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Diffstat (limited to 'io/source/acceptor/acceptor.cxx')
| -rw-r--r-- | io/source/acceptor/acceptor.cxx | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/io/source/acceptor/acceptor.cxx b/io/source/acceptor/acceptor.cxx new file mode 100644 index 000000000..af0883be9 --- /dev/null +++ b/io/source/acceptor/acceptor.cxx @@ -0,0 +1,253 @@ +/* -*- 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 <cppuhelper/implbase.hxx> +#include <cppuhelper/supportsservice.hxx> +#include <cppuhelper/unourl.hxx> +#include <rtl/malformeduriexception.hxx> + +#include <com/sun/star/connection/AlreadyAcceptingException.hpp> +#include <com/sun/star/connection/ConnectionSetupException.hpp> +#include <com/sun/star/connection/XAcceptor.hpp> +#include <com/sun/star/lang/IllegalArgumentException.hpp> +#include <com/sun/star/lang/XServiceInfo.hpp> +#include <com/sun/star/uno/XComponentContext.hpp> + +#include "acceptor.hxx" +#include <memory> +#include <mutex> +#include <string_view> + +using namespace ::osl; +using namespace ::cppu; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::lang; +using namespace ::com::sun::star::connection; + +namespace { + + class OAcceptor : public WeakImplHelper< XAcceptor, XServiceInfo > + { + public: + explicit OAcceptor(const Reference< XComponentContext > & xCtx); + virtual ~OAcceptor() override; + public: + // Methods + virtual Reference< XConnection > SAL_CALL accept( const OUString& sConnectionDescription ) override; + virtual void SAL_CALL stopAccepting( ) override; + + public: // XServiceInfo + virtual OUString SAL_CALL getImplementationName() override; + virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override; + virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override; + + private: + std::unique_ptr<io_acceptor::PipeAcceptor> m_pPipe; + std::unique_ptr<io_acceptor::SocketAcceptor> m_pSocket; + std::mutex m_mutex; + OUString m_sLastDescription; + bool m_bInAccept; + + Reference< XMultiComponentFactory > _xSMgr; + Reference< XComponentContext > _xCtx; + Reference<XAcceptor> _xAcceptor; + }; + +} + +OAcceptor::OAcceptor( const Reference< XComponentContext > & xCtx ) + : m_bInAccept( false ) + , _xSMgr( xCtx->getServiceManager() ) + , _xCtx( xCtx ) +{} + +OAcceptor::~OAcceptor() +{ + m_pPipe.reset(); +} + +namespace { +struct BeingInAccept +{ + /// @throws AlreadyAcceptingException + BeingInAccept( bool *pFlag,std::u16string_view sConnectionDescription ) + : m_pFlag( pFlag ) + { + if( *m_pFlag ) + throw AlreadyAcceptingException( OUString::Concat("AlreadyAcceptingException :") + sConnectionDescription ); + *m_pFlag = true; + } + ~BeingInAccept() + { + *m_pFlag = false; + } + bool *m_pFlag; +}; +} + +Reference< XConnection > OAcceptor::accept( const OUString &sConnectionDescription ) +{ + // if there is a thread already accepting in this object, throw an exception. + struct BeingInAccept guard( &m_bInAccept, sConnectionDescription ); + + Reference< XConnection > r; + if( !m_sLastDescription.isEmpty() && + m_sLastDescription != sConnectionDescription ) + { + // instantiate another acceptor for different ports + throw ConnectionSetupException( "acceptor::accept called multiple times with different connection strings\n" ); + } + + if( m_sLastDescription.isEmpty() ) + { + // setup the acceptor + try + { + cppu::UnoUrlDescriptor aDesc(sConnectionDescription); + if ( aDesc.getName() == "pipe" ) + { + OUString aName( + aDesc.getParameter( + "name")); + + m_pPipe.reset(new io_acceptor::PipeAcceptor(aName, sConnectionDescription)); + + try + { + m_pPipe->init(); + } + catch( ... ) + { + { + std::unique_lock g( m_mutex ); + m_pPipe.reset(); + } + throw; + } + } + else if ( aDesc.getName() == "socket" ) + { + OUString aHost; + if (aDesc.hasParameter( + "host")) + aHost = aDesc.getParameter( + "host"); + else + aHost = "localhost"; + sal_uInt16 nPort = static_cast< sal_uInt16 >( + aDesc.getParameter( + "port"). + toInt32()); + bool bTcpNoDelay + = aDesc.getParameter( + "tcpnodelay").toInt32() != 0; + + m_pSocket.reset(new io_acceptor::SocketAcceptor( + aHost, nPort, bTcpNoDelay, sConnectionDescription)); + + try + { + m_pSocket->init(); + } + catch( ... ) + { + { + std::unique_lock g( m_mutex ); + m_pSocket.reset(); + } + throw; + } + } + else + { + OUString delegatee = "com.sun.star.connection.Acceptor." + aDesc.getName(); + _xAcceptor.set(_xSMgr->createInstanceWithContext(delegatee, _xCtx), UNO_QUERY); + + if(!_xAcceptor.is()) + throw ConnectionSetupException("Acceptor: unknown delegatee " + delegatee); + } + } + catch (const rtl::MalformedUriException & rEx) + { + throw IllegalArgumentException( + rEx.getMessage(), + Reference< XInterface > (), + 0 ); + } + m_sLastDescription = sConnectionDescription; + } + + if( m_pPipe ) + { + r = m_pPipe->accept(); + } + else if( m_pSocket ) + { + r = m_pSocket->accept(); + } + else + { + r = _xAcceptor->accept(sConnectionDescription); + } + + return r; +} + +void SAL_CALL OAcceptor::stopAccepting( ) +{ + std::unique_lock guard( m_mutex ); + + if( m_pPipe ) + { + m_pPipe->stopAccepting(); + } + else if ( m_pSocket ) + { + m_pSocket->stopAccepting(); + } + else if( _xAcceptor.is() ) + { + _xAcceptor->stopAccepting(); + } + +} + +OUString OAcceptor::getImplementationName() +{ + return "com.sun.star.comp.io.Acceptor"; +} + +sal_Bool OAcceptor::supportsService(const OUString& ServiceName) +{ + return cppu::supportsService(this, ServiceName); +} + +Sequence< OUString > OAcceptor::getSupportedServiceNames() +{ + return { "com.sun.star.connection.Acceptor" }; +} + +extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface* +io_OAcceptor_get_implementation( + css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&) +{ + return cppu::acquire(new OAcceptor(context)); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |