mirror of
https://github.com/Team-Resurgent/XBMC4Xbox.git
synced 2026-08-15 11:18:13 -07:00
Rocky5
921f9fe9f8
If ever adding the XBMC4Xbox source to GitHub use "git add -f -A" or it wont add all the files.
328 lines
9.5 KiB
C++
328 lines
9.5 KiB
C++
/*
|
|
* XBMC Media Center
|
|
* Copyright (c) 2002 Frodo
|
|
* Portions Copyright (c) by the authors of ffmpeg and xvid
|
|
*
|
|
* 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 2 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, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#include "system.h"
|
|
#include "utils/log.h"
|
|
#include "Fat32FileSystem.h"
|
|
#include "Fat32Device.h"
|
|
#include "utils/MemoryUnitManager.h"
|
|
#include "FileItem.h"
|
|
#include "CharsetConverter.h"
|
|
|
|
namespace XFILE
|
|
{
|
|
|
|
CFat32FileSystem::CFat32FileSystem(unsigned char unit) : IFileSystem(unit)
|
|
{
|
|
m_opened = CLOSED;
|
|
}
|
|
|
|
bool CFat32FileSystem::Open(const CStdString &file)
|
|
{
|
|
CFat32Device *device = (CFat32Device *)g_memoryUnitManager.GetDevice(m_unit);
|
|
if (!device) return false;
|
|
// convert long path to short path
|
|
CStdString shortPath;
|
|
if(!GetShortFilePath(file, shortPath))
|
|
return false;
|
|
|
|
BYTE sector[FAT_PAGE_SIZE];
|
|
if (DFS_OK != DFS_OpenFile(device->GetVolume(), (uint8_t*)shortPath.c_str(), DFS_READ, sector, &m_file))
|
|
{
|
|
CLog::Log(LOGDEBUG, __FUNCTION__" Error opening file %s", file.c_str());
|
|
return false;
|
|
}
|
|
m_opened = OPEN_FOR_READ;
|
|
return true;
|
|
}
|
|
|
|
bool CFat32FileSystem::OpenForWrite(const CStdString &file, bool overWrite)
|
|
{
|
|
CFat32Device *device = (CFat32Device *)g_memoryUnitManager.GetDevice(m_unit);
|
|
if (!device) return false;
|
|
|
|
if (overWrite)
|
|
Delete(file);
|
|
BYTE sector[FAT_PAGE_SIZE];
|
|
if (DFS_OK != DFS_OpenFile(device->GetVolume(), (uint8_t*)file.c_str(), DFS_READ | DFS_WRITE, sector, &m_file))
|
|
{
|
|
CLog::Log(LOGDEBUG, __FUNCTION__" Error opening file %s", file.c_str());
|
|
return false;
|
|
}
|
|
m_opened = OPEN_FOR_WRITE;
|
|
return true;
|
|
}
|
|
|
|
void CFat32FileSystem::Close()
|
|
{
|
|
#ifdef FAT32_ALLOW_WRITING
|
|
if (m_opened == OPEN_FOR_WRITE)
|
|
{ // flush our caches
|
|
CFat32Device *device = (CFat32Device *)g_memoryUnitManager.GetDevice(m_unit);
|
|
if (!device) return;
|
|
device->FlushWriteCache();
|
|
}
|
|
#endif
|
|
m_opened = CLOSED;
|
|
}
|
|
|
|
unsigned int CFat32FileSystem::Read(void *buffer, __int64 size)
|
|
{
|
|
if (m_opened == CLOSED) return 0;
|
|
BYTE sector[FAT_PAGE_SIZE];
|
|
unsigned int amountRead = 0;
|
|
if (DFS_OK != DFS_ReadFile(&m_file, sector, (unsigned char *)buffer, &amountRead, (unsigned int)size))
|
|
{
|
|
CLog::Log(LOGDEBUG, __FUNCTION__" Error reading file");
|
|
return 0;
|
|
}
|
|
return amountRead;
|
|
}
|
|
|
|
bool CFat32FileSystem::GetShortFilePath(const CStdString &path, CStdString &shortPath)
|
|
{
|
|
shortPath.Empty();
|
|
if (path.IsEmpty())
|
|
return true; // nothing to do
|
|
// split the path up
|
|
CStdStringArray folders;
|
|
StringUtils::SplitString(path, "/", folders);
|
|
|
|
bool isfolder = true;
|
|
for (unsigned int i = 0; i < folders.size(); ++i)
|
|
{
|
|
if(!isfolder)
|
|
return false;
|
|
|
|
if (folders[i].IsEmpty())
|
|
continue; // ignore empty portions (eg at the start of the url)
|
|
CFileItemList items;
|
|
if (GetDirectoryWithShortPaths(shortPath, items))
|
|
{
|
|
bool found(false);
|
|
for (int j = 0; j < items.Size(); ++j)
|
|
{
|
|
if (items[j]->GetLabel() == folders[i])
|
|
{ // found :)
|
|
shortPath += "/" + items[j]->GetPath();
|
|
found = true;
|
|
isfolder = items[j]->m_bIsFolder;
|
|
break;
|
|
}
|
|
}
|
|
if (!found)
|
|
return false;
|
|
}
|
|
else
|
|
{ // unable to get directory - return false
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
unsigned int CFat32FileSystem::Write(const void *buffer, __int64 size)
|
|
{
|
|
if (m_opened != OPEN_FOR_WRITE) return 0;
|
|
BYTE sector[FAT_PAGE_SIZE];
|
|
unsigned int amountWritten = 0;
|
|
if (DFS_OK != DFS_WriteFile(&m_file, sector, (unsigned char *)buffer, &amountWritten, (unsigned int)size))
|
|
{
|
|
CLog::Log(LOGDEBUG, __FUNCTION__" Error writing file");
|
|
return 0;
|
|
}
|
|
return amountWritten;
|
|
}
|
|
|
|
__int64 CFat32FileSystem::Seek(__int64 position)
|
|
{
|
|
if (m_opened == CLOSED) return -1;
|
|
BYTE sector[FAT_PAGE_SIZE];
|
|
DFS_Seek(&m_file, (unsigned int)position, sector);
|
|
return m_file.pointer;
|
|
}
|
|
|
|
__int64 CFat32FileSystem::GetLength()
|
|
{
|
|
return m_file.filelen;
|
|
}
|
|
|
|
__int64 CFat32FileSystem::GetPosition()
|
|
{
|
|
return m_file.pointer;
|
|
}
|
|
|
|
bool CFat32FileSystem::Delete(const CStdString &file)
|
|
{
|
|
return false;
|
|
|
|
/* CFat32Device *device = (CFat32Device *)g_memoryUnitManager.GetDevice(m_unit);
|
|
if (!device) return false;
|
|
|
|
BYTE sector[FAT_PAGE_SIZE];
|
|
if (DFS_OK != DFS_UnlinkFile(device->GetVolume(), (uint8_t*)file.c_str(), sector))
|
|
{
|
|
CLog::Log(LOGDEBUG, __FUNCTION__" Error deleting file %s", file.c_str());
|
|
return false;
|
|
}
|
|
return true;*/
|
|
}
|
|
|
|
bool CFat32FileSystem::Rename(const CStdString &oldFile, const CStdString &newFile)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool CFat32FileSystem::MakeDir(const CStdString &path)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool CFat32FileSystem::RemoveDir(const CStdString &path)
|
|
{
|
|
return Delete(path);
|
|
}
|
|
|
|
bool CFat32FileSystem::GetDirectory(const CStdString &directory, CFileItemList &items)
|
|
{
|
|
// first grab the shortened version of this directory
|
|
CStdString shortDirectory;
|
|
if (GetShortFilePath(directory, shortDirectory) && GetDirectoryWithShortPaths(shortDirectory, items))
|
|
{ // success - update our paths
|
|
for (int i = 0; i < items.Size(); ++i)
|
|
{
|
|
CFileItemPtr item = items[i];
|
|
CStdString path;
|
|
if (directory.IsEmpty())
|
|
path.Format("mem%d://%s", m_unit, item->GetLabel().c_str());
|
|
else
|
|
path.Format("mem%d://%s/%s", m_unit, directory.c_str(), item->GetLabel().c_str());
|
|
item->SetPath(path);
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool CFat32FileSystem::GetDirectoryWithShortPaths(const CStdString &directory, CFileItemList &items)
|
|
{
|
|
CFat32Device *device = (CFat32Device *)g_memoryUnitManager.GetDevice(m_unit);
|
|
if (!device) return false;
|
|
|
|
DIRINFO di;
|
|
BYTE buffer[FAT_PAGE_SIZE];
|
|
di.scratch = (uint8_t*)buffer;
|
|
if (DFS_OpenDir(device->GetVolume(), (uint8_t*)directory.c_str(), &di)) {
|
|
CLog::Log(LOGDEBUG, __FUNCTION__" Error opening directory %s", directory.c_str());
|
|
return false;
|
|
}
|
|
// vfat naming
|
|
CStdStringW vfatName;
|
|
unsigned short vfatSequence = 0;
|
|
unsigned char vfatChecksum = 0;
|
|
DIRENT de;
|
|
while (!DFS_GetNext(device->GetVolume(), &di, &de))
|
|
{
|
|
if (de.name[0])
|
|
{
|
|
|
|
if ((de.attr & ATTR_LONG_NAME) == ATTR_LONG_NAME)
|
|
{ // long filename
|
|
VFAT_DIR_ENTRY *vfat = (VFAT_DIR_ENTRY*)&de;
|
|
// check it's a vfat entry
|
|
if (vfat->attr_0f != 0x0f || vfat->cluster_0000 != 0x0000 || vfat->type_00 != 0x00)
|
|
{ // invalid entry
|
|
continue;
|
|
}
|
|
// not sure why but very long filename's have 0x40 set on both their 5 and 6th part.
|
|
// let's only check if sequence mismatches
|
|
if ((vfat->sequence & 0x40) == 0x40)
|
|
{ // last entry
|
|
if((vfat->sequence & 0x1f) == vfatSequence && vfat->checksum == vfatChecksum)
|
|
CLog::Log(LOGWARNING, __FUNCTION__" Last entry signaled, but sequence and checksum still match, ignoring");
|
|
else
|
|
{
|
|
vfatName.Empty();
|
|
vfatSequence = (vfat->sequence & 0x1f);
|
|
vfatChecksum = vfat->checksum;
|
|
}
|
|
}
|
|
if (vfat->checksum == vfatChecksum && (vfat->sequence & 0x1f) == vfatSequence && vfatSequence)
|
|
{
|
|
WCHAR unicode[14];
|
|
memcpy(unicode, vfat->unicode1, 10);
|
|
memcpy(unicode + 5, vfat->unicode2, 12);
|
|
memcpy(unicode + 11, vfat->unicode3, 4);
|
|
unicode[13] = 0;
|
|
vfatName = unicode + vfatName;
|
|
vfatSequence--;
|
|
}
|
|
continue;
|
|
}
|
|
// ignore the volume descripter
|
|
if ((de.attr & ATTR_VOLUME_ID) == ATTR_VOLUME_ID)
|
|
continue;
|
|
CStdString shortPath;
|
|
if ((de.attr & ATTR_DIRECTORY) == 0)
|
|
{ // filename
|
|
shortPath.Format("%-8.8s", de.name);
|
|
shortPath.TrimRight(' ');
|
|
CStdString extension;
|
|
extension.Format(".%-3.3s", de.name + 8);
|
|
shortPath += extension;
|
|
}
|
|
else
|
|
{ // folders with a period in them must be catered for
|
|
shortPath.Format("%-11.11s", de.name);
|
|
}
|
|
shortPath.TrimRight(' ');
|
|
// we don't want require the parent and current directory items
|
|
if (shortPath.Equals(".") || shortPath.Equals(".."))
|
|
continue;
|
|
CStdString longPath = shortPath;
|
|
// do we have a vfatName here?
|
|
if (!vfatSequence && vfatName.size())
|
|
{ // yes, check the checksum
|
|
g_charsetConverter.wToUTF8(vfatName, longPath);
|
|
vfatSequence = 0;
|
|
vfatName.Empty();
|
|
}
|
|
CFileItemPtr item(new CFileItem(longPath));
|
|
item->SetPath(shortPath);
|
|
item->m_bIsFolder = (de.attr & ATTR_DIRECTORY) == ATTR_DIRECTORY;
|
|
// file size
|
|
if ((de.attr & ATTR_DIRECTORY) == 0)
|
|
item->m_dwSize = *((unsigned long *)(&de.filesize_0));
|
|
// Currently using the last write time
|
|
int day = (de.wrtdate_l & 0x1f);
|
|
int month = ((de.wrtdate_l & 0xe0) >> 5) | ((de.wrtdate_h & 1) << 3);
|
|
int year = 1980 + ((de.wrtdate_h & 0xfe) >> 1);
|
|
int second = (de.wrttime_l & 0x1f) << 1;
|
|
int minute = ((de.wrttime_l & 0xe0) >> 5) | ((de.wrttime_h & 0x07) << 3);
|
|
int hour = (de.wrtdate_h & 0xf8) >> 3;
|
|
item->m_dateTime.SetDateTime(year, month, day, hour, minute, second);
|
|
|
|
items.Add(item);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
}
|