f0a9ca24fd
For now, this checks for a trusted referer (if the BlockUntrustedRefererLinks configuration prop is set) in utl::MediaDescriptor::impl_openStreamWithURL and SvxBrushItem::GetGraphicObject. Checking in additional places will probably be necessary to block /all/ unwanted communication. Also, some places marked /*TODO?*/ currently pass in an empty referer (which is always considered trusted) and will probably need to be adapted. Ideally, Referer URIs would never be empty (and consistently use something like <private:user> for cases where access is explicitly initiated by the user and should never be blocked), but that's a very daunting task, so start small by identifying the places that potentially need blocking and adding appropriate Referer URIs there. Also, Referer information should always be computed as freshly as possible from the context in which an access attempt is made, but, again, always carrying the information from the context all the way to the relevant functions is a very daunting task, so for now store the information upon object instantiation in some cases (SvxBrushItem, SdrGrafObj, ...). The Referer URI (css.document.MediaDescriptor property; SID_REFERER) was already used to track macro execution, and there is one place in SfxApplication::OpenDocExec_Impl where opening of hyperlinks (explicitly clicked by the user) is done that needs the current document's URI as Referer to check execution of macro URIs but needs an empty (or <private:user>, see above) Referer to not block non-macro URIs. Special code has been added there to handle that. Change-Id: Iafbdc07a9fe925d9ee580d4f5778448f18f2ebd9
64 lines
2.5 KiB
C++
64 lines
2.5 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 <retrieveinputstreamconsumer.hxx>
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#include <ndgrf.hxx>
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#include <retrieveinputstream.hxx>
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#include <swthreadmanager.hxx>
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/* class to provide creation of a thread to retrieve an input stream given by
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an URL and to consume the retrieved input stream.
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#i73788#
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*/
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SwAsyncRetrieveInputStreamThreadConsumer::SwAsyncRetrieveInputStreamThreadConsumer(
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SwGrfNode& rGrfNode )
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: mrGrfNode( rGrfNode ),
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mnThreadID( 0 )
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{
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}
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SwAsyncRetrieveInputStreamThreadConsumer::~SwAsyncRetrieveInputStreamThreadConsumer()
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{
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SwThreadManager::GetThreadManager().RemoveThread( mnThreadID );
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}
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void SwAsyncRetrieveInputStreamThreadConsumer::CreateThread( const OUString& rURL, const OUString& rReferer )
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{
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// Get new data container for input stream data
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SwRetrievedInputStreamDataManager::tDataKey nDataKey =
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SwRetrievedInputStreamDataManager::GetManager().ReserveData(
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mrGrfNode.GetThreadConsumer() );
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rtl::Reference< ObservableThread > pNewThread =
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SwAsyncRetrieveInputStreamThread::createThread( nDataKey, rURL, rReferer );
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// Add thread to thread manager and pass ownership of thread to thread manager.
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mnThreadID = SwThreadManager::GetThreadManager().AddThread( pNewThread );
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}
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void SwAsyncRetrieveInputStreamThreadConsumer::ApplyInputStream(
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com::sun::star::uno::Reference<com::sun::star::io::XInputStream> xInputStream,
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const sal_Bool bIsStreamReadOnly )
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{
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mrGrfNode.ApplyInputStream( xInputStream, bIsStreamReadOnly );
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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