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

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

12 files changed, 4915 insertions, 0 deletions

diff --git a/desktop/source/deployment/manager/dp_activepackages.cxx b/desktop/source/deployment/manager/dp_activepackages.cxx
new file mode 100644
index 000000000..c1c5f2b28
--- /dev/null
+++ b/desktop/source/deployment/manager/dp_activepackages.cxx
@@ -0,0 +1,217 @@
+/* -*- 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_extensions.h>
+
+#include <sal/config.h>
+
+#include <string_view>
+#include <utility>
+
+#include <osl/diagnose.h>
+#include <rtl/string.hxx>
+#include <rtl/textenc.h>
+#include <rtl/ustring.hxx>
+
+#include <dp_identifier.hxx>
+#include "dp_activepackages.hxx"
+
+// Old format of database entry:
+//   key: UTF8(filename)
+//   value: UTF8(tempname ";" mediatype)
+// New format of database entry:
+//   key: 0xFF UTF8(identifier)
+//   value: UTF8(tempname) 0xFF UTF8(filename) 0xFF UTF8(mediatype)
+
+#if HAVE_FEATURE_EXTENSIONS
+
+namespace {
+
+constexpr const char separator[] = "\xff";
+
+OString oldKey(std::u16string_view fileName) {
+    return OUStringToOString(fileName, RTL_TEXTENCODING_UTF8);
+}
+
+OString newKey(std::u16string_view id) {
+    return separator + OUStringToOString(id, RTL_TEXTENCODING_UTF8);
+}
+
+::dp_manager::ActivePackages::Data decodeOldData(
+    OUString const & fileName, OString const & value)
+{
+    ::dp_manager::ActivePackages::Data d;
+    sal_Int32 i = value.indexOf(';');
+    OSL_ASSERT(i >= 0);
+    d.temporaryName = OUString(value.getStr(), i, RTL_TEXTENCODING_UTF8);
+    d.fileName = fileName;
+    d.mediaType = OUString(
+        value.getStr() + i + 1, value.getLength() - i - 1,
+        RTL_TEXTENCODING_UTF8);
+    return d;
+}
+
+::dp_manager::ActivePackages::Data decodeNewData(OString const & value) {
+    ::dp_manager::ActivePackages::Data d;
+    sal_Int32 i1 = value.indexOf(separator);
+    OSL_ASSERT(i1 >= 0);
+    d.temporaryName = OUString(
+        value.getStr(), i1, RTL_TEXTENCODING_UTF8);
+    sal_Int32 i2 = value.indexOf(separator, i1 + 1);
+    OSL_ASSERT(i2 >= 0);
+    d.fileName = OUString(
+        value.getStr() + i1 + 1, i2 - i1 - 1, RTL_TEXTENCODING_UTF8);
+    sal_Int32 i3 = value.indexOf(separator, i2 + 1);
+
+    if (i3 < 0)
+    {
+        //Before ActivePackages::Data::version was added
+        d.mediaType = OUString(
+            value.getStr() + i2 + 1, value.getLength() - i2 - 1,
+            RTL_TEXTENCODING_UTF8);
+    }
+    else
+    {
+        sal_Int32 i4 = value.indexOf(separator, i3 + 1);
+        d.mediaType = OUString(
+            value.getStr() + i2 + 1, i3 - i2 -1, RTL_TEXTENCODING_UTF8);
+        d.version = OUString(
+            value.getStr() + i3 + 1, i4 - i3 - 1,
+            RTL_TEXTENCODING_UTF8);
+        d.failedPrerequisites = OUString(
+            value.getStr() + i4 + 1, value.getLength() - i4 - 1,
+            RTL_TEXTENCODING_UTF8);
+    }
+    return d;
+}
+
+}
+#endif
+
+namespace dp_manager {
+
+ActivePackages::ActivePackages() {}
+
+ActivePackages::ActivePackages(OUString const & url)
+#if HAVE_FEATURE_EXTENSIONS
+    : m_map(url)
+#endif
+{
+#if !HAVE_FEATURE_EXTENSIONS
+    (void) url;
+#endif
+}
+
+ActivePackages::~ActivePackages() {}
+
+bool ActivePackages::has(
+    OUString const & id, OUString const & fileName) const
+{
+    return get(nullptr, id, fileName);
+}
+
+bool ActivePackages::get(
+    Data * data, OUString const & id, OUString const & fileName)
+    const
+{
+#if HAVE_FEATURE_EXTENSIONS
+    OString v;
+    if (m_map.get(&v, newKey(id))) {
+        if (data != nullptr) {
+            *data = decodeNewData(v);
+        }
+        return true;
+    } else if (m_map.get(&v, oldKey(fileName))) {
+        if (data != nullptr) {
+            *data = decodeOldData(fileName, v);
+        }
+        return true;
+    } else {
+        return false;
+    }
+#else
+    (void) data;
+    (void) id;
+    (void) fileName;
+    (void) this;
+    return false;
+#endif
+}
+
+ActivePackages::Entries ActivePackages::getEntries() const {
+    Entries es;
+#if HAVE_FEATURE_EXTENSIONS
+    ::dp_misc::t_string2string_map m(m_map.getEntries());
+    for (auto const& elem : m)
+    {
+        if (!elem.first.isEmpty() && elem.first[0] == separator[0]) {
+            es.emplace_back(
+                    OUString(
+                        elem.first.getStr() + 1, elem.first.getLength() - 1,
+                        RTL_TEXTENCODING_UTF8),
+                    decodeNewData(elem.second));
+        } else {
+            OUString fn(
+                OStringToOUString(elem.first, RTL_TEXTENCODING_UTF8));
+            es.emplace_back(
+                    ::dp_misc::generateLegacyIdentifier(fn),
+                    decodeOldData(fn, elem.second));
+        }
+    }
+#else
+    (void) this;
+#endif
+    return es;
+}
+
+void ActivePackages::put(OUString const & id, Data const & data) {
+#if HAVE_FEATURE_EXTENSIONS
+    OString b =
+        OUStringToOString(data.temporaryName, RTL_TEXTENCODING_UTF8) +
+        separator +
+        OUStringToOString(data.fileName, RTL_TEXTENCODING_UTF8) +
+        separator +
+        OUStringToOString(data.mediaType, RTL_TEXTENCODING_UTF8) +
+        separator +
+        OUStringToOString(data.version, RTL_TEXTENCODING_UTF8) +
+        separator +
+        OUStringToOString(data.failedPrerequisites, RTL_TEXTENCODING_UTF8);
+    m_map.put(newKey(id), b);
+#else
+    (void) id;
+    (void) data;
+    (void) this;
+#endif
+}
+
+void ActivePackages::erase(
+    OUString const & id, OUString const & fileName)
+{
+#if HAVE_FEATURE_EXTENSIONS
+    m_map.erase(newKey(id)) || m_map.erase(oldKey(fileName));
+#else
+    (void) id;
+    (void) fileName;
+    (void) this;
+#endif
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/desktop/source/deployment/manager/dp_activepackages.hxx b/desktop/source/deployment/manager/dp_activepackages.hxx
new file mode 100644
index 000000000..fae938019
--- /dev/null
+++ b/desktop/source/deployment/manager/dp_activepackages.hxx
@@ -0,0 +1,95 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <config_extensions.h>
+
+#include <sal/config.h>
+#include <rtl/ustring.hxx>
+
+#include <utility>
+#include <vector>
+
+#if HAVE_FEATURE_EXTENSIONS
+#include <dp_persmap.h>
+#endif
+
+
+namespace dp_manager {
+
+class ActivePackages {
+public:
+    struct Data {
+        Data(): failedPrerequisites("0")
+            {}
+        /* name of the temporary file (shared, user extension) or the name of
+           the folder of the bundled extension.
+           It does not contain the trailing '_' of the folder.
+           UTF-8 encoded
+        */
+        OUString temporaryName;
+        /* The file name (shared, user) or the folder name (bundled)
+           If the key is the file name, then file name is not encoded.
+           If the key is the identifier then the file name is UTF-8 encoded.
+         */
+        OUString fileName;
+        OUString mediaType;
+        OUString version;
+        /* If this string contains the value according to
+           css::deployment::Prerequisites or "0". That is, if
+           the value is > 0 then
+           the call to XPackage::checkPrerequisites failed.
+           In this case the extension must not be registered.
+         */
+        OUString failedPrerequisites;
+    };
+
+    typedef std::vector< std::pair< OUString, Data > > Entries;
+
+    ActivePackages();
+
+    explicit ActivePackages(OUString const & url);
+
+    ~ActivePackages();
+
+    bool has(OUString const & id, OUString const & fileName)
+        const;
+
+    bool get(
+        Data * data, OUString const & id,
+        OUString const & fileName) const;
+
+    Entries getEntries() const;
+
+    void put(OUString const & id, Data const & value);
+
+    void erase(OUString const & id, OUString const & fileName);
+
+private:
+    ActivePackages(ActivePackages const &) = delete;
+    ActivePackages& operator =(ActivePackages const &) = delete;
+#if HAVE_FEATURE_EXTENSIONS
+    ::dp_misc::PersistentMap m_map;
+#endif
+};
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/desktop/source/deployment/manager/dp_commandenvironments.cxx b/desktop/source/deployment/manager/dp_commandenvironments.cxx
new file mode 100644
index 000000000..0a25e042f
--- /dev/null
+++ b/desktop/source/deployment/manager/dp_commandenvironments.cxx
@@ -0,0 +1,246 @@
+/* -*- 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/deployment/VersionException.hpp>
+#include <com/sun/star/deployment/LicenseException.hpp>
+#include <com/sun/star/deployment/InstallException.hpp>
+#include <com/sun/star/deployment/DependencyException.hpp>
+#include <com/sun/star/deployment/PlatformException.hpp>
+#include <com/sun/star/task/XInteractionApprove.hpp>
+#include <com/sun/star/task/XInteractionHandler.hpp>
+#include <com/sun/star/ucb/XCommandEnvironment.hpp>
+#include <utility>
+#include "dp_commandenvironments.hxx"
+#include <osl/diagnose.h>
+
+namespace deployment = com::sun::star::deployment;
+namespace task = com::sun::star::task;
+namespace ucb = com::sun::star::ucb;
+namespace uno = com::sun::star::uno;
+
+using ::com::sun::star::uno::Reference;
+
+namespace dp_manager {
+
+BaseCommandEnv::BaseCommandEnv()
+{
+}
+
+BaseCommandEnv::BaseCommandEnv(
+    Reference< task::XInteractionHandler> const & handler)
+    : m_forwardHandler(handler)
+{
+}
+
+BaseCommandEnv::~BaseCommandEnv()
+{
+}
+// XCommandEnvironment
+
+Reference<task::XInteractionHandler> BaseCommandEnv::getInteractionHandler()
+{
+    return this;
+}
+
+
+Reference<ucb::XProgressHandler> BaseCommandEnv::getProgressHandler()
+{
+    return this;
+}
+
+void BaseCommandEnv::handle(
+    Reference< task::XInteractionRequest> const & /*xRequest*/ )
+{
+}
+
+void BaseCommandEnv::handle_(bool approve,
+                             Reference< task::XInteractionRequest> const & xRequest )
+{
+    if (!approve)
+    {
+        //not handled so far -> forwarding
+        if (m_forwardHandler.is())
+            m_forwardHandler->handle(xRequest);
+        else
+            return; //cannot handle
+    }
+    else
+    {
+        // select:
+        uno::Sequence< Reference< task::XInteractionContinuation > > conts(
+            xRequest->getContinuations() );
+        Reference< task::XInteractionContinuation > const * pConts =
+            conts.getConstArray();
+        sal_Int32 len = conts.getLength();
+        for ( sal_Int32 pos = 0; pos < len; ++pos )
+        {
+            if (approve) {
+                Reference< task::XInteractionApprove > xInteractionApprove(
+                    pConts[ pos ], uno::UNO_QUERY );
+                if (xInteractionApprove.is()) {
+                    xInteractionApprove->select();
+                    // don't query again for ongoing continuations:
+                    approve = false;
+                }
+            }
+        }
+    }
+
+}
+
+// XProgressHandler
+void BaseCommandEnv::push( uno::Any const & /*Status*/ )
+{
+}
+
+void BaseCommandEnv::update( uno::Any const & /*Status */)
+{
+}
+
+void BaseCommandEnv::pop()
+{
+}
+
+
+TmpRepositoryCommandEnv::TmpRepositoryCommandEnv()
+{
+}
+
+TmpRepositoryCommandEnv::TmpRepositoryCommandEnv(
+    css::uno::Reference< css::task::XInteractionHandler> const & handler):
+    BaseCommandEnv(handler)
+{
+}
+// XInteractionHandler
+void TmpRepositoryCommandEnv::handle(
+    Reference< task::XInteractionRequest> const & xRequest )
+{
+    uno::Any request( xRequest->getRequest() );
+    OSL_ASSERT( request.getValueTypeClass() == uno::TypeClass_EXCEPTION );
+
+    deployment::VersionException verExc;
+    deployment::LicenseException licExc;
+    deployment::InstallException instExc;
+
+    bool approve = false;
+
+    if ((request >>= verExc)
+        || (request >>= licExc)
+        || (request >>= instExc))
+    {
+        approve = true;
+    }
+
+    handle_(approve, xRequest);
+}
+
+
+LicenseCommandEnv::LicenseCommandEnv(
+    css::uno::Reference< css::task::XInteractionHandler> const & handler,
+    bool bSuppressLicense,
+    OUString repository):
+    BaseCommandEnv(handler), m_repository(std::move(repository)),
+    m_bSuppressLicense(bSuppressLicense)
+{
+}
+// XInteractionHandler
+void LicenseCommandEnv::handle(
+    Reference< task::XInteractionRequest> const & xRequest )
+{
+    uno::Any request( xRequest->getRequest() );
+    OSL_ASSERT( request.getValueTypeClass() == uno::TypeClass_EXCEPTION );
+
+    deployment::LicenseException licExc;
+
+    bool approve = false;
+
+    if (request >>= licExc)
+    {
+        if (m_bSuppressLicense
+            || m_repository == "bundled"
+            || licExc.AcceptBy == "admin")
+        {
+            //always approve in bundled case, because we do not support
+            //showing licenses anyway.
+            //The "admin" already accepted the license when installing the
+            // shared extension
+            approve = true;
+        }
+    }
+
+    handle_(approve, xRequest);
+}
+
+
+NoLicenseCommandEnv::NoLicenseCommandEnv(
+    css::uno::Reference< css::task::XInteractionHandler> const & handler):
+    BaseCommandEnv(handler)
+{
+}
+// XInteractionHandler
+void NoLicenseCommandEnv::handle(
+    Reference< task::XInteractionRequest> const & xRequest )
+{
+    uno::Any request( xRequest->getRequest() );
+    OSL_ASSERT( request.getValueTypeClass() == uno::TypeClass_EXCEPTION );
+
+    deployment::LicenseException licExc;
+
+    bool approve = false;
+
+    if (request >>= licExc)
+    {
+        approve = true;
+    }
+    handle_(approve, xRequest);
+}
+
+SilentCheckPrerequisitesCommandEnv::SilentCheckPrerequisitesCommandEnv()
+{
+}
+
+void SilentCheckPrerequisitesCommandEnv::handle(
+       Reference< task::XInteractionRequest> const & xRequest )
+{
+    uno::Any request( xRequest->getRequest() );
+    OSL_ASSERT( request.getValueTypeClass() == uno::TypeClass_EXCEPTION );
+
+    deployment::LicenseException licExc;
+    deployment::PlatformException platformExc;
+    deployment::DependencyException depExc;
+
+    if (request >>= licExc)
+    {
+        handle_(true, xRequest); // approve = true
+    }
+    else if ((request >>= platformExc)
+             || (request >>= depExc))
+    {
+        m_Exception = request;
+    }
+    else
+    {
+        m_UnknownException = request;
+    }
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/desktop/source/deployment/manager/dp_commandenvironments.hxx b/desktop/source/deployment/manager/dp_commandenvironments.hxx
new file mode 100644
index 000000000..6533d45b4
--- /dev/null
+++ b/desktop/source/deployment/manager/dp_commandenvironments.hxx
@@ -0,0 +1,139 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <cppuhelper/implbase.hxx>
+#include <com/sun/star/task/XInteractionHandler.hpp>
+#include <com/sun/star/task/XInteractionRequest.hpp>
+#include <com/sun/star/ucb/XProgressHandler.hpp>
+#include <com/sun/star/ucb/XCommandEnvironment.hpp>
+
+
+namespace dp_manager {
+
+/**
+   This command environment is to be used when an extension is temporarily
+   stored in the "tmp" repository. It prevents all kind of user interaction.
+ */
+class BaseCommandEnv
+    : public ::cppu::WeakImplHelper< css::ucb::XCommandEnvironment,
+                                      css::task::XInteractionHandler,
+                                      css::ucb::XProgressHandler >
+{
+    css::uno::Reference< css::task::XInteractionHandler> m_forwardHandler;
+protected:
+    void handle_(bool approve,
+                 css::uno::Reference< css::task::XInteractionRequest> const & xRequest );
+public:
+    virtual ~BaseCommandEnv() override;
+    BaseCommandEnv();
+    explicit BaseCommandEnv(
+        css::uno::Reference< css::task::XInteractionHandler> const & handler);
+
+    // XCommandEnvironment
+    virtual css::uno::Reference<css::task::XInteractionHandler > SAL_CALL
+    getInteractionHandler() override;
+    virtual css::uno::Reference<css::ucb::XProgressHandler >
+    SAL_CALL getProgressHandler() override;
+
+    // XInteractionHandler
+    virtual void SAL_CALL handle(
+        css::uno::Reference<css::task::XInteractionRequest > const & xRequest ) override;
+
+    // XProgressHandler
+    virtual void SAL_CALL push( css::uno::Any const & Status ) override;
+    virtual void SAL_CALL update( css::uno::Any const & Status ) override;
+    virtual void SAL_CALL pop() override;
+};
+
+class TmpRepositoryCommandEnv : public BaseCommandEnv
+{
+public:
+    TmpRepositoryCommandEnv();
+    explicit TmpRepositoryCommandEnv(css::uno::Reference< css::task::XInteractionHandler> const & handler);
+
+// XInteractionHandler
+    virtual void SAL_CALL handle(
+        css::uno::Reference<css::task::XInteractionRequest > const & xRequest ) override;
+
+};
+
+/** this class is for use in XPackageManager::synchronize.
+
+    It handles particular license cases.
+ */
+class LicenseCommandEnv : public BaseCommandEnv
+{
+private:
+    OUString m_repository;
+    bool m_bSuppressLicense;
+public:
+    LicenseCommandEnv(
+        css::uno::Reference< css::task::XInteractionHandler> const & handler,
+        bool bSuppressLicense,
+        OUString repository);
+
+// XInteractionHandler
+    virtual void SAL_CALL handle(
+        css::uno::Reference<css::task::XInteractionRequest > const & xRequest ) override;
+
+};
+
+/** this class is for use in XPackageManager::checkPrerequisites
+
+    It always prohibits a license interaction
+ */
+class NoLicenseCommandEnv : public BaseCommandEnv
+{
+
+public:
+    explicit NoLicenseCommandEnv(css::uno::Reference< css::task::XInteractionHandler> const & handler);
+
+// XInteractionHandler
+    virtual void SAL_CALL handle(
+        css::uno::Reference<css::task::XInteractionRequest > const & xRequest ) override;
+
+};
+
+/* For use in XExtensionManager::addExtension in the call to
+   XPackage::checkPrerequisites
+   It prevents all user interactions. The license is always accepted.
+   It remembers if there was a platform or a dependency exception in
+   the member m_bException. if there was any other exception then m_bUnknownException
+   is set.
+
+ */
+class SilentCheckPrerequisitesCommandEnv : public BaseCommandEnv
+{
+public:
+    SilentCheckPrerequisitesCommandEnv();
+    // XInteractionHandler
+    virtual void SAL_CALL handle(
+        css::uno::Reference<css::task::XInteractionRequest > const & xRequest ) override;
+
+    // Set to true if a PlatformException or a DependencyException were handled.
+    css::uno::Any m_Exception;
+    // Set to true if an unknown exception was handled.
+    css::uno::Any m_UnknownException;
+};
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/desktop/source/deployment/manager/dp_extensionmanager.cxx b/desktop/source/deployment/manager/dp_extensionmanager.cxx
new file mode 100644
index 000000000..fc7816f6a
--- /dev/null
+++ b/desktop/source/deployment/manager/dp_extensionmanager.cxx
@@ -0,0 +1,1432 @@
+/* -*- 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 <cppuhelper/compbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <cppuhelper/exc_hlp.hxx>
+#include <rtl/bootstrap.hxx>
+#include <com/sun/star/deployment/DeploymentException.hpp>
+#include <com/sun/star/deployment/XExtensionManager.hpp>
+#include <com/sun/star/deployment/thePackageManagerFactory.hpp>
+#include <com/sun/star/deployment/XPackageManager.hpp>
+#include <com/sun/star/deployment/XPackage.hpp>
+#include <com/sun/star/deployment/InstallException.hpp>
+#include <com/sun/star/deployment/VersionException.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/beans/Optional.hpp>
+#include <com/sun/star/task/XInteractionApprove.hpp>
+#include <com/sun/star/beans/Ambiguous.hpp>
+#include <com/sun/star/ucb/CommandAbortedException.hpp>
+#include <com/sun/star/ucb/CommandFailedException.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <com/sun/star/io/XInputStream.hpp>
+#include <com/sun/star/util/XModifyBroadcaster.hpp>
+#include <comphelper/sequence.hxx>
+#include <utility>
+#include <xmlscript/xml_helper.hxx>
+#include <osl/diagnose.h>
+#include <dp_interact.h>
+#include <dp_misc.h>
+#include <dp_ucb.h>
+#include <dp_identifier.hxx>
+#include <dp_descriptioninfoset.hxx>
+#include "dp_extensionmanager.hxx"
+#include "dp_commandenvironments.hxx"
+#include "dp_properties.hxx"
+
+#include <vector>
+#include <algorithm>
+#include <set>
+#include <string_view>
+
+namespace lang  = com::sun::star::lang;
+namespace task = com::sun::star::task;
+namespace ucb = com::sun::star::ucb;
+namespace uno = com::sun::star::uno;
+namespace beans = com::sun::star::beans;
+namespace util = com::sun::star::util;
+
+using ::com::sun::star::uno::Reference;
+
+namespace {
+
+struct CompIdentifiers
+{
+    bool operator() (std::vector<Reference<css::deployment::XPackage> > const & a,
+                     std::vector<Reference<css::deployment::XPackage> > const & b)
+        {
+            return getName(a).compareTo(getName(b)) < 0;
+        }
+
+    static OUString getName(std::vector<Reference<css::deployment::XPackage> > const & a);
+};
+
+OUString CompIdentifiers::getName(std::vector<Reference<css::deployment::XPackage> > const & a)
+{
+    OSL_ASSERT(a.size() == 3);
+    //get the first non-null reference
+    Reference<css::deployment::XPackage>  extension;
+    for (auto const& elem : a)
+    {
+        if (elem.is())
+        {
+            extension = elem;
+            break;
+        }
+    }
+    OSL_ASSERT(extension.is());
+    return extension->getDisplayName();
+}
+
+void writeLastModified(OUString & url, Reference<ucb::XCommandEnvironment> const & xCmdEnv, Reference< uno::XComponentContext > const & xContext)
+{
+    //Write the lastmodified file
+    try {
+        ::rtl::Bootstrap::expandMacros(url);
+        ::ucbhelper::Content ucbStamp(url, xCmdEnv, xContext);
+        dp_misc::erase_path( url, xCmdEnv );
+        OString stamp("1" );
+        Reference<css::io::XInputStream> xData(
+            ::xmlscript::createInputStream(
+                    reinterpret_cast<sal_Int8 const *>(stamp.getStr()),
+                    stamp.getLength() ) );
+        ucbStamp.writeStream( xData, true /* replace existing */ );
+    }
+    catch(...)
+    {
+        uno::Any exc(::cppu::getCaughtException());
+        throw css::deployment::DeploymentException("Failed to update" + url, nullptr, exc);
+    }
+}
+
+class ExtensionRemoveGuard
+{
+    css::uno::Reference<css::deployment::XPackage> m_extension;
+    css::uno::Reference<css::deployment::XPackageManager> m_xPackageManager;
+
+public:
+    ExtensionRemoveGuard(){};
+    ExtensionRemoveGuard(
+        css::uno::Reference<css::deployment::XPackage> extension,
+        css::uno::Reference<css::deployment::XPackageManager> xPackageManager):
+        m_extension(std::move(extension)), m_xPackageManager(std::move(xPackageManager)) {}
+    ~ExtensionRemoveGuard();
+
+    void set(css::uno::Reference<css::deployment::XPackage> const & extension,
+             css::uno::Reference<css::deployment::XPackageManager> const & xPackageManager) {
+        m_extension = extension;
+        m_xPackageManager = xPackageManager;
+    }
+};
+
+ExtensionRemoveGuard::~ExtensionRemoveGuard()
+{
+    try {
+        OSL_ASSERT(!(m_extension.is() && !m_xPackageManager.is()));
+        if (m_xPackageManager.is() && m_extension.is())
+            m_xPackageManager->removePackage(
+                dp_misc::getIdentifier(m_extension), OUString(),
+                css::uno::Reference<css::task::XAbortChannel>(),
+                css::uno::Reference<css::ucb::XCommandEnvironment>());
+    } catch (...) {
+        OSL_ASSERT(false);
+    }
+}
+
+}
+
+namespace dp_manager {
+
+//ToDo: bundled extension
+ExtensionManager::ExtensionManager( Reference< uno::XComponentContext > const& xContext) :
+    ::cppu::WeakComponentImplHelper< css::deployment::XExtensionManager, css::lang::XServiceInfo >(m_aMutex)
+    , m_xContext(xContext)
+{
+    m_xPackageManagerFactory = css::deployment::thePackageManagerFactory::get(m_xContext);
+    OSL_ASSERT(m_xPackageManagerFactory.is());
+
+    m_repositoryNames.emplace_back("user");
+    m_repositoryNames.emplace_back("shared");
+    m_repositoryNames.emplace_back("bundled");
+}
+
+ExtensionManager::~ExtensionManager()
+{
+}
+
+// XServiceInfo
+OUString ExtensionManager::getImplementationName()
+{
+    return "com.sun.star.comp.deployment.ExtensionManager";
+}
+
+sal_Bool ExtensionManager::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+css::uno::Sequence< OUString > ExtensionManager::getSupportedServiceNames()
+{
+    // a private one:
+    return { "com.sun.star.comp.deployment.ExtensionManager" };
+}
+
+Reference<css::deployment::XPackageManager> ExtensionManager::getUserRepository()
+{
+    return m_xPackageManagerFactory->getPackageManager("user");
+}
+Reference<css::deployment::XPackageManager>  ExtensionManager::getSharedRepository()
+{
+    return m_xPackageManagerFactory->getPackageManager("shared");
+}
+Reference<css::deployment::XPackageManager>  ExtensionManager::getBundledRepository()
+{
+    return m_xPackageManagerFactory->getPackageManager("bundled");
+}
+Reference<css::deployment::XPackageManager>  ExtensionManager::getTmpRepository()
+{
+    return m_xPackageManagerFactory->getPackageManager("tmp");
+}
+Reference<css::deployment::XPackageManager>  ExtensionManager::getBakRepository()
+{
+    return m_xPackageManagerFactory->getPackageManager("bak");
+}
+
+Reference<task::XAbortChannel> ExtensionManager::createAbortChannel()
+{
+    return new dp_misc::AbortChannel;
+}
+
+css::uno::Reference<css::deployment::XPackageManager>
+ExtensionManager::getPackageManager(std::u16string_view repository)
+{
+    Reference<css::deployment::XPackageManager> xPackageManager;
+    if (repository == u"user")
+        xPackageManager = getUserRepository();
+    else if (repository == u"shared")
+        xPackageManager = getSharedRepository();
+    else if (repository == u"bundled")
+        xPackageManager = getBundledRepository();
+    else if (repository == u"tmp")
+        xPackageManager = getTmpRepository();
+    else if (repository == u"bak")
+        xPackageManager = getBakRepository();
+    else
+        throw lang::IllegalArgumentException(
+            "No valid repository name provided.",
+            static_cast<cppu::OWeakObject*>(this), 0);
+    return xPackageManager;
+}
+
+/*
+  Enters the XPackage objects into a map. They must be all from the
+  same repository. The value type of the map is a vector, where each vector
+  represents an extension with a particular identifier. The first member
+  represents the user extension, the second the shared extension and the
+  third the bundled extension.
+ */
+void ExtensionManager::addExtensionsToMap(
+    id2extensions & mapExt,
+    uno::Sequence<Reference<css::deployment::XPackage> > const & seqExt,
+    std::u16string_view repository)
+{
+    //Determine the index in the vector where these extensions are to be
+    //added.
+    int index = 0;
+    for (auto const& repositoryName : m_repositoryNames)
+    {
+        if (repositoryName == repository)
+            break;
+        ++index;
+    }
+
+    for (const Reference<css::deployment::XPackage>& xExtension : seqExt)
+    {
+        OUString id = dp_misc::getIdentifier(xExtension);
+        id2extensions::iterator ivec =  mapExt.find(id);
+        if (ivec == mapExt.end())
+        {
+            std::vector<Reference<css::deployment::XPackage> > vec(3);
+            vec[index] = xExtension;
+            mapExt[id] = vec;
+        }
+        else
+        {
+            ivec->second[index] = xExtension;
+        }
+    }
+}
+
+/*
+   returns a list containing extensions with the same identifier from
+   all repositories (user, shared, bundled). If one repository does not
+   have this extension, then the list contains an empty Reference. The list
+   is ordered according to the priority of the repositories:
+   1. user
+   2. shared
+   3. bundled
+
+   The number of elements is always three, unless the number of repository
+   changes.
+ */
+std::vector<Reference<css::deployment::XPackage> >
+    ExtensionManager::getExtensionsWithSameId(
+        OUString const & identifier, OUString const & fileName)
+
+{
+    std::vector<Reference<css::deployment::XPackage> > extensionList;
+    Reference<css::deployment::XPackageManager> lRepos[] = {
+          getUserRepository(), getSharedRepository(), getBundledRepository() };
+    for (int i(0); i != SAL_N_ELEMENTS(lRepos); ++i)
+    {
+        Reference<css::deployment::XPackage> xPackage;
+        try
+        {
+            xPackage = lRepos[i]->getDeployedPackage(
+                identifier, fileName, Reference<ucb::XCommandEnvironment>());
+        }
+        catch(const lang::IllegalArgumentException &)
+        {
+            // thrown if the extension does not exist in this repository
+        }
+        extensionList.push_back(xPackage);
+    }
+    OSL_ASSERT(extensionList.size() == 3);
+    return extensionList;
+}
+
+uno::Sequence<Reference<css::deployment::XPackage> >
+ExtensionManager::getExtensionsWithSameIdentifier(
+        OUString const & identifier,
+        OUString const & fileName,
+        Reference< ucb::XCommandEnvironment> const & /*xCmdEnv*/ )
+{
+    try
+    {
+        std::vector<Reference<css::deployment::XPackage> > listExtensions =
+            getExtensionsWithSameId(identifier, fileName);
+        bool bHasExtension = false;
+
+        //throw an IllegalArgumentException if there is no extension at all.
+        for (auto const& extension : listExtensions)
+            bHasExtension |= extension.is();
+        if (!bHasExtension)
+            throw lang::IllegalArgumentException(
+                "Could not find extension: " + identifier + ", " + fileName,
+                static_cast<cppu::OWeakObject*>(this), -1);
+
+        return comphelper::containerToSequence(listExtensions);
+    }
+    catch ( const css::deployment::DeploymentException & )
+    {
+        throw;
+    }
+    catch ( const ucb::CommandFailedException & )
+    {
+        throw;
+    }
+    catch (css::uno::RuntimeException &)
+    {
+        throw;
+    }
+    catch (...)
+    {
+        uno::Any exc = ::cppu::getCaughtException();
+        throw css::deployment::DeploymentException(
+            "Extension Manager: exception during getExtensionsWithSameIdentifier",
+            static_cast<OWeakObject*>(this), exc);
+    }
+}
+
+bool ExtensionManager::isUserDisabled(
+    OUString const & identifier, OUString const & fileName)
+{
+    std::vector<Reference<css::deployment::XPackage> > listExtensions;
+
+    try {
+        listExtensions = getExtensionsWithSameId(identifier, fileName);
+    } catch ( const lang::IllegalArgumentException & ) {
+    }
+    OSL_ASSERT(listExtensions.size() == 3);
+
+    return isUserDisabled( ::comphelper::containerToSequence(listExtensions) );
+}
+
+bool ExtensionManager::isUserDisabled(
+    uno::Sequence<Reference<css::deployment::XPackage> > const & seqExtSameId)
+{
+    OSL_ASSERT(seqExtSameId.getLength() == 3);
+    Reference<css::deployment::XPackage> const & userExtension = seqExtSameId[0];
+    if (userExtension.is())
+    {
+        beans::Optional<beans::Ambiguous<sal_Bool> > reg =
+            userExtension->isRegistered(Reference<task::XAbortChannel>(),
+                                        Reference<ucb::XCommandEnvironment>());
+        //If the value is ambiguous, then we assume that the extension
+        //is enabled, but something went wrong during enabling. We do not
+        //automatically disable user extensions.
+        if (reg.IsPresent &&
+            ! reg.Value.IsAmbiguous && ! reg.Value.Value)
+            return true;
+    }
+    return false;
+}
+
+/*
+    This method determines the active extension (XPackage.registerPackage) with a
+    particular identifier.
+
+    The parameter bUserDisabled determines if the user extension is disabled.
+
+    When the user repository contains an extension with the given identifier and
+    it is not disabled by the user, then it is always registered.  Otherwise an
+    extension is only registered when there is no registered extension in one of
+    the repositories with a higher priority. That is, if the extension is from
+    the shared repository and an active extension with the same identifier is in
+    the user repository, then the extension is not registered. Similarly a
+    bundled extension is not registered if there is an active extension with the
+    same identifier in the shared or user repository.
+*/
+void ExtensionManager::activateExtension(
+    OUString const & identifier, OUString const & fileName,
+    bool bUserDisabled,
+    bool bStartup,
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv )
+{
+    std::vector<Reference<css::deployment::XPackage> > listExtensions;
+    try {
+        listExtensions = getExtensionsWithSameId(identifier, fileName);
+    } catch (const lang::IllegalArgumentException &) {
+    }
+    OSL_ASSERT(listExtensions.size() == 3);
+
+    activateExtension(
+        ::comphelper::containerToSequence(listExtensions),
+        bUserDisabled, bStartup, xAbortChannel, xCmdEnv);
+
+    fireModified();
+}
+
+void ExtensionManager::activateExtension(
+    uno::Sequence<Reference<css::deployment::XPackage> > const & seqExt,
+    bool bUserDisabled,
+    bool bStartup,
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv )
+{
+    bool bActive = false;
+    sal_Int32 len = seqExt.getLength();
+    for (sal_Int32 i = 0; i < len; i++)
+    {
+        Reference<css::deployment::XPackage> const & aExt =  seqExt[i];
+        if (aExt.is())
+        {
+            //get the registration value of the current iteration
+            beans::Optional<beans::Ambiguous<sal_Bool> > optReg =
+                aExt->isRegistered(xAbortChannel, xCmdEnv);
+            //If nothing can be registered then break
+            if (!optReg.IsPresent)
+                break;
+
+            //Check if this is a disabled user extension,
+            if (i == 0 && bUserDisabled)
+            {
+                   aExt->revokePackage(bStartup, xAbortChannel, xCmdEnv);
+                   continue;
+            }
+
+            //If we have already determined an active extension then we must
+            //make sure to unregister all extensions with the same id in
+            //repositories with a lower priority
+            if (bActive)
+            {
+                aExt->revokePackage(bStartup, xAbortChannel, xCmdEnv);
+            }
+            else
+            {
+                //This is the first extension in the ordered list, which becomes
+                //the active extension
+                bActive = true;
+                //Register if not already done.
+                //reregister if the value is ambiguous, which indicates that
+                //something went wrong during last registration.
+                aExt->registerPackage(bStartup, xAbortChannel, xCmdEnv);
+            }
+        }
+    }
+}
+
+Reference<css::deployment::XPackage> ExtensionManager::backupExtension(
+    OUString const & identifier, OUString const & fileName,
+    Reference<css::deployment::XPackageManager> const & xPackageManager,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv )
+{
+    Reference<css::deployment::XPackage> xBackup;
+    Reference<ucb::XCommandEnvironment> tmpCmdEnv(
+        new TmpRepositoryCommandEnv(xCmdEnv->getInteractionHandler()));
+    Reference<css::deployment::XPackage> xOldExtension = xPackageManager->getDeployedPackage(
+            identifier, fileName, tmpCmdEnv);
+
+    if (xOldExtension.is())
+    {
+        xBackup = getTmpRepository()->addPackage(
+            xOldExtension->getURL(), uno::Sequence<beans::NamedValue>(),
+            OUString(), Reference<task::XAbortChannel>(), tmpCmdEnv);
+
+        OSL_ENSURE(xBackup.is(), "Failed to backup extension");
+    }
+    return xBackup;
+}
+
+//The supported package types are actually determined by the registry. However
+//creating a registry
+//(desktop/source/deployment/registry/dp_registry.cxx:PackageRegistryImpl) will
+//create all the backends, so that the registry can obtain from them the package
+//types. Creating the registry will also set up the registry folder containing
+//all the subfolders for the respective backends.
+//Because all repositories support the same backends, we can just delegate this
+//call to one of the repositories.
+uno::Sequence< Reference<css::deployment::XPackageTypeInfo> >
+ExtensionManager::getSupportedPackageTypes()
+{
+    return getUserRepository()->getSupportedPackageTypes();
+}
+//Do some necessary checks and user interaction. This function does not
+//acquire the extension manager mutex and that mutex must not be acquired
+//when this function is called. doChecksForAddExtension does  synchronous
+//user interactions which may require acquiring the solar mutex.
+//Returns true if the extension can be installed.
+bool ExtensionManager::doChecksForAddExtension(
+    Reference<css::deployment::XPackageManager> const & xPackageMgr,
+    uno::Sequence<beans::NamedValue> const & properties,
+    css::uno::Reference<css::deployment::XPackage> const & xTmpExtension,
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv,
+    Reference<css::deployment::XPackage> & out_existingExtension )
+{
+    try
+    {
+        Reference<css::deployment::XPackage> xOldExtension;
+        const OUString sIdentifier = dp_misc::getIdentifier(xTmpExtension);
+        const OUString sFileName = xTmpExtension->getName();
+        const OUString sDisplayName = xTmpExtension->getDisplayName();
+        const OUString sVersion = xTmpExtension->getVersion();
+
+        try
+        {
+            xOldExtension = xPackageMgr->getDeployedPackage(
+                sIdentifier, sFileName, xCmdEnv);
+            out_existingExtension = xOldExtension;
+        }
+        catch (const lang::IllegalArgumentException &)
+        {
+        }
+        bool bCanInstall = false;
+
+        //This part is not guarded against other threads removing, adding, disabling ...
+        //etc. the same extension.
+        //checkInstall is safe because it notifies the user if the extension is not yet
+        //installed in the same repository. Because addExtension has its own guard
+        //(m_addMutex), another thread cannot add the extension in the meantime.
+        //checkUpdate is called if the same extension exists in the same
+        //repository. The user is asked if they want to replace it.  Another
+        //thread
+        //could already remove the extension. So asking the user was not
+        //necessary. No harm is done. The other thread may also ask the user
+        //if he wants to remove the extension. This depends on the
+        //XCommandEnvironment which it passes to removeExtension.
+        if (xOldExtension.is())
+        {
+            //throws a CommandFailedException if the user cancels
+            //the action.
+            checkUpdate(sVersion, sDisplayName,xOldExtension, xCmdEnv);
+        }
+        else
+        {
+            //throws a CommandFailedException if the user cancels
+            //the action.
+            checkInstall(sDisplayName, xCmdEnv);
+        }
+        //Prevent showing the license if requested.
+        Reference<ucb::XCommandEnvironment> _xCmdEnv(xCmdEnv);
+        ExtensionProperties props(std::u16string_view(), properties, Reference<ucb::XCommandEnvironment>(), m_xContext);
+
+        dp_misc::DescriptionInfoset info(dp_misc::getDescriptionInfoset(xTmpExtension->getURL()));
+        const ::std::optional<dp_misc::SimpleLicenseAttributes> licenseAttributes =
+            info.getSimpleLicenseAttributes();
+
+        if (licenseAttributes && licenseAttributes->suppressIfRequired
+            && props.isSuppressedLicense())
+            _xCmdEnv.set(new NoLicenseCommandEnv(xCmdEnv->getInteractionHandler()));
+
+        bCanInstall = xTmpExtension->checkPrerequisites(
+            xAbortChannel, _xCmdEnv, xOldExtension.is() || props.isExtensionUpdate()) == 0;
+
+        return bCanInstall;
+    }
+    catch ( const css::deployment::DeploymentException& ) {
+        throw;
+    } catch ( const ucb::CommandFailedException & ) {
+        throw;
+    } catch ( const ucb::CommandAbortedException & ) {
+        throw;
+    } catch (const lang::IllegalArgumentException &) {
+        throw;
+    } catch (const uno::RuntimeException &) {
+        throw;
+    } catch (const uno::Exception &) {
+        uno::Any excOccurred = ::cppu::getCaughtException();
+        css::deployment::DeploymentException exc(
+            "Extension Manager: exception in doChecksForAddExtension",
+            static_cast<OWeakObject*>(this), excOccurred);
+        throw exc;
+    } catch (...) {
+        throw uno::RuntimeException(
+            "Extension Manager: unexpected exception in doChecksForAddExtension",
+            static_cast<OWeakObject*>(this));
+    }
+}
+
+// Only add to shared and user repository
+Reference<css::deployment::XPackage> ExtensionManager::addExtension(
+    OUString const & url, uno::Sequence<beans::NamedValue> const & properties,
+    OUString const & repository,
+        Reference<task::XAbortChannel> const & xAbortChannel,
+        Reference<ucb::XCommandEnvironment> const & xCmdEnv )
+{
+    Reference<css::deployment::XPackage> xNewExtension;
+    //Determine the repository to use
+    Reference<css::deployment::XPackageManager> xPackageManager;
+    if (repository == "user")
+        xPackageManager = getUserRepository();
+    else if (repository == "shared")
+        xPackageManager = getSharedRepository();
+    else
+        throw lang::IllegalArgumentException(
+            "No valid repository name provided.",
+            static_cast<cppu::OWeakObject*>(this), 0);
+    //We must make sure that the xTmpExtension is not create twice, because this
+    //would remove the first one.
+    ::osl::MutexGuard addGuard(m_addMutex);
+
+    Reference<css::deployment::XPackageManager> xTmpRepository(getTmpRepository());
+        // make sure xTmpRepository is alive as long as xTmpExtension is; as
+        // the "tmp" manager is only held weakly by m_xPackageManagerFactory, it
+        // could otherwise be disposed early, which would in turn dispose
+        // xTmpExtension's PackageRegistryBackend behind its back
+    Reference<css::deployment::XPackage> xTmpExtension(
+        xTmpRepository->addPackage(
+            url, uno::Sequence<beans::NamedValue>(), OUString(), xAbortChannel,
+            new TmpRepositoryCommandEnv()));
+    if (!xTmpExtension.is()) {
+        throw css::deployment::DeploymentException(
+            ("Extension Manager: Failed to create temporary XPackage for url: "
+             + url),
+            static_cast<OWeakObject*>(this), uno::Any());
+    }
+
+    //Make sure the extension is removed from the tmp repository in case
+    //of an exception
+    ExtensionRemoveGuard tmpExtensionRemoveGuard(xTmpExtension, getTmpRepository());
+    ExtensionRemoveGuard bakExtensionRemoveGuard;
+    const OUString sIdentifier = dp_misc::getIdentifier(xTmpExtension);
+    const OUString sFileName = xTmpExtension->getName();
+    Reference<css::deployment::XPackage> xOldExtension;
+    Reference<css::deployment::XPackage> xExtensionBackup;
+
+    uno::Any excOccurred2;
+    bool bCanInstall = doChecksForAddExtension(
+        xPackageManager,
+        properties,
+        xTmpExtension,
+        xAbortChannel,
+        xCmdEnv,
+        xOldExtension );
+
+    {
+        bool bUserDisabled = false;
+        // In this guarded section (getMutex) we must not use the argument xCmdEnv
+        // because it may bring up dialogs (XInteractionHandler::handle) this
+        // may potentially deadlock. See issue
+        // http://qa.openoffice.org/issues/show_bug.cgi?id=114933
+        // By not providing xCmdEnv the underlying APIs will throw an exception if
+        // the XInteractionRequest cannot be handled.
+        ::osl::MutexGuard guard(m_aMutex);
+
+        if (bCanInstall)
+        {
+            try
+            {
+                bUserDisabled = isUserDisabled(sIdentifier, sFileName);
+                if (xOldExtension.is())
+                {
+                    try
+                    {
+                        xOldExtension->revokePackage(
+                            false, xAbortChannel, Reference<ucb::XCommandEnvironment>());
+                        //save the old user extension in case the user aborts
+                        xExtensionBackup = getBakRepository()->importExtension(
+                            xOldExtension, Reference<task::XAbortChannel>(),
+                            Reference<ucb::XCommandEnvironment>());
+                        bakExtensionRemoveGuard.set(xExtensionBackup, getBakRepository());
+                    }
+                    catch (const lang::DisposedException &)
+                    {
+                        //Another thread might have removed the extension meanwhile
+                    }
+                }
+                //check again dependencies but prevent user interaction,
+                //We can disregard the license, because the user must have already
+                //accepted it, when we called checkPrerequisites the first time
+                rtl::Reference<SilentCheckPrerequisitesCommandEnv> pSilentCommandEnv =
+                    new SilentCheckPrerequisitesCommandEnv();
+
+                sal_Int32 failedPrereq = xTmpExtension->checkPrerequisites(
+                    xAbortChannel, pSilentCommandEnv, true);
+                if (failedPrereq == 0)
+                {
+                    xNewExtension = xPackageManager->addPackage(
+                        url, properties, OUString(), xAbortChannel,
+                        Reference<ucb::XCommandEnvironment>());
+                    //If we add a user extension and there is already one which was
+                    //disabled by a user, then the newly installed one is enabled. If we
+                    //add to another repository then the user extension remains
+                    //disabled.
+                    bool bUserDisabled2 = bUserDisabled;
+                    if (repository == "user")
+                        bUserDisabled2 = false;
+
+                    // pass the two values via variables to workaround gcc-4.3.4 specific bug (bnc#655912)
+                    OUString sNewExtensionIdentifier = dp_misc::getIdentifier(xNewExtension);
+                    OUString sNewExtensionFileName = xNewExtension->getName();
+
+                    activateExtension(
+                        sNewExtensionIdentifier, sNewExtensionFileName,
+                        bUserDisabled2, false, xAbortChannel,
+                        Reference<ucb::XCommandEnvironment>());
+
+                    // if reached this section,
+                    // this means that either the licensedialog.ui didn't popup,
+                    // or user accepted the license agreement. otherwise
+                    // no need to call fireModified() because user declined
+                    // the license agreement therefore no change made.
+                    try
+                    {
+                        fireModified();
+
+                    }catch ( const css::deployment::DeploymentException& ) {
+                        throw;
+                    } catch ( const ucb::CommandFailedException & ) {
+                        throw;
+                    } catch ( const ucb::CommandAbortedException & ) {
+                        throw;
+                    } catch (const lang::IllegalArgumentException &) {
+                        throw;
+                    } catch (const uno::RuntimeException &) {
+                        throw;
+                    } catch (const uno::Exception &) {
+                        uno::Any excOccurred = ::cppu::getCaughtException();
+                        css::deployment::DeploymentException exc(
+                            "Extension Manager: Exception on fireModified() "
+                            "in the scope of 'if (failedPrereq == 0)'",
+                            static_cast<OWeakObject*>(this), excOccurred);
+                        throw exc;
+                    } catch (...) {
+                        throw uno::RuntimeException(
+                            "Extension Manager: RuntimeException on fireModified() "
+                            "in the scope of 'if (failedPrereq == 0)'",
+                            static_cast<OWeakObject*>(this));
+                    }
+                }
+                else
+                {
+                    if (pSilentCommandEnv->m_Exception.hasValue())
+                        ::cppu::throwException(pSilentCommandEnv->m_Exception);
+                    else if ( pSilentCommandEnv->m_UnknownException.hasValue())
+                        ::cppu::throwException(pSilentCommandEnv->m_UnknownException);
+                    else
+                        throw css::deployment::DeploymentException (
+                            "Extension Manager: exception during addExtension, ckeckPrerequisites failed",
+                            static_cast<OWeakObject*>(this), uno::Any());
+                }
+            }
+            catch ( const css::deployment::DeploymentException& ) {
+                excOccurred2 = ::cppu::getCaughtException();
+            } catch ( const ucb::CommandFailedException & ) {
+                excOccurred2 = ::cppu::getCaughtException();
+            } catch ( const ucb::CommandAbortedException & ) {
+                excOccurred2 = ::cppu::getCaughtException();
+            } catch (const lang::IllegalArgumentException &) {
+                excOccurred2 = ::cppu::getCaughtException();
+            } catch (const uno::RuntimeException &) {
+                excOccurred2 = ::cppu::getCaughtException();
+            } catch (...) {
+                excOccurred2 = ::cppu::getCaughtException();
+                css::deployment::DeploymentException exc(
+                    "Extension Manager: exception during addExtension, url: "
+                    + url, static_cast<OWeakObject*>(this), excOccurred2);
+                excOccurred2 <<= exc;
+            }
+        }
+
+        if (excOccurred2.hasValue())
+        {
+            //It does not matter what exception is thrown. We try to
+            //recover the original status.
+            //If the user aborted installation then a ucb::CommandAbortedException
+            //is thrown.
+            //Use a private AbortChannel so the user cannot interrupt.
+            try
+            {
+                if (xExtensionBackup.is())
+                {
+                    xPackageManager->importExtension(
+                            xExtensionBackup, Reference<task::XAbortChannel>(),
+                            Reference<ucb::XCommandEnvironment>());
+                }
+                activateExtension(
+                    sIdentifier, sFileName, bUserDisabled, false,
+                    Reference<task::XAbortChannel>(), Reference<ucb::XCommandEnvironment>());
+            }
+            catch (...)
+            {
+            }
+            ::cppu::throwException(excOccurred2);
+        }
+    } // leaving the guarded section (getMutex())
+
+    return xNewExtension;
+}
+
+void ExtensionManager::removeExtension(
+    OUString const & identifier, OUString const & fileName,
+    OUString const & repository,
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv )
+{
+    uno::Any excOccurred1;
+    Reference<css::deployment::XPackage> xExtensionBackup;
+    Reference<css::deployment::XPackageManager> xPackageManager;
+    bool bUserDisabled = false;
+    ::osl::MutexGuard guard(m_aMutex);
+    try
+    {
+//Determine the repository to use
+        if (repository == "user")
+            xPackageManager = getUserRepository();
+        else if (repository == "shared")
+            xPackageManager = getSharedRepository();
+        else
+            throw lang::IllegalArgumentException(
+                "No valid repository name provided.",
+                static_cast<cppu::OWeakObject*>(this), 0);
+
+        bUserDisabled = isUserDisabled(identifier, fileName);
+        //Backup the extension, in case the user cancels the action
+        xExtensionBackup = backupExtension(
+            identifier, fileName, xPackageManager, xCmdEnv);
+
+        //revoke the extension if it is active
+        Reference<css::deployment::XPackage> xOldExtension =
+            xPackageManager->getDeployedPackage(
+                identifier, fileName, xCmdEnv);
+        xOldExtension->revokePackage(false, xAbortChannel, xCmdEnv);
+
+        xPackageManager->removePackage(
+            identifier, fileName, xAbortChannel, xCmdEnv);
+        activateExtension(identifier, fileName, bUserDisabled, false,
+                          xAbortChannel, xCmdEnv);
+        fireModified();
+    }
+    catch ( const css::deployment::DeploymentException& ) {
+        excOccurred1 = ::cppu::getCaughtException();
+    } catch ( const ucb::CommandFailedException & ) {
+        excOccurred1 = ::cppu::getCaughtException();
+    } catch ( const ucb::CommandAbortedException & ) {
+        excOccurred1 = ::cppu::getCaughtException();
+    } catch (const lang::IllegalArgumentException &) {
+        excOccurred1 = ::cppu::getCaughtException();
+    } catch (const uno::RuntimeException &) {
+        excOccurred1 = ::cppu::getCaughtException();
+    } catch (...) {
+        excOccurred1 = ::cppu::getCaughtException();
+        css::deployment::DeploymentException exc(
+            "Extension Manager: exception during removeExtension",
+            static_cast<OWeakObject*>(this), excOccurred1);
+        excOccurred1 <<= exc;
+    }
+
+    if (excOccurred1.hasValue())
+    {
+        //User aborted installation, restore the previous situation.
+        //Use a private AbortChannel so the user cannot interrupt.
+        try
+        {
+            Reference<ucb::XCommandEnvironment> tmpCmdEnv(
+                new TmpRepositoryCommandEnv(xCmdEnv->getInteractionHandler()));
+            if (xExtensionBackup.is())
+            {
+                xPackageManager->importExtension(
+                        xExtensionBackup, Reference<task::XAbortChannel>(),
+                        tmpCmdEnv);
+                activateExtension(
+                    identifier, fileName, bUserDisabled, false,
+                    Reference<task::XAbortChannel>(),
+                    tmpCmdEnv);
+
+                getTmpRepository()->removePackage(
+                    dp_misc::getIdentifier(xExtensionBackup),
+                    xExtensionBackup->getName(), xAbortChannel, xCmdEnv);
+                fireModified();
+            }
+        }
+        catch (...)
+        {
+        }
+        ::cppu::throwException(excOccurred1);
+    }
+
+    if (xExtensionBackup.is())
+        getTmpRepository()->removePackage(
+            dp_misc::getIdentifier(xExtensionBackup),
+            xExtensionBackup->getName(), xAbortChannel, xCmdEnv);
+}
+
+// Only enable extensions from shared and user repository
+void ExtensionManager::enableExtension(
+    Reference<css::deployment::XPackage> const & extension,
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv)
+{
+    ::osl::MutexGuard guard(m_aMutex);
+    bool bUserDisabled = false;
+    uno::Any excOccurred;
+    try
+    {
+        if (!extension.is())
+            return;
+        OUString repository = extension->getRepositoryName();
+        if (repository != "user")
+            throw lang::IllegalArgumentException(
+                "No valid repository name provided.",
+                static_cast<cppu::OWeakObject*>(this), 0);
+
+        bUserDisabled = isUserDisabled(dp_misc::getIdentifier(extension),
+                                       extension->getName());
+
+        activateExtension(dp_misc::getIdentifier(extension),
+                          extension->getName(), false, false,
+                          xAbortChannel, xCmdEnv);
+    }
+    catch ( const css::deployment::DeploymentException& ) {
+        excOccurred = ::cppu::getCaughtException();
+    } catch ( const ucb::CommandFailedException & ) {
+        excOccurred = ::cppu::getCaughtException();
+    } catch ( const ucb::CommandAbortedException & ) {
+        excOccurred = ::cppu::getCaughtException();
+    } catch (const lang::IllegalArgumentException &) {
+        excOccurred = ::cppu::getCaughtException();
+    } catch (const uno::RuntimeException &) {
+        excOccurred = ::cppu::getCaughtException();
+    } catch (...) {
+        excOccurred = ::cppu::getCaughtException();
+        css::deployment::DeploymentException exc(
+            "Extension Manager: exception during enableExtension",
+            static_cast<OWeakObject*>(this), excOccurred);
+        excOccurred <<= exc;
+    }
+
+    if (!excOccurred.hasValue())
+        return;
+
+    try
+    {
+        activateExtension(dp_misc::getIdentifier(extension),
+                          extension->getName(), bUserDisabled, false,
+                          xAbortChannel, xCmdEnv);
+    }
+    catch (...)
+    {
+    }
+    ::cppu::throwException(excOccurred);
+}
+
+sal_Int32 ExtensionManager::checkPrerequisitesAndEnable(
+    Reference<css::deployment::XPackage> const & extension,
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv)
+{
+    try
+    {
+        if (!extension.is())
+            return 0;
+        ::osl::MutexGuard guard(m_aMutex);
+        sal_Int32 ret = 0;
+        Reference<css::deployment::XPackageManager> mgr =
+            getPackageManager(extension->getRepositoryName());
+        ret = mgr->checkPrerequisites(extension, xAbortChannel, xCmdEnv);
+        if (ret)
+        {
+            //There are some unfulfilled prerequisites, try to revoke
+            extension->revokePackage(false, xAbortChannel, xCmdEnv);
+        }
+        const OUString id(dp_misc::getIdentifier(extension));
+        activateExtension(id, extension->getName(),
+                          isUserDisabled(id, extension->getName()), false,
+                          xAbortChannel, xCmdEnv);
+        return ret;
+    }
+    catch ( const css::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();
+        css::deployment::DeploymentException exc(
+            "Extension Manager: exception during disableExtension",
+            static_cast<OWeakObject*>(this), excOccurred);
+        throw exc;
+    }
+}
+
+void ExtensionManager::disableExtension(
+    Reference<css::deployment::XPackage> const & extension,
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv )
+{
+    ::osl::MutexGuard guard(m_aMutex);
+    uno::Any excOccurred;
+    bool bUserDisabled = false;
+    try
+    {
+        if (!extension.is())
+            return;
+        const OUString repository( extension->getRepositoryName());
+        if (repository != "user")
+            throw lang::IllegalArgumentException(
+                "No valid repository name provided.",
+                static_cast<cppu::OWeakObject*>(this), 0);
+
+        const OUString id(dp_misc::getIdentifier(extension));
+        bUserDisabled = isUserDisabled(id, extension->getName());
+
+        activateExtension(id, extension->getName(), true, false,
+                          xAbortChannel, xCmdEnv);
+    }
+    catch ( const css::deployment::DeploymentException& ) {
+        excOccurred = ::cppu::getCaughtException();
+    } catch ( const ucb::CommandFailedException & ) {
+        excOccurred = ::cppu::getCaughtException();
+    } catch ( const ucb::CommandAbortedException & ) {
+        excOccurred = ::cppu::getCaughtException();
+    } catch (const lang::IllegalArgumentException &) {
+        excOccurred = ::cppu::getCaughtException();
+    } catch (const uno::RuntimeException &) {
+        excOccurred = ::cppu::getCaughtException();
+    } catch (...) {
+        excOccurred = ::cppu::getCaughtException();
+        css::deployment::DeploymentException exc(
+            "Extension Manager: exception during disableExtension",
+            static_cast<OWeakObject*>(this), excOccurred);
+        excOccurred <<= exc;
+    }
+
+    if (!excOccurred.hasValue())
+        return;
+
+    try
+    {
+        activateExtension(dp_misc::getIdentifier(extension),
+                          extension->getName(), bUserDisabled, false,
+                          xAbortChannel, xCmdEnv);
+    }
+    catch (...)
+    {
+    }
+    ::cppu::throwException(excOccurred);
+}
+
+uno::Sequence< Reference<css::deployment::XPackage> >
+    ExtensionManager::getDeployedExtensions(
+    OUString const & repository,
+    Reference<task::XAbortChannel> const &xAbort,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv )
+{
+    return getPackageManager(repository)->getDeployedPackages(
+        xAbort, xCmdEnv);
+}
+
+Reference<css::deployment::XPackage>
+    ExtensionManager::getDeployedExtension(
+    OUString const & repository,
+    OUString const & identifier,
+    OUString const & filename,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv )
+{
+    return getPackageManager(repository)->getDeployedPackage(
+        identifier, filename, xCmdEnv);
+}
+
+uno::Sequence< uno::Sequence<Reference<css::deployment::XPackage> > >
+    ExtensionManager::getAllExtensions(
+    Reference<task::XAbortChannel> const & xAbort,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv )
+{
+    try
+    {
+        id2extensions mapExt;
+
+        uno::Sequence<Reference<css::deployment::XPackage> > userExt =
+            getUserRepository()->getDeployedPackages(xAbort, xCmdEnv);
+        addExtensionsToMap(mapExt, userExt, u"user");
+        uno::Sequence<Reference<css::deployment::XPackage> > sharedExt =
+            getSharedRepository()->getDeployedPackages(xAbort, xCmdEnv);
+        addExtensionsToMap(mapExt, sharedExt, u"shared");
+        uno::Sequence<Reference<css::deployment::XPackage> > bundledExt =
+            getBundledRepository()->getDeployedPackages(xAbort, xCmdEnv);
+        addExtensionsToMap(mapExt, bundledExt, u"bundled");
+
+        // Create the tmp repository to trigger its clean up (deletion
+        // of old temporary data.)
+        getTmpRepository();
+
+        //copy the values of the map to a vector for sorting
+        std::vector< std::vector<Reference<css::deployment::XPackage> > >
+              vecExtensions;
+        for (auto const& elem : mapExt)
+            vecExtensions.push_back(elem.second);
+
+        //sort the element according to the identifier
+        std::sort(vecExtensions.begin(), vecExtensions.end(), CompIdentifiers());
+
+        sal_Int32 j = 0;
+        uno::Sequence< uno::Sequence<Reference<css::deployment::XPackage> > > seqSeq(vecExtensions.size());
+        auto seqSeqRange = asNonConstRange(seqSeq);
+        for (auto const& elem : vecExtensions)
+        {
+            seqSeqRange[j++] = comphelper::containerToSequence(elem);
+        }
+        return seqSeq;
+
+    } catch ( const css::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 exc = ::cppu::getCaughtException();
+        throw css::deployment::DeploymentException(
+            "Extension Manager: exception during enableExtension",
+            static_cast<OWeakObject*>(this), exc);
+   }
+}
+
+// Only to be called from unopkg or soffice bootstrap (with force=true in the
+// latter case):
+void ExtensionManager::reinstallDeployedExtensions(
+    sal_Bool force, OUString const & repository,
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv )
+{
+    try
+    {
+        Reference<css::deployment::XPackageManager>
+            xPackageManager = getPackageManager(repository);
+
+        std::set< OUString > disabledExts;
+        {
+            const uno::Sequence< Reference<css::deployment::XPackage> > extensions(
+                xPackageManager->getDeployedPackages(xAbortChannel, xCmdEnv));
+            for ( const Reference<css::deployment::XPackage>& package : extensions )
+            {
+                try
+                {
+                    beans::Optional< beans::Ambiguous< sal_Bool > > registered(
+                        package->isRegistered(xAbortChannel, xCmdEnv));
+                    if (registered.IsPresent &&
+                        !(registered.Value.IsAmbiguous ||
+                          registered.Value.Value))
+                    {
+                        const OUString id = dp_misc::getIdentifier(package);
+                        OSL_ASSERT(!id.isEmpty());
+                        disabledExts.insert(id);
+                    }
+                }
+                catch (const lang::DisposedException &)
+                {
+                }
+            }
+        }
+
+        ::osl::MutexGuard guard(m_aMutex);
+        xPackageManager->reinstallDeployedPackages(
+            force, xAbortChannel, xCmdEnv);
+        //We must sync here, otherwise we will get exceptions when extensions
+        //are removed.
+        dp_misc::syncRepositories(force, xCmdEnv);
+        const uno::Sequence< Reference<css::deployment::XPackage> > extensions(
+            xPackageManager->getDeployedPackages(xAbortChannel, xCmdEnv));
+
+        for ( const Reference<css::deployment::XPackage>& package : extensions )
+        {
+            try
+            {
+                const OUString id =  dp_misc::getIdentifier(package);
+                const OUString fileName = package->getName();
+                OSL_ASSERT(!id.isEmpty());
+                activateExtension(
+                    id, fileName, disabledExts.find(id) != disabledExts.end(),
+                    true, xAbortChannel, xCmdEnv );
+            }
+            catch (const lang::DisposedException &)
+            {
+            }
+        }
+    } catch ( const css::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 exc = ::cppu::getCaughtException();
+        throw css::deployment::DeploymentException(
+            "Extension Manager: exception during enableExtension",
+            static_cast<OWeakObject*>(this), exc);
+    }
+}
+
+sal_Bool ExtensionManager::synchronize(
+    Reference<task::XAbortChannel> const & xAbortChannel,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv )
+{
+    try
+    {
+        ::osl::MutexGuard guard(m_aMutex);
+        OUString sSynchronizingShared(StrSyncRepository());
+        sSynchronizingShared = sSynchronizingShared.replaceAll("%NAME", "shared");
+        dp_misc::ProgressLevel progressShared(xCmdEnv, sSynchronizingShared);
+        bool bModified = getSharedRepository()->synchronize(xAbortChannel, xCmdEnv);
+        progressShared.update("\n\n");
+
+        OUString sSynchronizingBundled(StrSyncRepository());
+        sSynchronizingBundled = sSynchronizingBundled.replaceAll("%NAME", "bundled");
+        dp_misc::ProgressLevel progressBundled(xCmdEnv, sSynchronizingBundled);
+        bModified |= static_cast<bool>(getBundledRepository()->synchronize(xAbortChannel, xCmdEnv));
+        progressBundled.update("\n\n");
+
+        //Always determine the active extension.
+        //TODO: Is this still necessary?  (It used to be necessary for the
+        // first-start optimization:  The setup created the registration data
+        // for the bundled extensions (share/prereg/bundled) which was copied to
+        // the user installation when a user started OOo for the first time
+        // after running setup.  All bundled extensions were registered at that
+        // moment.  However, extensions with the same identifier could be in the
+        // shared or user repository, in which case the respective bundled
+        // extensions had to be revoked.)
+        try
+        {
+            const uno::Sequence<uno::Sequence<Reference<css::deployment::XPackage> > >
+                seqSeqExt = getAllExtensions(xAbortChannel, xCmdEnv);
+            for (uno::Sequence<Reference<css::deployment::XPackage> > const & seqExt : seqSeqExt)
+            {
+                activateExtension(seqExt, isUserDisabled(seqExt), true,
+                                  xAbortChannel, xCmdEnv);
+            }
+        }
+        catch (...)
+        {
+            //We catch the exception, so we can write the lastmodified file
+            //so we will no repeat this every time OOo starts.
+            OSL_FAIL("Extensions Manager: synchronize");
+        }
+        OUString lastSyncBundled("$BUNDLED_EXTENSIONS_USER/lastsynchronized");
+        writeLastModified(lastSyncBundled, xCmdEnv, m_xContext);
+        OUString lastSyncShared("$SHARED_EXTENSIONS_USER/lastsynchronized");
+        writeLastModified(lastSyncShared, xCmdEnv, m_xContext);
+        return bModified;
+    } catch ( const css::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 exc = ::cppu::getCaughtException();
+        throw css::deployment::DeploymentException(
+            "Extension Manager: exception in synchronize",
+            static_cast<OWeakObject*>(this), exc);
+    }
+}
+
+// Notify the user when a new extension is to be installed. This is only the
+// case when one uses the system integration to install an extension (double
+// clicking on .oxt file etc.)). The function must only be called if there is no
+// extension with the same identifier already deployed. Then the checkUpdate
+// function will inform the user that the extension is about to be installed In
+// case the user cancels the installation a CommandFailed exception is
+// thrown.
+void ExtensionManager::checkInstall(
+    OUString const & displayName,
+    Reference<ucb::XCommandEnvironment> const & cmdEnv)
+{
+        uno::Any request(
+            css::deployment::InstallException(
+                "Extension " + displayName +
+                " is about to be installed.",
+                static_cast<OWeakObject *>(this), displayName));
+        bool approve = false, abort = false;
+        if (! dp_misc::interactContinuation(
+                request, cppu::UnoType<task::XInteractionApprove>::get(),
+                cmdEnv, &approve, &abort ))
+        {
+            OSL_ASSERT( !approve && !abort );
+            throw css::deployment::DeploymentException(
+                DpResId(RID_STR_ERROR_WHILE_ADDING) + displayName,
+                static_cast<OWeakObject *>(this), request );
+        }
+        if (abort || !approve)
+            throw ucb::CommandFailedException(
+                DpResId(RID_STR_ERROR_WHILE_ADDING) + displayName,
+                static_cast<OWeakObject *>(this), request );
+}
+
+/* The function will make the user interaction in case there is an extension
+installed with the same id. This function may only be called if there is already
+an extension.
+*/
+void ExtensionManager::checkUpdate(
+    OUString const & newVersion,
+    OUString const & newDisplayName,
+    Reference<css::deployment::XPackage> const & oldExtension,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv )
+{
+    // package already deployed, interact --force:
+    uno::Any request(
+        (css::deployment::VersionException(
+            DpResId(
+                RID_STR_PACKAGE_ALREADY_ADDED ) + newDisplayName,
+            static_cast<OWeakObject *>(this), newVersion, newDisplayName,
+            oldExtension ) ) );
+    bool replace = false, abort = false;
+    if (! dp_misc::interactContinuation(
+            request, cppu::UnoType<task::XInteractionApprove>::get(),
+            xCmdEnv, &replace, &abort )) {
+        OSL_ASSERT( !replace && !abort );
+        throw css::deployment::DeploymentException(
+            DpResId(
+                RID_STR_ERROR_WHILE_ADDING) + newDisplayName,
+            static_cast<OWeakObject *>(this), request );
+    }
+    if (abort || !replace)
+        throw ucb::CommandFailedException(
+            DpResId(
+                RID_STR_PACKAGE_ALREADY_ADDED) + newDisplayName,
+            static_cast<OWeakObject *>(this), request );
+}
+
+uno::Sequence<Reference<css::deployment::XPackage> > SAL_CALL
+ExtensionManager::getExtensionsWithUnacceptedLicenses(
+        OUString const & repository,
+        Reference<ucb::XCommandEnvironment> const & xCmdEnv)
+{
+    Reference<css::deployment::XPackageManager>
+        xPackageManager = getPackageManager(repository);
+    ::osl::MutexGuard guard(m_aMutex);
+    return xPackageManager->getExtensionsWithUnacceptedLicenses(xCmdEnv);
+}
+
+sal_Bool ExtensionManager::isReadOnlyRepository(OUString const & repository)
+{
+    return getPackageManager(repository)->isReadOnly();
+}
+
+
+// XModifyBroadcaster
+
+void ExtensionManager::addModifyListener(
+    Reference<util::XModifyListener> const & xListener )
+{
+     check();
+     rBHelper.addListener( cppu::UnoType<decltype(xListener)>::get(), xListener );
+}
+
+
+void ExtensionManager::removeModifyListener(
+    Reference<util::XModifyListener> const & xListener )
+{
+    check();
+    rBHelper.removeListener( cppu::UnoType<decltype(xListener)>::get(), xListener );
+}
+
+void ExtensionManager::check()
+{
+    ::osl::MutexGuard guard( m_aMutex );
+    if (rBHelper.bInDispose || rBHelper.bDisposed) {
+        throw lang::DisposedException(
+            "ExtensionManager instance has already been disposed!",
+            static_cast<OWeakObject *>(this) );
+    }
+}
+
+void ExtensionManager::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))); });
+    }
+}
+
+} // namespace dp_manager
+
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_comp_deployment_ExtensionManager_get_implementation(
+    css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& )
+{
+    return cppu::acquire(new dp_manager::ExtensionManager(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/desktop/source/deployment/manager/dp_extensionmanager.hxx b/desktop/source/deployment/manager/dp_extensionmanager.hxx
new file mode 100644
index 000000000..0e08314c3
--- /dev/null
+++ b/desktop/source/deployment/manager/dp_extensionmanager.hxx
@@ -0,0 +1,227 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <strings.hrc>
+#include <dp_shared.hxx>
+#include <cppuhelper/basemutex.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <com/sun/star/deployment/XExtensionManager.hpp>
+#include <com/sun/star/deployment/XPackageManager.hpp>
+#include <com/sun/star/deployment/XPackageManagerFactory.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <osl/mutex.hxx>
+#include <vector>
+#include <unordered_map>
+
+namespace dp_manager {
+
+typedef std::unordered_map<
+    OUString,
+    std::vector<css::uno::Reference<css::deployment::XPackage> > > id2extensions;
+
+class ExtensionManager : private cppu::BaseMutex,
+        public ::cppu::WeakComponentImplHelper< css::deployment::XExtensionManager, css::lang::XServiceInfo >
+{
+public:
+    explicit ExtensionManager( css::uno::Reference< css::uno::XComponentContext >const& xContext);
+    virtual     ~ExtensionManager() override;
+
+    void check();
+    void fireModified();
+
+public:
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+//    XModifyBroadcaster
+    virtual void SAL_CALL addModifyListener(
+       css::uno::Reference<css::util::XModifyListener> const & xListener ) override;
+    virtual void SAL_CALL removeModifyListener(
+       css::uno::Reference<css::util::XModifyListener> const & xListener ) override;
+
+//XExtensionManager
+    virtual css::uno::Sequence<
+        css::uno::Reference<css::deployment::XPackageTypeInfo> > SAL_CALL
+        getSupportedPackageTypes() override;
+
+    virtual css::uno::Reference<css::task::XAbortChannel> SAL_CALL
+    createAbortChannel() override;
+
+    virtual css::uno::Reference<css::deployment::XPackage> SAL_CALL addExtension(
+        OUString const & url,
+        css::uno::Sequence<css::beans::NamedValue> const & properties,
+        OUString const & repository,
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual void SAL_CALL removeExtension(
+        OUString const & identifier,
+        OUString const & filename,
+        OUString const & repository,
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual void SAL_CALL enableExtension(
+        css::uno::Reference<css::deployment::XPackage> const & extension,
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual void SAL_CALL disableExtension(
+        css::uno::Reference<css::deployment::XPackage> const & extension,
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual sal_Int32 SAL_CALL checkPrerequisitesAndEnable(
+        css::uno::Reference<css::deployment::XPackage> const & extension,
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual css::uno::Sequence< css::uno::Reference<css::deployment::XPackage> >
+        SAL_CALL getDeployedExtensions(
+        OUString const & repository,
+        css::uno::Reference<css::task::XAbortChannel> const &,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual css::uno::Reference< css::deployment::XPackage>
+        SAL_CALL getDeployedExtension(
+        OUString const & repository,
+        OUString const & identifier,
+        OUString const & filename,
+        css::uno::Reference< css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual css::uno::Sequence<css::uno::Reference<css::deployment::XPackage> >
+    SAL_CALL getExtensionsWithSameIdentifier(
+        OUString const & identifier,
+        OUString const & filename,
+        css::uno::Reference< css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual css::uno::Sequence< css::uno::Sequence<css::uno::Reference<css::deployment::XPackage> > >
+        SAL_CALL getAllExtensions(
+        css::uno::Reference<css::task::XAbortChannel> const &,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual void SAL_CALL reinstallDeployedExtensions(
+        sal_Bool force, OUString const & repository,
+        css::uno::Reference< css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference< css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual sal_Bool SAL_CALL synchronize(
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual css::uno::Sequence<css::uno::Reference<css::deployment::XPackage> > SAL_CALL
+    getExtensionsWithUnacceptedLicenses(
+        OUString const & repository,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv) override;
+
+    virtual sal_Bool SAL_CALL isReadOnlyRepository(OUString const & repository) override;
+
+private:
+
+    static OUString StrSyncRepository() { return DpResId(RID_STR_SYNCHRONIZING_REPOSITORY); }
+
+    css::uno::Reference< css::uno::XComponentContext> m_xContext;
+    css::uno::Reference<css::deployment::XPackageManagerFactory> m_xPackageManagerFactory;
+
+    //only to be used within addExtension
+    ::osl::Mutex m_addMutex;
+    /* contains the names of all repositories (except tmp) in order of there
+       priority. That is, the first element is "user" followed by "shared" and
+       then "bundled"
+     */
+    std::vector< OUString > m_repositoryNames;
+
+    css::uno::Reference<css::deployment::XPackageManager> getUserRepository();
+    css::uno::Reference<css::deployment::XPackageManager> getSharedRepository();
+    css::uno::Reference<css::deployment::XPackageManager> getBundledRepository();
+    css::uno::Reference<css::deployment::XPackageManager> getTmpRepository();
+    css::uno::Reference<css::deployment::XPackageManager> getBakRepository();
+
+    bool isUserDisabled(OUString const & identifier,
+                        OUString const & filename);
+
+    static bool isUserDisabled(
+        css::uno::Sequence<css::uno::Reference<css::deployment::XPackage> > const & seqExtSameId);
+
+    void activateExtension(
+        OUString const & identifier,
+        OUString const & fileName,
+        bool bUserDisabled, bool bStartup,
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv);
+
+    static void activateExtension(
+        css::uno::Sequence<css::uno::Reference<css::deployment::XPackage> > const & seqExt,
+        bool bUserDisabled, bool bStartup,
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv );
+
+    std::vector<css::uno::Reference<css::deployment::XPackage> >
+    getExtensionsWithSameId(OUString  const & identifier,
+                            OUString const & fileName);
+
+    css::uno::Reference<css::deployment::XPackage> backupExtension(
+        OUString const & identifier, OUString const & fileName,
+        css::uno::Reference<css::deployment::XPackageManager> const & xPackageManager,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv);
+
+    void checkInstall(
+        OUString const & displayName,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & cmdEnv);
+
+    void checkUpdate(
+        OUString const & newVersion,
+        OUString const & newDisplayName,
+        css::uno::Reference<css::deployment::XPackage> const & oldExtension,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv);
+
+    void addExtensionsToMap(
+        id2extensions & mapExt,
+        css::uno::Sequence<css::uno::Reference<css::deployment::XPackage> > const & seqExt,
+        std::u16string_view repository);
+
+    /// @throws css::lang::IllegalArgumentException
+    /// @throws css::uno::RuntimeException
+    css::uno::Reference<css::deployment::XPackageManager>
+    getPackageManager(std::u16string_view repository);
+
+    /// @throws css::deployment::DeploymentException
+    /// @throws css::ucb::CommandFailedException
+    /// @throws css::ucb::CommandAbortedException
+    /// @throws css::lang::IllegalArgumentException
+    /// @throws css::uno::RuntimeException
+    bool doChecksForAddExtension(
+        css::uno::Reference<css::deployment::XPackageManager> const & xPackageMgr,
+        css::uno::Sequence<css::beans::NamedValue> const & properties,
+        css::uno::Reference<css::deployment::XPackage> const & xTmpExtension,
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv,
+        css::uno::Reference<css::deployment::XPackage> & out_existingExtension );
+
+};
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/desktop/source/deployment/manager/dp_informationprovider.cxx b/desktop/source/deployment/manager/dp_informationprovider.cxx
new file mode 100644
index 000000000..1e7beea34
--- /dev/null
+++ b/desktop/source/deployment/manager/dp_informationprovider.cxx
@@ -0,0 +1,338 @@
+/* -*- 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 <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <com/sun/star/deployment/UpdateInformationProvider.hpp>
+#include <com/sun/star/deployment/XPackage.hpp>
+#include <com/sun/star/deployment/XPackageInformationProvider.hpp>
+#include <com/sun/star/deployment/ExtensionManager.hpp>
+#include <com/sun/star/deployment/XUpdateInformationProvider.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/task/XAbortChannel.hpp>
+#include <com/sun/star/ucb/ContentCreationException.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <com/sun/star/ucb/XCommandEnvironment.hpp>
+#include <com/sun/star/xml/dom/XElement.hpp>
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <osl/diagnose.h>
+#include <rtl/ustring.hxx>
+#include <tools/diagnose_ex.h>
+#include <ucbhelper/content.hxx>
+
+#include <dp_dependencies.hxx>
+#include <dp_descriptioninfoset.hxx>
+#include <dp_identifier.hxx>
+#include <dp_version.hxx>
+#include <dp_update.hxx>
+
+namespace beans      = com::sun::star::beans ;
+namespace deployment = com::sun::star::deployment ;
+namespace lang       = com::sun::star::lang ;
+namespace task       = com::sun::star::task ;
+namespace css_ucb    = com::sun::star::ucb ;
+namespace uno        = com::sun::star::uno ;
+namespace xml = com::sun::star::xml ;
+
+
+namespace dp_info {
+
+namespace {
+
+class PackageInformationProvider :
+        public ::cppu::WeakImplHelper< deployment::XPackageInformationProvider, lang::XServiceInfo >
+
+{
+    public:
+    explicit PackageInformationProvider( uno::Reference< uno::XComponentContext >const& xContext);
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // XPackageInformationProvider
+    virtual OUString SAL_CALL getPackageLocation( const OUString& extensionId ) override;
+    virtual uno::Sequence< uno::Sequence< OUString > > SAL_CALL isUpdateAvailable( const OUString& extensionId ) override;
+    virtual uno::Sequence< uno::Sequence< OUString > > SAL_CALL getExtensionList() override;
+
+private:
+
+    uno::Reference< uno::XComponentContext> mxContext;
+
+    OUString getPackageLocation( const OUString& repository,
+                                      std::u16string_view _sExtensionId );
+
+    uno::Reference< deployment::XUpdateInformationProvider > mxUpdateInformation;
+};
+
+}
+
+PackageInformationProvider::PackageInformationProvider( uno::Reference< uno::XComponentContext > const& xContext) :
+    mxContext( xContext ),
+    mxUpdateInformation( deployment::UpdateInformationProvider::create( xContext ) )
+{
+}
+
+// XServiceInfo
+OUString PackageInformationProvider::getImplementationName()
+{
+    return "com.sun.star.comp.deployment.PackageInformationProvider";
+}
+
+sal_Bool PackageInformationProvider::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+css::uno::Sequence< OUString > PackageInformationProvider::getSupportedServiceNames()
+{
+    // a private one:
+    return { "com.sun.star.comp.deployment.PackageInformationProvider" };
+}
+
+OUString PackageInformationProvider::getPackageLocation(
+    const OUString & repository,
+    std::u16string_view _rExtensionId )
+{
+    OUString aLocationURL;
+    uno::Reference<deployment::XExtensionManager> xManager =
+        deployment::ExtensionManager::get(mxContext);
+
+    if ( xManager.is() )
+    {
+        const uno::Sequence< uno::Reference< deployment::XPackage > > packages(
+                xManager->getDeployedExtensions(
+                    repository,
+                    uno::Reference< task::XAbortChannel >(),
+                    uno::Reference< css_ucb::XCommandEnvironment > () ) );
+
+        for ( int pos = packages.getLength(); pos--; )
+        {
+            try
+            {
+                const beans::Optional< OUString > aID = packages[ pos ]->getIdentifier();
+                if ( aID.IsPresent && (aID.Value == _rExtensionId ) )
+                {
+                    aLocationURL = packages[ pos ]->getURL();
+                    break;
+                }
+            }
+            catch ( uno::RuntimeException & ) {}
+        }
+    }
+
+    return aLocationURL;
+}
+
+
+OUString SAL_CALL
+PackageInformationProvider::getPackageLocation( const OUString& _sExtensionId )
+{
+    OUString aLocationURL = getPackageLocation( "user", _sExtensionId );
+
+    if ( aLocationURL.isEmpty() )
+    {
+        aLocationURL = getPackageLocation( "shared", _sExtensionId );
+    }
+    if ( aLocationURL.isEmpty() )
+    {
+        aLocationURL = getPackageLocation( "bundled", _sExtensionId );
+    }
+    if ( !aLocationURL.isEmpty() )
+    {
+        try
+        {
+            ::ucbhelper::Content aContent( aLocationURL, nullptr, mxContext );
+            aLocationURL = aContent.getURL();
+        }
+        catch (const css::ucb::ContentCreationException&)
+        {
+            TOOLS_WARN_EXCEPTION("desktop.deployment", "ignoring");
+        }
+    }
+    return aLocationURL;
+}
+
+uno::Sequence< uno::Sequence< OUString > > SAL_CALL
+PackageInformationProvider::isUpdateAvailable( const OUString& _sExtensionId )
+{
+    uno::Sequence< uno::Sequence< OUString > > aList;
+
+    uno::Reference<deployment::XExtensionManager> extMgr =
+        deployment::ExtensionManager::get(mxContext);
+
+    if (!extMgr.is())
+    {
+        OSL_ASSERT(false);
+        return aList;
+    }
+    std::vector<std::pair<uno::Reference<deployment::XPackage>, uno::Any > > errors;
+    dp_misc::UpdateInfoMap updateInfoMap;
+    if (!_sExtensionId.isEmpty())
+    {
+        std::vector<uno::Reference<deployment::XPackage> > vecExtensions;
+        uno::Reference<deployment::XPackage> extension;
+        try
+        {
+            extension = dp_misc::getExtensionWithHighestVersion(
+                extMgr->getExtensionsWithSameIdentifier(
+                    _sExtensionId, _sExtensionId, uno::Reference<css_ucb::XCommandEnvironment>()));
+            vecExtensions.push_back(extension);
+        }
+        catch (lang::IllegalArgumentException &)
+        {
+            OSL_ASSERT(false);
+        }
+        updateInfoMap = dp_misc::getOnlineUpdateInfos(
+            mxContext, extMgr, mxUpdateInformation, &vecExtensions, errors);
+    }
+    else
+    {
+        updateInfoMap = dp_misc::getOnlineUpdateInfos(
+            mxContext, extMgr, mxUpdateInformation, nullptr, errors);
+    }
+
+    int nCount = 0;
+    for (auto const& updateInfo : updateInfoMap)
+    {
+        dp_misc::UpdateInfo const & info = updateInfo.second;
+
+        OUString sOnlineVersion;
+        if (info.info.is())
+        {
+            // check, if there are unsatisfied dependencies and ignore this online update
+            dp_misc::DescriptionInfoset infoset(mxContext, info.info);
+            uno::Sequence< uno::Reference< xml::dom::XElement > >
+                ds( dp_misc::Dependencies::check( infoset ) );
+            if ( ! ds.hasElements() )
+                sOnlineVersion = info.version;
+        }
+
+        OUString sVersionUser;
+        OUString sVersionShared;
+        OUString sVersionBundled;
+        uno::Sequence< uno::Reference< deployment::XPackage> > extensions;
+        try {
+            extensions = extMgr->getExtensionsWithSameIdentifier(
+                dp_misc::getIdentifier(info.extension), info.extension->getName(),
+                uno::Reference<css_ucb::XCommandEnvironment>());
+        } catch (const lang::IllegalArgumentException&) {
+            TOOLS_WARN_EXCEPTION("desktop.deployment", "ignoring");
+            continue;
+        }
+        OSL_ASSERT(extensions.getLength() == 3);
+        if (extensions[0].is() )
+            sVersionUser = extensions[0]->getVersion();
+        if (extensions[1].is() )
+            sVersionShared = extensions[1]->getVersion();
+        if (extensions[2].is() )
+            sVersionBundled = extensions[2]->getVersion();
+
+        bool bSharedReadOnly = extMgr->isReadOnlyRepository("shared");
+
+        dp_misc::UPDATE_SOURCE sourceUser = dp_misc::isUpdateUserExtension(
+            bSharedReadOnly, sVersionUser, sVersionShared, sVersionBundled, sOnlineVersion);
+        dp_misc::UPDATE_SOURCE sourceShared = dp_misc::isUpdateSharedExtension(
+            bSharedReadOnly, sVersionShared, sVersionBundled, sOnlineVersion);
+
+        OUString updateVersionUser;
+        OUString updateVersionShared;
+        if (sourceUser != dp_misc::UPDATE_SOURCE_NONE)
+            updateVersionUser = dp_misc::getHighestVersion(
+                sVersionShared, sVersionBundled, sOnlineVersion);
+        if (sourceShared  != dp_misc::UPDATE_SOURCE_NONE)
+            updateVersionShared = dp_misc::getHighestVersion(
+                OUString(), sVersionBundled, sOnlineVersion);
+        OUString updateVersion;
+        if (dp_misc::compareVersions(updateVersionUser, updateVersionShared) == dp_misc::GREATER)
+            updateVersion = updateVersionUser;
+        else
+            updateVersion = updateVersionShared;
+        if (!updateVersion.isEmpty())
+        {
+
+            OUString aNewEntry[2];
+            aNewEntry[0] = updateInfo.first;
+            aNewEntry[1] = updateVersion;
+            aList.realloc( ++nCount );
+            aList.getArray()[ nCount-1 ] = ::uno::Sequence< OUString >( aNewEntry, 2 );
+        }
+    }
+    return aList;
+}
+
+
+uno::Sequence< uno::Sequence< OUString > > SAL_CALL PackageInformationProvider::getExtensionList()
+{
+    const uno::Reference<deployment::XExtensionManager> mgr =
+        deployment::ExtensionManager::get(mxContext);
+
+    if (!mgr.is())
+        return uno::Sequence< uno::Sequence< OUString > >();
+
+    const uno::Sequence< uno::Sequence< uno::Reference<deployment::XPackage > > >
+        allExt =  mgr->getAllExtensions(
+            uno::Reference< task::XAbortChannel >(),
+            uno::Reference< css_ucb::XCommandEnvironment > () );
+
+    uno::Sequence< uno::Sequence< OUString > > retList;
+
+    sal_Int32 cAllIds = allExt.getLength();
+    retList.realloc(cAllIds);
+    auto pretList = retList.getArray();
+
+    for (sal_Int32 i = 0; i < cAllIds; i++)
+    {
+        //The inner sequence contains extensions with the same identifier from
+        //all the different repositories, that is user, share, bundled.
+        const uno::Sequence< uno::Reference< deployment::XPackage > > &
+            seqExtension = allExt[i];
+        sal_Int32 cExt = seqExtension.getLength();
+        OSL_ASSERT(cExt == 3);
+        for (sal_Int32 j = 0; j < cExt; j++)
+        {
+            //ToDo according to the old code the first found extension is used
+            //even if another one with the same id has a better version.
+            uno::Reference< deployment::XPackage > const & xExtension( seqExtension[j] );
+            if (xExtension.is())
+            {
+                pretList[i] = { dp_misc::getIdentifier(xExtension), xExtension->getVersion() };
+                break;
+            }
+        }
+    }
+    return retList;
+}
+
+
+} // namespace dp_info
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_comp_deployment_PackageInformationProvider_get_implementation(
+    css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& )
+{
+    return cppu::acquire(new dp_info::PackageInformationProvider(context));
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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: */
diff --git a/desktop/source/deployment/manager/dp_manager.h b/desktop/source/deployment/manager/dp_manager.h
new file mode 100644
index 000000000..a2079da23
--- /dev/null
+++ b/desktop/source/deployment/manager/dp_manager.h
@@ -0,0 +1,232 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include "dp_activepackages.hxx"
+#include <cppuhelper/basemutex.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <ucbhelper/content.hxx>
+#include <com/sun/star/deployment/XPackageRegistry.hpp>
+#include <com/sun/star/deployment/XPackageManager.hpp>
+#include <memory>
+#include <string_view>
+#include <utility>
+
+namespace dp_manager {
+
+typedef ::cppu::WeakComponentImplHelper<
+    css::deployment::XPackageManager > t_pm_helper;
+
+
+class PackageManagerImpl final : private cppu::BaseMutex, public t_pm_helper
+{
+    css::uno::Reference<css::uno::XComponentContext> m_xComponentContext;
+    OUString m_context;
+    OUString m_registrationData;
+    OUString m_registrationData_expanded;
+    OUString m_registryCache;
+    bool m_readOnly;
+
+    OUString m_activePackages;
+    OUString m_activePackages_expanded;
+    std::unique_ptr< ActivePackages > m_activePackagesDB;
+    //This mutex is only used for synchronization in addPackage
+    ::osl::Mutex m_addMutex;
+    css::uno::Reference<css::ucb::XProgressHandler> m_xLogFile;
+    inline void logIntern( css::uno::Any const & status );
+    void fireModified();
+
+    css::uno::Reference<css::deployment::XPackageRegistry> m_xRegistry;
+
+    void initRegistryBackends();
+    void initActivationLayer(
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv );
+    OUString detectMediaType(
+        ::ucbhelper::Content const & ucbContent, bool throw_exc = true );
+    OUString insertToActivationLayer(
+        css::uno::Sequence<css::beans::NamedValue> const & properties,
+        OUString const & mediaType,
+        ::ucbhelper::Content const & sourceContent,
+        OUString const & title, ActivePackages::Data * dbData );
+    void insertToActivationLayerDB(
+        OUString const & id, ActivePackages::Data const & dbData );
+
+    static void deletePackageFromCache(
+        css::uno::Reference<css::deployment::XPackage> const & xPackage,
+        OUString const & destFolder );
+
+    bool isInstalled(
+        css::uno::Reference<css::deployment::XPackage> const & package);
+
+    bool synchronizeRemovedExtensions(
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv);
+
+    bool synchronizeAddedExtensions(
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv);
+
+    class CmdEnvWrapperImpl
+        : public ::cppu::WeakImplHelper< css::ucb::XCommandEnvironment,
+                                          css::ucb::XProgressHandler >
+    {
+        css::uno::Reference<css::ucb::XProgressHandler> m_xLogFile;
+        css::uno::Reference<css::ucb::XProgressHandler> m_xUserProgress;
+        css::uno::Reference<css::task::XInteractionHandler>
+        m_xUserInteractionHandler;
+
+    public:
+        virtual ~CmdEnvWrapperImpl() override;
+        CmdEnvWrapperImpl(
+            css::uno::Reference<css::ucb::XCommandEnvironment>
+            const & xUserCmdEnv,
+            css::uno::Reference<css::ucb::XProgressHandler> const & xLogFile );
+
+        // XCommandEnvironment
+        virtual css::uno::Reference<css::task::XInteractionHandler> SAL_CALL
+        getInteractionHandler() override;
+        virtual css::uno::Reference<css::ucb::XProgressHandler> SAL_CALL
+        getProgressHandler() override;
+
+        // XProgressHandler
+        virtual void SAL_CALL push( css::uno::Any const & Status ) override;
+        virtual void SAL_CALL update( css::uno::Any const & Status ) override;
+        virtual void SAL_CALL pop() override;
+    };
+
+    inline void check();
+    virtual void SAL_CALL disposing() override;
+
+    virtual ~PackageManagerImpl() override;
+    PackageManagerImpl(
+        css::uno::Reference<css::uno::XComponentContext> xComponentContext, OUString context )
+        : t_pm_helper( m_aMutex ),
+          m_xComponentContext(std::move( xComponentContext )),
+          m_context(std::move( context )),
+          m_readOnly( true )
+        {}
+
+public:
+    static css::uno::Reference<css::deployment::XPackageManager> create(
+        css::uno::Reference<css::uno::XComponentContext>
+        const & xComponentContext, OUString const & context );
+
+    // XComponent
+    virtual void SAL_CALL dispose() override;
+    virtual void SAL_CALL addEventListener(
+        css::uno::Reference<css::lang::XEventListener> const & xListener ) override;
+    virtual void SAL_CALL removeEventListener(
+        css::uno::Reference<css::lang::XEventListener> const & xListener ) override;
+
+    // XModifyBroadcaster
+    virtual void SAL_CALL addModifyListener(
+        css::uno::Reference<css::util::XModifyListener> const & xListener ) override;
+    virtual void SAL_CALL removeModifyListener(
