| @@ -1,1070 +1,351 @@ | ||
| 1 | 1 | <?php |
| 2 | -/** | |
| 3 | - * Class for CSS optimization. | |
| 4 | - */ | |
| 5 | - | |
| 6 | -if ( ! defined( 'ABSPATH' ) ) { | |
| 7 | - exit; | |
| 8 | -} | |
| 9 | - | |
| 10 | 2 | class autoptimizeStyles extends autoptimizeBase |
| 11 | 3 | { |
| 12 | - const ASSETS_REGEX = '/url\s*\(\s*(?!["\']?data:)(?![\'|\"]?[\#|\%|])([^)]+)\s*\)([^;},\s]*)/i'; | |
| 4 | + private $css = array(); | |
| 5 | + private $csscode = array(); | |
| 6 | + private $url = array(); | |
| 7 | + private $restofcontent = ''; | |
| 8 | + private $mhtml = ''; | |
| 9 | + private $datauris = false; | |
| 10 | + private $yui = false; | |
| 11 | + private $hashmap = array(); | |
| 12 | + | |
| 13 | + //Reads the page and collects style tags | |
| 14 | + public function read($options) | |
| 15 | + { | |
| 16 | + //Remove everything that's not the header | |
| 17 | + if($options['justhead'] == true) | |
| 18 | + { | |
| 19 | + $content = explode('</head>',$this->content,2); | |
| 20 | + $this->content = $content[0].'</head>'; | |
| 21 | + $this->restofcontent = $content[1]; | |
| 22 | + } | |
| 23 | + | |
| 24 | + //Store data: URIs setting for later use | |
| 25 | + $this->datauris = $options['datauris']; | |
| 26 | + | |
| 27 | + //Do we use yui? | |
| 28 | + $this->yui = $options['yui']; | |
| 29 | + | |
| 30 | + //Save IE hacks | |
| 31 | + $this->content = preg_replace('#(<\!--\[if.*\]>.*<\!\[endif\]-->)#Usie', | |
| 32 | + '\'%%IEHACK%%\'.base64_encode("$1").\'%%IEHACK%%\'',$this->content); | |
| 33 | + | |
| 34 | + //Get <style> and <link> | |
| 35 | + if(preg_match_all('#(<style[^>]*>.*</style>)|(<link[^>]*text/css[^>]*>)#Usmi',$this->content,$matches)) | |
| 36 | + { | |
| 37 | + foreach($matches[0] as $tag) | |
| 38 | + { | |
| 39 | + if(preg_match('#<link.*href=("|\')(.*)("|\')#Usmi',$tag,$source)) | |
| 40 | + { | |
| 41 | + //<link> | |
| 42 | + $url = current(explode('?',$source[2],2)); | |
| 43 | + $path = $this->getpath($url); | |
| 44 | + $media = array('all'); | |
| 45 | + | |
| 46 | + if($path !==false && preg_match('#\.css$#',$path)) | |
| 47 | + { | |
| 48 | + //Good link | |
| 49 | + //Get the media | |
| 50 | + if(strpos($tag,'media=')!==false) | |
| 51 | + { | |
| 52 | + $medias = preg_replace('#^.*media=(?:"|\')(.*)(?:"|\').*$#U','$1',$tag); | |
| 53 | + $medias = explode(',',$medias); | |
| 54 | + $media = array(); | |
| 55 | + foreach($medias as $elem) | |
| 56 | + { | |
| 57 | + $media[] = current(explode(' ',trim($elem),2)); | |
| 58 | + } | |
| 59 | + }else{ | |
| 60 | + //No media specified - applies to all | |
| 61 | + $media = array('all'); | |
| 62 | + } | |
| 13 | 63 | |
| 14 | - /** | |
| 15 | - * Font-face regex-fu from HamZa at: https://stackoverflow.com/a/21395083 | |
| 16 | - * ~ | |
| 17 | - * @font-face\s* # Match @font-face and some spaces | |
| 18 | - * ( # Start group 1 | |
| 19 | - * \{ # Match { | |
| 20 | - * (?: # A non-capturing group | |
| 21 | - * [^{}]+ # Match anything except {} one or more times | |
| 22 | - * | # Or | |
| 23 | - * (?1) # Recurse/rerun the expression of group 1 | |
| 24 | - * )* # Repeat 0 or more times | |
| 25 | - * \} # Match } | |
| 26 | - * ) # End group 1 | |
| 27 | - * ~xs'; | |
| 28 | - */ | |
| 29 | - const FONT_FACE_REGEX = '~@font-face\s*(\{(?:[^{}]+|(?1))*\})~xsi'; // added `i` flag for case-insensitivity. | |
| 30 | - | |
| 31 | - private $css = array(); | |
| 32 | - private $csscode = array(); | |
| 33 | - private $url = array(); | |
| 34 | - private $restofcontent = ''; | |
| 35 | - private $datauris = false; | |
| 36 | - private $hashmap = array(); | |
| 37 | - private $alreadyminified = false; | |
| 38 | - private $aggregate = true; | |
| 39 | - private $inline = false; | |
| 40 | - private $defer = false; | |
| 41 | - private $defer_inline = false; | |
| 42 | - private $whitelist = ''; | |
| 43 | - private $cssinlinesize = ''; | |
| 44 | - private $cssremovables = array(); | |
| 45 | - private $include_inline = false; | |
| 46 | - private $inject_min_late = ''; | |
| 47 | - | |
| 48 | - // public $cdn_url; // Used all over the place implicitly, so will have to be either public or protected :/ . | |
| 49 | - | |
| 50 | - // Reads the page and collects style tags. | |
| 51 | - public function read( $options ) | |
| 52 | - { | |
| 53 | - $noptimizeCSS = apply_filters( 'autoptimize_filter_css_noptimize', false, $this->content ); | |
| 54 | - if ( $noptimizeCSS ) { | |
| 55 | - return false; | |
| 56 | - } | |
| 57 | - | |
| 58 | - $whitelistCSS = apply_filters( 'autoptimize_filter_css_whitelist', '', $this->content ); | |
| 59 | - if ( ! empty( $whitelistCSS ) ) { | |
| 60 | - $this->whitelist = array_filter( array_map( 'trim', explode( ',', $whitelistCSS ) ) ); | |
| 61 | - } | |
| 62 | - | |
| 63 | - $removableCSS = apply_filters( 'autoptimize_filter_css_removables', '' ); | |
| 64 | - if ( ! empty( $removableCSS ) ) { | |
| 65 | - $this->cssremovables = array_filter( array_map( 'trim', explode( ',', $removableCSS ) ) ); | |
| 66 | - } | |
| 67 | - | |
| 68 | - $this->cssinlinesize = apply_filters( 'autoptimize_filter_css_inlinesize', 256 ); | |
| 69 | - | |
| 70 | - // filter to "late inject minified CSS", default to true for now (it is faster). | |
| 71 | - $this->inject_min_late = apply_filters( 'autoptimize_filter_css_inject_min_late', true ); | |
| 72 | - | |
| 73 | - // Remove everything that's not the header. | |
| 74 | - if ( apply_filters( 'autoptimize_filter_css_justhead', $options['justhead'] ) ) { | |
| 75 | - $content = explode( '</head>', $this->content, 2 ); | |
| 76 | - $this->content = $content[0] . '</head>'; | |
| 77 | - $this->restofcontent = $content[1]; | |
| 78 | - } | |
| 79 | - | |
| 80 | - // Determine whether we're doing CSS-files aggregation or not. | |
| 81 | - if ( isset( $options['aggregate'] ) && ! $options['aggregate'] ) { | |
| 82 | - $this->aggregate = false; | |
| 83 | - } | |
| 84 | - // Returning true for "dontaggregate" turns off aggregation. | |
| 85 | - if ( $this->aggregate && apply_filters( 'autoptimize_filter_css_dontaggregate', false ) ) { | |
| 86 | - $this->aggregate = false; | |
| 87 | - } | |
| 88 | - | |
| 89 | - // include inline? | |
| 90 | - if ( apply_filters( 'autoptimize_css_include_inline', $options['include_inline'] ) ) { | |
| 91 | - $this->include_inline = true; | |
| 92 | - } | |
| 93 | - | |
| 94 | - // List of CSS strings which are excluded from autoptimization. | |
| 95 | - $excludeCSS = apply_filters( 'autoptimize_filter_css_exclude', $options['css_exclude'], $this->content ); | |
| 96 | - if ( '' !== $excludeCSS ) { | |
| 97 | - $this->dontmove = array_filter( array_map( 'trim', explode( ',', $excludeCSS ) ) ); | |
| 98 | - } else { | |
| 99 | - $this->dontmove = array(); | |
| 100 | - } | |
| 101 | - | |
| 102 | - // forcefully exclude CSS with data-noptimize attrib. | |
| 103 | - $this->dontmove[] = 'data-noptimize'; | |
| 104 | - | |
| 105 | - // Should we defer css? | |
| 106 | - // value: true / false. | |
| 107 | - $this->defer = $options['defer']; | |
| 108 | - $this->defer = apply_filters( 'autoptimize_filter_css_defer', $this->defer, $this->content ); | |
| 109 | - | |
| 110 | - // Should we inline while deferring? | |
| 111 | - // value: inlined CSS. | |
| 112 | - $this->defer_inline = apply_filters( 'autoptimize_filter_css_defer_inline', $options['defer_inline'], $this->content ); | |
| 113 | - | |
| 114 | - // Should we inline? | |
| 115 | - // value: true / false. | |
| 116 | - $this->inline = $options['inline']; | |
| 117 | - $this->inline = apply_filters( 'autoptimize_filter_css_inline', $this->inline, $this->content ); | |
| 118 | - | |
| 119 | - // Store cdn url. | |
| 120 | - $this->cdn_url = $options['cdn_url']; | |
| 121 | - | |
| 122 | - // Store data: URIs setting for later use. | |
| 123 | - $this->datauris = $options['datauris']; | |
| 124 | - | |
| 125 | - // noptimize me. | |
| 126 | - $this->content = $this->hide_noptimize( $this->content ); | |
| 127 | - | |
| 128 | - // Exclude (no)script, as those may contain CSS which should be left as is. | |
| 129 | - $this->content = $this->replace_contents_with_marker_if_exists( | |
| 130 | - 'SCRIPT', | |
| 131 | - '<script', | |
| 132 | - '#<(?:no)?script.*?<\/(?:no)?script>#is', | |
| 133 | - $this->content | |
| 134 | - ); | |
| 135 | - | |
| 136 | - // Save IE hacks. | |
| 137 | - $this->content = $this->hide_iehacks( $this->content ); | |
| 138 | - | |
| 139 | - // Hide HTML comments. | |
| 140 | - $this->content = $this->hide_comments( $this->content ); | |
| 141 | - | |
| 142 | - // Get <style> and <link>. | |
| 143 | - if ( preg_match_all( '#(<style[^>]*>.*</style>)|(<link[^>]*stylesheet[^>]*>)#Usmi', $this->content, $matches ) ) { | |
| 144 | - | |
| 145 | - foreach ( $matches[0] as $tag ) { | |
| 146 | - if ( $this->isremovable( $tag, $this->cssremovables ) ) { | |
| 147 | - $this->content = str_replace( $tag, '', $this->content ); | |
| 148 | - } elseif ( $this->ismovable( $tag ) ) { | |
| 149 | - // Get the media. | |
| 150 | - if ( false !== strpos( $tag, 'media=' ) ) { | |
| 151 | - preg_match( '#media=(?:"|\')([^>]*)(?:"|\')#Ui', $tag, $medias ); | |
| 152 | - $medias = explode( ',', $medias[1] ); | |
| 153 | - $media = array(); | |
| 154 | - foreach ( $medias as $elem ) { | |
| 155 | - /* $media[] = current(explode(' ',trim($elem),2)); */ | |
| 156 | - if ( empty( $elem ) ) { | |
| 157 | - $elem = 'all'; | |
| 158 | - } | |
| 159 | - | |
| 160 | - $media[] = $elem; | |
| 161 | - } | |
| 162 | - } else { | |
| 163 | - // No media specified - applies to all. | |
| 164 | - $media = array( 'all' ); | |
| 165 | - } | |
| 166 | - | |
| 167 | - $media = apply_filters( 'autoptimize_filter_css_tagmedia', $media, $tag ); | |
| 168 | - | |
| 169 | - if ( preg_match( '#<link.*href=("|\')(.*)("|\')#Usmi', $tag, $source ) ) { | |
| 170 | - // <link>. | |
| 171 | - $url = current( explode( '?', $source[2], 2 ) ); | |
| 172 | - $path = $this->getpath( $url ); | |
| 173 | - | |
| 174 | - if ( false !== $path && preg_match( '#\.css$#', $path ) ) { | |
| 175 | - // Good link. | |
| 176 | - $this->css[] = array( $media, $path ); | |
| 177 | - } else { | |
| 178 | - // Link is dynamic (.php etc). | |
| 179 | - $tag = ''; | |
| 180 | - } | |
| 181 | - } else { | |
| 182 | - // Inline css in style tags can be wrapped in comment tags, so restore comments. | |
| 183 | - $tag = $this->restore_comments( $tag ); | |
| 184 | - preg_match( '#<style.*>(.*)</style>#Usmi', $tag, $code ); | |
| 185 | - | |
| 186 | - // And re-hide them to be able to to the removal based on tag. | |
| 187 | - $tag = $this->hide_comments( $tag ); | |
| 188 | - | |
| 189 | - if ( $this->include_inline ) { | |
| 190 | - $code = preg_replace( '#^.*<!\[CDATA\[(?:\s*\*/)?(.*)(?://|/\*)\s*?\]\]>.*$#sm', '$1', $code[1] ); | |
| 191 | - $this->css[] = array( $media, 'INLINE;' . $code ); | |
| 192 | - } else { | |
| 193 | - $tag = ''; | |
| 194 | - } | |
| 195 | - } | |
| 196 | - | |
| 197 | - // Remove the original style tag. | |
| 198 | - $this->content = str_replace( $tag, '', $this->content ); | |
| 199 | - } else { | |
| 200 | - // Excluded CSS, minify if getpath and filter says so... | |
| 201 | - if ( preg_match( '#<link.*href=("|\')(.*)("|\')#Usmi', $tag, $source ) ) { | |
| 202 | - $exploded_url = explode( '?', $source[2], 2 ); | |
| 203 | - $url = $exploded_url[0]; | |
| 204 | - $path = $this->getpath( $url ); | |
| 205 | - | |
| 206 | - if ( $path && apply_filters( 'autoptimize_filter_css_minify_excluded', true, $url ) ) { | |
| 207 | - $minified_url = $this->minify_single( $path ); | |
| 208 | - if ( ! empty( $minified_url ) ) { | |
| 209 | - // Replace orig URL with cached minified URL. | |
| 210 | - $new_tag = str_replace( $url, $minified_url, $tag ); | |
| 211 | - } else { | |
| 212 | - $new_tag = $tag; | |
| 213 | - } | |
| 214 | - | |
| 215 | - // Removes querystring from URL. | |
| 216 | - if ( ! empty( $exploded_url[1] ) ) { | |
| 217 | - $new_tag = str_replace( '?' . $exploded_url[1], '', $new_tag ); | |
| 218 | - } | |
| 219 | - | |
| 220 | - // Defer single CSS if "inline & defer" is ON and there is inline CSS. | |
| 221 | - if ( $this->defer && ! empty( $this->defer_inline ) ) { | |
| 222 | - // Get/ set (via filter) the JS to be triggers onload of the preloaded CSS. | |
| 223 | - $_preload_onload = apply_filters( | |
| 224 | - 'autoptimize_filter_css_preload_onload', | |
| 225 | - "this.onload=null;this.rel='stylesheet'", | |
| 226 | - $url | |
| 227 | - ); | |
| 228 | - // Adapt original <link> element for CSS to be preloaded and add <noscript>-version for fallback. | |
| 229 | - $new_tag = '<noscript>' . $new_tag . '</noscript>' . str_replace( | |
| 230 | - array( | |
| 231 | - "rel='stylesheet'", | |
| 232 | - 'rel="stylesheet"', | |
| 233 | - ), | |
| 234 | - "rel='preload' as='style' onload=\"" . $_preload_onload . "\"", | |
| 235 | - $new_tag | |
| 236 | - ); | |
| 237 | - } | |
| 238 | - | |
| 239 | - // And replace! | |
| 240 | - $this->content = str_replace( $tag, $new_tag, $this->content ); | |
| 241 | - } | |
| 242 | - } | |
| 243 | - } | |
| 244 | - } | |
| 245 | - return true; | |
| 246 | - } | |
| 247 | - | |
| 248 | - // Really, no styles? | |
| 249 | - return false; | |
| 250 | - } | |
| 251 | - | |
| 252 | - /** | |
| 253 | - * Checks if the local file referenced by $path is a valid | |
| 254 | - * candidate for being inlined into a data: URI | |
| 255 | - * | |
| 256 | - * @param string $path | |
| 257 | - * @return boolean | |
| 258 | - */ | |
| 259 | - private function is_datauri_candidate( $path ) | |
| 260 | - { | |
| 261 | - // Call only once since it's called from a loop. | |
| 262 | - static $max_size = null; | |
| 263 | - if ( null === $max_size ) { | |
| 264 | - $max_size = $this->get_datauri_maxsize(); | |
| 265 | - } | |
| 266 | - | |
| 267 | - if ( $path && preg_match( '#\.(jpe?g|png|gif|webp|bmp)$#i', $path ) && | |
| 268 | - file_exists( $path ) && is_readable( $path ) && filesize( $path ) <= $max_size ) { | |
| 269 | - | |
| 270 | - // Seems we have a candidate. | |
| 271 | - $is_candidate = true; | |
| 272 | - } else { | |
| 273 | - // Filter allows overriding default decision (which checks for local file existence). | |
| 274 | - $is_candidate = apply_filters( 'autoptimize_filter_css_is_datauri_candidate', false, $path ); | |
| 275 | - } | |
| 276 | - | |
| 277 | - return $is_candidate; | |
| 278 | - } | |
| 279 | - | |
| 280 | - /** | |
| 281 | - * Returns the amount of bytes that shouldn't be exceeded if a file is to | |
| 282 | - * be inlined into a data: URI. Defaults to 4096, passed through | |
| 283 | - * `autoptimize_filter_css_datauri_maxsize` filter. | |
| 284 | - * | |
| 285 | - * @return mixed | |
| 286 | - */ | |
| 287 | - private function get_datauri_maxsize() | |
| 288 | - { | |
| 289 | - static $max_size = null; | |
| 290 | - | |
| 291 | - /** | |
| 292 | - * No need to apply the filter multiple times in case the | |
| 293 | - * method itself is invoked multiple times during a single request. | |
| 294 | - * This prevents some wild stuff like having different maxsizes | |
| 295 | - * for different files/site-sections etc. But if you're into that sort | |
| 296 | - * of thing you're probably better of building assets completely | |
| 297 | - * outside of WordPress anyway. | |
| 298 | - */ | |
| 299 | - if ( null === $max_size ) { | |
| 300 | - $max_size = (int) apply_filters( 'autoptimize_filter_css_datauri_maxsize', 4096 ); | |
| 301 | - } | |
| 302 | - | |
| 303 | - return $max_size; | |
| 304 | - } | |
| 305 | - | |
| 306 | - private function check_datauri_exclude_list( $url ) | |
| 307 | - { | |
| 308 | - static $exclude_list = null; | |
| 309 | - $no_datauris = array(); | |
| 310 | - | |
| 311 | - // Again, skip doing certain stuff repeatedly when loop-called. | |
| 312 | - if ( null === $exclude_list ) { | |
| 313 | - $exclude_list = apply_filters( 'autoptimize_filter_css_datauri_exclude', '' ); | |
| 314 | - $no_datauris = array_filter( array_map( 'trim', explode( ',', $exclude_list ) ) ); | |
| 315 | - } | |
| 316 | - | |
| 317 | - $matched = false; | |
| 318 | - | |
| 319 | - if ( ! empty( $exclude_list ) ) { | |
| 320 | - foreach ( $no_datauris as $no_datauri ) { | |
| 321 | - if ( false !== strpos( $url, $no_datauri ) ) { | |
| 322 | - $matched = true; | |
| 323 | - break; | |
| 324 | - } | |
| 325 | - } | |
| 326 | - } | |
| 327 | - | |
| 328 | - return $matched; | |
| 329 | - } | |
| 330 | - | |
| 331 | - private function build_or_get_datauri_image( $path ) | |
| 332 | - { | |
| 333 | - /** | |
| 334 | - * TODO/FIXME: document the required return array format, or better yet, | |
| 335 | - * use a string, since we don't really need an array for this. That would, however, | |
| 336 | - * require changing even more code, which is not happening right now... | |
| 337 | - */ | |
| 338 | - | |
| 339 | - // Allows short-circuiting datauri generation for an image. | |
| 340 | - $result = apply_filters( 'autoptimize_filter_css_datauri_image', array(), $path ); | |
| 341 | - if ( ! empty( $result ) ) { | |
| 342 | - if ( is_array( $result ) && isset( $result['full'] ) && isset( $result['base64data'] ) ) { | |
| 343 | - return $result; | |
| 344 | - } | |
| 345 | - } | |
| 346 | - | |
| 347 | - $hash = md5( $path ); | |
| 348 | - $check = new autoptimizeCache( $hash, 'img' ); | |
| 349 | - if ( $check->check() ) { | |
| 350 | - // we have the base64 image in cache. | |
| 351 | - $headAndData = $check->retrieve(); | |
| 352 | - $_base64data = explode( ';base64,', $headAndData ); | |
| 353 | - $base64data = $_base64data[1]; | |
| 354 | - unset( $_base64data ); | |
| 355 | - } else { | |
| 356 | - // It's an image and we don't have it in cache, get the type by extension. | |
| 357 | - $exploded_path = explode( '.', $path ); | |
| 358 | - $type = end( $exploded_path ); | |
| 359 | - | |
| 360 | - switch ( $type ) { | |
| 361 | - case 'jpg': | |
| 362 | - case 'jpeg': | |
| 363 | - $dataurihead = 'data:image/jpeg;base64,'; | |
| 364 | - break; | |
| 365 | - case 'gif': | |
| 366 | - $dataurihead = 'data:image/gif;base64,'; | |
| 367 | - break; | |
| 368 | - case 'png': | |
| 369 | - $dataurihead = 'data:image/png;base64,'; | |
| 370 | - break; | |
| 371 | - case 'bmp': | |
| 372 | - $dataurihead = 'data:image/bmp;base64,'; | |
| 373 | - break; | |
| 374 | - case 'webp': | |
| 375 | - $dataurihead = 'data:image/webp;base64,'; | |
| 376 | - break; | |
| 377 | - default: | |
| 378 | - $dataurihead = 'data:application/octet-stream;base64,'; | |
| 379 | - } | |
| 380 | - | |
| 381 | - // Encode the data. | |
| 382 | - $base64data = base64_encode( file_get_contents( $path ) ); | |
| 383 | - $headAndData = $dataurihead . $base64data; | |
| 384 | - | |
| 385 | - // Save in cache. | |
| 386 | - $check->cache( $headAndData, 'text/plain' ); | |
| 387 | - } | |
| 388 | - unset( $check ); | |
| 389 | - | |
| 390 | - return array( 'full' => $headAndData, 'base64data' => $base64data ); | |
| 391 | - } | |
| 392 | - | |
| 393 | - /** | |
| 394 | - * Given an array of key/value pairs to replace in $string, | |
| 395 | - * it does so by replacing the longest-matching strings first. | |
| 396 | - * | |
| 397 | - * @param string $string | |
| 398 | - * @param array $replacements | |
| 399 | - * | |
| 400 | - * @return string | |
| 401 | - */ | |
| 402 | - protected static function replace_longest_matches_first( $string, $replacements = array() ) | |
| 403 | - { | |
| 404 | - if ( ! empty( $replacements ) ) { | |
| 405 | - // Sort the replacements array by key length in desc order (so that the longest strings are replaced first). | |
| 406 | - $keys = array_map( 'strlen', array_keys( $replacements ) ); | |
| 407 | - array_multisort( $keys, SORT_DESC, $replacements ); | |
| 408 | - $string = str_replace( array_keys( $replacements ), array_values( $replacements ), $string ); | |
| 409 | - } | |
| 410 | - | |
| 411 | - return $string; | |
| 412 | - } | |
| 413 | - | |
| 414 | - /** | |
| 415 | - * Rewrites/Replaces any ASSETS_REGEX-matching urls in a string. | |
| 416 | - * Removes quotes/cruft around each one and passes it through to | |
| 417 | - * `autoptimizeBase::url_replace_cdn()`. | |
| 418 | - * Replacements are performed in a `longest-match-replaced-first` way. | |
| 419 | - * | |
| 420 | - * @param string $code CSS code. | |
| 421 | - * | |
| 422 | - * @return string | |
| 423 | - */ | |
| 424 | - public function replace_urls( $code = '' ) | |
| 425 | - { | |
| 426 | - $replacements = array(); | |
| 427 | - | |
| 428 | - preg_match_all( self::ASSETS_REGEX, $code, $url_src_matches ); | |
| 429 | - if ( is_array( $url_src_matches ) && ! empty( $url_src_matches ) ) { | |
| 430 | - foreach ( $url_src_matches[1] as $count => $original_url ) { | |
| 431 | - // Removes quotes and other cruft. | |
| 432 | - $url = trim( $original_url, " \t\n\r\0\x0B\"'" ); | |
| 433 | - | |
| 434 | - /** | |
| 435 | - * TODO/FIXME: Add a way for other code / callable to be called here | |
| 436 | - * and provide it's own results for the $replacements array | |
| 437 | - * for the "current" key. | |
| 438 | - * If such a result is returned/provided, we sholud then avoid | |
| 439 | - * calling url_replace_cdn() here for the current iteration. | |
| 440 | - * | |
| 441 | - * This would maybe allow the inlining logic currently present | |
| 442 | - * in `autoptimizeStyles::rewrite_assets()` to be "pulled out" | |
| 443 | - * and given as a callable to this method or something... and | |
| 444 | - * then we could "just" call `replace_urls()` from within | |
| 445 | - * `autoptimizeStyles::rewrite_assets()` and avoid some | |
| 446 | - * (currently present) code/logic duplication. | |
| 447 | - */ | |
| 448 | - | |
| 449 | - // Do CDN replacement if needed. | |
| 450 | - if ( ! empty( $this->cdn_url ) ) { | |
| 451 | - $replacement_url = $this->url_replace_cdn( $url ); | |
| 452 | - // Prepare replacements array. | |
| 453 | - $replacements[ $url_src_matches[1][ $count ] ] = str_replace( | |
| 454 | - $original_url, $replacement_url, $url_src_matches[1][$count] | |
| 455 | - ); | |
| 456 | - } | |
| 457 | - } | |
| 458 | - } | |
| 459 | - | |
| 460 | - $code = self::replace_longest_matches_first( $code, $replacements ); | |
| 461 | - | |
| 462 | - return $code; | |
| 463 | - } | |
| 464 | - | |
| 465 | - /** | |
| 466 | - * "Hides" @font-face declarations by replacing them with `%%FONTFACE%%` markers. | |
| 467 | - * Also does CDN replacement of any font-urls within those declarations if the `autoptimize_filter_css_fonts_cdn` | |
| 468 | - * filter is used. | |
| 469 | - * | |
| 470 | - * @param string $code | |
| 471 | - * @return string | |
| 472 | - */ | |
| 473 | - public function hide_fontface_and_maybe_cdn( $code ) | |
| 474 | - { | |
| 475 | - // Proceed only if @font-face declarations exist within $code. | |
| 476 | - preg_match_all( self::FONT_FACE_REGEX, $code, $fontfaces ); | |
| 477 | - if ( isset( $fontfaces[0] ) ) { | |
| 478 | - // Check if we need to cdn fonts or not. | |
| 479 | - $do_font_cdn = apply_filters( 'autoptimize_filter_css_fonts_cdn', false ); | |
| 480 | - | |
| 481 | - foreach ( $fontfaces[0] as $full_match ) { | |
| 482 | - // Keep original match so we can search/replace it. | |
| 483 | - $match_search = $full_match; | |
| 484 | - | |
| 485 | - // Do font cdn if needed. | |
| 486 | - if ( $do_font_cdn ) { | |
| 487 | - $full_match = $this->replace_urls( $full_match ); | |
| 488 | - } | |
| 489 | - | |
| 490 | - // Replace declaration with its base64 encoded string. | |
| 491 | - $replacement = self::build_marker( 'FONTFACE', $full_match ); | |
| 492 | - $code = str_replace( $match_search, $replacement, $code ); | |
| 493 | - } | |
| 494 | - } | |
| 495 | - | |
| 496 | - return $code; | |
| 497 | - } | |
| 498 | - | |
| 499 | - /** | |
| 500 | - * Restores original @font-face declarations that have been "hidden" | |
| 501 | - * using `hide_fontface_and_maybe_cdn()`. | |
| 502 | - * | |
| 503 | - * @param string $code | |
| 504 | - * @return string | |
| 505 | - */ | |
| 506 | - public function restore_fontface( $code ) | |
| 507 | - { | |
| 508 | - return $this->restore_marked_content( 'FONTFACE', $code ); | |
| 509 | - } | |
| 510 | - | |
| 511 | - // Re-write (and/or inline) referenced assets. | |
| 512 | - public function rewrite_assets( $code ) | |
| 513 | - { | |
| 514 | - // Handle @font-face rules by hiding and processing them separately. | |
| 515 | - $code = $this->hide_fontface_and_maybe_cdn( $code ); | |
| 516 | - | |
| 517 | - /** | |
| 518 | - * TODO/FIXME: | |
| 519 | - * Certain code parts below are kind-of repeated now in `replace_urls()`, which is not ideal. | |
| 520 | - * There is maybe a way to separate/refactor things and then be able to keep | |
| 521 | - * the ASSETS_REGEX rewriting/handling logic in a single place (along with removing quotes/cruft from matched urls). | |
| 522 | - * See comments in `replace_urls()` regarding this. The idea is to extract the inlining | |
| 523 | - * logic out (which is the only real difference between replace_urls() and the code below), but still | |
| 524 | - * achieve identical results as before. | |
| 525 | - */ | |
| 526 | - | |
| 527 | - // Re-write (and/or inline) URLs to point them to the CDN host. | |
| 528 | - $url_src_matches = array(); | |
| 529 | - $imgreplace = array(); | |
| 530 | - // Matches and captures anything specified within the literal `url()` and excludes those containing data: URIs. | |
| 531 | - preg_match_all( self::ASSETS_REGEX, $code, $url_src_matches ); | |
| 532 | - if ( is_array( $url_src_matches ) && ! empty( $url_src_matches ) ) { | |
| 533 | - foreach ( $url_src_matches[1] as $count => $original_url ) { | |
| 534 | - // Removes quotes and other cruft. | |
| 535 | - $url = trim( $original_url, " \t\n\r\0\x0B\"'" ); | |
| 536 | - | |
| 537 | - // If datauri inlining is turned on, do it. | |
| 538 | - $inlined = false; | |
| 539 | - if ( $this->datauris ) { | |
| 540 | - $iurl = $url; | |
| 541 | - if ( false !== strpos( $iurl, '?' ) ) { | |
| 542 | - $iurl = strtok( $iurl, '?' ); | |
| 543 | - } | |
| 544 | - | |
| 545 | - $ipath = $this->getpath( $iurl ); | |
| 546 | - | |
| 547 | - $excluded = $this->check_datauri_exclude_list( $ipath ); | |
| 548 | - if ( ! $excluded ) { | |
| 549 | - $is_datauri_candidate = $this->is_datauri_candidate( $ipath ); | |
| 550 | - if ( $is_datauri_candidate ) { | |
| 551 | - $datauri = $this->build_or_get_datauri_image( $ipath ); | |
| 552 | - $base64data = $datauri['base64data']; | |
| 553 | - // Add it to the list for replacement. | |
| 554 | - $imgreplace[ $url_src_matches[1][ $count ] ] = str_replace( | |
| 555 | - $original_url, | |
| 556 | - $datauri['full'], | |
| 557 | - $url_src_matches[1][$count] | |
| 558 | - ); | |
| 559 | - $inlined = true; | |
| 560 | - } | |
| 561 | - } | |
| 562 | - } | |
| 563 | - | |
| 564 | - /** | |
| 565 | - * Doing CDN URL replacement for every found match (if CDN is | |
| 566 | - * specified). This way we make sure to do it even if | |
| 567 | - * inlining isn't turned on, or if a resource is skipped from | |
| 568 | - * being inlined for whatever reason above. | |
| 569 | - */ | |
| 570 | - if ( ! $inlined && ( ! empty( $this->cdn_url ) || has_filter( 'autoptimize_filter_base_replace_cdn' ) ) ) { | |
| 571 | - // Just do the "simple" CDN replacement. | |
| 572 | - $replacement_url = $this->url_replace_cdn( $url ); | |
| 573 | - $imgreplace[ $url_src_matches[1][ $count ] ] = str_replace( | |
| 574 | - $original_url, $replacement_url, $url_src_matches[1][$count] | |
| 575 | - ); | |
| 576 | - } | |
| 577 | - } | |
| 578 | - } | |
| 579 | - | |
| 580 | - $code = self::replace_longest_matches_first( $code, $imgreplace ); | |
| 581 | - | |
| 582 | - // Replace back font-face markers with actual font-face declarations. | |
| 583 | - $code = $this->restore_fontface( $code ); | |
| 584 | - | |
| 585 | - return $code; | |
| 586 | - } | |
| 587 | - | |
| 588 | - // Joins and optimizes CSS. | |
| 589 | - public function minify() | |
| 590 | - { | |
| 591 | - foreach ( $this->css as $group ) { | |
| 592 | - list( $media, $css ) = $group; | |
| 593 | - if ( preg_match( '#^INLINE;#', $css ) ) { | |
| 594 | - // <style>. | |
| 595 | - $css = preg_replace( '#^INLINE;#', '', $css ); | |
| 596 | - $css = self::fixurls( ABSPATH . 'index.php', $css ); // ABSPATH already contains a trailing slash. | |
| 597 | - $tmpstyle = apply_filters( 'autoptimize_css_individual_style', $css, '' ); | |
| 598 | - if ( has_filter( 'autoptimize_css_individual_style' ) && ! empty( $tmpstyle ) ) { | |
| 599 | - $css = $tmpstyle; | |
| 600 | - $this->alreadyminified = true; | |
| 601 | - } | |
| 602 | - } else { | |
| 603 | - // <link> | |
| 604 | - if ( false !== $css && file_exists( $css ) && is_readable( $css ) ) { | |
| 605 | - $cssPath = $css; | |
| 606 | - $css = self::fixurls( $cssPath, file_get_contents( $cssPath ) ); | |
| 607 | - $css = preg_replace( '/\x{EF}\x{BB}\x{BF}/', '', $css ); | |
| 608 | - $tmpstyle = apply_filters( 'autoptimize_css_individual_style', $css, $cssPath ); | |
| 609 | - if ( has_filter( 'autoptimize_css_individual_style' ) && ! empty( $tmpstyle ) ) { | |
| 610 | - $css = $tmpstyle; | |
| 611 | - $this->alreadyminified = true; | |
| 612 | - } elseif ( $this->can_inject_late( $cssPath, $css ) ) { | |
| 613 | - $css = self::build_injectlater_marker( $cssPath, md5( $css ) ); | |
| 614 | - } | |
| 615 | - } else { | |
| 616 | - // Couldn't read CSS. Maybe getpath isn't working? | |
| 617 | - $css = ''; | |
| 618 | - } | |
| 619 | - } | |
| 620 | - | |
| 621 | - foreach ( $media as $elem ) { | |
| 622 | - if ( ! empty( $css ) ) { | |
| 623 | - if ( ! isset( $this->csscode[$elem] ) ) { | |
| 624 | - $this->csscode[$elem] = ''; | |
| 625 | - } | |
| 626 | - $this->csscode[$elem] .= "\n/*FILESTART*/" . $css; | |
| 627 | - } | |
| 628 | - } | |
| 629 | - } | |
| 630 | - | |
| 631 | - // Check for duplicate code. | |
| 632 | - $md5list = array(); | |
| 633 | - $tmpcss = $this->csscode; | |
| 634 | - foreach ( $tmpcss as $media => $code ) { | |
| 635 | - $md5sum = md5( $code ); | |
| 636 | - $medianame = $media; | |
| 637 | - foreach ( $md5list as $med => $sum ) { | |
| 638 | - // If same code. | |
| 639 | - if ( $sum === $md5sum ) { | |
| 640 | - // Add the merged code. | |
| 641 | - $medianame = $med . ', ' . $media; | |
| 642 | - $this->csscode[$medianame] = $code; | |
| 643 | - $md5list[$medianame] = $md5list[$med]; | |
| 644 | - unset( $this->csscode[$med], $this->csscode[$media], $med5list[$med] ); | |
| 645 | - } | |
| 646 | - } | |
| 647 | - $md5list[$medianame] = $md5sum; | |
| 648 | - } | |
| 649 | - unset( $tmpcss ); | |
| 650 | - | |
| 651 | - // Manage @imports, while is for recursive import management. | |
| 652 | - foreach ( $this->csscode as &$thiscss ) { | |
| 653 | - // Flag to trigger import reconstitution and var to hold external imports. | |
| 654 | - $fiximports = false; | |
| 655 | - $external_imports = ''; | |
| 656 | - | |
| 657 | - // remove comments to avoid importing commented-out imports. | |
| 658 | - $thiscss_nocomments = preg_replace( '#/\*.*\*/#Us', '', $thiscss ); | |
| 659 | - while ( preg_match_all( '#@import +(?:url)?(?:(?:\((["\']?)(?:[^"\')]+)\1\)|(["\'])(?:[^"\']+)\2)(?:[^,;"\']+(?:,[^,;"\']+)*)?)(?:;)#mi', $thiscss_nocomments, $matches ) ) { | |
| 660 | - foreach ( $matches[0] as $import ) { | |
| 661 | - if ( $this->isremovable( $import, $this->cssremovables ) ) { | |
| 662 | - $thiscss = str_replace( $import, '', $thiscss ); | |
| 663 | - $import_ok = true; | |
| 664 | - } else { | |
| 665 | - $url = trim( preg_replace( '#^.*((?:https?:|ftp:)?//.*\.css).*$#', '$1', trim( $import ) ), " \t\n\r\0\x0B\"'" ); | |
| 666 | - $path = $this->getpath( $url ); | |
| 667 | - $import_ok = false; | |
| 668 | - if ( file_exists( $path ) && is_readable( $path ) ) { | |
| 669 | - $code = addcslashes( self::fixurls( $path, file_get_contents( $path ) ), "\\" ); | |
| 670 | - $code = preg_replace( '/\x{EF}\x{BB}\x{BF}/', '', $code ); | |
| 671 | - $tmpstyle = apply_filters( 'autoptimize_css_individual_style', $code, '' ); | |
| 672 | - if ( has_filter( 'autoptimize_css_individual_style' ) && ! empty( $tmpstyle ) ) { | |
| 673 | - $code = $tmpstyle; | |
| 674 | - $this->alreadyminified = true; | |
| 675 | - } elseif ( $this->can_inject_late( $path, $code ) ) { | |
| 676 | - $code = self::build_injectlater_marker( $path, md5( $code ) ); | |
| 677 | - } | |
| 678 | - | |
| 679 | - if ( ! empty( $code ) ) { | |
| 680 | - $tmp_thiscss = preg_replace( '#(/\*FILESTART\*/.*)' . preg_quote( $import, '#' ) . '#Us', '/*FILESTART2*/' . $code . '$1', $thiscss ); | |
| 681 | - if ( ! empty( $tmp_thiscss ) ) { | |
| 682 | - $thiscss = $tmp_thiscss; | |
| 683 | - $import_ok = true; | |
| 684 | - unset( $tmp_thiscss ); | |
| 685 | - } | |
| 686 | - } | |
| 687 | - unset( $code ); | |
| 688 | - } | |
| 689 | - } | |
| 690 | - if ( ! $import_ok ) { | |
| 691 | - // External imports and general fall-back. | |
| 692 | - $external_imports .= $import; | |
| 693 | - | |
| 694 | - $thiscss = str_replace( $import, '', $thiscss ); | |
| 695 | - $fiximports = true; | |
| 696 | - } | |
| 697 | - } | |
| 698 | - $thiscss = preg_replace( '#/\*FILESTART\*/#', '', $thiscss ); | |
| 699 | - $thiscss = preg_replace( '#/\*FILESTART2\*/#', '/*FILESTART*/', $thiscss ); | |
| 700 | - | |
| 701 | - // and update $thiscss_nocomments before going into next iteration in while loop. | |
| 702 | - $thiscss_nocomments = preg_replace( '#/\*.*\*/#Us', '', $thiscss ); | |
| 703 | - } | |
| 704 | - unset( $thiscss_nocomments ); | |
| 705 | - | |
| 706 | - // Add external imports to top of aggregated CSS. | |
| 707 | - if ( $fiximports ) { | |
| 708 | - $thiscss = $external_imports . $thiscss; | |
| 709 | - } | |
| 710 | - } | |
| 711 | - unset( $thiscss ); | |
| 712 | - | |
| 713 | - // $this->csscode has all the uncompressed code now. | |
| 714 | - foreach ( $this->csscode as &$code ) { | |
| 715 | - // Check for already-minified code. | |
| 716 | - $hash = md5( $code ); | |
| 717 | - do_action( 'autoptimize_action_css_hash', $hash ); | |
| 718 | - $ccheck = new autoptimizeCache( $hash, 'css' ); | |
| 719 | - if ( $ccheck->check() ) { | |
| 720 | - $code = $ccheck->retrieve(); | |
| 721 | - $this->hashmap[md5( $code )] = $hash; | |
| 722 | - continue; | |
| 723 | - } | |
| 724 | - unset( $ccheck ); | |
| 725 | - | |
| 726 | - // Rewrite and/or inline referenced assets. | |
| 727 | - $code = $this->rewrite_assets( $code ); | |
| 728 | - | |
| 729 | - // Minify. | |
| 730 | - $code = $this->run_minifier_on( $code ); | |
| 731 | - | |
| 732 | - // Bring back INJECTLATER stuff. | |
| 733 | - $code = $this->inject_minified( $code ); | |
| 734 | - | |
| 735 | - // Filter results. | |
| 736 | - $tmp_code = apply_filters( 'autoptimize_css_after_minify', $code ); | |
| 737 | - if ( ! empty( $tmp_code ) ) { | |
| 738 | - $code = $tmp_code; | |
| 739 | - unset( $tmp_code ); | |
| 740 | - } | |
| 741 | - | |
| 742 | - $this->hashmap[md5( $code )] = $hash; | |
| 743 | - } | |
| 744 | - | |
| 745 | - unset( $code ); | |
| 746 | - return true; | |
| 747 | - } | |
| 748 | - | |
| 749 | - public function run_minifier_on( $code ) | |
| 750 | - { | |
| 751 | - if ( ! $this->alreadyminified ) { | |
| 752 | - $do_minify = apply_filters( 'autoptimize_css_do_minify', true ); | |
| 753 | - | |
| 754 | - if ( $do_minify ) { | |
| 755 | - $cssmin = new autoptimizeCSSmin(); | |
| 756 | - $tmp_code = trim( $cssmin->run( $code ) ); | |
| 757 | - | |
| 758 | - if ( ! empty( $tmp_code ) ) { | |
| 759 | - $code = $tmp_code; | |
| 760 | - unset( $tmp_code ); | |
| 761 | - } | |
| 762 | - } | |
| 763 | - } | |
| 764 | - | |
| 765 | - return $code; | |
| 766 | - } | |
| 767 | - | |
| 768 | - // Caches the CSS in uncompressed, deflated and gzipped form. | |
| 769 | - public function cache() | |
| 770 | - { | |
| 771 | - // CSS cache. | |
| 772 | - foreach ( $this->csscode as $media => $code ) { | |
| 773 | - $md5 = $this->hashmap[md5( $code )]; | |
| 774 | - $cache = new autoptimizeCache( $md5, 'css' ); | |
| 775 | - if ( ! $cache->check() ) { | |
| 776 | - // Cache our code. | |
| 777 | - $cache->cache( $code, 'text/css' ); | |
| 778 | - } | |
| 779 | - $this->url[$media] = AUTOPTIMIZE_CACHE_URL . $cache->getname(); | |
| 780 | - } | |
| 781 | - } | |
| 782 | - | |
| 783 | - // Returns the content. | |
| 784 | - public function getcontent() | |
| 785 | - { | |
| 786 | - // restore comments. | |
| 787 | - $this->content = $this->restore_comments( $this->content ); | |
| 788 | - | |
| 789 | - // restore IE hacks. | |
| 790 | - $this->content = $this->restore_iehacks( $this->content ); | |
| 791 | - | |
| 792 | - // restore (no)script. | |
| 793 | - $this->content = $this->restore_marked_content( 'SCRIPT', $this->content ); | |
| 794 | - | |
| 795 | - // Restore noptimize. | |
| 796 | - $this->content = $this->restore_noptimize( $this->content ); | |
| 797 | - | |
| 798 | - // Restore the full content. | |
| 799 | - if ( ! empty( $this->restofcontent ) ) { | |
| 800 | - $this->content .= $this->restofcontent; | |
| 801 | - $this->restofcontent = ''; | |
| 802 | - } | |
| 803 | - | |
| 804 | - // Inject the new stylesheets. | |
| 805 | - $replaceTag = array( '<title', 'before' ); | |
| 806 | - $replaceTag = apply_filters( 'autoptimize_filter_css_replacetag', $replaceTag, $this->content ); | |
| 807 | - | |
| 808 | - if ( $this->inline ) { | |
| 809 | - foreach ( $this->csscode as $media => $code ) { | |
| 810 | - $this->inject_in_html( '<style type="text/css" media="' . $media . '">' . $code . '</style>', $replaceTag ); | |
| 811 | - } | |
| 812 | - } else { | |
| 813 | - if ( $this->defer ) { | |
| 814 | - $preloadCssBlock = ''; | |
| 815 | - $noScriptCssBlock = "<noscript id=\"aonoscrcss\">"; | |
| 816 | - | |
| 817 | - $defer_inline_code = $this->defer_inline; | |
| 818 | - if ( ! empty( $defer_inline_code ) ) { | |
| 819 | - if ( apply_filters( 'autoptimize_filter_css_critcss_minify', true ) ) { | |
| 820 | - $iCssHash = md5( $defer_inline_code ); | |
| 821 | - $iCssCache = new autoptimizeCache( $iCssHash, 'css' ); | |
| 822 | - if ( $iCssCache->check() ) { | |
| 823 | - // we have the optimized inline CSS in cache. | |
| 824 | - $defer_inline_code = $iCssCache->retrieve(); | |
| 825 | - } else { | |
| 826 | - $cssmin = new autoptimizeCSSmin(); | |
| 827 | - $tmp_code = trim( $cssmin->run( $defer_inline_code ) ); | |
| 828 | - | |
| 829 | - if ( ! empty( $tmp_code ) ) { | |
| 830 | - $defer_inline_code = $tmp_code; | |
| 831 | - $iCssCache->cache( $defer_inline_code, 'text/css' ); | |
| 832 | - unset( $tmp_code ); | |
| 833 | - } | |
| 834 | - } | |
| 835 | - } | |
| 836 | - $code_out = '<style type="text/css" id="aoatfcss" media="all">' . $defer_inline_code . '</style>'; | |
| 837 | - $this->inject_in_html( $code_out, $replaceTag ); | |
| 838 | - } | |
| 839 | - } | |
| 840 | - | |
| 841 | - foreach ( $this->url as $media => $url ) { | |
| 842 | - $url = $this->url_replace_cdn( $url ); | |
| 843 | - | |
| 844 | - // Add the stylesheet either deferred (import at bottom) or normal links in head. | |
| 845 | - if ( $this->defer ) { | |
| 846 | - $preloadOnLoad = autoptimizeConfig::get_ao_css_preload_onload(); | |
| 847 | - | |
| 848 | - $preloadCssBlock .= '<link rel="preload" as="style" media="' . $media . '" href="' . $url . '" onload="' . $preloadOnLoad . '" />'; | |
| 849 | - $noScriptCssBlock .= '<link type="text/css" media="' . $media . '" href="' . $url . '" rel="stylesheet" />'; | |
| 850 | - } else { | |
| 851 | - // $this->inject_in_html('<link type="text/css" media="' . $media . '" href="' . $url . '" rel="stylesheet" />', $replaceTag); | |
| 852 | - if ( strlen( $this->csscode[$media] ) > $this->cssinlinesize ) { | |
| 853 | - $this->inject_in_html( '<link type="text/css" media="' . $media . '" href="' . $url . '" rel="stylesheet" />', $replaceTag ); | |
| 854 | - } elseif ( strlen( $this->csscode[$media] ) > 0 ) { | |
| 855 | - $this->inject_in_html( '<style type="text/css" media="' . $media . '">' . $this->csscode[$media] . '</style>', $replaceTag ); | |
| 856 | - } | |
| 857 | - } | |
| 858 | - } | |
| 859 | - | |
| 860 | - if ( $this->defer ) { | |
| 861 | - $preload_polyfill = autoptimizeConfig::get_ao_css_preload_polyfill(); | |
| 862 | - $noScriptCssBlock .= '</noscript>'; | |
| 863 | - $this->inject_in_html( $preloadCssBlock . $noScriptCssBlock, $replaceTag ); | |
| 864 | - | |
| 865 | - // Adds preload polyfill at end of body tag. | |
| 866 | - $this->inject_in_html( | |
| 867 | - apply_filters( 'autoptimize_css_preload_polyfill', $preload_polyfill ), | |
| 868 | - array( '</body>', 'before' ) | |
| 869 | - ); | |
| 870 | - } | |
| 871 | - } | |
| 872 | - | |
| 873 | - // Return the modified stylesheet. | |
| 874 | - return $this->content; | |
| 875 | - } | |
| 876 | - | |
| 877 | - static function fixurls( $file, $code ) | |
| 878 | - { | |
| 879 | - // Switch all imports to the url() syntax. | |
| 880 | - $code = preg_replace( '#@import ("|\')(.+?)\.css.*?("|\')#', '@import url("${2}.css")', $code ); | |
| 881 | - | |
| 882 | - if ( preg_match_all( self::ASSETS_REGEX, $code, $matches ) ) { | |
| 883 | - $file = str_replace( WP_ROOT_DIR, '/', $file ); | |
| 884 | - /** | |
| 885 | - * rollback as per https://github.com/futtta/autoptimize/issues/94 | |
| 886 | - * $file = str_replace( AUTOPTIMIZE_WP_CONTENT_NAME, '', $file ); | |
| 887 | - */ | |
| 888 | - $dir = dirname( $file ); // Like /themes/expound/css. | |
| 889 | - | |
| 890 | - /** | |
| 891 | - * $dir should not contain backslashes, since it's used to replace | |
| 892 | - * urls, but it can contain them when running on Windows because | |
| 893 | - * fixurls() is sometimes called with `ABSPATH . 'index.php'` | |
| 894 | - */ | |
| 895 | - $dir = str_replace( '\\', '/', $dir ); | |
| 896 | - unset( $file ); // not used below at all. | |
| 897 | - | |
| 898 | - $replace = array(); | |
| 899 | - foreach ( $matches[1] as $k => $url ) { | |
| 900 | - // Remove quotes. | |
| 901 | - $url = trim( $url, " \t\n\r\0\x0B\"'" ); | |
| 902 | - $noQurl = trim( $url, "\"'" ); | |
| 903 | - if ( $url !== $noQurl ) { | |
| 904 | - $removedQuotes = true; | |
| 905 | - } else { | |
| 906 | - $removedQuotes = false; | |
| 907 | - } | |
| 908 | - | |
| 909 | - if ( '' === $noQurl ) { | |
| 910 | - continue; | |
| 911 | - } | |
| 912 | - | |
| 913 | - $url = $noQurl; | |
| 914 | - if ( '/' === $url{0} || preg_match( '#^(https?://|ftp://|data:)#i', $url ) ) { | |
| 915 | - // URL is protocol-relative, host-relative or something we don't touch. | |
| 916 | - continue; | |
| 917 | - } else { | |
| 918 | - // Relative URL. | |
| 919 | - /** | |
| 920 | - * rollback as per https://github.com/futtta/autoptimize/issues/94 | |
| 921 | - * $newurl = preg_replace( '/https?:/', '', str_replace( ' ', '%20', AUTOPTIMIZE_WP_CONTENT_URL . str_replace( '//', '/', $dir . '/' . $url ) ) ); | |
| 922 | - */ | |
| 923 | - $newurl = preg_replace( '/https?:/', '', str_replace( ' ', '%20', AUTOPTIMIZE_WP_ROOT_URL . str_replace( '//', '/', $dir . '/' . $url ) ) ); | |
| 924 | - $newurl = apply_filters( 'autoptimize_filter_css_fixurl_newurl', $newurl ); | |
| 925 | - | |
| 926 | - /** | |
| 927 | - * Hash the url + whatever was behind potentially for replacement | |
| 928 | - * We must do this, or different css classes referencing the same bg image (but | |
| 929 | - * different parts of it, say, in sprites and such) loose their stuff... | |
| 930 | - */ | |
| 931 | - $hash = md5( $url . $matches[2][$k] ); | |
| 932 | - $code = str_replace( $matches[0][$k], $hash, $code ); | |
| 933 | - | |
| 934 | - if ( $removedQuotes ) { | |
| 935 | - $replace[$hash] = "url('" . $newurl . "')" . $matches[2][$k]; | |
| 936 | - } else { | |
| 937 | - $replace[$hash] = 'url(' . $newurl . ')' . $matches[2][$k]; | |
| 938 | - } | |
| 939 | - } | |
| 940 | - } | |
| 941 | - | |
| 942 | - $code = self::replace_longest_matches_first( $code, $replace ); | |
| 943 | - } | |
| 944 | - | |
| 945 | - return $code; | |
| 946 | - } | |
| 947 | - | |
| 948 | - private function ismovable( $tag ) | |
| 949 | - { | |
| 950 | - if ( ! $this->aggregate ) { | |
| 951 | - return false; | |
| 952 | - } | |
| 953 | - | |
| 954 | - if ( ! empty( $this->whitelist ) ) { | |
| 955 | - foreach ( $this->whitelist as $match ) { | |
| 956 | - if ( false !== strpos( $tag, $match ) ) { | |
| 957 | - return true; | |
| 958 | - } | |
| 959 | - } | |
| 960 | - // no match with whitelist. | |
| 961 | - return false; | |
| 962 | - } else { | |
| 963 | - if ( is_array( $this->dontmove ) && ! empty( $this->dontmove ) ) { | |
| 964 | - foreach ( $this->dontmove as $match ) { | |
| 965 | - if ( false !== strpos( $tag, $match ) ) { | |
| 966 | - // Matched something. | |
| 967 | - return false; | |
| 968 | - } | |
| 969 | - } | |
| 970 | - } | |
| 971 | - | |
| 972 | - // If we're here it's safe to move. | |
| 973 | - return true; | |
| 974 | - } | |
| 975 | - } | |
| 976 | - | |
| 977 | - private function can_inject_late( $cssPath, $css ) | |
| 978 | - { | |
