DomainPart::isLabelTooLong() - Code Metrics - Inspection of "Fix labels length check (#278)" - egulias/EmailValidator - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( 087837...0dbf5d )

by Eduardo Gulias

created 2020-12-29 14:50 UTC

DomainPart::isLabelTooLong() A

↳ Parent: DomainPart

Complexity

Conditions	2
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	10
ccs	5
cts	5
cp	1
rs	9.9332
c	0
b	0
f	0
cc	2
nc	2
nop	1
crap	2

<?php

namespace Egulias\EmailValidator\Parser;

use Egulias\EmailValidator\EmailLexer;
use Egulias\EmailValidator\Exception\CharNotAllowed;
use Egulias\EmailValidator\Exception\CommaInDomain;
use Egulias\EmailValidator\Exception\ConsecutiveAt;
use Egulias\EmailValidator\Exception\CRLFAtTheEnd;
use Egulias\EmailValidator\Exception\CRNoLF;
use Egulias\EmailValidator\Exception\DomainHyphened;
use Egulias\EmailValidator\Exception\DotAtEnd;
use Egulias\EmailValidator\Exception\DotAtStart;
use Egulias\EmailValidator\Exception\ExpectingATEXT;
use Egulias\EmailValidator\Exception\ExpectingDomainLiteralClose;
use Egulias\EmailValidator\Exception\ExpectingDTEXT;
use Egulias\EmailValidator\Exception\NoDomainPart;
use Egulias\EmailValidator\Exception\UnopenedComment;
use Egulias\EmailValidator\Warning\AddressLiteral;
use Egulias\EmailValidator\Warning\CFWSWithFWS;
use Egulias\EmailValidator\Warning\DeprecatedComment;
use Egulias\EmailValidator\Warning\DomainLiteral;
use Egulias\EmailValidator\Warning\DomainTooLong;
use Egulias\EmailValidator\Warning\IPV6BadChar;
use Egulias\EmailValidator\Warning\IPV6ColonEnd;
use Egulias\EmailValidator\Warning\IPV6ColonStart;
use Egulias\EmailValidator\Warning\IPV6Deprecated;
use Egulias\EmailValidator\Warning\IPV6DoubleColon;
use Egulias\EmailValidator\Warning\IPV6GroupCount;
use Egulias\EmailValidator\Warning\IPV6MaxGroups;
use Egulias\EmailValidator\Warning\LabelTooLong;
use Egulias\EmailValidator\Warning\ObsoleteDTEXT;
use Egulias\EmailValidator\Warning\TLD;

class DomainPart extends Parser
{
    const DOMAIN_MAX_LENGTH = 254;
    const LABEL_MAX_LENGTH = 63;

    /**
     * @var string
     */
    protected $domainPart = '';

    public function parse($domainPart)
    {
        $this->lexer->moveNext();

        $this->performDomainStartChecks();

        $domain = $this->doParseDomainPart();

        $prev = $this->lexer->getPrevious();
        $length = strlen($domain);

        if ($prev['type'] === EmailLexer::S_DOT) {
            throw new DotAtEnd();
        }
        if ($prev['type'] === EmailLexer::S_HYPHEN) {
            throw new DomainHyphened();
        }
        if ($length > self::DOMAIN_MAX_LENGTH) {
            $this->warnings[DomainTooLong::CODE] = new DomainTooLong();
        }
        if ($prev['type'] === EmailLexer::S_CR) {
            throw new CRLFAtTheEnd();
        }
        $this->domainPart = $domain;
    }

    private function performDomainStartChecks()
    {
        $this->checkInvalidTokensAfterAT();
        $this->checkEmptyDomain();

        if ($this->lexer->token['type'] === EmailLexer::S_OPENPARENTHESIS) {
            $this->warnings[DeprecatedComment::CODE] = new DeprecatedComment();
            $this->parseDomainComments();
        }
    }

    private function checkEmptyDomain()
    {
        $thereIsNoDomain = $this->lexer->token['type'] === EmailLexer::S_EMPTY ||
            ($this->lexer->token['type'] === EmailLexer::S_SP &&
            !$this->lexer->isNextToken(EmailLexer::GENERIC));

        if ($thereIsNoDomain) {
            throw new NoDomainPart();
        }
    }

    private function checkInvalidTokensAfterAT()
    {
        if ($this->lexer->token['type'] === EmailLexer::S_DOT) {
            throw new DotAtStart();
        }
        if ($this->lexer->token['type'] === EmailLexer::S_HYPHEN) {
            throw new DomainHyphened();
        }
    }

    /**
     * @return string
     */
    public function getDomainPart()
    {
        return $this->domainPart;
    }

    /**
     * @param string $addressLiteral
     * @param int $maxGroups
     */
    public function checkIPV6Tag($addressLiteral, $maxGroups = 8)
    {
        $prev = $this->lexer->getPrevious();
        if ($prev['type'] === EmailLexer::S_COLON) {
            $this->warnings[IPV6ColonEnd::CODE] = new IPV6ColonEnd();
        }

        $IPv6       = substr($addressLiteral, 5);
        //Daniel Marschall's new IPv6 testing strategy
        $matchesIP  = explode(':', $IPv6);
        $groupCount = count($matchesIP);
        $colons     = strpos($IPv6, '::');

        if (count(preg_grep('/^[0-9A-Fa-f]{0,4}$/', $matchesIP, PREG_GREP_INVERT)) !== 0) {
            $this->warnings[IPV6BadChar::CODE] = new IPV6BadChar();
        }

        if ($colons === false) {
            // We need exactly the right number of groups
            if ($groupCount !== $maxGroups) {
                $this->warnings[IPV6GroupCount::CODE] = new IPV6GroupCount();
            }
            return;
        }

        if ($colons !== strrpos($IPv6, '::')) {
            $this->warnings[IPV6DoubleColon::CODE] = new IPV6DoubleColon();
            return;
        }

        if ($colons === 0 || $colons === (strlen($IPv6) - 2)) {
            // RFC 4291 allows :: at the start or end of an address
            //with 7 other groups in addition
            ++$maxGroups;
        }

        if ($groupCount > $maxGroups) {
            $this->warnings[IPV6MaxGroups::CODE] = new IPV6MaxGroups();
        } elseif ($groupCount === $maxGroups) {
            $this->warnings[IPV6Deprecated::CODE] = new IPV6Deprecated();
        }
    }

    /**
     * @return string
     */
    protected function doParseDomainPart()
    {
        $domain = '';
        $label = '';
        $openedParenthesis = 0;
        do {
            $prev = $this->lexer->getPrevious();

            $this->checkNotAllowedChars($this->lexer->token);

            if ($this->lexer->token['type'] === EmailLexer::S_OPENPARENTHESIS) {
                $this->parseComments();
                $openedParenthesis += $this->getOpenedParenthesis();
                $this->lexer->moveNext();
                $tmpPrev = $this->lexer->getPrevious();
                if ($tmpPrev['type'] === EmailLexer::S_CLOSEPARENTHESIS) {
                    $openedParenthesis--;
                }
            }
            if ($this->lexer->token['type'] === EmailLexer::S_CLOSEPARENTHESIS) {

                if ($openedParenthesis === 0) {
                    throw new UnopenedComment();
                } else {
                    $openedParenthesis--;
                }
            }

            $this->checkConsecutiveDots();
            $this->checkDomainPartExceptions($prev);

            if ($this->hasBrackets()) {
                $this->parseDomainLiteral();
            }

            if ($this->lexer->token['type'] === EmailLexer::S_DOT) {
                $this->checkLabelLength($label);
                $label = '';
            } else {
                $label .= $this->lexer->token['value'];
            }

            if ($this->isFWS()) {
                $this->parseFWS();
            }

            $domain .= $this->lexer->token['value'];
            $this->lexer->moveNext();
            if ($this->lexer->token['type'] === EmailLexer::S_SP) {
                throw new CharNotAllowed();
            }
        } while (null !== $this->lexer->token['type']);

        $this->checkLabelLength($label);

        return $domain;
    }

    private function checkNotAllowedChars(array $token)
    {
        $notAllowed = [EmailLexer::S_BACKSLASH => true, EmailLexer::S_SLASH=> true];
        if (isset($notAllowed[$token['type']])) {
            throw new CharNotAllowed();
        }
    }

    /**
     * @return string|false
     */
    protected function parseDomainLiteral()
    {
        if ($this->lexer->isNextToken(EmailLexer::S_COLON)) {
            $this->warnings[IPV6ColonStart::CODE] = new IPV6ColonStart();
        }
        if ($this->lexer->isNextToken(EmailLexer::S_IPV6TAG)) {
            $lexer = clone $this->lexer;
            $lexer->moveNext();
            if ($lexer->isNextToken(EmailLexer::S_DOUBLECOLON)) {
                $this->warnings[IPV6ColonStart::CODE] = new IPV6ColonStart();
            }
        }

        return $this->doParseDomainLiteral();
    }

    /**
     * @return string|false
     */
    protected function doParseDomainLiteral()
    {
        $IPv6TAG = false;
        $addressLiteral = '';
        do {
            if ($this->lexer->token['type'] === EmailLexer::C_NUL) {
                throw new ExpectingDTEXT();
            }

            if ($this->lexer->token['type'] === EmailLexer::INVALID ||
                $this->lexer->token['type'] === EmailLexer::C_DEL   ||
                $this->lexer->token['type'] === EmailLexer::S_LF
            ) {
                $this->warnings[ObsoleteDTEXT::CODE] = new ObsoleteDTEXT();
            }

            if ($this->lexer->isNextTokenAny(array(EmailLexer::S_OPENQBRACKET, EmailLexer::S_OPENBRACKET))) {
                throw new ExpectingDTEXT();
            }

            if ($this->lexer->isNextTokenAny(
                array(EmailLexer::S_HTAB, EmailLexer::S_SP, $this->lexer->token['type'] === EmailLexer::CRLF)
            )) {
                $this->warnings[CFWSWithFWS::CODE] = new CFWSWithFWS();
                $this->parseFWS();
            }

            if ($this->lexer->isNextToken(EmailLexer::S_CR)) {
                throw new CRNoLF();
            }

            if ($this->lexer->token['type'] === EmailLexer::S_BACKSLASH) {
                $this->warnings[ObsoleteDTEXT::CODE] = new ObsoleteDTEXT();
                $addressLiteral .= $this->lexer->token['value'];
                $this->lexer->moveNext();
                $this->validateQuotedPair();
            }
            if ($this->lexer->token['type'] === EmailLexer::S_IPV6TAG) {
                $IPv6TAG = true;
            }
            if ($this->lexer->token['type'] === EmailLexer::S_CLOSEQBRACKET) {
                break;
            }

            $addressLiteral .= $this->lexer->token['value'];

        } while ($this->lexer->moveNext());

        $addressLiteral = str_replace('[', '', $addressLiteral);
        $addressLiteral = $this->checkIPV4Tag($addressLiteral);

        if (false === $addressLiteral) {
            return $addressLiteral;
        }

        if (!$IPv6TAG) {
            $this->warnings[DomainLiteral::CODE] = new DomainLiteral();
            return $addressLiteral;
        }

        $this->warnings[AddressLiteral::CODE] = new AddressLiteral();

        $this->checkIPV6Tag($addressLiteral);

        return $addressLiteral;
    }

    /**
     * @param string $addressLiteral
     *
     * @return string|false
     */
    protected function checkIPV4Tag($addressLiteral)
    {
        $matchesIP  = array();

        // Extract IPv4 part from the end of the address-literal (if there is one)
        if (preg_match(
            '/\\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/',
            $addressLiteral,
            $matchesIP
        ) > 0
        ) {
            $index = strrpos($addressLiteral, $matchesIP[0]);
            if ($index === 0) {
                $this->warnings[AddressLiteral::CODE] = new AddressLiteral();
                return false;
            }
            // Convert IPv4 part to IPv6 format for further testing
            $addressLiteral = substr($addressLiteral, 0, (int) $index) . '0:0';
        }

        return $addressLiteral;
    }

    protected function checkDomainPartExceptions(array $prev)
    {
        $invalidDomainTokens = array(
            EmailLexer::S_DQUOTE => true,
            EmailLexer::S_SQUOTE => true,
            EmailLexer::S_BACKTICK => true,
            EmailLexer::S_SEMICOLON => true,
            EmailLexer::S_GREATERTHAN => true,
            EmailLexer::S_LOWERTHAN => true,
        );

        if (isset($invalidDomainTokens[$this->lexer->token['type']])) {
            throw new ExpectingATEXT();
        }

        if ($this->lexer->token['type'] === EmailLexer::S_COMMA) {
            throw new CommaInDomain();
        }

        if ($this->lexer->token['type'] === EmailLexer::S_AT) {
            throw new ConsecutiveAt();
        }

        if ($this->lexer->token['type'] === EmailLexer::S_OPENQBRACKET && $prev['type'] !== EmailLexer::S_AT) {

            throw new ExpectingATEXT();
        }

        if ($this->lexer->token['type'] === EmailLexer::S_HYPHEN && $this->lexer->isNextToken(EmailLexer::S_DOT)) {

            throw new DomainHyphened();
        }

        if ($this->lexer->token['type'] === EmailLexer::S_BACKSLASH

            && $this->lexer->isNextToken(EmailLexer::GENERIC)) {
            throw new ExpectingATEXT();
        }
    }

    /**
     * @return bool
     */
    protected function hasBrackets()
    {
        if ($this->lexer->token['type'] !== EmailLexer::S_OPENBRACKET) {
            return false;
        }

        try {
            $this->lexer->find(EmailLexer::S_CLOSEBRACKET);
        } catch (\RuntimeException $e) {
            throw new ExpectingDomainLiteralClose();
        }

        return true;
    }

    /**
     * @param string $label
     */
    protected function checkLabelLength($label)
    {
        if ($this->isLabelTooLong($label)) {
            $this->warnings[LabelTooLong::CODE] = new LabelTooLong();
        }
    }

    /**
     * @param string $label
     * @return bool
     */
    private function isLabelTooLong($label)
    {
        if (preg_match('/[^\x00-\x7F]/', $label)) {
            idn_to_ascii($label, IDNA_DEFAULT, INTL_IDNA_VARIANT_UTS46, $idnaInfo);


            return (bool) ($idnaInfo['errors'] & IDNA_ERROR_LABEL_TOO_LONG);
        }

        return strlen($label) > self::LABEL_MAX_LENGTH;
    }

    protected function parseDomainComments()
    {
        $this->isUnclosedComment();
        while (!$this->lexer->isNextToken(EmailLexer::S_CLOSEPARENTHESIS)) {
            $this->warnEscaping();
            $this->lexer->moveNext();
        }

        $this->lexer->moveNext();
        if ($this->lexer->isNextToken(EmailLexer::S_DOT)) {
            throw new ExpectingATEXT();
        }
    }

    protected function addTLDWarnings()
    {
        if ($this->warnings[DomainLiteral::CODE]) {
            $this->warnings[TLD::CODE] = new TLD();
        }
    }
}


1			<?php
2
3			namespace Egulias\EmailValidator\Parser;
4
5			use Egulias\EmailValidator\EmailLexer;
6			use Egulias\EmailValidator\Exception\CharNotAllowed;
7			use Egulias\EmailValidator\Exception\CommaInDomain;
8			use Egulias\EmailValidator\Exception\ConsecutiveAt;
9			use Egulias\EmailValidator\Exception\CRLFAtTheEnd;
10			use Egulias\EmailValidator\Exception\CRNoLF;
11			use Egulias\EmailValidator\Exception\DomainHyphened;
12			use Egulias\EmailValidator\Exception\DotAtEnd;
13			use Egulias\EmailValidator\Exception\DotAtStart;
14			use Egulias\EmailValidator\Exception\ExpectingATEXT;
15			use Egulias\EmailValidator\Exception\ExpectingDomainLiteralClose;
16			use Egulias\EmailValidator\Exception\ExpectingDTEXT;
17			use Egulias\EmailValidator\Exception\NoDomainPart;
18			use Egulias\EmailValidator\Exception\UnopenedComment;
19			use Egulias\EmailValidator\Warning\AddressLiteral;
20			use Egulias\EmailValidator\Warning\CFWSWithFWS;
21			use Egulias\EmailValidator\Warning\DeprecatedComment;
22			use Egulias\EmailValidator\Warning\DomainLiteral;
23			use Egulias\EmailValidator\Warning\DomainTooLong;
24			use Egulias\EmailValidator\Warning\IPV6BadChar;
25			use Egulias\EmailValidator\Warning\IPV6ColonEnd;
26			use Egulias\EmailValidator\Warning\IPV6ColonStart;
27			use Egulias\EmailValidator\Warning\IPV6Deprecated;
28			use Egulias\EmailValidator\Warning\IPV6DoubleColon;
29			use Egulias\EmailValidator\Warning\IPV6GroupCount;
30			use Egulias\EmailValidator\Warning\IPV6MaxGroups;
31			use Egulias\EmailValidator\Warning\LabelTooLong;
32			use Egulias\EmailValidator\Warning\ObsoleteDTEXT;
33			use Egulias\EmailValidator\Warning\TLD;
34
35			class DomainPart extends Parser
36			{
37			const DOMAIN_MAX_LENGTH = 254;
38			const LABEL_MAX_LENGTH = 63;
39
40			/**
41			* @var string
42			*/
43			protected $domainPart = '';
44
45	101		public function parse($domainPart)
46			{
47	101		$this->lexer->moveNext();
48
49	101		$this->performDomainStartChecks();
50
51	91		$domain = $this->doParseDomainPart();
52
53	60		$prev = $this->lexer->getPrevious();
54	60		$length = strlen($domain);
55
56	60		if ($prev['type'] === EmailLexer::S_DOT) {
57	2		throw new DotAtEnd();
58			}
59	58		if ($prev['type'] === EmailLexer::S_HYPHEN) {
60	1		throw new DomainHyphened();
61			}
62	57		if ($length > self::DOMAIN_MAX_LENGTH) {
63	2		$this->warnings[DomainTooLong::CODE] = new DomainTooLong();
64	2		}
65	57		if ($prev['type'] === EmailLexer::S_CR) {
66			throw new CRLFAtTheEnd();
67			}
68	57		$this->domainPart = $domain;
69	57		}
70
71	101		private function performDomainStartChecks()
72			{
73	101		$this->checkInvalidTokensAfterAT();
74	100		$this->checkEmptyDomain();
75
76	93		if ($this->lexer->token['type'] === EmailLexer::S_OPENPARENTHESIS) {
77	3		$this->warnings[DeprecatedComment::CODE] = new DeprecatedComment();
78	3		$this->parseDomainComments();
79	1		}
80	91		}
81
82	100		private function checkEmptyDomain()
83			{
84	100		$thereIsNoDomain = $this->lexer->token['type'] === EmailLexer::S_EMPTY \|\|
85	94		($this->lexer->token['type'] === EmailLexer::S_SP &&
86	100		!$this->lexer->isNextToken(EmailLexer::GENERIC));
87
88	100		if ($thereIsNoDomain) {
89	7		throw new NoDomainPart();
90			}
91	93		}
92
93	101		private function checkInvalidTokensAfterAT()
94			{
95	101		if ($this->lexer->token['type'] === EmailLexer::S_DOT) {
96	1		throw new DotAtStart();
97			}
98	100		if ($this->lexer->token['type'] === EmailLexer::S_HYPHEN) {
99			throw new DomainHyphened();
100			}
101	100		}
102
103			/**
104			* @return string
105			*/
106	57		public function getDomainPart()
107			{
108	57		return $this->domainPart;
109			}
110
111			/**
112			* @param string $addressLiteral
113			* @param int $maxGroups
114			*/
115	7		public function checkIPV6Tag($addressLiteral, $maxGroups = 8)
116			{
117	7		$prev = $this->lexer->getPrevious();
118	7		if ($prev['type'] === EmailLexer::S_COLON) {
119	1		$this->warnings[IPV6ColonEnd::CODE] = new IPV6ColonEnd();
120	1		}
121
122	7		$IPv6 = substr($addressLiteral, 5);
123			//Daniel Marschall's new IPv6 testing strategy
124	7		$matchesIP = explode(':', $IPv6);
125	7		$groupCount = count($matchesIP);
126	7		$colons = strpos($IPv6, '::');
127
128	7		if (count(preg_grep('/^[0-9A-Fa-f]{0,4}$/', $matchesIP, PREG_GREP_INVERT)) !== 0) {
129	1		$this->warnings[IPV6BadChar::CODE] = new IPV6BadChar();
130	1		}
131
132	7		if ($colons === false) {
133			// We need exactly the right number of groups
134	4		if ($groupCount !== $maxGroups) {
135	1		$this->warnings[IPV6GroupCount::CODE] = new IPV6GroupCount();
136	1		}
137	4		return;
138			}
139
140	3		if ($colons !== strrpos($IPv6, '::')) {
141	1		$this->warnings[IPV6DoubleColon::CODE] = new IPV6DoubleColon();
142	1		return;
143			}
144
145	2		if ($colons === 0 \|\| $colons === (strlen($IPv6) - 2)) {
146			// RFC 4291 allows :: at the start or end of an address
147			//with 7 other groups in addition
148	2		++$maxGroups;
149	2		}
150
151	2		if ($groupCount > $maxGroups) {
152	1		$this->warnings[IPV6MaxGroups::CODE] = new IPV6MaxGroups();
153	2		} elseif ($groupCount === $maxGroups) {
154	1		$this->warnings[IPV6Deprecated::CODE] = new IPV6Deprecated();
155	1		}
156	2		}
157
158			/**
159			* @return string
160			*/
161	91		protected function doParseDomainPart()
162			{
163	91		$domain = '';
164	91		$label = '';
165	91		$openedParenthesis = 0;
166			do {
167	91		$prev = $this->lexer->getPrevious();
168
169	91		$this->checkNotAllowedChars($this->lexer->token);
170
171	91		if ($this->lexer->token['type'] === EmailLexer::S_OPENPARENTHESIS) {
172	3		$this->parseComments();
173	3		$openedParenthesis += $this->getOpenedParenthesis();
174	3		$this->lexer->moveNext();
175	3		$tmpPrev = $this->lexer->getPrevious();
176	3		if ($tmpPrev['type'] === EmailLexer::S_CLOSEPARENTHESIS) {
177	3		$openedParenthesis--;
178	3		}
179	3		}
180	91	View Code Duplication	if ($this->lexer->token['type'] === EmailLexer::S_CLOSEPARENTHESIS) {
			0 ignored issues – show Duplication introduced 2016-04-28 23:00 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...
181	3		if ($openedParenthesis === 0) {
182	3		throw new UnopenedComment();
183			} else {
184			$openedParenthesis--;
185			}
186			}
187
188	90		$this->checkConsecutiveDots();
189	90		$this->checkDomainPartExceptions($prev);
190
191	89		if ($this->hasBrackets()) {
192	13		$this->parseDomainLiteral();
193	11		}
194
195	87		if ($this->lexer->token['type'] === EmailLexer::S_DOT) {
196	48		$this->checkLabelLength($label);
197	48		$label = '';
198	48		} else {
199	87		$label .= $this->lexer->token['value'];
200			}
201
202	87		if ($this->isFWS()) {
203	3		$this->parseFWS();
204	2		}
205
206	87		$domain .= $this->lexer->token['value'];
207	87		$this->lexer->moveNext();
208	87		if ($this->lexer->token['type'] === EmailLexer::S_SP) {
209	8		throw new CharNotAllowed();
210			}
211	87		} while (null !== $this->lexer->token['type']);
212
213	60		$this->checkLabelLength($label);
214
215	60		return $domain;
216			}
217
218	91		private function checkNotAllowedChars(array $token)
219			{
220	91		$notAllowed = [EmailLexer::S_BACKSLASH => true, EmailLexer::S_SLASH=> true];
221	91		if (isset($notAllowed[$token['type']])) {
222	3		throw new CharNotAllowed();
223			}
224	91		}
225
226			/**
227			* @return string\|false
228			*/
229	13		protected function parseDomainLiteral()
230			{
231	13		if ($this->lexer->isNextToken(EmailLexer::S_COLON)) {
232			$this->warnings[IPV6ColonStart::CODE] = new IPV6ColonStart();
233			}
234	13		if ($this->lexer->isNextToken(EmailLexer::S_IPV6TAG)) {
235	7		$lexer = clone $this->lexer;
236	7		$lexer->moveNext();
237	7		if ($lexer->isNextToken(EmailLexer::S_DOUBLECOLON)) {
238	1		$this->warnings[IPV6ColonStart::CODE] = new IPV6ColonStart();
239	1		}
240	7		}
241
242	13		return $this->doParseDomainLiteral();
243			}
244
245			/**
246			* @return string\|false
247			*/
248	13		protected function doParseDomainLiteral()
249			{
250	13		$IPv6TAG = false;
251	13		$addressLiteral = '';
252			do {
253	13		if ($this->lexer->token['type'] === EmailLexer::C_NUL) {
254			throw new ExpectingDTEXT();
255			}
256
257	13		if ($this->lexer->token['type'] === EmailLexer::INVALID \|\|
258	13		$this->lexer->token['type'] === EmailLexer::C_DEL \|\|
259	13		$this->lexer->token['type'] === EmailLexer::S_LF
260	13		) {
261	1		$this->warnings[ObsoleteDTEXT::CODE] = new ObsoleteDTEXT();
262	1		}
263
264	13		if ($this->lexer->isNextTokenAny(array(EmailLexer::S_OPENQBRACKET, EmailLexer::S_OPENBRACKET))) {
265	1		throw new ExpectingDTEXT();
266			}
267
268	12		if ($this->lexer->isNextTokenAny(
269	12		array(EmailLexer::S_HTAB, EmailLexer::S_SP, $this->lexer->token['type'] === EmailLexer::CRLF)
270	12		)) {
271			$this->warnings[CFWSWithFWS::CODE] = new CFWSWithFWS();
272			$this->parseFWS();
273			}
274
275	12		if ($this->lexer->isNextToken(EmailLexer::S_CR)) {
276	1		throw new CRNoLF();
277			}
278
279	11		if ($this->lexer->token['type'] === EmailLexer::S_BACKSLASH) {
280			$this->warnings[ObsoleteDTEXT::CODE] = new ObsoleteDTEXT();
281			$addressLiteral .= $this->lexer->token['value'];
282			$this->lexer->moveNext();
283			$this->validateQuotedPair();
284			}
285	11		if ($this->lexer->token['type'] === EmailLexer::S_IPV6TAG) {
286	7		$IPv6TAG = true;
287	7		}
288	11		if ($this->lexer->token['type'] === EmailLexer::S_CLOSEQBRACKET) {
289			break;
290			}
291
292	11		$addressLiteral .= $this->lexer->token['value'];
293
294	11		} while ($this->lexer->moveNext());
295
296	11		$addressLiteral = str_replace('[', '', $addressLiteral);
297	11		$addressLiteral = $this->checkIPV4Tag($addressLiteral);
298
299	11		if (false === $addressLiteral) {
300	1		return $addressLiteral;
301			}
302
303	10		if (!$IPv6TAG) {
304	3		$this->warnings[DomainLiteral::CODE] = new DomainLiteral();
305	3		return $addressLiteral;
306			}
307
308	7		$this->warnings[AddressLiteral::CODE] = new AddressLiteral();
309
310	7		$this->checkIPV6Tag($addressLiteral);
311
312	7		return $addressLiteral;
313			}
314
315			/**
316			* @param string $addressLiteral
317			*
318			* @return string\|false
319			*/
320	11		protected function checkIPV4Tag($addressLiteral)
321			{
322	11		$matchesIP = array();
323
324			// Extract IPv4 part from the end of the address-literal (if there is one)
325	11		if (preg_match(
326	11		'/\\b(?:(?:25[0-5]\|2[0-4][0-9]\|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]\|2[0-4][0-9]\|[01]?[0-9][0-9]?)$/',
327	11		$addressLiteral,
328			$matchesIP
329	11		) > 0
330	11		) {
331	2		$index = strrpos($addressLiteral, $matchesIP[0]);
332	2		if ($index === 0) {
333	1		$this->warnings[AddressLiteral::CODE] = new AddressLiteral();
334	1		return false;
335			}
336			// Convert IPv4 part to IPv6 format for further testing
337	1		$addressLiteral = substr($addressLiteral, 0, (int) $index) . '0:0';
338	1		}
339
340	10		return $addressLiteral;
341			}
342
343	90		protected function checkDomainPartExceptions(array $prev)
344			{
345			$invalidDomainTokens = array(
346	90		EmailLexer::S_DQUOTE => true,
347	90		EmailLexer::S_SQUOTE => true,
348	90		EmailLexer::S_BACKTICK => true,
349	90		EmailLexer::S_SEMICOLON => true,
350	90		EmailLexer::S_GREATERTHAN => true,
351	90		EmailLexer::S_LOWERTHAN => true,
352	90		);
353
354	90		if (isset($invalidDomainTokens[$this->lexer->token['type']])) {
355	7		throw new ExpectingATEXT();
356			}
357
358	90		if ($this->lexer->token['type'] === EmailLexer::S_COMMA) {
359	1		throw new CommaInDomain();
360			}
361
362	90		if ($this->lexer->token['type'] === EmailLexer::S_AT) {
363	2		throw new ConsecutiveAt();
364			}
365
366	89	View Code Duplication	if ($this->lexer->token['type'] === EmailLexer::S_OPENQBRACKET && $prev['type'] !== EmailLexer::S_AT) {
			0 ignored issues – show Duplication introduced 2020-08-23 14:09 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
367	1		throw new ExpectingATEXT();
368			}
369
370	89	View Code Duplication	if ($this->lexer->token['type'] === EmailLexer::S_HYPHEN && $this->lexer->isNextToken(EmailLexer::S_DOT)) {
			0 ignored issues – show Duplication introduced 2016-05-07 13:54 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
371	1		throw new DomainHyphened();
372			}
373
374	89	View Code Duplication	if ($this->lexer->token['type'] === EmailLexer::S_BACKSLASH
			0 ignored issues – show Duplication introduced 2016-05-07 13:54 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...
375	89		&& $this->lexer->isNextToken(EmailLexer::GENERIC)) {
376			throw new ExpectingATEXT();
377			}
378	89		}
379
380			/**
381			* @return bool
382			*/
383	89		protected function hasBrackets()
384			{
385	89		if ($this->lexer->token['type'] !== EmailLexer::S_OPENBRACKET) {
386	76		return false;
387			}
388
389			try {
390	13		$this->lexer->find(EmailLexer::S_CLOSEBRACKET);
391	13		} catch (\RuntimeException $e) {
392			throw new ExpectingDomainLiteralClose();
393			}
394
395	13		return true;
396			}
397
398			/**
399			* @param string $label
400			*/
401	70		protected function checkLabelLength($label)
402			{
403	70		if ($this->isLabelTooLong($label)) {
404	6		$this->warnings[LabelTooLong::CODE] = new LabelTooLong();
405	6		}
406	70		}
407
408			/**
409			* @param string $label
410			* @return bool
411			*/
412	70		private function isLabelTooLong($label)
413			{
414	70		if (preg_match('/[^\x00-\x7F]/', $label)) {
415	5		idn_to_ascii($label, IDNA_DEFAULT, INTL_IDNA_VARIANT_UTS46, $idnaInfo);
			0 ignored issues – show Bug introduced 2020-12-08 07:35 UTC by Report Bug Copy Issue Report The variable `$idnaInfo` does not exist. Did you forget to declare it? This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug. Loading history...
416
417	5		return (bool) ($idnaInfo['errors'] & IDNA_ERROR_LABEL_TOO_LONG);
418			}
419
420	68		return strlen($label) > self::LABEL_MAX_LENGTH;
421			}
422
423	3		protected function parseDomainComments()
424			{
425	3		$this->isUnclosedComment();
426	1		while (!$this->lexer->isNextToken(EmailLexer::S_CLOSEPARENTHESIS)) {
427	1		$this->warnEscaping();
428	1		$this->lexer->moveNext();
429	1		}
430
431	1		$this->lexer->moveNext();
432	1		if ($this->lexer->isNextToken(EmailLexer::S_DOT)) {
433			throw new ExpectingATEXT();
434			}
435	1		}
436
437			protected function addTLDWarnings()
438			{
439			if ($this->warnings[DomainLiteral::CODE]) {
440			$this->warnings[TLD::CODE] = new TLD();
441			}
442			}
443			}
444

egulias / EmailValidator

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DomainPart::isLabelTooLong() A

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