Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 479 insertions, 0 deletions

diff --git a/package/source/zippackage/zipfileaccess.cxx b/package/source/zippackage/zipfileaccess.cxx
new file mode 100644
index 000000000..d9b17fd80
--- /dev/null
+++ b/package/source/zippackage/zipfileaccess.cxx
@@ -0,0 +1,479 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   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 .
+ */
+
+#include <com/sun/star/lang/DisposedException.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/ucb/XCommandEnvironment.hpp>
+#include <com/sun/star/io/NotConnectedException.hpp>
+#include <com/sun/star/io/XActiveDataSink.hpp>
+#include <com/sun/star/io/XStream.hpp>
+#include <com/sun/star/io/XSeekable.hpp>
+#include <com/sun/star/beans/NamedValue.hpp>
+#include <comphelper/processfactory.hxx>
+#include <cppuhelper/exc_hlp.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <zipfileaccess.hxx>
+#include "ZipPackageSink.hxx"
+#include <EncryptionData.hxx>
+
+#include <ucbhelper/content.hxx>
+#include <rtl/ref.hxx>
+#include <sal/log.hxx>
+#include <osl/diagnose.h>
+
+using namespace ::com::sun::star;
+
+#if OSL_DEBUG_LEVEL > 0
+#define THROW_WHERE SAL_WHERE
+#else
+#define THROW_WHERE ""
+#endif
+
+OZipFileAccess::OZipFileAccess( const uno::Reference< uno::XComponentContext >& rxContext )
+: m_aMutexHolder( new comphelper::RefCountedMutex )
+, m_xContext( rxContext )
+, m_bDisposed( false )
+, m_bOwnContent( false )
+{
+    if ( !rxContext.is() )
+        throw uno::RuntimeException(THROW_WHERE );
+}
+
+OZipFileAccess::~OZipFileAccess()
+{
+    ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
+    if ( !m_bDisposed )
+    {
+        try {
+             // dispose will use refcounting so the further destruction must be avoided
+            osl_atomic_increment(&m_refCount);
+            dispose();
+        } catch( uno::Exception& )
+        {}
+    }
+}
+
+uno::Sequence< OUString > OZipFileAccess::GetPatternsFromString_Impl( const OUString& aString )
+{
+    if ( aString.isEmpty() )
+        return uno::Sequence< OUString >();
+
+    uno::Sequence< OUString > aPattern( 1 );
+    auto pPattern = aPattern.getArray();
+    sal_Int32 nInd = 0;
+
+    const sal_Unicode* pString = aString.getStr();
+    while( *pString )
+    {
+        if ( *pString == '\\' )
+        {
+            pString++;
+
+            if ( *pString == '\\' )
+            {
+                pPattern[nInd] += "\\";
+                pString++;
+            }
+            else if ( *pString == '*' )
+            {
+                pPattern[nInd] += "*";
+                pString++;
+            }
+            else
+            {
+                OSL_FAIL( "The backslash is not guarded!" );
+                pPattern[nInd] += "\\";
+            }
+        }
+        else if ( *pString == '*' )
+        {
+            aPattern.realloc( ( ++nInd ) + 1 );
+            pPattern = aPattern.getArray();
+            pString++;
+        }
+        else
+        {
+            pPattern[nInd] += OUStringChar( *pString );
+            pString++;
+        }
+    }
+
+    return aPattern;
+}
+
+bool OZipFileAccess::StringGoodForPattern_Impl( const OUString& aString,
+                                                    const uno::Sequence< OUString >& aPattern )
+{
+    sal_Int32 nInd = aPattern.getLength() - 1;
+    if ( nInd < 0 )
+        return false;
+
+    if ( nInd == 0 )
+    {
+        if ( aPattern[0].isEmpty() )
+            return true;
+
+        return aString == aPattern[0];
+    }
+
+    sal_Int32 nBeginInd = aPattern[0].getLength();
+    sal_Int32 nEndInd = aString.getLength() - aPattern[nInd].getLength();
+    if ( nEndInd < nBeginInd
+      || ( nEndInd != aString.getLength() && aString.subView( nEndInd ) != aPattern[nInd] )
+      || ( nBeginInd != 0 && aString.subView( 0, nBeginInd ) != aPattern[0] ) )
+          return false;
+
+    for ( sal_Int32 nCurInd = aPattern.getLength() - 2; nCurInd > 0; nCurInd-- )
+    {
+        if ( aPattern[nCurInd].isEmpty() )
+            continue;
+
+        if ( nEndInd == nBeginInd )
+            return false;
+
+        // check that search does not use nEndInd position
+        sal_Int32 nLastInd = aString.lastIndexOf( aPattern[nCurInd], nEndInd - 1 );
+
+        if ( nLastInd == -1 )
+            return false;
+
+        if ( nLastInd < nBeginInd )
+            return false;
+
+        nEndInd = nLastInd;
+    }
+
+    return true;
+}
+
+// XInitialization
+void SAL_CALL OZipFileAccess::initialize( const uno::Sequence< uno::Any >& aArguments )
+{
+    ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
+
+    if ( m_bDisposed )
+        throw lang::DisposedException(THROW_WHERE );
+
+    if ( m_pZipFile )
+        throw uno::RuntimeException(THROW_WHERE ); // initialization is allowed only one time
+
+    if ( !aArguments.hasElements() )
+        throw lang::IllegalArgumentException(THROW_WHERE, uno::Reference< uno::XInterface >(), 1 );
+
+    OSL_ENSURE( aArguments.getLength() == 1, "Too many arguments are provided, only the first one will be used!" );
+
+    OUString aParamURL;
+    uno::Reference< io::XStream > xStream;
+    uno::Reference< io::XSeekable > xSeekable;
+    uno::Sequence<beans::NamedValue> aArgs;
+
+    auto openInputStream = [&]()
+    {
+        ::ucbhelper::Content aContent(
+            aParamURL,
+            uno::Reference< css::ucb::XCommandEnvironment >(),
+            m_xContext );
+        uno::Reference < io::XActiveDataSink > xSink = new ZipPackageSink;
+        if ( aContent.openStream ( xSink ) )
+        {
+            m_xContentStream = xSink->getInputStream();
+            m_bOwnContent = true;
+            xSeekable.set( m_xContentStream, uno::UNO_QUERY );
+        }
+    };
+
+    if ( aArguments[0] >>= aParamURL )
+    {
+        openInputStream();
+    }
+    else if ( aArguments[0] >>= xStream )
+    {
+        // a writable stream can implement both XStream & XInputStream
+        m_xContentStream = xStream->getInputStream();
+        xSeekable.set( xStream, uno::UNO_QUERY );
+    }
+    else if ( aArguments[0] >>= m_xContentStream )
+    {
+        xSeekable.set( m_xContentStream, uno::UNO_QUERY );
+    }
+    else if (aArguments[0] >>= aArgs)
+    {
+        for (const beans::NamedValue& rArg : std::as_const(aArgs))
+        {
+            if (rArg.Name == "URL")
+                rArg.Value >>= aParamURL;
+        }
+
+        if (aParamURL.isEmpty())
+            throw lang::IllegalArgumentException(
+                THROW_WHERE"required argument 'URL' is not given or invalid.",
+                uno::Reference<uno::XInterface>(), 1);
+
+        openInputStream();
+    }
+    else
+        throw lang::IllegalArgumentException(THROW_WHERE, uno::Reference< uno::XInterface >(), 1 );
+
+    if ( !m_xContentStream.is() )
+        throw io::IOException(THROW_WHERE );
+
+    if ( !xSeekable.is() )
+    {
+        // TODO: after fwkbugfix02 is integrated a helper class can be used to make the stream seekable
+        throw io::IOException(THROW_WHERE );
+    }
+
+    // TODO: in case xSeekable is implemented on separated XStream implementation a wrapper is required
+    m_pZipFile.emplace(
+                m_aMutexHolder,
+                m_xContentStream,
+                m_xContext,
+                true );
+}
+
+// XNameAccess
+uno::Any SAL_CALL OZipFileAccess::getByName( const OUString& aName )
+{
+    ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
+
+    if ( m_bDisposed )
+        throw lang::DisposedException(THROW_WHERE );
+
+    if ( !m_pZipFile )
+        throw uno::RuntimeException(THROW_WHERE);
+
+    EntryHash::iterator aIter = m_pZipFile->GetEntryHash().find( aName );
+    if ( aIter == m_pZipFile->GetEntryHash().end() )
+        throw container::NoSuchElementException(THROW_WHERE );
+
+    uno::Reference< io::XInputStream > xEntryStream;
+    try
+    {
+        xEntryStream  = m_pZipFile->getDataStream((*aIter).second,
+                                                  ::rtl::Reference< EncryptionData >(),
+                                                  false,
+                                                  m_aMutexHolder);
+    }
+    catch (const container::NoSuchElementException&)
+    {
+        throw;
+    }
+    catch (const lang::WrappedTargetException&)
+    {
+        throw;
+    }
+    catch (const uno::RuntimeException&)
+    {
+        throw;
+    }
+    catch (const uno::Exception&)
+    {
+        css::uno::Any anyEx = cppu::getCaughtException();
+        throw lang::WrappedTargetException( "This package is unusable!",
+                  static_cast < OWeakObject * > ( this ), anyEx);
+    }
+
+    if ( !xEntryStream.is() )
+        throw uno::RuntimeException(THROW_WHERE );
+
+    return uno::Any ( xEntryStream );
+}
+
+uno::Sequence< OUString > SAL_CALL OZipFileAccess::getElementNames()
+{
+    ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
+
+    if ( m_bDisposed )
+        throw lang::DisposedException(THROW_WHERE );
+
+    if ( !m_pZipFile )
+        throw uno::RuntimeException(THROW_WHERE);
+
+    uno::Sequence< OUString > aNames( m_pZipFile->GetEntryHash().size() );
+    auto pNames = aNames.getArray();
+    sal_Int32 nLen = 0;
+
+    for ( const auto& rEntry : m_pZipFile->GetEntryHash() )
+    {
+        if ( aNames.getLength() < ++nLen )
+        {
+            OSL_FAIL( "The size must be the same!" );
+            aNames.realloc( nLen );
+            pNames = aNames.getArray();
+        }
+
+        pNames[nLen-1] = rEntry.second.sPath;
+    }
+
+    if ( aNames.getLength() != nLen )
+    {
+        OSL_FAIL( "The size must be the same!" );
+        aNames.realloc( nLen );
+    }
+
+    return aNames;
+}
+
+sal_Bool SAL_CALL OZipFileAccess::hasByName( const OUString& aName )
+{
+    ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
+
+    if ( m_bDisposed )
+        throw lang::DisposedException(THROW_WHERE );
+
+    if ( !m_pZipFile )
+        throw uno::RuntimeException(THROW_WHERE);
+
+    EntryHash::iterator aIter = m_pZipFile->GetEntryHash().find( aName );
+
+    return ( aIter != m_pZipFile->GetEntryHash().end() );
+}
+
+uno::Type SAL_CALL OZipFileAccess::getElementType()
+{
+    ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
+
+    if ( m_bDisposed )
+        throw lang::DisposedException(THROW_WHERE );
+
+    if ( !m_pZipFile )
+        throw uno::RuntimeException(THROW_WHERE);
+
+    return cppu::UnoType<io::XInputStream>::get();
+}
+
+sal_Bool SAL_CALL OZipFileAccess::hasElements()
+{
+    ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
+
+    if ( m_bDisposed )
+        throw lang::DisposedException(THROW_WHERE );
+
+    if ( !m_pZipFile )
+        throw uno::RuntimeException(THROW_WHERE);
+
+    return ( !m_pZipFile->GetEntryHash().empty() );
+}
+
+// XZipFileAccess
+uno::Reference< io::XInputStream > SAL_CALL OZipFileAccess::getStreamByPattern( const OUString& aPatternString )
+{
+    ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
+
+    if ( m_bDisposed )
+        throw lang::DisposedException(THROW_WHERE );
+
+    if ( !m_pZipFile )
+        throw io::NotConnectedException(THROW_WHERE );
+
+    // Code to compare strings by patterns
+    uno::Sequence< OUString > aPattern = GetPatternsFromString_Impl( aPatternString );
+
+    auto aIter = std::find_if(m_pZipFile->GetEntryHash().begin(), m_pZipFile->GetEntryHash().end(),
+        [&aPattern](const EntryHash::value_type& rEntry) { return StringGoodForPattern_Impl(rEntry.second.sPath, aPattern); });
+    if (aIter != m_pZipFile->GetEntryHash().end())
+    {
+        uno::Reference< io::XInputStream > xEntryStream( m_pZipFile->getDataStream( (*aIter).second,
+                                                                                    ::rtl::Reference< EncryptionData >(),
+                                                                                    false,
+                                                                                    m_aMutexHolder ) );
+
+        if ( !xEntryStream.is() )
+            throw uno::RuntimeException(THROW_WHERE );
+        return xEntryStream;
+    }
+
+    throw container::NoSuchElementException(THROW_WHERE );
+}
+
+// XComponent
+void SAL_CALL OZipFileAccess::dispose()
+{
+    ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
+
+    if ( m_bDisposed )
+        throw lang::DisposedException(THROW_WHERE );
+
+    if ( m_pListenersContainer )
+    {
+        lang::EventObject aSource( static_cast< ::cppu::OWeakObject* >(this) );
+        m_pListenersContainer->disposeAndClear( aSource );
+        m_pListenersContainer.reset();
+    }
+
+    m_pZipFile.reset();
+
+    if ( m_xContentStream.is() && m_bOwnContent )
+        try {
+            m_xContentStream->closeInput();
+        } catch( uno::Exception& )
+        {}
+
+    m_bDisposed = true;
+}
+
+void SAL_CALL OZipFileAccess::addEventListener( const uno::Reference< lang::XEventListener >& xListener )
+{
+    ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
+
+    if ( m_bDisposed )
+        throw lang::DisposedException(THROW_WHERE );
+
+    if ( !m_pListenersContainer )
+        m_pListenersContainer.reset( new ::comphelper::OInterfaceContainerHelper3<css::lang::XEventListener>( m_aMutexHolder->GetMutex() ) );
+    m_pListenersContainer->addInterface( xListener );
+}
+
+void SAL_CALL OZipFileAccess::removeEventListener( const uno::Reference< lang::XEventListener >& xListener )
+{
+    ::osl::MutexGuard aGuard( m_aMutexHolder->GetMutex() );
+
+    if ( m_bDisposed )
+        throw lang::DisposedException(THROW_WHERE );
+
+    if ( m_pListenersContainer )
+        m_pListenersContainer->removeInterface( xListener );
+}
+
+OUString SAL_CALL OZipFileAccess::getImplementationName()
+{
+    return "com.sun.star.comp.package.zip.ZipFileAccess";
+}
+
+sal_Bool SAL_CALL OZipFileAccess::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+uno::Sequence< OUString > SAL_CALL OZipFileAccess::getSupportedServiceNames()
+{
+    return { "com.sun.star.packages.zip.ZipFileAccess",
+    "com.sun.star.comp.packages.zip.ZipFileAccess" };
+}
+
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+package_OZipFileAccess_get_implementation(
+    css::uno::XComponentContext* context , css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new OZipFileAccess(context));
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */