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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 "oox/helper/zipstorage.hxx"
21 :
22 : #include <com/sun/star/embed/ElementModes.hpp>
23 : #include <com/sun/star/embed/XStorage.hpp>
24 : #include <com/sun/star/embed/XTransactedObject.hpp>
25 : #include <com/sun/star/io/XInputStream.hpp>
26 : #include <com/sun/star/io/XOutputStream.hpp>
27 : #include <com/sun/star/lang/XMultiServiceFactory.hpp>
28 : #include <com/sun/star/uno/XComponentContext.hpp>
29 : #include <osl/diagnose.h>
30 : #include <comphelper/storagehelper.hxx>
31 : #include "oox/helper/helper.hxx"
32 :
33 : namespace oox {
34 :
35 : using namespace ::com::sun::star::container;
36 : using namespace ::com::sun::star::embed;
37 : using namespace ::com::sun::star::io;
38 : using namespace ::com::sun::star::lang;
39 : using namespace ::com::sun::star::uno;
40 :
41 10883 : ZipStorage::ZipStorage( const Reference< XComponentContext >& rxContext, const Reference< XInputStream >& rxInStream ) :
42 10883 : StorageBase( rxInStream, false )
43 : {
44 : OSL_ENSURE( rxContext.is(), "ZipStorage::ZipStorage - missing component context" );
45 : // create base storage object
46 10883 : if( rxContext.is() ) try
47 : {
48 : /* #i105325# ::comphelper::OStorageHelper::GetStorageFromInputStream()
49 : cannot be used here as it will open a storage with format type
50 : 'PackageFormat' that will not work with OOXML packages.
51 :
52 : #161971# The MS-document storages should always be opened in repair
53 : mode to ignore the format errors and get so much info as possible.
54 : I hate this solution, but it seems to be the only consistent way to
55 : handle the MS documents.
56 :
57 : TODO: #i105410# switch to 'OFOPXMLFormat' and use its
58 : implementation of relations handling.
59 : */
60 20077 : mxStorage = ::comphelper::OStorageHelper::GetStorageOfFormatFromInputStream(
61 : ZIP_STORAGE_FORMAT_STRING, rxInStream, rxContext,
62 9194 : false ); // DEV300_m80: Was sal_True, but DOCX and others did not load
63 : }
64 1689 : catch (Exception const& e)
65 : {
66 : SAL_WARN("oox.storage", "ZipStorage::ZipStorage "
67 : "exception opening input storage: " << e.Message);
68 : }
69 10883 : }
70 :
71 644 : ZipStorage::ZipStorage( const Reference< XComponentContext >& rxContext, const Reference< XStream >& rxStream ) :
72 644 : StorageBase( rxStream, false )
73 : {
74 : OSL_ENSURE( rxContext.is(), "ZipStorage::ZipStorage - missing component context" );
75 : // create base storage object
76 644 : if( rxContext.is() ) try
77 : {
78 644 : const sal_Int32 nOpenMode = ElementModes::READWRITE | ElementModes::TRUNCATE;
79 1288 : mxStorage = ::comphelper::OStorageHelper::GetStorageOfFormatFromStream(
80 644 : OFOPXML_STORAGE_FORMAT_STRING, rxStream, nOpenMode, rxContext, true );
81 : }
82 0 : catch (Exception const& e)
83 : {
84 : SAL_WARN("oox.storage", "ZipStorage::ZipStorage "
85 : "exception opening output storage: " << e.Message);
86 : }
87 644 : }
88 :
89 10323 : ZipStorage::ZipStorage( const ZipStorage& rParentStorage, const Reference< XStorage >& rxStorage, const OUString& rElementName ) :
90 10323 : StorageBase( rParentStorage, rElementName, rParentStorage.isReadOnly() ),
91 10323 : mxStorage( rxStorage )
92 : {
93 : SAL_WARN_IF(!mxStorage.is(), "oox.storage", "ZipStorage::ZipStorage "
94 : " - missing storage" );
95 10323 : }
96 :
97 34747 : ZipStorage::~ZipStorage()
98 : {
99 34747 : }
100 :
101 8953 : bool ZipStorage::implIsStorage() const
