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Diffstat (limited to 'package/source/zippackage/ZipPackageFolder.cxx')
| -rw-r--r-- | package/source/zippackage/ZipPackageFolder.cxx | 425 |
1 files changed, 425 insertions, 0 deletions
diff --git a/package/source/zippackage/ZipPackageFolder.cxx b/package/source/zippackage/ZipPackageFolder.cxx new file mode 100644 index 000000000..3a6b7ee19 --- /dev/null +++ b/package/source/zippackage/ZipPackageFolder.cxx @@ -0,0 +1,425 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <string.h> + +#include <ZipPackageFolder.hxx> +#include <ZipFile.hxx> +#include <ZipOutputStream.hxx> +#include <ZipPackageStream.hxx> +#include <PackageConstants.hxx> +#include "ZipPackageFolderEnumeration.hxx" +#include <com/sun/star/packages/zip/ZipConstants.hpp> +#include <com/sun/star/embed/StorageFormats.hpp> +#include <comphelper/sequence.hxx> +#include <comphelper/servicehelper.hxx> +#include <cppuhelper/supportsservice.hxx> +#include <cppuhelper/typeprovider.hxx> +#include <osl/diagnose.h> +#include <sal/log.hxx> +#include <rtl/digest.h> +#include "ContentInfo.hxx" +#include <com/sun/star/beans/PropertyValue.hpp> +#include <EncryptedDataHeader.hxx> +#include <rtl/instance.hxx> + +using namespace com::sun::star; +using namespace com::sun::star::packages::zip::ZipConstants; +using namespace com::sun::star::packages::zip; +using namespace com::sun::star::packages; +using namespace com::sun::star::container; +using namespace com::sun::star::beans; +using namespace com::sun::star::lang; +using namespace com::sun::star::io; +using namespace cppu; + +#if OSL_DEBUG_LEVEL > 0 +#define THROW_WHERE SAL_WHERE +#else +#define THROW_WHERE "" +#endif + +namespace { struct lcl_CachedImplId : public rtl::Static< cppu::OImplementationId, lcl_CachedImplId > {}; } + +ZipPackageFolder::ZipPackageFolder( const css::uno::Reference < css::uno::XComponentContext >& xContext, + sal_Int32 nFormat, + bool bAllowRemoveOnInsert ) +{ + m_xContext = xContext; + m_nFormat = nFormat; + mbAllowRemoveOnInsert = bAllowRemoveOnInsert; + SetFolder ( true ); + aEntry.nVersion = -1; + aEntry.nFlag = 0; + aEntry.nMethod = STORED; + aEntry.nTime = -1; + aEntry.nCrc = 0; + aEntry.nCompressedSize = 0; + aEntry.nSize = 0; + aEntry.nOffset = -1; +} + +ZipPackageFolder::~ZipPackageFolder() +{ +} + +bool ZipPackageFolder::LookForUnexpectedODF12Streams( const OUString& aPath ) +{ + bool bHasUnexpected = false; + + for (const auto& [rShortName, rxInfo] : maContents) + { + const ZipContentInfo &rInfo = *rxInfo; + + if ( rInfo.bFolder ) + { + if ( aPath == "META-INF/" ) + { + // META-INF is not allowed to contain subfolders + bHasUnexpected = true; + } + else + { + OUString sOwnPath = aPath + rShortName + "/"; + bHasUnexpected = rInfo.pFolder->LookForUnexpectedODF12Streams( sOwnPath ); + } + } + else + { + if ( aPath == "META-INF/" ) + { + if ( rShortName != "manifest.xml" + && rShortName.indexOf( "signatures" ) == -1 ) + { + // a stream from META-INF with unexpected name + bHasUnexpected = true; + } + + // streams from META-INF with expected names are allowed not to be registered in manifest.xml + } + else if ( !rInfo.pStream->IsFromManifest() ) + { + // the stream is not in META-INF and is not registered in manifest.xml, + // check whether it is an internal part of the package format + if ( !aPath.isEmpty() || rShortName != "mimetype" ) + { + // if it is not "mimetype" from the root it is not a part of the package + bHasUnexpected = true; + } + } + } + + if (bHasUnexpected) + break; + } + + return bHasUnexpected; +} + +void ZipPackageFolder::setChildStreamsTypeByExtension( const beans::StringPair& aPair ) +{ + OUString aExt; + if ( aPair.First.toChar() == '.' ) + aExt = aPair.First; + else + aExt = "." + aPair.First; + + for (const auto& [rShortName, rxInfo] : maContents) + { + const ZipContentInfo &rInfo = *rxInfo; + + if ( rInfo.bFolder ) + rInfo.pFolder->setChildStreamsTypeByExtension( aPair ); + else + { + sal_Int32 nPathLength = rShortName.getLength(); + sal_Int32 nExtLength = aExt.getLength(); + if ( nPathLength >= nExtLength && rShortName.match( aExt, nPathLength - nExtLength ) ) + rInfo.pStream->SetMediaType( aPair.Second ); + } + } +} + +css::uno::Sequence < sal_Int8 > ZipPackageFolder::getUnoTunnelId() +{ + return lcl_CachedImplId::get().getImplementationId(); +} + + // XNameContainer +void SAL_CALL ZipPackageFolder::insertByName( const OUString& aName, const uno::Any& aElement ) +{ + if (hasByName(aName)) + throw ElementExistException(THROW_WHERE ); + + uno::Reference < XUnoTunnel > xRef; + aElement >>= xRef; + if ( !(aElement >>= xRef) ) + throw IllegalArgumentException(THROW_WHERE, uno::Reference< uno::XInterface >(), 0 ); + + sal_Int64 nTest; + ZipPackageEntry *pEntry; + if ( ( nTest = xRef->getSomething ( ZipPackageFolder::getUnoTunnelId() ) ) != 0 ) + { + ZipPackageFolder *pFolder = reinterpret_cast < ZipPackageFolder * > ( nTest ); + pEntry = static_cast < ZipPackageEntry * > ( pFolder ); + } + else if ( ( nTest = xRef->getSomething ( ZipPackageStream::getUnoTunnelId() ) ) != 0 ) + { + ZipPackageStream *pStream = reinterpret_cast < ZipPackageStream * > ( nTest ); + pEntry = static_cast < ZipPackageEntry * > ( pStream ); + } + else + throw IllegalArgumentException(THROW_WHERE, uno::Reference< uno::XInterface >(), 0 ); + + if (pEntry->getName() != aName ) + pEntry->setName (aName); + doInsertByName ( pEntry, true ); +} + +void SAL_CALL ZipPackageFolder::removeByName( const OUString& Name ) +{ + ContentHash::iterator aIter = maContents.find ( Name ); + if ( aIter == maContents.end() ) + throw NoSuchElementException(THROW_WHERE ); + maContents.erase( aIter ); +} + // XEnumerationAccess +uno::Reference< XEnumeration > SAL_CALL ZipPackageFolder::createEnumeration( ) +{ + return uno::Reference < XEnumeration> (new ZipPackageFolderEnumeration(maContents)); +} + // XElementAccess +uno::Type SAL_CALL ZipPackageFolder::getElementType( ) +{ + return cppu::UnoType<XUnoTunnel>::get(); +} +sal_Bool SAL_CALL ZipPackageFolder::hasElements( ) +{ + return !maContents.empty(); +} + // XNameAccess +ZipContentInfo& ZipPackageFolder::doGetByName( const OUString& aName ) +{ + ContentHash::iterator aIter = maContents.find ( aName ); + if ( aIter == maContents.end()) + throw NoSuchElementException(THROW_WHERE ); + return *aIter->second; +} + +uno::Any SAL_CALL ZipPackageFolder::getByName( const OUString& aName ) +{ + return uno::makeAny ( doGetByName ( aName ).xTunnel ); +} +uno::Sequence< OUString > SAL_CALL ZipPackageFolder::getElementNames( ) +{ + return comphelper::mapKeysToSequence(maContents); +} +sal_Bool SAL_CALL ZipPackageFolder::hasByName( const OUString& aName ) +{ + return maContents.find ( aName ) != maContents.end (); +} + // XNameReplace +void SAL_CALL ZipPackageFolder::replaceByName( const OUString& aName, const uno::Any& aElement ) +{ + if ( !hasByName( aName ) ) + throw NoSuchElementException(THROW_WHERE ); + + removeByName( aName ); + insertByName(aName, aElement); +} + +bool ZipPackageFolder::saveChild( + const OUString &rPath, + std::vector < uno::Sequence < PropertyValue > > &rManList, + ZipOutputStream & rZipOut, + const uno::Sequence < sal_Int8 >& rEncryptionKey, + sal_Int32 nPBKDF2IterationCount, + const rtlRandomPool &rRandomPool) +{ + const OUString sMediaTypeProperty ("MediaType"); + const OUString sVersionProperty ("Version"); + const OUString sFullPathProperty ("FullPath"); + + uno::Sequence < PropertyValue > aPropSet (PKG_SIZE_NOENCR_MNFST); + OUString sTempName = rPath + "/"; + + if ( !GetMediaType().isEmpty() ) + { + aPropSet[PKG_MNFST_MEDIATYPE].Name = sMediaTypeProperty; + aPropSet[PKG_MNFST_MEDIATYPE].Value <<= GetMediaType(); + aPropSet[PKG_MNFST_VERSION].Name = sVersionProperty; + aPropSet[PKG_MNFST_VERSION].Value <<= GetVersion(); + aPropSet[PKG_MNFST_FULLPATH].Name = sFullPathProperty; + aPropSet[PKG_MNFST_FULLPATH].Value <<= sTempName; + } + else + aPropSet.realloc( 0 ); + + saveContents( sTempName, rManList, rZipOut, rEncryptionKey, nPBKDF2IterationCount, rRandomPool); + + // folder can have a mediatype only in package format + if ( aPropSet.hasElements() && ( m_nFormat == embed::StorageFormats::PACKAGE ) ) + rManList.push_back( aPropSet ); + + return true; +} + +void ZipPackageFolder::saveContents( + const OUString &rPath, + std::vector < uno::Sequence < PropertyValue > > &rManList, + ZipOutputStream & rZipOut, + const uno::Sequence < sal_Int8 >& rEncryptionKey, + sal_Int32 nPBKDF2IterationCount, + const rtlRandomPool &rRandomPool ) const +{ + if ( maContents.empty() && !rPath.isEmpty() && m_nFormat != embed::StorageFormats::OFOPXML ) + { + // it is an empty subfolder, use workaround to store it + ZipEntry* pTempEntry = new ZipEntry(aEntry); + pTempEntry->nPathLen = static_cast<sal_Int16>( OUStringToOString( rPath, RTL_TEXTENCODING_UTF8 ).getLength() ); + pTempEntry->nExtraLen = -1; + pTempEntry->sPath = rPath; + + try + { + ZipOutputStream::setEntry(pTempEntry); + rZipOut.writeLOC(pTempEntry); + rZipOut.rawCloseEntry(); + } + catch ( ZipException& ) + { + throw uno::RuntimeException( THROW_WHERE ); + } + catch ( IOException& ) + { + throw uno::RuntimeException( THROW_WHERE ); + } + } + + bool bMimeTypeStreamStored = false; + OUString aMimeTypeStreamName("mimetype"); + if ( m_nFormat == embed::StorageFormats::ZIP && rPath.isEmpty() ) + { + // let the "mimetype" stream in root folder be stored as the first stream if it is zip format + ContentHash::const_iterator aIter = maContents.find ( aMimeTypeStreamName ); + if ( aIter != maContents.end() && !(*aIter).second->bFolder ) + { + bMimeTypeStreamStored = true; + if( !aIter->second->pStream->saveChild( + rPath + aIter->first, rManList, rZipOut, rEncryptionKey, nPBKDF2IterationCount, rRandomPool )) + { + throw uno::RuntimeException( THROW_WHERE ); + } + } + } + + for (const auto& [rShortName, rxInfo] : maContents) + { + const ZipContentInfo &rInfo = *rxInfo; + + if ( !bMimeTypeStreamStored || rShortName != aMimeTypeStreamName ) + { + if (rInfo.bFolder) + { + if( !rInfo.pFolder->saveChild( + rPath + rShortName, rManList, rZipOut, rEncryptionKey, nPBKDF2IterationCount, rRandomPool )) + { + throw uno::RuntimeException( THROW_WHERE ); + } + } + else + { + if( !rInfo.pStream->saveChild( + rPath + rShortName, rManList, rZipOut, rEncryptionKey, nPBKDF2IterationCount, rRandomPool )) + { + throw uno::RuntimeException( THROW_WHERE ); + } + } + } + } +} + +sal_Int64 SAL_CALL ZipPackageFolder::getSomething( const uno::Sequence< sal_Int8 >& aIdentifier ) +{ + sal_Int64 nMe = 0; + if ( isUnoTunnelId<ZipPackageFolder>(aIdentifier) ) + nMe = reinterpret_cast < sal_Int64 > ( this ); + return nMe; +} +void SAL_CALL ZipPackageFolder::setPropertyValue( const OUString& aPropertyName, const uno::Any& aValue ) +{ + if ( aPropertyName == "MediaType" ) + { + // TODO/LATER: activate when zip ucp is ready + // if ( m_nFormat != embed::StorageFormats::PACKAGE ) + // throw UnknownPropertyException(THROW_WHERE ); + + aValue >>= msMediaType; + } + else if ( aPropertyName == "Version" ) + aValue >>= m_sVersion; + else if ( aPropertyName == "Size" ) + aValue >>= aEntry.nSize; + else + throw UnknownPropertyException(aPropertyName); +} +uno::Any SAL_CALL ZipPackageFolder::getPropertyValue( const OUString& PropertyName ) +{ + if ( PropertyName == "MediaType" ) + { + // TODO/LATER: activate when zip ucp is ready + // if ( m_nFormat != embed::StorageFormats::PACKAGE ) + // throw UnknownPropertyException(THROW_WHERE ); + + return uno::makeAny ( msMediaType ); + } + else if ( PropertyName == "Version" ) + return uno::makeAny( m_sVersion ); + else if ( PropertyName == "Size" ) + return uno::makeAny ( aEntry.nSize ); + else + throw UnknownPropertyException(PropertyName); +} + +void ZipPackageFolder::doInsertByName ( ZipPackageEntry *pEntry, bool bSetParent ) +{ + if ( pEntry->IsFolder() ) + maContents[pEntry->getName()] = std::make_unique<ZipContentInfo>(static_cast<ZipPackageFolder*>(pEntry)); + else + maContents[pEntry->getName()] = std::make_unique<ZipContentInfo>(static_cast<ZipPackageStream*>(pEntry)); + if ( bSetParent ) + pEntry->setParent ( *this ); +} + +OUString ZipPackageFolder::getImplementationName() +{ + return "ZipPackageFolder"; +} + +uno::Sequence< OUString > ZipPackageFolder::getSupportedServiceNames() +{ + return { "com.sun.star.packages.PackageFolder" }; +} + +sal_Bool SAL_CALL ZipPackageFolder::supportsService( OUString const & rServiceName ) +{ + return cppu::supportsService(this, rServiceName); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |