UrlConverter::split_url() - Code Metrics - Inspection of "cbed4ffad969d3dbcee469e620468ad6ac96624d" - Enjoyzz/assets-collector - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Branch — master (cbed4f)

by Enjoys

created 2021-02-17 15:41 UTC

UrlConverter::split_url() F

↳ Parent: UrlConverter

Complexity

Conditions	23
Paths	> 20000

Size

Total Lines	126
Code Lines	72

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	23
eloc	72
c	1
b	0
f	0
nc	124801
nop	2
dl	0
loc	126
rs	0

How to fix Long Method Complexity

<?php


namespace Enjoys\AssetsCollector\Content;


class UrlConverter
{

    public function relativeToAbsolute(string $baseUrl, string $relativeUrl)
    {
        // If relative URL has a scheme, clean path and return.
        $r = $this->split_url($relativeUrl);
        if ($r === false) {

            return false;
        }
        if (!empty($r['scheme'])) {
            if (!empty($r['path']) && $r['path'][0] == '/') {
                $r['path'] = $this->url_remove_dot_segments($r['path']);
            }
            return $this->join_url($r);
        }

        // Make sure the base URL is absolute.
        $b = $this->split_url($baseUrl);
        if ($b === false || empty($b['scheme']) || empty($b['host'])) {
            return false;
        }
        $r['scheme'] = $b['scheme'];

        // If relative URL has an authority, clean path and return.
        if (isset($r['host'])) {
            if (!empty($r['path'])) {
                $r['path'] = $this->url_remove_dot_segments($r['path']);
            }
            return $this->join_url($r);
        }
        unset($r['port']);
        unset($r['user']);
        unset($r['pass']);

        // Copy base authority.
        $r['host'] = $b['host'];
        if (isset($b['port'])) {
            $r['port'] = $b['port'];
        }
        if (isset($b['user'])) {
            $r['user'] = $b['user'];
        }
        if (isset($b['pass'])) {
            $r['pass'] = $b['pass'];
        }

        // If relative URL has no path, use base path
        if (empty($r['path'])) {
            if (!empty($b['path'])) {
                $r['path'] = $b['path'];
            }
            if (!isset($r['query']) && isset($b['query'])) {
                $r['query'] = $b['query'];
            }
            return $this->join_url($r);
        }

        // If relative URL path doesn't start with /, merge with base path
        if ($r['path'][0] != '/') {
            $base = \mb_strrchr($b['path'], '/', true, 'UTF-8');
            if ($base === false) {
                $base = '';
            }
            $r['path'] = $base . '/' . $r['path'];
        }
        $r['path'] = $this->url_remove_dot_segments($r['path']);
        return $this->join_url($r);
    }


    private function url_remove_dot_segments($path)
    {
        // multi-byte character explode
        $inSegs = preg_split('!/!u', $path);
        $outSegs = array();
        foreach ($inSegs as $seg) {
            if ($seg == '' || $seg == '.') {
                continue;
            }
            if ($seg == '..') {
                array_pop($outSegs);
            } else {
                array_push($outSegs, $seg);
            }
        }
        $outPath = implode('/', $outSegs);
        if ($path[0] == '/') {
            $outPath = '/' . $outPath;
        }
        // compare last multi-byte character against '/'
        if ($outPath != '/' &&
            (\mb_strlen($path) - 1) == \mb_strrpos($path, '/')) {
            $outPath .= '/';
        }
        return $outPath;
    }

    private function join_url($parts, $encode = true)
    {
        if ($encode) {
            if (isset($parts['user'])) {
                $parts['user'] = rawurlencode($parts['user']);
            }
            if (isset($parts['pass'])) {
                $parts['pass'] = rawurlencode($parts['pass']);
            }
            if (isset($parts['host']) &&
                !preg_match('!^(\[[\da-f.:]+\]])|([\da-f.:]+)$!ui', $parts['host'])) {
                $parts['host'] = rawurlencode($parts['host']);
            }
            if (!empty($parts['path'])) {
                $parts['path'] = preg_replace(
                    '!%2F!ui',
                    '/',
                    rawurlencode($parts['path'])
                );
            }
            if (isset($parts['query'])) {
                $parts['query'] = rawurlencode($parts['query']);
            }
            if (isset($parts['fragment'])) {
                $parts['fragment'] = rawurlencode($parts['fragment']);
            }
        }

