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1 <?php 2 /** 3 * These functions are needed to load WordPress. 4 * 5 * @package WordPress 6 */ 7 8 /** 9 * Return the HTTP protocol sent by the server. 10 * 11 * @since 4.4.0 12 * 13 * @return string The HTTP protocol. Default: HTTP/1.0. 14 */ 15 function wp_get_server_protocol() { 16 $protocol = isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : ''; 17 if ( ! in_array( $protocol, array( 'HTTP/1.1', 'HTTP/2', 'HTTP/2.0' ), true ) ) { 18 $protocol = 'HTTP/1.0'; 19 } 20 return $protocol; 21 } 22 23 /** 24 * Fix `$_SERVER` variables for various setups. 25 * 26 * @since 3.0.0 27 * @access private 28 * 29 * @global string $PHP_SELF The filename of the currently executing script, 30 * relative to the document root. 31 */ 32 function wp_fix_server_vars() { 33 global $PHP_SELF; 34 35 $default_server_values = array( 36 'SERVER_SOFTWARE' => '', 37 'REQUEST_URI' => '', 38 ); 39 40 $_SERVER = array_merge( $default_server_values, $_SERVER ); 41 42 // Fix for IIS when running with PHP ISAPI. 43 if ( empty( $_SERVER['REQUEST_URI'] ) || ( 'cgi-fcgi' !== PHP_SAPI && preg_match( '/^Microsoft-IIS\//', $_SERVER['SERVER_SOFTWARE'] ) ) ) { 44 45 if ( isset( $_SERVER['HTTP_X_ORIGINAL_URL'] ) ) { 46 // IIS Mod-Rewrite. 47 $_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_ORIGINAL_URL']; 48 } elseif ( isset( $_SERVER['HTTP_X_REWRITE_URL'] ) ) { 49 // IIS Isapi_Rewrite. 50 $_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_REWRITE_URL']; 51 } else { 52 // Use ORIG_PATH_INFO if there is no PATH_INFO. 53 if ( ! isset( $_SERVER['PATH_INFO'] ) && isset( $_SERVER['ORIG_PATH_INFO'] ) ) { 54 $_SERVER['PATH_INFO'] = $_SERVER['ORIG_PATH_INFO']; 55 } 56 57 // Some IIS + PHP configurations put the script-name in the path-info (no need to append it twice). 58 if ( isset( $_SERVER['PATH_INFO'] ) ) { 59 if ( $_SERVER['PATH_INFO'] == $_SERVER['SCRIPT_NAME'] ) { 60 $_SERVER['REQUEST_URI'] = $_SERVER['PATH_INFO']; 61 } else { 62 $_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] . $_SERVER['PATH_INFO']; 63 } 64 } 65 66 // Append the query string if it exists and isn't null. 67 if ( ! empty( $_SERVER['QUERY_STRING'] ) ) { 68 $_SERVER['REQUEST_URI'] .= '?' . $_SERVER['QUERY_STRING']; 69 } 70 } 71 } 72 73 // Fix for PHP as CGI hosts that set SCRIPT_FILENAME to something ending in php.cgi for all requests. 74 if ( isset( $_SERVER['SCRIPT_FILENAME'] ) && ( strpos( $_SERVER['SCRIPT_FILENAME'], 'php.cgi' ) == strlen( $_SERVER['SCRIPT_FILENAME'] ) - 7 ) ) { 75 $_SERVER['SCRIPT_FILENAME'] = $_SERVER['PATH_TRANSLATED']; 76 } 77 78 // Fix for Dreamhost and other PHP as CGI hosts. 79 if ( strpos( $_SERVER['SCRIPT_NAME'], 'php.cgi' ) !== false ) { 80 unset( $_SERVER['PATH_INFO'] ); 81 } 82 83 // Fix empty PHP_SELF. 84 $PHP_SELF = $_SERVER['PHP_SELF']; 85 if ( empty( $PHP_SELF ) ) { 86 $_SERVER['PHP_SELF'] = preg_replace( '/(\?.*)?$/', '', $_SERVER['REQUEST_URI'] ); 87 $PHP_SELF = $_SERVER['PHP_SELF']; 88 } 89 } 90 91 /** 92 * Check for the required PHP version, and the MySQL extension or 93 * a database drop-in. 94 * 95 * Dies if requirements are not met. 96 * 97 * @since 3.0.0 98 * @access private 99 * 100 * @global string $required_php_version The required PHP version string. 101 * @global string $wp_version The WordPress version string. 102 */ 103 function wp_check_php_mysql_versions() { 104 global $required_php_version, $wp_version; 105 $php_version = phpversion(); 106 107 if ( version_compare( $required_php_version, $php_version, '>' ) ) { 108 $protocol = wp_get_server_protocol(); 109 header( sprintf( '%s 500 Internal Server Error', $protocol ), true, 500 ); 110 header( 'Content-Type: text/html; charset=utf-8' ); 111 printf( 'Your server is running PHP version %1$s but WordPress %2$s requires at least %3$s.', $php_version, $wp_version, $required_php_version ); 112 exit( 1 ); 113 } 114 115 if ( ! extension_loaded( 'mysql' ) && ! extension_loaded( 'mysqli' ) && ! extension_loaded( 'mysqlnd' ) && ! file_exists( WP_CONTENT_DIR . '/db.php' ) ) { 116 require_once ABSPATH . WPINC . '/functions.php'; 117 wp_load_translations_early(); 118 $args = array( 119 'exit' => false, 120 'code' => 'mysql_not_found', 121 ); 122 wp_die( 123 __( 'Your PHP installation appears to be missing the MySQL extension which is required by WordPress.' ), 124 __( 'Requirements Not Met' ), 125 $args 126 ); 127 exit( 1 ); 128 } 129 } 130 131 /** 132 * Retrieves the current environment type. 133 * 134 * The type can be set via the `WP_ENVIRONMENT_TYPE` global system variable, 135 * a constant of the same name, or the {@see 'wp_get_environment_type'} filter. 136 * 137 * Possible values include 'development', 'staging', 'production'. If not set, 138 * the type defaults to 'production'. 139 * 140 * @since 5.5.0 141 * 142 * @return string The current environment type. 143 */ 144 function wp_get_environment_type() { 145 static $current_env = ''; 146 147 if ( $current_env ) { 148 return $current_env; 149 } 150 151 $wp_environments = array( 152 'development', 153 'staging', 154 'production', 155 ); 156 157 // Check if the environment variable has been set, if `getenv` is available on the system. 158 if ( function_exists( 'getenv' ) ) { 159 $has_env = getenv( 'WP_ENVIRONMENT_TYPES' ); 160 if ( false !== $has_env ) { 161 $wp_environments = explode( ',', $has_env ); 162 } 163 } 164 165 // Fetch the environment types from a constant, this overrides the global system variable. 166 if ( defined( 'WP_ENVIRONMENT_TYPES' ) ) { 167 $wp_environments = WP_ENVIRONMENT_TYPES; 168 } 169 170 /** 171 * Filters the list of supported environment types. 172 * 173 * This filter runs before it can be used by plugins. It is designed for non-web runtimes. 174 * 175 * @since 5.5.0 176 * 177 * @param array $wp_environments The list of environment types. Possible values 178 * include 'development', 'staging', 'production'. 179 */ 180 $wp_environments = apply_filters( 'wp_environment_types', $wp_environments ); 181 182 // Check if the environment variable has been set, if `getenv` is available on the system. 183 if ( function_exists( 'getenv' ) ) { 184 $has_env = getenv( 'WP_ENVIRONMENT_TYPE' ); 185 if ( false !== $has_env ) { 186 $current_env = $has_env; 187 } 188 } 189 190 // Fetch the environment from a constant, this overrides the global system variable. 191 if ( defined( 'WP_ENVIRONMENT_TYPE' ) ) { 192 $current_env = WP_ENVIRONMENT_TYPE; 193 } 194 195 /** 196 * Filters the current environment type. 197 * 198 * This filter runs before it can be used by plugins. It is designed for 199 * non-web runtimes. The value returned by this filter has a priority over both 200 * the `WP_ENVIRONMENT_TYPE` system variable and a constant of the same name. 201 * 202 * @since 5.5.0 203 * 204 * @param string $current_env The current environment type. Possible values 205 * include 'development', 'staging', 'production'. 206 */ 207 $current_env = apply_filters( 'wp_get_environment_type', $current_env ); 208 209 // Make sure the environment is an allowed one, and not accidentally set to an invalid value. 210 if ( ! in_array( $current_env, $wp_environments, true ) ) { 211 $current_env = 'production'; 212 } 213 214 return $current_env; 215 } 216 217 /** 218 * Don't load all of WordPress when handling a favicon.ico request. 219 * 220 * Instead, send the headers for a zero-length favicon and bail. 221 * 222 * @since 3.0.0 223 * @deprecated 5.4.0 Deprecated in favor of do_favicon(). 224 */ 225 function wp_favicon_request() { 226 if ( '/favicon.ico' === $_SERVER['REQUEST_URI'] ) { 227 header( 'Content-Type: image/vnd.microsoft.icon' ); 228 exit; 229 } 230 } 231 232 /** 233 * Die with a maintenance message when conditions are met. 234 * 235 * The default message can be replaced by using a drop-in (maintenance.php in 236 * the wp-content directory). 237 * 238 * @since 3.0.0 239 * @access private 240 */ 241 function wp_maintenance() { 242 // Return if maintenance mode is disabled. 243 if ( ! wp_is_maintenance_mode() ) { 244 return; 245 } 246 247 if ( file_exists( WP_CONTENT_DIR . '/maintenance.php' ) ) { 248 require_once WP_CONTENT_DIR . '/maintenance.php'; 249 die(); 250 } 251 252 require_once ABSPATH . WPINC . '/functions.php'; 253 wp_load_translations_early(); 254 255 header( 'Retry-After: 600' ); 256 257 wp_die( 258 __( 'Briefly unavailable for scheduled maintenance. Check back in a minute.' ), 259 __( 'Maintenance' ), 260 503 261 ); 262 } 263 264 /** 265 * Check if maintenance mode is enabled. 266 * 267 * Checks for a file in the WordPress root directory named ".maintenance". 268 * This file will contain the variable $upgrading, set to the time the file 269 * was created. If the file was created less than 10 minutes ago, WordPress 270 * is in maintenance mode. 271 * 272 * @since 5.5.0 273 * 274 * @global int $upgrading The Unix timestamp marking when upgrading WordPress began. 275 * 276 * @return bool True if maintenance mode is enabled, false otherwise. 277 */ 278 function wp_is_maintenance_mode() { 279 global $upgrading; 280 281 if ( ! file_exists( ABSPATH . '.maintenance' ) || wp_installing() ) { 282 return false; 283 } 284 285 require ABSPATH . '.maintenance'; 286 // If the $upgrading timestamp is older than 10 minutes, consider maintenance over. 287 if ( ( time() - $upgrading ) >= 10 * MINUTE_IN_SECONDS ) { 288 return false; 289 } 290 291 /** 292 * Filters whether to enable maintenance mode. 293 * 294 * This filter runs before it can be used by plugins. It is designed for 295 * non-web runtimes. If this filter returns true, maintenance mode will be 296 * active and the request will end. If false, the request will be allowed to 297 * continue processing even if maintenance mode should be active. 298 * 299 * @since 4.6.0 300 * 301 * @param bool $enable_checks Whether to enable maintenance mode. Default true. 302 * @param int $upgrading The timestamp set in the .maintenance file. 303 */ 304 if ( ! apply_filters( 'enable_maintenance_mode', true, $upgrading ) ) { 305 return false; 306 } 307 308 return true; 309 } 310 311 /** 312 * Start the WordPress micro-timer. 313 * 314 * @since 0.71 315 * @access private 316 * 317 * @global float $timestart Unix timestamp set at the beginning of the page load. 318 * @see timer_stop() 319 * 320 * @return bool Always returns true. 321 */ 322 function timer_start() { 323 global $timestart; 324 $timestart = microtime( true ); 325 return true; 326 } 327 328 /** 329 * Retrieve or display the time from the page start to when function is called. 330 * 331 * @since 0.71 332 * 333 * @global float $timestart Seconds from when timer_start() is called. 334 * @global float $timeend Seconds from when function is called. 335 * 336 * @param int|bool $display Whether to echo or return the results. Accepts 0|false for return, 337 * 1|true for echo. Default 0|false. 338 * @param int $precision The number of digits from the right of the decimal to display. 339 * Default 3. 340 * @return string The "second.microsecond" finished time calculation. The number is formatted 341 * for human consumption, both localized and rounded. 342 */ 343 function timer_stop( $display = 0, $precision = 3 ) { 344 global $timestart, $timeend; 345 $timeend = microtime( true ); 346 $timetotal = $timeend - $timestart; 347 $r = ( function_exists( 'number_format_i18n' ) ) ? number_format_i18n( $timetotal, $precision ) : number_format( $timetotal, $precision ); 348 if ( $display ) { 349 echo $r; 350 } 351 return $r; 352 } 353 354 /** 355 * Set PHP error reporting based on WordPress debug settings. 356 * 357 * Uses three constants: `WP_DEBUG`, `WP_DEBUG_DISPLAY`, and `WP_DEBUG_LOG`. 358 * All three can be defined in wp-config.php. By default, `WP_DEBUG` and 359 * `WP_DEBUG_LOG` are set to false, and `WP_DEBUG_DISPLAY` is set to true. 360 * 361 * When `WP_DEBUG` is true, all PHP notices are reported. WordPress will also 362 * display internal notices: when a deprecated WordPress function, function 363 * argument, or file is used. Deprecated code may be removed from a later 364 * version. 365 * 366 * It is strongly recommended that plugin and theme developers use `WP_DEBUG` 367 * in their development environments. 368 * 369 * `WP_DEBUG_DISPLAY` and `WP_DEBUG_LOG` perform no function unless `WP_DEBUG` 370 * is true. 371 * 372 * When `WP_DEBUG_DISPLAY` is true, WordPress will force errors to be displayed. 373 * `WP_DEBUG_DISPLAY` defaults to true. Defining it as null prevents WordPress 374 * from changing the global configuration setting. Defining `WP_DEBUG_DISPLAY` 375 * as false will force errors to be hidden. 376 * 377 * When `WP_DEBUG_LOG` is true, errors will be logged to `wp-content/debug.log`. 378 * When `WP_DEBUG_LOG` is a valid path, errors will be logged to the specified file. 379 * 380 * Errors are never displayed for XML-RPC, REST, and Ajax requests. 381 * 382 * @since 3.0.0 383 * @since 5.1.0 `WP_DEBUG_LOG` can be a file path. 384 * @access private 385 */ 386 function wp_debug_mode() { 387 /** 388 * Filters whether to allow the debug mode check to occur. 389 * 390 * This filter runs before it can be used by plugins. It is designed for 391 * non-web run-times. Returning false causes the `WP_DEBUG` and related 392 * constants to not be checked and the default PHP values for errors 393 * will be used unless you take care to update them yourself. 394 * 395 * @since 4.6.0 396 * 397 * @param bool $enable_debug_mode Whether to enable debug mode checks to occur. Default true. 398 */ 399 if ( ! apply_filters( 'enable_wp_debug_mode_checks', true ) ) { 400 return; 401 } 402 403 if ( WP_DEBUG ) { 404 error_reporting( E_ALL ); 405 406 if ( WP_DEBUG_DISPLAY ) { 407 ini_set( 'display_errors', 1 ); 408 } elseif ( null !== WP_DEBUG_DISPLAY ) { 409 ini_set( 'display_errors', 0 ); 410 } 411 412 if ( in_array( strtolower( (string) WP_DEBUG_LOG ), array( 'true', '1' ), true ) ) { 413 $log_path = WP_CONTENT_DIR . '/debug.log'; 414 } elseif ( is_string( WP_DEBUG_LOG ) ) { 415 $log_path = WP_DEBUG_LOG; 416 } else { 417 $log_path = false; 418 } 419 420 if ( $log_path ) { 421 ini_set( 'log_errors', 1 ); 422 ini_set( 'error_log', $log_path ); 423 } 424 } else { 425 error_reporting( E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR ); 426 } 427 428 if ( defined( 'XMLRPC_REQUEST' ) || defined( 'REST_REQUEST' ) || ( defined( 'WP_INSTALLING' ) && WP_INSTALLING ) || wp_doing_ajax() || wp_is_json_request() ) { 429 ini_set( 'display_errors', 0 ); 430 } 431 } 432 433 /** 434 * Set the location of the language directory. 435 * 436 * To set directory manually, define the `WP_LANG_DIR` constant 437 * in wp-config.php. 438 * 439 * If the language directory exists within `WP_CONTENT_DIR`, it 440 * is used. Otherwise the language directory is assumed to live 441 * in `WPINC`. 442 * 443 * @since 3.0.0 444 * @access private 445 */ 446 function wp_set_lang_dir() { 447 if ( ! defined( 'WP_LANG_DIR' ) ) { 448 if ( file_exists( WP_CONTENT_DIR . '/languages' ) && @is_dir( WP_CONTENT_DIR . '/languages' ) || ! @is_dir( ABSPATH . WPINC . '/languages' ) ) { 449 /** 450 * Server path of the language directory. 451 * 452 * No leading slash, no trailing slash, full path, not relative to ABSPATH 453 * 454 * @since 2.1.0 455 */ 456 define( 'WP_LANG_DIR', WP_CONTENT_DIR . '/languages' ); 457 if ( ! defined( 'LANGDIR' ) ) { 458 // Old static relative path maintained for limited backward compatibility - won't work in some cases. 459 define( 'LANGDIR', 'wp-content/languages' ); 460 } 461 } else { 462 /** 463 * Server path of the language directory. 464 * 465 * No leading slash, no trailing slash, full path, not relative to `ABSPATH`. 466 * 467 * @since 2.1.0 468 */ 469 define( 'WP_LANG_DIR', ABSPATH . WPINC . '/languages' ); 470 if ( ! defined( 'LANGDIR' ) ) { 471 // Old relative path maintained for backward compatibility. 472 define( 'LANGDIR', WPINC . '/languages' ); 473 } 474 } 475 } 476 } 477 478 /** 479 * Load the database class file and instantiate the `$wpdb` global. 480 * 481 * @since 2.5.0 482 * 483 * @global wpdb $wpdb WordPress database abstraction object. 484 */ 485 function require_wp_db() { 486 global $wpdb; 487 488 require_once ABSPATH . WPINC . '/wp-db.php'; 489 if ( file_exists( WP_CONTENT_DIR . '/db.php' ) ) { 490 require_once WP_CONTENT_DIR . '/db.php'; 491 } 492 493 if ( isset( $wpdb ) ) { 494 return; 495 } 496 497 $dbuser = defined( 'DB_USER' ) ? DB_USER : ''; 498 $dbpassword = defined( 'DB_PASSWORD' ) ? DB_PASSWORD : ''; 499 $dbname = defined( 'DB_NAME' ) ? DB_NAME : ''; 500 $dbhost = defined( 'DB_HOST' ) ? DB_HOST : ''; 501 502 $wpdb = new wpdb( $dbuser, $dbpassword, $dbname, $dbhost ); 503 } 504 505 /** 506 * Set the database table prefix and the format specifiers for database 507 * table columns. 508 * 509 * Columns not listed here default to `%s`. 510 * 511 * @since 3.0.0 512 * @access private 513 * 514 * @global wpdb $wpdb WordPress database abstraction object. 515 * @global string $table_prefix The database table prefix. 516 */ 517 function wp_set_wpdb_vars() { 518 global $wpdb, $table_prefix; 519 if ( ! empty( $wpdb->error ) ) { 520 dead_db(); 521 } 522 523 $wpdb->field_types = array( 524 'post_author' => '%d', 525 'post_parent' => '%d', 526 'menu_order' => '%d', 527 'term_id' => '%d', 528 'term_group' => '%d', 529 'term_taxonomy_id' => '%d', 530 'parent' => '%d', 531 'count' => '%d', 532 'object_id' => '%d', 533 'term_order' => '%d', 534 'ID' => '%d', 535 'comment_ID' => '%d', 536 'comment_post_ID' => '%d', 537 'comment_parent' => '%d', 538 'user_id' => '%d', 539 'link_id' => '%d', 540 'link_owner' => '%d', 541 'link_rating' => '%d', 542 'option_id' => '%d', 543 'blog_id' => '%d', 544 'meta_id' => '%d', 545 'post_id' => '%d', 546 'user_status' => '%d', 547 'umeta_id' => '%d', 548 'comment_karma' => '%d', 549 'comment_count' => '%d', 550 // Multisite: 551 'active' => '%d', 552 'cat_id' => '%d', 553 'deleted' => '%d', 554 'lang_id' => '%d', 555 'mature' => '%d', 556 'public' => '%d', 557 'site_id' => '%d', 558 'spam' => '%d', 559 ); 560 561 $prefix = $wpdb->set_prefix( $table_prefix ); 562 563 if ( is_wp_error( $prefix ) ) { 564 wp_load_translations_early(); 565 wp_die( 566 sprintf( 567 /* translators: 1: $table_prefix, 2: wp-config.php */ 568 __( '<strong>Error</strong>: %1$s in %2$s can only contain numbers, letters, and underscores.' ), 569 '<code>$table_prefix</code>', 570 '<code>wp-config.php</code>' 571 ) 572 ); 573 } 574 } 575 576 /** 577 * Toggle `$_wp_using_ext_object_cache` on and off without directly 578 * touching global. 579 * 580 * @since 3.7.0 581 * 582 * @global bool $_wp_using_ext_object_cache 583 * 584 * @param bool $using Whether external object cache is being used. 585 * @return bool The current 'using' setting. 586 */ 587 function wp_using_ext_object_cache( $using = null ) { 588 global $_wp_using_ext_object_cache; 589 $current_using = $_wp_using_ext_object_cache; 590 if ( null !== $using ) { 591 $_wp_using_ext_object_cache = $using; 592 } 593 return $current_using; 594 } 595 596 /** 597 * Start the WordPress object cache. 598 * 599 * If an object-cache.php file exists in the wp-content directory, 600 * it uses that drop-in as an external object cache. 601 * 602 * @since 3.0.0 603 * @access private 604 * 605 * @global array $wp_filter Stores all of the filters. 606 */ 607 function wp_start_object_cache() { 608 global $wp_filter; 609 static $first_init = true; 610 611 // Only perform the following checks once. 612 if ( $first_init ) { 613 if ( ! function_exists( 'wp_cache_init' ) ) { 614 /* 615 * This is the normal situation. First-run of this function. No 616 * caching backend has been loaded. 617 * 618 * We try to load a custom caching backend, and then, if it 619 * results in a wp_cache_init() function existing, we note 620 * that an external object cache is being used. 621 */ 622 if ( file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) { 623 require_once WP_CONTENT_DIR . '/object-cache.php'; 624 if ( function_exists( 'wp_cache_init' ) ) { 625 wp_using_ext_object_cache( true ); 626 } 627 628 // Re-initialize any hooks added manually by object-cache.php. 629 if ( $wp_filter ) { 630 $wp_filter = WP_Hook::build_preinitialized_hooks( $wp_filter ); 631 } 632 } 633 } elseif ( ! wp_using_ext_object_cache() && file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) { 634 /* 635 * Sometimes advanced-cache.php can load object-cache.php before 636 * this function is run. This breaks the function_exists() check 637 * above and can result in wp_using_ext_object_cache() returning 638 * false when actually an external cache is in use. 639 */ 640 wp_using_ext_object_cache( true ); 641 } 642 } 643 644 if ( ! wp_using_ext_object_cache() ) { 645 require_once ABSPATH . WPINC . '/cache.php'; 646 } 647 648 require_once ABSPATH . WPINC . '/cache-compat.php'; 649 650 /* 651 * If cache supports reset, reset instead of init if already 652 * initialized. Reset signals to the cache that global IDs 653 * have changed and it may need to update keys and cleanup caches. 654 */ 655 if ( ! $first_init && function_exists( 'wp_cache_switch_to_blog' ) ) { 656 wp_cache_switch_to_blog( get_current_blog_id() ); 657 } elseif ( function_exists( 'wp_cache_init' ) ) { 658 wp_cache_init(); 659 } 660 661 if ( function_exists( 'wp_cache_add_global_groups' ) ) { 662 wp_cache_add_global_groups( array( 'users', 'userlogins', 'usermeta', 'user_meta', 'useremail', 'userslugs', 'site-transient', 'site-options', 'blog-lookup', 'blog-details', 'site-details', 'rss', 'global-posts', 'blog-id-cache', 'networks', 'sites', 'blog_meta' ) ); 663 wp_cache_add_non_persistent_groups( array( 'counts', 'plugins' ) ); 664 } 665 666 $first_init = false; 667 } 668 669 /** 670 * Redirect to the installer if WordPress is not installed. 671 * 672 * Dies with an error message when Multisite is enabled. 673 * 674 * @since 3.0.0 675 * @access private 676 */ 677 function wp_not_installed() { 678 if ( is_multisite() ) { 679 if ( ! is_blog_installed() && ! wp_installing() ) { 680 nocache_headers(); 681 682 wp_die( __( 'The site you have requested is not installed properly. Please contact the system administrator.' ) ); 683 } 684 } elseif ( ! is_blog_installed() && ! wp_installing() ) { 685 nocache_headers(); 686 687 require ABSPATH . WPINC . '/kses.php'; 688 require ABSPATH . WPINC . '/pluggable.php'; 689 690 $link = wp_guess_url() . '/wp-admin/install.php'; 691 692 wp_redirect( $link ); 693 die(); 694 } 695 } 696 697 /** 698 * Retrieve an array of must-use plugin files. 699 * 700 * The default directory is wp-content/mu-plugins. To change the default 701 * directory manually, define `WPMU_PLUGIN_DIR` and `WPMU_PLUGIN_URL` 702 * in wp-config.php. 703 * 704 * @since 3.0.0 705 * @access private 706 * 707 * @return string[] Array of absolute paths of files to include. 708 */ 709 function wp_get_mu_plugins() { 710 $mu_plugins = array(); 711 if ( ! is_dir( WPMU_PLUGIN_DIR ) ) { 712 return $mu_plugins; 713 } 714 $dh = opendir( WPMU_PLUGIN_DIR ); 715 if ( ! $dh ) { 716 return $mu_plugins; 717 } 718 while ( ( $plugin = readdir( $dh ) ) !== false ) { 719 if ( '.php' === substr( $plugin, -4 ) ) { 720 $mu_plugins[] = WPMU_PLUGIN_DIR . '/' . $plugin; 721 } 722 } 723 closedir( $dh ); 724 sort( $mu_plugins ); 725 726 return $mu_plugins; 727 } 728 729 /** 730 * Retrieve an array of active and valid plugin files. 731 * 732 * While upgrading or installing WordPress, no plugins are returned. 733 * 734 * The default directory is `wp-content/plugins`. To change the default 735 * directory manually, define `WP_PLUGIN_DIR` and `WP_PLUGIN_URL` 736 * in `wp-config.php`. 737 * 738 * @since 3.0.0 739 * @access private 740 * 741 * @return string[] Array of paths to plugin files relative to the plugins directory. 742 */ 743 function wp_get_active_and_valid_plugins() { 744 $plugins = array(); 745 $active_plugins = (array) get_option( 'active_plugins', array() ); 746 747 // Check for hacks file if the option is enabled. 748 if ( get_option( 'hack_file' ) && file_exists( ABSPATH . 'my-hacks.php' ) ) { 749 _deprecated_file( 'my-hacks.php', '1.5.0' ); 750 array_unshift( $plugins, ABSPATH . 'my-hacks.php' ); 751 } 752 753 if ( empty( $active_plugins ) || wp_installing() ) { 754 return $plugins; 755 } 756 757 $network_plugins = is_multisite() ? wp_get_active_network_plugins() : false; 758 759 foreach ( $active_plugins as $plugin ) { 760 if ( ! validate_file( $plugin ) // $plugin must validate as file. 761 && '.php' === substr( $plugin, -4 ) // $plugin must end with '.php'. 762 && file_exists( WP_PLUGIN_DIR . '/' . $plugin ) // $plugin must exist. 763 // Not already included as a network plugin. 764 && ( ! $network_plugins || ! in_array( WP_PLUGIN_DIR . '/' . $plugin, $network_plugins, true ) ) 765 ) { 766 $plugins[] = WP_PLUGIN_DIR . '/' . $plugin; 767 } 768 } 769 770 /* 771 * Remove plugins from the list of active plugins when we're on an endpoint 772 * that should be protected against WSODs and the plugin is paused. 773 */ 774 if ( wp_is_recovery_mode() ) { 775 $plugins = wp_skip_paused_plugins( $plugins ); 776 } 777 778 return $plugins; 779 } 780 781 /** 782 * Filters a given list of plugins, removing any paused plugins from it. 783 * 784 * @since 5.2.0 785 * 786 * @param string[] $plugins Array of absolute plugin main file paths. 787 * @return string[] Filtered array of plugins, without any paused plugins. 788 */ 789 function wp_skip_paused_plugins( array $plugins ) { 790 $paused_plugins = wp_paused_plugins()->get_all(); 791 792 if ( empty( $paused_plugins ) ) { 793 return $plugins; 794 } 795 796 foreach ( $plugins as $index => $plugin ) { 797 list( $plugin ) = explode( '/', plugin_basename( $plugin ) ); 798 799 if ( array_key_exists( $plugin, $paused_plugins ) ) { 800 unset( $plugins[ $index ] ); 801 802 // Store list of paused plugins for displaying an admin notice. 803 $GLOBALS['_paused_plugins'][ $plugin ] = $paused_plugins[ $plugin ]; 804 } 805 } 806 807 return $plugins; 808 } 809 810 /** 811 * Retrieves an array of active and valid themes. 812 * 813 * While upgrading or installing WordPress, no themes are returned. 814 * 815 * @since 5.1.0 816 * @access private 817 * 818 * @return string[] Array of absolute paths to theme directories. 819 */ 820 function wp_get_active_and_valid_themes() { 821 global $pagenow; 822 823 $themes = array(); 824 825 if ( wp_installing() && 'wp-activate.php' !== $pagenow ) { 826 return $themes; 827 } 828 829 if ( TEMPLATEPATH !== STYLESHEETPATH ) { 830 $themes[] = STYLESHEETPATH; 831 } 832 833 $themes[] = TEMPLATEPATH; 834 835 /* 836 * Remove themes from the list of active themes when we're on an endpoint 837 * that should be protected against WSODs and the theme is paused. 838 */ 839 if ( wp_is_recovery_mode() ) { 840 $themes = wp_skip_paused_themes( $themes ); 841 842 // If no active and valid themes exist, skip loading themes. 843 if ( empty( $themes ) ) { 844 add_filter( 'wp_using_themes', '__return_false' ); 845 } 846 } 847 848 return $themes; 849 } 850 851 /** 852 * Filters a given list of themes, removing any paused themes from it. 853 * 854 * @since 5.2.0 855 * 856 * @param string[] $themes Array of absolute theme directory paths. 857 * @return string[] Filtered array of absolute paths to themes, without any paused themes. 858 */ 859 function wp_skip_paused_themes( array $themes ) { 860 $paused_themes = wp_paused_themes()->get_all(); 861 862 if ( empty( $paused_themes ) ) { 863 return $themes; 864 } 865 866 foreach ( $themes as $index => $theme ) { 867 $theme = basename( $theme ); 868 869 if ( array_key_exists( $theme, $paused_themes ) ) { 870 unset( $themes[ $index ] ); 871 872 // Store list of paused themes for displaying an admin notice. 873 $GLOBALS['_paused_themes'][ $theme ] = $paused_themes[ $theme ]; 874 } 875 } 876 877 return $themes; 878 } 879 880 /** 881 * Is WordPress in Recovery Mode. 882 * 883 * In this mode, plugins or themes that cause WSODs will be paused. 884 * 885 * @since 5.2.0 886 * 887 * @return bool 888 */ 889 function wp_is_recovery_mode() { 890 return wp_recovery_mode()->is_active(); 891 } 892 893 /** 894 * Determines whether we are currently on an endpoint that should be protected against WSODs. 895 * 896 * @since 5.2.0 897 * 898 * @return bool True if the current endpoint should be protected. 899 */ 900 function is_protected_endpoint() { 901 // Protect login pages. 902 if ( isset( $GLOBALS['pagenow'] ) && 'wp-login.php' === $GLOBALS['pagenow'] ) { 903 return true; 904 } 905 906 // Protect the admin backend. 907 if ( is_admin() && ! wp_doing_ajax() ) { 908 return true; 909 } 910 911 // Protect Ajax actions that could help resolve a fatal error should be available. 912 if ( is_protected_ajax_action() ) { 913 return true; 914 } 915 916 /** 917 * Filters whether the current request is against a protected endpoint. 918 * 919 * This filter is only fired when an endpoint is requested which is not already protected by 920 * WordPress core. As such, it exclusively allows providing further protected endpoints in 921 * addition to the admin backend, login pages and protected Ajax actions. 922 * 923 * @since 5.2.0 924 * 925 * @param bool $is_protected_endpoint Whether the currently requested endpoint is protected. 926 * Default false. 927 */ 928 return (bool) apply_filters( 'is_protected_endpoint', false ); 929 } 930 931 /** 932 * Determines whether we are currently handling an Ajax action that should be protected against WSODs. 933 * 934 * @since 5.2.0 935 * 936 * @return bool True if the current Ajax action should be protected. 937 */ 938 function is_protected_ajax_action() { 939 if ( ! wp_doing_ajax() ) { 940 return false; 941 } 942 943 if ( ! isset( $_REQUEST['action'] ) ) { 944 return false; 945 } 946 947 $actions_to_protect = array( 948 'edit-theme-plugin-file', // Saving changes in the core code editor. 949 'heartbeat', // Keep the heart beating. 950 'install-plugin', // Installing a new plugin. 951 'install-theme', // Installing a new theme. 952 'search-plugins', // Searching in the list of plugins. 953 'search-install-plugins', // Searching for a plugin in the plugin install screen. 954 'update-plugin', // Update an existing plugin. 955 'update-theme', // Update an existing theme. 956 ); 957 958 /** 959 * Filters the array of protected Ajax actions. 960 * 961 * This filter is only fired when doing Ajax and the Ajax request has an 'action' property. 962 * 963 * @since 5.2.0 964 * 965 * @param string[] $actions_to_protect Array of strings with Ajax actions to protect. 966 */ 967 $actions_to_protect = (array) apply_filters( 'wp_protected_ajax_actions', $actions_to_protect ); 968 969 if ( ! in_array( $_REQUEST['action'], $actions_to_protect, true ) ) { 970 return false; 971 } 972 973 return true; 974 } 975 976 /** 977 * Set internal encoding. 978 * 979 * In most cases the default internal encoding is latin1, which is 980 * of no use, since we want to use the `mb_` functions for `utf-8` strings. 981 * 982 * @since 3.0.0 983 * @access private 984 */ 985 function wp_set_internal_encoding() { 986 if ( function_exists( 'mb_internal_encoding' ) ) { 987 $charset = get_option( 'blog_charset' ); 988 // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged 989 if ( ! $charset || ! @mb_internal_encoding( $charset ) ) { 990 mb_internal_encoding( 'UTF-8' ); 991 } 992 } 993 } 994 995 /** 996 * Add magic quotes to `$_GET`, `$_POST`, `$_COOKIE`, and `$_SERVER`. 997 * 998 * Also forces `$_REQUEST` to be `$_GET + $_POST`. If `$_SERVER`, 999 * `$_COOKIE`, or `$_ENV` are needed, use those superglobals directly. 1000 * 1001 * @since 3.0.0 1002 * @access private 1003 */ 1004 function wp_magic_quotes() { 1005 // Escape with wpdb. 1006 $_GET = add_magic_quotes( $_GET ); 1007 $_POST = add_magic_quotes( $_POST ); 1008 $_COOKIE = add_magic_quotes( $_COOKIE ); 1009 $_SERVER = add_magic_quotes( $_SERVER ); 1010 1011 // Force REQUEST to be GET + POST. 1012 $_REQUEST = array_merge( $_GET, $_POST ); 1013 } 1014 1015 /** 1016 * Runs just before PHP shuts down execution. 1017 * 1018 * @since 1.2.0 1019 * @access private 1020 */ 1021 function shutdown_action_hook() { 1022 /** 1023 * Fires just before PHP shuts down execution. 1024 * 1025 * @since 1.2.0 1026 */ 1027 do_action( 'shutdown' ); 1028 1029 wp_cache_close(); 1030 } 1031 1032 /** 1033 * Copy an object. 1034 * 1035 * @since 2.7.0 1036 * @deprecated 3.2.0 1037 * 1038 * @param object $object The object to clone. 1039 * @return object The cloned object. 1040 */ 1041 function wp_clone( $object ) { 1042 // Use parens for clone to accommodate PHP 4. See #17880. 1043 return clone( $object ); 1044 } 1045 1046 /** 1047 * Determines whether the current request is for an administrative interface page. 1048 * 1049 * Does not check if the user is an administrator; use current_user_can() 1050 * for checking roles and capabilities. 1051 * 1052 * For more information on this and similar theme functions, check out 1053 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ 1054 * Conditional Tags} article in the Theme Developer Handbook. 1055 * 1056 * @since 1.5.1 1057 * 1058 * @global WP_Screen $current_screen WordPress current screen object. 1059 * 1060 * @return bool True if inside WordPress administration interface, false otherwise. 1061 */ 1062 function is_admin() { 1063 if ( isset( $GLOBALS['current_screen'] ) ) { 1064 return $GLOBALS['current_screen']->in_admin(); 1065 } elseif ( defined( 'WP_ADMIN' ) ) { 1066 return WP_ADMIN; 1067 } 1068 1069 return false; 1070 } 1071 1072 /** 1073 * Whether the current request is for a site's administrative interface. 1074 * 1075 * e.g. `/wp-admin/` 1076 * 1077 * Does not check if the user is an administrator; use current_user_can() 1078 * for checking roles and capabilities. 1079 * 1080 * @since 3.1.0 1081 * 1082 * @global WP_Screen $current_screen WordPress current screen object. 1083 * 1084 * @return bool True if inside WordPress blog administration pages. 1085 */ 1086 function is_blog_admin() { 1087 if ( isset( $GLOBALS['current_screen'] ) ) { 1088 return $GLOBALS['current_screen']->in_admin( 'site' ); 1089 } elseif ( defined( 'WP_BLOG_ADMIN' ) ) { 1090 return WP_BLOG_ADMIN; 1091 } 1092 1093 return false; 1094 } 1095 1096 /** 1097 * Whether the current request is for the network administrative interface. 1098 * 1099 * e.g. `/wp-admin/network/` 1100 * 1101 * Does not check if the user is an administrator; use current_user_can() 1102 * for checking roles and capabilities. 1103 * 1104 * Does not check if the site is a Multisite network; use is_multisite() 1105 * for checking if Multisite is enabled. 1106 * 1107 * @since 3.1.0 1108 * 1109 * @global WP_Screen $current_screen WordPress current screen object. 1110 * 1111 * @return bool True if inside WordPress network administration pages. 1112 */ 1113 function is_network_admin() { 1114 if ( isset( $GLOBALS['current_screen'] ) ) { 1115 return $GLOBALS['current_screen']->in_admin( 'network' ); 1116 } elseif ( defined( 'WP_NETWORK_ADMIN' ) ) { 1117 return WP_NETWORK_ADMIN; 1118 } 1119 1120 return false; 1121 } 1122 1123 /** 1124 * Whether the current request is for a user admin screen. 1125 * 1126 * e.g. `/wp-admin/user/` 1127 * 1128 * Does not check if the user is an administrator; use current_user_can() 1129 * for checking roles and capabilities. 1130 * 1131 * @since 3.1.0 1132 * 1133 * @global WP_Screen $current_screen WordPress current screen object. 1134 * 1135 * @return bool True if inside WordPress user administration pages. 1136 */ 1137 function is_user_admin() { 1138 if ( isset( $GLOBALS['current_screen'] ) ) { 1139 return $GLOBALS['current_screen']->in_admin( 'user' ); 1140 } elseif ( defined( 'WP_USER_ADMIN' ) ) { 1141 return WP_USER_ADMIN; 1142 } 1143 1144 return false; 1145 } 1146 1147 /** 1148 * If Multisite is enabled. 1149 * 1150 * @since 3.0.0 1151 * 1152 * @return bool True if Multisite is enabled, false otherwise. 1153 */ 1154 function is_multisite() { 1155 if ( defined( 'MULTISITE' ) ) { 1156 return MULTISITE; 1157 } 1158 1159 if ( defined( 'SUBDOMAIN_INSTALL' ) || defined( 'VHOST' ) || defined( 'SUNRISE' ) ) { 1160 return true; 1161 } 1162 1163 return false; 1164 } 1165 1166 /** 1167 * Retrieve the current site ID. 1168 * 1169 * @since 3.1.0 1170 * 1171 * @global int $blog_id 1172 * 1173 * @return int Site ID. 1174 */ 1175 function get_current_blog_id() { 1176 global $blog_id; 1177 return absint( $blog_id ); 1178 } 1179 1180 /** 1181 * Retrieves the current network ID. 1182 * 1183 * @since 4.6.0 1184 * 1185 * @return int The ID of the current network. 1186 */ 1187 function get_current_network_id() { 1188 if ( ! is_multisite() ) { 1189 return 1; 1190 } 1191 1192 $current_network = get_network(); 1193 1194 if ( ! isset( $current_network->id ) ) { 1195 return get_main_network_id(); 1196 } 1197 1198 return absint( $current_network->id ); 1199 } 1200 1201 /** 1202 * Attempt an early load of translations. 1203 * 1204 * Used for errors encountered during the initial loading process, before 1205 * the locale has been properly detected and loaded. 1206 * 1207 * Designed for unusual load sequences (like setup-config.php) or for when 1208 * the script will then terminate with an error, otherwise there is a risk 1209 * that a file can be double-included. 1210 * 1211 * @since 3.4.0 1212 * @access private 1213 * 1214 * @global WP_Locale $wp_locale WordPress date and time locale object. 1215 */ 1216 function wp_load_translations_early() { 1217 global $wp_locale; 1218 1219 static $loaded = false; 1220 if ( $loaded ) { 1221 return; 1222 } 1223 $loaded = true; 1224 1225 if ( function_exists( 'did_action' ) && did_action( 'init' ) ) { 1226 return; 1227 } 1228 1229 // We need $wp_local_package. 1230 require ABSPATH . WPINC . '/version.php'; 1231 1232 // Translation and localization. 1233 require_once ABSPATH . WPINC . '/pomo/mo.php'; 1234 require_once ABSPATH . WPINC . '/l10n.php'; 1235 require_once ABSPATH . WPINC . '/class-wp-locale.php'; 1236 require_once ABSPATH . WPINC . '/class-wp-locale-switcher.php'; 1237 1238 // General libraries. 1239 require_once ABSPATH . WPINC . '/plugin.php'; 1240 1241 $locales = array(); 1242 $locations = array(); 1243 1244 while ( true ) { 1245 if ( defined( 'WPLANG' ) ) { 1246 if ( '' === WPLANG ) { 1247 break; 1248 } 1249 $locales[] = WPLANG; 1250 } 1251 1252 if ( isset( $wp_local_package ) ) { 1253 $locales[] = $wp_local_package; 1254 } 1255 1256 if ( ! $locales ) { 1257 break; 1258 } 1259 1260 if ( defined( 'WP_LANG_DIR' ) && @is_dir( WP_LANG_DIR ) ) { 1261 $locations[] = WP_LANG_DIR; 1262 } 1263 1264 if ( defined( 'WP_CONTENT_DIR' ) && @is_dir( WP_CONTENT_DIR . '/languages' ) ) { 1265 $locations[] = WP_CONTENT_DIR . '/languages'; 1266 } 1267 1268 if ( @is_dir( ABSPATH . 'wp-content/languages' ) ) { 1269 $locations[] = ABSPATH . 'wp-content/languages'; 1270 } 1271 1272 if ( @is_dir( ABSPATH . WPINC . '/languages' ) ) { 1273 $locations[] = ABSPATH . WPINC . '/languages'; 1274 } 1275 1276 if ( ! $locations ) { 1277 break; 1278 } 1279 1280 $locations = array_unique( $locations ); 1281 1282 foreach ( $locales as $locale ) { 1283 foreach ( $locations as $location ) { 1284 if ( file_exists( $location . '/' . $locale . '.mo' ) ) { 1285 load_textdomain( 'default', $location . '/' . $locale . '.mo' ); 1286 if ( defined( 'WP_SETUP_CONFIG' ) && file_exists( $location . '/admin-' . $locale . '.mo' ) ) { 1287 load_textdomain( 'default', $location . '/admin-' . $locale . '.mo' ); 1288 } 1289 break 2; 1290 } 1291 } 1292 } 1293 1294 break; 1295 } 1296 1297 $wp_locale = new WP_Locale(); 1298 } 1299 1300 /** 1301 * Check or set whether WordPress is in "installation" mode. 1302 * 1303 * If the `WP_INSTALLING` constant is defined during the bootstrap, `wp_installing()` will default to `true`. 1304 * 1305 * @since 4.4.0 1306 * 1307 * @param bool $is_installing Optional. True to set WP into Installing mode, false to turn Installing mode off. 1308 * Omit this parameter if you only want to fetch the current status. 1309 * @return bool True if WP is installing, otherwise false. When a `$is_installing` is passed, the function will 1310 * report whether WP was in installing mode prior to the change to `$is_installing`. 1311 */ 1312 function wp_installing( $is_installing = null ) { 1313 static $installing = null; 1314 1315 // Support for the `WP_INSTALLING` constant, defined before WP is loaded. 1316 if ( is_null( $installing ) ) { 1317 $installing = defined( 'WP_INSTALLING' ) && WP_INSTALLING; 1318 } 1319 1320 if ( ! is_null( $is_installing ) ) { 1321 $old_installing = $installing; 1322 $installing = $is_installing; 1323 return (bool) $old_installing; 1324 } 1325 1326 return (bool) $installing; 1327 } 1328 1329 /** 1330 * Determines if SSL is used. 1331 * 1332 * @since 2.6.0 1333 * @since 4.6.0 Moved from functions.php to load.php. 1334 * 1335 * @return bool True if SSL, otherwise false. 1336 */ 1337 function is_ssl() { 1338 if ( isset( $_SERVER['HTTPS'] ) ) { 1339 if ( 'on' === strtolower( $_SERVER['HTTPS'] ) ) { 1340 return true; 1341 } 1342 1343 if ( '1' == $_SERVER['HTTPS'] ) { 1344 return true; 1345 } 1346 } elseif ( isset( $_SERVER['SERVER_PORT'] ) && ( '443' == $_SERVER['SERVER_PORT'] ) ) { 1347 return true; 1348 } 1349 return false; 1350 } 1351 1352 /** 1353 * Converts a shorthand byte value to an integer byte value. 1354 * 1355 * @since 2.3.0 1356 * @since 4.6.0 Moved from media.php to load.php. 1357 * 1358 * @link https://www.php.net/manual/en/function.ini-get.php 1359 * @link https://www.php.net/manual/en/faq.using.php#faq.using.shorthandbytes 1360 * 1361 * @param string $value A (PHP ini) byte value, either shorthand or ordinary. 1362 * @return int An integer byte value. 1363 */ 1364 function wp_convert_hr_to_bytes( $value ) { 1365 $value = strtolower( trim( $value ) ); 1366 $bytes = (int) $value; 1367 1368 if ( false !== strpos( $value, 'g' ) ) { 1369 $bytes *= GB_IN_BYTES; 1370 } elseif ( false !== strpos( $value, 'm' ) ) { 1371 $bytes *= MB_IN_BYTES; 1372 } elseif ( false !== strpos( $value, 'k' ) ) { 1373 $bytes *= KB_IN_BYTES; 1374 } 1375 1376 // Deal with large (float) values which run into the maximum integer size. 1377 return min( $bytes, PHP_INT_MAX ); 1378 } 1379 1380 /** 1381 * Determines whether a PHP ini value is changeable at runtime. 1382 * 1383 * @since 4.6.0 1384 * 1385 * @link https://www.php.net/manual/en/function.ini-get-all.php 1386 * 1387 * @param string $setting The name of the ini setting to check. 1388 * @return bool True if the value is changeable at runtime. False otherwise. 1389 */ 1390 function wp_is_ini_value_changeable( $setting ) { 1391 static $ini_all; 1392 1393 if ( ! isset( $ini_all ) ) { 1394 $ini_all = false; 1395 // Sometimes `ini_get_all()` is disabled via the `disable_functions` option for "security purposes". 1396 if ( function_exists( 'ini_get_all' ) ) { 1397 $ini_all = ini_get_all(); 1398 } 1399 } 1400 1401 // Bit operator to workaround https://bugs.php.net/bug.php?id=44936 which changes access level to 63 in PHP 5.2.6 - 5.2.17. 1402 if ( isset( $ini_all[ $setting ]['access'] ) && ( INI_ALL === ( $ini_all[ $setting ]['access'] & 7 ) || INI_USER === ( $ini_all[ $setting ]['access'] & 7 ) ) ) { 1403 return true; 1404 } 1405 1406 // If we were unable to retrieve the details, fail gracefully to assume it's changeable. 1407 if ( ! is_array( $ini_all ) ) { 1408 return true; 1409 } 1410 1411 return false; 1412 } 1413 1414 /** 1415 * Determines whether the current request is a WordPress Ajax request. 1416 * 1417 * @since 4.7.0 1418 * 1419 * @return bool True if it's a WordPress Ajax request, false otherwise. 1420 */ 1421 function wp_doing_ajax() { 1422 /** 1423 * Filters whether the current request is a WordPress Ajax request. 1424 * 1425 * @since 4.7.0 1426 * 1427 * @param bool $wp_doing_ajax Whether the current request is a WordPress Ajax request. 1428 */ 1429 return apply_filters( 'wp_doing_ajax', defined( 'DOING_AJAX' ) && DOING_AJAX ); 1430 } 1431 1432 /** 1433 * Determines whether the current request should use themes. 1434 * 1435 * @since 5.1.0 1436 * 1437 * @return bool True if themes should be used, false otherwise. 1438 */ 1439 function wp_using_themes() { 1440 /** 1441 * Filters whether the current request should use themes. 1442 * 1443 * @since 5.1.0 1444 * 1445 * @param bool $wp_using_themes Whether the current request should use themes. 1446 */ 1447 return apply_filters( 'wp_using_themes', defined( 'WP_USE_THEMES' ) && WP_USE_THEMES ); 1448 } 1449 1450 /** 1451 * Determines whether the current request is a WordPress cron request. 1452 * 1453 * @since 4.8.0 1454 * 1455 * @return bool True if it's a WordPress cron request, false otherwise. 1456 */ 1457 function wp_doing_cron() { 1458 /** 1459 * Filters whether the current request is a WordPress cron request. 1460 * 1461 * @since 4.8.0 1462 * 1463 * @param bool $wp_doing_cron Whether the current request is a WordPress cron request. 1464 */ 1465 return apply_filters( 'wp_doing_cron', defined( 'DOING_CRON' ) && DOING_CRON ); 1466 } 1467 1468 /** 1469 * Check whether variable is a WordPress Error. 1470 * 1471 * Returns true if $thing is an object of the WP_Error class. 1472 * 1473 * @since 2.1.0 1474 * 1475 * @param mixed $thing Check if unknown variable is a WP_Error object. 1476 * @return bool True, if WP_Error. False, if not WP_Error. 1477 */ 1478 function is_wp_error( $thing ) { 1479 return ( $thing instanceof WP_Error ); 1480 } 1481 1482 /** 1483 * Determines whether file modifications are allowed. 1484 * 1485 * @since 4.8.0 1486 * 1487 * @param string $context The usage context. 1488 * @return bool True if file modification is allowed, false otherwise. 1489 */ 1490 function wp_is_file_mod_allowed( $context ) { 1491 /** 1492 * Filters whether file modifications are allowed. 1493 * 1494 * @since 4.8.0 1495 * 1496 * @param bool $file_mod_allowed Whether file modifications are allowed. 1497 * @param string $context The usage context. 1498 */ 1499 return apply_filters( 'file_mod_allowed', ! defined( 'DISALLOW_FILE_MODS' ) || ! DISALLOW_FILE_MODS, $context ); 1500 } 1501 1502 /** 1503 * Start scraping edited file errors. 1504 * 1505 * @since 4.9.0 1506 */ 1507 function wp_start_scraping_edited_file_errors() { 1508 if ( ! isset( $_REQUEST['wp_scrape_key'] ) || ! isset( $_REQUEST['wp_scrape_nonce'] ) ) { 1509 return; 1510 } 1511 $key = substr( sanitize_key( wp_unslash( $_REQUEST['wp_scrape_key'] ) ), 0, 32 ); 1512 $nonce = wp_unslash( $_REQUEST['wp_scrape_nonce'] ); 1513 1514 if ( get_transient( 'scrape_key_' . $key ) !== $nonce ) { 1515 echo "###### wp_scraping_result_start:$key ######"; 1516 echo wp_json_encode( 1517 array( 1518 'code' => 'scrape_nonce_failure', 1519 'message' => __( 'Scrape nonce check failed. Please try again.' ), 1520 ) 1521 ); 1522 echo "###### wp_scraping_result_end:$key ######"; 1523 die(); 1524 } 1525 if ( ! defined( 'WP_SANDBOX_SCRAPING' ) ) { 1526 define( 'WP_SANDBOX_SCRAPING', true ); 1527 } 1528 register_shutdown_function( 'wp_finalize_scraping_edited_file_errors', $key ); 1529 } 1530 1531 /** 1532 * Finalize scraping for edited file errors. 1533 * 1534 * @since 4.9.0 1535 * 1536 * @param string $scrape_key Scrape key. 1537 */ 1538 function wp_finalize_scraping_edited_file_errors( $scrape_key ) { 1539 $error = error_get_last(); 1540 echo "\n###### wp_scraping_result_start:$scrape_key ######\n"; 1541 if ( ! empty( $error ) && in_array( $error['type'], array( E_CORE_ERROR, E_COMPILE_ERROR, E_ERROR, E_PARSE, E_USER_ERROR, E_RECOVERABLE_ERROR ), true ) ) { 1542 $error = str_replace( ABSPATH, '', $error ); 1543 echo wp_json_encode( $error ); 1544 } else { 1545 echo wp_json_encode( true ); 1546 } 1547 echo "\n###### wp_scraping_result_end:$scrape_key ######\n"; 1548 } 1549 1550 /** 1551 * Checks whether current request is a JSON request, or is expecting a JSON response. 1552 * 1553 * @since 5.0.0 1554 * 1555 * @return bool True if `Accepts` or `Content-Type` headers contain `application/json`. 1556 * False otherwise. 1557 */ 1558 function wp_is_json_request() { 1559 1560 if ( isset( $_SERVER['HTTP_ACCEPT'] ) && false !== strpos( $_SERVER['HTTP_ACCEPT'], 'application/json' ) ) { 1561 return true; 1562 } 1563 1564 if ( isset( $_SERVER['CONTENT_TYPE'] ) && 'application/json' === $_SERVER['CONTENT_TYPE'] ) { 1565 return true; 1566 } 1567 1568 return false; 1569 1570 } 1571 1572 /** 1573 * Checks whether current request is a JSONP request, or is expecting a JSONP response. 1574 * 1575 * @since 5.2.0 1576 * 1577 * @return bool True if JSONP request, false otherwise. 1578 */ 1579 function wp_is_jsonp_request() { 1580 if ( ! isset( $_GET['_jsonp'] ) ) { 1581 return false; 1582 } 1583 1584 if ( ! function_exists( 'wp_check_jsonp_callback' ) ) { 1585 require_once ABSPATH . WPINC . '/functions.php'; 1586 } 1587 1588 $jsonp_callback = $_GET['_jsonp']; 1589 if ( ! wp_check_jsonp_callback( $jsonp_callback ) ) { 1590 return false; 1591 } 1592 1593 /** This filter is documented in wp-includes/rest-api/class-wp-rest-server.php */ 1594 $jsonp_enabled = apply_filters( 'rest_jsonp_enabled', true ); 1595 1596 return $jsonp_enabled; 1597 1598 } 1599 1600 /** 1601 * Checks whether current request is an XML request, or is expecting an XML response. 1602 * 1603 * @since 5.2.0 1604 * 1605 * @return bool True if `Accepts` or `Content-Type` headers contain `text/xml` 1606 * or one of the related MIME types. False otherwise. 1607 */ 1608 function wp_is_xml_request() { 1609 $accepted = array( 1610 'text/xml', 1611 'application/rss+xml', 1612 'application/atom+xml', 1613 'application/rdf+xml', 1614 'text/xml+oembed', 1615 'application/xml+oembed', 1616 ); 1617 1618 if ( isset( $_SERVER['HTTP_ACCEPT'] ) ) { 1619 foreach ( $accepted as $type ) { 1620 if ( false !== strpos( $_SERVER['HTTP_ACCEPT'], $type ) ) { 1621 return true; 1622 } 1623 } 1624 } 1625 1626 if ( isset( $_SERVER['CONTENT_TYPE'] ) && in_array( $_SERVER['CONTENT_TYPE'], $accepted, true ) ) { 1627 return true; 1628 } 1629 1630 return false; 1631 }
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| Generated: Thu Jul 2 01:00:04 2020 | Cross-referenced by PHPXref 0.7.1 |