| /************************************************************** |
| * |
| * 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 <stdio.h> |
| |
| #include <com/sun/star/ucb/XSimpleFileAccess.hpp> |
| #include <com/sun/star/ucb/XCommandEnvironment.hpp> |
| #include <com/sun/star/ucb/InsertCommandArgument.hpp> |
| #include <com/sun/star/ucb/NameClashException.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 <tools/urlobj.hxx> |
| #include <unotools/bootstrap.hxx> |
| |
| #include <ucbhelper/content.hxx> |
| |
| #include <unotools/useroptions.hxx> |
| |
| #include <svl/documentlockfile.hxx> |
| |
| using namespace ::com::sun::star; |
| |
| namespace svt { |
| |
| sal_Bool DocumentLockFile::m_bAllowInteraction = sal_True; |
| |
| // ---------------------------------------------------------------------- |
| DocumentLockFile::DocumentLockFile( const ::rtl::OUString& aOrigURL, const uno::Reference< lang::XMultiServiceFactory >& xFactory ) |
| : LockFileCommon( aOrigURL, xFactory, ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( ".~lock." ) ) ) |
| { |
| } |
| |
| // ---------------------------------------------------------------------- |
| DocumentLockFile::~DocumentLockFile() |
| { |
| } |
| |
| // ---------------------------------------------------------------------- |
| void DocumentLockFile::WriteEntryToStream( uno::Sequence< ::rtl::OUString > aEntry, uno::Reference< io::XOutputStream > xOutput ) |
| { |
| ::osl::MutexGuard aGuard( m_aMutex ); |
| |
| ::rtl::OUStringBuffer aBuffer; |
| |
| for ( sal_Int32 nEntryInd = 0; nEntryInd < aEntry.getLength(); nEntryInd++ ) |
| { |
| aBuffer.append( EscapeCharacters( aEntry[nEntryInd] ) ); |
| if ( nEntryInd < aEntry.getLength() - 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() ); |
| xOutput->writeBytes( aData ); |
| } |
| |
| // ---------------------------------------------------------------------- |
| sal_Bool DocumentLockFile::CreateOwnLockFile() |
| { |
| ::osl::MutexGuard aGuard( m_aMutex ); |
| |
| try |
| { |
| uno::Reference< io::XStream > xTempFile( |
| m_xFactory->createInstance( ::rtl::OUString::createFromAscii( "com.sun.star.io.TempFile" ) ), |
| uno::UNO_QUERY_THROW ); |
| uno::Reference< io::XSeekable > xSeekable( xTempFile, uno::UNO_QUERY_THROW ); |
| |
| uno::Reference< io::XInputStream > xInput = xTempFile->getInputStream(); |
| uno::Reference< io::XOutputStream > xOutput = xTempFile->getOutputStream(); |
| |
| if ( !xInput.is() || !xOutput.is() ) |
| throw uno::RuntimeException(); |
| |
| uno::Sequence< ::rtl::OUString > aNewEntry = GenerateOwnEntry(); |
| WriteEntryToStream( aNewEntry, xOutput ); |
| xOutput->closeOutput(); |
| |
| xSeekable->seek( 0 ); |
| |
| uno::Reference < ::com::sun::star::ucb::XCommandEnvironment > xEnv; |
| ::ucbhelper::Content aTargetContent( m_aURL, xEnv ); |
| |
| ucb::InsertCommandArgument aInsertArg; |
| aInsertArg.Data = xInput; |
| aInsertArg.ReplaceExisting = sal_False; |
| uno::Any aCmdArg; |
| aCmdArg <<= aInsertArg; |
| aTargetContent.executeCommand( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "insert" ) ), aCmdArg ); |
| |
| // try to let the file be hidden if possible |
| try { |
| aTargetContent.setPropertyValue( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "IsHidden" ) ), uno::makeAny( sal_True ) ); |
| } catch( uno::Exception& ) {} |
| } |
| catch( ucb::NameClashException& ) |
| { |
| return sal_False; |
| } |
| |
| return sal_True; |
| } |
| |
| // ---------------------------------------------------------------------- |
| uno::Sequence< ::rtl::OUString > DocumentLockFile::GetLockData() |
| { |
| ::osl::MutexGuard aGuard( m_aMutex ); |
| |
| uno::Reference< io::XInputStream > xInput = OpenStream(); |
| if ( !xInput.is() ) |
| throw uno::RuntimeException(); |
| |
| const sal_Int32 nBufLen = 32000; |
| uno::Sequence< sal_Int8 > aBuffer( nBufLen ); |
| |
| sal_Int32 nRead = 0; |
| |
| nRead = xInput->readBytes( aBuffer, nBufLen ); |
| xInput->closeInput(); |
| |
| if ( nRead == nBufLen ) |
| throw io::WrongFormatException(); |
| |
| sal_Int32 nCurPos = 0; |
| return ParseEntry( aBuffer, nCurPos ); |
| } |
| |
| // ---------------------------------------------------------------------- |
| uno::Reference< io::XInputStream > DocumentLockFile::OpenStream() |
| { |
| ::osl::MutexGuard aGuard( m_aMutex ); |
| |
| 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 ); |
| |
| // the file can be opened readonly, no locking will be done |
| return xSimpleFileAccess->openFileRead( m_aURL ); |
| } |
| |
| // ---------------------------------------------------------------------- |
| sal_Bool DocumentLockFile::OverwriteOwnLockFile() |
| { |
| // allows to overwrite the lock file with the current data |
| try |
| { |
| uno::Reference < ::com::sun::star::ucb::XCommandEnvironment > xEnv; |
| ::ucbhelper::Content aTargetContent( m_aURL, xEnv ); |
| |
| uno::Sequence< ::rtl::OUString > aNewEntry = GenerateOwnEntry(); |
| |
| uno::Reference< io::XStream > xStream = aTargetContent.openWriteableStreamNoLock(); |
| uno::Reference< io::XOutputStream > xOutput = xStream->getOutputStream(); |
| uno::Reference< io::XTruncate > xTruncate( xOutput, uno::UNO_QUERY_THROW ); |
| |
| xTruncate->truncate(); |
| WriteEntryToStream( aNewEntry, xOutput ); |
| xOutput->closeOutput(); |
| } |
| catch( uno::Exception& ) |
| { |
| return sal_False; |
| } |
| |
| return sal_True; |
| } |
| |
| // ---------------------------------------------------------------------- |
| void DocumentLockFile::RemoveFile() |
| { |
| ::osl::MutexGuard aGuard( m_aMutex ); |
| |
| // TODO/LATER: the removing is not atomar, is it possible in general to make it atomar? |
| uno::Sequence< ::rtl::OUString > aNewEntry = GenerateOwnEntry(); |
| uno::Sequence< ::rtl::OUString > aFileData = GetLockData(); |
| |
| if ( aFileData.getLength() < LOCKFILE_ENTRYSIZE ) |
| throw io::WrongFormatException(); |
| |
| if ( !aFileData[LOCKFILE_SYSUSERNAME_ID].equals( aNewEntry[LOCKFILE_SYSUSERNAME_ID] ) |
| || !aFileData[LOCKFILE_LOCALHOST_ID].equals( aNewEntry[LOCKFILE_LOCALHOST_ID] ) |
| || !aFileData[LOCKFILE_USERURL_ID].equals( aNewEntry[LOCKFILE_USERURL_ID] ) ) |
| throw io::IOException(); // not the owner, access denied |
| |
| 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 |
| |