1 files changed, 113 insertions, 0 deletions
diff --git a/xmlsecurity/source/helper/UriBindingHelper.cxx b/xmlsecurity/source/helper/UriBindingHelper.cxx
new file mode 100644
index 000000000..f6c36d2c8
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+++ b/xmlsecurity/source/helper/UriBindingHelper.cxx
@@ -0,0 +1,113 @@
+/* -*- 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 <UriBindingHelper.hxx>
+
+#include <tools/solar.h>
+#include <unotools/streamhelper.hxx>
+
+#include <com/sun/star/embed/XStorage.hpp>
+#include <com/sun/star/embed/ElementModes.hpp>
+#include <osl/diagnose.h>
+#include <rtl/uri.hxx>
+#include <sal/log.hxx>
+
+using namespace com::sun::star;
+
+// XUriBinding
+
+UriBindingHelper::UriBindingHelper()
+{
+}
+
+UriBindingHelper::UriBindingHelper( const css::uno::Reference < css::embed::XStorage >& rxStorage )
+{
+    mxStorage = rxStorage;
+}
+
+void SAL_CALL UriBindingHelper::setUriBinding( const OUString& /*uri*/, const uno::Reference< io::XInputStream >&)
+{
+}
+
+uno::Reference< io::XInputStream > SAL_CALL UriBindingHelper::getUriBinding( const OUString& uri )
+{
+    uno::Reference< io::XInputStream > xInputStream;
+    if ( mxStorage.is() )
+    {
+        xInputStream = OpenInputStream( mxStorage, uri );
+    }
+    else
+    {
+        SvFileStream* pStream = new SvFileStream( uri, StreamMode::READ );
+        sal_uInt64 nBytes = pStream->TellEnd();
+        SvLockBytesRef xLockBytes = new SvLockBytes( pStream, true );
+        xInputStream = new utl::OInputStreamHelper( xLockBytes, nBytes );
+    }
+    return xInputStream;
+}
+
+uno::Reference < io::XInputStream > UriBindingHelper::OpenInputStream( const uno::Reference < embed::XStorage >& rxStore, const OUString& rURI )
+{
+    OSL_ASSERT(!rURI.isEmpty());
+    uno::Reference < io::XInputStream > xInStream;
+
+    OUString aURI(rURI);
+    // Ignore leading slash, don't attempt to open a storage with name "".
+    if (aURI.startsWith("/"))
+        aURI = aURI.copy(1);
+    // Ignore query part of the URI.
+    sal_Int32 nQueryPos = aURI.indexOf('?');
+    if (nQueryPos != -1)
+        aURI = aURI.copy(0, nQueryPos);
+
+
+    sal_Int32 nSepPos = aURI.indexOf( '/' );
+    if ( nSepPos == -1 )
+    {
+        // Cloning because of I can't keep all storage references open
+        // MBA with think about a better API...
+        const OUString sName = ::rtl::Uri::decode(
+            aURI, rtl_UriDecodeStrict, rtl_UriCharClassRelSegment);
+        if (sName.isEmpty() && !aURI.isEmpty())
+            throw uno::Exception("Could not decode URI for stream element.", nullptr);
+
+        uno::Reference< io::XStream > xStream;
+        if (!rxStore->hasByName(sName))
+            SAL_WARN("xmlsecurity.helper", "expected stream, but not found: " << sName);
+        else
+            xStream = rxStore->cloneStreamElement( sName );
+        if ( !xStream.is() )
+            throw uno::RuntimeException();
+        xInStream = xStream->getInputStream();
+    }
+    else
+    {
+        const OUString aStoreName = ::rtl::Uri::decode(
+            aURI.copy( 0, nSepPos ), rtl_UriDecodeStrict, rtl_UriCharClassRelSegment);
+        if (aStoreName.isEmpty() && !aURI.isEmpty())
+            throw uno::Exception("Could not decode URI for stream element.", nullptr);
+
+        OUString aElement = aURI.copy( nSepPos+1 );
+        uno::Reference < embed::XStorage > xSubStore = rxStore->openStorageElement( aStoreName, embed::ElementModes::READ );
+        xInStream = OpenInputStream( xSubStore, aElement );
+    }
+    return xInStream;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */