refactoring for dependency injection and testability.

laravel/crypter.php

@@ -1,126 +0,0 @@
-<?php namespace Laravel;
-
-class Crypter {
-
-	/**
-	 * The encryption cipher.
-	 *
-	 * @var string
-	 */
-	public $cipher;
-
-	/**
-	 * The encryption mode.
-	 *
-	 * @var string
-	 */
-	public $mode;
-
-	/**
-	 * The encryption key.
-	 *
-	 * @var string
-	 */
-	public $key;
-
-	/**
-	 * Create a new Crypter instance.
-	 *
-	 * @param  string  $cipher
-	 * @param  string  $mode
-	 * @param  string  $key
-	 * @return void
-	 */
-	public function __construct($cipher, $mode, $key)
-	{
-		$this->cipher = $cipher;
-		$this->mode = $mode;
-		$this->key = $key;
-
-		if (trim((string) $this->key) === '')
-		{
-			throw new \Exception('The encryption class may not be used without an encryption key.');
-		}
-	}
-
-	/**
-	 * Create a new Crypter instance.
-	 *
-	 * Any cipher and mode supported by Mcrypt may be specified. For more information regarding
-	 * the supported ciphers and modes, check out: http://php.net/manual/en/mcrypt.ciphers.php
-	 *
-	 * By default, the AES-256 cipher will be used in CBC mode.
-	 *
-	 * @param  string  $cipher
-	 * @param  string  $mode
-	 * @param  string  $key
-	 * @return Crypt
-	 */
-	public static function make($cipher = MCRYPT_RIJNDAEL_256, $mode = 'cbc', $key = null)
-	{
-		return new static($cipher, $mode, (is_null($key)) ? Config::get('application.key') : $key);
-	}
-
-	/**
-	 * Encrypt a string using Mcrypt.
-	 *
-	 * @param  string  $value
-	 * @return string
-	 */
-	public function encrypt($value)
-	{
-		$iv = mcrypt_create_iv($this->iv_size(), $this->randomizer());
-
-		return base64_encode($iv.mcrypt_encrypt($this->cipher, $this->key, $value, $this->mode, $iv));
-	}
-
-	/**
-	 * Get the random number source available to the OS.
-	 *
-	 * @return int
-	 */
-	protected function randomizer()
-	{
-		if (defined('MCRYPT_DEV_URANDOM'))
-		{
-			return MCRYPT_DEV_URANDOM;
-		}
-		elseif (defined('MCRYPT_DEV_RANDOM'))
-		{
-			return MCRYPT_DEV_RANDOM;
-		}
-
-		return MCRYPT_RAND;
-	}
-
-	/**
-	 * Decrypt a string using Mcrypt.
-	 *
-	 * @param  string  $value
-	 * @return string
-	 */
-	public function decrypt($value)
-	{
-		if ( ! is_string($value = base64_decode($value, true)))
-		{
-			throw new \Exception('Decryption error. Input value is not valid base64 data.');
-		}
-
-		list($iv, $value) = array(substr($value, 0, $this->iv_size()), substr($value, $this->iv_size()));
-
-		return rtrim(mcrypt_decrypt($this->cipher, $this->key, $value, $this->mode, $iv), "\0");
-	}
-
-	/**
-	 * Get the input vector size for the cipher and mode.
-	 *
-	 * Different ciphers and modes use varying lengths of input vectors.
-	 *
-	 * @return int
-	 */
-	private function iv_size()
-	{
-		return mcrypt_get_iv_size($this->cipher, $this->mode);
-	}
-
-}