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/supportsservice.hxx>
  27 #include <cppuhelper/typeprovider.hxx>
  28 #include <com/sun/star/reflection/ProxyFactory.hpp>
  29 #include <rtl/digest.h>
  30 #include <algorithm>
  31 #include <string.h>
  32
  33 using namespace connectivity;
  34
  35 using namespace com::sun::star::uno;
  36 using namespace com::sun::star::lang;
  37 using namespace com::sun::star::beans;
  38 using namespace com::sun::star::sdbc;
  39 using namespace ::com::sun::star::reflection;
  40
  41 OConnectionWrapper::OConnectionWrapper()
  42 {
  43
  44 }
  45
  46 void OConnectionWrapper::setDelegation(Reference< XAggregation >& _rxProxyConnection,oslInterlockedCount& _rRefCount)
  47 {
  48     OSL_ENSURE(_rxProxyConnection.is(),"OConnectionWrapper: Connection must be valid!");
  49     osl_atomic_increment( &_rRefCount );
  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 = NULL;
  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( &_rRefCount );
  66 }
  67
  68 void OConnectionWrapper::setDelegation(const Reference< XConnection >& _xConnection
  69                                        ,const Reference< XComponentContext>& _rxContext
  70                                        ,oslInterlockedCount& _rRefCount)
  71 {
  72     OSL_ENSURE(_xConnection.is(),"OConnectionWrapper: Connection must be valid!");
  73     osl_atomic_increment( &_rRefCount );
  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 = 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( &_rRefCount );
  93 }
  94
  95 void OConnectionWrapper::disposing()
  96 {
  97 m_xConnection.clear();
  98 }
  99
 100 OConnectionWrapper::~OConnectionWrapper()
 101 {
 102     if (m_xProxyConnection.is())
 103         m_xProxyConnection->setDelegator(NULL);
 104 }
 105
 106 // XServiceInfo
 107
 108 OUString SAL_CALL OConnectionWrapper::getImplementationName(  ) throw (::com::sun::star::uno::RuntimeException, std::exception)
 109 {
 110     return OUString( "com.sun.star.sdbc.drivers.OConnectionWrapper" );
 111 }
 112
 113
 114 ::com::sun::star::uno::Sequence< OUString > SAL_CALL OConnectionWrapper::getSupportedServiceNames(  ) throw(::com::sun::star::uno::RuntimeException, std::exception)
 115 {
 116     // first collect the services which are supported by our aggregate
 117     Sequence< OUString > aSupported;
 118     if ( m_xServiceInfo.is() )
 119         aSupported = m_xServiceInfo->getSupportedServiceNames();
 120
 121     // append our own service, if necessary
 122     OUString sConnectionService( "com.sun.star.sdbc.Connection" );
 123     if ( 0 == ::comphelper::findValue( aSupported, sConnectionService, true ).getLength() )
 124     {
 125         sal_Int32 nLen = aSupported.getLength();
 126         aSupported.realloc( nLen + 1 );
 127         aSupported[ nLen ] = sConnectionService;
 128     }
 129
 130     // outta here
 131     return aSupported;
 132 }
 133
 134
 135 sal_Bool SAL_CALL OConnectionWrapper::supportsService( const OUString& _rServiceName ) throw(::com::sun::star::uno::RuntimeException, std::exception)
 136 {
 137     return cppu::supportsService(this, _rServiceName);
 138 }
 139
 140
 141 Any SAL_CALL OConnectionWrapper::queryInterface( const Type& _rType ) throw (RuntimeException, std::exception)
 142 {
 143     Any aReturn = OConnection_BASE::queryInterface(_rType);
 144     return aReturn.hasValue() ? aReturn : (m_xProxyConnection.is() ? m_xProxyConnection->queryAggregation(_rType) : aReturn);
 145 }
 146
 147 Sequence< Type > SAL_CALL OConnectionWrapper::getTypes(  ) throw (::com::sun::star::uno::RuntimeException, std::exception)
 148 {
 149     return ::comphelper::concatSequences(
 150         OConnection_BASE::getTypes(),
 151         m_xTypeProvider->getTypes()
 152     );
 153 }
 154
 155 // com::sun::star::lang::XUnoTunnel
 156 sal_Int64 SAL_CALL OConnectionWrapper::getSomething( const Sequence< sal_Int8 >& rId ) throw(RuntimeException, std::exception)
 157 {
 158     if (rId.getLength() == 16 && 0 == memcmp(getUnoTunnelImplementationId().getConstArray(),  rId.getConstArray(), 16 ) )
 159         return reinterpret_cast< sal_Int64 >( this );
 160
 161     if(m_xUnoTunnel.is())
 162         return m_xUnoTunnel->getSomething(rId);
 163     return 0;
 164 }
 165
 166
 167 Sequence< sal_Int8 > OConnectionWrapper::getUnoTunnelImplementationId()
 168 {
 169     static ::cppu::OImplementationId * pId = 0;
 170     if (! pId)
 171     {
 172         ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
 173         if (! pId)
 174         {
 175             static ::cppu::OImplementationId aId;
 176             pId = &aId;
 177         }
 178     }
 179     return pId->getImplementationId();
 180 }
 181
 182 namespace
 183 {
 184     class TPropertyValueLessFunctor : public ::std::binary_function< ::com::sun::star::beans::PropertyValue,::com::sun::star::beans::PropertyValue,bool>
 185     {
 186     public:
 187         TPropertyValueLessFunctor()
 188         {}
 189         bool operator() (const ::com::sun::star::beans::PropertyValue& lhs, const ::com::sun::star::beans::PropertyValue& rhs) const
 190         {
 191             return lhs.Name.compareToIgnoreAsciiCase(rhs.Name) < 0;
 192         }
 193     };
 194
 195 }
 196
 197
 198 // creates a unique id out of the url and sequence of properties
 199 void OConnectionWrapper::createUniqueId( const OUString& _rURL
 200                     ,Sequence< PropertyValue >& _rInfo
 201                     ,sal_uInt8* _pBuffer
 202                     ,const OUString& _rUserName
 203                     ,const OUString& _rPassword)
 204 {
 205     // first we create the digest we want to have
 206     rtlDigest aDigest = rtl_digest_create( rtl_Digest_AlgorithmSHA1 );
 207     rtl_digest_update(aDigest,_rURL.getStr(),_rURL.getLength()*sizeof(sal_Unicode));
 208     if ( !_rUserName.isEmpty() )
 209         rtl_digest_update(aDigest,_rUserName.getStr(),_rUserName.getLength()*sizeof(sal_Unicode));
 210     if ( !_rPassword.isEmpty() )
 211         rtl_digest_update(aDigest,_rPassword.getStr(),_rPassword.getLength()*sizeof(sal_Unicode));
 212     // now we need to sort the properties
 213     PropertyValue* pBegin = _rInfo.getArray();
 214     PropertyValue* pEnd   = pBegin + _rInfo.getLength();
 215     ::std::sort(pBegin,pEnd,TPropertyValueLessFunctor());
 216
 217     pBegin = _rInfo.getArray();
 218     pEnd   = pBegin + _rInfo.getLength();
 219     for (; pBegin != pEnd; ++pBegin)
 220     {
 221         // we only include strings an integer values
 222         OUString sValue;
 223         if ( pBegin->Value >>= sValue )
 224             ;
 225         else
 226         {
 227             sal_Int32 nValue = 0;
 228             if ( pBegin->Value >>= nValue )
 229                 sValue = OUString::number(nValue);
 230             else
 231             {
 232                 Sequence< OUString> aSeq;
 233                 if ( pBegin->Value >>= aSeq )
 234                 {
 235                     const OUString* pSBegin = aSeq.getConstArray();
 236                     const OUString* pSEnd   = pSBegin + aSeq.getLength();
 237                     for(;pSBegin != pSEnd;++pSBegin)
 238                         rtl_digest_update(aDigest,pSBegin->getStr(),pSBegin->getLength()*sizeof(sal_Unicode));
 239                 }
 240             }
 241         }
 242         if ( !sValue.isEmpty() )
 243         {
 244             // we don't have to convert this into UTF8 because we don't store on a file system
 245             rtl_digest_update(aDigest,sValue.getStr(),sValue.getLength()*sizeof(sal_Unicode));
 246         }
 247     }
 248
 249     rtl_digest_get(aDigest,_pBuffer,RTL_DIGEST_LENGTH_SHA1);
 250     // we have to destroy the digest
 251     rtl_digest_destroy(aDigest);
 252 }
 253
 254
 255
 256 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */