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/ColumnValue.hpp>
  23 #include <com/sun/star/sdbc/XRow.hpp>
  24 #include <com/sun/star/sdbc/XConnection.hpp>
  25 #include <com/sun/star/lang/DisposedException.hpp>
  26 #include <comphelper/uno3.hxx>
  27 #include <comphelper/sequence.hxx>
  28 #include <comphelper/hash.hxx>
  29 #include <cppuhelper/supportsservice.hxx>
  30 #include <cppuhelper/typeprovider.hxx>
  31 #include <com/sun/star/reflection/ProxyFactory.hpp>
  32 #include <algorithm>
  33 #include <string.h>
  34
  35 using namespace connectivity;
  36
  37 using namespace com::sun::star::uno;
  38 using namespace com::sun::star::lang;
  39 using namespace com::sun::star::beans;
  40 using namespace com::sun::star::sdbc;
  41 using namespace ::com::sun::star::reflection;
  42
  43 OConnectionWrapper::OConnectionWrapper()
  44 {
  45
  46 }
  47
  48 void OConnectionWrapper::setDelegation(Reference< XAggregation >& _rxProxyConnection,oslInterlockedCount& _rRefCount)
  49 {
  50     OSL_ENSURE(_rxProxyConnection.is(),"OConnectionWrapper: Connection must be valid!");
  51     osl_atomic_increment( &_rRefCount );
  52     if (_rxProxyConnection.is())
  53     {
  54         // transfer the (one and only) real ref to the aggregate to our member
  55         m_xProxyConnection = _rxProxyConnection;
  56         _rxProxyConnection = nullptr;
  57         ::comphelper::query_aggregation(m_xProxyConnection,m_xConnection);
  58         m_xTypeProvider.set(m_xConnection,UNO_QUERY);
  59         m_xUnoTunnel.set(m_xConnection,UNO_QUERY);
  60         m_xServiceInfo.set(m_xConnection,UNO_QUERY);
  61
  62         // set ourself as delegator
  63         Reference<XInterface> xIf = static_cast< XUnoTunnel* >( this );
  64         m_xProxyConnection->setDelegator( xIf );
  65
  66     }
  67     osl_atomic_decrement( &_rRefCount );
  68 }
  69
  70 void OConnectionWrapper::setDelegation(const Reference< XConnection >& _xConnection
  71                                        ,const Reference< XComponentContext>& _rxContext
  72                                        ,oslInterlockedCount& _rRefCount)
  73 {
  74     OSL_ENSURE(_xConnection.is(),"OConnectionWrapper: Connection must be valid!");
  75     osl_atomic_increment( &_rRefCount );
  76
  77     m_xConnection = _xConnection;
  78     m_xTypeProvider.set(m_xConnection,UNO_QUERY);
  79     m_xUnoTunnel.set(m_xConnection,UNO_QUERY);
  80     m_xServiceInfo.set(m_xConnection,UNO_QUERY);
  81
  82     Reference< XProxyFactory >  xProxyFactory = ProxyFactory::create( _rxContext );
  83     Reference< XAggregation > xConProxy = xProxyFactory->createProxy(_xConnection);
  84     if (xConProxy.is())
  85     {
  86         // transfer the (one and only) real ref to the aggregate to our member
  87         m_xProxyConnection = xConProxy;
  88
  89         // set ourself as delegator
  90         Reference<XInterface> xIf = static_cast< XUnoTunnel* >( this );
  91         m_xProxyConnection->setDelegator( xIf );
  92
  93     }
  94     osl_atomic_decrement( &_rRefCount );
  95 }
  96
  97 void OConnectionWrapper::disposing()
  98 {
  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 OUString( "com.sun.star.sdbc.drivers.OConnectionWrapper" );
 113 }
 114
 115
 116 css::uno::Sequence< OUString > SAL_CALL OConnectionWrapper::getSupportedServiceNames(  )
 117 {
 118     // first collect the services which are supported by our aggregate
 119     Sequence< OUString > aSupported;
 120     if ( m_xServiceInfo.is() )
 121         aSupported = m_xServiceInfo->getSupportedServiceNames();
 122
 123     // append our own service, if necessary
 124     OUString sConnectionService( "com.sun.star.sdbc.Connection" );
 125     if ( ::comphelper::findValue( aSupported, sConnectionService ) == -1 )
 126     {
 127         sal_Int32 nLen = aSupported.getLength();
 128         aSupported.realloc( nLen + 1 );
 129         aSupported[ nLen ] = sConnectionService;
 130     }
 131
 132     // outta here
 133     return aSupported;
 134 }
 135
 136
 137 sal_Bool SAL_CALL OConnectionWrapper::supportsService( const OUString& _rServiceName )
 138 {
 139     return cppu::supportsService(this, _rServiceName);
 140 }
 141
 142
 143 Any SAL_CALL OConnectionWrapper::queryInterface( const Type& _rType )
 144 {
 145     Any aReturn = OConnection_BASE::queryInterface(_rType);
 146     return aReturn.hasValue() ? aReturn : (m_xProxyConnection.is() ? m_xProxyConnection->queryAggregation(_rType) : aReturn);
 147 }
 148
 149 Sequence< Type > SAL_CALL OConnectionWrapper::getTypes(  )
 150 {
 151     return ::comphelper::concatSequences(
 152         OConnection_BASE::getTypes(),
 153         m_xTypeProvider->getTypes()
 154     );
 155 }
 156
 157 // css::lang::XUnoTunnel
 158 sal_Int64 SAL_CALL OConnectionWrapper::getSomething( const Sequence< sal_Int8 >& rId )
 159 {
 160     if (rId.getLength() == 16 && 0 == memcmp(getUnoTunnelImplementationId().getConstArray(),  rId.getConstArray(), 16 ) )
 161         return reinterpret_cast< sal_Int64 >( this );
 162
 163     if(m_xUnoTunnel.is())
 164         return m_xUnoTunnel->getSomething(rId);
 165     return 0;
 166 }
 167
 168
 169 Sequence< sal_Int8 > OConnectionWrapper::getUnoTunnelImplementationId()
 170 {
 171     static ::cppu::OImplementationId implId;
 172
 173     return implId.getImplementationId();
 174 }
 175
 176 namespace
 177 {
 178     class TPropertyValueLessFunctor
 179     {
 180     public:
 181         TPropertyValueLessFunctor()
 182         {}
 183         bool operator() (const css::beans::PropertyValue& lhs, const css::beans::PropertyValue& rhs) const
 184         {
 185             return lhs.Name.compareToIgnoreAsciiCase(rhs.Name) < 0;
 186         }
 187     };
 188
 189 }
 190
 191
 192 // creates a unique id out of the url and sequence of properties
 193 void OConnectionWrapper::createUniqueId( const OUString& _rURL
 194                     ,Sequence< PropertyValue >& _rInfo
 195                     ,sal_uInt8* _pBuffer
 196                     ,const OUString& _rUserName
 197                     ,const OUString& _rPassword)
 198 {
 199     // first we create the digest we want to have
 200     ::comphelper::Hash sha1(::comphelper::HashType::SHA1);
 201     sha1.update(reinterpret_cast<unsigned char const*>(_rURL.getStr()), _rURL.getLength() * sizeof(sal_Unicode));
 202     if ( !_rUserName.isEmpty() )
 203         sha1.update(reinterpret_cast<unsigned char const*>(_rUserName.getStr()), _rUserName.getLength() * sizeof(sal_Unicode));
 204     if ( !_rPassword.isEmpty() )
 205         sha1.update(reinterpret_cast<unsigned char const*>(_rPassword.getStr()), _rPassword.getLength() * sizeof(sal_Unicode));
 206     // now we need to sort the properties
 207     std::sort(_rInfo.begin(),_rInfo.end(),TPropertyValueLessFunctor());
 208
 209     for (PropertyValue const & prop : _rInfo)
 210     {
 211         // we only include strings an integer values
 212         OUString sValue;
 213         if ( prop.Value >>= sValue )
 214             ;
 215         else
 216         {
 217             sal_Int32 nValue = 0;
 218             if ( prop.Value >>= nValue )
 219                 sValue = OUString::number(nValue);
 220             else
 221             {
 222                 Sequence< OUString> aSeq;
 223                 if ( prop.Value >>= aSeq )
 224                 {
 225                     for(OUString const & s : aSeq)
 226                         sha1.update(reinterpret_cast<unsigned char const*>(s.getStr()), s.getLength() * sizeof(sal_Unicode));
 227                 }
 228             }
 229         }
 230         if ( !sValue.isEmpty() )
 231         {
 232             // we don't have to convert this into UTF8 because we don't store on a file system
 233             sha1.update(reinterpret_cast<unsigned char const*>(sValue.getStr()), sValue.getLength() * sizeof(sal_Unicode));
 234         }
 235     }
 236
 237     std::vector<unsigned char> result(sha1.finalize());
 238     std::copy(result.begin(), result.end(), _pBuffer);
 239 }
 240
 241
 242 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */