Changeset 2627 for trunk/wp-includes/classes.php

Timestamp:

06/10/2005 11:15:13 PM (21 years ago)

Author:

ryan

Message:

Break blog header up into functional chunks. Stick it all in a WP class for now. Make wp() the front door. Move template/theme loader code into template-loader.php. Clean up feed file loadup. Modularize.

File:

• trunk/wp-includes/classes.php (modified) (2 diffs)

trunk/wp-includes/classes.php

@@ -662 +662 @@
                 }
         }
-}
-
-// Make a global instance.
-if (! isset($wp_query)) {
-    $wp_query = new WP_Query();
 }
 
@@ -1292 +1287 @@
 }
 
-// Make a global instance.
-if (! isset($wp_rewrite)) {
-    $wp_rewrite = new WP_Rewrite();
+class WP {
+        var $public_query_vars = array('m','p','posts','w', 'cat','withcomments','s','search','exact', 'sentence', 'debug', 'calendar','page','paged','more','tb', 'pb','author','order','orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'feed', 'author_name', 'static', 'pagename', 'page_id', 'error', 'comments_popup');
+
+        var $private_query_vars = array('posts_per_page', 'posts_per_archive_page', 'what_to_show', 'showposts', 'nopaging');
+
+        var $query_vars;
+        var $query_string;
+        var $did_permalink = false;
+
+        function parse_request($extra_query_vars = '') {
+                global $wp_rewrite;
+
+                $this->query_vars = array();
+
+                if (! empty($extra_query_vars))
+                        parse_str($extra_query_vars, $extra_query_vars);
+
+                // Process PATH_INFO and 404.
+                if ((isset($_GET['error']) && $_GET['error'] == '404') ||
+                                ((! empty($_SERVER['PATH_INFO'])) &&
+                                 ('/' != $_SERVER['PATH_INFO']) &&
+                                 (false === strpos($_SERVER['PATH_INFO'], '.php'))
+                                 )) {
+
+                        $this->did_permalink = true;
+
+                        // If we match a rewrite rule, this will be cleared.
+                        $error = '404';
+
+                        // Fetch the rewrite rules.
+                        $rewrite = $wp_rewrite->wp_rewrite_rules();
+
+                        if (! empty($rewrite)) {
+                                $pathinfo = $_SERVER['PATH_INFO'];
+                                $req_uri = $_SERVER['REQUEST_URI'];      
+                                $home_path = parse_url(get_settings('home'));
+                                $home_path = $home_path['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);
+                                $req_uri = str_replace($home_path, '', $req_uri);
+                                $req_uri = trim($req_uri, '/');
+                                $pathinfo = trim($pathinfo, '/');
+
+                                // The requested permalink is in $pathinfo for path info requests and
+                                //  $req_uri for other requests.
+                                if (! empty($pathinfo)) {
+                                        $request = $pathinfo;
+                                } else {
+                                        $request = $req_uri;
+                                }
+
+                                // Look for matches.
+                                $request_match = $request;
+                                foreach ($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)) {
+                                                $request_match = $req_uri . '/' . $request;
+                                        }
+
+                                        if (preg_match("!^$match!", $request_match, $matches)) {
+                                                // Got a match.
+                                                // Trim the query of everything up to the '?'.
+                                                $query = preg_replace("!^.+\?!", '', $query);
+
+                                                // Substitute the substring matches into the query.
+                                                eval("\$query = \"$query\";");
+
+                                                // Parse the query.
+                                                parse_str($query, $query_vars);
+
+                                                // If we're processing a 404 request, clear the error var
+                                                // since we found something.
+                                                if (isset($_GET['error'])) {
+                                                        unset($_GET['error']);
+                                                }
+
+                                                if (isset($error)) {
+                                                        unset($error);
+                                                }
+
+                                                break;
+                                        }
+                                }
+                        }
+                }
+
+                $this->public_query_vars = apply_filters('query_vars', $this->public_query_vars);
+
+                for ($i=0; $i<count($this->public_query_vars); $i += 1) {
