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/sdbc/ColumnValue.hpp>
  22 #include <com/sun/star/sdbc/XRow.hpp>
  23 #include <com/sun/star/lang/DisposedException.hpp>
  24 #include <comphelper/uno3.hxx>
  25 #include <comphelper/sequence.hxx>
  26 #include <cppuhelper/typeprovider.hxx>
  27 #include <com/sun/star/reflection/ProxyFactory.hpp>
  28 #include <rtl/digest.h>
  29 #include <algorithm>
  30 #include <string.h>
  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 = NULL;
  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(NULL);
 103 }
 104
 105 // XServiceInfo
 106 // --------------------------------------------------------------------------------
 107 OUString SAL_CALL OConnectionWrapper::getImplementationName(  ) throw (::com::sun::star::uno::RuntimeException)
 108 {
 109     return OUString( "com.sun.star.sdbc.drivers.OConnectionWrapper" );
 110 }
 111
 112 // --------------------------------------------------------------------------------
 113 ::com::sun::star::uno::Sequence< OUString > SAL_CALL OConnectionWrapper::getSupportedServiceNames(  ) throw(::com::sun::star::uno::RuntimeException)
 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 ( 0 == ::comphelper::findValue( aSupported, sConnectionService, sal_True ).getLength() )
 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 ) throw(::com::sun::star::uno::RuntimeException)
 135 {
 136     return ::comphelper::findValue( getSupportedServiceNames(), _rServiceName, sal_True ).getLength() != 0;
 137 }
 138
 139 // --------------------------------------------------------------------------------
 140 Any SAL_CALL OConnectionWrapper::queryInterface( const Type& _rType ) throw (RuntimeException)
 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(  ) throw (::com::sun::star::uno::RuntimeException)
 147 {
 148     return ::comphelper::concatSequences(
 149         OConnection_BASE::getTypes(),
 150         m_xTypeProvider->getTypes()
 151     );
 152 }
 153 // -----------------------------------------------------------------------------
 154 // com::sun::star::lang::XUnoTunnel
 155 sal_Int64 SAL_CALL OConnectionWrapper::getSomething( const Sequence< sal_Int8 >& rId ) throw(RuntimeException)
 156 {
 157     if (rId.getLength() == 16 && 0 == memcmp(getUnoTunnelImplementationId().getConstArray(),  rId.getConstArray(), 16 ) )
 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::getUnoTunnelImplementationId()
 167 {
 168     static ::cppu::OImplementationId * pId = 0;
 169     if (! pId)
 170     {
 171         ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
 172         if (! pId)
 173         {
 174             static ::cppu::OImplementationId aId;
 175             pId = &aId;
 176         }
 177     }
 178     return pId->getImplementationId();
 179 }
 180 // -----------------------------------------------------------------------------
 181 namespace
 182 {
 183     class TPropertyValueLessFunctor : public ::std::binary_function< ::com::sun::star::beans::PropertyValue,::com::sun::star::beans::PropertyValue,bool>
 184     {
 185     public:
 186         TPropertyValueLessFunctor()
 187         {}
 188         bool operator() (const ::com::sun::star::beans::PropertyValue& lhs, const ::com::sun::star::beans::PropertyValue& rhs) const
 189         {
 190             return lhs.Name.compareToIgnoreAsciiCase(rhs.Name) < 0;
 191         }
 192     };
 193
 194 }
 195
 196 // -----------------------------------------------------------------------------
 197 // creates a unique id out of the url and sequence of properties
 198 void OConnectionWrapper::createUniqueId( const OUString& _rURL
 199                     ,Sequence< PropertyValue >& _rInfo
 200                     ,sal_uInt8* _pBuffer
 201                     ,const OUString& _rUserName
 202                     ,const OUString& _rPassword)
 203 {
 204     // first we create the digest we want to have
 205     rtlDigest aDigest = rtl_digest_create( rtl_Digest_AlgorithmSHA1 );
 206     rtl_digest_update(aDigest,_rURL.getStr(),_rURL.getLength()*sizeof(sal_Unicode));
 207     if ( !_rUserName.isEmpty() )
 208         rtl_digest_update(aDigest,_rUserName.getStr(),_rUserName.getLength()*sizeof(sal_Unicode));
 209     if ( !_rPassword.isEmpty() )
 210         rtl_digest_update(aDigest,_rPassword.getStr(),_rPassword.getLength()*sizeof(sal_Unicode));
 211     // now we need to sort the properties
 212     PropertyValue* pBegin = _rInfo.getArray();
 213     PropertyValue* pEnd   = pBegin + _rInfo.getLength();
 214     ::std::sort(pBegin,pEnd,TPropertyValueLessFunctor());
 215
 216     pBegin = _rInfo.getArray();
 217     pEnd   = pBegin + _rInfo.getLength();
 218     for (; pBegin != pEnd; ++pBegin)
 219     {
 220         // we only include strings an integer values
 221         OUString sValue;
 222         if ( pBegin->Value >>= sValue )
 223             ;
 224         else
 225         {
 226             sal_Int32 nValue = 0;
 227             if ( pBegin->Value >>= nValue )
 228                 sValue = OUString::valueOf(nValue);
 229             else
 230             {
 231                 Sequence< OUString> aSeq;
 232                 if ( pBegin->Value >>= aSeq )
 233                 {
 234                     const OUString* pSBegin = aSeq.getConstArray();
 235                     const OUString* pSEnd   = pSBegin + aSeq.getLength();
 236                     for(;pSBegin != pSEnd;++pSBegin)
 237                         rtl_digest_update(aDigest,pSBegin->getStr(),pSBegin->getLength()*sizeof(sal_Unicode));
 238                 }
 239             }
 240         }
 241         if ( !sValue.isEmpty() )
 242         {
 243             // we don't have to convert this into UTF8 because we don't store on a file system
 244             rtl_digest_update(aDigest,sValue.getStr(),sValue.getLength()*sizeof(sal_Unicode));
 245         }
 246     }
 247
 248     rtl_digest_get(aDigest,_pBuffer,RTL_DIGEST_LENGTH_SHA1);
 249     // we have to destroy the digest
 250     rtl_digest_destroy(aDigest);
 251 }
 252 // -----------------------------------------------------------------------------
 253
 254
 255 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */