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+/* -*- 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 <comphelper/docpasswordhelper.hxx>
+#include <unotools/mediadescriptor.hxx>
+#include <comphelper/namedvaluecollection.hxx>
+#include <comphelper/stillreadwriteinteraction.hxx>
+
+#include <com/sun/star/ucb/XContent.hpp>
+#include <com/sun/star/ucb/XCommandEnvironment.hpp>
+#include <com/sun/star/task/XInteractionHandler.hpp>
+#include <com/sun/star/io/XStream.hpp>
+#include <com/sun/star/io/XActiveDataSink.hpp>
+#include <com/sun/star/io/XSeekable.hpp>
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/util/XURLTransformer.hpp>
+#include <com/sun/star/ucb/InteractiveIOException.hpp>
+#include <com/sun/star/ucb/UnsupportedDataSinkException.hpp>
+#include <com/sun/star/ucb/CommandFailedException.hpp>
+#include <com/sun/star/task/XInteractionAbort.hpp>
+#include <com/sun/star/uri/UriReferenceFactory.hpp>
+#include <com/sun/star/uri/XUriReference.hpp>
+#include <com/sun/star/ucb/PostCommandArgument2.hpp>
+#include <com/sun/star/container/XNameAccess.hpp>
+#include <officecfg/Office/Common.hxx>
+#include <ucbhelper/interceptedinteraction.hxx>
+#include <ucbhelper/content.hxx>
+#include <ucbhelper/commandenvironment.hxx>
+#include <ucbhelper/activedatasink.hxx>
+#include <comphelper/processfactory.hxx>
+
+namespace utl {
+
+namespace {
+
+OUString removeFragment(OUString const & uri) {
+ css::uno::Reference< css::uri::XUriReference > ref(
+ css::uri::UriReferenceFactory::create(
+ comphelper::getProcessComponentContext())->
+ parse(uri));
+ if (ref.is()) {
+ ref->clearFragment();
+ return ref->getUriReference();
+ } else {
+ SAL_WARN("comphelper", "cannot parse <" << uri << ">");
+ return uri;
+ }
+}
+
+}
+
+const OUString& MediaDescriptor::PROP_ABORTED()
+{
+ static const OUString sProp("Aborted");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_ASTEMPLATE()
+{
+ static const OUString sProp("AsTemplate");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_COMPONENTDATA()
+{
+ static const OUString sProp("ComponentData");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_DOCUMENTSERVICE()
+{
+ static const OUString sProp("DocumentService");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_ENCRYPTIONDATA()
+{
+ static const OUString sProp("EncryptionData");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_FILENAME()
+{
+ static const OUString sProp("FileName");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_FILTERNAME()
+{
+ static const OUString sProp("FilterName");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_FILTERPROVIDER()
+{
+ static const OUString aProp("FilterProvider");
+ return aProp;
+}
+
+const OUString& MediaDescriptor::PROP_FILTEROPTIONS()
+{
+ static const OUString sProp("FilterOptions");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_FRAME()
+{
+ static const OUString sProp("Frame");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_FRAMENAME()
+{
+ static const OUString sProp("FrameName");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_HIDDEN()
+{
+ static const OUString sProp("Hidden");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_INPUTSTREAM()
+{
+ static const OUString sProp("InputStream");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_INTERACTIONHANDLER()
+{
+ static const OUString sProp("InteractionHandler");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_JUMPMARK()
+{
+ static const OUString sProp("JumpMark");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_MACROEXECUTIONMODE()
+{
+ static const OUString sProp("MacroExecutionMode");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_MEDIATYPE()
+{
+ static const OUString sProp("MediaType");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_MINIMIZED()
+{
+ static const OUString sProp("Minimized");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_NOAUTOSAVE()
+{
+ static const OUString sProp("NoAutoSave");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_OPENNEWVIEW()
+{
+ static const OUString sProp("OpenNewView");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_OUTPUTSTREAM()
+{
+ static const OUString sProp("OutputStream");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_POSTDATA()
+{
+ static const OUString sProp("PostData");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_PREVIEW()
+{
+ static const OUString sProp("Preview");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_READONLY()
+{
+ static const OUString sProp("ReadOnly");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_REFERRER()
+{
+ static const OUString sProp("Referer");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_STATUSINDICATOR()
+{
+ static const OUString sProp("StatusIndicator");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_STREAM()
+{
+ static const OUString sProp("Stream");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_STREAMFOROUTPUT()
+{
+ static const OUString sProp("StreamForOutput");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_TEMPLATENAME()
+{
+ static const OUString sProp("TemplateName");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_TYPENAME()
+{
+ static const OUString sProp("TypeName");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_UCBCONTENT()
+{
+ static const OUString sProp("UCBContent");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_UPDATEDOCMODE()
+{
+ static const OUString sProp("UpdateDocMode");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_URL()
+{
+ static const OUString sProp("URL");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_VERSION()
+{
+ static const OUString sProp("Version");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_DOCUMENTTITLE()
+{
+ static const OUString sProp("DocumentTitle");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_MODEL()
+{
+ static const OUString sProp("Model");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_PASSWORD()
+{
+ static const OUString sProp("Password");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_TITLE()
+{
+ static const OUString sProp("Title");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_SALVAGEDFILE()
+{
+ static const OUString sProp("SalvagedFile");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_VIEWONLY()
+{
+ static const OUString sProp("ViewOnly");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_DOCUMENTBASEURL()
+{
+ static const OUString sProp("DocumentBaseURL");
+ return sProp;
+}
+
+const OUString& MediaDescriptor::PROP_DEEPDETECTION()
+{
+ static const OUString aProp("DeepDetection");
+ return aProp;
+}
+
+MediaDescriptor::MediaDescriptor()
+ : SequenceAsHashMap()
+{
+}
+
+MediaDescriptor::MediaDescriptor(const css::uno::Sequence< css::beans::PropertyValue >& lSource)
+ : SequenceAsHashMap(lSource)
+{
+}
+
+sal_Bool MediaDescriptor::isStreamReadOnly() const
+{
+ static OUString CONTENTSCHEME_FILE( "file" );
+ static OUString CONTENTPROP_ISREADONLY( "IsReadOnly" );
+ static sal_Bool READONLY_FALLBACK = sal_False;
+
+ sal_Bool bReadOnly = READONLY_FALLBACK;
+
+ // check for explicit readonly state
+ const_iterator pIt = find(MediaDescriptor::PROP_READONLY());
+ if (pIt != end())
+ {
+ pIt->second >>= bReadOnly;
+ return bReadOnly;
+ }
+
+ // streams based on post data are readonly by definition
+ pIt = find(MediaDescriptor::PROP_POSTDATA());
+ if (pIt != end())
+ return sal_True;
+
+ // A XStream capsulate XInputStream and XOutputStream ...
+ // If it exists - the file must be open in read/write mode!
+ pIt = find(MediaDescriptor::PROP_STREAM());
+ if (pIt != end())
+ return sal_False;
+
+ // Only file system content provider is able to provide XStream
+ // so for this content impossibility to create XStream triggers
+ // switch to readonly mode.
+ try
+ {
+ css::uno::Reference< css::ucb::XContent > xContent = getUnpackedValueOrDefault(MediaDescriptor::PROP_UCBCONTENT(), css::uno::Reference< css::ucb::XContent >());
+ if (xContent.is())
+ {
+ css::uno::Reference< css::ucb::XContentIdentifier > xId(xContent->getIdentifier(), css::uno::UNO_QUERY);
+ OUString aScheme;
+ if (xId.is())
+ aScheme = xId->getContentProviderScheme();
+
+ if (aScheme.equalsIgnoreAsciiCase(CONTENTSCHEME_FILE))
+ bReadOnly = sal_True;
+ else
+ {
+ ::ucbhelper::Content aContent(xContent, css::uno::Reference< css::ucb::XCommandEnvironment >(), comphelper::getProcessComponentContext());
+ aContent.getPropertyValue(CONTENTPROP_ISREADONLY) >>= bReadOnly;
+ }
+ }
+ }
+ catch(const css::uno::RuntimeException& )
+ { throw; }
+ catch(const css::uno::Exception&)
+ {}
+
+ return bReadOnly;
+}
+
+// ----------------------------------------------------------------------------
+
+css::uno::Any MediaDescriptor::getComponentDataEntry( const OUString& rName ) const
+{
+ css::uno::Any aEntry;
+ comphelper::SequenceAsHashMap::const_iterator aPropertyIter = find( PROP_COMPONENTDATA() );
+ if( aPropertyIter != end() )
+ return comphelper::NamedValueCollection( aPropertyIter->second ).get( rName );
+ return css::uno::Any();
+}
+
+void MediaDescriptor::setComponentDataEntry( const OUString& rName, const css::uno::Any& rValue )
+{
+ if( rValue.hasValue() )
+ {
+ // get or create the 'ComponentData' property entry
+ css::uno::Any& rCompDataAny = operator[]( PROP_COMPONENTDATA() );
+ // insert the value (retain sequence type, create NamedValue elements by default)
+ bool bHasNamedValues = !rCompDataAny.hasValue() || rCompDataAny.has< css::uno::Sequence< css::beans::NamedValue > >();
+ bool bHasPropValues = rCompDataAny.has< css::uno::Sequence< css::beans::PropertyValue > >();
+ OSL_ENSURE( bHasNamedValues || bHasPropValues, "MediaDescriptor::setComponentDataEntry - incompatible 'ComponentData' property in media descriptor" );
+ if( bHasNamedValues || bHasPropValues )
+ {
+ // insert or overwrite the passed value
+ comphelper::SequenceAsHashMap aCompDataMap( rCompDataAny );
+ aCompDataMap[ rName ] = rValue;
+ // write back the sequence (restore sequence with correct element type)
+ rCompDataAny = aCompDataMap.getAsConstAny( bHasPropValues );
+ }
+ }
+ else
+ {
+ // if an empty Any is passed, clear the entry
+ clearComponentDataEntry( rName );
+ }
+}
+
+void MediaDescriptor::clearComponentDataEntry( const OUString& rName )
+{
+ comphelper::SequenceAsHashMap::iterator aPropertyIter = find( PROP_COMPONENTDATA() );
+ if( aPropertyIter != end() )
+ {
+ css::uno::Any& rCompDataAny = aPropertyIter->second;
+ bool bHasNamedValues = rCompDataAny.has< css::uno::Sequence< css::beans::NamedValue > >();
+ bool bHasPropValues = rCompDataAny.has< css::uno::Sequence< css::beans::PropertyValue > >();
+ OSL_ENSURE( bHasNamedValues || bHasPropValues, "MediaDescriptor::clearComponentDataEntry - incompatible 'ComponentData' property in media descriptor" );
+ if( bHasNamedValues || bHasPropValues )
+ {
+ // remove the value with the passed name
+ comphelper::SequenceAsHashMap aCompDataMap( rCompDataAny );
+ aCompDataMap.erase( rName );
+ // write back the sequence, or remove it completely if it is empty
+ if( aCompDataMap.empty() )
+ erase( aPropertyIter );
+ else
+ rCompDataAny = aCompDataMap.getAsConstAny( bHasPropValues );
+ }
+ }
+}
+
+::com::sun::star::uno::Sequence< ::com::sun::star::beans::NamedValue > MediaDescriptor::requestAndVerifyDocPassword(
+ comphelper::IDocPasswordVerifier& rVerifier,
+ comphelper::DocPasswordRequestType eRequestType,
+ const ::std::vector< OUString >* pDefaultPasswords )
+{
+ css::uno::Sequence< css::beans::NamedValue > aMediaEncData = getUnpackedValueOrDefault(
+ PROP_ENCRYPTIONDATA(), css::uno::Sequence< css::beans::NamedValue >() );
+ OUString aMediaPassword = getUnpackedValueOrDefault(
+ PROP_PASSWORD(), OUString() );
+ css::uno::Reference< css::task::XInteractionHandler > xInteractHandler = getUnpackedValueOrDefault(
+ PROP_INTERACTIONHANDLER(), css::uno::Reference< css::task::XInteractionHandler >() );
+ OUString aDocumentName = getUnpackedValueOrDefault(
+ PROP_URL(), OUString() );
+
+ bool bIsDefaultPassword = false;
+ css::uno::Sequence< css::beans::NamedValue > aEncryptionData = comphelper::DocPasswordHelper::requestAndVerifyDocPassword(
+ rVerifier, aMediaEncData, aMediaPassword, xInteractHandler, aDocumentName, eRequestType, pDefaultPasswords, &bIsDefaultPassword );
+
+ erase( PROP_PASSWORD() );
+ erase( PROP_ENCRYPTIONDATA() );
+
+ // insert valid password into media descriptor (but not a default password)
+ if( (aEncryptionData.getLength() > 0) && !bIsDefaultPassword )
+ (*this)[ PROP_ENCRYPTIONDATA() ] <<= aEncryptionData;
+
+ return aEncryptionData;
+}
+
+sal_Bool MediaDescriptor::addInputStream()
+{
+ return impl_addInputStream( sal_True );
+}
+
+/*-----------------------------------------------*/
+sal_Bool MediaDescriptor::addInputStreamOwnLock()
+{
+ return impl_addInputStream(
+ officecfg::Office::Common::Misc::UseDocumentSystemFileLocking::get());
+}
+
+/*-----------------------------------------------*/
+sal_Bool MediaDescriptor::impl_addInputStream( sal_Bool bLockFile )
+{
+ // check for an already existing stream item first
+ const_iterator pIt = find(MediaDescriptor::PROP_INPUTSTREAM());
+ if (pIt != end())
+ return sal_True;
+
+ try
+ {
+ // No stream available - create a new one
+ // a) data comes as PostData ...
+ pIt = find(MediaDescriptor::PROP_POSTDATA());
+ if (pIt != end())
+ {
+ const css::uno::Any& rPostData = pIt->second;
+ css::uno::Reference< css::io::XInputStream > xPostData;
+ rPostData >>= xPostData;
+
+ return impl_openStreamWithPostData( xPostData );
+ }
+
+ // b) ... or we must get it from the given URL
+ OUString sURL = getUnpackedValueOrDefault(MediaDescriptor::PROP_URL(), OUString());
+ if (sURL.isEmpty())
+ throw css::uno::Exception("Found no URL.",
+ css::uno::Reference< css::uno::XInterface >());
+
+ return impl_openStreamWithURL( removeFragment(sURL), bLockFile );
+ }
+ catch(const css::uno::Exception& ex)
+ {
+ SAL_WARN(
+ "comphelper", "invalid MediaDescriptor detected: " << ex.Message);
+ return false;
+ }
+}
+
+sal_Bool MediaDescriptor::impl_openStreamWithPostData( const css::uno::Reference< css::io::XInputStream >& _rxPostData )
+ throw(::com::sun::star::uno::RuntimeException)
+{
+ if ( !_rxPostData.is() )
+ throw css::lang::IllegalArgumentException("Found invalid PostData.",
+ css::uno::Reference< css::uno::XInterface >(), 1);
+
+ // PostData can't be used in read/write mode!
