--- /dev/null
+<?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
+ * @access public
+ * @var array
+ */
+ var $public_query_vars = array('m', 'p', 'posts', 'w', 'cat', 'withcomments', 'withoutcomments', 's', 'search', 'exact', 'sentence', 'debug', 'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order', 'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'tag', 'feed', 'author_name', 'static', 'pagename', 'page_id', 'error', 'comments_popup', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview', 'robots', 'taxonomy', 'term', 'cpage', 'post_type');
+
+ /**
+ * Private query variables.
+ *
+ * Long list of private query variables.
+ *
+ * @since 2.0.0
+ * @var array
+ */
+ var $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');
+
+ /**
+ * Extra query variables set by the user.
+ *
+ * @since 2.1.0
+ * @var array
+ */
+ var $extra_query_vars = array();
+
+ /**
+ * Query variables for setting up the WordPress Query Loop.
+ *
+ * @since 2.0.0
+ * @var array
+ */
+ var $query_vars;
+
+ /**
+ * String parsed to set the query variables.
+ *
+ * @since 2.0.0
+ * @var string
+ */
+ var $query_string;
+
+ /**
+ * Permalink or requested URI.
+ *
+ * @since 2.0.0
+ * @var string
+ */
+ var $request;
+
+ /**
+ * Rewrite rule the request matched.
+ *
+ * @since 2.0.0
+ * @var string
+ */
+ var $matched_rule;
+
+ /**
+ * Rewrite query the request matched.
+ *
+ * @since 2.0.0
+ * @var string
+ */
+ var $matched_query;
+
+ /**
+ * Whether already did the permalink.
+ *
+ * @since 2.0.0
+ * @var bool
+ */
+ var $did_permalink = false;
+
+ /**
+ * Add name to list of public query variables.
+ *
+ * @since 2.1.0
+ *
+ * @param string $qv Query variable name.
+ */
+ function add_query_var($qv) {
+ if ( !in_array($qv, $this->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;
+
+ $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';
+ $this->did_permalink = true;
+
+ if ( isset($_SERVER['PATH_INFO']) )
+ $pathinfo = $_SERVER['PATH_INFO'];
+ else
+ $pathinfo = '';
+ $pathinfo_array = explode('?', $pathinfo);
+ $pathinfo = str_replace("%", "%25", $pathinfo_array[0]);
+ $req_uri = $_SERVER['REQUEST_URI'];
+ $req_uri_array = explode('?', $req_uri);
+ $req_uri = $req_uri_array[0];
+ $self = $_SERVER['PHP_SELF'];
+ $home_path = parse_url(home_url());
+ if ( isset($home_path['path']) )
+ $home_path = $home_path['path'];
+ else
+ $home_path = '';
+ $home_path = trim($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|", '', $req_uri);
+ $req_uri = trim($req_uri, '/');
+ $pathinfo = trim($pathinfo, '/');
+ $pathinfo = preg_replace("|^$home_path|", '', $pathinfo);
+ $pathinfo = trim($pathinfo, '/');
+ $self = trim($self, '/');
+ $self = preg_replace("|^$home_path|", '', $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;
+ foreach ( (array) $rewrite as $match => $query) {
+ // Don't try to match against AtomPub calls
+ if ( $req_uri == 'wp-app.php' )
+ break;
+
+ // If the requesting file is the anchor of the match, prepend it
+ // to the path info.
+ if ( (! empty($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) ) {
+ // Got a match.
+ $this->matched_rule = $match;
+
+ // 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, $perma_query_vars);
+
+ // If we're processing a 404 request, clear the error var
+ // since we found something.
+ if ( isset($_GET['error']) )
+ unset($_GET['error']);
+
+ if ( isset($error) )
+ unset($error);
+
+ break;
+ }
+ }
+
+ // If req_uri is empty or if it is a request for ourself, unset error.
+ if ( empty($request) || $req_uri == $self || strpos($_SERVER['PHP_SELF'], 'wp-admin/') !== false ) {
+ if ( isset($_GET['error']) )
+ unset($_GET['error']);
+
+ if ( isset($error) )
+ unset($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 ( $GLOBALS['wp_post_types'] 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 ( $GLOBALS['wp_taxonomies'] 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']) && '404' == $this->query_vars['error'] ) {
+ $status = 404;
+ if ( !is_user_logged_in() )
+ $headers = array_merge($headers, wp_get_nocache_headers());
+ $headers['Content-Type'] = get_option('html_type') . '; charset=' . get_option('blog_charset');
+ } else if ( empty($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'])
+ || ( 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']))
+ $client_etag = stripslashes(stripslashes($_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 );
+ 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 int $more Only set, if single page or post.
+ * @global int $single If single page or post. Only set, if single page or post.
+ *
+ * @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 ( is_single() || is_page() ) {
+ $GLOBALS['more'] = 1;
+ $GLOBALS['single'] = 1;
+ }
+ }
+
+ /**
+ * Set up the current user.
+ *
+ * @since 2.0.0
+ */
+ function init() {
+ wp_get_current_user();
+ }
+
+ /**
+ * Set up the Loop based on the query variables.
+ *
+ * @uses WP::$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 ( !is_admin() && ( 0 == count( $wp_query->posts ) ) && !is_404() && !is_robots() && !is_search() && !is_home() ) {
+ // Don't 404 for these queries if they matched an object.
+ if ( ( is_tag() || is_category() || is_tax() || is_author() ) && $wp_query->get_queried_object() && !is_paged() ) {
+ if ( !is_404() )
+ status_header( 200 );
+ return;
+ }
+ $wp_query->set_404();
+ status_header( 404 );
+ nocache_headers();
+ } elseif ( !is_404() ) {
+ status_header( 200 );
+ }
+ }
+
+ /**
+ * 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));
+ }
+
+ /**
+ * PHP4 Constructor - Does nothing.
+ *
+ * Call main() method when ready to run setup.
+ *
+ * @since 2.0.0
+ *
+ * @return WP
+ */
+ function WP() {
+ // Empty.
+ }
+}
+
+/**
+ * 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 $matches data used for subsitution
+ * @return string
+ */
+ function apply($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]) : '' );
+ }
+
+}
+
+?>
scripts.mit.edu / autoinstalls / wordpress.git / blobdiff