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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 "sddetect.hxx"
21 :
22 : #include <com/sun/star/lang/XMultiServiceFactory.hpp>
23 : #include <com/sun/star/beans/PropertyValue.hpp>
24 : #include <cppuhelper/supportsservice.hxx>
25 : #include <com/sun/star/container/XNameAccess.hpp>
26 : #include <com/sun/star/io/XInputStream.hpp>
27 : #include <vcl/graphicfilter.hxx>
28 : #include <rtl/ustring.h>
29 : #include <sfx2/docfile.hxx>
30 : #include <sfx2/docfilt.hxx>
31 : #include <sfx2/fcontnr.hxx>
32 : #include <vcl/FilterConfigItem.hxx>
33 : #include <sot/storage.hxx>
34 : #include <unotools/mediadescriptor.hxx>
35 :
36 : using namespace ::com::sun::star;
37 : using namespace ::com::sun::star::uno;
38 : using namespace ::com::sun::star::io;
39 : using namespace ::com::sun::star::task;
40 : using namespace ::com::sun::star::beans;
41 : using namespace ::com::sun::star::lang;
42 : using utl::MediaDescriptor;
43 :
44 2 : SdFilterDetect::SdFilterDetect( const Reference < XMultiServiceFactory >& )
45 : {
46 2 : }
47 :
48 4 : SdFilterDetect::~SdFilterDetect()
49 : {
50 4 : }
51 :
52 2 : OUString SAL_CALL SdFilterDetect::detect( Sequence< beans::PropertyValue >& lDescriptor ) throw( RuntimeException, std::exception )
53 : {
54 2 : MediaDescriptor aMediaDesc( lDescriptor );
55 4 : OUString aTypeName = aMediaDesc.getUnpackedValueOrDefault( MediaDescriptor::PROP_TYPENAME(), OUString() );
56 4 : uno::Reference< io::XInputStream > xInStream ( aMediaDesc[MediaDescriptor::PROP_INPUTSTREAM()], uno::UNO_QUERY );
57 2 : if ( !xInStream.is() )
58 0 : return OUString();
59 :
60 4 : SfxMedium aMedium;
61 2 : aMedium.UseInteractionHandler( false );
62 2 : aMedium.setStreamToLoadFrom( xInStream, true );
63 :
64 2 : SvStream *pInStrm = aMedium.GetInStream();
65 2 : if ( !pInStrm || pInStrm->GetError() )
66 0 : return OUString();
67 :
68 2 : if ( aTypeName.startsWith( "impress_MS_PowerPoint_97" ) )
69 : {
70 : // Do not attempt to create an SotStorage on a
71 : // 0-length stream as that would create the compound
72 : // document header on the stream and effectively write to
73 : // disk!
74 2 : pInStrm->Seek( STREAM_SEEK_TO_BEGIN );
75 2 : if ( pInStrm->remainingSize() == 0 )
76 0 : return OUString();
77 :
78 : try
79 : {
80 2 : SotStorageRef aStorage = new SotStorage( pInStrm, false );
81 2 : if ( !aStorage->GetError() && aStorage->IsStream( "PowerPoint Document" ) )
82 2 : return aTypeName;
83 : }
84 0 : catch (const css::ucb::ContentCreationException&)
85 : {
86 : }
87 : }
88 : else
89 : {
90 0 : pInStrm->Seek( STREAM_SEEK_TO_BEGIN );
91 :
92 0 : const OUString aFileName( aMediaDesc.getUnpackedValueOrDefault( MediaDescriptor::PROP_URL(), OUString() ) );
93 0 : GraphicDescriptor aDesc( *pInStrm, &aFileName );
94 0 : if( !aDesc.Detect( false ) )
95 : {
96 0 : INetURLObject aCheckURL( aFileName );
97 0 : if( aCheckURL.getExtension().equalsIgnoreAsciiCase("cgm") )
98 : {
99 : sal_uInt8 n8;
100 0 : pInStrm->Seek( STREAM_SEEK_TO_BEGIN );
101 0 : pInStrm->ReadUChar( n8 );
102 0 : if ( ( n8 & 0xf0 ) == 0 )
103 : // we are supporting binary cgm format only, so
104 : // this is a small test to exclude cgm text
105 0 : return OUString("impress_CGM_Computer_Graphics_Metafile");
106 0 : }
107 : }
108 : else
109 : {
110 0 : OUString aShortName( GraphicDescriptor::GetImportFormatShortName( aDesc.GetFileFormat() ) );
111 0 : GraphicFilter &rGrfFilter = GraphicFilter::GetGraphicFilter();
112 0 : const OUString aName( rGrfFilter.GetImportFormatTypeName( rGrfFilter.GetImportFormatNumberForShortName( aShortName ) ) );
113 :
114 0 : if ( aShortName.equalsIgnoreAsciiCase( "PCD" ) ) // there is a multiple pcd selection possible
115 : {
116 0 : sal_Int32 nBase = 2; // default Base0
117 0 : if ( aTypeName == "pcd_Photo_CD_Base4" )
118 0 : nBase = 1;
119 0 : else if ( aTypeName == "pcd_Photo_CD_Base16" )
120 0 : nBase = 0;
121 0 : FilterConfigItem aFilterConfigItem( "Office.Common/Filter/Graphic/Import/PCD" );
122 0 : aFilterConfigItem.WriteInt32( "Resolution" , nBase );
123 : }
124 :
125 0 : SfxFilterMatcher aMatch("sdraw");
126 0 : const SfxFilter* pFilter = aMatch.GetFilter4FilterName( aName );
127 0 : if ( pFilter )
128 0 : return pFilter->GetRealTypeName();
129 0 : }
130 : }
131 :
132 2 : return OUString();
133 : }
134 :
135 : // XServiceInfo
136 0 : OUString SAL_CALL SdFilterDetect::getImplementationName() throw( RuntimeException, std::exception )
137 : {
138 0 : return impl_getStaticImplementationName();
139 : }
140 :
141 : // XServiceInfo
142 0 : sal_Bool SAL_CALL SdFilterDetect::supportsService( const OUString& sServiceName ) throw( RuntimeException, std::exception )
143 : {
144 0 : return cppu::supportsService(this, sServiceName);
145 : }
146 :
147 : // XServiceInfo
148 0 : Sequence< OUString > SAL_CALL SdFilterDetect::getSupportedServiceNames() throw( RuntimeException, std::exception )
149 : {
150 0 : return impl_getStaticSupportedServiceNames();
151 : }
152 :
153 : // Helper for XServiceInfo
154 2 : Sequence< OUString > SdFilterDetect::impl_getStaticSupportedServiceNames()
155 : {
156 2 : Sequence< OUString > seqServiceNames( 1 );
157 2 : seqServiceNames.getArray() [0] = "com.sun.star.frame.ExtendedTypeDetection" ;
158 2 : return seqServiceNames ;
159 : }
160 :
161 : // Helper for XServiceInfo
162 4 : OUString SdFilterDetect::impl_getStaticImplementationName()
163 : {
164 4 : return OUString( "com.sun.star.comp.draw.FormatDetector" );
165 : }
166 :
167 : // Helper for registry
168 2 : Reference< XInterface > SAL_CALL SdFilterDetect::impl_createInstance( const Reference< XMultiServiceFactory >& xServiceManager ) throw( Exception )
169 : {
170 : return static_cast< cppu::OWeakObject * >(
171 2 : new SdFilterDetect( xServiceManager ) );
172 6 : }
173 :
174 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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