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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 <sal/log.hxx>
#include <unotools/configmgr.hxx>
#include <unotools/mediadescriptor.hxx>
#include <unotools/securityoptions.hxx>
#include <unotools/ucbhelper.hxx>
#include <comphelper/namedvaluecollection.hxx>
#include <comphelper/stillreadwriteinteraction.hxx>
#include <com/sun/star/ucb/ContentCreationException.hpp>
#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/IllegalArgumentException.hpp>
#include <com/sun/star/uri/UriReferenceFactory.hpp>
#include <com/sun/star/uri/XUriReference.hpp>
#include <com/sun/star/ucb/PostCommandArgument2.hpp>
#include <officecfg/Office/Common.hxx>
#include <ucbhelper/content.hxx>
#include <ucbhelper/commandenvironment.hxx>
#include <ucbhelper/activedatasink.hxx>
#include <comphelper/processfactory.hxx>
#include <tools/urlobj.hxx>
#include <osl/diagnose.h>
#include <tools/diagnose_ex.h>
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("unotools.misc", "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_AUTHENTICATIONHANDLER()
{
static const OUString sProp("AuthenticationHandler");
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_REPLACEABLE()
{
static const OUString sProp("Replaceable");
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_SUGGESTEDSAVEASNAME()
{
static const OUString sProp("SuggestedSaveAsName");
return sProp;
}
MediaDescriptor::MediaDescriptor()
: SequenceAsHashMap()
{
}
MediaDescriptor::MediaDescriptor(const css::uno::Sequence< css::beans::PropertyValue >& lSource)
: SequenceAsHashMap(lSource)
{
}
bool MediaDescriptor::isStreamReadOnly() const
{
bool bReadOnly = false;
// 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 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 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();
OUString aScheme;
if (xId.is())
aScheme = xId->getContentProviderScheme();
if (aScheme.equalsIgnoreAsciiCase("file"))
bReadOnly = true;
else
{
::ucbhelper::Content aContent(xContent,
utl::UCBContentHelper::getDefaultCommandEnvironment(),
comphelper::getProcessComponentContext());
aContent.getPropertyValue("IsReadOnly") >>= bReadOnly;
}
}
}
catch(const css::uno::RuntimeException& )
{ throw; }
catch(const css::uno::Exception&)
{}
return bReadOnly;
}
css::uno::Any MediaDescriptor::getComponentDataEntry( const OUString& rName ) const
{
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() )
return;
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 );
}
}
css::uno::Sequence< css::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 encryption info into media descriptor
// TODO
if( aEncryptionData.hasElements() )
(*this)[ PROP_ENCRYPTIONDATA() ] <<= aEncryptionData;
return aEncryptionData;
}
bool MediaDescriptor::addInputStream()
{
return impl_addInputStream( true );
}
/*-----------------------------------------------*/
bool MediaDescriptor::addInputStreamOwnLock()
{
const bool bLock = !utl::ConfigManager::IsFuzzing()
&& officecfg::Office::Common::Misc::UseDocumentSystemFileLocking::get();
return impl_addInputStream(bLock);
}
/*-----------------------------------------------*/
bool MediaDescriptor::impl_addInputStream( bool bLockFile )
{
// check for an already existing stream item first
const_iterator pIt = find(MediaDescriptor::PROP_INPUTSTREAM());
if (pIt != end())
return 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&)
{
TOOLS_WARN_EXCEPTION("unotools.misc", "invalid MediaDescriptor detected");
return false;
}
}
bool MediaDescriptor::impl_openStreamWithPostData( const css::uno::Reference< css::io::XInputStream >& _rxPostData )
{
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()] <<= 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() );
aContent.executeCommand( "post", 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 false;
}
(*this)[MediaDescriptor::PROP_INPUTSTREAM()] <<= xResultStream;
return true;
}
/*-----------------------------------------------*/
bool MediaDescriptor::impl_openStreamWithURL( const OUString& sURL, bool bLockFile )
{
OUString referer(getUnpackedValueOrDefault(PROP_REFERRER(), OUString()));
if (SvtSecurityOptions().isUntrustedReferer(referer)) {
return false;
}
// prepare the environment
css::uno::Reference< css::task::XInteractionHandler > xOrgInteraction = getUnpackedValueOrDefault(
MediaDescriptor::PROP_INTERACTIONHANDLER(),
css::uno::Reference< css::task::XInteractionHandler >());
css::uno::Reference< css::task::XInteractionHandler > xAuthenticationInteraction = getUnpackedValueOrDefault(
MediaDescriptor::PROP_AUTHENTICATIONHANDLER(),
css::uno::Reference< css::task::XInteractionHandler >());
comphelper::StillReadWriteInteraction* pInteraction = new comphelper::StillReadWriteInteraction(xOrgInteraction,xAuthenticationInteraction);
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&)
{
TOOLS_WARN_EXCEPTION("unotools.misc", "url: '" << sURL << "'");
return false; // TODO error handling
}
catch(const css::uno::Exception&)
{
TOOLS_WARN_EXCEPTION("unotools.misc", "url: '" << sURL << "'");
return false; // TODO error handling
}
// try to open the file in read/write mode
// (if it's allowed to do so).
// But handle errors in a "hidden mode". Because
// we try it readonly later - if read/write is not an option.
css::uno::Reference< css::io::XStream > xStream;
css::uno::Reference< css::io::XInputStream > xInputStream;
bool bReadOnly = false;
bool bModeRequestedExplicitly = false;
const_iterator pIt = find(MediaDescriptor::PROP_READONLY());
if (pIt != end())
{
pIt->second >>= bReadOnly;
bModeRequestedExplicitly = true;
}
if ( !bReadOnly && bLockFile )
{
try
{
// TODO: use "special" still interaction to suppress error messages
xStream = aContent.openWriteableStream();
if (xStream.is())
xInputStream = xStream->getInputStream();
}
catch(const css::uno::RuntimeException&)
{ throw; }
catch(const css::uno::Exception&)
{
css::uno::Any ex( cppu::getCaughtException() );
// ignore exception, if reason was problem reasoned on
// open it in WRITABLE 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("unotools.misc","url: '" << sURL << "' " << exceptionToString(ex));
// If the protocol is webdav, then we need to treat the stream as readonly, even if the
// operation was requested as read/write explicitly (the WebDAV UCB implementation is monodirectional
// read or write not both at the same time).
if ( !INetURLObject( sURL ).isAnyKnownWebDAVScheme() )
return false;
}
xStream.clear();
xInputStream.clear();
}
}
// If opening of the stream in read/write mode was not 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() : nullptr );
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 = true;
else
{
bool bRequestReadOnly = bReadOnly;
aContent.getPropertyValue("IsReadOnly") >>= bReadOnly;
if ( bReadOnly && !bRequestReadOnly && bModeRequestedExplicitly )
return false; // the document is explicitly requested with WRITABLE 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&)
{
TOOLS_INFO_EXCEPTION("unotools.misc","url: '" << sURL << "'");
return 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
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