xref: /aoo41x/main/starmath/source/smdetect.cxx (revision f2113f94)
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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_starmath.hxx"
26 
27 #include "smdetect.hxx"
28 
29 //#include <framework/interaction.hxx>
30 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
31 #include <com/sun/star/beans/PropertyValue.hpp>
32 #include <com/sun/star/frame/XFrame.hpp>
33 #include <com/sun/star/frame/XModel.hpp>
34 #include <com/sun/star/awt/XWindow.hpp>
35 #include <com/sun/star/lang/XUnoTunnel.hpp>
36 #ifndef _UNOTOOLS_PROCESSFACTORY_HXX
37 #include <comphelper/processfactory.hxx>
38 #endif
39 #include <com/sun/star/beans/PropertyValue.hpp>
40 #include <com/sun/star/io/XInputStream.hpp>
41 #include <com/sun/star/task/XInteractionHandler.hpp>
42 #include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
43 #include <com/sun/star/ucb/CommandAbortedException.hpp>
44 #include <com/sun/star/ucb/InteractiveAppException.hpp>
45 #include <com/sun/star/ucb/XContent.hpp>
46 #include <com/sun/star/packages/zip/ZipIOException.hpp>
47 #include <framework/interaction.hxx>
48 
49 #ifndef _TOOLKIT_UNOHLP_HXX
50 #include <toolkit/helper/vclunohelper.hxx>
51 #endif
52 #include <ucbhelper/simpleinteractionrequest.hxx>
53 
54 #include <rtl/ustring.h>
55 #include <rtl/logfile.hxx>
56 #include <svl/itemset.hxx>
57 #include <vcl/window.hxx>
58 #include <svl/eitem.hxx>
59 #include <svl/stritem.hxx>
60 #include <tools/urlobj.hxx>
61 #include <vos/mutex.hxx>
62 #include <svtools/sfxecode.hxx>
63 #include <svtools/ehdl.hxx>
64 #include <sot/storinfo.hxx>
65 #include <vcl/svapp.hxx>
66 #include <sfx2/app.hxx>
67 #include <sfx2/sfxsids.hrc>
68 #include <sfx2/request.hxx>
69 #include <sfx2/docfile.hxx>
70 #include <sfx2/docfilt.hxx>
71 #include <sfx2/fcontnr.hxx>
72 #include <sfx2/brokenpackageint.hxx>
73 
74 #include "document.hxx"
75 #include "eqnolefilehdr.hxx"
76 
77 
78 using namespace ::com::sun::star;
79 using namespace ::com::sun::star::uno;
80 using namespace ::com::sun::star::io;
81 using namespace ::com::sun::star::frame;
82 using namespace ::com::sun::star::task;
83 using namespace ::com::sun::star::beans;
84 using namespace ::com::sun::star::lang;
85 using namespace ::com::sun::star::ucb;
86 using namespace ::rtl;
87 
88 SmFilterDetect::SmFilterDetect( const REFERENCE < ::com::sun::star::lang::XMultiServiceFactory >& /*xFactory*/ )
89 {
90 }
91 
92 SmFilterDetect::~SmFilterDetect()
93 {
94 }
95 
96 ::rtl::OUString SAL_CALL SmFilterDetect::detect( ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& lDescriptor ) throw( ::com::sun::star::uno::RuntimeException )
97 {
98     REFERENCE< XInputStream > xStream;
99     REFERENCE< XContent > xContent;
100     REFERENCE< XInteractionHandler > xInteraction;
101     String aURL;
102 	::rtl::OUString sTemp;
103     String aTypeName;            // a name describing the type (from MediaDescriptor, usually from flat detection)
104     String aPreselectedFilterName;      // a name describing the filter to use (from MediaDescriptor, usually from UI action)
105 
106 	::rtl::OUString aDocumentTitle; // interesting only if set in this method
107 
108 	// opening as template is done when a parameter tells to do so and a template filter can be detected
109     // (otherwise no valid filter would be found) or if the detected filter is a template filter and
110 	// there is no parameter that forbids to open as template
111 	sal_Bool bOpenAsTemplate = sal_False;
112     sal_Bool bWasReadOnly = sal_False, bReadOnly = sal_False;
113 
114 	sal_Bool bRepairPackage = sal_False;
115 	sal_Bool bRepairAllowed = sal_False;
116 
117 	// now some parameters that can already be in the array, but may be overwritten or new inserted here
118 	// remember their indices in the case new values must be added to the array
119 	sal_Int32 nPropertyCount = lDescriptor.getLength();
120     sal_Int32 nIndexOfFilterName = -1;
121     sal_Int32 nIndexOfInputStream = -1;
122     sal_Int32 nIndexOfContent = -1;
123     sal_Int32 nIndexOfReadOnlyFlag = -1;
124     sal_Int32 nIndexOfTemplateFlag = -1;
125     sal_Int32 nIndexOfDocumentTitle = -1;
126 
127     for( sal_Int32 nProperty=0; nProperty<nPropertyCount; ++nProperty )
128 	{
129         // extract properties
130         if( lDescriptor[nProperty].Name == OUString(RTL_CONSTASCII_USTRINGPARAM("URL")) )
131 		{
132 			lDescriptor[nProperty].Value >>= sTemp;
133 			aURL = sTemp;
134 		}
135         else if( !aURL.Len() && lDescriptor[nProperty].Name == OUString(RTL_CONSTASCII_USTRINGPARAM("FileName")) )
136 		{
137 			lDescriptor[nProperty].Value >>= sTemp;
138 			aURL = sTemp;
139 		}
140         else if( lDescriptor[nProperty].Name == OUString(RTL_CONSTASCII_USTRINGPARAM("TypeName")) )
141 		{
142 			lDescriptor[nProperty].Value >>= sTemp;
143             aTypeName = sTemp;
144 		}
145         else if( lDescriptor[nProperty].Name == OUString(RTL_CONSTASCII_USTRINGPARAM("FilterName")) )
146 		{
147 			lDescriptor[nProperty].Value >>= sTemp;
148             aPreselectedFilterName = sTemp;
149 
150             // if the preselected filter name is not correct, it must be erased after detection
151             // remember index of property to get access to it later
152             nIndexOfFilterName = nProperty;
153 		}
154         else if( lDescriptor[nProperty].Name == OUString(RTL_CONSTASCII_USTRINGPARAM("InputStream")) )
155             nIndexOfInputStream = nProperty;
156         else if( lDescriptor[nProperty].Name == OUString(RTL_CONSTASCII_USTRINGPARAM("ReadOnly")) )
157             nIndexOfReadOnlyFlag = nProperty;
158         else if( lDescriptor[nProperty].Name == OUString(RTL_CONSTASCII_USTRINGPARAM("UCBContent")) )
159             nIndexOfContent = nProperty;
160         else if( lDescriptor[nProperty].Name == OUString(RTL_CONSTASCII_USTRINGPARAM("AsTemplate")) )
161 		{
162 			lDescriptor[nProperty].Value >>= bOpenAsTemplate;
163             nIndexOfTemplateFlag = nProperty;
164 		}
165         else if( lDescriptor[nProperty].Name == OUString(RTL_CONSTASCII_USTRINGPARAM("InteractionHandler")) )
166             lDescriptor[nProperty].Value >>= xInteraction;
167         else if( lDescriptor[nProperty].Name == OUString(RTL_CONSTASCII_USTRINGPARAM("RepairPackage")) )
168             lDescriptor[nProperty].Value >>= bRepairPackage;
169         else if( lDescriptor[nProperty].Name == OUString(RTL_CONSTASCII_USTRINGPARAM("DocumentTitle")) )
170             nIndexOfDocumentTitle = nProperty;
171 	}
172 
173     // can't check the type for external filters, so set the "dont" flag accordingly
174     ::vos::OGuard aGuard( Application::GetSolarMutex() );
175     //SfxFilterFlags nMust = SFX_FILTER_IMPORT, nDont = SFX_FILTER_NOTINSTALLED;
176 
177     SfxApplication* pApp = SFX_APP();
178     SfxAllItemSet *pSet = new SfxAllItemSet( pApp->GetPool() );
179     TransformParameters( SID_OPENDOC, lDescriptor, *pSet );
180     SFX_ITEMSET_ARG( pSet, pItem, SfxBoolItem, SID_DOC_READONLY, sal_False );
181 
182     bWasReadOnly = pItem && pItem->GetValue();
183 
184 	String aFilterName;
185 	String aPrefix = String::CreateFromAscii( "private:factory/" );
186 	if( aURL.Match( aPrefix ) == aPrefix.Len() )
187 	{
188 		const SfxFilter* pFilter = 0;
189 		String aPattern( aPrefix );
190 		aPattern += String::CreateFromAscii("smath");
191 		if ( aURL.Match( aPattern ) >= aPattern.Len() )
192 		{
193 			pFilter = SfxFilter::GetDefaultFilterFromFactory( aURL );
194 			aTypeName = pFilter->GetTypeName();
195 			aFilterName = pFilter->GetName();
196 		}
197 	}
198 	else
199 	{
200 	    // ctor of SfxMedium uses owner transition of ItemSet
201 	    SfxMedium aMedium( aURL, bWasReadOnly ? STREAM_STD_READ : STREAM_STD_READWRITE, sal_False, NULL, pSet );
202 	    aMedium.UseInteractionHandler( sal_True );
203 
204 	    sal_Bool bIsStorage = aMedium.IsStorage();
205 	    if ( aMedium.GetErrorCode() == ERRCODE_NONE )
206 	    {
207 	        // remember input stream and content and put them into the descriptor later
208 			// should be done here since later the medium can switch to a version
209 	        xStream = aMedium.GetInputStream();
210 			xContent = aMedium.GetContent();
211         	bReadOnly = aMedium.IsReadOnly();
212 
213 	        if ( bIsStorage )
214 			{
215                 //TODO/LATER: factor this out!
216                 uno::Reference < embed::XStorage > xStorage = aMedium.GetStorage( sal_False );
217 				if ( aMedium.GetLastStorageCreationState() != ERRCODE_NONE )
218 				{
219 					// error during storage creation means _here_ that the medium
220 					// is broken, but we can not handle it in medium since unpossibility
221 					// to create a storage does not _always_ means that the medium is broken
222 					aMedium.SetError( aMedium.GetLastStorageCreationState(), ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( OSL_LOG_PREFIX ) ) );
223 					if ( xInteraction.is() )
224 					{
225 						OUString empty;
226 						try
227 						{
228 							InteractiveAppException xException( empty,
229 															REFERENCE< XInterface >(),
230 															InteractionClassification_ERROR,
231 															aMedium.GetError() );
232 
233 							REFERENCE< XInteractionRequest > xRequest(
234 								new ucbhelper::SimpleInteractionRequest( makeAny( xException ),
235 																 	 ucbhelper::CONTINUATION_APPROVE ) );
236 							xInteraction->handle( xRequest );
237 						}
238 						catch ( Exception & ) {};
239 					}
240 				}
241 				else
242 				{
243                     aFilterName.Erase();
244 
245 					try
246 					{
247                         const SfxFilter* pFilter = aPreselectedFilterName.Len() ?
248                                 SfxFilterMatcher().GetFilter4FilterName( aPreselectedFilterName ) : aTypeName.Len() ?
249                                 SfxFilterMatcher(String::CreateFromAscii("smath")).GetFilter4EA( aTypeName ) : 0;
250                         String aTmpFilterName;
251                         if ( pFilter )
252                             aTmpFilterName = pFilter->GetName();
253                         aTypeName = SfxFilter::GetTypeFromStorage( xStorage, pFilter ? pFilter->IsAllowedAsTemplate() : sal_False, &aTmpFilterName );
254 					}
255 					catch( lang::WrappedTargetException& aWrap )
256 					{
257 						packages::zip::ZipIOException aZipException;
258 
259 						// repairing is done only if this type is requested from outside
260 						if ( ( aWrap.TargetException >>= aZipException ) && aTypeName.Len() )
261 						{
262 							if ( xInteraction.is() )
263 							{
264 								// the package is broken one
265        							aDocumentTitle = aMedium.GetURLObject().getName(
266 															INetURLObject::LAST_SEGMENT,
267 															true,
268 															INetURLObject::DECODE_WITH_CHARSET );
269 
270 								if ( !bRepairPackage )
271 								{
272 									// ask the user whether he wants to try to repair
273                                     RequestPackageReparation aRequest( aDocumentTitle );
274                                     xInteraction->handle( aRequest.GetRequest() );
275                                     bRepairAllowed = aRequest.isApproved();
276 								}
277 
278 								if ( !bRepairAllowed )
279 								{
280 									// repair either not allowed or not successful
281                                     NotifyBrokenPackage aNotifyRequest( aDocumentTitle );
282                                     xInteraction->handle( aNotifyRequest.GetRequest() );
283 								}
284 							}
285 
286 							if ( !bRepairAllowed )
287 								aTypeName.Erase();
288 						}
289 					}
290 					catch( uno::RuntimeException& )
291 					{
292 						throw;
293 					}
294 					catch( uno::Exception& )
295 					{
296 						aTypeName.Erase();
297 					}
298 
299                    	if ( aTypeName.Len() )
300 					{
301                        	const SfxFilter* pFilter =
302 									SfxFilterMatcher( String::CreateFromAscii("smath") ).GetFilter4EA( aTypeName );
303 						if ( pFilter )
304 							aFilterName = pFilter->GetName();
305 					}
306 				}
307 			}
308 			else
309 			{
310 				//Test to see if this begins with xml and if so run it through
311 				//the MathML filter. There are all sorts of things wrong with
312 				//this approach, to be fixed at a better level than here
313 				SvStream *pStrm = aMedium.GetInStream();
314                 aTypeName.Erase();
315 				if (pStrm && !pStrm->GetError())
316 				{
317                     SotStorageRef aStorage = new SotStorage ( pStrm, sal_False );
318                     if ( !aStorage->GetError() )
319                     {
320                         if ( aStorage->IsStream( String::CreateFromAscii( RTL_CONSTASCII_STRINGPARAM( "Equation Native" ) ) ) )
321                         {
322                             sal_uInt8 nVersion;
323                             if (GetMathTypeVersion( aStorage, nVersion ) && nVersion <=3)
324                                 aTypeName.AssignAscii( "math_MathType_3x" );
325                         }
326                     }
327                     else
328                     {
329                         // #124636# detection should not only check for xml, but at least also for
330                         // the math start element and the MathML URL. Additionally take their order
331                         // into account. Also allow the case where the start element has a namespace
332                         // (e.g. <bla:math), but in that case ensure that it is in front of an evtl.
333                         // xmlns:math namespace declaration and thus not part of that
334                         const sal_uInt16 nReadSize(4095);
335                         sal_Char aBuffer[nReadSize+1];
336                         pStrm->Seek( STREAM_SEEK_TO_BEGIN );
337                         const sal_uLong nBytesRead(pStrm->Read( aBuffer, nReadSize ));
338 
339                         if(nBytesRead > (5 + 1 + 34 + 5)) // xml + '>' + URL + '(<|:)math'
340                         {
341                             // end string with null
342                             aBuffer[nBytesRead + 1] = 0;
343 
344                             // is it a xml file?
345                             const sal_Char* pXML = strstr(aBuffer, "<?xml");
346                             bool isMathFile(false);
347 
348                             if(pXML)
349                             {
350                                 // does it have the MathML URL?
351                                 const sal_Char* pURL = strstr(aBuffer, "http://www.w3.org/1998/Math/MathML");
352 
353                                 // URL has to be after XML start
354                                 if(pURL && pURL > pXML)
355                                 {
356                                     // look if we have a direct math start element
357                                     sal_Char* pMathStart = strstr(aBuffer, "<math");
358 
359                                     if(!pMathStart)
360                                     {
361                                         // if not, look if we have a math start element in another namespace
362                                         pMathStart = strstr(aBuffer, ":math");
363 
364                                         if(pMathStart)
365                                         {
366                                             // if found, this has to be in front of the evtl. also existing namespace
367                                             // declaration also containing :math to be the start element
368                                             sal_Char* pNamespaceMath = strstr(aBuffer, "xmlns:math");
369 
370                                             if(pNamespaceMath && pMathStart > pNamespaceMath)
371                                             {
372                                                 // invalid :math found (probably part of the namespace declaration)
373                                                 // -> this cannot be the math start element
374                                                 pMathStart = 0;
375                                             }
376                                         }
377                                     }
378 
379                                     // MathStart has to be before the URL
380                                     if(pMathStart && pMathStart < pURL)
381                                     {
382                                         isMathFile = true;
383                                     }
384                                 }
385                             }
386 
387                             if(isMathFile)
388                             {
389                                 static const sal_Char sFltrNm_2[] = MATHML_XML;
390                                 static const sal_Char sTypeNm_2[] = "math_MathML_XML_Math";
391 
392                                 aFilterName.AssignAscii( sFltrNm_2 );
393                                 aTypeName.AssignAscii( sTypeNm_2 );
394                             }
395                         }
396                     }
397 
398                     if ( aTypeName.Len() )
399                     {
400                         const SfxFilter* pFilt = SfxFilterMatcher( String::CreateFromAscii("smath") ).GetFilter4EA( aTypeName );
401                         if ( pFilt )
402                             aFilterName = pFilt->GetName();
403                     }
404 				}
405 			}
406 		}
407 	}
408 
409     if ( nIndexOfInputStream == -1 && xStream.is() )
410     {
411         // if input stream wasn't part of the descriptor, now it should be, otherwise the content would be opend twice
412         lDescriptor.realloc( nPropertyCount + 1 );
413         lDescriptor[nPropertyCount].Name = ::rtl::OUString::createFromAscii("InputStream");
414         lDescriptor[nPropertyCount].Value <<= xStream;
415         nPropertyCount++;
416     }
417 
418     if ( nIndexOfContent == -1 && xContent.is() )
419     {
420         // if input stream wasn't part of the descriptor, now it should be, otherwise the content would be opend twice
421         lDescriptor.realloc( nPropertyCount + 1 );
422         lDescriptor[nPropertyCount].Name = ::rtl::OUString::createFromAscii("UCBContent");
423         lDescriptor[nPropertyCount].Value <<= xContent;
424         nPropertyCount++;
425     }
426 
427     if ( bReadOnly != bWasReadOnly )
428     {
429         if ( nIndexOfReadOnlyFlag == -1 )
430         {
431             lDescriptor.realloc( nPropertyCount + 1 );
432             lDescriptor[nPropertyCount].Name = ::rtl::OUString::createFromAscii("ReadOnly");
433             lDescriptor[nPropertyCount].Value <<= bReadOnly;
434             nPropertyCount++;
435         }
436         else
437             lDescriptor[nIndexOfReadOnlyFlag].Value <<= bReadOnly;
438     }
439 
440 	if ( !bRepairPackage && bRepairAllowed )
441 	{
442         lDescriptor.realloc( nPropertyCount + 1 );
443         lDescriptor[nPropertyCount].Name = ::rtl::OUString::createFromAscii("RepairPackage");
444         lDescriptor[nPropertyCount].Value <<= bRepairAllowed;
445         nPropertyCount++;
446 
447 		bOpenAsTemplate = sal_True;
448 
449 		// TODO/LATER: set progress bar that should be used
450 	}
451 
452 	if ( bOpenAsTemplate )
453 	{
454 		if ( nIndexOfTemplateFlag == -1 )
455 		{
456         	lDescriptor.realloc( nPropertyCount + 1 );
457         	lDescriptor[nPropertyCount].Name = ::rtl::OUString::createFromAscii("AsTemplate");
458         	lDescriptor[nPropertyCount].Value <<= bOpenAsTemplate;
459         	nPropertyCount++;
460 		}
461 		else
462         	lDescriptor[nIndexOfTemplateFlag].Value <<= bOpenAsTemplate;
463 	}
464 
465 	if ( aDocumentTitle.getLength() )
466 	{
467 		// the title was set here
468 		if ( nIndexOfDocumentTitle == -1 )
469 		{
470         	lDescriptor.realloc( nPropertyCount + 1 );
471         	lDescriptor[nPropertyCount].Name = ::rtl::OUString::createFromAscii("DocumentTitle");
472         	lDescriptor[nPropertyCount].Value <<= aDocumentTitle;
473         	nPropertyCount++;
474 		}
475 		else
476         	lDescriptor[nIndexOfDocumentTitle].Value <<= aDocumentTitle;
477 	}
478 
479     if ( !aFilterName.Len() )
480         aTypeName.Erase();
481 
482     return aTypeName;
483 }
484 
485 SFX_IMPL_SINGLEFACTORY( SmFilterDetect )
486 
487 /* XServiceInfo */
488 UNOOUSTRING SAL_CALL SmFilterDetect::getImplementationName() throw( UNORUNTIMEEXCEPTION )
489 {
490     return impl_getStaticImplementationName();
491 }
492                                                                                                                                 \
493 /* XServiceInfo */
494 sal_Bool SAL_CALL SmFilterDetect::supportsService( const UNOOUSTRING& sServiceName ) throw( UNORUNTIMEEXCEPTION )
495 {
496     UNOSEQUENCE< UNOOUSTRING >  seqServiceNames =   getSupportedServiceNames();
497     const UNOOUSTRING*          pArray          =   seqServiceNames.getConstArray();
498     for ( sal_Int32 nCounter=0; nCounter<seqServiceNames.getLength(); nCounter++ )
499     {
500         if ( pArray[nCounter] == sServiceName )
501         {
502             return sal_True ;
503         }
504     }
505     return sal_False ;
506 }
507 
508 /* XServiceInfo */
509 UNOSEQUENCE< UNOOUSTRING > SAL_CALL SmFilterDetect::getSupportedServiceNames() throw( UNORUNTIMEEXCEPTION )
510 {
511     return impl_getStaticSupportedServiceNames();
512 }
513 
514 /* Helper for XServiceInfo */
515 UNOSEQUENCE< UNOOUSTRING > SmFilterDetect::impl_getStaticSupportedServiceNames()
516 {
517     UNOMUTEXGUARD aGuard( UNOMUTEX::getGlobalMutex() );
518     UNOSEQUENCE< UNOOUSTRING > seqServiceNames( 1 );
519     seqServiceNames.getArray() [0] = UNOOUSTRING::createFromAscii( "com.sun.star.frame.ExtendedTypeDetection"  );
520     return seqServiceNames ;
521 }
522 
523 /* Helper for XServiceInfo */
524 UNOOUSTRING SmFilterDetect::impl_getStaticImplementationName()
525 {
526     return UNOOUSTRING::createFromAscii( "com.sun.star.comp.math.FormatDetector" );
527 }
528 
529 /* Helper for registry */
530 UNOREFERENCE< UNOXINTERFACE > SAL_CALL SmFilterDetect::impl_createInstance( const UNOREFERENCE< UNOXMULTISERVICEFACTORY >& xServiceManager ) throw( UNOEXCEPTION )
531 {
532     return UNOREFERENCE< UNOXINTERFACE >( *new SmFilterDetect( xServiceManager ) );
533 }
534 
535