Line data Source code
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 :
21 : #include "filterdet.hxx"
22 : #include "inc/pdfparse.hxx"
23 :
24 : #include <osl/diagnose.h>
25 : #include <osl/file.h>
26 : #include <osl/thread.h>
27 : #include <rtl/digest.h>
28 : #include <rtl/ref.hxx>
29 : #include <com/sun/star/uno/RuntimeException.hpp>
30 : #include <com/sun/star/io/XInputStream.hpp>
31 : #include <com/sun/star/io/XStream.hpp>
32 : #include <com/sun/star/io/XSeekable.hpp>
33 : #include <com/sun/star/io/TempFile.hpp>
34 :
35 : #include <boost/scoped_ptr.hpp>
36 : #include <string.h>
37 :
38 : using namespace com::sun::star;
39 :
40 : namespace pdfi
41 : {
42 :
43 : // TODO(T3): locking/thread safety
44 :
45 : class FileEmitContext : public pdfparse::EmitContext
46 : {
47 : private:
48 : oslFileHandle m_aReadHandle;
49 : unsigned int m_nReadLen;
50 : uno::Reference< io::XStream > m_xContextStream;
51 : uno::Reference< io::XSeekable > m_xSeek;
52 : uno::Reference< io::XOutputStream > m_xOut;
53 :
54 : public:
55 : FileEmitContext( const OUString& rOrigFile,
56 : const uno::Reference< uno::XComponentContext >& xContext,
57 : const pdfparse::PDFContainer* pTop );
58 : virtual ~FileEmitContext();
59 :
60 : virtual bool write( const void* pBuf, unsigned int nLen ) SAL_OVERRIDE;
61 : virtual unsigned int getCurPos() SAL_OVERRIDE;
62 : virtual bool copyOrigBytes( unsigned int nOrigOffset, unsigned int nLen ) SAL_OVERRIDE;
63 : virtual unsigned int readOrigBytes( unsigned int nOrigOffset, unsigned int nLen, void* pBuf ) SAL_OVERRIDE;
64 :
65 0 : const uno::Reference< io::XStream >& getContextStream() const { return m_xContextStream; }
66 : };
67 :
68 0 : FileEmitContext::FileEmitContext( const OUString& rOrigFile,
69 : const uno::Reference< uno::XComponentContext >& xContext,
70 : const pdfparse::PDFContainer* pTop ) :
71 : pdfparse::EmitContext( pTop ),
72 : m_aReadHandle(NULL),
73 : m_nReadLen(0),
74 : m_xContextStream(),
75 : m_xSeek(),
76 0 : m_xOut()
77 : {
78 0 : m_xContextStream = uno::Reference< io::XStream >(
79 0 : io::TempFile::create(xContext), uno::UNO_QUERY_THROW );
80 0 : m_xOut = m_xContextStream->getOutputStream();
81 0 : m_xSeek = uno::Reference<io::XSeekable>(m_xOut, uno::UNO_QUERY_THROW );
82 :
83 0 : oslFileError aErr = osl_File_E_None;
84 0 : if( (aErr=osl_openFile( rOrigFile.pData,
85 : &m_aReadHandle,
86 0 : osl_File_OpenFlag_Read )) == osl_File_E_None )
87 : {
88 0 : if( (aErr=osl_setFilePos( m_aReadHandle,
89 : osl_Pos_End,
90 0 : 0 )) == osl_File_E_None )
91 : {
92 0 : sal_uInt64 nFileSize = 0;
93 0 : if( (aErr=osl_getFilePos( m_aReadHandle,
94 0 : &nFileSize )) == osl_File_E_None )
95 : {
96 0 : m_nReadLen = static_cast<unsigned int>(nFileSize);
97 : }
98 : }
99 0 : if( aErr != osl_File_E_None )
100 : {
101 0 : osl_closeFile( m_aReadHandle );
102 0 : m_aReadHandle = NULL;
103 : }
104 : }
105 0 : m_bDeflate = true;
106 0 : }
107 :
108 0 : FileEmitContext::~FileEmitContext()
109 : {
110 0 : if( m_aReadHandle )
111 0 : osl_closeFile( m_aReadHandle );
112 0 : }
113 :
114 0 : bool FileEmitContext::write( const void* pBuf, unsigned int nLen )
115 : {
116 0 : if( ! m_xOut.is() )
117 0 : return false;
118 :
119 0 : uno::Sequence< sal_Int8 > aSeq( nLen );
120 0 : memcpy( aSeq.getArray(), pBuf, nLen );
121 0 : m_xOut->writeBytes( aSeq );
122 0 : return true;
123 : }
124 :
125 0 : unsigned int FileEmitContext::getCurPos()
126 : {
127 0 : unsigned int nPos = 0;
128 0 : if( m_xSeek.is() )
129 : {
130 0 : nPos = static_cast<unsigned int>( m_xSeek->getPosition() );
131 : }
132 0 : return nPos;
133 : }
134 :
135 0 : bool FileEmitContext::copyOrigBytes( unsigned int nOrigOffset, unsigned int nLen )
136 : {
137 0 : if( nOrigOffset + nLen > m_nReadLen )
138 0 : return false;
139 :
140 0 : if( osl_setFilePos( m_aReadHandle, osl_Pos_Absolut, nOrigOffset ) != osl_File_E_None )
141 0 : return false;
142 :
143 0 : uno::Sequence< sal_Int8 > aSeq( nLen );
144 :
145 0 : sal_uInt64 nBytesRead = 0;
146 0 : if( osl_readFile( m_aReadHandle,
147 0 : aSeq.getArray(),
148 : nLen,
149 0 : &nBytesRead ) != osl_File_E_None
150 0 : || nBytesRead != static_cast<sal_uInt64>(nLen) )
151 : {
152 0 : return false;
153 : }
154 :
155 0 : m_xOut->writeBytes( aSeq );
156 0 : return true;
157 : }
158 :
159 0 : unsigned int FileEmitContext::readOrigBytes( unsigned int nOrigOffset, unsigned int nLen, void* pBuf )
160 : {
161 0 : if( nOrigOffset + nLen > m_nReadLen )
162 0 : return 0;
163 :
164 0 : if( osl_setFilePos( m_aReadHandle,
165 : osl_Pos_Absolut,
166 0 : nOrigOffset ) != osl_File_E_None )
167 : {
168 0 : return 0;
169 : }
170 :
171 0 : sal_uInt64 nBytesRead = 0;
172 0 : if( osl_readFile( m_aReadHandle,
173 : pBuf,
174 : nLen,
175 0 : &nBytesRead ) != osl_File_E_None )
176 : {
177 0 : return 0;
178 : }
179 0 : return static_cast<unsigned int>(nBytesRead);
180 : }
181 :
182 :
183 :
184 :
185 :
186 0 : PDFDetector::PDFDetector( const uno::Reference< uno::XComponentContext >& xContext) :
187 : PDFDetectorBase( m_aMutex ),
188 0 : m_xContext( xContext )
189 0 : {}
190 :
191 : // XExtendedFilterDetection
192 0 : OUString SAL_CALL PDFDetector::detect( uno::Sequence< beans::PropertyValue >& rFilterData ) throw( uno::RuntimeException, std::exception )
193 : {
194 0 : osl::MutexGuard const guard( m_aMutex );
195 0 : bool bSuccess = false;
196 :
197 : // get the InputStream carrying the PDF content
198 0 : uno::Reference< io::XInputStream > xInput;
199 0 : uno::Reference< io::XStream > xEmbedStream;
200 0 : OUString aOutFilterName, aOutTypeName;
201 0 : OUString aURL;
202 0 : OUString aPwd;
203 0 : const beans::PropertyValue* pAttribs = rFilterData.getConstArray();
