Host::pattern() - Code Metrics - Inspection of "Refactoring some router options to properties" - burzum/php-router - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — refactor ( 885968...d87829 )

by Florian

created 2019-12-19 12:46 UTC

Host::pattern() A

↳ Parent: Host

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	1
CRAP Score	1

Importance

Changes

Metric	Value
eloc	1
c	0
b	0
f	0
dl	0
loc	3
ccs	1
cts	1
cp	1
rs	10
cc	1
nc	1
nop	0
crap	1

<?php

declare(strict_types=1);

namespace Lead\Router;

use Lead\Router\Exception\RouterException;

/**
 * Defines a Host Pattern to match
 */
class Host implements HostInterface
{
    /**
     * Class dependencies.
     *
     * @var array
     */
    protected $classes = [];

    /**
     * The matching scheme.
     *
     * @var string
     */
    protected $scheme = '*';

    /**
     * The matching host.
     *
     * @var string
     */
    protected $pattern = '*';

    /**
     * The tokens structure extracted from host's pattern.
     *
     * @see Parser::tokenize()
     * @var array|null
     */
    protected $token = null;

    /**
     * The host's regular expression pattern.
     *
     * @see Parser::compile()
     * @var string|null
     */
    protected $regex = null;

    /**
     * The host's variables.
     *
     * @see Parser::compile()
     * @var array|null
     */
    protected $variables = null;

    /**
     * Constructs a route
     *
     * @param array $config The config array.
     */
    public function __construct($config = [])
    {
        $defaults = [
            'scheme'     => '*',
            'pattern'    => '*',
            'classes'    => [
                'parser' => 'Lead\Router\Parser'
            ]
        ];
        $config += $defaults;

        $this->classes = $config['classes'];
        $this->setScheme($config['scheme']);
        $this->setPattern($config['pattern']);
    }

    /**
     * Sets the scheme
     *
     * @param string $scheme Scheme to set.
     * @return $this
     */
    public function setScheme(string $scheme)
    {
        $this->scheme = $scheme;

        return $this;
    }

    /**
     * Gets the scheme
     *
     * @return string|null
     */
    public function scheme(): ?string
    {
        return $this->scheme;
    }

    /**
     * Sets the hosts pattern
     *
     * @param string $pattern Pattern
     * @return $this
     */
    public function setPattern(string $pattern)
    {
        $this->token = null;
        $this->regex = null;
        $this->variables = null;
        $this->pattern = $pattern;

        return $this;
    }

    /**
     * Gets the hosts pattern
     *
     * @return string
     */
    public function pattern(): string
    {
        return $this->pattern;
    }

    /**
     * Returns the route's token structures.
     *
     * @return array A collection route's token structure.
     */
    protected function token()
    {
        if ($this->token === null) {
            $parser = $this->classes['parser'];
            $this->token = [];
            $this->regex = null;
            $this->variables = null;
            $this->token = $parser::tokenize($this->pattern, '.');
        }
        return $this->token;
    }

    /**
     * Gets the route's regular expression pattern.
     *
     * @return string the route's regular expression pattern.
     */
    public function regex(): string
    {
        if ($this->regex !== null) {
            return $this->regex;
        }
        $this->compile();

        return $this->regex;
    }

    /**
     * Gets the route's variables and their associated pattern in case of array variables.
     *
     * @return array The route's variables and their associated pattern.
     */
    public function variables()
    {
        if ($this->variables !== null) {
            return $this->variables;
        }

        $this->compile();

        return $this->variables;
    }

    /**
     * Compiles the host's patten.
     */
    protected function compile(): void
    {
        if ($this->pattern() === '*') {
            return;
        }

        $parser = $this->classes['parser'];
        $rule = $parser::compile($this->token());
        $this->regex = $rule[0];
        $this->variables = $rule[1];
    }

    /**
     * @inheritDoc
     */
    public function match($request, &$hostVariables = null): bool
    {
        $defaults = [
            'host'   => '*',
            'scheme' => '*'
        ];
        $request += $defaults;
        $scheme = $request['scheme'];
        $host = $request['host'];

        $hostVariables = [];

        $anyHost = $this->pattern() === '*' || $host === '*';
        $anyScheme = $this->scheme() === '*' || $scheme === '*';


        if ($anyHost) {
            if ($this->variables()) {
                $hostVariables = array_fill_keys(array_keys($this->variables()), null);
            }
            return $anyScheme || $this->scheme() === $scheme;
        }

        if (!$anyScheme && $this->scheme() !== $scheme) {
            return false;
        }

        if (!preg_match('~^' . $this->regex() . '$~', $host, $matches)) {
            $hostVariables = null;
            return false;
        }
        $i = 0;

        foreach ($this->variables() as $name => $pattern) {
            $hostVariables[$name] = $matches[++$i];
        }
        return true;
    }

    /**
     * @inheritDoc
     */
    public function link($params = [], $options = []): string
    {
        $defaults = [
            'scheme'   => $this->scheme()
        ];
        $options += $defaults;

        if (!isset($options['host'])) {
            $options['host'] = $this->_link($this->token(), $params);
        }

        $scheme = $options['scheme'] !== '*' ? $options['scheme'] . '://' : '//';

        return $scheme . $options['host'];
    }

    /**
     * Helper for `Host::link()`.
     *
     * @param  array $token  The token structure array.
     * @param  array $params The route parameters.
     * @return string The URL path representation of the token structure array.
     */
    protected function _link(array $token, array $params): string
    {
        $link = '';
        foreach ($token['tokens'] as $child) {
            if (is_string($child)) {
                $link .= $child;
                continue;
            }
            if (isset($child['tokens'])) {
                if ($child['repeat']) {
                    $name = $child['repeat'];
                    $values = isset($params[$name]) && $params[$name] !== null ? (array) $params[$name] : [];
                    foreach ($values as $value) {
                        $link .= $this->_link($child, [$name => $value] + $params);
                    }
                } else {
                    $link .= $this->_link($child, $params);
                }
                continue;
            }
            if (!array_key_exists($child['name'], $params)) {
                if (!$token['optional']) {
                    throw new RouterException("Missing parameters `'{$child['name']}'` for host: `'{$this->pattern}'`.");
                }
                return '';
            }
            $link .= $params[$child['name']];
        }
        return $link;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Lead\Router;
6
7		use Lead\Router\Exception\RouterException;
8
9		/**
10		* Defines a Host Pattern to match
11		*/
12		class Host implements HostInterface
13		{
14		/**
15		* Class dependencies.
16		*
17		* @var array
18		*/
19		protected $classes = [];
20
21		/**
22		* The matching scheme.
23		*
24		* @var string
25		*/
26		protected $scheme = '*';
27
28		/**
29		* The matching host.
30		*
31		* @var string
32		*/
33		protected $pattern = '*';
34
35		/**
36		* The tokens structure extracted from host's pattern.
37		*
38		* @see Parser::tokenize()
39		* @var array\|null
40		*/
41		protected $token = null;
42
43		/**
44		* The host's regular expression pattern.
45		*
46		* @see Parser::compile()
47		* @var string\|null
48		*/
49		protected $regex = null;
50
51		/**
52		* The host's variables.
53		*
54		* @see Parser::compile()
55		* @var array\|null
56		*/
57		protected $variables = null;
58
59		/**
60		* Constructs a route
61		*
62		* @param array $config The config array.
63		*/
64		public function __construct($config = [])
65		{
66		$defaults = [
67		'scheme' => '*',
68		'pattern' => '*',
69		'classes' => [
70		'parser' => 'Lead\Router\Parser'
71		]
72	25	];
73	25	$config += $defaults;
74
75	25	$this->classes = $config['classes'];
76	25	$this->setScheme($config['scheme']);
77	25	$this->setPattern($config['pattern']);
78		}
79
80		/**
81		* Sets the scheme
82		*
83		* @param string $scheme Scheme to set.
84		* @return $this
85		*/
86		public function setScheme(string $scheme)
87		{
88	25	$this->scheme = $scheme;
89
90	25	return $this;
91		}
92
93		/**
94		* Gets the scheme
95		*
96		* @return string\|null
97		*/
98		public function scheme(): ?string
99		{
100	21	return $this->scheme;
101		}
102
103		/**
104		* Sets the hosts pattern
105		*
106		* @param string $pattern Pattern
107		* @return $this
108		*/
109		public function setPattern(string $pattern)
110		{
111	25	$this->token = null;
112	25	$this->regex = null;
113	25	$this->variables = null;
114	25	$this->pattern = $pattern;
115
116	25	return $this;
117		}
118
119		/**
120		* Gets the hosts pattern
121		*
122		* @return string
123		*/
124		public function pattern(): string
125		{
126	15	return $this->pattern;
127		}
128
129		/**
130		* Returns the route's token structures.
131		*
132		* @return array A collection route's token structure.
133		*/
134		protected function token()
135		{
136		if ($this->token === null) {
137	20	$parser = $this->classes['parser'];
138	20	$this->token = [];
139	20	$this->regex = null;
140	20	$this->variables = null;
141	20	$this->token = $parser::tokenize($this->pattern, '.');
142		}
143	20	return $this->token;
144		}
145
146		/**
147		* Gets the route's regular expression pattern.
148		*
149		* @return string the route's regular expression pattern.
150		*/
151		public function regex(): string
152		{
153		if ($this->regex !== null) {
154	7	return $this->regex;
155		}
156	11	$this->compile();
157
158	11	return $this->regex;
159		}
160
161		/**
162		* Gets the route's variables and their associated pattern in case of array variables.
163		*
164		* @return array The route's variables and their associated pattern.
165		*/
166		public function variables()
167		{
168		if ($this->variables !== null) {
169	10	return $this->variables;
170		}
171
172	4	$this->compile();
173
174	4	return $this->variables;
175		}
176
177		/**
178		* Compiles the host's patten.
179		*/
180		protected function compile(): void
181		{
182		if ($this->pattern() === '*') {
183	2	return;
184		}
185
186	13	$parser = $this->classes['parser'];
187	13	$rule = $parser::compile($this->token());
188	13	$this->regex = $rule[0];
189	13	$this->variables = $rule[1];
190		}
191
192		/**
193		* @inheritDoc
194		*/
195		public function match($request, &$hostVariables = null): bool
196		{
197		$defaults = [
198		'host' => '*',
199		'scheme' => '*'
200	12	];
201	12	$request += $defaults;
202	12	$scheme = $request['scheme'];
203	12	$host = $request['host'];
204
205	12	$hostVariables = [];
206
207	12	$anyHost = $this->pattern() === '' \|\| $host === '';
208	12	$anyScheme = $this->scheme() === '' \|\| $scheme === '';
209
210
211		if ($anyHost) {
212		if ($this->variables()) {
213	1	$hostVariables = array_fill_keys(array_keys($this->variables()), null);
214		}
215	3	return $anyScheme \|\| $this->scheme() === $scheme;
216		}
217
218		if (!$anyScheme && $this->scheme() !== $scheme) {
219	1	return false;
220		}
221
222		if (!preg_match('~^' . $this->regex() . '$~', $host, $matches)) {
223	6	$hostVariables = null;
224	6	return false;
225		}
226	8	$i = 0;
227
228		foreach ($this->variables() as $name => $pattern) {
229	8	$hostVariables[$name] = $matches[++$i];
230		}
231	8	return true;
232		}
233
234		/**
235		* @inheritDoc
236		*/
237		public function link($params = [], $options = []): string
238		{
239		$defaults = [
240		'scheme' => $this->scheme()
241	8	];
242	8	$options += $defaults;
243
244		if (!isset($options['host'])) {
245	7	$options['host'] = $this->_link($this->token(), $params);
246		}
247
248	7	$scheme = $options['scheme'] !== '*' ? $options['scheme'] . '://' : '//';
249
250	7	return $scheme . $options['host'];
251		}
252
253		/**
254		* Helper for `Host::link()`.
255		*
256		* @param array $token The token structure array.
257		* @param array $params The route parameters.
258		* @return string The URL path representation of the token structure array.
259		*/
260		protected function _link(array $token, array $params): string
261		{
262	7	$link = '';
263		foreach ($token['tokens'] as $child) {
264		if (is_string($child)) {
265	7	$link .= $child;
266	7	continue;
267		}
268		if (isset($child['tokens'])) {
269		if ($child['repeat']) {
270	1	$name = $child['repeat'];
271	1	$values = isset($params[$name]) && $params[$name] !== null ? (array) $params[$name] : [];
272		foreach ($values as $value) {
273	1	$link .= $this->_link($child, [$name => $value] + $params);
274		}
275		} else {
276		$link .= $this->_link($child, $params);
277		}
278	1	continue;
279		}
280		if (!array_key_exists($child['name'], $params)) {
281		if (!$token['optional']) {
282	1	throw new RouterException("Missing parameters `'{$child['name']}'` for host: `'{$this->pattern}'`.");
283		}
284		return '';
285		}
286	6	$link .= $params[$child['name']];
287		}
288	6	return $link;
289		}
290		}
291

burzum / php-router

Push — refactor ( 885968...d87829 )

Host::pattern() A

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