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 <cppuhelper/typeprovider.hxx>
  29 #include <com/sun/star/reflection/ProxyFactory.hpp>
  30 #include <algorithm>
  31
  32 using namespace connectivity;
  33
  34 using namespace com::sun::star::uno;
  35 using namespace com::sun::star::lang;
  36 using namespace com::sun::star::beans;
  37 using namespace com::sun::star::sdbc;
  38 using namespace ::com::sun::star::reflection;
  39
  40 OConnectionWrapper::OConnectionWrapper()
  41 {
  42
  43 }
  44
  45 void OConnectionWrapper::setDelegation(Reference< XAggregation >& _rxProxyConnection,oslInterlockedCount& _rRefCount)
  46 {
  47     OSL_ENSURE(_rxProxyConnection.is(),"OConnectionWrapper: Connection must be valid!");
  48     osl_atomic_increment( &_rRefCount );
  49     if (_rxProxyConnection.is())
  50     {
  51         // transfer the (one and only) real ref to the aggregate to our member
  52         m_xProxyConnection = _rxProxyConnection;
  53         _rxProxyConnection = nullptr;
  54         ::comphelper::query_aggregation(m_xProxyConnection,m_xConnection);
  55         m_xTypeProvider.set(m_xConnection,UNO_QUERY);
  56         m_xUnoTunnel.set(m_xConnection,UNO_QUERY);
  57         m_xServiceInfo.set(m_xConnection,UNO_QUERY);
  58
  59         // set ourself as delegator
  60         Reference<XInterface> xIf = static_cast< XUnoTunnel* >( this );
  61         m_xProxyConnection->setDelegator( xIf );
  62
  63     }
  64     osl_atomic_decrement( &_rRefCount );
  65 }
  66
  67 void OConnectionWrapper::setDelegation(const Reference< XConnection >& _xConnection
  68                                        ,const Reference< XComponentContext>& _rxContext
  69                                        ,oslInterlockedCount& _rRefCount)
  70 {
  71     OSL_ENSURE(_xConnection.is(),"OConnectionWrapper: Connection must be valid!");
  72     osl_atomic_increment( &_rRefCount );
  73
  74     m_xConnection = _xConnection;
  75     m_xTypeProvider.set(m_xConnection,UNO_QUERY);
  76     m_xUnoTunnel.set(m_xConnection,UNO_QUERY);
  77     m_xServiceInfo.set(m_xConnection,UNO_QUERY);
  78
  79     Reference< XProxyFactory >  xProxyFactory = ProxyFactory::create( _rxContext );
  80     Reference< XAggregation > xConProxy = xProxyFactory->createProxy(_xConnection);
  81     if (xConProxy.is())
  82     {
  83         // transfer the (one and only) real ref to the aggregate to our member
  84         m_xProxyConnection = xConProxy;
  85
  86         // set ourself as delegator
  87         Reference<XInterface> xIf = static_cast< XUnoTunnel* >( this );
  88         m_xProxyConnection->setDelegator( xIf );
  89
  90     }
  91     osl_atomic_decrement( &_rRefCount );
  92 }
  93
  94 void OConnectionWrapper::disposing()
  95 {
  96 m_xConnection.clear();
  97 }
  98
  99 OConnectionWrapper::~OConnectionWrapper()
 100 {
 101     if (m_xProxyConnection.is())
 102         m_xProxyConnection->setDelegator(nullptr);
 103 }
 104
 105 // XServiceInfo
 106
 107 OUString SAL_CALL OConnectionWrapper::getImplementationName(  )
 108 {
 109     return "com.sun.star.sdbc.drivers.OConnectionWrapper";
 110 }
 111
 112
 113 css::uno::Sequence< OUString > SAL_CALL OConnectionWrapper::getSupportedServiceNames(  )
 114 {
 115     // first collect the services which are supported by our aggregate
 116     Sequence< OUString > aSupported;
 117     if ( m_xServiceInfo.is() )
 118         aSupported = m_xServiceInfo->getSupportedServiceNames();
 119
 120     // append our own service, if necessary
 121     OUString sConnectionService( "com.sun.star.sdbc.Connection" );
 122     if ( ::comphelper::findValue( aSupported, sConnectionService ) == -1 )
 123     {
 124         sal_Int32 nLen = aSupported.getLength();
 125         aSupported.realloc( nLen + 1 );
 126         aSupported[ nLen ] = sConnectionService;
 127     }
 128
 129     // outta here
 130     return aSupported;
 131 }
 132
 133
 134 sal_Bool SAL_CALL OConnectionWrapper::supportsService( const OUString& _rServiceName )
 135 {
 136     return cppu::supportsService(this, _rServiceName);
 137 }
 138
 139
 140 Any SAL_CALL OConnectionWrapper::queryInterface( const Type& _rType )
 141 {
 142     Any aReturn = OConnection_BASE::queryInterface(_rType);
 143     return aReturn.hasValue() ? aReturn : (m_xProxyConnection.is() ? m_xProxyConnection->queryAggregation(_rType) : aReturn);
 144 }
 145
 146 Sequence< Type > SAL_CALL OConnectionWrapper::getTypes(  )
 147 {
 148     return ::comphelper::concatSequences(
 149         OConnection_BASE::getTypes(),
 150         m_xTypeProvider->getTypes()
 151     );
 152 }
 153
 154 // css::lang::XUnoTunnel
 155 sal_Int64 SAL_CALL OConnectionWrapper::getSomething( const Sequence< sal_Int8 >& rId )
 156 {
 157     if (isUnoTunnelId<OConnectionWrapper>(rId))
 158         return reinterpret_cast< sal_Int64 >( this );
 159
 160     if(m_xUnoTunnel.is())
 161         return m_xUnoTunnel->getSomething(rId);
 162     return 0;
 163 }
 164
 165
 166 Sequence< sal_Int8 > OConnectionWrapper::getUnoTunnelId()
 167 {
 168     static ::cppu::OImplementationId implId;
 169
 170     return implId.getImplementationId();
 171 }
 172
 173 namespace
 174 {
 175     class TPropertyValueLessFunctor
 176     {
 177     public:
 178         TPropertyValueLessFunctor()
 179         {}
 180         bool operator() (const css::beans::PropertyValue& lhs, const css::beans::PropertyValue& rhs) const
 181         {
 182             return lhs.Name.compareToIgnoreAsciiCase(rhs.Name) < 0;
 183         }
 184     };
 185
 186 }
 187
 188
 189 // creates a unique id out of the url and sequence of properties
 190 void OConnectionWrapper::createUniqueId( const OUString& _rURL
 191                     ,Sequence< PropertyValue >& _rInfo
 192                     ,sal_uInt8* _pBuffer
 193                     ,const OUString& _rUserName
 194                     ,const OUString& _rPassword)
 195 {
 196     // first we create the digest we want to have
 197     ::comphelper::Hash sha1(::comphelper::HashType::SHA1);
 198     sha1.update(reinterpret_cast<unsigned char const*>(_rURL.getStr()), _rURL.getLength() * sizeof(sal_Unicode));
 199     if ( !_rUserName.isEmpty() )
 200         sha1.update(reinterpret_cast<unsigned char const*>(_rUserName.getStr()), _rUserName.getLength() * sizeof(sal_Unicode));
 201     if ( !_rPassword.isEmpty() )
 202         sha1.update(reinterpret_cast<unsigned char const*>(_rPassword.getStr()), _rPassword.getLength() * sizeof(sal_Unicode));
 203     // now we need to sort the properties
 204     std::sort(_rInfo.begin(),_rInfo.end(),TPropertyValueLessFunctor());
 205
 206     for (PropertyValue const & prop : std::as_const(_rInfo))
 207     {
 208         // we only include strings an integer values
 209         OUString sValue;
 210         if ( prop.Value >>= sValue )
 211             ;
 212         else
 213         {
 214             sal_Int32 nValue = 0;
 215             if ( prop.Value >>= nValue )
 216                 sValue = OUString::number(nValue);
 217             else
 218             {
 219                 Sequence< OUString> aSeq;
 220                 if ( prop.Value >>= aSeq )
 221                 {
 222                     for(OUString const & s : std::as_const(aSeq))
 223                         sha1.update(reinterpret_cast<unsigned char const*>(s.getStr()), s.getLength() * sizeof(sal_Unicode));
 224                 }
 225             }
 226         }
 227         if ( !sValue.isEmpty() )
 228         {
 229             // we don't have to convert this into UTF8 because we don't store on a file system
 230             sha1.update(reinterpret_cast<unsigned char const*>(sValue.getStr()), sValue.getLength() * sizeof(sal_Unicode));
 231         }
 232     }
 233
 234     std::vector<unsigned char> result(sha1.finalize());
 235     std::copy(result.begin(), result.end(), _pBuffer);
 236 }
 237
 238
 239 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */