sl@0: /*
sl@0: * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: #include <fstream>
sl@0: #include "utils.h"
sl@0: #include "logger.h"
sl@0: 
sl@0: #ifndef __LINUX__
sl@0: #include <windows.h>
sl@0: #endif
sl@0: 
sl@0: typedef unsigned char TUint8;
sl@0: typedef unsigned int TUint;
sl@0: 
sl@0: #ifdef __LINUX__
sl@0: void OpenUtf8FStreamForRead(std::fstream &aFStream, const char *aUtf8FileName)
sl@0: {
sl@0: 	aFStream.open(aUtf8FileName, std::ios_base::binary | std::ios_base::in);
sl@0: }
sl@0: 
sl@0: void OpenUtf8FStreamForWrite(std::fstream &aFStream, const char *aUtf8FileName)
sl@0: {
sl@0: 	aFStream.open(aUtf8FileName, std::ios_base::binary | std::ios_base::trunc | std::ios_base::out);
sl@0: }
sl@0: 
sl@0: #else
sl@0: 
sl@0: WCHAR *WindowsUtf8ToUtf16(const char *aUtf8)
sl@0: {
sl@0: 	int utf8Len = strlen(aUtf8) + 1; // We want to copy the terminator to the new string
sl@0: 	int utf16Space = MultiByteToWideChar(CP_UTF8, 0, aUtf8, utf8Len, 0, 0);
sl@0: 	if(utf16Space <= 0)
sl@0: 		{
sl@0: 		dbg << Log::Indent() << "Failed to convert UTF-8 '" << aUtf8 << "' to UTF16" << Log::Endl();
sl@0: 		FatalError();
sl@0: 		return 0;
sl@0: 		}
sl@0: 	// prog << Log::Indent() << "utf16Space " << utf16Space << Log::Endl();
sl@0: 	WCHAR *utf16 = new WCHAR[utf16Space];
sl@0: 	(void) MultiByteToWideChar(CP_UTF8, 0, aUtf8, utf8Len, utf16, utf16Space);
sl@0: #if 0
sl@0: 	prog << Log::Indent() << "Raw UTF16 name is (chars " << utf16Space << ")" << Log::Endl();
sl@0: 	for(int i=0; i<utf16Space*2; ++i)
sl@0: 		{
sl@0: 		prog << TUint(((TUint8 *)utf16)[i]) << Log::Endl();
sl@0: 		}
sl@0: #endif
sl@0: 	return utf16;
sl@0: }
sl@0: 
sl@0: CHAR *WindowsUtf16ToUtf8(const WCHAR *aUtf16)
sl@0: {
sl@0: 	int utf16Len = wcslen(aUtf16) + 1; // We want to copy the terminator to the new string
sl@0: 	int utf8Space = WideCharToMultiByte(CP_UTF8, 0, aUtf16, utf16Len, 0, 0, 0, 0);
sl@0: 	if(utf8Space <= 0)
sl@0: 		{
sl@0: 		dbg << Log::Indent() << "Failed to convert UTF16 string to UTF8" << Log::Endl();
sl@0: 		FatalError();
sl@0: 		return 0;
sl@0: 		}
sl@0: 	//prog << Log::Indent() << "utf8Space " << utf8Space << Log::Endl();
sl@0: 	CHAR *utf8 = new CHAR[utf8Space];
sl@0: 	(void) WideCharToMultiByte(CP_UTF8, 0, aUtf16, utf16Len, utf8, utf8Space, 0, 0);
sl@0: 
sl@0: #if 0
sl@0: 	prog << Log::Indent() << "Raw UTF8 name is (chars " << utf8Space << ")" << Log::Endl();
sl@0: 	for(int i=0; i<utf8Space; ++i)
sl@0: 		{
sl@0: 		prog << TUint(((TUint8 *)utf8)[i]) << Log::Endl();
sl@0: 		}
sl@0: #endif
sl@0: 	return utf8;
sl@0: }
sl@0: 
sl@0: WCHAR *WindowsRetrieveDosName(const WCHAR *aLongName)
sl@0: {
sl@0: 	// Convert to a short DOS file name. File MUST already exist!
sl@0: 	// len will be space required for string and terminator
sl@0: 	DWORD len = GetShortPathNameW((WCHAR *)aLongName, 0, 0);
sl@0: 	if( len <= 0 )
sl@0: 		{
sl@0: 		prog << Log::Indent() << "Failed to find existing file and retrieve short name" << Log::Endl();
sl@0: 		return 0;
sl@0: 		}
sl@0: 	
sl@0: 	//prog << Log::Indent() << "space required for short name is " << len << Log::Endl();
sl@0: 	WCHAR *shortName = new WCHAR[len];
sl@0: 	(void) GetShortPathNameW(aLongName, shortName, len);
sl@0: 	return shortName;
sl@0: }
sl@0: 
sl@0: void OpenUtf8FStreamForRead(std::fstream &aFStream, const char *aUtf8FileName)
sl@0: {
sl@0: 	// Unfortunately the windows C++ STL library will not open files specified via a UTF-8 filename.
sl@0: 	// The workaround is to convert the UTF-8 name to the short DOS compatible name and open that instead
sl@0: 
sl@0: 	// First convert the UTF-8 name to UTF-16 for use with the windows APIs
sl@0: 	WCHAR *utf16Name = WindowsUtf8ToUtf16(aUtf8FileName);
sl@0: 
sl@0: 	// Obtain short DOS compatible name for file
sl@0: 	WCHAR *utf16NameDos = WindowsRetrieveDosName(utf16Name);
sl@0: 	if(utf16NameDos == 0)
sl@0: 		{
sl@0: 		aFStream.setstate(std::ios_base::badbit);
sl@0: 		delete [] utf16Name;
sl@0: 		return;
sl@0: 		}
sl@0: 
sl@0: 	char *utf8NameDos = WindowsUtf16ToUtf8(utf16NameDos);
sl@0: 
sl@0: 	aFStream.open(utf8NameDos, std::ios_base::binary | std::ios_base::in);
sl@0: 
sl@0: 	delete [] utf8NameDos;
sl@0: 	delete [] utf16NameDos;
sl@0: 	delete [] utf16Name;
sl@0: 	return;
sl@0: }
sl@0: 
sl@0: void OpenUtf8FStreamForWrite(std::fstream &aFStream, const char *aUtf8FileName)
sl@0: {
sl@0: 	// Unfortunately the windows C++ STL library will not open files specified via a UTF-8 filename.
sl@0: 	// The workaround is to make sure the file already exists and then convert the UTF-8 name to the short DOS compatible name 
sl@0: 	// and open that instead
sl@0: 
sl@0: 	// First convert the UTF-8 name to UTF-16 for use with the windows APIs
sl@0: 	WCHAR *utf16Name = WindowsUtf8ToUtf16(aUtf8FileName);
sl@0: 
sl@0: 	// Make sure the file exists
sl@0: 	HANDLE fh = CreateFileW((WCHAR *)utf16Name, GENERIC_WRITE, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, 0,  CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0 );
sl@0: 	if(fh == INVALID_HANDLE_VALUE)
sl@0: 		{
sl@0: 		dbg << Log::Indent() << "Failed to create file '" << aUtf8FileName << "'" << Log::Endl();
sl@0: 		aFStream.setstate(std::ios_base::badbit);
sl@0: 		delete [] utf16Name;
sl@0: 		return;
sl@0: 		}
sl@0: 	// Close handle
sl@0: 	CloseHandle(fh);
sl@0: 
sl@0: 
sl@0: 	// Obtain short DOS compatible name for file
sl@0: 	WCHAR *utf16NameDos = WindowsRetrieveDosName(utf16Name);
sl@0: 	if(utf16NameDos == 0)
sl@0: 		{
sl@0: 		aFStream.setstate(std::ios_base::badbit);
sl@0: 		delete [] utf16Name;
sl@0: 		return;
sl@0: 		}
sl@0: 
sl@0: 	char *utf8NameDos = WindowsUtf16ToUtf8(utf16NameDos);
sl@0: 
sl@0: 	aFStream.open(utf8NameDos, std::ios_base::binary | std::ios_base::trunc | std::ios_base::out);
sl@0: 
sl@0: 	delete [] utf8NameDos;
sl@0: 	delete [] utf16NameDos;
sl@0: 	delete [] utf16Name;
sl@0: 	return;
sl@0: }
sl@0: #endif
sl@0: 
sl@0: // End of file