Code Coverage |
||||||||||
Lines |
Functions and Methods |
Classes and Traits |
||||||||
| Total | |
100.00% |
125 / 125 |
|
100.00% |
4 / 4 |
CRAP | |
100.00% |
1 / 1 |
| Minify | |
100.00% |
125 / 125 |
|
100.00% |
4 / 4 |
23 | |
100.00% |
1 / 1 |
| all | |
100.00% |
22 / 22 |
|
100.00% |
1 / 1 |
15 | |||
| html | |
100.00% |
47 / 47 |
|
100.00% |
1 / 1 |
3 | |||
| css | |
100.00% |
34 / 34 |
|
100.00% |
1 / 1 |
3 | |||
| js | |
100.00% |
22 / 22 |
|
100.00% |
1 / 1 |
2 | |||
| 1 | <?php declare(strict_types=1); |
| 2 | /* |
| 3 | * This file is part of Aplus Framework Minify Library. |
| 4 | * |
| 5 | * (c) Natan Felles <natanfelles@gmail.com> |
| 6 | * |
| 7 | * For the full copyright and license information, please view the LICENSE |
| 8 | * file that was distributed with this source code. |
| 9 | */ |
| 10 | namespace Framework\Minify; |
| 11 | |
| 12 | use DOMDocument; |
| 13 | |
| 14 | /** |
| 15 | * Class Minify. |
| 16 | * |
| 17 | * @see https://github.com/terrylinooo/CodeIgniter-Minifier |
| 18 | * |
| 19 | * @package minify |
| 20 | */ |
| 21 | class Minify |
| 22 | { |
| 23 | /** |
| 24 | * Minify all contents, optionally can disable any. |
| 25 | * |
| 26 | * Make preference to use html() if you have not css and js code and have HTML5 tags. |
| 27 | * |
| 28 | * @param string $contents |
| 29 | * @param bool $enableHtml |
| 30 | * @param bool $enableJs |
| 31 | * @param bool $enableCss |
| 32 | * |
| 33 | * @return string |
| 34 | */ |
| 35 | public static function all( |
| 36 | string $contents, |
| 37 | bool $enableHtml = true, |
| 38 | bool $enableJs = true, |
| 39 | bool $enableCss = true |
| 40 | ) : string { |
| 41 | $contents = \trim($contents); |
| 42 | if ($contents && ! ( ! $enableHtml && ! $enableCss && ! $enableJs)) { |
| 43 | if ($enableJs || $enableCss) { |
| 44 | // You need php-xml to support PHP DOM |
| 45 | $dom = new DOMDocument(); |
| 46 | // Prevent DOMDocument::loadHTML error |
| 47 | $useErrors = \libxml_use_internal_errors(true); |
| 48 | $dom->loadHTML($contents, \LIBXML_HTML_NOIMPLIED | \LIBXML_HTML_NODEFDTD); |
| 49 | if ($enableJs) { |
| 50 | // Get all script Tags and minify them |
| 51 | $scripts = $dom->getElementsByTagName('script'); |
| 52 | foreach ($scripts as $script) { |
| 53 | if ( ! empty($script->nodeValue)) { |
| 54 | $script->nodeValue = static::js($script->nodeValue); |
| 55 | } |
| 56 | } |
| 57 | } |
| 58 | if ($enableCss) { |
| 59 | // Get all style Tags and minify them |
| 60 | $styles = $dom->getElementsByTagName('style'); |
| 61 | foreach ($styles as $style) { |
| 62 | if ( ! empty($style->nodeValue)) { |
| 63 | $style->nodeValue = static::css($style->nodeValue); |
| 64 | } |
| 65 | } |
| 66 | } |
| 67 | // @phpstan-ignore-next-line |
| 68 | $newContents = $enableHtml ? static::html($dom->saveHTML()) : $dom->saveHTML(); |
| 69 | \libxml_use_internal_errors($useErrors); |
| 70 | unset($dom); |
| 71 | } elseif ($enableHtml) { |
| 72 | $newContents = static::html($contents); |
| 73 | } |
| 74 | } |
| 75 | return \trim($newContents ?? $contents); // @phpstan-ignore-line |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * Minify HTML. |
| 80 | * |
| 81 | * @param string $input |
| 82 | * |
| 83 | * @see https://github.com/mecha-cms/mecha-cms/blob/master/engine/kernel/converter.php |
| 84 | * |
| 85 | * @return string |
| 86 | * |
| 87 | * @author Taufik Nurrohman |
| 88 | * @license GPL version 3 License Copyright |
| 89 | */ |
| 90 | public static function html(string $input) : string |
| 91 | { |
| 92 | $input = \trim($input); |
| 93 | if (empty($input)) { |
| 94 | return $input; |
| 95 | } |
| 96 | // Remove extra white-space(s) between HTML attribute(s) |
| 97 | $input = \preg_replace_callback( |
| 98 | '#<([^\/\s<>!]+)(?:\s+([^<>]*?)\s*|\s*)(\/?)>#s', |
| 99 | static function ($matches) { |
| 100 | return '<' . $matches[1] . \preg_replace( |
| 101 | '#([^\s=]+)(\=([\'"]?)(.*?)\3)?(\s+|$)#s', |
| 102 | ' $1$2', |
| 103 | $matches[2] |
| 104 | ) . $matches[3] . '>'; |
| 105 | }, |
| 106 | \str_replace("\r", '', $input) |
| 107 | ); |
| 108 | // Minify inline CSS declaration(s) |
| 109 | if (\str_contains($input, ' style=')) { |
| 110 | $input = \preg_replace_callback( |
| 111 | '#<([^<]+?)\s+style=([\'"])(.*?)\2(?=[\/\s>])#s', |
| 112 | static function ($matches) { |
| 113 | return '<' . $matches[1] . ' style=' . $matches[2] . static::css($matches[3]) . $matches[2]; |
| 114 | }, |
| 115 | $input |
| 116 | ); |
| 117 | } |
| 118 | return \preg_replace([ |
| 119 | // t = text |
| 120 | // o = tag open |
| 121 | // c = tag close |
| 122 | // Keep important white-space(s) after self-closing HTML tag(s) |
| 123 | '#<(img|input)(>| .*?>)#s', |
| 124 | // Remove a line break and two or more white-space(s) between tag(s) |
| 125 | '#(<!--.*?-->)|(>)(?:\n*|\s{2,})(<)|^\s*|\s*$#s', |
| 126 | '#(<!--.*?-->)|(?<!\>)\s+(<\/.*?>)|(<[^\/]*?>)\s+(?!\<)#s', |
| 127 | // t+c || o+t |
| 128 | '#(<!--.*?-->)|(<[^\/]*?>)\s+(<[^\/]*?>)|(<\/.*?>)\s+(<\/.*?>)#s', |
| 129 | // o+o || c+c |
| 130 | '#(<!--.*?-->)|(<\/.*?>)\s+(\s)(?!\<)|(?<!\>)\s+(\s)(<[^\/]*?\/?>)|(<[^\/]*?\/?>)\s+(\s)(?!\<)#s', |
| 131 | // c+t || t+o || o+t -- separated by long white-space(s) |
| 132 | '#(<!--.*?-->)|(<[^\/]*?>)\s+(<\/.*?>)#s', |
| 133 | // empty tag |
| 134 | '#<(img|input)(>| .*?>)<\/\1\x1A>#s', |
| 135 | // reset previous fix |
| 136 | '#( ) (?![<\s])#', |
| 137 | // clean up ... |
| 138 | // Force line-break with ` ` or `
` |
| 139 | '#&\#(?:10|xa);#', |
| 140 | // Force white-space with ` ` or ` ` |
| 141 | '#&\#(?:32|x20);#', |
| 142 | // Remove HTML comment(s) except IE comment(s) |
| 143 | '#\s*<!--(?!\[if\s).*?-->\s*|(?<!\>)\n+(?=\<[^!])#s', |
| 144 | ], [ |
| 145 | "<$1$2</$1\x1A>", |
| 146 | '$1$2$3', |
| 147 | '$1$2$3', |
| 148 | '$1$2$3$4$5', |
| 149 | '$1$2$3$4$5$6$7', |
| 150 | '$1$2$3', |
| 151 | '<$1$2', |
| 152 | '$1 ', |
| 153 | "\n", |
| 154 | ' ', |
| 155 | '', |
| 156 | ], $input); |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * Minify CSS. |
| 161 | * |
| 162 | * @param string $input |
| 163 | * |
| 164 | * @see http://ideone.com/Q5USEF + improvement(s) |
| 165 | * |
| 166 | * @return string |
| 167 | * |
| 168 | * @author Unknown, improved by Taufik Nurrohman |
| 169 | * @license GPL version 3 License Copyright |
| 170 | */ |
| 171 | public static function css(string $input) : string |
| 172 | { |
| 173 | $input = \trim($input); |
| 174 | if (empty($input)) { |
| 175 | return $input; |
| 176 | } |
| 177 | // Force white-space(s) in `calc()` |
| 178 | if (\str_contains($input, 'calc(')) { |
| 179 | $input = \preg_replace_callback('#(?<=[\s:])calc\(\s*(.*?)\s*\)#', static function ($matches) { |
| 180 | return 'calc(' . \preg_replace('#\s+#', "\x1A", $matches[1]) . ')'; |
| 181 | }, $input); |
| 182 | } |
| 183 | return \preg_replace([ |
| 184 | // Remove comment(s) |
| 185 | '#("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\')|\/\*(?!\!)(?>.*?\*\/)|^\s*|\s*$#s', |
| 186 | // Remove unused white-space(s) |
