Assets_processing::css() - Code Metrics - Inspection of "It is 2017, let's not inline anything in CSS (even..." - nazar-pc/CleverStyle-Framework - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 6ad0d8...5eaa8a )

by Nazar

created 2017-05-08 06:09 UTC

Assets_processing::css() B

↳ Parent: Assets_processing

Complexity

Conditions	5
Paths	1

Size

Total Lines	78
Code Lines	39

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	35
CRAP Score	5

Importance

Changes

Metric	Value
cc	5
eloc	39
nc	1
nop	4
dl	0
loc	78
ccs	35
cts	35
cp	1
crap	5
rs	8.4316
c	0
b	0
f	0

How to fix Long Method

<?php
/**
 * @package   CleverStyle Framework
 * @author    Nazar Mokrynskyi <[email protected]>
 * @copyright Copyright (c) 2014-2017, Nazar Mokrynskyi
 * @license   MIT License, see license.txt
 */
namespace cs\Page;

/**
 * Class includes few methods used for processing CSS, JS and HTML files before putting into cache
 *
 * This is because CSS and HTML files may include other CSS, JS files, images, fonts and so on with absolute and relative paths.
 * Methods of this class handle all this assets, applies basic minification to CSS and JS files and produce single resulting file, nested files are also copied
 * to target directory and processed if needed.
 */
class Assets_processing {
	/**
	 * Analyses file for images, fonts and css links and include they content into single resulting css file.
	 *
	 * Supports next file extensions for possible assets:
	 * jpeg, jpe, jpg, gif, png, ttf, ttc, svg, svgz, woff, css
	 *
	 * @param string   $data                   Content of processed file
	 * @param string   $file                   Path to file, that contains specified in previous parameter content
	 * @param string   $target_directory_path  Target directory for resulting combined files
	 * @param string[] $not_embedded_resources Some resources like images and fonts might not be embedded into resulting CSS because of their size
	 *
	 * @return string    $data
	 */
	public static function css ($data, $file, $target_directory_path = PUBLIC_CACHE, &$not_embedded_resources = []) {
		$dir = dirname($file);
		/**
		 * Remove comments, tabs and new lines
		 */
		$data = preg_replace('#(/\*.*?\*/)|\t|\n|\r#s', ' ', $data);
		/**
		 * Remove unnecessary spaces
		 */
		$data = preg_replace('/\s*([,;>{}(])\s*/', '$1', $data);
		$data = preg_replace('/\s+/', ' ', $data);
		/**
		 * Return spaces required in media queries
		 */
		$data = preg_replace('/\s(and|or)\(/', ' $1 (', $data);
		/**
		 * Duplicated semicolons
		 */
		$data = preg_replace('/;+/m', ';', $data);
		/**
		 * Minify rgb colors declarations
		 */
		$data = preg_replace_callback(
			'/rgb\(([0-9,.]+)\)/i',
			function ($rgb) {
				$rgb = explode(',', $rgb[1]);
				return
					'#'.
					str_pad(dechex($rgb[0]), 2, 0, STR_PAD_LEFT).
					str_pad(dechex($rgb[1]), 2, 0, STR_PAD_LEFT).
					str_pad(dechex($rgb[2]), 2, 0, STR_PAD_LEFT);
			},
			$data
		);
		/**
		 * Minify repeated colors declarations
		 */
		$data = preg_replace('/#([0-9a-f])\1([0-9a-f])\2([0-9a-f])\3/i', '#$1$2$3', $data);
		/**
		 * Remove unnecessary zeros
		 */
		$data = preg_replace('/(\D)0\.(\d+)/i', '$1.$2', $data);
		/**
		 * Unnecessary spaces around colons (should have whitespace character after, otherwise `.class :disabled` will be handled incorrectly)
		 */
		$data = preg_replace('/\s*:\s+/', ':', $data);
		/**
		 * Assets processing
		 */
		// TODO: replace by loop, track duplicated stuff that are subject to inlining and if they appear more than once, don't inline them
		$data = preg_replace_callback(
			'/url\((.*)\)|@import\s*(?:url\()?\s*([\'"].*[\'"])\s*\)??.*;/U',
			function ($match) use ($dir, $target_directory_path, &$not_embedded_resources) {
				$path_matched = $match[2] ?? $match[1];
				$path         = trim($path_matched, '\'" ');
				$link         = explode('?', $path, 2)[0];
				if (!static::is_relative_path_and_exists($link, $dir)) {
					return $match[0];
				}
				$extension     = file_extension($link);
				$absolute_path = static::absolute_path($link, $dir);
				$content       = file_get_contents($absolute_path);
				/**
				 * Process recursively CSS imports, but ignore non embedded resources there
				 */
				if ($extension == 'css' && @$match[2]) {
					$content = static::css($content, $absolute_path, $target_directory_path);
				}
				$filename = static::file_put_contents_with_hash($target_directory_path, $extension, $content);
				if (strpos($path, '?') === false) {
					$not_embedded_resources[] = str_replace(getcwd(), '', "$target_directory_path/$filename");
				}
				return str_replace($path_matched, "'./$filename'", $match[0]);
			},
			$data
		);
		return trim($data);
	}
	/**
	 * Put `$content` into `$dir` where filename is `md5($content)` with specified extension
	 *
	 * @param string $dir
	 * @param string $extension
	 * @param string $content
	 *
	 * @return string Filename (without full path)
	 */
	protected static function file_put_contents_with_hash ($dir, $extension, $content) {
		$hash = md5($content);
		file_put_contents("$dir/$hash.$extension", $content, LOCK_EX | FILE_BINARY);
		return "$hash.$extension";
	}
	/**
	 * Simple and fast JS minification
	 *
	 * @param string $data
	 *
	 * @return string
	 */
	public static function js ($data) {
		/**
		 * Split into array of lines
		 */
		$data = explode("\n", $data);
		/**
		 * Flag that is `true` when inside comment
		 */
		$in_comment              = false;
		$continue_after_position = -1;
		foreach ($data as $index => &$current_line) {
			if ($continue_after_position >= $index) {
				continue;
			}
			$next_line = isset($data[$index + 1]) ? trim($data[$index + 1]) : '';
			/**
			 * Remove starting and trailing spaces
			 */
			$current_line = trim($current_line);
			/**
			 * Remove single-line comments
			 */
			if (mb_strpos($current_line, '//') === 0) {
				$current_line = '';
				continue;
			}
			/**
			 * Starts with multi-line comment
			 */
			if (mb_strpos($current_line, '/*') === 0) {
				$in_comment = true;
			}
			if (!$in_comment) {
				$backticks_position = strpos($current_line, '`');
				/**
				 * Handling template strings can be tricky (since they might be multi-line), so let's fast-forward to the last backticks position and continue
				 * from there
				 */
				if ($backticks_position !== false) {
					$last_item_with_backticks = array_keys(
						array_filter(
							$data,
							function ($d) {
								return strpos($d, '`') !== false;
							}
						)
					);
					$last_item_with_backticks = array_pop($last_item_with_backticks);
					if ($last_item_with_backticks > $index) {
						$continue_after_position = $last_item_with_backticks;
						continue;
					}
				}
				/**
				 * Add new line at the end if only needed
				 */
				if (static::new_line_needed($current_line, $next_line)) {
					$current_line .= "\n";
				}
				/**
				 * Single-line comment
				 */
				$current_line = preg_replace('#^\s*//[^\'"]+$#', '', $current_line);
				/**
				 * If we are not sure - just add new line afterwards
				 */
				$current_line = preg_replace('#//.*$#', "\\0\n", $current_line);
			} else {
				/**
				 * End of multi-line comment
				 */
				if (strpos($current_line, '*/') !== false) {
					$current_line = explode('*/', $current_line)[1];
					$in_comment   = false;
				} else {
					$current_line = '';
				}
			}
		}
		$data = implode('', $data);
		$data = str_replace('</script>', '<\/script>', $data);
		return trim($data, ';').';';
	}
	/**
	 * @param string $current_line
	 * @param string $next_line
	 *
	 * @return bool
	 */
	protected static function new_line_needed ($current_line, $next_line) {
		/**
		 * Set of symbols that are safe to be concatenated without new line with anything else
		 */
		$regexp = /** @lang PhpRegExp */
			'[:;,.+\-*/{}?><^\'"\[\]=&(]';
		return
			$current_line &&
			$next_line &&
			!preg_match("#$regexp\$#", $current_line) &&
			!preg_match("#^$regexp#", $next_line);
	}
	/**
	 * Analyses file for scripts and styles, combines them into resulting files in order to optimize loading process
	 * (files with combined scripts and styles will be created)
	 *
	 * @param string   $data                   Content of processed file
	 * @param string   $file                   Path to file, that contains specified in previous parameter content
	 * @param string   $target_directory_path  Target directory for resulting combined files
	 * @param bool     $vulcanization          Whether to put combined files separately or to make included assets built-in (vulcanization)
	 * @param string[] $not_embedded_resources Resources like images/fonts might not be embedded into resulting CSS because of big size or CSS/JS because of CSP
	 *
	 * @return string
	 */
	public static function html ($data, $file, $target_directory_path, $vulcanization, &$not_embedded_resources = []) {
		static::html_process_links_and_styles($data, $file, $target_directory_path, $vulcanization, $not_embedded_resources);
		static::html_process_scripts($data, $file, $target_directory_path, $vulcanization, $not_embedded_resources);
		// Removing HTML comments (those that are mostly likely comments, to avoid problems)
		$data = preg_replace_callback(
			'/^\s*<!--([^>-].*[^-])?-->/Ums',
			function ($matches) {
				return mb_strpos('--', $matches[1]) === false ? '' : $matches[0];
			},
			$data
		);
		return preg_replace("/\n+/", "\n", $data);
	}
	/**
	 * @param string   $data                   Content of processed file
	 * @param string   $file                   Path to file, that contains specified in previous parameter content
	 * @param string   $target_directory_path  Target directory for resulting combined files
	 * @param bool     $vulcanization          Whether to put combined files separately or to make included assets built-in (vulcanization)
	 * @param string[] $not_embedded_resources Resources like images/fonts might not be embedded into resulting CSS because of big size or CSS/JS because of CSP
	 */
	protected static function html_process_scripts (&$data, $file, $target_directory_path, $vulcanization, &$not_embedded_resources) {
		if (!preg_match_all('/<script(.*)<\/script>/Uims', $data, $scripts)) {
			return;
		}
		$scripts_content    = '';
		$scripts_to_replace = [];
		$dir                = dirname($file);
		foreach ($scripts[1] as $index => $script) {
			$script = explode('>', $script, 2);
			if (preg_match('/src\s*=\s*[\'"](.*)[\'"]/Uims', $script[0], $url)) {
				$url = $url[1];
				if (!static::is_relative_path_and_exists($url, $dir)) {
					continue;
				}
				$scripts_to_replace[] = $scripts[0][$index];
				$scripts_content      .= file_get_contents("$dir/$url").";\n";
			} else {
				$scripts_to_replace[] = $scripts[0][$index];
				$scripts_content      .= "$script[1];\n";
			}
		}
		$scripts_content = static::js($scripts_content);
		if (!$scripts_to_replace) {
			return;
		}
		// Remove all scripts
		$data = str_replace($scripts_to_replace, '', $data);
		/**
		 * If vulcanization is not used - put contents into separate file, and put link to it, otherwise put minified content back
		 */
		if (!$vulcanization) {
			$filename = static::file_put_contents_with_hash($target_directory_path, 'js', $scripts_content);
			// Add script with combined content file to the end
			$data                     .= "<script src=\"./$filename\"></script>";
			$not_embedded_resources[] = str_replace(getcwd(), '', "$target_directory_path/$filename");
		} else {
			// Add combined content inline script to the end
			$data .= "<script>$scripts_content</script>";
		}
	}
	/**
	 * @param string   $data                   Content of processed file
	 * @param string   $file                   Path to file, that contains specified in previous parameter content
	 * @param string   $target_directory_path  Target directory for resulting combined files
	 * @param bool     $vulcanization          Whether to put combined files separately or to make included assets built-in (vulcanization)
	 * @param string[] $not_embedded_resources Resources like images/fonts might not be embedded into resulting CSS because of big size or CSS/JS because of CSP
	 */
	protected static function html_process_links_and_styles (&$data, $file, $target_directory_path, $vulcanization, &$not_embedded_resources) {
		if (!preg_match_all('/<link(.*)>|<style(.*)<\/style>/Uims', $data, $links_and_styles)) {
			return;
		}
		$dir = dirname($file);
		foreach ($links_and_styles[1] as $index => $link) {
			/**
			 * For plain styles we do not do anything fancy besides minifying its sources (no rearrangement or anything like that)
			 */
			if (mb_strpos($links_and_styles[0][$index], '</style>') > 0) {
				$content = explode('>', $links_and_styles[2][$index], 2)[1];
				$data    = str_replace(
					$content,
					static::css($content, $file, $target_directory_path, $not_embedded_resources),
					$data
				);
				continue;
			}
			if (!static::has_relative_href($link, $url, $dir)) {
				continue;
			}
			$import = preg_match('/rel\s*=\s*[\'"]import[\'"]/Uim', $link);
			/**
			 * CSS imports are available in Polymer alongside with HTML imports
			 */
			$css_import = $import && preg_match('/type\s*=\s*[\'"]css[\'"]/Uim', $link);
			$stylesheet = preg_match('/rel\s*=\s*[\'"]stylesheet[\'"]/Uim', $link);
			/**
			 * TODO: Polymer only supports `custom-style > style`, but no `link`-based counterpart, so we can't provide CSP-compatibility in general,
			 * thus always inlining styles into HTML
			 */
			if ($css_import || $stylesheet) {
				/**
				 * If content is link to CSS file
				 */
				$css  = static::css(
					file_get_contents("$dir/$url"),
					"$dir/$url",
					$target_directory_path,
					$not_embedded_resources
				);
				$data = preg_replace(
					'/'.$links_and_styles[0][$index].'.*<template>/Uims',
					"<template><style>$css</style>",
					$data
				);
			} elseif ($import) {
				/**
				 * If content is HTML import
				 */
				$data = str_replace(
					$links_and_styles[0][$index],
					static::html(
						file_get_contents("$dir/$url"),
						"$dir/$url",
						$target_directory_path,
						$vulcanization,
						$not_embedded_resources
					),
					$data
				);
			}
		}
	}
	/**
	 * @param string $link
	 * @param string $url
	 * @param string $dir
	 *
	 * @return bool
	 */
	protected static function has_relative_href ($link, &$url, $dir) {
		$result =
			$link &&
			preg_match('/href\s*=\s*[\'"](.*)[\'"]/Uims', $link, $url);
		if ($result && static::is_relative_path_and_exists($url[1], $dir)) {
			$url = $url[1];
			return true;
		}
		return false;
	}
	/**
	 * @param string $path
	 * @param string $dir
	 *
	 * @return bool
	 */
	protected static function is_relative_path_and_exists ($path, $dir) {
		return $dir && !preg_match('#^https?://#i', $path) && file_exists(static::absolute_path($path, $dir));
	}
	/**
	 * @param string $path
	 * @param string $dir
	 *
	 * @return string
	 */
	protected static function absolute_path ($path, $dir) {
		if (strpos($path, '/') === 0) {
			return realpath(getcwd().$path);
		}
		return realpath("$dir/$path");
	}
}


1		<?php
2		/**
3		* @package CleverStyle Framework
4		* @author Nazar Mokrynskyi <[email protected]>
5		* @copyright Copyright (c) 2014-2017, Nazar Mokrynskyi
6		* @license MIT License, see license.txt
7		*/
8		namespace cs\Page;
9
10		/**
11		* Class includes few methods used for processing CSS, JS and HTML files before putting into cache
12		*
13		* This is because CSS and HTML files may include other CSS, JS files, images, fonts and so on with absolute and relative paths.
14		* Methods of this class handle all this assets, applies basic minification to CSS and JS files and produce single resulting file, nested files are also copied
15		* to target directory and processed if needed.
16		*/
17		class Assets_processing {
18		/**
19		* Analyses file for images, fonts and css links and include they content into single resulting css file.
20		*
21		* Supports next file extensions for possible assets:
22		* jpeg, jpe, jpg, gif, png, ttf, ttc, svg, svgz, woff, css
23		*
24		* @param string $data Content of processed file
25		* @param string $file Path to file, that contains specified in previous parameter content
26		* @param string $target_directory_path Target directory for resulting combined files
27		* @param string[] $not_embedded_resources Some resources like images and fonts might not be embedded into resulting CSS because of their size
28		*
29		* @return string $data
30		*/
31	10	public static function css ($data, $file, $target_directory_path = PUBLIC_CACHE, &$not_embedded_resources = []) {
32	10	$dir = dirname($file);
33		/**
34		* Remove comments, tabs and new lines
35		*/
36	10	$data = preg_replace('#(/\.?\*/)\|\t\|\n\|\r#s', ' ', $data);
37		/**
38		* Remove unnecessary spaces
39		*/
40	10	$data = preg_replace('/\s([,;>{}(])\s/', '$1', $data);
41	10	$data = preg_replace('/\s+/', ' ', $data);
42		/**
43		* Return spaces required in media queries
44		*/
45	10	$data = preg_replace('/\s(and\|or)\(/', ' $1 (', $data);
46		/**
47		* Duplicated semicolons
48		*/
49	10	$data = preg_replace('/;+/m', ';', $data);
50		/**
51		* Minify rgb colors declarations
52		*/
53	10	$data = preg_replace_callback(
54	10	'/rgb\(([0-9,.]+)\)/i',
55		function ($rgb) {
56	6	$rgb = explode(',', $rgb[1]);
57		return
58		'#'.
59	6	str_pad(dechex($rgb[0]), 2, 0, STR_PAD_LEFT).
60	6	str_pad(dechex($rgb[1]), 2, 0, STR_PAD_LEFT).
61	6	str_pad(dechex($rgb[2]), 2, 0, STR_PAD_LEFT);
62	10	},
63		$data
64		);
65		/**
66		* Minify repeated colors declarations
67		*/
68	10	$data = preg_replace('/#([0-9a-f])\1([0-9a-f])\2([0-9a-f])\3/i', '#$1$2$3', $data);
69		/**
70		* Remove unnecessary zeros
71		*/
72	10	$data = preg_replace('/(\D)0\.(\d+)/i', '$1.$2', $data);
73		/**
74		* Unnecessary spaces around colons (should have whitespace character after, otherwise `.class :disabled` will be handled incorrectly)
75		*/
76	10	$data = preg_replace('/\s*:\s+/', ':', $data);
77		/**
78		* Assets processing
79		*/
80		// TODO: replace by loop, track duplicated stuff that are subject to inlining and if they appear more than once, don't inline them
81	10	$data = preg_replace_callback(
82	10	'/url\((.)\)\|@import\s(?:url\()?\s([\'"].[\'"])\s\)??.;/U',
83		function ($match) use ($dir, $target_directory_path, &$not_embedded_resources) {
84	10	$path_matched = $match[2] ?? $match[1];
85	10	$path = trim($path_matched, '\'" ');
86	10	$link = explode('?', $path, 2)[0];
87	10	if (!static::is_relative_path_and_exists($link, $dir)) {
88	4	return $match[0];
89		}
90	10	$extension = file_extension($link);
91	10	$absolute_path = static::absolute_path($link, $dir);
92	10	$content = file_get_contents($absolute_path);
93		/**
94		* Process recursively CSS imports, but ignore non embedded resources there
95		*/
96	10	if ($extension == 'css' && @$match[2]) {
97	6	$content = static::css($content, $absolute_path, $target_directory_path);
98		}
99	10	$filename = static::file_put_contents_with_hash($target_directory_path, $extension, $content);
100	10	if (strpos($path, '?') === false) {
101	6	$not_embedded_resources[] = str_replace(getcwd(), '', "$target_directory_path/$filename");
102		}
103	10	return str_replace($path_matched, "'./$filename'", $match[0]);
104	10	},
105		$data
106		);
107	10	return trim($data);
108		}
109		/**
110		* Put `$content` into `$dir` where filename is `md5($content)` with specified extension
111		*
112		* @param string $dir
113		* @param string $extension
114		* @param string $content
115		*
116		* @return string Filename (without full path)
117		*/
118	10	protected static function file_put_contents_with_hash ($dir, $extension, $content) {
119	10	$hash = md5($content);
120	10	file_put_contents("$dir/$hash.$extension", $content, LOCK_EX \| FILE_BINARY);
121	10	return "$hash.$extension";
122		}
123		/**
124		* Simple and fast JS minification
125		*
126		* @param string $data
127		*
128		* @return string
129		*/
130	10	public static function js ($data) {
131		/**
132		* Split into array of lines
133		*/
134	10	$data = explode("\n", $data);
135		/**
136		* Flag that is `true` when inside comment
137		*/
138	10	$in_comment = false;
139	10	$continue_after_position = -1;
140	10	foreach ($data as $index => &$current_line) {
141	10	if ($continue_after_position >= $index) {
142	2	continue;
143		}
144	10	$next_line = isset($data[$index + 1]) ? trim($data[$index + 1]) : '';
145		/**
146		* Remove starting and trailing spaces
147		*/
148	10	$current_line = trim($current_line);
149		/**
150		* Remove single-line comments
151		*/
152	10	if (mb_strpos($current_line, '//') === 0) {
153	10	$current_line = '';
154	10	continue;
155		}
156		/**
157		* Starts with multi-line comment
158		*/
159	10	if (mb_strpos($current_line, '/*') === 0) {
160	10	$in_comment = true;
161		}
162	10	if (!$in_comment) {
163	10	$backticks_position = strpos($current_line, '`');
164		/**
165		* Handling template strings can be tricky (since they might be multi-line), so let's fast-forward to the last backticks position and continue
166		* from there
167		*/
168	10	if ($backticks_position !== false) {
169	6	$last_item_with_backticks = array_keys(
170		array_filter(
171		$data,
172		function ($d) {
173	6	return strpos($d, '`') !== false;
174	6	}
175		)
176		);
177	6	$last_item_with_backticks = array_pop($last_item_with_backticks);
178	6	if ($last_item_with_backticks > $index) {
179	2	$continue_after_position = $last_item_with_backticks;
180	2	continue;
181		}
182		}
183		/**
184		* Add new line at the end if only needed
185		*/
186	10	if (static::new_line_needed($current_line, $next_line)) {
187	6	$current_line .= "\n";
188		}
189		/**
190		* Single-line comment
191		*/
192	10	$current_line = preg_replace('#^\s*//[^\'"]+$#', '', $current_line);
193		/**
194		* If we are not sure - just add new line afterwards
195		*/
196	10	$current_line = preg_replace('#//.*$#', "\\0\n", $current_line);
197		} else {
198		/**
199		* End of multi-line comment
200		*/
201	10	if (strpos($current_line, '*/') !== false) {
202	10	$current_line = explode('*/', $current_line)[1];
203	10	$in_comment = false;
204		} else {
205	10	$current_line = '';
206		}
207		}
208		}
209	10	$data = implode('', $data);
210	10	$data = str_replace('</script>', '<\/script>', $data);
211	10	return trim($data, ';').';';
212		}
213		/**
214		* @param string $current_line
215		* @param string $next_line
216		*
217		* @return bool
218		*/
219	10	protected static function new_line_needed ($current_line, $next_line) {
220		/**
221		* Set of symbols that are safe to be concatenated without new line with anything else
222		*/
223		$regexp = /** @lang PhpRegExp */
224	10	'[:;,.+\-*/{}?><^\'"\[\]=&(]';
225		return
226	10	$current_line &&
227	10	$next_line &&
228	10	!preg_match("#$regexp\$#", $current_line) &&
229	10	!preg_match("#^$regexp#", $next_line);
230		}
231		/**
232		* Analyses file for scripts and styles, combines them into resulting files in order to optimize loading process
233		* (files with combined scripts and styles will be created)
234		*
235		* @param string $data Content of processed file
236		* @param string $file Path to file, that contains specified in previous parameter content
237		* @param string $target_directory_path Target directory for resulting combined files
238		* @param bool $vulcanization Whether to put combined files separately or to make included assets built-in (vulcanization)
239		* @param string[] $not_embedded_resources Resources like images/fonts might not be embedded into resulting CSS because of big size or CSS/JS because of CSP
240		*
241		* @return string
242		*/
243	8	public static function html ($data, $file, $target_directory_path, $vulcanization, &$not_embedded_resources = []) {
244	8	static::html_process_links_and_styles($data, $file, $target_directory_path, $vulcanization, $not_embedded_resources);
245	8	static::html_process_scripts($data, $file, $target_directory_path, $vulcanization, $not_embedded_resources);
246		// Removing HTML comments (those that are mostly likely comments, to avoid problems)
247	8	$data = preg_replace_callback(
248	8	'/^\s<!--([^>-].[^-])?-->/Ums',
249	8	function ($matches) {
250	8	return mb_strpos('--', $matches[1]) === false ? '' : $matches[0];
251	8	},
252		$data
253		);
254	8	return preg_replace("/\n+/", "\n", $data);
255		}
256		/**
257		* @param string $data Content of processed file
258		* @param string $file Path to file, that contains specified in previous parameter content
259		* @param string $target_directory_path Target directory for resulting combined files
260		* @param bool $vulcanization Whether to put combined files separately or to make included assets built-in (vulcanization)
261		* @param string[] $not_embedded_resources Resources like images/fonts might not be embedded into resulting CSS because of big size or CSS/JS because of CSP
262		*/
263	8	protected static function html_process_scripts (&$data, $file, $target_directory_path, $vulcanization, &$not_embedded_resources) {
264	8	if (!preg_match_all('/<script(.*)<\/script>/Uims', $data, $scripts)) {
265	8	return;
266		}
267	8	$scripts_content = '';
268	8	$scripts_to_replace = [];
269	8	$dir = dirname($file);
270	8	foreach ($scripts[1] as $index => $script) {
271	8	$script = explode('>', $script, 2);
272	8	if (preg_match('/src\s=\s[\'"](.*)[\'"]/Uims', $script[0], $url)) {
273	8	$url = $url[1];
274	8	if (!static::is_relative_path_and_exists($url, $dir)) {
275	4	continue;
276		}
277	8	$scripts_to_replace[] = $scripts[0][$index];
278	8	$scripts_content .= file_get_contents("$dir/$url").";\n";
279		} else {
280	8	$scripts_to_replace[] = $scripts[0][$index];
281	8	$scripts_content .= "$script[1];\n";
282		}
283		}
284	8	$scripts_content = static::js($scripts_content);
285	8	if (!$scripts_to_replace) {
286	4	return;
287		}
288		// Remove all scripts
289	8	$data = str_replace($scripts_to_replace, '', $data);
290		/**
291		* If vulcanization is not used - put contents into separate file, and put link to it, otherwise put minified content back
292		*/
293	8	if (!$vulcanization) {
294	2	$filename = static::file_put_contents_with_hash($target_directory_path, 'js', $scripts_content);
295		// Add script with combined content file to the end
296	2	$data .= "<script src=\"./$filename\"></script>";
297	2	$not_embedded_resources[] = str_replace(getcwd(), '', "$target_directory_path/$filename");
298		} else {
299		// Add combined content inline script to the end
300	6	$data .= "<script>$scripts_content</script>";
301		}
302	8	}
303		/**
304		* @param string $data Content of processed file
305		* @param string $file Path to file, that contains specified in previous parameter content
306		* @param string $target_directory_path Target directory for resulting combined files
307		* @param bool $vulcanization Whether to put combined files separately or to make included assets built-in (vulcanization)
308		* @param string[] $not_embedded_resources Resources like images/fonts might not be embedded into resulting CSS because of big size or CSS/JS because of CSP
309		*/
310	8	protected static function html_process_links_and_styles (&$data, $file, $target_directory_path, $vulcanization, &$not_embedded_resources) {
311	8	if (!preg_match_all('/<link(.)>\|<style(.)<\/style>/Uims', $data, $links_and_styles)) {
312	8	return;
313		}
314	8	$dir = dirname($file);
315	8	foreach ($links_and_styles[1] as $index => $link) {
316		/**
317		* For plain styles we do not do anything fancy besides minifying its sources (no rearrangement or anything like that)
318		*/
319	8	if (mb_strpos($links_and_styles[0][$index], '</style>') > 0) {
320	8	$content = explode('>', $links_and_styles[2][$index], 2)[1];
321	8	$data = str_replace(
322		$content,
323	8	static::css($content, $file, $target_directory_path, $not_embedded_resources),
324		$data
325		);
326	8	continue;
327		}
328	8	if (!static::has_relative_href($link, $url, $dir)) {
329	4	continue;
330		}
331	8	$import = preg_match('/rel\s=\s[\'"]import[\'"]/Uim', $link);
332		/**
333		* CSS imports are available in Polymer alongside with HTML imports
334		*/
335	8	$css_import = $import && preg_match('/type\s=\s[\'"]css[\'"]/Uim', $link);
336	8	$stylesheet = preg_match('/rel\s=\s[\'"]stylesheet[\'"]/Uim', $link);
337		/**
338		* TODO: Polymer only supports `custom-style > style`, but no `link`-based counterpart, so we can't provide CSP-compatibility in general,
339		* thus always inlining styles into HTML
340		*/
341	8	if ($css_import \|\| $stylesheet) {
342		/**
343		* If content is link to CSS file
344		*/
345	8	$css = static::css(
346	8	file_get_contents("$dir/$url"),
347	8	"$dir/$url",
348		$target_directory_path,
349		$not_embedded_resources
350		);
351	8	$data = preg_replace(
352	8	'/'.$links_and_styles[0][$index].'.*<template>/Uims',
353	8	"<template><style>$css</style>",
354		$data
355		);
356	4	} elseif ($import) {
357		/**
358		* If content is HTML import
359		*/
360	4	$data = str_replace(
361	4	$links_and_styles[0][$index],
362	4	static::html(
363	4	file_get_contents("$dir/$url"),
364	8	"$dir/$url",
365		$target_directory_path,
366		$vulcanization,
367		$not_embedded_resources
368		),
369		$data
370		);
371		}
372		}
373	8	}
374		/**
375		* @param string $link
376		* @param string $url
377		* @param string $dir
378		*
379		* @return bool
380		*/
381	8	protected static function has_relative_href ($link, &$url, $dir) {
382		$result =
383	8	$link &&
384	8	preg_match('/href\s=\s[\'"](.*)[\'"]/Uims', $link, $url);
385	8	if ($result && static::is_relative_path_and_exists($url[1], $dir)) {
386	8	$url = $url[1];
387	8	return true;
388		}
389	4	return false;
390		}
391		/**
392		* @param string $path
393		* @param string $dir
394		*
395		* @return bool
396		*/
397	10	protected static function is_relative_path_and_exists ($path, $dir) {
398	10	return $dir && !preg_match('#^https?://#i', $path) && file_exists(static::absolute_path($path, $dir));
399		}
400		/**
401		* @param string $path
402		* @param string $dir
403		*
404		* @return string
405		*/
406	10	protected static function absolute_path ($path, $dir) {
407	10	if (strpos($path, '/') === 0) {
408	6	return realpath(getcwd().$path);
409		}
410	10	return realpath("$dir/$path");
411		}
412		}
413

nazar-pc / CleverStyle-Framework

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