class-validator.php — WP 2FA – Two-factor authentication for WordPress 4.0.0

wp-2fa / includes / classes / Utils / class-validator.php

wp-2fa / includes / classes / Utils Last commit date

class-abstract-migration.php 1 day ago class-date-time-utils.php 1 day ago class-debugging.php 1 day ago class-generate-modal.php 1 day ago class-migration.php 1 day ago class-request-utils.php 1 day ago class-settings-utils.php 1 day ago class-upgrade-guard.php 1 day ago class-user-utils.php 1 day ago class-validator.php 1 day ago class-white-label.php 1 day ago index.php 1 day ago

class-validator.php

198 lines

1	<?php
2	/**ValidatorAbstract migration class.
3	*
4	* @package wp2fa
5	* @subpackage utils
6	* @copyright 2026 Melapress
7	* @license https://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0
8	* @link https://wordpress.org/plugins/wp-2fa/
9	*
10	* @since 2.8.0
11	*/
12
13	declare(strict_types=1);
14
15	namespace WP2FA\Utils;
16
17	defined( 'ABSPATH' ) \|\| exit; // Exit if accessed directly.
18
19	/**
20	* Validator class
21	*/
22	if ( ! class_exists( '\WP2FA\Utils\Validator' ) ) {
23
24	/**
25	* Provides validation functionalities for the plugin
26	*
27	* @since 2.8.0
28	*/
29	class Validator {
30
31	/**
32	* All the errors collected by the validator
33	*
34	* @var array
35	*
36	* @since 2.1.0
37	*/
38	private static $errors = array();
39
40	/**
41	* Validates variables against given rules
42	*
43	* @param mixed $variable - Variable to validate.
44	* @param string $type - Type to be used for validation.
45	* @param bool $default - If set to true, will return default value based on given validation type.
46	* @param mixed $default_value - If the default value to return.
47	*
48	* @return mixed
49	*
50	* @since 2.8.0
51	*/
52	public static function validate( $variable, string $type, bool $default = false, $default_value = null ) {
53	$valid = true;
54	$default_val = null;
55
56	if ( empty( $type ) ) {
57	$valid = false;
58	} else {
59	$type = strval( $type );
60	switch ( $type ) {
61	case 'slug':
62	case 'string':
63	$default_val = '';
64	if ( ! isset( $variable ) ) {
65	$valid = false;
66	self::$errors[] = 'Variable is not set';
67	} else {
68	$variable = \sanitize_text_field( \wp_unslash( $variable ) );
69	}
70	break;
71	case 'email':
72	$variable = \sanitize_email( $variable );
73	$valid = self::validate_email( $variable );
74	$default_val = '';
75	break;
76	case 'int':
77	case 'integer':
78	$valid = self::validate_integer( $variable );
79	$default_val = 0;
80	break;
81	case 'bool':
82	case 'boolean':
83	$valid = self::validate_boolean( $variable );
84	$default_val = false;
85	break;
86	default:
87	$valid = false;
88	self::$errors[] = 'No rules are set - nothing to test against';
89	break;
90	}
91	}
92
93	if ( ! $valid && $default ) {
94	return $default_value ?? $default_val;
95	} elseif ( ! $valid ) {
96	return false;
97	}
98
99	return $variable;
100	}
101
102	/**
103	* Validates email
104	*
105	* @param string $variable - Value which needs to be validated.
106	*
107	* @return bool
108	*
109	* @since 2.8.0
110	*/
111	public static function validate_email( string $variable ): bool {
112	$valid = true;
113
114	if ( false === ( $valid = self::filter_validate( $variable, 'email' ) ) ) { // phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.Found, Squiz.PHP.DisallowMultipleAssignments.FoundInControlStructure
115	self::$errors[] = 'Variable is not valid e-mail' . "\n";
116	$valid = false;
117	}
118
119	return $valid;
120	}
121
122	/**
123	* Validates integer
124	*
125	* @param string $variable - Value which needs to be validated.
126	*
127	* @return bool
128	*
129	* @since 2.8.0
130	*/
131	public static function validate_integer( string $variable ): bool {
132	$valid = true;
133
134	if ( false === ( $valid = self::filter_validate( $variable, 'int' ) ) ) { // phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.Found, Squiz.PHP.DisallowMultipleAssignments.FoundInControlStructure
135	self::$errors[] = 'Variable is not valid integer' . "\n";
136	$valid = false;
137	}
138
139	return $valid;
140	}
141
142	/**
143	* Validates boolean
144	*
145	* @param string $variable - Value which needs to be validated.
146	*
147	* @return bool
148	*
149	* @since 2.8.0
150	*/
151	public static function validate_boolean( string\|bool $variable ): bool {
152	$valid = true;
153
154	$variable = (string) $variable;
155
156	if ( false === ( $valid = self::filter_validate( $variable, 'bool' ) ) ) { // phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.Found, Squiz.PHP.DisallowMultipleAssignments.FoundInControlStructure
157	self::$errors[] = 'Variable is not valid boolean' . "\n";
158	$valid = false;
159	}
160
161	return $valid;
162	}
163
164	/**
165	* Uses standard PHP filter validation
166	*
167	* @param mixed $variable - The value which needs to be validated.
168	* @param string $type - The type of the variable - using that info method knows which validation to execute.
169	*
170	* @return bool
171	*
172	* @since 2.8.0
173	*/
174	private static function filter_validate( $variable, string $type ): bool {
175	$result = false;
176
177	switch ( $type ) {
178	case 'email':
179	$result = (bool) filter_var( $variable, \FILTER_VALIDATE_EMAIL );
180	break;
181	case 'boolean':
182	case 'bool':
183	$result = (bool) filter_var( $variable, \FILTER_VALIDATE_BOOLEAN );
184	break;
185	case 'integer':
186	case 'int':
187	$result = (bool) filter_var( $variable, \FILTER_VALIDATE_INT );
188	break;
189	default:
190	// code...
191	break;
192	}
193
194	return $result;
195	}
196	}
197	}
198