RdataTrait::encodeName() - Code Metrics - Inspection of "Merge pull request #67 from Badcow/Message" - Badcow/DNS - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( c1e68f...f0bd78 )

by Sam

created 2020-03-04 20:01 UTC

RdataTrait::encodeName() A

↳ Parent: RdataTrait

Complexity

Conditions	3
Paths	3

Size

Total Lines	14
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	3

Importance

Changes

Metric	Value
cc	3
eloc	7
c	0
b	0
f	0
nc	3
nop	1
dl	0
loc	14
ccs	8
cts	8
cp	1
crap	3
rs	10

<?php

declare(strict_types=1);

/*
 * This file is part of Badcow DNS Library.
 *
 * (c) Samuel Williams <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Badcow\DNS\Rdata;

trait RdataTrait
{
    /**
     * {@inheritdoc}
     */
    public function getType(): string
    {
        /* @const TYPE */
        return static::TYPE;
    }

    /**
     * {@inheritdoc}
     */
    public function getTypeCode(): int
    {
        /* @const TYPE_CODE */
        return static::TYPE_CODE;
    }

    /**
     * Encode a domain name as a sequence of labels.
     *
     * @param string $name
     *
     * @return string
     */
    public static function encodeName(string $name): string
    {
        if ('.' === $name) {
            return chr(0);
        }

        $name = rtrim($name, '.').'.';
        $res = '';

        foreach (explode('.', $name) as $label) {
            $res .= chr(strlen($label)).$label;
        }

        return $res;
    }

    /**
     * @param string $string
     * @param int    $offset
     *
     * @return string
     */
    public static function decodeName(string $string, int &$offset = 0): string
    {
        $len = ord($string[$offset]);
        ++$offset;

        $isCompressed = (bool) (0b11000000 & $len);
        $_offset = 0;

        if ($isCompressed) {
            $_offset = $offset + 1;
            $offset = (0b00111111 & $len) * 256 + ord($string[$offset]);
            $len = ord($string[$offset]);
            ++$offset;
        }

        if (0 === $len) {
            return '.';
        }

        $name = '';
        while (0 !== $len) {
            $name .= substr($string, $offset, $len).'.';
            $offset += $len;
            $len = ord($string[$offset]);
            if ($len & 0b11000000) {
                $name .= self::decodeName($string, $offset);
                break;
            }

            ++$offset;
        }

        if ($isCompressed) {
            $offset = $_offset;
        }

        return $name;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		/*
6		* This file is part of Badcow DNS Library.
7		*
8		* (c) Samuel Williams <[email protected]>
9		*
10		* For the full copyright and license information, please view the LICENSE
11		* file that was distributed with this source code.
12		*/
13
14		namespace Badcow\DNS\Rdata;
15
16		trait RdataTrait
17		{
18		/**
19		* {@inheritdoc}
20		*/
21	43	public function getType(): string
22		{
23		/* @const TYPE */
24	43	return static::TYPE;
25		}
26
27		/**
28		* {@inheritdoc}
29		*/
30	17	public function getTypeCode(): int
31		{
32		/* @const TYPE_CODE */
33	17	return static::TYPE_CODE;
34		}
35
36		/**
37		* Encode a domain name as a sequence of labels.
38		*
39		* @param string $name
40		*
41		* @return string
42		*/
43	38	public static function encodeName(string $name): string
44		{
45	38	if ('.' === $name) {
46	3	return chr(0);
47		}
48
49	35	$name = rtrim($name, '.').'.';
50	35	$res = '';
51
52	35	foreach (explode('.', $name) as $label) {
53	35	$res .= chr(strlen($label)).$label;
54		}
55
56	35	return $res;
57		}
58
59		/**
60		* @param string $string
61		* @param int $offset
62		*
63		* @return string
64		*/
65	30	public static function decodeName(string $string, int &$offset = 0): string
66		{
67	30	$len = ord($string[$offset]);
68	30	++$offset;
69
70	30	$isCompressed = (bool) (0b11000000 & $len);
71	30	$_offset = 0;
72
73	30	if ($isCompressed) {
74	7	$_offset = $offset + 1;
75	7	$offset = (0b00111111 & $len) * 256 + ord($string[$offset]);
76	7	$len = ord($string[$offset]);
77	7	++$offset;
78		}
79
80	30	if (0 === $len) {
81	3	return '.';
82		}
83
84	27	$name = '';
85	27	while (0 !== $len) {
86	27	$name .= substr($string, $offset, $len).'.';
87	27	$offset += $len;
88	27	$len = ord($string[$offset]);
89	27	if ($len & 0b11000000) {
90	7	$name .= self::decodeName($string, $offset);
91	7	break;
92		}
93
94	27	++$offset;
95		}
96
97	27	if ($isCompressed) {
98	7	$offset = $_offset;
99		}
100
101	27	return $name;
102		}
103		}
104

Badcow / DNS

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RdataTrait::encodeName() A

Complexity

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