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RFS.cpp
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RFS.cpp
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/*
* Copyright (C) 2008-2012, OctaneSnail <os@v12pwr.com>
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <windows.h>
#include <streams.h>
#include <initguid.h>
#include <strsafe.h>
#include "RFS.h"
#include "Utils.h"
#include "RAR.h"
#include "Anchor.h"
#include "resource.h"
#include "Mediatype.h"
#include "File.h"
// {9FFE11D2-29F2-463f-AD5F-C04A5EE2E58D}
DEFINE_GUID(CLSID_RARFileSource,
0x9ffe11d2, 0x29f2, 0x463f, 0xad, 0x5f, 0xc0, 0x4a, 0x5e, 0xe2, 0xe5, 0x8d);
#define RFS_GUID_STRING "{9FFE11D2-29F2-463f-AD5F-C04A5EE2E58D}"
//{1AC0BEBD-4D2B-45AD-BCEB-F2C41C5E3788}
DEFINE_GUID(MEDIASUBTYPE_Matroska,
0x1AC0BEBD, 0x4D2B, 0x45AD, 0xBC, 0xEB, 0xF2, 0xC4, 0x1C, 0x5E, 0x37, 0x88);
// Setup information
const AMOVIESETUP_MEDIATYPE sudPinTypes =
{
&MEDIATYPE_Stream, // Major type
&MEDIASUBTYPE_NULL // Minor type
};
const AMOVIESETUP_PIN sudpPin =
{
L"Output", // Pin name
FALSE, // Is it rendered
TRUE, // Is it an output
FALSE, // Zero instances allowed
FALSE, // Multiple instances allowed
&CLSID_NULL, // Connects to filter
NULL, // Connects to pin
1, // Number of types
&sudPinTypes // Pin types
};
const AMOVIESETUP_FILTER sudRARFileSource =
{
&CLSID_RARFileSource, // Filter CLSID
L"RAR File Source", // Filter name
MERIT_UNLIKELY, // Filter merit
1, // Number of pins
&sudpPin // Pin information
};
// List of class IDs and creator functions for the class factory.
CFactoryTemplate g_Templates [] =
{
{
L"RAR File Source",
&CLSID_RARFileSource,
CRARFileSource::CreateInstance,
NULL,
&sudRARFileSource
}
};
int g_cTemplates = sizeof (g_Templates) / sizeof (g_Templates [0]);
/* static */
file_type_t CRARFileSource::s_file_types [] =
{
{ "avi", &MEDIASUBTYPE_Avi },
{ "mpg", &MEDIASUBTYPE_MPEG1System },
{ "vob", &MEDIASUBTYPE_MPEG2_PROGRAM },
{ "mkv", &MEDIASUBTYPE_Matroska },
{ "mka", &MEDIASUBTYPE_Matroska },
{ "mks", &MEDIASUBTYPE_Matroska },
{ "mov", &MEDIASUBTYPE_QTMovie },
{ "wav", &MEDIASUBTYPE_WAVE },
{ "mp3", &MEDIASUBTYPE_MPEG1Audio },
{ "mpa", &MEDIASUBTYPE_MPEG1Audio },
{ "mpv", &MEDIASUBTYPE_MPEG1Video },
{ "dat", &MEDIASUBTYPE_MPEG1VideoCD },
{ NULL, NULL }
};
extern "C" BOOL WINAPI DllEntryPoint (HINSTANCE, ULONG, LPVOID);
BOOL WINAPI DllMain (HINSTANCE hDllHandle, DWORD dwReason, LPVOID lpReserved)
{
return DllEntryPoint (hDllHandle, dwReason, lpReserved);
}
STDAPI DllRegisterServer ()
{
HKEY key;
LONG ret;
int i;
wchar_t key_name [] = L"Media Type\\Extensions\\.rar";
ret = RegCreateKey (HKEY_CLASSES_ROOT, key_name, &key);
if (ret != ERROR_SUCCESS)
{
ret = RegOpenKey (HKEY_CLASSES_ROOT, key_name, &key);
if (ret != ERROR_SUCCESS)
return ret;
}
ret = RegSetValueExA (key, "Source Filter", 0, REG_SZ, (BYTE *) RFS_GUID_STRING, (DWORD) strlen (RFS_GUID_STRING) + 1);
if (ret != ERROR_SUCCESS)
{
RegCloseKey (key);
return ret;
}
RegCloseKey (key);
for (i = 0; i < 100; i ++)
{
key_name [24] = L'0' + i / 10;
key_name [25] = L'0' + i % 10;
ret = RegCreateKey (HKEY_CLASSES_ROOT, key_name, &key);
if (ret != ERROR_SUCCESS)
{
ret = RegOpenKey (HKEY_CLASSES_ROOT, key_name, &key);
if (ret != ERROR_SUCCESS)
continue;
}
ret = RegSetValueExA (key, "Source Filter", 0, REG_SZ, (BYTE *) RFS_GUID_STRING, (DWORD) strlen (RFS_GUID_STRING) + 1);
RegCloseKey (key);
}
return AMovieDllRegisterServer2 (TRUE);
}
STDAPI DllUnregisterServer ()
{
HKEY key;
LONG ret;
char value [40];
DWORD len = sizeof (value);
wchar_t key_name [] = L"Media Type\\Extensions\\.rar";
int i;
for (i = 0; i < 101; i ++)
{
ret = RegOpenKey (HKEY_CLASSES_ROOT, key_name, &key);
if (ret == ERROR_SUCCESS)
{
ret = RegQueryValueExA (key, "Source Filter", NULL, NULL, (BYTE *) value, &len);
RegCloseKey (key);
if (ret == ERROR_SUCCESS)
{
if (!_stricmp (value, RFS_GUID_STRING))
RegDeleteKey (HKEY_CLASSES_ROOT, key_name);
}
}
key_name [24] = L'0' + i / 10;
key_name [25] = L'0' + i % 10;
}
return AMovieDllRegisterServer2 (FALSE);
}
CRARFileSource::CRARFileSource (LPUNKNOWN punk, HRESULT *phr) :
CBaseFilter (L"RAR File Source", punk, &m_lock, CLSID_RARFileSource),
m_pin (this, &m_lock, phr),
m_file_name (NULL),
m_file (NULL)
{
if (phr)
*phr = S_OK;
}
CRARFileSource::~CRARFileSource ()
{
delete m_file_name;
delete m_file;
}
CUnknown *CRARFileSource::CreateInstance (LPUNKNOWN punk, HRESULT *phr) // OK
{
CRARFileSource *pNewObject = new CRARFileSource (punk, phr);
if (pNewObject == NULL)
*phr = E_OUTOFMEMORY;
DbgSetModuleLevel (LOG_TRACE, 2);
DbgLog((LOG_TRACE, 2, L"CRARFileSource::CreateInstance () succeded."));
return pNewObject;
}
STDMETHODIMP CRARFileSource::NonDelegatingQueryInterface (REFIID riid, void **ppv)
{
if (riid == IID_IFileSourceFilter)
return GetInterface ((IFileSourceFilter *) this, ppv);
else
return CBaseFilter::NonDelegatingQueryInterface (riid, ppv);
}
/* static */
void CRARFileSource::UpdateArchiveName (wchar_t *ext, size_t len, int volume, bool new_numbering)
{
if (new_numbering)
{
StringCchPrintf (ext, len + 1, L"%0*d", len, volume + 1);
ext [len] = L'.';
}
else
{
ASSERT (len == 2);
if (volume == 0)
{
ext [0] = L'a';
ext [1] = L'r';
}
else
StringCchPrintf (ext - 1, len + 2, L"%c%02d", 114 + (volume - 1) / 100, (volume - 1) % 100);
}
}
#define HEADER_SKIP_FILE \
delete [] rh.fh.filename; \
SetFilePointerEx (hFile, rh.bytesRemaining, NULL, FILE_CURRENT); \
continue;
int CRARFileSource::ScanArchive (wchar_t *archive_name, List<File> *file_list, int *ok_files_found)
{
DWORD dwBytesRead;
char *filename = NULL;
wchar_t *current_rar_filename = NULL, *rar_ext;
bool first_archive_file = true, rewind;
bool multi_volume = false, new_numbering = false;
rar_header_t rh;
BYTE marker [7];
BYTE expected [7] = { 0x52, 0x61, 0x72, 0x21, 0x1A, 0x07, 0x00 };
FilePart *new_part, *prev_part;
LONGLONG collected;
DWORD ret;
DWORD files = 0, volumes = 0;
int volume_digits;
File *file = NULL;
*ok_files_found = 0;
LARGE_INTEGER zero = {0};
MediaType *mType;
List<MediaType> mediaTypeList (true);
Anchor<File> af (&file);
ArrayAnchor<wchar_t> acrf (¤t_rar_filename);
HANDLE hFile = INVALID_HANDLE_VALUE;
Anchor<HANDLE> ha (&hFile);
int cch = lstrlen (archive_name) + 1;
current_rar_filename = new wchar_t [cch];
if (!current_rar_filename)
{
ErrorMsg (0, L"Out of memory.");
return 0;
}
CopyMemory (current_rar_filename, archive_name, cch * sizeof (wchar_t));
rar_ext = wcsrchr (current_rar_filename, '.');
if (getMediaTypeList (&mediaTypeList) == -1)
return 0; // this means out of memory
// Scan through archive volume(s)
while (true)
{
ha.Close ();
DbgLog((LOG_TRACE, 2, L"Loading file \"%s\".", current_rar_filename));
hFile = CreateFile (current_rar_filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
if (first_archive_file || rewind)
{
ErrorMsg (GetLastError (), L"Could not open file \"%s\".", current_rar_filename);
return files;
}
else
break;
}
rewind = false;
// Read marker.
if (!ReadFile (hFile, marker, 7, &dwBytesRead, NULL) || dwBytesRead != 7)
{
ErrorMsg (GetLastError (), L"Could not read RAR header.");
return files;
}
if (memcmp (marker, expected, 7))
{
ErrorMsg (0, L"Incorrect RAR marker.");
return files;
}
// Read archive header.
if (ReadHeader (hFile, &rh))
return files;
LOG_HEADER(&rh);
if (rh.ch.type != HEADER_TYPE_ARCHIVE)
{
ErrorMsg (0, L"Unexpected RAR header type.");
return files;
}
if (rh.ch.flags & MHD_PASSWORD)
{
ErrorMsg (0, L"Encrypted RAR volumes are not supported.");
return files;
}
if (first_archive_file)
{
new_numbering = !!(rh.ch.flags & MHD_NEWNUMBERING);
multi_volume = !!(rh.ch.flags & MHD_VOLUME);
if (multi_volume)
{
if (!rar_ext)
{
ErrorMsg (0, L"Input file does not end with .rar");
return files;
}
// Locate volume counter
if (new_numbering)
{
volume_digits = 0;
do
{
rar_ext --;
volume_digits ++;
} while (iswdigit (*(rar_ext - 1)));
}
else
{
rar_ext += 2;
volume_digits = 2;
}
if (!(rh.ch.flags & MHD_FIRSTVOLUME))
{
DbgLog((LOG_TRACE, 2, L"Rewinding to the first file in the set."));
UpdateArchiveName (rar_ext, volume_digits, volumes, new_numbering);
first_archive_file = false;
rewind = true;
continue;
}
}
}
else
{
ASSERT (new_numbering == !!(rh.ch.flags & MHD_NEWNUMBERING));
ASSERT (rh.ch.flags & MHD_VOLUME);
}
// Find file headers
while (true)
{
// Read file header.
if (ret = ReadHeader (hFile, &rh))
{
if (ret == ERROR_HANDLE_EOF)
break;
else
return files;
}
LOG_HEADER(&rh);
if (rh.ch.type == HEADER_TYPE_END)
{
// TODO: Verify that the volume number in the header matches our volume counter.
// Check for EARC_NEXT_VOLUME removed as this flag is missing on some archives.
break;
}
if (rh.ch.type != HEADER_TYPE_FILE)
{
SetFilePointerEx (hFile, rh.bytesRemaining, NULL, FILE_CURRENT);
DbgLog((LOG_TRACE, 2, L"Skipping unknown header of type %02x.", rh.ch.type));
continue;
}
DbgLog((LOG_TRACE, 2, L"SIZE %08lx %08lx OS %02x CRC %08lx TIMESTAMP %08lx VERSION %d METHOD %02x LEN %04lx ATTRIB %08lx",
rh.fh.size.HighPart, rh.fh.size.LowPart, rh.fh.os, rh.fh.crc, rh.fh.timestamp, rh.fh.version, rh.fh.method, rh.fh.name_len, rh.fh.attributes));
DbgLog((LOG_TRACE, 2, L"FILENAME \"%S\"", rh.fh.filename));
if ((rh.ch.flags & LHD_WINDOWMASK) == LHD_DIRECTORY)
{
DbgLog((LOG_TRACE, 2, L"Skipping directory."));
HEADER_SKIP_FILE
}
if (filename)
{
if (strcmp (filename, rh.fh.filename))
{
// TODO: We should probably dump the old file start fresh with this one
// since the lazy error handling at other places may cause us to end up here.
DbgLog((LOG_TRACE, 2, L"Incorrect file found."));
HEADER_SKIP_FILE
}
if (!(rh.ch.flags & LHD_SPLIT_BEFORE))
{
// TODO: Decide if it's better to ignore the missing flag.
DbgLog((LOG_TRACE, 2, L"LHD_SPLIT_BEFORE flag was not set as expected."));
HEADER_SKIP_FILE
}
delete [] rh.fh.filename;
}
else
{
if (!multi_volume && rh.ch.flags & (LHD_SPLIT_BEFORE | LHD_SPLIT_AFTER))
{
ErrorMsg (0, L"Split file in a single volume archive.");
delete [] rh.fh.filename;
return files;
}
if (rh.ch.flags & LHD_SPLIT_BEFORE)
{
if (first_archive_file)
{
// Some archives incorrectly have MHD_FIRSTVOLUME set on all files, attempt rewind.
DbgLog((LOG_TRACE, 2, L"Rewinding to the first file in the set."));
UpdateArchiveName (rar_ext, volume_digits, volumes, new_numbering);
rewind = true;
delete [] rh.fh.filename;
break;
}
else
{
// TODO: Decide if it's better to just abort the entire scanning process here.
DbgLog((LOG_TRACE, 2, L"Not at the beginning of the file."));
HEADER_SKIP_FILE
}
}
files ++;
collected = 0;
ASSERT (!file);
file = new File ();
if (!file)
{
ErrorMsg (0, L"Out of memory.");
delete [] rh.fh.filename;
return files;
}
file->media_type.SetType (&MEDIATYPE_Stream);
file->media_type.SetSubtype (&MEDIASUBTYPE_NULL);
file->filename = rh.fh.filename;
file->size = rh.fh.size.QuadPart;
filename = rh.fh.filename;
if (rh.ch.flags & LHD_PASSWORD)
{
DbgLog((LOG_TRACE, 2, L"Encrypted files are not supported."));
file->unsupported = true;
}
if (rh.fh.method != 0x30)
{
DbgLog((LOG_TRACE, 2, L"Compressed files are not supported."));
file->unsupported = true;
}
}
if (!file->unsupported)
{
new_part = new FilePart ();
if (!new_part)
{
ErrorMsg (0, L"Out of memory.");
return files;
}
// Is this the 1st part?
if (!file->parts)
{
file->parts = 1;
file->list = new_part;
}
else
{
file->parts ++;
prev_part->next = new_part;
}
prev_part = new_part;
SetFilePointerEx (hFile, zero, (LARGE_INTEGER*) &new_part->in_rar_offset, FILE_CURRENT);
new_part->in_file_offset = collected;
new_part->size = rh.bytesRemaining.QuadPart;
new_part->file = CreateFile (current_rar_filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
if (new_part->file == INVALID_HANDLE_VALUE)
{
ErrorMsg (GetLastError (), L"Could not open file \"%s\".", current_rar_filename);
return files;
}
}
collected += rh.bytesRemaining.QuadPart;
SetFilePointerEx (hFile, rh.bytesRemaining, NULL, FILE_CURRENT);
// Is file complete?
if (!(rh.ch.flags & LHD_SPLIT_AFTER))
{
if (!file->unsupported && file->size != collected)
DbgLog((LOG_TRACE, 2, L"The file is not the sum of it's parts. expected = %lld, actual = %lld", file->size, collected));
if (file->parts)
{
file->array = new FilePart [file->parts];
if (!file->array)
{
ErrorMsg (0, L"Out of memory.");
return files;
}
FilePart *fp = file->list;
file->list = NULL;
for (int i = 0; i < file->parts; i ++)
{
FilePart *tmp;
memcpy (file->array + i, fp, sizeof (FilePart));
tmp = fp;
fp = fp->next;
tmp->file = INVALID_HANDLE_VALUE;
delete tmp;
}
}
if (!file->unsupported)
{
if (!checkFileForMediaType (file, &mediaTypeList, &mType))
return files; // this means out of memory
if (mType)
{
#ifdef _DEBUG
LPOLESTR majorType, subType;
StringFromCLSID (mType->majorType, &majorType);
StringFromCLSID (mType->subType, &subType);
DbgLog((LOG_TRACE, 2, L"Filetype detection determined:"));
DbgLog((LOG_TRACE, 2, L" Major type: %s", majorType));
DbgLog((LOG_TRACE, 2, L" Subtype: %s", subType));
CoTaskMemFree (majorType);
CoTaskMemFree (subType);
#endif
file->media_type.SetType (&mType->majorType);
file->media_type.SetSubtype (&mType->subType);
file->type_known = true;
(*ok_files_found) ++;
}
}
// TODO: Figure out if checking file extensions is necessary anymore.
if (!file->type_known)
{
char *ext = strrchr (file->filename, '.');
if (ext)
{
ext ++;
int i;
for (i = 0; s_file_types [i].extension; i ++)
{
if (!_stricmp (ext, s_file_types [i].extension))
break;
}
if (s_file_types [i].extension)
{
file->media_type.SetSubtype (s_file_types [i].guid);
file->type_known = true;
if (!file->unsupported)
(*ok_files_found) ++;
}
else
{
file->unsupported = true;
DbgLog((LOG_TRACE, 2, L"Unknown file extension."));
}
}
else
{
file->unsupported = true;
DbgLog((LOG_TRACE, 2, L"No file extension."));
}
}
if (filename != file->filename)
delete filename;
filename = NULL;
file_list->InsertLast (file);
file = NULL;
}
}
first_archive_file = false;
if (rewind)
continue;
if (!multi_volume)
break;
// Continue to the next volume.
volumes ++;
UpdateArchiveName (rar_ext, volume_digits, volumes, new_numbering);
}
if (file)
{
// TODO: Decide if we should allow playback of truncated files.
ErrorMsg (0, L"Couldn't find all archive volumes.");
}
return files;
}
/* static */
INT_PTR CALLBACK CRARFileSource::DlgFileList (HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
int index;
switch (uMsg)
{
case WM_INITDIALOG:
{
int len;
List<File> *file_list = (List<File> *) lParam;
File *file = file_list->First ();
wchar_t *tempString;
while (file)
{
if (!file->unsupported)
{
len = (int) strlen (file->filename) + 1;
tempString = new wchar_t [len];
MultiByteToWideChar (CP_ACP, 0, file->filename, -1, tempString, len);
index = ListBox_AddString (GetDlgItem (hwndDlg, IDC_FILELIST), tempString);
ListBox_SetItemData (GetDlgItem (hwndDlg, IDC_FILELIST), index, file);
delete [] tempString;
}
file = file_list->Next (file);
}
ListBox_SetCurSel (GetDlgItem (hwndDlg, IDC_FILELIST), 0);
SetForegroundWindow (hwndDlg);
return TRUE;
}
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDOK:
index = ListBox_GetCurSel (GetDlgItem (hwndDlg, IDC_FILELIST));
EndDialog (hwndDlg, ListBox_GetItemData (GetDlgItem (hwndDlg, IDC_FILELIST), index));
return TRUE;
case IDCANCEL:
EndDialog (hwndDlg, NULL);
return TRUE;
case IDC_FILELIST:
switch (HIWORD (wParam))
{
case LBN_DBLCLK:
index = ListBox_GetCurSel ((HWND) lParam);
EndDialog (hwndDlg, ListBox_GetItemData ((HWND) lParam, index));
return TRUE;
}
}
break;
case WM_CLOSE:
EndDialog (hwndDlg, NULL);
return TRUE;
}
return FALSE;
}
// IFileSourceFilter methods
STDMETHODIMP CRARFileSource::Load (LPCOLESTR lpwszFileName, const AM_MEDIA_TYPE *pmt)
{
List <File> file_list;
int num_files, num_ok_files;
CAutoLock lck (&m_lock);
if (!lpwszFileName)
return E_POINTER;
if (m_file)
{
DbgLog((LOG_TRACE, 2, L"CRARFileSource::Load called with file already loaded."));
return E_UNEXPECTED;
}
int cch = lstrlen (lpwszFileName) + 1;
if (m_file_name)
delete m_file_name;
m_file_name = new WCHAR [cch];
if (!m_file_name)
{
ErrorMsg (0, L"Out of memory.");
return E_OUTOFMEMORY;
}
CopyMemory (m_file_name, lpwszFileName, cch * sizeof (WCHAR));
num_files = ScanArchive ((wchar_t *) lpwszFileName, &file_list, &num_ok_files);
DbgLog((LOG_TRACE, 2, L"Found %d files out of which %d are media files.", num_files, num_ok_files));
if (!num_ok_files)
{
ErrorMsg (0, L"No media files found in the archive.");
return E_UNEXPECTED; // TODO: Figure out a better error code.
}
if (num_ok_files == 1)
{
m_file = file_list.First ();
while (m_file->unsupported)
m_file = file_list.Next (m_file);
}
else
{
m_file = (File *) DialogBoxParam (g_hInst, MAKEINTRESOURCE(IDD_FILELIST), 0, DlgFileList, (LPARAM) &file_list);
if (!m_file)
return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
}
if (pmt)
m_file->media_type = *pmt;
m_file->Unlink ();
m_pin.SetFile (m_file);
file_list.Clear ();
return S_OK;
}
// Behaves like IPersistFile::Load
STDMETHODIMP CRARFileSource::GetCurFile (LPOLESTR *ppszFileName, AM_MEDIA_TYPE *pmt)
{
if (!ppszFileName)
return E_POINTER;
if (m_file_name != NULL)
{
DWORD n = sizeof (WCHAR) * (lstrlen (m_file_name) + 1);
*ppszFileName = (LPOLESTR) CoTaskMemAlloc (n);
if (*ppszFileName != NULL)
CopyMemory (*ppszFileName, m_file_name, n);
else
return E_OUTOFMEMORY;
}
else
*ppszFileName = NULL;
if (pmt != NULL)
CopyMediaType (pmt, &m_file->media_type);
return NOERROR;
}