1 <?php
2
3 /**
4 * The MIT License
5 *
6 * Copyright 2014 George Marques <george at georgemarques.com.br>.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 * THE SOFTWARE.
25 */
26
27 namespace Flikore\Validator\Validators;
28
29 /**
30 * Validates if a string is a valid IPv4 address.
31 *
32 * @author George Marques <george at georgemarques.com.br>
33 * @version 0.5.2
34 * @since 0.3
35 * @license http://opensource.org/licenses/MIT MIT
36 * @copyright (c) 2014, George Marques
37 * @package Flikore\Validator
38 */
39 class IPv4Validator extends \Flikore\Validator\Validator
40 {
41
42 /**
43 * The error message for this validator.
44 * @var string The error message for this validator.
45 */
46 protected $message = 'The %key% must be a valid IPv4 address.';
47
48 /**
49 * Executes the real validation so it can be reused.
50 * @param mixed $value The value to validate.
51 * @return boolean Whether the value pass the validation.
52 */
53 protected function doValidate($value)
54 {
55 // ignore empty values
56 if ($this->isEmpty($value))
57 {
58 return true;
59 }
60 return $value === filter_var($value, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);
61 }
62
63 }
64