1 files changed, 94 insertions, 0 deletions
diff --git a/xmlsecurity/source/xmlsec/nss/digestcontext.cxx b/xmlsecurity/source/xmlsec/nss/digestcontext.cxx
new file mode 100644
index 000000000..63c128e70
--- /dev/null
+++ b/xmlsecurity/source/xmlsec/nss/digestcontext.cxx
@@ -0,0 +1,94 @@
+/* -*- 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 <sal/config.h>
+
+#include <com/sun/star/lang/DisposedException.hpp>
+
+#include <pk11pub.h>
+#include "digestcontext.hxx"
+
+using namespace ::com::sun::star;
+
+ODigestContext::~ODigestContext()
+{
+    if ( m_pContext )
+    {
+        PK11_DestroyContext( m_pContext, PR_TRUE );
+        m_pContext = nullptr;
+    }
+}
+
+void SAL_CALL ODigestContext::updateDigest( const uno::Sequence< ::sal_Int8 >& aData )
+{
+    std::scoped_lock aGuard( m_aMutex );
+
+    if ( m_bBroken )
+        throw uno::RuntimeException();
+
+    if ( m_bDisposed )
+        throw lang::DisposedException();
+
+    if (m_b1KData && m_nDigested >= 1024)
+        return;
+
+    uno::Sequence< sal_Int8 > aToDigest = aData;
+    if ( m_b1KData && m_nDigested + aData.getLength() > 1024 )
+        aToDigest.realloc( 1024 - m_nDigested );
+
+    if ( PK11_DigestOp( m_pContext, reinterpret_cast< const unsigned char* >( aToDigest.getConstArray() ), aToDigest.getLength() ) != SECSuccess )
+    {
+        PK11_DestroyContext( m_pContext, PR_TRUE );
+        m_pContext = nullptr;
+        m_bBroken = true;
+        throw uno::RuntimeException();
+    }
+
+    m_nDigested += aToDigest.getLength();
+}
+
+uno::Sequence< ::sal_Int8 > SAL_CALL ODigestContext::finalizeDigestAndDispose()
+{
+    std::scoped_lock aGuard( m_aMutex );
+
+    if ( m_bBroken )
+        throw uno::RuntimeException();
+
+    if ( m_bDisposed )
+        throw lang::DisposedException();
+
+    uno::Sequence< sal_Int8 > aResult( m_nDigestLength );
+    unsigned int nResultLen = 0;
+    if ( PK11_DigestFinal( m_pContext, reinterpret_cast< unsigned char* >( aResult.getArray() ), &nResultLen, aResult.getLength() ) != SECSuccess )
+    {
+        PK11_DestroyContext( m_pContext, PR_TRUE );
+        m_pContext = nullptr;
+        m_bBroken = true;
+        throw uno::RuntimeException();
+    }
+
+    PK11_DestroyContext( m_pContext, PR_TRUE );
+    m_pContext = nullptr;
+    m_bDisposed = true;
+
+    aResult.realloc( nResultLen );
+    return aResult;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */