23  * <http://www.openoffice.org/license.html>
24  * for a copy of the LGPLv3 License.
25  *
26  ************************************************************************/
27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_xmloff.hxx"
30 #include <rtl/ustrbuf.hxx>
31 #include <com/sun/star/io/XInputStream.hpp>
32 #include <xmloff/xmluconv.hxx>
33 #include <xmloff/xmlexp.hxx>
34 #include "xmloff/xmlnmspe.hxx"
35 #include "XMLBase64Export.hxx"
36 
37 using namespace ::com::sun::star::uno;
38 using namespace ::com::sun::star::io;
39 using ::rtl::OUString;
40 using ::rtl::OUStringBuffer;
41 
42 #define INPUT_BUFFER_SIZE 54
43 #define OUTPUT_BUFFER_SIZE 72
44 
45 XMLBase64Export::XMLBase64Export( SvXMLExport& rExp ) :
46     rExport( rExp ){
47 }
48 
49 sal_Bool XMLBase64Export::exportXML( const Reference < XInputStream> & rIn )
50 {
51     sal_Bool bRet = sal_True;
52     try
53     {
54         Sequence < sal_Int8 > aInBuff( INPUT_BUFFER_SIZE );
55         OUStringBuffer aOutBuff( OUTPUT_BUFFER_SIZE );
56         sal_Int32 nRead;
57         do
58         {
59             nRead = rIn->readBytes( aInBuff, INPUT_BUFFER_SIZE );
60             if( nRead > 0 )
61             {
62                 GetExport().GetMM100UnitConverter().encodeBase64( aOutBuff,
63                                                                   aInBuff );
64                 GetExport().Characters( aOutBuff.makeStringAndClear() );
65                 if( nRead == INPUT_BUFFER_SIZE )
66                     GetExport().IgnorableWhitespace();
67             }
68         }
69         while( nRead == INPUT_BUFFER_SIZE );
70     }
71     catch( ... )
72     {
73         bRet = sal_False;
74     }
75 
76     return bRet;
77 }
78 
79 sal_Bool XMLBase64Export::exportElement(
80             const Reference < XInputStream > & rIn,
81             sal_uInt16 nNamespace,
82             enum ::xmloff::token::XMLTokenEnum eName )
83 {
84     SvXMLElementExport aElem( GetExport(), nNamespace, eName, sal_True,
85                               sal_True );
86     return exportXML( rIn );
87 }
88 
89 sal_Bool XMLBase64Export::exportOfficeBinaryDataElement(
90             const Reference < XInputStream > & rIn )
91 {
92     return exportElement( rIn, XML_NAMESPACE_OFFICE,
93                           ::xmloff::token::XML_BINARY_DATA );
94 }
95 
96