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Completed
Push — master ( 15ddcd...bd2bc3 )
by Rick
10s
created

CreditCard::validateChecksum()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 6
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 3
CRAP Score 1

Importance

Changes 3
Bugs 0 Features 1
Metric Value
c 3
b 0
f 1
dl 0
loc 6
ccs 3
cts 3
cp 1
rs 9.4285
cc 1
eloc 3
nc 1
nop 1
crap 1
1
<?php
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/**
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 * Particle.
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 *
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 * @link      http://github.com/particle-php for the canonical source repository
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 * @copyright Copyright (c) 2005-2015 Particle (http://particle-php.com)
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 * @license   https://github.com/particle-php/validator/blob/master/LICENSE New BSD License
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 */
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namespace Particle\Validator\Rule;
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use byrokrat\checkdigit\Luhn;
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use Particle\Validator\Rule;
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/**
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 * This rule is for validating if a value is a valid credit card number.
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 *
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 * @package Particle\Validator\Rule
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 */
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class CreditCard extends Rule
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{
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    /**
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     * A constant that will be used when the value is not a valid credit card number.
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     */
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    const INVALID_FORMAT = 'CreditCard::INVALID_FORMAT';
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    const INVALID_CHECKSUM = 'CreditCard::INVALID_CHECKSUM';
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    /**
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     * Regular expressions to validate the different credit card brands
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     *
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     * @var array
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     */
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    protected $validationRegExps = [
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        '/^4[0-9]{12}(?:[0-9]{3})?$/', // Visa
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        '/^5[1-5][0-9]{14}$/', // Mastercard
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        '/^3[47][0-9]{13}$/', // American Express
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        '/^3(?:0[0-5]|[68][0-9])[0-9]{11}$/', // Diners Club
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        '/^6(?:011|5[0-9]{2})[0-9]{12}$/', // Discover
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        '/^(?:2131|1800|35\d{3})\d{11}$/', // JCB
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    ];
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    /**
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     * The message templates which can be returned by this validator.
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     *
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     * @var array
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     */
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    protected $messageTemplates = [
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        self::INVALID_FORMAT => '{{ name }} must have a valid credit card number format',
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        self::INVALID_CHECKSUM => '{{ name }} must be a valid credit card number',
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    ];
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    /**
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     * Validates if the value is a valid credit card number.
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     *
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     * @param mixed $value
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     * @return bool
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     */
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    public function validate($value)
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    {
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        if (!$this->validateFormat($value)) {
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            return $this->error(self::INVALID_FORMAT);
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        } elseif (!$this->validateChecksum($value)) {
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            return $this->error(self::INVALID_CHECKSUM);
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        }
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        return true;
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    }
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    /**
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     * @param $value
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     *
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     * @return bool
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     */
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    private function validateChecksum($value)
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    {
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        $luhn = new Luhn();
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        return $luhn->isValid($value);
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    }
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    /**
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     * @param $value
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     *
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     * @return bool
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     */
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    private function validateFormat($value)
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    {
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        foreach ($this->validationRegExps as $validationRegExp) {
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            if (preg_match($validationRegExp, $value) === 1) {
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                return true;
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            }
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        }
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        return false;
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    }
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}
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