1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/


#include "odbcconfig.hxx"

#ifdef SYSTEM_ODBC_HEADERS
#include <sqltypes.h>
#else
#include <odbc/sqltypes.h>
#endif

#include <rtl/bootstrap.hxx>
#include <rtl/ustring.hxx>
#include <rtl/ustrbuf.hxx>
#include <osl/diagnose.h>
#include <osl/process.h>
#include <osl/thread.hxx>
#include <tools/debug.hxx>
#include <vcl/svapp.hxx>

#ifdef HAVE_ODBC_SUPPORT

#if defined WNT
#define ODBC_LIBRARY    "ODBC32.DLL"
#define ODBC_UI_LIBRARY "ODBCCP32.DLL"
#endif
#ifdef UNX
#ifdef MACOSX
#define ODBC_LIBRARY        "libiodbc.dylib"
#define ODBC_UI_LIBRARY     "libiodbcinst.dylib"
#else
#define ODBC_LIBRARY_1      "libodbc.so.1"
#define ODBC_UI_LIBRARY_1   "libodbcinst.so.1"
#define ODBC_LIBRARY        "libodbc.so"
#define ODBC_UI_LIBRARY     "libodbcinst.so"
#endif
#endif

// just to go with calling convention of windows
// so don't touch this
#if defined(WNT)
#undef SQL_API
#define SQL_API __stdcall
// At least under some circumstances, the below #include <odbc/sqlext.h> re-
// defines SQL_API to an empty string, leading to a compiler warning on MSC; to
// not break the current behavior, this is worked around by locally disabling
// that warning:
#if defined _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4005)
#endif
#endif // defined(WNT)

#ifdef SYSTEM_ODBC_HEADERS
#include <sqlext.h>
#else
#include <odbc/sqlext.h>
#endif

#if defined(WNT)
#if defined _MSC_VER
#pragma warning(pop)
#endif
#undef SQL_API
#define SQL_API __stdcall
#endif // defined(WNT)
// from here on you can do what you want to

#else

#define ODBC_LIBRARY    ""
#define ODBC_UI_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);

#define NSQLManageDataSource(a) (*(TSQLManageDataSource)(m_pSQLManageDataSource))(a)
#define NSQLAllocHandle(a,b,c) (*(TSQLAllocHandle)(m_pAllocHandle))(a,b,c)
#define NSQLFreeHandle(a,b) (*(TSQLFreeHandle)(m_pFreeHandle))(a,b)
#define NSQLSetEnvAttr(a,b,c,d) (*(TSQLSetEnvAttr)(m_pSetEnvAttr))(a,b,c,d)
#define NSQLDataSources(a,b,c,d,e,f,g,h) (*(TSQLDataSources)(m_pDataSources))(a,b,c,d,e,f,g,h)
#endif

//=========================================================================
//= OOdbcLibWrapper
//=========================================================================
DBG_NAME(OOdbcLibWrapper)
//-------------------------------------------------------------------------
#ifdef HAVE_ODBC_SUPPORT
OOdbcLibWrapper::OOdbcLibWrapper()
    :m_pOdbcLib(NULL)
{
    DBG_CTOR(OOdbcLibWrapper,NULL);

}
#endif

//-------------------------------------------------------------------------
sal_Bool OOdbcLibWrapper::load(const sal_Char* _pLibPath)
{
    m_sLibPath = ::rtl::OUString::createFromAscii(_pLibPath);
#ifdef HAVE_ODBC_SUPPORT
    // load the module
    m_pOdbcLib = osl_loadModule(m_sLibPath.pData, SAL_LOADMODULE_NOW);
    return (NULL != m_pOdbcLib);
#endif
}

//-------------------------------------------------------------------------
void OOdbcLibWrapper::unload()
{
#ifdef HAVE_ODBC_SUPPORT
    if (isLoaded())
    {
        osl_unloadModule(m_pOdbcLib);
        m_pOdbcLib = NULL;
    }
#endif
}

//-------------------------------------------------------------------------
oslGenericFunction OOdbcLibWrapper::loadSymbol(const sal_Char* _pFunctionName)
{
    return osl_getFunctionSymbol(m_pOdbcLib, ::rtl::OUString::createFromAscii(_pFunctionName).pData);
}

//-------------------------------------------------------------------------
OOdbcLibWrapper::~OOdbcLibWrapper()
{
    unload();

    DBG_DTOR(OOdbcLibWrapper,NULL);
}

//=========================================================================
//= OOdbcEnumeration
//=========================================================================
struct OdbcTypesImpl
{
#ifdef HAVE_ODBC_SUPPORT
    SQLHANDLE   hEnvironment;
    OdbcTypesImpl() : hEnvironment(0) { }
#else
    void*       pDummy;
#endif
};
DBG_NAME(OOdbcEnumeration)
//-------------------------------------------------------------------------
OOdbcEnumeration::OOdbcEnumeration()<--- Member variable 'OOdbcEnumeration::m_pImpl' is not initialized in the constructor.
#ifdef HAVE_ODBC_SUPPORT
    :m_pAllocHandle(NULL)
    ,m_pSetEnvAttr(NULL)
    ,m_pDataSources(NULL)
    ,m_pImpl(new OdbcTypesImpl)
#endif
{
    DBG_CTOR(OOdbcEnumeration,NULL);

    sal_Bool bLoaded = load(ODBC_LIBRARY);
#ifdef ODBC_LIBRARY_1
    if ( !bLoaded )
        bLoaded = load(ODBC_LIBRARY_1);
#endif

    if ( bLoaded )
    {
#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 = NULL;
        }
#endif
    }
}

//-------------------------------------------------------------------------
OOdbcEnumeration::~OOdbcEnumeration()
{
    freeEnv();
    delete m_pImpl;

    DBG_DTOR(OOdbcEnumeration,NULL);
}

//-------------------------------------------------------------------------
sal_Bool OOdbcEnumeration::allocEnv()
{
    OSL_ENSURE(isLoaded(), "OOdbcEnumeration::allocEnv: not loaded!");
    if (!isLoaded())
        return sal_False;

#ifdef HAVE_ODBC_SUPPORT
    if (m_pImpl->hEnvironment)
        // nothing to do
        return sal_True;
    SQLRETURN nResult = NSQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &m_pImpl->hEnvironment);
    if (SQL_SUCCESS != nResult)
        // can't do anything without environment
        return sal_False;

    NSQLSetEnvAttr(m_pImpl->hEnvironment, SQL_ATTR_ODBC_VERSION, (SQLPOINTER)SQL_OV_ODBC3, SQL_IS_INTEGER);
    return sal_True;
#else
    return sal_False;
#endif
}

//-------------------------------------------------------------------------
void OOdbcEnumeration::freeEnv()
{
#ifdef HAVE_ODBC_SUPPORT
    if (m_pImpl->hEnvironment)
        NSQLFreeHandle(SQL_HANDLE_ENV, m_pImpl->hEnvironment);
    m_pImpl->hEnvironment  = 0;
#endif
}

//-------------------------------------------------------------------------
void OOdbcEnumeration::getDatasourceNames(StringBag& _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 = NSQLDataSources(m_pImpl->hEnvironment, SQL_FETCH_FIRST, szDSN, sizeof(szDSN), &pcbDSN, szDescription, sizeof(szDescription)-1, &pcbDescription);
            ;
            nResult = NSQLDataSources(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
        {
            ::rtl::OUString aCurrentDsn(reinterpret_cast<const char*>(szDSN),pcbDSN, nTextEncoding);
            _rNames.insert(aCurrentDsn);
        }
    }
#endif
}

#ifdef HAVE_ODBC_ADMINISTRATION

//=========================================================================
//= ProcessTerminationWait
//=========================================================================
class ProcessTerminationWait : public ::osl::Thread
{
    oslProcess  m_hProcessHandle;
    Link        m_aFinishHdl;

public:
    ProcessTerminationWait( oslProcess _hProcessHandle, const Link& _rFinishHdl )
        :m_hProcessHandle( _hProcessHandle )
        ,m_aFinishHdl( _rFinishHdl )
    {
    }

protected:
    virtual void SAL_CALL run()
    {
        osl_joinProcess( m_hProcessHandle );
        osl_freeProcessHandle( m_hProcessHandle );
        Application::PostUserEvent( m_aFinishHdl );
    }
};

//=========================================================================
//= OOdbcManagement
//=========================================================================
//-------------------------------------------------------------------------
OOdbcManagement::OOdbcManagement( const Link& _rAsyncFinishCallback )
    :m_pProcessWait( NULL )
    ,m_aAsyncFinishCallback( _rAsyncFinishCallback )
{
}

//-------------------------------------------------------------------------
OOdbcManagement::~OOdbcManagement()
{
    // wait for our thread to be finished
    if ( m_pProcessWait.get() )
        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)
    ::rtl::OUString sExecutableName( RTL_CONSTASCII_USTRINGPARAM( "$BRAND_BASE_DIR/program/odbcconfig.exe" ) );
    ::rtl::Bootstrap::expandMacros( sExecutableName ); //TODO: detect failure
    oslProcess hProcessHandle(0);
    oslProcessError eError = osl_executeProcess( sExecutableName.pData, NULL, 0, 0, NULL, NULL, NULL, 0, &hProcessHandle );
    if ( eError != osl_Process_E_None )
        return false;

    m_pProcessWait.reset( new ProcessTerminationWait( hProcessHandle, m_aAsyncFinishCallback ) );
    m_pProcessWait->create();
    return true;
}

//-------------------------------------------------------------------------
bool OOdbcManagement::isRunning() const
{
    return ( m_pProcessWait.get() && m_pProcessWait->isRunning() );
}

#endif // HAVE_ODBC_ADMINISTRATION

//.........................................................................
}   // namespace dbaui
//.........................................................................

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */