IPv4::getAddressAtOffset() - Code Metrics - Inspection of "Add \IPLib\Address\AddressInterface::getNextNthAdd..." - mlocati/ip-lib - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#60)

by Michele

created 2021-05-26 08:00 UTC

IPv4::getAddressAtOffset() A

↳ Parent: IPv4

Complexity

Conditions	5
Paths	7

Size

Total Lines

Duplication

Lines	25
Ratio	100 %

Code Coverage

Tests	12
CRAP Score	5

Importance

Changes

Metric	Value
dl	25
loc	25
ccs	12
cts	12
cp	1
rs	9.2088
c	0
b	0
f	0
cc	5
nc	7
nop	1
crap	5

<?php

namespace IPLib\Address;

use IPLib\Range\RangeInterface;
use IPLib\Range\Subnet;
use IPLib\Range\Type as RangeType;

/**
 * An IPv4 address.
 */
class IPv4 implements AddressInterface
{
    /**
     * The string representation of the address.
     *
     * @var string
     *
     * @example '127.0.0.1'
     */
    protected $address;

    /**
     * The byte list of the IP address.
     *
     * @var int[]|null
     */
    protected $bytes;

    /**
     * The type of the range of this IP address.
     *
     * @var int|null
     */
    protected $rangeType;

    /**
     * A string representation of this address than can be used when comparing addresses and ranges.
     *
     * @var string
     */
    protected $comparableString;

    /**
     * An array containing RFC designated address ranges.
     *
     * @var array|null
     */
    private static $reservedRanges = null;

    /**
     * Initializes the instance.
     *
     * @param string $address
     */
    protected function __construct($address)
    {
        $this->address = $address;
        $this->bytes = null;
        $this->rangeType = null;
        $this->comparableString = null;
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::__toString()
     */
    public function __toString()
    {
        return $this->address;
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::getNumberOfBits()
     */
    public static function getNumberOfBits()
    {
        return 32;
    }

    /**
     * Parse a string and returns an IPv4 instance if the string is valid, or null otherwise.
     *
     * @param string|mixed $address the address to parse
     * @param bool $mayIncludePort set to false to avoid parsing addresses with ports
     * @param bool $supportNonDecimalIPv4 set to true to support parsing non decimal (that is, octal and hexadecimal) IPv4 addresses
     *
     * @return static|null
     */
    public static function fromString($address, $mayIncludePort = true, $supportNonDecimalIPv4 = false)
    {
        if (!is_string($address) || !strpos($address, '.')) {
            return null;
        }
        $rxChunk = '0?[0-9]{1,3}';
        if ($supportNonDecimalIPv4) {
            $rxChunk = "(?:0[Xx]0*[0-9A-Fa-f]{1,2})|(?:{$rxChunk})";
        }
        $rx = "0*?({$rxChunk})\.0*?({$rxChunk})\.0*?({$rxChunk})\.0*?({$rxChunk})";
        if ($mayIncludePort) {
            $rx .= '(?::\d+)?';
        }
        $matches = null;
        if (!preg_match('/^' . $rx . '$/', $address, $matches)) {
            return null;
        }
        $nums = array();
        for ($i = 1; $i <= 4; $i++) {
            $s = $matches[$i];
            if ($supportNonDecimalIPv4) {
                if (stripos($s, '0x') === 0) {
                    $n = hexdec(substr($s, 2));
                } elseif ($s[0] === '0') {
                    if (!preg_match('/^[0-7]+$/', $s)) {
                        return null;
                    }
                    $n = octdec(substr($s, 1));
                } else {
                    $n = (int) $s;
                }
            } else {
                $n = (int) $s;
            }
            if ($n < 0 || $n > 255) {
                return null;
            }
            $nums[] = (string) $n;
        }

        return new static(implode('.', $nums));
    }

    /**
     * Parse an array of bytes and returns an IPv4 instance if the array is valid, or null otherwise.
     *
     * @param int[]|array $bytes
     *
     * @return static|null
     */
    public static function fromBytes(array $bytes)
    {
        $result = null;
        if (count($bytes) === 4) {
            $chunks = array_map(
                function ($byte) {
                    return (is_int($byte) && $byte >= 0 && $byte <= 255) ? (string) $byte : false;
                },
                $bytes
            );
            if (in_array(false, $chunks, true) === false) {
                $result = new static(implode('.', $chunks));
            }
        }

        return $result;
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::toString()
     */
    public function toString($long = false)
    {
        if ($long) {
            return $this->getComparableString();
        }

        return $this->address;
    }

    /**
     * Get the octal representation of this IP address.
     *
     * @param bool $long
     *
     * @return string
     *
     * @example if $long == false: if the decimal representation is '0.7.8.255': '0.7.010.0377'
     * @example if $long == true: if the decimal representation is '0.7.8.255': '0000.0007.0010.0377'
     */
    public function toOctal($long = false)

    {
        $chunks = array();
        foreach ($this->getBytes() as $byte) {
            if ($long) {
                $chunks[] = sprintf('%04o', $byte);
            } else {
                $chunks[] = '0' . decoct($byte);
            }
        }

        return implode('.', $chunks);
    }

    /**
     * Get the hexadecimal representation of this IP address.
     *
     * @param bool $long
     *
     * @return string
     *
     * @example if $long == false: if the decimal representation is '0.9.10.255': '0.9.0xa.0xff'
     * @example if $long == true: if the decimal representation is '0.9.10.255': '0x00.0x09.0x0a.0xff'
     */
    public function toHexadecimal($long = false)

    {
        $chunks = array();
        foreach ($this->getBytes() as $byte) {
            if ($long) {
                $chunks[] = sprintf('0x%02x', $byte);
            } else {
                $chunks[] = '0x' . dechex($byte);
            }
        }

        return implode('.', $chunks);
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::getBytes()
     */
    public function getBytes()
    {
        if ($this->bytes === null) {
            $this->bytes = array_map(
                function ($chunk) {
                    return (int) $chunk;
                },
                explode('.', $this->address)
            );
        }

        return $this->bytes;
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::getBits()
     */
    public function getBits()

    {
        $parts = array();
        foreach ($this->getBytes() as $byte) {
            $parts[] = sprintf('%08b', $byte);
        }

        return implode('', $parts);
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::getAddressType()
     */
    public function getAddressType()
    {
        return Type::T_IPv4;
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::getDefaultReservedRangeType()
     */
    public static function getDefaultReservedRangeType()
    {
        return RangeType::T_PUBLIC;
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::getReservedRanges()
     */
    public static function getReservedRanges()
    {
        if (self::$reservedRanges === null) {
            $reservedRanges = array();
            foreach (array(
                // RFC 5735
                '0.0.0.0/8' => array(RangeType::T_THISNETWORK, array('0.0.0.0/32' => RangeType::T_UNSPECIFIED)),
                // RFC 5735
                '10.0.0.0/8' => array(RangeType::T_PRIVATENETWORK),
                // RFC 6598
                '100.64.0.0/10' => array(RangeType::T_CGNAT),
                // RFC 5735
                '127.0.0.0/8' => array(RangeType::T_LOOPBACK),
                // RFC 5735
                '169.254.0.0/16' => array(RangeType::T_LINKLOCAL),
                // RFC 5735
                '172.16.0.0/12' => array(RangeType::T_PRIVATENETWORK),
                // RFC 5735
                '192.0.0.0/24' => array(RangeType::T_RESERVED),
                // RFC 5735
                '192.0.2.0/24' => array(RangeType::T_RESERVED),
                // RFC 5735
                '192.88.99.0/24' => array(RangeType::T_ANYCASTRELAY),
                // RFC 5735
                '192.168.0.0/16' => array(RangeType::T_PRIVATENETWORK),
                // RFC 5735
                '198.18.0.0/15' => array(RangeType::T_RESERVED),
                // RFC 5735
                '198.51.100.0/24' => array(RangeType::T_RESERVED),
                // RFC 5735
                '203.0.113.0/24' => array(RangeType::T_RESERVED),
                // RFC 5735
                '224.0.0.0/4' => array(RangeType::T_MULTICAST),
                // RFC 5735
                '240.0.0.0/4' => array(RangeType::T_RESERVED, array('255.255.255.255/32' => RangeType::T_LIMITEDBROADCAST)),
            ) as $range => $data) {
                $exceptions = array();
                if (isset($data[1])) {

                    foreach ($data[1] as $exceptionRange => $exceptionType) {
                        $exceptions[] = new AssignedRange(Subnet::fromString($exceptionRange), $exceptionType);
                    }
                }
                $reservedRanges[] = new AssignedRange(Subnet::fromString($range), $data[0], $exceptions);
            }
            self::$reservedRanges = $reservedRanges;
        }

        return self::$reservedRanges;
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::getRangeType()
     */
    public function getRangeType()
    {
        if ($this->rangeType === null) {

            $rangeType = null;
            foreach (static::getReservedRanges() as $reservedRange) {
                $rangeType = $reservedRange->getAddressType($this);
                if ($rangeType !== null) {
                    break;
                }
            }
            $this->rangeType = $rangeType === null ? static::getDefaultReservedRangeType() : $rangeType;
        }

        return $this->rangeType;
    }

    /**
     * Create an IPv6 representation of this address (in 6to4 notation).
     *
     * @return \IPLib\Address\IPv6
     */
    public function toIPv6()
    {
        $myBytes = $this->getBytes();

        return IPv6::fromString('2002:' . sprintf('%02x', $myBytes[0]) . sprintf('%02x', $myBytes[1]) . ':' . sprintf('%02x', $myBytes[2]) . sprintf('%02x', $myBytes[3]) . '::');
    }

    /**
     * Create an IPv6 representation of this address (in IPv6 IPv4-mapped notation).
     *
     * @return \IPLib\Address\IPv6
     */
    public function toIPv6IPv4Mapped()
    {
        return IPv6::fromBytes(array_merge(array(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff), $this->getBytes()));
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::getComparableString()
     */
    public function getComparableString()
    {
        if ($this->comparableString === null) {
            $chunks = array();
            foreach ($this->getBytes() as $byte) {
                $chunks[] = sprintf('%03d', $byte);
            }
            $this->comparableString = implode('.', $chunks);
        }

        return $this->comparableString;
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::matches()
     */
    public function matches(RangeInterface $range)
    {
        return $range->contains($this);
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::getAddressAtOffset()
     */
    public function getAddressAtOffset($n)

    {
        if (!is_int($n)) {
            return null;
        }

        $boundary = 256;
        $mod = $n;
        $bytes = $this->getBytes();
        for ($i = count($bytes) - 1; $i >= 0; $i--) {
            $tmp = ($bytes[$i] + $mod) % $boundary;
            $mod = (int) floor(($bytes[$i] + $mod) / $boundary);
            if ($tmp < 0) {
                $tmp += $boundary;
            }

            $bytes[$i] = $tmp;
        }

        if ($mod !== 0) {
            return null;
        }

        return static::fromBytes($bytes);
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::getNextAddress()
     */
    public function getNextAddress()
    {
        return $this->getAddressAtOffset(1);
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::getPreviousAddress()
     */
    public function getPreviousAddress()
    {
        return $this->getAddressAtOffset(-1);
    }

    /**
     * {@inheritdoc}
     *
     * @see \IPLib\Address\AddressInterface::getReverseDNSLookupName()
     */
    public function getReverseDNSLookupName()
    {
        return implode(
            '.',
            array_reverse($this->getBytes())
        ) . '.in-addr.arpa';
    }
}


1			<?php
2
3			namespace IPLib\Address;
4
5			use IPLib\Range\RangeInterface;
6			use IPLib\Range\Subnet;
7			use IPLib\Range\Type as RangeType;
8
9			/**
10			* An IPv4 address.
11			*/
12			class IPv4 implements AddressInterface
13			{
14			/**
15			* The string representation of the address.
16			*
17			* @var string
18			*
19			* @example '127.0.0.1'
20			*/
21			protected $address;
22
23			/**
24			* The byte list of the IP address.
25			*
26			* @var int[]\|null
27			*/
28			protected $bytes;
29
30			/**
31			* The type of the range of this IP address.
32			*
33			* @var int\|null
34			*/
35			protected $rangeType;
36
37			/**
38			* A string representation of this address than can be used when comparing addresses and ranges.
39			*
40			* @var string
41			*/
42			protected $comparableString;
43
44			/**
45			* An array containing RFC designated address ranges.
46			*
47			* @var array\|null
48			*/
49			private static $reservedRanges = null;
50
51			/**
52			* Initializes the instance.
53			*
54			* @param string $address
55			*/
56	744		protected function __construct($address)
57			{
58	744		$this->address = $address;
59	744		$this->bytes = null;
60	744		$this->rangeType = null;
61	744		$this->comparableString = null;
62	744		}
63
64			/**
65			* {@inheritdoc}
66			*
67			* @see \IPLib\Address\AddressInterface::__toString()
68			*/
69	58		public function __toString()
70			{
71	58		return $this->address;
72			}
73
74			/**
75			* {@inheritdoc}
76			*
77			* @see \IPLib\Address\AddressInterface::getNumberOfBits()
78			*/
79	30		public static function getNumberOfBits()
80			{
81	30		return 32;
82			}
83
84			/**
85			* Parse a string and returns an IPv4 instance if the string is valid, or null otherwise.
86			*
87			* @param string\|mixed $address the address to parse
88			* @param bool $mayIncludePort set to false to avoid parsing addresses with ports
89			* @param bool $supportNonDecimalIPv4 set to true to support parsing non decimal (that is, octal and hexadecimal) IPv4 addresses
90			*
91			* @return static\|null
92			*/
93	1232		public static function fromString($address, $mayIncludePort = true, $supportNonDecimalIPv4 = false)
94			{
95	1232		if (!is_string($address) \|\| !strpos($address, '.')) {
96	489		return null;
97			}
98	756		$rxChunk = '0?[0-9]{1,3}';
99	756		if ($supportNonDecimalIPv4) {
100	32		$rxChunk = "(?:0[Xx]0*[0-9A-Fa-f]{1,2})\|(?:{$rxChunk})";
101			}
102	756		$rx = "0?({$rxChunk})\.0?({$rxChunk})\.0?({$rxChunk})\.0?({$rxChunk})";
103	756		if ($mayIncludePort) {
104	756		$rx .= '(?::\d+)?';
105			}
106	756		$matches = null;
107	756		if (!preg_match('/^' . $rx . '$/', $address, $matches)) {
108	27		return null;
109			}
110	738		$nums = array();
111	738		for ($i = 1; $i <= 4; $i++) {
112	738		$s = $matches[$i];
113	738		if ($supportNonDecimalIPv4) {
114	32		if (stripos($s, '0x') === 0) {
115	21		$n = hexdec(substr($s, 2));
116	32		} elseif ($s[0] === '0') {
117	32		if (!preg_match('/^[0-7]+$/', $s)) {
118	3		return null;
119			}
120	29		$n = octdec(substr($s, 1));
121			} else {
122	29		$n = (int) $s;
123			}
124			} else {
125	718		$n = (int) $s;
126			}
127	735		if ($n < 0 \|\| $n > 255) {
128	6		return null;
129			}
130	735		$nums[] = (string) $n;
131			}
132
133	729		return new static(implode('.', $nums));
134			}
135
136			/**
137			* Parse an array of bytes and returns an IPv4 instance if the array is valid, or null otherwise.
138			*
139			* @param int[]\|array $bytes
140			*
141			* @return static\|null
142			*/
143	662		public static function fromBytes(array $bytes)
144			{
145	662		$result = null;
146	662		if (count($bytes) === 4) {
147	376		$chunks = array_map(
148	376		function ($byte) {
149	376		return (is_int($byte) && $byte >= 0 && $byte <= 255) ? (string) $byte : false;
150	376		},
151	376		$bytes
152			);
153	376		if (in_array(false, $chunks, true) === false) {
154	376		$result = new static(implode('.', $chunks));
155			}
156			}
157
158	662		return $result;
159			}
160
161			/**
162			* {@inheritdoc}
163			*
164			* @see \IPLib\Address\AddressInterface::toString()
165			*/
166	618		public function toString($long = false)
167			{
168	618		if ($long) {
169	37		return $this->getComparableString();
170			}
171
172	618		return $this->address;
173			}
174
175			/**
176			* Get the octal representation of this IP address.
177			*
178			* @param bool $long
179			*
180			* @return string
181			*
182			* @example if $long == false: if the decimal representation is '0.7.8.255': '0.7.010.0377'
183			* @example if $long == true: if the decimal representation is '0.7.8.255': '0000.0007.0010.0377'
184			*/
185	12	View Code Duplication	public function toOctal($long = false)
			0 ignored issues – show Duplication introduced 2020-07-09 10:35 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
186			{
187	12		$chunks = array();
188	12		foreach ($this->getBytes() as $byte) {
189	12		if ($long) {
190	12		$chunks[] = sprintf('%04o', $byte);
191			} else {
192	12		$chunks[] = '0' . decoct($byte);
193			}
194			}
195
196	12		return implode('.', $chunks);
197			}
198
199			/**
200			* Get the hexadecimal representation of this IP address.
201			*
202			* @param bool $long
203			*
204			* @return string
205			*
206			* @example if $long == false: if the decimal representation is '0.9.10.255': '0.9.0xa.0xff'
207			* @example if $long == true: if the decimal representation is '0.9.10.255': '0x00.0x09.0x0a.0xff'
208			*/
209	12	View Code Duplication	public function toHexadecimal($long = false)
			0 ignored issues – show Duplication introduced 2020-07-09 10:35 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
210			{
211	12		$chunks = array();
212	12		foreach ($this->getBytes() as $byte) {
213	12		if ($long) {
214	12		$chunks[] = sprintf('0x%02x', $byte);
215			} else {
216	12		$chunks[] = '0x' . dechex($byte);
217			}
218			}
219
220	12		return implode('.', $chunks);
221			}
222
223			/**
224			* {@inheritdoc}
225			*
226			* @see \IPLib\Address\AddressInterface::getBytes()
227			*/
228	562		public function getBytes()
229			{
230	562		if ($this->bytes === null) {
231	562		$this->bytes = array_map(
232	562		function ($chunk) {
233	562		return (int) $chunk;
234	562		},
235	562		explode('.', $this->address)
236			);
237			}
238
239	562		return $this->bytes;
240			}
241
242			/**
243			* {@inheritdoc}
244			*
245			* @see \IPLib\Address\AddressInterface::getBits()
246			*/
247	29	View Code Duplication	public function getBits()
			0 ignored issues – show Duplication introduced 2020-12-24 09:51 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
248			{
249	29		$parts = array();
250	29		foreach ($this->getBytes() as $byte) {
251	29		$parts[] = sprintf('%08b', $byte);
252			}
253
254	29		return implode('', $parts);
255			}
256
257			/**
258			* {@inheritdoc}
259			*
260			* @see \IPLib\Address\AddressInterface::getAddressType()
261			*/
262	579		public function getAddressType()
263			{
264	579		return Type::T_IPv4;
265			}
266
267			/**
268			* {@inheritdoc}
269			*
270			* @see \IPLib\Address\AddressInterface::getDefaultReservedRangeType()
271			*/
272	173		public static function getDefaultReservedRangeType()
273			{
274	173		return RangeType::T_PUBLIC;
275			}
276
277			/**
278			* {@inheritdoc}
279			*
280			* @see \IPLib\Address\AddressInterface::getReservedRanges()
281			*/
282	341		public static function getReservedRanges()
283			{
284	341		if (self::$reservedRanges === null) {
285	1		$reservedRanges = array();
286			foreach (array(
287			// RFC 5735
288	1		'0.0.0.0/8' => array(RangeType::T_THISNETWORK, array('0.0.0.0/32' => RangeType::T_UNSPECIFIED)),
289			// RFC 5735
290			'10.0.0.0/8' => array(RangeType::T_PRIVATENETWORK),
291			// RFC 6598
292			'100.64.0.0/10' => array(RangeType::T_CGNAT),
293			// RFC 5735
294			'127.0.0.0/8' => array(RangeType::T_LOOPBACK),
295			// RFC 5735
296			'169.254.0.0/16' => array(RangeType::T_LINKLOCAL),
297			// RFC 5735
298			'172.16.0.0/12' => array(RangeType::T_PRIVATENETWORK),
299			// RFC 5735
300			'192.0.0.0/24' => array(RangeType::T_RESERVED),
301			// RFC 5735
302			'192.0.2.0/24' => array(RangeType::T_RESERVED),
303			// RFC 5735
304			'192.88.99.0/24' => array(RangeType::T_ANYCASTRELAY),
305			// RFC 5735
306			'192.168.0.0/16' => array(RangeType::T_PRIVATENETWORK),
307			// RFC 5735
308			'198.18.0.0/15' => array(RangeType::T_RESERVED),
309			// RFC 5735
310			'198.51.100.0/24' => array(RangeType::T_RESERVED),
311			// RFC 5735
312			'203.0.113.0/24' => array(RangeType::T_RESERVED),
313			// RFC 5735
314			'224.0.0.0/4' => array(RangeType::T_MULTICAST),
315			// RFC 5735
316			'240.0.0.0/4' => array(RangeType::T_RESERVED, array('255.255.255.255/32' => RangeType::T_LIMITEDBROADCAST)),
317			) as $range => $data) {
318	1		$exceptions = array();
319	1	View Code Duplication	if (isset($data[1])) {
			0 ignored issues – show Duplication introduced 2017-12-18 15:46 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
320	1		foreach ($data[1] as $exceptionRange => $exceptionType) {
321	1		$exceptions[] = new AssignedRange(Subnet::fromString($exceptionRange), $exceptionType);
322			}
323			}
324	1		$reservedRanges[] = new AssignedRange(Subnet::fromString($range), $data[0], $exceptions);
325			}
326	1		self::$reservedRanges = $reservedRanges;
327			}
328
329	341		return self::$reservedRanges;
330			}
331
332			/**
333			* {@inheritdoc}
334			*
335			* @see \IPLib\Address\AddressInterface::getRangeType()
336			*/
337	171		public function getRangeType()
338			{
339	171	View Code Duplication	if ($this->rangeType === null) {
			0 ignored issues – show Duplication introduced 2017-12-18 15:46 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
340	171		$rangeType = null;
341	171		foreach (static::getReservedRanges() as $reservedRange) {
342	171		$rangeType = $reservedRange->getAddressType($this);
343	171		if ($rangeType !== null) {
344	171		break;
345			}
346			}
347	171		$this->rangeType = $rangeType === null ? static::getDefaultReservedRangeType() : $rangeType;
348			}
349
350	171		return $this->rangeType;
351			}
352
353			/**
354			* Create an IPv6 representation of this address (in 6to4 notation).
355			*
356			* @return \IPLib\Address\IPv6
357			*/
358	4		public function toIPv6()
359			{
360	4		$myBytes = $this->getBytes();
361
362	4		return IPv6::fromString('2002:' . sprintf('%02x', $myBytes[0]) . sprintf('%02x', $myBytes[1]) . ':' . sprintf('%02x', $myBytes[2]) . sprintf('%02x', $myBytes[3]) . '::');
363			}
364
365			/**
366			* Create an IPv6 representation of this address (in IPv6 IPv4-mapped notation).
367			*
368			* @return \IPLib\Address\IPv6
369			*/
370	4		public function toIPv6IPv4Mapped()
371			{
372	4		return IPv6::fromBytes(array_merge(array(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff), $this->getBytes()));
373			}
374
375			/**
376			* {@inheritdoc}
377			*
378			* @see \IPLib\Address\AddressInterface::getComparableString()
379			*/
380	416		public function getComparableString()
381			{
382	416		if ($this->comparableString === null) {
383	416		$chunks = array();
384	416		foreach ($this->getBytes() as $byte) {
385	416		$chunks[] = sprintf('%03d', $byte);
386			}
387	416		$this->comparableString = implode('.', $chunks);
388			}
389
390	416		return $this->comparableString;
391			}
392
393			/**
394			* {@inheritdoc}
395			*
396			* @see \IPLib\Address\AddressInterface::matches()
397			*/
398	11		public function matches(RangeInterface $range)
399			{
400	11		return $range->contains($this);
401			}
402
403			/**
404			* {@inheritdoc}
405			*
406			* @see \IPLib\Address\AddressInterface::getAddressAtOffset()
407			*/
408	9	View Code Duplication	public function getAddressAtOffset($n)
			0 ignored issues – show Duplication introduced 2017-08-30 14:39 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
409			{
410	9		if (!is_int($n)) {
411	9		return null;
412	9		}
413	9
414	6		$boundary = 256;
415	1		$mod = $n;
416	1		$bytes = $this->getBytes();
417			for ($i = count($bytes) - 1; $i >= 0; $i--) {
418	6		$tmp = ($bytes[$i] + $mod) % $boundary;
419			$mod = (int) floor(($bytes[$i] + $mod) / $boundary);
420	9		if ($tmp < 0) {
421	9		$tmp += $boundary;
422			}
423
424			$bytes[$i] = $tmp;
425	9		}
426
427			if ($mod !== 0) {
428			return null;
429			}
430
431			return static::fromBytes($bytes);
432			}
433	9
434			/**
435	9		* {@inheritdoc}
436	9		*
437	9		* @see \IPLib\Address\AddressInterface::getNextAddress()
438	9		*/
439	6		public function getNextAddress()
440	1		{
441	1		return $this->getAddressAtOffset(1);
442			}
443	6
444			/**
445	9		* {@inheritdoc}
446	9		*
447			* @see \IPLib\Address\AddressInterface::getPreviousAddress()
448			*/
449			public function getPreviousAddress()
450	9		{
451			return $this->getAddressAtOffset(-1);
452			}
453
454			/**
455			* {@inheritdoc}
456			*
457			* @see \IPLib\Address\AddressInterface::getReverseDNSLookupName()
458	14		*/
459			public function getReverseDNSLookupName()
460	14		{
461	14		return implode(
462	14		'.',
463	14		array_reverse($this->getBytes())
464			) . '.in-addr.arpa';
465			}
466			}
467

mlocati / ip-lib

Pull Request — master (#60)

IPv4::getAddressAtOffset() A

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Duplication

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