CSS::expandImports() - Code Metrics - Inspection of "Fix phpunit version" - rmrevin/yii2-minify-view - Measure and Improve Code Quality continuously with Scrutinizer

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by Revin

created 2017-12-22 20:19 UTC

CSS::expandImports() B

↳ Parent: CSS

Complexity

Conditions	6
Paths	6

Size

Total Lines	28
Code Lines	14

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	13
CRAP Score	6.2373

Importance

Changes

Metric	Value
dl	0
loc	28
ccs	13
cts	16
cp	0.8125
rs	8.439
c	0
b	0
f	0
cc	6
eloc	14
nc	6
nop	1
crap	6.2373

<?php
/**
 * CSS.php
 * @author Revin Roman
 * @link https://rmrevin.com
 */

namespace rmrevin\yii\minify\components;

use yii\helpers\Html;

/**
 * Class CSS
 * @package rmrevin\yii\minify\components
 */
class CSS extends MinifyComponent
{

    public function export()
    {
        $cssFiles = $this->view->cssFiles;

        $this->view->cssFiles = [];

        $toMinify = [];

        foreach ($cssFiles as $file => $html) {
            if ($this->thisFileNeedMinify($file, $html)) {
                if ($this->view->concatCss) {
                    $toMinify[$file] = $html;
                } else {
                    $this->process([$file => $html]);
                }
            } else {
                if (!empty($toMinify)) {
                    $this->process($toMinify);

                    $toMinify = [];
                }

                $this->view->cssFiles[$file] = $html;
            }
        }

        if (!empty($toMinify)) {
            $this->process($toMinify);
        }

        unset($toMinify);
    }

    /**
     * @param array $files
     */
    protected function process(array $files)
    {
        $minifyPath = $this->view->minifyPath;
        $hash = $this->_getSummaryFilesHash($files);

        $resultFile = $minifyPath . DIRECTORY_SEPARATOR . $hash . '.css';

        if (!file_exists($resultFile)) {
            $css = '';

            foreach ($files as $file => $html) {
                $cacheKey = $this->buildCacheKey($file);

                $content = $this->getFromCache($cacheKey);

                if (false !== $content) {
                    $css .= $content;
                    continue;
                }

                $path = dirname($file);
                $file = $this->getAbsoluteFilePath($file);

                $content = '';

                if (!file_exists($file)) {
                    \Yii::warning(sprintf('Asset file not found `%s`', $file), __METHOD__);
                } elseif (!is_readable($file)) {
                    \Yii::warning(sprintf('Asset file not readable `%s`', $file), __METHOD__);
                } else {
                    $content = file_get_contents($file);
                }

                $result = [];

                preg_match_all('|url\(([^)]+)\)|i', $content, $m);

                if (isset($m[0])) {
                    foreach ((array)$m[0] as $k => $v) {
                        if (in_array(strpos($m[1][$k], 'data:'), [0, 1], true)) {
                            continue;
                        }

                        $url = str_replace(['\'', '"'], '', $m[1][$k]);

                        if ($this->isUrl($url)) {
                            $result[$m[1][$k]] = $url;
                        } else {
                            $result[$m[1][$k]] = $path . '/' . $url;
                        }
                    }

                    $content = strtr($content, $result);
                }

                $this->expandImports($content);

                $this->convertMediaTypeAttributeToMediaQuery($html, $content);

                if ($this->view->minifyCss) {
                    $content = \Minify_CSSmin::minify($content);
                }

                $this->saveToCache($cacheKey, $content);

                $css .= $content;
            }

            $charsets = $this->collectCharsets($css);
            $imports = $this->collectImports($css);
            $fonts = $this->collectFonts($css);

            if (false !== $this->view->forceCharset) {
                $charsets = '@charset "' . (string)$this->view->forceCharset . '";' . "\n";
            }

            file_put_contents($resultFile, $charsets . $imports . $fonts . $css);

            if (false !== $this->view->fileMode) {
                @chmod($resultFile, $this->view->fileMode);
            }
        }

        $file = $this->prepareResultFile($resultFile);

        $this->view->cssFiles[$file] = Html::cssFile($file);
    }

    /**
     * @param string $code
     */
    protected function expandImports(&$code)
    {
        if (true !== $this->view->expandImports) {
            return;
        }

        preg_match_all('|\@import\s([^;]+);|i', str_replace('&amp;', '&', $code), $m);

        if (!isset($m[0])) {
            return;
        }

        foreach ((array)$m[0] as $k => $v) {
            $importUrl = $m[1][$k];

            if (empty($importUrl)) {
                continue;
            }

            $importContent = $this->_getImportContent($importUrl);

            if (null === $importContent) {
                continue;
            }

            $code = str_replace($m[0][$k], $importContent, $code);
        }
    }

    /**
     * @param string $code
     * @return string
     */
    protected function collectCharsets(&$code)
    {
        return $this->_collect($code, '|\@charset[^;]+|is', function ($string) {
            return $string . ';';
        });
    }

    /**
     * @param string $code
     * @return string
     */
    protected function collectImports(&$code)
    {
        return $this->_collect($code, '|\@import[^;]+|is', function ($string) {
            return $string . ';';
        });
    }

    /**
     * @param string $code
     * @return string
     */
    protected function collectFonts(&$code)
    {
        return $this->_collect($code, '|\@font-face\{[^}]+\}|is', function ($string) {
            return $string;
        });
    }

    /**
     * @param string $code
     * @param string $pattern
     * @param callable $handler
     * @return string
     */
    protected function _collect(&$code, $pattern, $handler)
    {
        $result = '';

        preg_match_all($pattern, $code, $m);

        foreach ((array)$m[0] as $string) {
            $string = $handler($string);
            $code = str_replace($string, '', $code);

            $result .= $string . PHP_EOL;
        }

        return $result;
    }

    /**
     * @param string|null $url
     * @return null|string
     */
    protected function _getImportContent($url)
    {
        if (null === $url || '' === $url) {
            return null;
        }

        if (0 !== mb_strpos($url, 'url(')) {
            return null;
        }

        $currentUrl = str_replace(['url(\'', 'url("', 'url(', '\')', '")', ')'], '', $url);

        if (0 === mb_strpos($currentUrl, '//')) {
            $currentUrl = preg_replace('|^//|', 'http://', $currentUrl, 1);
        }

        if (null === $currentUrl || '' === $currentUrl) {
            return null;
        }

        if (!in_array(mb_substr($currentUrl, 0, 4), ['http', 'ftp:'], true)) {
            /** @noinspection ExceptionsAnnotatingAndHandlingInspection */
            $currentUrl = $this->view->basePath . $currentUrl;
        }

        if (false === $currentUrl) {
            return null;
        }

        return $this->_fetchImportFileContent($currentUrl);
    }

    /**
     * @param string $url
     * @return bool|string
     */
    protected function _fetchImportFileContent($url)
    {
        $context = [
            'ssl' => [
                'verify_peer'      => false,
                'verify_peer_name' => false,
            ],
        ];

        return file_get_contents($url, null, stream_context_create($context));
    }

    /**
     * If the <link> tag has a media="type" attribute, wrap the content in an equivalent media query
     * @param string $html HTML of the link tag
     * @param string $content CSS content
     * @return string $content CSS content wrapped with media query, if applicable
     */
    protected function convertMediaTypeAttributeToMediaQuery($html, &$content)
    {
        if (preg_match('/\bmedia=(["\'])([^"\']+)\1/i', $html, $m) && isset($m[2]) && $m[2] !== 'all') {
            $content = '@media ' . $m[2] . ' {' . $content . '}';
        }
    }
}


1		<?php
2		/**
3		* CSS.php
4		* @author Revin Roman
5		* @link https://rmrevin.com
6		*/
7
8		namespace rmrevin\yii\minify\components;
9
10		use yii\helpers\Html;
11
12		/**
13		* Class CSS
14		* @package rmrevin\yii\minify\components
15		*/
16		class CSS extends MinifyComponent
17		{
18
19	9	public function export()
20		{
21	9	$cssFiles = $this->view->cssFiles;
22
23	9	$this->view->cssFiles = [];
24
25	9	$toMinify = [];
26
27	9	foreach ($cssFiles as $file => $html) {
28	8	if ($this->thisFileNeedMinify($file, $html)) {
29	8	if ($this->view->concatCss) {
30	8	$toMinify[$file] = $html;
31	8	} else {
32		$this->process([$file => $html]);
33		}
34	8	} else {
35	2	if (!empty($toMinify)) {
36	2	$this->process($toMinify);
37
38	2	$toMinify = [];
39	2	}
40
41	2	$this->view->cssFiles[$file] = $html;
42		}
43	9	}
44
45	9	if (!empty($toMinify)) {
46	6	$this->process($toMinify);
47	6	}
48
49	9	unset($toMinify);
50	9	}
51
52		/**
53		* @param array $files
54		*/
55	8	protected function process(array $files)
56		{
57	8	$minifyPath = $this->view->minifyPath;
58	8	$hash = $this->_getSummaryFilesHash($files);
59
60	8	$resultFile = $minifyPath . DIRECTORY_SEPARATOR . $hash . '.css';
61
62	8	if (!file_exists($resultFile)) {
63	8	$css = '';
64
65	8	foreach ($files as $file => $html) {
66	8	$cacheKey = $this->buildCacheKey($file);
67
68	8	$content = $this->getFromCache($cacheKey);
69
70	8	if (false !== $content) {
71		$css .= $content;
72		continue;
73		}
74
75	8	$path = dirname($file);
76	8	$file = $this->getAbsoluteFilePath($file);
77
78	8	$content = '';
79
80	8	if (!file_exists($file)) {
81		\Yii::warning(sprintf('Asset file not found `%s`', $file), __METHOD__);
82	8	} elseif (!is_readable($file)) {
83		\Yii::warning(sprintf('Asset file not readable `%s`', $file), __METHOD__);
84		} else {
85	8	$content = file_get_contents($file);
86		}
87
88	8	$result = [];
89
90	8	preg_match_all('\|url\(([^)]+)\)\|i', $content, $m);
91
92	8	if (isset($m[0])) {
93	8	foreach ((array)$m[0] as $k => $v) {
94	6	if (in_array(strpos($m[1][$k], 'data:'), [0, 1], true)) {
95	6	continue;
96		}
97
98	6	$url = str_replace(['\'', '"'], '', $m[1][$k]);
99
100	6	if ($this->isUrl($url)) {
101	6	$result[$m[1][$k]] = $url;
102	6	} else {
103	6	$result[$m[1][$k]] = $path . '/' . $url;
104		}
105	8	}
106
107	8	$content = strtr($content, $result);
108	8	}
109
110	8	$this->expandImports($content);
111
112	8	$this->convertMediaTypeAttributeToMediaQuery($html, $content);
113
114	8	if ($this->view->minifyCss) {
115	8	$content = \Minify_CSSmin::minify($content);
116	8	}
117
118	8	$this->saveToCache($cacheKey, $content);
119
120	8	$css .= $content;
121	8	}
122
123	8	$charsets = $this->collectCharsets($css);
124	8	$imports = $this->collectImports($css);
125	8	$fonts = $this->collectFonts($css);
126
127	8	if (false !== $this->view->forceCharset) {
128	7	$charsets = '@charset "' . (string)$this->view->forceCharset . '";' . "\n";
129	7	}
130
131	8	file_put_contents($resultFile, $charsets . $imports . $fonts . $css);
132
133	8	if (false !== $this->view->fileMode) {
134	8	@chmod($resultFile, $this->view->fileMode);
135	8	}
136	8	}
137
138	8	$file = $this->prepareResultFile($resultFile);
139
140	8	$this->view->cssFiles[$file] = Html::cssFile($file);
141	8	}
142
143		/**
144		* @param string $code
145		*/
146	8	protected function expandImports(&$code)
147		{
148	8	if (true !== $this->view->expandImports) {
149	1	return;
150		}
151
152	7	preg_match_all('\|\@import\s([^;]+);\|i', str_replace('&', '&', $code), $m);
153
154	7	if (!isset($m[0])) {
155		return;
156		}
