/* -*- 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 <osl/security.hxx>

#include <sal/log.hxx>

#include <cppuhelper/implbase.hxx>

#include <cppuhelper/supportsservice.hxx>

#include <cppuhelper/unourl.hxx>

#include <rtl/malformeduriexception.hxx>

#include <rtl/ref.hxx>

#include <o3tl/string_view.hxx>

#include <com/sun/star/lang/XServiceInfo.hpp>

#include <com/sun/star/connection/ConnectionSetupException.hpp>

#include <com/sun/star/connection/NoConnectException.hpp>

#include <com/sun/star/connection/XConnector.hpp>

#include <com/sun/star/uno/XComponentContext.hpp>

#include "connector.hxx"

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 OConnector : public WeakImplHelper< XConnector, XServiceInfo >

    {

        Reference< XMultiComponentFactory > _xSMgr;

        Reference< XComponentContext > _xCtx;

    public:

        explicit OConnector(const Reference< XComponentContext > &xCtx);

        // Methods

        virtual Reference< XConnection > SAL_CALL connect(

            const OUString& sConnectionDescription ) 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;

    };

}

OConnector::OConnector(const Reference< XComponentContext > &xCtx)

    : _xSMgr( xCtx->getServiceManager() )

    , _xCtx( xCtx )

{}

Reference< XConnection > SAL_CALL OConnector::connect( const OUString& sConnectionDescription )

{

    // split string into tokens

    try

    {

        cppu::UnoUrlDescriptor aDesc(sConnectionDescription);

        Reference< XConnection > r;

        if ( aDesc.getName() == "pipe" )

        {

            OUString aName(aDesc.getParameter(u"name"_ustr));

            rtl::Reference<stoc_connector::PipeConnection> pConn(new stoc_connector::PipeConnection( sConnectionDescription ));

            if( pConn->m_pipe.create( aName.pData, osl_Pipe_OPEN, osl::Security() ) )

            {

                r = pConn;

            }

            else

            {

                OUString const sMessage(

                    "Connector : couldn't connect to pipe \"" + aName + "\": "

                    + OUString::number(pConn->m_pipe.getError()));

                SAL_WARN("io.connector", sMessage);

                throw NoConnectException( sMessage );

            }

        }

        else if ( aDesc.getName() == "socket" )

        {

            OUString aHost;

            if (aDesc.hasParameter(u"host"_ustr))

                aHost = aDesc.getParameter(u"host"_ustr);

            else

                aHost = "localhost";

            sal_uInt16 nPort = static_cast< sal_uInt16 >(

                aDesc.getParameter(u"port"_ustr).

                toInt32());

            bool bTcpNoDelay

                = aDesc.getParameter(u"tcpnodelay"_ustr).toInt32() != 0;

            rtl::Reference<stoc_connector::SocketConnection> pConn(new stoc_connector::SocketConnection( sConnectionDescription));

            SocketAddr AddrTarget( aHost.pData, nPort );

            if(pConn->m_socket.connect(AddrTarget) != osl_Socket_Ok)

            {

                OUString sMessage(u"Connector : couldn't connect to socket ("_ustr);

                OUString sError = pConn->m_socket.getErrorAsString();

                sMessage += sError + ")";

                throw NoConnectException( sMessage );

            }

            // we enable tcpNoDelay for loopback connections because

            // it can make a significant speed difference on linux boxes.

            if( bTcpNoDelay || aHost == "localhost" || aHost.startsWith("127.0.0.") )

            {

                sal_Int32 nTcpNoDelay = sal_Int32(true);

                pConn->m_socket.setOption( osl_Socket_OptionTcpNoDelay , &nTcpNoDelay,

                                           sizeof( nTcpNoDelay ) , osl_Socket_LevelTcp );

            }

            pConn->completeConnectionString();

            r = pConn;

        }

        else

        {

            OUString delegatee= "com.sun.star.connection.Connector." + aDesc.getName();

            Reference<XConnector> xConnector(

                _xSMgr->createInstanceWithContext(delegatee, _xCtx), UNO_QUERY );

            if(!xConnector.is())

                throw ConnectionSetupException("Connector: unknown delegatee " + delegatee);

            sal_Int32 index = sConnectionDescription.indexOf(',');

            r = xConnector->connect(OUString(o3tl::trim(sConnectionDescription.subView(index + 1))));

        }

        return r;

    }

    catch (const rtl::MalformedUriException & rEx)

    {

        throw ConnectionSetupException(rEx.getMessage());

    }

}

OUString OConnector::getImplementationName()

{

    return u"com.sun.star.comp.io.Connector"_ustr;

}

sal_Bool OConnector::supportsService(const OUString& ServiceName)

{

    return cppu::supportsService(this, ServiceName);

}

Sequence< OUString > OConnector::getSupportedServiceNames()

{

    return { u"com.sun.star.connection.Connector"_ustr };

}

extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*

io_OConnector_get_implementation(

    css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&)

{

    return cppu::acquire(new OConnector(context));

}

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