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04:04
created

Format::validate()   B

Complexity

Conditions 7
Paths 7

Size

Total Lines 57
Code Lines 48

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 47
CRAP Score 7.0004
Metric Value
cc 7
eloc 48
nc 7
nop 3
dl 0
loc 57
ccs 47
cts 48
cp 0.9792
crap 7.0004
rs 7.6759

How to fix   Long Method   

Long Method

Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.

For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.

Commonly applied refactorings include:

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<?php
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namespace League\JsonGuard\Constraints;
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use League\JsonGuard;
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use League\JsonGuard\ErrorCode;
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use League\JsonGuard\ValidationError;
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class Format implements PropertyConstraint
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{
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    // regex from http://www.pelagodesign.com/blog/2009/05/20/iso-8601-date-validation-that-doesnt-suck/
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    // @codingStandardsIgnoreStart
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    const DATE_TIME_PATTERN = '/^([\+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])(\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-2])(-?[1-7])?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24\:?00)([\.,]\d+(?!:))?)?(\17[0-5]\d([\.,]\d+)?)?([zZ]|([\+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$/';
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    // @codingStandardsIgnoreEnd
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    const HOST_NAME_PATTERN = '/^[_a-z]+\.([_a-z]+\.?)+$/i';
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    /**
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     * {@inheritdoc}
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     */
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    public static function validate($value, $parameter, $pointer = null)
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    {
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        switch ($parameter) {
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            case 'date-time':
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                return self::validateRegex(
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                    $parameter,
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                    $value,
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                    self::DATE_TIME_PATTERN,
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                    ErrorCode::INVALID_DATE_TIME,
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                    $pointer
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                );
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            case 'uri':
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                return self::validateFilter(
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                    $parameter,
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                    $value,
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                    FILTER_VALIDATE_URL,
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                    null,
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                    ErrorCode::INVALID_URI,
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                    $pointer
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                );
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            case 'email':
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                return self::validateFilter(
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                    $parameter,
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                    $value,
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                    FILTER_VALIDATE_EMAIL,
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                    null,
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                    ErrorCode::INVALID_EMAIL,
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                    $pointer
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                );
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            case 'ipv4':
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                return self::validateFilter(
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                    $parameter,
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                    $value,
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                    FILTER_VALIDATE_IP,
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                    FILTER_FLAG_IPV4,
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                    ErrorCode::INVALID_IPV4,
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                    $pointer
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                );
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            case 'ipv6':
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                return self::validateFilter(
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                    $parameter,
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                    $value,
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                    FILTER_VALIDATE_IP,
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                    FILTER_FLAG_IPV6,
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                    ErrorCode::INVALID_IPV6,
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                    $pointer
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                );
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            case 'hostname':
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                return self::validateRegex(
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                    $parameter,
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                    $value,
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                    self::HOST_NAME_PATTERN,
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                    ErrorCode::INVALID_HOST_NAME,
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                    $pointer
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                );
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        }
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    }
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    /**
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     * @param string $format
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     * @param mixed $value
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     * @param string $pattern
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     * @param int $errorCode
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     * @param string $pointer
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     *
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     * @return \League\JsonGuard\ValidationError|null
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     */
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    private static function validateRegex($format, $value, $pattern, $errorCode, $pointer)
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    {
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        if (preg_match($pattern, $value) === 1) {
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            return null;
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        }
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        return new ValidationError(self::invalidFormatMessage($format, $value), $errorCode, $value, $pointer);
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    }
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    /**
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     * @param string $format
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     * @param mixed  $value
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     * @param int    $filter
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     * @param mixed  $options
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     * @param int    $errorCode
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     * @param string $pointer
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     *
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     * @return \League\JsonGuard\ValidationError|null
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     */
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    private static function validateFilter($format, $value, $filter, $options, $errorCode, $pointer)
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    {
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        if (filter_var($value, $filter, $options) !== false) {
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            return null;
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        }
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        return new ValidationError(self::invalidFormatMessage($format, $value), $errorCode, $value, $pointer);
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    }
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    /**
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     * @param string $format
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     * @param mixed  $value
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     *
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     * @return string
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     */
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    private static function invalidFormatMessage($format, $value)
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    {
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        return sprintf('"%s" is not a valid %s.', JsonGuard\asString($value), $format);
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    }
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}
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