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Diffstat (limited to '')
| -rw-r--r-- | ucb/source/ucp/tdoc/tdoc_provider.cxx | 605 |
1 files changed, 605 insertions, 0 deletions
diff --git a/ucb/source/ucp/tdoc/tdoc_provider.cxx b/ucb/source/ucp/tdoc/tdoc_provider.cxx new file mode 100644 index 000000000..23fd324a5 --- /dev/null +++ b/ucb/source/ucp/tdoc/tdoc_provider.cxx @@ -0,0 +1,605 @@ +/* -*- 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 . + */ + + +/************************************************************************** + TODO + ************************************************************************** + + *************************************************************************/ + +#include <tools/diagnose_ex.h> + +#include <com/sun/star/embed/InvalidStorageException.hpp> +#include <com/sun/star/embed/StorageWrappedTargetException.hpp> +#include <com/sun/star/io/IOException.hpp> +#include <com/sun/star/ucb/IllegalIdentifierException.hpp> +#include <cppuhelper/queryinterface.hxx> +#include <ucbhelper/contentidentifier.hxx> +#include <ucbhelper/macros.hxx> + +#include "tdoc_provider.hxx" +#include "tdoc_content.hxx" +#include "tdoc_uri.hxx" +#include "tdoc_docmgr.hxx" +#include "tdoc_storage.hxx" + +using namespace com::sun::star; +using namespace tdoc_ucp; + + +// ContentProvider Implementation. + + +ContentProvider::ContentProvider( + const uno::Reference< uno::XComponentContext >& rxContext ) +: ::ucbhelper::ContentProviderImplHelper( rxContext ), + m_xDocsMgr( new OfficeDocumentsManager( rxContext, this ) ), + m_xStgElemFac( new StorageElementFactory( rxContext, m_xDocsMgr ) ) +{ +} + + +// virtual +ContentProvider::~ContentProvider() +{ + if ( m_xDocsMgr.is() ) + m_xDocsMgr->destroy(); +} + + +// XInterface methods. +void SAL_CALL ContentProvider::acquire() + noexcept +{ + OWeakObject::acquire(); +} + +void SAL_CALL ContentProvider::release() + noexcept +{ + OWeakObject::release(); +} + +css::uno::Any SAL_CALL ContentProvider::queryInterface( const css::uno::Type & rType ) +{ + css::uno::Any aRet = cppu::queryInterface( rType, + static_cast< lang::XTypeProvider* >(this), + static_cast< lang::XServiceInfo* >(this), + static_cast< ucb::XContentProvider* >(this), + static_cast< frame::XTransientDocumentsDocumentContentIdentifierFactory* >(this), + static_cast< frame::XTransientDocumentsDocumentContentFactory* >(this) + ); + return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType ); +} + +// XTypeProvider methods. + + +XTYPEPROVIDER_IMPL_5( ContentProvider, + lang::XTypeProvider, + lang::XServiceInfo, + ucb::XContentProvider, + frame::XTransientDocumentsDocumentContentIdentifierFactory, + frame::XTransientDocumentsDocumentContentFactory ); + + +// XServiceInfo methods. +OUString SAL_CALL ContentProvider::getImplementationName() +{ + return "com.sun.star.comp.ucb.TransientDocumentsContentProvider"; +} + +sal_Bool SAL_CALL ContentProvider::supportsService( const OUString& ServiceName ) +{ + return cppu::supportsService( this, ServiceName ); +} + +css::uno::Sequence< OUString > SAL_CALL ContentProvider::getSupportedServiceNames() +{ + return { "com.sun.star.ucb.TransientDocumentsContentProvider" }; +} + + +// Service factory implementation. + + +extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface* +ucb_tdoc_ContentProvider_get_implementation( + css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&) +{ + return cppu::acquire(new ContentProvider(context)); +} + +// XContentProvider methods. + + +// virtual +uno::Reference< ucb::XContent > SAL_CALL +ContentProvider::queryContent( + const uno::Reference< ucb::XContentIdentifier >& Identifier ) +{ + Uri aUri( Identifier->getContentIdentifier() ); + if ( !aUri.isValid() ) + throw ucb::IllegalIdentifierException( + "Invalid URL!", + Identifier ); + + // Normalize URI. + uno::Reference< ucb::XContentIdentifier > xCanonicId + = new ::ucbhelper::ContentIdentifier( aUri.getUri() ); + + osl::MutexGuard aGuard( m_aMutex ); + + // Check, if a content with given id already exists... + uno::Reference< ucb::XContent > xContent + = queryExistingContent( xCanonicId ); + + if ( !xContent.is() ) + { + // Create a new content. + xContent = Content::create( m_xContext, this, xCanonicId ); + registerNewContent( xContent ); + } + + return xContent; +} + + +// XTransientDocumentsDocumentContentIdentifierFactory methods. + +uno::Reference<ucb::XContentIdentifier> SAL_CALL +ContentProvider::createDocumentContentIdentifier( + uno::Reference<frame::XModel> const& xModel) +{ + // model -> id -> content identifier -> queryContent + if ( !m_xDocsMgr.is() ) + { + throw lang::IllegalArgumentException( + "No Document Manager!", + static_cast< cppu::OWeakObject * >( this ), + 1 ); + } + + OUString aDocId = tdoc_ucp::OfficeDocumentsManager::queryDocumentId(xModel); + if ( aDocId.isEmpty() ) + { + throw lang::IllegalArgumentException( + "Unable to obtain document id from model!", + static_cast< cppu::OWeakObject * >( this ), + 1 ); + } + + OUString aBuffer = TDOC_URL_SCHEME ":/" + aDocId; + + uno::Reference< ucb::XContentIdentifier > xId + = new ::ucbhelper::ContentIdentifier( aBuffer ); + return xId; +} + +// XTransientDocumentsDocumentContentFactory methods. + +uno::Reference< ucb::XContent > SAL_CALL +ContentProvider::createDocumentContent( + uno::Reference<frame::XModel> const& xModel) +{ + uno::Reference<ucb::XContentIdentifier> const xId( + createDocumentContentIdentifier(xModel)); + + osl::MutexGuard aGuard( m_aMutex ); + + // Check, if a content with given id already exists... + uno::Reference< ucb::XContent > xContent + = queryExistingContent( xId ); + + if ( !xContent.is() ) + { + // Create a new content. + xContent = Content::create( m_xContext, this, xId ); + } + + if ( xContent.is() ) + return xContent; + + // no content. + throw lang::IllegalArgumentException( + "Illegal Content Identifier!", + static_cast< cppu::OWeakObject * >( this ), + 1 ); +} + + +// interface OfficeDocumentsEventListener + + +// virtual +void ContentProvider::notifyDocumentClosed( std::u16string_view rDocId ) +{ + osl::MutexGuard aGuard( getContentListMutex() ); + + ::ucbhelper::ContentRefList aAllContents; + queryExistingContents( aAllContents ); + + // Notify all content objects related to the closed doc. + + bool bFoundDocumentContent = false; + rtl::Reference< Content > xRoot; + + for ( const auto& rContent : aAllContents ) + { + Uri aUri( rContent->getIdentifier()->getContentIdentifier() ); + OSL_ENSURE( aUri.isValid(), + "ContentProvider::notifyDocumentClosed - Invalid URI!" ); + + if ( !bFoundDocumentContent ) + { + if ( aUri.isRoot() ) + { + xRoot = static_cast< Content * >( rContent.get() ); + } + else if ( aUri.isDocument() ) + { + if ( aUri.getDocumentId() == rDocId ) + { + bFoundDocumentContent = true; + + // document content will notify removal of child itself; + // no need for the root to propagate this. + xRoot.clear(); + } + } + } + + if ( aUri.getDocumentId() == rDocId ) + { + // Inform content. + rtl::Reference< Content > xContent + = static_cast< Content * >( rContent.get() ); + + xContent->notifyDocumentClosed(); + } + } + + if ( xRoot.is() ) + { + // No document content found for rDocId but root content + // instantiated. Root content must announce document removal + // to content event listeners. + xRoot->notifyChildRemoved( rDocId ); + } +} + + +// virtual +void ContentProvider::notifyDocumentOpened( std::u16string_view rDocId ) +{ + osl::MutexGuard aGuard( getContentListMutex() ); + + ::ucbhelper::ContentRefList aAllContents; + queryExistingContents( aAllContents ); + + // Find root content. If instantiated let it propagate document insertion. + + for ( const auto& rContent : aAllContents ) + { + Uri aUri( rContent->getIdentifier()->getContentIdentifier() ); + OSL_ENSURE( aUri.isValid(), + "ContentProvider::notifyDocumentOpened - Invalid URI!" ); + + if ( aUri.isRoot() ) + { + rtl::Reference< Content > xRoot + = static_cast< Content * >( rContent.get() ); + xRoot->notifyChildInserted( rDocId ); + + // Done. + break; + } + } +} + + +// Non-UNO + + +uno::Reference< embed::XStorage > +ContentProvider::queryStorage( const OUString & rUri, + StorageAccessMode eMode ) const +{ + if ( m_xStgElemFac.is() ) + { + try + { + return m_xStgElemFac->createStorage( rUri, eMode ); + } + catch ( embed::InvalidStorageException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + catch ( lang::IllegalArgumentException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + catch ( io::IOException const & ) + { + // Okay to happen, for instance when the storage does not exist. + //OSL_ENSURE( false, "Caught IOException!" ); + } + catch ( embed::StorageWrappedTargetException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + } + return uno::Reference< embed::XStorage >(); +} + + +uno::Reference< embed::XStorage > +ContentProvider::queryStorageClone( const OUString & rUri ) const +{ + if ( m_xStgElemFac.is() ) + { + try + { + Uri aUri( rUri ); + uno::Reference< embed::XStorage > xParentStorage + = m_xStgElemFac->createStorage( aUri.getParentUri(), READ ); + uno::Reference< embed::XStorage > xStorage + = m_xStgElemFac->createTemporaryStorage(); + + xParentStorage->copyStorageElementLastCommitTo( + aUri.getDecodedName(), xStorage ); + return xStorage; + } + catch ( embed::InvalidStorageException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + catch ( lang::IllegalArgumentException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + catch ( io::IOException const & ) + { + // Okay to happen, for instance when the storage does not exist. + //OSL_ENSURE( false, "Caught IOException!" ); + } + catch ( embed::StorageWrappedTargetException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + } + + return uno::Reference< embed::XStorage >(); +} + + +uno::Reference< io::XInputStream > +ContentProvider::queryInputStream( const OUString & rUri, + const OUString & rPassword ) const +{ + if ( m_xStgElemFac.is() ) + { + try + { + return m_xStgElemFac->createInputStream( rUri, rPassword ); + } + catch ( embed::InvalidStorageException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + catch ( lang::IllegalArgumentException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + catch ( io::IOException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + catch ( embed::StorageWrappedTargetException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } +// catch ( packages::WrongPasswordException const & ) +// { +// // the key provided is wrong; rethrow; to be handled by caller. +// throw; +// } + } + return uno::Reference< io::XInputStream >(); +} + + +uno::Reference< io::XOutputStream > +ContentProvider::queryOutputStream( const OUString & rUri, + const OUString & rPassword, + bool bTruncate ) const +{ + if ( m_xStgElemFac.is() ) + { + try + { + return + m_xStgElemFac->createOutputStream( rUri, rPassword, bTruncate ); + } + catch ( embed::InvalidStorageException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + catch ( lang::IllegalArgumentException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + catch ( io::IOException const & ) + { + // Okay to happen, for instance when the storage does not exist. + //OSL_ENSURE( false, "Caught IOException!" ); + } + catch ( embed::StorageWrappedTargetException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } +// catch ( packages::WrongPasswordException const & ) +// { +// // the key provided is wrong; rethrow; to be handled by caller. +// throw; +// } + } + return uno::Reference< io::XOutputStream >(); +} + + +uno::Reference< io::XStream > +ContentProvider::queryStream( const OUString & rUri, + const OUString & rPassword, + bool bTruncate ) const +{ + if ( m_xStgElemFac.is() ) + { + try + { + return m_xStgElemFac->createStream( rUri, rPassword, bTruncate ); + } + catch ( embed::InvalidStorageException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + catch ( lang::IllegalArgumentException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + catch ( io::IOException const & ) + { + // Okay to happen, for instance when the storage does not exist. + //OSL_ENSURE( false, "Caught IOException!" ); + } + catch ( embed::StorageWrappedTargetException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } +// catch ( packages::WrongPasswordException const & ) +// { +// // the key provided is wrong; rethrow; to be handled by caller. +// throw; +// } + } + return uno::Reference< io::XStream >(); +} + + +bool ContentProvider::queryNamesOfChildren( + const OUString & rUri, uno::Sequence< OUString > & rNames ) const +{ + Uri aUri( rUri ); + if ( aUri.isRoot() ) + { + // special handling for root, which has no storage, but children. + if ( m_xDocsMgr.is() ) + { + rNames = m_xDocsMgr->queryDocuments(); + return true; + } + } + else + { + if ( m_xStgElemFac.is() ) + { + try + { + uno::Reference< embed::XStorage > xStorage + = m_xStgElemFac->createStorage( rUri, READ ); + + OSL_ENSURE( xStorage.is(), "Got no Storage!" ); + + if ( xStorage.is() ) + { + rNames = xStorage->getElementNames(); + return true; + } + } + catch ( embed::InvalidStorageException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + catch ( lang::IllegalArgumentException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + catch ( io::IOException const & ) + { + // Okay to happen, for instance if the storage does not exist. + //OSL_ENSURE( false, "Caught IOException!" ); + } + catch ( embed::StorageWrappedTargetException const & ) + { + TOOLS_WARN_EXCEPTION("ucb.ucp", ""); + } + } + } + return false; +} + + +OUString +ContentProvider::queryStorageTitle( const OUString & rUri ) const +{ + OUString aTitle; + + Uri aUri( rUri ); + if ( aUri.isRoot() ) + { + // always empty. + aTitle.clear(); + } + else if ( aUri.isDocument() ) + { + // for documents, title shall not be derived from URL. It shall + // be something more 'speaking' than just the document UID. + if ( m_xDocsMgr.is() ) + aTitle = m_xDocsMgr->queryStorageTitle( aUri.getDocumentId() ); + } + else + { + // derive title from URL + aTitle = aUri.getDecodedName(); + } + + OSL_ENSURE( !aTitle.isEmpty() || aUri.isRoot(), + "ContentProvider::queryStorageTitle - empty title!" ); + return aTitle; +} + + +uno::Reference< frame::XModel > +ContentProvider::queryDocumentModel( const OUString & rUri ) const +{ + uno::Reference< frame::XModel > xModel; + + if ( m_xDocsMgr.is() ) + { + Uri aUri( rUri ); + xModel = m_xDocsMgr->queryDocumentModel( aUri.getDocumentId() ); + } + + OSL_ENSURE( xModel.is(), + "ContentProvider::queryDocumentModel - no model!" ); + return xModel; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |