LCOV - code coverage report
Current view: top level - libreoffice/package/source/zippackage - zipfileaccess.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 42 209 20.1 %
Date: 2012-12-27 Functions: 8 21 38.1 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <com/sun/star/lang/DisposedException.hpp>
      21             : #include <com/sun/star/lang/IllegalArgumentException.hpp>
      22             : #include <com/sun/star/ucb/XCommandEnvironment.hpp>
      23             : #include <com/sun/star/io/XActiveDataSink.hpp>
      24             : #include <com/sun/star/io/XStream.hpp>
      25             : #include <com/sun/star/io/XSeekable.hpp>
      26             : #include <comphelper/processfactory.hxx>
      27             : #include <zipfileaccess.hxx>
      28             : #include <ZipEnumeration.hxx>
      29             : #include <ZipPackageSink.hxx>
      30             : #include <EncryptionData.hxx>
      31             : 
      32             : #include <ucbhelper/content.hxx>
      33             : #include <rtl/ref.hxx>
      34             : 
      35             : #include <memory>
      36             : 
      37             : 
      38             : using namespace ::com::sun::star;
      39             : 
      40             : // ----------------------------------------------------------------
      41          44 : OZipFileAccess::OZipFileAccess( const uno::Reference< uno::XComponentContext >& rxContext )
      42          44 : : m_aMutexHolder( new SotMutexHolder )
      43             : , m_xContext( rxContext )
      44             : , m_pZipFile( NULL )
      45             : , m_pListenersContainer( NULL )
      46          88 : , m_bDisposed( sal_False )
      47             : {
      48          44 :     if ( !rxContext.is() )
      49           0 :         throw uno::RuntimeException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
      50          44 : }
      51             : 
      52             : // ----------------------------------------------------------------
      53         132 : OZipFileAccess::~OZipFileAccess()
      54             : {
      55             :     {
      56          44 :         ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
      57          44 :         if ( !m_bDisposed )
      58             :         {
      59             :             try {
      60          44 :                 m_refCount++; // dispose will use refcounting so the further distruction must be avoided
      61          44 :                 dispose();
      62           0 :             } catch( uno::Exception& )
      63             :             {}
      64          44 :         }
      65             :     }
      66          88 : }
      67             : 
      68             : // ----------------------------------------------------------------
      69           0 : uno::Sequence< OUString > OZipFileAccess::GetPatternsFromString_Impl( const OUString& aString )
      70             : {
      71           0 :     if ( aString.isEmpty() )
      72           0 :         return uno::Sequence< OUString >();
      73             : 
      74           0 :     uno::Sequence< OUString > aPattern( 1 );
      75           0 :     sal_Int32 nInd = 0;
      76             : 
      77           0 :     const sal_Unicode* pString = aString.getStr();
      78           0 :     while( *pString )
      79             :     {
      80           0 :         if ( *pString == (sal_Unicode)'\\' )
      81             :         {
      82           0 :             pString++;
      83             : 
      84           0 :             if ( *pString == (sal_Unicode)'\\' )
      85             :             {
      86           0 :                 aPattern[nInd] += OUString::valueOf( (sal_Unicode)'\\' );
      87           0 :                 pString++;
      88             :             }
      89           0 :             else if ( *pString == (sal_Unicode)'*' )
      90             :             {
      91           0 :                 aPattern[nInd] += OUString::valueOf( (sal_Unicode)'*' );
      92           0 :                 pString++;
      93             :             }
      94             :             else
      95             :             {
      96             :                 OSL_FAIL( "The backslash is not guarded!\n" );
      97           0 :                 aPattern[nInd] += OUString::valueOf( (sal_Unicode)'\\' );
      98             :             }
      99             :         }
     100           0 :         else if ( *pString == (sal_Unicode)'*' )
     101             :         {
     102           0 :             aPattern.realloc( ( ++nInd ) + 1 );
     103           0 :             pString++;
     104             :         }
     105             :         else
     106             :         {
     107           0 :             aPattern[nInd] += OUString::valueOf( *pString );
     108           0 :             pString++;
     109             :         }
     110             :     }
     111             : 
     112           0 :     return aPattern;
     113             : }
     114             : 
     115             : // ----------------------------------------------------------------
     116           0 : sal_Bool OZipFileAccess::StringGoodForPattern_Impl( const OUString& aString,
     117             :                                                     const uno::Sequence< OUString >& aPattern )
     118             : {
     119           0 :     sal_Int32 nInd = aPattern.getLength() - 1;
     120           0 :     if ( nInd < 0 )
     121           0 :         return sal_False;
     122             : 
     123           0 :     if ( nInd == 0 )
     124             :     {
     125           0 :         if ( aPattern[0].isEmpty() )
     126           0 :             return sal_True;
     127             : 
     128           0 :         return aString.equals( aPattern[0] );
     129             :     }
     130             : 
     131           0 :     sal_Int32 nBeginInd = aPattern[0].getLength();
     132           0 :     sal_Int32 nEndInd = aString.getLength() - aPattern[nInd].getLength();
     133           0 :     if ( nEndInd >= nBeginInd
     134           0 :       && ( nEndInd == aString.getLength() || aString.copy( nEndInd ).equals( aPattern[nInd] ) )
     135           0 :       && ( nBeginInd == 0 || aString.copy( 0, nBeginInd ).equals( aPattern[0] ) ) )
     136             :     {
     137           0 :         for ( sal_Int32 nCurInd = aPattern.getLength() - 2; nCurInd > 0; nCurInd-- )
     138             :         {
     139           0 :             if ( aPattern[nCurInd].isEmpty() )
     140           0 :                 continue;
     141             : 
     142           0 :             if ( nEndInd == nBeginInd )
     143           0 :                 return sal_False;
     144             : 
     145             :             // check that search does not use nEndInd position
     146           0 :             sal_Int32 nLastInd = aString.lastIndexOf( aPattern[nCurInd], nEndInd - 1 );
     147             : 
     148           0 :             if ( nLastInd == -1 )
     149           0 :                 return sal_False;
     150             : 
     151           0 :             if ( nLastInd < nBeginInd )
     152           0 :                 return sal_False;
     153             : 
     154           0 :             nEndInd = nLastInd;
     155             :         }
     156             : 
     157           0 :         return sal_True;
     158             :     }
     159             : 
     160           0 :     return sal_False;
     161             : }
     162             : 
     163             : // XInitialization
     164             : // ----------------------------------------------------------------
     165          44 : void SAL_CALL OZipFileAccess::initialize( const uno::Sequence< uno::Any >& aArguments )
     166             :     throw ( uno::Exception,
     167             :             uno::RuntimeException )
     168             : {
     169          44 :     ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
     170             : 
     171          44 :     if ( m_bDisposed )
     172           0 :         throw lang::DisposedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     173             : 
     174          44 :     if ( m_pZipFile )
     175           0 :         throw uno::Exception(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() ); // initialization is allowed only one time
     176             : 
     177          44 :     if ( !aArguments.getLength() )
     178           0 :         throw lang::IllegalArgumentException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >(), 1 );
     179             : 
     180             :     OSL_ENSURE( aArguments.getLength() == 1, "Too many arguments are provided, only the first one will be used!\n" );
     181             : 
     182          44 :     OUString aParamURL;
     183          44 :     uno::Reference< io::XStream > xStream;
     184          44 :     uno::Reference< io::XSeekable > xSeekable;
     185             : 
     186          44 :     if ( ( aArguments[0] >>= aParamURL ) )
     187             :     {
     188             :         ::ucbhelper::Content aContent(
     189             :             aParamURL,
     190             :             uno::Reference< ::com::sun::star::ucb::XCommandEnvironment >(),
     191          44 :             m_xContext );
     192          44 :         uno::Reference < io::XActiveDataSink > xSink = new ZipPackageSink;
     193          44 :         if ( aContent.openStream ( xSink ) )
     194             :         {
     195           0 :             m_xContentStream = xSink->getInputStream();
     196           0 :             xSeekable = uno::Reference< io::XSeekable >( m_xContentStream, uno::UNO_QUERY );
     197          44 :         }
     198             :     }
     199           0 :     else if ( (aArguments[0] >>= xStream ) )
     200             :     {
     201             :         // a writable stream can implement both XStream & XInputStream
     202           0 :         m_xContentStream = xStream->getInputStream();
     203           0 :         xSeekable = uno::Reference< io::XSeekable >( xStream, uno::UNO_QUERY );
     204             :     }
     205           0 :     else if ( !( aArguments[0] >>= m_xContentStream ) )
     206             :     {
     207           0 :         xSeekable = uno::Reference< io::XSeekable >( m_xContentStream, uno::UNO_QUERY );
     208             :     }
     209             :     else
     210           0 :         throw lang::IllegalArgumentException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >(), 1 );
     211             : 
     212           0 :     if ( !m_xContentStream.is() )
     213           0 :         throw io::IOException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     214             : 
     215           0 :     if ( !xSeekable.is() )
     216             :     {
     217             :         // TODO: after fwkbugfix02 is integrated a helper class can be used to make the stream seekable
     218           0 :         throw io::IOException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     219             :     }
     220             : 
     221             :     // TODO: in case xSeekable is implemented on separated XStream implementation a wrapper is required
     222             :     m_pZipFile = new ZipFile(
     223             :                 m_xContentStream,
     224             :                 m_xContext,
     225           0 :                 sal_True );
     226           0 : }
     227             : 
     228             : // XNameAccess
     229             : // ----------------------------------------------------------------
     230           0 : uno::Any SAL_CALL OZipFileAccess::getByName( const OUString& aName )
     231             :     throw ( container::NoSuchElementException,
     232             :             lang::WrappedTargetException,
     233             :             uno::RuntimeException )
     234             : {
     235           0 :     ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
     236             : 
     237           0 :     if ( m_bDisposed )
     238           0 :         throw lang::DisposedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     239             : 
     240           0 :     if ( !m_pZipFile )
     241           0 :         throw io::NotConnectedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     242             : 
     243           0 :     EntryHash::iterator aIter = m_pZipFile->GetEntryHash().find( aName );
     244           0 :     if ( aIter == m_pZipFile->GetEntryHash().end() )
     245           0 :         throw container::NoSuchElementException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     246             : 
     247           0 :     uno::Reference< io::XInputStream > xEntryStream( m_pZipFile->getDataStream( (*aIter).second,
     248             :                                                                                 ::rtl::Reference< EncryptionData >(),
     249             :                                                                                 sal_False,
     250           0 :                                                                                 m_aMutexHolder ) );
     251             : 
     252           0 :     if ( !xEntryStream.is() )
     253           0 :         throw uno::RuntimeException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     254             : 
     255           0 :     return uno::makeAny ( xEntryStream );
     256             : }
     257             : 
     258             : // ----------------------------------------------------------------
     259           0 : uno::Sequence< OUString > SAL_CALL OZipFileAccess::getElementNames()
     260             :     throw ( uno::RuntimeException )
     261             : {
     262           0 :     ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
     263             : 
     264           0 :     if ( m_bDisposed )
     265           0 :         throw lang::DisposedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     266             : 
     267           0 :     if ( !m_pZipFile )
     268           0 :         throw io::NotConnectedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     269             : 
     270           0 :     uno::Sequence< OUString > aNames( m_pZipFile->GetEntryHash().size() );
     271           0 :     sal_Int32 nLen = 0;
     272             : 
     273           0 :     for ( EntryHash::iterator aIter = m_pZipFile->GetEntryHash().begin(); aIter != m_pZipFile->GetEntryHash().end(); ++aIter )
     274             :     {
     275           0 :         if ( aNames.getLength() < ++nLen )
     276             :         {
     277             :             OSL_FAIL( "The size must be the same!\n" );
     278           0 :             aNames.realloc( nLen );
     279             :         }
     280             : 
     281           0 :         aNames[nLen-1] = (*aIter).second.sPath;
     282             :     }
     283             : 
     284           0 :     if ( aNames.getLength() != nLen )
     285             :     {
     286             :         OSL_FAIL( "The size must be the same!\n" );
     287           0 :         aNames.realloc( nLen );
     288             :     }
     289             : 
     290           0 :     return aNames;
     291             : }
     292             : 
     293             : // ----------------------------------------------------------------
     294           0 : sal_Bool SAL_CALL OZipFileAccess::hasByName( const OUString& aName )
     295             :     throw (uno::RuntimeException)
     296             : {
     297           0 :     ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
     298             : 
     299           0 :     if ( m_bDisposed )
     300           0 :         throw lang::DisposedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     301             : 
     302           0 :     if ( !m_pZipFile )
     303           0 :         throw io::NotConnectedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     304             : 
     305           0 :     EntryHash::iterator aIter = m_pZipFile->GetEntryHash().find( aName );
     306             : 
     307           0 :     return ( aIter != m_pZipFile->GetEntryHash().end() );
     308             : }
     309             : 
     310             : // ----------------------------------------------------------------
     311           0 : uno::Type SAL_CALL OZipFileAccess::getElementType()
     312             :     throw ( uno::RuntimeException )
     313             : {
     314           0 :     ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
     315             : 
     316           0 :     if ( m_bDisposed )
     317           0 :         throw lang::DisposedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     318             : 
     319           0 :     if ( !m_pZipFile )
     320           0 :         throw io::NotConnectedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     321             : 
     322           0 :     return getCppuType( ( const uno::Reference< io::XInputStream >* )NULL );
     323             : }
     324             : 
     325             : // ----------------------------------------------------------------
     326           0 : sal_Bool SAL_CALL OZipFileAccess::hasElements()
     327             :     throw ( uno::RuntimeException )
     328             : {
     329           0 :     ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
     330             : 
     331           0 :     if ( m_bDisposed )
     332           0 :         throw lang::DisposedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     333             : 
     334           0 :     if ( !m_pZipFile )
     335           0 :         throw io::NotConnectedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     336             : 
     337           0 :     return ( m_pZipFile->GetEntryHash().size() != 0 );
     338             : }
     339             : 
     340             : // XZipFileAccess
     341             : // ----------------------------------------------------------------
     342           0 : uno::Reference< io::XInputStream > SAL_CALL OZipFileAccess::getStreamByPattern( const OUString& aPatternString )
     343             :     throw ( container::NoSuchElementException,
     344             :             io::IOException,
     345             :             uno::RuntimeException )
     346             : {
     347           0 :     ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
     348             : 
     349           0 :     if ( m_bDisposed )
     350           0 :         throw lang::DisposedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     351             : 
     352           0 :     if ( !m_pZipFile )
     353           0 :         throw io::NotConnectedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     354             : 
     355             :     // Code to compare strings by patterns
     356           0 :     uno::Sequence< OUString > aPattern = GetPatternsFromString_Impl( aPatternString );
     357             : 
     358           0 :     for ( EntryHash::iterator aIter = m_pZipFile->GetEntryHash().begin(); aIter != m_pZipFile->GetEntryHash().end(); ++aIter )
     359             :     {
     360           0 :         if ( StringGoodForPattern_Impl( (*aIter).second.sPath, aPattern ) )
     361             :         {
     362           0 :             uno::Reference< io::XInputStream > xEntryStream( m_pZipFile->getDataStream( (*aIter).second,
     363             :                                                                                         ::rtl::Reference< EncryptionData >(),
     364             :                                                                                         sal_False,
     365           0 :                                                                                         m_aMutexHolder ) );
     366             : 
     367           0 :             if ( !xEntryStream.is() )
     368           0 :                 throw uno::RuntimeException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     369           0 :             return xEntryStream;
     370             :         }
     371             :     }
     372             : 
     373           0 :     throw container::NoSuchElementException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     374             : }
     375             : 
     376             : // XComponent
     377             : // ----------------------------------------------------------------
     378          44 : void SAL_CALL OZipFileAccess::dispose()
     379             :     throw ( uno::RuntimeException )
     380             : {
     381          44 :     ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
     382             : 
     383          44 :     if ( m_bDisposed )
     384           0 :         throw lang::DisposedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     385             : 
     386          44 :     if ( m_pListenersContainer )
     387             :     {
     388           0 :            lang::EventObject aSource( static_cast< ::cppu::OWeakObject* >(this) );
     389           0 :         m_pListenersContainer->disposeAndClear( aSource );
     390           0 :         delete m_pListenersContainer;
     391           0 :         m_pListenersContainer = NULL;
     392             :     }
     393             : 
     394          44 :     if ( m_pZipFile )
     395             :     {
     396           0 :         delete m_pZipFile;
     397           0 :         m_pZipFile = NULL;
     398             :     }
     399             : 
     400          44 :     if ( m_xContentStream.is() )
     401             :         try {
     402           0 :             m_xContentStream->closeInput();
     403           0 :         } catch( uno::Exception& )
     404             :         {}
     405             : 
     406          44 :     m_bDisposed = sal_True;
     407          44 : }
     408             : 
     409             : // ----------------------------------------------------------------
     410           0 : void SAL_CALL OZipFileAccess::addEventListener( const uno::Reference< lang::XEventListener >& xListener )
     411             :     throw ( uno::RuntimeException )
     412             : {
     413           0 :     ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
     414             : 
     415           0 :     if ( m_bDisposed )
     416           0 :         throw lang::DisposedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     417             : 
     418           0 :     if ( !m_pListenersContainer )
     419           0 :         m_pListenersContainer = new ::cppu::OInterfaceContainerHelper( m_aMutexHolder->GetMutex() );
     420           0 :     m_pListenersContainer->addInterface( xListener );
     421           0 : }
     422             : 
     423             : // ----------------------------------------------------------------
     424           0 : void SAL_CALL OZipFileAccess::removeEventListener( const uno::Reference< lang::XEventListener >& xListener )
     425             :     throw ( uno::RuntimeException )
     426             : {
     427           0 :     ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
     428             : 
     429           0 :     if ( m_bDisposed )
     430           0 :         throw lang::DisposedException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
     431             : 
     432           0 :     if ( m_pListenersContainer )
     433           0 :         m_pListenersContainer->removeInterface( xListener );
     434           0 : }
     435             : 
     436             : //-------------------------------------------------------------------------
     437          11 : uno::Sequence< OUString > SAL_CALL OZipFileAccess::impl_staticGetSupportedServiceNames()
     438             : {
     439          11 :     uno::Sequence< OUString > aRet(2);
     440          11 :     aRet[0] = "com.sun.star.packages.zip.ZipFileAccess";
     441          11 :     aRet[1] = "com.sun.star.comp.packages.zip.ZipFileAccess";
     442          11 :     return aRet;
     443             : }
     444             : 
     445             : //-------------------------------------------------------------------------
     446          22 : OUString SAL_CALL OZipFileAccess::impl_staticGetImplementationName()
     447             : {
     448          22 :     return OUString("com.sun.star.comp.package.zip.ZipFileAccess");
     449             : }
     450             : 
     451             : //-------------------------------------------------------------------------
     452          44 : uno::Reference< uno::XInterface > SAL_CALL OZipFileAccess::impl_staticCreateSelfInstance(
     453             :             const uno::Reference< lang::XMultiServiceFactory >& rxMSF )
     454             : {
     455          44 :     return uno::Reference< uno::XInterface >( *new OZipFileAccess( comphelper::getComponentContext(rxMSF) ) );
     456             : }
     457             : 
     458             : //-------------------------------------------------------------------------
     459           0 : OUString SAL_CALL OZipFileAccess::getImplementationName()
     460             :     throw ( uno::RuntimeException )
     461             : {
     462           0 :     return impl_staticGetImplementationName();
     463             : }
     464             : 
     465             : //-------------------------------------------------------------------------
     466           0 : sal_Bool SAL_CALL OZipFileAccess::supportsService( const OUString& ServiceName )
     467             :     throw ( uno::RuntimeException )
     468             : {
     469           0 :     uno::Sequence< OUString > aSeq = impl_staticGetSupportedServiceNames();
     470             : 
     471           0 :     for ( sal_Int32 nInd = 0; nInd < aSeq.getLength(); nInd++ )
     472           0 :         if ( ServiceName.compareTo( aSeq[nInd] ) == 0 )
     473           0 :             return sal_True;
     474             : 
     475           0 :     return sal_False;
     476             : }
     477             : 
     478             : //-------------------------------------------------------------------------
     479           0 : uno::Sequence< OUString > SAL_CALL OZipFileAccess::getSupportedServiceNames()
     480             :     throw ( uno::RuntimeException )
     481             : {
     482           0 :     return impl_staticGetSupportedServiceNames();
     483             : }
     484             : 
     485             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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