* @version 1.0.1 (June 30, 2004)
* @package AutoIndex
*/
class DirectoryList implements Iterator
{
/**
* @var string The directory this object represents
*/
protected $dir_name;
/**
* @var array The list of filesname in this directory (strings)
*/
protected $contents;
/**
* @var int The size of the $contents array
*/
private $list_count;
//begin implementation of Iterator
/**
* @var int $i is used to keep track of the current pointer inside the array when implementing Iterator
*/
private $i;
/**
* @return string The element $i currently points to in the array
*/
public function current()
{
if ($this -> i < count($this -> contents))
{
return $this -> contents[$this -> i];
}
return false;
}
/**
* Increments the internal array pointer, then returns the value
* at that new position.
*
* @return string The current position of the pointer in the array
*/
public function next()
{
$this -> i++;
return $this -> current();
}
/**
* Sets the internal array pointer to 0
*/
public function rewind()
{
$this -> i = 0;
}
/**
* @return bool True if $i is a valid array index
*/
public function valid()
{
return ($this -> i < count($this -> contents));
}
/**
* @return int Returns $i, the key of the array
*/
public function key()
{
return $this -> i;
}
//end implementation of Iterator
/**
* @return int The total size in bytes of the folder (recursive)
*/
public function size_recursive()
{
$total_size = 0;
foreach ($this as $current)
{
$t = $this -> dir_name . $current;
if (@is_dir($t))
{
if ($current != '..')
{
$temp = new DirectoryList($t);
$total_size += $temp -> size_recursive();
}
}
else
{
$total_size += @filesize($t);
}
}
return $total_size;
}
/**
* @return int The total number of files in this directory (recursive)
*/
public function num_files()
{
$count = 0;
foreach ($this as $current)
{
$t = $this -> dir_name . $current;
if (@is_dir($t))
{
if ($current != '..')
{
$temp = new DirectoryList($t);
$count += $temp -> num_files();
}
}
else
{
$count++;
}
}
return $count;
}
/**
* @param string $string The string to search for
* @param array $array The array to search
* @return bool True if $string matches any elements in $array
*/
public static function match_in_array($string, &$array)
{
$string = Item::get_basename($string);
static $replace = array(
'\*' => '[^\/]*',
'\+' => '[^\/]+',
'\?' => '[^\/]?');
foreach ($array as $m)
{
if (preg_match('/^' . strtr(preg_quote(Item::get_basename($m), '/'), $replace) . '$/i', $string))
{
return true;
}
}
return false;
}
/**
* @param string $t The file or folder name
* @param bool $is_file
* @return bool True if $t is listed as a hidden file
*/
public static function is_hidden($t, $is_file = true)
{
$t = Item::get_basename($t);
if ($t == '.' || $t == '')
{
return true;
}
global $you;
if ($you -> level >= ADMIN)
//allow admins to view hidden files
{
return false;
}
global $hidden_files, $show_only_these_files;
if ($is_file && count($show_only_these_files))
{
return (!self::match_in_array($t, $show_only_these_files));
}
return self::match_in_array($t, $hidden_files);
}
/**
* @param string $var The key to look for
* @return mixed The data stored at the key
*/
public function __get($var)
{
if (isset($this -> $var))
{
return $this -> $var;
}
throw new ExceptionDisplay('Variable ' . Url::html_output($var)
. ' not set in DirectoryList class.');
}
/**
* @param string $path
*/
public function __construct($path)
{
$path = Item::make_sure_slash($path);
if (!@is_dir($path))
{
throw new ExceptionDisplay('Directory ' . Url::html_output($path)
. ' does not exist.');
}
$temp_list = @scandir($path);
if ($temp_list === false)
{
throw new ExceptionDisplay('Error reading from directory '
. Url::html_output($path) . '.');
}
$this -> dir_name = $path;
$this -> contents = array();
foreach ($temp_list as $t)
{
if (!self::is_hidden($t, !@is_dir($path . $t)))
{
$this -> contents[] = $t;
}
}
$this -> list_count = count($this -> contents);
$this -> i = 0;
}
}
?>