JsonHandler::isValidJson() - Code Metrics - Inspection of "Refactoring rules concept" - yiisoft/validator - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#222)

by Dmitriy

created 2022-04-22 11:23 UTC

JsonHandler::isValidJson() A

↳ Parent: JsonHandler

Complexity

Conditions	2
Paths	2

Size

Total Lines	20
Code Lines	15

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	2

Importance

Changes

Metric	Value
eloc	15
dl	0
loc	20
ccs	3
cts	3
cp	1
rs	9.7666
c	0
b	0
f	0
cc	2
nc	2
nop	1
crap	2

<?php

declare(strict_types=1);

namespace Yiisoft\Validator\Rule;

use Yiisoft\Validator\Result;
use Yiisoft\Validator\ValidationContext;
use Yiisoft\Validator\ValidatorInterface;
use function is_string;
use Yiisoft\Validator\Exception\UnexpectedRuleException;

/**
 * Validates that the value is a valid json.
 */
final class JsonHandler implements RuleHandlerInterface
{
    public function validate(mixed $value, object $rule, ?ValidationContext $context = null): Result
    {
        if (!$rule instanceof Json) {
            throw new UnexpectedRuleException(Json::class, $rule);
        }

        $result = new Result();

        if (!$this->isValidJson($value)) {
            $result->addError($rule->message);
        }

        return $result;
    }

    private function isValidJson($value): bool
    {
        // Regular expression is built based on JSON grammar specified at
        // https://tools.ietf.org/html/rfc8259
        $regex = <<<'REGEX'
        /
        (?(DEFINE)
            (?<json>(?>\s*(?&object)\s*|\s*(?&array)\s*))
            (?<object>(?>\{\s*(?>(?&member)(?>\s*,\s*(?&member))*)?\s*\}))
            (?<member>(?>(?&string)\s*:\s*(?&value)))
            (?<array>(?>\[\s*(?>(?&value)(?>\s*,\s*(?&value))*)?\s*\]))
            (?<value>(?>)false|null|true|(?&object)|(?&array)|(?&number)|(?&string))
            (?<number>(?>-?(?>0|[1-9]\d*)(?>\.\d+)?(?>[eE][-+]?\d+)?))
            (?<string>(?>"(?>\\(?>["\\\/bfnrt]|u[a-fA-F0-9]{4})|[^"\\\0-\x1F\x7F]+)*"))
        )
        \A(?&json)\z
        /x
        REGEX;

        return is_string($value) && preg_match($regex, $value) === 1;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Yiisoft\Validator\Rule;
6
7		use Yiisoft\Validator\Result;
8		use Yiisoft\Validator\ValidationContext;
9		use Yiisoft\Validator\ValidatorInterface;
10		use function is_string;
11		use Yiisoft\Validator\Exception\UnexpectedRuleException;
12
13		/**
14		* Validates that the value is a valid json.
15		*/
16		final class JsonHandler implements RuleHandlerInterface
17		{
18	10	public function validate(mixed $value, object $rule, ?ValidationContext $context = null): Result
19		{
20	10	if (!$rule instanceof Json) {
21	1	throw new UnexpectedRuleException(Json::class, $rule);
22		}
23
24	9	$result = new Result();
25
26	9	if (!$this->isValidJson($value)) {
27	6	$result->addError($rule->message);
28		}
29
30	9	return $result;
31		}
32
33	9	private function isValidJson($value): bool
34		{
35		// Regular expression is built based on JSON grammar specified at
36		// https://tools.ietf.org/html/rfc8259
37	9	$regex = <<<'REGEX'
38		/
39		(?(DEFINE)
40		(?<json>(?>\s(?&object)\s\|\s(?&array)\s))
41		(?<object>(?>\{\s(?>(?&member)(?>\s,\s(?&member)))?\s*\}))
42		(?<member>(?>(?&string)\s:\s(?&value)))
43		(?<array>(?>\[\s(?>(?&value)(?>\s,\s(?&value)))?\s*\]))
44		(?<value>(?>)false\|null\|true\|(?&object)\|(?&array)\|(?&number)\|(?&string))
45		(?<number>(?>-?(?>0\|[1-9]\d*)(?>\.\d+)?(?>[eE][-+]?\d+)?))
46		(?<string>(?>"(?>\\(?>["\\\/bfnrt]\|u[a-fA-F0-9]{4})\|[^"\\\0-\x1F\x7F]+)*"))
47		)
48		\A(?&json)\z
49		/x
50		REGEX;
51
52	9	return is_string($value) && preg_match($regex, $value) === 1;
53		}
54		}
55

yiisoft / validator

Pull Request — master (#222)

JsonHandler::isValidJson() A

Complexity

Size

Duplication

Code Coverage

Importance

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