| @@ -1,814 +1,40 @@ | ||
| 1 | 1 | <?php |
| 2 | -/** | |
| 3 | - * Handles disk-cache-related operations. | |
| 4 | - */ | |
| 5 | 2 | |
| 6 | -if ( ! defined( 'ABSPATH' ) ) { | |
| 7 | - exit; | |
| 8 | -} | |
| 9 | - | |
| 10 | -class autoptimizeCache | |
| 3 | +class autopimizeCache | |
| 11 | 4 | { |
| 12 | - /** | |
| 13 | - * Cache filename. | |
| 14 | - * | |
| 15 | - * @var string | |
| 16 | - */ | |
| 17 | - private $filename; | |
| 18 | - | |
| 19 | - /** | |
| 20 | - * Cache directory path (with a trailing slash). | |
| 21 | - * | |
| 22 | - * @var string | |
| 23 | - */ | |
| 24 | - private $cachedir; | |
| 25 | - | |
| 26 | - /** | |
| 27 | - * Whether gzipping is done by the web server or us. | |
| 28 | - * True => we don't gzip, the web server does it. | |
| 29 | - * False => we do it ourselves. | |
| 30 | - * | |
| 31 | - * @var bool | |
| 32 | - */ | |
| 33 | - private $nogzip; | |
| 34 | - | |
| 35 | - /** | |
| 36 | - * Ctor. | |
| 37 | - * | |
| 38 | - * @param string $md5 Hash. | |
| 39 | - * @param string $ext Extension. | |
| 40 | - */ | |
| 41 | - public function __construct( $md5, $ext = 'php' ) | |
| 42 | - { | |
| 43 | - $_min_ext = ''; | |
| 44 | - if ( apply_filters( 'autoptimize_filter_cache_url_add_min_ext', false ) ) { | |
| 45 | - $_min_ext = '.min'; | |
| 46 | - } | |
| 47 | - | |
| 48 | - $this->cachedir = AUTOPTIMIZE_CACHE_DIR; | |
| 49 | - $this->nogzip = AUTOPTIMIZE_CACHE_NOGZIP; | |
| 50 | - if ( ! $this->nogzip ) { | |
| 51 | - $this->filename = AUTOPTIMIZE_CACHEFILE_PREFIX . $md5 . $_min_ext . '.php'; | |
| 52 | - } else { | |
| 53 | - if ( in_array( $ext, array( 'js', 'css' ) ) ) { | |
| 54 | - $this->filename = $ext . '/' . AUTOPTIMIZE_CACHEFILE_PREFIX . $md5 . $_min_ext . '.' . $ext; | |
| 55 | - } else { | |
| 56 | - $this->filename = AUTOPTIMIZE_CACHEFILE_PREFIX . $md5 . $_min_ext . '.' . $ext; | |
| 57 | - } | |
| 58 | - } | |
| 59 | - } | |
| 60 | - | |
| 61 | - /** | |
| 62 | - * Returns true if the cached file exists on disk. | |
| 63 | - * | |
| 64 | - * @return bool | |
| 65 | - */ | |
| 66 | - public function check() | |
| 67 | - { | |
| 68 | - return file_exists( $this->cachedir . $this->filename ); | |
| 69 | - } | |
| 70 | - | |
| 71 | - /** | |
| 72 | - * Returns cache contents if they exist, false otherwise. | |
| 73 | - * | |
| 74 | - * @return string|false | |
| 75 | - */ | |
| 76 | - public function retrieve() | |
| 77 | - { | |
| 78 | - if ( $this->check() ) { | |
| 79 | - if ( false == $this->nogzip ) { | |
| 80 | - return file_get_contents( $this->cachedir . $this->filename . '.none' ); | |
| 81 | - } else { | |
| 82 | - return file_get_contents( $this->cachedir . $this->filename ); | |
| 83 | - } | |
| 84 | - } | |
| 85 | - return false; | |
| 86 | - } | |
| 87 | - | |
| 88 | - /** | |
| 89 | - * Stores given $data in cache. | |
| 90 | - * | |
| 91 | - * @param string $data Data to cache. | |
| 92 | - * @param string $mime Mimetype. | |
| 93 | - * | |
| 94 | - * @return void | |
| 95 | - */ | |
| 96 | - public function cache( $data, $mime ) | |
| 97 | - { | |
| 98 | - // off by default; check if cachedirs exist every time before caching | |
| 99 | - // | |
| 100 | - // to be activated for users that experience these ugly errors; | |
| 101 | - // PHP Warning: file_put_contents failed to open stream: No such file or directory. | |
| 102 | - if ( apply_filters( 'autoptimize_filter_cache_checkdirs_on_write', false ) ) { | |
| 103 | - $this->check_and_create_dirs(); | |
| 104 | - } | |
| 105 | - | |
| 106 | - if ( false === $this->nogzip ) { | |
| 107 | - // We handle gzipping ourselves. | |
| 108 | - $file = 'default.php'; | |
| 109 | - $phpcode = file_get_contents( AUTOPTIMIZE_PLUGIN_DIR . 'config/' . $file ); | |
| 110 | - $phpcode = str_replace( array( '%%CONTENT%%', 'exit;' ), array( $mime, '' ), $phpcode ); | |
| 111 | - | |
| 112 | - file_put_contents( $this->cachedir . $this->filename, $phpcode ); | |
| 113 | - file_put_contents( $this->cachedir . $this->filename . '.none', $data ); | |
| 114 | - } else { | |
| 115 | - // Write code to cache without doing anything else. | |
| 116 | - file_put_contents( $this->cachedir . $this->filename, $data ); | |
| 117 | - | |
| 118 | - // save fallback .js or .css file if filter true (to be false by default) but not if snippet or single. | |
| 119 | - if ( self::do_fallback() && strpos( $this->filename, '_snippet_' ) === false && strpos( $this->filename, '_single_' ) === false ) { | |
| 120 | - $_extension = pathinfo( $this->filename, PATHINFO_EXTENSION ); | |
| 121 | - $_fallback_file = AUTOPTIMIZE_CACHEFILE_PREFIX . 'fallback.' . $_extension; | |
| 122 | - if ( ( 'css' === $_extension || 'js' === $_extension ) && ! file_exists( $this->cachedir . $_extension . '/' . $_fallback_file ) ) { | |
| 123 | - file_put_contents( $this->cachedir . $_extension . '/' . $_fallback_file, $data ); | |
| 124 | - } | |
| 125 | - } | |
| 126 | - | |
| 127 | - if ( apply_filters( 'autoptimize_filter_cache_create_static_gzip', false ) ) { | |
| 128 | - // Create an additional cached gzip file. | |
| 129 | - file_put_contents( $this->cachedir . $this->filename . '.gz', gzencode( $data, 9, FORCE_GZIP ) ); | |
| 130 | - // If PHP Brotli extension is installed, create an additional cached Brotli file. | |
| 131 | - if ( function_exists( 'brotli_compress' ) ) { | |
| 132 | - file_put_contents( $this->cachedir . $this->filename . '.br', brotli_compress( $data, 11, BROTLI_GENERIC ) ); | |
| 133 | - } | |
| 134 | - } | |
| 135 | - } | |
| 136 | - | |
| 137 | - // Provide 3rd party action hook for every cache file that is created. | |
| 138 | - // This hook can for example be used to inject a copy of the created cache file to a other domain. | |
| 139 | - do_action( 'autoptimize_action_cache_file_created', $this->cachedir . $this->filename ); | |
| 140 | - } | |
| 141 | - | |
| 142 | - /** | |
| 143 | - * Get cache filename. | |
| 144 | - * | |
| 145 | - * @return string | |
| 146 | - */ | |
| 147 | - public function getname() | |
| 148 | - { | |
| 149 | - // NOTE: This could've maybe been a do_action() instead, however, | |
| 150 | - // that ship has sailed. | |
| 151 | - // The original idea here was to provide 3rd party code a hook so that | |
| 152 | - // it can "listen" to all the complete autoptimized-urls that the page | |
| 153 | - // will emit... Or something to that effect I think? | |
| 154 | - apply_filters( 'autoptimize_filter_cache_getname', AUTOPTIMIZE_CACHE_URL . $this->filename ); | |
| 155 | - | |
| 156 | - return $this->filename; | |
| 157 | - } | |
| 158 | - | |
| 159 | - /** | |
| 160 | - * Returns true if given `$file` is considered a valid Autoptimize cache file, | |
| 161 | - * false otherwise. | |
| 162 | - * | |
| 163 | - * @param string $dir Directory name (with a trailing slash). | |
| 164 | - * @param string $file Filename. | |
| 165 | - * @return bool | |
| 166 | - */ | |
| 167 | - protected static function is_valid_cache_file( $dir, $file ) | |
| 168 | - { | |
| 169 | - if ( '.' !== $file && '..' !== $file && | |
| 170 | - false !== strpos( $file, AUTOPTIMIZE_CACHEFILE_PREFIX ) && | |
| 171 | - is_file( $dir . $file ) ) { | |
| 172 | - | |
| 173 | - // It's a valid file! | |
| 174 | - return true; | |
| 175 | - } | |
| 176 | - | |
| 177 | - // Everything else is considered invalid! | |
| 178 | - return false; | |
| 179 | - } | |
| 180 | - | |
| 181 | - /** | |
| 182 | - * Clears contents of AUTOPTIMIZE_CACHE_DIR. | |
| 183 | - * | |
| 184 | - * @return void | |
| 185 | - */ | |
| 186 | - protected static function clear_cache_classic() | |
| 187 | - { | |
| 188 | - $contents = self::get_cache_contents(); | |
| 189 | - foreach ( $contents as $name => $files ) { | |
| 190 | - $dir = rtrim( AUTOPTIMIZE_CACHE_DIR . $name, '/' ) . '/'; | |
| 191 | - foreach ( $files as $file ) { | |
| 192 | - if ( self::is_valid_cache_file( $dir, $file ) ) { | |
| 193 | - @unlink( $dir . $file ); // @codingStandardsIgnoreLine | |
| 194 | - } | |
| 195 | - } | |
| 196 | - } | |
| 197 | - | |
| 198 | - @unlink( AUTOPTIMIZE_CACHE_DIR . '/.htaccess' ); // @codingStandardsIgnoreLine | |
| 199 | - } | |
| 200 | - | |
| 201 | - /** | |
| 202 | - * Recursively deletes the specified pathname (file/directory) if possible. | |
| 203 | - * Returns true on success, false otherwise. | |
| 204 | - * | |
| 205 | - * @param string $pathname Pathname to remove. | |
| 206 | - * | |
| 207 | - * @return bool | |
| 208 | - */ | |
| 209 | - protected static function rmdir( $pathname ) | |
| 210 | - { | |
| 211 | - $files = self::get_dir_contents( $pathname ); | |
| 212 | - foreach ( $files as $file ) { | |
| 213 | - $path = $pathname . '/' . $file; | |
| 214 | - if ( is_dir( $path ) ) { | |
| 215 | - self::rmdir( $path ); | |
| 216 | - } else { | |
| 217 | - unlink( $path ); | |
| 218 | - } | |
| 219 | - } | |
| 220 | - | |
| 221 | - return rmdir( $pathname ); | |
| 222 | - } | |
| 223 | - | |
| 224 | - /** | |
| 225 | - * Clears contents of AUTOPTIMIZE_CACHE_DIR by renaming the current | |
| 226 | - * cache directory into a new one with a unique name and then | |
| 227 | - * re-creating the default (empty) cache directory. | |
| 228 | - * | |
| 229 | - * Important/ Fixme: this does not take multisite into account, so | |
| 230 | - * if advanced_cache_clear_enabled is true (it is not by default) | |
| 231 | - * then the content for all subsites is zapped! | |
| 232 | - * | |
| 233 | - * @return bool Returns true when everything is done successfully, false otherwise. | |
| 234 | - */ | |
| 235 | - protected static function clear_cache_via_rename() | |
| 236 | - { | |
| 237 | - $ok = false; | |
| 238 | - $dir = self::get_pathname_base(); | |
| 239 | - $new_name = self::get_unique_name(); | |
| 240 | - | |
| 241 | - // Makes sure the new pathname is on the same level... | |
| 242 | - $new_pathname = dirname( $dir ) . '/' . $new_name; | |
| 243 | - $renamed = @rename( $dir, $new_pathname ); // @codingStandardsIgnoreLine | |
| 244 | - | |
| 245 | - // When renamed, re-create the default cache directory back so it's | |
| 246 | - // available again... | |
| 247 | - if ( $renamed ) { | |
| 248 | - $ok = self::cacheavail(); | |
| 249 | - } | |
| 250 | - | |
| 251 | - return $ok; | |
| 252 | - } | |
| 253 | - | |
| 254 | - /** | |
| 255 | - * Returns true when advanced cache clearing is enabled. | |
| 256 | - * | |
| 257 | - * @return bool | |
| 258 | - */ | |
| 259 | - public static function advanced_cache_clear_enabled() | |
| 260 | - { | |
| 261 | - return apply_filters( 'autoptimize_filter_cache_clear_advanced', false ); | |
| 262 | - } | |
| 263 | - | |
| 264 | - /** | |
| 265 | - * Returns a (hopefully) unique new cache folder name for renaming purposes. | |
| 266 | - * | |
| 267 | - * @return string | |
| 268 | - */ | |
| 269 | - protected static function get_unique_name() | |
| 270 | - { | |
| 271 | - $prefix = self::get_advanced_cache_clear_prefix(); | |
| 272 | - $new_name = uniqid( $prefix, true ); | |
| 273 | - | |
| 274 | - return $new_name; | |
| 275 | - } | |
| 276 | - | |
| 277 | - /** | |
| 278 | - * Get cache prefix name used in advanced cache clearing mode. | |
| 279 | - * | |
| 280 | - * @return string | |
| 281 | - */ | |
| 282 | - protected static function get_advanced_cache_clear_prefix() | |
| 283 | - { | |
| 284 | - $pathname = self::get_pathname_base(); | |
| 285 | - $basename = basename( $pathname ); | |
| 286 | - $prefix = $basename . '-artifact-'; | |
| 287 | - | |
| 288 | - return $prefix; | |
| 289 | - } | |
| 290 | - | |
| 291 | - /** | |
| 292 | - * Returns an array of file and directory names found within | |
| 293 | - * the given $pathname without '.' and '..' elements. | |
| 294 | - * | |
| 295 | - * @param string $pathname Pathname. | |
| 296 | - * | |
| 297 | - * @return array | |
| 298 | - */ | |
| 299 | - protected static function get_dir_contents( $pathname ) | |
| 300 | - { | |
| 301 | - return array_slice( scandir( $pathname ), 2 ); | |
| 302 | - } | |
| 303 | - | |
| 304 | - /** | |
| 305 | - * Wipes directories which were created as part of the fast cache clearing | |
| 306 | - * routine (which renames the current cache directory into a new one with | |
| 307 | - * a custom-prefixed unique name). | |
| 308 | - * | |
| 309 | - * @return bool | |
| 310 | - */ | |
| 311 | - public static function delete_advanced_cache_clear_artifacts() | |
| 312 | - { | |
| 313 | - // Don't go through these motions (called from the cachechecker) if advanced cache clear isn't even active. | |
| 314 | - if ( ! self::advanced_cache_clear_enabled() ) { | |
| 315 | - return false; | |
| 316 | - } | |
| 317 | - | |
| 318 | - $dir = self::get_pathname_base(); | |
| 319 | - $prefix = self::get_advanced_cache_clear_prefix(); | |
| 320 | - $parent = dirname( $dir ); | |
| 321 | - $ok = false; | |
| 322 | - | |
| 323 | - // Returns the list of files without '.' and '..' elements. | |
| 324 | - $files = self::get_dir_contents( $parent ); | |
| 325 | - if ( is_array( $files ) && ! empty( $files ) ) { | |
| 326 | - foreach ( $files as $file ) { | |
| 327 | - $path = $parent . '/' . $file; | |
| 328 | - $prefixed = ( false !== strpos( $path, $prefix ) ); | |
| 329 | - // Removing only our own (prefixed) directories... | |
| 330 | - if ( is_dir( $path ) && $prefixed ) { | |
| 331 | - $ok = self::rmdir( $path ); | |
| 332 | - } | |
| 333 | - } | |
| 334 | - } | |
| 335 | - | |
| 336 | - return $ok; | |
| 337 | - } | |
| 338 | - | |
| 339 | - /** | |
| 340 | - * Returns the cache directory pathname used. | |
| 341 | - * Done as a function so we canSlightly different | |
| 342 | - * if multisite is used and `autoptimize_separate_blog_caches` filter | |
| 343 | - * is used. | |
| 344 | - * | |
| 345 | - * @return string | |
| 346 | - */ | |
| 347 | - public static function get_pathname() | |
| 348 | - { | |
| 349 | - $pathname = self::get_pathname_base(); | |
| 350 | - | |
| 351 | - if ( is_multisite() && apply_filters( 'autoptimize_separate_blog_caches', true ) ) { | |
| 352 | - $blog_id = get_current_blog_id(); | |
| 353 | - $pathname .= $blog_id . '/'; | |
| 354 | - } | |
| 355 | - | |
| 356 | - return $pathname; | |
| 357 | - } | |
| 358 | - | |
| 359 | - /** | |
| 360 | - * Returns the base path of our cache directory. | |
| 361 | - * | |
| 362 | - * @return string | |
| 363 | - */ | |
| 364 | - protected static function get_pathname_base() | |
| 365 | - { | |
| 366 | - $pathname = WP_CONTENT_DIR . AUTOPTIMIZE_CACHE_CHILD_DIR; | |
| 367 | - | |
| 368 | - return $pathname; | |
| 369 | - } | |
| 370 | - | |
| 371 | - /** | |
| 372 | - * Deletes everything from the cache directories. | |
| 373 | - * | |
| 374 | - * @param bool $propagate Whether to trigger additional actions when cache is purged. | |
| 375 | - * | |
| 376 | - * @return bool | |
| 377 | - */ | |
| 378 | - public static function clearall( $propagate = true ) | |
| 379 | - { | |
| 380 | - if ( ! self::cacheavail() ) { | |
| 381 | - return false; | |
| 382 | - } | |
| 383 | - | |
| 384 | - // TODO/FIXME: If cache is big, switch to advanced/new cache clearing automatically? | |
| 385 | - if ( self::advanced_cache_clear_enabled() ) { | |
| 386 | - self::clear_cache_via_rename(); | |
| 387 | - } else { | |
| 388 | - self::clear_cache_classic(); | |
| 389 | - } | |
| 390 | - | |
| 391 | - // Remove 404 handler if required. | |
| 392 | - if ( self::do_fallback() ) { | |
| 393 | - $_fallback_php = trailingslashit( WP_CONTENT_DIR ) . 'autoptimize_404_handler.php'; | |
| 394 | - @unlink( $_fallback_php ); // @codingStandardsIgnoreLine | |
| 395 | - } | |
| 396 | - | |
| 397 | - // Remove the transient so it gets regenerated... | |
| 398 | - delete_transient( 'autoptimize_stats' ); | |
| 399 | - | |
| 400 | - // Cache was just purged, clear page cache and allow others to hook into our purging... | |
| 401 | - if ( true === $propagate ) { | |
| 402 | - if ( ! function_exists( 'autoptimize_do_cachepurged_action' ) ) { | |
| 403 | - function autoptimize_do_cachepurged_action() { | |
| 404 | - do_action( 'autoptimize_action_cachepurged' ); | |
| 405 | - } | |
| 406 | - } | |
| 407 | - add_action( 'shutdown', 'autoptimize_do_cachepurged_action', 11 ); | |
| 408 | - add_action( 'autoptimize_action_cachepurged', array( 'autoptimizeCache', 'flushPageCache' ), 10, 0 ); | |
| 409 | - } | |
| 410 | - | |
| 411 | - // Warm cache (part of speedupper)! | |
| 412 | - if ( apply_filters( 'autoptimize_filter_speedupper', true ) && false == get_transient( 'autoptimize_cache_warmer_protector' ) ) { | |
| 413 | - set_transient( 'autoptimize_cache_warmer_protector', 'I shall not warm cache for another 10 minutes.', 60 * 10 ); | |
| 414 | - $url = site_url() . '/?ao_speedup_cachebuster=' . rand( 1, 100000 ); | |
| 415 | - $url = apply_filters( 'autoptimize_filter_cache_warmer_url', $url ); | |
| 416 | - $cache = @wp_remote_get( $url ); // @codingStandardsIgnoreLine | |
| 417 | - unset( $cache ); | |
| 418 | - } | |
| 419 | - | |
| 420 | - return true; | |
| 421 | - } | |
| 422 | - | |
| 423 | - /** | |
| 424 | - * Wrapper for clearall but with false param | |
| 425 | - * to ensure the event is not propagated to others | |
| 426 | - * through our own hooks (to avoid infinite loops). | |
| 427 | - * | |
| 428 | - * @return bool | |
| 429 | - */ | |
| 430 | - public static function clearall_actionless() | |
| 431 | - { | |
| 432 | - return self::clearall( false ); | |
| 433 | - } | |
| 434 | - | |
| 435 | - /** | |
| 436 | - * Returns the contents of our cache dirs. | |
| 437 | - * | |
| 438 | - * @return array | |
| 439 | - */ | |
| 440 | - protected static function get_cache_contents() | |
| 441 | - { | |
| 442 | - $contents = array(); | |
| 443 | - | |
| 444 | - foreach ( array( '', 'js', 'css' ) as $dir ) { | |
| 445 | - $contents[ $dir ] = scandir( AUTOPTIMIZE_CACHE_DIR . $dir ); | |
| 446 | - } | |
| 447 | - | |
| 448 | - return $contents; | |
| 449 | - } | |
| 450 | - | |
| 451 | - /** | |
| 452 | - * Returns stats about cached contents. | |
| 453 | - * | |
| 454 | - * @return array | |
| 455 | - */ | |
| 456 | - public static function stats() | |
| 457 | - { | |
| 458 | - $stats = get_transient( 'autoptimize_stats' ); | |
| 459 | - | |
| 460 | - // If no transient, do the actual scan! | |
| 461 | - if ( ! is_array( $stats ) ) { | |
| 462 | - if ( ! self::cacheavail() ) { | |
| 463 | - return 0; | |
| 464 | - } | |
| 465 | - $stats = self::stats_scan(); | |
| 466 | - $count = $stats[0]; | |
| 467 | - if ( $count > 100 ) { | |
| 468 | - // Store results in transient. | |
| 469 | - set_transient( | |
| 470 | - 'autoptimize_stats', | |
| 471 | - $stats, | |
| 472 | - apply_filters( 'autoptimize_filter_cache_statsexpiry', HOUR_IN_SECONDS ) | |
| 473 | - ); | |
| 474 | - } | |
| 475 | - } | |
| 476 | - | |
| 477 | - return $stats; | |
| 478 | - } | |
| 479 | - | |
| 480 | - /** | |
| 481 | - * Performs a scan of cache directory contents and returns an array | |
| 482 | - * with 3 values: count, size, timestamp. | |
| 483 | - * count = total number of found files | |
| 484 | - * size = total filesize (in bytes) of found files | |
| 485 | - * timestamp = unix timestamp when the scan was last performed/finished. | |
| 486 | - * | |
| 487 | - * @return array | |
| 488 | - */ | |
| 489 | - protected static function stats_scan() | |
| 490 | - { | |
| 491 | - $count = 0; | |
| 492 | - $size = 0; | |
| 493 | - | |
| 494 | - // Scan everything in our cache directories. | |
| 495 | - foreach ( self::get_cache_contents() as $name => $files ) { | |
| 496 | - $dir = rtrim( AUTOPTIMIZE_CACHE_DIR . $name, '/' ) . '/'; | |
| 497 | - foreach ( $files as $file ) { | |
| 498 | - if ( self::is_valid_cache_file( $dir, $file ) ) { | |
| 499 | - if ( AUTOPTIMIZE_CACHE_NOGZIP && | |
| 500 | - ( | |
| 501 | - false !== strpos( $file, '.js' ) || | |
| 502 | - false !== strpos( $file, '.css' ) || | |
| 503 | - false !== strpos( $file, '.img' ) || | |
| 504 | - false !== strpos( $file, '.txt' ) | |
| 505 | - ) | |
| 506 | - ) { | |
| 507 | - // Web server is gzipping, we count .js|.css|.img|.txt files. | |
| 508 | - $count++; | |
| 509 | - } elseif ( ! AUTOPTIMIZE_CACHE_NOGZIP && false !== strpos( $file, '.none' ) ) { | |
| 510 | - // We are gzipping ourselves via php, counting only .none files. | |
| 511 | - $count++; | |
| 512 | - } | |
| 513 | - $size += filesize( $dir . $file ); | |
| 514 | - } | |
| 515 | - } | |
| 516 | - } | |
| 517 | - | |
| 518 | - $stats = array( $count, $size, time() ); | |
| 519 | - | |
| 520 | - return $stats; | |
| 521 | - } | |
| 522 | - | |
| 523 | - /** | |
| 524 | - * Ensures the cache directory exists, is writeable and contains the | |
| 525 | - * required .htaccess files. | |
| 526 | - * Returns false in case it fails to ensure any of those things. | |
| 527 | - * | |
| 528 | - * @return bool | |
| 529 | - */ | |
| 530 | - public static function cacheavail() | |
| 531 | - { | |
| 532 | - if ( false === autoptimizeCache::check_and_create_dirs() ) { | |
| 533 | - return false; | |
| 534 | - } | |
| 535 | - | |
| 536 | - // Using .htaccess inside our cache folder to overrule wp-super-cache. | |
| 537 | - $htaccess = AUTOPTIMIZE_CACHE_DIR . '/.htaccess'; | |
| 538 | - if ( ! is_file( $htaccess ) ) { | |
| 539 | - /** | |
| 540 | - * Create `wp-content/AO_htaccess_tmpl` file with | |
| 541 | - * whatever htaccess rules you might need | |
| 542 | - * if you want to override default AO htaccess | |
| 543 | - */ | |
| 544 | - $htaccess_tmpl = WP_CONTENT_DIR . '/AO_htaccess_tmpl'; | |
| 545 | - if ( is_file( $htaccess_tmpl ) ) { | |
| 546 | - $content = file_get_contents( $htaccess_tmpl ); | |
| 547 | - } elseif ( is_multisite() || ! AUTOPTIMIZE_CACHE_NOGZIP ) { | |
| 548 | - $content = '<IfModule mod_expires.c> | |
| 549 | - ExpiresActive On | |
| 550 | - ExpiresByType text/css A30672000 | |
| 551 | - ExpiresByType text/javascript A30672000 | |
| 552 | - ExpiresByType application/javascript A30672000 | |
| 553 | -</IfModule> | |
| 554 | -<IfModule mod_headers.c> | |
| 555 | - Header append Cache-Control "public, immutable" | |
| 556 | -</IfModule> | |
| 557 | -<IfModule mod_deflate.c> | |
| 558 | - <FilesMatch "\.(js|css)$"> | |
| 559 | - SetOutputFilter DEFLATE | |
| 560 | - </FilesMatch> | |
| 561 | -</IfModule> | |
| 562 | -<IfModule mod_authz_core.c> | |
| 563 | - <Files *.php> | |
| 564 | - Require all granted | |
| 565 | - </Files> | |
| 566 | -</IfModule> | |
| 567 | -<IfModule !mod_authz_core.c> | |
| 568 | - <Files *.php> | |
| 569 | - Order allow,deny | |
| 570 | - Allow from all | |
| 571 | - </Files> | |
| 572 | -</IfModule>'; | |
| 573 | - } else { | |
| 574 | - $content = '<IfModule mod_expires.c> | |
| 575 | - ExpiresActive On | |
| 576 | - ExpiresByType text/css A30672000 | |
| 577 | - ExpiresByType text/javascript A30672000 | |
| 578 | - ExpiresByType application/javascript A30672000 | |
| 579 | -</IfModule> | |
| 580 | -<IfModule mod_headers.c> | |
| 581 | - Header append Cache-Control "public, immutable" | |
| 582 | -</IfModule> | |
| 583 | -<IfModule mod_deflate.c> | |
| 584 | - <FilesMatch "\.(js|css)$"> | |
| 585 | - SetOutputFilter DEFLATE | |
| 586 | - </FilesMatch> | |
| 587 | -</IfModule> | |
| 588 | -<IfModule mod_authz_core.c> | |
| 589 | - <Files *.php> | |
| 590 | - Require all denied | |
| 591 | - </Files> | |
| 592 | -</IfModule> | |
| 593 | -<IfModule !mod_authz_core.c> | |
| 594 | - <Files *.php> | |
| 595 | - Order deny,allow | |
| 596 | - Deny from all | |
| 597 | - </Files> | |
| 598 | -</IfModule>'; | |
| 599 | - } | |
| 600 | - | |
| 601 | - if ( self::do_fallback() === true ) { | |
| 602 | - $content .= "\nErrorDocument 404 " . trailingslashit( parse_url( content_url(), PHP_URL_PATH ) ) . 'autoptimize_404_handler.php'; | |
| 603 | - } | |
| 604 | - @file_put_contents( $htaccess, $content ); // @codingStandardsIgnoreLine | |
| 605 | - } | |
| 606 | - | |
| 607 | - if ( self::do_fallback() ) { | |
| 608 | - self::check_fallback_php(); | |
| 609 | - } | |
| 610 | - | |
| 611 | - // All OK! | |
| 612 | - return true; | |
| 613 | - } | |
| 614 | - | |
| 615 | - /** | |
| 616 | - * Checks if fallback-php file exists and create it if not. | |
| 617 | - * | |
| 618 | - * Return bool | |
| 619 | - */ | |
| 620 | - public static function check_fallback_php() { | |
| 621 | - $_fallback_filename = 'autoptimize_404_handler.php'; | |
| 622 | - $_fallback_php = trailingslashit( WP_CONTENT_DIR ) . $_fallback_filename; | |
| 623 | - $_fallback_status = true; | |
| 624 | - | |
| 625 | - if ( ! file_exists( $_fallback_php ) ) { | |
| 626 | - $_fallback_php_contents = file_get_contents( AUTOPTIMIZE_PLUGIN_DIR . 'config/' . $_fallback_filename ); | |
| 627 | - $_fallback_php_contents = str_replace( '<?php exit;', '<?php', $_fallback_php_contents ); | |
| 628 | - $_fallback_php_contents = str_replace( '<!--ao-cache-dir-->', AUTOPTIMIZE_CACHE_DIR, $_fallback_php_contents ); | |
| 629 | - if ( apply_filters( 'autoptimize_filter_cache_fallback_log_errors', false ) ) { | |
| 630 | - $_fallback_php_contents = str_replace( '// error_log', 'error_log', $_fallback_php_contents ); | |
| 631 | - } | |
| 632 | - $_fallback_status = file_put_contents( $_fallback_php, $_fallback_php_contents ); | |
| 633 | - } | |
| 634 | - | |
| 635 | - return $_fallback_status; | |
| 636 | - } | |
| 637 | - | |
| 638 | - /** | |
| 639 | - * Tells if AO should try to avoid 404's by creating fallback filesize | |
| 640 | - * and create a php 404 handler and tell .htaccess to redirect to said handler | |
| 641 | - * and hook into WordPress to redirect 404 to said handler as well. NGINX users | |
| 642 | - * are smart enough to get this working, no? ;-) | |
| 643 | - * | |
| 644 | - * Return bool | |
| 645 | - */ | |
| 646 | - public static function do_fallback() { | |
| 647 | - static $_do_fallback = null; | |
| 648 | - | |
| 649 | - if ( null === $_do_fallback ) { | |
| 650 | - $_do_fallback = (bool) apply_filters( 'autoptimize_filter_cache_do_fallback', autoptimizeOptionWrapper::get_option( 'autoptimize_cache_fallback', '' ) ); | |
| 651 | - } | |
| 652 | - | |
| 653 | - return $_do_fallback; | |
| 654 | - } | |
| 655 | - | |
| 656 | - /** | |
| 657 | - * Hooks into template_redirect, will act on 404-ing requests for | |
| 658 | - * Autoptimized files and redirects to the fallback CSS/ JS if available | |
| 659 | - * and 410'ing ("Gone") if fallback not available. | |
| 660 | - */ | |
| 661 | - public static function wordpress_notfound_fallback() { | |
| 662 | - $original_request = strtok( $_SERVER['REQUEST_URI'], '?' ); | |
| 663 | - if ( strpos( $original_request, wp_basename( WP_CONTENT_DIR ) . AUTOPTIMIZE_CACHE_CHILD_DIR ) !== false && is_404() ) { | |
| 664 | - // make sure this is not considered a 404. | |
| 665 | - global $wp_query; | |
| 666 | - $wp_query->is_404 = false; | |
| 667 | - | |
| 668 | - // set fallback path. | |
| 669 | - $js_or_css = pathinfo( $original_request, PATHINFO_EXTENSION ); | |
| 670 | - $fallback_path = AUTOPTIMIZE_CACHE_DIR . $js_or_css . '/autoptimize_fallback.' . $js_or_css; | |
| 671 | - | |
| 672 | - // set fallback URL. | |
| 673 | - $fallback_target = preg_replace( '/(.*)_(?:[a-z0-9]{32})\.(js|css)$/', '${1}_fallback.${2}', $original_request ); | |
| 674 | - | |
| 675 | - // redirect to fallback if possible. | |
| 676 | - if ( $original_request !== $fallback_target && file_exists( $fallback_path ) ) { | |
| 677 | - // redirect to fallback. | |
| 678 | - wp_redirect( $fallback_target, 302 ); | |
| 679 | - } else { | |
| 680 | - // return HTTP 410 (gone) reponse. | |
| 681 | - status_header( 410 ); | |
| 682 | - } | |
| 683 | - } | |
| 684 | - } | |
| 685 | - | |
| 686 | - /** | |
| 687 | - * Checks if cache dirs exist and create if not. | |
| 688 | - * Returns false if not succesful. | |
| 689 | - * | |
| 690 | - * @return bool | |
| 691 | - */ | |
| 692 | - public static function check_and_create_dirs() { | |
| 693 | - if ( ! defined( 'AUTOPTIMIZE_CACHE_DIR' ) ) { | |
| 694 | - // We didn't set a cache. | |
| 695 | - return false; | |
| 696 | - } | |
| 697 | - | |
| 698 | - foreach ( array( '', 'js', 'css' ) as $dir ) { | |
| 699 | - if ( ! self::check_cache_dir( AUTOPTIMIZE_CACHE_DIR . $dir ) ) { | |
| 700 | - return false; | |
| 701 | - } | |
| 702 | - } | |
| 703 | - return true; | |
| 704 | - } | |
| 705 | - | |
| 706 | - /** | |
| 707 | - * Ensures the specified `$dir` exists and is writeable. | |
| 708 | - * Returns false if that's not the case. | |
| 709 | - * | |
| 710 | - * @param string $dir Directory to check/create. | |
| 711 | - * | |
| 712 | - * @return bool | |
| 713 | - */ | |
| 714 | - protected static function check_cache_dir( $dir ) | |
| 715 | - { | |
| 716 | - // Try creating the dir if it doesn't exist. | |
| 717 | - if ( ! file_exists( $dir ) ) { | |
| 718 | - @mkdir( $dir, 0775, true ); // @codingStandardsIgnoreLine | |
| 719 | - if ( ! file_exists( $dir ) ) { | |
| 720 | - return false; | |
| 721 | - } | |
| 722 | - } | |
| 723 | - | |
| 724 | - // If we still cannot write, bail. | |
| 725 | - if ( ! is_writable( $dir ) ) { | |
| 726 | - return false; | |
| 727 | - } | |
| 728 | - | |
| 729 | - // Create an index.html in there to avoid prying eyes! | |
| 730 | - $idx_file = rtrim( $dir, '/\\' ) . '/index.html'; | |
| 731 | - if ( ! is_file( $idx_file ) ) { | |
| 732 | - @file_put_contents( $idx_file, '<html><head><meta name="robots" content="noindex, nofollow"></head><body>Generated by <a href="http://wordpress.org/extend/plugins/autoptimize/" rel="nofollow">Autoptimize</a></body></html>' ); // @codingStandardsIgnoreLine | |
| 733 | - } | |
| 734 | - | |
| 735 | - return true; | |
| 736 | - } | |
| 737 | - | |
| 738 | - /** | |
| 739 | - * Flushes as many page cache plugin's caches as possible. | |
| 740 | - * | |
| 741 | - * @return void | |
| 742 | - */ | |
| 743 | - // @codingStandardsIgnoreStart | |
| 744 | - public static function flushPageCache() | |
| 745 | - { | |
| 746 | - if ( function_exists( 'wp_cache_clear_cache' ) ) { | |
| 747 | - if ( is_multisite() ) { | |
| 748 | - $blog_id = get_current_blog_id(); | |
| 749 | - wp_cache_clear_cache( $blog_id ); | |
| 750 | - } else { | |
| 751 | - wp_cache_clear_cache(); | |
| 752 | - } | |
| 753 | - } elseif ( has_action( 'cachify_flush_cache' ) ) { | |
| 754 | - do_action( 'cachify_flush_cache' ); | |
| 755 | - } elseif ( function_exists( 'w3tc_pgcache_flush' ) ) { | |
| 756 | - w3tc_pgcache_flush(); | |
| 757 | - } elseif ( function_exists( 'wp_fast_cache_bulk_delete_all' ) ) { | |
| 758 | - wp_fast_cache_bulk_delete_all(); | |
| 759 | - } elseif ( class_exists( 'WpFastestCache' ) ) { | |
| 760 | - $wpfc = new WpFastestCache(); | |
| 761 | - $wpfc->deleteCache(); | |
| 762 | - } elseif ( class_exists( 'c_ws_plugin__qcache_purging_routines' ) ) { | |
| 763 | - c_ws_plugin__qcache_purging_routines::purge_cache_dir(); // quick cache | |
| 764 | - } elseif ( class_exists( 'zencache' ) ) { | |
| 765 | - zencache::clear(); | |
| 766 | - } elseif ( class_exists( 'comet_cache' ) ) { | |
| 767 | - comet_cache::clear(); | |
| 768 | - } elseif ( class_exists( 'WpeCommon' ) ) { | |
| 769 | - // WPEngine cache purge/flush methods to call by default | |
| 770 | - $wpe_methods = array( | |
| 771 | - 'purge_varnish_cache', | |
| 772 | - ); | |
| 773 | - | |
| 774 | - // More agressive clear/flush/purge behind a filter | |
| 775 | - if ( apply_filters( 'autoptimize_flush_wpengine_aggressive', false ) ) { | |
| 776 | - $wpe_methods = array_merge( $wpe_methods, array( 'purge_memcached', 'clear_maxcdn_cache' ) ); | |
| 777 | - } | |
| 778 | - | |
| 779 | - // Filtering the entire list of WpeCommon methods to be called (for advanced usage + easier testing) | |
| 780 | - $wpe_methods = apply_filters( 'autoptimize_flush_wpengine_methods', $wpe_methods ); | |
| 781 | - | |
| 782 | - foreach ( $wpe_methods as $wpe_method ) { | |
| 783 | - if ( method_exists( 'WpeCommon', $wpe_method ) ) { | |
| 784 | - WpeCommon::$wpe_method(); | |
| 785 | - } | |
| 786 | - } | |
| 787 | - } elseif ( function_exists( 'sg_cachepress_purge_cache' ) ) { | |
| 788 | - sg_cachepress_purge_cache(); | |
| 789 | - } elseif ( array_key_exists( 'KINSTA_CACHE_ZONE', $_SERVER ) ) { | |
| 790 | - $_kinsta_clear_cache_url = 'https://localhost/kinsta-clear-cache-all'; | |
| 791 | - $_kinsta_response = wp_remote_get( | |
| 792 | - $_kinsta_clear_cache_url, | |
| 793 | - array( | |
| 794 | - 'sslverify' => false, | |
| 795 | - 'timeout' => 5, | |
| 796 | - ) | |
| 797 | - ); | |
| 798 | - } elseif ( defined('NGINX_HELPER_BASENAME') ) { | |
| 799 | - do_action( 'rt_nginx_helper_purge_all' ); | |
| 800 | - } elseif ( file_exists( WP_CONTENT_DIR . '/wp-cache-config.php' ) && function_exists( 'prune_super_cache' ) ) { | |
| 801 | - // fallback for WP-Super-Cache | |
| 802 | - global $cache_path; | |
| 803 | - if ( is_multisite() ) { | |
| 804 | - $blog_id = get_current_blog_id(); | |
| 805 | - prune_super_cache( get_supercache_dir( $blog_id ), true ); | |
| 806 | - prune_super_cache( $cache_path . 'blogs/', true ); | |
| 807 | - } else { | |
| 808 | - prune_super_cache( $cache_path . 'supercache/', true ); | |
| 809 | - prune_super_cache( $cache_path, true ); | |
| 810 | - } | |
| 811 | - } | |
| 812 | - } | |
| 813 | - // @codingStandardsIgnoreEnd | |
| 5 | + private $filename; | |
| 6 | + private $mime; | |
| 7 | + private $cachedir; | |
| 8 | + | |
| 9 | + public function __construct($cachedir,$md5) | |
| 10 | + { | |
| 11 | + $this->cachedir = $cachedir; | |
| 12 | + $this->filename = 'autoptimize_'.$md5.'.php'; | |
| 13 | + } | |
| 14 | + | |
| 15 | + public function check() | |
| 16 | + { | |
| 17 | + if(!file_exists($this->cachedir.$this->filename)) | |
| 18 | + { | |
| 19 | + //No cached file, sorry | |
| 20 | + return false; | |
| 21 | + } | |
| 22 | + //Cache exists! | |
| 23 | + return true; | |
| 24 | + } | |
| 25 | + | |
| 26 | + public function cache($code,$mime) | |
| 27 | + { | |
| 28 | + $phpcode = file_get_contents(WP_PLUGIN_DIR.'/autoptimize/config/default.php'); | |
| 29 | + $phpcode = str_replace(array('%%CONTENT%%','exit;'),array($mime,''),$phpcode); | |
| 30 | + file_put_contents($this->cachedir.$this->filename,$phpcode); | |
| 31 | + file_put_contents($this->cachedir.$this->filename.'.deflate',gzencode($code,9,FORCE_DEFLATE)); | |
| 32 | + file_put_contents($this->cachedir.$this->filename.'.gzip',gzencode($code,9,FORCE_GZIP)); | |
| 33 | + file_put_contents($this->cachedir.$this->filename.'.none',$code); | |
| 34 | + } | |
| 35 | + | |
| 36 | + public function getname() | |
| 37 | + { | |
| 38 | + return $this->filename; | |
| 39 | + } | |
| 814 | 40 | } |
