Hash::murmur() - Code Metrics - Inspection of "Fix: silenced WorkTest" - caffeina-core/core - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 4a7f99...ceaa03 )

by Stefano

created 2016-05-04 08:23 UTC

Hash::murmur() F

↳ Parent: Hash

Complexity

Conditions	20
Paths	> 20000

Size

Total Lines	46
Code Lines	42

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	20
eloc	42
c	1
b	0
f	0
nc	104000
nop	3
dl	0
loc	46
rs	2.6285

How to fix Complexity

<?php

/**
 * Hash
 *
 * Hashing shorthands.
 *
 * @package core
 * @author [email protected]
 * @copyright Caffeina srl - 2015 - http://caffeina.it
 */

class Hash {
namespace YourVendor;

class YourClass { }
	use Module;

	/**
	 * Create ah hash for payload
	 * @param  mixed $payload The payload string/object/array
	 * @param  integer $method  The hashing method, default is "md5"
	 * @return string          The hash string
	 */
	public static function make($payload, $method = 'md5') {
		return $method == 'murmur' ? static::murmur(serialize($payload)) : hash($method, serialize($payload));
	}

	/**
	 * Verify if given payload matches hash
	 * @param  mixed $payload  The payload string/object/array
	 * @param  string $hash    The hash string
	 * @param  integer $method The hashing method
	 * @return bool            Returns `true` if payload matches hash
	 */
	public static function verify($payload, $hash, $method = 'md5') {
		return static::make($payload, $method) == $hash;
	}

	/**
	 * List registered hashing algorithms
	 *
	 * @method methods
	 *
	 * @return array   Array containing the list of supported hashing algorithms.
	 */
	public static function methods() {
    // Merge PHP provided algos with ours (murmur)
		return array_merge(hash_algos(), ['murmur','murmurhash3']);
	}

	/**
	 * Check if an alghoritm is registered in current PHP
	 *
	 * @method can
	 *
	 * @param  string $algo The hashing algorithm name
	 *
	 * @return bool
	 */
	public static function can($algo) {
    // Faster than : in_array(explode(',',implode(',',static::methods())))
		return strpos(implode(',',static::methods()).',', "$algo,") !== false;
	}

	/**
	 * Static magic for creating hashes with a specified algorithm.
	 *
	 * See [hash-algos](http://php.net/manual/it/function.hash-algos.php) for a list of algorithms
	 */
	public static function __callStatic($method, $params) {
		return self::make(current($params), $method);
	}

	public static function uuid($type = 4, $namespace = '', $name = '') {
		switch ($type) {
		case 3:if (preg_match('/^\{?[0-9a-f]{8}\-?[0-9a-f]{4}\-?[0-9a-f]{4}\-?' .
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
				'[0-9a-f]{4}\-?[0-9a-f]{12}\}?$/Si', $namespace) !== 1) {
				return false;
			}

			$nhex = str_replace(array('-', '{', '}'), '', $namespace);
			$nstr = '';for ($i = 0; $i < strlen($nhex); $i += 2) {
				$nstr .= chr(hexdec($nhex[$i] . $nhex[$i + 1]));
			}

			$hash = md5($nstr . $name);
			return sprintf('%08s-%04s-%04x-%04x-%12s',
				substr($hash, 0, 8), substr($hash, 8, 4),
				(hexdec(substr($hash, 12, 4)) & 0x0fff) | 0x3000,
				(hexdec(substr($hash, 16, 4)) & 0x3fff) | 0x8000,
				substr($hash, 20, 12));
		case 5:if (preg_match('/^\{?[0-9a-f]{8}\-?[0-9a-f]{4}\-?[0-9a-f]{4}\-?' .
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
				'[0-9a-f]{4}\-?[0-9a-f]{12}\}?$/Si', $namespace) !== 1) {
				return false;
			}

			$nhex = str_replace(array('-', '{', '}'), '', $namespace);
			$nstr = '';for ($i = 0; $i < strlen($nhex); $i += 2) {
				$nstr .= chr(hexdec($nhex[$i] . $nhex[$i + 1]));
			}

			$hash = sha1($nstr . $name);
			return sprintf('%08s-%04s-%04x-%04x-%12s',
				substr($hash, 0, 8), substr($hash, 8, 4),
				(hexdec(substr($hash, 12, 4)) & 0x0fff) | 0x5000,
				(hexdec(substr($hash, 16, 4)) & 0x3fff) | 0x8000,
				substr($hash, 20, 12));
		default:case 4:return sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
switch ($expr) {
    default:
        doSomething(); //right
        break;
}


switch ($expr) {
    default:

        doSomething(); //wrong
        break;
}
				mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff),
				mt_rand(0, 0x0fff) | 0x4000, mt_rand(0, 0x3fff) | 0x8000,
				mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff));
		}
	}

  public static function murmur($key, $seed = 0, $as_integer=false) {
		$key = (string) $key;
		$klen = strlen($key);
		$h1 = $seed;
		for ($i = 0, $bytes = $klen - ($remainder = $klen & 3); $i < $bytes;) {
			$k1 = ((ord($key[$i]) & 0xff))
			 | ((ord($key[++$i]) & 0xff) << 8)
			 | ((ord($key[++$i]) & 0xff) << 16)
			 | ((ord($key[++$i]) & 0xff) << 24);
			++$i;
			$k1 = (((($k1 & 0xffff) * 0xcc9e2d51)
				 + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) | 0x8000)) * 0xcc9e2d51) & 0xffff) << 16)))
			 & 0xffffffff;
			$k1 = $k1 << 15 | ($k1 >= 0 ? $k1 >> 17 : (($k1 & 0x7fffffff) >> 17) | 0x4000);
			$k1 = (((($k1 & 0xffff) * 0x1b873593) + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) | 0x8000))
				 * 0x1b873593) & 0xffff) << 16))) & 0xffffffff;
			$h1 ^= $k1;
			$h1 = $h1 << 13 | ($h1 >= 0 ? $h1 >> 19 : (($h1 & 0x7fffffff) >> 19) | 0x1000);
			$h1b = (((($h1 & 0xffff) * 5) + ((((($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000)) * 5)
				 & 0xffff) << 16))) & 0xffffffff;
			$h1 = ((($h1b & 0xffff) + 0x6b64) + ((((($h1b >= 0 ? $h1b >> 16 : (($h1b & 0x7fffffff) >> 16) | 0x8000))
				 + 0xe654) & 0xffff) << 16));
		}
		$k1 = 0;
		switch ($remainder) {
		case 3:$k1 ^= (ord($key[$i + 2]) & 0xff) << 16;
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
		case 2:$k1 ^= (ord($key[$i + 1]) & 0xff) << 8;
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
		case 1:$k1 ^= (ord($key[$i]) & 0xff);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
			$k1 = ((($k1 & 0xffff) * 0xcc9e2d51) + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) | 0x8000))
				 * 0xcc9e2d51) & 0xffff) << 16)) & 0xffffffff;
			$k1 = $k1 << 15 | ($k1 >= 0 ? $k1 >> 17 : (($k1 & 0x7fffffff) >> 17) | 0x4000);
			$k1 = ((($k1 & 0xffff) * 0x1b873593) + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) | 0x8000))
				 * 0x1b873593) & 0xffff) << 16)) & 0xffffffff;
			$h1 ^= $k1;
		}
		$h1 ^= $klen;
		$h1 ^= ($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000);
		$h1 = ((($h1 & 0xffff) * 0x85ebca6b) + ((((($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000))
			 * 0x85ebca6b) & 0xffff) << 16)) & 0xffffffff;
		$h1 ^= ($h1 >= 0 ? $h1 >> 13 : (($h1 & 0x7fffffff) >> 13) | 0x40000);
		$h1 = (((($h1 & 0xffff) * 0xc2b2ae35) + ((((($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000))
			 * 0xc2b2ae35) & 0xffff) << 16))) & 0xffffffff;
		$h1 ^= ($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) | 0x8000);

		return $as_integer ? $h1 : base_convert($h1 ,10, 32);
	}

  public static function random($bytes=9){
    return strtr(base64_encode(random_bytes($bytes)),'+/=','-_');
  }

}


1		<?php
2
3		/**
4		* Hash
5		*
6		* Hashing shorthands.
7		*
8		* @package core
9		* @author [email protected]
10		* @copyright Caffeina srl - 2015 - http://caffeina.it
11		*/
12
13		class Hash {
		0 ignored issues – show Coding Style Compatibility introduced 2016-04-13 17:37 UTC by Report Bug Copy Issue Report PSR1 recommends that each class must be in a namespace of at least one level to avoid collisions. You can fix this by adding a namespace to your class: namespace YourVendor; class YourClass { } When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries. Loading history...
14		use Module;
15
16		/**
17		* Create ah hash for payload
18		* @param mixed $payload The payload string/object/array
19		* @param integer $method The hashing method, default is "md5"
20		* @return string The hash string
21		*/
22		public static function make($payload, $method = 'md5') {
23		return $method == 'murmur' ? static::murmur(serialize($payload)) : hash($method, serialize($payload));
24		}
25
26		/**
27		* Verify if given payload matches hash
28		* @param mixed $payload The payload string/object/array
29		* @param string $hash The hash string
30		* @param integer $method The hashing method
31		* @return bool Returns `true` if payload matches hash
32		*/
33		public static function verify($payload, $hash, $method = 'md5') {
34		return static::make($payload, $method) == $hash;
35		}
36
37		/**
38		* List registered hashing algorithms
39		*
40		* @method methods
41		*
42		* @return array Array containing the list of supported hashing algorithms.
43		*/
44		public static function methods() {
45		// Merge PHP provided algos with ours (murmur)
46		return array_merge(hash_algos(), ['murmur','murmurhash3']);
47		}
48
49		/**
50		* Check if an alghoritm is registered in current PHP
51		*
52		* @method can
53		*
54		* @param string $algo The hashing algorithm name
55		*
56		* @return bool
57		*/
58		public static function can($algo) {
59		// Faster than : in_array(explode(',',implode(',',static::methods())))
60		return strpos(implode(',',static::methods()).',', "$algo,") !== false;
61		}
62
63		/**
64		* Static magic for creating hashes with a specified algorithm.
65		*
66		* See [hash-algos](http://php.net/manual/it/function.hash-algos.php) for a list of algorithms
67		*/
68		public static function __callStatic($method, $params) {
69		return self::make(current($params), $method);
70		}
71
72		public static function uuid($type = 4, $namespace = '', $name = '') {
73		switch ($type) {
74	View Code Duplication	case 3:if (preg_match('/^\{?[0-9a-f]{8}\-?[0-9a-f]{4}\-?[0-9a-f]{4}\-?' .
		0 ignored issues – show Coding Style introduced 2016-04-13 17:37 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
75		'[0-9a-f]{4}\-?[0-9a-f]{12}\}?$/Si', $namespace) !== 1) {
76		return false;
77		}
78
79		$nhex = str_replace(array('-', '{', '}'), '', $namespace);
80		$nstr = '';for ($i = 0; $i < strlen($nhex); $i += 2) {
81		$nstr .= chr(hexdec($nhex[$i] . $nhex[$i + 1]));
82		}
83
84		$hash = md5($nstr . $name);
85		return sprintf('%08s-%04s-%04x-%04x-%12s',
86		substr($hash, 0, 8), substr($hash, 8, 4),
87		(hexdec(substr($hash, 12, 4)) & 0x0fff) \| 0x3000,
88		(hexdec(substr($hash, 16, 4)) & 0x3fff) \| 0x8000,
89		substr($hash, 20, 12));
90	View Code Duplication	case 5:if (preg_match('/^\{?[0-9a-f]{8}\-?[0-9a-f]{4}\-?[0-9a-f]{4}\-?' .
		0 ignored issues – show Coding Style introduced 2016-04-13 17:37 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
91		'[0-9a-f]{4}\-?[0-9a-f]{12}\}?$/Si', $namespace) !== 1) {
92		return false;
93		}
94
95		$nhex = str_replace(array('-', '{', '}'), '', $namespace);
96		$nstr = '';for ($i = 0; $i < strlen($nhex); $i += 2) {
97		$nstr .= chr(hexdec($nhex[$i] . $nhex[$i + 1]));
98		}
99
100		$hash = sha1($nstr . $name);
101		return sprintf('%08s-%04s-%04x-%04x-%12s',
102		substr($hash, 0, 8), substr($hash, 8, 4),
103		(hexdec(substr($hash, 12, 4)) & 0x0fff) \| 0x5000,
104		(hexdec(substr($hash, 16, 4)) & 0x3fff) \| 0x8000,
105		substr($hash, 20, 12));
106		default:case 4:return sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
		0 ignored issues – show Coding Style introduced 2016-04-13 17:37 UTC by Report Bug Copy Issue Report The default body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a default statement must start on the line immediately following the statement. switch ($expr) { default: doSomething(); //right break; } switch ($expr) { default: doSomething(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-04-13 17:37 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-04-13 17:37 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
107		mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff),
108		mt_rand(0, 0x0fff) \| 0x4000, mt_rand(0, 0x3fff) \| 0x8000,
109		mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff));
110		}
111		}
112
113		public static function murmur($key, $seed = 0, $as_integer=false) {
114		$key = (string) $key;
115		$klen = strlen($key);
116		$h1 = $seed;
117		for ($i = 0, $bytes = $klen - ($remainder = $klen & 3); $i < $bytes;) {
118		$k1 = ((ord($key[$i]) & 0xff))
119		\| ((ord($key[++$i]) & 0xff) << 8)
120		\| ((ord($key[++$i]) & 0xff) << 16)
121		\| ((ord($key[++$i]) & 0xff) << 24);
122		++$i;
123		$k1 = (((($k1 & 0xffff) * 0xcc9e2d51)
124		+ ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) \| 0x8000)) * 0xcc9e2d51) & 0xffff) << 16)))
125		& 0xffffffff;
126		$k1 = $k1 << 15 \| ($k1 >= 0 ? $k1 >> 17 : (($k1 & 0x7fffffff) >> 17) \| 0x4000);
127		$k1 = (((($k1 & 0xffff) * 0x1b873593) + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) \| 0x8000))
128		* 0x1b873593) & 0xffff) << 16))) & 0xffffffff;
129		$h1 ^= $k1;
130		$h1 = $h1 << 13 \| ($h1 >= 0 ? $h1 >> 19 : (($h1 & 0x7fffffff) >> 19) \| 0x1000);
131		$h1b = (((($h1 & 0xffff) * 5) + ((((($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) \| 0x8000)) * 5)
132		& 0xffff) << 16))) & 0xffffffff;
133		$h1 = ((($h1b & 0xffff) + 0x6b64) + ((((($h1b >= 0 ? $h1b >> 16 : (($h1b & 0x7fffffff) >> 16) \| 0x8000))
134		+ 0xe654) & 0xffff) << 16));
135		}
136		$k1 = 0;
137		switch ($remainder) {
138		case 3:$k1 ^= (ord($key[$i + 2]) & 0xff) << 16;
		0 ignored issues – show Coding Style introduced 2016-04-13 17:37 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-04-13 17:37 UTC by Report Bug Copy Issue Report There must be a comment when fall-through is intentional in a non-empty case body Loading history...
139		case 2:$k1 ^= (ord($key[$i + 1]) & 0xff) << 8;
		0 ignored issues – show Coding Style introduced 2016-04-13 17:37 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2016-04-13 17:37 UTC by Report Bug Copy Issue Report There must be a comment when fall-through is intentional in a non-empty case body Loading history...
140		case 1:$k1 ^= (ord($key[$i]) & 0xff);
		0 ignored issues – show Coding Style introduced 2016-04-13 17:37 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
141		$k1 = ((($k1 & 0xffff) * 0xcc9e2d51) + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) \| 0x8000))
142		* 0xcc9e2d51) & 0xffff) << 16)) & 0xffffffff;
143		$k1 = $k1 << 15 \| ($k1 >= 0 ? $k1 >> 17 : (($k1 & 0x7fffffff) >> 17) \| 0x4000);
144		$k1 = ((($k1 & 0xffff) * 0x1b873593) + ((((($k1 >= 0 ? $k1 >> 16 : (($k1 & 0x7fffffff) >> 16) \| 0x8000))
145		* 0x1b873593) & 0xffff) << 16)) & 0xffffffff;
146		$h1 ^= $k1;
147		}
148		$h1 ^= $klen;
149		$h1 ^= ($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) \| 0x8000);
150		$h1 = ((($h1 & 0xffff) * 0x85ebca6b) + ((((($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) \| 0x8000))
151		* 0x85ebca6b) & 0xffff) << 16)) & 0xffffffff;
152		$h1 ^= ($h1 >= 0 ? $h1 >> 13 : (($h1 & 0x7fffffff) >> 13) \| 0x40000);
153		$h1 = (((($h1 & 0xffff) * 0xc2b2ae35) + ((((($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) \| 0x8000))
154		* 0xc2b2ae35) & 0xffff) << 16))) & 0xffffffff;
155		$h1 ^= ($h1 >= 0 ? $h1 >> 16 : (($h1 & 0x7fffffff) >> 16) \| 0x8000);
156
157		return $as_integer ? $h1 : base_convert($h1 ,10, 32);
158		}
159
160		public static function random($bytes=9){
161		return strtr(base64_encode(random_bytes($bytes)),'+/=','-_');
162		}
163
164		}
165

caffeina-core / core

Push — master ( 4a7f99...ceaa03 )

Hash::murmur() F

Complexity

Size

Duplication

Importance

How to fix Complexity

Long Method

Duplication Side-by-Side

Filter issues like