| 187 | '#("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\'|\/\*(?>.*?\*\/))|\s*+;\s*+(})\s*+|\s*+([*$~^|]?+=|[{};,>~+]|\s*+-(?![0-9\.])|!important\b)\s*+|([[(:])\s++|\s++([])])|\s++(:)\s*+(?!(?>[^{}"\']++|"(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\')*+{)|^\s++|\s++\z|(\s)\s+#si', |
| 188 | // Replace `0(cm|em|ex|in|mm|pc|pt|px|vh|vw|%)` with `0` |
| 189 | '#(?<=[\s:])(0)(cm|em|ex|in|mm|pc|pt|px|vh|vw|%)#si', |
| 190 | // Replace `:0 0 0 0` with `:0` |
| 191 | '#:(0\s+0|0\s+0\s+0\s+0)(?=[;\}]|\!important)#i', |
| 192 | // Replace `background-position:0` with `background-position:0 0` |
| 193 | '#(background-position):0(?=[;\}])#si', |
| 194 | // Replace `0.6` with `.6`, but only when preceded by a white-space or `=`, `:`, `,`, `(`, `-` |
| 195 | '#(?<=[\s=:,\(\-]|&\#32;)0+\.(\d+)#s', |
| 196 | // Minify string value |
| 197 | '#(\/\*(?>.*?\*\/))|(?<!content\:)([\'"])([a-z_][-\w]*?)\2(?=[\s\{\}\];,])#si', |
| 198 | '#(\/\*(?>.*?\*\/))|(\burl\()([\'"])([^\s]+?)\3(\))#si', |
| 199 | // Minify HEX color code |
| 200 | '#(?<=[\s=:,\(]\#)([a-f0-6]+)\1([a-f0-6]+)\2([a-f0-6]+)\3#i', |
| 201 | // Replace `(border|outline):none` with `(border|outline):0` |
| 202 | '#(?<=[\{;])(border|outline):none(?=[;\}\!])#', |
| 203 | // Remove empty selector(s) |
| 204 | '#(\/\*(?>.*?\*\/))|(^|[\{\}])(?:[^\s\{\}]+)\{\}#s', |
| 205 | '#\x1A#', |
| 206 | ], [ |
| 207 | '$1', |
| 208 | '$1$2$3$4$5$6$7', |
| 209 | '$1', |
| 210 | ':0', |
| 211 | '$1:0 0', |
| 212 | '.$1', |
| 213 | '$1$3', |
| 214 | '$1$2$4$5', |
| 215 | '$1$2$3', |
| 216 | '$1:0', |
| 217 | '$1$2', |
| 218 | ' ', |
| 219 | ], $input); |
| 220 | } |
| 221 | |
| 222 | /** |
| 223 | * Minify JavaScript. |
| 224 | * |
| 225 | * Be careful: |
| 226 | * This method doesn't support "javascript automatic semicolon insertion", you must add |
| 227 | * semicolon by yourself, otherwise your javascript code will not work and generate error |
| 228 | * messages. |
| 229 | * |
| 230 | * @param string $input |
| 231 | * |
| 232 | * @see https://github.com/mecha-cms/mecha-cms/blob/master/engine/kernel/converter.php |
| 233 | * |
| 234 | * @return string |
| 235 | * |
| 236 | * @author Taufik Nurrohman |
| 237 | * @license GPL version 3 License Copyright |
| 238 | */ |
| 239 | public static function js(string $input) : string |
| 240 | { |
| 241 | $input = \trim($input); |
| 242 | if (empty($input)) { |
| 243 | return $input; |
| 244 | } |
| 245 | return \preg_replace([ |
| 246 | // Remove comment(s) |
| 247 | '#\s*("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\')\s*|\s*\/\*(?!\!|@cc_on)(?>[\s\S]*?\*\/)\s*|\s*(?<![\:\=])\/\/.*(?=[\n\r]|$)|^\s*|\s*$#', |
| 248 | // Remove white-space(s) outside the string and regex |
| 249 | '#("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\'|\/\*(?>.*?\*\/)|\/(?!\/)[^\n\r]*?\/(?=[\s.,;]|[gimuy]|$))|\s*([!%&*\(\)\-=+\[\]\{\}|;:,.<>?\/])\s*#s', |
| 250 | // Remove the last semicolon |
| 251 | '#;+\}#', |
| 252 | // Minify object attribute(s) except JSON attribute(s). From `{'foo':'bar'}` to `{foo:'bar'}` |
| 253 | '#([\{,])([\'])(\d+|[a-z_]\w*)\2(?=\:)#i', |
| 254 | // --ibid. From `foo['bar']` to `foo.bar` |
| 255 | '#([\w\)\]])\[([\'"])([a-z_]\w*)\2\]#i', |
| 256 | // Replace `true` with `!0` |
| 257 | '#(?<=return |[=:,\(\[])true\b#', |
| 258 | // Replace `false` with `!1` |
| 259 | '#(?<=return |[=:,\(\[])false\b#', |
| 260 | // Clean up ... |
| 261 | '#\s*(\/\*|\*\/)\s*#', |
| 262 | ], [ |
| 263 | '$1', |
| 264 | '$1$2', |
| 265 | '}', |
| 266 | '$1$3', |
| 267 | '$1.$3', |
| 268 | '!0', |
| 269 | '!1', |
| 270 | '$1', |
| 271 | ], $input); |
| 272 | } |
| 273 | } |