157
158	7	foreach ((array)$m[0] as $k => $v) {
159	5	$importUrl = $m[1][$k];
160
161	5	if (empty($importUrl)) {
162		continue;
163		}
164
165	5	$importContent = $this->_getImportContent($importUrl);
166
167	5	if (null === $importContent) {
168		continue;
169		}
170
171	5	$code = str_replace($m[0][$k], $importContent, $code);
172	7	}
173	7	}
174
175		/**
176		* @param string $code
177		* @return string
178		*/
179	8	protected function collectCharsets(&$code)
180		{
181		return $this->_collect($code, '\|\@charset[^;]+\|is', function ($string) {
182		return $string . ';';
183	8	});
184		}
185
186		/**
187		* @param string $code
188		* @return string
189		*/
190	8	protected function collectImports(&$code)
191		{
192		return $this->_collect($code, '\|\@import[^;]+\|is', function ($string) {
193	1	return $string . ';';
194	8	});
195		}
196
197		/**
198		* @param string $code
199		* @return string
200		*/
201		protected function collectFonts(&$code)
202		{
203	8	return $this->_collect($code, '\|\@font-face\{[^}]+\}\|is', function ($string) {
204	5	return $string;
205	8	});
206		}
207
208		/**
209		* @param string $code
210		* @param string $pattern
211		* @param callable $handler
212		* @return string
213		*/
214	8	protected function _collect(&$code, $pattern, $handler)
215		{
216	8	$result = '';
217
218	8	preg_match_all($pattern, $code, $m);
219
220	8	foreach ((array)$m[0] as $string) {
221	6	$string = $handler($string);
222	6	$code = str_replace($string, '', $code);
223
224	6	$result .= $string . PHP_EOL;
225	8	}
226
227	8	return $result;
228		}
229
230		/**
231		* @param string\|null $url
232		* @return null\|string
233		*/
234	5	protected function _getImportContent($url)
235		{
236	5	if (null === $url \|\| '' === $url) {
237		return null;
238		}
239
240	5	if (0 !== mb_strpos($url, 'url(')) {
241		return null;
242		}
243
244	5	$currentUrl = str_replace(['url(\'', 'url("', 'url(', '\')', '")', ')'], '', $url);
245
246	5	if (0 === mb_strpos($currentUrl, '//')) {
247	5	$currentUrl = preg_replace('\|^//\|', 'http://', $currentUrl, 1);
248	5	}
249
250	5	if (null === $currentUrl \|\| '' === $currentUrl) {
251		return null;
252		}
253
254	5	if (!in_array(mb_substr($currentUrl, 0, 4), ['http', 'ftp:'], true)) {
255		/** @noinspection ExceptionsAnnotatingAndHandlingInspection */
256	5	$currentUrl = $this->view->basePath . $currentUrl;
257	5	}
258
259	5	if (false === $currentUrl) {
260		return null;
261		}
262
263	5	return $this->_fetchImportFileContent($currentUrl);
264		}
265
266		/**
267		* @param string $url
268		* @return bool\|string
269		*/
270	5	protected function _fetchImportFileContent($url)
271		{
272		$context = [
273		'ssl' => [
274	5	'verify_peer' => false,
275	5	'verify_peer_name' => false,
276	5	],
277	5	];
278
279	5	return file_get_contents($url, null, stream_context_create($context));
280		}
281
282		/**
283		* If the <link> tag has a media="type" attribute, wrap the content in an equivalent media query
284		* @param string $html HTML of the link tag
285		* @param string $content CSS content
286		* @return string $content CSS content wrapped with media query, if applicable
287		*/
288	8	protected function convertMediaTypeAttributeToMediaQuery($html, &$content)
289		{
290	8	if (preg_match('/\bmedia=(["\'])([^"\']+)\1/i', $html, $m) && isset($m[2]) && $m[2] !== 'all') {
291	1	$content = '@media ' . $m[2] . ' {' . $content . '}';
292	1	}
293	8	}
294		}
295

rmrevin / yii2-minify-view

Push — master ( a3536c...4068f0 )

CSS::expandImports() B

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