Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 532 insertions, 0 deletions

diff --git a/sdext/source/pdfimport/test/pdfunzip.cxx b/sdext/source/pdfimport/test/pdfunzip.cxx
new file mode 100644
index 000000000..86797056e
--- /dev/null
+++ b/sdext/source/pdfimport/test/pdfunzip.cxx
@@ -0,0 +1,532 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <stdio.h>
+#include <string_view>
+
+#include <sal/main.h>
+#include <osl/file.h>
+#include <osl/thread.h>
+#include <rtl/alloc.h>
+#include <rtl/ustring.hxx>
+#include <rtl/strbuf.hxx>
+#include <o3tl/string_view.hxx>
+
+#include <pdfparse.hxx>
+
+using namespace pdfparse;
+
+
+static void printHelp( const char* pExe )
+{
+    fprintf( stdout,
+    "USAGE: %s [-h,--help]\n"
+    "       %s [-pw, --password <password>] <inputfile> [<outputfile>]\n"
+    "       %s <-a, --extract-add-streams> [-pw, --password <password>] <inputfile> [<outputfile>]\n"
+    "       %s <-f, --extract-fonts> [-pw, --password <password>] <inputfile> [<outputfile>]\n"
+    "       %s <-o, --extract-objects> <o0>[:<g0>][,<o1>[:g1][,...]] [-pw, --password <password>] <inputfile> [<outputfile>]\n"
+    "  -h, --help: show help\n"
+    "  -a, --extract-add-streams: extracts additional streams to outputfile_object\n"
+    "      and prints the mimetype found to stdout\n"
+    "  -f, --extract-fonts: extracts fonts (currently only type1 and truetype are supported\n"
+    "  -o, --extract-objects: extracts object streams, the syntax of the argument is comma separated\n"
+    "      object numbers, where object number and generation number are separated by \':\'\n"
+    "      an omitted generation number defaults to 0\n"
+    "  -pw, --password: use password for decryption\n"
+    "\n"
+    "note: -f, -a, -o and normal unzip operation are mutually exclusive\n"
+    , pExe, pExe, pExe, pExe, pExe );
+}
+
+namespace {
+
+class FileEmitContext : public EmitContext
+{
+    oslFileHandle m_aHandle;
+    oslFileHandle m_aReadHandle;
+    unsigned int  m_nReadLen;
+
+    void openReadFile( const char* pOrigName );
+
+    public:
+    FileEmitContext( const char* pFileName, const char* pOrigName, const PDFContainer* pTop );
+    virtual ~FileEmitContext() override;
+
+    virtual bool write( const void* pBuf, unsigned int nLen ) noexcept override;
+    virtual unsigned int getCurPos() noexcept override;
+    virtual bool copyOrigBytes( unsigned int nOrigOffset, unsigned int nLen ) noexcept override;
+    virtual unsigned int readOrigBytes( unsigned int nOrigOffset, unsigned int nLen, void* pBuf ) noexcept override;
+};
+
+}
+
+FileEmitContext::FileEmitContext( const char* pFileName, const char* pOrigName, const PDFContainer* pTop )
+    : EmitContext( pTop ),
+      m_aHandle( nullptr ),
+      m_aReadHandle( nullptr ),
+      m_nReadLen( 0 )
+{
+    OUString aSysFile(
+        OStringToOUString( std::string_view( pFileName ), osl_getThreadTextEncoding() ) );
+    OUString aURL;
+    if( osl_getFileURLFromSystemPath( aSysFile.pData, &aURL.pData ) != osl_File_E_None )
+    {
+        fprintf( stderr, "filename conversion \"%s\" failed\n", pFileName );
+        return;
+    }
+
+    if( osl_openFile( aURL.pData, &m_aHandle, osl_File_OpenFlag_Write ) == osl_File_E_None )
+    {
+        if( osl_setFileSize( m_aHandle, 0 ) != osl_File_E_None )
+        {
+            fprintf( stderr, "could not truncate %s\n", pFileName );
+            osl_closeFile( m_aHandle );
+            m_aHandle = nullptr;
+        }
+    }
+    else if( osl_openFile( aURL.pData, &m_aHandle,
+            osl_File_OpenFlag_Write |osl_File_OpenFlag_Create ) != osl_File_E_None )
+    {
+        fprintf( stderr, "could not open %s\n", pFileName );
+        return;
+    }
+    m_bDeflate = true;
+
+    openReadFile( pOrigName );
+}
+
+FileEmitContext::~FileEmitContext()
+{
+    if( m_aHandle )
+        osl_closeFile( m_aHandle );
+    if( m_aReadHandle )
+        osl_closeFile( m_aReadHandle );
+}
+
+void FileEmitContext::openReadFile( const char* pInFile )
+{
+    OUString aSysFile(
+        OStringToOUString( std::string_view( pInFile ), osl_getThreadTextEncoding() ) );
+    OUString aURL;
+    if( osl_getFileURLFromSystemPath( aSysFile.pData, &aURL.pData ) != osl_File_E_None )
+    {
+        fprintf( stderr, "filename conversion \"%s\" failed\n", pInFile );
+        return;
+    }
+
+    if( osl_openFile( aURL.pData, &m_aReadHandle, osl_File_OpenFlag_Read ) != osl_File_E_None )
+    {
+        fprintf( stderr, "could not open %s\n", pInFile );
+        return;
+    }
+
+    if( osl_setFilePos( m_aReadHandle, osl_Pos_End, 0 ) != osl_File_E_None )
+    {
+        fprintf( stderr, "could not seek to end of %s\n", pInFile );
+        osl_closeFile( m_aReadHandle );
+        return;
+    }
+
+    sal_uInt64 nFileSize = 0;
+    if( osl_getFilePos( m_aReadHandle, &nFileSize ) != osl_File_E_None )
+    {
+        fprintf( stderr, "could not get end pos of %s\n", pInFile );
+        osl_closeFile( m_aReadHandle );
+        return;
+    }
+
+    m_nReadLen = static_cast<unsigned int>(nFileSize);
+}
+
+bool FileEmitContext::write( const void* pBuf, unsigned int nLen ) noexcept
+{
+    if( ! m_aHandle )
+        return false;
+
+    sal_uInt64 nWrite = static_cast<sal_uInt64>(nLen);
+    sal_uInt64 nWritten = 0;
+    return (osl_writeFile( m_aHandle, pBuf, nWrite, &nWritten ) == osl_File_E_None)
+           && nWrite == nWritten;
+}
+
+unsigned int FileEmitContext::getCurPos() noexcept
+{
+    sal_uInt64 nFileSize = 0;
+    if( m_aHandle )
+    {
+        if( osl_getFilePos( m_aHandle, &nFileSize ) != osl_File_E_None )
+            nFileSize = 0;
+    }
+    return static_cast<unsigned int>(nFileSize);
+}
+
+bool FileEmitContext::copyOrigBytes( unsigned int nOrigOffset, unsigned int nLen ) noexcept
+{
+    if( nOrigOffset + nLen > m_nReadLen )
+        return false;
+
+    if( osl_setFilePos( m_aReadHandle, osl_Pos_Absolut, nOrigOffset ) != osl_File_E_None )
+    {
+        fprintf( stderr, "could not seek to offset %u\n", nOrigOffset );
+        return false;
+    }
+    void* pBuf = std::malloc( nLen );
+    if( ! pBuf )
+        return false;
+    sal_uInt64 nBytesRead = 0;
+    if( osl_readFile( m_aReadHandle, pBuf, nLen, &nBytesRead ) != osl_File_E_None
+        || nBytesRead != static_cast<sal_uInt64>(nLen) )
+    {
+        fprintf( stderr, "could not read %u bytes\n", nLen );
+        std::free( pBuf );
+        return false;
+    }
+    bool bRet = write( pBuf, nLen );
+    std::free( pBuf );
+    return bRet;
+}
+
+unsigned int FileEmitContext::readOrigBytes( unsigned int nOrigOffset, unsigned int nLen, void* pBuf ) noexcept
+{
+    if( nOrigOffset + nLen > m_nReadLen )
+        return 0;
+
+    if( osl_setFilePos( m_aReadHandle, osl_Pos_Absolut, nOrigOffset ) != osl_File_E_None )
+    {
+        fprintf( stderr, "could not seek to offset %u\n", nOrigOffset );
+        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);
+}
+
+typedef int(*PDFFileHdl)(const char*, const char*, PDFFile*);
+
+static int handleFile( const char* pInFile, const char* pOutFile, const char* pPassword, PDFFileHdl pHdl )
+{
+    int nRet = 0;
+    std::unique_ptr<PDFEntry> pEntry = pdfparse::PDFReader::read( pInFile );
+    if( pEntry )
+    {
+        PDFFile* pPDFFile = dynamic_cast<PDFFile*>(pEntry.get());
+        if( pPDFFile )
+        {
+            fprintf( stdout, "have a %s PDF file\n", pPDFFile->isEncrypted() ? "encrypted" : "unencrypted" );
+            if( pPassword )
+                fprintf( stdout, "password %s\n",
+                         pPDFFile->setupDecryptionData( pPassword ) ? "matches" : "does not match" );
+            nRet = pHdl( pInFile, pOutFile, pPDFFile );
+        }
+        else
+            nRet = 20;
+    }
+    return nRet;
+}
+
+static int write_unzipFile( const char* pInFile, const char* pOutFile, PDFFile* pPDFFile )
+{
+    FileEmitContext aContext( pOutFile, pInFile, pPDFFile );
+    aContext.m_bDecrypt = pPDFFile->isEncrypted();
+    pPDFFile->emit(aContext);
+    return 0;
+}
+
+static int write_addStreamArray( const char* pOutFile, PDFArray* pStreams, PDFFile* pPDFFile, const char* pInFile )
+{
+    int nRet = 0;
+    unsigned int nArrayElements = pStreams->m_aSubElements.size();
+    for( unsigned int i = 0; i < nArrayElements-1 && nRet == 0; i++ )
+    {
+        PDFName* pMimeType = dynamic_cast<PDFName*>(pStreams->m_aSubElements[i].get());
+        PDFObjectRef* pStreamRef = dynamic_cast<PDFObjectRef*>(pStreams->m_aSubElements[i+1].get());
+        if( ! pMimeType )
+            fprintf( stderr, "error: no mimetype element\n" );
+        if( ! pStreamRef )
+            fprintf( stderr, "error: no stream ref element\n" );
+        if( pMimeType && pStreamRef )
+        {
+            fprintf( stdout, "found stream %d %d with mimetype %s\n",
+                     pStreamRef->m_nNumber, pStreamRef->m_nGeneration,
+                     pMimeType->m_aName.getStr() );
+            PDFObject* pObject = pPDFFile->findObject( pStreamRef->m_nNumber, pStreamRef->m_nGeneration );
+            if( pObject )
+            {
+                OString aOutStream = pOutFile +
+                    OString::Concat("_stream_") +
+                    OString::number( sal_Int32(pStreamRef->m_nNumber) ) +
+                    "_" +
+                    OString::number( sal_Int32(pStreamRef->m_nGeneration) );
+                FileEmitContext aContext( aOutStream.getStr(), pInFile, pPDFFile );
+                aContext.m_bDecrypt = pPDFFile->isEncrypted();
+                pObject->writeStream( aContext, pPDFFile );
+            }
+            else
+            {
+                fprintf( stderr, "object not found\n" );
+                nRet = 121;
+            }
+        }
+        else
+            nRet = 120;
+    }
+    return nRet;
+}
+
+static int write_addStreams( const char* pInFile, const char* pOutFile, PDFFile* pPDFFile )
+{
+    // find all trailers
+    int nRet = 0;
+    unsigned int nElements = pPDFFile->m_aSubElements.size();
+    for( unsigned i = 0; i < nElements && nRet == 0; i++ )
+    {
+        PDFTrailer* pTrailer = dynamic_cast<PDFTrailer*>(pPDFFile->m_aSubElements[i].get());
+        if( pTrailer && pTrailer->m_pDict )
+        {
+            // search for AdditionalStreams entry
+            auto add_stream = pTrailer->m_pDict->m_aMap.find( "AdditionalStreams" );
+            if( add_stream != pTrailer->m_pDict->m_aMap.end() )
+            {
+                PDFArray* pStreams = dynamic_cast<PDFArray*>(add_stream->second);
+                if( pStreams )
+                    nRet = write_addStreamArray( pOutFile, pStreams, pPDFFile, pInFile );
+            }
+        }
+    }
+    return nRet;
+}
+
+static int write_fonts( const char* i_pInFile, const char* i_pOutFile, PDFFile* i_pPDFFile )
+{
+    unsigned int nElements = i_pPDFFile->m_aSubElements.size();
+    for (unsigned i = 0; i < nElements; i++)
+    {
+        // search FontDescriptors
+        PDFObject* pObj = dynamic_cast<PDFObject*>(i_pPDFFile->m_aSubElements[i].get());
+        if( ! pObj )
+            continue;
+        PDFDict* pDict = dynamic_cast<PDFDict*>(pObj->m_pObject);
+        if( ! pDict )
+            continue;
+
+        std::unordered_map<OString,PDFEntry*>::iterator map_it =
+                pDict->m_aMap.find( "Type" );
+        if( map_it == pDict->m_aMap.end() )
+            continue;
+
+        PDFName* pName = dynamic_cast<PDFName*>(map_it->second);
+        if( ! pName )
+            continue;
+        if( pName->m_aName != "FontDescriptor" )
+            continue;
+
+        // the font name will be helpful, also there must be one in
+        // a font descriptor
+        map_it = pDict->m_aMap.find( "FontName" );
+        if( map_it == pDict->m_aMap.end() )
+            continue;
+        pName = dynamic_cast<PDFName*>(map_it->second);
+        if( ! pName )
+            continue;
+        OString aFontName( pName->m_aName );
+
+        PDFObjectRef* pStreamRef = nullptr;
+        const char* pFileType = nullptr;
+        // we have a font descriptor, try for a type 1 font
+        map_it = pDict->m_aMap.find( "FontFile" );
+        if( map_it != pDict->m_aMap.end() )
+        {
+            pStreamRef = dynamic_cast<PDFObjectRef*>(map_it->second);
+            if( pStreamRef )
+                pFileType = "pfa";
+        }
+
+        // perhaps it's a truetype file ?
+        if( ! pStreamRef )
+        {
+            map_it  = pDict->m_aMap.find( "FontFile2" );
+            if( map_it != pDict->m_aMap.end() )
+            {
+                pStreamRef = dynamic_cast<PDFObjectRef*>(map_it->second);
+                if( pStreamRef )
+                    pFileType = "ttf";
+            }
+        }
+
+        if( ! pStreamRef )
+            continue;
+
+        PDFObject* pStream = i_pPDFFile->findObject( pStreamRef );
+        if( ! pStream )
+            continue;
+
+        OStringBuffer aOutStream( i_pOutFile );
+        aOutStream.append( "_font_" );
+        aOutStream.append( sal_Int32(pStreamRef->m_nNumber) );
+        aOutStream.append( "_" );
+        aOutStream.append( sal_Int32(pStreamRef->m_nGeneration) );
+        aOutStream.append( "_" );
+        aOutStream.append( aFontName );
+        if( pFileType )
+        {
+            aOutStream.append( "." );
+            aOutStream.append( pFileType );
+        }
+        FileEmitContext aContext( aOutStream.getStr(), i_pInFile, i_pPDFFile );
+        aContext.m_bDecrypt = i_pPDFFile->isEncrypted();
+        pStream->writeStream( aContext, i_pPDFFile );
+    }
+    return 0;
+}
+
+static std::vector< std::pair< sal_Int32, sal_Int32 > > s_aEmitObjects;
+
+static int write_objects( const char* i_pInFile, const char* i_pOutFile, PDFFile* i_pPDFFile )
+{
+    unsigned int nElements = s_aEmitObjects.size();
+    for (unsigned i = 0; i < nElements; i++)
+    {
+        sal_Int32 nObject     = s_aEmitObjects[i].first;
+        sal_Int32 nGeneration = s_aEmitObjects[i].second;
+        PDFObject* pStream = i_pPDFFile->findObject( nObject, nGeneration );
+        if( ! pStream )
+        {
+            fprintf( stderr, "object %d %d not found !\n", static_cast<int>(nObject), static_cast<int>(nGeneration) );
+            continue;
+        }
+
+        OString aOutStream = i_pOutFile +
+            OString::Concat("_stream_") +
+            OString::number( nObject ) +
+            "_"  +
+            OString::number( nGeneration );
+        FileEmitContext aContext( aOutStream.getStr(), i_pInFile, i_pPDFFile );
+        aContext.m_bDecrypt = i_pPDFFile->isEncrypted();
+        pStream->writeStream( aContext, i_pPDFFile );
+    }
+    return 0;
+}
+
+SAL_IMPLEMENT_MAIN_WITH_ARGS( argc, argv )
+{
+    const char* pInFile = nullptr;
+    const char* pOutFile = nullptr;
+    const char* pPassword = nullptr;
+    OStringBuffer aOutFile( 256 );
+    PDFFileHdl aHdl = write_unzipFile;
+
+    for( int nArg = 1; nArg < argc; nArg++ )
+    {
+        if( argv[nArg][0] == '-' )
+        {
+            if( ! rtl_str_compare( "-pw", argv[nArg] ) ||
+                ! rtl_str_compare( "--password" , argv[nArg] ) )
+            {
+                if( nArg == argc-1 )
+                {
+                    fprintf( stderr, "no password given\n" );
+                    return 1;
+                }
+                nArg++;
+                pPassword = argv[nArg];
+            }
+            else if( ! rtl_str_compare( "-h", argv[nArg] ) ||
+                ! rtl_str_compare( "--help", argv[nArg] ) )
+            {
+                printHelp( argv[0] );
+                return 0;
+            }
+            else if( ! rtl_str_compare( "-a", argv[nArg] ) ||
+                ! rtl_str_compare( "--extract-add-streams", argv[nArg] ) )
+            {
+                aHdl = write_addStreams;
+            }
+            else if( ! rtl_str_compare( "-f", argv[nArg] ) ||
+                ! rtl_str_compare( "--extract-fonts", argv[nArg] ) )
+            {
+                aHdl = write_fonts;
+            }
+            else if( ! rtl_str_compare( "-o", argv[nArg] ) ||
+                ! rtl_str_compare( "--extract-objects", argv[nArg] ) )
+            {
+                aHdl = write_objects;
+                nArg++;
+                if( nArg < argc )
+                {
+                    OString aObjs( argv[nArg] );
+                    sal_Int32 nIndex = 0;
+                    while( nIndex != -1 )
+                    {
+                        OString aToken( aObjs.getToken( 0, ',', nIndex ) );
+                        sal_Int32 nObject = 0;
+                        sal_Int32 nGeneration = 0;
+                        sal_Int32 nGenIndex = 0;
+                        nObject = o3tl::toInt32( o3tl::getToken( aToken, 0, ':', nGenIndex ) );
+                        if( nGenIndex != -1 )
+                            nGeneration = o3tl::toInt32( o3tl::getToken(aToken, 0, ':', nGenIndex ));
+                        s_aEmitObjects.push_back( std::pair<sal_Int32,sal_Int32>(nObject,nGeneration) );
+                    }
+                }
+            }
+            else
+            {
+                fprintf( stderr, "unrecognized option \"%s\"\n",
+                         argv[nArg] );
+                printHelp( argv[0] );
+                return 1;
+            }
+        }
+        else if( pInFile == nullptr )
+            pInFile = argv[nArg];
+        else if( pOutFile == nullptr )
+            pOutFile = argv[nArg];
+    }
+    if( ! pInFile )
+    {
+        fprintf( stderr, "no input file given\n" );
+        return 10;
+    }
+    if( ! pOutFile )
+    {
+        OString aFile( pInFile );
+        if( aFile.getLength() > 0 )
+        {
+            if( aFile.getLength() > 4 )
+            {
+                if( aFile.matchIgnoreAsciiCase( ".pdf", aFile.getLength()-4 ) )
+                    aOutFile.append( pInFile, aFile.getLength() - 4 );
+                else
+                    aOutFile.append( aFile );
+            }
+            aOutFile.append( "_unzip.pdf" );
+            pOutFile = aOutFile.getStr();
+        }
+        else
+        {
+            fprintf( stderr, "no output file given\n" );
+            return 11;
+        }
+    }
+
+    return handleFile( pInFile, pOutFile, pPassword, aHdl );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */