| 1 |
<?php |
| 2 |
|
| 3 |
class RabbitLoader_21_Public{ |
| 4 |
|
| 5 |
static $skip_reason = ''; |
| 6 |
const skip_reason_pm = "private-mode"; |
| 7 |
const skip_reason_or = "rl-origin"; |
| 8 |
const skip_reason_ep = "exclude-pattern"; |
| 9 |
const no_optimization = "rl-no-optimization"; |
| 10 |
static $wp_footer_called = false; |
| 11 |
static $add_action_called = false; |
| 12 |
static $is_origin = false; |
| 13 |
|
| 14 |
public static function addActions(){ |
| 15 |
if(self::$add_action_called){ |
| 16 |
return; |
| 17 |
} |
| 18 |
self::$add_action_called = true; |
| 19 |
//is_user_logged_in is a pluggable function and you could get a fatal error if you call it too early. |
| 20 |
add_action('init', 'RabbitLoader_21_Public::init', 10); |
| 21 |
add_action('shutdown', 'RabbitLoader_21_Public::shutdown', 10000); |
| 22 |
add_filter('wp_redirect', 'RabbitLoader_21_Public::wp_redirect', 10, 2); |
| 23 |
add_filter('redirect_canonical', 'RabbitLoader_21_Public::redirect_canonical', 10, 2); |
| 24 |
add_filter('pre_handle_404','RabbitLoader_21_Public::pre_handle_404', 10, 2); |
| 25 |
add_filter('paginate_links', 'RabbitLoader_21_Public::paginate_links', 10, 1); |
| 26 |
add_filter('nonce_life', 'RabbitLoader_21_Public::nonce_life'); |
| 27 |
add_action('wp_footer', 'RabbitLoader_21_Public::wp_footer'); |
| 28 |
add_action('get_footer', 'RabbitLoader_21_Public::wp_footer'); |
| 29 |
|
| 30 |
RabbitLoader_21_CanonicalUrl::init(); |
| 31 |
RabbitLoader_21_Util_WP::init(); |
| 32 |
|
| 33 |
//Third party theme hooks |
| 34 |
add_action('kirki_output_inline_styles', function($value){ |
| 35 |
#theme developed using kirki framework may generate lots of inline css referring to font files making the page load slow |
| 36 |
#https://github.com/kirki-framework/kirki/blob/3a5d5093b1a99d1c7b813608479fe8fc9348b6a3/packages/kirki-framework/module-css/src/CSS.php |
| 37 |
$value = false; |
| 38 |
return $value; |
| 39 |
}, -1); |
| 40 |
} |
| 41 |
|
| 42 |
public static function init() |
| 43 |
{ |
| 44 |
if(!empty($_SERVER["HTTP_X_RL_PINGBACK_V2"])){ |
| 45 |
self::setup_endpoint(); |
| 46 |
return; |
| 47 |
} |
| 48 |
|
| 49 |
// try{ |
| 50 |
// if(!empty($_SERVER["HTTP_X_RL_SET_OPTION"]) && strcmp($_SERVER["HTTP_X_RL_SET_OPTION"], 'rabbitloader_field_disconnect_reason')===0){ |
| 51 |
// $responses = ['time'=>date('c')]; |
| 52 |
// try{ |
| 53 |
// global $wpdb; |
| 54 |
// $responses['disconnect_reason'] = $wpdb->get_results("select option_id, option_name from $wpdb->options where option_name in ('rabbitloader_field_disconnect_reason', 'rabbitloader_field_update_time')"); |
| 55 |
// }catch(Throwable $e){ |
| 56 |
// RabbitLoader_21_Core::on_exception($e); |
| 57 |
// } |
| 58 |
// RabbitLoader_21_Core::sendJsonResponse($responses); |
| 59 |
// } |
| 60 |
// }catch(Throwable $e){ |
| 61 |
// RabbitLoader_21_Core::on_exception($e); |
| 62 |
// } |
| 63 |
|
| 64 |
if (current_user_can( 'manage_options' )) { |
| 65 |
add_action('admin_bar_menu', 'RabbitLoader_21_Public::adminBarMenu', 50); |
| 66 |
add_action('wp_enqueue_scripts', 'RabbitLoader_21_Public::adminBarScript'); |
| 67 |
} |
| 68 |
|
| 69 |
RabbitLoader_21_CDN::init(); |
| 70 |
} |
| 71 |
|
| 72 |
public static function shutdown($cache_served = false) |
| 73 |
{ |
| 74 |
try{ |
| 75 |
if(!$cache_served){ |
| 76 |
self::optimized_version_missing(); |
| 77 |
RabbitLoader_21_Core::clean_orphaned_cached_files(300); |
| 78 |
}else{ |
| 79 |
RabbitLoader_21_Core::clean_orphaned_cached_files(3600); |
| 80 |
} |
| 81 |
}catch(Throwable $e){ |
| 82 |
RabbitLoader_21_Core::on_exception($e); |
| 83 |
} |
| 84 |
} |
| 85 |
|
| 86 |
private static function can_cache_request($request_uri){ |
| 87 |
if(!empty(self::$skip_reason)){ |
| 88 |
return false; |
| 89 |
} |
| 90 |
if(RabbitLoader_21_Util_Core::get_request_type()!='get'){ |
| 91 |
//Not a GET request, return |
| 92 |
self::$skip_reason = 'method-'.RabbitLoader_21_Util_Core::get_request_type(); |
| 93 |
return false; |
| 94 |
} |
| 95 |
|
| 96 |
if(RabbitLoader_21_Util_WP::is_user_logged_in() || RabbitLoader_21_Util_WP::is_login_page()){ |
| 97 |
//we are not serving cached content to logged in users |
| 98 |
self::$skip_reason = 'user-session'; |
| 99 |
return false; |
| 100 |
} |
| 101 |
|
| 102 |
if(RabbitLoader_21_Util_WP::is_ajax()){ |
| 103 |
self::$skip_reason = 'ajax'; |
| 104 |
return false; |
| 105 |
} |
| 106 |
|
| 107 |
if(!empty($_SERVER["HTTP_X_RL_PINGBACK"]) || RabbitLoader_21_Util_Core::isNoOptimization() || !empty($_SERVER["HTTP_X_RL_DIAGNOSIS"])){ |
| 108 |
//its origin pull form ur own server, let it get the original HTML |
| 109 |
self::$skip_reason = self::skip_reason_or; |
| 110 |
self::$is_origin = true; |
| 111 |
return false; |
| 112 |
} |
| 113 |
|
| 114 |
if(!empty($_COOKIE['woocommerce_items_in_cart'])){ |
| 115 |
//TBD- user has some items in cart, in future version we will check how to serve a cached page with cart |
| 116 |
self::$skip_reason = 'cart-items'; |
| 117 |
return false; |
| 118 |
} |
| 119 |
|
| 120 |
if(empty($_SERVER["HTTP_HOST"]) || RabbitLoader_21_Util_WP::is_cli() || !empty($_GET["mwprid"])){ |
| 121 |
self::$skip_reason = 'cli'; |
| 122 |
return false; |
| 123 |
} |
| 124 |
|
| 125 |
global $wp_query; |
| 126 |
if (isset($wp_query) && $wp_query->is_404()) { |
| 127 |
self::$skip_reason = '404-not-found'; |
| 128 |
return false; |
| 129 |
} |
| 130 |
|
| 131 |
if (RabbitLoader_21_Util_WP::is_search()) { |
| 132 |
self::$skip_reason = 'search'; |
| 133 |
return false; |
| 134 |
} |
| 135 |
|
| 136 |
if(RabbitLoader_21_Util_WP::is_cart()){ |
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self::$skip_reason = 'cart'; |
| 138 |
return false; |
| 139 |
} |
| 140 |
|
| 141 |
if(RabbitLoader_21_Util_WP::is_checkout()){ |
| 142 |
self::$skip_reason = 'checkout'; |
| 143 |
return false; |
| 144 |
} |
| 145 |
|
| 146 |
RabbitLoader_21_Core::getWpUserOption($user_options); |
| 147 |
|
| 148 |
if(!empty($user_options['cart_uri']) && strcasecmp(RabbitLoader_21_Util_Core::serverURINoGet(), $user_options['cart_uri'])==0){ |
| 149 |
self::$skip_reason = 'cart'; |
| 150 |
return false; |
| 151 |
} |
| 152 |
|
| 153 |
if(!empty($user_options['checkout_uri']) && strcasecmp(RabbitLoader_21_Util_Core::serverURINoGet(), $user_options['checkout_uri'])==0){ |
| 154 |
self::$skip_reason = 'checkout'; |
| 155 |
return false; |
| 156 |
} |
| 157 |
|
| 158 |
if(!empty($user_options['exclude_patterns'])){ |
| 159 |
$exclude_patterns = explode("\n", $user_options['exclude_patterns']); |
| 160 |
$matched = false; |
| 161 |
if(!empty($exclude_patterns)){ |
| 162 |
foreach($exclude_patterns as $i=>$path_pattern){ |
| 163 |
if(!empty($path_pattern)){ |
| 164 |
$matched = fnmatch(trim($path_pattern), $request_uri); |
| 165 |
if(!$matched){ |
| 166 |
$matched = fnmatch(trim($path_pattern), rawurldecode($request_uri)); |
| 167 |
} |
| 168 |
if(!$matched){ |
| 169 |
$matched = fnmatch($path_pattern, rawurldecode($request_uri)); |
| 170 |
} |
| 171 |
if($matched){break;} |
| 172 |
} |
| 173 |
} |
| 174 |
} |
| 175 |
if($matched){ |
| 176 |
self::$skip_reason = self::skip_reason_ep; |
| 177 |
return false; |
| 178 |
} |
| 179 |
} |
| 180 |
if(!empty($user_options['private_mode_val']) && empty($_GET['rltest'])){ |
| 181 |
self::$skip_reason = self::skip_reason_pm; |
| 182 |
return false; |
| 183 |
} |
| 184 |
|
| 185 |
if(!empty(self::$skip_reason)){ |
| 186 |
self::$skip_reason = self::$skip_reason; |
| 187 |
return false; |
| 188 |
} |
| 189 |
|
| 190 |
return true; |
| 191 |
} |
| 192 |
|
| 193 |
public static function getSkipReason(){ |
| 194 |
return self::$skip_reason; |
| 195 |
} |
| 196 |
|
| 197 |
public static function process_incoming_request($mode='ac'){ |
| 198 |
try{ |
| 199 |
RabbitLoader_21_Util_Core::get_requested_uri($request_uri, $request_url); |
| 200 |
|
| 201 |
if(!self::can_cache_request($request_uri)){ |
| 202 |
if(empty(self::$skip_reason)){self::$skip_reason='unknown';} |
| 203 |
RabbitLoader_21_Core::sendHeader('x-rl-cache: skipped-'.self::$skip_reason, true); |
| 204 |
return; |
| 205 |
} |
| 206 |
|
| 207 |
if(!empty($request_uri) && $request_uri!="/favicon.ico"){ |
| 208 |
|
| 209 |
RabbitLoader_21_Core::get_cache_file_path($request_url, $cache_file); |
| 210 |
|
| 211 |
if(self::serve_from_cache_if_available($cache_file)){ |
| 212 |
//ignore buffer and serve from cache |
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self::shutdown(true); |
| 214 |
exit; |
| 215 |
} |
| 216 |
|
| 217 |
RabbitLoader_21_Core::sendHeader('x-rl-cache: miss/'.$mode, true); |
| 218 |
} |
| 219 |
}catch(Throwable $e){ |
| 220 |
RabbitLoader_21_Core::on_exception($e); |
| 221 |
} |
| 222 |
} |
| 223 |
|
| 224 |
private static function optimized_version_missing(){ |
| 225 |
|
| 226 |
RabbitLoader_21_Util_Core::get_requested_uri($request_uri, $request_url); |
| 227 |
if(self::can_cache_request($request_uri)){ |
| 228 |
$request_url.="\n"; |
| 229 |
RabbitLoader_21_Util_Core::fac('cache_missed', $request_url, WP_DEBUG); |
| 230 |
}else if(strcmp(self::$skip_reason,self::skip_reason_pm)===0){ |
| 231 |
if(!RabbitLoader_21_Core::cache_exists_for_url($request_url, 0)){ |
| 232 |
$request_url.="\n"; |
| 233 |
RabbitLoader_21_Util_Core::fac('cache_missed', $request_url, WP_DEBUG); |
| 234 |
} |
| 235 |
}else{ |
| 236 |
//error_log($skip_reason.'=>'.$request_uri); |
| 237 |
} |
| 238 |
} |
| 239 |
|
| 240 |
public static function setup_endpoint(){ |
| 241 |
if(empty($_SERVER["HTTP_X_RL_PINGBACK_V2"])){ |
| 242 |
return; |
| 243 |
} |
| 244 |
|
| 245 |
$response = [ |
| 246 |
'time'=>date('c') |
| 247 |
]; |
| 248 |
|
| 249 |
RabbitLoader_21_Core::getWpOption($rl_wp_options); |
| 250 |
$api_key = empty($_SERVER["HTTP_X_RL_APIKEY"]) ? '' : trim($_SERVER["HTTP_X_RL_APIKEY"]); |
| 251 |
$push_key = empty($_SERVER["HTTP_X_RL_PUSH_KEY"]) ? '' : trim($_SERVER["HTTP_X_RL_PUSH_KEY"]); |
| 252 |
|
| 253 |
$isValidKey1 = (!empty($rl_wp_options['rabbitloader_field_apikey']) && ($rl_wp_options['rabbitloader_field_apikey'] == $api_key)); |
| 254 |
$isValidKey2 = (!empty($rl_wp_options['push_key']) && wp_check_password($push_key, $rl_wp_options['push_key'])); |
| 255 |
$isValidKey3 = (function_exists('get_option') && !empty($api_key) && ($api_key == get_option('rabbitloader_field_apikey'))); |
| 256 |
$isValidKey = $isValidKey1 || $isValidKey2 || $isValidKey3; |
| 257 |
|
| 258 |
$rlaction = RabbitLoader_21_Util_Core::get_param('rlaction', true); |
| 259 |
|
| 260 |
if(!$isValidKey){ |
| 261 |
$response['exception'] = 'key mismatch'; |
| 262 |
http_response_code(200); |
| 263 |
echo json_encode($response); |
| 264 |
return; |
| 265 |
} |
| 266 |
|
| 267 |
if(strcasecmp($rlaction, 'warmup')===0){ |
| 268 |
$queued_offset = intval($_POST['queued_offset']); |
| 269 |
RabbitLoader_21_Core::run_warmup($queued_offset, $response); |
| 270 |
}else if(strcasecmp($rlaction, 'purge')===0){ |
| 271 |
$tp_purge_count = 0; |
| 272 |
RabbitLoader_21_Core::purge_all($purge_count, 'RL_PANEL', $tp_purge_count); |
| 273 |
$response['purged'] = 1; |
| 274 |
$response['purge_count'] = $purge_count; |
| 275 |
$response['tp_purge_count'] = $tp_purge_count; |
| 276 |
}else if(strcasecmp($rlaction, 'diagnosis')===0){ |
| 277 |
RabbitLoader_21_Core::run_diagnosis($response); |
| 278 |
}else if(empty($rlaction) || strcasecmp($rlaction, 'savepage')===0){ |
| 279 |
|
| 280 |
$cur_id = RabbitLoader_21_Util_Core::get_param('cur_id', true); |
| 281 |
$response['cur_id'] = $cur_id; |
| 282 |
|
| 283 |
if(class_exists('ZipArchive')){ |
| 284 |
try{ |
| 285 |
$zip = new \ZipArchive(); |
| 286 |
if (!empty($cur_id) && !empty($_FILES["content_zip"]["tmp_name"]) && $zip->open($_FILES["content_zip"]["tmp_name"]) === TRUE) { |
| 287 |
$dir = sys_get_temp_dir(); |
| 288 |
$zip->extractTo($dir); |
| 289 |
$zip->close(); |
| 290 |
RabbitLoader_21_Core::get_cache_file_path($_POST['canonical_url'], $cache_file); |
| 291 |
|
| 292 |
$saved_count = 0; |
| 293 |
$tp_purge_count = 0; |
| 294 |
$html_fn = "$dir/$cur_id.html"; |
| 295 |
if(file_exists($html_fn)){ |
| 296 |
$response['zip_opened'] = true; |
| 297 |
if(self::hasValidClosingTag($html_fn)){ |
| 298 |
if(RabbitLoader_21_Util_Core::move($html_fn, $cache_file.'_c')){ |
| 299 |
++$saved_count; |
| 300 |
} |
| 301 |
if(RabbitLoader_21_Util_Core::move("$dir/$cur_id.json", $cache_file.'_h')){ |
| 302 |
++$saved_count; |
| 303 |
} |
| 304 |
}else{ |
| 305 |
$response['eof_missing'] = true; |
| 306 |
} |
| 307 |
if($saved_count>0){ |
| 308 |
RabbitLoader_21_TP::purge_url($_POST['canonical_url'], $tp_purge_count); |
| 309 |
} |
| 310 |
|
| 311 |
}else{ |
| 312 |
$response['zip_extract'] = "$html_fn not found"; |
| 313 |
} |
| 314 |
|
| 315 |
$response['tmp_dir'] = $dir; |
| 316 |
$response['saved_count'] = $saved_count; |
| 317 |
$response['tp_purge_count'] = $tp_purge_count; |
| 318 |
$response['cache_file'] = $cache_file; |
| 319 |
$response['cache_filesize'] = filesize($cache_file.'_c'); |
| 320 |
$response['canonical_url'] = $_POST['canonical_url']; |
| 321 |
}else{ |
| 322 |
$response['zip_opened'] = false; |
| 323 |
} |
| 324 |
}catch(\Throwable $e){ |
| 325 |
$response['exception'] = $e->getMessage(); |
| 326 |
} |
| 327 |
}else{ |
| 328 |
$response['exception'] = 'ZipArchive not found'; |
| 329 |
} |
| 330 |
}else{ |
| 331 |
$response['exception'] = 'invalid action '.$rlaction; |
| 332 |
} |
| 333 |
http_response_code(200); |
| 334 |
echo json_encode($response); |
| 335 |
exit; |
| 336 |
} |
| 337 |
|
| 338 |
private static function hasValidClosingTag(string $fn){ |
| 339 |
$valid = false; |
| 340 |
$handle = fopen($fn, 'r'); |
| 341 |
fseek($handle, -8192, SEEK_END); //grab the last 8000 bytes to be safe |
| 342 |
while (($buffer = fgets($handle)) !== false) { |
| 343 |
if (stripos($buffer, '</html>') !== false || stripos($buffer, '</body>') !== false) { |
| 344 |
$valid = true; |
| 345 |
break; |
| 346 |
} |
| 347 |
} |
| 348 |
fclose($handle); |
| 349 |
return $valid; |
| 350 |
} |
| 351 |
|
| 352 |
private static function serve_from_cache_if_available($cache_file){ |
| 353 |
if(RabbitLoader_21_Core::cache_exists_for_hash($cache_file, 0)){ |
| 354 |
//ignore buffer and serve from cache |
| 355 |
if(file_exists($cache_file.'_h')){ |
| 356 |
//header is optional |
| 357 |
RabbitLoader_21_Util_Core::send_headers(file_get_contents($cache_file.'_h')); |
| 358 |
} |
| 359 |
RabbitLoader_21_Core::sendHeader('x-rl-cache: hit', true); |
| 360 |
echo file_get_contents($cache_file.'_c'); |
| 361 |
return true; |
| 362 |
} |
| 363 |
} |
| 364 |
|
| 365 |
public static function adminBarMenu($admin_bar){ |
| 366 |
$top_menu = array( |
| 367 |
'id' => 'rabbitloader_top_menu', |
| 368 |
'title' => 'RabbitLoader', |
| 369 |
'href' => admin_url( 'options-general.php?page=rabbitloader' ) |
| 370 |
); |
| 371 |
|
| 372 |
$list_menu = array( |
| 373 |
'parent' => 'rabbitloader_top_menu', |
| 374 |
'id' => 'rabbitloader_purge_page', |
| 375 |
'title' => 'Purge cache for this page', |
| 376 |
'href' => "#", |
| 377 |
'meta' => array( |
| 378 |
'class' => 'rabbitloader_purge_page', |
| 379 |
) |
| 380 |
); |
| 381 |
|
| 382 |
$admin_bar->add_node($top_menu); |
| 383 |
$admin_bar->add_node($list_menu); |
| 384 |
} |
| 385 |
|
| 386 |
public static function adminBarScript(){ |
| 387 |
global $post; |
| 388 |
|
| 389 |
wp_enqueue_script('rabbitloader-index', RABBITLOADER_PLUG_URL . 'admin/js/index.js', ['jquery'], RABBITLOADER_PLUG_VERSION); |
| 390 |
wp_localize_script( 'rabbitloader-index', 'rabbitloader_local_vars', [ |
| 391 |
'admin_ajax' => admin_url( 'admin-ajax.php' ), |
| 392 |
'post_id' => empty($post) ? 0: $post->ID |
| 393 |
]); |
| 394 |
} |
| 395 |
|
| 396 |
public static function wp_redirect($location, $status){ |
| 397 |
if(!empty($location)){ |
| 398 |
self::$skip_reason = 'redirect-'.$status; |
| 399 |
} |
| 400 |
return $location; |
| 401 |
} |
| 402 |
|
| 403 |
public static function redirect_canonical($redirect_url, $requested_url){ |
| 404 |
if(!empty($redirect_url)){self::$skip_reason = 'redirect-canonical';} |
| 405 |
return $redirect_url; |
| 406 |
} |
| 407 |
|
| 408 |
public static function pre_handle_404($preempt, $wp_query ){ |
| 409 |
if($preempt){self::$skip_reason = '404';} |
| 410 |
return $preempt; |
| 411 |
} |
| 412 |
|
| 413 |
public static function paginate_links($link){ |
| 414 |
if(!empty($link)){ |
| 415 |
$link = str_ireplace('rl-no-optimization=1','', $link); |
| 416 |
$link = rtrim($link, '?'); |
| 417 |
return $link; |
| 418 |
} |
| 419 |
} |
| 420 |
|
| 421 |
public static function nonce_life($life){ |
| 422 |
$referer = empty($_SERVER["HTTP_REFERER"]) ? '' : $_SERVER["HTTP_REFERER"]; |
| 423 |
if(RabbitLoader_21_Util_WP::is_user_logged_in()){ |
| 424 |
return $life; |
| 425 |
}elseif(intval($life)>RabbitLoader_21_Core::ORPHANED_LONG_AGE_SEC){ |
| 426 |
return $life; |
| 427 |
}else if(self::$skip_reason==self::skip_reason_or || self::$is_origin){ |
| 428 |
//this also sets if no_optimization is passed |
| 429 |
return RabbitLoader_21_Core::ORPHANED_LONG_AGE_SEC; |
| 430 |
}else if(RabbitLoader_21_Util_WP::is_ajax() && (!empty($_COOKIE["rlCached"]) || stripos($referer, self::no_optimization)!==false)){ |
| 431 |
//for ajax, if cookie is set, the page was cached who called the ajax |
| 432 |
//or the referer page had no_optimization that matched the previous else condition |
| 433 |
return RabbitLoader_21_Core::ORPHANED_LONG_AGE_SEC; |
| 434 |
}else{ |
| 435 |
//unhandled scenarios |
| 436 |
} |
| 437 |
return $life; |
| 438 |
} |
| 439 |
|
| 440 |
public static function wp_footer(){ |
| 441 |
if(self::$wp_footer_called){ |
| 442 |
return; |
| 443 |
} |
| 444 |
self::$wp_footer_called = true; |
| 445 |
echo "<script data-rlskip='1'>let rlCached = window.rlPageData && window.rlPageData.rlCached; |
| 446 |
document.cookie = 'rlCached=' + (rlCached ? '1' : '0') + '; path=/;'; |
| 447 |
</script>"; |
| 448 |
} |
| 449 |
} |
| 450 |
|
| 451 |
?> |
