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PHP Cross Reference of WordPress Trunk (Updated Daily) |
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1 <?php 2 /** 3 * A simple set of functions to check our version 1.0 update service. 4 * 5 * @package WordPress 6 * @since 2.3.0 7 */ 8 9 /** 10 * Check WordPress version against the newest version. 11 * 12 * The WordPress version, PHP version, and locale is sent. 13 * 14 * Checks against the WordPress server at api.wordpress.org. Will only check 15 * if WordPress isn't installing. 16 * 17 * @since 2.3.0 18 * 19 * @global string $wp_version Used to check against the newest WordPress version. 20 * @global wpdb $wpdb WordPress database abstraction object. 21 * @global string $wp_local_package Locale code of the package. 22 * 23 * @param array $extra_stats Extra statistics to report to the WordPress.org API. 24 * @param bool $force_check Whether to bypass the transient cache and force a fresh update check. Defaults to false, true if $extra_stats is set. 25 */ 26 function wp_version_check( $extra_stats = array(), $force_check = false ) { 27 global $wpdb, $wp_local_package; 28 29 if ( wp_installing() ) { 30 return; 31 } 32 33 // Include an unmodified $wp_version. 34 require ABSPATH . WPINC . '/version.php'; 35 $php_version = PHP_VERSION; 36 37 $current = get_site_transient( 'update_core' ); 38 $translations = wp_get_installed_translations( 'core' ); 39 40 // Invalidate the transient when $wp_version changes. 41 if ( is_object( $current ) && $wp_version !== $current->version_checked ) { 42 $current = false; 43 } 44 45 if ( ! is_object( $current ) ) { 46 $current = new stdClass; 47 $current->updates = array(); 48 $current->version_checked = $wp_version; 49 } 50 51 if ( ! empty( $extra_stats ) ) { 52 $force_check = true; 53 } 54 55 // Wait 1 minute between multiple version check requests. 56 $timeout = MINUTE_IN_SECONDS; 57 $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked ); 58 59 if ( ! $force_check && $time_not_changed ) { 60 return; 61 } 62 63 /** 64 * Filters the locale requested for WordPress core translations. 65 * 66 * @since 2.8.0 67 * 68 * @param string $locale Current locale. 69 */ 70 $locale = apply_filters( 'core_version_check_locale', get_locale() ); 71 72 // Update last_checked for current to prevent multiple blocking requests if request hangs. 73 $current->last_checked = time(); 74 set_site_transient( 'update_core', $current ); 75 76 if ( method_exists( $wpdb, 'db_version' ) ) { 77 $mysql_version = preg_replace( '/[^0-9.].*/', '', $wpdb->db_version() ); 78 } else { 79 $mysql_version = 'N/A'; 80 } 81 82 if ( is_multisite() ) { 83 $num_blogs = get_blog_count(); 84 $wp_install = network_site_url(); 85 $multisite_enabled = 1; 86 } else { 87 $multisite_enabled = 0; 88 $num_blogs = 1; 89 $wp_install = home_url( '/' ); 90 } 91 92 $query = array( 93 'version' => $wp_version, 94 'php' => $php_version, 95 'locale' => $locale, 96 'mysql' => $mysql_version, 97 'local_package' => isset( $wp_local_package ) ? $wp_local_package : '', 98 'blogs' => $num_blogs, 99 'users' => get_user_count(), 100 'multisite_enabled' => $multisite_enabled, 101 'initial_db_version' => get_site_option( 'initial_db_version' ), 102 ); 103 104 /** 105 * Filters the query arguments sent as part of the core version check. 106 * 107 * WARNING: Changing this data may result in your site not receiving security updates. 108 * Please exercise extreme caution. 109 * 110 * @since 4.9.0 111 * 112 * @param array $query { 113 * Version check query arguments. 114 * 115 * @type string $version WordPress version number. 116 * @type string $php PHP version number. 117 * @type string $locale The locale to retrieve updates for. 118 * @type string $mysql MySQL version number. 119 * @type string $local_package The value of the $wp_local_package global, when set. 120 * @type int $blogs Number of sites on this WordPress installation. 121 * @type int $users Number of users on this WordPress installation. 122 * @type int $multisite_enabled Whether this WordPress installation uses Multisite. 123 * @type int $initial_db_version Database version of WordPress at time of installation. 124 * } 125 */ 126 $query = apply_filters( 'core_version_check_query_args', $query ); 127 128 $post_body = array( 129 'translations' => wp_json_encode( $translations ), 130 ); 131 132 if ( is_array( $extra_stats ) ) { 133 $post_body = array_merge( $post_body, $extra_stats ); 134 } 135 136 // Allow for WP_AUTO_UPDATE_CORE to specify beta/RC/development releases. 137 if ( defined( 'WP_AUTO_UPDATE_CORE' ) 138 && in_array( WP_AUTO_UPDATE_CORE, array( 'beta', 'rc', 'development', 'branch-development' ), true ) 139 ) { 140 $query['channel'] = WP_AUTO_UPDATE_CORE; 141 } 142 143 $url = 'http://api.wordpress.org/core/version-check/1.7/?' . http_build_query( $query, '', '&' ); 144 $http_url = $url; 145 $ssl = wp_http_supports( array( 'ssl' ) ); 146 147 if ( $ssl ) { 148 $url = set_url_scheme( $url, 'https' ); 149 } 150 151 $doing_cron = wp_doing_cron(); 152 153 $options = array( 154 'timeout' => $doing_cron ? 30 : 3, 155 'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ), 156 'headers' => array( 157 'wp_install' => $wp_install, 158 'wp_blog' => home_url( '/' ), 159 ), 160 'body' => $post_body, 161 ); 162 163 $response = wp_remote_post( $url, $options ); 164 165 if ( $ssl && is_wp_error( $response ) ) { 166 trigger_error( 167 sprintf( 168 /* translators: %s: Support forums URL. */ 169 __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="%s">support forums</a>.' ), 170 __( 'https://wordpress.org/support/forums/' ) 171 ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), 172 headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE 173 ); 174 $response = wp_remote_post( $http_url, $options ); 175 } 176 177 if ( is_wp_error( $response ) || 200 !== wp_remote_retrieve_response_code( $response ) ) { 178 return; 179 } 180 181 $body = trim( wp_remote_retrieve_body( $response ) ); 182 $body = json_decode( $body, true ); 183 184 if ( ! is_array( $body ) || ! isset( $body['offers'] ) ) { 185 return; 186 } 187 188 $offers = $body['offers']; 189 190 foreach ( $offers as &$offer ) { 191 foreach ( $offer as $offer_key => $value ) { 192 if ( 'packages' === $offer_key ) { 193 $offer['packages'] = (object) array_intersect_key( 194 array_map( 'esc_url', $offer['packages'] ), 195 array_fill_keys( array( 'full', 'no_content', 'new_bundled', 'partial', 'rollback' ), '' ) 196 ); 197 } elseif ( 'download' === $offer_key ) { 198 $offer['download'] = esc_url( $value ); 199 } else { 200 $offer[ $offer_key ] = esc_html( $value ); 201 } 202 } 203 $offer = (object) array_intersect_key( 204 $offer, 205 array_fill_keys( 206 array( 207 'response', 208 'download', 209 'locale', 210 'packages', 211 'current', 212 'version', 213 'php_version', 214 'mysql_version', 215 'new_bundled', 216 'partial_version', 217 'notify_email', 218 'support_email', 219 'new_files', 220 ), 221 '' 222 ) 223 ); 224 } 225 226 $updates = new stdClass(); 227 $updates->updates = $offers; 228 $updates->last_checked = time(); 229 $updates->version_checked = $wp_version; 230 231 if ( isset( $body['translations'] ) ) { 232 $updates->translations = $body['translations']; 233 } 234 235 set_site_transient( 'update_core', $updates ); 236 237 if ( ! empty( $body['ttl'] ) ) { 238 $ttl = (int) $body['ttl']; 239 240 if ( $ttl && ( time() + $ttl < wp_next_scheduled( 'wp_version_check' ) ) ) { 241 // Queue an event to re-run the update check in $ttl seconds. 242 wp_schedule_single_event( time() + $ttl, 'wp_version_check' ); 243 } 244 } 245 246 // Trigger background updates if running non-interactively, and we weren't called from the update handler. 