        $url = '';
        if (!empty($parts['scheme'])) {
            $url .= $parts['scheme'] . ':';
        }
        if (isset($parts['host'])) {
            $url .= '//';
            if (isset($parts['user'])) {
                $url .= $parts['user'];
                if (isset($parts['pass'])) {
                    $url .= ':' . $parts['pass'];
                }
                $url .= '@';
            }
            if (preg_match('!^[\da-f]*:[\da-f.:]+$!ui', $parts['host'])) {
                $url .= '[' . $parts['host'] . ']';
            }    // IPv6
            else {
                $url .= $parts['host'];
            }            // IPv4 or name
            if (isset($parts['port'])) {
                $url .= ':' . $parts['port'];
            }
            if (!empty($parts['path']) && $parts['path'][0] != '/') {
                $url .= '/';
            }
        }
        if (!empty($parts['path'])) {
            $url .= $parts['path'];
        }
        if (isset($parts['query'])) {
            $url .= '?' . $parts['query'];
        }
        if (isset($parts['fragment'])) {
            $url .= '#' . $parts['fragment'];
        }
        return $url;
    }

    private function split_url($url, $decode = true)
    {
        // Character sets from RFC3986.
        $xunressub = 'a-zA-Z\d\-._~\!$&\'()*+,;=';
        $xpchar = $xunressub . ':@%';

        // Scheme from RFC3986.
        $xscheme = '([a-zA-Z][a-zA-Z\d+\-.]*)';

        // User info (user + password) from RFC3986.
        $xuserinfo = '(([' . $xunressub . '%]*)' .
            '(:([' . $xunressub . ':%]*))?)';

        // IPv4 from RFC3986 (without digit constraints).
        $xipv4 = '(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})';

        // IPv6 from RFC2732 (without digit and grouping constraints).
        $xipv6 = '(\[([a-fA-F\d.:]+)\])';

        // Host name from RFC1035.  Technically, must start with a letter.
        // Relax that restriction to better parse URL structure, then
        // leave host name validation to application.
        $xhost_name = '([a-zA-Z\d\-.%]+)';

        // Authority from RFC3986.  Skip IP future.
        $xhost = '(' . $xhost_name . '|' . $xipv4 . '|' . $xipv6 . ')';
        $xport = '(\d*)';
        $xauthority = '((' . $xuserinfo . '@)?' . $xhost .
            '?(:' . $xport . ')?)';

        // Path from RFC3986.  Blend absolute & relative for efficiency.
        $xslash_seg = '(/[' . $xpchar . ']*)';
        $xpath_authabs = '((//' . $xauthority . ')((/[' . $xpchar . ']*)*))';
        $xpath_rel = '([' . $xpchar . ']+' . $xslash_seg . '*)';
        $xpath_abs = '(/(' . $xpath_rel . ')?)';
        $xapath = '(' . $xpath_authabs . '|' . $xpath_abs .
            '|' . $xpath_rel . ')';

        // Query and fragment from RFC3986.
        $xqueryfrag = '([' . $xpchar . '/?' . ']*)';

        // URL.
        $xurl = '^(' . $xscheme . ':)?' . $xapath . '?' .
            '(\?' . $xqueryfrag . ')?(#' . $xqueryfrag . ')?$';


        // Split the URL into components.
        if (!preg_match('!' . $xurl . '!', $url, $m)) {
            return false;
        }

        if (!empty($m[2])) {
            $parts['scheme'] = strtolower($m[2]);

        }

        if (!empty($m[7])) {
            if (isset($m[9])) {
                $parts['user'] = $m[9];
            } else {
                $parts['user'] = '';
            }
        }
        if (!empty($m[10])) {
            $parts['pass'] = $m[11];
        }

        if (!empty($m[13])) {
            $h = $parts['host'] = $m[13];
        } else {
            if (!empty($m[14])) {
                $parts['host'] = $m[14];
            } else {
                if (!empty($m[16])) {
                    $parts['host'] = $m[16];
                } else {
                    if (!empty($m[5])) {
                        $parts['host'] = '';
                    }
                }
            }
        }
        if (!empty($m[17])) {
            $parts['port'] = $m[18];
        }

        if (!empty($m[19])) {
            $parts['path'] = $m[19];
        } else {
            if (!empty($m[21])) {
                $parts['path'] = $m[21];
            } else {
                if (!empty($m[25])) {
                    $parts['path'] = $m[25];
                }
            }
        }

        if (!empty($m[27])) {
            $parts['query'] = $m[28];
        }
        if (!empty($m[29])) {
            $parts['fragment'] = $m[30];
        }

        if (!$decode) {
            return $parts;

        }
        if (!empty($parts['user'])) {
            $parts['user'] = rawurldecode($parts['user']);
        }
        if (!empty($parts['pass'])) {
            $parts['pass'] = rawurldecode($parts['pass']);
        }
        if (!empty($parts['path'])) {
            $parts['path'] = rawurldecode($parts['path']);
        }
        if (isset($h)) {
            $parts['host'] = rawurldecode($parts['host']);
        }
        if (!empty($parts['query'])) {
            $parts['query'] = rawurldecode($parts['query']);
        }
        if (!empty($parts['fragment'])) {
            $parts['fragment'] = rawurldecode($parts['fragment']);
        }
        return $parts;
    }
}

1			<?php
2
3
4			namespace Enjoys\AssetsCollector\Content;
5
6
7			class UrlConverter
8			{
9
10			public function relativeToAbsolute(string $baseUrl, string $relativeUrl)
11			{
12			// If relative URL has a scheme, clean path and return.
13			$r = $this->split_url($relativeUrl);
14			if ($r === false) {
			0 ignored issues – show introduced 2021-02-17 16:10 UTC by Report Bug Copy Issue Report The condition `$r === false` is always `true`. Loading history...
15			return false;
16			}
17			if (!empty($r['scheme'])) {
18			if (!empty($r['path']) && $r['path'][0] == '/') {
19			$r['path'] = $this->url_remove_dot_segments($r['path']);
20			}
21			return $this->join_url($r);
22			}
23
24			// Make sure the base URL is absolute.
25			$b = $this->split_url($baseUrl);
26			if ($b === false \|\| empty($b['scheme']) \|\| empty($b['host'])) {
27			return false;
28			}
29			$r['scheme'] = $b['scheme'];
30
31			// If relative URL has an authority, clean path and return.
32			if (isset($r['host'])) {
33			if (!empty($r['path'])) {
34			$r['path'] = $this->url_remove_dot_segments($r['path']);
35			}
36			return $this->join_url($r);
37			}
38			unset($r['port']);
39			unset($r['user']);
40			unset($r['pass']);
41
42			// Copy base authority.
43			$r['host'] = $b['host'];
44			if (isset($b['port'])) {
45			$r['port'] = $b['port'];
46			}
47			if (isset($b['user'])) {
48			$r['user'] = $b['user'];
49			}
50			if (isset($b['pass'])) {
51			$r['pass'] = $b['pass'];
52			}
53
54			// If relative URL has no path, use base path
55			if (empty($r['path'])) {
56			if (!empty($b['path'])) {
57			$r['path'] = $b['path'];
58			}
59			if (!isset($r['query']) && isset($b['query'])) {
60			$r['query'] = $b['query'];
61			}
62			return $this->join_url($r);
63			}
64
65			// If relative URL path doesn't start with /, merge with base path
66			if ($r['path'][0] != '/') {
67			$base = \mb_strrchr($b['path'], '/', true, 'UTF-8');
68			if ($base === false) {
69			$base = '';
70			}
71			$r['path'] = $base . '/' . $r['path'];
72			}
73			$r['path'] = $this->url_remove_dot_segments($r['path']);
74			return $this->join_url($r);
75			}
76
77
78			private function url_remove_dot_segments($path)
79			{
80			// multi-byte character explode
81			$inSegs = preg_split('!/!u', $path);
82			$outSegs = array();
83			foreach ($inSegs as $seg) {
84			if ($seg == '' \|\| $seg == '.') {
85			continue;
86			}
87			if ($seg == '..') {
88			array_pop($outSegs);
89			} else {
90			array_push($outSegs, $seg);
91			}
92			}
93			$outPath = implode('/', $outSegs);
94			if ($path[0] == '/') {
95			$outPath = '/' . $outPath;
96			}
97			// compare last multi-byte character against '/'
98			if ($outPath != '/' &&
99			(\mb_strlen($path) - 1) == \mb_strrpos($path, '/')) {
100			$outPath .= '/';
101			}
102			return $outPath;
103			}
104
105			private function join_url($parts, $encode = true)
106			{
107			if ($encode) {
108			if (isset($parts['user'])) {
109			$parts['user'] = rawurlencode($parts['user']);
110			}
111			if (isset($parts['pass'])) {
112			$parts['pass'] = rawurlencode($parts['pass']);
113			}
114			if (isset($parts['host']) &&
115			!preg_match('!^(\[[\da-f.:]+\]])\|([\da-f.:]+)$!ui', $parts['host'])) {
116			$parts['host'] = rawurlencode($parts['host']);
117			}
118			if (!empty($parts['path'])) {
119			$parts['path'] = preg_replace(
120			'!%2F!ui',
121			'/',
122			rawurlencode($parts['path'])
123			);
124			}
125			if (isset($parts['query'])) {
126			$parts['query'] = rawurlencode($parts['query']);
127			}
128			if (isset($parts['fragment'])) {
129			$parts['fragment'] = rawurlencode($parts['fragment']);
130			}
131			}
132
133			$url = '';
134			if (!empty($parts['scheme'])) {
135			$url .= $parts['scheme'] . ':';
136			}
137			if (isset($parts['host'])) {
138			$url .= '//';
139			if (isset($parts['user'])) {
140			$url .= $parts['user'];
141			if (isset($parts['pass'])) {
142			$url .= ':' . $parts['pass'];
143			}
144			$url .= '@';
145			}
146			if (preg_match('!^[\da-f]*:[\da-f.:]+$!ui', $parts['host'])) {
147			$url .= '[' . $parts['host'] . ']';
148			} // IPv6
149			else {
150			$url .= $parts['host'];
151			} // IPv4 or name
152			if (isset($parts['port'])) {
153			$url .= ':' . $parts['port'];
154			}
155			if (!empty($parts['path']) && $parts['path'][0] != '/') {
156			$url .= '/';
157			}
158			}
159			if (!empty($parts['path'])) {
160			$url .= $parts['path'];
161			}
162			if (isset($parts['query'])) {
163			$url .= '?' . $parts['query'];
164			}
165			if (isset($parts['fragment'])) {
166			$url .= '#' . $parts['fragment'];
167			}
168			return $url;
169			}
170
171			private function split_url($url, $decode = true)
172			{
173			// Character sets from RFC3986.
174			$xunressub = 'a-zA-Z\d\-._~\!$&\'()*+,;=';
175			$xpchar = $xunressub . ':@%';
176
177			// Scheme from RFC3986.
178			$xscheme = '([a-zA-Z][a-zA-Z\d+\-.]*)';
179
180			// User info (user + password) from RFC3986.
181			$xuserinfo = '(([' . $xunressub . '%]*)' .
182			'(:([' . $xunressub . ':%]*))?)';
183
184			// IPv4 from RFC3986 (without digit constraints).
185			$xipv4 = '(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})';
186
187			// IPv6 from RFC2732 (without digit and grouping constraints).
188			$xipv6 = '(\[([a-fA-F\d.:]+)\])';
189
190			// Host name from RFC1035. Technically, must start with a letter.
191			// Relax that restriction to better parse URL structure, then
192			// leave host name validation to application.
193			$xhost_name = '([a-zA-Z\d\-.%]+)';
194
195			// Authority from RFC3986. Skip IP future.
196			$xhost = '(' . $xhost_name . '\|' . $xipv4 . '\|' . $xipv6 . ')';
197			$xport = '(\d*)';
198			$xauthority = '((' . $xuserinfo . '@)?' . $xhost .
199			'?(:' . $xport . ')?)';
200
201			// Path from RFC3986. Blend absolute & relative for efficiency.
202			$xslash_seg = '(/[' . $xpchar . ']*)';
203			$xpath_authabs = '((//' . $xauthority . ')((/[' . $xpchar . '])))';
204			$xpath_rel = '([' . $xpchar . ']+' . $xslash_seg . '*)';
205			$xpath_abs = '(/(' . $xpath_rel . ')?)';
206			$xapath = '(' . $xpath_authabs . '\|' . $xpath_abs .
207			'\|' . $xpath_rel . ')';
208
209			// Query and fragment from RFC3986.
210			$xqueryfrag = '([' . $xpchar . '/?' . ']*)';
211
212			// URL.
213			$xurl = '^(' . $xscheme . ':)?' . $xapath . '?' .
214			'(\?' . $xqueryfrag . ')?(#' . $xqueryfrag . ')?$';
215
216
217			// Split the URL into components.
218			if (!preg_match('!' . $xurl . '!', $url, $m)) {
219			return false;
220			}
221
222			if (!empty($m[2])) {
223			$parts['scheme'] = strtolower($m[2]);
			0 ignored issues – show Comprehensibility Best Practice introduced 2021-02-17 16:10 UTC by Report Bug Copy Issue Report `$parts` was never initialized. Although not strictly required by PHP, it is generally a good practice to add `$parts = array();` before regardless. Loading history...
224			}
225
226			if (!empty($m[7])) {
227			if (isset($m[9])) {
228			$parts['user'] = $m[9];
229			} else {
230			$parts['user'] = '';
231			}
232			}
233			if (!empty($m[10])) {
234			$parts['pass'] = $m[11];
235			}
236
237			if (!empty($m[13])) {
238			$h = $parts['host'] = $m[13];
239			} else {
240			if (!empty($m[14])) {
241			$parts['host'] = $m[14];
242			} else {
243			if (!empty($m[16])) {
244			$parts['host'] = $m[16];
245			} else {
246			if (!empty($m[5])) {
247			$parts['host'] = '';
248			}
249			}
250			}
251			}
252			if (!empty($m[17])) {
253			$parts['port'] = $m[18];
254			}
255
256			if (!empty($m[19])) {
257			$parts['path'] = $m[19];
258			} else {
259			if (!empty($m[21])) {
260			$parts['path'] = $m[21];
261			} else {
262			if (!empty($m[25])) {
263			$parts['path'] = $m[25];
264			}
265			}
266			}
267
268			if (!empty($m[27])) {
269			$parts['query'] = $m[28];
270			}
271			if (!empty($m[29])) {
272			$parts['fragment'] = $m[30];
273			}
274
275			if (!$decode) {
276			return $parts;
			0 ignored issues – show Comprehensibility Best Practice introduced 2021-02-17 16:10 UTC by Report Bug Copy Issue Report The variable `$parts` does not seem to be defined for all execution paths leading up to this point. Loading history...
277			}
278			if (!empty($parts['user'])) {
279			$parts['user'] = rawurldecode($parts['user']);
280			}
281			if (!empty($parts['pass'])) {
282			$parts['pass'] = rawurldecode($parts['pass']);
283			}
284			if (!empty($parts['path'])) {
285			$parts['path'] = rawurldecode($parts['path']);
286			}
287			if (isset($h)) {
288			$parts['host'] = rawurldecode($parts['host']);
289			}
290			if (!empty($parts['query'])) {
291			$parts['query'] = rawurldecode($parts['query']);
292			}
293			if (!empty($parts['fragment'])) {
294			$parts['fragment'] = rawurldecode($parts['fragment']);
295			}
296			return $parts;
297			}
298			}

Enjoyzz / assets-collector

Branch — master (cbed4f)

UrlConverter::split_url() F

Complexity

Size

Duplication

Importance

How to fix Long Method Complexity

Long Method

Duplication Side-by-Side

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