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

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

1 files changed, 197 insertions, 0 deletions

diff --git a/xmlsecurity/source/framework/signatureengine.cxx b/xmlsecurity/source/framework/signatureengine.cxx
new file mode 100644
index 000000000..0390ea7e6
--- /dev/null
+++ b/xmlsecurity/source/framework/signatureengine.cxx
@@ -0,0 +1,197 @@
+/* -*- 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 <framework/signatureengine.hxx>
+#include <framework/xmlsignaturetemplateimpl.hxx>
+#include <rtl/ref.hxx>
+
+namespace com::sun::star::xml::wrapper { class XXMLElementWrapper; }
+
+using namespace com::sun::star::uno;
+
+SignatureEngine::SignatureEngine()
+    : m_nTotalReferenceNumber(-1)
+{
+}
+
+bool SignatureEngine::checkReady() const
+/****** SignatureEngine/checkReady *******************************************
+ *
+ *   NAME
+ *  checkReady -- checks the conditions for the main operation.
+ *
+ *   SYNOPSIS
+ *  bReady = checkReady( );
+ *
+ *   FUNCTION
+ *  checks whether all following conditions are satisfied:
+ *  1. the main operation has't begun yet;
+ *  2. the key material is known;
+ *  3. the amount of reference is known;
+ *  4. all of referenced elements, the key element and the signature
+ *     template are buffered.
+ *
+ *   RESULT
+ *  bReady - true if all conditions are satisfied, false otherwise
+ ******************************************************************************/
+{
+    bool rc = true;
+
+    sal_Int32 nKeyInc = 0;
+    if (m_nIdOfKeyEC != 0)
+    {
+        nKeyInc = 1;
+    }
+
+    if (m_bMissionDone ||
+        m_nIdOfKeyEC == -1 ||
+        m_nTotalReferenceNumber == -1 ||
+        m_nTotalReferenceNumber+1+nKeyInc > m_nNumOfResolvedReferences)
+    {
+        rc = false;
+    }
+
+    return rc;
+}
+
+void SignatureEngine::tryToPerform( )
+/****** SignatureEngine/tryToPerform *****************************************
+ *
+ *   NAME
+ *  tryToPerform -- tries to perform the signature operation.
+ *
+ *   FUNCTION
+ *  if the situation is ready, perform following operations.
+ *  1. prepares a signature template;
+ *  2. calls the signature bridge component;
+ *  3. clears up all used resources;
+ *  4. notifies the result listener;
+ *  5. sets the "accomplishment" flag.
+ ******************************************************************************/
+{
+    if (!checkReady())
+        return;
+
+    rtl::Reference<XMLSignatureTemplateImpl> xSignatureTemplate = new XMLSignatureTemplateImpl();
+
+    css::uno::Reference< css::xml::wrapper::XXMLElementWrapper >
+        xXMLElement = m_xSAXEventKeeper->getElement( m_nIdOfTemplateEC );
+
+    xSignatureTemplate->setTemplate(xXMLElement);
+
+    for( const auto i : m_vReferenceIds )
+    {
+        xXMLElement = m_xSAXEventKeeper->getElement( i );
+        xSignatureTemplate->setTarget(xXMLElement);
+    }
+
+    /*
+     * set the Uri binding
+     */
+    xSignatureTemplate->setBinding( this );
+
+    startEngine(xSignatureTemplate);
+
+    /*
+     * done
+     */
+    clearUp( );
+
+    notifyResultListener();
+
+    m_bMissionDone = true;
+}
+
+void SignatureEngine::clearUp( ) const
+/****** SignatureEngine/clearUp **********************************************
+ *
+ *   NAME
+ *  clearUp -- clear up all resources used by this operation.
+ *
+ *   FUNCTION
+ *  cleaning resources up includes:
+ *  1. releases the ElementCollector for the signature template element;
+ *  2. releases ElementCollectors for referenced elements;
+ *  3. releases the ElementCollector for the key element, if there is one.
+ ******************************************************************************/
+{
+    css::uno::Reference < css::xml::crypto::sax::XReferenceResolvedBroadcaster >
+        xReferenceResolvedBroadcaster( m_xSAXEventKeeper, css::uno::UNO_QUERY );
+    xReferenceResolvedBroadcaster->removeReferenceResolvedListener(
+        m_nIdOfTemplateEC,
+        static_cast<const css::uno::Reference < css::xml::crypto::sax::XReferenceResolvedListener > >(static_cast<SecurityEngine *>(const_cast<SignatureEngine *>(this))));
+
+    m_xSAXEventKeeper->removeElementCollector(m_nIdOfTemplateEC);
+
+    for( const auto& i : m_vReferenceIds )
+    {
+        xReferenceResolvedBroadcaster->removeReferenceResolvedListener(
+            i,
+            static_cast<const css::uno::Reference < css::xml::crypto::sax::XReferenceResolvedListener > >(static_cast<SecurityEngine *>(const_cast<SignatureEngine *>(this))));
+        m_xSAXEventKeeper->removeElementCollector(i);
+    }
+
+    if (m_nIdOfKeyEC != 0 && m_nIdOfKeyEC != -1)
+    {
+        m_xSAXEventKeeper->removeElementCollector(m_nIdOfKeyEC);
+    }
+}
+
+/* XReferenceCollector */
+void SAL_CALL SignatureEngine::setReferenceCount( sal_Int32 count )
+{
+    m_nTotalReferenceNumber = count;
+    tryToPerform();
+}
+
+void SAL_CALL SignatureEngine::setReferenceId( sal_Int32 id )
+{
+    m_vReferenceIds.push_back( id );
+}
+
+/* XUriBinding */
+void SAL_CALL SignatureEngine::setUriBinding(
+    const OUString& uri,
+    const css::uno::Reference< css::io::XInputStream >& aInputStream )
+{
+    m_vUris.push_back(uri);
+    m_vXInputStreams.push_back(aInputStream);
+}
+
+css::uno::Reference< css::io::XInputStream > SAL_CALL SignatureEngine::getUriBinding( const OUString& uri )
+{
+    css::uno::Reference< css::io::XInputStream > xInputStream;
+
+    int size = m_vUris.size();
+
+    for( int i=0; i<size; ++i)
+    {
+        if (m_vUris[i] == uri)
+        {
+            xInputStream = m_vXInputStreams[i];
+            break;
+        }
+    }
+
+    return xInputStream;
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */