| @@ -1,704 +1,1337 @@ | ||
| 1 | -<?php | |
| 2 | -if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly | |
| 3 | - | |
| 4 | -class autoptimizeStyles extends autoptimizeBase { | |
| 5 | - | |
| 6 | - const ASSETS_REGEX = '/url\s*\(\s*(?!["\']?data:)(?![\'|\"]?[\#|\%|])([^)]+)\s*\)([^;},\s]*)/i'; | |
| 7 | - | |
| 8 | - private $css = array(); | |
| 9 | - private $csscode = array(); | |
| 10 | - private $url = array(); | |
| 11 | - private $restofcontent = ''; | |
| 12 | - private $datauris = false; | |
| 13 | - private $hashmap = array(); | |
| 14 | - private $alreadyminified = false; | |
| 15 | - private $inline = false; | |
| 16 | - private $defer = false; | |
| 17 | - private $defer_inline = false; | |
| 18 | - private $whitelist = ''; | |
| 19 | - private $cssinlinesize = ''; | |
| 20 | - private $cssremovables = array(); | |
| 21 | - private $include_inline = false; | |
| 22 | - private $inject_min_late = ''; | |
| 23 | - | |
| 24 | - //Reads the page and collects style tags | |
| 25 | - public function read($options) { | |
| 26 | - $noptimizeCSS = apply_filters( 'autoptimize_filter_css_noptimize', false, $this->content ); | |
| 27 | - if ($noptimizeCSS) return false; | |
| 28 | - | |
| 29 | - $whitelistCSS = apply_filters( 'autoptimize_filter_css_whitelist', '', $this->content ); | |
| 30 | - if (!empty($whitelistCSS)) { | |
| 31 | - $this->whitelist = array_filter(array_map('trim',explode(",",$whitelistCSS))); | |
| 32 | - } | |
| 33 | - | |
| 34 | - $removableCSS = apply_filters( 'autoptimize_filter_css_removables','' ); | |
| 35 | - if (!empty($removableCSS)) { | |
| 36 | - $this->cssremovables = array_filter(array_map('trim',explode(",",$removableCSS))); | |
| 37 | - } | |
| 38 | - | |
| 39 | - $this->cssinlinesize = apply_filters('autoptimize_filter_css_inlinesize',256); | |
| 40 | - | |
| 41 | - // filter to "late inject minified CSS", default to true for now (it is faster) | |
| 42 | - $this->inject_min_late = apply_filters('autoptimize_filter_css_inject_min_late',true); | |
| 43 | - | |
| 44 | - // Remove everything that's not the header | |
| 45 | - if ( apply_filters('autoptimize_filter_css_justhead',$options['justhead']) == true ) { | |
| 46 | - $content = explode('</head>',$this->content,2); | |
| 47 | - $this->content = $content[0].'</head>'; | |
| 48 | - $this->restofcontent = $content[1]; | |
| 49 | - } | |
| 50 | - | |
| 51 | - // include inline? | |
| 52 | - if( apply_filters('autoptimize_css_include_inline',$options['include_inline']) == true ) { | |
| 53 | - $this->include_inline = true; | |
| 54 | - } | |
| 55 | - | |
| 56 | - // what CSS shouldn't be autoptimized | |
| 57 | - $excludeCSS = $options['css_exclude']; | |
| 58 | - $excludeCSS = apply_filters( 'autoptimize_filter_css_exclude', $excludeCSS, $this->content ); | |
| 59 | - if ($excludeCSS!=="") { | |
| 60 | - $this->dontmove = array_filter(array_map('trim',explode(",",$excludeCSS))); | |
| 61 | - } else { | |
| 62 | - $this->dontmove = array(); | |
| 63 | - } | |
| 64 | - | |
| 65 | - // forcefully exclude CSS with data-noptimize attrib | |
| 66 | - $this->dontmove[]="data-noptimize"; | |
| 67 | - | |
| 68 | - // should we defer css? | |
| 69 | - // value: true/ false | |
| 70 | - $this->defer = $options['defer']; | |
| 71 | - $this->defer = apply_filters( 'autoptimize_filter_css_defer', $this->defer, $this->content ); | |
| 72 | - | |
| 73 | - // should we inline while deferring? | |
| 74 | - // value: inlined CSS | |
| 75 | - $this->defer_inline = $options['defer_inline']; | |
| 76 | - $this->defer_inline = apply_filters( 'autoptimize_filter_css_defer_inline', $this->defer_inline, $this->content ); | |
| 77 | - | |
| 78 | - // should we inline? | |
| 79 | - // value: true/ false | |
| 80 | - $this->inline = $options['inline']; | |
| 81 | - $this->inline = apply_filters( 'autoptimize_filter_css_inline', $this->inline, $this->content ); | |
| 82 | - | |
| 83 | - // get cdn url | |
| 84 | - $this->cdn_url = $options['cdn_url']; | |
| 85 | - | |
| 86 | - // Store data: URIs setting for later use | |
| 87 | - $this->datauris = $options['datauris']; | |
| 88 | - | |
| 89 | - // noptimize me | |
| 90 | - $this->content = $this->hide_noptimize($this->content); | |
| 91 | - | |
| 92 | - // exclude (no)script, as those may contain CSS which should be left as is | |
| 93 | - if ( strpos( $this->content, '<script' ) !== false ) { | |
| 94 | - $this->content = preg_replace_callback( | |
| 95 | - '#<(?:no)?script.*?<\/(?:no)?script>#is', | |
| 96 | - create_function( | |
| 97 | - '$matches', | |
| 98 | - 'return "%%SCRIPT".AUTOPTIMIZE_HASH."%%".base64_encode($matches[0])."%%SCRIPT%%";' | |
| 99 | - ), | |
| 100 | - $this->content | |
| 101 | - ); | |
| 102 | - } | |
| 103 | - | |
| 104 | - // Save IE hacks | |
| 105 | - $this->content = $this->hide_iehacks($this->content); | |
| 106 | - | |
| 107 | - // hide comments | |
| 108 | - $this->content = $this->hide_comments($this->content); | |
| 109 | - | |
| 110 | - // Get <style> and <link> | |
| 111 | - if(preg_match_all('#(<style[^>]*>.*</style>)|(<link[^>]*stylesheet[^>]*>)#Usmi',$this->content,$matches)) { | |
| 112 | - foreach($matches[0] as $tag) { | |
| 113 | - if ($this->isremovable($tag,$this->cssremovables)) { | |
| 114 | - $this->content = str_replace($tag,'',$this->content); | |
| 115 | - } else if ($this->ismovable($tag)) { | |
| 116 | - // Get the media | |
| 117 | - if(strpos($tag,'media=')!==false) { | |
| 118 | - preg_match('#media=(?:"|\')([^>]*)(?:"|\')#Ui',$tag,$medias); | |
| 119 | - $medias = explode(',',$medias[1]); | |
| 120 | - $media = array(); | |
| 121 | - foreach($medias as $elem) { | |
| 122 | - if (empty($elem)) { $elem="all"; } | |
| 123 | - $media[] = $elem; | |
| 124 | - } | |
| 125 | - } else { | |
| 126 | - // No media specified - applies to all | |
| 127 | - $media = array('all'); | |
| 128 | - } | |
| 129 | - $media = apply_filters( 'autoptimize_filter_css_tagmedia',$media,$tag ); | |
| 130 | - | |
| 131 | - if(preg_match('#<link.*href=("|\')(.*)("|\')#Usmi',$tag,$source)) { | |
| 132 | - // <link> | |
| 133 | - $explUrl = explode('?',$source[2],2); | |
| 134 | - $url = $explUrl[0]; | |
| 135 | - $path = $this->getpath($url); | |
| 136 | - | |
| 137 | - if($path!==false && preg_match('#\.css$#',$path)) { | |
| 138 | - // Good link | |
| 139 | - $this->css[] = array($media,$path); | |
| 140 | - }else{ | |
| 141 | - // Link is dynamic (.php etc) | |
| 142 | - $tag = ''; | |
| 143 | - } | |
| 144 | - } else { | |
| 145 | - // inline css in style tags can be wrapped in comment tags, so restore comments | |
| 146 | - $tag = $this->restore_comments($tag); | |
| 147 | - preg_match('#<style.*>(.*)</style>#Usmi',$tag,$code); | |
| 148 | - | |
| 149 | - // and re-hide them to be able to to the removal based on tag | |
| 150 | - $tag = $this->hide_comments($tag); | |
| 151 | - | |
| 152 | - if ( $this->include_inline ) { | |
| 153 | - $code = preg_replace('#^.*<!\[CDATA\[(?:\s*\*/)?(.*)(?://|/\*)\s*?\]\]>.*$#sm','$1',$code[1]); | |
| 154 | - $this->css[] = array($media,'INLINE;'.$code); | |
| 155 | - } else { | |
| 156 | - $tag = ''; | |
| 157 | - } | |
| 158 | - } | |
| 159 | - | |
| 160 | - // Remove the original style tag | |
| 161 | - $this->content = str_replace($tag,'',$this->content); | |
| 162 | - } else { | |
| 163 | - // excluded CSS, minify if getpath | |
| 164 | - if (preg_match('#<link.*href=("|\')(.*)("|\')#Usmi',$tag,$source)) { | |
| 165 | - $explUrl = explode('?',$source[2],2); | |
| 166 | - $url = $explUrl[0]; | |
| 167 | - $path = $this->getpath($url); | |
| 168 | - | |
| 169 | - if ($path && apply_filters('autoptimize_filter_css_minify_excluded',false)) { | |
| 170 | - $_CachedMinifiedUrl = $this->minify_single($path); | |
| 171 | - | |
| 172 | - if (!empty($_CachedMinifiedUrl)) { | |
| 173 | - // replace orig URL with URL to cache | |
| 174 | - $newTag = str_replace($url, $_CachedMinifiedUrl, $tag); | |
| 175 | - } else { | |
| 176 | - $newTag = $tag; | |
| 177 | - } | |
| 178 | - | |
| 179 | - // remove querystring from URL | |
| 180 | - if ( !empty($explUrl[1]) ) { | |
| 181 | - $newTag = str_replace("?".$explUrl[1],"",$newTag); | |
| 182 | - } | |
| 183 | - | |
| 184 | - // and replace | |
| 185 | - $this->content = str_replace($tag,$newTag,$this->content); | |
| 186 | - } | |
| 187 | - } | |
| 188 | - } | |
| 189 | - } | |
| 190 | - return true; | |
| 191 | - } | |
| 192 | - // Really, no styles? | |
| 193 | - return false; | |
| 194 | - } | |
| 195 | - | |
| 196 | - // Joins and optimizes CSS | |
| 197 | - public function minify() { | |
| 198 | - foreach($this->css as $group) { | |
| 199 | - list($media,$css) = $group; | |
| 200 | - if(preg_match('#^INLINE;#',$css)) { | |
| 201 | - // <style> | |
| 202 | - $css = preg_replace('#^INLINE;#','',$css); | |
| 203 | - $css = $this->fixurls(ABSPATH.'/index.php',$css); | |
| 204 | - $tmpstyle = apply_filters( 'autoptimize_css_individual_style', $css, "" ); | |
| 205 | - if ( has_filter('autoptimize_css_individual_style') && !empty($tmpstyle) ) { | |
| 206 | - $css=$tmpstyle; | |
| 207 | - $this->alreadyminified=true; | |
| 208 | - } | |
| 209 | - } else { | |
| 210 | - //<link> | |
| 211 | - if($css !== false && file_exists($css) && is_readable($css)) { | |
| 212 | - $cssPath = $css; | |
| 213 | - $cssContents = file_get_contents($cssPath); | |
| 214 | - $cssHash = md5($cssContents); | |
| 215 | - $css = $this->fixurls($cssPath,$cssContents); | |
| 216 | - $css = preg_replace('/\x{EF}\x{BB}\x{BF}/','',$css); | |
| 217 | - $tmpstyle = apply_filters( 'autoptimize_css_individual_style', $css, $cssPath ); | |
| 218 | - if (has_filter('autoptimize_css_individual_style') && !empty($tmpstyle)) { | |
| 219 | - $css=$tmpstyle; | |
| 220 | - $this->alreadyminified=true; | |
| 221 | - } else if ($this->can_inject_late($cssPath,$css)) { | |
| 222 | - $css="/*!%%INJECTLATER%%".base64_encode($cssPath)."|".$cssHash."%%INJECTLATER%%*/"; | |
| 223 | - } | |
| 224 | - } else { | |
| 225 | - // Couldn't read CSS. Maybe getpath isn't working? | |
| 226 | - $css = ''; | |
| 227 | - } | |
| 228 | - } | |
| 229 | - | |
| 230 | - foreach($media as $elem) { | |
| 231 | - if(!isset($this->csscode[$elem])) | |
| 232 | - $this->csscode[$elem] = ''; | |
| 233 | - $this->csscode[$elem] .= "\n/*FILESTART*/".$css; | |
| 234 | - } | |
| 235 | - } | |
| 236 | - | |
| 237 | - // Check for duplicate code | |
| 238 | - $md5list = array(); | |
| 239 | - $tmpcss = $this->csscode; | |
| 240 | - foreach($tmpcss as $media => $code) { | |
| 241 | - $md5sum = md5($code); | |
| 242 | - $medianame = $media; | |
| 243 | - foreach($md5list as $med => $sum) { | |
| 244 | - // If same code | |
| 245 | - if($sum === $md5sum) { | |
| 246 | - //Add the merged code | |
| 247 | - $medianame = $med.', '.$media; | |
| 248 | - $this->csscode[$medianame] = $code; | |
| 249 | - $md5list[$medianame] = $md5list[$med]; | |
| 250 | - unset($this->csscode[$med], $this->csscode[$media]); | |
| 251 | - unset($md5list[$med]); | |
| 252 | - } | |
| 253 | - } | |
| 254 | - $md5list[$medianame] = $md5sum; | |
| 255 | - } | |
| 256 | - unset($tmpcss); | |
| 257 | - | |
| 258 | - // Manage @imports, while is for recursive import management | |
| 259 | - foreach ($this->csscode as &$thiscss) { | |
| 260 | - // Flag to trigger import reconstitution and var to hold external imports | |
| 261 | - $fiximports = false; | |
| 262 | - $external_imports = ""; | |
| 263 | - | |
| 264 | - // remove comments to avoid importing commented-out imports | |
| 265 | - $thiscss_nocomments = preg_replace('#/\*.*\*/#Us','',$thiscss); | |
| 266 | - | |
| 267 | - while(preg_match_all('#@import +(?:url)?(?:(?:\\(([\"\']?)(?:[^\"\')]+)\\1\\)|([\"\'])(?:[^\"\']+)\\2)(?:[^,;\"\']+(?:,[^,;\"\']+)*)?)(?:;)#m',$thiscss_nocomments,$matches)) { | |
| 268 | - foreach($matches[0] as $import) { | |
| 269 | - if ($this->isremovable($import,$this->cssremovables)) { | |
| 270 | - $thiscss = str_replace($import,'',$thiscss); | |
| 271 | - $import_ok = true; | |
| 272 | - } else { | |
| 273 | - $url = trim(preg_replace('#^.*((?:https?:|ftp:)?//.*\.css).*$#','$1',trim($import))," \t\n\r\0\x0B\"'"); | |
| 274 | - $path = $this->getpath($url); | |
| 275 | - $import_ok = false; | |
| 276 | - if (file_exists($path) && is_readable($path)) { | |
| 277 | - $code = addcslashes($this->fixurls($path,file_get_contents($path)),"\\"); | |
| 278 | - $code = preg_replace('/\x{EF}\x{BB}\x{BF}/','',$code); | |
| 279 | - $tmpstyle = apply_filters( 'autoptimize_css_individual_style', $code, "" ); | |
| 280 | - if ( has_filter('autoptimize_css_individual_style') && !empty($tmpstyle)) { | |
| 281 | - $code=$tmpstyle; | |
| 282 | - $this->alreadyminified=true; | |
| 283 | - } else if ($this->can_inject_late($path,$code)) { | |
| 284 | - $code="/*!%%INJECTLATER".AUTOPTIMIZE_HASH."%%".base64_encode($path)."|".md5($code)."%%INJECTLATER%%*/"; | |
| 285 | - } | |
| 286 | - | |
| 287 | - if(!empty($code)) { | |
| 288 | - $tmp_thiscss = preg_replace('#(/\*FILESTART\*/.*)'.preg_quote($import,'#').'#Us','/*FILESTART2*/'.$code.'$1',$thiscss); | |
| 289 | - if (!empty($tmp_thiscss)) { | |
| 290 | - $thiscss = $tmp_thiscss; | |
| 291 | - $import_ok = true; | |
| 292 | - unset($tmp_thiscss); | |
| 293 | - } | |
| 294 | - unset($code); | |
| 295 | - } | |
| 296 | - } | |
| 297 | - } | |
| 298 | - | |
| 299 | - if (!$import_ok) { | |
| 300 | - // external imports and general fall-back | |
| 301 | - $external_imports .= $import; | |
| 302 | - $thiscss = str_replace($import,'',$thiscss); | |
| 303 | - $fiximports = true; | |
| 304 | - } | |
| 305 | - } | |
| 306 | - $thiscss = preg_replace('#/\*FILESTART\*/#','',$thiscss); | |
| 307 | - $thiscss = preg_replace('#/\*FILESTART2\*/#','/*FILESTART*/',$thiscss); | |
| 308 | - | |
| 309 | - // and update $thiscss_nocomments before going into next iteration in while loop | |
| 310 | - $thiscss_nocomments=preg_replace('#/\*.*\*/#Us','',$thiscss); | |
| 311 | - } | |
| 312 | - unset($thiscss_nocomments); | |
| 313 | - | |
| 314 | - // add external imports to top of aggregated CSS | |
| 315 | - if($fiximports) { | |
| 316 | - $thiscss=$external_imports.$thiscss; | |
| 317 | - } | |
| 318 | - } | |
| 319 | - unset($thiscss); | |
| 320 | - | |
| 321 | - // $this->csscode has all the uncompressed code now. | |
| 322 | - foreach($this->csscode as &$code) { | |
| 323 | - // Check for already-minified code | |
| 324 | - $hash = md5($code); | |
| 325 | - do_action( 'autoptimize_action_css_hash', $hash ); | |
| 326 | - $ccheck = new autoptimizeCache($hash,'css'); | |
| 327 | - if($ccheck->check()) { | |
| 328 | - $code = $ccheck->retrieve(); | |
| 329 | - $this->hashmap[md5($code)] = $hash; | |
| 330 | - continue; | |
| 331 | - } | |
| 332 | - unset($ccheck); | |
| 333 | - | |
| 334 | - // Do the imaging! | |
| 335 | - $imgreplace = array(); | |
| 336 | - preg_match_all( self::ASSETS_REGEX, $code, $matches ); | |
| 337 | - | |
| 338 | - if ( ($this->datauris == true) && (function_exists('base64_encode')) && (is_array($matches)) ) { | |
| 339 | - foreach($matches[1] as $count => $quotedurl) { | |
| 340 | - $iurl = trim($quotedurl," \t\n\r\0\x0B\"'"); | |
| 341 | - | |
| 342 | - // if querystring, remove it from url | |
| 343 | - if (strpos($iurl,'?') !== false) { $iurl = strtok($iurl,'?'); } | |
| 344 | - | |
| 345 | - $ipath = $this->getpath($iurl); | |
| 346 | - | |
| 347 | - $datauri_max_size = 4096; | |
| 348 | - $datauri_max_size = (int) apply_filters( 'autoptimize_filter_css_datauri_maxsize', $datauri_max_size ); | |
| 349 | - $datauri_exclude = apply_filters( 'autoptimize_filter_css_datauri_exclude', ""); | |
| 350 | - if (!empty($datauri_exclude)) { | |
| 351 | - $no_datauris=array_filter(array_map('trim',explode(",",$datauri_exclude))); | |
| 352 | - foreach ($no_datauris as $no_datauri) { | |
| 353 | - if (strpos($iurl,$no_datauri)!==false) { | |
| 354 | - $ipath=false; | |
| 355 | - break; | |
| 356 | - } | |
| 357 | - } | |
| 358 | - } | |
| 359 | - | |
| 360 | - if($ipath != false && preg_match('#\.(jpe?g|png|gif|bmp)$#i',$ipath) && file_exists($ipath) && is_readable($ipath) && filesize($ipath) <= $datauri_max_size) { | |
| 361 | - $ihash=md5($ipath); | |
| 362 | - $icheck = new autoptimizeCache($ihash,'img'); | |
| 363 | - if($icheck->check()) { | |
| 364 | - // we have the base64 image in cache | |
| 365 | - $headAndData=$icheck->retrieve(); | |
| 366 | - $_base64data=explode(";base64,",$headAndData); | |
| 367 | - $base64data=$_base64data[1]; | |
| 368 | - } else { | |
| 369 | - // It's an image and we don't have it in cache, get the type | |
| 370 | - $explA=explode('.',$ipath); | |
| 371 | - $type=end($explA); | |
| 372 | - | |
| 373 | - switch($type) { | |
| 374 | - case 'jpeg': | |
| 375 | - $dataurihead = 'data:image/jpeg;base64,'; | |
| 376 | - break; | |
| 377 | - case 'jpg': | |
| 378 | - $dataurihead = 'data:image/jpeg;base64,'; | |
| 379 | - break; | |
| 380 | - case 'gif': | |
| 381 | - $dataurihead = 'data:image/gif;base64,'; | |
| 382 | - break; | |
| 383 | - case 'png': | |
| 384 | - $dataurihead = 'data:image/png;base64,'; | |
| 385 | - break; | |
| 386 | - case 'bmp': | |
| 387 | - $dataurihead = 'data:image/bmp;base64,'; | |
| 388 | - break; | |
| 389 | - default: | |
| 390 | - $dataurihead = 'data:application/octet-stream;base64,'; | |
| 391 | - } | |
| 392 | - | |
| 393 | - // Encode the data | |
| 394 | - $base64data = base64_encode(file_get_contents($ipath)); | |
| 395 | - $headAndData=$dataurihead.$base64data; | |
| 396 | - | |
| 397 | - // Save in cache | |
| 398 | - $icheck->cache($headAndData,"text/plain"); | |
| 399 | - } | |
| 400 | - unset($icheck); | |
| 401 | - | |
| 402 | - // Add it to the list for replacement | |
| 403 | - $imgreplace[$matches[0][$count]] = str_replace($quotedurl,$headAndData,$matches[0][$count]); | |
| 404 | - } else { | |
| 405 | - // just cdn the URL if applicable | |
| 406 | - if (!empty($this->cdn_url)) { | |
| 407 | - $imgreplace[$matches[0][$count]] = str_replace($quotedurl,$this->maybe_cdn_urls($quotedurl),$matches[0][$count]); | |
| 408 | - } | |
| 409 | - } | |
| 410 | - } | |
| 411 | - } else if ((is_array($matches)) && (!empty($this->cdn_url))) { | |
| 412 | - // change urls to cdn-url | |
| 413 | - foreach($matches[1] as $count => $quotedurl) { | |
| 414 | - $imgreplace[$matches[0][$count]] = str_replace($quotedurl,$this->maybe_cdn_urls($quotedurl),$matches[0][$count]); | |
| 415 | - } | |
| 416 | - } | |
| 417 | - | |
| 418 | - if(!empty($imgreplace)) { | |
| 419 | - $code = str_replace(array_keys($imgreplace),array_values($imgreplace),$code); | |
| 420 | - } | |
| 421 | - | |
| 422 | - // Minify | |
| 423 | - if (($this->alreadyminified!==true) && (apply_filters( "autoptimize_css_do_minify", true))) { | |
| 424 | - if (class_exists('Minify_CSS_Compressor')) { | |
| 425 | - $tmp_code = trim(Minify_CSS_Compressor::process($code)); | |
| 426 | - } else if(class_exists('CSSmin')) { | |
| 427 | - $cssmin = new CSSmin(); | |
| 428 | - if (method_exists($cssmin,"run")) { | |
| 429 | - $tmp_code = trim($cssmin->run($code)); | |
| 430 | - } elseif (@is_callable(array($cssmin,"minify"))) { | |
| 431 | - $tmp_code = trim(CssMin::minify($code)); | |
| 432 | - } | |
| 433 | - } | |
| 434 | - if (!empty($tmp_code)) { | |
| 435 | - $code = $tmp_code; | |
| 436 | - unset($tmp_code); | |
| 437 | - } | |
| 438 | - } | |
| 439 | - | |
| 440 | - $code = $this->inject_minified($code); | |
| 441 | - | |
| 442 | - $tmp_code = apply_filters( 'autoptimize_css_after_minify', $code ); | |
| 443 | - if (!empty($tmp_code)) { | |
| 444 | - $code = $tmp_code; | |
| 445 | - unset($tmp_code); | |
| 446 | - } | |
| 447 | - | |
| 448 | - $this->hashmap[md5($code)] = $hash; | |
| 449 | - } | |
| 450 | - unset($code); | |
| 451 | - return true; | |
| 452 | - } | |
| 453 | - | |
| 454 | - //Caches the CSS in uncompressed, deflated and gzipped form. | |
| 455 | - public function cache() { | |
| 456 | - // CSS cache | |
| 457 | - foreach($this->csscode as $media => $code) { | |
| 458 | - $md5 = $this->hashmap[md5($code)]; | |
| 459 | - | |
| 460 | - $cache = new autoptimizeCache($md5,'css'); | |
| 461 | - if(!$cache->check()) { | |
| 462 | - // Cache our code | |
| 463 | - $cache->cache($code,'text/css'); | |
| 464 | - } | |
| 465 | - $this->url[$media] = AUTOPTIMIZE_CACHE_URL.$cache->getname(); | |
| 466 | - } | |
| 467 | - } | |
| 468 | - | |
| 469 | - //Returns the content | |
| 470 | - public function getcontent() { | |
| 471 | - // restore IE hacks | |
| 472 | - $this->content = $this->restore_iehacks($this->content); | |
| 473 | - | |
| 474 | - // restore comments | |
| 475 | - $this->content = $this->restore_comments($this->content); | |
| 476 | - | |
| 477 | - // restore (no)script | |
| 478 | - if ( strpos( $this->content, '%%SCRIPT%%' ) !== false ) { | |
| 479 | - $this->content = preg_replace_callback( | |
| 480 | - '#%%SCRIPT'.AUTOPTIMIZE_HASH.'%%(.*?)%%SCRIPT%%#is', | |
| 481 | - create_function( | |
| 482 | - '$matches', | |
| 483 | - 'return base64_decode($matches[1]);' | |
| 484 | - ), | |
| 485 | - $this->content | |
| 486 | - ); | |
| 487 | - } | |
| 488 | - | |
| 489 | - // restore noptimize | |
| 490 | - $this->content = $this->restore_noptimize($this->content); | |
| 491 | - | |
| 492 | - //Restore the full content | |
| 493 | - if(!empty($this->restofcontent)) { | |
| 494 | - $this->content .= $this->restofcontent; | |
| 495 | - $this->restofcontent = ''; | |
| 496 | - } | |
| 497 | - | |
| 498 | - // Inject the new stylesheets | |
| 499 | - $replaceTag = array("<title","before"); | |
| 500 | - $replaceTag = apply_filters( 'autoptimize_filter_css_replacetag', $replaceTag, $this->content ); | |
| 501 | - | |
| 502 | - if ($this->inline == true) { | |
| 503 | - foreach($this->csscode as $media => $code) { | |
| 504 | - $this->inject_in_html('<style type="text/css" media="'.$media.'">'.$code.'</style>',$replaceTag); | |
| 505 | - } | |
| 506 | - } else { | |
| 507 | - if ($this->defer == true) { | |
| 508 | - $preloadCssBlock = ""; | |
| 509 | - $noScriptCssBlock = "<noscript id=\"aonoscrcss\">"; | |
| 510 | - $defer_inline_code=$this->defer_inline; | |
| 511 | - if(!empty($defer_inline_code)){ | |
| 512 | - if ( apply_filters( 'autoptimize_filter_css_critcss_minify', true ) ) { | |
| 513 | - $iCssHash = md5($defer_inline_code); | |
| 514 | - $iCssCache = new autoptimizeCache($iCssHash,'css'); | |
| 515 | - if($iCssCache->check()) { | |
| 516 | - // we have the optimized inline CSS in cache | |
| 517 | - $defer_inline_code=$iCssCache->retrieve(); | |
| 518 | - } else { | |
| 519 | - if (class_exists('Minify_CSS_Compressor')) { | |
| 520 | - $tmp_code = trim(Minify_CSS_Compressor::process($defer_inline_code)); | |
| 521 | - } else if(class_exists('CSSmin')) { | |
| 522 | - $cssmin = new CSSmin(); | |
| 523 | - $tmp_code = trim($cssmin->run($defer_inline_code)); | |
| 524 | - } | |
| 525 | - if (!empty($tmp_code)) { | |
| 526 | - $defer_inline_code = $tmp_code; | |
| 527 | - $iCssCache->cache($defer_inline_code,"text/css"); | |
| 528 | - unset($tmp_code); | |
| 529 | - } | |
| 530 | - } | |
| 531 | - } | |
| 532 | - $code_out='<style type="text/css" id="aoatfcss" media="all">'.$defer_inline_code.'</style>'; | |
| 533 | - $this->inject_in_html($code_out,$replaceTag); | |
| 534 | - } | |
| 535 | - } | |
| 536 | - | |
| 537 | - foreach($this->url as $media => $url) { | |
| 538 | - $url = $this->url_replace_cdn($url); | |
| 539 | - | |
| 540 | - //Add the stylesheet either deferred (import at bottom) or normal links in head | |
| 541 | - if($this->defer == true) { | |
| 542 | - | |
| 543 | - // Filter to modify the onload attribute - passes value and the stylesheet url | |
| 544 | - $preloadOnLoad = apply_filters('autoptimize_filter_css_preload_onload', "this.rel='stylesheet'", $url); | |
| 545 | - | |
| 546 | - $preloadCssBlock .= '<link rel="preload" as="style" media="'.$media.'" href="'.$url.'" onload="'.$preloadOnLoad.'" />'; | |
| 547 | - $noScriptCssBlock .= '<link type="text/css" media="'.$media.'" href="'.$url.'" rel="stylesheet" />'; | |
| 548 | - | |
| 549 | - } else { | |
| 550 | - if (strlen($this->csscode[$media]) > $this->cssinlinesize) { | |
| 551 | - $this->inject_in_html('<link type="text/css" media="'.$media.'" href="'.$url.'" rel="stylesheet" />',$replaceTag); | |
| 552 | - } else if (strlen($this->csscode[$media])>0) { | |
| 553 | - $this->inject_in_html('<style type="text/css" media="'.$media.'">'.$this->csscode[$media].'</style>',$replaceTag); | |
| 554 | - } | |
| 555 | - } | |
| 556 | - } | |
| 557 | - | |
| 558 | - if($this->defer == true) { | |
| 559 | - $preloadPolyfill = '<script data-cfasync=\'false\'>/*! loadCSS. [c]2017 Filament Group, Inc. MIT License */ | |
| 560 | -!function(a){"use strict";var b=function(b,c,d){function e(a){return h.body?a():void setTimeout(function(){e(a)})}function f(){i.addEventListener&&i.removeEventListener("load",f),i.media=d||"all"}var g,h=a.document,i=h.createElement("link");if(c)g=c;else{var j=(h.body||h.getElementsByTagName("head")[0]).childNodes;g=j[j.length-1]}var k=h.styleSheets;i.rel="stylesheet",i.href=b,i.media="only x",e(function(){g.parentNode.insertBefore(i,c?g:g.nextSibling)});var l=function(a){for(var b=i.href,c=k.length;c--;)if(k[c].href===b)return a();setTimeout(function(){l(a)})};return i.addEventListener&&i.addEventListener("load",f),i.onloadcssdefined=l,l(f),i};"undefined"!=typeof exports?exports.loadCSS=b:a.loadCSS=b}("undefined"!=typeof global?global:this); | |
| 561 | -/*! loadCSS rel=preload polyfill. [c]2017 Filament Group, Inc. MIT License */ | |
| 562 | -!function(a){if(a.loadCSS){var b=loadCSS.relpreload={};if(b.support=function(){try{return a.document.createElement("link").relList.supports("preload")}catch(b){return!1}},b.poly=function(){for(var b=a.document.getElementsByTagName("link"),c=0;c<b.length;c++){var d=b[c];"preload"===d.rel&&"style"===d.getAttribute("as")&&(a.loadCSS(d.href,d,d.getAttribute("media")),d.rel=null)}},!b.support()){b.poly();var c=a.setInterval(b.poly,300);a.addEventListener&&a.addEventListener("load",function(){b.poly(),a.clearInterval(c)}),a.attachEvent&&a.attachEvent("onload",function(){a.clearInterval(c)})}}}(this);</script>'; | |
| 563 | - $noScriptCssBlock .= "</noscript>"; | |
| 564 | - $this->inject_in_html($preloadCssBlock.$noScriptCssBlock,$replaceTag); | |
| 565 | - | |
| 566 | - // Adds preload polyfill at end of body tag | |
| 567 | - $this->inject_in_html( | |
| 568 | - apply_filters('autoptimize_css_preload_polyfill', $preloadPolyfill), | |
| 569 | - array('</body>','before') | |
| 570 | - ); | |
| 571 | - } | |
| 572 | - } | |
| 573 | - | |
| 574 | - //Return the modified stylesheet | |
| 575 | - return $this->content; | |
| 576 | - } | |
| 577 | - | |
| 578 | - static function fixurls($file, $code) { | |
| 579 | - // Switch all imports to the url() syntax | |
| 580 | - $code = preg_replace( '#@import ("|\')(.+?)\.css.*?("|\')#', '@import url("${2}.css")', $code ); | |
| 581 | - | |
| 582 | - if ( preg_match_all( self::ASSETS_REGEX, $code, $matches ) ) { | |
| 583 | - $file = str_replace( WP_ROOT_DIR, '/', $file ); | |
| 584 | - $dir = dirname( $file ); // Like /themes/expound/css | |
| 585 | - | |
| 586 | - // $dir should not contain backslashes, since it's used to replace | |
| 587 | - // urls, but it can contain them when running on Windows because | |
| 588 | - // fixurls() is sometimes called with `ABSPATH . 'index.php'` | |
| 589 | - $dir = str_replace( '\\', '/', $dir ); | |
| 590 | - unset( $file ); // not used below at all | |
| 591 | - | |
| 592 | - $replace = array(); | |
| 593 | - foreach ( $matches[1] as $k => $url ) { | |
| 594 | - // Remove quotes | |
| 595 | - $url = trim( $url," \t\n\r\0\x0B\"'" ); | |
| 596 | - $noQurl = trim( $url, "\"'" ); | |
| 597 | - if ( $url !== $noQurl ) { | |
| 598 | - $removedQuotes = true; | |
| 599 | - } else { | |
| 600 | - $removedQuotes = false; | |
| 601 | - } | |
| 602 | - | |
| 603 | - if ( '' === $noQurl ) { | |
| 604 | - continue; | |
| 605 | - } | |
| 606 | - | |
| 607 | - $url = $noQurl; | |
| 608 | - if ( '/' === $url{0} || preg_match( '#^(https?://|ftp://|data:)#i', $url ) ) { | |
| 609 | - // URL is protocol-relative, host-relative or something we don't touch | |
| 610 | - continue; | |
| 611 | - } else { | |
| 612 | - // Relative URL | |
| 613 | - $newurl = preg_replace( '/https?:/', '', str_replace( ' ', '%20', AUTOPTIMIZE_WP_ROOT_URL . str_replace( '//', '/', $dir . '/' . $url ) ) ); | |
| 614 | - | |
| 615 | - // Hash the url + whatever was behind potentially for replacement | |
| 616 | - // We must do this, or different css classes referencing the same bg image (but | |
| 617 | - // different parts of it, say, in sprites and such) loose their stuff... | |
| 618 | - $hash = md5( $url . $matches[2][$k] ); | |
| 619 | - $code = str_replace( $matches[0][$k], $hash, $code ); | |
| 620 | - | |
| 621 | - if ( $removedQuotes ) { | |
| 622 | - $replace[$hash] = "url('" . $newurl . "')" . $matches[2][$k]; | |
| 623 | - } else { | |
| 624 | - $replace[$hash] = 'url(' . $newurl . ')' . $matches[2][$k]; | |
| 625 | - } | |
| 626 | - } | |
| 627 | - } | |
| 628 | - | |
| 629 | - if ( ! empty( $replace ) ) { | |
| 630 | - // Sort the replacements array by key length in desc order (so that the longest strings are replaced first) | |
| 631 | - $keys = array_map( 'strlen', array_keys( $replace ) ); | |
| 632 | - array_multisort( $keys, SORT_DESC, $replace ); | |
| 633 | - | |
| 634 | - // Replace URLs found within $code | |
| 635 | - $code = str_replace( array_keys( $replace ), array_values( $replace ), $code ); | |
| 636 | - } | |
| 637 | - } | |
| 638 | - | |
| 639 | - return $code; | |
| 640 | - } | |
| 641 | - | |
| 642 | - private function ismovable($tag) { | |
| 643 | - if ( apply_filters('autoptimize_filter_css_dontaggregate', false) ) { | |
| 644 | - return false; | |
| 645 | - } else if (!empty($this->whitelist)) { | |
| 646 | - foreach ($this->whitelist as $match) { | |
| 647 | - if(strpos($tag,$match)!==false) { | |
| 648 | - return true; | |
| 649 | - } | |
| 650 | - } | |
| 651 | - // no match with whitelist | |
| 652 | - return false; | |
| 653 | - } else { | |
| 654 | - if (is_array($this->dontmove)) { | |
| 655 | - foreach($this->dontmove as $match) { | |
| 656 | - if(strpos($tag,$match)!==false) { | |
| 657 | - //Matched something | |
| 658 | - return false; | |
| 659 | - } | |
| 660 | - } | |
| 661 | - } | |
| 662 | - | |
| 663 | - //If we're here it's safe to move | |
| 664 | - return true; | |
| 665 | - } | |
| 666 | - } | |
| 667 | - | |
| 668 | - private function can_inject_late($cssPath,$css) { | |
| 669 | - $consider_minified_array = apply_filters('autoptimize_filter_css_consider_minified', false, $cssPath); | |
| 670 | - if ( $this->inject_min_late !== true ) { | |
| 671 | - // late-inject turned off | |
| 672 | - return false; | |
| 673 | - } else if ( (strpos($cssPath,"min.css") === false) && ( str_replace($consider_minified_array, '', $cssPath) === $cssPath ) ) { | |
| 674 | - // file not minified based on filename & filter | |
| 675 | - return false; | |
| 676 | - } else if ( strpos($css,"@import") !== false ) { | |
| 677 | - // can't late-inject files with imports as those need to be aggregated | |
| 678 | - return false; | |
| 679 | - } else if ( (strpos($css,"@font-face")!==false ) && ( apply_filters("autoptimize_filter_css_fonts_cdn",false)===true) && (!empty($this->cdn_url)) ) { | |
| 680 | - // don't late-inject CSS with font-src's if fonts are set to be CDN'ed | |
| 681 | - return false; | |
| 682 | - } else if ( (($this->datauris == true) || (!empty($this->cdn_url))) && preg_match("#background[^;}]*url\(#Ui",$css) ) { | |
| 683 | - // don't late-inject CSS with images if CDN is set OR is image inlining is on | |
| 684 | - return false; | |
| 685 | - } else { | |
| 686 | - // phew, all is safe, we can late-inject | |
| 687 | - return true; | |
| 688 | - } | |
| 689 | - } | |
| 690 | - | |
| 691 | - private function maybe_cdn_urls($inUrl) { | |
| 692 | - $url = trim($inUrl," \t\n\r\0\x0B\"'"); | |
| 693 | - $urlPath = parse_url($url,PHP_URL_PATH); | |
| 694 | - | |
| 695 | - // exclude fonts from CDN except if filter returns true | |
| 696 | - if ( !preg_match('#\.(woff2?|eot|ttf|otf)$#i',$urlPath) || apply_filters('autoptimize_filter_css_fonts_cdn',false) ) { | |
| 697 | - $cdn_url = $this->url_replace_cdn($url); | |
| 698 | - } else { | |
| 699 | - $cdn_url = $url; | |
| 700 | - } | |
| 701 | - | |
| 702 | - return $cdn_url; | |
| 703 | - } | |
| 704 | -} | |
| 1 | +<?php | |
| 2 | +/** | |
| 3 | + * Class for CSS optimization. | |
| 4 | + */ | |
| 5 | + | |
| 6 | +if ( ! defined( 'ABSPATH' ) ) { | |
| 7 | + exit; | |
| 8 | +} | |
| 9 | + | |
| 10 | +class autoptimizeStyles extends autoptimizeBase | |
| 11 | +{ | |
| 12 | + const ASSETS_REGEX = '/url\s*\(\s*(?!["\']?data:)(?![\'|\"]?[\#|\%|])([^)]+)\s*\)([^;},\s]*)/i'; | |
| 13 | + | |
| 14 | + /** | |
| 15 | + * Font-face regex-fu from HamZa at: https://stackoverflow.com/a/21395083 | |
| 16 | + */ | |
| 17 | + const FONT_FACE_REGEX = '~@font-face\s*(\{(?:[^{}]+|(?1))*\})~xsi'; // added `i` flag for case-insensitivity. | |
| 18 | + | |
| 19 | + /** | |
| 20 | + * Store CSS. | |
| 21 | + * | |
| 22 | + * @var array | |
| 23 | + */ | |
| 24 | + private $css = array(); | |
| 25 | + | |
| 26 | + /** | |
| 27 | + * To store CSS code | |
| 28 | + * | |
| 29 | + * @var array | |
| 30 | + */ | |
| 31 | + private $csscode = array(); | |
| 32 | + | |
| 33 | + /** | |
| 34 | + * To store urls | |
| 35 | + * | |
| 36 | + * @var array | |
| 37 | + */ | |
| 38 | + private $url = array(); | |
| 39 | + | |
| 40 | + /** | |
| 41 | + * String to store rest of content (when old setting "only in head" is used) | |
| 42 | + * | |
| 43 | + * @var string | |
| 44 | + */ | |
| 45 | + private $restofcontent = ''; | |
| 46 | + | |
| 47 | + /** | |
| 48 | + * Setting to change small images to inline CSS | |
| 49 | + * | |
| 50 | + * @var bool | |
| 51 | + */ | |
| 52 | + private $datauris = false; | |
| 53 | + | |
| 54 | + /** | |
| 55 | + * Array to store hashmap | |
| 56 | + * | |
| 57 | + * @var array | |
| 58 | + */ | |
| 59 | + private $hashmap = array(); | |
| 60 | + | |
| 61 | + /** | |
| 62 | + * Flag to indicate if CSS is already minified | |
| 63 | + * | |
| 64 | + * @var bool | |
| 65 | + */ | |
| 66 | + private $alreadyminified = false; | |
| 67 | + | |
| 68 | + /** | |
| 69 | + * Setting if CSS should be aggregated | |
| 70 | + * | |
| 71 | + * @var bool | |
| 72 | + */ | |
| 73 | + private $aggregate = true; | |
| 74 | + | |
| 75 | + /** | |
| 76 | + * Setting if all CSS should be inlined | |
| 77 | + * | |
| 78 | + * @var bool | |
| 79 | + */ | |
| 80 | + private $inline = false; | |
| 81 | + | |
| 82 | + /** | |
| 83 | + * Setting if CSS should be deferred | |
| 84 | + * | |
| 85 | + * @var bool | |
| 86 | + */ | |
| 87 | + private $defer = false; | |
| 88 | + | |
| 89 | + /** | |
| 90 | + * Setting for to be inlined CSS. | |
| 91 | + * | |
| 92 | + * @var string | |
| 93 | + */ | |
| 94 | + private $defer_inline = ''; | |
| 95 | + | |
| 96 | + /** | |
| 97 | + * Setting for allowlist of what should be aggregated. | |
| 98 | + * | |
| 99 | + * @var string | |
| 100 | + */ | |
| 101 | + private $allowlist = ''; | |
| 102 | + | |
| 103 | + /** | |
| 104 | + * Setting (only filter) for size under which CSS should be inlined instead of linked. | |
| 105 | + * | |
| 106 | + * @var string | |
| 107 | + */ | |
| 108 | + private $cssinlinesize = ''; | |
| 109 | + | |
| 110 | + /** | |
| 111 | + * Setting (only filter) of CSS that can be removed. | |
| 112 | + * | |
| 113 | + * @var array | |
| 114 | + */ | |
| 115 | + private $cssremovables = array(); | |
| 116 | + | |
| 117 | + /** | |
| 118 | + * Setting: should inline CSS be aggregated. | |
| 119 | + * | |
| 120 | + * @var bool | |
| 121 | + */ | |
| 122 | + private $include_inline = false; | |
| 123 | + | |
| 124 | + /** | |
| 125 | + * Setting (only filter) if minified CSS can be injected after minificatoin of aggregated CSS. | |
| 126 | + * | |
| 127 | + * @var bool | |
| 128 | + */ | |
| 129 | + private $inject_min_late = true; | |
| 130 | + | |
| 131 | + /** | |
| 132 | + * Holds all exclusions. | |
| 133 | + * | |
| 134 | + * @var array | |
| 135 | + */ | |
| 136 | + private $dontmove = array(); | |
| 137 | + | |
| 138 | + /** | |
| 139 | + * Holds all options. | |
| 140 | + * | |
| 141 | + * @var array | |
| 142 | + */ | |
| 143 | + private $options = array(); | |
| 144 | + | |
| 145 | + /** | |
| 146 | + * Setting; should excluded CSS-files be minified. | |
| 147 | + * | |
| 148 | + * @var bool | |
| 149 | + */ | |
| 150 | + private $minify_excluded = true; | |
| 151 | + | |
| 152 | + /** | |
| 153 | + * Setting (filter only); should all media-attributes be forced to "all". | |
| 154 | + * | |
| 155 | + * @var bool | |
| 156 | + */ | |
| 157 | + private $media_force_all = false; | |
| 158 | + | |
| 159 | + /** | |
| 160 | + * Reads the page and collects style tags. | |
| 161 | + * | |
| 162 | + * @param array $options all options. | |
| 163 | + */ | |
| 164 | + public function read( $options ) | |
| 165 | + { | |
| 166 | + $noptimize_css = apply_filters( 'autoptimize_filter_css_noptimize', false, $this->content ); | |
| 167 | + if ( $noptimize_css || false === autoptimizeConfig::get_post_meta_ao_settings( 'ao_post_css_optimize' ) ) { | |
| 168 | + return false; | |
| 169 | + } | |
| 170 | + | |
| 171 | + $allowlist_css = apply_filters( 'autoptimize_filter_css_allowlist', '', $this->content ); | |
| 172 | + if ( ! empty( $allowlist_css ) ) { | |
| 173 | + $this->allowlist = array_filter( array_map( 'trim', explode( ',', $allowlist_css ) ) ); | |
| 174 | + } | |
| 175 | + | |
| 176 | + $removable_css = apply_filters( 'autoptimize_filter_css_removables', '' ); | |
| 177 | + if ( ! empty( $removable_css ) ) { | |
| 178 | + $this->cssremovables = array_filter( array_map( 'trim', explode( ',', $removable_css ) ) ); | |
| 179 | + } | |
| 180 | + | |
| 181 | + $this->cssinlinesize = apply_filters( 'autoptimize_filter_css_inlinesize', 256 ); | |
| 182 | + | |
| 183 | + // filter to "late inject minified CSS", default to true for now (it is faster). | |
| 184 | + $this->inject_min_late = apply_filters( 'autoptimize_filter_css_inject_min_late', true ); | |
| 185 | + | |
| 186 | + // Remove everything that's not the header. | |
| 187 | + if ( apply_filters( 'autoptimize_filter_css_justhead', $options['justhead'] ) ) { | |
| 188 | + $content = explode( '</head>', $this->content, 2 ); | |
| 189 | + $this->content = $content[0] . '</head>'; | |
| 190 | + $this->restofcontent = $content[1]; | |
| 191 | + } | |
| 192 | + | |
| 193 | + // Determine whether we're doing CSS-files aggregation or not. | |
| 194 | + if ( isset( $options['aggregate'] ) && ! $options['aggregate'] ) { | |
| 195 | + $this->aggregate = false; | |
| 196 | + } | |
| 197 | + // Returning true for "dontaggregate" turns off aggregation. | |
| 198 | + if ( $this->aggregate && apply_filters( 'autoptimize_filter_css_dontaggregate', false ) ) { | |
| 199 | + $this->aggregate = false; | |
| 200 | + } | |
| 201 | + // and the filter that should have been there to begin with. | |
| 202 | + $this->aggregate = apply_filters( 'autoptimize_filter_css_aggregate', $this->aggregate ); | |
| 203 | + | |
| 204 | + // include inline? | |
| 205 | + if ( apply_filters( 'autoptimize_css_include_inline', $options['include_inline'] ) ) { | |
| 206 | + $this->include_inline = true; | |
| 207 | + } | |
| 208 | + | |
| 209 | + // List of CSS strings which are excluded from autoptimization. | |
| 210 | + $exclude_css = apply_filters( 'autoptimize_filter_css_exclude', $options['css_exclude'], $this->content ); | |
| 211 | + if ( '' !== $exclude_css ) { | |
| 212 | + $this->dontmove = array_filter( array_map( 'trim', explode( ',', $exclude_css ) ) ); | |
| 213 | + } else { | |
| 214 | + $this->dontmove = array(); | |
| 215 | + } | |
| 216 | + | |
| 217 | + // forcefully exclude CSS with data-noptimize attrib. | |
| 218 | + $this->dontmove[] = 'data-noptimize'; | |
| 219 | + | |
| 220 | + // forcefully exclude inline CSS with ".wp-container-" which due to the random-ish nature busts AO's cache continuously. | |
| 221 | + $this->dontmove[] = '.wp-container-'; | |
| 222 | + | |
| 223 | + // Should we defer css? | |
| 224 | + // value: true / false. | |
| 225 | + $this->defer = $options['defer']; | |
| 226 | + $this->defer = apply_filters( 'autoptimize_filter_css_defer', $this->defer, $this->content ); | |
| 227 | + | |
| 228 | + // If page/ post check post_meta to see if optimize is off. | |
| 229 | + if ( $this->defer && false === autoptimizeConfig::get_post_meta_ao_settings( 'ao_post_ccss' ) ) { | |
| 230 | + $this->defer = false; | |
| 231 | + } | |
| 232 | + | |
| 233 | + // Should we inline while deferring? | |
| 234 | + // value: inlined CSS. | |
| 235 | + $this->defer_inline = apply_filters( 'autoptimize_filter_css_defer_inline', $this->sanitize_css( $options['defer_inline'] ), $this->content ); | |
| 236 | + | |
| 237 | + // Should we inline? | |
| 238 | + // value: true / false. | |
| 239 | + $this->inline = $options['inline']; | |
| 240 | + $this->inline = apply_filters( 'autoptimize_filter_css_inline', $this->inline, $this->content ); | |
| 241 | + | |
| 242 | + // Store cdn url. | |
| 243 | + $this->cdn_url = $options['cdn_url']; | |
| 244 | + | |
| 245 | + // Store data: URIs setting for later use. | |
| 246 | + $this->datauris = $options['datauris']; | |
| 247 | + | |
| 248 | + // Determine whether excluded files should be minified if not yet so. | |
| 249 | + if ( ! $options['minify_excluded'] && $options['aggregate'] ) { | |
| 250 | + $this->minify_excluded = false; | |
| 251 | + } | |
| 252 | + $this->minify_excluded = apply_filters( 'autoptimize_filter_css_minify_excluded', $this->minify_excluded, '' ); | |
| 253 | + | |
| 254 | + // should we force all media-attributes to all? | |
| 255 | + $this->media_force_all = apply_filters( 'autoptimize_filter_css_tagmedia_forceall', false ); | |
| 256 | + | |
| 257 | + // noptimize me. | |
| 258 | + $this->content = $this->hide_noptimize( $this->content ); | |
| 259 | + | |
| 260 | + // Exclude (no)script, as those may contain CSS which should be left as is. | |
| 261 | + $this->content = $this->replace_contents_with_marker_if_exists( | |
| 262 | + 'SCRIPT', | |
| 263 | + '<script', | |
| 264 | + '#<(?:no)?script.*?<\/(?:no)?script>#is', | |
| 265 | + $this->content | |
| 266 | + ); | |
| 267 | + | |
| 268 | + // Save IE hacks. | |
| 269 | + $this->content = $this->hide_iehacks( $this->content ); | |
| 270 | + | |
| 271 | + // Hide HTML comments. | |
| 272 | + $this->content = $this->hide_comments( $this->content ); | |
| 273 | + | |
| 274 | + // Get <style> and <link>. | |
| 275 | + if ( preg_match_all( '#(<style[^>]*>.*</style>)|(<link[^>]*stylesheet[^>]*>)#Usmi', $this->content, $matches ) ) { | |
| 276 | + | |
| 277 | + foreach ( $matches[0] as $tag ) { | |
| 278 | + if ( $this->isremovable( $tag, $this->cssremovables ) ) { | |
| 279 | + $this->content = str_replace( $tag, '', $this->content ); | |
| 280 | + } elseif ( $this->ismovable( $tag ) ) { | |
| 281 | + // Get the media. | |
| 282 | + if ( false !== strpos( $tag, 'media=' ) ) { | |
| 283 | + preg_match( '#media=(?:"|\')([^>]*)(?:"|\')#Ui', $tag, $medias ); | |
| 284 | + if ( ! empty( $medias ) ) { | |
| 285 | + $medias = explode( ',', $medias[1] ); | |
| 286 | + $media = array(); | |
| 287 | + foreach ( $medias as $elem ) { | |
| 288 | + if ( empty( $elem ) ) { | |
| 289 | + $elem = 'all'; | |
| 290 | + } | |
| 291 | + | |
| 292 | + $media[] = $elem; | |
| 293 | + } | |
| 294 | + } else { | |
| 295 | + $media = array( 'all' ); | |
| 296 | + } | |
| 297 | + } else { | |
| 298 | + // No media specified - applies to all. | |
| 299 | + $media = array( 'all' ); | |
| 300 | + } | |
| 301 | + | |
| 302 | + // forcing media attribute to all to merge all in one file. | |
| 303 | + if ( $this->media_force_all ) { | |
| 304 | + $media = array( 'all' ); | |
| 305 | + } | |
| 306 | + | |
| 307 | + $media = apply_filters( 'autoptimize_filter_css_tagmedia', $media, $tag ); | |
| 308 | + | |
| 309 | + if ( preg_match( '#<link.*href=("|\')(.*)("|\')#Usmi', $tag, $source ) ) { | |
| 310 | + // <link>. | |
| 311 | + $url = current( explode( '?', $source[2], 2 ) ); | |
| 312 | + $path = $this->getpath( $url ); | |
| 313 | + | |
| 314 | + if ( false !== $path && preg_match( '#\.css$#', $path ) ) { | |
| 315 | + // Good link. | |
| 316 | + $this->css[] = array( $media, $path ); | |
| 317 | + } else { | |
| 318 | + // Link is dynamic (.php etc). | |
| 319 | + $new_tag = $this->optionally_defer_excluded( $tag, 'none' ); | |
| 320 | + if ( '' !== $new_tag && $new_tag !== $tag ) { | |
| 321 | + $this->content = str_replace( $tag, $new_tag, $this->content ); | |
| 322 | + } | |
| 323 | + $tag = ''; | |
| 324 | + } | |
| 325 | + } else { | |
| 326 | + // Inline css in style tags can be wrapped in comment tags, so restore comments. | |
| 327 | + $tag = $this->restore_comments( $tag ); | |
| 328 | + preg_match( '#<style.*>(.*)</style>#Usmi', $tag, $code ); | |
| 329 | + | |
| 330 | + // And re-hide them to be able to to the removal based on tag. | |
| 331 | + $tag = $this->hide_comments( $tag ); | |
| 332 | + | |
| 333 | + if ( $this->include_inline ) { | |
| 334 | + $code = preg_replace( '#^.*<!\[CDATA\[(?:\s*\*/)?(.*)(?://|/\*)\s*?\]\]>.*$#sm', '$1', $code[1] ); | |
| 335 | + $this->css[] = array( $media, 'INLINE;' . $code ); | |
| 336 | + } else { | |
| 337 | + $tag = ''; | |
| 338 | + } | |
| 339 | + } | |
| 340 | + | |
| 341 | + // Remove the original style tag. | |
| 342 | + $this->content = str_replace( $tag, '', $this->content ); | |
| 343 | + } else { | |
| 344 | + if ( preg_match( '#<link.*href=("|\')(.*)("|\')#Usmi', $tag, $source ) ) { | |
| 345 | + $exploded_url = explode( '?', $source[2], 2 ); | |
| 346 | + $url = $exploded_url[0]; | |
| 347 | + $path = $this->getpath( $url ); | |
| 348 | + $new_tag = $tag; | |
| 349 | + | |
| 350 | + // Excluded CSS, minify that file: | |
| 351 | + // -> if aggregate is on and exclude minify is on | |
| 352 | + // -> if aggregate is off and the file is not in dontmove. | |
| 353 | + if ( $path && $this->minify_excluded ) { | |
| 354 | + $consider_minified_array = apply_filters( 'autoptimize_filter_css_consider_minified', false ); | |
| 355 | + if ( ( false === $this->aggregate && str_replace( $this->dontmove, '', $path ) === $path ) || ( true === $this->aggregate && ( false === $consider_minified_array || str_replace( $consider_minified_array, '', $path ) === $path ) ) ) { | |
| 356 | + $minified_url = $this->minify_single( $path ); | |
| 357 | + if ( ! empty( $minified_url ) ) { | |
| 358 | + // Replace orig URL with cached minified URL. | |
| 359 | + $new_tag = str_replace( $url, $minified_url, $tag ); | |
| 360 | + } elseif ( apply_filters( 'autoptimize_filter_ccsjs_remove_empty_minified_url', false ) ) { | |
| 361 | + // Remove the original style tag, because cache content is empty but only if | |
| 362 | + // filter is true-ed because $minified_url is also false if file is minified already. | |
| 363 | + $new_tag = ''; | |
| 364 | + } | |
| 365 | + } | |
| 366 | + } | |
| 367 | + | |
| 368 | + if ( '' !== $new_tag ) { | |
| 369 | + // Optionally defer (preload) non-aggregated CSS. | |
| 370 | + $new_tag = $this->optionally_defer_excluded( $new_tag, $url ); | |
| 371 | + | |
| 372 | + // Check if we still need to CDN (esp. for already minified resources). | |
| 373 | + if ( ! empty( $this->cdn_url ) || has_filter( 'autoptimize_filter_base_replace_cdn' ) ) { | |
| 374 | + $new_tag = str_replace( $url, $this->url_replace_cdn( $url ), $new_tag ); | |
| 375 | + } | |
| 376 | + } | |
| 377 | + | |
| 378 | + // And replace! | |
| 379 | + if ( ( '' !== $new_tag && $new_tag !== $tag ) || ( '' === $new_tag && apply_filters( 'autoptimize_filter_css_remove_empty_files', false ) ) ) { | |
| 380 | + $this->content = str_replace( $tag, $new_tag, $this->content ); | |
| 381 | + } | |
| 382 | + } | |
| 383 | + } | |
| 384 | + } | |
| 385 | + return true; | |
| 386 | + } | |
| 387 | + | |
| 388 | + // Really, no styles? | |
| 389 | + return false; | |
| 390 | + } | |
| 391 | + | |
| 392 | + /** | |
| 393 | + * Checks if non-optimized CSS is to be preloaded and if so return | |
| 394 | + * the tag with preload code. | |
| 395 | + * | |
| 396 | + * @param string $tag (required). | |
| 397 | + * @param string $url (optional). | |
| 398 | + * | |
| 399 | + * @return string $new_tag | |
| 400 | + */ | |
| 401 | + private function optionally_defer_excluded( $tag, $url = '' ) | |
| 402 | + { | |
| 403 | + // Defer single CSS if "inline & defer" is ON and there is inline CSS. | |
| 404 | + if ( ! empty( $tag ) && false === strpos( $tag, ' onload=' ) && $this->defer && ! empty( $this->defer_inline ) && apply_filters( 'autoptimize_filter_css_defer_excluded', true, $tag ) ) { | |
| 405 | + // get media attribute and based on that create onload JS attribute value. | |
| 406 | + if ( false === strpos( $tag, 'media=' ) ) { | |
| 407 | + $tag = str_replace( '<link', "<link media='all'", $tag ); | |
| 408 | + } | |
| 409 | + | |
| 410 | + preg_match( '#media=(?:"|\')([^>]*)(?:"|\')#Ui', $tag, $_medias ); | |
| 411 | + $_media = $_medias[1]; | |
| 412 | + $_preload_onload = autoptimizeConfig::get_ao_css_preload_onload( $_media ); | |
| 413 | + | |
| 414 | + if ( 'print' !== $_media ) { | |
| 415 | + // If not media=print, adapt original <link> element for CSS to be preloaded and add <noscript>-version for fallback. | |
| 416 | + $new_tag = '<noscript>' . autoptimizeUtils::remove_id_from_node( $tag ) . '</noscript>' . str_replace( | |
| 417 | + $_medias[0], | |
| 418 | + "media='print' onload=\"" . $_preload_onload . '"', | |
| 419 | + $tag | |
| 420 | + ); | |
| 421 | + | |
| 422 | + // Optionally (but default false) preload the (excluded) CSS-file. | |
| 423 | + if ( apply_filters( 'autoptimize_fitler_css_preload_and_print', false ) && 'none' !== $url ) { | |
| 424 | + $new_tag = '<link rel="preload" as="stylesheet" href="' . $url . '"/>' . $new_tag; | |
| 425 | + } | |
| 426 | + } else { | |
| 427 | + $new_tag = $tag; | |
| 428 | + } | |
| 429 | + | |
| 430 | + return $new_tag; | |
| 431 | + } | |
| 432 | + | |
| 433 | + // Return unchanged $tag. | |
| 434 | + return $tag; | |
| 435 | + } | |
| 436 | + | |
| 437 | + /** | |
| 438 | + * Checks if the local file referenced by $path is a valid | |
| 439 | + * candidate for being inlined into a data: URI | |
| 440 | + * | |
| 441 | + * @param string $path image path. | |
| 442 | + * @return boolean | |
| 443 | + */ | |
| 444 | + private function is_datauri_candidate( $path ) | |
| 445 | + { | |
| 446 | + // Call only once since it's called from a loop. | |
| 447 | + static $max_size = null; | |
| 448 | + if ( null === $max_size ) { | |
| 449 | + $max_size = $this->get_datauri_maxsize(); | |
| 450 | + } | |
| 451 | + | |
| 452 | + if ( $path && preg_match( '#\.(jpe?g|png|gif|webp|bmp)$#i', $path ) && | |
| 453 | + file_exists( $path ) && is_readable( $path ) && filesize( $path ) <= $max_size ) { | |
| 454 | + | |
| 455 | + // Seems we have a candidate. | |
| 456 | + $is_candidate = true; | |
| 457 | + } else { | |
| 458 | + // Filter allows overriding default decision (which checks for local file existence). | |
| 459 | + $is_candidate = apply_filters( 'autoptimize_filter_css_is_datauri_candidate', false, $path ); | |
| 460 | + } | |
| 461 | + | |
| 462 | + return $is_candidate; | |
| 463 | + } | |
| 464 | + | |
| 465 | + /** | |
| 466 | + * Returns the amount of bytes that shouldn't be exceeded if a file is to | |
| 467 | + * be inlined into a data: URI. Defaults to 4096, passed through | |
| 468 | + * `autoptimize_filter_css_datauri_maxsize` filter. | |
| 469 | + * | |
| 470 | + * @return mixed | |
| 471 | + */ | |
| 472 | + private function get_datauri_maxsize() | |
| 473 | + { | |
| 474 | + static $max_size = null; | |
| 475 | + | |
| 476 | + /** | |
| 477 | + * No need to apply the filter multiple times in case the | |
| 478 | + * method itself is invoked multiple times during a single request. | |
| 479 | + * This prevents some wild stuff like having different maxsizes | |
| 480 | + * for different files/site-sections etc. But if you're into that sort | |
| 481 | + * of thing you're probably better of building assets completely | |
| 482 | + * outside of WordPress anyway. | |
| 483 | + */ | |
| 484 | + if ( null === $max_size ) { | |
| 485 | + $max_size = (int) apply_filters( 'autoptimize_filter_css_datauri_maxsize', 4096 ); | |
| 486 | + } | |
| 487 | + | |
| 488 | + return $max_size; | |
| 489 | + } | |
| 490 | + | |
| 491 | + private function check_datauri_exclude_list( $url ) | |
| 492 | + { | |
| 493 | + static $exclude_list = null; | |
| 494 | + static $no_datauris = array(); | |
| 495 | + | |
| 496 | + // Again, skip doing certain stuff repeatedly when loop-called. | |
| 497 | + if ( null === $exclude_list ) { | |
| 498 | + $exclude_list = apply_filters( 'autoptimize_filter_css_datauri_exclude', '' ); | |
| 499 | + $no_datauris = array_filter( array_map( 'trim', explode( ',', $exclude_list ) ) ); | |
| 500 | + } | |
| 501 | + | |
| 502 | + $matched = false; | |
| 503 | + | |
| 504 | + if ( ! empty( $exclude_list ) ) { | |
| 505 | + foreach ( $no_datauris as $no_datauri ) { | |
| 506 | + if ( false !== strpos( $url, $no_datauri ) ) { | |
| 507 | + $matched = true; | |
| 508 | + break; | |
| 509 | + } | |
| 510 | + } | |
| 511 | + } | |
| 512 | + | |
| 513 | + return $matched; | |
| 514 | + } | |
| 515 | + | |
| 516 | + private function build_or_get_datauri_image( $path ) | |
| 517 | + { | |
| 518 | + /** | |
| 519 | + * TODO/FIXME: document the required return array format, or better yet, | |
| 520 | + * use a string, since we don't really need an array for this. That would, however, | |
| 521 | + * require changing even more code, which is not happening right now... | |
| 522 | + */ | |
| 523 | + | |
| 524 | + // Allows short-circuiting datauri generation for an image. | |
| 525 | + $result = apply_filters( 'autoptimize_filter_css_datauri_image', array(), $path ); | |
| 526 | + if ( ! empty( $result ) ) { | |
| 527 | + if ( is_array( $result ) && isset( $result['full'] ) && isset( $result['base64data'] ) ) { | |
| 528 | + return $result; | |
| 529 | + } | |
| 530 | + } | |
| 531 | + | |
| 532 | + $hash = md5( $path ); | |
| 533 | + $check = new autoptimizeCache( $hash, 'img' ); | |
| 534 | + if ( $check->check() ) { | |
| 535 | + // we have the base64 image in cache. | |
| 536 | + $head_and_data = $check->retrieve(); | |
| 537 | + $_base64data = explode( ';base64,', $head_and_data ); | |
| 538 | + $base64data = $_base64data[1]; | |
| 539 | + unset( $_base64data ); | |
| 540 | + } else { | |
| 541 | + // It's an image and we don't have it in cache, get the type by extension. | |
| 542 | + $exploded_path = explode( '.', $path ); | |
| 543 | + $type = end( $exploded_path ); | |
| 544 | + | |
| 545 | + switch ( $type ) { | |
| 546 | + case 'jpg': | |
| 547 | + case 'jpeg': | |
| 548 | + $dataurihead = 'data:image/jpeg;base64,'; | |
| 549 | + break; | |
| 550 | + case 'gif': | |
| 551 | + $dataurihead = 'data:image/gif;base64,'; | |
| 552 | + break; | |
| 553 | + case 'png': | |
| 554 | + $dataurihead = 'data:image/png;base64,'; | |
| 555 | + break; | |
| 556 | + case 'bmp': | |
| 557 | + $dataurihead = 'data:image/bmp;base64,'; | |
| 558 | + break; | |
| 559 | + case 'webp': | |
| 560 | + $dataurihead = 'data:image/webp;base64,'; | |
| 561 | + break; | |
| 562 | + default: | |
| 563 | + $dataurihead = 'data:application/octet-stream;base64,'; | |
| 564 | + } | |
| 565 | + | |
| 566 | + // Encode the data. | |
| 567 | + $base64data = base64_encode( file_get_contents( $path ) ); | |
| 568 | + $head_and_data = $dataurihead . $base64data; | |
| 569 | + | |
| 570 | + // Save in cache. | |
| 571 | + $check->cache( $head_and_data, 'text/plain' ); | |
| 572 | + } | |
| 573 | + unset( $check ); | |
| 574 | + | |
| 575 | + return array( | |
| 576 | + 'full' => $head_and_data, | |
| 577 | + 'base64data' => $base64data, | |
| 578 | + ); | |
| 579 | + } | |
| 580 | + | |
| 581 | + /** | |
| 582 | + * Given an array of key/value pairs to replace in $string, | |
| 583 | + * it does so by replacing the longest-matching strings first. | |
| 584 | + * | |
| 585 | + * @param string $string string in which to replace. | |
| 586 | + * @param array $replacements to be replaced strings and replacement. | |
| 587 | + * | |
| 588 | + * @return string | |
| 589 | + */ | |
| 590 | + protected static function replace_longest_matches_first( $string, $replacements = array() ) | |
| 591 | + { | |
| 592 | + if ( ! empty( $replacements ) ) { | |
| 593 | + // Sort the replacements array by key length in desc order (so that the longest strings are replaced first). | |
| 594 | + $keys = array_map( 'strlen', array_keys( $replacements ) ); | |
| 595 | + array_multisort( $keys, SORT_DESC, $replacements ); | |
| 596 | + $string = str_replace( array_keys( $replacements ), array_values( $replacements ), $string ); | |
| 597 | + } | |
| 598 | + | |
| 599 | + return $string; | |
| 600 | + } | |
| 601 | + | |
| 602 | + /** | |
| 603 | + * Rewrites/Replaces any ASSETS_REGEX-matching urls in a string. | |
| 604 | + * Removes quotes/cruft around each one and passes it through to | |
| 605 | + * `autoptimizeBase::url_replace_cdn()`. | |
| 606 | + * Replacements are performed in a `longest-match-replaced-first` way. | |
| 607 | + * | |
| 608 | + * @param string $code CSS code. | |
| 609 | + * | |
| 610 | + * @return string | |
| 611 | + */ | |
| 612 | + public function replace_urls( $code = '' ) | |
| 613 | + { | |
| 614 | + $replacements = array(); | |
| 615 | + | |
| 616 | + preg_match_all( self::ASSETS_REGEX, $code, $url_src_matches ); | |
| 617 | + if ( is_array( $url_src_matches ) && ! empty( $url_src_matches ) ) { | |
| 618 | + foreach ( $url_src_matches[1] as $count => $original_url ) { | |
| 619 | + // Removes quotes and other cruft. | |
| 620 | + $url = trim( $original_url, " \t\n\r\0\x0B\"'" ); | |
| 621 | + | |
| 622 | + /** | |
| 623 | + * TODO/FIXME: Add a way for other code / callable to be called here | |
| 624 | + * and provide it's own results for the $replacements array | |
| 625 | + * for the "current" key. | |
| 626 | + * If such a result is returned/provided, we sholud then avoid | |
| 627 | + * calling url_replace_cdn() here for the current iteration. | |
| 628 | + * | |
| 629 | + * This would maybe allow the inlining logic currently present | |
| 630 | + * in `autoptimizeStyles::rewrite_assets()` to be "pulled out" | |
| 631 | + * and given as a callable to this method or something... and | |
| 632 | + * then we could "just" call `replace_urls()` from within | |
| 633 | + * `autoptimizeStyles::rewrite_assets()` and avoid some | |
| 634 | + * (currently present) code/logic duplication. | |
| 635 | + */ | |
| 636 | + | |
| 637 | + // Do CDN replacement if needed. | |
| 638 | + if ( ! empty( $this->cdn_url ) ) { | |
| 639 | + $replacement_url = $this->url_replace_cdn( $url ); | |
| 640 | + // Prepare replacements array. | |
| 641 | + $replacements[ $url_src_matches[1][ $count ] ] = str_replace( | |
| 642 | + $original_url, | |
| 643 | + $replacement_url, | |
| 644 | + $url_src_matches[1][ $count ] | |
| 645 | + ); | |
| 646 | + } | |
| 647 | + } | |
| 648 | + } | |
| 649 | + | |
| 650 | + $code = self::replace_longest_matches_first( $code, $replacements ); | |
| 651 | + | |
| 652 | + return $code; | |
| 653 | + } | |
| 654 | + | |
| 655 | + /** | |
| 656 | + * "Hides" @font-face declarations by replacing them with `%%FONTFACE%%` markers. | |
| 657 | + * Also does CDN replacement of any font-urls within those declarations if the `autoptimize_filter_css_fonts_cdn` | |
| 658 | + * filter is used. | |
| 659 | + * | |
| 660 | + * @param string $code HTML being processed to hide fonts. | |
| 661 | + * @return string | |
| 662 | + */ | |
| 663 | + public function hide_fontface_and_maybe_cdn( $code ) | |
| 664 | + { | |
| 665 | + // Proceed only if @font-face declarations exist within $code. | |
| 666 | + preg_match_all( self::FONT_FACE_REGEX, $code, $fontfaces ); | |
| 667 | + if ( isset( $fontfaces[0] ) ) { | |
| 668 | + // Check if we need to cdn fonts or not. | |
| 669 | + $do_font_cdn = apply_filters( 'autoptimize_filter_css_fonts_cdn', false ); | |
| 670 | + | |
| 671 | + foreach ( $fontfaces[0] as $full_match ) { | |
| 672 | + // Keep original match so we can search/replace it. | |
| 673 | + $match_search = $full_match; | |
| 674 | + | |
| 675 | + // Do font cdn if needed. | |
| 676 | + if ( $do_font_cdn ) { | |
| 677 | + $full_match = $this->replace_urls( $full_match ); | |
| 678 | + } | |
| 679 | + | |
| 680 | + // Replace declaration with its base64 encoded string. | |
| 681 | + $replacement = self::build_marker( 'FONTFACE', $full_match ); | |
| 682 | + $code = str_replace( $match_search, $replacement, $code ); | |
| 683 | + } | |
| 684 | + } | |
| 685 | + | |
| 686 | + return $code; | |
| 687 | + } | |
| 688 | + | |
| 689 | + /** | |
| 690 | + * Restores original @font-face declarations that have been "hidden" | |
| 691 | + * using `hide_fontface_and_maybe_cdn()`. | |
| 692 | + * | |
| 693 | + * @param string $code HTML being processed to unhide fonts. | |
| 694 | + * @return string | |
| 695 | + */ | |
| 696 | + public function restore_fontface( $code ) | |
| 697 | + { | |
| 698 | + return $this->restore_marked_content( 'FONTFACE', $code ); | |
| 699 | + } | |
| 700 | + | |
| 701 | + /** | |
| 702 | + * Re-write (and/or inline) referenced assets. | |
| 703 | + * | |
| 704 | + * @param string $code HTML being processed rewrite assets. | |
| 705 | + * @return string | |
| 706 | + */ | |
| 707 | + public function rewrite_assets( $code ) | |
| 708 | + { | |
| 709 | + // Handle @font-face rules by hiding and processing them separately. | |
| 710 | + $code = $this->hide_fontface_and_maybe_cdn( $code ); | |
| 711 | + | |
| 712 | + /** | |
| 713 | + * TODO/FIXME: | |
| 714 | + * Certain code parts below are kind-of repeated now in `replace_urls()`, which is not ideal. | |
| 715 | + * There is maybe a way to separate/refactor things and then be able to keep | |
| 716 | + * the ASSETS_REGEX rewriting/handling logic in a single place (along with removing quotes/cruft from matched urls). | |
| 717 | + * See comments in `replace_urls()` regarding this. The idea is to extract the inlining | |
| 718 | + * logic out (which is the only real difference between replace_urls() and the code below), but still | |
| 719 | + * achieve identical results as before. | |
| 720 | + */ | |
| 721 | + | |
| 722 | + // Re-write (and/or inline) URLs to point them to the CDN host. | |
| 723 | + $url_src_matches = array(); | |
| 724 | + $imgreplace = array(); | |
| 725 | + | |
| 726 | + // Matches and captures anything specified within the literal `url()` and excludes those containing data: URIs. | |
| 727 | + preg_match_all( self::ASSETS_REGEX, $code, $url_src_matches ); | |
| 728 | + if ( is_array( $url_src_matches ) && ! empty( $url_src_matches ) ) { | |
| 729 | + foreach ( $url_src_matches[1] as $count => $original_url ) { | |
| 730 | + // Removes quotes and other cruft. | |
| 731 | + $url = trim( $original_url, " \t\n\r\0\x0B\"'" ); | |
| 732 | + | |
| 733 | + // If datauri inlining is turned on, do it. | |
| 734 | + $inlined = false; | |
| 735 | + if ( $this->datauris ) { | |
| 736 | + $iurl = $url; | |
| 737 | + if ( false !== strpos( $iurl, '?' ) ) { | |
| 738 | + $iurl = strtok( $iurl, '?' ); | |
| 739 | + } | |
| 740 | + | |
| 741 | + $ipath = $this->getpath( $iurl ); | |
| 742 | + | |
| 743 | + $excluded = $this->check_datauri_exclude_list( $ipath ); | |
| 744 | + if ( ! $excluded ) { | |
| 745 | + $is_datauri_candidate = $this->is_datauri_candidate( $ipath ); | |
| 746 | + if ( $is_datauri_candidate ) { | |
| 747 | + $datauri = $this->build_or_get_datauri_image( $ipath ); | |
| 748 | + $base64data = $datauri['base64data']; | |
| 749 | + // Add it to the list for replacement. | |
| 750 | + $imgreplace[ $url_src_matches[1][ $count ] ] = str_replace( | |
| 751 | + $original_url, | |
| 752 | + $datauri['full'], | |
| 753 | + $url_src_matches[1][ $count ] | |
| 754 | + ); | |
| 755 | + $inlined = true; | |
| 756 | + } | |
| 757 | + } | |
| 758 | + } | |
| 759 | + | |
| 760 | + /** | |
| 761 | + * Doing CDN URL replacement for every found match (if CDN is | |
| 762 | + * specified). This way we make sure to do it even if | |
| 763 | + * inlining isn't turned on, or if a resource is skipped from | |
| 764 | + * being inlined for whatever reason above. | |
| 765 | + */ | |
| 766 | + if ( ! $inlined && ( ! empty( $this->cdn_url ) || has_filter( 'autoptimize_filter_base_replace_cdn' ) ) ) { | |
| 767 | + // Just do the "simple" CDN replacement. | |
| 768 | + $replacement_url = $this->url_replace_cdn( $url ); | |
| 769 | + $imgreplace[ $url_src_matches[1][ $count ] ] = str_replace( | |
| 770 | + $original_url, | |
| 771 | + $replacement_url, | |
| 772 | + $url_src_matches[1][ $count ] | |
| 773 | + ); | |
| 774 | + } | |
| 775 | + } | |
| 776 | + } | |
| 777 | + | |
| 778 | + $code = self::replace_longest_matches_first( $code, $imgreplace ); | |
| 779 | + | |
| 780 | + // Replace back font-face markers with actual font-face declarations. | |
| 781 | + $code = $this->restore_fontface( $code ); | |
| 782 | + | |
| 783 | + return $code; | |
| 784 | + } | |
| 785 | + | |
| 786 | + /** | |
| 787 | + * Joins and optimizes CSS. | |
| 788 | + */ | |
| 789 | + public function minify() | |
| 790 | + { | |
| 791 | + foreach ( $this->css as $group ) { | |
| 792 | + list( $media, $css ) = $group; | |
| 793 | + if ( preg_match( '#^INLINE;#', $css ) ) { | |
| 794 | + // <style>. | |
| 795 | + $css = preg_replace( '#^INLINE;#', '', $css ); | |
| 796 | + $css = self::fixurls( ABSPATH . 'index.php', $css ); // ABSPATH already contains a trailing slash. | |
| 797 | + $tmpstyle = apply_filters( 'autoptimize_css_individual_style', $css, '' ); | |
| 798 | + if ( has_filter( 'autoptimize_css_individual_style' ) && ! empty( $tmpstyle ) ) { | |
| 799 | + $css = $tmpstyle; | |
| 800 | + $this->alreadyminified = true; | |
| 801 | + } | |
| 802 | + } else { | |
| 803 | + // <link> | |
| 804 | + if ( false !== $css && file_exists( $css ) && is_readable( $css ) ) { | |
| 805 | + $css_path = $css; | |
| 806 | + $css = self::fixurls( $css_path, file_get_contents( $css_path ) ); | |
| 807 | + $css = preg_replace( '/\x{EF}\x{BB}\x{BF}/', '', $css ); | |
| 808 | + $tmpstyle = apply_filters( 'autoptimize_css_individual_style', $css, $css_path ); | |
| 809 | + if ( has_filter( 'autoptimize_css_individual_style' ) && ! empty( $tmpstyle ) ) { | |
| 810 | + $css = $tmpstyle; | |
| 811 | + $this->alreadyminified = true; | |
| 812 | + } elseif ( $this->can_inject_late( $css_path, $css ) ) { | |
| 813 | + $css = self::build_injectlater_marker( $css_path, md5( $css ) ); | |
| 814 | + } | |
| 815 | + } else { | |
| 816 | + // Couldn't read CSS. Maybe getpath isn't working? | |
| 817 | + $css = ''; | |
| 818 | + } | |
| 819 | + } | |
| 820 | + | |
| 821 | + foreach ( $media as $elem ) { | |
| 822 | + if ( ! empty( $css ) ) { | |
| 823 | + if ( ! isset( $this->csscode[ $elem ] ) ) { | |
| 824 | + $this->csscode[ $elem ] = ''; | |
| 825 | + } | |
| 826 | + $this->csscode[ $elem ] .= "\n/*FILESTART*/" . $css; | |
| 827 | + } | |
| 828 | + } | |
| 829 | + } | |
| 830 | + | |
| 831 | + // Check for duplicate code. | |
| 832 | + $md5list = array(); | |
| 833 | + $tmpcss = $this->csscode; | |
| 834 | + foreach ( $tmpcss as $media => $code ) { | |
| 835 | + $md5sum = md5( $code ); | |
| 836 | + $medianame = $media; | |
| 837 | + foreach ( $md5list as $med => $sum ) { | |
| 838 | + // If same code. | |
| 839 | + if ( $sum === $md5sum ) { | |
| 840 | + // Add the merged code. | |
| 841 | + $medianame = $med . ', ' . $media; | |
| 842 | + $this->csscode[ $medianame ] = $code; | |
| 843 | + $md5list[ $medianame ] = $md5list[ $med ]; | |
| 844 | + unset( $this->csscode[ $med ], $this->csscode[ $media ], $md5list[ $med ] ); | |
| 845 | + } | |
| 846 | + } | |
| 847 | + $md5list[ $medianame ] = $md5sum; | |
| 848 | + } | |
| 849 | + unset( $tmpcss ); | |
| 850 | + | |
| 851 | + // Manage @imports, while is for recursive import management. | |
| 852 | + foreach ( $this->csscode as &$thiscss ) { | |
| 853 | + // Flag to trigger import reconstitution and var to hold external imports. | |
| 854 | + $fiximports = false; | |
| 855 | + $external_imports = ''; | |
| 856 | + | |
| 857 | + // remove comments to avoid importing commented-out imports. | |
| 858 | + $thiscss_nocomments = preg_replace( '#/\*.*\*/#Us', '', $thiscss ); | |
| 859 | + while ( preg_match_all( '#@import +(?:url)?(?:(?:\((["\']?)(?:[^"\')]+)\1\)|(["\'])(?:[^"\']+)\2)(?:[^,;"\']+(?:,[^,;"\']+)*)?)(?:;)#mi', $thiscss_nocomments, $matches ) ) { | |
| 860 | + foreach ( $matches[0] as $import ) { | |
| 861 | + if ( $this->isremovable( $import, $this->cssremovables ) ) { | |
| 862 | + $thiscss = str_replace( $import, '', $thiscss ); | |
| 863 | + $import_ok = true; | |
| 864 | + } else { | |
| 865 | + $url = trim( preg_replace( '#^.*((?:https?:|ftp:)?//.*\.css).*$#', '$1', trim( $import ) ), " \t\n\r\0\x0B\"'" ); | |
| 866 | + $path = $this->getpath( $url ); | |
| 867 | + $import_ok = false; | |
| 868 | + if ( file_exists( $path ) && is_readable( $path ) ) { | |
| 869 | + $code = addcslashes( self::fixurls( $path, file_get_contents( $path ) ), '\\' ); | |
| 870 | + $code = preg_replace( '/\x{EF}\x{BB}\x{BF}/', '', $code ); | |
| 871 | + $tmpstyle = apply_filters( 'autoptimize_css_individual_style', $code, '' ); | |
| 872 | + if ( has_filter( 'autoptimize_css_individual_style' ) && ! empty( $tmpstyle ) ) { | |
| 873 | + $code = $tmpstyle; | |
| 874 | + $this->alreadyminified = true; | |
| 875 | + } elseif ( $this->can_inject_late( $path, $code ) ) { | |
| 876 | + $code = self::build_injectlater_marker( $path, md5( $code ) ); | |
| 877 | + } | |
| 878 | + | |
| 879 | + if ( ! empty( $code ) ) { | |
| 880 | + $tmp_thiscss = str_replace( $import, stripcslashes( $code ), $thiscss ); | |
| 881 | + if ( ! empty( $tmp_thiscss ) ) { | |
| 882 | + $thiscss = $tmp_thiscss; | |
| 883 | + $import_ok = true; | |
| 884 | + unset( $tmp_thiscss ); | |
| 885 | + } | |
| 886 | + } | |
| 887 | + unset( $code ); | |
| 888 | + } | |
| 889 | + } | |
| 890 | + if ( ! $import_ok ) { | |
| 891 | + // External imports and general fall-back. | |
| 892 | + $external_imports .= $import; | |
| 893 | + | |
| 894 | + $thiscss = str_replace( $import, '', $thiscss ); | |
| 895 | + $fiximports = true; | |
| 896 | + } | |
| 897 | + } | |
| 898 | + $thiscss = preg_replace( '#/\*FILESTART\*/#', '', $thiscss ); | |
| 899 | + $thiscss = preg_replace( '#/\*FILESTART2\*/#', '/*FILESTART*/', $thiscss ); | |
| 900 | + | |
| 901 | + // and update $thiscss_nocomments before going into next iteration in while loop. | |
| 902 | + $thiscss_nocomments = preg_replace( '#/\*.*\*/#Us', '', $thiscss ); | |
| 903 | + } | |
| 904 | + unset( $thiscss_nocomments ); | |
| 905 | + | |
| 906 | + // Add external imports to top of aggregated CSS. | |
| 907 | + if ( $fiximports ) { | |
| 908 | + $thiscss = $external_imports . $thiscss; | |
| 909 | + } | |
| 910 | + } | |
| 911 | + unset( $thiscss ); | |
| 912 | + | |
| 913 | + // $this->csscode has all the uncompressed code now. | |
| 914 | + foreach ( $this->csscode as &$code ) { | |
| 915 | + // Check for already-minified code. | |
| 916 | + $hash = md5( $code ); | |
| 917 | + do_action( 'autoptimize_action_css_hash', $hash ); | |
| 918 | + $ccheck = new autoptimizeCache( $hash, 'css' ); | |
| 919 | + if ( $ccheck->check() ) { | |
| 920 | + $code = $ccheck->retrieve(); | |
| 921 | + $this->hashmap[ md5( $code ) ] = $hash; | |
| 922 | + continue; | |
| 923 | + } | |
| 924 | + unset( $ccheck ); | |
| 925 | + | |
| 926 | + // Rewrite and/or inline referenced assets. | |
| 927 | + $code = $this->rewrite_assets( $code ); | |
| 928 | + | |
| 929 | + // Minify. | |
| 930 | + $code = $this->run_minifier_on( $code ); | |
| 931 | + | |
| 932 | + // Bring back INJECTLATER stuff. | |
| 933 | + $code = $this->inject_minified( $code ); | |
| 934 | + | |
| 935 | + // Filter results. | |
| 936 | + $tmp_code = apply_filters( 'autoptimize_css_after_minify', $code ); | |
| 937 | + if ( ! empty( $tmp_code ) ) { | |
| 938 | + $code = $tmp_code; | |
| 939 | + unset( $tmp_code ); | |
| 940 | + } | |
| 941 | + | |
| 942 | + $this->hashmap[ md5( $code ) ] = $hash; | |
| 943 | + } | |
| 944 | + | |
| 945 | + unset( $code ); | |
| 946 | + return true; | |
| 947 | + } | |
| 948 | + | |
| 949 | + public function run_minifier_on( $code ) | |
| 950 | + { | |
| 951 | + if ( ! $this->alreadyminified ) { | |
| 952 | + $do_minify = apply_filters( 'autoptimize_css_do_minify', true ); | |
| 953 | + | |
| 954 | + if ( $do_minify ) { | |
| 955 | + $cssmin = new autoptimizeCSSmin(); | |
| 956 | + $tmp_code = trim( $cssmin->run( $code ) ); | |
| 957 | + | |
| 958 | + if ( ! empty( $tmp_code ) ) { | |
| 959 | + $code = $tmp_code; | |
| 960 | + unset( $tmp_code ); | |
| 961 | + } | |
| 962 | + } | |
| 963 | + } | |
| 964 | + | |
| 965 | + return $code; | |
| 966 | + } | |
| 967 | + | |
| 968 | + /** | |
| 969 | + * Caches the CSS in uncompressed, deflated and gzipped form. | |
| 970 | + */ | |
| 971 | + public function cache() | |
| 972 | + { | |
| 973 | + // CSS cache. | |
| 974 | + foreach ( $this->csscode as $media => $code ) { | |
| 975 | + if ( empty( $code ) ) { | |
| 976 | + continue; | |
| 977 | + } | |
| 978 | + | |
| 979 | + $md5 = $this->hashmap[ md5( $code ) ]; | |
| 980 | + $cache = new autoptimizeCache( $md5, 'css' ); | |
| 981 | + if ( ! $cache->check() ) { | |
| 982 | + // Cache our code. | |
| 983 | + $cache->cache( $code, 'text/css' ); | |
| 984 | + } | |
| 985 | + $this->url[ $media ] = AUTOPTIMIZE_CACHE_URL . $cache->getname(); | |
| 986 | + } | |
| 987 | + } | |
| 988 | + | |
| 989 | + /** | |
| 990 | + * Returns the content. | |
| 991 | + */ | |
| 992 | + public function getcontent() | |
| 993 | + { | |
| 994 | + // Restore the full content (only applies when "autoptimize_filter_css_justhead" filter is true). | |
| 995 | + if ( ! empty( $this->restofcontent ) ) { | |
| 996 | + $this->content .= $this->restofcontent; | |
| 997 | + $this->restofcontent = ''; | |
| 998 | + } | |
| 999 | + | |
| 1000 | + // type is not added by default. | |
| 1001 | + $type_css = ''; | |
| 1002 | + if ( apply_filters( 'autoptimize_filter_cssjs_addtype', false ) ) { | |
| 1003 | + $type_css = 'type="text/css" '; | |
| 1004 | + } | |
| 1005 | + | |
| 1006 | + // Inject the new stylesheets, if possible after SEO stuff, but we need to | |
| 1007 | + // already restore script to be able to inject before ld+json instead of title | |
| 1008 | + // this should be safe here as all has been extracted already but behind a filter anyway. | |
| 1009 | + if ( $this->inline && true === apply_filters( 'autoptimize_filter_css_restore_js_early', true ) ) { | |
| 1010 | + $this->content = $this->restore_marked_content( 'SCRIPT', $this->content ); | |
| 1011 | + } | |
| 1012 | + $_strpos_ldjson = strpos( $this->content, '<script type="application/ld+json"' ); | |
| 1013 | + if ( false !== $_strpos_ldjson && $_strpos_ldjson < strpos( $this->content, '</head' ) ) { | |
| 1014 | + $replace_tag = array( '<script type="application/ld+json"', 'before' ); | |
| 1015 | + } else { | |
| 1016 | + $replace_tag = array( '<title', 'before' ); | |
| 1017 | + } | |
| 1018 | + $replace_tag = apply_filters( 'autoptimize_filter_css_replacetag', $replace_tag, $this->content ); | |
| 1019 | + | |
| 1020 | + if ( $this->inline ) { | |
| 1021 | + foreach ( $this->csscode as $media => $code ) { | |
| 1022 | + $this->inject_in_html( apply_filters( 'autoptimize_filter_css_bodyreplacementpayload', '<style ' . $type_css . 'media="' . $media . '">' . $code . '</style>' ), $replace_tag ); | |
| 1023 | + } | |
| 1024 | + } else { | |
| 1025 | + if ( $this->defer ) { | |
| 1026 | + $preload_css_block = ''; | |
| 1027 | + $inlined_ccss_block = ''; | |
| 1028 | + $noscript_css_block = '<noscript id="aonoscrcss">'; | |
| 1029 | + | |
| 1030 | + $defer_inline_code = $this->defer_inline; | |
| 1031 | + if ( ! empty( $defer_inline_code ) ) { | |
| 1032 | + if ( apply_filters( 'autoptimize_filter_css_critcss_minify', true ) ) { | |
| 1033 | + $icss_hash = md5( $defer_inline_code ); | |
| 1034 | + $icss_cache = new autoptimizeCache( $icss_hash, 'css' ); | |
| 1035 | + if ( $icss_cache->check() ) { | |
| 1036 | + // we have the optimized inline CSS in cache. | |
| 1037 | + $defer_inline_code = $icss_cache->retrieve(); | |
| 1038 | + } else { | |
| 1039 | + $cssmin = new autoptimizeCSSmin(); | |
| 1040 | + $tmp_code = trim( $cssmin->run( $defer_inline_code ) ); | |
| 1041 | + | |
| 1042 | + if ( ! empty( $tmp_code ) ) { | |
| 1043 | + $defer_inline_code = $tmp_code; | |
| 1044 | + $icss_cache->cache( $defer_inline_code, 'text/css' ); | |
| 1045 | + unset( $tmp_code ); | |
| 1046 | + } | |
| 1047 | + } | |
| 1048 | + } | |
| 1049 | + // inlined critical css set here, but injected when full CSS is injected | |
| 1050 | + // to avoid CSS containing SVG with <title tag receiving the full CSS link. | |
| 1051 | + $inlined_ccss_block = '<style ' . $type_css . 'id="aoatfcss" media="all">' . $defer_inline_code . '</style>'; | |
| 1052 | + } | |
| 1053 | + } | |
| 1054 | + | |
| 1055 | + foreach ( $this->url as $media => $url ) { | |
| 1056 | + $url = $this->url_replace_cdn( $url ); | |
| 1057 | + | |
| 1058 | + // Add the stylesheet either deferred (import at bottom) or normal links in head. | |
| 1059 | + if ( $this->defer && 'print' !== $media ) { | |
| 1060 | + $preload_onload = autoptimizeConfig::get_ao_css_preload_onload( $media ); | |
| 1061 | + | |
| 1062 | + $preload_css_block .= apply_filters( 'autoptimize_filter_css_single_deferred_link', '<link rel="stylesheet" media="print" href="' . $url . '" onload="' . $preload_onload . '">' ); | |
| 1063 | + if ( apply_filters( 'autoptimize_filter_css_preload_and_print', false ) ) { | |
| 1064 | + $preload_css_block = '<link rel="preload" as="stylesheet" href="' . $url . '"/>' . $preload_css_block; | |
| 1065 | + } | |
| 1066 | + $noscript_css_block .= '<link ' . $type_css . 'media="' . $media . '" href="' . $url . '" rel="stylesheet">'; | |
| 1067 | + } else { | |
| 1068 | + if ( strlen( $this->csscode[ $media ] ) > $this->cssinlinesize ) { | |
| 1069 | + $this->inject_in_html( apply_filters( 'autoptimize_filter_css_bodyreplacementpayload', '<link ' . $type_css . 'media="' . $media . '" href="' . $url . '" rel="stylesheet">' ), $replace_tag ); | |
| 1070 | + } elseif ( strlen( $this->csscode[ $media ] ) > 0 ) { | |
| 1071 | + $this->inject_in_html( apply_filters( 'autoptimize_filter_css_bodyreplacementpayload', '<style ' . $type_css . 'media="' . $media . '">' . $this->csscode[ $media ] . '</style>' ), $replace_tag ); | |
| 1072 | + } | |
| 1073 | + } | |
| 1074 | + } | |
| 1075 | + | |
| 1076 | + if ( $this->defer ) { | |
| 1077 | + $noscript_css_block .= '</noscript>'; | |
| 1078 | + // Inject inline critical CSS, the preloaded full CSS and the noscript-CSS. | |
| 1079 | + $this->inject_in_html( apply_filters( 'autoptimize_filter_css_bodyreplacementpayload', $inlined_ccss_block . $preload_css_block . $noscript_css_block ), $replace_tag ); | |
| 1080 | + } | |
| 1081 | + } | |
| 1082 | + | |
| 1083 | + // restore comments. | |
| 1084 | + $this->content = $this->restore_comments( $this->content ); | |
| 1085 | + | |
| 1086 | + // restore IE hacks. | |
| 1087 | + $this->content = $this->restore_iehacks( $this->content ); | |
| 1088 | + | |
| 1089 | + // restore (no)script. | |
| 1090 | + $this->content = $this->restore_marked_content( 'SCRIPT', $this->content ); | |
| 1091 | + | |
| 1092 | + // Restore noptimize. | |
| 1093 | + $this->content = $this->restore_noptimize( $this->content ); | |
| 1094 | + | |
| 1095 | + // Return the modified stylesheet. | |
| 1096 | + return $this->content; | |
| 1097 | + } | |
| 1098 | + | |
| 1099 | + /** | |
| 1100 | + * Make sure URL's are absolute iso relative to original CSS location. | |
| 1101 | + * | |
| 1102 | + * @param string $file filename of optimized CSS-file. | |
| 1103 | + * @param string $code CSS-code in which to fix URL's. | |
| 1104 | + */ | |
| 1105 | + static function fixurls( $file, $code ) | |
| 1106 | + { | |
| 1107 | + // Switch all imports to the url() syntax. | |
| 1108 | + $code = preg_replace( '#@import ("|\')(.+?)\.css.*?("|\')#', '@import url("${2}.css")', $code ); | |
| 1109 | + | |
| 1110 | + if ( preg_match_all( self::ASSETS_REGEX, $code, $matches ) ) { | |
| 1111 | + $file = str_replace( WP_ROOT_DIR, '/', $file ); | |
| 1112 | + /** | |
| 1113 | + * Rollback as per https://github.com/futtta/autoptimize/issues/94 | |
| 1114 | + * $file = str_replace( AUTOPTIMIZE_WP_CONTENT_NAME, '', $file ); | |
| 1115 | + */ | |
| 1116 | + $dir = dirname( $file ); // Like /themes/expound/css. | |
| 1117 | + | |
| 1118 | + /** | |
| 1119 | + * $dir should not contain backslashes, since it's used to replace | |
| 1120 | + * urls, but it can contain them when running on Windows because | |
| 1121 | + * fixurls() is sometimes called with `ABSPATH . 'index.php'` | |
| 1122 | + */ | |
| 1123 | + $dir = str_replace( '\\', '/', $dir ); | |
| 1124 | + unset( $file ); // not used below at all. | |
| 1125 | + | |
| 1126 | + $replace = array(); | |
| 1127 | + foreach ( $matches[1] as $k => $url ) { | |
| 1128 | + // Remove quotes. | |
| 1129 | + $url = trim( $url, " \t\n\r\0\x0B\"'" ); | |
| 1130 | + $no_q_url = trim( $url, "\"'" ); | |
| 1131 | + if ( $url !== $no_q_url ) { | |
| 1132 | + $removed_quotes = true; | |
| 1133 | + } else { | |
| 1134 | + $removed_quotes = false; | |
| 1135 | + } | |
| 1136 | + | |
| 1137 | + if ( '' === $no_q_url ) { | |
| 1138 | + continue; | |
| 1139 | + } | |
| 1140 | + | |
| 1141 | + $url = $no_q_url; | |
| 1142 | + if ( '/' === $url[0] || preg_match( '#^(https?://|ftp://|data:)#i', $url ) ) { | |
| 1143 | + // URL is protocol-relative, host-relative or something we don't touch. | |
| 1144 | + continue; | |
| 1145 | + } else { // Relative URL. | |
| 1146 | + | |
| 1147 | + /* | |
| 1148 | + * rollback as per https://github.com/futtta/autoptimize/issues/94 | |
| 1149 | + * $newurl = preg_replace( '/https?:/', '', str_replace( ' ', '%20', AUTOPTIMIZE_WP_CONTENT_URL . str_replace( '//', '/', $dir . '/' . $url ) ) ); | |
| 1150 | + */ | |
| 1151 | + $newurl = preg_replace( '/https?:/', '', str_replace( ' ', '%20', AUTOPTIMIZE_WP_ROOT_URL . str_replace( '//', '/', $dir . '/' . $url ) ) ); | |
| 1152 | + $newurl = apply_filters( 'autoptimize_filter_css_fixurl_newurl', $newurl ); | |
| 1153 | + | |
| 1154 | + /** | |
| 1155 | + * Hash the url + whatever was behind potentially for replacement | |
| 1156 | + * We must do this, or different css classes referencing the same bg image (but | |
| 1157 | + * different parts of it, say, in sprites and such) loose their stuff... | |
| 1158 | + */ | |
| 1159 | + $hash = md5( $url . $matches[2][ $k ] ); | |
| 1160 | + $code = str_replace( $matches[0][ $k ], $hash, $code ); | |
| 1161 | + | |
| 1162 | + if ( $removed_quotes ) { | |
| 1163 | + $replace[ $hash ] = "url('" . $newurl . "')" . $matches[2][ $k ]; | |
| 1164 | + } else { | |
| 1165 | + $replace[ $hash ] = 'url(' . $newurl . ')' . $matches[2][ $k ]; | |
| 1166 | + } | |
| 1167 | + } | |
| 1168 | + } | |
| 1169 | + | |
| 1170 | + $code = self::replace_longest_matches_first( $code, $replace ); | |
| 1171 | + } | |
| 1172 | + | |
| 1173 | + return $code; | |
| 1174 | + } | |
| 1175 | + | |
| 1176 | + private function ismovable( $tag ) | |
| 1177 | + { | |
| 1178 | + if ( ! $this->aggregate ) { | |
| 1179 | + return false; | |
| 1180 | + } | |
| 1181 | + | |
| 1182 | + if ( ! empty( $this->allowlist ) ) { | |
| 1183 | + foreach ( $this->allowlist as $match ) { | |
| 1184 | + if ( false !== strpos( $tag, $match ) ) { | |
| 1185 | + return true; | |
| 1186 | + } | |
| 1187 | + } | |
| 1188 | + // no match with allowlist. | |
| 1189 | + return false; | |
| 1190 | + } else { | |
| 1191 | + if ( is_array( $this->dontmove ) && ! empty( $this->dontmove ) ) { | |
| 1192 | + foreach ( $this->dontmove as $match ) { | |
| 1193 | + if ( false !== strpos( $tag, $match ) ) { | |
| 1194 | + // Matched something. | |
| 1195 | + return false; | |
| 1196 | + } | |
| 1197 | + } | |
| 1198 | + } | |
| 1199 | + | |
| 1200 | + // If we're here it's safe to move. | |
| 1201 | + return true; | |
| 1202 | + } | |
| 1203 | + } | |
| 1204 | + | |
| 1205 | + private function can_inject_late( $css_path, $css ) | |
| 1206 | + { | |
| 1207 | + $consider_minified_array = apply_filters( 'autoptimize_filter_css_consider_minified', false, $css_path ); | |
| 1208 | + if ( true !== $this->inject_min_late ) { | |
| 1209 | + // late-inject turned off. | |
| 1210 | + return false; | |
| 1211 | + } elseif ( ( false === strpos( $css_path, 'min.css' ) ) && ( str_replace( $consider_minified_array, '', $css_path ) === $css_path ) ) { | |
| 1212 | + // file not minified based on filename & filter. | |
| 1213 | + return false; | |
| 1214 | + } elseif ( false !== strpos( $css, '@import' ) ) { | |
| 1215 | + // can't late-inject files with imports as those need to be aggregated. | |
| 1216 | + return false; | |
| 1217 | + } elseif ( ( false !== strpos( $css, '@font-face' ) ) && ( apply_filters( 'autoptimize_filter_css_fonts_cdn', false ) === true ) && ( ! empty( $this->cdn_url ) ) ) { | |
| 1218 | + // don't late-inject CSS with font-src's if fonts are set to be CDN'ed. | |
| 1219 | + return false; | |
| 1220 | + } elseif ( ( ( true == $this->datauris ) || ( ! empty( $this->cdn_url ) ) ) && preg_match( '#background[^;}]*url\(#Ui', $css ) ) { | |
| 1221 | + // don't late-inject CSS with images if CDN is set OR if image inlining is on. | |
| 1222 | + return false; | |
| 1223 | + } else { | |
| 1224 | + // phew, all is safe, we can late-inject. | |
| 1225 | + return true; | |
| 1226 | + } | |
| 1227 | + } | |
| 1228 | + | |
| 1229 | + /** | |
| 1230 | + * Minifies (and cdn-replaces) a single local css file | |
| 1231 | + * and returns its (cached) url. | |
| 1232 | + * | |
| 1233 | + * @param string $filepath Filepath. | |
| 1234 | + * @param bool $cache_miss Optional. Force a cache miss. Default false. | |
| 1235 | + * | |
| 1236 | + * @return bool|string Url pointing to the minified css file or false. | |
| 1237 | + */ | |
| 1238 | + public function minify_single( $filepath, $cache_miss = false ) | |
| 1239 | + { | |
| 1240 | + $contents = $this->prepare_minify_single( $filepath ); | |
| 1241 | + | |
| 1242 | + if ( empty( $contents ) ) { | |
| 1243 | + // if aggregate is off and CCSS is used but all files are minified already, then we | |
| 1244 | + // must make sure the autoptimize_action_css_hash action still fires for CCSS's sake. | |
| 1245 | + $ao_ccss_key = get_option( 'autoptimize_ccss_key', '' ); | |
| 1246 | + if ( false === $this->aggregate && isset( $ao_ccss_key ) && ! empty( $ao_ccss_key ) ) { | |
| 1247 | + $hash = 'single_' . md5( file_get_contents( $filepath ) ); | |
| 1248 | + do_action( 'autoptimize_action_css_hash', $hash ); | |
| 1249 | + } | |
| 1250 | + return false; | |
| 1251 | + } | |
| 1252 | + | |
| 1253 | + // Check cache. | |
| 1254 | + $hash = 'single_' . md5( $contents ); | |
| 1255 | + $cache = new autoptimizeCache( $hash, 'css' ); | |
| 1256 | + do_action( 'autoptimize_action_css_hash', $hash ); | |
| 1257 | + | |
| 1258 | + // If not in cache already, minify... | |
| 1259 | + if ( ! $cache->check() || $cache_miss ) { | |
| 1260 | + // Fixurls... | |
| 1261 | + $contents = self::fixurls( $filepath, $contents ); | |
| 1262 | + // CDN-replace any referenced assets if needed... | |
| 1263 | + $contents = $this->hide_fontface_and_maybe_cdn( $contents ); | |
| 1264 | + $contents = $this->replace_urls( $contents ); | |
| 1265 | + $contents = $this->restore_fontface( $contents ); | |
| 1266 | + // Now minify... | |
| 1267 | + $cssmin = new autoptimizeCSSmin(); | |
| 1268 | + $contents = trim( $cssmin->run( $contents ) ); | |
| 1269 | + | |
| 1270 | + // Check if minified cache content is empty. | |
| 1271 | + if ( empty( $contents ) ) { | |
| 1272 | + return false; | |
| 1273 | + } | |
| 1274 | + | |
| 1275 | + // Filter contents of excluded minified CSS. | |
| 1276 | + $contents = apply_filters( 'autoptimize_filter_css_single_after_minify', $contents ); | |
| 1277 | + | |
| 1278 | + // Store in cache. | |
| 1279 | + $cache->cache( $contents, 'text/css' ); | |
| 1280 | + } | |
| 1281 | + | |
| 1282 | + $url = $this->build_minify_single_url( $cache ); | |
| 1283 | + | |
| 1284 | + return $url; | |
| 1285 | + } | |
| 1286 | + | |
| 1287 | + /** | |
| 1288 | + * Returns whether we're doing aggregation or not. | |
| 1289 | + * | |
| 1290 | + * @return bool | |
| 1291 | + */ | |
| 1292 | + public function aggregating() | |
| 1293 | + { | |
| 1294 | + return $this->aggregate; | |
| 1295 | + } | |
| 1296 | + | |
| 1297 | + public function getOptions() | |
| 1298 | + { | |
| 1299 | + return $this->options; | |
| 1300 | + } | |
| 1301 | + | |
| 1302 | + public function replaceOptions( $options ) | |
| 1303 | + { | |
| 1304 | + $this->options = $options; | |
| 1305 | + } | |
| 1306 | + | |
| 1307 | + public function setOption( $name, $value ) | |
| 1308 | + { | |
| 1309 | + $this->options[ $name ] = $value; | |
| 1310 | + $this->$name = $value; | |
| 1311 | + } | |
| 1312 | + | |
| 1313 | + public function getOption( $name ) | |
| 1314 | + { | |
| 1315 | + return $this->options[ $name ]; | |
| 1316 | + } | |
| 1317 | + | |
| 1318 | + /** | |
| 1319 | + * Sanitize user-provided CSS. | |
| 1320 | + * | |
| 1321 | + * For now just strip_tags (the WordPress way) and preg_replace to escape < in certain cases but might do full CSS escaping in the future, see: | |
| 1322 | + * https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.html#rule-4-css-encode-and-strictly-validate-before-inserting-untrusted-data-into-html-style-property-values | |
| 1323 | + * https://github.com/twigphp/Twig/blob/3.x/src/Extension/EscaperExtension.php#L300-L319 | |
| 1324 | + * https://github.com/laminas/laminas-escaper/blob/2.8.x/src/Escaper.php#L205-L221 | |
| 1325 | + * | |
| 1326 | + * @param string $css the to be sanitized CSS. | |
| 1327 | + * @return string sanitized CSS. | |
| 1328 | + */ | |
| 1329 | + public static function sanitize_css( $css ) | |
| 1330 | + { | |
| 1331 | + $css = wp_strip_all_tags( $css ); | |
| 1332 | + if ( strpos( $css, '<' ) !== false ) { | |
| 1333 | + $css = preg_replace( '#<(\/?\w+)#', '\00003C$1', $css ); | |
| 1334 | + } | |
| 1335 | + return $css; | |
| 1336 | + } | |
| 1337 | +} | |
