sc/source/ui/unoobj/scdetect.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 "scdetect.hxx"
  21
  22 #include <sal/macros.h>
  23
  24 #include <framework/interaction.hxx>
  25 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
  26 #include <com/sun/star/beans/PropertyValue.hpp>
  27 #include <com/sun/star/frame/XFrame.hpp>
  28 #include <com/sun/star/frame/XModel.hpp>
  29 #include <com/sun/star/awt/XWindow.hpp>
  30 #include <com/sun/star/lang/XUnoTunnel.hpp>
  31 #include <comphelper/processfactory.hxx>
  32 #include <comphelper/string.hxx>
  33 #include <com/sun/star/container/XNameAccess.hpp>
  34 #include <com/sun/star/io/XInputStream.hpp>
  35 #include <com/sun/star/task/XInteractionHandler.hpp>
  36 #include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
  37 #include <com/sun/star/ucb/CommandAbortedException.hpp>
  38 #include <com/sun/star/ucb/InteractiveAppException.hpp>
  39 #include <com/sun/star/ucb/XContent.hpp>
  40 #include <com/sun/star/packages/zip/ZipIOException.hpp>
  41
  42 #include <toolkit/helper/vclunohelper.hxx>
  43 #include <ucbhelper/simpleinteractionrequest.hxx>
  44
  45 #include <svtools/parhtml.hxx>
  46 #include <rtl/ustring.h>
  47 #include <svl/itemset.hxx>
  48 #include <vcl/window.hxx>
  49 #include <svl/eitem.hxx>
  50 #include <svl/stritem.hxx>
  51 #include <tools/urlobj.hxx>
  52 #include <osl/mutex.hxx>
  53 #include <svtools/sfxecode.hxx>
  54 #include <svtools/ehdl.hxx>
  55 #include <sot/storinfo.hxx>
  56 #include <vcl/svapp.hxx>
  57 #include <sfx2/sfxsids.hrc>
  58 #include <sfx2/request.hxx>
  59 #include <sfx2/docfile.hxx>
  60 #include <sfx2/docfilt.hxx>
  61 #include <sfx2/fcontnr.hxx>
  62 #include <sfx2/app.hxx>
  63 #include <sfx2/brokenpackageint.hxx>
  64
  65 using namespace ::com::sun::star;
  66 using namespace ::com::sun::star::uno;
  67 using namespace ::com::sun::star::io;
  68 using namespace ::com::sun::star::frame;
  69 using namespace ::com::sun::star::task;
  70 using namespace ::com::sun::star::beans;
  71 using namespace ::com::sun::star::lang;
  72 using namespace ::com::sun::star::ucb;
  73
  74 namespace {
  75
  76 const sal_Char pFilterLotus[]        = "Lotus";
  77 const sal_Char pFilterQPro6[]        = "Quattro Pro 6.0";
  78 const sal_Char pFilterDBase[]        = "dBase";
  79 const sal_Char pFilterDif[]      = "DIF";
  80 const sal_Char pFilterSylk[]     = "SYLK";
  81
  82 // Tabelle mit Suchmustern
  83 // Bedeutung der Sequenzen
  84 // 0x00??: genau Byte 0x?? muss an dieser Stelle stehen
  85 // 0x0100: ein Byte ueberlesen (don't care)
  86 // 0x02nn: ein Byte aus 0xnn Alternativen folgt
  87 // 0x8000: Erkennung abgeschlossen
  88 //
  89
  90 #define M_DC        0x0100
  91 #define M_ALT(ANZ)  (0x0200+(ANZ))
  92 #define M_ENDE      0x8000
  93
  94 const sal_uInt16 pLotus[] =      // Lotus 1/1A/2
  95     { 0x0000, 0x0000, 0x0002, 0x0000,
  96     M_ALT(2), 0x0004, 0x0006,
  97     0x0004, M_ENDE };
  98
  99 const sal_uInt16 pLotusNew[] =   // Lotus >= 9.7
 100     { 0x0000, 0x0000, M_DC, 0x0000,     // Rec# + Len (0x1a)
 101       M_ALT(3), 0x0003, 0x0004, 0x0005, // File Revision Code 97->ME
 102       0x0010, 0x0004, 0x0000, 0x0000,
 103       M_ENDE };
 104
 105 const sal_uInt16 pLotus2[] =     // Lotus >3
 106     { 0x0000, 0x0000, 0x001A, 0x0000,   // Rec# + Len (26)
 107     M_ALT(2), 0x0000, 0x0002,         // File Revision Code
 108     0x0010,
 109     0x0004, 0x0000,                   // File Revision Subcode
 110     M_ENDE };
 111
 112 const sal_uInt16 pQPro[] =
 113        { 0x0000, 0x0000, 0x0002, 0x0000,
 114          M_ALT(4), 0x0001, 0x0002, // WB1, WB2
 115          0x0006, 0x0007,           // QPro 6/7 (?)
 116          0x0010,
 117          M_ENDE };
 118
 119 const sal_uInt16 pDIF1[] =       // DIF mit CR-LF
 120     {
 121     'T', 'A', 'B', 'L', 'E',
 122     M_DC, M_DC,
 123     '0', ',', '1',
 124     M_DC, M_DC,
 125     '\"',
 126     M_ENDE };
 127
 128 const sal_uInt16 pDIF2[] =       // DIF mit CR oder LF
 129     {
 130     'T', 'A', 'B', 'L', 'E',
 131     M_DC,
 132     '0', ',', '1',
 133     M_DC,
 134     '\"',
 135     M_ENDE };
 136
 137 const sal_uInt16 pSylk[] =       // Sylk
 138     {
 139     'I', 'D', ';',
 140     M_ALT(3), 'P', 'N', 'E',        // 'P' plus undocumented Excel extensions 'N' and 'E'
 141     M_ENDE };
 142
 143 bool detectThisFormat(SvStream& rStr, const sal_uInt16* pSearch)
 144 {
 145     sal_uInt8 nByte;
 146     rStr.Seek( 0 ); // am Anfang war alles Uebel...
 147     rStr >> nByte;
 148     bool bSync = true;
 149     while( !rStr.IsEof() && bSync )
 150     {
 151         sal_uInt16 nMuster = *pSearch;
 152
 153         if( nMuster < 0x0100 )
 154         { //                                direkter Byte-Vergleich
 155             if( ( sal_uInt8 ) nMuster != nByte )
 156                 bSync = false;
 157         }
 158         else if( nMuster & M_DC )
 159         { //                                             don't care
 160         }
 161         else if( nMuster & M_ALT(0) )
 162         { //                                      alternative Bytes
 163             sal_uInt8 nAnzAlt = ( sal_uInt8 ) nMuster;
 164             bSync = false;          // zunaechst unsynchron
 165             while( nAnzAlt > 0 )
 166             {
 167                 pSearch++;
 168                 if( ( sal_uInt8 ) *pSearch == nByte )
 169                     bSync = true;   // jetzt erst Synchronisierung
 170                 nAnzAlt--;
 171             }
 172         }
 173         else if( nMuster & M_ENDE )
 174         { //                                        Format detected
 175             return true;
 176         }
 177
 178         pSearch++;
 179         rStr >> nByte;
 180     }
 181
 182     return false;
 183 }
 184
 185 }
 186
 187 ScFilterDetect::ScFilterDetect( const uno::Reference<uno::XComponentContext>& /*xContext*/ )
 188 {
 189 }
 190
 191 ScFilterDetect::~ScFilterDetect()
 192 {
 193 }
 194
 195 #if 0
 196 // This method is no longer used, but I do want to keep this for now to see
 197 // if we could transfer this check to the now centralized ascii detection
 198 // code in the filter module.
 199 static sal_Bool lcl_MayBeAscii( SvStream& rStream )
 200 {
 201     // ASCII/CSV is considered possible if there are no null bytes, or a Byte
 202     // Order Mark is present, or if, for Unicode UCS2/UTF-16, all null bytes
 203     // are on either even or uneven byte positions.
 204
 205     rStream.Seek(STREAM_SEEK_TO_BEGIN);
 206
 207     const size_t nBufSize = 2048;
 208     sal_uInt16 aBuffer[ nBufSize ];
 209     sal_uInt8* pByte = reinterpret_cast<sal_uInt8*>(aBuffer);
 210     sal_uLong nBytesRead = rStream.Read( pByte, nBufSize*2);
 211
 212     if ( nBytesRead >= 2 && (aBuffer[0] == 0xfffe || aBuffer[0] == 0xfeff) )
 213     {
 214         // Unicode BOM file may contain null bytes.
 215         return sal_True;
 216     }
 217
 218     const sal_uInt16* p = aBuffer;
 219     sal_uInt16 nMask = 0xffff;
 220     nBytesRead /= 2;
 221     while( nBytesRead-- && nMask )
 222     {
 223         sal_uInt16 nVal = *p++ & nMask;
 224         if (!(nVal & 0x00ff))
 225             nMask &= 0xff00;
 226         if (!(nVal & 0xff00))
 227             nMask &= 0x00ff;
 228     }
 229
 230     return nMask != 0;
 231 }
 232 #endif
 233
 234 static sal_Bool lcl_MayBeDBase( SvStream& rStream )
 235 {
 236     // Look for dbf marker, see connectivity/source/inc/dbase/DTable.hxx
 237     // DBFType for values.
 238     const sal_uInt8 nValidMarks[] = {
 239         0x03, 0x04, 0x05, 0x30, 0x43, 0xB3, 0x83, 0x8b, 0x8e, 0xf5 };
 240     sal_uInt8 nMark;
 241     rStream.Seek(STREAM_SEEK_TO_BEGIN);
 242     rStream >> nMark;
 243     bool bValidMark = false;
 244     for (size_t i=0; i < sizeof(nValidMarks)/sizeof(nValidMarks[0]) && !bValidMark; ++i)
 245     {
 246         if (nValidMarks[i] == nMark)
 247             bValidMark = true;
 248     }
 249     if ( !bValidMark )
 250         return false;
 251
 252     const size_t nHeaderBlockSize = 32;
 253     // Empty dbf is >= 32*2+1 bytes in size.
 254     const size_t nEmptyDbf = nHeaderBlockSize * 2 + 1;
 255
 256     rStream.Seek(STREAM_SEEK_TO_END);
 257     sal_uLong nSize = rStream.Tell();
 258     if ( nSize < nEmptyDbf )
 259         return false;
 260
 261     // length of header starts at 8
 262     rStream.Seek(8);
 263     sal_uInt16 nHeaderLen;
 264     rStream >> nHeaderLen;
 265
 266     if ( nHeaderLen < nEmptyDbf || nSize < nHeaderLen )
 267         return false;
 268
 269     // Last byte of header must be 0x0d, this is how it's specified.
 270     // #i9581#,#i26407# but some applications don't follow the specification
 271     // and pad the header with one byte 0x00 to reach an
 272     // even boundary. Some (#i88577# ) even pad more or pad using a 0x1a ^Z
 273     // control character (#i8857#). This results in:
 274     // Last byte of header must be 0x0d on 32 bytes boundary.
 275     sal_uInt16 nBlocks = (nHeaderLen - 1) / nHeaderBlockSize;
 276     sal_uInt8 nEndFlag = 0;
 277     while ( nBlocks > 1 && nEndFlag != 0x0d ) {
 278         rStream.Seek( nBlocks-- * nHeaderBlockSize );
 279         rStream >> nEndFlag;
 280     }
 281
 282     return ( 0x0d == nEndFlag );
 283 }
 284
 285 OUString SAL_CALL ScFilterDetect::detect( uno::Sequence<beans::PropertyValue>& lDescriptor )
 286     throw( uno::RuntimeException )
 287 {
 288     uno::Reference< XInputStream > xStream;
 289     uno::Reference< XContent > xContent;
 290     uno::Reference< XInteractionHandler > xInteraction;
 291     String aURL;
 292     OUString sTemp;
 293     String aTypeName;            // a name describing the type (from MediaDescriptor, usually from flat detection)
 294     String aPreselectedFilterName;      // a name describing the filter to use (from MediaDescriptor, usually from UI action)
 295
 296     OUString aDocumentTitle; // interesting only if set in this method
 297
 298     // opening as template is done when a parameter tells to do so and a template filter can be detected
 299     // (otherwise no valid filter would be found) or if the detected filter is a template filter and
 300     // there is no parameter that forbids to open as template
 301     sal_Bool bOpenAsTemplate = false;
 302     sal_Bool bWasReadOnly = false, bReadOnly = false;
 303
 304     sal_Bool bRepairPackage = false;
 305     sal_Bool bRepairAllowed = false;
 306     bool bDeepDetection = false;
 307
 308     // now some parameters that can already be in the array, but may be overwritten or new inserted here
 309     // remember their indices in the case new values must be added to the array
 310     sal_Int32 nPropertyCount = lDescriptor.getLength();
 311     sal_Int32 nIndexOfFilterName = -1;
 312     sal_Int32 nIndexOfInputStream = -1;
 313     sal_Int32 nIndexOfContent = -1;
 314     sal_Int32 nIndexOfReadOnlyFlag = -1;
 315     sal_Int32 nIndexOfTemplateFlag = -1;
 316     sal_Int32 nIndexOfDocumentTitle = -1;
 317
 318     for( sal_Int32 nProperty=0; nProperty<nPropertyCount; ++nProperty )
 319     {
 320         // extract properties
 321         if ( lDescriptor[nProperty].Name == "URL" )
 322         {
 323             lDescriptor[nProperty].Value >>= sTemp;
 324             aURL = sTemp;
 325         }
 326         else if( !aURL.Len() && lDescriptor[nProperty].Name.equalsAsciiL(RTL_CONSTASCII_STRINGPARAM("FileName")) )
 327         {
 328             lDescriptor[nProperty].Value >>= sTemp;
 329             aURL = sTemp;
 330         }
 331         else if ( lDescriptor[nProperty].Name == "TypeName" )
 332         {
 333             lDescriptor[nProperty].Value >>= sTemp;
 334             aTypeName = sTemp;
 335         }
 336         else if ( lDescriptor[nProperty].Name == "FilterName" )
 337         {
 338             lDescriptor[nProperty].Value >>= sTemp;
 339             aPreselectedFilterName = sTemp;
 340
 341             // if the preselected filter name is not correct, it must be erased after detection
 342             // remember index of property to get access to it later
 343             nIndexOfFilterName = nProperty;
 344         }
 345         else if ( lDescriptor[nProperty].Name == "InputStream" )
 346             nIndexOfInputStream = nProperty;
 347         else if ( lDescriptor[nProperty].Name == "ReadOnly" )
 348             nIndexOfReadOnlyFlag = nProperty;
 349         else if ( lDescriptor[nProperty].Name == "UCBContent" )
 350             nIndexOfContent = nProperty;
 351         else if ( lDescriptor[nProperty].Name == "AsTemplate" )
 352         {
 353             lDescriptor[nProperty].Value >>= bOpenAsTemplate;
 354             nIndexOfTemplateFlag = nProperty;
 355         }
 356         else if ( lDescriptor[nProperty].Name == "InteractionHandler" )
 357             lDescriptor[nProperty].Value >>= xInteraction;
 358         else if ( lDescriptor[nProperty].Name == "RepairPackage" )
 359             lDescriptor[nProperty].Value >>= bRepairPackage;
 360         else if ( lDescriptor[nProperty].Name == "DocumentTitle" )
 361             nIndexOfDocumentTitle = nProperty;
 362         else if (lDescriptor[nProperty].Name == "DeepDetection")
 363             bDeepDetection = lDescriptor[nProperty].Value.get<sal_Bool>();
 364     }
 365
 366     // can't check the type for external filters, so set the "dont" flag accordingly
 367     SolarMutexGuard aGuard;
 368     //SfxFilterFlags nMust = SFX_FILTER_IMPORT, nDont = SFX_FILTER_NOTINSTALLED;
 369
 370     SfxAllItemSet *pSet = new SfxAllItemSet( SFX_APP()->GetPool() );
 371     TransformParameters( SID_OPENDOC, lDescriptor, *pSet );
 372     SFX_ITEMSET_ARG( pSet, pItem, SfxBoolItem, SID_DOC_READONLY, false );
 373
 374     bWasReadOnly = pItem && pItem->GetValue();
 375
 376     const SfxFilter* pFilter = 0;
 377     String aPrefix = OUString( "private:factory/" );
 378     if( aURL.Match( aPrefix ) == aPrefix.Len() )
 379     {
 380         String aPattern( aPrefix );
 381         aPattern += OUString("scalc");
 382         if ( aURL.Match( aPattern ) >= aPattern.Len() )
 383             pFilter = SfxFilter::GetDefaultFilterFromFactory( aURL );
 384     }
 385     else
 386     {
 387         // container for Calc filters
 388         SfxFilterMatcher aMatcher("scalc");
 389         if ( aPreselectedFilterName.Len() )
 390             pFilter = SfxFilter::GetFilterByName( aPreselectedFilterName );
 391         else if( aTypeName.Len() )
 392             pFilter = aMatcher.GetFilter4EA( aTypeName );
 393
 394         // ctor of SfxMedium uses owner transition of ItemSet
 395         SfxMedium aMedium( aURL, bWasReadOnly ? STREAM_STD_READ : STREAM_STD_READWRITE, NULL, pSet );
 396         aMedium.UseInteractionHandler( sal_True );
 397
 398         sal_Bool bIsStorage = aMedium.IsStorage();
 399         if ( aMedium.GetErrorCode() == ERRCODE_NONE )
 400         {
 401             // remember input stream and content and put them into the descriptor later
 402             // should be done here since later the medium can switch to a version
 403             xStream.set(aMedium.GetInputStream());
 404             xContent.set(aMedium.GetContent());
 405             bReadOnly = aMedium.IsReadOnly();
 406
 407             // maybe that IsStorage() already created an error!
