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Serializable is being deprecated in PHP 8.1

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This commit is contained in:
terrafrost 2021-07-22 08:51:51 -05:00
parent 05539a72be
commit 5e290492d1
2 changed files with 54 additions and 30 deletions
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53
phpseclib/Math/BigInteger.php
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@ -39,7 +39,7 @@ use phpseclib3\Exception\BadConfigurationException;
* @author Jim Wigginton <terrafrost@php.net>
* @access public
*/
class BigInteger implements \Serializable
class BigInteger
{
/**
* Main Engine
@ -69,6 +69,24 @@ class BigInteger implements \Serializable
*/
private $value;
/**
* Mode independent value used for serialization.
*
* @see self::__sleep()
* @see self::__wakeup()
* @var string
*/
private $hex;
/**
* Precision (used only for serialization)
*
* @see self::__sleep()
* @see self::__wakeup()
* @var int
*/
private $precision;
/**
* Sets engine type.
*
@ -390,39 +408,38 @@ class BigInteger implements \Serializable
*
* Will be called, automatically, when serialize() is called on a BigInteger object.
*
* phpseclib 1.0 serialized strings look like this:
* O:15:"Math_BigInteger":1:{s:3:"hex";s:18:"00ab54a98ceb1f0ad2";}
* __sleep() / __wakeup() have been around since PHP 4.0
*
* phpseclib 3.0 serialized strings look like this:
* C:25:"phpseclib\Math\BigInteger":42:{a:1:{s:3:"hex";s:18:"00ab54a98ceb1f0ad2";}}
* \Serializable was introduced in PHP 5.1 and deprecated in PHP 8.1:
* https://wiki.php.net/rfc/phase_out_serializable
*
* __serialize() / __unserialize() were introduced in PHP 7.4:
* https://wiki.php.net/rfc/custom_object_serialization
*
* @return string
*/
public function serialize()
public function __sleep()
{
$val = ['hex' => $this->toHex(true)];
$precision = $this->value->getPrecision();
if ($precision > 0) {
$val['precision'] = $precision;
$this->hex = $this->toHex(true);
$vars = ['hex'];
if ($this->getPrecision() > 0) {
$vars[] = 'precision';
}
return serialize($val);
return $vars;
}
/**
* Serialize
*
* Will be called, automatically, when unserialize() is called on a BigInteger object.
*
* @param string $serialized
*/
public function unserialize($serialized)
public function __wakeup()
{
$r = unserialize($serialized);
$temp = new static($r['hex'], -16);
$temp = new static($this->hex, -16);
$this->value = $temp->value;
if (isset($r['precision'])) {
if ($this->precision > 0) {
// recalculate $this->bitmask
$this->setPrecision($r['precision']);
$this->setPrecision($this->precision);
}
}

31
phpseclib/Math/BigInteger/Engines/Engine.php
View File

@ -28,7 +28,7 @@ use phpseclib3\Common\Functions\Strings;
* @author Jim Wigginton <terrafrost@php.net>
* @access public
*/
abstract class Engine implements \Serializable
abstract class Engine
{
/**
* Holds the BigInteger's value
@ -65,6 +65,15 @@ abstract class Engine implements \Serializable
*/
protected $reduce;
/**
* Mode independent value used for serialization.
*
* @see self::__sleep()
* @see self::__wakeup()
* @var string
*/
protected $hex;
/**
* Default constructor
*
@ -295,31 +304,29 @@ abstract class Engine implements \Serializable
*
* @return string
*/
public function serialize()
public function __sleep()
{
$val = ['hex' => $this->toHex(true)];
$this->hex = $this->toHex(true);
$vars = ['hex'];
if ($this->precision > 0) {
$val['precision'] = $this->precision;
$vars[] = 'precision';
}
return serialize($val);
return $vars;
}
/**
* Serialize
*
* Will be called, automatically, when unserialize() is called on a BigInteger object.
*
* @param string $serialized
*/
public function unserialize($serialized)
public function __wakeup()
{
$r = unserialize($serialized);
$temp = new static($r['hex'], -16);
$temp = new static($this->hex, -16);
$this->value = $temp->value;
$this->is_negative = $temp->is_negative;
if (isset($r['precision'])) {
if ($this->precision > 0) {
// recalculate $this->bitmask
$this->setPrecision($r['precision']);
$this->setPrecision($this->precision);
}
}