+ (*this)[MediaDescriptor::PROP_READONLY()] <<= sal_True;
+
+ // prepare the environment
+ css::uno::Reference< css::task::XInteractionHandler > xInteraction = getUnpackedValueOrDefault(
+ MediaDescriptor::PROP_INTERACTIONHANDLER(),
+ css::uno::Reference< css::task::XInteractionHandler >());
+ css::uno::Reference< css::ucb::XProgressHandler > xProgress;
+ ::ucbhelper::CommandEnvironment* pCommandEnv = new ::ucbhelper::CommandEnvironment(xInteraction, xProgress);
+ css::uno::Reference< css::ucb::XCommandEnvironment > xCommandEnv(static_cast< css::ucb::XCommandEnvironment* >(pCommandEnv), css::uno::UNO_QUERY);
+
+ // media type
+ OUString sMediaType = getUnpackedValueOrDefault(MediaDescriptor::PROP_MEDIATYPE(), OUString());
+ if (sMediaType.isEmpty())
+ {
+ sMediaType = "application/x-www-form-urlencoded";
+ (*this)[MediaDescriptor::PROP_MEDIATYPE()] <<= sMediaType;
+ }
+
+ // url
+ OUString sURL( getUnpackedValueOrDefault( PROP_URL(), OUString() ) );
+
+ css::uno::Reference< css::io::XInputStream > xResultStream;
+ try
+ {
+ // seek PostData stream to the beginning
+ css::uno::Reference< css::io::XSeekable > xSeek( _rxPostData, css::uno::UNO_QUERY );
+ if ( xSeek.is() )
+ xSeek->seek( 0 );
+
+ // a content for the URL
+ ::ucbhelper::Content aContent( sURL, xCommandEnv, comphelper::getProcessComponentContext() );
+
+ // use post command
+ css::ucb::PostCommandArgument2 aPostArgument;
+ aPostArgument.Source = _rxPostData;
+ css::uno::Reference< css::io::XActiveDataSink > xSink( new ucbhelper::ActiveDataSink );
+ aPostArgument.Sink = xSink;
+ aPostArgument.MediaType = sMediaType;
+ aPostArgument.Referer = getUnpackedValueOrDefault( PROP_REFERRER(), OUString() );
+
+ OUString sCommandName( "post" );
+ aContent.executeCommand( sCommandName, css::uno::makeAny( aPostArgument ) );
+
+ // get result
+ xResultStream = xSink->getInputStream();
+ }
+ catch( const css::uno::Exception& )
+ {
+ }
+
+ // success?
+ if ( !xResultStream.is() )
+ {
+ OSL_FAIL( "no valid reply to the HTTP-Post" );
+ return sal_False;
+ }
+
+ (*this)[MediaDescriptor::PROP_INPUTSTREAM()] <<= xResultStream;
+ return sal_True;
+}
+
+/*-----------------------------------------------*/
+sal_Bool MediaDescriptor::impl_openStreamWithURL( const OUString& sURL, sal_Bool bLockFile )
+ throw(::com::sun::star::uno::RuntimeException)
+{
+ // prepare the environment
+ css::uno::Reference< css::task::XInteractionHandler > xOrgInteraction = getUnpackedValueOrDefault(
+ MediaDescriptor::PROP_INTERACTIONHANDLER(),
+ css::uno::Reference< css::task::XInteractionHandler >());
+
+ comphelper::StillReadWriteInteraction* pInteraction = new comphelper::StillReadWriteInteraction(xOrgInteraction);
+ css::uno::Reference< css::task::XInteractionHandler > xInteraction(static_cast< css::task::XInteractionHandler* >(pInteraction), css::uno::UNO_QUERY);
+
+ css::uno::Reference< css::ucb::XProgressHandler > xProgress;
+ ::ucbhelper::CommandEnvironment* pCommandEnv = new ::ucbhelper::CommandEnvironment(xInteraction, xProgress);
+ css::uno::Reference< css::ucb::XCommandEnvironment > xCommandEnv(static_cast< css::ucb::XCommandEnvironment* >(pCommandEnv), css::uno::UNO_QUERY);
+
+ // try to create the content
+ // no content -> no stream => return immediately with FALSE
+ ::ucbhelper::Content aContent;
+ css::uno::Reference< css::ucb::XContent > xContent;
+ try
+ {
+ aContent = ::ucbhelper::Content(sURL, xCommandEnv, comphelper::getProcessComponentContext());
+ xContent = aContent.get();
+ }
+ catch(const css::uno::RuntimeException&)
+ { throw; }
+ catch(const css::ucb::ContentCreationException& e)
+ {
+ SAL_WARN(
+ "comphelper",
+ "caught ContentCreationException \"" << e.Message
+ << "\" while opening <" << sURL << ">");
+ return sal_False; // TODO error handling
+ }
+ catch(const css::uno::Exception& e)
+ {
+ SAL_WARN(
+ "comphelper",
+ "caught Exception \"" << e.Message << "\" while opening <"
+ << sURL << ">");
+ return sal_False; // TODO error handling
+ }
+
+ // try to open the file in read/write mode
+ // (if its allowed to do so).
+ // But handle errors in a "hidden mode". Because
+ // we try it readonly later - if read/write isnt an option.
+ css::uno::Reference< css::io::XStream > xStream ;
+ css::uno::Reference< css::io::XInputStream > xInputStream;
+
+ sal_Bool bReadOnly = sal_False;
+ sal_Bool bModeRequestedExplicitly = sal_False;
+ const_iterator pIt = find(MediaDescriptor::PROP_READONLY());
+ if (pIt != end())
+ {
+ pIt->second >>= bReadOnly;
+ bModeRequestedExplicitly = sal_True;
+ }
+
+ if ( !bReadOnly && bLockFile )
+ {
+ try
+ {
+ // TODO: use "special" still interaction to supress error messages
+ xStream = aContent.openWriteableStream();
+ if (xStream.is())
+ xInputStream = xStream->getInputStream();
+ }
+ catch(const css::uno::RuntimeException&)
+ { throw; }
+ catch(const css::uno::Exception& e)
+ {
+ // ignore exception, if reason was problem reasoned on
+ // open it in WRITEABLE mode! Then we try it READONLY
+ // later a second time.
+ // All other errors must be handled as real error an
+ // break this method.
+ if (!pInteraction->wasWriteError() || bModeRequestedExplicitly)
+ {
+ SAL_WARN(
+ "comphelper",
+ "caught Exception \"" << e.Message
+ << "\" while opening <" << sURL << ">");
+ return sal_False;
+ }
+ xStream.clear();
+ xInputStream.clear();
+ }
+ }
+
+ // If opening of the stream in read/write mode wasnt allowed
+ // or failed by an error - we must try it in readonly mode.
+ if (!xInputStream.is())
+ {
+ OUString aScheme;
+
+ try
+ {
+ css::uno::Reference< css::ucb::XContentIdentifier > xContId(
+ aContent.get().is() ? aContent.get()->getIdentifier() : 0 );
+
+ if ( xContId.is() )
+ aScheme = xContId->getContentProviderScheme();
+
+ // Only file system content provider is able to provide XStream
+ // so for this content impossibility to create XStream triggers
+ // switch to readonly mode in case of opening with locking on
+ if( bLockFile && aScheme.equalsIgnoreAsciiCase("file") )
+ bReadOnly = sal_True;
+ else
+ {
+ sal_Bool bRequestReadOnly = bReadOnly;
+ aContent.getPropertyValue("IsReadOnly") >>= bReadOnly;
+ if ( bReadOnly && !bRequestReadOnly && bModeRequestedExplicitly )
+ return sal_False; // the document is explicitly requested with WRITEABLE mode
+ }
+ }
+ catch(const css::uno::RuntimeException&)
+ { throw; }
+ catch(const css::uno::Exception&)
+ { /* no error handling if IsReadOnly property does not exist for UCP */ }
+
+ if ( bReadOnly )
+ (*this)[MediaDescriptor::PROP_READONLY()] <<= bReadOnly;
+
+ pInteraction->resetInterceptions();
+ pInteraction->resetErrorStates();
+ try
+ {
+ // all the contents except file-URLs should be opened as usual
+ if ( bLockFile || !aScheme.equalsIgnoreAsciiCase("file") )
+ xInputStream = aContent.openStream();
+ else
+ xInputStream = aContent.openStreamNoLock();
+ }
+ catch(const css::uno::RuntimeException&)
+ { throw; }
+ catch(const css::uno::Exception& e)
+ {
+ SAL_WARN(
+ "comphelper",
+ "caught Exception \"" << e.Message << "\" while opening <"
+ << sURL << ">");
+ return sal_False;
+ }
+ }
+
+ // add streams to the descriptor
+ if (xContent.is())
+ (*this)[MediaDescriptor::PROP_UCBCONTENT()] <<= xContent;
+ if (xStream.is())
+ (*this)[MediaDescriptor::PROP_STREAM()] <<= xStream;
+ if (xInputStream.is())
+ (*this)[MediaDescriptor::PROP_INPUTSTREAM()] <<= xInputStream;
+
+ // At least we need an input stream. The r/w stream is optional ...
+ return xInputStream.is();
+}
+
+} // namespace comphelper
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */