Kaptcha::validate_kaptcha() - Code Metrics - RocketPropelledTortoise/UI - Measure and Improve Code Quality continuously with Scrutinizer

Kaptcha::validate_kaptcha() A
last analyzed 2020-04-19 15:48 UTC

↳ Parent: Kaptcha

Complexity

Conditions	4
Paths	3

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	20

Importance

Changes

Metric	Value
cc	4
nc	3
nop	2
dl	0
loc	11
ccs	0
cts	10
cp	0
crap	20
rs	9.9
c	0
b	0
f	0

<?php
namespace Rocket\UI\Forms\Fields;

/**
 * Captcha form field
 *
 * @author Stéphane Goetz
 */

/**
 * A Math Captcha Library that displays a number captcha similar to the drupal captcha.
 *
 * INSTRUCTIONS
 *
 * Place this class into you application/library directory and name it kaptcha.php
 *
 * create MY_Form_validation.php, add this code and save it in the application/libraries folder.
 *
 *   public function kaptcha($value) {
 *       $answer = $this->CI->input->post('kaptcha_answer');
 *       if ($this->CI->kaptcha->validate_kaptcha($value, $answer)) {
 *           return true;
 *       }
 *       return false;
 *   }
 *
 *
 * Add this to your controller form validation rules
 * $this->form_validation->set_rules('kaptcha', 'Math Question', 'required|is_numeric|kaptcha');
 *
 * You can either add this to your form using a single line <?php $this->kaptcha->display_kaptcha(); ?>
 * or call it as an array <?php $kaptcha = $this->kaptcha->create_kaptcha() ;?> which  will give you three items
 * First Number, Second Number and an encrypted answer which needs to be put in a hidden  input value with the
 * name and id set to kaptcha_answer.
 *
 * The CSS is you bit!
 */
class Kaptcha extends Field
{
    protected function getDefaults()
    {
        return parent::getDefaults() + [
            'kaptcha' => [
                'tip' => t(
                    'Resolvez ce calcul et entrez le resultat. Par exemple 1+3 = 4.' .
                    'Il s\'agit de définir que vous êtes bien humain et pour éviter les spams'
                ),
                'title' => 'Calcul : !first + !second =',
                'hidden_field' => 'kaptcha_answer',
            ],
        ];
    }

    protected $kaptcha;

    public function __construct($name, $data = [])
    {
        parent::__construct($name, $data);

        $this->kaptcha = [
            'first' => rand(1, 10),
            'second' => rand(1, 10),
        ];

        $this->kaptcha['answer'] = \Crypt::encrypt($this->kaptcha['first'] + $this->kaptcha['second']);

        $this->params['tip'] = $this->params['kaptcha']['tip'];
        $this->params['title'] = t(
            $this->params['kaptcha']['title'],
            ['!first' => $this->kaptcha['first'], '!second' => $this->kaptcha['second']]
        );
    }

    /**
     * Render the inner field
     */
    protected function renderInner()
    {
        parent::renderInner();

        $this->result .= "<input type=hidden name='{$this->params['kaptcha']['hidden_field']}' value='{$this->kaptcha['answer']}' />";
    }

    /**
     * Function that validates the user answer against the encrypted answer
     * @param  string $kaptcha
     * @param  string $answer
     * @return bool
     */
    public static function validate_kaptcha($kaptcha = null, $answer = null)
    {
        if ($kaptcha && $answer) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
            $value = \Crypt::decrypt($answer);
            if ($kaptcha == $value) {
                return true;
            }
        }

        return false;
    }
}


1			<?php
2			namespace Rocket\UI\Forms\Fields;
3
4			/**
5			* Captcha form field
6			*
7			* @author Stéphane Goetz
8			*/
9
10			/**
11			* A Math Captcha Library that displays a number captcha similar to the drupal captcha.
12			*
13			* INSTRUCTIONS
14			*
15			* Place this class into you application/library directory and name it kaptcha.php
16			*
17			* create MY_Form_validation.php, add this code and save it in the application/libraries folder.
18			*
19			* public function kaptcha($value) {
20			* $answer = $this->CI->input->post('kaptcha_answer');
21			* if ($this->CI->kaptcha->validate_kaptcha($value, $answer)) {
22			* return true;
23			* }
24			* return false;
25			* }
26			*
27			*
28			* Add this to your controller form validation rules
29			* $this->form_validation->set_rules('kaptcha', 'Math Question', 'required\|is_numeric\|kaptcha');
30			*
31			* You can either add this to your form using a single line <?php $this->kaptcha->display_kaptcha(); ?>
32			* or call it as an array <?php $kaptcha = $this->kaptcha->create_kaptcha() ;?> which will give you three items
33			* First Number, Second Number and an encrypted answer which needs to be put in a hidden input value with the
34			* name and id set to kaptcha_answer.
35			*
36			* The CSS is you bit!
37			*/
38			class Kaptcha extends Field
39			{
40			protected function getDefaults()
41			{
42			return parent::getDefaults() + [
43			'kaptcha' => [
44			'tip' => t(
45			'Resolvez ce calcul et entrez le resultat. Par exemple 1+3 = 4.' .
46			'Il s\'agit de définir que vous êtes bien humain et pour éviter les spams'
47			),
48			'title' => 'Calcul : !first + !second =',
49			'hidden_field' => 'kaptcha_answer',
50			],
51			];
52			}
53
54			protected $kaptcha;
55
56			public function __construct($name, $data = [])
57			{
58			parent::__construct($name, $data);
59
60			$this->kaptcha = [
61			'first' => rand(1, 10),
62			'second' => rand(1, 10),
63			];
64
65			$this->kaptcha['answer'] = \Crypt::encrypt($this->kaptcha['first'] + $this->kaptcha['second']);
66
67			$this->params['tip'] = $this->params['kaptcha']['tip'];
68			$this->params['title'] = t(
69			$this->params['kaptcha']['title'],
70			['!first' => $this->kaptcha['first'], '!second' => $this->kaptcha['second']]
71			);
72			}
73
74			/**
75			* Render the inner field
76			*/
77			protected function renderInner()
78			{
79			parent::renderInner();
80
81			$this->result .= "<input type=hidden name='{$this->params['kaptcha']['hidden_field']}' value='{$this->kaptcha['answer']}' />";
82			}
83
84			/**
85			* Function that validates the user answer against the encrypted answer
86			* @param string $kaptcha
87			* @param string $answer
88			* @return bool
89			*/
90			public static function validate_kaptcha($kaptcha = null, $answer = null)
91			{
92			if ($kaptcha && $answer) {
			0 ignored issues – show Bug Best Practice introduced 2016-01-02 18:00 UTC by Report Bug Copy Issue Report The expression `$kaptcha` of type `string\|null` is loosely compared to `true`; this is ambiguous if the string can be empty. You might want to explicitly use `!== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history... Bug Best Practice introduced 2016-01-02 18:00 UTC by Report Bug Copy Issue Report The expression `$answer` of type `string\|null` is loosely compared to `true`; this is ambiguous if the string can be empty. You might want to explicitly use `!== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history...
93			$value = \Crypt::decrypt($answer);
94			if ($kaptcha == $value) {
95			return true;
96			}
97			}
98
99			return false;
100			}
101			}
102

RocketPropelledTortoise / UI

Kaptcha::validate_kaptcha() A last analyzed 2020-04-19 15:48 UTC

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Kaptcha::validate_kaptcha() A
last analyzed 2020-04-19 15:48 UTC