sd signature line: extract part of signature line UI from cui to svx

So the "sign existing pdf" code in sd can reuse that.

(cherry picked from commit 85b68061a5a904ca82e5db40600af741d30f0bb8)

Conflicts:
cui/source/dialogs/SignSignatureLineDialog.cxx

Change-Id: If51fae203ed0c68ed8e5e63368e60ae1c705bade
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/97175
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

2 files changed, 115 insertions, 0 deletions

diff --git a/svx/Library_svx.mk b/svx/Library_svx.mk
index bdbdda1f555c..60916bc4c3a1 100644
--- a/svx/Library_svx.mk
+++ b/svx/Library_svx.mk
@@ -158,6 +158,7 @@ $(eval $(call gb_Library_add_exception_objects,svx,\
     svx/source/dialog/txencbox \
     svx/source/dialog/txenctab \
     svx/source/dialog/weldeditview \
+    svx/source/dialog/signaturelinehelper \
     svx/source/engine3d/float3d \
     svx/source/items/algitem \
     svx/source/items/autoformathelper \
diff --git a/svx/source/dialog/signaturelinehelper.cxx b/svx/source/dialog/signaturelinehelper.cxx
new file mode 100644
index 000000000000..5e15cc0ba5b0
--- /dev/null
+++ b/svx/source/dialog/signaturelinehelper.cxx
@@ -0,0 +1,114 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <svx/signaturelinehelper.hxx>
+
+#include <com/sun/star/graphic/GraphicProvider.hpp>
+#include <com/sun/star/security/DocumentDigitalSignatures.hpp>
+#include <com/sun/star/security/XCertificate.hpp>
+
+#include <comphelper/processfactory.hxx>
+#include <comphelper/storagehelper.hxx>
+#include <comphelper/xmlsechelper.hxx>
+#include <config_folders.h>
+#include <rtl/bootstrap.hxx>
+#include <sal/log.hxx>
+#include <sfx2/docfile.hxx>
+#include <sfx2/docfilt.hxx>
+#include <sfx2/objsh.hxx>
+#include <tools/stream.hxx>
+#include <unotools/localedatawrapper.hxx>
+#include <unotools/streamwrap.hxx>
+#include <unotools/syslocale.hxx>
+#include <vcl/weld.hxx>
+
+using namespace com::sun::star;
+
+namespace svx::SignatureLineHelper
+{
+OUString getSignatureImage(const OUString& rType)
+{
+    OUString aType = rType;
+    if (aType.isEmpty())
+    {
+        aType = "signature-line.svg";
+    }
+    OUString aPath("$BRAND_BASE_DIR/" LIBO_SHARE_FOLDER "/filter/" + aType);
+    rtl::Bootstrap::expandMacros(aPath);
+    SvFileStream aStream(aPath, StreamMode::READ);
+    if (aStream.GetError() != ERRCODE_NONE)
+    {
+        SAL_WARN("cui.dialogs", "failed to open " << aType);
+    }
+
+    OString const svg = read_uInt8s_ToOString(aStream, aStream.remainingSize());
+    return OUString::fromUtf8(svg);
+}
+
+uno::Reference<security::XCertificate> getSignatureCertificate(SfxObjectShell* pShell,
+                                                               weld::Window* pParent)
+{
+    if (!pShell)
+    {
+        return uno::Reference<security::XCertificate>();
+    }
+
+    if (!pParent)
+    {
+        return uno::Reference<security::XCertificate>();
+    }
+
+    uno::Reference<security::XDocumentDigitalSignatures> xSigner(
+        security::DocumentDigitalSignatures::createWithVersion(
+            comphelper::getProcessComponentContext(), "1.2"));
+    xSigner->setParentWindow(pParent->GetXWindow());
+    OUString aDescription;
+    security::CertificateKind certificateKind = security::CertificateKind_NONE;
+    // When signing ooxml, we only want X.509 certificates
+    if (pShell->GetMedium()->GetFilter()->IsAlienFormat())
+    {
+        certificateKind = security::CertificateKind_X509;
+    }
+    uno::Reference<security::XCertificate> xSignCertificate
+        = xSigner->selectSigningCertificateWithType(certificateKind, aDescription);
+    return xSignCertificate;
+}
+
+OUString getSignerName(const css::uno::Reference<css::security::XCertificate>& xCertificate)
+{
+    return comphelper::xmlsec::GetContentPart(xCertificate->getSubjectName(),
+                                              xCertificate->getCertificateKind());
+}
+
+OUString getLocalizedDate()
+{
+    const SvtSysLocale aSysLocale;
+    const LocaleDataWrapper& rLocaleData = aSysLocale.GetLocaleData();
+    Date aDateTime(Date::SYSTEM);
+    return rLocaleData.getDate(aDateTime);
+}
+
+uno::Reference<graphic::XGraphic> importSVG(const OUString& rSVG)
+{
+    SvMemoryStream aSvgStream(4096, 4096);
+    aSvgStream.WriteOString(OUStringToOString(rSVG, RTL_TEXTENCODING_UTF8));
+    uno::Reference<io::XInputStream> xInputStream(new utl::OSeekableInputStreamWrapper(aSvgStream));
+    uno::Reference<uno::XComponentContext> xContext(comphelper::getProcessComponentContext());
+    uno::Reference<graphic::XGraphicProvider> xProvider
+        = graphic::GraphicProvider::create(xContext);
+
+    uno::Sequence<beans::PropertyValue> aMediaProperties(1);
+    aMediaProperties[0].Name = "InputStream";
+    aMediaProperties[0].Value <<= xInputStream;
+    uno::Reference<graphic::XGraphic> xGraphic(xProvider->queryGraphic(aMediaProperties));
+    return xGraphic;
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */