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Diffstat (limited to 'dbaccess/source/ui/dlg/odbcconfig.cxx')
| -rw-r--r-- | dbaccess/source/ui/dlg/odbcconfig.cxx | 325 |
1 files changed, 325 insertions, 0 deletions
diff --git a/dbaccess/source/ui/dlg/odbcconfig.cxx b/dbaccess/source/ui/dlg/odbcconfig.cxx new file mode 100644 index 000000000..b2f3a45ff --- /dev/null +++ b/dbaccess/source/ui/dlg/odbcconfig.cxx @@ -0,0 +1,325 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <config_folders.h> +#include "odbcconfig.hxx" + +#include <rtl/bootstrap.hxx> +#include <rtl/ustring.hxx> +#include <osl/diagnose.h> +#include <osl/process.h> +#include <osl/thread.hxx> +#include <vcl/svapp.hxx> + +#ifdef HAVE_ODBC_SUPPORT + +#if defined(_WIN32) +#define ODBC_LIBRARY "ODBC32.DLL" +#endif +#ifdef UNX +#ifdef MACOSX +#define ODBC_LIBRARY "libiodbc.dylib" +#else +#define ODBC_LIBRARY_PLAIN "libodbc.so" +#define ODBC_LIBRARY_1 "libodbc.so.1" +#define ODBC_LIBRARY "libodbc.so.2" +#endif +#endif + +#include <connectivity/odbc.hxx> + +#else + +#define ODBC_LIBRARY "" + +#endif // HAVE_ODBC_SUPPORT + +namespace dbaui +{ + +#ifdef HAVE_ODBC_SUPPORT +typedef SQLRETURN (SQL_API* TSQLManageDataSource) (SQLHWND hwndParent); +typedef SQLRETURN (SQL_API* TSQLAllocHandle) (SQLSMALLINT HandleType, SQLHANDLE InputHandle, SQLHANDLE* OutputHandlePtr); +typedef SQLRETURN (SQL_API* TSQLFreeHandle) (SQLSMALLINT HandleType, SQLHANDLE Handle); +typedef SQLRETURN (SQL_API* TSQLSetEnvAttr) (SQLHENV EnvironmentHandle, SQLINTEGER Attribute, SQLPOINTER ValuePtr, SQLINTEGER StringLength); +typedef SQLRETURN (SQL_API* TSQLDataSources) (SQLHENV EnvironmentHandle, SQLUSMALLINT Direction, SQLCHAR* ServerName, + SQLSMALLINT BufferLength1, SQLSMALLINT* NameLength1Ptr, SQLCHAR* Description, SQLSMALLINT BufferLength2, SQLSMALLINT* NameLength2Ptr); + +#endif + +// OOdbcLibWrapper + +bool OOdbcEnumeration::load(const char* _pLibPath) +{ + m_sLibPath = OUString::createFromAscii(_pLibPath); +#if defined(HAVE_ODBC_SUPPORT) && !defined(DISABLE_DYNLOADING) + // load the module + m_pOdbcLib = osl_loadModule(m_sLibPath.pData, SAL_LOADMODULE_NOW); + return (nullptr != m_pOdbcLib); +#else + return sal_False; +#endif +} + +void OOdbcEnumeration::unload() +{ +#if defined(HAVE_ODBC_SUPPORT) && !defined(DISABLE_DYNLOADING) + if (isLoaded()) + { + osl_unloadModule(m_pOdbcLib); + m_pOdbcLib = nullptr; + } +#endif +} + +oslGenericFunction OOdbcEnumeration::loadSymbol(const char* _pFunctionName) +{ + return osl_getFunctionSymbol(m_pOdbcLib, OUString::createFromAscii(_pFunctionName).pData); +} + + +struct OdbcTypesImpl +{ +#ifdef HAVE_ODBC_SUPPORT + SQLHANDLE hEnvironment; + OdbcTypesImpl() : hEnvironment(nullptr) { } +#else + void* pDummy; +#endif +}; + +OOdbcEnumeration::OOdbcEnumeration() + :m_pOdbcLib(nullptr) +#ifdef HAVE_ODBC_SUPPORT + ,m_pAllocHandle(nullptr) + ,m_pFreeHandle(nullptr) + ,m_pSetEnvAttr(nullptr) + ,m_pDataSources(nullptr) + ,m_pImpl(new OdbcTypesImpl) +#endif +{ + bool bLoaded = load(ODBC_LIBRARY); +#ifdef ODBC_LIBRARY_1 + if ( !bLoaded ) + bLoaded = load(ODBC_LIBRARY_1); +#endif +#ifdef ODBC_LIBRARY_PLAIN + if ( !bLoaded ) + bLoaded = load(ODBC_LIBRARY_PLAIN); +#endif + + if ( !bLoaded ) + return; + +#ifdef HAVE_ODBC_SUPPORT + // load the generic functions + m_pAllocHandle = loadSymbol("SQLAllocHandle"); + m_pFreeHandle = loadSymbol("SQLFreeHandle"); + m_pSetEnvAttr = loadSymbol("SQLSetEnvAttr"); + m_pDataSources = loadSymbol("SQLDataSources"); + + // all or nothing + if (!m_pAllocHandle || !m_pSetEnvAttr || !m_pDataSources || !m_pFreeHandle) + { + unload(); + m_pAllocHandle = m_pFreeHandle = m_pSetEnvAttr = m_pDataSources = nullptr; + } +#endif +} + +OOdbcEnumeration::~OOdbcEnumeration() +{ + freeEnv(); + unload(); +} + +// OOdbcEnumeration +bool OOdbcEnumeration::allocEnv() +{ + OSL_ENSURE(isLoaded(), "OOdbcEnumeration::allocEnv: not loaded!"); + if (!isLoaded()) + return false; + +#ifdef HAVE_ODBC_SUPPORT + if (m_pImpl->hEnvironment) + // nothing to do + return true; + SQLRETURN nResult = (*reinterpret_cast<TSQLAllocHandle>(m_pAllocHandle))(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &m_pImpl->hEnvironment); + if (SQL_SUCCESS != nResult) + // can't do anything without environment + return false; + + (*reinterpret_cast<TSQLSetEnvAttr>(m_pSetEnvAttr))(m_pImpl->hEnvironment, SQL_ATTR_ODBC_VERSION, reinterpret_cast<SQLPOINTER>(SQL_OV_ODBC3),SQL_IS_INTEGER); + return true; +#else + return sal_False; +#endif +} + +void OOdbcEnumeration::freeEnv() +{ +#ifdef HAVE_ODBC_SUPPORT + if (m_pImpl->hEnvironment) + (*reinterpret_cast<TSQLFreeHandle>(m_pFreeHandle))(SQL_HANDLE_ENV, m_pImpl->hEnvironment); + m_pImpl->hEnvironment = nullptr; +#endif +} + +void OOdbcEnumeration::getDatasourceNames(std::set<OUString>& _rNames) +{ + OSL_ENSURE(isLoaded(), "OOdbcEnumeration::getDatasourceNames: not loaded!"); + if (!isLoaded()) + return; + + if (!allocEnv()) + { + OSL_FAIL("OOdbcEnumeration::getDatasourceNames: could not allocate an ODBC environment!"); + return; + } + +#ifdef HAVE_ODBC_SUPPORT + // now that we have an environment collect the data source names + UCHAR szDSN[SQL_MAX_DSN_LENGTH+1]; + SWORD pcbDSN; + UCHAR szDescription[1024+1]; + SWORD pcbDescription; + SQLRETURN nResult = SQL_SUCCESS; + rtl_TextEncoding nTextEncoding = osl_getThreadTextEncoding(); + + for ( nResult = (*reinterpret_cast<TSQLDataSources>(m_pDataSources))(m_pImpl->hEnvironment, SQL_FETCH_FIRST, szDSN, + sizeof(szDSN), &pcbDSN, szDescription, sizeof(szDescription)-1, &pcbDescription); + ; + nResult = (*reinterpret_cast<TSQLDataSources>(m_pDataSources))(m_pImpl->hEnvironment, SQL_FETCH_NEXT, szDSN, + sizeof(szDSN), &pcbDSN, szDescription, sizeof(szDescription)-1, &pcbDescription) + ) + { + if (nResult != SQL_SUCCESS) + // no further error handling + break; + else + { + OUString aCurrentDsn(reinterpret_cast<const char*>(szDSN),pcbDSN, nTextEncoding); + _rNames.insert(aCurrentDsn); + } + } +#else + (void) _rNames; +#endif +} + +#ifdef HAVE_ODBC_ADMINISTRATION + +// ProcessTerminationWait +class ProcessTerminationWait : public ::osl::Thread +{ + oslProcess m_hProcessHandle; + Link<void*,void> m_aFinishHdl; + ImplSVEvent* m_nEventId; + +public: + ProcessTerminationWait( oslProcess _hProcessHandle, const Link<void*,void>& _rFinishHdl ) + : m_hProcessHandle( _hProcessHandle ) + , m_aFinishHdl( _rFinishHdl ) + , m_nEventId(nullptr) + { + } + + void disableCallback() + { + // if finished event not posted yet, disable by turning it to a no-op Link + m_aFinishHdl = Link<void*, void>(); + if (m_nEventId) + { + // already posted, remove it + Application::RemoveUserEvent(m_nEventId); + m_nEventId = nullptr; + } + } + + void receivedCallback() + { + m_nEventId = nullptr; + } + +protected: + virtual void SAL_CALL run() override + { + osl_setThreadName("dbaui::ProcessTerminationWait"); + + osl_joinProcess( m_hProcessHandle ); + osl_freeProcessHandle( m_hProcessHandle ); + m_nEventId = Application::PostUserEvent( m_aFinishHdl ); + } +}; + +// OOdbcManagement +OOdbcManagement::OOdbcManagement(const Link<void*,void>& rAsyncFinishCallback) + : m_aAsyncFinishCallback(rAsyncFinishCallback) +{ +} + +OOdbcManagement::~OOdbcManagement() +{ + // wait for our thread to be finished + if ( m_pProcessWait ) + m_pProcessWait->join(); +} + +bool OOdbcManagement::manageDataSources_async() +{ + OSL_PRECOND( !isRunning(), "OOdbcManagement::manageDataSources_async: still running from the previous call!" ); + if ( isRunning() ) + return false; + + // this is done in an external process, due to #i78733# + // (and note this whole functionality is supported on Windows only, ATM) + OUString sExecutableName( "$BRAND_BASE_DIR/" LIBO_LIBEXEC_FOLDER "/odbcconfig.exe" ); + ::rtl::Bootstrap::expandMacros( sExecutableName ); //TODO: detect failure + oslProcess hProcessHandle(nullptr); + oslProcessError eError = osl_executeProcess( sExecutableName.pData, nullptr, 0, 0, nullptr, nullptr, nullptr, 0, &hProcessHandle ); + if ( eError != osl_Process_E_None ) + return false; + + m_pProcessWait.reset( new ProcessTerminationWait( hProcessHandle, m_aAsyncFinishCallback ) ); + m_pProcessWait->create(); + return true; +} + +void OOdbcManagement::disableCallback() +{ + if (m_pProcessWait) + m_pProcessWait->disableCallback(); +} + +void OOdbcManagement::receivedCallback() +{ + if (m_pProcessWait) + m_pProcessWait->receivedCallback(); +} + +bool OOdbcManagement::isRunning() const +{ + return ( m_pProcessWait && m_pProcessWait->isRunning() ); +} + +#endif // HAVE_ODBC_ADMINISTRATION + +} // namespace dbaui + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |