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, 237 insertions, 0 deletions

diff --git a/unotools/source/ucbhelper/ucbstreamhelper.cxx b/unotools/source/ucbhelper/ucbstreamhelper.cxx
new file mode 100644
index 000000000..e3437a864
--- /dev/null
+++ b/unotools/source/ucbhelper/ucbstreamhelper.cxx
@@ -0,0 +1,237 @@
+/* -*- 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 <rtl/ustring.hxx>
+#include <unotools/ucbstreamhelper.hxx>
+#include <comphelper/processfactory.hxx>
+#include <com/sun/star/task/InteractionHandler.hpp>
+#include <com/sun/star/ucb/ContentCreationException.hpp>
+#include <com/sun/star/ucb/CommandAbortedException.hpp>
+#include <com/sun/star/ucb/InsertCommandArgument.hpp>
+#include <com/sun/star/beans/PropertyValue.hpp>
+
+#include <comphelper/simplefileaccessinteraction.hxx>
+#include <ucbhelper/content.hxx>
+#include <unotools/streamwrap.hxx>
+#include "ucblockbytes.hxx"
+
+namespace com::sun::star::ucb { class XCommandEnvironment; }
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::io;
+using namespace ::com::sun::star::ucb;
+using namespace ::com::sun::star::task;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::beans;
+
+namespace utl
+{
+
+static std::unique_ptr<SvStream> lcl_CreateStream( const OUString& rFileName, StreamMode eOpenMode,
+                                   const Reference < XInteractionHandler >& xInteractionHandler,
+                                   bool bEnsureFileExists )
+{
+    std::unique_ptr<SvStream> pStream;
+    UcbLockBytesRef xLockBytes;
+    if ( eOpenMode & StreamMode::WRITE )
+    {
+        bool bTruncate = bool( eOpenMode & StreamMode::TRUNC );
+        if ( bTruncate )
+        {
+            try
+            {
+                // truncate is implemented with deleting the original file
+                ::ucbhelper::Content aCnt(
+                    rFileName, Reference < XCommandEnvironment >(),
+                    comphelper::getProcessComponentContext() );
+                aCnt.executeCommand( "delete", css::uno::Any( true ) );
+            }
+
+            catch ( const CommandAbortedException& )
+            {
+                // couldn't truncate/delete
+            }
+            catch ( const ContentCreationException& )
+            {
+            }
+            catch ( const Exception& )
+            {
+            }
+        }
+
+        if ( bEnsureFileExists || bTruncate )
+        {
+            try
+            {
+                // make sure that the desired file exists before trying to open
+                SvMemoryStream aStream(0,0);
+                rtl::Reference<::utl::OInputStreamWrapper> xInput = new ::utl::OInputStreamWrapper( aStream );
+
+                ::ucbhelper::Content aContent(
+                    rFileName, Reference < XCommandEnvironment >(),
+                    comphelper::getProcessComponentContext() );
+                InsertCommandArgument aInsertArg;
+                aInsertArg.Data = xInput;
+
+                aInsertArg.ReplaceExisting = false;
+                Any aCmdArg;
+                aCmdArg <<= aInsertArg;
+                aContent.executeCommand( "insert", aCmdArg );
+            }
+
+            // it is NOT an error when the stream already exists and no truncation was desired
+            catch ( const CommandAbortedException& )
+            {
+                // currently never an error is detected !
+            }
+            catch ( const ContentCreationException& )
+            {
+            }
+            catch ( const Exception& )
+            {
+            }
+        }
+    }
+
+    try
+    {
+        // create LockBytes using UCB
+        ::ucbhelper::Content aContent(
+            rFileName, Reference < XCommandEnvironment >(),
+            comphelper::getProcessComponentContext() );
+        xLockBytes = UcbLockBytes::CreateLockBytes( aContent.get(), Sequence < PropertyValue >(),
+                                                    eOpenMode, xInteractionHandler );
+        if ( xLockBytes.is() )
+        {
+            pStream.reset( new SvStream( xLockBytes.get() ) );
+            pStream->SetBufferSize( 4096 );
+            pStream->SetError( xLockBytes->GetError() );
+        }
+    }
+    catch ( const CommandAbortedException& )
+    {
+    }
+    catch ( const ContentCreationException& )
+    {
+    }
+    catch ( const Exception& )
+    {
+    }
+
+    return pStream;
+}
+
+std::unique_ptr<SvStream> UcbStreamHelper::CreateStream(const OUString& rFileName, StreamMode eOpenMode, css::uno::Reference<css::awt::XWindow> xParentWin)
+{
+    // related tdf#99312
+    // create a specialized interaction handler to manages Web certificates and Web credentials when needed
+    Reference< XInteractionHandler > xIH(
+        css::task::InteractionHandler::createWithParent(comphelper::getProcessComponentContext(), xParentWin));
+    Reference<XInteractionHandler> xIHScoped(new comphelper::SimpleFileAccessInteraction(xIH));
+
+    return lcl_CreateStream( rFileName, eOpenMode, xIHScoped, true /* bEnsureFileExists */ );
+}
+
+std::unique_ptr<SvStream> UcbStreamHelper::CreateStream(const OUString& rFileName, StreamMode eOpenMode,
+                                                        bool bFileExists, css::uno::Reference<css::awt::XWindow> xParentWin)
+{
+    // related tdf#99312
+    // create a specialized interaction handler to manages Web certificates and Web credentials when needed
+    Reference< XInteractionHandler > xIH(
+        css::task::InteractionHandler::createWithParent(comphelper::getProcessComponentContext(), xParentWin));
+    Reference<XInteractionHandler> xIHScoped(new comphelper::SimpleFileAccessInteraction(xIH));
+    return lcl_CreateStream( rFileName, eOpenMode, xIHScoped,!bFileExists );
+}
+
+
+std::unique_ptr<SvStream> UcbStreamHelper::CreateStream( const Reference < XInputStream >& xStream )
+{
+    std::unique_ptr<SvStream> pStream;
+    UcbLockBytesRef xLockBytes = UcbLockBytes::CreateInputLockBytes( xStream );
+    if ( xLockBytes.is() )
+    {
+        pStream.reset( new SvStream( xLockBytes.get() ) );
+        pStream->SetBufferSize( 4096 );
+        pStream->SetError( xLockBytes->GetError() );
+    }
+
+    return pStream;
+}
+
+std::unique_ptr<SvStream> UcbStreamHelper::CreateStream( const Reference < XStream >& xStream )
+{
+    std::unique_ptr<SvStream> pStream;
+    if ( xStream->getOutputStream().is() )
+    {
+        UcbLockBytesRef xLockBytes = UcbLockBytes::CreateLockBytes( xStream );
+        if ( xLockBytes.is() )
+        {
+            pStream.reset( new SvStream( xLockBytes.get() ) );
+            pStream->SetBufferSize( 4096 );
+            pStream->SetError( xLockBytes->GetError() );
+        }
+    }
+    else
+        return CreateStream( xStream->getInputStream() );
+
+    return pStream;
+}
+
+std::unique_ptr<SvStream> UcbStreamHelper::CreateStream( const Reference < XInputStream >& xStream, bool bCloseStream )
+{
+    std::unique_ptr<SvStream> pStream;
+    UcbLockBytesRef xLockBytes = UcbLockBytes::CreateInputLockBytes( xStream );
+    if ( xLockBytes.is() )
+    {
+        if ( !bCloseStream )
+            xLockBytes->setDontClose();
+
+        pStream.reset( new SvStream( xLockBytes.get() ) );
+        pStream->SetBufferSize( 4096 );
+        pStream->SetError( xLockBytes->GetError() );
+    }
+
+    return pStream;
+};
+
+std::unique_ptr<SvStream> UcbStreamHelper::CreateStream( const Reference < XStream >& xStream, bool bCloseStream )
+{
+    std::unique_ptr<SvStream> pStream;
+    if ( xStream->getOutputStream().is() )
+    {
+        UcbLockBytesRef xLockBytes = UcbLockBytes::CreateLockBytes( xStream );
+        if ( xLockBytes.is() )
+        {
+            if ( !bCloseStream )
+                xLockBytes->setDontClose();
+
+            pStream.reset( new SvStream( xLockBytes.get() ) );
+            pStream->SetBufferSize( 4096 );
+            pStream->SetError( xLockBytes->GetError() );
+        }
+    }
+    else
+        return CreateStream( xStream->getInputStream(), bCloseStream );
+
+    return pStream;
+};
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */