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// IMPLEMENTATION PRIVATE DEFINITIONS / ENUMERATIONS / SIMPLE TYPEDEFS
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//============================================================================
// IMPLEMENTATION PRIVATE CLASS PROTOTYPES / EXTERNAL CLASS REFERENCES
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//============================================================================
// IMPLEMENTATION PRIVATE STRUCTURES / UTILITY CLASSES
//============================================================================
//============================================================================
// IMPLEMENTATION REQUIRED EXTERNAL REFERENCES (AVOID)
//============================================================================
//============================================================================
// IMPLEMENTATION PRIVATE DATA
//============================================================================
//============================================================================
// INTERFACE DATA
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//============================================================================
// IMPLEMENTATION PRIVATE FUNCTION PROTOTYPES
//============================================================================
//============================================================================
// IMPLEMENTATION PRIVATE FUNCTIONS
//============================================================================
//============================================================================
// INTERFACE FUNCTIONS
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// Returns the Path for a File Name.
VFS_BOOL VFS_Util_GetPath( const VFS_String& strFileName, VFS_String& strPath )
{
// Following exceptions:
// Path of "/" is ""
// Path of (char)":/" is (""
if( ( strFileName.size() == 1 && strFileName[ 0 ] == VFS_PATH_SEPARATOR ) ||
( strFileName.size() == 3 && strFileName[ 1 ] == VFS_TEXT( ':' ) && strFileName[ 2 ] == VFS_PATH_SEPARATOR ) )
{
strPath = VFS_TEXT( "" );
return VFS_TRUE;
}
strPath = WithoutTrailingSeparator( strFileName, VFS_FALSE );
// Is there a trailing backslash?
if( strPath.rfind( VFS_PATH_SEPARATOR ) != VFS_String::npos )
{
// Remove all the text starting from the trailing backslash.
strPath = strPath.substr( 0, strPath.rfind( VFS_PATH_SEPARATOR ) );
}
else
{
strPath = VFS_TEXT( "" );
}
return VFS_TRUE;
}
// Check / modify the Archive Extension.
VFS_String CArchive::CheckExtension( VFS_String strFileName )
{
static const VFS_String RIGHT( VFS_String( VFS_TEXT( "." ) ) + VFS_ARCHIVE_FILE_EXTENSION );
if( strFileName.size() < RIGHT.size() ||
ToLower( strFileName.substr( strFileName.size() - RIGHT.size(), RIGHT.size() ) ) !=
ToLower( RIGHT ) )
return strFileName + VFS_TEXT( "." ) + VFS_ARCHIVE_FILE_EXTENSION;
return strFileName;
}
VFS_BOOL VFS_Archive_GetInfo( const VFS_String& strArchiveFileName, VFS_EntityInfo& Info )
{
// Not initialized yet?
if( !IsInit() )
{
SetLastError( VFS_ERROR_NOT_INITIALIZED_YET );
return VFS_FALSE;
}
// Get Info and change Type.
if( !VFS_File_GetInfo( strArchiveFileName + VFS_TEXT( "." ) + VFS_ARCHIVE_FILE_EXTENSION, Info ) )
return VFS_FALSE;
// Check the Extension.
VFS_String strExtension;
if( !VFS_Util_GetExtension( Info.strName, strExtension ) )
return VFS_FALSE;
if( ToLower( strExtension ) != ToLower( VFS_ARCHIVE_FILE_EXTENSION ) )
{
SetLastError( VFS_ERROR_NOT_AN_ARCHIVE );
return VFS_FALSE;
}
// Remove the Extension (THE ONLY TIME THE USER IS CONFRONTATED WITH THE ARCHIVE FILE EXTENSION IS WHEN HE USES EXPLICITELY THE VFS_ARCHIVE_FILE_EXTENSION CONSTANT).
Info.strName = Info.strName.substr( 0, Info.strName.size() - strExtension.size() - 1 );
Info.strPath = Info.strPath.substr( 0, Info.strPath.size() - strExtension.size() - 1 );
// Change the Type in the Entity Information Record.
Info.eType = VFS_ARCHIVE;
return VFS_TRUE;
}
// Determines whether the specified file name is absolute.
VFS_BOOL VFS_Util_IsAbsoluteFileName( const VFS_String& strFileName )
{
// There are two possibilities for an absolute File Name.
// - <path separator>.......
// - <drive letter><path separator>.......
if( strFileName.size() == 0 )
return VFS_FALSE;
if( strFileName[ 0 ] == VFS_PATH_SEPARATOR )
return VFS_TRUE;
if( strFileName.size() < 3 )
return VFS_FALSE;
if( isalpha( strFileName[ 0 ] ) && strFileName[ 1 ] == VFS_TEXT( ':' ) && strFileName[ 2 ] == VFS_PATH_SEPARATOR )
return VFS_TRUE;
return VFS_FALSE;
}
// Returns the Name for a File Name.
VFS_BOOL VFS_Util_GetName( const VFS_String& strFileName, VFS_String& strName )
{
// Following exceptions:
// Name of "/" is "/"
// Name of (char)":/" is (char)":/"
if( ( strFileName.size() == 1 && strFileName[ 0 ] == VFS_PATH_SEPARATOR ) ||
( strFileName.size() == 3 && strFileName[ 1 ] == VFS_TEXT( ':' ) && strFileName[ 2 ] == VFS_PATH_SEPARATOR ) )
{
strName = strFileName;
return VFS_TRUE;
}
strName = WithoutTrailingSeparator( strFileName, VFS_TRUE );
// Is there a trailing backslash?
if( strName.rfind( VFS_PATH_SEPARATOR ) != VFS_String::npos )
{
// Remove all the text from the beginning to the trailing backslash.
strName = strName.substr( strName.rfind( VFS_PATH_SEPARATOR ) + 1 );
}
return VFS_TRUE;
}
// Create an Archive from the specified File List.
VFS_BOOL VFS_Archive_CreateFromFileList( const VFS_String& strArchiveFileName, const VFS_FileNameMap& Files, const VFS_FilterNameList& UsedFilters )
{
static VFS_BYTE Chunk[ FILE_COPY_CHUNK_SIZE ];
// If there's already an Archive with the same File Name and it's open...
VFS_EntityInfo Info;
if( VFS_Archive_GetInfo( ToLower( strArchiveFileName ), Info ) )
{
// Check if the Archive is open.
if( GetOpenArchives().find( ToLower( Info.strPath ) ) != GetOpenArchives().end() )
{
// Check if the Reference Count is != 0.
if( GetOpenArchives()[ ToLower( Info.strPath ) ]->GetRefCount() > 0 )
{
// We don't want to manipulate an open Archive, do we?
SetLastError( VFS_ERROR_IN_USE );
return VFS_FALSE;
}
else
{
// Free the Archive.
delete GetOpenArchives()[ ToLower( Info.strPath ) ];
GetOpenArchives().erase( ToLower( Info.strPath ) );
}
}
}
else
{
Info.strPath = ToLower( strArchiveFileName );
SetLastError( VFS_ERROR_NONE );
}
// Check the Filter Names and make a List of all Filter Pointers.
VFS_FilterList Filters;
for( VFS_FilterNameList::const_iterator iter = UsedFilters.begin(); iter != UsedFilters.end(); iter++ )
{
// Bad Filter Name?
if( !VFS_ExistsFilter( *iter ) )
{
SetLastError( VFS_ERROR_INVALID_PARAMETER );
return VFS_FALSE;
}
// Add the Filter.
Filters.push_back( VFS_GetFilter( *iter ) );
}
// Check all Files.
for( VFS_FileNameMap::const_iterator iter2 = Files.begin(); iter2 != Files.end(); iter2++ )
{
if( !VFS_File_Exists( ( *iter2 ).first ) )
{
SetLastError( VFS_ERROR_NOT_FOUND );
return VFS_FALSE;
}
VFS_String strName;
VFS_Util_GetName( ( *iter2 ).second, strName );
if( strName.size() > VFS_MAX_NAME_LENGTH )
{
SetLastError( VFS_ERROR_INVALID_PARAMETER );
return VFS_FALSE;
}
}
// Make a list of the Directories to create.
typedef vector< VFS_String > NameMap;
NameMap Dirs;
for( VFS_FileNameMap::const_iterator iter3 = Files.begin(); iter3 != Files.end(); iter3++ )
{
VFS_String strDir;
VFS_Util_GetPath( ( *iter3 ).second, strDir );
strDir = ToLower( strDir );
if( strDir != VFS_TEXT( "" ) && find( Dirs.begin(), Dirs.end(), strDir ) == Dirs.end() )
{
// Add the top-level Dirs.
while( strDir.rfind( VFS_PATH_SEPARATOR ) != VFS_String::npos )
{
if( find( Dirs.begin(), Dirs.end(), strDir ) != Dirs.end() )
break;
Dirs.push_back( ToLower( strDir ) );
if( strDir.size() > VFS_MAX_NAME_LENGTH )
{
SetLastError( VFS_ERROR_INVALID_PARAMETER );
return VFS_FALSE;
}
strDir = strDir.substr( 0, strDir.rfind( VFS_PATH_SEPARATOR ) );
}
if( find( Dirs.begin(), Dirs.end(), strDir ) == Dirs.end() )
{
Dirs.push_back( ToLower( strDir ) );
if( strDir.size() > VFS_MAX_NAME_LENGTH )
{
SetLastError( VFS_ERROR_INVALID_PARAMETER );
return VFS_FALSE;
}
}
}
}
// (Re)create the Target File.
VFS_Handle hFile = VFS_File_Create( Info.strPath + VFS_TEXT( "." ) + VFS_ARCHIVE_FILE_EXTENSION, VFS_READ | VFS_WRITE );
if( hFile == VFS_INVALID_HANDLE_VALUE )
return VFS_FALSE;
// Write the Header.
ARCHIVE_HEADER Header;
memcpy( Header.ID, ARCHIVE_ID, sizeof( ARCHIVE_ID ) );
Header.wVersion = VFS_VERSION;
Header.dwNumFilters = ( VFS_DWORD )Filters.size();
Header.dwNumDirs = ( VFS_DWORD )Dirs.size();
Header.dwNumFiles = ( VFS_DWORD )Files.size();
VFS_DWORD dwWritten;
if( !VFS_File_Write( hFile, ( const VFS_BYTE* ) &Header, sizeof( ARCHIVE_HEADER ), &dwWritten ) )
{
VFS_File_Close( hFile );
return VFS_FALSE;
}
// Write the Filters.
for( VFS_FilterList::iterator iter4 = Filters.begin(); iter4 != Filters.end(); iter4++ )
{
ARCHIVE_FILTER Filter;
strcpy( Filter.szName, ToLower( ( *iter4 )->GetName() ).c_str() );
if( !VFS_File_Write( hFile, ( const VFS_BYTE* ) &Filter, sizeof( ARCHIVE_FILTER ) ) )
{
VFS_File_Close( hFile );
return VFS_FALSE;
}
}
// Write the Directories.
for( NameMap::iterator iter5 = Dirs.begin(); iter5 != Dirs.end(); iter5++ )
{
ARCHIVE_DIR Dir;
// Get the Name of the Dir and add it.
VFS_String strName;
VFS_Util_GetName( *iter5, strName );
strcpy( Dir.szName, ToLower( strName ).c_str() );
// Remove the <pathsep> and the Name from the path; the rest should be the Parent Directory.
if( ( *iter5 ).find( VFS_PATH_SEPARATOR ) != VFS_String::npos )
{
// Get the Name of the Parent Directory.
VFS_String strParentDir = ( *iter5 ).substr( 0, ( *iter5 ).rfind( VFS_PATH_SEPARATOR ) );
// Get the Index of the Parent Directory.
assert( find( Dirs.begin(), Dirs.end(), ToLower( strParentDir ) ) != Dirs.end() );
Dir.dwParentIndex = ( VFS_DWORD )( find( Dirs.begin(), Dirs.end(), ToLower( strParentDir ) ) - Dirs.begin() );
}
else
Dir.dwParentIndex = DIR_INDEX_ROOT;
if( !VFS_File_Write( hFile, ( const VFS_BYTE* ) &Dir, sizeof( ARCHIVE_DIR ) ) )
{
VFS_File_Close( hFile );
return VFS_FALSE;
}
}
// Get the starting offset for the file data.
VFS_DWORD dwOffset = sizeof( ARCHIVE_HEADER ) + Header.dwNumFilters * sizeof( ARCHIVE_FILTER ) +
Header.dwNumDirs * sizeof( ARCHIVE_DIR ) + Header.dwNumFiles * sizeof( ARCHIVE_FILE );
// Let the Filters store the configuration Data.
for( VFS_FilterList::iterator iter6 = Filters.begin(); iter6 != Filters.end(); iter6++ )
{
// Setup diverse global Variables.
g_ToBuffer.clear();
// Call the Saver Proc.
if( !( *iter6 )->SaveConfigData( Writer ) )
{
VFS_File_Close( hFile );
return VFS_FALSE;
}
// Save it.
VFS_DWORD dwPos = VFS_File_Tell( hFile );
VFS_File_Seek( hFile, dwOffset, VFS_SET );
VFS_File_Write( hFile, &*g_ToBuffer.begin(), ( VFS_DWORD )g_ToBuffer.size() );
VFS_File_Seek( hFile, dwPos, VFS_SET );
dwOffset += ( VFS_DWORD )g_ToBuffer.size();
}
// Write the Files.
for( VFS_FileNameMap::const_iterator iter7 = Files.begin(); iter7 != Files.end(); iter7++ )
{
// Prepare the record.
ARCHIVE_FILE File;
// Get the Name of the File and add it.
VFS_String strName;
VFS_Util_GetName( ( *iter7 ).second, strName );
strcpy( File.szName, ToLower( strName ).c_str() );
// Get the Parent Dir ID.
if( ( *iter7 ).second.find( VFS_PATH_SEPARATOR ) != VFS_String::npos )
{
// Get the Name of the Parent Directory.
VFS_String strParentDir = ( *iter7 ).second.substr( 0, ( *iter7 ).second.rfind( VFS_PATH_SEPARATOR ) );
// Get the Index of the Parent Directory.
assert( find( Dirs.begin(), Dirs.end(), ToLower( strParentDir ) ) != Dirs.end() );
File.dwDirIndex = ( VFS_DWORD )( find( Dirs.begin(), Dirs.end(), ToLower( strParentDir ) ) - Dirs.begin() );
}
else
File.dwDirIndex = DIR_INDEX_ROOT;
// Open the Source File.
VFS_Handle hSrc = VFS_File_Open( ( *iter7 ).first, VFS_READ );
if( hSrc == VFS_INVALID_HANDLE_VALUE )
{
VFS_File_Close( hFile );
return VFS_FALSE;
}
// Store the uncompressed size.
File.dwUncompressedSize = VFS_File_GetSize( hSrc );
// Setup diverse global Variables.
g_FromBuffer.clear();
g_ToBuffer.clear();
// Read in the File.
VFS_DWORD dwRead;
g_FromPos = 0;
do
{
if( !VFS_File_Read( hSrc, Chunk, FILE_COPY_CHUNK_SIZE, &dwRead ) )
{
VFS_File_Close( hSrc );
VFS_File_Close( hFile );
return VFS_FALSE;
}
g_FromBuffer.reserve( g_FromBuffer.size() + dwRead );
for( VFS_DWORD dwIndex = 0; dwIndex < dwRead; dwIndex++ )
g_FromBuffer.push_back( Chunk[ dwIndex ] );
}
while( dwRead > 0 );
// Close the File.
VFS_File_Close( hSrc );
// Call the Filters.
VFS_EntityInfo Info;
VFS_File_GetInfo( ( *iter7 ).first, Info );
for( VFS_FilterList::iterator iter8 = Filters.begin(); iter8 != Filters.end(); iter8++ )
{
g_FromPos = 0;
if( !( *iter8 )->Encode( Reader, Writer, Info ) )
{
VFS_ErrorCode eError = VFS_GetLastError();
if( eError == VFS_ERROR_NONE )
eError = VFS_ERROR_GENERIC;
SetLastError( eError );
VFS_File_Close( hFile );
return VFS_FALSE;
}
g_FromBuffer = g_ToBuffer;
g_ToBuffer.clear();
}
// Store the final Result.
VFS_DWORD dwPos = VFS_File_Tell( hFile );
VFS_File_Seek( hFile, dwOffset, VFS_SET );
VFS_File_Write( hFile, &*g_FromBuffer.begin(), ( VFS_DWORD )g_FromBuffer.size() );
File.dwCompressedSize = ( VFS_DWORD )g_FromBuffer.size();
VFS_File_Seek( hFile, dwPos, VFS_SET );
dwOffset += File.dwCompressedSize;
if( !VFS_File_Write( hFile, ( const VFS_BYTE* ) &File, sizeof( ARCHIVE_FILE ) ) )
{
VFS_File_Close( hFile );
return VFS_FALSE;
}
}
// Close the File.
if( !VFS_File_Close( hFile ) )
return VFS_FALSE;
return VFS_TRUE;
}