EmailValidator::getThreshold() - Code Metrics - Inspection of "Added EmailValidatorInterface (#120)" - egulias/EmailValidator - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — 1.2 ( cbfe3e...b8bb14 )

by Eduardo Gulias

created 2016-07-03 21:52 UTC

EmailValidator::getThreshold() A

↳ Parent: EmailValidator

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes	2
Bugs	1	Features	0

Metric	Value
c	2
b	1
f	0
dl	0
loc	4
ccs	0
cts	2
cp	0
rs	10
cc	1
eloc	2
nc	1
nop	0
crap	2

<?php

namespace Egulias\EmailValidator;

/**
 * EmailValidator
 *
 * @author Eduardo Gulias Davis <[email protected]>
 */
class EmailValidator implements EmailValidatorInterface
{
    /**
     * Critical validation errors used to indicate that
     * an email address is invalid:
     */
    const ERR_CONSECUTIVEATS     = 128;
    const ERR_EXPECTING_DTEXT    = 129;
    const ERR_NOLOCALPART        = 130;
    const ERR_NODOMAIN           = 131;
    const ERR_CONSECUTIVEDOTS    = 132;
    const ERR_ATEXT_AFTER_CFWS   = 133;
    const ERR_EXPECTING_QPAIR    = 136;
    const ERR_EXPECTING_ATEXT    = 137;
    const ERR_EXPECTING_CTEXT    = 139;
    const ERR_DOT_START          = 141;
    const ERR_DOT_END            = 142;
    const ERR_DOMAINHYPHENEND    = 144;
    const ERR_UNCLOSEDQUOTEDSTR  = 145;
    const ERR_UNCLOSEDCOMMENT    = 146;
    const ERR_FWS_CRLF_X2        = 148;
    const ERR_FWS_CRLF_END       = 149;
    const ERR_CR_NO_LF           = 150;
    const ERR_DEPREC_REACHED     = 151;
    const ERR_UNOPENEDCOMMENT    = 152;
    const ERR_ATEXT_AFTER_QS     = 134; // not in use
    const ERR_ATEXT_AFTER_DOMLIT = 135; // not in use
    const ERR_EXPECTING_QTEXT    = 138; // not in use
    const ERR_BACKSLASHEND       = 140; // not in use
    const ERR_DOMAINHYPHENSTART  = 143; // not in use
    const ERR_UNCLOSEDDOMLIT     = 147; // not in use

    /**
     * Informational validation warnings regarding unusual or
     * deprecated features found in an email address:
     */
    // Address is valid for SMTP (RFC-5321), but has unusual elements.
    const RFC5321_TLD             = 9;
    const RFC5321_QUOTEDSTRING    = 11;
    const RFC5321_ADDRESSLITERAL  = 12;
    const RFC5321_IPV6DEPRECATED  = 13;
    const RFC5321_TLDNUMERIC      = 10; // not in use
    // Address is only valid according to the broad
    // definition of RFC-5322. It is otherwise invalid.
    const RFC5322_LOCAL_TOOLONG   = 64;
    const RFC5322_LABEL_TOOLONG   = 63;
    const RFC5322_TOOLONG         = 66;
    const RFC5322_DOMAIN_TOOLONG  = 255;
    const RFC5322_DOMAINLITERAL   = 70;
    const RFC5322_DOMLIT_OBSDTEXT = 71;
    const RFC5322_IPV6_GRPCOUNT   = 72;
    const RFC5322_IPV6_2X2XCOLON  = 73;
    const RFC5322_IPV6_BADCHAR    = 74;
    const RFC5322_IPV6_MAXGRPS    = 75;
    const RFC5322_IPV6_COLONSTRT  = 76;
    const RFC5322_IPV6_COLONEND   = 77;
    const RFC5322_DOMAIN          = 65; // not in use
    // Address contains deprecated elements, but may
    // still be valid in restricted contexts.
    const DEPREC_QP               = 36;
    const DEPREC_COMMENT          = 37;
    const DEPREC_CFWS_NEAR_AT     = 49;
    const DEPREC_LOCALPART        = 33; // not in use
    const DEPREC_FWS              = 34; // not in use
    const DEPREC_QTEXT            = 35; // not in use
    const DEPREC_CTEXT            = 38; // not in use
    // Address is valid within the message,
    // but cannot be used unmodified in the envelope.
    const CFWS_COMMENT            = 17;
    const CFWS_FWS                = 18;
    // Hostname DNS checks were unsuccessful.
    const DNSWARN_NO_MX_RECORD    = 5;
    const DNSWARN_NO_RECORD       = 6;

    /**
     * @var EmailParser
     */
    protected $parser;

    /**
     * Contains any informational warnings regarding unusual/deprecated
     * features that were encountered during validation.
     *
     * @var array
     */
    protected $warnings = array();

    /**
     * If a critical validation problem is encountered, this will be
     * set to the value of one of this class's ERR_* constants.
     *
     * @var int
     */
    protected $error;

    /**
     * @var int
     */
    protected $threshold = 255;

    public function __construct()
    {
        $this->parser = new EmailParser(new EmailLexer());
    }

    /**
     * {@inheritdoc}
     */
    public function isValid($email, $checkDNS = false, $strict = false)
    {
        try {
            $this->parser->parse((string)$email);
            $this->warnings = $this->parser->getWarnings();
        } catch (\Exception $e) {
            $rClass = new \ReflectionClass($this);
            $this->error = $rClass->getConstant($e->getMessage());
            return false;
        }

        $dnsProblemExists = ($checkDNS ? !$this->checkDNS() : false);

        if ($this->hasWarnings() && ((int) max($this->warnings) > $this->threshold)) {
            $this->error = self::ERR_DEPREC_REACHED;
            return false;
        }

        return ($strict ? (!$this->hasWarnings() && !$dnsProblemExists) : true);
    }

    /**
     * {@inheritdoc}
     */
    public function hasWarnings()
    {
        return !empty($this->warnings);
    }

    /**
     * {@inheritdoc}
     */
    public function getWarnings()
    {
        return $this->warnings;
    }

    /**
     * {@inheritdoc}
     */
    public function getError()
    {
        return $this->error;
    }

    /**
     * {@inheritdoc}
     */
    public function setThreshold($threshold)
    {
        $this->threshold = (int) $threshold;

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function getThreshold()
    {
        return $this->threshold;
    }

    /**
     * @return bool Whether or not an MX record exists for the
     *              email address's host name.
     */
    protected function checkDNS()
    {
        $mxRecordExists = checkdnsrr(trim($this->parser->getParsedDomainPart()), 'MX');

        if (!$mxRecordExists) {
            $this->warnings[] = self::DNSWARN_NO_RECORD;
            $this->addTLDWarnings();
        }

        return $mxRecordExists;
    }

    protected function addTLDWarnings()
    {
        if (!in_array(self::DNSWARN_NO_RECORD, $this->warnings) &&
            !in_array(self::DNSWARN_NO_MX_RECORD, $this->warnings) &&
            in_array(self::RFC5322_DOMAINLITERAL, $this->warnings)
        ) {
            $this->warnings[] = self::RFC5321_TLD;
        }
    }
}


1		<?php
2
3		namespace Egulias\EmailValidator;
4
5		/**
6		* EmailValidator
7		*
8		* @author Eduardo Gulias Davis <[email protected]>
9		*/
10		class EmailValidator implements EmailValidatorInterface
11		{
12		/**
13		* Critical validation errors used to indicate that
14		* an email address is invalid:
15		*/
16		const ERR_CONSECUTIVEATS = 128;
17		const ERR_EXPECTING_DTEXT = 129;
18		const ERR_NOLOCALPART = 130;
19		const ERR_NODOMAIN = 131;
20		const ERR_CONSECUTIVEDOTS = 132;
21		const ERR_ATEXT_AFTER_CFWS = 133;
22		const ERR_EXPECTING_QPAIR = 136;
23		const ERR_EXPECTING_ATEXT = 137;
24		const ERR_EXPECTING_CTEXT = 139;
25		const ERR_DOT_START = 141;
26		const ERR_DOT_END = 142;
27		const ERR_DOMAINHYPHENEND = 144;
28		const ERR_UNCLOSEDQUOTEDSTR = 145;
29		const ERR_UNCLOSEDCOMMENT = 146;
30		const ERR_FWS_CRLF_X2 = 148;
31		const ERR_FWS_CRLF_END = 149;
32		const ERR_CR_NO_LF = 150;
33		const ERR_DEPREC_REACHED = 151;
34		const ERR_UNOPENEDCOMMENT = 152;
35		const ERR_ATEXT_AFTER_QS = 134; // not in use
36		const ERR_ATEXT_AFTER_DOMLIT = 135; // not in use
37		const ERR_EXPECTING_QTEXT = 138; // not in use
38		const ERR_BACKSLASHEND = 140; // not in use
39		const ERR_DOMAINHYPHENSTART = 143; // not in use
40		const ERR_UNCLOSEDDOMLIT = 147; // not in use
41
42		/**
43		* Informational validation warnings regarding unusual or
44		* deprecated features found in an email address:
45		*/
46		// Address is valid for SMTP (RFC-5321), but has unusual elements.
47		const RFC5321_TLD = 9;
48		const RFC5321_QUOTEDSTRING = 11;
49		const RFC5321_ADDRESSLITERAL = 12;
50		const RFC5321_IPV6DEPRECATED = 13;
51		const RFC5321_TLDNUMERIC = 10; // not in use
52		// Address is only valid according to the broad
53		// definition of RFC-5322. It is otherwise invalid.
54		const RFC5322_LOCAL_TOOLONG = 64;
55		const RFC5322_LABEL_TOOLONG = 63;
56		const RFC5322_TOOLONG = 66;
57		const RFC5322_DOMAIN_TOOLONG = 255;
58		const RFC5322_DOMAINLITERAL = 70;
59		const RFC5322_DOMLIT_OBSDTEXT = 71;
60		const RFC5322_IPV6_GRPCOUNT = 72;
61		const RFC5322_IPV6_2X2XCOLON = 73;
62		const RFC5322_IPV6_BADCHAR = 74;
63		const RFC5322_IPV6_MAXGRPS = 75;
64		const RFC5322_IPV6_COLONSTRT = 76;
65		const RFC5322_IPV6_COLONEND = 77;
66		const RFC5322_DOMAIN = 65; // not in use
67		// Address contains deprecated elements, but may
68		// still be valid in restricted contexts.
69		const DEPREC_QP = 36;
70		const DEPREC_COMMENT = 37;
71		const DEPREC_CFWS_NEAR_AT = 49;
72		const DEPREC_LOCALPART = 33; // not in use
73		const DEPREC_FWS = 34; // not in use
74		const DEPREC_QTEXT = 35; // not in use
75		const DEPREC_CTEXT = 38; // not in use
76		// Address is valid within the message,
77		// but cannot be used unmodified in the envelope.
78		const CFWS_COMMENT = 17;
79		const CFWS_FWS = 18;
80		// Hostname DNS checks were unsuccessful.
81		const DNSWARN_NO_MX_RECORD = 5;
82		const DNSWARN_NO_RECORD = 6;
83
84		/**
85		* @var EmailParser
86		*/
87		protected $parser;
88
89		/**
90		* Contains any informational warnings regarding unusual/deprecated
91		* features that were encountered during validation.
92		*
93		* @var array
94		*/
95		protected $warnings = array();
96
97		/**
98		* If a critical validation problem is encountered, this will be
99		* set to the value of one of this class's ERR_* constants.
100		*
101		* @var int
102		*/
103		protected $error;
104
105		/**
106		* @var int
107		*/
108		protected $threshold = 255;
109
110	151	public function __construct()
111		{
112	151	$this->parser = new EmailParser(new EmailLexer());
113	151	}
114
115		/**
116		* {@inheritdoc}
117		*/
118	151	public function isValid($email, $checkDNS = false, $strict = false)
119		{
120		try {
121	151	$this->parser->parse((string)$email);
122	75	$this->warnings = $this->parser->getWarnings();
123	151	} catch (\Exception $e) {
124	76	$rClass = new \ReflectionClass($this);
125	76	$this->error = $rClass->getConstant($e->getMessage());
126	76	return false;
127		}
128
129	75	$dnsProblemExists = ($checkDNS ? !$this->checkDNS() : false);
130
131	75	if ($this->hasWarnings() && ((int) max($this->warnings) > $this->threshold)) {
132		$this->error = self::ERR_DEPREC_REACHED;
133		return false;
134		}
135
136	75	return ($strict ? (!$this->hasWarnings() && !$dnsProblemExists) : true);
137		}
138
139		/**
140		* {@inheritdoc}
141		*/
142	75	public function hasWarnings()
143		{
144	75	return !empty($this->warnings);
145		}
146
147		/**
148		* {@inheritdoc}
149		*/
150	46	public function getWarnings()
151		{
152	46	return $this->warnings;
153		}
154
155		/**
156		* {@inheritdoc}
157		*/
158	26	public function getError()
159		{
160	26	return $this->error;
161		}
162
163		/**
164		* {@inheritdoc}
165		*/
166		public function setThreshold($threshold)
167		{
168		$this->threshold = (int) $threshold;
169
170		return $this;
171		}
172
173		/**
174		* {@inheritdoc}
175		*/
176		public function getThreshold()
177		{
178		return $this->threshold;
179		}
180
181		/**
182		* @return bool Whether or not an MX record exists for the
183		* email address's host name.
184		*/
185	46	protected function checkDNS()
186		{
187	46	$mxRecordExists = checkdnsrr(trim($this->parser->getParsedDomainPart()), 'MX');
188
189	46	if (!$mxRecordExists) {
190	46	$this->warnings[] = self::DNSWARN_NO_RECORD;
191	46	$this->addTLDWarnings();
192	46	}
193
194	46	return $mxRecordExists;
195		}
196
197	46	protected function addTLDWarnings()
198		{
199	46	if (!in_array(self::DNSWARN_NO_RECORD, $this->warnings) &&
200	46	!in_array(self::DNSWARN_NO_MX_RECORD, $this->warnings) &&
201		in_array(self::RFC5322_DOMAINLITERAL, $this->warnings)
202	46	) {
203		$this->warnings[] = self::RFC5321_TLD;
204		}
205	46	}
206		}
207

egulias / EmailValidator

Push — 1.2 ( cbfe3e...b8bb14 )

EmailValidator::getThreshold() A

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