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If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 #include "oox/helper/zipstorage.hxx" 29 30 #include <com/sun/star/embed/ElementModes.hpp> 31 #include <com/sun/star/embed/XStorage.hpp> 32 #include <com/sun/star/embed/XTransactedObject.hpp> 33 #include <com/sun/star/io/XInputStream.hpp> 34 #include <com/sun/star/io/XOutputStream.hpp> 35 #include <com/sun/star/lang/XMultiServiceFactory.hpp> 36 #include <com/sun/star/uno/XComponentContext.hpp> 37 #include <comphelper/storagehelper.hxx> 38 #include "oox/helper/helper.hxx" 39 40 namespace oox { 41 42 // ============================================================================ 43 44 using namespace ::com::sun::star::container; 45 using namespace ::com::sun::star::embed; 46 using namespace ::com::sun::star::io; 47 using namespace ::com::sun::star::lang; 48 using namespace ::com::sun::star::uno; 49 50 using ::rtl::OUString; 51 52 // ============================================================================ 53 54 ZipStorage::ZipStorage( const Reference< XComponentContext >& rxContext, const Reference< XInputStream >& rxInStream ) : 55 StorageBase( rxInStream, false ) 56 { 57 OSL_ENSURE( rxContext.is(), "ZipStorage::ZipStorage - missing component context" ); 58 // create base storage object 59 if( rxContext.is() ) try 60 { 61 /* #i105325# ::comphelper::OStorageHelper::GetStorageFromInputStream() 62 cannot be used here as it will open a storage with format type 63 'PackageFormat' that will not work with OOXML packages. 64 65 #161971# The MS-document storages should always be opened in repair 66 mode to ignore the format errors and get so much info as possible. 67 I hate this solution, but it seems to be the only consistent way to 68 handle the MS documents. 69 70 TODO: #i105410# switch to 'OFOPXMLFormat' and use its 71 implementation of relations handling. 72 */ 73 Reference< XMultiServiceFactory > xFactory( rxContext->getServiceManager(), UNO_QUERY_THROW ); 74 mxStorage = ::comphelper::OStorageHelper::GetStorageOfFormatFromInputStream( 75 ZIP_STORAGE_FORMAT_STRING, rxInStream, xFactory, 76 sal_False ); // DEV300_m80: Was sal_True, but DOCX and others did not load 77 } 78 catch( Exception& ) 79 { 80 } 81 } 82 83 ZipStorage::ZipStorage( const Reference< XComponentContext >& rxContext, const Reference< XStream >& rxStream ) : 84 StorageBase( rxStream, false ) 85 { 86 OSL_ENSURE( rxContext.is(), "ZipStorage::ZipStorage - missing component context" ); 87 // create base storage object 88 if( rxContext.is() ) try 89 { 90 Reference< XMultiServiceFactory > xFactory( rxContext->getServiceManager(), UNO_QUERY_THROW ); 91 const sal_Int32 nOpenMode = ElementModes::READWRITE | ElementModes::TRUNCATE; 92 mxStorage = ::comphelper::OStorageHelper::GetStorageOfFormatFromStream( 93 OFOPXML_STORAGE_FORMAT_STRING, rxStream, nOpenMode, xFactory, sal_True ); 94 } 95 catch( Exception& ) 96 { 97 OSL_ENSURE( false, "ZipStorage::ZipStorage - cannot open output storage" ); 98 } 99 } 100 101 ZipStorage::ZipStorage( const ZipStorage& rParentStorage, const Reference< XStorage >& rxStorage, const OUString& rElementName ) : 102 StorageBase( rParentStorage, rElementName, rParentStorage.isReadOnly() ), 103 mxStorage( rxStorage ) 104 { 105 OSL_ENSURE( mxStorage.is(), "ZipStorage::ZipStorage - missing storage" ); 106 } 107 108 ZipStorage::~ZipStorage() 109 { 110 } 111 112 bool ZipStorage::implIsStorage() const 113 { 114 return mxStorage.is(); 115 } 116 117 Reference< XStorage > ZipStorage::implGetXStorage() const 118 { 119 return mxStorage; 120 } 121 122 void ZipStorage::implGetElementNames( ::std::vector< OUString >& orElementNames ) const 123 { 124 Sequence< OUString > aNames; 125 if( mxStorage.is() ) try 126 { 127 aNames = mxStorage->getElementNames(); 128 if( aNames.getLength() > 0 ) 129 orElementNames.insert( orElementNames.end(), aNames.getConstArray(), aNames.getConstArray() + aNames.getLength() ); 130 } 131 catch( Exception& ) 132 { 133 } 134 } 135 136 StorageRef ZipStorage::implOpenSubStorage( const OUString& rElementName, bool bCreateMissing ) 137 { 138 Reference< XStorage > xSubXStorage; 139 bool bMissing = false; 140 if( mxStorage.is() ) try 141 { 142 // XStorage::isStorageElement may throw various exceptions... 143 if( mxStorage->isStorageElement( rElementName ) ) 144 xSubXStorage = mxStorage->openStorageElement( 145 rElementName, ::com::sun::star::embed::ElementModes::READ ); 146 } 147 catch( NoSuchElementException& ) 148 { 149 bMissing = true; 150 } 151 catch( Exception& ) 152 { 153 } 154 155 if( bMissing && bCreateMissing ) try 156 { 157 xSubXStorage = mxStorage->openStorageElement( 158 rElementName, ::com::sun::star::embed::ElementModes::READWRITE ); 159 } 160 catch( Exception& ) 161 { 162 } 163 164 StorageRef xSubStorage; 165 if( xSubXStorage.is() ) 166 xSubStorage.reset( new ZipStorage( *this, xSubXStorage, rElementName ) ); 167 return xSubStorage; 168 } 169 170 Reference< XInputStream > ZipStorage::implOpenInputStream( const OUString& rElementName ) 171 { 172 Reference< XInputStream > xInStream; 173 if( mxStorage.is() ) try 174 { 175 xInStream.set( mxStorage->openStreamElement( rElementName, ::com::sun::star::embed::ElementModes::READ ), UNO_QUERY ); 176 } 177 catch( Exception& ) 178 { 179 } 180 return xInStream; 181 } 182 183 Reference< XOutputStream > ZipStorage::implOpenOutputStream( const OUString& rElementName ) 184 { 185 Reference< XOutputStream > xOutStream; 186 if( mxStorage.is() ) try 187 { 188 xOutStream.set( mxStorage->openStreamElement( rElementName, ::com::sun::star::embed::ElementModes::READWRITE ), UNO_QUERY ); 189 } 190 catch( Exception& ) 191 { 192 } 193 return xOutStream; 194 } 195 196 void ZipStorage::implCommit() const 197 { 198 try 199 { 200 Reference< XTransactedObject >( mxStorage, UNO_QUERY_THROW )->commit(); 201 } 202 catch( Exception& ) 203 { 204 } 205 } 206 207 // ============================================================================ 208 209 } // namespace oox 210