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Diffstat (limited to 'sdext/source/pdfimport/filterdet.cxx')
| -rw-r--r-- | sdext/source/pdfimport/filterdet.cxx | 757 |
1 files changed, 0 insertions, 757 deletions
diff --git a/sdext/source/pdfimport/filterdet.cxx b/sdext/source/pdfimport/filterdet.cxx deleted file mode 100644 index c83919c..0000000 --- a/sdext/source/pdfimport/filterdet.cxx +++ /dev/null @@ -1,757 +0,0 @@ -/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ -/************************************************************************* - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * Copyright 2000, 2010 Oracle and/or its affiliates. - * - * OpenOffice.org - a multi-platform office productivity suite - * - * This file is part of OpenOffice.org. - * - * OpenOffice.org is free software: you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 3 - * only, as published by the Free Software Foundation. - * - * OpenOffice.org is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public License version 3 for more details - * (a copy is included in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU Lesser General Public License - * version 3 along with OpenOffice.org. If not, see - * <http://www.openoffice.org/license.html> - * for a copy of the LGPLv3 License. - * - ************************************************************************/ - -// MARKER(update_precomp.py): autogen include statement, do not remove -#include "precompiled_sdext.hxx" - -#include "filterdet.hxx" -#include "inc/pdfparse.hxx" - -#include <osl/diagnose.h> -#include <osl/file.h> -#include <osl/thread.h> -#include <rtl/digest.h> -#include <rtl/ref.hxx> -#include <com/sun/star/lang/XMultiServiceFactory.hpp> -#include <com/sun/star/beans/XPropertySet.hpp> -#include <com/sun/star/awt/XWindow.hpp> -#include <com/sun/star/awt/XListBox.hpp> -#include <com/sun/star/awt/XDialogEventHandler.hpp> -#include <com/sun/star/awt/XDialogProvider2.hpp> -#include <com/sun/star/awt/XControlContainer.hpp> -#include <com/sun/star/uno/RuntimeException.hpp> -#include <com/sun/star/io/XInputStream.hpp> -#include <com/sun/star/io/XStream.hpp> -#include <com/sun/star/io/XSeekable.hpp> - -#include <boost/scoped_ptr.hpp> - -using namespace com::sun::star; - -namespace pdfi -{ - -// TODO(T3): locking/thread safety - -namespace { - typedef ::cppu::WeakComponentImplHelper1< - com::sun::star::awt::XDialogEventHandler > ChooserDialogHandlerBase; - class ChooserDialogHandler : private cppu::BaseMutex, - public ChooserDialogHandlerBase - { - uno::Reference<awt::XListBox> m_xListbox; - uno::Reference<awt::XWindow> m_xWriterText; - uno::Reference<awt::XWindow> m_xDrawText; - uno::Reference<awt::XWindow> m_xImpressText; - - enum{ DRAW_INDEX=0, IMPRESS_INDEX=1, WRITER_INDEX=2 }; - void selectionChanged( sal_Int32 nIndex ) const - { - sal_Bool bWriterState(sal_False); - sal_Bool bDrawState(sal_False); - sal_Bool bImpressState(sal_False); - switch(nIndex) - { - default: - OSL_FAIL("Unexpected case!"); - break; - case DRAW_INDEX: - bDrawState=sal_True; - break; - case IMPRESS_INDEX: - bImpressState=sal_True; - break; - case WRITER_INDEX: - bWriterState=sal_True; - break; - } - m_xWriterText->setVisible(bWriterState); - m_xDrawText->setVisible(bDrawState); - m_xImpressText->setVisible(bImpressState); - } - public: - ChooserDialogHandler() : - ChooserDialogHandlerBase(m_aMutex), - m_xListbox(), - m_xWriterText(), - m_xDrawText(), - m_xImpressText() - {} - - void initControls( const uno::Reference<awt::XControlContainer>& xControls, - const rtl::OUString& rFilename ) - { - m_xListbox.set(xControls->getControl( - rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "ListBox" ))), - uno::UNO_QUERY_THROW ); - m_xWriterText.set(xControls->getControl( - rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "InfoWriter" ))), - uno::UNO_QUERY_THROW ); - m_xImpressText.set(xControls->getControl( - rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "InfoImpress" ))), - uno::UNO_QUERY_THROW ); - m_xDrawText.set(xControls->getControl( - rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "InfoDraw" ))), - uno::UNO_QUERY_THROW ); - - uno::Reference<awt::XWindow> xControl; - xControl.set(xControls->getControl( - rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "ListBoxWriter" ))), - uno::UNO_QUERY_THROW ); - xControl->setVisible(sal_False); - xControl.set(xControls->getControl( - rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "ListBoxImpress" ))), - uno::UNO_QUERY_THROW ); - xControl->setVisible(sal_False); - xControl.set(xControls->getControl( - rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "ListBoxDraw" ))), - uno::UNO_QUERY_THROW ); - xControl->setVisible(sal_False); - uno::Reference<beans::XPropertySet> xPropSet( - xControls->getControl( - rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "ComboLabel" )))->getModel(), - uno::UNO_QUERY_THROW ); - rtl::OUString aFilename( rFilename.copy(rFilename.lastIndexOf('/')+1) ); - rtl::OUString aLabel; - xPropSet->getPropertyValue(rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Label" ))) >>= aLabel; - const char pFileName[] = "%FILENAME"; - aLabel = aLabel.replaceAt( - aLabel.indexOfAsciiL(pFileName,sizeof(pFileName)/sizeof(*pFileName)-1), - sizeof(pFileName)/sizeof(*pFileName)-1, - aFilename ); - xPropSet->setPropertyValue(rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Label" )), - uno::makeAny(aLabel)); - - uno::Sequence<rtl::OUString> aListboxItems(3); - aListboxItems[DRAW_INDEX] = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Drawing" )); - aListboxItems[IMPRESS_INDEX] = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Presentation" )); - aListboxItems[WRITER_INDEX] = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Text Document" )); - - m_xListbox->addItems(aListboxItems,0); - m_xListbox->selectItemPos(0,sal_True); - selectionChanged(0); - } - - sal_Int32 getSelectedItem() const - { - return m_xListbox->getSelectedItemPos(); - } - - virtual ::sal_Bool SAL_CALL callHandlerMethod( const uno::Reference< awt::XDialog >& /*xDialog*/, - const uno::Any& /*EventObject*/, - const ::rtl::OUString& MethodName ) throw (lang::WrappedTargetException, uno::RuntimeException) - { - (void)MethodName; - OSL_ENSURE( MethodName.compareToAscii("SelectionChanged") == 0, - "Invalid event name" ); - selectionChanged(getSelectedItem()); - return sal_True; - } - - virtual uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedMethodNames( ) throw (uno::RuntimeException) - { - uno::Sequence< ::rtl::OUString > aMethods(1); - aMethods[0] = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "SelectionChanged" )); - return aMethods; - } - }; -} - -class FileEmitContext : public pdfparse::EmitContext -{ -private: - oslFileHandle m_aReadHandle; - unsigned int m_nReadLen; - uno::Reference< io::XStream > m_xContextStream; - uno::Reference< io::XSeekable > m_xSeek; - uno::Reference< io::XOutputStream > m_xOut; - -public: - FileEmitContext( const rtl::OUString& rOrigFile, - const uno::Reference< uno::XComponentContext >& xContext, - const pdfparse::PDFContainer* pTop ); - virtual ~FileEmitContext(); - - virtual bool write( const void* pBuf, unsigned int nLen ); - virtual unsigned int getCurPos(); - virtual bool copyOrigBytes( unsigned int nOrigOffset, unsigned int nLen ); - virtual unsigned int readOrigBytes( unsigned int nOrigOffset, unsigned int nLen, void* pBuf ); - - const uno::Reference< io::XStream >& getContextStream() const { return m_xContextStream; } -}; - -FileEmitContext::FileEmitContext( const rtl::OUString& rOrigFile, - const uno::Reference< uno::XComponentContext >& xContext, - const pdfparse::PDFContainer* pTop ) : - pdfparse::EmitContext( pTop ), - m_aReadHandle(NULL), - m_nReadLen(0), - m_xContextStream(), - m_xSeek(), - m_xOut() -{ - m_xContextStream = uno::Reference< io::XStream >( - xContext->getServiceManager()->createInstanceWithContext( - rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.io.TempFile" ) ), - xContext ), uno::UNO_QUERY_THROW ); - m_xOut = m_xContextStream->getOutputStream(); - m_xSeek = uno::Reference<io::XSeekable>(m_xOut, uno::UNO_QUERY_THROW ); - - oslFileError aErr = osl_File_E_None; - if( (aErr=osl_openFile( rOrigFile.pData, - &m_aReadHandle, - osl_File_OpenFlag_Read )) == osl_File_E_None ) - { - if( (aErr=osl_setFilePos( m_aReadHandle, - osl_Pos_End, - 0 )) == osl_File_E_None ) - { - sal_uInt64 nFileSize = 0; - if( (aErr=osl_getFilePos( m_aReadHandle, - &nFileSize )) == osl_File_E_None ) - { - m_nReadLen = static_cast<unsigned int>(nFileSize); - } - } - if( aErr != osl_File_E_None ) - { - osl_closeFile( m_aReadHandle ); - m_aReadHandle = NULL; - } - } - m_bDeflate = true; -} - -FileEmitContext::~FileEmitContext() -{ - if( m_aReadHandle ) - osl_closeFile( m_aReadHandle ); -} - -bool FileEmitContext::write( const void* pBuf, unsigned int nLen ) -{ - if( ! m_xOut.is() ) - return false; - - uno::Sequence< sal_Int8 > aSeq( nLen ); - rtl_copyMemory( aSeq.getArray(), pBuf, nLen ); - m_xOut->writeBytes( aSeq ); - return true; -} - -unsigned int FileEmitContext::getCurPos() -{ - unsigned int nPos = 0; - if( m_xSeek.is() ) - { - nPos = static_cast<unsigned int>( m_xSeek->getPosition() ); - } - return nPos; -} - -bool FileEmitContext::copyOrigBytes( unsigned int nOrigOffset, unsigned int nLen ) -{ - if( nOrigOffset + nLen > m_nReadLen ) - return false; - - if( osl_setFilePos( m_aReadHandle, osl_Pos_Absolut, nOrigOffset ) != osl_File_E_None ) - return false; - - uno::Sequence< sal_Int8 > aSeq( nLen ); - - sal_uInt64 nBytesRead = 0; - if( osl_readFile( m_aReadHandle, - aSeq.getArray(), - nLen, - &nBytesRead ) != osl_File_E_None - || nBytesRead != static_cast<sal_uInt64>(nLen) ) - { - return false; - } - - m_xOut->writeBytes( aSeq ); - return true; -} - -unsigned int FileEmitContext::readOrigBytes( unsigned int nOrigOffset, unsigned int nLen, void* pBuf ) -{ - if( nOrigOffset + nLen > m_nReadLen ) - return 0; - - if( osl_setFilePos( m_aReadHandle, - osl_Pos_Absolut, - nOrigOffset ) != osl_File_E_None ) - { - return 0; - } - - sal_uInt64 nBytesRead = 0; - if( osl_readFile( m_aReadHandle, - pBuf, - nLen, - &nBytesRead ) != osl_File_E_None ) - { - return 0; - } - return static_cast<unsigned int>(nBytesRead); -} - - -//////////////////////////////////////////////////////////////////////////////// - - -PDFDetector::PDFDetector( const uno::Reference< uno::XComponentContext >& xContext) : - PDFDetectorBase( m_aMutex ), - m_xContext( xContext ) -{} - -// XExtendedFilterDetection -rtl::OUString SAL_CALL PDFDetector::detect( uno::Sequence< beans::PropertyValue >& rFilterData ) throw( uno::RuntimeException ) -{ - osl::MutexGuard const guard( m_aMutex ); - bool bSuccess = false; - - // get the InputStream carrying the PDF content - uno::Reference< io::XInputStream > xInput; - uno::Reference< io::XStream > xEmbedStream; - rtl::OUString aOutFilterName, aOutTypeName; - rtl::OUString aURL; - rtl::OUString aPwd; - const beans::PropertyValue* pAttribs = rFilterData.getConstArray(); - sal_Int32 nAttribs = rFilterData.getLength(); - sal_Int32 nFilterNamePos = -1; - sal_Int32 nPwdPos = -1; - for( sal_Int32 i = 0; i < nAttribs; i++ ) - { -#if OSL_DEBUG_LEVEL > 1 - rtl::OUString aVal( RTL_CONSTASCII_USTRINGPARAM( "<no string>" ) ); - pAttribs[i].Value >>= aVal; - OSL_TRACE( "doDetection: Attrib: %s = %s\n", - rtl::OUStringToOString( pAttribs[i].Name, RTL_TEXTENCODING_UTF8 ).getStr(), - rtl::OUStringToOString( aVal, RTL_TEXTENCODING_UTF8 ).getStr() ); -#endif - if( pAttribs[i].Name.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "InputStream" ) ) ) - pAttribs[i].Value >>= xInput; - else if( pAttribs[i].Name.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "URL" ) ) ) - pAttribs[i].Value >>= aURL; - else if( pAttribs[i].Name.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "FilterName" ) ) ) - nFilterNamePos = i; - else if( pAttribs[i].Name.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "Password" ) ) ) - { - nPwdPos = i; - pAttribs[i].Value >>= aPwd; - } - } - if( xInput.is() ) - { - uno::Reference< io::XSeekable > xSeek( xInput, uno::UNO_QUERY ); - if( xSeek.is() ) - xSeek->seek( 0 ); - // read the first 1024 byte (see PDF reference implementation note 12) - const sal_Int32 nHeaderSize = 1024; - uno::Sequence< sal_Int8 > aBuf( nHeaderSize ); - sal_uInt64 nBytes = 0; - nBytes = xInput->readBytes( aBuf, nHeaderSize ); - if( nBytes > 5 ) - { - const sal_Int8* pBytes = aBuf.getConstArray(); - for( unsigned int i = 0; i < nBytes-5; i++ ) - { - if( pBytes[i] == '%' && - pBytes[i+1] == 'P' && - pBytes[i+2] == 'D' && - pBytes[i+3] == 'F' && - pBytes[i+4] == '-' ) - { - bSuccess = true; - break; - } - } - } - - // check for hybrid PDF - oslFileHandle aFile = NULL; - if( bSuccess && - ( aURL.getLength() == 0 || aURL.compareToAscii( "file:", 5 ) != 0 ) - ) - { - sal_uInt64 nWritten = 0; - if( osl_createTempFile( NULL, &aFile, &aURL.pData ) != osl_File_E_None ) - { - bSuccess = false; - } - else - { -#if OSL_DEBUG_LEVEL > 1 - OSL_TRACE( "created temp file %s\n", - rtl::OUStringToOString( aURL, RTL_TEXTENCODING_UTF8 ).getStr() ); -#endif - osl_writeFile( aFile, aBuf.getConstArray(), nBytes, &nWritten ); - - OSL_ENSURE( nWritten == nBytes, "writing of header bytes failed" ); - - if( nWritten == nBytes ) - { - const sal_uInt32 nBufSize = 4096; - aBuf = uno::Sequence<sal_Int8>(nBufSize); - // copy the bytes - do - { - nBytes = xInput->readBytes( aBuf, nBufSize ); - if( nBytes > 0 ) - { - osl_writeFile( aFile, aBuf.getConstArray(), nBytes, &nWritten ); - if( nWritten != nBytes ) - { - bSuccess = false; - break; - } - } - } while( nBytes == nBufSize ); - } - } - osl_closeFile( aFile ); - } - rtl::OUString aEmbedMimetype; - xEmbedStream = getAdditionalStream( aURL, aEmbedMimetype, aPwd, m_xContext, rFilterData, false ); - if( aFile ) - osl_removeFile( aURL.pData ); - if( aEmbedMimetype.getLength() ) - { - if( aEmbedMimetype.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "application/vnd.oasis.opendocument.text" ) ) - || aEmbedMimetype.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "application/vnd.oasis.opendocument.text-master" ) ) ) - aOutFilterName = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "writer_pdf_addstream_import" ) ); - else if( aEmbedMimetype.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "application/vnd.oasis.opendocument.presentation" ) ) ) - aOutFilterName = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "impress_pdf_addstream_import" ) ); - else if( aEmbedMimetype.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "application/vnd.oasis.opendocument.graphics" ) ) - || aEmbedMimetype.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "application/vnd.oasis.opendocument.drawing" ) ) ) - aOutFilterName = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "draw_pdf_addstream_import" ) ); - else if( aEmbedMimetype.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "application/vnd.oasis.opendocument.spreadsheet" ) ) ) - aOutFilterName = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "calc_pdf_addstream_import" ) ); - } - } - - if( bSuccess ) - { - if( aOutFilterName.getLength() ) - { - if( nFilterNamePos == -1 ) - { - nFilterNamePos = nAttribs; - rFilterData.realloc( ++nAttribs ); - rFilterData[ nFilterNamePos ].Name = - rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "FilterName" ) ); - } - aOutTypeName = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("pdf_Portable_Document_Format") ); - - OSL_TRACE( "setting filter name %s, input stream %s\n", - rtl::OUStringToOString( aOutFilterName, RTL_TEXTENCODING_UTF8 ).getStr(), - xEmbedStream.is() ? "present" : "not present" ); - - rFilterData[nFilterNamePos].Value <<= aOutFilterName; - if( xEmbedStream.is() ) - { - rFilterData.realloc( ++nAttribs ); - rFilterData[nAttribs-1].Name = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "EmbeddedSubstream" ) ); - rFilterData[nAttribs-1].Value <<= xEmbedStream; - } - if( aPwd.getLength() ) - { - if( nPwdPos == -1 ) - { - nPwdPos = nAttribs; - rFilterData.realloc( ++nAttribs ); - rFilterData[ nPwdPos ].Name = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Password" ) ); - } - rFilterData[ nPwdPos ].Value <<= aPwd; - } - } - else - { - if( nFilterNamePos == -1 ) - { - nFilterNamePos = nAttribs; - rFilterData.realloc( ++nAttribs ); - rFilterData[ nFilterNamePos ].Name = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "FilterName" ) ); - } - - const sal_Int32 nDocumentType = 0; //const sal_Int32 nDocumentType = queryDocumentTypeDialog(m_xContext,aURL); - if( nDocumentType < 0 ) - { - return rtl::OUString(); - } - else switch( nDocumentType ) - { - case 0: - rFilterData[nFilterNamePos].Value <<= rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "draw_pdf_import" ) ); - break; - - case 1: - rFilterData[nFilterNamePos].Value <<= rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "impress_pdf_import" ) ); - break; - - case 2: - rFilterData[nFilterNamePos].Value <<= rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "writer_pdf_import" ) ); - break; - - default: - OSL_FAIL("Unexpected case"); - } - - aOutTypeName = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("pdf_Portable_Document_Format") ); - } - } - - return aOutTypeName; -} - -bool checkDocChecksum( const rtl::OUString& rInPDFFileURL, - sal_uInt32 nBytes, - const rtl::OUString& rChkSum ) -{ - bool bRet = false; - if( rChkSum.getLength() != 2* RTL_DIGEST_LENGTH_MD5 ) - { - OSL_TRACE( "checksum of length %d, expected %d\n", - rChkSum.getLength(), 2*RTL_DIGEST_LENGTH_MD5 ); - return false; - } - - // prepare checksum to test - sal_uInt8 nTestChecksum[ RTL_DIGEST_LENGTH_MD5 ]; - const sal_Unicode* pChar = rChkSum.getStr(); - for( unsigned int i = 0; i < RTL_DIGEST_LENGTH_MD5; i++ ) - { - sal_uInt8 nByte = sal_uInt8( ( (*pChar >= '0' && *pChar <= '9') ? *pChar - '0' : - ( (*pChar >= 'A' && *pChar <= 'F') ? *pChar - 'A' + 10 : - ( (*pChar >= 'a' && *pChar <= 'f') ? *pChar - 'a' + 10 : - 0 ) ) ) ); - nByte <<= 4; - pChar++; - nByte |= ( (*pChar >= '0' && *pChar <= '9') ? *pChar - '0' : - ( (*pChar >= 'A' && *pChar <= 'F') ? *pChar - 'A' + 10 : - ( (*pChar >= 'a' && *pChar <= 'f') ? *pChar - 'a' + 10 : - 0 ) ) ); - pChar++; - nTestChecksum[i] = nByte; - } - - // open file and calculate actual checksum up to index nBytes - sal_uInt8 nActualChecksum[ RTL_DIGEST_LENGTH_MD5 ]; - rtl_zeroMemory( nActualChecksum, sizeof(nActualChecksum) ); - rtlDigest aActualDigest = rtl_digest_createMD5(); - oslFileHandle aRead = NULL; - oslFileError aErr = osl_File_E_None; - if( (aErr = osl_openFile(rInPDFFileURL.pData, - &aRead, - osl_File_OpenFlag_Read )) == osl_File_E_None ) - { - sal_Int8 aBuf[4096]; - sal_uInt32 nCur = 0; - sal_uInt64 nBytesRead = 0; - while( nCur < nBytes ) - { - sal_uInt32 nPass = (nBytes - nCur) > sizeof( aBuf ) ? sizeof( aBuf ) : nBytes - nCur; - if( (aErr = osl_readFile( aRead, aBuf, nPass, &nBytesRead)) != osl_File_E_None - || nBytesRead == 0 ) - { - break; - } - nPass = static_cast<sal_uInt32>(nBytesRead); - nCur += nPass; - rtl_digest_updateMD5( aActualDigest, aBuf, nPass ); - } - rtl_digest_getMD5( aActualDigest, nActualChecksum, sizeof(nActualChecksum) ); - osl_closeFile( aRead ); - } - rtl_digest_destroyMD5( aActualDigest ); - - // compare the contents - bRet = (0 == rtl_compareMemory( nActualChecksum, nTestChecksum, sizeof( nActualChecksum ) )); -#if OSL_DEBUG_LEVEL > 1 - OSL_TRACE( "test checksum: " ); - for( unsigned int i = 0; i < sizeof(nTestChecksum); i++ ) - OSL_TRACE( "%.2X", int(nTestChecksum[i]) ); - OSL_TRACE( "\n" ); - OSL_TRACE( "file checksum: " ); - for( unsigned int i = 0; i < sizeof(nActualChecksum); i++ ) - OSL_TRACE( "%.2X", int(nActualChecksum[i]) ); - OSL_TRACE( "\n" ); -#endif - return bRet; -} - -uno::Reference< io::XStream > getAdditionalStream( const rtl::OUString& rInPDFFileURL, - rtl::OUString& rOutMimetype, - rtl::OUString& io_rPwd, - const uno::Reference<uno::XComponentContext>& xContext, - const uno::Sequence<beans::PropertyValue>& rFilterData, - bool bMayUseUI ) -{ - uno::Reference< io::XStream > xEmbed; - rtl::OString aPDFFile; - rtl::OUString aSysUPath; - if( osl_getSystemPathFromFileURL( rInPDFFileURL.pData, &aSysUPath.pData ) != osl_File_E_None ) - return xEmbed; - aPDFFile = rtl::OUStringToOString( aSysUPath, osl_getThreadTextEncoding() ); - - pdfparse::PDFReader aParser; - boost::scoped_ptr<pdfparse::PDFEntry> pEntry( aParser.read( aPDFFile.getStr() )); - if( pEntry ) - { - pdfparse::PDFFile* pPDFFile = dynamic_cast<pdfparse::PDFFile*>(pEntry.get()); - if( pPDFFile ) - { - unsigned int nElements = pPDFFile->m_aSubElements.size(); - while( nElements-- > 0 ) - { - pdfparse::PDFTrailer* pTrailer = dynamic_cast<pdfparse::PDFTrailer*>(pPDFFile->m_aSubElements[nElements]); - if( pTrailer && pTrailer->m_pDict ) - { - // search document checksum entry - boost::unordered_map< rtl::OString, - pdfparse::PDFEntry*, - rtl::OStringHash >::iterator chk; - chk = pTrailer->m_pDict->m_aMap.find( "DocChecksum" ); - if( chk == pTrailer->m_pDict->m_aMap.end() ) - { - OSL_TRACE( "no DocChecksum entry\n" ); - continue; - } - pdfparse::PDFName* pChkSumName = dynamic_cast<pdfparse::PDFName*>(chk->second); - if( pChkSumName == NULL ) - { - OSL_TRACE( "no name for DocChecksum entry\n" ); - continue; - } - - // search for AdditionalStreams entry - boost::unordered_map< rtl::OString, - pdfparse::PDFEntry*, - rtl::OStringHash >::iterator add_stream; - add_stream = pTrailer->m_pDict->m_aMap.find( "AdditionalStreams" ); - if( add_stream == pTrailer->m_pDict->m_aMap.end() ) - { - OSL_TRACE( "no AdditionalStreams entry\n" ); - continue; - } - pdfparse::PDFArray* pStreams = dynamic_cast<pdfparse::PDFArray*>(add_stream->second); - if( ! pStreams || pStreams->m_aSubElements.size() < 2 ) - { - OSL_TRACE( "AdditionalStreams array too small\n" ); - continue; - } - - // check checksum - rtl::OUString aChkSum = pChkSumName->getFilteredName(); - if( ! checkDocChecksum( rInPDFFileURL, pTrailer->m_nOffset, aChkSum ) ) - continue; - - // extract addstream and mimetype - pdfparse::PDFName* pMimeType = dynamic_cast<pdfparse::PDFName*>(pStreams->m_aSubElements[0]); - pdfparse::PDFObjectRef* pStreamRef = dynamic_cast<pdfparse::PDFObjectRef*>(pStreams->m_aSubElements[1]); - - OSL_ENSURE( pMimeType, "error: no mimetype element\n" ); - OSL_ENSURE( pStreamRef, "error: no stream ref element\n" ); - - if( pMimeType && pStreamRef ) - { - pdfparse::PDFObject* pObject = pPDFFile->findObject( pStreamRef->m_nNumber, pStreamRef->m_nGeneration ); - OSL_ENSURE( pObject, "object not found\n" ); - if( pObject ) - { - if( pPDFFile->isEncrypted() ) - { - bool bAuthenticated = false; - if( io_rPwd.getLength() ) - { - rtl::OString aIsoPwd = rtl::OUStringToOString( io_rPwd, - RTL_TEXTENCODING_ISO_8859_1 ); - bAuthenticated = pPDFFile->setupDecryptionData( aIsoPwd.getStr() ); - // trash password string on heap - rtl_zeroMemory( (void*)aIsoPwd.getStr(), aIsoPwd.getLength() ); - } - if( ! bAuthenticated ) - { - const beans::PropertyValue* pAttribs = rFilterData.getConstArray(); - sal_Int32 nAttribs = rFilterData.getLength(); - uno::Reference< task::XInteractionHandler > xIntHdl; - for( sal_Int32 i = 0; i < nAttribs; i++ ) - { - if( pAttribs[i].Name.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "InteractionHandler" ) ) ) - pAttribs[i].Value >>= xIntHdl; - } - if( ! bMayUseUI || ! xIntHdl.is() ) - { - rOutMimetype = pMimeType->getFilteredName(); - xEmbed.clear(); - break; - } - - rtl::OUString aDocName( rInPDFFileURL.copy( rInPDFFileURL.lastIndexOf( sal_Unicode('/') )+1 ) ); - - bool bEntered = false; - do - { - bEntered = getPassword( xIntHdl, io_rPwd, ! bEntered, aDocName ); - rtl::OString aIsoPwd = rtl::OUStringToOString( io_rPwd, - RTL_TEXTENCODING_ISO_8859_1 ); - bAuthenticated = pPDFFile->setupDecryptionData( aIsoPwd.getStr() ); - // trash password string on heap - rtl_zeroMemory( (void*)aIsoPwd.getStr(), aIsoPwd.getLength() ); - } while( bEntered && ! bAuthenticated ); - } - - OSL_TRACE( "password: %s\n", bAuthenticated ? "matches" : "does not match" ); - if( ! bAuthenticated ) - continue; - } - rOutMimetype = pMimeType->getFilteredName(); - FileEmitContext aContext( rInPDFFileURL, - xContext, - pPDFFile ); - aContext.m_bDecrypt = pPDFFile->isEncrypted(); - pObject->writeStream( aContext, pPDFFile ); - xEmbed = aContext.getContextStream(); - break; // success - } - } - } - } - } - } - - OSL_TRACE( "extracted add stream: mimetype %s\n", - rtl::OUStringToOString( rOutMimetype, - RTL_TEXTENCODING_UTF8 ).getStr()); - return xEmbed; -} - -} - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |