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

Timestamp:

06/10/2005 11:15:13 PM (19 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.
+    }
 }