Generator::build() - Code Metrics - Inspection of "Merge pull request #196 from willy68/FastRoute_for..." - auraphp/Aura.Router - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — 3.x ( 8c337a...52fc0b )

by Hari

created 2023-06-12 04:35 UTC

Generator::build() A

↳ Parent: Generator

Complexity

Conditions	1
Paths	1

Size

Total Lines	14
Code Lines	10

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes

Metric	Value
cc	1
eloc	10
nc	1
nop	3
dl	0
loc	14
ccs	0
cts	0
cp	0
crap	2
rs	9.9332
c	0
b	0
f	0

<?php
/**
 *
 * This file is part of Aura for PHP.
 *
 * @license http://opensource.org/licenses/bsd-license.php BSD
 *
 */

namespace Aura\Router;

/**
 *
 * Generates URL paths from routes.
 *
 * @package Aura.Router
 *
 */
class Generator
{
    const REGEX = '#{\s*([a-zA-Z_][a-zA-Z0-9_-]*)\s*:*\s*([^{}]*{*[^{}]*}*[^{}]*)\s*}#';
    const OPT_REGEX = '#{\s*/\s*([a-z][a-zA-Z0-9_-]*\s*:*\s*[^/]*{*[^/]*}*[^/]*,*)}#';
    const EXPLODE_REGEX = '#\s*([a-zA-Z_][a-zA-Z0-9_-]*)\s*(?::*\s*([^,]*[{\d+,}]*[^,\w\s])[^}]?)?#';

    /**
     *
     * The map of all routes.
     *
     * @var Map
     *
     */
    protected $map;

    /**
     *
     * The route from which the URL is being generated.
     *
     * @var Route
     *
     */
    protected $route;

    /**
     *
     * The URL being generated.
     *
     * @var string
     *
     */
    protected $url;

    /**
     *
     * Data being interpolated into the URL.
     *
     * @var array
     *
     */
    protected $data;

    /**
     *
     * Replacement data.
     *
     * @var array
     *
     */
    protected $repl;

    /**
     *
     * Leave values raw?
     *
     * @var bool
     *
     */
    protected $raw;

    /**
     *
     * The basepath to prefix to generated paths.
     *
     * @var string|null
     *
     */
    protected $basepath;

    /**
     *
     * Constructor.
     *
     * @param Map $map A route collection object.
     *
     * @param string $basepath The basepath to prefix to generated paths.
     *
     */
    public function __construct(Map $map, $basepath = null)
    {
        $this->map = $map;
        $this->basepath = $basepath;
    }

    /**
     *
     * Looks up a route by name, and interpolates data into it to return
     * a URI path.
     *
     * @param string $name The route name to look up.
     *
     * @param array $data The data to interpolate into the URI; data keys
     * map to attribute tokens in the path.
     *
     * @return string A URI path string if the route name is found
     *
     * @throws Exception\RouteNotFound
     *
     */
    public function generate($name, array $data = [])
    {
        return $this->build($name, $data, false);
    }

    /**
     *
     * Gets the URL for a Route.
     *
     * @param string $name The route name to look up.
     *
     * @param array $data An array of key-value pairs to interpolate into the
     * attribute tokens in the path for the Route.
     *
     * @param bool $raw Leave the data unencoded?
     *
     * @return string
     *
     * @throws Exception\RouteNotFound
     *
     */
    protected function build($name, array $data, $raw)
    {
        $this->raw = $raw;
        $this->route = $this->map->getRoute($name);
        $this->buildUrl();
        $this->repl = [];
        $this->data = array_merge($this->route->defaults, $data);

        $this->buildTokenReplacements();
        $this->buildOptionalReplacements();
        $this->url = strtr($this->url, $this->repl);
        $this->buildWildcardReplacement();

        return $this->url;
    }

    /**
     *
     * Builds the URL property.
     *
     * @return void
     *
     */
    protected function buildUrl()
    {
        $this->url = $this->basepath . $this->route->path;

        $host = $this->route->host;
        if (!$host) {
            return;
        }
        $this->url = '//' . $host . $this->url;

        $secure = $this->route->secure;
        if ($secure === null) {

            return;
        }
        $protocol = $secure ? 'https:' : 'http:';
        $this->url = $protocol . $this->url;
    }

    /**
     *
     * Builds urlencoded data for token replacements.
     *
     * @return void
     *
     */
    protected function buildTokenReplacements()
    {
        preg_match_all(self::REGEX, $this->url, $matches, PREG_SET_ORDER);
        foreach ($matches as $match) {
            $name = $match[1];
            foreach ($this->data as $key => $val) {
                if ($key === $name) {
                    $token = isset($match[2]) ? $match[2] : null;
                    if (isset($this->route->tokens[$name]) && is_string($this->route->tokens[$name])) {
                        // if $token is null use route token
                        $token = $token ?: $this->route->tokens[$name];
                    }
                    if ($token) {
                        if (!preg_match('~^' . $token . '$~', (string)$val)) {
                            throw new \RuntimeException(sprintf(
                                'Parameter value for [%s] did not match the regex `%s`',
                                $name,
                                $token
                            ));
                        }
                    }
                    $this->repl[$match[0]] = $this->encode($val);
                }
            }
        }
    }

    /**
     *
     * Encodes values, or leaves them raw.
     *
     * @param string $val The value to encode or leave raw.
     *
     * @return mixed
     *
     */
    protected function encode($val)
    {
        if ($this->raw) {
            return $val;
        }

        return is_scalar($val) ? rawurlencode($val) : null;

    }

    /**
     *
     * Builds replacements for attributes in the generated path.
     *
     * @return void
     *
     */
    protected function buildOptionalReplacements()
    {
        // replacements for optional attributes, if any
        preg_match(self::OPT_REGEX, $this->url, $matches);
        if (!$matches) {
            return;
        }

        // the optional attribute names in the token
        $names = [];
        preg_match_all(self::EXPLODE_REGEX, $matches[1], $exMatches, PREG_SET_ORDER);
        foreach ($exMatches as $match) {
            $name = $match[1];
            $token = isset($match[2]) ? $match[2] : null;
            if (isset($this->route->tokens[$name]) && is_string($this->route->tokens[$name])) {
                // if $token is null use route token
                $token = $token ?: $this->route->tokens[$name];
            }
            $names[] = $token ? [$name, $token] : $name;
        }

        // this is the full token to replace in the path
        $key = $matches[0];

        // build the replacement string
        $this->repl[$key] = $this->buildOptionalReplacement($names);
    }

    /**
     *
     * Builds the optional replacement for attribute names.
     *
     * @param array $names The optional replacement names.
     *
     * @return string
     *
     */
    protected function buildOptionalReplacement($names)
    {
        $repl = '';
        foreach ($names as $name) {
            $token = null;
            if (is_array($name)) {
                $token = $name[1];
                $name = $name[0];
            }
            // is there data for this optional attribute?
            if (!isset($this->data[$name])) {
                // options are *sequentially* optional, so if one is
                // missing, we're done
                return $repl;
            }

            $val = $this->data[$name];

            // Check val matching token
            if ($token) {
                if (!preg_match('~^' . $token . '$~', (string)$val)) {
                    throw new \RuntimeException(sprintf(
                        'Parameter value for [%s] did not match the regex `%s`',
                        $name,
                        $token
                    ));
                }
            }
            // encode the optional value
            $repl .= '/' . $this->encode($val);
        }
        return $repl;
    }

    /**
     *
     * Builds a wildcard replacement in the generated path.
     *
     * @return void
     *
     */
    protected function buildWildcardReplacement()
    {
        $wildcard = $this->route->wildcard;
        if ($wildcard && isset($this->data[$wildcard])) {
            $this->url = rtrim($this->url, '/');
            foreach ($this->data[$wildcard] as $val) {
                $this->url .= '/' . $this->encode($val);
            }
        }
    }

    /**
     *
     * Generate the route without url encoding.
     *
     * @param string $name The route name to look up.
     *
     * @param array $data The data to interpolate into the URI; data keys
     * map to attribute tokens in the path.
     *
     * @return string A URI path string
     *
     * @throws Exception\RouteNotFound
     *
     */
    public function generateRaw($name, array $data = [])
    {
        return $this->build($name, $data, true);
    }
}


1		<?php
2		/**
3		*
4		* This file is part of Aura for PHP.
5		*
6		* @license http://opensource.org/licenses/bsd-license.php BSD
7		*
8		*/
9
10		namespace Aura\Router;
11
12		/**
13		*
14		* Generates URL paths from routes.
15		*
16		* @package Aura.Router
17		*
18		*/
19		class Generator
20		{
21		const REGEX = '#{\s([a-zA-Z_][a-zA-Z0-9_-])\s:\s([^{}]{[^{}]}[^{}])\s*}#';
22		const OPT_REGEX = '#{\s/\s([a-z][a-zA-Z0-9_-]\s:\s[^/]{[^/]}[^/],)}#';
23		const EXPLODE_REGEX = '#\s([a-zA-Z_][a-zA-Z0-9_-])\s(?::\s([^,][{\d+,}]*[^,\w\s])[^}]?)?#';
24
25		/**
26		*
27		* The map of all routes.
28		*
29		* @var Map
30		*
31		*/
32		protected $map;
33
34		/**
35		*
36		* The route from which the URL is being generated.
37		*
38		* @var Route
39		*
40		*/
41		protected $route;
42
43		/**
44		*
45		* The URL being generated.
46		*
47		* @var string
48		*
49		*/
50		protected $url;
51
52		/**
53		*
54		* Data being interpolated into the URL.
55		*
56		* @var array
57		*
58		*/
59		protected $data;
60
61		/**
62		*
63		* Replacement data.
64		*
65		* @var array
66		*
67		*/
68		protected $repl;
69
70		/**
71		*
72		* Leave values raw?
73		*
74		* @var bool
75		*
76		*/
77		protected $raw;
78
79		/**
80		*
81		* The basepath to prefix to generated paths.
82		*
83		* @var string\|null
84		*
85		*/
86		protected $basepath;
87
88		/**
89		*
90		* Constructor.
91		*
92	14	* @param Map $map A route collection object.
93		*
94	14	* @param string $basepath The basepath to prefix to generated paths.
95	14	*
96	14	*/
97		public function __construct(Map $map, $basepath = null)
98		{
99		$this->map = $map;
100		$this->basepath = $basepath;
101		}
102
103		/**
104		*
105		* Looks up a route by name, and interpolates data into it to return
106		* a URI path.
107		*
108		* @param string $name The route name to look up.
109		*
110		* @param array $data The data to interpolate into the URI; data keys
111		* map to attribute tokens in the path.
112		*
113		* @return string A URI path string if the route name is found
114	12	*
115		* @throws Exception\RouteNotFound
116	12	*
117		*/
118		public function generate($name, array $data = [])
119		{
120		return $this->build($name, $data, false);
121		}
122
123		/**
124		*
125		* Gets the URL for a Route.
126		*
127		* @param string $name The route name to look up.
128		*
129		* @param array $data An array of key-value pairs to interpolate into the
130		* attribute tokens in the path for the Route.
131		*
132		* @param bool $raw Leave the data unencoded?
133		*
134	2	* @return string
135		*
136	2	* @throws Exception\RouteNotFound
137		*
138		*/
139		protected function build($name, array $data, $raw)
140		{
141		$this->raw = $raw;
142		$this->route = $this->map->getRoute($name);
143		$this->buildUrl();
144		$this->repl = [];
145		$this->data = array_merge($this->route->defaults, $data);
146
147		$this->buildTokenReplacements();
148		$this->buildOptionalReplacements();
149		$this->url = strtr($this->url, $this->repl);
150		$this->buildWildcardReplacement();
151
152		return $this->url;
153	14	}
154
155	14	/**
156	14	*
157	13	* Builds the URL property.
158	13	*
159	13	* @return void
160		*
161	13	*/
162	13	protected function buildUrl()
163	13	{
164	13	$this->url = $this->basepath . $this->route->path;
165
166	13	$host = $this->route->host;
167		if (!$host) {
168		return;
169		}
170		$this->url = '//' . $host . $this->url;
171
172		$secure = $this->route->secure;
173		if ($secure === null) {
		0 ignored issues – show introduced 2021-11-13 06:10 UTC by Report Bug Copy Issue Report The condition `$secure === null` is always `false`. Loading history...
174		return;
175		}
176	13	$protocol = $secure ? 'https:' : 'http:';
177		$this->url = $protocol . $this->url;
178	13	}
179
180	13	/**
181	13	*
182	10	* Builds urlencoded data for token replacements.
183		*
184	3	* @return void
185		*
186	3	*/
187	3	protected function buildTokenReplacements()
188	1	{
189		preg_match_all(self::REGEX, $this->url, $matches, PREG_SET_ORDER);
190	2	foreach ($matches as $match) {
191	2	$name = $match[1];
192	2	foreach ($this->data as $key => $val) {
193		if ($key === $name) {
194		$token = isset($match[2]) ? $match[2] : null;
195		if (isset($this->route->tokens[$name]) && is_string($this->route->tokens[$name])) {
196		// if $token is null use route token
197		$token = $token ?: $this->route->tokens[$name];
198		}
199		if ($token) {
200		if (!preg_match('~^' . $token . '$~', (string)$val)) {
201	13	throw new \RuntimeException(sprintf(
202		'Parameter value for [%s] did not match the regex `%s`',
203	13	$name,
204	13	$token
205		));
206	13	}
207		}
208		$this->repl[$match[0]] = $this->encode($val);
209		}
210		}
211		}
212		}
213
214		/**
215	13	*
216		* Encodes values, or leaves them raw.
217		*
218	13	* @param string $val The value to encode or leave raw.
219	13	*
220	12	* @return mixed
221		*
222		*/
223		protected function encode($val)
224	1	{
225		if ($this->raw) {
226		return $val;
227	1	}
228
229		return is_scalar($val) ? rawurlencode($val) : null;
		0 ignored issues – show introduced 2021-11-13 06:10 UTC by Report Bug Copy Issue Report The condition `is_scalar($val)` is always `true`. Loading history...
230	1	}
231	1
232		/**
233		*
234		* Builds replacements for attributes in the generated path.
235		*
236		* @return void
237		*
238		*/
239		protected function buildOptionalReplacements()
240		{
241		// replacements for optional attributes, if any
242	1	preg_match(self::OPT_REGEX, $this->url, $matches);
243		if (!$matches) {
244	1	return;
245	1	}
246
247	1	// the optional attribute names in the token
248		$names = [];
249		preg_match_all(self::EXPLODE_REGEX, $matches[1], $exMatches, PREG_SET_ORDER);
250	1	foreach ($exMatches as $match) {
251		$name = $match[1];
252		$token = isset($match[2]) ? $match[2] : null;
253	1	if (isset($this->route->tokens[$name]) && is_string($this->route->tokens[$name])) {
254		// if $token is null use route token
255	1	$token = $token ?: $this->route->tokens[$name];
256		}
257		$names[] = $token ? [$name, $token] : $name;
258		}
259
260		// this is the full token to replace in the path
261		$key = $matches[0];
262
263		// build the replacement string
264		$this->repl[$key] = $this->buildOptionalReplacement($names);
265	13	}
266
267	13	/**
268	13	*
269	1	* Builds the optional replacement for attribute names.
270	1	*
271	1	* @param array $names The optional replacement names.
272		*
273		* @return string
274	13	*
275		*/
276		protected function buildOptionalReplacement($names)
277		{
278		$repl = '';
279		foreach ($names as $name) {
280		$token = null;
281		if (is_array($name)) {
282		$token = $name[1];
283		$name = $name[0];
284		}
285	13	// is there data for this optional attribute?
286		if (!isset($this->data[$name])) {
287	13	// options are sequentially optional, so if one is
288	2	// missing, we're done
289		return $repl;
290		}
291	11
292		$val = $this->data[$name];
293
294		// Check val matching token
295		if ($token) {
296		if (!preg_match('~^' . $token . '$~', (string)$val)) {
297		throw new \RuntimeException(sprintf(
298		'Parameter value for [%s] did not match the regex `%s`',
299		$name,
300		$token
301		));
302		}
303		}
304		// encode the optional value
305		$repl .= '/' . $this->encode($val);
306		}
307		return $repl;
308		}
309
310		/**
311		*
312		* Builds a wildcard replacement in the generated path.
313		*
314		* @return void
315		*
316		*/
317		protected function buildWildcardReplacement()
318		{
319		$wildcard = $this->route->wildcard;
320		if ($wildcard && isset($this->data[$wildcard])) {
321		$this->url = rtrim($this->url, '/');
322		foreach ($this->data[$wildcard] as $val) {
323		$this->url .= '/' . $this->encode($val);
324		}
325		}
326		}
327
328		/**
329		*
330		* Generate the route without url encoding.
331		*
332		* @param string $name The route name to look up.
333		*
334		* @param array $data The data to interpolate into the URI; data keys
335		* map to attribute tokens in the path.
336		*
337		* @return string A URI path string
338		*
339		* @throws Exception\RouteNotFound
340		*
341		*/
342		public function generateRaw($name, array $data = [])
343		{
344		return $this->build($name, $data, true);
345		}
346		}
347

auraphp / Aura.Router

Push — 3.x ( 8c337a...52fc0b )

Generator::build() A

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