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CWE-ou-minkata/Sources/Plasma/PubUtilLib/plFile/plFileUtils.cpp

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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
/////////////////////////////////////////////////////////////////////////////
//
// plFileUtils - Namespace of fun file utilities
//
//// History /////////////////////////////////////////////////////////////////
//
// 5.7.2002 mcn - Created
// 4.8.2003 chip - added FileCopy and FileMove for Unix
//
//////////////////////////////////////////////////////////////////////////////
#include "hsTypes.h"
#include "hsStlUtils.h"
#include "plFileUtils.h"
#include "hsFiles.h"
#include "hsStringTokenizer.h"
#include "hsWindows.h"
#include "plUnifiedTime/plUnifiedTime.h"
#include "plSecureStream.h" // for the default key
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#if HS_BUILD_FOR_WIN32
#include <direct.h>
#include <io.h>
#define mkdir _mkdir
#define chdir _chdir
#define chmod _chmod
#define rmdir _rmdir
#define unlink _unlink
#endif
#if HS_BUILD_FOR_UNIX
#include <unistd.h>
#include <utime.h>
#endif
//// CreateDir ///////////////////////////////////////////////////////////////
// Creates the directory specified. Returns false if unsuccessful or
// directory already exists
hsBool plFileUtils::CreateDir( const char *path )
{
// Create our directory
#if HS_BUILD_FOR_WIN32
return ( mkdir( path ) == 0 ) ? true : ( errno==EEXIST );
#elif HS_BUILD_FOR_UNIX
return ( mkdir( path, 0777 ) == 0 ) ? true : ( errno==EEXIST );
#endif
}
hsBool plFileUtils::CreateDir( const wchar *path )
{
// Create our directory
#if HS_BUILD_FOR_WIN32
return ( _wmkdir( path ) == 0 ) ? true : ( errno==EEXIST );
#elif HS_BUILD_FOR_UNIX
return ( mkdir( path, 0777 ) == 0 ) ? true : ( errno==EEXIST );
#endif
}
hsBool plFileUtils::RemoveDir(const char* path)
{
return (rmdir(path) == 0);
}
hsBool plFileUtils::RemoveDirTree(const char * path)
{
hsFolderIterator it(path);
while (it.NextFile())
{
const char * fname = it.GetFileName();
if ( fname[0]=='.' )
continue;
char pathAndName[128];
it.GetPathAndName(pathAndName);
if ( it.IsDirectory() )
{
RemoveDirTree( pathAndName );
RemoveDir( pathAndName );
}
else
{
RemoveFile( pathAndName );
}
}
RemoveDir( path );
return 1;
}
//// RemoveFile ////////////////////////////////////////////////////////////
bool plFileUtils::RemoveFile(const char* filename, bool delReadOnly)
{
if (delReadOnly)
chmod(filename, S_IWRITE);
return (unlink(filename) == 0);
}
bool plFileUtils::RemoveFile(const wchar* filename, bool delReadOnly)
{
if (delReadOnly)
_wchmod(filename, S_IWRITE);
return (_wunlink(filename) == 0);
}
bool plFileUtils::FileCopy(const char* existingFile, const char* newFile)
{
wchar* wExisting = hsStringToWString(existingFile);
wchar* wNew = hsStringToWString(newFile);
bool ret = FileCopy(wExisting, wNew);
delete [] wExisting;
delete [] wNew;
return ret;
}
bool plFileUtils::FileCopy(const wchar* existingFile, const wchar* newFile)
{
#if HS_BUILD_FOR_WIN32
return (::CopyFileW(existingFile, newFile, FALSE) != 0);
#elif HS_BUILD_FOR_UNIX
char data[1500];
FILE* fp = fopen(existingFile, "rb");
FILE* fw = fopen(newFile, "w");
int num = 0;
bool retVal = true;
if (fp && fw){
while(!feof(fp)){
num = fread(data, sizeof( char ), 1500, fp);
if( ferror( fp ) ) {
retVal = false;
break;
}
fwrite(data, sizeof( char ), num, fw);
}
fclose(fp);
fclose(fw);
} else {
retVal = false;
}
return retVal;
#else
hsAssert(0, "Not implemented");
return false;
#endif
}
bool plFileUtils::FileMove(const char* existingFile, const char* newFile)
{
#if HS_BUILD_FOR_WIN32
return (::MoveFile(existingFile, newFile) != 0);
#elif HS_BUILD_FOR_UNIX
FileCopy(existingFile,newFile);
return( RemoveFile( existingFile )==0);
#else
hsAssert(0, "Not implemented");
return false;
#endif
}
bool plFileUtils::FileMove(const wchar* existingFile, const wchar* newFile)
{
#if HS_BUILD_FOR_WIN32
return (::MoveFileW(existingFile, newFile) != 0);
#elif HS_BUILD_FOR_UNIX
FileCopy(existingFile,newFile);
return( RemoveFile( existingFile )==0);
#else
hsAssert(0, "Not implemented");
return false;
#endif
}
bool plFileUtils::FileExists(const wchar* file)
{
FILE* fp = _wfopen(file, L"rb");
bool retVal = (fp != nil);
if (fp)
fclose(fp);
return retVal;
}
bool plFileUtils::FileExists(const char* file)
{
FILE* fp = fopen(file, "rb");
bool retVal = (fp != nil);
if (fp)
fclose(fp);
return retVal;
}
//// EnsureFilePathExists ////////////////////////////////////////////////////
// Given a filename with path, makes sure the file's path exists
hsBool plFileUtils::EnsureFilePathExists( const char *filename )
{
wchar* wFilename = hsStringToWString(filename);
hsBool ret = EnsureFilePathExists(wFilename);
delete [] wFilename;
return ret;
}
hsBool plFileUtils::EnsureFilePathExists( const wchar *filename )
{
hsWStringTokenizer izer( filename, L"\\/" );
hsBool lastWorked = false;
wchar token[ kFolderIterator_MaxPath ];
while( izer.Next( token, arrsize( token ) ) && izer.HasMoreTokens() )
{
// Want the full path from the start of the string
lastWorked = CreateDir( izer.fString );
izer.RestoreLastTerminator();
}
return lastWorked;
}
//// GetFileTimes ////////////////////////////////////////////////////////////
// Gets the creation and modification dates of the file specified. Returns
// false if unsuccessful
hsBool plFileUtils::GetFileTimes( const char *path, plUnifiedTime *createTimeOut, plUnifiedTime *modifyTimeOut )
{
struct stat fileInfo;
int result = stat( path, &fileInfo );
if( result != 0 )
return false;
if( createTimeOut != nil )
*createTimeOut = plUnifiedTime( fileInfo.st_ctime );
if( modifyTimeOut != nil )
*modifyTimeOut = plUnifiedTime( fileInfo.st_mtime );
return true;
}
plFileUtils::Modify plFileUtils::CompareModifyTimes(const char* file1, const char* file2)
{
plUnifiedTime modTime1, modTime2;
if (GetFileTimes(file1, nil, &modTime1) &&
GetFileTimes(file2, nil, &modTime2))
{
double diff = plUnifiedTime::GetTimeDifference(modTime1, modTime2);
if (hsABS(diff) <= 2)
return kFilesEqual;
else if (diff > 0)
return kFile1Newer;
else
return kFile2Newer;
}
return kFileError;
}
bool plFileUtils::SetModifyTime( const char * filename, const plUnifiedTime & timestamp )
{
#ifdef HS_BUILD_FOR_WIN32
HANDLE hFile = CreateFile(filename,
GENERIC_WRITE,FILE_SHARE_READ|FILE_SHARE_WRITE,
nil,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,nil);
if (hFile==INVALID_HANDLE_VALUE)
return false;
SYSTEMTIME systime;
systime.wDay = timestamp.GetDay();
systime.wDayOfWeek = timestamp.GetDayOfWeek();
systime.wHour = timestamp.GetHour();
systime.wMilliseconds = 0;
systime.wMinute = timestamp.GetMinute();
systime.wMonth = timestamp.GetMonth();
systime.wSecond = timestamp.GetSecond();
systime.wYear = timestamp.GetYear();
FILETIME localFileTime, filetime;
SystemTimeToFileTime(&systime,&localFileTime);
LocalFileTimeToFileTime(&localFileTime,&filetime);
SetFileTime(hFile,nil,nil,&filetime);
CloseHandle(hFile);
return true;
#elif HS_BUILD_FOR_UNIX
struct stat sbuf;
int result = stat( filename, &sbuf );
if( result )
return false;
struct utimbuf utb;
utb.actime = sbuf.st_atime;
utb.modtime = timestamp.GetSecs();
result = utime( filename, &utb );
if( result )
return false;
return true;
#endif
}
//// StripPath ///////////////////////////////////////////////////////////////
const char* plFileUtils::GetFileName(const char* path)
{
const char* c = strrchr(path, '/');
if (c == nil)
c = strrchr(path, '\\');
if (c == nil)
c = path;
else
c++;
return c;
}
const wchar* plFileUtils::GetFileName(const wchar* path)
{
const wchar* c = wcsrchr(path, L'/');
if (c == nil)
c = wcsrchr(path, L'\\');
if (c == nil)
c = path;
else
c++;
return c;
}
void plFileUtils::StripFile(char* pathAndName)
{
char* fileName = (char*)GetFileName(pathAndName);
if (fileName != pathAndName)
*fileName = '\0';
}
void plFileUtils::StripFile(wchar* pathAndName)
{
wchar* fileName = (wchar*)GetFileName(pathAndName);
if (fileName != pathAndName)
*fileName = L'\0';
}
void plFileUtils::StripExt(char* fileName)
{
char* ext = (char*)GetFileExt(fileName);
if (ext)
*(ext-1) = '\0';
}
const char* plFileUtils::GetFileExt(const char* pathAndName)
{
const char* fileName = GetFileName(pathAndName);
if (fileName)
{
const char* ext = strrchr(fileName, '.');
if (ext)
return ext+1;
}
return nil;
}
const wchar* plFileUtils::GetFileExt(const wchar* pathAndName)
{
const wchar* fileName = GetFileName(pathAndName);
if (fileName)
{
const wchar* ext = wcsrchr(fileName, L'.');
if (ext)
return ext+1;
}
return nil;
}
void plFileUtils::AddSlash(char* path)
{
char lastChar = path[strlen(path)-1];
if (lastChar != '\\' && lastChar != '/')
strcat(path, "\\");
}
void plFileUtils::ConcatFileName(char* path, const char* fileName)
{
AddSlash(path);
strcat(path, fileName);
}
//// GetFileSize /////////////////////////////////////////////////////////////
UInt32 plFileUtils::GetFileSize( const char *path )
{
wchar* wPath = hsStringToWString(path);
UInt32 ret = GetFileSize(wPath);
delete [] wPath;
return ret;
}
UInt32 plFileUtils::GetFileSize( const wchar *path )
{
UInt32 len = 0;
hsUNIXStream str;
if (str.Open(path, L"rb"))
{
len = str.GetEOF();
str.Close();
}
return len;
}
//// GetSecureEncryptionKey //////////////////////////////////////////////////
bool plFileUtils::GetSecureEncryptionKey(const char* filename, UInt32* key, unsigned length)
{
wchar* wFilename = hsStringToWString(filename);
bool ret = GetSecureEncryptionKey(wFilename, key, length);
delete [] wFilename;
return ret;
}
bool plFileUtils::GetSecureEncryptionKey(const wchar* filename, UInt32* key, unsigned length)
{
// looks for an encryption key file in the same directory, and reads it
std::wstring sFilename = filename;
// grab parent directory
unsigned loc = sFilename.rfind(L"\\");
if (loc == std::wstring::npos)
loc = sFilename.rfind(L"/");
std::wstring sDir;
if (loc != std::wstring::npos)
sDir = sFilename.substr(0, loc);
else // no directory
sDir = L"./";
if ((sDir[sDir.length()-1] != L'/') && (sDir[sDir.length()-1] != L'\\'))
sDir += L'/'; // add the slash, if it doesn't has one
// now add the key filename
std::wstring keyFile = sDir + kWKeyFilename;
if (FileExists(keyFile.c_str()))
{
// file exists, read from it
hsUNIXStream file;
file.Open(keyFile.c_str(), L"rb");
unsigned bytesToRead = length * sizeof(UInt32);
byte* buffer = (byte*)ALLOC(bytesToRead);
unsigned bytesRead = file.Read(bytesToRead, buffer);
file.Close();
unsigned memSize = min(bytesToRead, bytesRead);
memcpy(key, buffer, memSize);
FREE(buffer);
return true;
}
else
{
// file doesn't exist, use default key
unsigned memSize = min(length, arrsize(plSecureStream::kDefaultKey));
memSize *= sizeof(UInt32);
memcpy(key, plSecureStream::kDefaultKey, memSize);
return false;
}
}