connectivity/source/commontools/ConnectionWrapper.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <connectivity/ConnectionWrapper.hxx>
  21 #include <com/sun/star/beans/PropertyValue.hpp>
  22 #include <com/sun/star/sdbc/XConnection.hpp>
  23 #include <comphelper/uno3.hxx>
  24 #include <comphelper/sequence.hxx>
  25 #include <comphelper/servicehelper.hxx>
  26 #include <comphelper/hash.hxx>
  27 #include <cppuhelper/supportsservice.hxx>
  28 #include <com/sun/star/reflection/ProxyFactory.hpp>
  29 #include <algorithm>
  30
  31 using namespace connectivity;
  32
  33 using namespace com::sun::star::uno;
  34 using namespace com::sun::star::lang;
  35 using namespace com::sun::star::beans;
  36 using namespace com::sun::star::sdbc;
  37 using namespace ::com::sun::star::reflection;
  38
  39 OConnectionWrapper::OConnectionWrapper()
  40     : OConnection_BASE(m_aMutex)
  41 {
  42
  43 }
  44
  45 void OConnectionWrapper::setDelegation(Reference< XAggregation >& _rxProxyConnection)
  46 {
  47     // So far only called from constructors
  48     OSL_ENSURE(_rxProxyConnection.is(),"OConnectionWrapper: Connection must be valid!");
  49     osl_atomic_increment(&m_refCount);
  50     if (_rxProxyConnection.is())
  51     {
  52         // transfer the (one and only) real ref to the aggregate to our member
  53         m_xProxyConnection = _rxProxyConnection;
  54         _rxProxyConnection = nullptr;
  55         ::comphelper::query_aggregation(m_xProxyConnection,m_xConnection);
  56         m_xTypeProvider.set(m_xConnection,UNO_QUERY);
  57         m_xUnoTunnel.set(m_xConnection,UNO_QUERY);
  58         m_xServiceInfo.set(m_xConnection,UNO_QUERY);
  59
  60         // set ourself as delegator
  61         Reference<XInterface> xIf = static_cast< XUnoTunnel* >( this );
  62         m_xProxyConnection->setDelegator( xIf );
  63
  64     }
  65     osl_atomic_decrement(&m_refCount);
  66 }
  67
  68 void OConnectionWrapper::setDelegation(const Reference< XConnection >& _xConnection
  69                                        ,const Reference< XComponentContext>& _rxContext)
  70 {
  71     // So far only called from constructors
  72     OSL_ENSURE(_xConnection.is(),"OConnectionWrapper: Connection must be valid!");
  73     osl_atomic_increment(&m_refCount);
  74
  75     m_xConnection = _xConnection;
  76     m_xTypeProvider.set(m_xConnection,UNO_QUERY);
  77     m_xUnoTunnel.set(m_xConnection,UNO_QUERY);
  78     m_xServiceInfo.set(m_xConnection,UNO_QUERY);
  79
  80     Reference< XProxyFactory >  xProxyFactory = ProxyFactory::create( _rxContext );
  81     Reference< XAggregation > xConProxy = xProxyFactory->createProxy(_xConnection);
  82     if (xConProxy.is())
  83     {
  84         // transfer the (one and only) real ref to the aggregate to our member
  85         m_xProxyConnection = std::move(xConProxy);
  86
  87         // set ourself as delegator
  88         Reference<XInterface> xIf = static_cast< XUnoTunnel* >( this );
  89         m_xProxyConnection->setDelegator( xIf );
  90
  91     }
  92     osl_atomic_decrement(&m_refCount);
  93 }
  94
  95 void OConnectionWrapper::disposing()
  96 {
  97     osl::MutexGuard aGuard(m_aMutex);
  98     OConnection_BASE::disposing();
  99     m_xConnection.clear();
 100 }
 101
 102 OConnectionWrapper::~OConnectionWrapper()
 103 {
 104     if (m_xProxyConnection.is())
 105         m_xProxyConnection->setDelegator(nullptr);
 106 }
 107
 108 // XServiceInfo
 109
 110 OUString SAL_CALL OConnectionWrapper::getImplementationName(  )
 111 {
 112     return u"com.sun.star.sdbc.drivers.OConnectionWrapper"_ustr;
 113 }
 114
 115
 116 css::uno::Sequence< OUString > SAL_CALL OConnectionWrapper::getSupportedServiceNames(  )
 117 {
 118     osl::MutexGuard aGuard(m_aMutex);
 119     // first collect the services which are supported by our aggregate
 120     Sequence< OUString > aSupported;
 121     if ( m_xServiceInfo.is() )
 122         aSupported = m_xServiceInfo->getSupportedServiceNames();
 123
 124     // append our own service, if necessary
 125     OUString sConnectionService( u"com.sun.star.sdbc.Connection"_ustr );
 126     if ( ::comphelper::findValue( aSupported, sConnectionService ) == -1 )
 127     {
 128         sal_Int32 nLen = aSupported.getLength();
 129         aSupported.realloc( nLen + 1 );
 130         aSupported.getArray()[ nLen ] = sConnectionService;
 131     }
 132
 133     // outta here
 134     return aSupported;
 135 }
 136
 137
 138 sal_Bool SAL_CALL OConnectionWrapper::supportsService( const OUString& _rServiceName )
 139 {
 140     return cppu::supportsService(this, _rServiceName);
 141 }
 142
 143
 144 Any SAL_CALL OConnectionWrapper::queryInterface( const Type& _rType )
 145 {
 146     osl::MutexGuard aGuard(m_aMutex);
 147     Any aReturn = OConnection_BASE::queryInterface(_rType);
 148     return aReturn.hasValue() ? aReturn : (m_xProxyConnection.is() ? m_xProxyConnection->queryAggregation(_rType) : aReturn);
 149 }
 150
 151 Sequence< Type > SAL_CALL OConnectionWrapper::getTypes(  )
 152 {
 153     osl::MutexGuard aGuard(m_aMutex);
 154     return ::comphelper::concatSequences(
 155         OConnection_BASE::getTypes(),
 156         m_xTypeProvider->getTypes()
 157     );
 158 }
 159
 160 // css::lang::XUnoTunnel
 161 sal_Int64 SAL_CALL OConnectionWrapper::getSomething( const Sequence< sal_Int8 >& rId )
 162 {
 163     if (comphelper::isUnoTunnelId<OConnectionWrapper>(rId))
 164         return comphelper::getSomething_cast(this);
 165
 166     osl::MutexGuard aGuard(m_aMutex);
 167     if(m_xUnoTunnel.is())
 168         return m_xUnoTunnel->getSomething(rId);
 169     return 0;
 170 }
 171
 172
 173 const Sequence< sal_Int8 > & OConnectionWrapper::getUnoTunnelId()
 174 {
 175     static const comphelper::UnoIdInit implId;
 176     return implId.getSeq();
 177 }
 178
 179 namespace
 180 {
 181     class TPropertyValueLessFunctor
 182     {
 183     public:
 184         TPropertyValueLessFunctor()
 185         {}
 186         bool operator() (const css::beans::PropertyValue& lhs, const css::beans::PropertyValue& rhs) const
 187         {
 188             return lhs.Name.compareToIgnoreAsciiCase(rhs.Name) < 0;
 189         }
 190     };
 191
 192 }
 193
 194
 195 // creates a unique id out of the url and sequence of properties
 196 void OConnectionWrapper::createUniqueId( const OUString& _rURL
 197                     ,Sequence< PropertyValue >& _rInfo
 198                     ,sal_uInt8* _pBuffer
 199                     ,const OUString& _rUserName
 200                     ,const OUString& _rPassword)
 201 {
 202     // first we create the digest we want to have
 203     ::comphelper::Hash sha1(::comphelper::HashType::SHA1);
 204     sha1.update(reinterpret_cast<unsigned char const*>(_rURL.getStr()), _rURL.getLength() * sizeof(sal_Unicode));
 205     if ( !_rUserName.isEmpty() )
 206         sha1.update(reinterpret_cast<unsigned char const*>(_rUserName.getStr()), _rUserName.getLength() * sizeof(sal_Unicode));
 207     if ( !_rPassword.isEmpty() )
 208         sha1.update(reinterpret_cast<unsigned char const*>(_rPassword.getStr()), _rPassword.getLength() * sizeof(sal_Unicode));
 209     // now we need to sort the properties
 210     auto [begin, end] = asNonConstRange(_rInfo);
 211     std::sort(begin,end,TPropertyValueLessFunctor());
 212
 213     for (PropertyValue const& prop : _rInfo)
 214     {
 215         // we only include strings an integer values
 216         OUString sValue;
 217         if ( prop.Value >>= sValue )
 218             ;
 219         else
 220         {
 221             sal_Int32 nValue = 0;
 222             if ( prop.Value >>= nValue )
 223                 sValue = OUString::number(nValue);
 224             else
 225             {
 226                 Sequence< OUString> aSeq;
 227                 if ( prop.Value >>= aSeq )
 228                 {
 229                     for (OUString const& s : aSeq)
 230                         sha1.update(reinterpret_cast<unsigned char const*>(s.getStr()), s.getLength() * sizeof(sal_Unicode));
 231                 }
 232             }
 233         }
 234         if ( !sValue.isEmpty() )
 235         {
 236             // we don't have to convert this into UTF8 because we don't store on a file system
 237             sha1.update(reinterpret_cast<unsigned char const*>(sValue.getStr()), sValue.getLength() * sizeof(sal_Unicode));
 238         }
 239     }
 240
 241     std::vector<unsigned char> result(sha1.finalize());
 242     std::copy(result.begin(), result.end(), _pBuffer);
 243 }
 244
 245
 246 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */