tdf#140280 sfx2: fix crash on double-clicking a no-sign shape in read-only mode

Don't assume that all shapes provide an InteropGrabBag UNO property,
check for it.

(cherry picked from commit c76e6307b6cf33bda0cfa12647ed0342aecc1b29)

Change-Id: I6347c54b0631c37154424babbfbd52f802af57d1
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/110751
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/sfx2/CppunitTest_sfx2_doc.mk b/sfx2/CppunitTest_sfx2_doc.mk
new file mode 100644
index 0000000..02b06df
--- /dev/null
+++ b/sfx2/CppunitTest_sfx2_doc.mk
@@ -0,0 +1,45 @@
# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
#*************************************************************************
#
# 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/.
#
#*************************************************************************

$(eval $(call gb_CppunitTest_CppunitTest,sfx2_doc))

$(eval $(call gb_CppunitTest_use_externals,sfx2_doc,\
	boost_headers \
))

$(eval $(call gb_CppunitTest_add_exception_objects,sfx2_doc, \
    sfx2/qa/cppunit/doc \
))

$(eval $(call gb_CppunitTest_use_libraries,sfx2_doc, \
    comphelper \
    cppu \
    sal \
    test \
    unotest \
    sfx \
    svl \
))

$(eval $(call gb_CppunitTest_use_sdk_api,sfx2_doc))

$(eval $(call gb_CppunitTest_use_ure,sfx2_doc))
$(eval $(call gb_CppunitTest_use_vcl,sfx2_doc))

$(eval $(call gb_CppunitTest_use_rdb,sfx2_doc,services))

$(eval $(call gb_CppunitTest_use_custom_headers,sfx2_doc,\
	officecfg/registry \
))

$(eval $(call gb_CppunitTest_use_configuration,sfx2_doc))

# vim: set noet sw=4 ts=4:
diff --git a/sfx2/Module_sfx2.mk b/sfx2/Module_sfx2.mk
index d64b871..dbab052e 100644
--- a/sfx2/Module_sfx2.mk
+++ b/sfx2/Module_sfx2.mk
@@ -37,6 +37,7 @@ $(eval $(call gb_Module_add_check_targets,sfx2,\
    CppunitTest_sfx2_controlleritem \
    CppunitTest_sfx2_classification \
    CppunitTest_sfx2_view \
    CppunitTest_sfx2_doc \
))

$(eval $(call gb_Module_add_subsequentcheck_targets,sfx2,\
diff --git a/sfx2/qa/cppunit/doc.cxx b/sfx2/qa/cppunit/doc.cxx
new file mode 100644
index 0000000..01e8fd7
--- /dev/null
+++ b/sfx2/qa/cppunit/doc.cxx
@@ -0,0 +1,81 @@
/* -*- 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/.
 */

#include <test/bootstrapfixture.hxx>
#include <unotest/macros_test.hxx>

#include <com/sun/star/frame/Desktop.hpp>
#include <com/sun/star/view/XSelectionSupplier.hpp>
#include <com/sun/star/drawing/XDrawPagesSupplier.hpp>

#include <comphelper/propertyvalue.hxx>
#include <sfx2/objsh.hxx>
#include <sfx2/sfxbasemodel.hxx>

using namespace com::sun::star;

namespace
{
/// Covers sfx2/source/doc/ fixes.
class Test : public test::BootstrapFixture, public unotest::MacrosTest
{
private:
    uno::Reference<lang::XComponent> mxComponent;

public:
    void setUp() override;
    void tearDown() override;
    uno::Reference<lang::XComponent>& getComponent() { return mxComponent; }
};

void Test::setUp()
{
    test::BootstrapFixture::setUp();

    mxDesktop.set(frame::Desktop::create(mxComponentContext));
}

void Test::tearDown()
{
    if (mxComponent.is())
        mxComponent->dispose();

    test::BootstrapFixture::tearDown();
}

CPPUNIT_TEST_FIXTURE(Test, testNoGrabBagShape)
{
    // Load a document and select the first shape.
    css::uno::Sequence<css::beans::PropertyValue> aArgs{ comphelper::makePropertyValue("ReadOnly",
                                                                                       true) };
    getComponent() = loadFromDesktop("private:factory/simpress", "", aArgs);
    uno::Reference<frame::XModel> xModel(getComponent(), uno::UNO_QUERY);
    uno::Reference<drawing::XDrawPagesSupplier> xDrawPagesSupplier(xModel, uno::UNO_QUERY);
    uno::Reference<container::XIndexAccess> xDrawPage(
        xDrawPagesSupplier->getDrawPages()->getByIndex(0), uno::UNO_QUERY);
    uno::Any aShape = xDrawPage->getByIndex(0);
    uno::Reference<view::XSelectionSupplier> xController(xModel->getCurrentController(),
                                                         uno::UNO_QUERY);
    xController->select(aShape);

    // See if it has a signing certificate associated.
    auto pBaseModel = dynamic_cast<SfxBaseModel*>(xModel.get());
    CPPUNIT_ASSERT(pBaseModel);
    SfxObjectShell* pObjectShell = pBaseModel->GetObjectShell();

    // Without the accompanying fix in place, this test would have failed with:
    // An uncaught exception of type com.sun.star.beans.UnknownPropertyException
    // which was not caught later, resulting in a crash.
    pObjectShell->GetSignPDFCertificate();
}
}

CPPUNIT_PLUGIN_IMPLEMENT();

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sfx2/source/doc/objserv.cxx b/sfx2/source/doc/objserv.cxx
index 5a4354b..8332710 100644
--- a/sfx2/source/doc/objserv.cxx
+++ b/sfx2/source/doc/objserv.cxx
@@ -428,6 +428,11 @@ uno::Reference<security::XCertificate> SfxObjectShell::GetSignPDFCertificate() c
        return uno::Reference<security::XCertificate>();
    }

    if (!xShapeProps->getPropertySetInfo()->hasPropertyByName("InteropGrabBag"))
    {
        return uno::Reference<security::XCertificate>();
    }

    comphelper::SequenceAsHashMap aMap(xShapeProps->getPropertyValue("InteropGrabBag"));
    auto it = aMap.find("SignatureCertificate");
    if (it == aMap.end())