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refactoring container for speed.

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This commit is contained in:
Taylor Otwell
2011-10-05 18:32:48 -05:00
parent 4263203dda
commit 71b0ab8b8d
32 changed files with 1221 additions and 1486 deletions
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68
laravel/security/crypter.php
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@@ -1,5 +1,12 @@
<?php namespace Laravel\Security;
use Laravel\Config;
if (trim(Config::get('application.key')) === '')
{
throw new \Exception('The encryption class may not be used without an encryption key.');
}
class Crypter {
/**
@@ -7,44 +14,14 @@ class Crypter {
*
* @var string
*/
public $cipher;
protected static $cipher = MCRYPT_RIJNDAEL_256;
/**
* The encryption mode.
*
* @var string
*/
public $mode;
/**
* The encryption key.
*
* @var string
*/
public $key;
/**
* Create a new Crypter instance.
*
* A valid cipher and mode supported by the Mcrypt extension must be given to the constructor.
* Also, an encryption key (typically from the application configuration) must be specified.
*
* @param string $cipher
* @param string $mode
* @param string $key
* @return void
*/
public function __construct($cipher, $mode, $key)
{
$this->key = $key;
$this->mode = $mode;
$this->cipher = $cipher;
if (trim((string) $this->key) === '')
{
throw new \Exception('The encryption class may not be used without an encryption key.');
}
}
protected static $mode = 'cbc';
/**
* Encrypt a string using Mcrypt.
@@ -60,10 +37,10 @@ class Crypter {
* @param string $value
* @return string
*/
public function encrypt($value)
public static function encrypt($value)
{
// Determine the most appropriate random number generator for the operating
// system and environment the application is running on.
// Determine the most appropriate random number generator for the
// OS and system and environment the application is running on.
if (defined('MCRYPT_DEV_URANDOM'))
{
$randomizer = MCRYPT_DEV_URANDOM;
@@ -77,16 +54,14 @@ class Crypter {
$randomizer = MCRYPT_RAND;
}
$iv = mcrypt_create_iv($this->iv_size(), $randomizer);
$iv = mcrypt_create_iv(static::iv_size(), $randomizer);
return base64_encode($iv.mcrypt_encrypt($this->cipher, $this->key, $value, $this->mode, $iv));
return base64_encode($iv.mcrypt_encrypt(static::$cipher, Config::get('application.key'), $value, static::$mode, $iv));
}
/**
* Decrypt a string using Mcrypt.
*
* The string will be decrypted using the cipher and mode specified when the crypter was created.
*
* <code>
* // Decrypt a string using the Mcrypt PHP extension
* $decrypted = Crypter::decrypt($secret);
@@ -95,7 +70,7 @@ class Crypter {
* @param string $value
* @return string
*/
public function decrypt($value)
public static function decrypt($value)
{
// Since all encrypted strings generated by this class are base64 encoded, we will
// first attempt to base64 decode the string. If we can't do it, we'll bail out.
@@ -104,10 +79,13 @@ class Crypter {
throw new \Exception('Decryption error. Input value is not valid base64 data.');
}
// Extract the input vector and the encrypted string from the value
list($iv, $value) = array(substr($value, 0, $this->iv_size()), substr($value, $this->iv_size()));
// Extract the input vector and the encrypted string from the value.
// These will be used by Mcrypt to properly decrypt the value.
$iv = substr($value, 0, static::iv_size());
return rtrim(mcrypt_decrypt($this->cipher, $this->key, $value, $this->mode, $iv), "\0");
$value = substr($value, static::iv_size());
return rtrim(mcrypt_decrypt(static::$cipher, Config::get('application.key'), $value, static::$mode, $iv), "\0");
}
/**
@@ -117,9 +95,9 @@ class Crypter {
*
* @return int
*/
private function iv_size()
protected static function iv_size()
{
return mcrypt_get_iv_size($this->cipher, $this->mode);
return mcrypt_get_iv_size(static::$cipher, static::$mode);
}
}