247 if ( $doing_cron && ! doing_action( 'wp_maybe_auto_update' ) ) { 248 /** 249 * Fires during wp_cron, starting the auto-update process. 250 * 251 * @since 3.9.0 252 */ 253 do_action( 'wp_maybe_auto_update' ); 254 } 255 } 256 257 /** 258 * Checks for available updates to plugins based on the latest versions hosted on WordPress.org. 259 * 260 * Despite its name this function does not actually perform any updates, it only checks for available updates. 261 * 262 * A list of all plugins installed is sent to WP, along with the site locale. 263 * 264 * Checks against the WordPress server at api.wordpress.org. Will only check 265 * if WordPress isn't installing. 266 * 267 * @since 2.3.0 268 * 269 * @global string $wp_version The WordPress version string. 270 * 271 * @param array $extra_stats Extra statistics to report to the WordPress.org API. 272 */ 273 function wp_update_plugins( $extra_stats = array() ) { 274 if ( wp_installing() ) { 275 return; 276 } 277 278 // Include an unmodified $wp_version. 279 require ABSPATH . WPINC . '/version.php'; 280 281 // If running blog-side, bail unless we've not checked in the last 12 hours. 282 if ( ! function_exists( 'get_plugins' ) ) { 283 require_once ABSPATH . 'wp-admin/includes/plugin.php'; 284 } 285 286 $plugins = get_plugins(); 287 $translations = wp_get_installed_translations( 'plugins' ); 288 289 $active = get_option( 'active_plugins', array() ); 290 $current = get_site_transient( 'update_plugins' ); 291 292 if ( ! is_object( $current ) ) { 293 $current = new stdClass; 294 } 295 296 $updates = new stdClass; 297 $updates->last_checked = time(); 298 $updates->response = array(); 299 $updates->translations = array(); 300 $updates->no_update = array(); 301 302 $doing_cron = wp_doing_cron(); 303 304 // Check for update on a different schedule, depending on the page. 305 switch ( current_filter() ) { 306 case 'upgrader_process_complete': 307 $timeout = 0; 308 break; 309 case 'load-update-core.php': 310 $timeout = MINUTE_IN_SECONDS; 311 break; 312 case 'load-plugins.php': 313 case 'load-update.php': 314 $timeout = HOUR_IN_SECONDS; 315 break; 316 default: 317 if ( $doing_cron ) { 318 $timeout = 2 * HOUR_IN_SECONDS; 319 } else { 320 $timeout = 12 * HOUR_IN_SECONDS; 321 } 322 } 323 324 $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked ); 325 326 if ( $time_not_changed && ! $extra_stats ) { 327 $plugin_changed = false; 328 329 foreach ( $plugins as $file => $p ) { 330 $updates->checked[ $file ] = $p['Version']; 331 332 if ( ! isset( $current->checked[ $file ] ) || (string) $current->checked[ $file ] !== (string) $p['Version'] ) { 333 $plugin_changed = true; 334 } 335 } 336 337 if ( isset( $current->response ) && is_array( $current->response ) ) { 338 foreach ( $current->response as $plugin_file => $update_details ) { 339 if ( ! isset( $plugins[ $plugin_file ] ) ) { 340 $plugin_changed = true; 341 break; 342 } 343 } 344 } 345 346 // Bail if we've checked recently and if nothing has changed. 347 if ( ! $plugin_changed ) { 348 return; 349 } 350 } 351 352 // Update last_checked for current to prevent multiple blocking requests if request hangs. 353 $current->last_checked = time(); 354 set_site_transient( 'update_plugins', $current ); 355 356 $to_send = compact( 'plugins', 'active' ); 357 358 $locales = array_values( get_available_languages() ); 359 360 /** 361 * Filters the locales requested for plugin translations. 362 * 363 * @since 3.7.0 364 * @since 4.5.0 The default value of the `$locales` parameter changed to include all locales. 365 * 366 * @param array $locales Plugin locales. Default is all available locales of the site. 367 */ 368 $locales = apply_filters( 'plugins_update_check_locales', $locales ); 369 $locales = array_unique( $locales ); 370 371 if ( $doing_cron ) { 372 $timeout = 30; 373 } else { 374 // Three seconds, plus one extra second for every 10 plugins. 375 $timeout = 3 + (int) ( count( $plugins ) / 10 ); 376 } 377 378 $options = array( 379 'timeout' => $timeout, 380 'body' => array( 381 'plugins' => wp_json_encode( $to_send ), 382 'translations' => wp_json_encode( $translations ), 383 'locale' => wp_json_encode( $locales ), 384 'all' => wp_json_encode( true ), 385 ), 386 'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ), 387 ); 388 389 if ( $extra_stats ) { 390 $options['body']['update_stats'] = wp_json_encode( $extra_stats ); 391 } 392 393 $url = 'http://api.wordpress.org/plugins/update-check/1.1/'; 394 $http_url = $url; 395 $ssl = wp_http_supports( array( 'ssl' ) ); 396 397 if ( $ssl ) { 398 $url = set_url_scheme( $url, 'https' ); 399 } 400 401 $raw_response = wp_remote_post( $url, $options ); 402 403 if ( $ssl && is_wp_error( $raw_response ) ) { 404 trigger_error( 405 sprintf( 406 /* translators: %s: Support forums URL. */ 407 __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="%s">support forums</a>.' ), 408 __( 'https://wordpress.org/support/forums/' ) 409 ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), 410 headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE 411 ); 412 $raw_response = wp_remote_post( $http_url, $options ); 413 } 414 415 if ( is_wp_error( $raw_response ) || 200 !== wp_remote_retrieve_response_code( $raw_response ) ) { 416 return; 417 } 418 419 $response = json_decode( wp_remote_retrieve_body( $raw_response ), true ); 420 421 if ( $response && is_array( $response ) ) { 422 $updates->response = $response['plugins']; 423 $updates->translations = $response['translations']; 424 $updates->no_update = $response['no_update']; 425 } 426 427 // Support updates for any plugins using the `Update URI` header field. 428 foreach ( $plugins as $plugin_file => $plugin_data ) { 429 if ( ! $plugin_data['UpdateURI'] || isset( $updates->response[ $plugin_file ] ) ) { 430 continue; 431 } 432 433 $hostname = wp_parse_url( sanitize_url( $plugin_data['UpdateURI'] ), PHP_URL_HOST ); 434 435 /** 436 * Filters the update response for a given plugin hostname. 437 * 438 * The dynamic portion of the hook name, `$hostname`, refers to the hostname 439 * of the URI specified in the `Update URI` header field. 440 * 441 * @since 5.8.0 442 * 443 * @param array|false $update { 444 * The plugin update data with the latest details. Default false. 445 * 446 * @type string $id Optional. ID of the plugin for update purposes, should be a URI 447 * specified in the `Update URI` header field. 448 * @type string $slug Slug of the plugin. 449 * @type string $version The version of the plugin. 450 * @type string $url The URL for details of the plugin. 451 * @type string $package Optional. The update ZIP for the plugin. 452 * @type string $tested Optional. The version of WordPress the plugin is tested against. 453 * @type string $requires_php Optional. The version of PHP which the plugin requires. 454 * @type bool $autoupdate Optional. Whether the plugin should automatically update. 455 * @type array $icons Optional. Array of plugin icons. 456 * @type array $banners Optional. Array of plugin banners. 457 * @type array $banners_rtl Optional. Array of plugin RTL banners. 458 * @type array $translations { 459 * Optional. List of translation updates for the plugin. 460 * 461 * @type string $language The language the translation update is for. 462 * @type string $version The version of the plugin this translation is for. 463 * This is not the version of the language file. 464 * @type string $updated The update timestamp of the translation file. 465 * Should be a date in the `YYYY-MM-DD HH:MM:SS` format. 466 * @type string $package The ZIP location containing the translation update. 467 * @type string $autoupdate Whether the translation should be automatically installed. 468 * } 469 * } 470 * @param array $plugin_data Plugin headers. 471 * @param string $plugin_file Plugin filename. 472 * @param array $locales Installed locales to look translations for. 473 */ 474 $update = apply_filters( "update_plugins_{$hostname}", false, $plugin_data, $plugin_file, $locales ); 475 476 if ( ! $update ) { 477 continue; 478 } 479 480 $update = (object) $update; 481 482 // Is it valid? We require at least a version. 483 if ( ! isset( $update->version ) ) { 484 continue; 485 } 486 487 // These should remain constant. 488 $update->id = $plugin_data['UpdateURI']; 489 $update->plugin = $plugin_file; 490 491 // WordPress needs the version field specified as 'new_version'. 492 if ( ! isset( $update->new_version ) ) { 493 $update->new_version = $update->version; 494 } 495 496 // Handle any translation updates. 497 if ( ! empty( $update->translations ) ) { 498 foreach ( $update->translations as $translation ) { 499 if ( isset( $translation['language'], $translation['package'] ) ) { 500 $translation['type'] = 'plugin'; 501 $translation['slug'] = isset( $update->slug ) ? $update->slug : $update->id; 502 503 $updates->translations[] = $translation; 504 } 505 } 506 } 507 508 unset( $updates->no_update[ $plugin_file ], $updates->response[ $plugin_file ] ); 509 510 if ( version_compare( $update->new_version, $plugin_data['Version'], '>' ) ) { 511 $updates->response[ $plugin_file ] = $update; 512 } else { 513 $updates->no_update[ $plugin_file ] = $update; 514 } 515 } 516 517 $sanitize_plugin_update_payload = static function( &$item ) { 518 $item = (object) $item; 519 520 unset( $item->translations, $item->compatibility ); 521 522 return $item; 523 }; 524 525 array_walk( $updates->response, $sanitize_plugin_update_payload ); 526 array_walk( $updates->no_update, $sanitize_plugin_update_payload ); 527 528 set_site_transient( 'update_plugins', $updates ); 529 } 530 531 /** 532 * Checks for available updates to themes based on the latest versions hosted on WordPress.org. 533 * 534 * Despite its name this function does not actually perform any updates, it only checks for available updates. 535 * 536 * A list of all themes installed is sent to WP, along with the site locale. 537 * 538 * Checks against the WordPress server at api.wordpress.org. Will only check 539 * if WordPress isn't installing. 540 * 541 * @since 2.7.0 542 * 543 * @global string $wp_version The WordPress version string. 544 * 545 * @param array $extra_stats Extra statistics to report to the WordPress.org API. 546 */ 547 function wp_update_themes( $extra_stats = array() ) { 548 if ( wp_installing() ) { 549 return; 550 } 551 552 // Include an unmodified $wp_version. 553 require ABSPATH . WPINC . '/version.php'; 554 555 $installed_themes = wp_get_themes(); 556 $translations = wp_get_installed_translations( 'themes' ); 557 558 $last_update = get_site_transient( 'update_themes' ); 559 560 if ( ! is_object( $last_update ) ) { 561 $last_update = new stdClass; 562 } 563 564 $themes = array(); 565 $checked = array(); 566 $request = array(); 567 568 // Put slug of active theme into request. 569 $request['active'] = get_option( 'stylesheet' ); 570 571 foreach ( $installed_themes as $theme ) { 572 $checked[ $theme->get_stylesheet() ] = $theme->get( 'Version' ); 573 574 $themes[ $theme->get_stylesheet() ] = array( 575 'Name' => $theme->get( 'Name' ), 576 'Title' => $theme->get( 'Name' ), 577 'Version' => $theme->get( 'Version' ), 578 'Author' => $theme->get( 'Author' ), 579 'Author URI' => $theme->get( 'AuthorURI' ), 580 'Template' => $theme->get_template(), 581 'Stylesheet' => $theme->get_stylesheet(), 582 ); 583 } 584 585 $doing_cron = wp_doing_cron(); 586 587 // Check for update on a different schedule, depending on the page. 588 switch ( current_filter() ) { 589 case 'upgrader_process_complete': 590 $timeout = 0; 591 break; 592 case 'load-update-core.php': 593 $timeout = MINUTE_IN_SECONDS; 594 break; 595 case 'load-themes.php': 596 case 'load-update.php': 597 $timeout = HOUR_IN_SECONDS; 598 break; 599 default: 600 if ( $doing_cron ) { 601 $timeout = 2 * HOUR_IN_SECONDS; 602 } else { 603 $timeout = 12 * HOUR_IN_SECONDS; 604 } 605 } 606 607 $time_not_changed = isset( $last_update->last_checked ) && $timeout > ( time() - $last_update->last_checked ); 608 609 if ( $time_not_changed && ! $extra_stats ) { 610 $theme_changed = false; 611 612 foreach ( $checked as $slug => $v ) { 613 if ( ! isset( $last_update->checked[ $slug ] ) || (string) $last_update->checked[ $slug ] !== (string) $v ) { 614 $theme_changed = true; 615 } 616 } 617 618 if ( isset( $last_update->response ) && is_array( $last_update->response ) ) { 619 foreach ( $last_update->response as $slug => $update_details ) { 620 if ( ! isset( $checked[ $slug ] ) ) { 621 $theme_changed = true; 622 break; 623 } 624 } 625 } 626 627 // Bail if we've checked recently and if nothing has changed. 628 if ( ! $theme_changed ) { 629 return; 630 } 631 } 632 633 // Update last_checked for current to prevent multiple blocking requests if request hangs. 634 $last_update->last_checked = time(); 635 set_site_transient( 'update_themes', $last_update ); 636 637 $request['themes'] = $themes; 638 639 $locales = array_values( get_available_languages() ); 640 641 /** 642 * Filters the locales requested for theme translations. 643 * 644 * @since 3.7.0 645 * @since 4.5.0 The default value of the `$locales` parameter changed to include all locales. 646 * 647 * @param array $locales Theme locales. Default is all available locales of the site. 648 */ 649 $locales = apply_filters( 'themes_update_check_locales', $locales ); 650 $locales = array_unique( $locales ); 651 652 if ( $doing_cron ) { 653 $timeout = 30; 654 } else { 655 // Three seconds, plus one extra second for every 10 themes. 656 $timeout = 3 + (int) ( count( $themes ) / 10 ); 657 } 658 659 $options = array( 660 'timeout' => $timeout, 661 'body' => array( 662 'themes' => wp_json_encode( $request ), 663 'translations' => wp_json_encode( $translations ), 664 'locale' => wp_json_encode( $locales ), 665 ), 666 'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ), 667 ); 668 669 if ( $extra_stats ) { 670 $options['body']['update_stats'] = wp_json_encode( $extra_stats ); 671 } 672 673 $url = 'http://api.wordpress.org/themes/update-check/1.1/'; 674 $http_url = $url; 675 $ssl = wp_http_supports( array( 'ssl' ) ); 676 677 if ( $ssl ) { 678 $url = set_url_scheme( $url, 'https' ); 679 } 680 681 $raw_response = wp_remote_post( $url, $options ); 682 683 if ( $ssl && is_wp_error( $raw_response ) ) { 684 trigger_error( 685 sprintf( 686 /* translators: %s: Support forums URL. */ 687 __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="%s">support forums</a>.' ), 688 __( 'https://wordpress.org/support/forums/' ) 689 ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), 690 headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE 691 ); 692 $raw_response = wp_remote_post( $http_url, $options ); 693 } 694 695 if ( is_wp_error( $raw_response ) || 200 !== wp_remote_retrieve_response_code( $raw_response ) ) { 696 return; 697 } 698 699 $new_update = new stdClass; 700 $new_update->last_checked = time(); 701 $new_update->checked = $checked; 702 703 $response = json_decode( wp_remote_retrieve_body( $raw_response ), true ); 704 705 if ( is_array( $response ) ) { 706 $new_update->response = $response['themes']; 707 $new_update->no_update = $response['no_update']; 708 $new_update->translations = $response['translations']; 709 } 710 711 set_site_transient( 'update_themes', $new_update ); 712 } 713 714 /** 715 * Performs WordPress automatic background updates. 716 * 717 * Updates WordPress core plus any plugins and themes that have automatic updates enabled. 718 * 719 * @since 3.7.0 720 */ 721 function wp_maybe_auto_update() { 722 include_once ABSPATH . 'wp-admin/includes/admin.php'; 723 require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php'; 724 725 $upgrader = new WP_Automatic_Updater; 726 $upgrader->run(); 727 } 728 729 /** 730 * Retrieves a list of all language updates available. 731 * 732 * @since 3.7.0 733 * 734 * @return object[] Array of translation objects that have available updates. 735 */ 736 function wp_get_translation_updates() { 737 $updates = array(); 738 $transients = array( 739 'update_core' => 'core', 740 'update_plugins' => 'plugin', 741 'update_themes' => 'theme', 742 ); 743 744 foreach ( $transients as $transient => $type ) { 745 $transient = get_site_transient( $transient ); 746 747 if ( empty( $transient->translations ) ) { 748 continue; 749 } 750 751 foreach ( $transient->translations as $translation ) { 752 $updates[] = (object) $translation; 753 } 754 } 755 756 return $updates; 757 } 758 759 /** 760 * Collect counts and UI strings for available updates 761 * 762 * @since 3.3.0 763 * 764 * @return array 765 */ 766 function wp_get_update_data() { 767 $counts = array( 768 'plugins' => 0, 769 'themes' => 0, 770 'wordpress' => 0, 771 'translations' => 0, 772 ); 773 774 $plugins = current_user_can( 'update_plugins' ); 775 776 if ( $plugins ) { 777 $update_plugins = get_site_transient( 'update_plugins' ); 778 779 if ( ! empty( $update_plugins->response ) ) { 780 $counts['plugins'] = count( $update_plugins->response ); 781 } 782 } 783 784 $themes = current_user_can( 'update_themes' ); 785 786 if ( $themes ) { 787 $update_themes = get_site_transient( 'update_themes' ); 788 789 if ( ! empty( $update_themes->response ) ) { 790 $counts['themes'] = count( $update_themes->response ); 791 } 792 } 793 794 $core = current_user_can( 'update_core' ); 795 796 if ( $core && function_exists( 'get_core_updates' ) ) { 797 $update_wordpress = get_core_updates( array( 'dismissed' => false ) ); 798 799 if ( ! empty( $update_wordpress ) 800 && ! in_array( $update_wordpress[0]->response, array( 'development', 'latest' ), true ) 801 && current_user_can( 'update_core' ) 802 ) { 803 $counts['wordpress'] = 1; 804 } 805 } 806 807 if ( ( $core || $plugins || $themes ) && wp_get_translation_updates() ) { 808 $counts['translations'] = 1; 809 } 810 811 $counts['total'] = $counts['plugins'] + $counts['themes'] + $counts['wordpress'] + $counts['translations']; 812 $titles = array(); 813 814 if ( $counts['wordpress'] ) { 815 /* translators: %d: Number of available WordPress updates. */ 816 $titles['wordpress'] = sprintf( __( '%d WordPress Update' ), $counts['wordpress'] ); 817 } 818 819 if ( $counts['plugins'] ) { 820 /* translators: %d: Number of available plugin updates. */ 821 $titles['plugins'] = sprintf( _n( '%d Plugin Update', '%d Plugin Updates', $counts['plugins'] ), $counts['plugins'] ); 822 } 823 824 if ( $counts['themes'] ) { 825 /* translators: %d: Number of available theme updates. */ 826 $titles['themes'] = sprintf( _n( '%d Theme Update', '%d Theme Updates', $counts['themes'] ), $counts['themes'] ); 827 } 828 829 if ( $counts['translations'] ) { 830 $titles['translations'] = __( 'Translation Updates' ); 831 } 832 833 $update_title = $titles ? esc_attr( implode( ', ', $titles ) ) : ''; 834 835 $update_data = array( 836 'counts' => $counts, 837 'title' => $update_title, 838 ); 839 /** 840 * Filters the returned array of update data for plugins, themes, and WordPress core. 841 * 842 * @since 3.5.0 843 * 844 * @param array $update_data { 845 * Fetched update data. 846 * 847 * @type array $counts An array of counts for available plugin, theme, and WordPress updates. 848 * @type string $update_title Titles of available updates. 849 * } 850 * @param array $titles An array of update counts and UI strings for available updates. 851 */ 852 return apply_filters( 'wp_get_update_data', $update_data, $titles ); 853 } 854 855 /** 856 * Determines whether core should be updated. 857 * 858 * @since 2.8.0 859 * 860 * @global string $wp_version The WordPress version string. 861 */ 862 function _maybe_update_core() { 863 // Include an unmodified $wp_version. 864 require ABSPATH . WPINC . '/version.php'; 865 866 $current = get_site_transient( 'update_core' ); 867 868 if ( isset( $current->last_checked, $current->version_checked ) 869 && 12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) 870 && $current->version_checked === $wp_version 871 ) { 872 return; 873 } 874 875 wp_version_check(); 876 } 877 /** 878 * Check the last time plugins were run before checking plugin versions. 879 * 880 * This might have been backported to WordPress 2.6.1 for performance reasons. 881 * This is used for the wp-admin to check only so often instead of every page 882 * load. 883 * 884 * @since 2.7.0 885 * @access private 886 */ 887 function _maybe_update_plugins() { 888 $current = get_site_transient( 'update_plugins' ); 889 890 if ( isset( $current->last_checked ) 891 && 12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) 892 ) { 893 return; 894 } 895 896 wp_update_plugins(); 897 } 898 899 /** 900 * Check themes versions only after a duration of time. 901 * 902 * This is for performance reasons to make sure that on the theme version 903 * checker is not run on every page load. 904 * 905 * @since 2.7.0 906 * @access private 907 */ 908 function _maybe_update_themes() { 909 $current = get_site_transient( 'update_themes' ); 910 911 if ( isset( $current->last_checked ) 912 && 12 * HOUR_IN_SECONDS > ( time() - $current->last_checked ) 913 ) { 914 return; 915 } 916 917 wp_update_themes(); 918 } 919 920 /** 921 * Schedule core, theme, and plugin update checks. 922 * 923 * @since 3.1.0 924 */ 925 function wp_schedule_update_checks() { 926 if ( ! wp_next_scheduled( 'wp_version_check' ) && ! wp_installing() ) { 927 wp_schedule_event( time(), 'twicedaily', 'wp_version_check' ); 928 } 929 930 if ( ! wp_next_scheduled( 'wp_update_plugins' ) && ! wp_installing() ) { 931 wp_schedule_event( time(), 'twicedaily', 'wp_update_plugins' ); 932 } 933 934 if ( ! wp_next_scheduled( 'wp_update_themes' ) && ! wp_installing() ) { 935 wp_schedule_event( time(), 'twicedaily', 'wp_update_themes' ); 936 } 937 } 938 939 /** 940 * Clear existing update caches for plugins, themes, and core. 941 * 942 * @since 4.1.0 943 */ 944 function wp_clean_update_cache() { 945 if ( function_exists( 'wp_clean_plugins_cache' ) ) { 946 wp_clean_plugins_cache(); 947 } else { 948 delete_site_transient( 'update_plugins' ); 949 } 950 951 wp_clean_themes_cache(); 952 953 delete_site_transient( 'update_core' ); 954 } 955 956 if ( ( ! is_main_site() && ! is_network_admin() ) || wp_doing_ajax() ) { 957 return; 958 } 959 960 add_action( 'admin_init', '_maybe_update_core' ); 961 add_action( 'wp_version_check', 'wp_version_check' ); 962 963 add_action( 'load-plugins.php', 'wp_update_plugins' ); 964 add_action( 'load-update.php', 'wp_update_plugins' ); 965 add_action( 'load-update-core.php', 'wp_update_plugins' ); 966 add_action( 'admin_init', '_maybe_update_plugins' ); 967 add_action( 'wp_update_plugins', 'wp_update_plugins' ); 968 969 add_action( 'load-themes.php', 'wp_update_themes' ); 970 add_action( 'load-update.php', 'wp_update_themes' ); 971 add_action( 'load-update-core.php', 'wp_update_themes' ); 972 add_action( 'admin_init', '_maybe_update_themes' ); 973 add_action( 'wp_update_themes', 'wp_update_themes' ); 974 975 add_action( 'update_option_WPLANG', 'wp_clean_update_cache', 10, 0 ); 976 977 add_action( 'wp_maybe_auto_update', 'wp_maybe_auto_update' ); 978 979 add_action( 'init', 'wp_schedule_update_checks' );
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| Generated : Tue Jul 5 08:20:01 2022 | Cross-referenced by PHPXref |