xref: /aoo42x/main/cppuhelper/source/bootstrap.cxx (revision b32aa359) 
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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_cppuhelper.hxx"
26 
27 #include <string.h>
28 #include <vector>
29 
30 #include "rtl/process.h"
31 #include "rtl/bootstrap.hxx"
32 #include "rtl/random.h"
33 #include "rtl/string.hxx"
34 #include "rtl/ustrbuf.hxx"
35 #include "rtl/uri.hxx"
36 #if OSL_DEBUG_LEVEL > 0
37 #include "rtl/strbuf.hxx"
38 #endif
39 #include "osl/diagnose.h"
40 #include "osl/file.hxx"
41 #include "osl/module.hxx"
42 #include "osl/security.hxx"
43 #include "osl/thread.hxx"
44 
45 #include "cppuhelper/shlib.hxx"
46 #include "cppuhelper/bootstrap.hxx"
47 #include "cppuhelper/component_context.hxx"
48 #include "cppuhelper/access_control.hxx"
49 #include "cppuhelper/findsofficepath.h"
50 
51 #include <cppuhelper/com/sun/star/container/XElementAccess.hpp>
52 
53 #include "com/sun/star/uno/XComponentContext.hpp"
54 #include "com/sun/star/uno/XCurrentContext.hpp"
55 
56 #include "com/sun/star/lang/XSingleServiceFactory.hpp"
57 #include "com/sun/star/lang/XSingleComponentFactory.hpp"
58 #include "com/sun/star/lang/XInitialization.hpp"
59 #include "com/sun/star/lang/XServiceInfo.hpp"
60 #include "com/sun/star/registry/XSimpleRegistry.hpp"
61 #include "com/sun/star/container/XSet.hpp"
62 #include "com/sun/star/beans/PropertyValue.hpp"
63 #include "com/sun/star/io/IOException.hpp"
64 #include "com/sun/star/bridge/UnoUrlResolver.hpp"
65 #include "com/sun/star/bridge/XUnoUrlResolver.hpp"
66 
67 #include "macro_expander.hxx"
68 
69 #define OUSTR(x) ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(x) )
70 #define ARLEN(x) sizeof (x) / sizeof *(x)
71 
72 void primeWeakMap( void); // as defined in primeweak.cxx
73 
74 using namespace ::rtl;
75 using namespace ::osl;
76 using namespace ::com::sun::star;
77 using namespace ::com::sun::star::uno;
78 
79 namespace cppu
80 {
81 
82 OUString const & get_this_libpath()
83 {
84     static OUString s_path;
85     if (0 == s_path.getLength())
86     {
87         OUString path;
88         Module::getUrlFromAddress( reinterpret_cast<oslGenericFunction>(get_this_libpath), path );
89         path = path.copy( 0, path.lastIndexOf( '/' ) );
90         MutexGuard guard( Mutex::getGlobalMutex() );
91         if (0 == s_path.getLength())
92             s_path = path;
93     }
94     return s_path;
95 }
96 
97 Bootstrap const & get_unorc() SAL_THROW( () )
98 {
99     static rtlBootstrapHandle s_bstrap = 0;
100     if (! s_bstrap)
101     {
102         OUString iniName(
103             get_this_libpath() + OUSTR("/" SAL_CONFIGFILE("uno")) );
104         rtlBootstrapHandle bstrap = rtl_bootstrap_args_open( iniName.pData );
105 
106         ClearableMutexGuard guard( Mutex::getGlobalMutex() );
107         if (s_bstrap)
108         {
109             guard.clear();
110             rtl_bootstrap_args_close( bstrap );
111         }
112         else
113         {
114             s_bstrap = bstrap;
115         }
116     }
117     return *(Bootstrap const *)&s_bstrap;
118 }
119 
120 
121 void addFactories(
122     char const * const * ppNames /* lib, implname, ..., 0 */,
123     OUString const & bootstrapPath,
124     Reference< lang::XMultiComponentFactory > const & xMgr,
125     Reference< registry::XRegistryKey > const & xKey )
126     SAL_THROW( (Exception) )
127 {
128     Reference< container::XSet > xSet( xMgr, UNO_QUERY );
129     OSL_ASSERT( xSet.is() );
130     Reference< lang::XMultiServiceFactory > xSF( xMgr, UNO_QUERY );
131 
132     while (*ppNames)
133     {
134         OUString lib( OUString::createFromAscii( *ppNames++ ) );
135         OUString implName( OUString::createFromAscii( *ppNames++ ) );
136 
137         Any aFac( makeAny( loadSharedLibComponentFactory(
138                                lib, bootstrapPath, implName, xSF, xKey ) ) );
139         xSet->insert( aFac );
140 #if OSL_DEBUG_LEVEL > 1
141         if (xSet->has( aFac ))
142         {
143             Reference< lang::XServiceInfo > xInfo;
144             if (aFac >>= xInfo)
145             {
146                 ::fprintf(
147                     stderr, "> implementation %s supports: ", ppNames[ -1 ] );
148                 Sequence< OUString > supported(
149                     xInfo->getSupportedServiceNames() );
150                 for ( sal_Int32 nPos = supported.getLength(); nPos--; )
151                 {
152                     OString str( OUStringToOString(
153                         supported[ nPos ], RTL_TEXTENCODING_ASCII_US ) );
154                     ::fprintf( stderr, nPos ? "%s, " : "%s\n", str.getStr() );
155                 }
156             }
157             else
158             {
159                 ::fprintf(
160                     stderr,
161                     "> implementation %s provides NO lang::XServiceInfo!!!\n",
162                     ppNames[ -1 ] );
163             }
164         }
165 #endif
166 #if OSL_DEBUG_LEVEL > 0
167         if (! xSet->has( aFac ))
168         {
169             OStringBuffer buf( 64 );
170             buf.append( "### failed inserting shared lib \"" );
171             buf.append( ppNames[ -2 ] );
172             buf.append( "\"!!!" );
173             OString str( buf.makeStringAndClear() );
174             OSL_ENSURE( 0, str.getStr() );
175         }
176 #endif
177     }
178 }
179 
180 // private forward decl
181 SAL_DLLPUBLIC_EXPORT
182 Reference< lang::XMultiComponentFactory > bootstrapInitialSF(
183     OUString const & rBootstrapPath )
184     SAL_THROW( (Exception) );
185 
186 Reference< XComponentContext > bootstrapInitialContext(
187     Reference< lang::XMultiComponentFactory > const & xSF,
188     Reference< registry::XSimpleRegistry > const & types_xRegistry,
189     Reference< registry::XSimpleRegistry > const & services_xRegistry,
190     OUString const & rBootstrapPath, Bootstrap const & bootstrap )
191     SAL_THROW( (Exception) );
192 
193 Reference< XComponentContext > SAL_CALL createInitialCfgComponentContext(
194     ContextEntry_Init const * pEntries, sal_Int32 nEntries,
195     Reference< XComponentContext > const & xDelegate )
196     SAL_THROW( () );
197 
198 Reference< registry::XSimpleRegistry > SAL_CALL createRegistryWrapper(
199     const Reference< XComponentContext >& xContext );
200 
201 namespace {
202 
203 template< class T >
204 inline beans::PropertyValue createPropertyValue(
205     OUString const & name, T const & value )
206     SAL_THROW( () )
207 {
208     return beans::PropertyValue(
209         name, -1, makeAny( value ), beans::PropertyState_DIRECT_VALUE );
210 }
211 
212 OUString findBoostrapArgument(
213     const Bootstrap & bootstrap,
214     const OUString & arg_name,
215     sal_Bool * pFallenBack )
216     SAL_THROW(())
217 {
218     OUString result;
219 
220     OUString prefixed_arg_name = OUSTR("UNO_");
221     prefixed_arg_name += arg_name.toAsciiUpperCase();
222 
223     // environment not set -> try relative to executable
224     if(!bootstrap.getFrom(prefixed_arg_name, result))
225     {
226         if(pFallenBack)
227             *pFallenBack = sal_True;
228 
229         OUString fileName;
230         bootstrap.getIniName(fileName);
231 
232         // cut the rc extension
233         OUStringBuffer result_buf( 64 );
234         result_buf.append(
235             fileName.copy(
236                 0, fileName.getLength() - strlen(SAL_CONFIGFILE(""))) );
237         result_buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("_") );
238         result_buf.append( arg_name.toAsciiLowerCase() );
239         result_buf.appendAscii( RTL_CONSTASCII_STRINGPARAM(".rdb") );
240         result = result_buf.makeStringAndClear();
241 
242 #if OSL_DEBUG_LEVEL > 1
243         OString result_dbg =
244             OUStringToOString(result, RTL_TEXTENCODING_ASCII_US);
245         OString arg_name_dbg =
246             OUStringToOString(arg_name, RTL_TEXTENCODING_ASCII_US);
247         OSL_TRACE(
248             "cppuhelper::findBoostrapArgument - "
249             "setting %s relative to executable: %s\n",
250             arg_name_dbg.getStr(),
251             result_dbg.getStr() );
252 #endif
253     }
254     else
255     {
256         if(pFallenBack)
257             *pFallenBack = sal_False;
258 
259 #if OSL_DEBUG_LEVEL > 1
260         OString prefixed_arg_name_dbg = OUStringToOString(
261             prefixed_arg_name, RTL_TEXTENCODING_ASCII_US );
262         OString result_dbg = OUStringToOString(
263             result, RTL_TEXTENCODING_ASCII_US );
264         OSL_TRACE(
265             "cppuhelper::findBoostrapArgument - found %s in env: %s",
266             prefixed_arg_name_dbg.getStr(),
267             result_dbg.getStr() );
268 #endif
269     }
270 
271     return result;
272 }
273 
274 Reference< registry::XSimpleRegistry > nestRegistries(
275     const OUString baseDir,
276     const Reference< lang::XSingleServiceFactory > & xSimRegFac,
277     const Reference< lang::XSingleServiceFactory > & xNesRegFac,
278     OUString csl_rdbs,
279     const OUString & write_rdb,
280     sal_Bool forceWrite_rdb,
281     sal_Bool bFallenBack )
282     SAL_THROW((Exception))
283 {
284     sal_Int32 index;
285     Reference< registry::XSimpleRegistry > lastRegistry;
286 
287     if(write_rdb.getLength()) // is there a write registry given?
288     {
289         lastRegistry.set(xSimRegFac->createInstance(), UNO_QUERY);
290 
291         try
292         {
293             lastRegistry->open(write_rdb, sal_False, forceWrite_rdb);
294         }
295         catch (registry::InvalidRegistryException & invalidRegistryException)
296         {
297             (void) invalidRegistryException;
298 #if OSL_DEBUG_LEVEL > 1
299             OString rdb_name_tmp = OUStringToOString(
300                 write_rdb, RTL_TEXTENCODING_ASCII_US);
301             OString message_dbg = OUStringToOString(
302                 invalidRegistryException.Message, RTL_TEXTENCODING_ASCII_US);
303             OSL_TRACE(
304                 "warning: couldn't open %s cause of %s",
305                 rdb_name_tmp.getStr(), message_dbg.getStr() );
306 #endif
307         }
308 
309         if(!lastRegistry->isValid())
310             lastRegistry.clear();
311     }
312 
313     do
314     {
315         index = csl_rdbs.indexOf((sal_Unicode)' ');
316         OUString rdb_name = (index == -1) ? csl_rdbs : csl_rdbs.copy(0, index);
317         csl_rdbs = (index == -1) ? OUString() : csl_rdbs.copy(index + 1);
318 
319         if (! rdb_name.getLength())
320             continue;
321 
322         bool optional = ('?' == rdb_name[ 0 ]);
323         if (optional)
324             rdb_name = rdb_name.copy( 1 );
325 
326         try
327         {
328             Reference<registry::XSimpleRegistry> simpleRegistry(
329                 xSimRegFac->createInstance(), UNO_QUERY_THROW );
330 
331             osl::FileBase::getAbsoluteFileURL(baseDir, rdb_name, rdb_name);
332             simpleRegistry->open(rdb_name, sal_True, sal_False);
333 
334             if(lastRegistry.is())
335             {
336                 Reference< registry::XSimpleRegistry > nestedRegistry(
337                     xNesRegFac->createInstance(), UNO_QUERY );
338                 Reference< lang::XInitialization > nestedRegistry_xInit(
339                     nestedRegistry, UNO_QUERY );
340 
341                 Sequence<Any> aArgs(2);
342                 aArgs[0] <<= lastRegistry;
343                 aArgs[1] <<= simpleRegistry;
344 
345                 nestedRegistry_xInit->initialize(aArgs);
346 
347                 lastRegistry = nestedRegistry;
348             }
349             else
350                 lastRegistry = simpleRegistry;
351         }
352         catch(registry::InvalidRegistryException & invalidRegistryException)
353         {
354             if (! optional)
355             {
356                 // if a registry was explicitly given, the exception shall fly
357                 if( ! bFallenBack )
358                     throw;
359             }
360 
361             (void) invalidRegistryException;
362 #if OSL_DEBUG_LEVEL > 1
363             OString rdb_name_tmp = OUStringToOString(
364                 rdb_name, RTL_TEXTENCODING_ASCII_US );
365             OString message_dbg = OUStringToOString(
366                 invalidRegistryException.Message, RTL_TEXTENCODING_ASCII_US );
367             OSL_TRACE(
368                 "warning: couldn't open %s cause of %s",
369                 rdb_name_tmp.getStr(), message_dbg.getStr() );
370 #endif
371         }
372     }
373     while(index != -1 && csl_rdbs.getLength()); // are there more rdbs in list?
374 
375     return lastRegistry;
376 }
377 
378 Reference< XComponentContext >
379 SAL_CALL defaultBootstrap_InitialComponentContext(
380     Bootstrap const & bootstrap )
381     SAL_THROW( (Exception) )
382 {
383     primeWeakMap();
384 
385     OUString bootstrapPath;
386     if (!bootstrap.getFrom(
387             rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("URE_INTERNAL_LIB_DIR")),
388             bootstrapPath))
389     {
390         bootstrapPath = get_this_libpath();
391     }
392 
393     OUString iniDir;
394     osl_getProcessWorkingDir(&iniDir.pData);
395 
396     Reference<lang::XMultiComponentFactory> smgr_XMultiComponentFactory(
397         bootstrapInitialSF(bootstrapPath) );
398     Reference<lang::XMultiServiceFactory> smgr_XMultiServiceFactory(
399         smgr_XMultiComponentFactory, UNO_QUERY );
400 
401     Reference<registry::XRegistryKey> xEmptyKey;
402     Reference<lang::XSingleServiceFactory> xSimRegFac(
403         loadSharedLibComponentFactory(
404             OUSTR("bootstrap.uno" SAL_DLLEXTENSION), bootstrapPath,
405             OUSTR("com.sun.star.comp.stoc.SimpleRegistry"),
406             smgr_XMultiServiceFactory,
407             xEmptyKey),
408         UNO_QUERY);
409 
410     Reference<lang::XSingleServiceFactory> xNesRegFac(
411         loadSharedLibComponentFactory(
412             OUSTR("bootstrap.uno" SAL_DLLEXTENSION), bootstrapPath,
413             OUSTR("com.sun.star.comp.stoc.NestedRegistry"),
414             smgr_XMultiServiceFactory,
415             xEmptyKey),
416         UNO_QUERY);
417 
418     sal_Bool bFallenback_types;
419     OUString cls_uno_types =
420         findBoostrapArgument( bootstrap, OUSTR("TYPES"), &bFallenback_types );
421 
422     Reference<registry::XSimpleRegistry> types_xRegistry =
423         nestRegistries(
424             iniDir, xSimRegFac, xNesRegFac, cls_uno_types,
425             OUString(), sal_False, bFallenback_types );
426 
427     // ==== bootstrap from services registry ====
428 
429     sal_Bool bFallenback_services;
430     OUString cls_uno_services = findBoostrapArgument(
431         bootstrap, OUSTR("SERVICES"), &bFallenback_services );
432 
433     sal_Bool fallenBackWriteRegistry;
434     OUString write_rdb = findBoostrapArgument(
435         bootstrap, OUSTR("WRITERDB"), &fallenBackWriteRegistry );
436     if (fallenBackWriteRegistry)
437     {
438         // no standard write rdb anymore
439         write_rdb = OUString();
440     }
441 
442     Reference<registry::XSimpleRegistry> services_xRegistry = nestRegistries(
443         iniDir, xSimRegFac, xNesRegFac, cls_uno_services, write_rdb,
444         !fallenBackWriteRegistry, bFallenback_services );
445 
446     Reference< XComponentContext > xContext(
447         bootstrapInitialContext(
448             smgr_XMultiComponentFactory, types_xRegistry, services_xRegistry,
449             bootstrapPath, bootstrap ) );
450 
451     // initialize sf
452     Reference< lang::XInitialization > xInit(
453         smgr_XMultiComponentFactory, UNO_QUERY );
454     OSL_ASSERT( xInit.is() );
455     Sequence< Any > aSFInit( 1 );
456     aSFInit[ 0 ] <<= services_xRegistry;
457     xInit->initialize( aSFInit );
458 
459     return xContext;
460 }
461 
462 }
463 
464 Reference< XComponentContext >
465 SAL_CALL defaultBootstrap_InitialComponentContext(
466     OUString const & iniFile )
467     SAL_THROW( (Exception) )
468 {
469     Bootstrap bootstrap( iniFile );
470     if (bootstrap.getHandle() == 0)
471         throw io::IOException(OUSTR("Cannot open for reading: ") + iniFile, 0);
472     return defaultBootstrap_InitialComponentContext( bootstrap );
473 }
474 
475 Reference< XComponentContext >
476 SAL_CALL defaultBootstrap_InitialComponentContext()
477     SAL_THROW( (Exception) )
478 {
479     return defaultBootstrap_InitialComponentContext( get_unorc() );
480 }
481 
482 BootstrapException::BootstrapException()
483 {
484 }
485 
486 BootstrapException::BootstrapException( const ::rtl::OUString & rMessage )
487     :m_aMessage( rMessage )
488 {
489 }
490 
491 BootstrapException::BootstrapException( const BootstrapException & e )
492 {
493     m_aMessage = e.m_aMessage;
494 }
495 
496 BootstrapException::~BootstrapException()
497 {
498 }
499 
500 BootstrapException & BootstrapException::operator=( const BootstrapException & e )
501 {
502     m_aMessage = e.m_aMessage;
503     return *this;
504 }
505 
506 const ::rtl::OUString & BootstrapException::getMessage() const
507 {
508     return m_aMessage;
509 }
510 
511 Reference< XComponentContext > SAL_CALL bootstrap()
512 {
513     Reference< XComponentContext > xRemoteContext;
514 
515     try
516     {
517         char const * p1 = cppuhelper_detail_findSofficePath();
518         if (p1 == NULL) {
519             throw BootstrapException(
520                 OUSTR("no soffice installation found!"));
521         }
522         rtl::OUString p2;
523         if (!rtl_convertStringToUString(
524                 &p2.pData, p1, strlen(p1), osl_getThreadTextEncoding(),
525                 (RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_ERROR |
526                  RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_ERROR |
527                  RTL_TEXTTOUNICODE_FLAGS_INVALID_ERROR)))
528         {
529             throw BootstrapException(
530                 OUSTR("bad characters in soffice installation path!"));
531         }
532         OUString path;
533         if (osl::FileBase::getFileURLFromSystemPath(p2, path) !=
534             osl::FileBase::E_None)
535         {
536             throw BootstrapException(
537                 OUSTR("cannot convert soffice installation path to URL!"));
538         }
539         if (path.getLength() > 0 && path[path.getLength() - 1] != '/') {
540             path += OUSTR("/");
541         }
542 
543         OUString uri;
544         if (!Bootstrap::get(OUSTR("URE_BOOTSTRAP"), uri)) {
545             Bootstrap::set(
546                 OUSTR("URE_BOOTSTRAP"),
547                 Bootstrap::encode(path + OUSTR(SAL_CONFIGFILE("fundamental"))));
548         }
549 
550         // create default local component context
551         Reference< XComponentContext > xLocalContext(
552             defaultBootstrap_InitialComponentContext() );
553         if ( !xLocalContext.is() )
554             throw BootstrapException( OUSTR( "no local component context!" ) );
555 
556         // create a random pipe name
557         rtlRandomPool hPool = rtl_random_createPool();
558         if ( hPool == 0 )
559             throw BootstrapException( OUSTR( "cannot create random pool!" ) );
560         sal_uInt8 bytes[ 16 ];
561         if ( rtl_random_getBytes( hPool, bytes, ARLEN( bytes ) )
562             != rtl_Random_E_None )
563             throw BootstrapException( OUSTR( "random pool error!" ) );
564         rtl_random_destroyPool( hPool );
565         ::rtl::OUStringBuffer buf;
566         buf.appendAscii( RTL_CONSTASCII_STRINGPARAM( "uno" ) );
567         for ( sal_uInt32 i = 0; i < ARLEN( bytes ); ++i )
568             buf.append( static_cast< sal_Int32 >( bytes[ i ] ) );
569         OUString sPipeName( buf.makeStringAndClear() );
570 
571         // accept string
572         OSL_ASSERT( buf.getLength() == 0 );
573         buf.appendAscii( RTL_CONSTASCII_STRINGPARAM( "-accept=pipe,name=" ) );
574         buf.append( sPipeName );
575         buf.appendAscii( RTL_CONSTASCII_STRINGPARAM( ";urp;" ) );
576 
577         // arguments
578         OUString args [] = {
579             OUSTR( "-nologo" ),
580             OUSTR( "-nodefault" ),
581             OUSTR( "-norestore" ),
582             OUSTR( "-nocrashreport" ),
583             OUSTR( "-nolockcheck" ),
584             buf.makeStringAndClear()
585         };
586         rtl_uString * ar_args [] = {
587             args[ 0 ].pData,
588             args[ 1 ].pData,
589             args[ 2 ].pData,
590             args[ 3 ].pData,
591             args[ 4 ].pData,
592             args[ 5 ].pData
593         };
594         ::osl::Security sec;
595 
596         // start office process
597         oslProcess hProcess = 0;
598         oslProcessError rc = osl_executeProcess(
599             (path + OUSTR("soffice")).pData, ar_args, ARLEN( ar_args ),
600             osl_Process_DETACHED,
601             sec.getHandle(),
602             0, // => current working dir
603             0, 0, // => no env vars
604             &hProcess );
605         switch ( rc )
606         {
607             case osl_Process_E_None:
608                 osl_freeProcessHandle( hProcess );
609                 break;
610             case osl_Process_E_NotFound:
611                 throw BootstrapException( OUSTR( "image not found!" ) );
612             case osl_Process_E_TimedOut:
613                 throw BootstrapException( OUSTR( "timeout occurred!" ) );
614             case osl_Process_E_NoPermission:
615                 throw BootstrapException( OUSTR( "permission denied!" ) );
616             case osl_Process_E_Unknown:
617                 throw BootstrapException( OUSTR( "unknown error!" ) );
618             case osl_Process_E_InvalidError:
619             default:
620                 throw BootstrapException( OUSTR( "unmapped error!" ) );
621         }
622 
623         // create a URL resolver
624         Reference< bridge::XUnoUrlResolver > xUrlResolver(
625             bridge::UnoUrlResolver::create( xLocalContext ) );
626 
627         // connection string
628         OSL_ASSERT( buf.getLength() == 0 );
629         buf.appendAscii( RTL_CONSTASCII_STRINGPARAM( "uno:pipe,name=" ) );
630         buf.append( sPipeName );
631         buf.appendAscii( RTL_CONSTASCII_STRINGPARAM(
632             ";urp;StarOffice.ComponentContext" ) );
633         OUString sConnectString( buf.makeStringAndClear() );
634 
635         // wait until office is started
636         for ( ; ; )
637         {
638             try
639             {
640                 // try to connect to office
641                 xRemoteContext.set(
642                     xUrlResolver->resolve( sConnectString ), UNO_QUERY_THROW );
643                 break;
644             }
645             catch ( connection::NoConnectException & )
646             {
647                 // wait 500 ms, then try to connect again
648                 TimeValue tv = { 0 /* secs */, 500000000 /* nanosecs */ };
649                 ::osl::Thread::wait( tv );
650             }
651         }
652     }
653     catch ( Exception & e )
654     {
655         throw BootstrapException(
656             OUSTR( "unexpected UNO exception caught: " ) + e.Message );
657     }
658 
659     return xRemoteContext;
660 }
661 
662 OUString bootstrap_expandUri(OUString const & uri) {
663     static char const PREFIX[] = "vnd.sun.star.expand:";
664     return uri.matchAsciiL(RTL_CONSTASCII_STRINGPARAM(PREFIX))
665         ? cppuhelper::detail::expandMacros(
666             rtl::Uri::decode(
667                 uri.copy(RTL_CONSTASCII_LENGTH(PREFIX)),
668                 rtl_UriDecodeWithCharset, RTL_TEXTENCODING_UTF8))
669         : uri;
670 }
671 
672 } // namespace cppu
673