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essential-addons-for-elementor-lite / vendor / matthiasmullie / path-converter / src / Converter.php

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Converter.php 7 years ago ConverterInterface.php 7 years ago NoConverter.php 7 years ago

Converter.php

197 lines

1	<?php
2
3	namespace MatthiasMullie\PathConverter;
4
5	/**
6	* Convert paths relative from 1 file to another.
7	*
8	* E.g.
9	* ../../images/icon.jpg relative to /css/imports/icons.css
10	* becomes
11	* ../images/icon.jpg relative to /css/minified.css
12	*
13	* Please report bugs on https://github.com/matthiasmullie/path-converter/issues
14	*
15	* @author Matthias Mullie <pathconverter@mullie.eu>
16	* @copyright Copyright (c) 2015, Matthias Mullie. All rights reserved
17	* @license MIT License
18	*/
19	class Converter implements ConverterInterface
20	{
21	/**
22	* @var string
23	*/
24	protected $from;
25
26	/**
27	* @var string
28	*/
29	protected $to;
30
31	/**
32	* @param string $from The original base path (directory, not file!)
33	* @param string $to The new base path (directory, not file!)
34	* @param string $root Root directory (defaults to `getcwd`)
35	*/
36	public function __construct($from, $to, $root = '')
37	{
38	$shared = $this->shared($from, $to);
39	if ($shared === '') {
40	// when both paths have nothing in common, one of them is probably
41	// absolute while the other is relative
42	$root = $root ?: getcwd();
43	$from = strpos($from, $root) === 0 ? $from : preg_replace('/\/+/', '/', $root.'/'.$from);
44	$to = strpos($to, $root) === 0 ? $to : preg_replace('/\/+/', '/', $root.'/'.$to);
45
46	// or traveling the tree via `..`
47	// attempt to resolve path, or assume it's fine if it doesn't exist
48	$from = @realpath($from) ?: $from;
49	$to = @realpath($to) ?: $to;
50	}
51
52	$from = $this->dirname($from);
53	$to = $this->dirname($to);
54
55	$from = $this->normalize($from);
56	$to = $this->normalize($to);
57
58	$this->from = $from;
59	$this->to = $to;
60	}
61
62	/**
63	* Normalize path.
64	*
65	* @param string $path
66	*
67	* @return string
68	*/
69	protected function normalize($path)
70	{
71	// deal with different operating systems' directory structure
72	$path = rtrim(str_replace(DIRECTORY_SEPARATOR, '/', $path), '/');
73
74	/*
75	* Example:
76	* /home/forkcms/frontend/cache/compiled_templates/../../core/layout/css/../images/img.gif
77	* to
78	* /home/forkcms/frontend/core/layout/images/img.gif
79	*/
80	do {
81	$path = preg_replace('/[^\/]+(?<!\.\.)\/\.\.\//', '', $path, -1, $count);
82	} while ($count);
83
84	return $path;
85	}
86
87	/**
88	* Figure out the shared path of 2 locations.
89	*
90	* Example:
91	* /home/forkcms/frontend/core/layout/images/img.gif
92	* and
93	* /home/forkcms/frontend/cache/minified_css
94	* share
95	* /home/forkcms/frontend
96	*
97	* @param string $path1
98	* @param string $path2
99	*
100	* @return string
101	*/
102	protected function shared($path1, $path2)
103	{
104	// $path could theoretically be empty (e.g. no path is given), in which
105	// case it shouldn't expand to array(''), which would compare to one's
106	// root /
107	$path1 = $path1 ? explode('/', $path1) : array();
108	$path2 = $path2 ? explode('/', $path2) : array();
109
110	$shared = array();
111
112	// compare paths & strip identical ancestors
113	foreach ($path1 as $i => $chunk) {
114	if (isset($path2[$i]) && $path1[$i] == $path2[$i]) {
115	$shared[] = $chunk;
116	} else {
117	break;
118	}
119	}
120
121	return implode('/', $shared);
122	}
123
124	/**
125	* Convert paths relative from 1 file to another.
126	*
127	* E.g.
128	* ../images/img.gif relative to /home/forkcms/frontend/core/layout/css
129	* should become:
130	* ../../core/layout/images/img.gif relative to
131	* /home/forkcms/frontend/cache/minified_css
132	*
133	* @param string $path The relative path that needs to be converted
134	*
135	* @return string The new relative path
136	*/
137	public function convert($path)
138	{
139	// quit early if conversion makes no sense
140	if ($this->from === $this->to) {
141	return $path;
142	}
143
144	$path = $this->normalize($path);
145	// if we're not dealing with a relative path, just return absolute
146	if (strpos($path, '/') === 0) {
147	return $path;
148	}
149
150	// normalize paths
151	$path = $this->normalize($this->from.'/'.$path);
152
153	// strip shared ancestor paths
154	$shared = $this->shared($path, $this->to);
155	$path = mb_substr($path, mb_strlen($shared));
156	$to = mb_substr($this->to, mb_strlen($shared));
157
158	// add .. for every directory that needs to be traversed to new path
159	$to = str_repeat('../', count(array_filter(explode('/', $to))));
160
161	return $to.ltrim($path, '/');
162	}
163
164	/**
165	* Attempt to get the directory name from a path.
166	*
167	* @param string $path
168	*
169	* @return string
170	*/
171	protected function dirname($path)
172	{
173	if (@is_file($path)) {
174	return dirname($path);
175	}
176
177	if (@is_dir($path)) {
178	return rtrim($path, '/');
179	}
180
181	// no known file/dir, start making assumptions
182
183	// ends in / = dir
184	if (mb_substr($path, -1) === '/') {
185	return rtrim($path, '/');
186	}
187
188	// has a dot in the name, likely a file
189	if (preg_match('/.\..$/', basename($path)) !== 0) {
190	return dirname($path);
191	}
192
193	// you're on your own here!
194	return $path;
195	}
196	}
197