+        css::uno::Reference<css::util::XModifyListener> const & xListener ) override;
+
+    // XPackageManager
+    virtual OUString SAL_CALL getContext() override;
+    virtual css::uno::Sequence<
+        css::uno::Reference<css::deployment::XPackageTypeInfo> > SAL_CALL
+    getSupportedPackageTypes() override;
+
+    virtual css::uno::Reference<css::task::XAbortChannel> SAL_CALL
+    createAbortChannel() override;
+
+    virtual css::uno::Reference<css::deployment::XPackage> SAL_CALL addPackage(
+        OUString const & url,
+        css::uno::Sequence<css::beans::NamedValue> const & properties,
+        OUString const & mediaType,
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual css::uno::Reference<css::deployment::XPackage> SAL_CALL importExtension(
+        css::uno::Reference<css::deployment::XPackage> const & extension,
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual void SAL_CALL removePackage(
+        OUString const & id, OUString const & fileName,
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    OUString getDeployPath( ActivePackages::Data const & data );
+    css::uno::Reference<css::deployment::XPackage> getDeployedPackage_(
+        OUString const & id, OUString const & fileName,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv );
+    css::uno::Reference<css::deployment::XPackage> getDeployedPackage_(
+        std::u16string_view id, ActivePackages::Data const & data,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv,
+        bool ignoreAlienPlatforms = false );
+    virtual css::uno::Reference<css::deployment::XPackage> SAL_CALL
+    getDeployedPackage(
+        OUString const & id, OUString const & fileName,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    css::uno::Sequence< css::uno::Reference<css::deployment::XPackage> >
+    getDeployedPackages_(
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv );
+    virtual css::uno::Sequence< css::uno::Reference<css::deployment::XPackage> >
+    SAL_CALL getDeployedPackages(
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual void SAL_CALL reinstallDeployedPackages(
+        sal_Bool force,
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual ::sal_Bool SAL_CALL isReadOnly(  ) override;
+
+    virtual ::sal_Bool SAL_CALL synchronize(
+        css::uno::Reference<css::task::XAbortChannel> const & xAbortChannel,
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv ) override;
+
+    virtual css::uno::Sequence<css::uno::Reference<css::deployment::XPackage> > SAL_CALL
+    getExtensionsWithUnacceptedLicenses(
+        css::uno::Reference<css::ucb::XCommandEnvironment> const & xCmdEnv) override;
+
+    virtual sal_Int32 SAL_CALL 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 ) override;
+        };
+
+
+inline void PackageManagerImpl::check()
+{
+    ::osl::MutexGuard guard( m_aMutex );
+    if (rBHelper.bInDispose || rBHelper.bDisposed)
+        throw css::lang::DisposedException(
+            "PackageManager instance has already been disposed!",
+            static_cast< ::cppu::OWeakObject * >(this) );
+}
+
+
+inline void PackageManagerImpl::logIntern( css::uno::Any const & status )
+{
+    if (m_xLogFile.is())
+        m_xLogFile->update( status );
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/desktop/source/deployment/manager/dp_managerfac.cxx b/desktop/source/deployment/manager/dp_managerfac.cxx
new file mode 100644
index 000000000..79e0ea358
--- /dev/null
+++ b/desktop/source/deployment/manager/dp_managerfac.cxx
@@ -0,0 +1,186 @@
+/* -*- 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 "dp_manager.h"
+#include <dp_misc.h>
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <com/sun/star/deployment/XPackageManagerFactory.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <unordered_map>
+
+using namespace ::dp_misc;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+
+namespace dp_manager::factory {
+
+typedef ::cppu::WeakComponentImplHelper<
+    deployment::XPackageManagerFactory, lang::XServiceInfo > t_pmfac_helper;
+
+namespace {
+
+class PackageManagerFactoryImpl : private cppu::BaseMutex, public t_pmfac_helper
+{
+    Reference<XComponentContext> m_xComponentContext;
+
+    Reference<deployment::XPackageManager> m_xUserMgr;
+    Reference<deployment::XPackageManager> m_xSharedMgr;
+    Reference<deployment::XPackageManager> m_xBundledMgr;
+    Reference<deployment::XPackageManager> m_xTmpMgr;
+    Reference<deployment::XPackageManager> m_xBakMgr;
+    typedef std::unordered_map<
+        OUString, WeakReference<deployment::XPackageManager> > t_string2weakref;
+    t_string2weakref m_managers;
+
+protected:
+    inline void check();
+    virtual void SAL_CALL disposing() override;
+
+public:
+    explicit PackageManagerFactoryImpl(
+        Reference<XComponentContext> const & xComponentContext );
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // XPackageManagerFactory
+    virtual Reference<deployment::XPackageManager> SAL_CALL getPackageManager(
+        OUString const & context ) override;
+};
+
+}
+
+PackageManagerFactoryImpl::PackageManagerFactoryImpl(
+    Reference<XComponentContext> const & xComponentContext )
+    : t_pmfac_helper( m_aMutex ),
+      m_xComponentContext( xComponentContext )
+{
+}
+
+// XServiceInfo
+OUString PackageManagerFactoryImpl::getImplementationName()
+{
+    return "com.sun.star.comp.deployment.PackageManagerFactory";
+}
+
+sal_Bool PackageManagerFactoryImpl::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+css::uno::Sequence< OUString > PackageManagerFactoryImpl::getSupportedServiceNames()
+{
+    // a private one:
+    return { "com.sun.star.comp.deployment.PackageManagerFactory" };
+}
+
+inline void PackageManagerFactoryImpl::check()
+{
+    ::osl::MutexGuard guard( m_aMutex );
+    if (rBHelper.bInDispose || rBHelper.bDisposed)
+    {
+        throw lang::DisposedException(
+            "PackageManagerFactory instance has already been disposed!",
+            static_cast<OWeakObject *>(this) );
+    }
+}
+
+
+void PackageManagerFactoryImpl::disposing()
+{
+    // dispose all managers:
+    ::osl::MutexGuard guard( m_aMutex );
+    for (auto const& elem : m_managers)
+        try_dispose( elem.second );
+    m_managers = t_string2weakref();
+    // the below are already disposed:
+    m_xUserMgr.clear();
+    m_xSharedMgr.clear();
+    m_xBundledMgr.clear();
+    m_xTmpMgr.clear();
+    m_xBakMgr.clear();
+}
+
+// XPackageManagerFactory
+
+Reference<deployment::XPackageManager>
+PackageManagerFactoryImpl::getPackageManager( OUString const & context )
+{
+    Reference< deployment::XPackageManager > xRet;
+    ::osl::ResettableMutexGuard guard( m_aMutex );
+    check();
+    t_string2weakref::const_iterator const iFind( m_managers.find( context ) );
+    if (iFind != m_managers.end()) {
+        xRet = iFind->second;
+        if (xRet.is())
+            return xRet;
+    }
+
+    guard.clear();
+    xRet.set( PackageManagerImpl::create( m_xComponentContext, context ) );
+    guard.reset();
+    std::pair< t_string2weakref::iterator, bool > insertion(
+        m_managers.emplace( context, xRet ) );
+    if (insertion.second)
+    {
+        OSL_ASSERT( insertion.first->second.get() == xRet );
+        // hold user, shared mgrs for whole process: live deployment
+        if ( context == "user" )
+            m_xUserMgr = xRet;
+        else if ( context == "shared" )
+            m_xSharedMgr = xRet;
+        else if ( context == "bundled" )
+            m_xBundledMgr = xRet;
+        else if ( context == "tmp" )
+            m_xTmpMgr = xRet;
+        else if ( context == "bak" )
+            m_xBakMgr = xRet;
+    }
+    else
+    {
+        Reference< deployment::XPackageManager > xAlreadyIn(
+            insertion.first->second );
+        if (xAlreadyIn.is())
+        {
+            guard.clear();
+            try_dispose( xRet );
+            xRet = xAlreadyIn;
+        }
+        else
+        {
+            insertion.first->second = xRet;
+        }
+    }
+    return xRet;
+}
+
+} // namespace dp_manager::factory
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_comp_deployment_PackageManagerFactory_get_implementation(
+    css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& )
+{
+    return cppu::acquire(new dp_manager::factory::PackageManagerFactoryImpl(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/desktop/source/deployment/manager/dp_properties.cxx b/desktop/source/deployment/manager/dp_properties.cxx
new file mode 100644
index 000000000..b0d2245e8
--- /dev/null
+++ b/desktop/source/deployment/manager/dp_properties.cxx
@@ -0,0 +1,145 @@
+/* -*- 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/ucb/XCommandEnvironment.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <xmlscript/xml_helper.hxx>
+#include <ucbhelper/content.hxx>
+
+#include <dp_ucb.h>
+#include "dp_properties.hxx"
+
+namespace lang  = com::sun::star::lang;
+namespace ucb = com::sun::star::ucb;
+namespace uno = com::sun::star::uno;
+
+
+using ::com::sun::star::uno::Reference;
+
+constexpr OUStringLiteral PROP_SUPPRESS_LICENSE = u"SUPPRESS_LICENSE";
+constexpr OUStringLiteral PROP_EXTENSION_UPDATE = u"EXTENSION_UPDATE";
+
+namespace dp_manager {
+
+//Reading the file
+ExtensionProperties::ExtensionProperties(
+    std::u16string_view urlExtension,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv,
+    Reference<uno::XComponentContext> const & xContext) :
+    m_xCmdEnv(xCmdEnv), m_xContext(xContext)
+{
+    m_propFileUrl = OUString::Concat(urlExtension) + "properties";
+
+    std::vector< std::pair< OUString, OUString> > props;
+    if (! dp_misc::create_ucb_content(nullptr, m_propFileUrl, nullptr, false))
+        return;
+
+    ::ucbhelper::Content contentProps(m_propFileUrl, m_xCmdEnv, m_xContext);
+    dp_misc::readProperties(props, contentProps);
+
+    for (auto const& prop : props)
+    {
+        if (prop.first == PROP_SUPPRESS_LICENSE)
+            m_prop_suppress_license = prop.second;
+    }
+}
+
+//Writing the file
+ExtensionProperties::ExtensionProperties(
+    std::u16string_view urlExtension,
+    uno::Sequence<css::beans::NamedValue> const & properties,
+    Reference<ucb::XCommandEnvironment> const & xCmdEnv,
+    Reference<uno::XComponentContext> const & xContext) :
+    m_xCmdEnv(xCmdEnv), m_xContext(xContext)
+{
+    m_propFileUrl = OUString::Concat(urlExtension) + "properties";
+
+    for (css::beans::NamedValue const & v : properties)
+    {
+        if (v.Name == PROP_SUPPRESS_LICENSE)
+        {
+            m_prop_suppress_license = getPropertyValue(v);
+        }
+        else if (v.Name == PROP_EXTENSION_UPDATE)
+        {
+            m_prop_extension_update = getPropertyValue(v);
+        }
+        else
+        {
+            throw lang::IllegalArgumentException(
+                "Extension Manager: unknown property", nullptr, -1);
+        }
+    }
+}
+
+OUString ExtensionProperties::getPropertyValue(css::beans::NamedValue const & v)
+{
+    OUString value("0");
+    if (! (v.Value >>= value) )
+    {
+        throw lang::IllegalArgumentException(
+            "Extension Manager: wrong property value", nullptr, -1);
+    }
+    return value;
+}
+void ExtensionProperties::write()
+{
+    ::ucbhelper::Content contentProps(m_propFileUrl, m_xCmdEnv, m_xContext);
+    OUString buf;
+
+    if (m_prop_suppress_license)
+    {
+        buf = OUString::Concat(PROP_SUPPRESS_LICENSE) + "=" + *m_prop_suppress_license;
+    }
+
+    OString stamp = OUStringToOString(buf, RTL_TEXTENCODING_UTF8);
+    Reference<css::io::XInputStream> xData(
+        ::xmlscript::createInputStream(
+                reinterpret_cast<sal_Int8 const *>(stamp.getStr()),
+                stamp.getLength() ) );
+    contentProps.writeStream( xData, true /* replace existing */ );
+}
+
+bool ExtensionProperties::isSuppressedLicense() const
+{
+    bool ret = false;
+    if (m_prop_suppress_license)
+    {
+        if (*m_prop_suppress_license == "1")
+            ret = true;
+    }
+    return ret;
+}
+
+bool ExtensionProperties::isExtensionUpdate() const
+{
+    bool ret = false;
+    if (m_prop_extension_update)
+    {
+        if (*m_prop_extension_update == "1")
+            ret = true;
+    }
+    return ret;
+}
+
+} // namespace dp_manager
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/desktop/source/deployment/manager/dp_properties.hxx b/desktop/source/deployment/manager/dp_properties.hxx
new file mode 100644
index 000000000..06139ece3
--- /dev/null
+++ b/desktop/source/deployment/manager/dp_properties.hxx
@@ -0,0 +1,58 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <com/sun/star/beans/NamedValue.hpp>
+#include <com/sun/star/ucb/XCommandEnvironment.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <optional>
+#include <string_view>
+
+namespace dp_manager
+{
+class ExtensionProperties final
+{
+    OUString m_propFileUrl;
+    const css::uno::Reference<css::ucb::XCommandEnvironment> m_xCmdEnv;
+    const css::uno::Reference<css::uno::XComponentContext> m_xContext;
+    ::std::optional<OUString> m_prop_suppress_license;
+    ::std::optional<OUString> m_prop_extension_update;
+
+    static OUString getPropertyValue(css::beans::NamedValue const& v);
+
+public:
+    ExtensionProperties(std::u16string_view urlExtension,
+                        css::uno::Reference<css::ucb::XCommandEnvironment> const& xCmdEnv,
+                        css::uno::Reference<css::uno::XComponentContext> const& xContext);
+
+    ExtensionProperties(std::u16string_view urlExtension,
+                        css::uno::Sequence<css::beans::NamedValue> const& properties,
+                        css::uno::Reference<css::ucb::XCommandEnvironment> const& xCmdEnv,
+                        css::uno::Reference<css::uno::XComponentContext> const& xContext);
+
+    void write();
+
+    bool isSuppressedLicense() const;
+
+    bool isExtensionUpdate() const;
+};
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */