/**
	 * Creates a new FileInfo from an existing file. Filter manages how this
	 * information will be handled, manipulated or displayed.
	 *
	 * @param string $source Filename to gather information on.
	 * @param string $DefaultFilter Associated directory filter.
	 * @return FileInfo
	 */
	function FileInfo($source, $DefaultFilter = 'Default')
	{
		global $user_root;
		if (!file_exists($source))
			Error("FileInfo: File/Directory does not exist. ({$source})<br/>\n");
		$this->owned = strlen(strstr($source, $user_root)) > 0;
		$this->bitpos = 0;
		$this->path = $source;
		$this->dir = dirname($source);
		$this->filename = basename($source);
		$this->show = true;

		$finfo = $this->dir.'/.'.$this->filename;
		if (file_exists($finfo))
			$this->info = @unserialize(file_get_contents($finfo));
		else $this->info = array();
		$this->GetFilter($source, $DefaultFilter);
		if (is_dir($source)) $this->type = 'folder';
		if (!$this->Filter->GetInfo($this)) $this->show = false;
	}

	/**
	 * Returns the filter that was explicitely set on this object, object's
	 * directory, or fall back on the default filter.
	 *
	 * @param string $path Path to file to get filter of.
	 * @param string $default Default filter to fall back on.
	 * @return DirFilter
	 */
	function GetFilter($path, $default = 'Default')
	{
		if (is_file($path))
		{
			$dirname = substr(strrchr('/'.$this->dir, '/'), 1);
			$dinfo = dirname($path).'/../.'.$dirname;
			if (file_exists($dinfo))
			{
				$dinfo = unserialize(file_get_contents($dinfo));
				$this->info = array_merge($dinfo, $this->info);
			}
		}
		if (isset($this->info['type']))
		{
			$name = $this->info['type'];
			if (class_exists("Filter{$name}"))
			{
				$objname = "Filter$name";
				return $this->Filter = new $objname();
			}
		}

		if (isset($default))
		{
			$name = $default;
			if (class_exists("Filter$name"))
			{
				$objname = "Filter$name";
				return $this->Filter = new $objname();
			}
		}
		return $this->Filter = new FilterDefault();
	}