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, 1600 insertions, 0 deletions

diff --git a/desktop/source/deployment/manager/dp_manager.cxx b/desktop/source/deployment/manager/dp_manager.cxx
new file mode 100644
index 000000000..68765a63f
--- /dev/null
+++ b/desktop/source/deployment/manager/dp_manager.cxx
@@ -0,0 +1,1600 @@
+/* -*- 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 <config_features.h>
+
+#include <dp_interact.h>
+#include <dp_misc.h>
+#include <dp_registry.hxx>
+#include <dp_shared.hxx>
+#include <strings.hrc>
+#include <dp_ucb.h>
+#include <dp_platform.hxx>
+#include "dp_manager.h"
+#include <dp_identifier.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <rtl/string.hxx>
+#include <rtl/uri.hxx>
+#include <rtl/bootstrap.hxx>
+#include <sal/log.hxx>
+#include <tools/urlobj.hxx>
+#include <tools/diagnose_ex.h>
+#include <osl/diagnose.h>
+#include <osl/file.hxx>
+#include <osl/security.hxx>
+#include <cppuhelper/exc_hlp.hxx>
+#include <comphelper/logging.hxx>
+#include <comphelper/sequence.hxx>
+#include <utility>
+#include <xmlscript/xml_helper.hxx>
+#include <svl/inettype.hxx>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
+#include <com/sun/star/beans/UnknownPropertyException.hpp>
+#include <com/sun/star/logging/LogLevel.hpp>
+#include <com/sun/star/logging/FileHandler.hpp>
+#include <com/sun/star/logging/SimpleTextFormatter.hpp>
+#include <com/sun/star/logging/XLogger.hpp>
+#include <com/sun/star/util/XUpdatable.hpp>
+#include <com/sun/star/sdbc/XResultSet.hpp>
+#include <com/sun/star/sdbc/XRow.hpp>
+#include <com/sun/star/ucb/CommandAbortedException.hpp>
+#include <com/sun/star/ucb/CommandFailedException.hpp>
+#include <com/sun/star/ucb/ContentCreationException.hpp>
+#include <com/sun/star/ucb/XContentAccess.hpp>
+#include <com/sun/star/ucb/NameClash.hpp>
+#include <com/sun/star/deployment/DeploymentException.hpp>
+#include <com/sun/star/deployment/InvalidRemovedParameterException.hpp>
+#include <com/sun/star/deployment/Prerequisites.hpp>
+#include <com/sun/star/ucb/UnsupportedCommandException.hpp>
+#include <unotools/tempfile.hxx>
+
+#include <dp_descriptioninfoset.hxx>
+#include "dp_commandenvironments.hxx"
+#include "dp_properties.hxx"
+
+#include <vector>
+#include <algorithm>
+
+using namespace ::dp_misc;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::ucb;
+using namespace ::com::sun::star::logging;
+
+
+namespace dp_manager {
+
+namespace {
+
+struct MatchTempDir
+{
+    OUString m_str;
+    explicit MatchTempDir( OUString str ) : m_str(std::move( str )) {}
+    bool operator () ( ActivePackages::Entries::value_type const & v ) const {
+        return v.second.temporaryName.equalsIgnoreAsciiCase( m_str );
+    }
+};
+
+OUString getExtensionFolder(OUString const &  parentFolder,
+                            Reference<ucb::XCommandEnvironment> const & xCmdEnv,
+                            Reference<uno::XComponentContext> const & xContext)
+{
+    ::ucbhelper::Content tempFolder( parentFolder, xCmdEnv, xContext );
+    Reference<sdbc::XResultSet> xResultSet(
+                StrTitle::createCursor (tempFolder, ::ucbhelper::INCLUDE_FOLDERS_ONLY ) );
+
+    OUString title;
+    if (xResultSet->next())
+    {
+        title = Reference<sdbc::XRow>(
+            xResultSet, UNO_QUERY_THROW )->getString(1 /* Title */ ) ;
+    }
+    return title;
+}
+}
+
+void PackageManagerImpl::initActivationLayer(
+    Reference<XCommandEnvironment> const & xCmdEnv )
+{
+    if (m_activePackages.isEmpty())
+    {
+        OSL_ASSERT( m_registryCache.isEmpty() );
+        // documents temp activation:
+        m_activePackagesDB.reset( new ActivePackages );
+        ::ucbhelper::Content ucbContent;
+        if (create_ucb_content( &ucbContent, m_context, xCmdEnv,
+                                false /* no throw */ ))
+        {
+            // scan for all entries in m_packagesDir:
+            Reference<sdbc::XResultSet> xResultSet(
+                        StrTitle::createCursor (ucbContent, ::ucbhelper::INCLUDE_FOLDERS_AND_DOCUMENTS ) );
+
+            while (xResultSet->next())
+            {
+                Reference<sdbc::XRow> xRow( xResultSet, UNO_QUERY_THROW );
+                OUString title( xRow->getString( 1 /* Title */ ) );
+                // xxx todo: remove workaround for tdoc
+                if ( title == "this_is_a_dummy_stream_just_there_as_a_workaround_for_a_temporary_limitation_of_the_storage_api_implementation" )
+                    continue;
+                if ( title == "META-INF" )
+                    continue;
+
+                ::ucbhelper::Content sourceContent(
+                    Reference<XContentAccess>(
+                        xResultSet, UNO_QUERY_THROW )->queryContent(),
+                    xCmdEnv, m_xComponentContext );
+
+                OUString mediaType( detectMediaType( sourceContent,
+                                                     false /* no throw */) );
+                if (!mediaType.isEmpty())
+                {
+                    ActivePackages::Data dbData;
+                    insertToActivationLayer(
+                        Sequence<css::beans::NamedValue>(),mediaType, sourceContent,
+                        title, &dbData );
+
+                    insertToActivationLayerDB( title, dbData );
+                        //TODO #i73136#: insertToActivationLayerDB needs id not
+                        // title, but the whole m_activePackages.getLength()==0
+                        // case (i.e., document-relative deployment) currently
+                        // does not work, anyway.
+                }
+            }
+        }
+    }
+    else
+    {
+        // user|share:
+        OSL_ASSERT( !m_activePackages.isEmpty() );
+        m_activePackages_expanded = expandUnoRcUrl( m_activePackages );
+        m_registrationData_expanded = expandUnoRcUrl(m_registrationData);
+        if (!m_readOnly)
+            create_folder( nullptr, m_activePackages_expanded, xCmdEnv);
+
+        OUString dbName;
+        if (m_context == "user")
+            dbName = m_activePackages_expanded + ".pmap";
+        else
+        {
+            // Create the extension data base in the user installation
+            create_folder( nullptr, m_registrationData_expanded, xCmdEnv);
+            dbName = m_registrationData_expanded + "/extensions.pmap";
+        }
+        // The data base can always be written because it is always in the user installation
+        m_activePackagesDB.reset( new ActivePackages( dbName ) );
+
+        if (! m_readOnly && m_context != "bundled")
+        {
+            // clean up activation layer, scan for zombie temp dirs:
+            ActivePackages::Entries id2temp( m_activePackagesDB->getEntries() );
+
+            ::ucbhelper::Content tempFolder( m_activePackages_expanded, xCmdEnv, m_xComponentContext );
+            Reference<sdbc::XResultSet> xResultSet(
+                StrTitle::createCursor (tempFolder,
+                                         ::ucbhelper::INCLUDE_DOCUMENTS_ONLY ) );
+
+            // get all temp directories:
+            std::vector<OUString> tempEntries;
+            std::vector<OUString> removedEntries;
+            while (xResultSet->next())
+            {
+                OUString title(
+                    Reference<sdbc::XRow>(
+                        xResultSet, UNO_QUERY_THROW )->getString(
+                            1 /* Title */ ) );
+                if (title.endsWith("removed", &title))
+                {
+                    //save the file name without the "removed" part
+                    removedEntries.push_back(::rtl::Uri::encode(
+                                                title, rtl_UriCharClassPchar,
+                                                rtl_UriEncodeIgnoreEscapes,
+                                                RTL_TEXTENCODING_UTF8 ) );
+                }
+                else
+                {
+                    tempEntries.push_back( ::rtl::Uri::encode(
+                                               title, rtl_UriCharClassPchar,
+                                               rtl_UriEncodeIgnoreEscapes,
+                                               RTL_TEXTENCODING_UTF8 ) );
+                }
+            }
+
+            bool bShared = (m_context == "shared");
+            for (const OUString & tempEntry : tempEntries)
+            {
+                const MatchTempDir match( tempEntry );
+                if (std::none_of( id2temp.begin(), id2temp.end(), match ))
+                {
+                    const OUString url(
+                        makeURL(m_activePackages_expanded, tempEntry ) );
+
+                    //In case of shared extensions, new entries are regarded as
+                    //added extensions if there is no xxx.tmpremoved file.
+                    if (bShared)
+                    {
+                        if (std::find(removedEntries.begin(), removedEntries.end(), tempEntry) ==
+                            removedEntries.end())
+                        {
+                            continue;
+                        }
+                        else
+                        {
+                            //Make sure only the same user removes the extension, who
+                            //previously unregistered it. This is avoid races if multiple instances
+                            //of OOo are running which all have write access to the shared installation.
+                            //For example, a user removes the extension, but keeps OOo
+                            //running. Parts of the extension may still be loaded and used by OOo.
+                            //Therefore the extension is only deleted the next time the extension manager is
+                            //run after restarting OOo. While OOo is still running, another user starts OOo
+                            //which would deleted the extension files. If the same user starts another
+                            //instance of OOo then the lock file will prevent this.
+                            OUString aUserName;
+                            ::osl::Security aSecurity;
+                            aSecurity.getUserName( aUserName );
+                            ucbhelper::Content remFileContent(
+                                url + "removed", Reference<XCommandEnvironment>(), m_xComponentContext);
+                            std::vector<sal_Int8> data = dp_misc::readFile(remFileContent);
+                            OString osData(reinterpret_cast<const char*>(data.data()),
+                                                  data.size());
+                            OUString sData = OStringToOUString(
+                                osData, RTL_TEXTENCODING_UTF8);
+                            if (sData != aUserName)
+                                continue;
+                        }
+                    }
+                    // temp entry not needed anymore:
+                    erase_path( url + "_",
+                                Reference<XCommandEnvironment>(),
+                                false /* no throw: ignore errors */ );
+                    erase_path( url, Reference<XCommandEnvironment>(),
+                                false /* no throw: ignore errors */ );
+                    //delete the xxx.tmpremoved file
+                    erase_path(url + "removed",
+                               Reference<XCommandEnvironment>(), false);
+                }
+            }
+        }
+    }
+}
+
+
+void PackageManagerImpl::initRegistryBackends()
+{
+    if (!m_registryCache.isEmpty())
+        create_folder( nullptr, m_registryCache,
+                       Reference<XCommandEnvironment>(), false);
+    m_xRegistry.set( ::dp_registry::create(
+                         m_context, m_registryCache,
+                         m_xComponentContext ) );
+}
+
+namespace {
+
+osl::FileBase::RC createDirectory(OUString const & url) {
+    auto e = osl::Directory::create(url);
+    if (e != osl::FileBase::E_NOENT) {
+        return e;
+    }
+    INetURLObject o(url);
+    if (!o.removeSegment()) {
+        return osl::FileBase::E_INVAL; // anything but E_None/E_EXIST
+    }
+    e = createDirectory(o.GetMainURL(INetURLObject::DecodeMechanism::NONE));
+    if (e != osl::FileBase::E_None && e != osl::FileBase::E_EXIST) {
+        return e;
+    }
+    return osl::Directory::create(url);
+}
+
+bool isMacroURLReadOnly( const OUString &rMacro )
+{
+    OUString aDirURL( rMacro );
+    ::rtl::Bootstrap::expandMacros( aDirURL );
+
+    ::osl::FileBase::RC aErr = createDirectory( aDirURL );
+    if ( aErr == ::osl::FileBase::E_None )
+        return false; // it will be writeable
+    if ( aErr != ::osl::FileBase::E_EXIST )
+        return true; // some serious problem creating it
+
+    bool bError;
+    sal_uInt64 nWritten = 0;
+    OUString aFileURL( aDirURL + "/stamp.sys" );
+    ::osl::File aFile( aFileURL );
+
+    bError = aFile.open( osl_File_OpenFlag_Read |
+                         osl_File_OpenFlag_Write |
+                         osl_File_OpenFlag_Create ) != ::osl::FileBase::E_None;
+    if (!bError)
+        bError = aFile.write( "1", 1, nWritten ) != ::osl::FileBase::E_None;
+    if (aFile.close() != ::osl::FileBase::E_None)
+        bError = true;
+    if (osl::File::remove( aFileURL ) != ::osl::FileBase::E_None)
+        bError = true;
+
+    SAL_INFO(
+        "desktop.deployment",
+        "local url '" << rMacro << "' -> '" << aFileURL << "' "
+            << (bError ? "is" : "is not") << " readonly\n");
+    return bError;
+}
+
+}
+
+Reference<deployment::XPackageManager> PackageManagerImpl::create(
+    Reference<XComponentContext> const & xComponentContext,
+    OUString const & context )
+{
+    rtl::Reference<PackageManagerImpl> that = new PackageManagerImpl(
+        xComponentContext, context );
+
+    OUString logFile, stamp;
+    if ( context == "user" ) {
+        that->m_activePackages = "vnd.sun.star.expand:$UNO_USER_PACKAGES_CACHE/uno_packages";
+        that->m_registrationData = "vnd.sun.star.expand:$UNO_USER_PACKAGES_CACHE";
+        that->m_registryCache = "vnd.sun.star.expand:$UNO_USER_PACKAGES_CACHE/registry";
+        logFile = "$UNO_USER_PACKAGES_CACHE/log.txt";
+        //We use the extension .sys for the file because on Windows Vista a sys
+        //(as well as exe and dll) file
+        //will not be written in the VirtualStore. For example if the process has no
+        //admin right once cannot write to the %programfiles% folder. However, when
+        //virtualization is used, the file will be written into the VirtualStore and
+        //it appears as if one could write to %programfiles%. When we test for write
+        //access to the office/shared folder for shared extensions then this typically
+        //fails because a normal user typically cannot write to this folder. However,
+        //using virtualization it appears that he/she can. Then a shared extension can
+        //be installed but is only visible for the user (because the extension is in
+        //the virtual store).
+        stamp = "$UNO_USER_PACKAGES_CACHE";
+    }
+    else if ( context == "shared" ) {
+        that->m_activePackages = "vnd.sun.star.expand:$UNO_SHARED_PACKAGES_CACHE/uno_packages";
+        that->m_registrationData = "vnd.sun.star.expand:$SHARED_EXTENSIONS_USER";
+        that->m_registryCache = "vnd.sun.star.expand:$SHARED_EXTENSIONS_USER/registry";
+        logFile = "$SHARED_EXTENSIONS_USER/log.txt";
+#if !HAVE_FEATURE_READONLY_INSTALLSET
+        // The "shared" extensions are read-only when we have a
+        // read-only installset.
+        stamp = "$UNO_SHARED_PACKAGES_CACHE";
+#endif
+    }
+    else if ( context == "bundled" ) {
+        that->m_activePackages = "vnd.sun.star.expand:$BUNDLED_EXTENSIONS";
+        that->m_registrationData = "vnd.sun.star.expand:$BUNDLED_EXTENSIONS_USER";
+        that->m_registryCache = "vnd.sun.star.expand:$BUNDLED_EXTENSIONS_USER/registry";
+        logFile = "$BUNDLED_EXTENSIONS_USER/log.txt";
+        //No stamp file. We assume that bundled is always readonly. It must not be
+        //modified from ExtensionManager but only by the installer
+    }
+    else if ( context == "tmp" ) {
+        that->m_activePackages = "vnd.sun.star.expand:$TMP_EXTENSIONS/extensions";
+        that->m_registrationData = "vnd.sun.star.expand:$TMP_EXTENSIONS";
+        that->m_registryCache = "vnd.sun.star.expand:$TMP_EXTENSIONS/registry";
+        stamp = "$TMP_EXTENSIONS";
+    }
+    else if (context == "bak") {
+        that->m_activePackages = "vnd.sun.star.expand:$BAK_EXTENSIONS/extensions";
+        that->m_registrationData = "vnd.sun.star.expand:$BAK_EXTENSIONS";
+        that->m_registryCache = "vnd.sun.star.expand:$BAK_EXTENSIONS/registry";
+        stamp = "$BAK_EXTENSIONS";
+    }
+
+    else if (! context.match("vnd.sun.star.tdoc:/")) {
+        throw lang::IllegalArgumentException(
+            "invalid context given: " + context,
+            Reference<XInterface>(), static_cast<sal_Int16>(-1) );
+    }
+
+    Reference<XCommandEnvironment> xCmdEnv;
+
+    try {
+        // There is no stamp for the bundled folder:
+        if (!stamp.isEmpty())
+            that->m_readOnly = isMacroURLReadOnly( stamp );
+
+        if (!that->m_readOnly && !logFile.isEmpty())
+        {
+            // Initialize logger which will be used in ProgressLogImpl (created below)
+            rtl::Bootstrap::expandMacros(logFile);
+            comphelper::EventLogger logger(xComponentContext, "unopkg");
+            const Reference<XLogger> xLogger(logger.getLogger());
+            Reference<XLogFormatter> xLogFormatter(SimpleTextFormatter::create(xComponentContext));
+            Sequence < beans::NamedValue > aSeq2 { { "Formatter", Any(xLogFormatter) }, {"FileURL", Any(logFile)} };
+            Reference<XLogHandler> xFileHandler(css::logging::FileHandler::createWithSettings(xComponentContext, aSeq2));
+            xFileHandler->setLevel(LogLevel::WARNING);
+            xLogger->addLogHandler(xFileHandler);
+
+            that->m_xLogFile.set(
+                that->m_xComponentContext->getServiceManager()
+                ->createInstanceWithArgumentsAndContext(
+                    "com.sun.star.comp.deployment.ProgressLog",
+                    Sequence<Any>(),
+                    that->m_xComponentContext ),
+                UNO_QUERY_THROW );
+            xCmdEnv.set( new CmdEnvWrapperImpl( xCmdEnv, that->m_xLogFile ) );
+        }
+
+        that->initRegistryBackends();
+        that->initActivationLayer( xCmdEnv );
+
+        return that;
+
+    }
+    catch (const RuntimeException &) {
+        throw;
+    }
+    catch (const Exception & e) {
+        Any exc( ::cppu::getCaughtException() );
+        throw lang::WrappedTargetRuntimeException(
+            ("[context=\"" + context + "\"] caught unexpected "
+             + exc.getValueType().getTypeName() + ": " + e.Message),
+            Reference<XInterface>(), exc );
+    }
+}
+
+
+PackageManagerImpl::~PackageManagerImpl()
+{
+}
+
+
+void PackageManagerImpl::fireModified()
+{
+    ::cppu::OInterfaceContainerHelper * pContainer = rBHelper.getContainer(
+        cppu::UnoType<util::XModifyListener>::get() );
+    if (pContainer != nullptr) {
+        pContainer->forEach<util::XModifyListener>(
+            [this] (uno::Reference<util::XModifyListener> const& xListener)
+                { return xListener->modified(lang::EventObject(static_cast<OWeakObject *>(this))); });
+    }
+}
+
+
+void PackageManagerImpl::disposing()
+{
+    try {
+//     // xxx todo: guarding?
+//     ::osl::MutexGuard guard( getMutex() );
+        try_dispose( m_xLogFile );
+        m_xLogFile.clear();
+        try_dispose( m_xRegistry );
+        m_xRegistry.clear();
+        m_activePackagesDB.reset();
+        m_xComponentContext.clear();
+
+        t_pm_helper::disposing();
+
+    }
+    catch (const RuntimeException &) {
+        throw;
+    }
+    catch (const Exception &) {
+        Any exc( ::cppu::getCaughtException() );
+        throw lang::WrappedTargetRuntimeException(
+            "caught unexpected exception while disposing...",
+            static_cast<OWeakObject *>(this), exc );
+    }
+}
+
+// XComponent
+
+void PackageManagerImpl::dispose()
+{
+    //Do not call check here. We must not throw an exception here if the object
+    //is being disposed or is already disposed. See com.sun.star.lang.XComponent
+    WeakComponentImplHelperBase::dispose();
+}
+
+
+void PackageManagerImpl::addEventListener(
+    Reference<lang::XEventListener> const & xListener )
+{
+    //Do not call check here. We must not throw an exception here if the object
+    //is being disposed or is already disposed. See com.sun.star.lang.XComponent
+    WeakComponentImplHelperBase::addEventListener( xListener );
+}
+
+
+void PackageManagerImpl::removeEventListener(
+    Reference<lang::XEventListener> const & xListener )
+{
+    //Do not call check here. We must not throw an exception here if the object
+    //is being disposed or is already disposed. See com.sun.star.lang.XComponent
+    WeakComponentImplHelperBase::removeEventListener( xListener );
+}
+
+// XPackageManager
+
+OUString PackageManagerImpl::getContext()
+{
+    check();
+    return m_context;
+}
+
+
+Sequence< Reference<deployment::XPackageTypeInfo> >
+PackageManagerImpl::getSupportedPackageTypes()
+{
+    OSL_ASSERT( m_xRegistry.is() );
+    return m_xRegistry->getSupportedPackageTypes();
+}
+
+
+Reference<task::XAbortChannel> PackageManagerImpl::createAbortChannel()
+{
+    check();
+    return new AbortChannel;
+}
+
+// XModifyBroadcaster
+
+void PackageManagerImpl::addModifyListener(
+    Reference<util::XModifyListener> const & xListener )
+{
+    check();
+    rBHelper.addListener( cppu::UnoType<decltype(xListener)>::get(), xListener );
+}
+
+
+void PackageManagerImpl::removeModifyListener(
+    Reference<util::XModifyListener> const & xListener )
+{
+    check();
+    rBHelper.removeListener( cppu::UnoType<decltype(xListener)>::get(), xListener );
+}
+
+
+OUString PackageManagerImpl::detectMediaType(
+    ::ucbhelper::Content const & ucbContent_, bool throw_exc )
+{
+    ::ucbhelper::Content ucbContent(ucbContent_);
+    OUString url( ucbContent.getURL() );
+    OUString mediaType;
+    if (url.match( "vnd.sun.star.tdoc:" ) || url.match( "vnd.sun.star.pkg:" ))
+    {
+        try {
+            ucbContent.getPropertyValue( "MediaType" ) >>= mediaType;
+        }
+        catch (const beans::UnknownPropertyException &) {
+        }
+        OSL_ENSURE( !mediaType.isEmpty(), "### no media-type?!" );
+    }
+    if (mediaType.isEmpty())
+    {
+        try {
+            Reference<deployment::XPackage> xPackage(
+                m_xRegistry->bindPackage(
+                    url, OUString(), false, OUString(), ucbContent.getCommandEnvironment() ) );
+            const Reference<deployment::XPackageTypeInfo> xPackageType(
+                xPackage->getPackageType() );
+            OSL_ASSERT( xPackageType.is() );
+            if (xPackageType.is())
+                mediaType = xPackageType->getMediaType();
+        }
+        catch (const lang::IllegalArgumentException &) {
+            if (throw_exc)
+                throw;
+            css::uno::Any ex( cppu::getCaughtException() );
+            SAL_WARN( "desktop", exceptionToString(ex) );
+        }
+    }
+    return mediaType;
+}
+
+
+OUString PackageManagerImpl::insertToActivationLayer(
+    Sequence<beans::NamedValue> const & properties,
+    OUString const & mediaType, ::ucbhelper::Content const & sourceContent_,
+    OUString const & title, ActivePackages::Data * dbData )
+{
+    ::ucbhelper::Content sourceContent(sourceContent_);
+    Reference<XCommandEnvironment> xCmdEnv(
+        sourceContent.getCommandEnvironment() );
+
+    OUString baseDir(m_activePackages_expanded);
+    ::utl::TempFile aTemp(&baseDir, false);
+    OUString tempEntry = aTemp.GetURL();
+    tempEntry = tempEntry.copy(tempEntry.lastIndexOf('/') + 1);
+    OUString destFolder = makeURL( m_activePackages, tempEntry) + "_";
+
+    // prepare activation folder:
+    ::ucbhelper::Content destFolderContent;
+    create_folder( &destFolderContent, destFolder, xCmdEnv );
+
+    // copy content into activation temp dir:
+    if (mediaType.matchIgnoreAsciiCase("application/vnd.sun.star.package-bundle") ||
+        // xxx todo: more sophisticated parsing
+        mediaType.matchIgnoreAsciiCase("application/vnd.sun.star.legacy-package-bundle"))
+    {
+        // inflate content:
+        OUStringBuffer buf;
+        if (!sourceContent.isFolder())
+        {
+            buf.append( "vnd.sun.star.zip://" );
+            buf.append( ::rtl::Uri::encode( sourceContent.getURL(),
+                                            rtl_UriCharClassRegName,
+                                            rtl_UriEncodeIgnoreEscapes,
+                                            RTL_TEXTENCODING_UTF8 ) );
+        }
+        else
+        {
+            //Folder. No need to unzip, just copy
+            buf.append(sourceContent.getURL());
+        }
+        buf.append( '/' );
+        sourceContent = ::ucbhelper::Content(
+            buf.makeStringAndClear(), xCmdEnv, m_xComponentContext );
+    }
+    destFolderContent.transferContent(
+            sourceContent, ::ucbhelper::InsertOperation::Copy,
+            title, NameClash::OVERWRITE );
+
+
+    // write to DB:
+    //bundled extensions should only be added by the synchronizeAddedExtensions
+    //functions. Moreover, there is no "temporary folder" for bundled extensions.
+    OSL_ASSERT(!(m_context == "bundled"));
+    OUString sFolderUrl = makeURLAppendSysPathSegment(destFolderContent.getURL(), title);
+    DescriptionInfoset info =
+        dp_misc::getDescriptionInfoset(sFolderUrl);
+    dbData->temporaryName = tempEntry;
+    dbData->fileName = title;
+    dbData->mediaType = mediaType;
+    dbData->version = info.getVersion();
+
+    //No write the properties file next to the extension
+    ExtensionProperties props(sFolderUrl, properties, xCmdEnv, m_xComponentContext);
+    props.write();
+    return destFolder;
+}
+
+
+void PackageManagerImpl::insertToActivationLayerDB(
+    OUString const & id, ActivePackages::Data const & dbData )
+{
+    //access to the database must be guarded. See removePackage
+    const ::osl::MutexGuard guard( m_aMutex );
+    m_activePackagesDB->put( id, dbData );
+}
+
+
+/* The function returns true if there is an extension with the same id already
+    installed which needs to be uninstalled, before the new extension can be installed.
+*/
+bool PackageManagerImpl::isInstalled(
+    Reference<deployment::XPackage> const & package)
+{
+    OUString id(dp_misc::getIdentifier(package));
+    OUString fn(package->getName());
+    bool bInstalled = false;
+    if (m_activePackagesDB->has( id, fn ))
+    {
+        bInstalled = true;
+    }
+    return bInstalled;
+}
+
+// XPackageManager
+
+Reference<deployment::XPackage> PackageManagerImpl::importExtension(
+    Reference<deployment::XPackage> const & extension,
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<XCommandEnvironment> const & xCmdEnv_ )
+{
+    return addPackage(extension->getURL(), Sequence<beans::NamedValue>(),
+                      OUString(), xAbortChannel, xCmdEnv_);
+}
+
+/* The function adds an extension but does not register it!!!
+    It may not do any user interaction. This is done in XExtensionManager::addExtension
+*/
+Reference<deployment::XPackage> PackageManagerImpl::addPackage(
+    OUString const & url,
+    css::uno::Sequence<css::beans::NamedValue> const & properties,
+    OUString const & mediaType_,
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<XCommandEnvironment> const & xCmdEnv_ )
+{
+    check();
+    if (m_readOnly)
+    {
+        OUString message;
+        if (m_context == "shared")
+            message = "You need write permissions to install a shared extension!";
+        else
+            message = "You need write permissions to install this extension!";
+        throw deployment::DeploymentException(
+            message, static_cast<OWeakObject *>(this), Any() );
+    }
+    Reference<XCommandEnvironment> xCmdEnv;
+    if (m_xLogFile.is())
+        xCmdEnv.set( new CmdEnvWrapperImpl( xCmdEnv_, m_xLogFile ) );
+    else
+        xCmdEnv.set( xCmdEnv_ );
+
+    try {
+        ::ucbhelper::Content sourceContent;
+        (void)create_ucb_content( &sourceContent, url, xCmdEnv ); // throws exc
+        const OUString title( StrTitle::getTitle( sourceContent ) );
+        const OUString title_enc( ::rtl::Uri::encode(
+                                      title, rtl_UriCharClassPchar,
+                                      rtl_UriEncodeIgnoreEscapes,
+                                      RTL_TEXTENCODING_UTF8 ) );
+        OUString destFolder;
+
+        OUString mediaType(mediaType_);
+        if (mediaType.isEmpty())
+            mediaType = detectMediaType( sourceContent );
+
+        Reference<deployment::XPackage> xPackage;
+        // copy file:
+        progressUpdate(
+            DpResId(RID_STR_COPYING_PACKAGE) + title, xCmdEnv );
+        if (m_activePackages.isEmpty())
+        {
+            ::ucbhelper::Content docFolderContent;
+            create_folder( &docFolderContent, m_context, xCmdEnv );
+            // copy into document, first:
+            docFolderContent.transferContent(
+                    sourceContent, ::ucbhelper::InsertOperation::Copy,
+                    OUString(),
+                    NameClash::ASK /* xxx todo: ASK not needed? */);
+            // set media-type:
+            ::ucbhelper::Content docContent(
+                makeURL( m_context, title_enc ), xCmdEnv, m_xComponentContext );
+                //TODO #i73136#: using title instead of id can lead to
+                // clashes, but the whole m_activePackages.getLength()==0
+                // case (i.e., document-relative deployment) currently does
+                // not work, anyway.
+            docContent.setPropertyValue("MediaType", Any(mediaType) );
+
+            // xxx todo: obsolete in the future
+            try {
+                docFolderContent.executeCommand( "flush", Any() );
+            }
+            catch (const UnsupportedCommandException &) {
+            }
+        }
+        ActivePackages::Data dbData;
+        destFolder = insertToActivationLayer(
+            properties, mediaType, sourceContent, title, &dbData );
+
+
+        // bind activation package:
+        //Because every shared/user extension will be unpacked in a folder,
+        //which was created with a unique name we will always have two different
+        //XPackage objects, even if the second extension is the same.
+        //Therefore bindPackage does not need a guard here.
+        xPackage = m_xRegistry->bindPackage(
+            makeURL( destFolder, title_enc ), mediaType, false, OUString(), xCmdEnv );
+
+        OSL_ASSERT( xPackage.is() );
+        if (xPackage.is())
+        {
+            bool install = false;
+            try
+            {
+                OUString const id = dp_misc::getIdentifier( xPackage );
+
+                ::osl::MutexGuard g(m_addMutex);
+                if (isInstalled(xPackage))
+                {
+                    //Do not guard the complete function with the getMutex
+                    removePackage(id, xPackage->getName(), xAbortChannel,
+                                  xCmdEnv);
+                }
+                install = true;
+                insertToActivationLayerDB(id, dbData);
+            }
+            catch (...)
+            {
+                deletePackageFromCache( xPackage, destFolder );
+                throw;
+            }
+            if (!install)
+            {
+                deletePackageFromCache( xPackage, destFolder );
+            }
+            //ToDo: We should notify only if the extension is registered
+            fireModified();
+        }
+        return xPackage;
+    }
+    catch (const RuntimeException &) {
+        throw;
+    }
+    catch (const CommandFailedException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const CommandAbortedException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const deployment::DeploymentException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const Exception &) {
+        Any exc( ::cppu::getCaughtException() );
+        logIntern( exc );
+        throw deployment::DeploymentException(
+            DpResId(RID_STR_ERROR_WHILE_ADDING) + url,
+            static_cast<OWeakObject *>(this), exc );
+    }
+}
+void PackageManagerImpl::deletePackageFromCache(
+    Reference<deployment::XPackage> const & xPackage,
+    OUString const & destFolder)
+{
+    try_dispose( xPackage );
+
+    //we remove the package from the uno cache
+    //no service from the package may be loaded at this time!!!
+    erase_path( destFolder, Reference<XCommandEnvironment>(),
+        false /* no throw: ignore errors */ );
+    //rm last character '_'
+    OUString url = destFolder.copy(0, destFolder.getLength() - 1);
+    erase_path( url, Reference<XCommandEnvironment>(),
+        false /* no throw: ignore errors */ );
+
+}
+
+void PackageManagerImpl::removePackage(
+    OUString const & id, OUString const & fileName,
+    Reference<task::XAbortChannel> const & /*xAbortChannel*/,
+    Reference<XCommandEnvironment> const & xCmdEnv_ )
+{
+    check();
+
+    Reference<XCommandEnvironment> xCmdEnv;
+    if (m_xLogFile.is())
+        xCmdEnv.set( new CmdEnvWrapperImpl( xCmdEnv_, m_xLogFile ) );
+    else
+        xCmdEnv.set( xCmdEnv_ );
+
+    try {
+        Reference<deployment::XPackage> xPackage;
+        {
+            const ::osl::MutexGuard guard(m_aMutex);
+            //Check if this extension exist and throw an IllegalArgumentException
+            //if it does not
+            //If the files of the extension are already removed, or there is a
+            //different extension at the same place, for example after updating the
+            //extension, then the returned object is that which uses the database data.
+            xPackage = getDeployedPackage_(id, fileName, xCmdEnv );
+
+
+            //Because the extension is only removed the next time the extension
+            //manager runs after restarting OOo, we need to indicate that a
+            //shared extension was "deleted". When a user starts OOo, then it
+            //will check if something changed in the shared repository. Based on
+            //the flag file it will then recognize, that the extension was
+            //deleted and can then update the extension database of the shared
+            //extensions in the user installation.
+            if ( xPackage.is() && !m_readOnly && !xPackage->isRemoved() && (m_context == "shared"))
+            {
+                ActivePackages::Data val;
+                m_activePackagesDB->get( & val, id, fileName);
+                OSL_ASSERT(!val.temporaryName.isEmpty());
+                OUString url(makeURL(m_activePackages_expanded,
+                                     val.temporaryName + "removed"));
+                ::ucbhelper::Content contentRemoved(url, xCmdEnv, m_xComponentContext);
+                OUString aUserName;
+                ::osl::Security aSecurity;
+                aSecurity.getUserName( aUserName );
+
+                OString stamp = OUStringToOString(aUserName, RTL_TEXTENCODING_UTF8);
+                Reference<css::io::XInputStream> xData(
+                    ::xmlscript::createInputStream(
+                            reinterpret_cast<sal_Int8 const *>(stamp.getStr()),
+                            stamp.getLength() ) );
+                contentRemoved.writeStream( xData, true /* replace existing */ );
+            }
+            m_activePackagesDB->erase( id, fileName ); // to be removed upon next start
+            //remove any cached data hold by the backend
+            m_xRegistry->packageRemoved(xPackage->getURL(), xPackage->getPackageType()->getMediaType());
+        }
+        try_dispose( xPackage );
+
+        fireModified();
+    }
+    catch (const RuntimeException &) {
+        throw;
+    }
+    catch (const CommandFailedException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const CommandAbortedException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const deployment::DeploymentException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const Exception &) {
+        Any exc( ::cppu::getCaughtException() );
+        logIntern( exc );
+        throw deployment::DeploymentException(
+            DpResId(RID_STR_ERROR_WHILE_REMOVING) + id,
+            static_cast<OWeakObject *>(this), exc );
+    }
+}
+
+
+OUString PackageManagerImpl::getDeployPath( ActivePackages::Data const & data )
+{
+    OUStringBuffer buf;
+    buf.append( data.temporaryName );
+    //The bundled extensions are not contained in an additional folder
+    //with a unique name. data.temporaryName contains already the
+    //UTF8 encoded folder name. See PackageManagerImpl::synchronize
+    if (m_context != "bundled")
+    {
+        buf.append( "_/" );
+        buf.append( ::rtl::Uri::encode( data.fileName, rtl_UriCharClassPchar,
+                                    rtl_UriEncodeIgnoreEscapes,
+                                    RTL_TEXTENCODING_UTF8 ) );
+    }
+    return makeURL( m_activePackages, buf.makeStringAndClear() );
+}
+
+
+Reference<deployment::XPackage> PackageManagerImpl::getDeployedPackage_(
+    OUString const & id, OUString const & fileName,
+    Reference<XCommandEnvironment> const & xCmdEnv )
+{
+    ActivePackages::Data val;
+    if (m_activePackagesDB->get( &val, id, fileName ))
+    {
+        return getDeployedPackage_( id, val, xCmdEnv );
+    }
+    throw lang::IllegalArgumentException(
+        DpResId(RID_STR_NO_SUCH_PACKAGE) + id,
+        static_cast<OWeakObject *>(this), static_cast<sal_Int16>(-1) );
+}
+
+
+Reference<deployment::XPackage> PackageManagerImpl::getDeployedPackage_(
+    std::u16string_view id, ActivePackages::Data const & data,
+    Reference<XCommandEnvironment> const & xCmdEnv, bool ignoreAlienPlatforms )
+{
+    if (ignoreAlienPlatforms)
+    {
+        OUString type, subType;
+        INetContentTypeParameterList params;
+        if (INetContentTypes::parse( data.mediaType, type, subType, &params ))
+        {
+            auto const iter = params.find(OString("platform"));
+            if (iter != params.end() && !platform_fits(iter->second.m_sValue))
+                throw lang::IllegalArgumentException(
+                    DpResId(RID_STR_NO_SUCH_PACKAGE) + id,
+                    static_cast<OWeakObject *>(this),
+                    static_cast<sal_Int16>(-1) );
+        }
+    }
+    Reference<deployment::XPackage> xExtension;
+    try
+    {
+        //Ignore extensions where XPackage::checkPrerequisites failed.
+        //They must not be usable for this user.
+        if (data.failedPrerequisites == "0")
+        {
+            xExtension = m_xRegistry->bindPackage(
+                getDeployPath( data ), data.mediaType, false, OUString(), xCmdEnv );
+        }
+    }
+    catch (const deployment::InvalidRemovedParameterException& e)
+    {
+        xExtension = e.Extension;
+    }
+    return xExtension;
+}
+
+
+Sequence< Reference<deployment::XPackage> >
+PackageManagerImpl::getDeployedPackages_(
+    Reference<XCommandEnvironment> const & xCmdEnv )
+{
+    std::vector< Reference<deployment::XPackage> > packages;
+    ActivePackages::Entries id2temp( m_activePackagesDB->getEntries() );
+    for (auto const& elem : id2temp)
+    {
+        if (elem.second.failedPrerequisites != "0")
+            continue;
+        try {
+            packages.push_back(
+                getDeployedPackage_(
+                    elem.first, elem.second, xCmdEnv,
+                    true /* xxx todo: think of GUI:
+                            ignore other platforms than the current one */ ) );
+        }
+        catch (const lang::IllegalArgumentException &) {
+            // ignore
+            TOOLS_WARN_EXCEPTION( "desktop", "" );
+        }
+        catch (const deployment::DeploymentException&) {
+            // ignore
+            TOOLS_WARN_EXCEPTION( "desktop", "" );
+        }
+    }
+    return comphelper::containerToSequence(packages);
+}
+
+
+Reference<deployment::XPackage> PackageManagerImpl::getDeployedPackage(
+    OUString const & id, OUString const & fileName,
+    Reference<XCommandEnvironment> const & xCmdEnv_ )
+{
+    check();
+    Reference<XCommandEnvironment> xCmdEnv;
+    if (m_xLogFile.is())
+        xCmdEnv.set( new CmdEnvWrapperImpl( xCmdEnv_, m_xLogFile ) );
+    else
+        xCmdEnv.set( xCmdEnv_ );
+
+    try {
+        const ::osl::MutexGuard guard( m_aMutex );
+        return getDeployedPackage_( id, fileName, xCmdEnv );
+    }
+    catch (const RuntimeException &) {
+        throw;
+    }
+    catch (const CommandFailedException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const deployment::DeploymentException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const Exception &) {
+        Any exc( ::cppu::getCaughtException() );
+        logIntern( exc );
+        throw deployment::DeploymentException(
+            // ought never occur...
+            "error while accessing deployed package: " + id,
+            static_cast<OWeakObject *>(this), exc );
+    }
+}
+
+
+Sequence< Reference<deployment::XPackage> >
+PackageManagerImpl::getDeployedPackages(
+    Reference<task::XAbortChannel> const &,
+    Reference<XCommandEnvironment> const & xCmdEnv_ )
+{
+    check();
+    Reference<XCommandEnvironment> xCmdEnv;
+    if (m_xLogFile.is())
+        xCmdEnv.set( new CmdEnvWrapperImpl( xCmdEnv_, m_xLogFile ) );
+    else
+        xCmdEnv.set( xCmdEnv_ );
+
+    try {
+        const ::osl::MutexGuard guard( m_aMutex );
+        return getDeployedPackages_( xCmdEnv );
+    }
+    catch (const RuntimeException &) {
+        throw;
+    }
+    catch (const CommandFailedException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const CommandAbortedException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const deployment::DeploymentException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const Exception &) {
+        Any exc( ::cppu::getCaughtException() );
+        logIntern( exc );
+        throw deployment::DeploymentException(
+            // ought never occur...
+            "error while getting all deployed packages: " + m_context,
+            static_cast<OWeakObject *>(this), exc );
+    }
+}
+
+
+//ToDo: the function must not call registerPackage, do this in
+//XExtensionManager.reinstallDeployedExtensions
+void PackageManagerImpl::reinstallDeployedPackages(
+    sal_Bool force, Reference<task::XAbortChannel> const &  /*xAbortChannel*/,
+    Reference<XCommandEnvironment> const & xCmdEnv_ )
+{
+    check();
+    if (!force && office_is_running())
+        throw RuntimeException(
+            "You must close any running Office process before reinstalling packages!",
+            static_cast<OWeakObject *>(this) );
+
+    Reference<XCommandEnvironment> xCmdEnv;
+    if (m_xLogFile.is())
+        xCmdEnv.set( new CmdEnvWrapperImpl( xCmdEnv_, m_xLogFile ) );
+    else
+        xCmdEnv.set( xCmdEnv_ );
+
+    try {
+        ProgressLevel progress(
+            xCmdEnv, "Reinstalling all deployed packages..." );
+
+        try_dispose( m_xRegistry );
+        m_xRegistry.clear();
+        if (!m_registryCache.isEmpty())
+            erase_path( m_registryCache, xCmdEnv );
+        initRegistryBackends();
+        Reference<util::XUpdatable> xUpdatable( m_xRegistry, UNO_QUERY );
+        if (xUpdatable.is())
+            xUpdatable->update();
+
+        //registering is done by the ExtensionManager service.
+    }
+    catch (const RuntimeException &) {
+        throw;
+    }
+    catch (const CommandFailedException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const CommandAbortedException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const deployment::DeploymentException & exc) {
+        logIntern( Any(exc) );
+        throw;
+    }
+    catch (const Exception &) {
+        Any exc( ::cppu::getCaughtException() );
+        logIntern( exc );
+        throw deployment::DeploymentException(
+            "Error while reinstalling all previously deployed packages of context " + m_context,
+            static_cast<OWeakObject *>(this), exc );
+    }
+}
+
+
+sal_Bool SAL_CALL PackageManagerImpl::isReadOnly(  )
+{
+    return m_readOnly;
+}
+bool PackageManagerImpl::synchronizeRemovedExtensions(
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<css::ucb::XCommandEnvironment> const & xCmdEnv)
+{
+
+    //find all which are in the extension data base but which
+    //are removed already.
+    OSL_ASSERT(!(m_context == "user"));
+    bool bModified = false;
+    ActivePackages::Entries id2temp( m_activePackagesDB->getEntries() );
+
+    bool bShared = (m_context == "shared");
+
+    for (auto const& elem : id2temp)
+    {
+        try
+        {
+            //Get the URL to the extensions folder, first make the url for the
+            //shared repository including the temporary name
+            OUString url = makeURL(m_activePackages, elem.second.temporaryName);
+            if (bShared)
+                url = makeURLAppendSysPathSegment( url + "_", elem.second.fileName);
+
+            bool bRemoved = false;
+            //Check if the URL to the extension is still the same
+            ::ucbhelper::Content contentExtension;
+
+            if (!create_ucb_content(
+                    &contentExtension, url,
+                    Reference<XCommandEnvironment>(), false))
+            {
+                bRemoved = true;
+            }
+
+            //The folder is in the extension database, but it can still be deleted.
+            //look for the xxx.tmpremoved file
+            //There can also be the case that a different extension was installed
+            //in a "temp" folder with name that is already used.
+            if (!bRemoved && bShared)
+            {
+                ::ucbhelper::Content contentRemoved;
+
+                if (create_ucb_content(
+                        &contentRemoved,
+                        m_activePackages_expanded + "/" +
+                        elem.second.temporaryName + "removed",
+                        Reference<XCommandEnvironment>(), false))
+                {
+                    bRemoved = true;
+                }
+            }
+
+            if (!bRemoved)
+            {
+                //There may be another extensions at the same place
+                dp_misc::DescriptionInfoset infoset =
+                    dp_misc::getDescriptionInfoset(url);
+                OSL_ENSURE(infoset.hasDescription() && infoset.getIdentifier(),
+                           "Extension Manager: bundled and shared extensions "
+                           "must have an identifier and a version");
+                if (infoset.hasDescription() &&
+                    infoset.getIdentifier() &&
+                    ( elem.first != *(infoset.getIdentifier())
+                      || elem.second.version != infoset.getVersion()))
+                {
+                    bRemoved = true;
+                }
+
+            }
+            if (bRemoved)
+            {
+                Reference<deployment::XPackage> xPackage = m_xRegistry->bindPackage(
+                    url, elem.second.mediaType, true, elem.first, xCmdEnv );
+                OSL_ASSERT(xPackage.is()); //Even if the files are removed, we must get the object.
+                xPackage->revokePackage(true, xAbortChannel, xCmdEnv);
+                removePackage(xPackage->getIdentifier().Value, xPackage->getName(),
+                              xAbortChannel, xCmdEnv);
+                bModified = true;
+            }
+        }
+        catch( const uno::Exception & )
+        {
+            TOOLS_WARN_EXCEPTION("desktop.deployment", "");
+        }
+    }
+    return bModified;
+}
+
+
+bool PackageManagerImpl::synchronizeAddedExtensions(
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<css::ucb::XCommandEnvironment> const & xCmdEnv)
+{
+    bool bModified = false;
+    OSL_ASSERT(!(m_context == "user"));
+
+    ActivePackages::Entries id2temp( m_activePackagesDB->getEntries() );
+    //check if the folder exist at all. The shared extension folder
+    //may not exist for a normal user.
+    bool bOk=true;
+    try
+    {
+        bOk = create_ucb_content(
+                nullptr, m_activePackages_expanded, Reference<css::ucb::XCommandEnvironment>(), false);
+    }
+    catch (const css::ucb::ContentCreationException&)
+    {
+        bOk = false;
+    }
+
+    if (!bOk)
+        return bModified;
+
+    ::ucbhelper::Content tempFolder( m_activePackages_expanded, xCmdEnv, m_xComponentContext );
+    Reference<sdbc::XResultSet> xResultSet(
+        StrTitle::createCursor( tempFolder,
+                                ::ucbhelper::INCLUDE_FOLDERS_ONLY ) );
+
+    while (xResultSet->next())
+    {
+        try
+        {
+            OUString title(
+                Reference<sdbc::XRow>(
+                    xResultSet, UNO_QUERY_THROW )->getString(
+                        1 /* Title */ ) );
+            //The temporary folders of user and shared have an '_' at then end.
+            //But the name in ActivePackages.temporaryName is saved without.
+            OUString title2 = title;
+            bool bShared = (m_context == "shared");
+            if (bShared)
+            {
+                OSL_ASSERT(title2.endsWith("_"));
+                title2 = title2.copy(0, title2.getLength() -1);
+            }
+            OUString titleEncoded =  ::rtl::Uri::encode(
+                title2, rtl_UriCharClassPchar,
+                rtl_UriEncodeIgnoreEscapes,
+                RTL_TEXTENCODING_UTF8);
+
+            //It is sufficient to check for the folder name, because when the administrator
+            //installed the extension it was already checked if there is one with the
+            //same identifier.
+            const MatchTempDir match(titleEncoded);
+            if (std::none_of( id2temp.begin(), id2temp.end(), match ))
+            {
+
+                // The folder was not found in the data base, so it must be
+                // an added extension
+                OUString url(m_activePackages_expanded + "/" + titleEncoded);
+                OUString sExtFolder;
+                if (bShared) //that is, shared
+                {
+                    //Check if the extension was not "deleted" already which is indicated
+                    //by a xxx.tmpremoved file
+                    ::ucbhelper::Content contentRemoved;
+                    if (create_ucb_content(&contentRemoved, url + "removed",
+                                           Reference<XCommandEnvironment>(), false))
+                        continue;
+                    sExtFolder = getExtensionFolder(
+                        m_activePackages_expanded + "/" + titleEncoded + "_",
+                        xCmdEnv, m_xComponentContext);
+                    url = makeURLAppendSysPathSegment(m_activePackages_expanded, title);
+                    url = makeURLAppendSysPathSegment(url, sExtFolder);
+                }
+                Reference<deployment::XPackage> xPackage = m_xRegistry->bindPackage(
+                    url, OUString(), false, OUString(), xCmdEnv );
+                if (xPackage.is())
+                {
+                    OUString id = dp_misc::getIdentifier( xPackage );
+
+                    //Prepare the database entry
+                    ActivePackages::Data dbData;
+
+                    dbData.temporaryName = titleEncoded;
+                    if (bShared)
+                        dbData.fileName = sExtFolder;
+                    else
+                        dbData.fileName = title;
+                    dbData.mediaType = xPackage->getPackageType()->getMediaType();
+                    dbData.version = xPackage->getVersion();
+                    SAL_WARN_IF(
+                        dbData.version.isEmpty(), "desktop.deployment",
+                        "bundled/shared extension " << id << " at <" << url
+                            << "> has no explicit version");
+
+                    //We provide a special command environment that will prevent
+                    //showing a license if simple-license/@accept-by = "admin"
+                    //It will also prevent showing the license for bundled extensions
+                    //which is not supported.
+                    OSL_ASSERT(!(m_context == "user"));
+
+                    // shall the license be suppressed?
+                    DescriptionInfoset info =
+                        dp_misc::getDescriptionInfoset(url);
+                    ::std::optional<dp_misc::SimpleLicenseAttributes>
+                          attr = info.getSimpleLicenseAttributes();
+                    ExtensionProperties props(url, xCmdEnv, m_xComponentContext);
+                    bool bNoLicense = false;
+                    if (attr && attr->suppressIfRequired && props.isSuppressedLicense())
+                        bNoLicense = true;
+
+                    Reference<ucb::XCommandEnvironment> licCmdEnv(
+                        new LicenseCommandEnv(xCmdEnv->getInteractionHandler(),
+                                              bNoLicense, m_context));
+                    sal_Int32 failedPrereq = xPackage->checkPrerequisites(
+                        xAbortChannel, licCmdEnv, false);
+                    //Remember that this failed. For example, the user
+                    //could have declined the license. Then the next time the
+                    //extension folder is investigated we do not want to
+                    //try to install the extension again.
+                    dbData.failedPrerequisites = OUString::number(failedPrereq);
+                    insertToActivationLayerDB(id, dbData);
+                    bModified = true;
+                }
+            }
+        }
+        catch (const uno::Exception &)
+        {
+            // Looks like exceptions being caught here is not an uncommon case.
+            TOOLS_WARN_EXCEPTION("desktop.deployment", "");
+        }
+    }
+    return bModified;
+}
+
+sal_Bool PackageManagerImpl::synchronize(
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<css::ucb::XCommandEnvironment> const & xCmdEnv)
+{
+    check();
+    bool bModified = false;
+    if (m_context == "user")
+        return bModified;
+    bModified |=
+        synchronizeRemovedExtensions(xAbortChannel, xCmdEnv);
+    bModified |= synchronizeAddedExtensions(xAbortChannel, xCmdEnv);
+
+    return bModified;
+}
+
+Sequence< Reference<deployment::XPackage> > PackageManagerImpl::getExtensionsWithUnacceptedLicenses(
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv)
+{
+    std::vector<Reference<deployment::XPackage> > vec;
+
+    try
+    {
+        const ::osl::MutexGuard guard( m_aMutex );
+        // clean up activation layer, scan for zombie temp dirs:
+        ActivePackages::Entries id2temp( m_activePackagesDB->getEntries() );
+
+        bool bShared = (m_context == "shared");
+
+        for (auto const& elem : id2temp)
+        {
+            //Get the database entry
+            ActivePackages::Data const & dbData = elem.second;
+            sal_Int32 failedPrereq = dbData.failedPrerequisites.toInt32();
+            //If the installation failed for other reason then the license then we
+            //ignore it.
+            if (failedPrereq ^ deployment::Prerequisites::LICENSE)
+                continue;
+
+            //Prepare the URL to the extension
+            OUString url = makeURL(m_activePackages, elem.second.temporaryName);
+            if (bShared)
+                url = makeURLAppendSysPathSegment( url + "_", elem.second.fileName);
+
+            Reference<deployment::XPackage> p = m_xRegistry->bindPackage(
+                url, OUString(), false, OUString(), xCmdEnv );
+
+            if (p.is())
+                vec.push_back(p);
+
+        }
+        return ::comphelper::containerToSequence(vec);
+    }
+    catch (const deployment::DeploymentException &)
+    {
+        throw;
+    }
+    catch (const RuntimeException&)
+    {
+        throw;
+    }
+    catch (...)
+    {
+        Any exc = ::cppu::getCaughtException();
+        deployment::DeploymentException de(
+            "PackageManagerImpl::getExtensionsWithUnacceptedLicenses",
+            static_cast<OWeakObject*>(this), exc);
+        exc <<= de;
+        ::cppu::throwException(exc);
+    }
+
+    return ::comphelper::containerToSequence(vec);
+}
+
+sal_Int32 PackageManagerImpl::checkPrerequisites(
+    css::uno::Reference<css::deployment::XPackage> const & extension,
+    css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+    css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv )
+{
+    try
+    {
+        if (!extension.is())
+            return 0;
+        if (m_context != extension->getRepositoryName())
+            throw lang::IllegalArgumentException(
+                "PackageManagerImpl::checkPrerequisites: extension is not from this repository.",
+                nullptr, 0);
+
+        ActivePackages::Data dbData;
+        OUString id = dp_misc::getIdentifier(extension);
+        if (!m_activePackagesDB->get( &dbData, id, OUString()))
+        {
+            throw lang::IllegalArgumentException(
+                "PackageManagerImpl::checkPrerequisites: unknown extension",
+                nullptr, 0);
+
+        }
+        //If the license was already displayed, then do not show it again
+        Reference<ucb::XCommandEnvironment> _xCmdEnv = xCmdEnv;
+        sal_Int32 prereq = dbData.failedPrerequisites.toInt32();
+        if ( !(prereq & deployment::Prerequisites::LICENSE))
+            _xCmdEnv = new NoLicenseCommandEnv(xCmdEnv->getInteractionHandler());
+
+        sal_Int32 failedPrereq = extension->checkPrerequisites(
+            xAbortChannel, _xCmdEnv, false);
+        dbData.failedPrerequisites = OUString::number(failedPrereq);
+        insertToActivationLayerDB(id, dbData);
+        return 0;
+    }
+    catch ( const deployment::DeploymentException& ) {
+        throw;
+    } catch ( const ucb::CommandFailedException & ) {
+        throw;
+    } catch ( const ucb::CommandAbortedException & ) {
+        throw;
+    } catch (const lang::IllegalArgumentException &) {
+        throw;
+    } catch (const uno::RuntimeException &) {
+        throw;
+    } catch (...) {
+        uno::Any excOccurred = ::cppu::getCaughtException();
+        deployment::DeploymentException exc(
+            "PackageManagerImpl::checkPrerequisites: exception ",
+            static_cast<OWeakObject*>(this), excOccurred);
+        throw exc;
+    }
+}
+
+
+PackageManagerImpl::CmdEnvWrapperImpl::~CmdEnvWrapperImpl()
+{
+}
+
+
+PackageManagerImpl::CmdEnvWrapperImpl::CmdEnvWrapperImpl(
+    Reference<XCommandEnvironment> const & xUserCmdEnv,
+    Reference<XProgressHandler> const & xLogFile )
+    : m_xLogFile( xLogFile )
+{
+    if (xUserCmdEnv.is()) {
+        m_xUserProgress.set( xUserCmdEnv->getProgressHandler() );
+        m_xUserInteractionHandler.set( xUserCmdEnv->getInteractionHandler() );
+    }
+}
+
+// XCommandEnvironment
+
+Reference<task::XInteractionHandler>
+PackageManagerImpl::CmdEnvWrapperImpl::getInteractionHandler()
+{
+    return m_xUserInteractionHandler;
+}
+
+
+Reference<XProgressHandler>
+PackageManagerImpl::CmdEnvWrapperImpl::getProgressHandler()
+{
+    return this;
+}
+
+// XProgressHandler
+
+void PackageManagerImpl::CmdEnvWrapperImpl::push( Any const & Status )
+{
+    if (m_xLogFile.is())
+        m_xLogFile->push( Status );
+    if (m_xUserProgress.is())
+        m_xUserProgress->push( Status );
+}
+
+
+void PackageManagerImpl::CmdEnvWrapperImpl::update( Any const & Status )
+{
+    if (m_xLogFile.is())
+        m_xLogFile->update( Status );
+    if (m_xUserProgress.is())
+        m_xUserProgress->update( Status );
+}
+
+
+void PackageManagerImpl::CmdEnvWrapperImpl::pop()
+{
+    if (m_xLogFile.is())
+        m_xLogFile->pop();
+    if (m_xUserProgress.is())
+        m_xUserProgress->pop();
+}
+
+} // namespace dp_manager
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */