/************************************************************** * * 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 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * *************************************************************/ // MARKER(update_precomp.py): autogen include statement, do not remove #include "precompiled_svl.hxx" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include 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