office-gobmx/vcl/generic/fontmanager/helper.cxx
Caolán McNamara f5d33e5e70 Resolves: coverity#706171 Untrusted value as argument
limit nBytesToRead to remaining size of file

also zero last byte of alloced block, seeing as the
block is size+1 and we only read size into it

Change-Id: I2729ec7bb9de20731531f32da864c572fa83ce58
2014-07-21 09:13:43 +01:00

390 lines
13 KiB
C++

/* -*- 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 <config_folders.h>
#include <cstring>
#include <sys/stat.h>
#include <unistd.h>
#include <limits.h>
#include <osl/file.hxx>
#include <osl/process.h>
#include <osl/thread.h>
#include <rtl/bootstrap.hxx>
#include <rtl/ustring.hxx>
#include <tools/urlobj.hxx>
#include "vcl/helper.hxx"
#include "vcl/ppdparser.hxx"
#include <boost/scoped_array.hpp>
using ::rtl::Bootstrap;
namespace psp {
OUString getOfficePath( enum whichOfficePath ePath )
{
static OUString aInstallationRootPath;
static OUString aUserPath;
static OUString aConfigPath;
static OUString aEmpty;
static bool bOnce = false;
if( ! bOnce )
{
bOnce = true;
OUString aIni;
Bootstrap::get( "BRAND_BASE_DIR", aInstallationRootPath );
aIni = aInstallationRootPath + "/" LIBO_ETC_FOLDER "/" SAL_CONFIGFILE( "bootstrap" );
Bootstrap aBootstrap( aIni );
aBootstrap.getFrom( "CustomDataUrl", aConfigPath );
aBootstrap.getFrom( "UserInstallation", aUserPath );
OUString aUPath = aUserPath;
if( aConfigPath.startsWith( "file://" ) )
{
OUString aSysPath;
if( osl_getSystemPathFromFileURL( aConfigPath.pData, &aSysPath.pData ) == osl_File_E_None )
aConfigPath = aSysPath;
}
if( aInstallationRootPath.startsWith( "file://" ) )
{
OUString aSysPath;
if( osl_getSystemPathFromFileURL( aInstallationRootPath.pData, &aSysPath.pData ) == osl_File_E_None )
aInstallationRootPath = aSysPath;
}
if( aUserPath.startsWith( "file://" ) )
{
OUString aSysPath;
if( osl_getSystemPathFromFileURL( aUserPath.pData, &aSysPath.pData ) == osl_File_E_None )
aUserPath = aSysPath;
}
// ensure user path exists
aUPath += "/user/psprint";
#if OSL_DEBUG_LEVEL > 1
oslFileError eErr =
#endif
osl_createDirectoryPath( aUPath.pData, NULL, NULL );
#if OSL_DEBUG_LEVEL > 1
fprintf( stderr, "try to create \"%s\" = %d\n", OUStringToOString( aUPath, RTL_TEXTENCODING_UTF8 ).getStr(), eErr );
#endif
}
switch( ePath )
{
case ConfigPath: return aConfigPath;
case InstallationRootPath: return aInstallationRootPath;
case UserPath: return aUserPath;
}
return aEmpty;
}
static OString getEnvironmentPath( const char* pKey )
{
OString aPath;
const char* pValue = getenv( pKey );
if( pValue && *pValue )
{
aPath = OString( pValue );
}
return aPath;
}
} // namespace psp
void psp::getPrinterPathList( std::list< OUString >& rPathList, const char* pSubDir )
{
rPathList.clear();
rtl_TextEncoding aEncoding = osl_getThreadTextEncoding();
OUStringBuffer aPathBuffer( 256 );
// append net path
aPathBuffer.append( getOfficePath( psp::InstallationRootPath ) );
if( !aPathBuffer.isEmpty() )
{
aPathBuffer.appendAscii( "/" LIBO_SHARE_FOLDER "/psprint" );
if( pSubDir )
{
aPathBuffer.append( '/' );
aPathBuffer.appendAscii( pSubDir );
}
rPathList.push_back( aPathBuffer.makeStringAndClear() );
}
// append user path
aPathBuffer.append( getOfficePath( psp::UserPath ) );
if( !aPathBuffer.isEmpty() )
{
aPathBuffer.appendAscii( "/user/psprint" );
if( pSubDir )
{
aPathBuffer.append( '/' );
aPathBuffer.appendAscii( pSubDir );
}
rPathList.push_back( aPathBuffer.makeStringAndClear() );
}
OString aPath( getEnvironmentPath("SAL_PSPRINT") );
sal_Int32 nIndex = 0;
do
{
OString aDir( aPath.getToken( 0, ':', nIndex ) );
if( aDir.isEmpty() )
continue;
if( pSubDir )
{
aDir += "/";
aDir += pSubDir;
}
struct stat aStat;
if( stat( aDir.getStr(), &aStat ) || ! S_ISDIR( aStat.st_mode ) )
continue;
rPathList.push_back( OStringToOUString( aDir, aEncoding ) );
} while( nIndex != -1 );
#ifdef SYSTEM_PPD_DIR
if( pSubDir && rtl_str_compare( pSubDir, PRINTER_PPDDIR ) == 0 )
{
rPathList.push_back( OStringToOUString( OString( SYSTEM_PPD_DIR ), RTL_TEXTENCODING_UTF8 ) );
}
#endif
if( rPathList.empty() )
{
// last resort: next to program file (mainly for setup)
OUString aExe;
if( osl_getExecutableFile( &aExe.pData ) == osl_Process_E_None )
{
INetURLObject aDir( aExe );
aDir.removeSegment();
aExe = aDir.GetMainURL( INetURLObject::NO_DECODE );
OUString aSysPath;
if( osl_getSystemPathFromFileURL( aExe.pData, &aSysPath.pData ) == osl_File_E_None )
{
rPathList.push_back( aSysPath );
}
}
}
}
OUString psp::getFontPath()
{
static OUString aPath;
if (aPath.isEmpty())
{
OUStringBuffer aPathBuffer( 512 );
OUString aConfigPath( getOfficePath( psp::ConfigPath ) );
OUString aInstallationRootPath( getOfficePath( psp::InstallationRootPath ) );
OUString aUserPath( getOfficePath( psp::UserPath ) );
if( !aConfigPath.isEmpty() )
{
// #i53530# Path from CustomDataUrl will completely
// replace net and user paths if the path exists
aPathBuffer.append(aConfigPath);
aPathBuffer.appendAscii("/" LIBO_SHARE_FOLDER "/fonts");
// check existence of config path
struct stat aStat;
if( 0 != stat( OUStringToOString( aPathBuffer.makeStringAndClear(), osl_getThreadTextEncoding() ).getStr(), &aStat )
|| ! S_ISDIR( aStat.st_mode ) )
aConfigPath = OUString();
else
{
aPathBuffer.append(aConfigPath);
aPathBuffer.appendAscii("/" LIBO_SHARE_FOLDER "/fonts");
}
}
if( aConfigPath.isEmpty() )
{
if( !aInstallationRootPath.isEmpty() )
{
aPathBuffer.append( aInstallationRootPath );
aPathBuffer.appendAscii( "/" LIBO_SHARE_FOLDER "/fonts/truetype;");
aPathBuffer.append( aInstallationRootPath );
aPathBuffer.appendAscii( "/" LIBO_SHARE_FOLDER "/fonts/type1;" );
}
if( !aUserPath.isEmpty() )
{
aPathBuffer.append( aUserPath );
aPathBuffer.appendAscii( "/user/fonts" );
}
}
aPath = aPathBuffer.makeStringAndClear();
#if OSL_DEBUG_LEVEL > 1
fprintf( stderr, "initializing font path to \"%s\"\n", OUStringToOString( aPath, RTL_TEXTENCODING_ISO_8859_1 ).getStr() );
#endif
}
return aPath;
}
bool psp::convertPfbToPfa( ::osl::File& rInFile, ::osl::File& rOutFile )
{
static const unsigned char hexDigits[] =
{
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
bool bSuccess = true;
bool bEof = false;
unsigned char buffer[256];
sal_uInt64 nSize(0);
rInFile.getSize(nSize);
while( bSuccess && ! bEof )
{
sal_uInt64 nRead;
// read leading bytes
bEof = ((0 != rInFile.read( buffer, 6, nRead)) || (nRead != 6));
if( bEof )
break;
unsigned int nType = buffer[ 1 ];
unsigned int nBytesToRead = buffer[2] | buffer[3] << 8 | buffer[4] << 16 | buffer[5] << 24;
if( buffer[0] != 0x80 ) // test for pfb magic number
{
// this might be a pfa font already
if( ! rInFile.read( buffer+6, 9, nRead ) && nRead == 9 &&
( ! std::strncmp( (char*)buffer, "%!FontType1-", 12 ) ||
! std::strncmp( (char*)buffer, "%!PS-AdobeFont-", 15 ) ) )
{
sal_uInt64 nWrite = 0;
if( rOutFile.write( buffer, 15, nWrite ) || nWrite != 15 )
bSuccess = false;
while( bSuccess &&
! rInFile.read( buffer, sizeof( buffer ), nRead ) &&
nRead != 0 )
{
if( rOutFile.write( buffer, nRead, nWrite ) ||
nWrite != nRead )
bSuccess = false;
}
bEof = true;
}
else
bSuccess = false;
}
else if( nType == 1 || nType == 2 )
{
sal_uInt64 nOrgPos(0);
rInFile.getPos(nOrgPos);
nBytesToRead = std::min<sal_uInt64>(nBytesToRead, nSize - nOrgPos);
boost::scoped_array<unsigned char> pBuffer(new unsigned char[nBytesToRead+1]);
pBuffer[nBytesToRead] = 0;
if( ! rInFile.read( pBuffer.get(), nBytesToRead, nRead ) && nRead == nBytesToRead )
{
if( nType == 1 )
{
// ascii data, convert dos lineends( \r\n ) and
// m_ac lineends( \r ) to \n
boost::scoped_array<unsigned char> pWriteBuffer(new unsigned char[ nBytesToRead ]);
unsigned int nBytesToWrite = 0;
for( unsigned int i = 0; i < nBytesToRead; i++ )
{
if( pBuffer[i] != '\r' )
pWriteBuffer[ nBytesToWrite++ ] = pBuffer[i];
else if( pBuffer[ i+1 ] == '\n' )
{
i++;
pWriteBuffer[ nBytesToWrite++ ] = '\n';
}
else
pWriteBuffer[ nBytesToWrite++ ] = '\n';
}
if( rOutFile.write( pWriteBuffer.get(), nBytesToWrite, nRead ) || nRead != nBytesToWrite )
bSuccess = false;
}
else
{
// binary data
unsigned int nBuffer = 0;
for( unsigned int i = 0; i < nBytesToRead && bSuccess; i++ )
{
buffer[ nBuffer++ ] = hexDigits[ pBuffer[ i ] >> 4 ];
buffer[ nBuffer++ ] = hexDigits[ pBuffer[ i ] & 15 ];
if( nBuffer >= 80 )
{
buffer[ nBuffer++ ] = '\n';
if( rOutFile.write( buffer, nBuffer, nRead ) || nRead != nBuffer )
bSuccess = false;
nBuffer = 0;
}
}
if( nBuffer > 0 && bSuccess )
{
buffer[ nBuffer++ ] = '\n';
if( rOutFile.write( buffer, nBuffer, nRead ) || nRead != nBuffer )
bSuccess = false;
}
}
}
else
bSuccess = false;
}
else if( nType == 3 )
bEof = true;
else
bSuccess = false;
}
return bSuccess;
}
void psp::normPath( OString& rPath )
{
char buf[PATH_MAX];
// double slashes and slash at end are probably
// removed by realpath anyway, but since this runs
// on many different platforms let's play it safe
OString aPath = rPath.replaceAll("//", "/");
if( aPath.endsWith("/") )
aPath = aPath.copy(0, aPath.getLength()-1);
if( ( aPath.indexOf("./") != -1 ||
aPath.indexOf( '~' ) != -1 )
&& realpath( aPath.getStr(), buf ) )
{
rPath = buf;
}
else
{
rPath = aPath;
}
}
void psp::splitPath( OString& rPath, OString& rDir, OString& rBase )
{
normPath( rPath );
sal_Int32 nIndex = rPath.lastIndexOf( '/' );
if( nIndex > 0 )
rDir = rPath.copy( 0, nIndex );
else if( nIndex == 0 ) // root dir
rDir = rPath.copy( 0, 1 );
if( rPath.getLength() > nIndex+1 )
rBase = rPath.copy( nIndex+1 );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */