| @@ -1,701 +1,468 @@ | ||
| 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.onload=null;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\'>!function(t){"use strict";t.loadCSS||(t.loadCSS=function(){});var e=loadCSS.relpreload={};if(e.support=function(){var e;try{e=t.document.createElement("link").relList.supports("preload")}catch(t){e=!1}return function(){return e}}(),e.bindMediaToggle=function(t){function e(){t.media=a}var a=t.media||"all";t.addEventListener?t.addEventListener("load",e):t.attachEvent&&t.attachEvent("onload",e),setTimeout(function(){t.rel="stylesheet",t.media="only x"}),setTimeout(e,3e3)},e.poly=function(){if(!e.support())for(var a=t.document.getElementsByTagName("link"),n=0;n<a.length;n++){var o=a[n];"preload"!==o.rel||"style"!==o.getAttribute("as")||o.getAttribute("data-loadcss")||(o.setAttribute("data-loadcss",!0),e.bindMediaToggle(o))}},!e.support()){e.poly();var a=t.setInterval(e.poly,500);t.addEventListener?t.addEventListener("load",function(){e.poly(),t.clearInterval(a)}):t.attachEvent&&t.attachEvent("onload",function(){e.poly(),t.clearInterval(a)})}"undefined"!=typeof exports?exports.loadCSS=loadCSS:t.loadCSS=loadCSS}("undefined"!=typeof global?global:this);</script>'; | |
| 560 | - $noScriptCssBlock .= "</noscript>"; | |
| 561 | - $this->inject_in_html($preloadCssBlock.$noScriptCssBlock,$replaceTag); | |
| 562 | - | |
| 563 | - // Adds preload polyfill at end of body tag | |
| 564 | - $this->inject_in_html( | |
| 565 | - apply_filters('autoptimize_css_preload_polyfill', $preloadPolyfill), | |
| 566 | - array('</body>','before') | |
| 567 | - ); | |
| 568 | - } | |
| 569 | - } | |
| 570 | - | |
| 571 | - //Return the modified stylesheet | |
| 572 | - return $this->content; | |
| 573 | - } | |
| 574 | - | |
| 575 | - static function fixurls($file, $code) { | |
| 576 | - // Switch all imports to the url() syntax | |
| 577 | - $code = preg_replace( '#@import ("|\')(.+?)\.css.*?("|\')#', '@import url("${2}.css")', $code ); | |
| 578 | - | |
| 579 | - if ( preg_match_all( self::ASSETS_REGEX, $code, $matches ) ) { | |
| 580 | - $file = str_replace( WP_ROOT_DIR, '/', $file ); | |
| 581 | - $dir = dirname( $file ); // Like /themes/expound/css | |
| 582 | - | |
| 583 | - // $dir should not contain backslashes, since it's used to replace | |
| 584 | - // urls, but it can contain them when running on Windows because | |
| 585 | - // fixurls() is sometimes called with `ABSPATH . 'index.php'` | |
| 586 | - $dir = str_replace( '\\', '/', $dir ); | |
| 587 | - unset( $file ); // not used below at all | |
| 588 | - | |
| 589 | - $replace = array(); | |
| 590 | - foreach ( $matches[1] as $k => $url ) { | |
| 591 | - // Remove quotes | |
| 592 | - $url = trim( $url," \t\n\r\0\x0B\"'" ); | |
| 593 | - $noQurl = trim( $url, "\"'" ); | |
| 594 | - if ( $url !== $noQurl ) { | |
| 595 | - $removedQuotes = true; | |
| 596 | - } else { | |
| 597 | - $removedQuotes = false; | |
| 598 | - } | |
| 599 | - | |
| 600 | - if ( '' === $noQurl ) { | |
| 601 | - continue; | |
| 602 | - } | |
| 603 | - | |
| 604 | - $url = $noQurl; | |
| 605 | - if ( '/' === $url{0} || preg_match( '#^(https?://|ftp://|data:)#i', $url ) ) { | |
| 606 | - // URL is protocol-relative, host-relative or something we don't touch | |
| 607 | - continue; | |
| 608 | - } else { | |
| 609 | - // Relative URL | |
| 610 | - $newurl = preg_replace( '/https?:/', '', str_replace( ' ', '%20', AUTOPTIMIZE_WP_ROOT_URL . str_replace( '//', '/', $dir . '/' . $url ) ) ); | |
| 611 | - | |
| 612 | - // Hash the url + whatever was behind potentially for replacement | |
| 613 | - // We must do this, or different css classes referencing the same bg image (but | |
| 614 | - // different parts of it, say, in sprites and such) loose their stuff... | |
| 615 | - $hash = md5( $url . $matches[2][$k] ); | |
| 616 | - $code = str_replace( $matches[0][$k], $hash, $code ); | |
| 617 | - | |
| 618 | - if ( $removedQuotes ) { | |
| 619 | - $replace[$hash] = "url('" . $newurl . "')" . $matches[2][$k]; | |
| 620 | - } else { | |
| 621 | - $replace[$hash] = 'url(' . $newurl . ')' . $matches[2][$k]; | |
| 622 | - } | |
| 623 | - } | |
| 624 | - } | |
| 625 | - | |
| 626 | - if ( ! empty( $replace ) ) { | |
| 627 | - // Sort the replacements array by key length in desc order (so that the longest strings are replaced first) | |
| 628 | - $keys = array_map( 'strlen', array_keys( $replace ) ); | |
| 629 | - array_multisort( $keys, SORT_DESC, $replace ); | |
| 630 | - | |
| 631 | - // Replace URLs found within $code | |
| 632 | - $code = str_replace( array_keys( $replace ), array_values( $replace ), $code ); | |
| 633 | - } | |
| 634 | - } | |
| 635 | - | |
| 636 | - return $code; | |
| 637 | - } | |
| 638 | - | |
| 639 | - private function ismovable($tag) { | |
| 640 | - if ( apply_filters('autoptimize_filter_css_dontaggregate', false) ) { | |
| 641 | - return false; | |
| 642 | - } else if (!empty($this->whitelist)) { | |
| 643 | - foreach ($this->whitelist as $match) { | |
| 644 | - if(strpos($tag,$match)!==false) { | |
| 645 | - return true; | |
| 646 | - } | |
| 647 | - } | |
| 648 | - // no match with whitelist | |
| 649 | - return false; | |
| 650 | - } else { | |
| 651 | - if (is_array($this->dontmove)) { | |
| 652 | - foreach($this->dontmove as $match) { | |
| 653 | - if(strpos($tag,$match)!==false) { | |
| 654 | - //Matched something | |
| 655 | - return false; | |
| 656 | - } | |
| 657 | - } | |
| 658 | - } | |
| 659 | - | |
| 660 | - //If we're here it's safe to move | |
| 661 | - return true; | |
| 662 | - } | |
| 663 | - } | |
| 664 | - | |
| 665 | - private function can_inject_late($cssPath,$css) { | |
| 666 | - $consider_minified_array = apply_filters('autoptimize_filter_css_consider_minified', false, $cssPath); | |
| 667 | - if ( $this->inject_min_late !== true ) { | |
| 668 | - // late-inject turned off | |
| 669 | - return false; | |
| 670 | - } else if ( (strpos($cssPath,"min.css") === false) && ( str_replace($consider_minified_array, '', $cssPath) === $cssPath ) ) { | |
| 671 | - // file not minified based on filename & filter | |
| 672 | - return false; | |
| 673 | - } else if ( strpos($css,"@import") !== false ) { | |
| 674 | - // can't late-inject files with imports as those need to be aggregated | |
| 675 | - return false; | |
| 676 | - } else if ( (strpos($css,"@font-face")!==false ) && ( apply_filters("autoptimize_filter_css_fonts_cdn",false)===true) && (!empty($this->cdn_url)) ) { | |
| 677 | - // don't late-inject CSS with font-src's if fonts are set to be CDN'ed | |
| 678 | - return false; | |
| 679 | - } else if ( (($this->datauris == true) || (!empty($this->cdn_url))) && preg_match("#background[^;}]*url\(#Ui",$css) ) { | |
| 680 | - // don't late-inject CSS with images if CDN is set OR is image inlining is on | |
| 681 | - return false; | |
| 682 | - } else { | |
| 683 | - // phew, all is safe, we can late-inject | |
| 684 | - return true; | |
| 685 | - } | |
| 686 | - } | |
| 687 | - | |
| 688 | - private function maybe_cdn_urls($inUrl) { | |
| 689 | - $url = trim($inUrl," \t\n\r\0\x0B\"'"); | |
| 690 | - $urlPath = parse_url($url,PHP_URL_PATH); | |
| 691 | - | |
| 692 | - // exclude fonts from CDN except if filter returns true | |
| 693 | - if ( !preg_match('#\.(woff2?|eot|ttf|otf)$#i',$urlPath) || apply_filters('autoptimize_filter_css_fonts_cdn',false) ) { | |
| 694 | - $cdn_url = $this->url_replace_cdn($url); | |
| 695 | - } else { | |
| 696 | - $cdn_url = $url; | |
| 697 | - } | |
| 698 | - | |
| 699 | - return $cdn_url; | |
| 700 | - } | |
| 701 | -} | |
| 1 | +<?php | |
| 2 | +if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly | |
| 3 | + | |
| 4 | +class autoptimizeStyles extends autoptimizeBase { | |
| 5 | + private $css = array(); | |
| 6 | + private $csscode = array(); | |
| 7 | + private $url = array(); | |
| 8 | + private $restofcontent = ''; | |
| 9 | + private $mhtml = ''; | |
| 10 | + private $datauris = false; | |
| 11 | + private $hashmap = array(); | |
| 12 | + | |
| 13 | + //Reads the page and collects style tags | |
| 14 | + public function read($options) { | |
| 15 | + //Remove everything that's not the header | |
| 16 | + if($options['justhead'] == true) { | |
| 17 | + $content = explode('</head>',$this->content,2); | |
| 18 | + $this->content = $content[0].'</head>'; | |
| 19 | + $this->restofcontent = $content[1]; | |
| 20 | + } | |
| 21 | + | |
| 22 | + // what CSS shouldn't be autoptimized | |
| 23 | + $excludeCSS = $options['css_exclude']; | |
| 24 | + $excludeCSS = apply_filters( 'autoptimize_filter_css_exclude', $excludeCSS ); | |
| 25 | + if ($excludeCSS!=="") { | |
| 26 | + $this->dontmove = array_filter(array_map('trim',explode(",",$excludeCSS))); | |
| 27 | + } | |
| 28 | + | |
| 29 | + // should we defer css? | |
| 30 | + $this->defer = $options['defer']; | |
| 31 | + | |
| 32 | + // should we inline? | |
| 33 | + $this->inline = $options['inline']; | |
| 34 | + | |
| 35 | + // get cdn url | |
| 36 | + $this->cdn_url = $options['cdn_url']; | |
| 37 | + | |
| 38 | + // Store data: URIs setting for later use | |
| 39 | + $this->datauris = $options['datauris']; | |
| 40 | + | |
| 41 | + // noptimize me | |
| 42 | + $this->content = $this->hide_noptimize($this->content); | |
| 43 | + | |
| 44 | + // exclude noscript, as those may contain CSS | |
| 45 | + if ( strpos( $this->content, '<noscript>' ) !== false ) { | |
| 46 | + $this->content = preg_replace_callback( | |
| 47 | + '#<noscript>.*?</noscript>#is', | |
| 48 | + create_function( | |
| 49 | + '$matches', | |
| 50 | + 'return "%%NOSCRIPT%%".base64_encode($matches[0])."%%NOSCRIPT%%";' | |
| 51 | + ), | |
| 52 | + $this->content | |
| 53 | + ); | |
| 54 | + } | |
| 55 | + | |
| 56 | + // Save IE hacks | |
| 57 | + $this->content = $this->hide_iehacks($this->content); | |
| 58 | + | |
| 59 | + // hide comments | |
| 60 | + $this->content = $this->hide_comments($this->content); | |
| 61 | + | |
| 62 | + // Get <style> and <link> | |
| 63 | + if(preg_match_all('#(<style[^>]*>.*</style>)|(<link[^>]*stylesheet[^>]*>)#Usmi',$this->content,$matches)) { | |
| 64 | + foreach($matches[0] as $tag) { | |
| 65 | + if ($this->ismovable($tag)) { | |
| 66 | + // Get the media | |
| 67 | + if(strpos($tag,'media=')!==false) { | |
| 68 | + preg_match('#media=(?:"|\')([^>]*)(?:"|\')#Ui',$tag,$medias); | |
| 69 | + $medias = explode(',',$medias[1]); | |
| 70 | + $media = array(); | |
| 71 | + foreach($medias as $elem) { | |
| 72 | + // $media[] = current(explode(' ',trim($elem),2)); | |
| 73 | + $media[] = $elem; | |
| 74 | + } | |
| 75 | + } else { | |
| 76 | + //No media specified - applies to all | |
| 77 | + $media = array('all'); | |
| 78 | + } | |
| 79 | + | |
| 80 | + if(preg_match('#<link.*href=("|\')(.*)("|\')#Usmi',$tag,$source)) { | |
| 81 | + //<link> | |
| 82 | + $url = current(explode('?',$source[2],2)); | |
| 83 | + $path = $this->getpath($url); | |
| 84 | + | |
| 85 | + if($path !==false && preg_match('#\.css$#',$path)) { | |
| 86 | + //Good link | |
| 87 | + $this->css[] = array($media,$path); | |
| 88 | + }else{ | |
| 89 | + //Link is dynamic (.php etc) | |
| 90 | + $tag = ''; | |
| 91 | + } | |
| 92 | + } else { | |
| 93 | + //<style> | |
| 94 | + preg_match('#<style.*>(.*)</style>#Usmi',$tag,$code); | |
| 95 | + $code = preg_replace('#^.*<!\[CDATA\[(?:\s*\*/)?(.*)(?://|/\*)\s*?\]\]>.*$#sm','$1',$code[1]); | |
| 96 | + $this->css[] = array($media,'INLINE;'.$code); | |
| 97 | + } | |
| 98 | + | |
| 99 | + //Remove the original style tag | |
| 100 | + $this->content = str_replace($tag,'',$this->content); | |
| 101 | + } | |
| 102 | + } | |
| 103 | + return true; | |
| 104 | + } | |
| 105 | + // Really, no styles? | |
| 106 | + return false; | |
| 107 | + } | |
| 108 | + | |
| 109 | + // Joins and optimizes CSS | |
| 110 | + public function minify() { | |
| 111 | + foreach($this->css as $group) { | |
| 112 | + list($media,$css) = $group; | |
| 113 | + if(preg_match('#^INLINE;#',$css)) { | |
| 114 | + //<style> | |
| 115 | + $css = preg_replace('#^INLINE;#','',$css); | |
| 116 | + $css = $this->fixurls(ABSPATH.'/index.php',$css); | |
| 117 | + } else { | |
| 118 | + //<link> | |
| 119 | + if($css !== false && file_exists($css) && is_readable($css)) { | |
| 120 | + $css = $this->fixurls($css,file_get_contents($css)); | |
| 121 | + $css = preg_replace('/\x{EF}\x{BB}\x{BF}/','',$css); | |
| 122 | + } else { | |
| 123 | + //Couldn't read CSS. Maybe getpath isn't working? | |
| 124 | + $css = ''; | |
| 125 | + } | |
| 126 | + } | |
| 127 | + | |
| 128 | + foreach($media as $elem) { | |
| 129 | + if(!isset($this->csscode[$elem])) | |
| 130 | + $this->csscode[$elem] = ''; | |
| 131 | + $this->csscode[$elem] .= "\n/*FILESTART*/".$css; | |
| 132 | + } | |
| 133 | + } | |
| 134 | + | |
| 135 | + // Check for duplicate code | |
| 136 | + $md5list = array(); | |
| 137 | + $tmpcss = $this->csscode; | |
| 138 | + foreach($tmpcss as $media => $code) { | |
| 139 | + $md5sum = md5($code); | |
| 140 | + $medianame = $media; | |
| 141 | + foreach($md5list as $med => $sum) { | |
| 142 | + //If same code | |
| 143 | + if($sum === $md5sum) { | |
| 144 | + //Add the merged code | |
| 145 | + $medianame = $med.', '.$media; | |
| 146 | + $this->csscode[$medianame] = $code; | |
| 147 | + $md5list[$medianame] = $md5list[$med]; | |
| 148 | + unset($this->csscode[$med], $this->csscode[$media]); | |
| 149 | + unset($md5list[$med]); | |
| 150 | + } | |
| 151 | + } | |
| 152 | + $md5list[$medianame] = $md5sum; | |
| 153 | + } | |
| 154 | + unset($tmpcss); | |
| 155 | + | |
| 156 | + //Manage @imports, while is for recursive import management | |
| 157 | + foreach($this->csscode as &$thiscss) { | |
| 158 | + // Flag to trigger import reconstitution and var to hold external imports | |
| 159 | + $fiximports = false; | |
| 160 | + $external_imports = ""; | |
| 161 | + | |
| 162 | + while(preg_match_all('#^(/*\s?)@import.*(?:;|$)#Um',$thiscss,$matches)) { | |
| 163 | + foreach($matches[0] as $import) { | |
| 164 | + $url = trim(preg_replace('#^.*((?:https?|ftp)://.*\.css).*$#','$1',trim($import))," \t\n\r\0\x0B\"'"); | |
| 165 | + $path = $this->getpath($url); | |
| 166 | + $import_ok = false; | |
| 167 | + if (file_exists($path) && is_readable($path)) { | |
| 168 | + $code = addcslashes($this->fixurls($path,file_get_contents($path)),"\\"); | |
| 169 | + $code = preg_replace('/\x{EF}\x{BB}\x{BF}/','',$code); | |
| 170 | + if(!empty($code)) { | |
| 171 | + $tmp_thiscss = preg_replace('#(/\*FILESTART\*/.*)'.preg_quote($import,'#').'#Us','/*FILESTART2*/'.$code.'$1',$thiscss); | |
| 172 | + if (!empty($tmp_thiscss)) { | |
| 173 | + $thiscss = $tmp_thiscss; | |
| 174 | + $import_ok = true; | |
| 175 | + unset($tmp_thiscss); | |
| 176 | + } | |
| 177 | + unset($code); | |
| 178 | + } | |
| 179 | + } | |
| 180 | + | |
| 181 | + if (!$import_ok) { | |
| 182 | + // external imports and general fall-back | |
| 183 | + $external_imports .= $import; | |
| 184 | + $thiscss = str_replace($import,'',$thiscss); | |
| 185 | + $fiximports = true; | |
| 186 | + } | |
| 187 | + } | |
| 188 | + $thiscss = preg_replace('#/\*FILESTART\*/#','',$thiscss); | |
| 189 | + $thiscss = preg_replace('#/\*FILESTART2\*/#','/*FILESTART*/',$thiscss); | |
| 190 | + } | |
| 191 | + | |
| 192 | + // add external imports to top of aggregated CSS | |
| 193 | + if($fiximports) { | |
| 194 | + $thiscss=$external_imports.$thiscss; | |
| 195 | + } | |
| 196 | + } | |
| 197 | + unset($thiscss); | |
| 198 | + | |
| 199 | + // $this->csscode has all the uncompressed code now. | |
| 200 | + $mhtmlcount = 0; | |
| 201 | + foreach($this->csscode as &$code) { | |
| 202 | + // Check for already-minified code | |
| 203 | + $hash = md5($code); | |
| 204 | + $ccheck = new autoptimizeCache($hash,'css'); | |
| 205 | + if($ccheck->check()) { | |
| 206 | + $code = $ccheck->retrieve(); | |
| 207 | + $this->hashmap[md5($code)] = $hash; | |
| 208 | + continue; | |
| 209 | + } | |
| 210 | + unset($ccheck); | |
| 211 | + //Do the imaging! | |
| 212 | + $imgreplace = array(); | |
| 213 | + preg_match_all('#(background[^;}]*url\((?!data)(.*)\)[^;}]*)(?:;|$|})#Usm',$code,$matches); | |
| 214 | + | |
| 215 | + if(($this->datauris == true) && (function_exists('base64_encode')) && (is_array($matches))) { | |
| 216 | + foreach($matches[2] as $count => $quotedurl) { | |
| 217 | + $url = trim($quotedurl," \t\n\r\0\x0B\"'"); | |
| 218 | + | |
| 219 | + // if querystring, remove it from url | |
| 220 | + if (strpos($url,'?') !== false) { $url = reset(explode('?',$url)); } | |
| 221 | + | |
| 222 | + $path = $this->getpath($url); | |
| 223 | + | |
| 224 | + $datauri_max_size = 2560; | |
| 225 | + $datauri_max_size = (int) apply_filters( 'autoptimize_filter_css_datauri_maxsize', $datauri_max_size ); | |
| 226 | + | |
| 227 | + if($path != false && preg_match('#\.(jpe?g|png|gif|bmp)$#',$path) && file_exists($path) && is_readable($path) && filesize($path) <= $datauri_max_size) { | |
| 228 | + //It's an image, get the type | |
| 229 | + $type=end(explode('.',$path)); | |
| 230 | + switch($type) { | |
| 231 | + case 'jpeg': | |
| 232 | + $dataurihead = 'data:image/jpeg;base64,'; | |
| 233 | + break; | |
| 234 | + case 'jpg': | |
| 235 | + $dataurihead = 'data:image/jpeg;base64,'; | |
| 236 | + break; | |
| 237 | + case 'gif': | |
| 238 | + $dataurihead = 'data:image/gif;base64,'; | |
| 239 | + break; | |
| 240 | + case 'png': | |
| 241 | + $dataurihead = 'data:image/png;base64,'; | |
| 242 | + break; | |
| 243 | + case 'bmp': | |
| 244 | + $dataurihead = 'data:image/bmp;base64,'; | |
| 245 | + break; | |
| 246 | + default: | |
| 247 | + $dataurihead = 'data:application/octet-stream;base64,'; | |
| 248 | + } | |
| 249 | + | |
| 250 | + //Encode the data | |
| 251 | + $base64data = base64_encode(file_get_contents($path)); | |
| 252 | + | |
| 253 | + //Add it to the list for replacement | |
| 254 | + $imgreplace[$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].';'; | |
| 255 | + | |
| 256 | + //Store image on the mhtml document | |
| 257 | + $this->mhtml .= "--_\r\nContent-Location:{$mhtmlcount}\r\nContent-Transfer-Encoding:base64\r\n\r\n{$base64data}\r\n"; | |
| 258 | + $mhtmlcount++; | |
| 259 | + } | |
| 260 | + } | |
| 261 | + } else if ((is_array($matches)) && (!empty($this->cdn_url))) { | |
| 262 | + // change background image urls to cdn-url | |
| 263 | + foreach($matches[2] as $count => $quotedurl) { | |
| 264 | + $url = trim($quotedurl," \t\n\r\0\x0B\"'"); | |
| 265 | + $cdn_url=$this->url_replace_cdn($url); | |
| 266 | + $imgreplace[$matches[1][$count]] = str_replace($quotedurl,$cdn_url,$matches[1][$count]); | |
| 267 | + } | |
| 268 | + } | |
| 269 | + | |
| 270 | + if(!empty($imgreplace)) { | |
| 271 | + $code = str_replace(array_keys($imgreplace),array_values($imgreplace),$code); | |
| 272 | + } | |
| 273 | + | |
| 274 | + //Minify | |
| 275 | + if (class_exists('Minify_CSS_Compressor')) { | |
| 276 | + $tmp_code = trim(Minify_CSS_Compressor::process($code)); | |
| 277 | + } else if(class_exists('CSSmin')) { | |
| 278 | + $cssmin = new CSSmin(); | |
| 279 | + if (method_exists($cssmin,"run")) { | |
| 280 | + $tmp_code = trim($cssmin->run($code)); | |
| 281 | + } elseif (is_callable(array($cssmin,"minify"))) { | |
| 282 | + $tmp_code = trim(CssMin::minify($code)); | |
| 283 | + } | |
| 284 | + } | |
| 285 | + | |
| 286 | + if (!empty($tmp_code)) { | |
| 287 | + $code = $tmp_code; | |
| 288 | + unset($tmp_code); | |
| 289 | + } | |
| 290 | + | |
| 291 | + $this->hashmap[md5($code)] = $hash; | |
| 292 | + } | |
| 293 | + unset($code); | |
| 294 | + return true; | |
| 295 | + } | |
| 296 | + | |
| 297 | + //Caches the CSS in uncompressed, deflated and gzipped form. | |
| 298 | + public function cache() { | |
| 299 | + if($this->datauris) { | |
| 300 | + // MHTML Preparation | |
| 301 | + $this->mhtml = "/*\r\nContent-Type: multipart/related; boundary=\"_\"\r\n\r\n".$this->mhtml."*/\r\n"; | |
| 302 | + $md5 = md5($this->mhtml); | |
| 303 | + $cache = new autoptimizeCache($md5,'txt'); | |
| 304 | + if(!$cache->check()) { | |
| 305 | + //Cache our images for IE | |
| 306 | + $cache->cache($this->mhtml,'text/plain'); | |
| 307 | + } | |
| 308 | + $mhtml = AUTOPTIMIZE_CACHE_URL.$cache->getname(); | |
| 309 | + } | |
| 310 | + | |
| 311 | + //CSS cache | |
| 312 | + foreach($this->csscode as $media => $code) { | |
| 313 | + $md5 = $this->hashmap[md5($code)]; | |
| 314 | + | |
| 315 | + if($this->datauris) { | |
| 316 | + // Images for ie! Get the right url | |
| 317 | + $code = str_replace('%%MHTML%%',$mhtml,$code); | |
| 318 | + } | |
| 319 | + | |
| 320 | + $cache = new autoptimizeCache($md5,'css'); | |
| 321 | + if(!$cache->check()) { | |
| 322 | + // Cache our code | |
| 323 | + $cache->cache($code,'text/css'); | |
| 324 | + } | |
| 325 | + $this->url[$media] = AUTOPTIMIZE_CACHE_URL.$cache->getname(); | |
| 326 | + } | |
| 327 | + } | |
| 328 | + | |
| 329 | + //Returns the content | |
| 330 | + public function getcontent() { | |
| 331 | + // restore IE hacks | |
| 332 | + $this->content = $this->restore_iehacks($this->content); | |
| 333 | + | |
| 334 | + // restore comments | |
| 335 | + $this->content = $this->restore_comments($this->content); | |
| 336 | + | |
| 337 | + // restore noscript | |
| 338 | + if ( strpos( $this->content, '%%NOSCRIPT%%' ) !== false ) { | |
| 339 | + $this->content = preg_replace_callback( | |
| 340 | + '#%%NOSCRIPT%%(.*?)%%NOSCRIPT%%#is', | |
| 341 | + create_function( | |
| 342 | + '$matches', | |
| 343 | + 'return stripslashes(base64_decode($matches[1]));' | |
| 344 | + ), | |
| 345 | + $this->content | |
| 346 | + ); | |
| 347 | + } | |
| 348 | + | |
| 349 | + // restore noptimize | |
| 350 | + $this->content = $this->restore_noptimize($this->content); | |
| 351 | + | |
| 352 | + //Restore the full content | |
| 353 | + if(!empty($this->restofcontent)) { | |
| 354 | + $this->content .= $this->restofcontent; | |
| 355 | + $this->restofcontent = ''; | |
| 356 | + } | |
| 357 | + | |
| 358 | + $warn_html_template=false; | |
| 359 | + | |
| 360 | + //Add the new stylesheets | |
| 361 | + if ($this->inline == true) { | |
| 362 | + foreach($this->csscode as $media => $code) { | |
| 363 | + if (strpos($this->content,"<title")!==false) { | |
| 364 | + $this->content = str_replace('<title','<style type="text/css" media="'.$media.'">'.$code.'</style><title',$this->content); | |
| 365 | + } else { | |
| 366 | + $warn_html_template=true; | |
| 367 | + $this->content .= '<style type="text/css" media="'.$media.'">'.$code.'</style>'; | |
| 368 | + } | |
| 369 | + } | |
| 370 | + } else { | |
| 371 | + if($this->defer == true) { | |
| 372 | + $deferredCssBlock = "<script>function lCss(url,media) {var d=document;var l=d.createElement('link');l.rel='stylesheet';l.type='text/css';l.href=url;l.media=media; d.getElementsByTagName('head')[0].appendChild(l);}function deferredCSS() {"; | |
| 373 | + $noScriptCssBlock = "<noscript>"; | |
| 374 | + } | |
| 375 | + | |
| 376 | + foreach($this->url as $media => $url) { | |
| 377 | + $url = $this->url_replace_cdn($url); | |
| 378 | + | |
| 379 | + //Add the stylesheet either deferred (import at bottom) or normal links in head | |
| 380 | + if($this->defer == true) { | |
| 381 | + $deferredCssBlock .= "lCss('".$url."','".$media."');"; | |
| 382 | + $noScriptCssBlock .= '<link type="text/css" media="'.$media.'" href="'.$url.'" rel="stylesheet" />'; | |
| 383 | + } else { | |
| 384 | + if (strpos($this->content,"<title")!==false) { | |
| 385 | + $this->content = str_replace('<title','<link type="text/css" media="'.$media.'" href="'.$url.'" rel="stylesheet" /><title',$this->content); | |
| 386 | + } else { | |
| 387 | + $warn_html_template=true; | |
| 388 | + $this->content .= '<link type="text/css" media="'.$media.'" href="'.$url.'" rel="stylesheet" />'; | |
| 389 | + } | |
| 390 | + } | |
| 391 | + } | |
| 392 | + | |
| 393 | + if($this->defer == true) { | |
| 394 | + $deferredCssBlock .= "}if(window.addEventListener){window.addEventListener('DOMContentLoaded',deferredCSS,false);}else{window.onload = deferredCSS;}</script>"; | |
| 395 | + $noScriptCssBlock .= "</noscript>"; | |
| 396 | + if (strpos($this->content,"<title")!==false) { | |
| 397 | + $this->content = str_replace('<title',$noScriptCssBlock.'<title',$this->content); | |
| 398 | + } else { | |
| 399 | + $warn_html_template=true; | |
| 400 | + $this->content .= $noScriptCssBlock; | |
| 401 | + } | |
| 402 | + if (strpos($this->content,"</body>")!==false) { | |
| 403 | + $this->content = str_replace('</body>',$deferredCssBlock.'</body>',$this->content); | |
| 404 | + } else { | |
| 405 | + $warn_html_template=true; | |
| 406 | + $this->content .= $deferredCssBlock; | |
| 407 | + } | |
| 408 | + } | |
| 409 | + } | |
| 410 | + | |
| 411 | + if ($warn_html_template) { | |
| 412 | + $this->warn_html(); | |
| 413 | + } | |
| 414 | + | |
| 415 | + //Return the modified stylesheet | |
| 416 | + return $this->content; | |
| 417 | + } | |
| 418 | + | |
| 419 | + private function fixurls($file,$code) { | |
| 420 | + // $file = str_replace(ABSPATH,'/',$file); //Sth like /wp-content/file.css | |
| 421 | + $file = str_replace(WP_ROOT_DIR,'/',$file); | |
| 422 | + $dir = dirname($file); //Like /wp-content | |
| 423 | + | |
| 424 | + // quick fix for import-troubles in e.g. arras theme | |
| 425 | + $code=preg_replace('#@import ("|\')(.+?)\.css("|\')#','@import url("${2}.css")',$code); | |
| 426 | + | |
| 427 | + if(preg_match_all('#url\((?!data)(.*)\)#Usi',$code,$matches)) | |
| 428 | + { | |
| 429 | + $replace = array(); | |
| 430 | + foreach($matches[1] as $k => $url) | |
| 431 | + { | |
| 432 | + //Remove quotes | |
| 433 | + $url = trim($url," \t\n\r\0\x0B\"'"); | |
| 434 | + if(substr($url,0,1)=='/' || preg_match('#^(https?://|ftp://|data:)#i',$url)) | |
| 435 | + { | |
| 436 | + //URL is absolute | |
| 437 | + continue; | |
| 438 | + }else{ | |
| 439 | + // relative URL | |
| 440 | + $newurl = AUTOPTIMIZE_WP_ROOT_URL.str_replace('//','/',$dir.'/'.$url); | |
| 441 | + $hash = md5($url); | |
| 442 | + $code = str_replace($matches[0][$k],$hash,$code); | |
| 443 | + $replace[$hash] = 'url('.$newurl.')'; | |
| 444 | + } | |
| 445 | + } | |
| 446 | + | |
| 447 | + //Do the replacing here to avoid breaking URLs | |
| 448 | + $code = str_replace(array_keys($replace),array_values($replace),$code); | |
| 449 | + } | |
| 450 | + | |
| 451 | + return $code; | |
| 452 | + } | |
| 453 | + | |
| 454 | + private function ismovable($tag) { | |
| 455 | + if (is_array($this->dontmove)) { | |
| 456 | + foreach($this->dontmove as $match) { | |
| 457 | + if(strpos($tag,$match)!==false) { | |
| 458 | + //Matched something | |
| 459 | + return false; | |
| 460 | + } | |
| 461 | + } | |
| 462 | + } | |
| 463 | + | |
| 464 | + //If we're here it's safe to move | |
| 465 | + return true; | |
| 466 | + } | |
| 467 | + | |
| 468 | +} | |
