IPv4::getReverseDNSLookupName() - Code Metrics - Inspection of "Merge pull request #45 from mlocati/rdns-address" - mlocati/ip-lib - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 169aa5...85a727 )

by Michele

created 2020-07-27 11:38 UTC

IPv4::getReverseDNSLookupName() A

↳ Parent: IPv4

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	7
ccs	0
cts	0
cp	0
rs	10
c	0
b	0
f	0
cc	1
nc	1
nop	0
crap	2

<?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;
    }

    /**
     * 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::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);
/** @return stdClass|null */
function mayReturnNull() { }

function doesNotAcceptNull(stdClass $x) { }

// With potential error.
function withoutCheck() {
    $x = mayReturnNull();
    doesNotAcceptNull($x); // Potential error here.
}

// Safe - Alternative 1
function withCheck1() {
    $x = mayReturnNull();
    if ( ! $x instanceof stdClass) {
        throw new \LogicException('$x must be defined.');
    }
    doesNotAcceptNull($x);
}

// Safe - Alternative 2
function withCheck2() {
    $x = mayReturnNull();
    if ($x instanceof stdClass) {
        doesNotAcceptNull($x);
    }
}
                    }
                }
                $reservedRanges[] = new AssignedRange(Subnet::fromString($range), $data[0], $exceptions);
/** @return stdClass|null */
function mayReturnNull() { }

function doesNotAcceptNull(stdClass $x) { }

// With potential error.
function withoutCheck() {
    $x = mayReturnNull();
    doesNotAcceptNull($x); // Potential error here.
}

// Safe - Alternative 1
function withCheck1() {
    $x = mayReturnNull();
    if ( ! $x instanceof stdClass) {
        throw new \LogicException('$x must be defined.');
    }
    doesNotAcceptNull($x);
}

// Safe - Alternative 2
function withCheck2() {
    $x = mayReturnNull();
    if ($x instanceof stdClass) {
        doesNotAcceptNull($x);
    }
}
            }
            self::$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::getNextAddress()
     */
    public function getNextAddress()

    {
        $overflow = false;
        $bytes = $this->getBytes();
        for ($i = count($bytes) - 1; $i >= 0; $i--) {
            if ($bytes[$i] === 255) {
                if ($i === 0) {
                    $overflow = true;
                    break;
                }
                $bytes[$i] = 0;
            } else {
                $bytes[$i]++;
                break;
            }
        }

        return $overflow ? null : static::fromBytes($bytes);
    }

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

    {
        $overflow = false;
        $bytes = $this->getBytes();
        for ($i = count($bytes) - 1; $i >= 0; $i--) {
            if ($bytes[$i] === 0) {
                if ($i === 0) {
                    $overflow = true;
                    break;
                }
                $bytes[$i] = 255;
            } else {
                $bytes[$i]--;
                break;
            }
        }

        return $overflow ? null : static::fromBytes($bytes);
    }

    /**
     * {@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 $address
55			*/
56	696		protected function __construct($address)
57			{
58	696		$this->address = $address;
59	696		$this->bytes = null;
60	696		$this->rangeType = null;
61	696		$this->comparableString = null;
62	696		}
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			* Parse a string and returns an IPv4 instance if the string is valid, or null otherwise.
76			*
77			* @param string\|mixed $address the address to parse
78			* @param bool $mayIncludePort set to false to avoid parsing addresses with ports
79			* @param bool $supportNonDecimalIPv4 set to true to support parsing non decimal (that is, octal and hexadecimal) IPv4 addresses
80			*
81			* @return static\|null
82			*/
83	1138		public static function fromString($address, $mayIncludePort = true, $supportNonDecimalIPv4 = false)
84			{
85	1138		if (!is_string($address) \|\| !strpos($address, '.')) {
86	439		return null;
87			}
88	708		$rxChunk = '0?[0-9]{1,3}';
89	708		if ($supportNonDecimalIPv4) {
90	32		$rxChunk = "(?:0[Xx]0*[0-9A-Fa-f]{1,2})\|(?:{$rxChunk})";
91			}
92	708		$rx = "0?({$rxChunk})\.0?({$rxChunk})\.0?({$rxChunk})\.0?({$rxChunk})";
93	708		if ($mayIncludePort) {
94	708		$rx .= '(?::\d+)?';
95			}
96	708		$matches = null;
97	708		if (!preg_match('/^' . $rx . '$/', $address, $matches)) {
98	27		return null;
99			}
100	690		$nums = array();
101	690		for ($i = 1; $i <= 4; $i++) {
102	690		$s = $matches[$i];
103	690		if ($supportNonDecimalIPv4) {
104	32		if (stripos($s, '0x') === 0) {
105	21		$n = hexdec(substr($s, 2));
106	32		} elseif ($s[0] === '0') {
107	32		if (!preg_match('/^[0-7]+$/', $s)) {
108	3		return null;
109			}
110	29		$n = octdec(substr($s, 1));
111			} else {
112	29		$n = (int) $s;
113			}
114			} else {
115	670		$n = (int) $s;
116			}
117	687		if ($n < 0 \|\| $n > 255) {
118	6		return null;
119			}
120	687		$nums[] = (string) $n;
121			}
122
123	681		return new static(implode('.', $nums));
124			}
125
126			/**
127			* Parse an array of bytes and returns an IPv4 instance if the array is valid, or null otherwise.
128			*
129			* @param int[]\|array $bytes
130			*
131			* @return static\|null
132			*/
133	610		public static function fromBytes(array $bytes)
134			{
135	610		$result = null;
136	610		if (count($bytes) === 4) {
137	345		$chunks = array_map(
138	345		function ($byte) {
139	345		return (is_int($byte) && $byte >= 0 && $byte <= 255) ? (string) $byte : false;
140	345		},
141	345		$bytes
142			);
143	345		if (in_array(false, $chunks, true) === false) {
144	345		$result = new static(implode('.', $chunks));
145			}
146			}
147
148	610		return $result;
149			}
150
151			/**
152			* {@inheritdoc}
153			*
154			* @see \IPLib\Address\AddressInterface::toString()
155			*/
156	581		public function toString($long = false)
157			{
158	581		if ($long) {
159	37		return $this->getComparableString();
160			}
161
162	581		return $this->address;
163			}
164
165			/**
166			* Get the octal representation of this IP address.
167			*
168			* @param bool $long
169			*
170			* @return string
171			*
172			* @example if $long == false: if the decimal representation is '0.7.8.255': '0.7.010.0377'
173			* @example if $long == true: if the decimal representation is '0.7.8.255': '0000.0007.0010.0377'
174			*/
175	12	View Code Duplication	public function toOctal($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...
176			{
177	12		$chunks = array();
178	12		foreach ($this->getBytes() as $byte) {
179	12		if ($long) {
180	12		$chunks[] = sprintf('%04o', $byte);
181			} else {
182	12		$chunks[] = '0' . decoct($byte);
183			}
184			}
185
186	12		return implode('.', $chunks);
187			}
188
189			/**
190			* Get the hexadecimal representation of this IP address.
191			*
192			* @param bool $long
193			*
194			* @return string
195			*
196			* @example if $long == false: if the decimal representation is '0.9.10.255': '0.9.0xa.0xff'
197			* @example if $long == true: if the decimal representation is '0.9.10.255': '0x00.0x09.0x0a.0xff'
198			*/
199	12	View Code Duplication	public function toHexadecimal($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...
200			{
201	12		$chunks = array();
202	12		foreach ($this->getBytes() as $byte) {
203	12		if ($long) {
204	12		$chunks[] = sprintf('0x%02x', $byte);
205			} else {
206	12		$chunks[] = '0x' . dechex($byte);
207			}
208			}
209
210	12		return implode('.', $chunks);
211			}
212
213			/**
214			* {@inheritdoc}
215			*
216			* @see \IPLib\Address\AddressInterface::getBytes()
217			*/
218	517		public function getBytes()
219			{
220	517		if ($this->bytes === null) {
221	517		$this->bytes = array_map(
222	517		function ($chunk) {
223	517		return (int) $chunk;
224	517		},
225	517		explode('.', $this->address)
226			);
227			}
228
229	517		return $this->bytes;
230			}
231
232			/**
233			* {@inheritdoc}
234			*
235			* @see \IPLib\Address\AddressInterface::getAddressType()
236			*/
237	570		public function getAddressType()
238			{
239	570		return Type::T_IPv4;
240			}
241
242			/**
243			* {@inheritdoc}
244			*
245			* @see \IPLib\Address\AddressInterface::getDefaultReservedRangeType()
246			*/
247	173		public static function getDefaultReservedRangeType()
248			{
249	173		return RangeType::T_PUBLIC;
250			}
251
252			/**
253			* {@inheritdoc}
254			*
255			* @see \IPLib\Address\AddressInterface::getReservedRanges()
256			*/
257	341		public static function getReservedRanges()
258			{
259	341		if (self::$reservedRanges === null) {
260	1		$reservedRanges = array();
261			foreach (array(
262			// RFC 5735
263	1		'0.0.0.0/8' => array(RangeType::T_THISNETWORK, array('0.0.0.0/32' => RangeType::T_UNSPECIFIED)),
264			// RFC 5735
265			'10.0.0.0/8' => array(RangeType::T_PRIVATENETWORK),
266			// RFC 6598
267			'100.64.0.0/10' => array(RangeType::T_CGNAT),
268			// RFC 5735
269			'127.0.0.0/8' => array(RangeType::T_LOOPBACK),
270			// RFC 5735
271			'169.254.0.0/16' => array(RangeType::T_LINKLOCAL),
272			// RFC 5735
273			'172.16.0.0/12' => array(RangeType::T_PRIVATENETWORK),
274			// RFC 5735
275			'192.0.0.0/24' => array(RangeType::T_RESERVED),
276			// RFC 5735
277			'192.0.2.0/24' => array(RangeType::T_RESERVED),
278			// RFC 5735
279			'192.88.99.0/24' => array(RangeType::T_ANYCASTRELAY),
280			// RFC 5735
281			'192.168.0.0/16' => array(RangeType::T_PRIVATENETWORK),
282			// RFC 5735
283			'198.18.0.0/15' => array(RangeType::T_RESERVED),
284			// RFC 5735
285			'198.51.100.0/24' => array(RangeType::T_RESERVED),
286			// RFC 5735
287			'203.0.113.0/24' => array(RangeType::T_RESERVED),
288			// RFC 5735
289			'224.0.0.0/4' => array(RangeType::T_MULTICAST),
290			// RFC 5735
291			'240.0.0.0/4' => array(RangeType::T_RESERVED, array('255.255.255.255/32' => RangeType::T_LIMITEDBROADCAST)),
292			) as $range => $data) {
293	1		$exceptions = array();
294	1	View Code Duplication	if (isset($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...
295	1		foreach ($data[1] as $exceptionRange => $exceptionType) {
296	1		$exceptions[] = new AssignedRange(Subnet::fromString($exceptionRange), $exceptionType);
			1 ignored issue – show Bug introduced 2017-12-18 15:46 UTC by Report Bug Copy Issue Report It seems like `\IPLib\Range\Subnet::fromString($exceptionRange)` can be `null`; however, `__construct()` does not accept `null`, maybe add an additional type check? Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: /** @return stdClass\|null */ function mayReturnNull() { } function doesNotAcceptNull(stdClass $x) { } // With potential error. function withoutCheck() { $x = mayReturnNull(); doesNotAcceptNull($x); // Potential error here. } // Safe - Alternative 1 function withCheck1() { $x = mayReturnNull(); if ( ! $x instanceof stdClass) { throw new \LogicException('$x must be defined.'); } doesNotAcceptNull($x); } // Safe - Alternative 2 function withCheck2() { $x = mayReturnNull(); if ($x instanceof stdClass) { doesNotAcceptNull($x); } } Loading history...
297			}
298			}
299	1		$reservedRanges[] = new AssignedRange(Subnet::fromString($range), $data[0], $exceptions);
			1 ignored issue – show Bug introduced 2017-12-18 15:46 UTC by Report Bug Copy Issue Report It seems like `\IPLib\Range\Subnet::fromString($range)` can be `null`; however, `__construct()` does not accept `null`, maybe add an additional type check? Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: /** @return stdClass\|null */ function mayReturnNull() { } function doesNotAcceptNull(stdClass $x) { } // With potential error. function withoutCheck() { $x = mayReturnNull(); doesNotAcceptNull($x); // Potential error here. } // Safe - Alternative 1 function withCheck1() { $x = mayReturnNull(); if ( ! $x instanceof stdClass) { throw new \LogicException('$x must be defined.'); } doesNotAcceptNull($x); } // Safe - Alternative 2 function withCheck2() { $x = mayReturnNull(); if ($x instanceof stdClass) { doesNotAcceptNull($x); } } Loading history...
300			}
301	1		self::$reservedRanges = $reservedRanges;
302			}
303
304	341		return self::$reservedRanges;
305			}
306
307			/**
308			* {@inheritdoc}
309			*
310			* @see \IPLib\Address\AddressInterface::getRangeType()
311			*/
312	171		public function getRangeType()
313			{
314	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...
315	171		$rangeType = null;
316	171		foreach (static::getReservedRanges() as $reservedRange) {
317	171		$rangeType = $reservedRange->getAddressType($this);
318	171		if ($rangeType !== null) {
319	171		break;
320			}
321			}
322	171		$this->rangeType = $rangeType === null ? static::getDefaultReservedRangeType() : $rangeType;
323			}
324
325	171		return $this->rangeType;
326			}
327
328			/**
329			* Create an IPv6 representation of this address (in 6to4 notation).
330			*
331			* @return \IPLib\Address\IPv6
332			*/
333	4		public function toIPv6()
334			{
335	4		$myBytes = $this->getBytes();
336
337	4		return IPv6::fromString('2002:' . sprintf('%02x', $myBytes[0]) . sprintf('%02x', $myBytes[1]) . ':' . sprintf('%02x', $myBytes[2]) . sprintf('%02x', $myBytes[3]) . '::');
338			}
339
340			/**
341			* Create an IPv6 representation of this address (in IPv6 IPv4-mapped notation).
342			*
343			* @return \IPLib\Address\IPv6
344			*/
345	4		public function toIPv6IPv4Mapped()
346			{
347	4		return IPv6::fromBytes(array_merge(array(0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff), $this->getBytes()));
348			}
349
350			/**
351			* {@inheritdoc}
352			*
353			* @see \IPLib\Address\AddressInterface::getComparableString()
354			*/
355	391		public function getComparableString()
356			{
357	391		if ($this->comparableString === null) {
358	391		$chunks = array();
359	391		foreach ($this->getBytes() as $byte) {
360	391		$chunks[] = sprintf('%03d', $byte);
361			}
362	391		$this->comparableString = implode('.', $chunks);
363			}
364
365	391		return $this->comparableString;
366			}
367
368			/**
369			* {@inheritdoc}
370			*
371			* @see \IPLib\Address\AddressInterface::matches()
372			*/
373	11		public function matches(RangeInterface $range)
374			{
375	11		return $range->contains($this);
376			}
377
378			/**
379			* {@inheritdoc}
380			*
381			* @see \IPLib\Address\AddressInterface::getNextAddress()
382			*/
383	9	View Code Duplication	public function getNextAddress()
			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...
384			{
385	9		$overflow = false;
386	9		$bytes = $this->getBytes();
387	9		for ($i = count($bytes) - 1; $i >= 0; $i--) {
388	9		if ($bytes[$i] === 255) {
389	6		if ($i === 0) {
390	1		$overflow = true;
391	1		break;
392			}
393	6		$bytes[$i] = 0;
394			} else {
395	9		$bytes[$i]++;
396	9		break;
397			}
398			}
399
400	9		return $overflow ? null : static::fromBytes($bytes);
401			}
402
403			/**
404			* {@inheritdoc}
405			*
406			* @see \IPLib\Address\AddressInterface::getPreviousAddress()
407			*/
408	9	View Code Duplication	public function getPreviousAddress()
			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		$overflow = false;
411	9		$bytes = $this->getBytes();
412	9		for ($i = count($bytes) - 1; $i >= 0; $i--) {
413	9		if ($bytes[$i] === 0) {
414	6		if ($i === 0) {
415	1		$overflow = true;
416	1		break;
417			}
418	6		$bytes[$i] = 255;
419			} else {
420	9		$bytes[$i]--;
421	9		break;
422			}
423			}
424
425	9		return $overflow ? null : static::fromBytes($bytes);
426			}
427
428			/**
429			* {@inheritdoc}
430			*
431			* @see \IPLib\Address\AddressInterface::getReverseDNSLookupName()
432			*/
433			public function getReverseDNSLookupName()
434			{
435			return implode(
436			'.',
437			array_reverse($this->getBytes())
438			) . '.in-addr.arpa';
439			}
440			}
441

mlocati / ip-lib

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IPv4::getReverseDNSLookupName() A

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