102 : {
103 8953 : return mxStorage.is();
104 : }
105 :
106 2162 : Reference< XStorage > ZipStorage::implGetXStorage() const
107 : {
108 2162 : return mxStorage;
109 : }
110 :
111 0 : void ZipStorage::implGetElementNames( ::std::vector< OUString >& orElementNames ) const
112 : {
113 0 : Sequence< OUString > aNames;
114 0 : if( mxStorage.is() ) try
115 : {
116 0 : aNames = mxStorage->getElementNames();
117 0 : if( aNames.getLength() > 0 )
118 0 : orElementNames.insert( orElementNames.end(), aNames.getConstArray(), aNames.getConstArray() + aNames.getLength() );
119 : }
120 0 : catch (Exception const& e)
121 : {
122 : SAL_INFO("oox.storage", "getElementNames: exception: " << e.Message);
123 0 : }
124 0 : }
125 :
126 11531 : StorageRef ZipStorage::implOpenSubStorage( const OUString& rElementName, bool bCreateMissing )
127 : {
128 11531 : Reference< XStorage > xSubXStorage;
129 11531 : bool bMissing = false;
130 11531 : if( mxStorage.is() ) try
131 : {
132 : // XStorage::isStorageElement may throw various exceptions...
133 11531 : if( mxStorage->isStorageElement( rElementName ) )
134 24693 : xSubXStorage = mxStorage->openStorageElement(
135 16462 : rElementName, ::com::sun::star::embed::ElementModes::READ );
136 : }
137 6600 : catch( NoSuchElementException& )
138 : {
139 3300 : bMissing = true;
140 : }
141 0 : catch (Exception const& e)
142 : {
143 : SAL_INFO("oox.storage", "openStorageElement: exception: " << e.Message);
144 : }
145 :
146 11531 : if( bMissing && bCreateMissing ) try
147 : {
148 6276 : xSubXStorage = mxStorage->openStorageElement(
149 4184 : rElementName, ::com::sun::star::embed::ElementModes::READWRITE );
150 : }
151 0 : catch (Exception const& e)
152 : {
153 : SAL_INFO("oox.storage", "openStorageElement: exception: " << e.Message);
154 : }
155 :
156 11531 : StorageRef xSubStorage;
157 11531 : if( xSubXStorage.is() )
158 10323 : xSubStorage.reset( new ZipStorage( *this, xSubXStorage, rElementName ) );
159 11531 : return xSubStorage;
160 : }
161 :
162 9761 : Reference< XInputStream > ZipStorage::implOpenInputStream( const OUString& rElementName )
163 : {
164 9761 : Reference< XInputStream > xInStream;
165 9761 : if( mxStorage.is() ) try
166 : {
167 9761 : xInStream.set( mxStorage->openStreamElement( rElementName, ::com::sun::star::embed::ElementModes::READ ), UNO_QUERY );
168 : }
169 434 : catch (Exception const& e)
170 : {
171 : SAL_INFO("oox.storage", "openStreamElement: exception: " << e.Message);
172 : }
173 9761 : return xInStream;
174 : }
175 :
176 7393 : Reference< XOutputStream > ZipStorage::implOpenOutputStream( const OUString& rElementName )
177 : {
178 7393 : Reference< XOutputStream > xOutStream;
179 7393 : if( mxStorage.is() ) try
180 : {
181 7393 : xOutStream.set( mxStorage->openStreamElement( rElementName, ::com::sun::star::embed::ElementModes::READWRITE ), UNO_QUERY );
182 : }
183 0 : catch (Exception const& e)
184 : {
185 : SAL_INFO("oox.storage", "openStreamElement: exception: " << e.Message);
186 : }
187 7393 : return xOutStream;
188 : }
189 :
190 2655 : void ZipStorage::implCommit() const
191 : {
192 : try
193 : {
194 2655 : Reference< XTransactedObject >( mxStorage, UNO_QUERY_THROW )->commit();
195 : }
196 0 : catch (Exception const& e)
197 : {
198 : SAL_WARN("oox.storage", "commit: exception: " << e.Message);
199 : }
200 2655 : }
201 :
202 246 : } // namespace oox
203 :
204 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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