130 lines
4.8 KiB
C++
130 lines
4.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <UriBindingHelper.hxx>
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#include <tools/stream.hxx>
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#include <unotools/streamwrap.hxx>
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#include <com/sun/star/embed/XStorage.hpp>
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#include <com/sun/star/embed/ElementModes.hpp>
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#include <osl/diagnose.h>
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#include <rtl/uri.hxx>
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#include <sal/log.hxx>
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#include <documentsignaturehelper.hxx>
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using namespace com::sun::star;
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// XUriBinding
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UriBindingHelper::UriBindingHelper()
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{
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}
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UriBindingHelper::UriBindingHelper( const css::uno::Reference < css::embed::XStorage >& rxStorage, const uno::Reference<io::XStream>& xScriptingSignatureStream )
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{
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mxStorage = rxStorage;
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mxScriptingSignatureStream = xScriptingSignatureStream;
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}
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void SAL_CALL UriBindingHelper::setUriBinding( const OUString& /*uri*/, const uno::Reference< io::XInputStream >&)
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{
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}
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uno::Reference< io::XInputStream > SAL_CALL UriBindingHelper::getUriBinding( const OUString& uri )
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{
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uno::Reference< io::XInputStream > xInputStream;
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if ( mxStorage.is() )
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{
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xInputStream = OpenInputStream( mxStorage, uri, mxScriptingSignatureStream );
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}
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else
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{
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std::unique_ptr<SvFileStream> pStream(new SvFileStream( uri, StreamMode::READ ));
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xInputStream = new utl::OInputStreamWrapper( std::move(pStream) );
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}
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return xInputStream;
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}
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uno::Reference < io::XInputStream > UriBindingHelper::OpenInputStream( const uno::Reference < embed::XStorage >& rxStore, const OUString& rURI, const css::uno::Reference<css::io::XStream>& xScriptingSignatureStream )
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{
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OSL_ASSERT(!rURI.isEmpty());
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uno::Reference < io::XInputStream > xInStream;
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OUString aURI(rURI);
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// Ignore leading slash, don't attempt to open a storage with name "".
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if (aURI.startsWith("/"))
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aURI = aURI.copy(1);
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// Ignore query part of the URI.
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sal_Int32 nQueryPos = aURI.indexOf('?');
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if (nQueryPos != -1)
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aURI = aURI.copy(0, nQueryPos);
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sal_Int32 nSepPos = aURI.indexOf( '/' );
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if ( nSepPos == -1 )
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{
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// Cloning because of I can't keep all storage references open
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// MBA with think about a better API...
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const OUString sName = ::rtl::Uri::decode(
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aURI, rtl_UriDecodeStrict, rtl_UriCharClassRelSegment);
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if (sName.isEmpty() && !aURI.isEmpty())
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throw uno::Exception(u"Could not decode URI for stream element."_ustr, nullptr);
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uno::Reference< io::XStream > xStream;
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if (!rxStore->hasByName(sName))
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{
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if (xScriptingSignatureStream.is() && sName == DocumentSignatureHelper::GetScriptingContentSignatureDefaultStreamName())
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{
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xStream = xScriptingSignatureStream;
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uno::Reference<io::XSeekable> xSeekable(xScriptingSignatureStream, uno::UNO_QUERY);
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if (xSeekable.is())
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{
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// Cloned streams are always positioned at the start, do the same in the overlay
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// case.
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xSeekable->seek(0);
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}
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}
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else
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{
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SAL_WARN("xmlsecurity.helper", "expected stream, but not found: " << sName);
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}
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}
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else
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xStream = rxStore->cloneStreamElement( sName );
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if ( !xStream.is() )
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throw uno::RuntimeException();
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xInStream = xStream->getInputStream();
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}
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else
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{
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const OUString aStoreName = ::rtl::Uri::decode(
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aURI.copy( 0, nSepPos ), rtl_UriDecodeStrict, rtl_UriCharClassRelSegment);
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if (aStoreName.isEmpty() && !aURI.isEmpty())
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throw uno::Exception(u"Could not decode URI for stream element."_ustr, nullptr);
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OUString aElement = aURI.copy( nSepPos+1 );
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uno::Reference < embed::XStorage > xSubStore = rxStore->openStorageElement( aStoreName, embed::ElementModes::READ );
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xInStream = OpenInputStream( xSubStore, aElement, xScriptingSignatureStream );
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}
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return xInStream;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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