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Diffstat (limited to 'svl/source/misc/sharecontrolfile.cxx')
| -rw-r--r-- | svl/source/misc/sharecontrolfile.cxx | 376 |
1 files changed, 376 insertions, 0 deletions
diff --git a/svl/source/misc/sharecontrolfile.cxx b/svl/source/misc/sharecontrolfile.cxx new file mode 100644 index 000000000000..9249fa3f33de --- /dev/null +++ b/svl/source/misc/sharecontrolfile.cxx @@ -0,0 +1,376 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2008 by Sun Microsystems, Inc. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * $RCSfile: sharecontrolfile.cxx,v $ + * $Revision: 1.6.82.1 $ + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_svl.hxx" + +#include <stdio.h> + +#include <com/sun/star/ucb/XSimpleFileAccess.hpp> +#include <com/sun/star/ucb/XCommandEnvironment.hpp> +#include <com/sun/star/ucb/XContent.hpp> +#include <com/sun/star/ucb/InsertCommandArgument.hpp> +#include <com/sun/star/ucb/InteractiveIOException.hpp> +#include <com/sun/star/io/WrongFormatException.hpp> + +#include <osl/time.h> +#include <osl/security.hxx> +#include <osl/socket.hxx> + +#include <rtl/string.hxx> +#include <rtl/ustring.hxx> +#include <rtl/strbuf.hxx> +#include <rtl/ustrbuf.hxx> + +#include <comphelper/processfactory.hxx> +#include <ucbhelper/content.hxx> + +#include <tools/urlobj.hxx> +#include <tools/stream.hxx> +#include <unotools/bootstrap.hxx> +#include <unotools/streamwrap.hxx> + +#include <unotools/useroptions.hxx> + +#include <svl/sharecontrolfile.hxx> + +using namespace ::com::sun::star; + +namespace svt { + +// ---------------------------------------------------------------------- +ShareControlFile::ShareControlFile( const ::rtl::OUString& aOrigURL, const uno::Reference< lang::XMultiServiceFactory >& xFactory ) +: LockFileCommon( aOrigURL, xFactory, ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( ".~sharing." ) ) ) +{ + OpenStream(); + + if ( !IsValid() ) + throw io::NotConnectedException(); +} + +// ---------------------------------------------------------------------- +ShareControlFile::~ShareControlFile() +{ + try + { + Close(); + } + catch( uno::Exception& ) + {} +} + +// ---------------------------------------------------------------------- +void ShareControlFile::OpenStream() +{ + // if it is called outside of constructor the mutex must be locked already + + if ( !m_xStream.is() && m_aURL.getLength() ) + { + uno::Reference< ucb::XCommandEnvironment > xDummyEnv; + ::ucbhelper::Content aContent = ::ucbhelper::Content( m_aURL, xDummyEnv ); + + uno::Reference< ucb::XContentIdentifier > xContId( aContent.get().is() ? aContent.get()->getIdentifier() : 0 ); + if ( !xContId.is() || !xContId->getContentProviderScheme().equals( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "file" ) ) ) ) + throw io::IOException(); // the implementation supports only local files for now + + uno::Reference< io::XStream > xStream; + + // Currently the locking of the original document is intended to be used. + // That means that the shared file should be accessed only when the original document is locked and only by user who has locked the document. + // TODO/LATER: should the own file locking be used? + + try + { + xStream = aContent.openWriteableStreamNoLock(); + } + catch ( ucb::InteractiveIOException const & e ) + { + if ( e.Code == ucb::IOErrorCode_NOT_EXISTING ) + { + // Create file... + SvMemoryStream aStream(0,0); + uno::Reference< io::XInputStream > xInput( new ::utl::OInputStreamWrapper( aStream ) ); + ucb::InsertCommandArgument aInsertArg; + aInsertArg.Data = xInput; + aInsertArg.ReplaceExisting = sal_False; + aContent.executeCommand( rtl::OUString::createFromAscii( "insert" ), uno::makeAny( aInsertArg ) ); + + // try to let the file be hidden if possible + try { + aContent.setPropertyValue( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "IsHidden" ) ), uno::makeAny( sal_True ) ); + } catch( uno::Exception& ) {} + + // Try to open one more time + xStream = aContent.openWriteableStreamNoLock(); + } + else + throw; + } + + m_xSeekable.set( xStream, uno::UNO_QUERY_THROW ); + m_xInputStream.set( xStream->getInputStream(), uno::UNO_QUERY_THROW ); + m_xOutputStream.set( xStream->getOutputStream(), uno::UNO_QUERY_THROW ); + m_xTruncate.set( m_xOutputStream, uno::UNO_QUERY_THROW ); + m_xStream = xStream; + } +} + +// ---------------------------------------------------------------------- +void ShareControlFile::Close() +{ + // if it is called outside of destructor the mutex must be locked + + if ( m_xStream.is() ) + { + try + { + if ( m_xInputStream.is() ) + m_xInputStream->closeInput(); + if ( m_xOutputStream.is() ) + m_xOutputStream->closeOutput(); + } + catch( uno::Exception& ) + {} + + m_xStream = uno::Reference< io::XStream >(); + m_xInputStream = uno::Reference< io::XInputStream >(); + m_xOutputStream = uno::Reference< io::XOutputStream >(); + m_xSeekable = uno::Reference< io::XSeekable >(); + m_xTruncate = uno::Reference< io::XTruncate >(); + m_aUsersData.realloc( 0 ); + } +} + +// ---------------------------------------------------------------------- +uno::Sequence< uno::Sequence< ::rtl::OUString > > ShareControlFile::GetUsersData() +{ + ::osl::MutexGuard aGuard( m_aMutex ); + + if ( !IsValid() ) + throw io::NotConnectedException(); + + if ( !m_aUsersData.getLength() ) + { + sal_Int64 nLength = m_xSeekable->getLength(); + if ( nLength > SAL_MAX_INT32 ) + throw uno::RuntimeException(); + + uno::Sequence< sal_Int8 > aBuffer( (sal_Int32)nLength ); + m_xSeekable->seek( 0 ); + + sal_Int32 nRead = m_xInputStream->readBytes( aBuffer, (sal_Int32)nLength ); + nLength -= nRead; + while ( nLength > 0 ) + { + uno::Sequence< sal_Int8 > aTmpBuf( (sal_Int32)nLength ); + nRead = m_xInputStream->readBytes( aTmpBuf, (sal_Int32)nLength ); + if ( nRead > nLength ) + throw uno::RuntimeException(); + + for ( sal_Int32 nInd = 0; nInd < nRead; nInd++ ) + aBuffer[aBuffer.getLength() - (sal_Int32)nLength + nInd] = aTmpBuf[nInd]; + nLength -= nRead; + } + + m_aUsersData = ParseList( aBuffer ); + } + + return m_aUsersData; +} + +// ---------------------------------------------------------------------- +void ShareControlFile::SetUsersDataAndStore( const uno::Sequence< uno::Sequence< ::rtl::OUString > >& aUsersData ) +{ + ::osl::MutexGuard aGuard( m_aMutex ); + + if ( !IsValid() ) + throw io::NotConnectedException(); + + if ( !m_xTruncate.is() || !m_xOutputStream.is() || !m_xSeekable.is() ) + throw uno::RuntimeException(); + + m_xTruncate->truncate(); + m_xSeekable->seek( 0 ); + + ::rtl::OUStringBuffer aBuffer; + for ( sal_Int32 nInd = 0; nInd < aUsersData.getLength(); nInd++ ) + { + if ( aUsersData[nInd].getLength() != SHARED_ENTRYSIZE ) + throw lang::IllegalArgumentException(); + + for ( sal_Int32 nEntryInd = 0; nEntryInd < SHARED_ENTRYSIZE; nEntryInd++ ) + { + aBuffer.append( EscapeCharacters( aUsersData[nInd][nEntryInd] ) ); + if ( nEntryInd < SHARED_ENTRYSIZE - 1 ) + aBuffer.append( (sal_Unicode)',' ); + else + aBuffer.append( (sal_Unicode)';' ); + } + } + + ::rtl::OString aStringData( ::rtl::OUStringToOString( aBuffer.makeStringAndClear(), RTL_TEXTENCODING_UTF8 ) ); + uno::Sequence< sal_Int8 > aData( (sal_Int8*)aStringData.getStr(), aStringData.getLength() ); + m_xOutputStream->writeBytes( aData ); + m_aUsersData = aUsersData; +} + +// ---------------------------------------------------------------------- +uno::Sequence< ::rtl::OUString > ShareControlFile::InsertOwnEntry() +{ + ::osl::MutexGuard aGuard( m_aMutex ); + + if ( !IsValid() ) + throw io::NotConnectedException(); + + GetUsersData(); + uno::Sequence< ::uno::Sequence< ::rtl::OUString > > aNewData( m_aUsersData.getLength() + 1 ); + uno::Sequence< ::rtl::OUString > aNewEntry = GenerateOwnEntry(); + + sal_Bool bExists = sal_False; + sal_Int32 nNewInd = 0; + for ( sal_Int32 nInd = 0; nInd < m_aUsersData.getLength(); nInd++ ) + { + if ( m_aUsersData[nInd].getLength() == SHARED_ENTRYSIZE ) + { + if ( m_aUsersData[nInd][SHARED_LOCALHOST_ID] == aNewEntry[SHARED_LOCALHOST_ID] + && m_aUsersData[nInd][SHARED_SYSUSERNAME_ID] == aNewEntry[SHARED_SYSUSERNAME_ID] + && m_aUsersData[nInd][SHARED_USERURL_ID] == aNewEntry[SHARED_USERURL_ID] ) + { + if ( !bExists ) + { + aNewData[nNewInd] = aNewEntry; + bExists = sal_True; + } + } + else + { + aNewData[nNewInd] = m_aUsersData[nInd]; + } + + nNewInd++; + } + } + + if ( !bExists ) + aNewData[nNewInd++] = aNewEntry; + + aNewData.realloc( nNewInd ); + SetUsersDataAndStore( aNewData ); + + return aNewEntry; +} + +// ---------------------------------------------------------------------- +bool ShareControlFile::HasOwnEntry() +{ + ::osl::MutexGuard aGuard( m_aMutex ); + + if ( !IsValid() ) + { + throw io::NotConnectedException(); + } + + GetUsersData(); + uno::Sequence< ::rtl::OUString > aEntry = GenerateOwnEntry(); + + for ( sal_Int32 nInd = 0; nInd < m_aUsersData.getLength(); ++nInd ) + { + if ( m_aUsersData[nInd].getLength() == SHARED_ENTRYSIZE && + m_aUsersData[nInd][SHARED_LOCALHOST_ID] == aEntry[SHARED_LOCALHOST_ID] && + m_aUsersData[nInd][SHARED_SYSUSERNAME_ID] == aEntry[SHARED_SYSUSERNAME_ID] && + m_aUsersData[nInd][SHARED_USERURL_ID] == aEntry[SHARED_USERURL_ID] ) + { + return true; + } + } + + return false; +} + +// ---------------------------------------------------------------------- +void ShareControlFile::RemoveEntry( const uno::Sequence< ::rtl::OUString >& aArgEntry ) +{ + ::osl::MutexGuard aGuard( m_aMutex ); + + if ( !IsValid() ) + throw io::NotConnectedException(); + + GetUsersData(); + + uno::Sequence< ::rtl::OUString > aEntry = aArgEntry; + if ( aEntry.getLength() != SHARED_ENTRYSIZE ) + aEntry = GenerateOwnEntry(); + + uno::Sequence< ::uno::Sequence< ::rtl::OUString > > aNewData( m_aUsersData.getLength() + 1 ); + + sal_Int32 nNewInd = 0; + for ( sal_Int32 nInd = 0; nInd < m_aUsersData.getLength(); nInd++ ) + { + if ( m_aUsersData[nInd].getLength() == SHARED_ENTRYSIZE ) + { + if ( m_aUsersData[nInd][SHARED_LOCALHOST_ID] != aEntry[SHARED_LOCALHOST_ID] + || m_aUsersData[nInd][SHARED_SYSUSERNAME_ID] != aEntry[SHARED_SYSUSERNAME_ID] + || m_aUsersData[nInd][SHARED_USERURL_ID] != aEntry[SHARED_USERURL_ID] ) + { + aNewData[nNewInd] = m_aUsersData[nInd]; + nNewInd++; + } + } + } + + aNewData.realloc( nNewInd ); + SetUsersDataAndStore( aNewData ); + + if ( !nNewInd ) + { + // try to remove the file if it is empty + RemoveFile(); + } +} + +// ---------------------------------------------------------------------- +void ShareControlFile::RemoveFile() +{ + ::osl::MutexGuard aGuard( m_aMutex ); + + if ( !IsValid() ) + throw io::NotConnectedException(); + + Close(); + + uno::Reference< lang::XMultiServiceFactory > xFactory = ::comphelper::getProcessServiceFactory(); + uno::Reference< ::com::sun::star::ucb::XSimpleFileAccess > xSimpleFileAccess( + xFactory->createInstance( ::rtl::OUString::createFromAscii("com.sun.star.ucb.SimpleFileAccess") ), + uno::UNO_QUERY_THROW ); + xSimpleFileAccess->kill( m_aURL ); +} + +} // namespace svt + |