+                        $wpvar = $this->public_query_vars[$i];
+                        if (isset($extra_query_vars[$wpvar]))
+                                $this->query_vars[$wpvar] = $extra_query_vars[$wpvar];
+                        elseif (isset($GLOBALS[$wpvar]))
+                                $this->query_vars[$wpvar] = $GLOBALS[$wpvar];
+                        elseif (!empty($_POST[$wpvar]))
+                                $this->query_vars[$wpvar] = $_POST[$wpvar];
+                        elseif (!empty($_GET[$wpvar]))
+                                $this->query_vars[$wpvar] = $_GET[$wpvar];
+                        elseif (!empty($query_vars[$wpvar]))
+                                $this->query_vars[$wpvar] = $query_vars[$wpvar];
+                        else
+                                $this->query_vars[$wpvar] = '';
+                }
+        }
+
+        function send_headers() {
+                @header('X-Pingback: '. get_bloginfo('pingback_url'));
+                if ( !empty($this->query_vars['error']) && '404' == $this->query_vars['error'] ) {
+                        status_header( 404 );
+                } else if ( empty($this->query_vars['feed']) ) {
+                        @header('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 ( $this->query_vars['withcomments'] )
+                                $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) . '"';
+                        @header("Last-Modified: $wp_last_modified");
+                        @header("ETag: $wp_etag");
+
+                        // Support for Conditional GET
+                        if (isset($_SERVER['HTTP_IF_NONE_MATCH'])) $client_etag = stripslashes($_SERVER['HTTP_IF_NONE_MATCH']);
+                        else $client_etag = false;
+
+                        $client_last_modified = 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_header( 304 );
+                                exit;
+                        }
+                }
+        }
+
+        function build_query_string() {
+                $this->query_string = '';
+
+                foreach ($this->public_query_vars as $wpvar) {
+                        if (isset($this->query_vars[$wpvar]) && '' != $this->query_vars[$wpvar]) {
+                                $this->query_string .= (strlen($this->query_string) < 1) ? '' : '&';
+                                $this->query_string .= $wpvar . '=' . rawurlencode($this->query_vars[$wpvar]);
+                        }
+                }
+
+                foreach ($this->private_query_vars as $wpvar) {
+                        if (isset($GLOBALS[$wpvar]) && '' != $GLOBALS[$wpvar]) {
+                                $this->query_string .= (strlen($this->query_string) < 1) ? '' : '&';
+                                $this->query_string .= $wpvar . '=' . rawurlencode($GLOBALS[$wpvar]);
+                        }
+                }
+
+                $this->query_string = apply_filters('query_string', $this->query_string);
+        }
+
+        function register_globals() {
+                global $wp_query;
+                // Extract updated query vars back into global namespace.
+                foreach ($wp_query->query_vars as $key => $value) {
+                        $GLOBALS[$key] = $value;
+                }
+
+                $GLOBALS['query_string'] = & $this->query_string;
+                $GLOBALS['posts'] = & $wp_query->posts;
+                $GLOBALS['post'] = & $wp_query->post;
+
+                if ( is_single() || is_page() ) {
+                        $GLOBALS['more'] = 1;
+                        $GLOBALS['single'] = 1;
+                }
+        }
+
+        function prime_caches() {
+                update_category_cache();
+                get_currentuserinfo();
+        }
+
+        function query_posts() {
+                $this->build_query_string();
+                query_posts($this->query_string);
+        }
+
+        function handle_404() {
+                global $wp_query;
+                // Issue a 404 if a permalink request doesn't match any posts.  Don't
+                // issue a 404 if one was already issued, if the request was a search,
+                // or if the request was a regular query string request rather than a
+                // permalink request.
+                if ( (0 == count($wp_query->posts)) && !is_404() && !is_search()
+                                 && ( $this->did_permalink || (!empty($_SERVER['QUERY_STRING']) &&
+                                                                                                                                        (false === strpos($_SERVER['REQUEST_URI'], '?'))) ) ) {
+                        $wp_query->is_404 = true;
+                        status_header( 404 );
+                }       else {
+                        status_header( 200 );
+                }
+        }
+
+        function main($query_args = '') {
+                $this->parse_request($query_args);
+                $this->send_headers();
+                $this->prime_caches();
+                $this->query_posts();
+                $this->handle_404();
+                $this->register_globals();
+        }
+
+        function WP() {
+                // Empty.
+        }
 }