| 979 | - $consider_minified_array = apply_filters( 'autoptimize_filter_css_consider_minified', false, $cssPath ); | |
| 980 | - if ( true !== $this->inject_min_late ) { | |
| 981 | - // late-inject turned off. | |
| 982 | - return false; | |
| 983 | - } elseif ( ( false === strpos( $cssPath, 'min.css' ) ) && ( str_replace( $consider_minified_array, '', $cssPath ) === $cssPath ) ) { | |
| 984 | - // file not minified based on filename & filter. | |
| 985 | - return false; | |
| 986 | - } elseif ( false !== strpos( $css, '@import' ) ) { | |
| 987 | - // can't late-inject files with imports as those need to be aggregated. | |
| 988 | - return false; | |
| 989 | - } elseif ( ( false !== strpos( $css, '@font-face' ) ) && ( apply_filters( 'autoptimize_filter_css_fonts_cdn', false ) === true ) && ( ! empty( $this->cdn_url ) ) ) { | |
| 990 | - // don't late-inject CSS with font-src's if fonts are set to be CDN'ed. | |
| 991 | - return false; | |
| 992 | - } elseif ( ( ( $this->datauris == true ) || ( ! empty( $this->cdn_url ) ) ) && preg_match( '#background[^;}]*url\(#Ui', $css ) ) { | |
| 993 | - // don't late-inject CSS with images if CDN is set OR if image inlining is on. | |
| 994 | - return false; | |
| 995 | - } else { | |
| 996 | - // phew, all is safe, we can late-inject. | |
| 997 | - return true; | |
| 998 | - } | |
| 999 | - } | |
| 1000 | - | |
| 1001 | - /** | |
| 1002 | - * Minifies (and cdn-replaces) a single local css file | |
| 1003 | - * and returns its (cached) url. | |
| 1004 | - * | |
| 1005 | - * @param string $filepath Filepath. | |
| 1006 | - * @param bool $cache_miss Optional. Force a cache miss. Default false. | |
| 1007 | - * | |
| 1008 | - * @return bool|string Url pointing to the minified css file or false. | |
| 1009 | - */ | |
| 1010 | - public function minify_single( $filepath, $cache_miss = false ) | |
| 1011 | - { | |
| 1012 | - $contents = $this->prepare_minify_single( $filepath ); | |
| 1013 | - | |
| 1014 | - if ( empty( $contents ) ) { | |
| 1015 | - return false; | |
| 1016 | - } | |
| 1017 | - | |
| 1018 | - // Check cache. | |
| 1019 | - $hash = 'single_' . md5( $contents ); | |
| 1020 | - $cache = new autoptimizeCache( $hash, 'css' ); | |
| 1021 | - | |
| 1022 | - // If not in cache already, minify... | |
| 1023 | - if ( ! $cache->check() || $cache_miss ) { | |
| 1024 | - // Fixurls... | |
| 1025 | - $contents = self::fixurls( $filepath, $contents ); | |
| 1026 | - // CDN-replace any referenced assets if needed... | |
| 1027 | - $contents = $this->replace_urls( $contents ); | |
| 1028 | - // Now minify... | |
| 1029 | - $cssmin = new autoptimizeCSSmin(); | |
| 1030 | - $contents = trim( $cssmin->run( $contents ) ); | |
| 1031 | - // Store in cache. | |
| 1032 | - $cache->cache( $contents, 'text/css' ); | |
| 1033 | - } | |
| 1034 | - | |
| 1035 | - $url = $this->build_minify_single_url( $cache ); | |
| 1036 | - | |
| 1037 | - return $url; | |
| 1038 | - } | |
| 1039 | - | |
| 1040 | - /** | |
| 1041 | - * Returns whether we're doing aggregation or not. | |
| 1042 | - * | |
| 1043 | - * @return bool | |
| 1044 | - */ | |
| 1045 | - public function aggregating() | |
| 1046 | - { | |
| 1047 | - return $this->aggregate; | |
| 1048 | - } | |
| 1049 | - | |
| 1050 | - public function getOptions() | |
| 1051 | - { | |
| 1052 | - return $this->options; | |
| 1053 | - } | |
| 1054 | - | |
| 1055 | - public function replaceOptions( $options ) | |
| 1056 | - { | |
| 1057 | - $this->options = $options; | |
| 1058 | - } | |
| 1059 | - | |
| 1060 | - public function setOption( $name, $value ) | |
| 1061 | - { | |
| 1062 | - $this->options[$name] = $value; | |
| 1063 | - $this->$name = $value; | |
| 1064 | - } | |
| 1065 | - | |
| 1066 | - public function getOption( $name ) | |
| 1067 | - { | |
| 1068 | - return $this->options[$name]; | |
| 1069 | - } | |
| 64 | + $this->css[] = array($media,$path); | |
| 65 | + }else{ | |
| 66 | + //Link is dynamic (.php etc) | |
| 67 | + $tag = ''; | |
| 68 | + } | |
| 69 | + }else{ | |
| 70 | + //<style> | |
| 71 | + preg_match('#<style.*>(.*)</style>#Usmi',$tag,$code); | |
| 72 | + $code = preg_replace('#^.*<!\[CDATA\[(?:\s*\*/)?(.*)(?://|/\*)\s*?\]\]>.*$#sm','$1',$code[1]); | |
| 73 | + $this->css[] = array('all','INLINE;'.$code); | |
| 74 | + } | |
| 75 | + | |
| 76 | + //Remove the original style tag | |
| 77 | + $this->content = str_replace($tag,'',$this->content); | |
| 78 | + } | |
| 79 | + | |
| 80 | + return true; | |
| 81 | + } | |
| 82 | + | |
| 83 | + //No styles :( | |
| 84 | + return false; | |
| 85 | + } | |
| 86 | + | |
| 87 | + //Joins and optimizes CSS | |
| 88 | + public function minify() | |
| 89 | + { | |
| 90 | + foreach($this->css as $group) | |
| 91 | + { | |
| 92 | + list($media,$css) = $group; | |
| 93 | + if(preg_match('#^INLINE;#',$css)) | |
| 94 | + { | |
| 95 | + //<style> | |
| 96 | + $css = preg_replace('#^INLINE;#','',$css); | |
| 97 | + $css = $this->fixurls(ABSPATH.'/index.php',$css); | |
| 98 | + if(!isset($this->csscode['all'])) | |
| 99 | + $this->csscode['all'] = ''; | |
| 100 | + $this->csscode['all'] .= "\n/*FILESTART*/".$css; | |
| 101 | + }else{ | |
| 102 | + //<link> | |
| 103 | + if($css !== false && file_exists($css) && is_readable($css)) | |
| 104 | + { | |
| 105 | + $css = $this->fixurls($css,file_get_contents($css)); | |
| 106 | + foreach($media as $elem) | |
| 107 | + { | |
| 108 | + if(!isset($this->csscode[$elem])) | |
| 109 | + $this->csscode[$elem] = ''; | |
| 110 | + $this->csscode[$elem] .= "\n/*FILESTART*/".$css; | |
| 111 | + } | |
| 112 | + }/*else{ | |
| 113 | + //Couldn't read CSS. Maybe getpath isn't working? | |
| 114 | + }*/ | |
| 115 | + } | |
| 116 | + } | |
| 117 | + | |
| 118 | + //Check for duplicate code | |
| 119 | + $md5list = array(); | |
| 120 | + $tmpcss = $this->csscode; | |
| 121 | + foreach($tmpcss as $media => $code) | |
| 122 | + { | |
| 123 | + $md5sum = md5($code); | |
| 124 | + $medianame = $media; | |
| 125 | + foreach($md5list as $med => $sum) | |
| 126 | + { | |
| 127 | + //If same code | |
| 128 | + if($sum === $md5sum) | |
| 129 | + { | |
| 130 | + //Add the merged code | |
| 131 | + $medianame = $med.', '.$media; | |
| 132 | + $this->csscode[$medianame] = $code; | |
| 133 | + $md5list[$medianame] = $md5list[$med]; | |
| 134 | + unset($this->csscode[$med], $this->csscode[$media]); | |
| 135 | + unset($md5list[$med]); | |
| 136 | + } | |
| 137 | + } | |
| 138 | + $md5list[$medianame] = $md5sum; | |
| 139 | + } | |
| 140 | + unset($tmpcss); | |
| 141 | + | |
| 142 | + //Manage @imports, while is for recursive import management | |
| 143 | + foreach($this->csscode as &$thiscss) | |
| 144 | + { | |
| 145 | + //Flag to trigger import reconstitution | |
| 146 | + $fiximports = false; | |
| 147 | + while(preg_match_all('#@import.*(?:;|$)#Um',$thiscss,$matches)) | |
| 148 | + { | |
| 149 | + foreach($matches[0] as $import) | |
| 150 | + { | |
| 151 | + $url = trim(preg_replace('#^.*((?:https?|ftp)://.*\.css).*$#','$1',$import)," \t\n\r\0\x0B\"'"); | |
| 152 | + $path = $this->getpath($url); | |
| 153 | + if(file_exists($path) && is_readable($path)) | |
| 154 | + { | |
| 155 | + $code = $this->fixurls($path,file_get_contents($path)); | |
| 156 | + /*$media = preg_replace('#^.*(?:\)|"|\')(.*)(?:\s|;).*$#','$1',$import); | |
| 157 | + $media = array_map('trim',explode(' ',$media)); | |
| 158 | + if(empty($media)) | |
| 159 | + { | |
| 160 | + $thiscss = [...] (Line under) | |
| 161 | + }else{ | |
| 162 | + //media in @import - how should I handle these? | |
| 163 | + //TODO: Infinite recursion! | |
| 164 | + }*/ | |
| 165 | + $thiscss = preg_replace('#(/\*FILESTART\*/.*)'.preg_quote($import,'#').'#Us','/*FILESTART2*/'.$code.'$1',$thiscss); | |
| 166 | + }else{ | |
| 167 | + //getpath is not working? | |
| 168 | + //Encode so preg_match doesn't see it | |
| 169 | + $thiscss = str_replace($import,'/*IMPORT*/'.base64_encode($import).'/*IMPORT*/',$thiscss); | |
| 170 | + $fiximports = true; | |
| 171 | + } | |
| 172 | + } | |
| 173 | + $thiscss = preg_replace('#/\*FILESTART\*/#','',$thiscss); | |
| 174 | + $thiscss = preg_replace('#/\*FILESTART2\*/#','/*FILESTART*/',$thiscss); | |
| 175 | + } | |
| 176 | + | |
| 177 | + //Recover imports | |
| 178 | + if($fiximports) | |
| 179 | + { | |
| 180 | + $thiscss = preg_replace('#/\*IMPORT\*/(.*)/\*IMPORT\*/#Use','base64_decode("$1")',$thiscss); | |
| 181 | + } | |
| 182 | + } | |
| 183 | + unset($thiscss); | |
| 184 | + | |
| 185 | + //$this->csscode has all the uncompressed code now. | |
| 186 | + $mhtmlcount = 0; | |
| 187 | + foreach($this->csscode as &$code) | |
| 188 | + { | |
| 189 | + //Check for already-minified code | |
| 190 | + $hash = md5($code); | |
| 191 | + $ccheck = new autoptimizeCache($hash,'css'); | |
| 192 | + if($ccheck->check()) | |
| 193 | + { | |
| 194 | + $code = $ccheck->retrieve(); | |
| 195 | + $this->hashmap[md5($code)] = $hash; | |
| 196 | + continue; | |
| 197 | + } | |
| 198 | + unset($ccheck); | |
| 199 | + | |
| 200 | + $imgreplace = array(); | |
| 201 | + //Do the imaging! | |
| 202 | + if($this->datauris == true && function_exists('base64_encode') && preg_match_all('#(background[^;}]*url\((.*)\)[^;}]*)(?:;|$|})#Usm',$code,$matches)) | |
| 203 | + { | |
| 204 | + foreach($matches[2] as $count => $quotedurl) | |
| 205 | + { | |
| 206 | + $url = trim($quotedurl," \t\n\r\0\x0B\"'"); | |
| 207 | + $path = $this->getpath($url); | |
| 208 | + if($path != false && preg_match('#\.(jpe?j|png|gif|bmp)$#',$path) && file_exists($path) && is_readable($path) && filesize($path) <= 5120) | |
| 209 | + { | |
| 210 | + //It's an image | |
| 211 | + //Get type | |
| 212 | + switch(end(explode('.',$path))) | |
| 213 | + { | |
| 214 | + case 'jpej': | |
| 215 | + case 'jpg': | |
| 216 | + $dataurihead = 'data:image/jpeg;base64,'; | |
| 217 | + break; | |
| 218 | + case 'gif': | |
| 219 | + $dataurihead = 'data:image/gif;base64,'; | |
| 220 | + break; | |
| 221 | + case 'png': | |
| 222 | + $dataurihead = 'data:image/png;base64,'; | |
| 223 | + break; | |
| 224 | + case 'bmp': | |
| 225 | + $dataurihead = 'data:image/bmp;base64,'; | |
| 226 | + break; | |
| 227 | + default: | |
| 228 | + $dataurihead = 'data:application/octet-stream;base64,'; | |
| 229 | + } | |
| 230 | + | |
| 231 | + //Encode the data | |
| 232 | + $base64data = base64_encode(file_get_contents($path)); | |
| 233 | + | |
| 234 | + //Add it to the list for replacement | |
| 235 | + $imgreplace[$matches[1][$count]] = str_replace($quotedurl,$dataurihead.$base64data,$matches[1][$count]).";\n*".str_replace($quotedurl,'mhtml:%%MHTML%%!'.$mhtmlcount,$matches[1][$count]).";\n_".$matches[1][$count].';'; | |
| 236 | + | |
| 237 | + //Store image on the mhtml document | |
| 238 | + $this->mhtml .= "--_\r\nContent-Location:{$mhtmlcount}\r\nContent-Transfer-Encoding:base64\r\n\r\n{$base64data}\r\n"; | |
| 239 | + $mhtmlcount++; | |
| 240 | + } | |
| 241 | + } | |
| 242 | + //Replace the images | |
| 243 | + $code = str_replace(array_keys($imgreplace),array_values($imgreplace),$code); | |
| 244 | + } | |
| 245 | + | |
| 246 | + //Minify | |
| 247 | + if($this->yui == false && class_exists('Minify_CSS_Compressor')) | |
| 248 | + { | |
| 249 | + $code = trim(Minify_CSS_Compressor::process($code)); | |
| 250 | + }elseif($this->yui == true && autoptimizeYUI::available()){ | |
| 251 | + $code = autoptimizeYUI::compress('css',$code); | |
| 252 | + } | |
| 253 | + | |
| 254 | + $this->hashmap[md5($code)] = $hash; | |
| 255 | + } | |
| 256 | + unset($code); | |
| 257 | + return true; | |
| 258 | + } | |
| 259 | + | |
| 260 | + //Caches the CSS in uncompressed, deflated and gzipped form. | |
| 261 | + public function cache() | |
| 262 | + { | |
| 263 | + if($this->datauris) | |
| 264 | + { | |
| 265 | + //MHTML Preparation | |
| 266 | + $this->mhtml = "/*\r\nContent-Type: multipart/related; boundary=\"_\"\r\n\r\n".$this->mhtml."*/\r\n"; | |
| 267 | + $md5 = md5($this->mhtml); | |
| 268 | + $cache = new autoptimizeCache($md5,'txt'); | |
| 269 | + if(!$cache->check()) | |
| 270 | + { | |
| 271 | + //Cache our images for IE | |
| 272 | + $cache->cache($this->mhtml,'text/plain'); | |
| 273 | + } | |
| 274 | + $mhtml = AUTOPTIMIZE_CACHE_URL.$cache->getname(); | |
| 275 | + } | |
| 276 | + | |
| 277 | + //CSS cache | |
| 278 | + foreach($this->csscode as $media => $code) | |
| 279 | + { | |
| 280 | + if($this->datauris) | |
| 281 | + { | |
| 282 | + //Images for ie! Get the right url | |
| 283 | + $code = str_replace('%%MHTML%%',$mhtml,$code); | |
| 284 | + } | |
| 285 | + | |
| 286 | + $md5 = $this->hashmap[md5($code)]; | |
| 287 | + $cache = new autoptimizeCache($md5,'css'); | |
| 288 | + if(!$cache->check()) | |
| 289 | + { | |
| 290 | + //Cache our code | |
| 291 | + $cache->cache($code,'text/css'); | |
| 292 | + } | |
| 293 | + $this->url[$media] = AUTOPTIMIZE_CACHE_URL.$cache->getname(); | |
| 294 | + } | |
| 295 | + } | |
| 296 | + | |
| 297 | + //Returns the content | |
| 298 | + public function getcontent() | |
| 299 | + { | |
| 300 | + //Restore IE hacks | |
| 301 | + $this->content = preg_replace('#%%IEHACK%%(.*)%%IEHACK%%#Usie','base64_decode("$1")',$this->content); | |
| 302 | + | |
| 303 | + //Restore the full content | |
| 304 | + if(!empty($this->restofcontent)) | |
| 305 | + { | |
| 306 | + $this->content .= $this->restofcontent; | |
| 307 | + $this->restofcontent = ''; | |
| 308 | + } | |
| 309 | + | |
| 310 | + //Add the new stylesheets | |
| 311 | + foreach($this->url as $media => $url) | |
| 312 | + { | |
| 313 | + $this->content = str_replace('</head>','<link type="text/css" media="'.$media.'" href="'.$url.'" rel="stylesheet" /></head>',$this->content); | |
| 314 | + } | |
| 315 | + | |
| 316 | + //Return the modified stylesheet | |
| 317 | + return $this->content; | |
| 318 | + } | |
| 319 | + | |
| 320 | + private function fixurls($file,$code) | |
| 321 | + { | |
| 322 | + $file = str_replace(ABSPATH,'/',$file); //Sth like /wp-content/file.css | |
| 323 | + $dir = dirname($file); //Like /wp-content | |
| 324 | + | |
| 325 | + if(preg_match_all('#url\((.*)\)#Usi',$code,$matches)) | |
| 326 | + { | |
| 327 | + $replace = array(); | |
| 328 | + foreach($matches[1] as $k => $url) | |
| 329 | + { | |
| 330 | + //Remove quotes | |
| 331 | + $url = trim($url," \t\n\r\0\x0B\"'"); | |
| 332 | + if(substr($url,0,1)=='/' || preg_match('#^(https?|ftp)://#i',$url)) | |
| 333 | + { | |
| 334 | + //URL is absolute | |
| 335 | + continue; | |
| 336 | + }else{ | |
| 337 | + //relative URL. Let's fix it! | |
| 338 | + $newurl = get_settings('home').str_replace('//','/',$dir.'/'.$url); //http://yourblog.com/wp-content/../image.png | |
| 339 | + $hash = md5($url); | |
| 340 | + $code = str_replace($matches[0][$k],$hash,$code); | |
| 341 | + $replace[$hash] = 'url('.$newurl.')'; | |
| 342 | + } | |
| 343 | + } | |
| 344 | + | |
| 345 | + //Do the replacing here to avoid breaking URLs | |
| 346 | + $code = str_replace(array_keys($replace),array_values($replace),$code); | |
| 347 | + } | |
| 348 | + | |
| 349 | + return $code; | |
| 350 | + } | |
| 1070 | 351 | } |
