375 lines
12 KiB
C++
375 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_svl.hxx"
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#include <stdio.h>
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#include <com/sun/star/ucb/XSimpleFileAccess.hpp>
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#include <com/sun/star/ucb/XCommandEnvironment.hpp>
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#include <com/sun/star/ucb/XContent.hpp>
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#include <com/sun/star/ucb/InsertCommandArgument.hpp>
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#include <com/sun/star/ucb/InteractiveIOException.hpp>
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#include <com/sun/star/io/WrongFormatException.hpp>
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#include <osl/time.h>
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#include <osl/security.hxx>
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#include <osl/socket.hxx>
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#include <rtl/string.hxx>
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#include <rtl/ustring.hxx>
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#include <rtl/strbuf.hxx>
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#include <rtl/ustrbuf.hxx>
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#include <comphelper/processfactory.hxx>
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#include <ucbhelper/content.hxx>
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#include <tools/urlobj.hxx>
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#include <tools/stream.hxx>
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#include <unotools/bootstrap.hxx>
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#include <unotools/streamwrap.hxx>
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#include <unotools/useroptions.hxx>
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#include <svl/sharecontrolfile.hxx>
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using namespace ::com::sun::star;
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namespace svt {
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// ----------------------------------------------------------------------
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ShareControlFile::ShareControlFile( const ::rtl::OUString& aOrigURL, const uno::Reference< lang::XMultiServiceFactory >& xFactory )
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: LockFileCommon( aOrigURL, xFactory, ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( ".~sharing." ) ) )
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{
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OpenStream();
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if ( !IsValid() )
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throw io::NotConnectedException();
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}
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// ----------------------------------------------------------------------
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ShareControlFile::~ShareControlFile()
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{
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try
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{
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Close();
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}
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catch( uno::Exception& )
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{}
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}
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// ----------------------------------------------------------------------
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void ShareControlFile::OpenStream()
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{
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// if it is called outside of constructor the mutex must be locked already
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if ( !m_xStream.is() && m_aURL.getLength() )
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{
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uno::Reference< ucb::XCommandEnvironment > xDummyEnv;
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::ucbhelper::Content aContent = ::ucbhelper::Content( m_aURL, xDummyEnv );
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uno::Reference< ucb::XContentIdentifier > xContId( aContent.get().is() ? aContent.get()->getIdentifier() : 0 );
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if ( !xContId.is() || !xContId->getContentProviderScheme().equals( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "file" ) ) ) )
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throw io::IOException(); // the implementation supports only local files for now
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uno::Reference< io::XStream > xStream;
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// Currently the locking of the original document is intended to be used.
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// 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.
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// TODO/LATER: should the own file locking be used?
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try
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{
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xStream = aContent.openWriteableStreamNoLock();
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}
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catch ( ucb::InteractiveIOException const & e )
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{
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if ( e.Code == ucb::IOErrorCode_NOT_EXISTING )
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{
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// Create file...
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SvMemoryStream aStream(0,0);
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uno::Reference< io::XInputStream > xInput( new ::utl::OInputStreamWrapper( aStream ) );
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ucb::InsertCommandArgument aInsertArg;
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aInsertArg.Data = xInput;
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aInsertArg.ReplaceExisting = sal_False;
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aContent.executeCommand( rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("insert")), uno::makeAny( aInsertArg ) );
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// try to let the file be hidden if possible
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try {
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aContent.setPropertyValue( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "IsHidden" ) ), uno::makeAny( sal_True ) );
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} catch( uno::Exception& ) {}
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// Try to open one more time
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xStream = aContent.openWriteableStreamNoLock();
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}
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else
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throw;
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}
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m_xSeekable.set( xStream, uno::UNO_QUERY_THROW );
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m_xInputStream.set( xStream->getInputStream(), uno::UNO_QUERY_THROW );
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m_xOutputStream.set( xStream->getOutputStream(), uno::UNO_QUERY_THROW );
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m_xTruncate.set( m_xOutputStream, uno::UNO_QUERY_THROW );
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m_xStream = xStream;
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}
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}
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// ----------------------------------------------------------------------
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void ShareControlFile::Close()
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{
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// if it is called outside of destructor the mutex must be locked
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if ( m_xStream.is() )
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{
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try
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{
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if ( m_xInputStream.is() )
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m_xInputStream->closeInput();
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if ( m_xOutputStream.is() )
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m_xOutputStream->closeOutput();
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}
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catch( uno::Exception& )
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{}
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m_xStream = uno::Reference< io::XStream >();
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m_xInputStream = uno::Reference< io::XInputStream >();
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m_xOutputStream = uno::Reference< io::XOutputStream >();
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m_xSeekable = uno::Reference< io::XSeekable >();
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m_xTruncate = uno::Reference< io::XTruncate >();
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m_aUsersData.realloc( 0 );
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}
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}
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// ----------------------------------------------------------------------
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uno::Sequence< uno::Sequence< ::rtl::OUString > > ShareControlFile::GetUsersData()
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if ( !IsValid() )
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throw io::NotConnectedException();
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if ( !m_aUsersData.getLength() )
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{
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sal_Int64 nLength = m_xSeekable->getLength();
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if ( nLength > SAL_MAX_INT32 )
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throw uno::RuntimeException();
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uno::Sequence< sal_Int8 > aBuffer( (sal_Int32)nLength );
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m_xSeekable->seek( 0 );
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sal_Int32 nRead = m_xInputStream->readBytes( aBuffer, (sal_Int32)nLength );
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nLength -= nRead;
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while ( nLength > 0 )
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{
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uno::Sequence< sal_Int8 > aTmpBuf( (sal_Int32)nLength );
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nRead = m_xInputStream->readBytes( aTmpBuf, (sal_Int32)nLength );
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if ( nRead > nLength )
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throw uno::RuntimeException();
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for ( sal_Int32 nInd = 0; nInd < nRead; nInd++ )
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aBuffer[aBuffer.getLength() - (sal_Int32)nLength + nInd] = aTmpBuf[nInd];
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nLength -= nRead;
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}
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m_aUsersData = ParseList( aBuffer );
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}
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return m_aUsersData;
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}
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// ----------------------------------------------------------------------
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void ShareControlFile::SetUsersDataAndStore( const uno::Sequence< uno::Sequence< ::rtl::OUString > >& aUsersData )
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if ( !IsValid() )
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throw io::NotConnectedException();
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if ( !m_xTruncate.is() || !m_xOutputStream.is() || !m_xSeekable.is() )
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throw uno::RuntimeException();
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m_xTruncate->truncate();
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m_xSeekable->seek( 0 );
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::rtl::OUStringBuffer aBuffer;
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for ( sal_Int32 nInd = 0; nInd < aUsersData.getLength(); nInd++ )
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{
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if ( aUsersData[nInd].getLength() != SHARED_ENTRYSIZE )
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throw lang::IllegalArgumentException();
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for ( sal_Int32 nEntryInd = 0; nEntryInd < SHARED_ENTRYSIZE; nEntryInd++ )
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{
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aBuffer.append( EscapeCharacters( aUsersData[nInd][nEntryInd] ) );
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if ( nEntryInd < SHARED_ENTRYSIZE - 1 )
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aBuffer.append( (sal_Unicode)',' );
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else
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aBuffer.append( (sal_Unicode)';' );
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}
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}
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::rtl::OString aStringData( ::rtl::OUStringToOString( aBuffer.makeStringAndClear(), RTL_TEXTENCODING_UTF8 ) );
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uno::Sequence< sal_Int8 > aData( (sal_Int8*)aStringData.getStr(), aStringData.getLength() );
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m_xOutputStream->writeBytes( aData );
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m_aUsersData = aUsersData;
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}
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// ----------------------------------------------------------------------
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uno::Sequence< ::rtl::OUString > ShareControlFile::InsertOwnEntry()
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if ( !IsValid() )
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throw io::NotConnectedException();
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GetUsersData();
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uno::Sequence< ::uno::Sequence< ::rtl::OUString > > aNewData( m_aUsersData.getLength() + 1 );
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uno::Sequence< ::rtl::OUString > aNewEntry = GenerateOwnEntry();
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sal_Bool bExists = sal_False;
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sal_Int32 nNewInd = 0;
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for ( sal_Int32 nInd = 0; nInd < m_aUsersData.getLength(); nInd++ )
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{
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if ( m_aUsersData[nInd].getLength() == SHARED_ENTRYSIZE )
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{
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if ( m_aUsersData[nInd][SHARED_LOCALHOST_ID] == aNewEntry[SHARED_LOCALHOST_ID]
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&& m_aUsersData[nInd][SHARED_SYSUSERNAME_ID] == aNewEntry[SHARED_SYSUSERNAME_ID]
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&& m_aUsersData[nInd][SHARED_USERURL_ID] == aNewEntry[SHARED_USERURL_ID] )
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{
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if ( !bExists )
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{
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aNewData[nNewInd] = aNewEntry;
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bExists = sal_True;
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}
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}
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else
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{
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aNewData[nNewInd] = m_aUsersData[nInd];
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}
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nNewInd++;
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}
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}
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if ( !bExists )
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aNewData[nNewInd++] = aNewEntry;
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aNewData.realloc( nNewInd );
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SetUsersDataAndStore( aNewData );
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return aNewEntry;
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}
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// ----------------------------------------------------------------------
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bool ShareControlFile::HasOwnEntry()
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if ( !IsValid() )
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{
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throw io::NotConnectedException();
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}
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GetUsersData();
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uno::Sequence< ::rtl::OUString > aEntry = GenerateOwnEntry();
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for ( sal_Int32 nInd = 0; nInd < m_aUsersData.getLength(); ++nInd )
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{
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if ( m_aUsersData[nInd].getLength() == SHARED_ENTRYSIZE &&
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m_aUsersData[nInd][SHARED_LOCALHOST_ID] == aEntry[SHARED_LOCALHOST_ID] &&
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m_aUsersData[nInd][SHARED_SYSUSERNAME_ID] == aEntry[SHARED_SYSUSERNAME_ID] &&
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m_aUsersData[nInd][SHARED_USERURL_ID] == aEntry[SHARED_USERURL_ID] )
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{
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return true;
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}
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}
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return false;
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}
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// ----------------------------------------------------------------------
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void ShareControlFile::RemoveEntry( const uno::Sequence< ::rtl::OUString >& aArgEntry )
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if ( !IsValid() )
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throw io::NotConnectedException();
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GetUsersData();
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uno::Sequence< ::rtl::OUString > aEntry = aArgEntry;
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if ( aEntry.getLength() != SHARED_ENTRYSIZE )
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aEntry = GenerateOwnEntry();
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uno::Sequence< ::uno::Sequence< ::rtl::OUString > > aNewData( m_aUsersData.getLength() + 1 );
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sal_Int32 nNewInd = 0;
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for ( sal_Int32 nInd = 0; nInd < m_aUsersData.getLength(); nInd++ )
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{
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if ( m_aUsersData[nInd].getLength() == SHARED_ENTRYSIZE )
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{
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if ( m_aUsersData[nInd][SHARED_LOCALHOST_ID] != aEntry[SHARED_LOCALHOST_ID]
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|| m_aUsersData[nInd][SHARED_SYSUSERNAME_ID] != aEntry[SHARED_SYSUSERNAME_ID]
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|| m_aUsersData[nInd][SHARED_USERURL_ID] != aEntry[SHARED_USERURL_ID] )
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{
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aNewData[nNewInd] = m_aUsersData[nInd];
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nNewInd++;
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}
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}
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}
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aNewData.realloc( nNewInd );
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SetUsersDataAndStore( aNewData );
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if ( !nNewInd )
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{
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// try to remove the file if it is empty
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RemoveFile();
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}
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}
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// ----------------------------------------------------------------------
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void ShareControlFile::RemoveFile()
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if ( !IsValid() )
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throw io::NotConnectedException();
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Close();
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uno::Reference< lang::XMultiServiceFactory > xFactory = ::comphelper::getProcessServiceFactory();
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uno::Reference< ::com::sun::star::ucb::XSimpleFileAccess > xSimpleFileAccess(
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xFactory->createInstance( ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.ucb.SimpleFileAccess")) ),
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uno::UNO_QUERY_THROW );
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xSimpleFileAccess->kill( m_aURL );
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}
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} // namespace svt
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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