/htdocs/wp-includes/class-wp.php
PHP | 754 lines | 370 code | 90 blank | 294 comment | 123 complexity | 8e7416a8b662b969c78c337b5b2ca21b MD5 | raw file
- <?php
- /**
- * WordPress environment setup class.
- *
- * @package WordPress
- * @since 2.0.0
- */
- class WP {
- /**
- * Public query variables.
- *
- * Long list of public query variables.
- *
- * @since 2.0.0
- * @var string[]
- */
- public $public_query_vars = array( 'm', 'p', 'posts', 'w', 'cat', 'withcomments', 'withoutcomments', 's', 'search', 'exact', 'sentence', 'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order', 'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'tag', 'feed', 'author_name', 'pagename', 'page_id', 'error', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview', 'robots', 'favicon', 'taxonomy', 'term', 'cpage', 'post_type', 'embed' );
- /**
- * Private query variables.
- *
- * Long list of private query variables.
- *
- * @since 2.0.0
- * @var string[]
- */
- public $private_query_vars = array( 'offset', 'posts_per_page', 'posts_per_archive_page', 'showposts', 'nopaging', 'post_type', 'post_status', 'category__in', 'category__not_in', 'category__and', 'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and', 'tag_id', 'post_mime_type', 'perm', 'comments_per_page', 'post__in', 'post__not_in', 'post_parent', 'post_parent__in', 'post_parent__not_in', 'title', 'fields' );
- /**
- * Extra query variables set by the user.
- *
- * @since 2.1.0
- * @var array
- */
- public $extra_query_vars = array();
- /**
- * Query variables for setting up the WordPress Query Loop.
- *
- * @since 2.0.0
- * @var array
- */
- public $query_vars;
- /**
- * String parsed to set the query variables.
- *
- * @since 2.0.0
- * @var string
- */
- public $query_string;
- /**
- * The request path, e.g. 2015/05/06.
- *
- * @since 2.0.0
- * @var string
- */
- public $request;
- /**
- * Rewrite rule the request matched.
- *
- * @since 2.0.0
- * @var string
- */
- public $matched_rule;
- /**
- * Rewrite query the request matched.
- *
- * @since 2.0.0
- * @var string
- */
- public $matched_query;
- /**
- * Whether already did the permalink.
- *
- * @since 2.0.0
- * @var bool
- */
- public $did_permalink = false;
- /**
- * Add name to list of public query variables.
- *
- * @since 2.1.0
- *
- * @param string $qv Query variable name.
- */
- public function add_query_var( $qv ) {
- if ( ! in_array( $qv, $this->public_query_vars ) ) {
- $this->public_query_vars[] = $qv;
- }
- }
- /**
- * Removes a query variable from a list of public query variables.
- *
- * @since 4.5.0
- *
- * @param string $name Query variable name.
- */
- public function remove_query_var( $name ) {
- $this->public_query_vars = array_diff( $this->public_query_vars, array( $name ) );
- }
- /**
- * Set the value of a query variable.
- *
- * @since 2.3.0
- *
- * @param string $key Query variable name.
- * @param mixed $value Query variable value.
- */
- public function set_query_var( $key, $value ) {
- $this->query_vars[ $key ] = $value;
- }
- /**
- * Parse request to find correct WordPress query.
- *
- * Sets up the query variables based on the request. There are also many
- * filters and actions that can be used to further manipulate the result.
- *
- * @since 2.0.0
- *
- * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
- *
- * @param array|string $extra_query_vars Set the extra query variables.
- */
- public function parse_request( $extra_query_vars = '' ) {
- global $wp_rewrite;
- /**
- * Filters whether to parse the request.
- *
- * @since 3.5.0
- *
- * @param bool $bool Whether or not to parse the request. Default true.
- * @param WP $this Current WordPress environment instance.
- * @param array|string $extra_query_vars Extra passed query variables.
- */
- if ( ! apply_filters( 'do_parse_request', true, $this, $extra_query_vars ) ) {
- return;
- }
- $this->query_vars = array();
- $post_type_query_vars = array();
- if ( is_array( $extra_query_vars ) ) {
- $this->extra_query_vars = & $extra_query_vars;
- } elseif ( ! empty( $extra_query_vars ) ) {
- parse_str( $extra_query_vars, $this->extra_query_vars );
- }
- // Process PATH_INFO, REQUEST_URI, and 404 for permalinks.
- // Fetch the rewrite rules.
- $rewrite = $wp_rewrite->wp_rewrite_rules();
- if ( ! empty( $rewrite ) ) {
- // If we match a rewrite rule, this will be cleared.
- $error = '404';
- $this->did_permalink = true;
- $pathinfo = isset( $_SERVER['PATH_INFO'] ) ? $_SERVER['PATH_INFO'] : '';
- list( $pathinfo ) = explode( '?', $pathinfo );
- $pathinfo = str_replace( '%', '%25', $pathinfo );
- list( $req_uri ) = explode( '?', $_SERVER['REQUEST_URI'] );
- $self = $_SERVER['PHP_SELF'];
- $home_path = trim( parse_url( home_url(), PHP_URL_PATH ), '/' );
- $home_path_regex = sprintf( '|^%s|i', preg_quote( $home_path, '|' ) );
- /*
- * Trim path info from the end and the leading home path from the front.
- * For path info requests, this leaves us with the requesting filename, if any.
- * For 404 requests, this leaves us with the requested permalink.
- */
- $req_uri = str_replace( $pathinfo, '', $req_uri );
- $req_uri = trim( $req_uri, '/' );
- $req_uri = preg_replace( $home_path_regex, '', $req_uri );
- $req_uri = trim( $req_uri, '/' );
- $pathinfo = trim( $pathinfo, '/' );
- $pathinfo = preg_replace( $home_path_regex, '', $pathinfo );
- $pathinfo = trim( $pathinfo, '/' );
- $self = trim( $self, '/' );
- $self = preg_replace( $home_path_regex, '', $self );
- $self = trim( $self, '/' );
- // The requested permalink is in $pathinfo for path info requests and
- // $req_uri for other requests.
- if ( ! empty( $pathinfo ) && ! preg_match( '|^.*' . $wp_rewrite->index . '$|', $pathinfo ) ) {
- $requested_path = $pathinfo;
- } else {
- // If the request uri is the index, blank it out so that we don't try to match it against a rule.
- if ( $req_uri == $wp_rewrite->index ) {
- $req_uri = '';
- }
- $requested_path = $req_uri;
- }
- $requested_file = $req_uri;
- $this->request = $requested_path;
- // Look for matches.
- $request_match = $requested_path;
- if ( empty( $request_match ) ) {
- // An empty request could only match against ^$ regex.
- if ( isset( $rewrite['$'] ) ) {
- $this->matched_rule = '$';
- $query = $rewrite['$'];
- $matches = array( '' );
- }
- } else {
- foreach ( (array) $rewrite as $match => $query ) {
- // If the requested file is the anchor of the match, prepend it to the path info.
- if ( ! empty( $requested_file ) && strpos( $match, $requested_file ) === 0 && $requested_file != $requested_path ) {
- $request_match = $requested_file . '/' . $requested_path;
- }
- if ( preg_match( "#^$match#", $request_match, $matches ) ||
- preg_match( "#^$match#", urldecode( $request_match ), $matches ) ) {
- if ( $wp_rewrite->use_verbose_page_rules && preg_match( '/pagename=\$matches\[([0-9]+)\]/', $query, $varmatch ) ) {
- // This is a verbose page match, let's check to be sure about it.
- $page = get_page_by_path( $matches[ $varmatch[1] ] );
- if ( ! $page ) {
- continue;
- }
- $post_status_obj = get_post_status_object( $page->post_status );
- if ( ! $post_status_obj->public && ! $post_status_obj->protected
- && ! $post_status_obj->private && $post_status_obj->exclude_from_search ) {
- continue;
- }
- }
- // Got a match.
- $this->matched_rule = $match;
- break;
- }
- }
- }
- if ( isset( $this->matched_rule ) ) {
- // Trim the query of everything up to the '?'.
- $query = preg_replace( '!^.+\?!', '', $query );
- // Substitute the substring matches into the query.
- $query = addslashes( WP_MatchesMapRegex::apply( $query, $matches ) );
- $this->matched_query = $query;
- // Parse the query.
- parse_str( $query, $perma_query_vars );
- // If we're processing a 404 request, clear the error var since we found something.
- if ( '404' == $error ) {
- unset( $error, $_GET['error'] );
- }
- }
- // If req_uri is empty or if it is a request for ourself, unset error.
- if ( empty( $requested_path ) || $requested_file == $self || strpos( $_SERVER['PHP_SELF'], 'wp-admin/' ) !== false ) {
- unset( $error, $_GET['error'] );
- if ( isset( $perma_query_vars ) && strpos( $_SERVER['PHP_SELF'], 'wp-admin/' ) !== false ) {
- unset( $perma_query_vars );
- }
- $this->did_permalink = false;
- }
- }
- /**
- * Filters the query variables whitelist before processing.
- *
- * Allows (publicly allowed) query vars to be added, removed, or changed prior
- * to executing the query. Needed to allow custom rewrite rules using your own arguments
- * to work, or any other custom query variables you want to be publicly available.
- *
- * @since 1.5.0
- *
- * @param string[] $public_query_vars The array of whitelisted query variable names.
- */
- $this->public_query_vars = apply_filters( 'query_vars', $this->public_query_vars );
- foreach ( get_post_types( array(), 'objects' ) as $post_type => $t ) {
- if ( is_post_type_viewable( $t ) && $t->query_var ) {
- $post_type_query_vars[ $t->query_var ] = $post_type;
- }
- }
- foreach ( $this->public_query_vars as $wpvar ) {
- if ( isset( $this->extra_query_vars[ $wpvar ] ) ) {
- $this->query_vars[ $wpvar ] = $this->extra_query_vars[ $wpvar ];
- } elseif ( isset( $_GET[ $wpvar ] ) && isset( $_POST[ $wpvar ] ) && $_GET[ $wpvar ] !== $_POST[ $wpvar ] ) {
- wp_die( __( 'A variable mismatch has been detected.' ), __( 'Sorry, you are not allowed to view this item.' ), 400 );
- } elseif ( isset( $_POST[ $wpvar ] ) ) {
- $this->query_vars[ $wpvar ] = $_POST[ $wpvar ];
- } elseif ( isset( $_GET[ $wpvar ] ) ) {
- $this->query_vars[ $wpvar ] = $_GET[ $wpvar ];
- } elseif ( isset( $perma_query_vars[ $wpvar ] ) ) {
- $this->query_vars[ $wpvar ] = $perma_query_vars[ $wpvar ];
- }
- if ( ! empty( $this->query_vars[ $wpvar ] ) ) {
- if ( ! is_array( $this->query_vars[ $wpvar ] ) ) {
- $this->query_vars[ $wpvar ] = (string) $this->query_vars[ $wpvar ];
- } else {
- foreach ( $this->query_vars[ $wpvar ] as $vkey => $v ) {
- if ( is_scalar( $v ) ) {
- $this->query_vars[ $wpvar ][ $vkey ] = (string) $v;
- }
- }
- }
- if ( isset( $post_type_query_vars[ $wpvar ] ) ) {
- $this->query_vars['post_type'] = $post_type_query_vars[ $wpvar ];
- $this->query_vars['name'] = $this->query_vars[ $wpvar ];
- }
- }
- }
- // Convert urldecoded spaces back into '+'.
- foreach ( get_taxonomies( array(), 'objects' ) as $taxonomy => $t ) {
- if ( $t->query_var && isset( $this->query_vars[ $t->query_var ] ) ) {
- $this->query_vars[ $t->query_var ] = str_replace( ' ', '+', $this->query_vars[ $t->query_var ] );
- }
- }
- // Don't allow non-publicly queryable taxonomies to be queried from the front end.
- if ( ! is_admin() ) {
- foreach ( get_taxonomies( array( 'publicly_queryable' => false ), 'objects' ) as $taxonomy => $t ) {
- /*
- * Disallow when set to the 'taxonomy' query var.
- * Non-publicly queryable taxonomies cannot register custom query vars. See register_taxonomy().
- */
- if ( isset( $this->query_vars['taxonomy'] ) && $taxonomy === $this->query_vars['taxonomy'] ) {
- unset( $this->query_vars['taxonomy'], $this->query_vars['term'] );
- }
- }
- }
- // Limit publicly queried post_types to those that are 'publicly_queryable'.
- if ( isset( $this->query_vars['post_type'] ) ) {
- $queryable_post_types = get_post_types( array( 'publicly_queryable' => true ) );
- if ( ! is_array( $this->query_vars['post_type'] ) ) {
- if ( ! in_array( $this->query_vars['post_type'], $queryable_post_types ) ) {
- unset( $this->query_vars['post_type'] );
- }
- } else {
- $this->query_vars['post_type'] = array_intersect( $this->query_vars['post_type'], $queryable_post_types );
- }
- }
- // Resolve conflicts between posts with numeric slugs and date archive queries.
- $this->query_vars = wp_resolve_numeric_slug_conflicts( $this->query_vars );
- foreach ( (array) $this->private_query_vars as $var ) {
- if ( isset( $this->extra_query_vars[ $var ] ) ) {
- $this->query_vars[ $var ] = $this->extra_query_vars[ $var ];
- }
- }
- if ( isset( $error ) ) {
- $this->query_vars['error'] = $error;
- }
- /**
- * Filters the array of parsed query variables.
- *
- * @since 2.1.0
- *
- * @param array $query_vars The array of requested query variables.
- */
- $this->query_vars = apply_filters( 'request', $this->query_vars );
- /**
- * Fires once all query variables for the current request have been parsed.
- *
- * @since 2.1.0
- *
- * @param WP $this Current WordPress environment instance (passed by reference).
- */
- do_action_ref_array( 'parse_request', array( &$this ) );
- }
- /**
- * Sends additional HTTP headers for caching, content type, etc.
- *
- * Sets the Content-Type header. Sets the 'error' status (if passed) and optionally exits.
- * If showing a feed, it will also send Last-Modified, ETag, and 304 status if needed.
- *
- * @since 2.0.0
- * @since 4.4.0 `X-Pingback` header is added conditionally after posts have been queried in handle_404().
- */
- public function send_headers() {
- $headers = array();
- $status = null;
- $exit_required = false;
- if ( is_user_logged_in() ) {
- $headers = array_merge( $headers, wp_get_nocache_headers() );
- } elseif ( ! empty( $_GET['unapproved'] ) && ! empty( $_GET['moderation-hash'] ) ) {
- // Unmoderated comments are only visible for one minute via the moderation hash.
- $headers['Expires'] = gmdate( 'D, d M Y H:i:s', time() + MINUTE_IN_SECONDS );
- $headers['Cache-Control'] = 'max-age=60, must-revalidate';
- }
- if ( ! empty( $this->query_vars['error'] ) ) {
- $status = (int) $this->query_vars['error'];
- if ( 404 === $status ) {
- if ( ! is_user_logged_in() ) {
- $headers = array_merge( $headers, wp_get_nocache_headers() );
- }
- $headers['Content-Type'] = get_option( 'html_type' ) . '; charset=' . get_option( 'blog_charset' );
- } elseif ( in_array( $status, array( 403, 500, 502, 503 ) ) ) {
- $exit_required = true;
- }
- } elseif ( empty( $this->query_vars['feed'] ) ) {
- $headers['Content-Type'] = get_option( 'html_type' ) . '; charset=' . get_option( 'blog_charset' );
- } else {
- // Set the correct content type for feeds.
- $type = $this->query_vars['feed'];
- if ( 'feed' == $this->query_vars['feed'] ) {
- $type = get_default_feed();
- }
- $headers['Content-Type'] = feed_content_type( $type ) . '; charset=' . get_option( 'blog_charset' );
- // We're showing a feed, so WP is indeed the only thing that last changed.
- if ( ! empty( $this->query_vars['withcomments'] )
- || false !== strpos( $this->query_vars['feed'], 'comments-' )
- || ( empty( $this->query_vars['withoutcomments'] )
- && ( ! empty( $this->query_vars['p'] )
- || ! empty( $this->query_vars['name'] )
- || ! empty( $this->query_vars['page_id'] )
- || ! empty( $this->query_vars['pagename'] )
- || ! empty( $this->query_vars['attachment'] )
- || ! empty( $this->query_vars['attachment_id'] )
- )
- )
- ) {
- $wp_last_modified = mysql2date( 'D, d M Y H:i:s', get_lastcommentmodified( 'GMT' ), false );
- } else {
- $wp_last_modified = mysql2date( 'D, d M Y H:i:s', get_lastpostmodified( 'GMT' ), false );
- }
- if ( ! $wp_last_modified ) {
- $wp_last_modified = gmdate( 'D, d M Y H:i:s' );
- }
- $wp_last_modified .= ' GMT';
- $wp_etag = '"' . md5( $wp_last_modified ) . '"';
- $headers['Last-Modified'] = $wp_last_modified;
- $headers['ETag'] = $wp_etag;
- // Support for conditional GET.
- if ( isset( $_SERVER['HTTP_IF_NONE_MATCH'] ) ) {
- $client_etag = wp_unslash( $_SERVER['HTTP_IF_NONE_MATCH'] );
- } else {
- $client_etag = false;
- }
- $client_last_modified = empty( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ) ? '' : trim( $_SERVER['HTTP_IF_MODIFIED_SINCE'] );
- // If string is empty, return 0. If not, attempt to parse into a timestamp.
- $client_modified_timestamp = $client_last_modified ? strtotime( $client_last_modified ) : 0;
- // Make a timestamp for our most recent modification..
- $wp_modified_timestamp = strtotime( $wp_last_modified );
- if ( ( $client_last_modified && $client_etag ) ?
- ( ( $client_modified_timestamp >= $wp_modified_timestamp ) && ( $client_etag == $wp_etag ) ) :
- ( ( $client_modified_timestamp >= $wp_modified_timestamp ) || ( $client_etag == $wp_etag ) ) ) {
- $status = 304;
- $exit_required = true;
- }
- }
- /**
- * Filters the HTTP headers before they're sent to the browser.
- *
- * @since 2.8.0
- *
- * @param string[] $headers Associative array of headers to be sent.
- * @param WP $this Current WordPress environment instance.
- */
- $headers = apply_filters( 'wp_headers', $headers, $this );
- if ( ! empty( $status ) ) {
- status_header( $status );
- }
- // If Last-Modified is set to false, it should not be sent (no-cache situation).
- if ( isset( $headers['Last-Modified'] ) && false === $headers['Last-Modified'] ) {
- unset( $headers['Last-Modified'] );
- if ( ! headers_sent() ) {
- header_remove( 'Last-Modified' );
- }
- }
- if ( ! headers_sent() ) {
- foreach ( (array) $headers as $name => $field_value ) {
- header( "{$name}: {$field_value}" );
- }
- }
- if ( $exit_required ) {
- exit();
- }
- /**
- * Fires once the requested HTTP headers for caching, content type, etc. have been sent.
- *
- * @since 2.1.0
- *
- * @param WP $this Current WordPress environment instance (passed by reference).
- */
- do_action_ref_array( 'send_headers', array( &$this ) );
- }
- /**
- * Sets the query string property based off of the query variable property.
- *
- * The {@see 'query_string'} filter is deprecated, but still works. Plugins should
- * use the {@see 'request'} filter instead.
- *
- * @since 2.0.0
- */
- public function build_query_string() {
- $this->query_string = '';
- foreach ( (array) array_keys( $this->query_vars ) as $wpvar ) {
- if ( '' != $this->query_vars[ $wpvar ] ) {
- $this->query_string .= ( strlen( $this->query_string ) < 1 ) ? '' : '&';
- if ( ! is_scalar( $this->query_vars[ $wpvar ] ) ) { // Discard non-scalars.
- continue;
- }
- $this->query_string .= $wpvar . '=' . rawurlencode( $this->query_vars[ $wpvar ] );
- }
- }
- if ( has_filter( 'query_string' ) ) { // Don't bother filtering and parsing if no plugins are hooked in.
- /**
- * Filters the query string before parsing.
- *
- * @since 1.5.0
- * @deprecated 2.1.0 Use {@see 'query_vars'} or {@see 'request'} filters instead.
- *
- * @param string $query_string The query string to modify.
- */
- $this->query_string = apply_filters_deprecated(
- 'query_string',
- array( $this->query_string ),
- '2.1.0',
- 'query_vars, request'
- );
- parse_str( $this->query_string, $this->query_vars );
- }
- }
- /**
- * Set up the WordPress Globals.
- *
- * The query_vars property will be extracted to the GLOBALS. So care should
- * be taken when naming global variables that might interfere with the
- * WordPress environment.
- *
- * @since 2.0.0
- *
- * @global WP_Query $wp_query WordPress Query object.
- * @global string $query_string Query string for the loop.
- * @global array $posts The found posts.
- * @global WP_Post|null $post The current post, if available.
- * @global string $request The SQL statement for the request.
- * @global int $more Only set, if single page or post.
- * @global int $single If single page or post. Only set, if single page or post.
- * @global WP_User $authordata Only set, if author archive.
- */
- public function register_globals() {
- global $wp_query;
- // Extract updated query vars back into global namespace.
- foreach ( (array) $wp_query->query_vars as $key => $value ) {
- $GLOBALS[ $key ] = $value;
- }
- $GLOBALS['query_string'] = $this->query_string;
- $GLOBALS['posts'] = & $wp_query->posts;
- $GLOBALS['post'] = isset( $wp_query->post ) ? $wp_query->post : null;
- $GLOBALS['request'] = $wp_query->request;
- if ( $wp_query->is_single() || $wp_query->is_page() ) {
- $GLOBALS['more'] = 1;
- $GLOBALS['single'] = 1;
- }
- if ( $wp_query->is_author() && isset( $wp_query->post ) ) {
- $GLOBALS['authordata'] = get_userdata( $wp_query->post->post_author );
- }
- }
- /**
- * Set up the current user.
- *
- * @since 2.0.0
- */
- public function init() {
- wp_get_current_user();
- }
- /**
- * Set up the Loop based on the query variables.
- *
- * @since 2.0.0
- *
- * @global WP_Query $wp_the_query WordPress Query object.
- */
- public function query_posts() {
- global $wp_the_query;
- $this->build_query_string();
- $wp_the_query->query( $this->query_vars );
- }
- /**
- * Set the Headers for 404, if nothing is found for requested URL.
- *
- * Issue a 404 if a request doesn't match any posts and doesn't match
- * any object (e.g. an existing-but-empty category, tag, author) and a 404 was not already
- * issued, and if the request was not a search or the homepage.
- *
- * Otherwise, issue a 200.
- *
- * This sets headers after posts have been queried. handle_404() really means "handle status."
- * By inspecting the result of querying posts, seemingly successful requests can be switched to
- * a 404 so that canonical redirection logic can kick in.
- *
- * @since 2.0.0
- *
- * @global WP_Query $wp_query WordPress Query object.
- */
- public function handle_404() {
- global $wp_query;
- /**
- * Filters whether to short-circuit default header status handling.
- *
- * Returning a non-false value from the filter will short-circuit the handling
- * and return early.
- *
- * @since 4.5.0
- *
- * @param bool $preempt Whether to short-circuit default header status handling. Default false.
- * @param WP_Query $wp_query WordPress Query object.
- */
- if ( false !== apply_filters( 'pre_handle_404', false, $wp_query ) ) {
- return;
- }
- // If we've already issued a 404, bail.
- if ( is_404() ) {
- return;
- }
- // Never 404 for the admin, robots, favicon, or if we found posts.
- if ( is_admin() || is_robots() || is_favicon() || $wp_query->posts ) {
- $success = true;
- if ( is_singular() ) {
- $p = false;
- if ( $wp_query->post instanceof WP_Post ) {
- $p = clone $wp_query->post;
- }
- // Only set X-Pingback for single posts that allow pings.
- if ( $p && pings_open( $p ) && ! headers_sent() ) {
- header( 'X-Pingback: ' . get_bloginfo( 'pingback_url', 'display' ) );
- }
- // Check for paged content that exceeds the max number of pages.
- $next = '<!--nextpage-->';
- if ( $p && false !== strpos( $p->post_content, $next ) && ! empty( $this->query_vars['page'] ) ) {
- $page = trim( $this->query_vars['page'], '/' );
- $success = (int) $page <= ( substr_count( $p->post_content, $next ) + 1 );
- }
- }
- if ( $success ) {
- status_header( 200 );
- return;
- }
- }
- // We will 404 for paged queries, as no posts were found.
- if ( ! is_paged() ) {
- // Don't 404 for authors without posts as long as they matched an author on this site.
- $author = get_query_var( 'author' );
- if ( is_author() && is_numeric( $author ) && $author > 0 && is_user_member_of_blog( $author ) ) {
- status_header( 200 );
- return;
- }
- // Don't 404 for these queries if they matched an object.
- if ( ( is_tag() || is_category() || is_tax() || is_post_type_archive() ) && get_queried_object() ) {
- status_header( 200 );
- return;
- }
- // Don't 404 for these queries either.
- if ( is_home() || is_search() || is_feed() ) {
- status_header( 200 );
- return;
- }
- }
- // Guess it's time to 404.
- $wp_query->set_404();
- status_header( 404 );
- nocache_headers();
- }
- /**
- * Sets up all of the variables required by the WordPress environment.
- *
- * The action {@see 'wp'} has one parameter that references the WP object. It
- * allows for accessing the properties and methods to further manipulate the
- * object.
- *
- * @since 2.0.0
- *
- * @param string|array $query_args Passed to parse_request().
- */
- public function main( $query_args = '' ) {
- $this->init();
- $this->parse_request( $query_args );
- $this->send_headers();
- $this->query_posts();
- $this->handle_404();
- $this->register_globals();
- /**
- * Fires once the WordPress environment has been set up.
- *
- * @since 2.1.0
- *
- * @param WP $this Current WordPress environment instance (passed by reference).
- */
- do_action_ref_array( 'wp', array( &$this ) );
- }
- }