 408             if ( bIsStorage )
 409             {
 410                 uno::Reference < embed::XStorage > xStorage(aMedium.GetStorage( false ));
 411                 if ( aMedium.GetLastStorageCreationState() != ERRCODE_NONE )
 412                 {
 413                     // error during storage creation means _here_ that the medium
 414                     // is broken, but we can not handle it in medium since unpossibility
 415                     // to create a storage does not _always_ means that the medium is broken
 416                     aMedium.SetError(aMedium.GetLastStorageCreationState(), OUString(OSL_LOG_PREFIX));
 417                     if ( xInteraction.is() )
 418                     {
 419                         OUString empty;
 420                         try
 421                         {
 422                             InteractiveAppException xException( empty,
 423                                                             uno::Reference< XInterface >(),
 424                                                             InteractionClassification_ERROR,
 425                                                             aMedium.GetError() );
 426
 427                             uno::Reference< XInteractionRequest > xRequest(
 428                                 new ucbhelper::SimpleInteractionRequest( makeAny( xException ),
 429                                                                       ucbhelper::CONTINUATION_APPROVE ) );
 430                             xInteraction->handle( xRequest );
 431                         }
 432                         catch ( Exception & ) {};
 433                     }
 434                 }
 435                 else if ( xStorage.is() )
 436                 {
 437                     try
 438                     {
 439                         OUString aFilterName;
 440                         if ( pFilter )
 441                             aFilterName = pFilter->GetName();
 442                         aTypeName = SfxFilter::GetTypeFromStorage( xStorage, pFilter ? pFilter->IsOwnTemplateFormat() : false, &aFilterName );
 443                     }
 444                     catch( const lang::WrappedTargetException& aWrap )
 445                     {
 446                         if (!bDeepDetection)
 447                             // Bail out early unless it's a deep detection.
 448                             return OUString();
 449
 450                         packages::zip::ZipIOException aZipException;
 451
 452                         // repairing is done only if this type is requested from outside
 453                         if ( ( aWrap.TargetException >>= aZipException ) && aTypeName.Len() )
 454                         {
 455                             if ( xInteraction.is() )
 456                             {
 457                                 // the package is broken one
 458                                    aDocumentTitle = aMedium.GetURLObject().getName(
 459                                                             INetURLObject::LAST_SEGMENT,
 460                                                             true,
 461                                                             INetURLObject::DECODE_WITH_CHARSET );
 462
 463                                 if ( !bRepairPackage )
 464                                 {
 465                                     // ask the user whether he wants to try to repair
 466                                     RequestPackageReparation aRequest( aDocumentTitle );
 467                                     xInteraction->handle( aRequest.GetRequest() );
 468                                     bRepairAllowed = aRequest.isApproved();
 469                                 }
 470
 471                                 if ( !bRepairAllowed )
 472                                 {
 473                                     // repair either not allowed or not successful
 474                                     NotifyBrokenPackage aNotifyRequest( aDocumentTitle );
 475                                     xInteraction->handle( aNotifyRequest.GetRequest() );
 476                                 }
 477                             }
 478
 479                             if ( !bRepairAllowed )
 480                                 aTypeName.Erase();
 481                         }
 482                     }
 483                     catch( uno::RuntimeException& )
 484                     {
 485                         throw;
 486                     }
 487                     catch( uno::Exception& )
 488                     {
 489                         aTypeName.Erase();
 490                     }
 491
 492                     if ( aTypeName.Len() )
 493                         pFilter = SfxFilterMatcher("scalc").GetFilter4EA( aTypeName );
 494                 }
 495             }
 496             else
 497             {
 498                 // Non-storage format.
 499
 500                 if (aTypeName == "calc8_template" ||
 501                     aTypeName == "calc8" ||
 502                     aTypeName == "calc_StarOffice_XML_Calc" ||
 503                     aTypeName == "calc_StarOffice_XML_Calc_Template")
 504                     // These types require storage.  Bail out.
 505                     return OUString();
 506
 507                 SvStream* pStream = aMedium.GetInStream();
 508                 if (!pStream)
 509                     // No stream, no detection.
 510                     return OUString();
 511
 512                 pFilter = NULL;
 513
 514                 pStream->Seek( STREAM_SEEK_TO_END);
 515                 sal_Size nSize = pStream->Tell();
 516                 pStream->Seek( 0);
 517                 // Do not attempt to create an SotStorage on a
 518                 // 0-length stream as that would create the compound
 519                 // document header on the stream and effectively write to
 520                 // disk!
 521                 if (nSize > 0)
 522                 {
 523                     const char* pSearchFilterName = NULL;
 524                     if (aTypeName == "calc_Lotus")
 525                     {
 526                         if (!detectThisFormat(*pStream, pLotus) && !detectThisFormat(*pStream, pLotusNew) && !detectThisFormat(*pStream, pLotus2))
 527                             return OUString();
 528
 529                         pSearchFilterName = pFilterLotus;
 530                     }
 531                     else if (aTypeName == "calc_QPro")
 532                     {
 533                         if (!detectThisFormat(*pStream, pQPro))
 534                             return OUString();
 535
 536                         pSearchFilterName = pFilterQPro6;
 537                     }
 538                     else if (aTypeName == "calc_SYLK")
 539                     {
 540                         if (!detectThisFormat(*pStream, pSylk))
 541                             return OUString();
 542
 543                         pSearchFilterName = pFilterSylk;
 544                     }
 545                     else if (aTypeName == "calc_DIF")
 546                     {
 547                         if (!detectThisFormat(*pStream, pDIF1) && !detectThisFormat(*pStream, pDIF2))
 548                             return OUString();
 549
 550                         pSearchFilterName = pFilterDif;
 551                     }
 552                     else if (aTypeName == "calc_dBase")
 553                     {
 554                         if (!lcl_MayBeDBase(*pStream))
 555                             return OUString();
 556
 557                         pSearchFilterName = pFilterDBase;
 558                     }
 559
 560                     if (!pSearchFilterName)
 561                         return OUString();
 562
 563                     pFilter = aMatcher.GetFilter4FilterName(OUString::createFromAscii(pSearchFilterName));
 564                 }
 565             }
 566         }
 567     }
 568
 569     if ( nIndexOfInputStream == -1 && xStream.is() )
 570     {
 571         // if input stream wasn't part of the descriptor, now it should be, otherwise the content would be opend twice
 572         lDescriptor.realloc( nPropertyCount + 1 );
 573         lDescriptor[nPropertyCount].Name = "InputStream";
 574         lDescriptor[nPropertyCount].Value <<= xStream;
 575         nPropertyCount++;
 576     }
 577
 578     if ( nIndexOfContent == -1 && xContent.is() )
 579     {
 580         // if input stream wasn't part of the descriptor, now it should be, otherwise the content would be opend twice
 581         lDescriptor.realloc( nPropertyCount + 1 );
 582         lDescriptor[nPropertyCount].Name = "UCBContent";
 583         lDescriptor[nPropertyCount].Value <<= xContent;
 584         nPropertyCount++;
 585     }
 586
 587     if ( bReadOnly != bWasReadOnly )
 588     {
 589         if ( nIndexOfReadOnlyFlag == -1 )
 590         {
 591             lDescriptor.realloc( nPropertyCount + 1 );
 592             lDescriptor[nPropertyCount].Name = "ReadOnly";
 593             lDescriptor[nPropertyCount].Value <<= bReadOnly;
 594             nPropertyCount++;
 595         }
 596         else
 597             lDescriptor[nIndexOfReadOnlyFlag].Value <<= bReadOnly;
 598     }
 599
 600     if ( !bRepairPackage && bRepairAllowed )
 601     {
 602         lDescriptor.realloc( nPropertyCount + 1 );
 603         lDescriptor[nPropertyCount].Name = "RepairPackage";
 604         lDescriptor[nPropertyCount].Value <<= bRepairAllowed;
 605         nPropertyCount++;
 606
 607         bOpenAsTemplate = sal_True;
 608
 609         // TODO/LATER: set progress bar that should be used
 610     }
 611
 612     if ( bOpenAsTemplate )
 613     {
 614         if ( nIndexOfTemplateFlag == -1 )
 615         {
 616             lDescriptor.realloc( nPropertyCount + 1 );
 617             lDescriptor[nPropertyCount].Name = "AsTemplate";
 618             lDescriptor[nPropertyCount].Value <<= bOpenAsTemplate;
 619             nPropertyCount++;
 620         }
 621         else
 622             lDescriptor[nIndexOfTemplateFlag].Value <<= bOpenAsTemplate;
 623     }
 624
 625     if ( !aDocumentTitle.isEmpty() )
 626     {
 627         // the title was set here
 628         if ( nIndexOfDocumentTitle == -1 )
 629         {
 630             lDescriptor.realloc( nPropertyCount + 1 );
 631             lDescriptor[nPropertyCount].Name = "DocumentTitle";
 632             lDescriptor[nPropertyCount].Value <<= aDocumentTitle;
 633             nPropertyCount++;
 634         }
 635         else
 636             lDescriptor[nIndexOfDocumentTitle].Value <<= aDocumentTitle;
 637     }
 638
 639     if (!pFilter)
 640         return OUString();
 641
 642     if (nIndexOfFilterName == -1)
 643     {
 644         lDescriptor.realloc(nPropertyCount + 1);
 645         lDescriptor[nPropertyCount].Name = "FilterName";
 646         lDescriptor[nPropertyCount].Value <<= pFilter->GetName();
 647         ++nPropertyCount;
 648     }
 649     else
 650         lDescriptor[nIndexOfFilterName].Value <<= pFilter->GetName();
 651
 652     return aTypeName;
 653 }
 654
 655 OUString SAL_CALL ScFilterDetect::getImplementationName() throw (uno::RuntimeException)
 656 {
 657     return impl_getStaticImplementationName();
 658 }
 659
 660 sal_Bool ScFilterDetect::supportsService( const OUString& sServiceName )
 661     throw (uno::RuntimeException)
 662 {
 663     uno::Sequence<OUString> seqServiceNames(getSupportedServiceNames());
 664     const OUString* pArray = seqServiceNames.getConstArray();
 665     for ( sal_Int32 nCounter=0; nCounter<seqServiceNames.getLength(); nCounter++ )
 666     {
 667         if ( pArray[nCounter] == sServiceName )
 668         {
 669             return sal_True ;
 670         }
 671     }
 672     return false ;
 673 }
 674
 675 com::sun::star::uno::Sequence<OUString> ScFilterDetect::getSupportedServiceNames()
 676     throw (uno::RuntimeException)
 677 {
 678     return impl_getStaticSupportedServiceNames();
 679 }
 680
 681 uno::Sequence<OUString> ScFilterDetect::impl_getStaticSupportedServiceNames()
 682 {
 683     uno::Sequence<OUString> seqServiceNames(1);
 684     seqServiceNames.getArray()[0] = "com.sun.star.frame.ExtendedTypeDetection";
 685     return seqServiceNames;
 686 }
 687
 688 OUString ScFilterDetect::impl_getStaticImplementationName()
 689 {
 690     return OUString("com.sun.star.comp.calc.FormatDetector");
 691 }
 692
 693 uno::Reference<uno::XInterface> ScFilterDetect::impl_createInstance(
 694     const uno::Reference<uno::XComponentContext>& xContext ) throw (uno::Exception)
 695 {
 696     return static_cast<cppu::OWeakObject*>(new ScFilterDetect(xContext));
 697 }
 698
 699 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */