<?php
/**
* PHPCompatibility, an external standard for PHP_CodeSniffer.
*
* @package PHPCompatibility
* @copyright 2012-2019 PHPCompatibility Contributors
* @license https://opensource.org/licenses/LGPL-3.0 LGPL3
* @link https://github.com/PHPCompatibility/PHPCompatibility
*/
namespace PHPCompatibility\Sniffs\ParameterValues;
use PHPCompatibility\AbstractNewFeatureSniff;
use PHP_CodeSniffer_File as File;
/**
* Detect the use of newly introduced hash algorithms.
*
* PHP version 5.2+
*
* @link https://www.php.net/manual/en/function.hash-algos.php#refsect1-function.hash-algos-changelog
*
* @since 7.0.7
* @since 7.1.0 Now extends the `AbstractNewFeatureSniff` instead of the base `Sniff` class..
*/
class NewHashAlgorithmsSniff extends AbstractNewFeatureSniff
{
/**
* A list of new hash algorithms, not present in older versions.
*
* The array lists : version number with false (not present) or true (present).
* If's sufficient to list the first version where the hash algorithm appears.
*
* @since 7.0.7
*
* @var array(string => array(string => bool))
*/
protected $newAlgorithms = array(
'md2' => array(
'5.2' => false,
'5.3' => true,
),
'ripemd256' => array(
'5.2' => false,
'5.3' => true,
),
'ripemd320' => array(
'5.2' => false,
'5.3' => true,
),
'salsa10' => array(
'5.2' => false,
'5.3' => true,
),
'salsa20' => array(
'5.2' => false,
'5.3' => true,
),
'snefru256' => array(
'5.2' => false,
'5.3' => true,
),
'sha224' => array(
'5.2' => false,
'5.3' => true,
),
'joaat' => array(
'5.3' => false,
'5.4' => true,
),
'fnv132' => array(
'5.3' => false,
'5.4' => true,
),
'fnv164' => array(
'5.3' => false,
'5.4' => true,
),
'gost-crypto' => array(
'5.5' => false,
'5.6' => true,
),
'sha512/224' => array(
'7.0' => false,
'7.1' => true,
),
'sha512/256' => array(
'7.0' => false,
'7.1' => true,
),
'sha3-224' => array(
'7.0' => false,
'7.1' => true,
),
'sha3-256' => array(
'7.0' => false,
'7.1' => true,
),
'sha3-384' => array(
'7.0' => false,
'7.1' => true,
),
'sha3-512' => array(
'7.0' => false,
'7.1' => true,
),
'crc32c' => array(
'7.3' => false,
'7.4' => true,
),
);
/**
* Returns an array of tokens this test wants to listen for.
*
* @since 7.0.7
*
* @return array
*/
public function register()
{
return array(\T_STRING);
}
/**
* Processes this test, when one of its tokens is encountered.
*
* @since 7.0.7
*
* @param \PHP_CodeSniffer_File $phpcsFile The file being scanned.
* @param int $stackPtr The position of the current token in the
* stack passed in $tokens.
*
* @return void
*/
public function process(File $phpcsFile, $stackPtr)
{
$algo = $this->getHashAlgorithmParameter($phpcsFile, $stackPtr);
if (empty($algo) || \is_string($algo) === false) {
return;
}
// Bow out if not one of the algorithms we're targetting.
if (isset($this->newAlgorithms[$algo]) === false) {
return;
}
// Check if the algorithm used is new.
$itemInfo = array(
'name' => $algo,
);
$this->handleFeature($phpcsFile, $stackPtr, $itemInfo);
}
/**
* Get the relevant sub-array for a specific item from a multi-dimensional array.
*
* @since 7.1.0
*
* @param array $itemInfo Base information about the item.
*
* @return array Version and other information about the item.
*/
public function getItemArray(array $itemInfo)
{
return $this->newAlgorithms[$itemInfo['name']];
}
/**
* Get the error message template for this sniff.
*
* @since 7.1.0
*
* @return string
*/
protected function getErrorMsgTemplate()
{
return 'The %s hash algorithm is not present in PHP version %s or earlier';
}
}