diff -r 000000000000 -r d970ebf37754 wp/wp-includes/class-wp.php --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/wp/wp-includes/class-wp.php Wed Nov 06 03:21:17 2013 +0000 @@ -0,0 +1,645 @@ +public_query_vars) ) + $this->public_query_vars[] = $qv; + } + + /** + * Set the value of a query variable. + * + * @since 2.3.0 + * + * @param string $key Query variable name. + * @param mixed $value Query variable value. + */ + function set_query_var($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 + * + * @param array|string $extra_query_vars Set the extra query variables. + */ + function parse_request($extra_query_vars = '') { + global $wp_rewrite; + + 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 = & $extra_query_vars; + else if (! empty($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 ), '/' ); + + // 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|i", '', $req_uri); + $req_uri = trim($req_uri, '/'); + $pathinfo = trim($pathinfo, '/'); + $pathinfo = preg_replace("|^$home_path|i", '', $pathinfo); + $pathinfo = trim($pathinfo, '/'); + $self = trim($self, '/'); + $self = preg_replace("|^$home_path|i", '', $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) ) { + $request = $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 = ''; + $request = $req_uri; + } + + $this->request = $request; + + // Look for matches. + $request_match = $request; + 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 => $query ) { + // If the requesting file is the anchor of the match, prepend it to the path info. + if ( ! empty($req_uri) && strpos($match, $req_uri) === 0 && $req_uri != $request ) + $request_match = $req_uri . '/' . $request; + + if ( preg_match("#^$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, lets check to be sure about it + if ( ! get_page_by_path( $matches[ $varmatch[1] ] ) ) + 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, $_GET['error'] ); + } + + // If req_uri is empty or if it is a request for ourself, unset error. + if ( empty($request) || $req_uri == $self || strpos($_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; + } + } + + $this->public_query_vars = apply_filters('query_vars', $this->public_query_vars); + + foreach ( get_post_types( array(), 'objects' ) as $post_type => $t ) + if ( $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( $_POST[$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_object( $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] ); + + // 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 ); + } + } + + 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; + + $this->query_vars = apply_filters('request', $this->query_vars); + + do_action_ref_array('parse_request', array(&$this)); + } + + /** + * Send additional HTTP headers for caching, content type, etc. + * + * Sets the X-Pingback header, 404 status (if 404), Content-type. If showing + * a feed, it will also send last-modified, etag, and 304 status if needed. + * + * @since 2.0.0 + */ + function send_headers() { + $headers = array('X-Pingback' => get_bloginfo('pingback_url')); + $status = null; + $exit_required = false; + + if ( is_user_logged_in() ) + $headers = array_merge($headers, wp_get_nocache_headers()); + 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 ) ) ) { + $exit_required = true; + } + } else if ( empty($this->query_vars['feed']) ) { + $headers['Content-Type'] = get_option('html_type') . '; charset=' . get_option('blog_charset'); + } else { + // We're showing a feed, so WP is indeed the only thing that last changed + if ( !empty($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'), 0).' GMT'; + else + $wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' 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; + } + } + + $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'] ); + + // In PHP 5.3+, make sure we are not sending a Last-Modified header. + if ( function_exists( 'header_remove' ) ) { + @header_remove( 'Last-Modified' ); + } else { + // In PHP 5.2, send an empty Last-Modified header, but only as a + // last resort to override a header already sent. #WP23021 + foreach ( headers_list() as $header ) { + if ( 0 === stripos( $header, 'Last-Modified' ) ) { + $headers['Last-Modified'] = ''; + break; + } + } + } + } + + foreach( (array) $headers as $name => $field_value ) + @header("{$name}: {$field_value}"); + + if ( $exit_required ) + exit(); + + do_action_ref_array('send_headers', array(&$this)); + } + + /** + * Sets the query string property based off of the query variable property. + * + * The 'query_string' filter is deprecated, but still works. Plugins should + * use the 'request' filter instead. + * + * @since 2.0.0 + */ + 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]); + } + } + + // query_string filter deprecated. Use request filter instead. + if ( has_filter('query_string') ) { // Don't bother filtering and parsing if no plugins are hooked in. + $this->query_string = apply_filters('query_string', $this->query_string); + parse_str($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. + * + * @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. + * + * @since 2.0.0 + */ + 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( $wp_query->post->post_author ); + } + + /** + * Set up the current user. + * + * @since 2.0.0 + */ + function init() { + wp_get_current_user(); + } + + /** + * Set up the Loop based on the query variables. + * + * @uses WP::$query_vars + * @since 2.0.0 + */ + 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. + * + * @since 2.0.0 + */ + function handle_404() { + global $wp_query; + + // If we've already issued a 404, bail. + if ( is_404() ) + return; + + // Never 404 for the admin, robots, or if we found posts. + if ( is_admin() || is_robots() || $wp_query->posts ) { + status_header( 200 ); + return; + } + + // We will 404 for paged queries, as no posts were found. + if ( ! is_paged() ) { + + // Don't 404 for these queries if they matched an object. + if ( ( is_tag() || is_category() || is_tax() || is_author() || is_post_type_archive() ) && $wp_query->get_queried_object() ) { + status_header( 200 ); + return; + } + + // Don't 404 for these queries either. + if ( is_home() || is_search() ) { + 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 '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 $query_args Passed to {@link parse_request()} + */ + function main($query_args = '') { + $this->init(); + $this->parse_request($query_args); + $this->send_headers(); + $this->query_posts(); + $this->handle_404(); + $this->register_globals(); + do_action_ref_array('wp', array(&$this)); + } + +} + +/** + * Helper class to remove the need to use eval to replace $matches[] in query strings. + * + * @since 2.9.0 + */ +class WP_MatchesMapRegex { + /** + * store for matches + * + * @access private + * @var array + */ + var $_matches; + + /** + * store for mapping result + * + * @access public + * @var string + */ + var $output; + + /** + * subject to perform mapping on (query string containing $matches[] references + * + * @access private + * @var string + */ + var $_subject; + + /** + * regexp pattern to match $matches[] references + * + * @var string + */ + var $_pattern = '(\$matches\[[1-9]+[0-9]*\])'; // magic number + + /** + * constructor + * + * @param string $subject subject if regex + * @param array $matches data to use in map + * @return self + */ + function WP_MatchesMapRegex($subject, $matches) { + $this->_subject = $subject; + $this->_matches = $matches; + $this->output = $this->_map(); + } + + /** + * Substitute substring matches in subject. + * + * static helper function to ease use + * + * @access public + * @param string $subject subject + * @param array $matches data used for substitution + * @return string + */ + public static function apply($subject, $matches) { + $oSelf = new WP_MatchesMapRegex($subject, $matches); + return $oSelf->output; + } + + /** + * do the actual mapping + * + * @access private + * @return string + */ + function _map() { + $callback = array($this, 'callback'); + return preg_replace_callback($this->_pattern, $callback, $this->_subject); + } + + /** + * preg_replace_callback hook + * + * @access public + * @param array $matches preg_replace regexp matches + * @return string + */ + function callback($matches) { + $index = intval(substr($matches[0], 9, -1)); + return ( isset( $this->_matches[$index] ) ? urlencode($this->_matches[$index]) : '' ); + } + +}