sessions / includes / system / class-hash.php

class-hash.php in Sessions 2.3.1, at includes/system/class-hash.php

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1	<?php
2	/**
3	* Hash handling
4	*
5	* Handles all hash operations and detection.
6	*
7	* @package System
8	* @author Pierre Lannoy <https://pierre.lannoy.fr/>.
9	* @since 1.0.0
10	*/
11
12	namespace POSessions\System;
13
14	/**
15	* Define the hash functionality.
16	*
17	* Handles all hash operations and detection.
18	*
19	* @package System
20	* @author Pierre Lannoy <https://pierre.lannoy.fr/>.
21	* @since 1.0.0
22	*/
23	class Hash {
24
25	/**
26	* Algo availability.
27	*
28	* @since 1.0.0
29	* @var array $x_available Is MD5 available?
30	*/
31	private static $x_available = [];
32
33	/**
34	* SHA1 availability.
35	*
36	* @since 1.0.0
37	* @var boolean $sha1_available Is SHA1 available?
38	*/
39	private static $sha1_available = false;
40
41	/**
42	* SHA-256 availability.
43	*
44	* @since 1.0.0
45	* @var boolean $sha256_available Is SHA-256 available?
46	*/
47	private static $sha256_available = false;
48
49	/**
50	* Initializes the class and set its properties.
51	*
52	* @since 1.0.0
53	*/
54	public function __construct() {
55	}
56
57	/**
58	* Static initialization.
59	*
60	* @since 1.0.0
61	*/
62	public static function init() {
63	self::$x_available = hash_algos();
64	self::$sha1_available = in_array( 'sha1', self::$x_available );
65	self::$sha256_available = in_array( 'sha256', self::$x_available );
66	}
67
68	/**
69	* Simple hashing function.
70	*
71	* @param string $secret String to hash.
72	* @param boolean $markup Optional. With {}.
73	* @return string The hashed string.
74	* @since 1.0.0
75	*/
76	public static function simple_hash( $secret, $markup = true ) {
77	if ( self::$sha256_available ) {
78	$result = hash( 'sha256', (string) $secret );
79	} elseif ( self::$sha1_available ) {
80	$result = hash( 'sha1', (string) $secret );
81	} else {
82	$result = hash( 'md5', (string) $secret );
83	}
84	if ( $markup ) {
85	$result = '{' . $result . '}';
86	}
87	return $result;
88	}
89
90	}
91
92	Hash::init();
93