UriPattern::buildPatterns() - Code Metrics - Riimu/Kit-UrlParser - Measure and Improve Code Quality continuously with Scrutinizer

UriPattern::buildPatterns() A
last analyzed 2022-12-13 18:53 UTC

↳ Parent: UriPattern

Complexity

Conditions	1
Paths	1

Size

Total Lines	65
Code Lines	46

Duplication

Lines	0
Ratio	0 %

Importance

Changes	3
Bugs	0	Features	0

Metric	Value
cc	1
eloc	46
c	3
b	0
f	0
nc	1
nop	0
dl	0
loc	65
rs	9.1781

How to fix Long Method

<?php

namespace Riimu\Kit\UrlParser;

/**
 * Provides PCRE based matching for URIs.
 * @author Riikka Kalliomäki <[email protected]>
 * @copyright Copyright (c) 2015-2017 Riikka Kalliomäki
 * @license http://opensource.org/licenses/mit-license.php MIT License
 */
class UriPattern
{
    /** @var string PCRE pattern that conforms to the URI ABNF */
    private static $absoluteUri;

    /** @var string PCRE pattern that conforms to the relative-ref ABNF */
    private static $relativeUri;

    /** @var string PCRE pattern that conforms to the scheme ABNF */
    private static $scheme;

    /** @var string PCRE pattern that conforms to the host ABNF */
    private static $host;

    /** @var bool Whether non ascii characters are allowed or not */
    private $allowNonAscii;

    /**
     * Creates a new instance of UriPattern.
     */
    public function __construct()
    {
        $this->allowNonAscii = false;

        if (!isset(self::$absoluteUri)) {
            $this->buildPatterns();
        }
    }

    /**
     * Allows or forbids non ascii characters in some parts of the URI.
     *
     * When enabled, non ascii characters are allowed in `userinfo`, `reg_name`,
     * `path`, `query` and `fragment` parts of the URI. Note that pattern does
     * not verify whether the bytes actually form valid UTF-8 sequences or not.
     * Enabling this option simply allows bytes within the range of `x80-xFF`.
     *
     * @param bool $enabled True to allow, false to forbid
     */
    public function allowNonAscii($enabled = true)
    {
        $this->allowNonAscii = (bool) $enabled;
    }

    /**
     * Matches the string against URI or relative-ref ABNF.
     * @param string $uri The string to match
     * @param array $matches Provides the matched sub sections from the match
     * @return bool True if the URI matches, false if not
     */
    public function matchUri($uri, &$matches = [])
    {
        if ($this->matchAbsoluteUri($uri, $matches)) {
            return true;
        }

        return $this->matchRelativeUri($uri, $matches);
    }

    /**
     * Matches the string against the URI ABNF.
     * @param string $uri The string to match
     * @param array $matches Provides the matched sub sections from the match
     * @return bool True if the URI matches, false if not
     */
    public function matchAbsoluteUri($uri, &$matches = [])
    {
        return $this->match(self::$absoluteUri, $uri, $matches);
    }

    /**
     * Matches the string against the relative-ref ABNF.
     * @param string $uri The string to match
     * @param array $matches Provides the matched sub sections from the match
     * @return bool True if the URI matches, false if not
     */
    public function matchRelativeUri($uri, &$matches = [])
    {
        return $this->match(self::$relativeUri, $uri, $matches);
    }

    /**
     * Matches the string against the scheme ABNF.
     * @param string $scheme The string to match
     * @param array $matches Provides the matched sub sections from the match
     * @return bool True if the scheme matches, false if not
     */
    public function matchScheme($scheme, &$matches = [])
    {
        return $this->match(self::$scheme, $scheme, $matches);
    }

    /**
     * Matches the string against the host ABNF.
     * @param string $host The string to match
     * @param array $matches Provides the matched sub sections from the match
     * @return bool True if the host matches, false if not
     */
    public function matchHost($host, &$matches = [])
    {
        return $this->match(self::$host, $host, $matches);
    }

    /**
     * Matches the subject against the pattern and provides the literal sub patterns.
     * @param string $pattern The pattern to use for matching
     * @param string $subject The subject to match
     * @param array $matches The provided list of literal sub patterns
     * @return bool True if the pattern matches, false if not
     */
    private function match($pattern, $subject, &$matches)
    {
        $matches = [];
        $subject = (string) $subject;

        if ($this->allowNonAscii || preg_match('/^[\\x00-\\x7F]*$/', $subject)) {
            if (preg_match($pattern, $subject, $match)) {
                $matches = $this->getNamedPatterns($match);

                return true;
            }
        }

        return false;
    }

    /**
     * Returns nonempty named sub patterns from the match set.
     * @param array $matches Sub pattern matches
     * @return array<string,string> Nonempty named sub pattern matches
     */
    private function getNamedPatterns($matches)
    {
        foreach ($matches as $key => $value) {
            if (!is_string($key) || strlen($value) < 1) {
                unset($matches[$key]);
            }
        }

        return $matches;
    }

    /**
     * Builds the PCRE patterns according to the ABNF definitions.
     */
    private static function buildPatterns()
    {
        $alpha = 'A-Za-z';
        $digit = '0-9';
        $hex = $digit . 'A-Fa-f';
        $unreserved = "$alpha$digit\\-._~";
        $delimiters = "!$&'()*+,;=";
        $utf8 = '\\x80-\\xFF';

        $octet = "(?:[$digit]|[1-9][$digit]|1[$digit]{2}|2[0-4]$digit|25[0-5])";
        $ipv4address = "(?>$octet\\.$octet\\.$octet\\.$octet)";

        $encoded = "%[$hex]{2}";
        $h16 = "[$hex]{1,4}";
        $ls32 = "(?:$h16:$h16|$ipv4address)";

        $data = "[$unreserved$delimiters:@$utf8]++|$encoded";

        // Defining the scheme
        $scheme = "(?'scheme'(?>[$alpha][$alpha$digit+\\-.]*+))";

        // Defining the authority
        $ipv6address = "(?'IPv6address'" .
            "(?:(?:$h16:){6}$ls32)|" .
            "(?:::(?:$h16:){5}$ls32)|" .
            "(?:(?:$h16)?::(?:$h16:){4}$ls32)|" .
            "(?:(?:(?:$h16:){0,1}$h16)?::(?:$h16:){3}$ls32)|" .
            "(?:(?:(?:$h16:){0,2}$h16)?::(?:$h16:){2}$ls32)|" .
            "(?:(?:(?:$h16:){0,3}$h16)?::$h16:$ls32)|" .
            "(?:(?:(?:$h16:){0,4}$h16)?::$ls32)|" .
            "(?:(?:(?:$h16:){0,5}$h16)?::$h16)|" .
            "(?:(?:(?:$h16:){0,6}$h16)?::))";

        $regularName = "(?'reg_name'(?>(?:[$unreserved$delimiters$utf8]++|$encoded)*))";

        $ipvFuture = "(?'IPvFuture'v[$hex]++\\.[$unreserved$delimiters:]++)";
        $ipLiteral = "(?'IP_literal'\\[(?>$ipv6address|$ipvFuture)\\])";

        $port = "(?'port'(?>[$digit]*+))";
        $host = "(?'host'$ipLiteral|(?'IPv4address'$ipv4address)|$regularName)";
        $userInfo = "(?'userinfo'(?>(?:[$unreserved$delimiters:$utf8]++|$encoded)*))";
        $authority = "(?'authority'(?:$userInfo@)?$host(?::$port)?)";

        // Defining the path
        $segment = "(?>(?:$data)*)";
        $segmentNotEmpty = "(?>(?:$data)+)";
        $segmentNoScheme = "(?>([$unreserved$delimiters@$utf8]++|$encoded)+)";

        $pathAbsoluteEmpty = "(?'path_abempty'(?:/$segment)*)";
        $pathAbsolute = "(?'path_absolute'/(?:$segmentNotEmpty(?:/$segment)*)?)";
        $pathNoScheme = "(?'path_noscheme'$segmentNoScheme(?:/$segment)*)";
        $pathRootless = "(?'path_rootless'$segmentNotEmpty(?:/$segment)*)";
        $pathEmpty = "(?'path_empty')";

        // Defining other parts
        $query = "(?'query'(?>(?:$data|[/?])*))";
        $fragment = "(?'fragment'(?>(?:$data|[/?])*))";

        $absolutePath = "(?'hier_part'//$authority$pathAbsoluteEmpty|$pathAbsolute|$pathRootless|$pathEmpty)";
        $relativePath = "(?'relative_part'//$authority$pathAbsoluteEmpty|$pathAbsolute|$pathNoScheme|$pathEmpty)";

        self::$absoluteUri = "#^$scheme:$absolutePath(?:\\?$query)?(?:\\#$fragment)?$#";
        self::$relativeUri = "#^$relativePath(?:\\?$query)?(?:\\#$fragment)?$#";
        self::$scheme = "#^$scheme$#";
        self::$host = "#^$host$#";
    }
}


1			<?php
2
3			namespace Riimu\Kit\UrlParser;
4
5			/**
6			* Provides PCRE based matching for URIs.
7			* @author Riikka Kalliomäki <[email protected]>
8			* @copyright Copyright (c) 2015-2017 Riikka Kalliomäki
9			* @license http://opensource.org/licenses/mit-license.php MIT License
10			*/
11			class UriPattern
12			{
13			/** @var string PCRE pattern that conforms to the URI ABNF */
14			private static $absoluteUri;
15
16			/** @var string PCRE pattern that conforms to the relative-ref ABNF */
17			private static $relativeUri;
18
19			/** @var string PCRE pattern that conforms to the scheme ABNF */
20			private static $scheme;
21
22			/** @var string PCRE pattern that conforms to the host ABNF */
23			private static $host;
24
25			/** @var bool Whether non ascii characters are allowed or not */
26			private $allowNonAscii;
27
28			/**
29			* Creates a new instance of UriPattern.
30			*/
31			public function __construct()
32			{
33			$this->allowNonAscii = false;
34
35			if (!isset(self::$absoluteUri)) {
36			$this->buildPatterns();
37			}
38			}
39
40			/**
41			* Allows or forbids non ascii characters in some parts of the URI.
42			*
43			* When enabled, non ascii characters are allowed in `userinfo`, `reg_name`,
44			* `path`, `query` and `fragment` parts of the URI. Note that pattern does
45			* not verify whether the bytes actually form valid UTF-8 sequences or not.
46			* Enabling this option simply allows bytes within the range of `x80-xFF`.
47			*
48			* @param bool $enabled True to allow, false to forbid
49			*/
50			public function allowNonAscii($enabled = true)
51			{
52			$this->allowNonAscii = (bool) $enabled;
53			}
54
55			/**
56			* Matches the string against URI or relative-ref ABNF.
57			* @param string $uri The string to match
58			* @param array $matches Provides the matched sub sections from the match
59			* @return bool True if the URI matches, false if not
60			*/
61			public function matchUri($uri, &$matches = [])
62			{
63			if ($this->matchAbsoluteUri($uri, $matches)) {
64			return true;
65			}
66
67			return $this->matchRelativeUri($uri, $matches);
68			}
69
70			/**
71			* Matches the string against the URI ABNF.
72			* @param string $uri The string to match
73			* @param array $matches Provides the matched sub sections from the match
74			* @return bool True if the URI matches, false if not
75			*/
76			public function matchAbsoluteUri($uri, &$matches = [])
77			{
78			return $this->match(self::$absoluteUri, $uri, $matches);
79			}
80
81			/**
82			* Matches the string against the relative-ref ABNF.
83			* @param string $uri The string to match
84			* @param array $matches Provides the matched sub sections from the match
85			* @return bool True if the URI matches, false if not
86			*/
87			public function matchRelativeUri($uri, &$matches = [])
88			{
89			return $this->match(self::$relativeUri, $uri, $matches);
90			}
91
92			/**
93			* Matches the string against the scheme ABNF.
94			* @param string $scheme The string to match
95			* @param array $matches Provides the matched sub sections from the match
96			* @return bool True if the scheme matches, false if not
97			*/
98			public function matchScheme($scheme, &$matches = [])
99			{
100			return $this->match(self::$scheme, $scheme, $matches);
101			}
102
103			/**
104			* Matches the string against the host ABNF.
105			* @param string $host The string to match
106			* @param array $matches Provides the matched sub sections from the match
107			* @return bool True if the host matches, false if not
108			*/
109			public function matchHost($host, &$matches = [])
110			{
111			return $this->match(self::$host, $host, $matches);
112			}
113
114			/**
115			* Matches the subject against the pattern and provides the literal sub patterns.
116			* @param string $pattern The pattern to use for matching
117			* @param string $subject The subject to match
118			* @param array $matches The provided list of literal sub patterns
119			* @return bool True if the pattern matches, false if not
120			*/
121			private function match($pattern, $subject, &$matches)
122			{
123			$matches = [];
124			$subject = (string) $subject;
125
126			if ($this->allowNonAscii \|\| preg_match('/^[\\x00-\\x7F]*$/', $subject)) {
127			if (preg_match($pattern, $subject, $match)) {
128			$matches = $this->getNamedPatterns($match);
129
130			return true;
131			}
132			}
133
134			return false;
135			}
136
137			/**
138			* Returns nonempty named sub patterns from the match set.
139			* @param array $matches Sub pattern matches
140			* @return array<string,string> Nonempty named sub pattern matches
141			*/
142			private function getNamedPatterns($matches)
143			{
144			foreach ($matches as $key => $value) {
145			if (!is_string($key) \|\| strlen($value) < 1) {
146			unset($matches[$key]);
147			}
148			}
149
150			return $matches;
151			}
152
153			/**
154			* Builds the PCRE patterns according to the ABNF definitions.
155			*/
156			private static function buildPatterns()
157			{
158			$alpha = 'A-Za-z';
159			$digit = '0-9';
160			$hex = $digit . 'A-Fa-f';
161			$unreserved = "$alpha$digit\\-._~";
162			$delimiters = "!$&'()*+,;=";
163			$utf8 = '\\x80-\\xFF';
164
165			$octet = "(?:[$digit]\|[1-9][$digit]\|1[$digit]{2}\|2[0-4]$digit\|25[0-5])";
166			$ipv4address = "(?>$octet\\.$octet\\.$octet\\.$octet)";
167
168			$encoded = "%[$hex]{2}";
169			$h16 = "[$hex]{1,4}";
170			$ls32 = "(?:$h16:$h16\|$ipv4address)";
171
172			$data = "[$unreserved$delimiters:@$utf8]++\|$encoded";
173
174			// Defining the scheme
175			$scheme = "(?'scheme'(?>[$alpha][$alpha$digit+\\-.]*+))";
176
177			// Defining the authority
178			$ipv6address = "(?'IPv6address'" .
179			"(?:(?:$h16:){6}$ls32)\|" .
180			"(?:::(?:$h16:){5}$ls32)\|" .
181			"(?:(?:$h16)?::(?:$h16:){4}$ls32)\|" .
182			"(?:(?:(?:$h16:){0,1}$h16)?::(?:$h16:){3}$ls32)\|" .
183			"(?:(?:(?:$h16:){0,2}$h16)?::(?:$h16:){2}$ls32)\|" .
184			"(?:(?:(?:$h16:){0,3}$h16)?::$h16:$ls32)\|" .
185			"(?:(?:(?:$h16:){0,4}$h16)?::$ls32)\|" .
186			"(?:(?:(?:$h16:){0,5}$h16)?::$h16)\|" .
187			"(?:(?:(?:$h16:){0,6}$h16)?::))";
188
189			$regularName = "(?'reg_name'(?>(?:[$unreserved$delimiters$utf8]++\|$encoded)*))";
190
191			$ipvFuture = "(?'IPvFuture'v[$hex]++\\.[$unreserved$delimiters:]++)";
192			$ipLiteral = "(?'IP_literal'\\[(?>$ipv6address\|$ipvFuture)\\])";
193
194			$port = "(?'port'(?>[$digit]*+))";
195			$host = "(?'host'$ipLiteral\|(?'IPv4address'$ipv4address)\|$regularName)";
196			$userInfo = "(?'userinfo'(?>(?:[$unreserved$delimiters:$utf8]++\|$encoded)*))";
197			$authority = "(?'authority'(?:$userInfo@)?$host(?::$port)?)";
198
199			// Defining the path
200			$segment = "(?>(?:$data)*)";
201			$segmentNotEmpty = "(?>(?:$data)+)";
202			$segmentNoScheme = "(?>([$unreserved$delimiters@$utf8]++\|$encoded)+)";
203
204			$pathAbsoluteEmpty = "(?'path_abempty'(?:/$segment)*)";
205			$pathAbsolute = "(?'path_absolute'/(?:$segmentNotEmpty(?:/$segment)*)?)";
206			$pathNoScheme = "(?'path_noscheme'$segmentNoScheme(?:/$segment)*)";
207			$pathRootless = "(?'path_rootless'$segmentNotEmpty(?:/$segment)*)";
208			$pathEmpty = "(?'path_empty')";
209
210			// Defining other parts
211			$query = "(?'query'(?>(?:$data\|[/?])*))";
212			$fragment = "(?'fragment'(?>(?:$data\|[/?])*))";
213
214			$absolutePath = "(?'hier_part'//$authority$pathAbsoluteEmpty\|$pathAbsolute\|$pathRootless\|$pathEmpty)";
215			$relativePath = "(?'relative_part'//$authority$pathAbsoluteEmpty\|$pathAbsolute\|$pathNoScheme\|$pathEmpty)";
216
217			self::$absoluteUri = "#^$scheme:$absolutePath(?:\\?$query)?(?:\\#$fragment)?$#";
218			self::$relativeUri = "#^$relativePath(?:\\?$query)?(?:\\#$fragment)?$#";
219			self::$scheme = "#^$scheme$#";
220			self::$host = "#^$host$#";
221			}
222			}
223

Riimu / Kit-UrlParser

UriPattern::buildPatterns() A last analyzed 2022-12-13 18:53 UTC

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UriPattern::buildPatterns() A
last analyzed 2022-12-13 18:53 UTC