204 0 : sal_Int32 nAttribs = rFilterData.getLength();
205 0 : sal_Int32 nFilterNamePos = -1;
206 0 : sal_Int32 nPwdPos = -1;
207 0 : for( sal_Int32 i = 0; i < nAttribs; i++ )
208 : {
209 : #if OSL_DEBUG_LEVEL > 1
210 : OUString aVal( "<no string>" );
211 : pAttribs[i].Value >>= aVal;
212 : OSL_TRACE( "doDetection: Attrib: %s = %s\n",
213 : OUStringToOString( pAttribs[i].Name, RTL_TEXTENCODING_UTF8 ).getStr(),
214 : OUStringToOString( aVal, RTL_TEXTENCODING_UTF8 ).getStr() );
215 : #endif
216 0 : if ( pAttribs[i].Name == "InputStream" )
217 0 : pAttribs[i].Value >>= xInput;
218 0 : else if ( pAttribs[i].Name == "URL" )
219 0 : pAttribs[i].Value >>= aURL;
220 0 : else if ( pAttribs[i].Name == "FilterName" )
221 0 : nFilterNamePos = i;
222 0 : else if ( pAttribs[i].Name == "Password" )
223 : {
224 0 : nPwdPos = i;
225 0 : pAttribs[i].Value >>= aPwd;
226 : }
227 : }
228 0 : if( xInput.is() )
229 : {
230 0 : uno::Reference< io::XSeekable > xSeek( xInput, uno::UNO_QUERY );
231 0 : if( xSeek.is() )
232 0 : xSeek->seek( 0 );
233 : // read the first 1024 byte (see PDF reference implementation note 12)
234 0 : const sal_Int32 nHeaderSize = 1024;
235 0 : uno::Sequence< sal_Int8 > aBuf( nHeaderSize );
236 0 : sal_uInt64 nBytes = 0;
237 0 : nBytes = xInput->readBytes( aBuf, nHeaderSize );
238 0 : if( nBytes > 5 )
239 : {
240 0 : const sal_Int8* pBytes = aBuf.getConstArray();
241 0 : for( unsigned int i = 0; i < nBytes-5; i++ )
242 : {
243 0 : if( pBytes[i] == '%' &&
244 0 : pBytes[i+1] == 'P' &&
245 0 : pBytes[i+2] == 'D' &&
246 0 : pBytes[i+3] == 'F' &&
247 0 : pBytes[i+4] == '-' )
248 : {
249 0 : bSuccess = true;
250 0 : break;
251 : }
252 : }
253 : }
254 :
255 : // check for hybrid PDF
256 0 : oslFileHandle aFile = NULL;
257 0 : if( bSuccess &&
258 0 : ( aURL.isEmpty() || !aURL.startsWith( "file:" ) )
259 : )
260 : {
261 0 : sal_uInt64 nWritten = 0;
262 0 : if( osl_createTempFile( NULL, &aFile, &aURL.pData ) != osl_File_E_None )
263 : {
264 0 : bSuccess = false;
265 : }
266 : else
267 : {
268 : #if OSL_DEBUG_LEVEL > 1
269 : OSL_TRACE( "created temp file %s\n",
270 : OUStringToOString( aURL, RTL_TEXTENCODING_UTF8 ).getStr() );
271 : #endif
272 0 : osl_writeFile( aFile, aBuf.getConstArray(), nBytes, &nWritten );
273 :
274 : OSL_ENSURE( nWritten == nBytes, "writing of header bytes failed" );
275 :
276 0 : if( nWritten == nBytes )
277 : {
278 0 : const sal_uInt32 nBufSize = 4096;
279 0 : aBuf = uno::Sequence<sal_Int8>(nBufSize);
280 : // copy the bytes
281 0 : do
282 : {
283 0 : nBytes = xInput->readBytes( aBuf, nBufSize );
284 0 : if( nBytes > 0 )
285 : {
286 0 : osl_writeFile( aFile, aBuf.getConstArray(), nBytes, &nWritten );
287 0 : if( nWritten != nBytes )
288 : {
289 0 : bSuccess = false;
290 0 : break;
291 : }
292 : }
293 : } while( nBytes == nBufSize );
294 : }
295 : }
296 0 : osl_closeFile( aFile );
297 : }
298 0 : OUString aEmbedMimetype;
299 0 : xEmbedStream = getAdditionalStream( aURL, aEmbedMimetype, aPwd, m_xContext, rFilterData, false );
300 0 : if( aFile )
301 0 : osl_removeFile( aURL.pData );
302 0 : if( !aEmbedMimetype.isEmpty() )
303 : {
304 0 : if( aEmbedMimetype == "application/vnd.oasis.opendocument.text"
305 0 : || aEmbedMimetype == "application/vnd.oasis.opendocument.text-master" )
306 0 : aOutFilterName = "writer_pdf_addstream_import";
307 0 : else if ( aEmbedMimetype == "application/vnd.oasis.opendocument.presentation" )
308 0 : aOutFilterName = "impress_pdf_addstream_import";
309 0 : else if( aEmbedMimetype == "application/vnd.oasis.opendocument.graphics"
310 0 : || aEmbedMimetype == "application/vnd.oasis.opendocument.drawing" )
311 0 : aOutFilterName = "draw_pdf_addstream_import";
312 0 : else if ( aEmbedMimetype == "application/vnd.oasis.opendocument.spreadsheet" )
313 0 : aOutFilterName = "calc_pdf_addstream_import";
314 0 : }
315 : }
316 :
317 0 : if( bSuccess )
318 : {
319 0 : if( !aOutFilterName.isEmpty() )
320 : {
321 0 : if( nFilterNamePos == -1 )
322 : {
323 0 : nFilterNamePos = nAttribs;
324 0 : rFilterData.realloc( ++nAttribs );
325 0 : rFilterData[ nFilterNamePos ].Name =
326 0 : OUString( "FilterName" );
327 : }
328 0 : aOutTypeName = "pdf_Portable_Document_Format";
329 :
330 : OSL_TRACE( "setting filter name %s, input stream %s\n",
331 : OUStringToOString( aOutFilterName, RTL_TEXTENCODING_UTF8 ).getStr(),
332 : xEmbedStream.is() ? "present" : "not present" );
333 :
334 0 : rFilterData[nFilterNamePos].Value <<= aOutFilterName;
335 0 : if( xEmbedStream.is() )
336 : {
337 0 : rFilterData.realloc( ++nAttribs );
338 0 : rFilterData[nAttribs-1].Name = "EmbeddedSubstream";
339 0 : rFilterData[nAttribs-1].Value <<= xEmbedStream;
340 : }
341 0 : if( !aPwd.isEmpty() )
342 : {
343 0 : if( nPwdPos == -1 )
344 : {
345 0 : nPwdPos = nAttribs;
346 0 : rFilterData.realloc( ++nAttribs );
347 0 : rFilterData[ nPwdPos ].Name = "Password";
348 : }
349 0 : rFilterData[ nPwdPos ].Value <<= aPwd;
350 : }
351 : }
352 : else
353 : {
354 0 : if( nFilterNamePos == -1 )
355 : {
356 0 : nFilterNamePos = nAttribs;
357 0 : rFilterData.realloc( ++nAttribs );
358 0 : rFilterData[ nFilterNamePos ].Name = "FilterName";
359 : }
360 :
361 0 : const sal_Int32 nDocumentType = 0; //const sal_Int32 nDocumentType = queryDocumentTypeDialog(m_xContext,aURL);
362 : if( nDocumentType < 0 )
363 : {
364 : return OUString();
365 : }
366 : else switch( nDocumentType )
367 : {
368 : case 0:
369 0 : rFilterData[nFilterNamePos].Value <<= OUString( "draw_pdf_import" );
370 0 : break;
371 :
372 : case 1:
373 : rFilterData[nFilterNamePos].Value <<= OUString( "impress_pdf_import" );
374 : break;
375 :
376 : case 2:
377 : rFilterData[nFilterNamePos].Value <<= OUString( "writer_pdf_import" );
378 : break;
379 :
380 : default:
381 : OSL_FAIL("Unexpected case");
382 : }
383 :
384 0 : aOutTypeName = "pdf_Portable_Document_Format";
385 : }
386 : }
387 :
388 0 : return aOutTypeName;
389 : }
390 :
391 0 : bool checkDocChecksum( const OUString& rInPDFFileURL,
392 : sal_uInt32 nBytes,
393 : const OUString& rChkSum )
394 : {
395 0 : bool bRet = false;
396 0 : if( rChkSum.getLength() != 2* RTL_DIGEST_LENGTH_MD5 )
397 : {
398 : OSL_TRACE( "checksum of length %d, expected %d\n",
399 : rChkSum.getLength(), 2*RTL_DIGEST_LENGTH_MD5 );
400 0 : return false;
401 : }
402 :
403 : // prepare checksum to test
404 : sal_uInt8 nTestChecksum[ RTL_DIGEST_LENGTH_MD5 ];
405 0 : const sal_Unicode* pChar = rChkSum.getStr();
406 0 : for( unsigned int i = 0; i < RTL_DIGEST_LENGTH_MD5; i++ )
407 : {
408 0 : sal_uInt8 nByte = sal_uInt8( ( (*pChar >= '0' && *pChar <= '9') ? *pChar - '0' :
409 0 : ( (*pChar >= 'A' && *pChar <= 'F') ? *pChar - 'A' + 10 :
410 0 : ( (*pChar >= 'a' && *pChar <= 'f') ? *pChar - 'a' + 10 :
411 0 : 0 ) ) ) );
412 0 : nByte <<= 4;
413 0 : pChar++;
414 0 : nByte |= ( (*pChar >= '0' && *pChar <= '9') ? *pChar - '0' :
415 0 : ( (*pChar >= 'A' && *pChar <= 'F') ? *pChar - 'A' + 10 :
416 0 : ( (*pChar >= 'a' && *pChar <= 'f') ? *pChar - 'a' + 10 :
417 0 : 0 ) ) );
418 0 : pChar++;
419 0 : nTestChecksum[i] = nByte;
420 : }
421 :
422 : // open file and calculate actual checksum up to index nBytes
423 : sal_uInt8 nActualChecksum[ RTL_DIGEST_LENGTH_MD5 ];
424 0 : memset( nActualChecksum, 0, sizeof(nActualChecksum) );
425 0 : rtlDigest aActualDigest = rtl_digest_createMD5();
426 0 : oslFileHandle aRead = NULL;
427 0 : oslFileError aErr = osl_File_E_None;
428 0 : if( (aErr = osl_openFile(rInPDFFileURL.pData,
429 : &aRead,
430 0 : osl_File_OpenFlag_Read )) == osl_File_E_None )
431 : {
432 : sal_Int8 aBuf[4096];
433 0 : sal_uInt32 nCur = 0;
434 0 : sal_uInt64 nBytesRead = 0;
435 0 : while( nCur < nBytes )
436 : {
437 0 : sal_uInt32 nPass = (nBytes - nCur) > sizeof( aBuf ) ? sizeof( aBuf ) : nBytes - nCur;
438 0 : if( (aErr = osl_readFile( aRead, aBuf, nPass, &nBytesRead)) != osl_File_E_None
439 0 : || nBytesRead == 0 )
440 : {
441 0 : break;
442 : }
443 0 : nPass = static_cast<sal_uInt32>(nBytesRead);
444 0 : nCur += nPass;
445 0 : rtl_digest_updateMD5( aActualDigest, aBuf, nPass );
446 : }
447 0 : rtl_digest_getMD5( aActualDigest, nActualChecksum, sizeof(nActualChecksum) );
448 0 : osl_closeFile( aRead );
449 : }
450 0 : rtl_digest_destroyMD5( aActualDigest );
451 :
452 : // compare the contents
453 0 : bRet = (0 == memcmp( nActualChecksum, nTestChecksum, sizeof( nActualChecksum ) ));
454 : #if OSL_DEBUG_LEVEL > 1
455 : OSL_TRACE( "test checksum: " );
456 : for( unsigned int i = 0; i < sizeof(nTestChecksum); i++ )
457 : OSL_TRACE( "%.2X", int(nTestChecksum[i]) );
458 : OSL_TRACE( "\n" );
459 : OSL_TRACE( "file checksum: " );
460 : for( unsigned int i = 0; i < sizeof(nActualChecksum); i++ )
461 : OSL_TRACE( "%.2X", int(nActualChecksum[i]) );
462 : OSL_TRACE( "\n" );
463 : #endif
464 0 : return bRet;
465 : }
466 :
467 0 : uno::Reference< io::XStream > getAdditionalStream( const OUString& rInPDFFileURL,
468 : OUString& rOutMimetype,
469 : OUString& io_rPwd,
470 : const uno::Reference<uno::XComponentContext>& xContext,
471 : const uno::Sequence<beans::PropertyValue>& rFilterData,
472 : bool bMayUseUI )
473 : {
474 0 : uno::Reference< io::XStream > xEmbed;
475 0 : OString aPDFFile;
476 0 : OUString aSysUPath;
477 0 : if( osl_getSystemPathFromFileURL( rInPDFFileURL.pData, &aSysUPath.pData ) != osl_File_E_None )
478 0 : return xEmbed;
479 0 : aPDFFile = OUStringToOString( aSysUPath, osl_getThreadTextEncoding() );
480 :
481 0 : pdfparse::PDFReader aParser;
482 0 : boost::scoped_ptr<pdfparse::PDFEntry> pEntry( aParser.read( aPDFFile.getStr() ));
483 0 : if( pEntry )
484 : {
485 0 : pdfparse::PDFFile* pPDFFile = dynamic_cast<pdfparse::PDFFile*>(pEntry.get());
486 0 : if( pPDFFile )
487 : {
488 0 : unsigned int nElements = pPDFFile->m_aSubElements.size();
489 0 : while( nElements-- > 0 )
490 : {
491 0 : pdfparse::PDFTrailer* pTrailer = dynamic_cast<pdfparse::PDFTrailer*>(pPDFFile->m_aSubElements[nElements]);
492 0 : if( pTrailer && pTrailer->m_pDict )
493 : {
494 : // search document checksum entry
495 : boost::unordered_map< OString,
496 : pdfparse::PDFEntry*,
497 0 : OStringHash >::iterator chk;
498 0 : chk = pTrailer->m_pDict->m_aMap.find( "DocChecksum" );
499 0 : if( chk == pTrailer->m_pDict->m_aMap.end() )
500 : {
501 : OSL_TRACE( "no DocChecksum entry" );
502 0 : continue;
503 : }
504 0 : pdfparse::PDFName* pChkSumName = dynamic_cast<pdfparse::PDFName*>(chk->second);
505 0 : if( pChkSumName == NULL )
506 : {
507 : OSL_TRACE( "no name for DocChecksum entry" );
508 0 : continue;
509 : }
510 :
511 : // search for AdditionalStreams entry
512 : boost::unordered_map< OString,
513 : pdfparse::PDFEntry*,
514 0 : OStringHash >::iterator add_stream;
515 0 : add_stream = pTrailer->m_pDict->m_aMap.find( "AdditionalStreams" );
516 0 : if( add_stream == pTrailer->m_pDict->m_aMap.end() )
517 : {
518 : OSL_TRACE( "no AdditionalStreams entry" );
519 0 : continue;
520 : }
521 0 : pdfparse::PDFArray* pStreams = dynamic_cast<pdfparse::PDFArray*>(add_stream->second);
522 0 : if( ! pStreams || pStreams->m_aSubElements.size() < 2 )
523 : {
524 : OSL_TRACE( "AdditionalStreams array too small" );
525 0 : continue;
526 : }
527 :
528 : // check checksum
529 0 : OUString aChkSum = pChkSumName->getFilteredName();
530 0 : if( ! checkDocChecksum( rInPDFFileURL, pTrailer->m_nOffset, aChkSum ) )
531 0 : continue;
532 :
533 : // extract addstream and mimetype
534 0 : pdfparse::PDFName* pMimeType = dynamic_cast<pdfparse::PDFName*>(pStreams->m_aSubElements[0]);
535 0 : pdfparse::PDFObjectRef* pStreamRef = dynamic_cast<pdfparse::PDFObjectRef*>(pStreams->m_aSubElements[1]);
536 :
537 : OSL_ENSURE( pMimeType, "error: no mimetype element\n" );
538 : OSL_ENSURE( pStreamRef, "error: no stream ref element\n" );
539 :
540 0 : if( pMimeType && pStreamRef )
541 : {
542 0 : pdfparse::PDFObject* pObject = pPDFFile->findObject( pStreamRef->m_nNumber, pStreamRef->m_nGeneration );
543 : OSL_ENSURE( pObject, "object not found\n" );
544 0 : if( pObject )
545 : {
546 0 : if( pPDFFile->isEncrypted() )
547 : {
548 0 : bool bAuthenticated = false;
549 0 : if( !io_rPwd.isEmpty() )
550 : {
551 : OString aIsoPwd = OUStringToOString( io_rPwd,
552 0 : RTL_TEXTENCODING_ISO_8859_1 );
553 0 : bAuthenticated = pPDFFile->setupDecryptionData( aIsoPwd.getStr() );
554 : }
555 0 : if( ! bAuthenticated )
556 : {
557 0 : const beans::PropertyValue* pAttribs = rFilterData.getConstArray();
558 0 : sal_Int32 nAttribs = rFilterData.getLength();
559 0 : uno::Reference< task::XInteractionHandler > xIntHdl;
560 0 : for( sal_Int32 i = 0; i < nAttribs; i++ )
561 : {
562 0 : if ( pAttribs[i].Name == "InteractionHandler" )
563 0 : pAttribs[i].Value >>= xIntHdl;
564 : }
565 0 : if( ! bMayUseUI || ! xIntHdl.is() )
566 : {
567 0 : rOutMimetype = pMimeType->getFilteredName();
568 0 : xEmbed.clear();
569 0 : break;
570 : }
571 :
572 0 : OUString aDocName( rInPDFFileURL.copy( rInPDFFileURL.lastIndexOf( '/' )+1 ) );
573 :
574 0 : bool bEntered = false;
575 0 : do
576 : {
577 0 : bEntered = getPassword( xIntHdl, io_rPwd, ! bEntered, aDocName );
578 : OString aIsoPwd = OUStringToOString( io_rPwd,
579 0 : RTL_TEXTENCODING_ISO_8859_1 );
580 0 : bAuthenticated = pPDFFile->setupDecryptionData( aIsoPwd.getStr() );
581 0 : } while( bEntered && ! bAuthenticated );
582 : }
583 :
584 : OSL_TRACE( "password: %s", bAuthenticated ? "matches" : "does not match" );
585 0 : if( ! bAuthenticated )
586 0 : continue;
587 : }
588 0 : rOutMimetype = pMimeType->getFilteredName();
589 : FileEmitContext aContext( rInPDFFileURL,
590 : xContext,
591 0 : pPDFFile );
592 0 : aContext.m_bDecrypt = pPDFFile->isEncrypted();
593 0 : pObject->writeStream( aContext, pPDFFile );
594 0 : xEmbed = aContext.getContextStream();
595 0 : break; // success
596 : }
597 0 : }
598 : }
599 : }
600 : }
601 : }
602 :
603 : OSL_TRACE( "extracted add stream: mimetype %s\n",
604 : OUStringToOString( rOutMimetype,
605 : RTL_TEXTENCODING_UTF8 ).getStr());
606 0 : return xEmbed;
607 : }
608 :
609 : }
610 :
611 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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