Your IP : 216.73.216.30
<?php
namespace YOOtheme\Theme\Joomla;
class StreamWrapper
{
/**
* @var array|false
*/
protected $stat;
/**
* @var int
*/
protected $length;
/**
* @var int
*/
protected $position;
/**
* @var string
*/
protected $output;
/**
* @var string[]
*/
protected static $outputs = [];
/**
* @var callable[]
*/
protected static $objects = [];
/**
* Retrieve information about a file.
*/
public function url_stat($path)
{
if (is_callable($object = static::getObject($path))) {
static::setOutput($path, $object($path));
}
if (is_string($output = static::getOutput($path))) {
return static::getStat($output);
}
return false;
}
/**
* Function to open file or url
*/
public function stream_open($path)
{
if (!is_string($output = static::getOutput($path))) {
return false;
}
$this->stat = static::getStat($output);
$this->length = strlen($output);
$this->position = 0;
$this->output = $output;
return true;
}
/**
* Read stream
*/
public function stream_read($count)
{
$result = substr($this->output, $this->position, $count);
$this->position += $count;
return $result;
}
/**
* Retrieve information about a file resource
*/
public function stream_stat()
{
return $this->stat;
}
/**
* Function to get the current position of the stream
*/
public function stream_tell()
{
return $this->position;
}
/**
* Function to test for end of file pointer
*/
public function stream_eof()
{
return $this->position >= $this->length;
}
/**
* The read write position updates in response to $offset and $whence
*/
public function stream_seek($offset, $whence)
{
switch ($whence) {
case \SEEK_SET:
if ($offset < $this->length && $offset >= 0) {
$this->position = $offset;
return true;
}
break;
case \SEEK_CUR:
if ($offset >= 0) {
$this->position += $offset;
return true;
}
break;
case \SEEK_END:
if ($this->length + $offset >= 0) {
$this->position = $this->length + $offset;
return true;
}
break;
}
return false;
}
/**
* Change stream options
*/
public function stream_set_option()
{
return true;
}
/**
* Sets a object
*/
public static function setObject($object)
{
$key = spl_object_hash($object);
static::$objects[$key] = $object;
return $key;
}
/**
* Gets an object
*/
protected static function getObject($path)
{
$path = substr($path, strpos($path, '://') + 3);
foreach (static::$objects as $key => $object) {
if (str_starts_with($path, $key)) {
return $object;
}
}
return null;
}
/**
* Sets an output
*/
protected static function setOutput($path, $output)
{
static::$outputs[$path] = $output;
}
/**
* Gets an output
*/
protected static function getOutput($path)
{
return isset(static::$outputs[$path]) ? static::$outputs[$path] : null;
}
/**
* Retrieve file information for a string
*/
protected static function getStat($string)
{
$time = time();
$length = strlen($string);
return [
'dev' => 0,
'ino' => 0,
'mode' => 0,
'nlink' => 1,
'uid' => 0,
'gid' => 0,
'rdev' => 0,
'size' => $length,
'atime' => $time,
'mtime' => $time,
'ctime' => $time,
'blksize' => '512',
'blocks' => ceil($length / 512),
];
}
}