| 1 |
<?php |
| 2 |
|
| 3 |
namespace Upress\EzCache; |
| 4 |
|
| 5 |
use MatthiasMullie\Minify\CSS; |
| 6 |
use MatthiasMullie\Minify\JS; |
| 7 |
use RecursiveDirectoryIterator; |
| 8 |
use RecursiveIteratorIterator; |
| 9 |
use RegexIterator; |
| 10 |
use UnexpectedValueException; |
| 11 |
use Upress\EzCache\BackgroundProcesses\ConvertWebpProcess; |
| 12 |
use Upress\EzCache\FileOptimizer\CombineGoogleFonts; |
| 13 |
use Upress\EzCache\FileOptimizer\CssMinifier; |
| 14 |
use Upress\EzCache\FileOptimizer\CssCombiner; |
| 15 |
use Upress\EzCache\FileOptimizer\JsMinifier; |
| 16 |
use Upress\EzCache\FileOptimizer\JsCombiner; |
| 17 |
use Upress\EzCache\FileOptimizer\WebpConverter; |
| 18 |
use Upress\EzCache\ThirdParty\Minify_HTML; |
| 19 |
use Upress\EzCache\Utilities\Logger; |
| 20 |
use Upress\EzCache\PremiumFeatures; |
| 21 |
|
| 22 |
class Cache { |
| 23 |
protected static $instance; |
| 24 |
protected $settings; |
| 25 |
protected $cache_start_time; |
| 26 |
protected $webp_processor; |
| 27 |
protected $root_cache_dir = WP_CONTENT_DIR . '/cache/ezcache/'; |
| 28 |
|
| 29 |
public static function instance() { |
| 30 |
if ( ! self::$instance ) { |
| 31 |
self::$instance = new self(); |
| 32 |
} |
| 33 |
|
| 34 |
return self::$instance; |
| 35 |
} |
| 36 |
|
| 37 |
private function __construct() { |
| 38 |
$this->settings = Settings::get_settings(); |
| 39 |
$this->webp_processor = new ConvertWebpProcess(); |
| 40 |
$this->cache_start_time = microtime( true ); |
| 41 |
} |
| 42 |
|
| 43 |
/** |
| 44 |
* @return string |
| 45 |
*/ |
| 46 |
public function get_default_cache_path() { |
| 47 |
$hostname = preg_replace( '/:.*$/', '', $this->get_http_host() ); |
| 48 |
|
| 49 |
return $this->root_cache_dir . $hostname . '/'; |
| 50 |
} |
| 51 |
|
| 52 |
/** |
| 53 |
* Get the HTTP host |
| 54 |
* |
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* @return string |
| 56 |
*/ |
| 57 |
public function get_http_host() { |
| 58 |
if ( ! empty( $_SERVER['HTTP_HOST'] ) ) { |
| 59 |
$host = function_exists( 'mb_strtolower' ) ? mb_strtolower( $_SERVER['HTTP_HOST'] ) : strtolower( $_SERVER['HTTP_HOST'] ); |
| 60 |
|
| 61 |
return htmlentities( $host ); |
| 62 |
} elseif ( function_exists( 'get_option' ) ) { |
| 63 |
return (string) parse_url( get_option( 'home' ), PHP_URL_HOST ); |
| 64 |
} |
| 65 |
|
| 66 |
return ''; |
| 67 |
} |
| 68 |
|
| 69 |
/** |
| 70 |
* Check if the current user has a log in cookie set (ie. the user is logged in) |
| 71 |
* @return bool |
| 72 |
*/ |
| 73 |
public function has_login_cookie() { |
| 74 |
$cookiehash = ''; |
| 75 |
if ( defined( 'COOKIEHASH' ) ) { |
| 76 |
$cookiehash = preg_quote( constant( 'COOKIEHASH' ), '|' ); |
| 77 |
} |
| 78 |
|
| 79 |
$regex = "|^wordpress_logged_in_{$cookiehash}|"; |
| 80 |
if ( defined( 'LOGGED_IN_COOKIE' ) ) { |
| 81 |
$regex = "|^" . preg_quote( constant( 'LOGGED_IN_COOKIE' ), '|' ) . '|'; |
| 82 |
} |
| 83 |
|
| 84 |
foreach ( $_COOKIE as $key => $value ) { |
| 85 |
if ( preg_match( $regex, $key ) ) { |
| 86 |
return true; |
| 87 |
} |
| 88 |
} |
| 89 |
|
| 90 |
return false; |
| 91 |
} |
| 92 |
|
| 93 |
/** |
| 94 |
* Check if a cookie is set to show that the current user has left comments and saved their data |
| 95 |
* @return bool |
| 96 |
*/ |
| 97 |
public function has_comment_author_cookie() { |
| 98 |
$cookiehash = ''; |
| 99 |
if ( defined( 'COOKIEHASH' ) ) { |
| 100 |
$cookiehash = preg_quote( constant( 'COOKIEHASH' ) ); |
| 101 |
} |
| 102 |
|
| 103 |
$regex = "/^wp-postpass_{$cookiehash}|^comment_author_{$cookiehash}/"; |
| 104 |
|
| 105 |
foreach ( $_COOKIE as $key => $value ) { |
| 106 |
if ( preg_match( $regex, $key ) ) { |
| 107 |
return true; |
| 108 |
} |
| 109 |
} |
| 110 |
|
| 111 |
return false; |
| 112 |
} |
| 113 |
|
| 114 |
/** |
| 115 |
* Check if the request supports gzip compression |
| 116 |
* |
| 117 |
* @return bool |
| 118 |
*/ |
| 119 |
public function gzip_accepted() { |
| 120 |
if ( defined( 'EZCACHE_DISABLE_GZIP' ) && EZCACHE_DISABLE_GZIP ) { |
| 121 |
return false; |
| 122 |
} |
| 123 |
|
| 124 |
return isset( $_SERVER['HTTP_ACCEPT_ENCODING'] ) && false !== strpos( $_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip' ); |
| 125 |
} |
| 126 |
|
| 127 |
/** |
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* Check if the request supports webp images |
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* |
| 130 |
* @return bool |
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*/ |
| 132 |
public function webp_accepted() { |
| 133 |
return isset( $_SERVER['HTTP_ACCEPT'] ) && false !== strpos( $_SERVER['HTTP_ACCEPT'], 'image/webp' ); |
| 134 |
} |
| 135 |
|
| 136 |
/** |
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* Check if the request comes from the backend |
| 138 |
* |
| 139 |
* @return bool |
| 140 |
*/ |
| 141 |
public function is_backend() { |
| 142 |
if ( is_admin() ) { |
| 143 |
return true; |
| 144 |
} |
| 145 |
|
| 146 |
$script = isset( $_SERVER['PHP_SELF'] ) ? basename( $_SERVER['PHP_SELF'] ) : ''; |
| 147 |
if ( $script !== 'index.php' ) { |
| 148 |
if ( in_array( $script, [ 'wp-login.php', 'xmlrpc.php', 'wp-cron.php' ] ) ) { |
| 149 |
return true; |
| 150 |
} elseif ( defined( 'DOING_CRON' ) && DOING_CRON ) { |
| 151 |
return true; |
| 152 |
} elseif ( PHP_SAPI == 'cli' || ( defined( 'WP_CLI' ) && WP_CLI ) ) { |
| 153 |
return true; |
| 154 |
} |
| 155 |
} |
| 156 |
|
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return false; |
| 158 |
} |
| 159 |
|
| 160 |
/** |
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* Return the relative URL based on the url provided or false if the url is not on this website |
| 162 |
* @param string $url |
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* |
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* @return string|bool |
| 165 |
*/ |
| 166 |
public function get_relative_url( $url ) { |
| 167 |
$site_url = site_url(); |
| 168 |
if ( false === strpos( $url, $site_url ) ) { |
| 169 |
if ( preg_match( '`^(https?:)?//([^/]+)(/.*)?$`i', $url, $matches ) ) { |
| 170 |
$url = isset( $matches[3] ) ? $matches[3] : ''; |
| 171 |
} |
| 172 |
} else { |
| 173 |
$url = str_replace( $site_url, '', $url ); |
| 174 |
if ( 0 !== strpos( $url, '/' ) ) { |
| 175 |
$url = '/' . $url; |
| 176 |
} |
| 177 |
} |
| 178 |
|
| 179 |
if ( preg_match( '/^https?:\/\//i', $url ) ) { |
| 180 |
return false; |
| 181 |
} |
| 182 |
|
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return $url; |
| 184 |
} |
| 185 |
|
| 186 |
/** |
| 187 |
* Should we serve the cached file |
| 188 |
* |
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* @return bool |
| 190 |
*/ |
| 191 |
public function should_serve_cached_data() { |
| 192 |
// Dev Mode — bypass cache entirely |
| 193 |
if ( self::is_dev_mode_active() ) { |
| 194 |
return false; |
| 195 |
} |
| 196 |
if ( defined( 'WP_CLI' ) && WP_CLI ) { |
| 197 |
return false; |
| 198 |
} |
| 199 |
if ( defined( 'DOING_CRON' ) && DOING_CRON ) { |
| 200 |
return false; |
| 201 |
} |
| 202 |
if ( defined( 'REST_REQUEST' ) && REST_REQUEST ) { |
| 203 |
return false; |
| 204 |
} |
| 205 |
if ( defined( 'JSON_REQUEST' ) && JSON_REQUEST ) { |
| 206 |
return false; |
| 207 |
} |
| 208 |
if ( defined( 'WC_API_REQUEST' ) && WC_API_REQUEST ) { |
| 209 |
return false; |
| 210 |
} |
| 211 |
if ( defined( 'WP_ADMIN' ) && WP_ADMIN ) { |
| 212 |
return false; |
| 213 |
} |
| 214 |
if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) { |
| 215 |
return false; |
| 216 |
} |
| 217 |
if ( defined( 'WP_USE_THEMES' ) && false === WP_USE_THEMES ) { |
| 218 |
return false; |
| 219 |
} |
| 220 |
|
| 221 |
if ( ! isset( $_SERVER['REQUEST_METHOD'] ) || ( isset( $_SERVER['REQUEST_METHOD'] ) && in_array( $_SERVER['REQUEST_METHOD'], [ |
| 222 |
'HEAD', |
| 223 |
'POST', |
| 224 |
'PUT', |
| 225 |
'PATCH', |
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'DELETE', |
| 227 |
] ) ) || isset( $_GET['customize_changeset_uuid'] ) || isset( $_POST['wp_customize'] ) ) { |
| 228 |
return false; |
| 229 |
} |
| 230 |
|
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$settings = $this->settings; |
| 232 |
|
| 233 |
if ( $settings->no_cache_known_users && $this->has_login_cookie() ) { |
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return false; |
| 235 |
} |
| 236 |
|
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if ( $settings->no_cache_comment_authors && $this->has_comment_author_cookie() ) { |
| 238 |
return false; |
| 239 |
} |
| 240 |
|
| 241 |
if ( $this->is_backend() ) { |
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return false; |
| 243 |
} |
| 244 |
|
| 245 |
// Don't cache with variables but the cache is enabled if the visitor comes from an RSS feed, a Facebook action or Google Adsense tracking |
| 246 |
if ( |
| 247 |
( |
| 248 |
$settings->no_cache_query_params |
| 249 |
&& ! empty( $_GET ) |
| 250 |
&& ! ( |
| 251 |
isset( $_GET['utm_source'], $_GET['utm_medium'], $_GET['utm_campaign'] ) |
| 252 |
|| isset( $_GET['utm_expid'] ) |
| 253 |
|| isset( $_GET['fb_action_ids'], $_GET['fb_action_types'], $_GET['fb_source'] ) |
| 254 |
|| isset( $_GET['gclid'] ) |
| 255 |
) |
| 256 |
) || ( |
| 257 |
isset( $_GET['permalink_name'] ) |
| 258 |
|| isset( $_GET['lp-variation-id'] ) |
| 259 |
|| isset( $_GET['lang'] ) |
| 260 |
|| isset( $_GET['s'] ) |
| 261 |
|| isset( $_GET['age-verified'] ) |
| 262 |
|| isset( $_GET['ao_noptimize'] ) |
| 263 |
|| isset( $_GET['usqp'] ) |
| 264 |
|| isset( $_GET['woo_ajax'] ) |
| 265 |
) |
| 266 |
) { |
| 267 |
|
| 268 |
return false; |
| 269 |
} |
| 270 |
|
| 271 |
// Don't cache pages where the rejected cookies are defined |
| 272 |
if ( ! empty( $settings->rejected_cookies ) ) { |
| 273 |
$rejected_cookies = preg_split( "/\\r\\n|\\r|\\n/u", trim( $settings->rejected_cookies ), - 1, PREG_SPLIT_NO_EMPTY ); |
| 274 |
$rejected_cookies = array_filter( $rejected_cookies ); |
| 275 |
|
| 276 |
if ( preg_match( '#(' . implode( '|', $rejected_cookies ) . ')#', var_export( $_COOKIE, true ) ) ) { |
| 277 |
return false; |
| 278 |
} |
| 279 |
} |
| 280 |
|
| 281 |
return true; |
| 282 |
} |
| 283 |
|
| 284 |
/** |
| 285 |
* Should we save the cache files. |
| 286 |
* Most of the checks here have to be run after the page was rendered as they require WordPress. |
| 287 |
* |
| 288 |
* @return bool |
| 289 |
*/ |
| 290 |
public function should_save_cache() { |
| 291 |
global $wp_query; |
| 292 |
|
| 293 |
if ( ! $this->should_serve_cached_data() ) { |
| 294 |
return false; |
| 295 |
} |
| 296 |
|
| 297 |
$settings = $this->settings; |
| 298 |
|
| 299 |
// check if we have any errors or otherwise settings preventing caching |
| 300 |
$error = error_get_last(); |
| 301 |
if ( null !== $error && ( $error['type'] & ( E_ERROR | E_CORE_ERROR | E_PARSE | E_COMPILE_ERROR | E_USER_ERROR ) ) ) { |
| 302 |
return false; |
| 303 |
} |
| 304 |
|
| 305 |
if ( function_exists( 'http_response_code' ) && http_response_code() > 300 ) { |
| 306 |
return false; |
| 307 |
} |
| 308 |
|
| 309 |
if ( is_404() ) { |
| 310 |
return false; |
| 311 |
} |
| 312 |
|
| 313 |
if ( $settings->bypass_cache->single && is_single() ) { |
| 314 |
return false; |
| 315 |
} |
| 316 |
if ( $settings->bypass_cache->pages && is_page() ) { |
| 317 |
return false; |
| 318 |
} |
| 319 |
if ( $settings->bypass_cache->frontpage && is_front_page() ) { |
| 320 |
return false; |
| 321 |
} |
| 322 |
if ( $settings->bypass_cache->home && is_home() ) { |
| 323 |
return false; |
| 324 |
} |
| 325 |
if ( $settings->bypass_cache->archives && is_archive() ) { |
| 326 |
return false; |
| 327 |
} |
| 328 |
if ( $settings->bypass_cache->tag && is_tag() ) { |
| 329 |
return false; |
| 330 |
} |
| 331 |
if ( $settings->bypass_cache->category && is_category() ) { |
| 332 |
return false; |
| 333 |
} |
| 334 |
if ( $settings->bypass_cache->feed && is_feed() ) { |
| 335 |
return false; |
| 336 |
} |
| 337 |
if ( $settings->bypass_cache->search && is_search() ) { |
| 338 |
return false; |
| 339 |
} |
| 340 |
if ( $settings->bypass_cache->author && is_author() ) { |
| 341 |
return false; |
| 342 |
} |
| 343 |
if ( function_exists( 'is_checkout' ) && is_checkout() ) { |
| 344 |
return false; |
| 345 |
} |
| 346 |
if ( function_exists( 'is_cart' ) && is_cart() ) { |
| 347 |
return false; |
| 348 |
} |
| 349 |
|
| 350 |
if ( is_null( $wp_query ) || is_robots() || get_query_var( 'sitemap' ) || get_query_var( 'xsl' ) || get_query_var( 'xml_sitemap' ) ) { |
| 351 |
return false; |
| 352 |
} |
| 353 |
|
| 354 |
if ( isset( $_GET['preview'] ) || isset( $_POST['wp_customize'] ) ) { |
| 355 |
return false; |
| 356 |
} |
| 357 |
|
| 358 |
if ( get_post_meta( get_the_ID(), '_ezcache_do_not_cache_post', true ) ) { |
| 359 |
return false; |
| 360 |
} |
| 361 |
|
| 362 |
// check useragent |
| 363 |
$rejected_useragents = preg_split( "/\\r\\n|\\r|\\n/u", trim( $settings->rejected_user_agent ), - 1, PREG_SPLIT_NO_EMPTY ); |
| 364 |
$rejected_useragents = array_filter( $rejected_useragents ); |
| 365 |
if ( ! empty( $_SERVER['HTTP_USER_AGENT'] ) ) { |
| 366 |
foreach ( $rejected_useragents as $ua ) { |
| 367 |
if ( empty( $ua ) ) { |
| 368 |
continue; |
| 369 |
} |
| 370 |
|
| 371 |
if ( false !== strpos( $_SERVER['HTTP_USER_AGENT'], trim( $ua ) ) ) { |
| 372 |
return false; |
| 373 |
} |
| 374 |
} |
| 375 |
} |
| 376 |
|
| 377 |
// check URL |
| 378 |
$rejected_uris = preg_split( "/\\r\\n|\\r|\\n/u", trim( $settings->rejected_uri ), - 1, PREG_SPLIT_NO_EMPTY ); |
| 379 |
$rejected_uris = array_filter( $rejected_uris ); |
| 380 |
$domain = untrailingslashit( home_url() ); |
| 381 |
if ( ! empty( $_SERVER['REQUEST_URI'] ) ) { |
| 382 |
foreach ( $rejected_uris as $url ) { |
| 383 |
$url = str_replace( $domain, '', $url ); |
| 384 |
$url = '/' . trim( $url, '/' ); |
| 385 |
$url = str_replace( [ '\/*', '*' ], [ '\/?.*?', '.*?' ], preg_quote( $url, '/' ) ); |
| 386 |
$url = str_replace( '\/\.*?', '\/.*?', $url ); |
| 387 |
if ( @preg_match( "/^{$url}\/?$/u", urldecode( $_SERVER['REQUEST_URI'] ) ) ) { |
| 388 |
return false; |
| 389 |
} |
| 390 |
} |
| 391 |
} |
| 392 |
|
| 393 |
return true; |
| 394 |
} |
| 395 |
|
| 396 |
/** |
| 397 |
* Get the mobile browser name |
| 398 |
* |
| 399 |
* @return string |
| 400 |
*/ |
| 401 |
public function detect_mobile() { |
| 402 |
if ( empty( $_SERVER['HTTP_USER_AGENT'] ) ) { |
| 403 |
return ''; |
| 404 |
} |
| 405 |
|
| 406 |
$mobile_browsers = apply_filters( 'ezcache_mobile_browsers', [ |
| 407 |
'2.0 MMP', |
| 408 |
'240x320', |
| 409 |
'400X240', |
| 410 |
'AvantGo', |
| 411 |
'BlackBerry', |
| 412 |
'Blazer', |
| 413 |
'Cellphone', |
| 414 |
'Danger', |
| 415 |
'DoCoMo', |
| 416 |
'Elaine/3.0', |
| 417 |
'EudoraWeb', |
| 418 |
'Googlebot-Mobile', |
| 419 |
'hiptop', |
| 420 |
'IEMobile', |
| 421 |
'KYOCERA/WX310K', |
| 422 |
'LG/U990', |
| 423 |
'MIDP-2.', |
| 424 |
'MMEF20', |
| 425 |
'MOT-V', |
| 426 |
'NetFront', |
| 427 |
'Newt', |
| 428 |
'Nintendo Wii', |
| 429 |
'Nitro', |
| 430 |
'Nokia', |
| 431 |
'Opera Mini', |
| 432 |
'Palm', |
| 433 |
'PlayStation Portable', |
| 434 |
'portalmmm', |
| 435 |
'Proxinet', |
| 436 |
'ProxiNet', |
| 437 |
'SHARP-TQ-GX10', |
| 438 |
'SHG-i900', |
| 439 |
'Small', |
| 440 |
'SonyEricsson', |
| 441 |
'Symbian OS', |
| 442 |
'SymbianOS', |
| 443 |
'TS21i-10', |
| 444 |
'UP.Browser', |
| 445 |
'UP.Link', |
| 446 |
'webOS', |
| 447 |
'Windows CE', |
| 448 |
'WinWAP', |
| 449 |
'YahooSeeker/M1A1-R2D2', |
| 450 |
'iPhone', |
| 451 |
'iPod', |
| 452 |
'iPad', |
| 453 |
'Android', |
| 454 |
'BlackBerry9530', |
| 455 |
'LG-TU915 Obigo', |
| 456 |
'LGE VX', |
| 457 |
'webOS', |
| 458 |
'Nokia5800', |
| 459 |
] ); |
| 460 |
$user_agent = strtolower( $_SERVER['HTTP_USER_AGENT'] ); |
| 461 |
foreach ( $mobile_browsers as $browser ) { |
| 462 |
if ( strstr( $user_agent, trim( strtolower( $browser ) ) ) ) { |
| 463 |
return $user_agent; |
| 464 |
} |
| 465 |
} |
| 466 |
|
| 467 |
if ( isset( $_SERVER['HTTP_X_WAP_PROFILE'] ) ) { |
| 468 |
return $_SERVER['HTTP_X_WAP_PROFILE']; |
| 469 |
} |
| 470 |
|
| 471 |
if ( isset( $_SERVER['HTTP_PROFILE'] ) ) { |
| 472 |
return $_SERVER['HTTP_PROFILE']; |
| 473 |
} |
| 474 |
|
| 475 |
$browser_prefixes = apply_filters( 'ezcache_mobile_browser_prefixes', [ |
| 476 |
'w3c', |
| 477 |
'w3c-', |
| 478 |
'acs-', |
| 479 |
'alav', |
| 480 |
'alca', |
| 481 |
'amoi', |
| 482 |
'audi', |
| 483 |
'avan', |
| 484 |
'benq', |
| 485 |
'bird', |
| 486 |
'blac', |
| 487 |
'blaz', |
| 488 |
'brew', |
| 489 |
'cell', |
| 490 |
'cldc', |
| 491 |
'cmd-', |
| 492 |
'dang', |
| 493 |
'doco', |
| 494 |
'eric', |
| 495 |
'hipt', |
| 496 |
'htc_', |
| 497 |
'inno', |
| 498 |
'ipaq', |
| 499 |
'ipod', |
| 500 |
'jigs', |
| 501 |
'kddi', |
| 502 |
'keji', |
| 503 |
'leno', |
| 504 |
'lg-c', |
| 505 |
'lg-d', |
| 506 |
'lg-g', |
| 507 |
'lge-', |
| 508 |
'lg/u', |
| 509 |
'maui', |
| 510 |
'maxo', |
| 511 |
'midp', |
| 512 |
'mits', |
| 513 |
'mmef', |
| 514 |
'mobi', |
| 515 |
'mot-', |
| 516 |
'moto', |
| 517 |
'mwbp', |
| 518 |
'nec-', |
| 519 |
'newt', |
| 520 |
'noki', |
| 521 |
'palm', |
| 522 |
'pana', |
| 523 |
'pant', |
| 524 |
'phil', |
| 525 |
'play', |
| 526 |
'port', |
| 527 |
'prox', |
| 528 |
'qwap', |
| 529 |
'sage', |
| 530 |
'sams', |
| 531 |
'sany', |
| 532 |
'sch-', |
| 533 |
'sec-', |
| 534 |
'send', |
| 535 |
'seri', |
| 536 |
'sgh-', |
| 537 |
'shar', |
| 538 |
'sie-', |
| 539 |
'siem', |
| 540 |
'smal', |
| 541 |
'smar', |
| 542 |
'sony', |
| 543 |
'sph-', |
| 544 |
'symb', |
| 545 |
't-mo', |
| 546 |
'teli', |
| 547 |
'tim-', |
| 548 |
'tosh', |
| 549 |
'tsm-', |
| 550 |
'upg1', |
| 551 |
'upsi', |
| 552 |
'vk-v', |
| 553 |
'voda', |
| 554 |
'wap-', |
| 555 |
'wapa', |
| 556 |
'wapi', |
| 557 |
'wapp', |
| 558 |
'wapr', |
| 559 |
'webc', |
| 560 |
'winw', |
| 561 |
'winw', |
| 562 |
'xda', |
| 563 |
'xda-', |
| 564 |
] ); |
| 565 |
foreach ( $browser_prefixes as $prefix ) { |
| 566 |
if ( substr( $user_agent, 0, 4 ) == $prefix ) { |
| 567 |
return $prefix; |
| 568 |
} |
| 569 |
} |
| 570 |
|
| 571 |
$accept = isset( $_SERVER['HTTP_ACCEPT'] ) ? strtolower( $_SERVER['HTTP_ACCEPT'] ) : ''; |
| 572 |
if ( strpos( $accept, 'wap' ) !== false ) { |
| 573 |
return 'wap'; |
| 574 |
} |
| 575 |
|
| 576 |
if ( isset( $_SERVER['ALL_HTTP'] ) && false !== strpos( strtolower( $_SERVER['ALL_HTTP'] ), 'operamini' ) ) { |
| 577 |
return 'operamini'; |
| 578 |
} |
| 579 |
|
| 580 |
return ''; |
| 581 |
} |
| 582 |
|
| 583 |
/** |
| 584 |
* Search & replace in a string |
| 585 |
* |
| 586 |
* @param string|string[] $search |
| 587 |
* @param string $subject |
| 588 |
* |
| 589 |
* @return string |
| 590 |
*/ |
| 591 |
public function deep_replace( $search, $subject ) { |
| 592 |
$subject = (string) $subject; |
| 593 |
|
| 594 |
$count = 1; |
| 595 |
while ( $count ) { |
| 596 |
$subject = str_replace( $search, '', $subject, $count ); |
| 597 |
} |
| 598 |
|
| 599 |
return $subject; |
| 600 |
} |
| 601 |
|
| 602 |
/** |
| 603 |
* Get the cache directory URL for the current post |
| 604 |
* |
| 605 |
* @param int $post_id |
| 606 |
* |
| 607 |
* @param null|string $url |
| 608 |
* |
| 609 |
* @return mixed|string |
| 610 |
*/ |
| 611 |
public function get_current_url_cache_dir( $post_id = 0, $url = null ) { |
| 612 |
static $url_cache_dir = []; |
| 613 |
|
| 614 |
if ( isset( $url_cache_dir[ $post_id ] ) ) { |
| 615 |
return $url_cache_dir[ $post_id ]; |
| 616 |
} |
| 617 |
|
| 618 |
$uri = strtolower( $url ? ( '/' . ltrim( $url, '/' ) ) : $_SERVER['REQUEST_URI'] ); |
| 619 |
|
| 620 |
$DONOTREMEMBER = 0; |
| 621 |
if ( 0 !== $post_id ) { |
| 622 |
$site_url = site_url(); |
| 623 |
$permalink = get_permalink( $post_id ); |
| 624 |
if ( false === strpos( $permalink, $site_url ) ) { |
| 625 |
$DONOTREMEMBER = 1; |
| 626 |
if ( preg_match( '`^(https?:)?//([^/]+)(/.*)?$`i', $permalink, $matches ) ) { |
| 627 |
$uri = isset( $matches[3] ) ? $matches[3] : ''; |
| 628 |
} elseif ( preg_match( '`^/([^/]+)(/.*)?$`i', $permalink, $matches ) ) { |
| 629 |
$uri = $permalink; |
| 630 |
} else { |
| 631 |
$uri = ''; |
| 632 |
} |
| 633 |
} else { |
| 634 |
$uri = str_replace( $site_url, '', $permalink ); |
| 635 |
if ( 0 !== strpos( $uri, '/' ) ) { |
| 636 |
$uri = '/' . $uri; |
| 637 |
} |
| 638 |
} |
| 639 |
} |
| 640 |
|
| 641 |
$uri = $this->deep_replace( |
| 642 |
[ |
| 643 |
'..', |
| 644 |
'\\', |
| 645 |
'index.php', |
| 646 |
], |
| 647 |
preg_replace( |
| 648 |
'/[ <>\'\"\r\n\t()]/', |
| 649 |
'', |
| 650 |
preg_replace( "/(\?.*)?(#.*)?$/", '', $uri ) |
| 651 |
) |
| 652 |
); |
| 653 |
|
| 654 |
$uri = md5( $uri ); |
| 655 |
$dir = str_replace( '..', '', str_replace( '//', '/', $uri . '/' ) ); |
| 656 |
|
| 657 |
if ( $DONOTREMEMBER == 0 ) { |
| 658 |
$url_cache_dir[ $post_id ] = $dir; |
| 659 |
} |
| 660 |
|
| 661 |
return $dir; |
| 662 |
} |
| 663 |
|
| 664 |
/** |
| 665 |
* Get the cache directory path |
| 666 |
* |
| 667 |
* @param int $postid |
| 668 |
* |
| 669 |
* @param null|string $url |
| 670 |
* |
| 671 |
* @return string |
| 672 |
*/ |
| 673 |
public function get_real_cache_dir( $postid = 0, $url = null ) { |
| 674 |
return $this->get_default_cache_path() . $this->get_current_url_cache_dir( $postid, $url ); |
| 675 |
} |
| 676 |
|
| 677 |
/** |
| 678 |
* Get the full cache file path |
| 679 |
* |
| 680 |
* @param int $postid |
| 681 |
* |
| 682 |
* @param null|string $url |
| 683 |
* |
| 684 |
* @return string |
| 685 |
*/ |
| 686 |
public function get_cache_file_path( $postid = 0, $url = null ) { |
| 687 |
return $this->get_real_cache_dir( $postid, $url ) . $this->get_cache_filename(); |
| 688 |
} |
| 689 |
|
| 690 |
/** |
| 691 |
* Get the filename for the cached file |
| 692 |
* |
| 693 |
* @return string |
| 694 |
*/ |
| 695 |
public function get_cache_filename() { |
| 696 |
$settings = $this->settings; |
| 697 |
|
| 698 |
// Add support for https and http caching |
| 699 |
// also supports https requests coming from an nginx reverse proxy |
| 700 |
$is_https = ( ( isset( $_SERVER['HTTPS'] ) && 'on' == strtolower( $_SERVER['HTTPS'] ) ) || ( isset( $_SERVER['HTTP_X_FORWARDED_PROTO'] ) && 'https' == strtolower( $_SERVER['HTTP_X_FORWARDED_PROTO'] ) ) ); |
| 701 |
$extra_str = $is_https ? '-https' : ''; |
| 702 |
|
| 703 |
if ( $settings->separate_mobile_cache ) { |
| 704 |
$mobile_ua = $this->detect_mobile(); |
| 705 |
if ( ! empty( $mobile_ua ) ) { |
| 706 |
$extra_str .= '-mobile'; |
| 707 |
} |
| 708 |
} |
| 709 |
|
| 710 |
if ( $settings->enable_webp_support && $this->webp_accepted() ) { |
| 711 |
$extra_str .= '-webp'; |
| 712 |
} |
| 713 |
|
| 714 |
$filename = 'index'; |
| 715 |
if ( ! empty( $_SERVER['QUERY_STRING'] ) ) { |
| 716 |
$filename = md5( $_SERVER['QUERY_STRING'] ); |
| 717 |
} |
| 718 |
|
| 719 |
return $filename . $extra_str . '.html'; |
| 720 |
} |
| 721 |
|
| 722 |
/** |
| 723 |
* Check if we have a cached file and serve it |
| 724 |
*/ |
| 725 |
public function maybe_serve_cached_data() { |
| 726 |
if ( ! $this->should_serve_cached_data() ) { |
| 727 |
return; |
| 728 |
} |
| 729 |
|
| 730 |
// ── Redis Full-Page Cache fast path ──────────────────── |
| 731 |
// When enabled, try Redis first. A hit is sub-millisecond and skips |
| 732 |
// the disk read entirely. On miss we fall through to the disk path |
| 733 |
// below (and the response handler in maybe_write_cache_file will |
| 734 |
// populate Redis for next time). |
| 735 |
if ( |
| 736 |
! empty( $this->settings->enable_redis_fullpage ) |
| 737 |
&& class_exists( '\\Upress\\EzCache\\RedisObjectCache' ) |
| 738 |
) { |
| 739 |
$current_url = ( is_ssl() ? 'https://' : 'http://' ) |
| 740 |
. ( $_SERVER['HTTP_HOST'] ?? '' ) |
| 741 |
. ( $_SERVER['REQUEST_URI'] ?? '/' ); |
| 742 |
$cached_html = \Upress\EzCache\RedisObjectCache::get_page( $current_url ); |
| 743 |
if ( false !== $cached_html && '' !== $cached_html ) { |
| 744 |
header( 'X-Cached-With: ezCache (Redis)' ); |
| 745 |
header( 'Vary: Accept-Encoding, Cookie' ); |
| 746 |
echo $cached_html; |
| 747 |
exit; |
| 748 |
} |
| 749 |
} |
| 750 |
|
| 751 |
$cache_file = $this->get_cache_file_path(); |
| 752 |
$gzip_accepted = $this->gzip_accepted(); |
| 753 |
|
| 754 |
$cache_file = $cache_file . '.gz'; |
| 755 |
$filesize = file_exists( $cache_file ) ? @filesize( $cache_file ) : false; |
| 756 |
|
| 757 |
if ( ! $filesize ) { |
| 758 |
// the file is empty, we have nothing to serve |
| 759 |
return; |
| 760 |
} |
| 761 |
|
| 762 |
header( "X-Cached-With: ezCache" ); |
| 763 |
header( "Vary: Accept-Encoding, Cookie" ); |
| 764 |
header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s', filemtime( $cache_file ) ) . ' GMT' ); |
| 765 |
|
| 766 |
// Getting If-Modified-Since headers sent by the client. |
| 767 |
if ( function_exists( 'apache_request_headers' ) ) { |
| 768 |
$headers = apache_request_headers(); |
| 769 |
$http_if_modified_since = ( isset( $headers['If-Modified-Since'] ) ) ? $headers['If-Modified-Since'] : ''; |
| 770 |
} else { |
| 771 |
$http_if_modified_since = ( isset( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ) ) ? $_SERVER['HTTP_IF_MODIFIED_SINCE'] : ''; |
| 772 |
} |
| 773 |
|
| 774 |
// Checking if the client is validating his cache and if it is current. |
| 775 |
if ( $http_if_modified_since && ( strtotime( $http_if_modified_since ) === @filemtime( $cache_file ) ) ) { |
| 776 |
// Client's cache is current, so we just respond '304 Not Modified'. |
| 777 |
header( $_SERVER['SERVER_PROTOCOL'] . ' 304 Not Modified', true, 304 ); |
| 778 |
exit; |
| 779 |
} |
| 780 |
|
| 781 |
// Serve the cache if file isn't store in the client browser cache. |
| 782 |
// if the browser does not support gzip read the file and output it without gzip encoding |
| 783 |
if ( ! $gzip_accepted ) { |
| 784 |
readgzfile( $cache_file ); |
| 785 |
exit; |
| 786 |
} |
| 787 |
|
| 788 |
// otherwise output the gzipped file as-is |
| 789 |
header( "Content-Length: {$filesize}" ); |
| 790 |
header( "Content-Encoding: gzip" ); |
| 791 |
readfile( $cache_file ); |
| 792 |
exit; |
| 793 |
} |
| 794 |
|
| 795 |
public function do_frontend_optimizations() { |
| 796 |
if ( ! $this->should_serve_cached_data() ) { |
| 797 |
return; |
| 798 |
} |
| 799 |
|
| 800 |
$settings = $this->settings; |
| 801 |
|
| 802 |
if ( isset( $settings->disable_wp_emoji ) && $settings->disable_wp_emoji ) { |
| 803 |
add_action( 'init', function () { |
| 804 |
remove_action( 'admin_print_styles', 'print_emoji_styles' ); |
| 805 |
remove_action( 'wp_head', 'print_emoji_detection_script', 7 ); |
| 806 |
remove_action( 'admin_print_scripts', 'print_emoji_detection_script' ); |
| 807 |
remove_action( 'wp_print_styles', 'print_emoji_styles' ); |
| 808 |
remove_filter( 'wp_mail', 'wp_staticize_emoji_for_email' ); |
| 809 |
remove_filter( 'the_content_feed', 'wp_staticize_emoji' ); |
| 810 |
remove_filter( 'comment_text_rss', 'wp_staticize_emoji' ); |
| 811 |
add_filter( 'emoji_svg_url', '__return_false' ); |
| 812 |
}, 999 ); |
| 813 |
} |
| 814 |
|
| 815 |
|
| 816 |
if ( ! empty( $settings->critical_css ) ) { |
| 817 |
add_action( 'wp_enqueue_scripts', [ $this, 'enqueue_critical_css' ], PHP_INT_MAX ); |
| 818 |
} |
| 819 |
} |
| 820 |
|
| 821 |
public function enqueue_critical_css() { |
| 822 |
wp_register_style( 'ezcache-critical-css', false ); |
| 823 |
wp_enqueue_style( 'ezcache-critical-css' ); |
| 824 |
wp_add_inline_style( 'ezcache-critical-css', $this->settings->critical_css ); |
| 825 |
} |
| 826 |
|
| 827 |
/** |
| 828 |
* Write cache file if we need to |
| 829 |
* @noinspection PhpUnused |
| 830 |
*/ |
| 831 |
public function maybe_write_cache_file() { |
| 832 |
if ( ! $this->should_serve_cached_data() ) { |
| 833 |
return; |
| 834 |
} |
| 835 |
|
| 836 |
ob_start( [ $this, 'optimize_and_write_cache_file' ] ); |
| 837 |
} |
| 838 |
|
| 839 |
/** |
| 840 |
* Optimize output and write the buffer to the cache file |
| 841 |
* |
| 842 |
* @param string $buffer |
| 843 |
* |
| 844 |
* @return string |
| 845 |
*/ |
| 846 |
public function optimize_and_write_cache_file( $buffer ) { |
| 847 |
global $wpdb; |
| 848 |
|
| 849 |
// we need these check to run after WordPress is finished preparing the page |
| 850 |
if ( ! $this->should_save_cache() ) { |
| 851 |
return $buffer; |
| 852 |
} |
| 853 |
|
| 854 |
$real_cache_dir = $this->get_real_cache_dir(); |
| 855 |
$cache_file = $this->get_cache_file_path() . '.gz'; |
| 856 |
$asset_cache_dir = $this->get_default_cache_path() . 'min/'; |
| 857 |
$asset_cache_url = trailingslashit( trailingslashit( get_site_url() ) . trim( str_replace( dirname( WP_CONTENT_DIR ), '', $asset_cache_dir ), '/' ) ); |
| 858 |
$settings = $this->settings; |
| 859 |
|
| 860 |
if ( $settings->optimize_google_fonts ) { |
| 861 |
$optimizer = new CombineGoogleFonts(); |
| 862 |
$buffer = $optimizer->optimize( $buffer ); |
| 863 |
} |
| 864 |
|
| 865 |
if ( $settings->minify_css ) { |
| 866 |
if ( $settings->combine_css ) { |
| 867 |
$optimizer = new CssCombiner( $asset_cache_dir, $asset_cache_url, $settings->combine_css_footer ); |
| 868 |
} else { |
| 869 |
$optimizer = new CssMinifier( $asset_cache_dir, $asset_cache_url ); |
| 870 |
} |
| 871 |
|
| 872 |
$buffer = $optimizer->optimize( $buffer ); |
| 873 |
} |
| 874 |
|
| 875 |
if ( $settings->minify_js ) { |
| 876 |
if ( $settings->combine_head_js ) { |
| 877 |
$optimizer = new JsCombiner( $asset_cache_dir, $asset_cache_url, 'head', $settings->combine_head_inline_js ); |
| 878 |
$buffer = $optimizer->optimize( $buffer ); |
| 879 |
} |
| 880 |
|
| 881 |
if ( $settings->combine_body_js ) { |
| 882 |
$optimizer = new JsCombiner( $asset_cache_dir, $asset_cache_url, 'body', $settings->combine_body_inline_js ); |
| 883 |
$buffer = $optimizer->optimize( $buffer ); |
| 884 |
} |
| 885 |
|
| 886 |
if ( ! $settings->combine_head_js && ! $settings->combine_body_js ) { |
| 887 |
$optimizer = new JsMinifier( $asset_cache_dir, $asset_cache_url ); |
| 888 |
$buffer = $optimizer->optimize( $buffer ); |
| 889 |
} |
| 890 |
} |
| 891 |
|
| 892 |
if ( $settings->minify_html ) { |
| 893 |
wp_raise_memory_limit( 'image' ); |
| 894 |
|
| 895 |
$buffer = Minify_HTML::minify( $buffer, [ |
| 896 |
'htmlCleanComments' => $settings->minify_html_comments, |
| 897 |
|
| 898 |
'cssMinifier' => function ( $css ) use ( $settings ) { |
| 899 |
if ( ! $settings->minify_inline_css ) { |
| 900 |
return $css; |
| 901 |
} |
| 902 |
|
| 903 |
$minifier = new CSS( $css ); |
| 904 |
$minifier->setMaxImportSize( 0 ); |
| 905 |
$minifier->setImportExtensions( [] ); |
| 906 |
|
| 907 |
return $minifier->minify(); |
| 908 |
}, |
| 909 |
|
| 910 |
'jsMinifier' => function ( $js ) use ( $settings ) { |
| 911 |
if ( ! $settings->minify_inline_js ) { |
| 912 |
return $js; |
| 913 |
} |
| 914 |
|
| 915 |
$minifier = new JS( $js ); |
| 916 |
|
| 917 |
return $minifier->minify(); |
| 918 |
}, |
| 919 |
] ); |
| 920 |
} |
| 921 |
|
| 922 |
if ( $settings->enable_webp_support && $this->webp_accepted() ) { |
| 923 |
$optimizer = new WebpConverter( $real_cache_dir, $cache_file, $this->webp_processor, $wpdb ); |
| 924 |
$buffer = $optimizer->optimize( $buffer ); |
| 925 |
} |
| 926 |
|
| 927 |
$buffer = trim( $buffer ); |
| 928 |
if ( empty( $buffer ) ) { |
| 929 |
Logger::log( 'ezCache will not save cache file for a blank page' ); |
| 930 |
|
| 931 |
return $buffer; |
| 932 |
} |
| 933 |
|
| 934 |
if ( ! apply_filters( 'wp_bost_hide_cache_time_comment', false ) ) { |
| 935 |
$total_time = number_format( microtime( true ) - $this->cache_start_time, 2 ); |
| 936 |
$cache_type = ( \Upress\EzCache\Settings::get_settings()->enable_redis_fullpage ?? false ) ? 'Redis' : 'Disk'; |
| 937 |
$buffer .= "\n<!-- Cached by ezCache | Full-Page Cache: {$cache_type} | Generated: " . date('Y-m-d H:i:s') . " | Time: {$total_time}s -->"; |
| 938 |
} |
| 939 |
|
| 940 |
$buffer = apply_filters( 'ezcache_before_save_cache', $buffer ); |
| 941 |
|
| 942 |
// ── Redis Full-Page Cache write ─────────────────────── |
| 943 |
// Mirror the cached HTML to Redis when the flag is on. TTL matches |
| 944 |
// the disk-cache lifetime so both backends expire in sync. |
| 945 |
if ( |
| 946 |
! empty( $settings->enable_redis_fullpage ) |
| 947 |
&& class_exists( '\\Upress\\EzCache\\RedisObjectCache' ) |
| 948 |
) { |
| 949 |
$current_url = ( is_ssl() ? 'https://' : 'http://' ) |
| 950 |
. ( $_SERVER['HTTP_HOST'] ?? '' ) |
| 951 |
. ( $_SERVER['REQUEST_URI'] ?? '/' ); |
| 952 |
$ttl = ! empty( $settings->cache_lifetime ) ? (int) $settings->cache_lifetime : 604800; |
| 953 |
\Upress\EzCache\RedisObjectCache::set_page( $current_url, $buffer, $ttl ); |
| 954 |
} |
| 955 |
|
| 956 |
if ( ! file_exists( $real_cache_dir ) ) { |
| 957 |
if ( ! @wp_mkdir_p( $real_cache_dir ) ) { |
| 958 |
Logger::log( 'ezCache could not create directory ' . $real_cache_dir ); |
| 959 |
|
| 960 |
return $buffer; |
| 961 |
} |
| 962 |
} |
| 963 |
|
| 964 |
// write gzipped file |
| 965 |
$handle = @fopen( $cache_file, 'w' ); |
| 966 |
|
| 967 |
if ( $handle && @flock( $handle, LOCK_EX ) ) { |
| 968 |
fwrite( $handle, gzencode( $buffer, 6, FORCE_GZIP ) ); |
| 969 |
flock( $handle, LOCK_UN ); |
| 970 |
} else { |
| 971 |
Logger::log( 'ezCache could not write to ' . str_replace( ABSPATH, '', $cache_file ) ); |
| 972 |
} |
| 973 |
|
| 974 |
if ( $handle ) { |
| 975 |
fclose( $handle ); |
| 976 |
} |
| 977 |
|
| 978 |
return $buffer; |
| 979 |
} |
| 980 |
|
| 981 |
/** |
| 982 |
* Delete a path recursively |
| 983 |
* |
| 984 |
* @param string $path |
| 985 |
*/ |
| 986 |
public function rmdir_recursive( $path ) { |
| 987 |
if ( ! file_exists( $path ) ) { |
| 988 |
return; |
| 989 |
} |
| 990 |
|
| 991 |
$files = glob( $path . '/*' ); |
| 992 |
foreach ( $files as $file ) { |
| 993 |
if ( file_exists( $file ) && is_dir( $file ) ) { |
| 994 |
$this->rmdir_recursive( $file ); |
| 995 |
} elseif ( file_exists( $file ) ) { |
| 996 |
unlink( $file ); |
| 997 |
} |
| 998 |
} |
| 999 |
|
| 1000 |
rmdir( $path ); |
| 1001 |
} |
| 1002 |
|
| 1003 |
/** |
| 1004 |
* Preload the homepage and immediately create cache for it |
| 1005 |
*/ |
| 1006 |
public function preload_homepage() { |
| 1007 |
$desktop_ua = apply_filters( |
| 1008 |
'ezcache_desktop_useragent', |
| 1009 |
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36 (ezCache Preload)' |
| 1010 |
); |
| 1011 |
$mobile_ua = apply_filters( |
| 1012 |
'ezcache_mobile_useragent', |
| 1013 |
'Mozilla/5.0 (iPhone; CPU iPhone OS 12_0 like Mac OS X) AppleWebKit/ 604.1.21 (KHTML, like Gecko) Version/ 12.0 Mobile/17A6278a Safari/602.1.26 (ezCache Preload)' |
| 1014 |
); |
| 1015 |
|
| 1016 |
wp_safe_remote_get( site_url(), [ |
| 1017 |
'user-agent' => $desktop_ua, |
| 1018 |
'timeout' => 0.1, |
| 1019 |
] ); |
| 1020 |
|
| 1021 |
wp_safe_remote_get( site_url(), [ |
| 1022 |
'user-agent' => $mobile_ua, |
| 1023 |
'timeout' => 0.1, |
| 1024 |
] ); |
| 1025 |
} |
| 1026 |
|
| 1027 |
function delete_missing_webp_images( $delete_all = false ) { |
| 1028 |
global $wpdb; |
| 1029 |
|
| 1030 |
// delete the actual files |
| 1031 |
$ids = [ 0 ]; |
| 1032 |
$where = $delete_all ? '' : "WHERE `status` = 'completed'"; |
| 1033 |
$images = $wpdb->get_results( "SELECT * FROM `{$wpdb->prefix}ezcache_webp_images` {$where}" ); |
| 1034 |
foreach ( $images as $image ) { |
| 1035 |
if ( ! file_exists( $image->webp_path ) ) { |
| 1036 |
$ids[] = $image->id; |
| 1037 |
} elseif ( ( $delete_all || ! file_exists( $image->path ) ) && file_exists( $image->webp_path ) ) { |
| 1038 |
unlink( $image->webp_path ); |
| 1039 |
$ids[] = $image->id; |
| 1040 |
} |
| 1041 |
} |
| 1042 |
|
| 1043 |
// clean the database |
| 1044 |
$wpdb->query( |
| 1045 |
$wpdb->prepare( |
| 1046 |
"DELETE FROM `{$wpdb->prefix}ezcache_webp_images` WHERE `status` = 'failed' OR `id` IN ( " . substr( str_repeat( "%d, ", count( $ids ) ), 0, - 2 ) . " )", |
| 1047 |
$ids |
| 1048 |
) |
| 1049 |
); |
| 1050 |
|
| 1051 |
$wpdb->query( "OPTIMIZE TABLE `{$wpdb->prefix}ezcache_webp_images`" ); |
| 1052 |
} |
| 1053 |
|
| 1054 |
function delete_all_webp_images() { |
| 1055 |
$this->delete_missing_webp_images( true ); |
| 1056 |
} |
| 1057 |
|
| 1058 |
/** |
| 1059 |
* Clear all caches |
| 1060 |
* |
| 1061 |
* @param bool $clear_webp Should deleting cache clear the WebP images |
| 1062 |
*/ |
| 1063 |
public function clear_cache( $clear_webp = false ) { |
| 1064 |
$this->rmdir_recursive( $this->root_cache_dir ); |
| 1065 |
@wp_mkdir_p( $this->root_cache_dir ); |
| 1066 |
|
| 1067 |
if ( $clear_webp ) { |
| 1068 |
$this->delete_all_webp_images(); |
| 1069 |
} else { |
| 1070 |
$this->delete_missing_webp_images(); |
| 1071 |
} |
| 1072 |
|
| 1073 |
$this->purge_varnish_cache(); |
| 1074 |
|
| 1075 |
// Also flush Redis (both object cache and full-page keys live under ezcache:*). |
| 1076 |
// If Redis is disabled or unavailable this is a no-op. |
| 1077 |
if ( class_exists( '\\Upress\\EzCache\\RedisObjectCache' ) ) { |
| 1078 |
\Upress\EzCache\RedisObjectCache::flush(); |
| 1079 |
} |
| 1080 |
|
| 1081 |
$this->preload_homepage(); |
| 1082 |
|
| 1083 |
/** |
| 1084 |
* Fires after the entire cache has been cleared. |
| 1085 |
* Used by the Preload module to start a fresh preload run. |
| 1086 |
*/ |
| 1087 |
do_action( 'ezcache_after_clear_cache' ); |
| 1088 |
} |
| 1089 |
|
| 1090 |
/** |
| 1091 |
* Clear cache for a single post |
| 1092 |
* |
| 1093 |
* @param int $post_id |
| 1094 |
*/ |
| 1095 |
public function clear_cache_single( $post_id ) { |
| 1096 |
$real_cache_dir = $this->get_real_cache_dir( $post_id ); |
| 1097 |
|
| 1098 |
$this->rmdir_recursive( $real_cache_dir ); |
| 1099 |
|
| 1100 |
$this->purge_varnish_cache(); |
| 1101 |
|
| 1102 |
// Remove the matching Redis full-page key so the next request rebuilds. |
| 1103 |
if ( class_exists( '\\Upress\\EzCache\\RedisObjectCache' ) ) { |
| 1104 |
$url = get_permalink( $post_id ); |
| 1105 |
if ( $url ) { |
| 1106 |
\Upress\EzCache\RedisObjectCache::delete_page( $url ); |
| 1107 |
} |
| 1108 |
} |
| 1109 |
|
| 1110 |
/** |
| 1111 |
* Fires after a single post's cache has been cleared. |
| 1112 |
* |
| 1113 |
* @param int $post_id |
| 1114 |
*/ |
| 1115 |
do_action( 'ezcache_after_clear_cache_single', $post_id ); |
| 1116 |
} |
| 1117 |
|
| 1118 |
public function clear_cache_url( $url ) { |
| 1119 |
$real_cache_dir = $this->get_real_cache_dir( 0, $url ); |
| 1120 |
|
| 1121 |
$this->rmdir_recursive( $real_cache_dir ); |
| 1122 |
|
| 1123 |
$this->purge_varnish_cache(); |
| 1124 |
|
| 1125 |
if ( class_exists( '\\Upress\\EzCache\\RedisObjectCache' ) ) { |
| 1126 |
\Upress\EzCache\RedisObjectCache::delete_page( $url ); |
| 1127 |
} |
| 1128 |
|
| 1129 |
/** |
| 1130 |
* Fires after a URL's cache has been cleared. |
| 1131 |
* |
| 1132 |
* @param string $url |
| 1133 |
*/ |
| 1134 |
do_action( 'ezcache_after_clear_cache_url', $url ); |
| 1135 |
} |
| 1136 |
|
| 1137 |
public function purge_varnish_cache() { |
| 1138 |
// Whether Varnish PURGE is enabled (on by default). Can be turned off from |
| 1139 |
// the settings screen on servers where Varnish is not in the request path, |
| 1140 |
// to avoid generating needless 403 noise in the logs. |
| 1141 |
$enabled = ! isset( $this->settings->enable_varnish_purge ) || ! empty( $this->settings->enable_varnish_purge ); |
| 1142 |
|
| 1143 |
/** |
| 1144 |
* Filters whether ezCache should send a PURGE request to Varnish. |
| 1145 |
* |
| 1146 |
* Return false to skip the PURGE entirely. |
| 1147 |
* |
| 1148 |
* @param bool $enabled Whether the PURGE request should be sent. |
| 1149 |
*/ |
| 1150 |
if ( ! apply_filters( 'ezcache_should_purge_varnish', $enabled ) ) { |
| 1151 |
return; |
| 1152 |
} |
| 1153 |
|
| 1154 |
$desktop_ua = apply_filters( |
| 1155 |
'ezcache_desktop_useragent', |
| 1156 |
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36 (ezCache Preload)' |
| 1157 |
); |
| 1158 |
|
| 1159 |
$parseUrl = parse_url( home_url() ); |
| 1160 |
|
| 1161 |
$schema = 'http://'; |
| 1162 |
if ( isset( $parseUrl['scheme'] ) ) { |
| 1163 |
$schema = $parseUrl['scheme'] . '://'; |
| 1164 |
} |
| 1165 |
|
| 1166 |
$host = $parseUrl['host']; |
| 1167 |
|
| 1168 |
// Send the PURGE to the local Varnish instance over loopback rather than to |
| 1169 |
// the public host. The public hostname is preserved in the Host header so |
| 1170 |
// Varnish still matches the right cache objects, while the request originates |
| 1171 |
// from 127.0.0.1 — which is what Varnish/nginx PURGE ACLs typically allow, |
| 1172 |
// avoiding the public 403 errors seen when the request leaves and re-enters |
| 1173 |
// the server via its public IP. |
| 1174 |
$purge_host = apply_filters( 'ezcache_varnish_purge_host', '127.0.0.1' ); |
| 1175 |
|
| 1176 |
$request_args = [ |
| 1177 |
'method' => 'PURGE', |
| 1178 |
'headers' => [ |
| 1179 |
'Host' => $host, |
| 1180 |
'User-Agent' => $desktop_ua, |
| 1181 |
], |
| 1182 |
'sslverify' => false, |
| 1183 |
]; |
| 1184 |
$response = wp_remote_request( $schema . $purge_host . '/.*', $request_args ); |
| 1185 |
if ( is_wp_error( $response ) || $response['response']['code'] != '200' ) { |
| 1186 |
if ( $schema === 'https://' ) { |
| 1187 |
$schema = 'http://'; |
| 1188 |
} else { |
| 1189 |
$schema = 'https://'; |
| 1190 |
} |
| 1191 |
wp_remote_request( $schema . $purge_host . '/.*', $request_args ); |
| 1192 |
} |
| 1193 |
} |
| 1194 |
|
| 1195 |
/** |
| 1196 |
* Delete expired cache |
| 1197 |
*/ |
| 1198 |
public function clear_expired_cache() { |
| 1199 |
$settings = $this->settings; |
| 1200 |
|
| 1201 |
try { |
| 1202 |
$dir = new RecursiveDirectoryIterator( $this->root_cache_dir ); |
| 1203 |
$iterator = new RecursiveIteratorIterator( $dir ); |
| 1204 |
$files = new RegexIterator( $iterator, '/^.+\.(?:gz|html|js|css)$/i', RegexIterator::GET_MATCH ); |
| 1205 |
} catch ( UnexpectedValueException $ex ) { |
| 1206 |
if ( strpos( $ex->getMessage(), 'No such file or directory' ) ) { |
| 1207 |
$files = []; |
| 1208 |
} else { |
| 1209 |
throw $ex; |
| 1210 |
} |
| 1211 |
} |
| 1212 |
|
| 1213 |
foreach ( $files as $file ) { |
| 1214 |
if ( is_array( $file ) ) { |
| 1215 |
$file = array_shift( $file ); |
| 1216 |
} |
| 1217 |
|
| 1218 |
$stats = stat( $file ); |
| 1219 |
if ( $stats['mtime'] > ( time() - $settings->cache_lifetime ) ) { |
| 1220 |
// skip not expired files |
| 1221 |
continue; |
| 1222 |
} |
| 1223 |
|
| 1224 |
@unlink( $file ); |
| 1225 |
} |
| 1226 |
} |
| 1227 |
|
| 1228 |
/** |
| 1229 |
* Get caching statistics and file sizes |
| 1230 |
* @return array |
| 1231 |
*/ |
| 1232 |
public function get_cache_stats() { |
| 1233 |
$settings = $this->settings; |
| 1234 |
$cache_dir = $this->get_default_cache_path(); |
| 1235 |
|
| 1236 |
try { |
| 1237 |
$dir = new RecursiveDirectoryIterator( $cache_dir ); |
| 1238 |
$iterator = new RecursiveIteratorIterator( $dir ); |
| 1239 |
$files = new RegexIterator( $iterator, '/^.+\.(?:gz|html|css|js)$/i', RegexIterator::GET_MATCH ); |
| 1240 |
} catch ( UnexpectedValueException $ex ) { |
| 1241 |
if ( strpos( $ex->getMessage(), 'No such file or directory' ) ) { |
| 1242 |
$files = []; |
| 1243 |
} else { |
| 1244 |
throw $ex; |
| 1245 |
} |
| 1246 |
} |
| 1247 |
|
| 1248 |
$raw_data = []; |
| 1249 |
|
| 1250 |
$mobile_count = 0; |
| 1251 |
$mobile_size = 0; |
| 1252 |
$mobile_expired_count = 0; |
| 1253 |
$mobile_expired_size = 0; |
| 1254 |
$desktop_count = 0; |
| 1255 |
$desktop_size = 0; |
| 1256 |
$desktop_expired_count = 0; |
| 1257 |
$desktop_expired_size = 0; |
| 1258 |
$js_count = 0; |
| 1259 |
$js_size = 0; |
| 1260 |
$js_expired_count = 0; |
| 1261 |
$js_expired_size = 0; |
| 1262 |
$css_count = 0; |
| 1263 |
$css_size = 0; |
| 1264 |
$css_expired_count = 0; |
| 1265 |
$css_expired_size = 0; |
| 1266 |
|
| 1267 |
foreach ( $files as $file ) { |
| 1268 |
if ( is_array( $file ) ) { |
| 1269 |
$file = array_shift( $file ); |
| 1270 |
} |
| 1271 |
|
| 1272 |
$stats = stat( $file ); |
| 1273 |
$expired = $stats['mtime'] <= ( time() - $settings->cache_lifetime ); |
| 1274 |
|
| 1275 |
$raw_data[] = [ |
| 1276 |
'path' => $file, |
| 1277 |
'stats' => $stats, |
| 1278 |
'expired' => $expired, |
| 1279 |
]; |
| 1280 |
|
| 1281 |
if ( preg_match( '/^.+?-mobile\.html(\.gz)?$/i', $file ) ) { |
| 1282 |
if ( ! $expired ) { |
| 1283 |
$mobile_count ++; |
| 1284 |
$mobile_size += $stats['size']; |
| 1285 |
} else { |
| 1286 |
$mobile_expired_count ++; |
| 1287 |
$mobile_expired_size += $stats['size']; |
| 1288 |
} |
| 1289 |
} elseif ( preg_match( '/\.css$/i', $file ) ) { |
| 1290 |
if ( $expired ) { |
| 1291 |
$css_expired_count ++; |
| 1292 |
$css_expired_size += $stats['size']; |
| 1293 |
} else { |
| 1294 |
$css_count ++; |
| 1295 |
$css_size += $stats['size']; |
| 1296 |
} |
| 1297 |
} elseif ( preg_match( '/\.js$/i', $file ) ) { |
| 1298 |
if ( $expired ) { |
| 1299 |
$js_expired_count ++; |
| 1300 |
$js_expired_size += $stats['size']; |
| 1301 |
} else { |
| 1302 |
$js_count ++; |
| 1303 |
$js_size += $stats['size']; |
| 1304 |
} |
| 1305 |
} else { |
| 1306 |
if ( ! $expired ) { |
| 1307 |
$desktop_count ++; |
| 1308 |
$desktop_size += $stats['size']; |
| 1309 |
} else { |
| 1310 |
$desktop_expired_count ++; |
| 1311 |
$desktop_expired_size += $stats['size']; |
| 1312 |
} |
| 1313 |
} |
| 1314 |
} |
| 1315 |
|
| 1316 |
// we want to count only the number of pages which have cache, but we have 2 files for each page |
| 1317 |
$mobile_count = $mobile_count / 2; |
| 1318 |
$desktop_count = $desktop_count / 2; |
| 1319 |
|
| 1320 |
|
| 1321 |
global $wpdb; |
| 1322 |
$webp_images = 0; |
| 1323 |
$webp_images_size = 0; |
| 1324 |
$webp_images_original_size = 0; |
| 1325 |
|
| 1326 |
$results = $wpdb->get_row( "SELECT COUNT(*) AS total, SUM(`original_size`) AS total_original_size, SUM(`webp_size`) AS total_webp_size FROM `{$wpdb->prefix}ezcache_webp_images` WHERE `status` = 'completed'" ); |
| 1327 |
if ( $results ) { |
| 1328 |
$webp_images = intval( $results->total ); |
| 1329 |
$webp_images_size = intval( $results->total_webp_size ); |
| 1330 |
$webp_images_original_size = intval( $results->total_original_size ); |
| 1331 |
} |
| 1332 |
|
| 1333 |
return compact( 'webp_images', 'webp_images_original_size', 'webp_images_size', 'mobile_count', 'desktop_count', 'mobile_expired_count', 'desktop_expired_count', 'mobile_size', 'desktop_size', 'mobile_expired_size', 'desktop_expired_size', 'css_size', 'css_count', 'js_count', 'js_size', 'css_expired_count', 'css_expired_size', 'js_expired_count', 'js_expired_size' ); |
| 1334 |
} |
| 1335 |
|
| 1336 |
/** |
| 1337 |
* Get the status of the cache |
| 1338 |
* |
| 1339 |
* @return array |
| 1340 |
*/ |
| 1341 |
public function get_status() { |
| 1342 |
global $wpdb; |
| 1343 |
|
| 1344 |
$wp_cache_enabled = defined( 'WP_CACHE' ) && WP_CACHE; |
| 1345 |
$adv_cache_exists = file_exists( WP_CONTENT_DIR . '/advanced-cache.php' ); |
| 1346 |
$correct_advanced_cache = $adv_cache_exists && strpos( file_get_contents( WP_CONTENT_DIR . '/advanced-cache.php' ), 'ezCache Advanced Cache' ) !== false; |
| 1347 |
$webp_table_exists = ! is_null( $wpdb->get_row( "SHOW TABLES LIKE '{$wpdb->prefix}ezcache_webp_images'" ) ); |
| 1348 |
|
| 1349 |
return [ |
| 1350 |
'cache_enabled' => $wp_cache_enabled, |
| 1351 |
'adv_cache_exists' => $adv_cache_exists, |
| 1352 |
'correct_cache_exists' => $correct_advanced_cache, |
| 1353 |
'webp_table_exists' => $webp_table_exists, |
| 1354 |
]; |
| 1355 |
} |
| 1356 |
|
| 1357 |
/** |
| 1358 |
* Get a path by the URL |
| 1359 |
* |
| 1360 |
* @param string $url |
| 1361 |
* |
| 1362 |
* @return bool|string |
| 1363 |
*/ |
| 1364 |
public static function url_to_path( $url ) { |
| 1365 |
$root_dir = trailingslashit( dirname( WP_CONTENT_DIR ) ); |
| 1366 |
$root_url = str_replace( wp_basename( WP_CONTENT_DIR ), '', content_url() ); |
| 1367 |
$url_host = wp_parse_url( $url, PHP_URL_HOST ); |
| 1368 |
|
| 1369 |
// relative path. |
| 1370 |
if ( null === $url_host ) { |
| 1371 |
$subdir_levels = substr_count( preg_replace( '/https?:\/\//', '', site_url() ), '/' ); |
| 1372 |
$url = trailingslashit( site_url() . str_repeat( '/..', $subdir_levels ) ) . ltrim( $url, '/' ); |
| 1373 |
} |
| 1374 |
|
| 1375 |
$root_url = preg_replace( '/^https?:/', '', $root_url ); |
| 1376 |
$url_rep = preg_replace( '/^https?:/', '', $url ); |
| 1377 |
$file = str_replace( $root_url, $root_dir, $url_rep ); |
| 1378 |
$real_path = self::realpath( $file ); |
| 1379 |
|
| 1380 |
if ( ! file_exists( $real_path ) ) { |
| 1381 |
return false; |
| 1382 |
} |
| 1383 |
|
| 1384 |
return $real_path; |
| 1385 |
} |
| 1386 |
|
| 1387 |
/** |
| 1388 |
* Returns canonicalized absolute pathname. |
| 1389 |
* The resulting path will have no symbolic link, '/./' or '/../' components. |
| 1390 |
* Same as the defautl PHP realpath() function but works even when the files does not exist. |
| 1391 |
* |
| 1392 |
* @param string $file The path being checked. |
| 1393 |
* |
| 1394 |
* @return string |
| 1395 |
* @see \realpath() |
| 1396 |
* |
| 1397 |
*/ |
| 1398 |
public static function realpath( $file ) { |
| 1399 |
$path = []; |
| 1400 |
|
| 1401 |
foreach ( explode( '/', $file ) as $part ) { |
| 1402 |
if ( '' === $part || '.' === $part ) { |
| 1403 |
continue; |
| 1404 |
} |
| 1405 |
|
| 1406 |
if ( '..' !== $part ) { |
| 1407 |
array_push( $path, $part ); |
| 1408 |
} elseif ( count( $path ) > 0 ) { |
| 1409 |
array_pop( $path ); |
| 1410 |
} |
| 1411 |
} |
| 1412 |
|
| 1413 |
$prefix = 'WIN' === strtoupper( substr( PHP_OS, 0, 3 ) ) ? '' : '/'; |
| 1414 |
|
| 1415 |
return $prefix . join( '/', $path ); |
| 1416 |
} |
| 1417 |
|
| 1418 |
/** |
| 1419 |
* Check if Development Mode is active (file-based, works before WP loads) |
| 1420 |
*/ |
| 1421 |
public static function is_dev_mode_active() { |
| 1422 |
$flag_file = (defined('WP_CONTENT_DIR') ? WP_CONTENT_DIR : dirname(__DIR__)) . '/cache/ezcache/.dev-mode'; |
| 1423 |
if ( ! file_exists( $flag_file ) ) { |
| 1424 |
return false; |
| 1425 |
} |
| 1426 |
$expires = (int) trim( @file_get_contents( $flag_file ) ); |
| 1427 |
if ( $expires === 0 ) { |
| 1428 |
return true; |
| 1429 |
} |
| 1430 |
if ( time() >= $expires ) { |
| 1431 |
@unlink( $flag_file ); |
| 1432 |
return false; |
| 1433 |
} |
| 1434 |
return true; |
| 1435 |
} |
| 1436 |
|
| 1437 |
public static function enable_dev_mode( $seconds = 3600 ) { |
| 1438 |
$dir = WP_CONTENT_DIR . '/cache/ezcache'; |
| 1439 |
if ( ! is_dir( $dir ) ) { |
| 1440 |
@mkdir( $dir, 0755, true ); |
| 1441 |
} |
| 1442 |
$expires = ( $seconds === 0 ) ? 0 : time() + $seconds; |
| 1443 |
file_put_contents( $dir . '/.dev-mode', (string) $expires ); |
| 1444 |
} |
| 1445 |
|
| 1446 |
public static function disable_dev_mode() { |
| 1447 |
@unlink( WP_CONTENT_DIR . '/cache/ezcache/.dev-mode' ); |
| 1448 |
} |
| 1449 |
|
| 1450 |
public static function get_dev_mode_status() { |
| 1451 |
$flag = WP_CONTENT_DIR . '/cache/ezcache/.dev-mode'; |
| 1452 |
if ( ! file_exists( $flag ) ) { |
| 1453 |
return [ 'active' => false ]; |
| 1454 |
} |
| 1455 |
$expires = (int) trim( @file_get_contents( $flag ) ); |
| 1456 |
if ( $expires > 0 && time() >= $expires ) { |
| 1457 |
@unlink( $flag ); |
| 1458 |
return [ 'active' => false ]; |
| 1459 |
} |
| 1460 |
return [ |
| 1461 |
'active' => true, |
| 1462 |
'expires' => $expires === 0 ? 'permanent' : $expires, |
| 1463 |
'remaining' => $expires === 0 ? null : $expires - time(), |
| 1464 |
]; |
| 1465 |
} |
| 1466 |
} |
| 1467 |
|
