| @@ -1,767 +1,158 @@ | ||
| 1 | 1 | <?php |
| 2 | -/** | |
| 3 | - * Class for JS optimization. | |
| 4 | - */ | |
| 5 | 2 | |
| 6 | -if ( ! defined( 'ABSPATH' ) ) { | |
| 7 | - exit; | |
| 8 | -} | |
| 9 | - | |
| 10 | 3 | class autoptimizeScripts extends autoptimizeBase |
| 11 | 4 | { |
| 12 | - | |
| 13 | - /** | |
| 14 | - * Stores founds scripts. | |
| 15 | - * | |
| 16 | - * @var array | |
| 17 | - */ | |
| 18 | - private $scripts = array(); | |
| 19 | - | |
| 20 | - /** | |
| 21 | - * Stores to be moved JS. | |
| 22 | - * | |
| 23 | - * @var array | |
| 24 | - */ | |
| 25 | - private $move = array( | |
| 26 | - 'first' => array(), | |
| 27 | - 'last' => array(), | |
| 28 | - ); | |
| 29 | - | |
| 30 | - /** | |
| 31 | - * List of not to be moved JS. | |
| 32 | - * | |
| 33 | - * @var array | |
| 34 | - */ | |
| 35 | - private $dontmove = array( | |
| 36 | - 'document.write', | |
| 37 | - 'html5.js', | |
| 38 | - 'show_ads.js', | |
| 39 | - 'google_ad', | |
| 40 | - 'histats.com/js', | |
| 41 | - 'statcounter.com/counter/counter.js', | |
| 42 | - 'ws.amazon.com/widgets', | |
| 43 | - 'media.fastclick.net', | |
| 44 | - '/ads/', | |
| 45 | - 'comment-form-quicktags/quicktags.php', | |
| 46 | - 'edToolbar', | |
| 47 | - 'intensedebate.com', | |
| 48 | - 'scripts.chitika.net/', | |
| 49 | - '_gaq.push', | |
| 50 | - 'jotform.com/', | |
| 51 | - 'admin-bar.min.js', | |
| 52 | - 'GoogleAnalyticsObject', | |
| 53 | - 'plupload.full.min.js', | |
| 54 | - 'syntaxhighlighter', | |
| 55 | - 'adsbygoogle', | |
| 56 | - 'gist.github.com', | |
| 57 | - '_stq', | |
| 58 | - 'nonce', | |
| 59 | - 'post_id', | |
| 60 | - 'data-noptimize', | |
| 61 | - 'logHuman', | |
| 62 | - ); | |
| 63 | - | |
| 64 | - /** | |
| 65 | - * List of to be moved JS. | |
| 66 | - * | |
| 67 | - * @var array | |
| 68 | - */ | |
| 69 | - private $domove = array( | |
| 70 | - 'gaJsHost', | |
| 71 | - 'load_cmc', | |
| 72 | - 'jd.gallery.transitions.js', | |
| 73 | - 'swfobject.embedSWF(', | |
| 74 | - 'tiny_mce.js', | |
| 75 | - 'tinyMCEPreInit.go', | |
| 76 | - ); | |
| 77 | - | |
| 78 | - /** | |
| 79 | - * List of JS that can be moved last (not used any more). | |
| 80 | - * | |
| 81 | - * @var array | |
| 82 | - */ | |
| 83 | - private $domovelast = array( | |
| 84 | - 'addthis.com', | |
| 85 | - '/afsonline/show_afs_search.js', | |
| 86 | - 'disqus.js', | |
| 87 | - 'networkedblogs.com/getnetworkwidget', | |
| 88 | - 'infolinks.com/js/', | |
| 89 | - 'jd.gallery.js.php', | |
| 90 | - 'jd.gallery.transitions.js', | |
| 91 | - 'swfobject.embedSWF(', | |
| 92 | - 'linkwithin.com/widget.js', | |
| 93 | - 'tiny_mce.js', | |
| 94 | - 'tinyMCEPreInit.go', | |
| 95 | - ); | |
| 96 | - | |
| 97 | - /** | |
| 98 | - * Setting CDN base URL. | |
| 99 | - * | |
| 100 | - * @var string | |
| 101 | - */ | |
| 102 | - public $cdn_url = ''; | |
| 103 | - | |
| 104 | - /** | |
| 105 | - * Setting; aggregate or not. | |
| 106 | - * | |
| 107 | - * @var bool | |
| 108 | - */ | |
| 109 | - private $aggregate = true; | |
| 110 | - | |
| 111 | - /** | |
| 112 | - * Setting; try/catch wrapping or not. | |
| 113 | - * | |
| 114 | - * @var bool | |
| 115 | - */ | |
| 116 | - private $trycatch = false; | |
| 117 | - | |
| 118 | - /** | |
| 119 | - * State; is JS already minified. | |
| 120 | - * | |
| 121 | - * @var bool | |
| 122 | - */ | |
| 123 | - private $alreadyminified = false; | |
| 124 | - | |
| 125 | - /** | |
| 126 | - * Setting; force JS in head or not. | |
| 127 | - * | |
| 128 | - * @var bool | |
| 129 | - */ | |
| 130 | - private $forcehead = true; | |
| 131 | - | |
| 132 | - /** | |
| 133 | - * Setting; aggregate inline JS or not. | |
| 134 | - * | |
| 135 | - * @var bool | |
| 136 | - */ | |
| 137 | - private $include_inline = false; | |
| 138 | - | |
| 139 | - /** | |
| 140 | - * State; holds JS code. | |
| 141 | - * | |
| 142 | - * @var string | |
| 143 | - */ | |
| 144 | - private $jscode = ''; | |
| 145 | - | |
| 146 | - /** | |
| 147 | - * State; holds URL of JS-file. | |
| 148 | - * | |
| 149 | - * @var string | |
| 150 | - */ | |
| 151 | - private $url = ''; | |
| 152 | - | |
| 153 | - /** | |
| 154 | - * State; stores rest of HTML if (old) option "only in head" is on. | |
| 155 | - * | |
| 156 | - * @var string | |
| 157 | - */ | |
| 158 | - private $restofcontent = ''; | |
| 159 | - | |
| 160 | - /** | |
| 161 | - * State; holds md5-hash. | |
| 162 | - * | |
| 163 | - * @var string | |
| 164 | - */ | |
| 165 | - private $md5hash = ''; | |
| 166 | - | |
| 167 | - /** | |
| 168 | - * Setting (filter); whitelist of to be aggregated JS. | |
| 169 | - * | |
| 170 | - * @var string | |
| 171 | - */ | |
| 172 | - private $whitelist = ''; | |
| 173 | - | |
| 174 | - /** | |
| 175 | - * Setting (filter); holds JS that should be removed. | |
| 176 | - * | |
| 177 | - * @var array | |
| 178 | - */ | |
| 179 | - private $jsremovables = array(); | |
| 180 | - | |
| 181 | - /** | |
| 182 | - * Setting (filter); can we inject already minified files after the | |
| 183 | - * unminified aggregate JS has been minified. | |
| 184 | - * | |
| 185 | - * @var bool | |
| 186 | - */ | |
| 187 | - private $inject_min_late = true; | |
| 188 | - | |
| 189 | - /** | |
| 190 | - * Setting; should excluded JS be minified (if not already). | |
| 191 | - * | |
| 192 | - * @var bool | |
| 193 | - */ | |
| 194 | - private $minify_excluded = true; | |
| 195 | - | |
| 196 | - /** | |
| 197 | - * Reads the page and collects script tags. | |
| 198 | - * | |
| 199 | - * @param array $options all options. | |
| 200 | - */ | |
| 201 | - public function read( $options ) | |
| 202 | - { | |
| 203 | - $noptimize_js = apply_filters( 'autoptimize_filter_js_noptimize', false, $this->content ); | |
| 204 | - if ( $noptimize_js ) { | |
| 205 | - return false; | |
| 206 | - } | |
| 207 | - | |
| 208 | - // only optimize known good JS? | |
| 209 | - $whitelist_js = apply_filters( 'autoptimize_filter_js_whitelist', '', $this->content ); | |
| 210 | - if ( ! empty( $whitelist_js ) ) { | |
| 211 | - $this->whitelist = array_filter( array_map( 'trim', explode( ', ', $whitelist_js ) ) ); | |
| 212 | - } | |
| 213 | - | |
| 214 | - // is there JS we should simply remove? | |
| 215 | - $removable_js = apply_filters( 'autoptimize_filter_js_removables', '', $this->content ); | |
| 216 | - if ( ! empty( $removable_js ) ) { | |
| 217 | - $this->jsremovables = array_filter( array_map( 'trim', explode( ', ', $removable_js ) ) ); | |
| 218 | - } | |
| 219 | - | |
| 220 | - // only header? | |
| 221 | - if ( apply_filters( 'autoptimize_filter_js_justhead', $options['justhead'] ) ) { | |
| 222 | - $content = explode( '</head>', $this->content, 2 ); | |
| 223 | - $this->content = $content[0] . '</head>'; | |
| 224 | - $this->restofcontent = $content[1]; | |
| 225 | - } | |
| 226 | - | |
| 227 | - // Determine whether we're doing JS-files aggregation or not. | |
| 228 | - if ( ! $options['aggregate'] ) { | |
| 229 | - $this->aggregate = false; | |
| 230 | - } | |
| 231 | - // Returning true for "dontaggregate" turns off aggregation. | |
| 232 | - if ( $this->aggregate && apply_filters( 'autoptimize_filter_js_dontaggregate', false ) ) { | |
| 233 | - $this->aggregate = false; | |
| 234 | - } | |
| 235 | - | |
| 236 | - // include inline? | |
| 237 | - if ( apply_filters( 'autoptimize_js_include_inline', $options['include_inline'] ) ) { | |
| 238 | - $this->include_inline = true; | |
| 239 | - } | |
| 240 | - | |
| 241 | - // filter to "late inject minified JS", default to true for now (it is faster). | |
| 242 | - $this->inject_min_late = apply_filters( 'autoptimize_filter_js_inject_min_late', true ); | |
| 243 | - | |
| 244 | - // filters to override hardcoded do(nt)move(last) array contents (array in, array out!). | |
| 245 | - $this->dontmove = apply_filters( 'autoptimize_filter_js_dontmove', $this->dontmove ); | |
| 246 | - $this->domovelast = apply_filters( 'autoptimize_filter_js_movelast', $this->domovelast ); | |
| 247 | - $this->domove = apply_filters( 'autoptimize_filter_js_domove', $this->domove ); | |
| 248 | - | |
| 249 | - // Determine whether excluded files should be minified if not yet so. | |
| 250 | - if ( ! $options['minify_excluded'] && $options['aggregate'] ) { | |
| 251 | - $this->minify_excluded = false; | |
| 252 | - } | |
| 253 | - $this->minify_excluded = apply_filters( 'autoptimize_filter_js_minify_excluded', $this->minify_excluded, '' ); | |
| 254 | - | |
| 255 | - // get extra exclusions settings or filter. | |
| 256 | - $exclude_js = $options['js_exclude']; | |
| 257 | - $exclude_js = apply_filters( 'autoptimize_filter_js_exclude', $exclude_js, $this->content ); | |
| 258 | - | |
| 259 | - if ( '' !== $exclude_js ) { | |
| 260 | - if ( is_array( $exclude_js ) ) { | |
| 261 | - $remove_keys = array_keys( $exclude_js, 'remove' ); | |
| 262 | - if ( false !== $remove_keys ) { | |
| 263 | - foreach ( $remove_keys as $remove_key ) { | |
| 264 | - unset( $exclude_js[ $remove_key ] ); | |
| 265 | - $this->jsremovables[] = $remove_key; | |
| 266 | - } | |
| 267 | - } | |
| 268 | - $excl_js_arr = array_keys( $exclude_js ); | |
| 269 | - } else { | |
| 270 | - $excl_js_arr = array_filter( array_map( 'trim', explode( ', ', $exclude_js ) ) ); | |
| 271 | - } | |
| 272 | - $this->dontmove = array_merge( $excl_js_arr, $this->dontmove ); | |
| 273 | - } | |
| 274 | - | |
| 275 | - // Should we add try-catch? | |
| 276 | - if ( $options['trycatch'] ) { | |
| 277 | - $this->trycatch = true; | |
| 278 | - } | |
| 279 | - | |
| 280 | - // force js in head? | |
| 281 | - if ( $options['forcehead'] ) { | |
| 282 | - $this->forcehead = true; | |
| 283 | - } else { | |
| 284 | - $this->forcehead = false; | |
| 285 | - } | |
| 286 | - | |
| 287 | - $this->forcehead = apply_filters( 'autoptimize_filter_js_forcehead', $this->forcehead ); | |
| 288 | - | |
| 289 | - // get cdn url. | |
| 290 | - $this->cdn_url = $options['cdn_url']; | |
| 291 | - | |
| 292 | - // noptimize me. | |
| 293 | - $this->content = $this->hide_noptimize( $this->content ); | |
| 294 | - | |
| 295 | - // Save IE hacks. | |
| 296 | - $this->content = $this->hide_iehacks( $this->content ); | |
| 297 | - | |
| 298 | - // comments. | |
| 299 | - $this->content = $this->hide_comments( $this->content ); | |
| 300 | - | |
| 301 | - // Get script files. | |
| 302 | - if ( preg_match_all( '#<script.*</script>#Usmi', $this->content, $matches ) ) { | |
| 303 | - foreach ( $matches[0] as $tag ) { | |
| 304 | - // only consider script aggregation for types whitelisted in should_aggregate-function. | |
| 305 | - $should_aggregate = $this->should_aggregate( $tag ); | |
| 306 | - if ( ! $should_aggregate ) { | |
| 307 | - $tag = ''; | |
| 308 | - continue; | |
| 309 | - } | |
| 310 | - | |
| 311 | - if ( preg_match( '#<script[^>]*src=("|\')([^>]*)("|\')#Usmi', $tag, $source ) ) { | |
| 312 | - // non-inline script. | |
| 313 | - if ( $this->isremovable( $tag, $this->jsremovables ) ) { | |
| 314 | - $this->content = str_replace( $tag, '', $this->content ); | |
| 315 | - continue; | |
| 316 | - } | |
| 317 | - | |
| 318 | - $orig_tag = null; | |
| 319 | - $url = current( explode( '?', $source[2], 2 ) ); | |
| 320 | - $path = $this->getpath( $url ); | |
| 321 | - if ( false !== $path && preg_match( '#\.js$#', $path ) && $this->ismergeable( $tag ) ) { | |
| 322 | - // ok to optimize, add to array. | |
| 323 | - $this->scripts[] = $path; | |
| 324 | - } else { | |
| 325 | - $orig_tag = $tag; | |
| 326 | - $new_tag = $tag; | |
| 327 | - | |
| 328 | - // non-mergeable script (excluded or dynamic or external). | |
| 329 | - if ( is_array( $exclude_js ) ) { | |
| 330 | - // should we add flags? | |
| 331 | - foreach ( $exclude_js as $excl_tag => $excl_flags ) { | |
| 332 | - if ( false !== strpos( $orig_tag, $excl_tag ) && in_array( $excl_flags, array( 'async', 'defer' ) ) ) { | |
| 333 | - $new_tag = str_replace( '<script ', '<script ' . $excl_flags . ' ', $new_tag ); | |
| 334 | - } | |
| 335 | - } | |
| 336 | - } | |
| 337 | - | |
| 338 | - // Should we minify the non-aggregated script? | |
| 339 | - // -> if aggregate is on and exclude minify is on | |
| 340 | - // -> if aggregate is off and the file is not in dontmove. | |
| 341 | - if ( $path && $this->minify_excluded ) { | |
| 342 | - $consider_minified_array = apply_filters( 'autoptimize_filter_js_consider_minified', false ); | |
| 343 | - if ( ( false === $this->aggregate && str_replace( $this->dontmove, '', $path ) === $path ) || ( true === $this->aggregate && ( false === $consider_minified_array || str_replace( $consider_minified_array, '', $path ) === $path ) ) ) { | |
| 344 | - $minified_url = $this->minify_single( $path ); | |
| 345 | - if ( ! empty( $minified_url ) ) { | |
| 346 | - // Replace original URL with minified URL from cache. | |
| 347 | - $new_tag = str_replace( $url, $minified_url, $new_tag ); | |
| 348 | - } else { | |
| 349 | - // Remove the original script tag, because cache content is empty. | |
| 350 | - $new_tag = ''; | |
| 351 | - } | |
| 352 | - } | |
| 353 | - } | |
| 354 | - | |
| 355 | - if ( $this->ismovable( $new_tag ) ) { | |
| 356 | - // can be moved, flags and all. | |
| 357 | - if ( $this->movetolast( $new_tag ) ) { | |
| 358 | - $this->move['last'][] = $new_tag; | |
| 359 | - } else { | |
| 360 | - $this->move['first'][] = $new_tag; | |
| 361 | - } | |
| 362 | - } else { | |
| 363 | - // cannot be moved, so if flag was added re-inject altered tag immediately. | |
| 364 | - if ( ( '' !== $new_tag && $orig_tag !== $new_tag ) || ( '' === $new_tag && apply_filters( 'autoptimize_filter_js_remove_empty_files', false ) ) ) { | |
| 365 | - $this->content = str_replace( $orig_tag, $new_tag, $this->content ); | |
| 366 | - $orig_tag = ''; | |
| 367 | - } | |
| 368 | - // and forget about the $tag (not to be touched any more). | |
| 369 | - $tag = ''; | |
| 370 | - } | |
| 371 | - } | |
| 372 | - } else { | |
| 373 | - // Inline script. | |
| 374 | - if ( $this->isremovable( $tag, $this->jsremovables ) ) { | |
| 375 | - $this->content = str_replace( $tag, '', $this->content ); | |
| 376 | - continue; | |
| 377 | - } | |
| 378 | - | |
| 379 | - // unhide comments, as javascript may be wrapped in comment-tags for old times' sake. | |
| 380 | - $tag = $this->restore_comments( $tag ); | |
| 381 | - if ( $this->ismergeable( $tag ) && $this->include_inline ) { | |
| 382 | - preg_match( '#<script.*>(.*)</script>#Usmi', $tag, $code ); | |
| 383 | - $code = preg_replace( '#.*<!\[CDATA\[(?:\s*\*/)?(.*)(?://|/\*)\s*?\]\]>.*#sm', '$1', $code[1] ); | |
| 384 | - $code = preg_replace( '/(?:^\\s*<!--\\s*|\\s*(?:\\/\\/)?\\s*-->\\s*$)/', '', $code ); | |
| 385 | - $this->scripts[] = 'INLINE;' . $code; | |
| 386 | - } else { | |
| 387 | - // Can we move this? | |
| 388 | - $autoptimize_js_moveable = apply_filters( 'autoptimize_js_moveable', '', $tag ); | |
| 389 | - if ( $this->ismovable( $tag ) || '' !== $autoptimize_js_moveable ) { | |
| 390 | - if ( $this->movetolast( $tag ) || 'last' === $autoptimize_js_moveable ) { | |
| 391 | - $this->move['last'][] = $tag; | |
| 392 | - } else { | |
| 393 | - $this->move['first'][] = $tag; | |
| 394 | - } | |
| 395 | - } else { | |
| 396 | - // We shouldn't touch this. | |
| 397 | - $tag = ''; | |
| 398 | - } | |
| 399 | - } | |
| 400 | - // Re-hide comments to be able to do the removal based on tag from $this->content. | |
| 401 | - $tag = $this->hide_comments( $tag ); | |
| 402 | - } | |
| 403 | - | |
| 404 | - // Remove the original script tag. | |
| 405 | - $this->content = str_replace( $tag, '', $this->content ); | |
| 406 | - } | |
| 407 | - | |
| 408 | - return true; | |
| 409 | - } | |
| 410 | - | |
| 411 | - // No script files, great ;-) . | |
| 412 | - return false; | |
| 413 | - } | |
| 414 | - | |
| 415 | - /** | |
| 416 | - * Determines wheter a certain `<script>` $tag should be aggregated or not. | |
| 417 | - * | |
| 418 | - * We consider these as "aggregation-safe" currently: | |
| 419 | - * - script tags without a `type` attribute | |
| 420 | - * - script tags with these `type` attribute values: `text/javascript`, `text/ecmascript`, `application/javascript`, | |
| 421 | - * and `application/ecmascript` | |
| 422 | - * | |
| 423 | - * Everything else should return false. | |
| 424 | - * | |
| 425 | - * @link https://developer.mozilla.org/en/docs/Web/HTML/Element/script#attr-type | |
| 426 | - * | |
| 427 | - * @param string $tag Script node & child(ren). | |
| 428 | - * @return bool | |
| 429 | - */ | |
| 430 | - public function should_aggregate( $tag ) | |
| 431 | - { | |
| 432 | - if ( empty( $tag ) ) { | |
| 433 | - return false; | |
| 434 | - } | |
| 435 | - | |
| 436 | - // We're only interested in the type attribute of the <script> tag itself, not any possible | |
| 437 | - // inline code that might just contain the 'type=' string... | |
| 438 | - $tag_parts = array(); | |
| 439 | - preg_match( '#<(script[^>]*)>#i', $tag, $tag_parts ); | |
| 440 | - $tag_without_contents = null; | |
| 441 | - if ( ! empty( $tag_parts[1] ) ) { | |
| 442 | - $tag_without_contents = $tag_parts[1]; | |
| 443 | - } | |
| 444 | - | |
| 445 | - $has_type = ( strpos( $tag_without_contents, 'type' ) !== false ); | |
| 446 | - | |
| 447 | - $type_valid = false; | |
| 448 | - if ( $has_type ) { | |
| 449 | - $type_valid = (bool) preg_match( '/type\s*=\s*[\'"]?(?:text|application)\/(?:javascript|ecmascript)[\'"]?/i', $tag_without_contents ); | |
| 450 | - } | |
| 451 | - | |
| 452 | - $should_aggregate = false; | |
| 453 | - if ( ! $has_type || $type_valid ) { | |
| 454 | - $should_aggregate = true; | |
| 455 | - } | |
| 456 | - | |
| 457 | - return $should_aggregate; | |
| 458 | - } | |
| 459 | - | |
| 460 | - /** | |
| 461 | - * Joins and optimizes JS. | |
| 462 | - */ | |
| 463 | - public function minify() | |
| 464 | - { | |
| 465 | - foreach ( $this->scripts as $script ) { | |
| 466 | - if ( empty( $script ) ) { | |
| 467 | - continue; | |
| 468 | - } | |
| 469 | - | |
| 470 | - // TODO/FIXME: some duplicate code here, can be reduced/simplified. | |
| 471 | - if ( preg_match( '#^INLINE;#', $script ) ) { | |
| 472 | - // Inline script. | |
| 473 | - $script = preg_replace( '#^INLINE;#', '', $script ); | |
| 474 | - $script = rtrim( $script, ";\n\t\r" ) . ';'; | |
| 475 | - // Add try-catch? | |
| 476 | - if ( $this->trycatch ) { | |
| 477 | - $script = 'try{' . $script . '}catch(e){}'; | |
| 478 | - } | |
| 479 | - $tmpscript = apply_filters( 'autoptimize_js_individual_script', $script, '' ); | |
| 480 | - if ( has_filter( 'autoptimize_js_individual_script' ) && ! empty( $tmpscript ) ) { | |
| 481 | - $script = $tmpscript; | |
| 482 | - $this->alreadyminified = true; | |
| 483 | - } | |
| 484 | - $this->jscode .= "\n" . $script; | |
| 485 | - } else { | |
| 486 | - // External script. | |
| 487 | - if ( false !== $script && file_exists( $script ) && is_readable( $script ) ) { | |
| 488 | - $scriptsrc = file_get_contents( $script ); | |
| 489 | - $scriptsrc = preg_replace( '/\x{EF}\x{BB}\x{BF}/', '', $scriptsrc ); | |
| 490 | - $scriptsrc = rtrim( $scriptsrc, ";\n\t\r" ) . ';'; | |
| 491 | - // Add try-catch? | |
| 492 | - if ( $this->trycatch ) { | |
| 493 | - $scriptsrc = 'try{' . $scriptsrc . '}catch(e){}'; | |
| 494 | - } | |
| 495 | - $tmpscriptsrc = apply_filters( 'autoptimize_js_individual_script', $scriptsrc, $script ); | |
| 496 | - if ( has_filter( 'autoptimize_js_individual_script' ) && ! empty( $tmpscriptsrc ) ) { | |
| 497 | - $scriptsrc = $tmpscriptsrc; | |
| 498 | - $this->alreadyminified = true; | |
| 499 | - } elseif ( $this->can_inject_late( $script ) ) { | |
| 500 | - $scriptsrc = self::build_injectlater_marker( $script, md5( $scriptsrc ) ); | |
| 501 | - } | |
| 502 | - $this->jscode .= "\n" . $scriptsrc; | |
| 503 | - } | |
| 504 | - } | |
| 505 | - } | |
| 506 | - | |
| 507 | - // Check for already-minified code. | |
| 508 | - $this->md5hash = md5( $this->jscode ); | |
| 509 | - $ccheck = new autoptimizeCache( $this->md5hash, 'js' ); | |
| 510 | - if ( $ccheck->check() ) { | |
| 511 | - $this->jscode = $ccheck->retrieve(); | |
| 512 | - return true; | |
| 513 | - } | |
| 514 | - unset( $ccheck ); | |
| 515 | - | |
| 516 | - // $this->jscode has all the uncompressed code now. | |
| 517 | - if ( true !== $this->alreadyminified ) { | |
| 518 | - if ( apply_filters( 'autoptimize_js_do_minify', true ) ) { | |
| 519 | - $tmp_jscode = trim( JSMin::minify( $this->jscode ) ); | |
| 520 | - if ( ! empty( $tmp_jscode ) ) { | |
| 521 | - $this->jscode = $tmp_jscode; | |
| 522 | - unset( $tmp_jscode ); | |
| 523 | - } | |
| 524 | - $this->jscode = $this->inject_minified( $this->jscode ); | |
| 525 | - $this->jscode = apply_filters( 'autoptimize_js_after_minify', $this->jscode ); | |
| 526 | - return true; | |
| 527 | - } else { | |
| 528 | - $this->jscode = $this->inject_minified( $this->jscode ); | |
| 529 | - return false; | |
| 530 | - } | |
| 531 | - } | |
| 532 | - | |
| 533 | - $this->jscode = apply_filters( 'autoptimize_js_after_minify', $this->jscode ); | |
| 534 | - return true; | |
| 535 | - } | |
| 536 | - | |
| 537 | - /** | |
| 538 | - * Caches the JS in uncompressed, deflated and gzipped form. | |
| 539 | - */ | |
| 540 | - public function cache() | |
| 541 | - { | |
| 542 | - $cache = new autoptimizeCache( $this->md5hash, 'js' ); | |
| 543 | - if ( ! $cache->check() ) { | |
| 544 | - // Cache our code. | |
| 545 | - $cache->cache( $this->jscode, 'text/javascript' ); | |
| 546 | - } | |
| 547 | - $this->url = AUTOPTIMIZE_CACHE_URL . $cache->getname(); | |
| 548 | - $this->url = $this->url_replace_cdn( $this->url ); | |
| 549 | - } | |
| 550 | - | |
| 551 | - /** | |
| 552 | - * Returns the content. | |
| 553 | - */ | |
| 554 | - public function getcontent() | |
| 555 | - { | |
| 556 | - // Restore the full content. | |
| 557 | - if ( ! empty( $this->restofcontent ) ) { | |
| 558 | - $this->content .= $this->restofcontent; | |
| 559 | - $this->restofcontent = ''; | |
| 560 | - } | |
| 561 | - | |
| 562 | - // Add the scripts taking forcehead/ deferred (default) into account. | |
| 563 | - if ( $this->forcehead ) { | |
| 564 | - $replace_tag = array( '</head>', 'before' ); | |
| 565 | - $defer = ''; | |
| 566 | - } else { | |
| 567 | - $replace_tag = array( '</body>', 'before' ); | |
| 568 | - $defer = 'defer '; | |
| 569 | - } | |
| 570 | - | |
| 571 | - $defer = apply_filters( 'autoptimize_filter_js_defer', $defer ); | |
| 572 | - $type_js = ''; | |
| 573 | - if ( apply_filters( 'autoptimize_filter_cssjs_addtype', false ) ) { | |
| 574 | - $type_js = 'type="text/javascript" '; | |
| 575 | - } | |
| 576 | - | |
| 577 | - $bodyreplacementpayload = '<script ' . $type_js . $defer . 'src="' . $this->url . '"></script>'; | |
| 578 | - $bodyreplacementpayload = apply_filters( 'autoptimize_filter_js_bodyreplacementpayload', $bodyreplacementpayload ); | |
| 579 | - | |
| 580 | - $bodyreplacement = implode( '', $this->move['first'] ); | |
| 581 | - $bodyreplacement .= $bodyreplacementpayload; | |
| 582 | - $bodyreplacement .= implode( '', $this->move['last'] ); | |
| 583 | - | |
| 584 | - $replace_tag = apply_filters( 'autoptimize_filter_js_replacetag', $replace_tag ); | |
| 585 | - | |
| 586 | - if ( strlen( $this->jscode ) > 0 ) { | |
| 587 | - $this->inject_in_html( $bodyreplacement, $replace_tag ); | |
| 588 | - } | |
| 589 | - | |
| 590 | - // Restore comments. | |
| 591 | - $this->content = $this->restore_comments( $this->content ); | |
| 592 | - | |
| 593 | - // Restore IE hacks. | |
| 594 | - $this->content = $this->restore_iehacks( $this->content ); | |
| 595 | - | |
| 596 | - // Restore noptimize. | |
| 597 | - $this->content = $this->restore_noptimize( $this->content ); | |
| 598 | - | |
| 599 | - // Return the modified HTML. | |
| 600 | - return $this->content; | |
| 601 | - } | |
| 602 | - | |
| 603 | - /** | |
| 604 | - * Checks against the white- and blacklists. | |
| 605 | - * | |
| 606 | - * @param string $tag JS tag. | |
| 607 | - */ | |
| 608 | - private function ismergeable( $tag ) | |
| 609 | - { | |
| 610 | - if ( empty( $tag ) || ! $this->aggregate ) { | |
| 611 | - return false; | |
| 612 | - } | |
| 613 | - | |
| 614 | - if ( ! empty( $this->whitelist ) ) { | |
| 615 | - foreach ( $this->whitelist as $match ) { | |
| 616 | - if ( false !== strpos( $tag, $match ) ) { | |
| 617 | - return true; | |
| 618 | - } | |
| 619 | - } | |
| 620 | - // No match with whitelist. | |
| 621 | - return false; | |
| 622 | - } else { | |
| 623 | - foreach ( $this->domove as $match ) { | |
| 624 | - if ( false !== strpos( $tag, $match ) ) { | |
| 625 | - // Matched something. | |
| 626 | - return false; | |
| 627 | - } | |
| 628 | - } | |
| 629 | - | |
| 630 | - if ( $this->movetolast( $tag ) ) { | |
| 631 | - return false; | |
| 632 | - } | |
| 633 | - | |
| 634 | - foreach ( $this->dontmove as $match ) { | |
| 635 | - if ( false !== strpos( $tag, $match ) ) { | |
| 636 | - // Matched something. | |
| 637 | - return false; | |
| 638 | - } | |
| 639 | - } | |
| 640 | - | |
| 641 | - // If we're here it's safe to merge. | |
| 642 | - return true; | |
| 643 | - } | |
| 644 | - } | |
| 645 | - | |
| 646 | - /** | |
| 647 | - * Checks agains the blacklist. | |
| 648 | - * | |
| 649 | - * @param string $tag tag to check for blacklist (exclusions). | |
| 650 | - */ | |
| 651 | - private function ismovable( $tag ) | |
| 652 | - { | |
| 653 | - if ( empty( $tag ) || true !== $this->include_inline || apply_filters( 'autoptimize_filter_js_unmovable', true ) ) { | |
| 654 | - return false; | |
| 655 | - } | |
| 656 | - | |
| 657 | - foreach ( $this->domove as $match ) { | |
| 658 | - if ( false !== strpos( $tag, $match ) ) { | |
| 659 | - // Matched something. | |
| 660 | - return true; | |
| 661 | - } | |
| 662 | - } | |
| 663 | - | |
| 664 | - if ( $this->movetolast( $tag ) ) { | |
| 665 | - return true; | |
| 666 | - } | |
| 667 | - | |
| 668 | - foreach ( $this->dontmove as $match ) { | |
| 669 | - if ( false !== strpos( $tag, $match ) ) { | |
| 670 | - // Matched something. | |
| 671 | - return false; | |
| 672 | - } | |
| 673 | - } | |
| 674 | - | |
| 675 | - // If we're here it's safe to move. | |
| 676 | - return true; | |
| 677 | - } | |
| 678 | - | |
| 679 | - private function movetolast( $tag ) | |
| 680 | - { | |
| 681 | - if ( empty( $tag ) ) { | |
| 682 | - return false; | |
| 683 | - } | |
| 684 | - | |
| 685 | - foreach ( $this->domovelast as $match ) { | |
| 686 | - if ( false !== strpos( $tag, $match ) ) { | |
| 687 | - // Matched, return true. | |
| 688 | - return true; | |
| 689 | - } | |
| 690 | - } | |
| 691 | - | |
| 692 | - // Should be in 'first'. | |
| 693 | - return false; | |
| 694 | - } | |
| 695 | - | |
| 696 | - /** | |
| 697 | - * Determines wheter a <script> $tag can be excluded from minification (as already minified) based on: | |
| 698 | - * - inject_min_late being active | |
| 699 | - * - filename ending in `min.js` | |
| 700 | - * - filename matching `js/jquery/jquery.js` (WordPress core jquery, is minified) | |
| 701 | - * - filename matching one passed in the consider minified filter | |
| 702 | - * | |
| 703 | - * @param string $js_path Path to JS file. | |
| 704 | - * @return bool | |
| 705 | - */ | |
| 706 | - private function can_inject_late( $js_path ) { | |
| 707 | - $consider_minified_array = apply_filters( 'autoptimize_filter_js_consider_minified', false ); | |
| 708 | - if ( true !== $this->inject_min_late ) { | |
| 709 | - // late-inject turned off. | |
| 710 | - return false; | |
| 711 | - } elseif ( ( false === strpos( $js_path, 'min.js' ) ) && ( false === strpos( $js_path, 'wp-includes/js/jquery/jquery.js' ) ) && ( str_replace( $consider_minified_array, '', $js_path ) === $js_path ) ) { | |
| 712 | - // file not minified based on filename & filter. | |
| 713 | - return false; | |
| 714 | - } else { | |
| 715 | - // phew, all is safe, we can late-inject. | |
| 716 | - return true; | |
| 717 | - } | |
| 718 | - } | |
| 719 | - | |
| 720 | - /** | |
| 721 | - * Returns whether we're doing aggregation or not. | |
| 722 | - * | |
| 723 | - * @return bool | |
| 724 | - */ | |
| 725 | - public function aggregating() | |
| 726 | - { | |
| 727 | - return $this->aggregate; | |
| 728 | - } | |
| 729 | - | |
| 730 | - /** | |
| 731 | - * Minifies a single local js file and returns its (cached) url. | |
| 732 | - * | |
| 733 | - * @param string $filepath Filepath. | |
| 734 | - * @param bool $cache_miss Optional. Force a cache miss. Default false. | |
| 735 | - * | |
| 736 | - * @return bool|string Url pointing to the minified js file or false. | |
| 737 | - */ | |
| 738 | - public function minify_single( $filepath, $cache_miss = false ) | |
| 739 | - { | |
| 740 | - $contents = $this->prepare_minify_single( $filepath ); | |
| 741 | - | |
| 742 | - if ( empty( $contents ) ) { | |
| 743 | - return false; | |
| 744 | - } | |
| 745 | - | |
| 746 | - // Check cache. | |
| 747 | - $hash = 'single_' . md5( $contents ); | |
| 748 | - $cache = new autoptimizeCache( $hash, 'js' ); | |
| 749 | - | |
| 750 | - // If not in cache already, minify... | |
| 751 | - if ( ! $cache->check() || $cache_miss ) { | |
| 752 | - $contents = trim( JSMin::minify( $contents ) ); | |
| 753 | - | |
| 754 | - // Check if minified cache content is empty. | |
| 755 | - if ( empty( $contents ) ) { | |
| 756 | - return false; | |
| 757 | - } | |
| 758 | - | |
| 759 | - // Store in cache. | |
| 760 | - $cache->cache( $contents, 'text/javascript' ); | |
| 761 | - } | |
| 762 | - | |
| 763 | - $url = $this->build_minify_single_url( $cache ); | |
| 764 | - | |
| 765 | - return $url; | |
| 766 | - } | |
| 5 | + private $scripts = array(); | |
| 6 | + private $dontmove = array('document.write','google_ad_client','show_ads.js'); | |
| 7 | + private $domove = array('gaJsHost'); | |
| 8 | + private $jscode = ''; | |
| 9 | + private $url = ''; | |
| 10 | + private $move = array(); | |
| 11 | + | |
| 12 | + //Reads the page and collects script tags | |
| 13 | + public function read() | |
| 14 | + { | |
| 15 | + //Get script files | |
| 16 | + if(preg_match_all('#<script.*</script>#Usmi',$this->content,$matches)) | |
| 17 | + { | |
| 18 | + foreach($matches[0] as $tag) | |
| 19 | + { | |
| 20 | + if(preg_match('#src=("|\')(.*)("|\')#Usmi',$tag,$source)) | |
| 21 | + { | |
| 22 | + //External script | |
| 23 | + $url = current(explode('?',$source[2],2)); | |
| 24 | + $path = $this->getpath($url); | |
| 25 | + if($path !==false && preg_match('#\.js$#',$path)) | |
| 26 | + { | |
| 27 | + //Good script | |
| 28 | + $this->scripts[] = $path; | |
| 29 | + }else{ | |
| 30 | + //External script (example: google analytics) | |
| 31 | + //OR Script is dynamic (.php etc) | |
| 32 | + if($this->ismovable($tag)) | |
| 33 | + { | |
| 34 | + $this->move[] = $tag; | |
| 35 | + } | |
| 36 | + } | |
| 37 | + }else{ | |
| 38 | + //Inline script | |
| 39 | + if($this->ismergeable($tag)) | |
| 40 | + { | |
| 41 | + preg_match('#<script.*>(.*)</script>#Usmi',$tag,$code); | |
| 42 | + $code = preg_replace('#.*<!\[CDATA\[(?:\s*\*/)?(.*)(?://|/\*)\s*?\]\]>.*#sm','$1',$code[1]); | |
| 43 | + $code = preg_replace('/(?:^\\s*<!--\\s*|\\s*(?:\\/\\/)?\\s*-->\\s*$)/','',$code); | |
| 44 | + $this->scripts[] = 'INLINE;'.$code; | |
| 45 | + }else{ | |
| 46 | + //Can we move this? | |
| 47 | + if($this->ismovable($tag)) | |
| 48 | + { | |
| 49 | + $this->move[] = $tag; | |
| 50 | + }/*else{ | |
| 51 | + //We shouldn't touch this | |
| 52 | + }*/ | |
| 53 | + } | |
| 54 | + } | |
| 55 | + | |
| 56 | + //Remove the original script tag | |
| 57 | + $this->content = str_replace($tag,'',$this->content); | |
| 58 | + } | |
| 59 | + | |
| 60 | + return true; | |
| 61 | + } | |
| 62 | + | |
| 63 | + //No script files :( | |
| 64 | + return false; | |
| 65 | + } | |
| 66 | + | |
| 67 | + //Joins and optimizes JS | |
| 68 | + public function minify() | |
| 69 | + { | |
| 70 | + foreach($this->scripts as $script) | |
| 71 | + { | |
| 72 | + if(preg_match('#^INLINE;#',$script)) | |
| 73 | + { | |
| 74 | + //Inline script | |
| 75 | + $script = preg_replace('#^INLINE;#','',$script); | |
| 76 | + $this->jscode .= "\n".$script; | |
| 77 | + }else{ | |
| 78 | + //External script | |
| 79 | + if($script !== false && file_exists($script) && is_readable($script)) | |
| 80 | + { | |
| 81 | + $script = file_get_contents($script); | |
| 82 | + $this->jscode .= "\n".$script; | |
| 83 | + }/*else{ | |
| 84 | + //Couldn't read JS. Maybe getpath isn't working? | |
| 85 | + }*/ | |
| 86 | + } | |
| 87 | + } | |
| 88 | + | |
| 89 | + //$this->jscode has all the uncompressed code now. | |
| 90 | + if(class_exists('JSMin')) | |
| 91 | + { | |
| 92 | + $this->jscode = trim(JSMin::minify($this->jscode)); | |
| 93 | + return true; | |
| 94 | + } | |
| 95 | + | |
| 96 | + return false; | |
| 97 | + } | |
| 98 | + | |
| 99 | + //Caches the JS in uncompressed, deflated and gzipped form. | |
| 100 | + public function cache() | |
| 101 | + { | |
| 102 | + $md5 = md5($this->jscode); | |
| 103 | + $cache = new autopimizeCache(WP_PLUGIN_DIR.'/autoptimize/cache/',$md5); | |
| 104 | + if(!$cache->check()) | |
| 105 | + { | |
| 106 | + //Cache our code | |
| 107 | + $cache->cache($this->jscode,'text/javascript'); | |
| 108 | + } | |
| 109 | + $this->url = WP_PLUGIN_URL.'/autoptimize/cache/'.$cache->getname(); | |
| 110 | + } | |
| 111 | + | |
| 112 | + //Returns the content | |
| 113 | + public function getcontent() | |
| 114 | + { | |
| 115 | + $bodyreplacement = implode('',$this->move).'<script type="text/javascript" src="'.$this->url.'"></script></body>'; | |
| 116 | + $this->content = str_replace('</body>',$bodyreplacement,$this->content); | |
| 117 | + return $this->content; | |
| 118 | + } | |
| 119 | + | |
| 120 | + //Checks agains the whitelist | |
| 121 | + private function ismergeable($tag) | |
| 122 | + { | |
| 123 | + foreach($this->domove as $match) | |
| 124 | + { | |
| 125 | + if(strpos($tag,$match)!==false) | |
| 126 | + { | |
| 127 | + //Matched something | |
| 128 | + return false; | |
| 129 | + } | |
| 130 | + } | |
| 131 | + | |
| 132 | + //If we're here it's safe to merge | |
| 133 | + return true; | |
| 134 | + } | |
| 135 | + | |
| 136 | + //Checks agains the blacklist | |
| 137 | + private function ismovable($tag) | |
| 138 | + { | |
| 139 | + $allowed = !$this->ismergeable($tag); | |
| 140 | + | |
| 141 | + if($allowed == true) | |
| 142 | + { | |
| 143 | + return true; | |
| 144 | + } | |
| 145 | + | |
| 146 | + foreach($this->dontmove as $match) | |
| 147 | + { | |
| 148 | + if(strpos($tag,$match)!==false) | |
| 149 | + { | |
| 150 | + //Matched something | |
| 151 | + return false; | |
| 152 | + } | |
| 153 | + } | |
| 154 | + | |
| 155 | + //If we're here it's safe to move | |
| 156 | + return true; | |
| 157 | + } | |
| 767 | 158 | } |
