713 lines
21 KiB
PHP
713 lines
21 KiB
PHP
<?php
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class WP {
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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', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview', 'robots');
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var $private_query_vars = array('offset', 'posts_per_page', 'posts_per_archive_page', 'what_to_show', 'showposts', 'nopaging', 'post_type');
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var $extra_query_vars = array();
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var $query_vars;
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var $query_string;
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var $request;
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var $matched_rule;
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var $matched_query;
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var $did_permalink = false;
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function add_query_var($qv) {
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$this->public_query_vars[] = $qv;
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}
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function parse_request($extra_query_vars = '') {
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global $wp_rewrite;
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$this->query_vars = array();
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if ( is_array($extra_query_vars) )
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$this->extra_query_vars = & $extra_query_vars;
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else if (! empty($extra_query_vars))
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parse_str($extra_query_vars, $this->extra_query_vars);
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// Process PATH_INFO, REQUEST_URI, and 404 for permalinks.
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// Fetch the rewrite rules.
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$rewrite = $wp_rewrite->wp_rewrite_rules();
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if (! empty($rewrite)) {
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// If we match a rewrite rule, this will be cleared.
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$error = '404';
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$this->did_permalink = true;
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if ( isset($_SERVER['PATH_INFO']) )
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$pathinfo = $_SERVER['PATH_INFO'];
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else
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$pathinfo = '';
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$pathinfo_array = explode('?', $pathinfo);
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$pathinfo = str_replace("%", "%25", $pathinfo_array[0]);
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$req_uri = $_SERVER['REQUEST_URI'];
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$req_uri_array = explode('?', $req_uri);
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$req_uri = $req_uri_array[0];
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$self = $_SERVER['PHP_SELF'];
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$home_path = parse_url(get_option('home'));
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if ( isset($home_path['path']) )
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$home_path = $home_path['path'];
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else
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$home_path = '';
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$home_path = trim($home_path, '/');
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// Trim path info from the end and the leading home path from the
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// front. For path info requests, this leaves us with the requesting
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// filename, if any. For 404 requests, this leaves us with the
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// requested permalink.
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$req_uri = str_replace($pathinfo, '', $req_uri);
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$req_uri = trim($req_uri, '/');
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$req_uri = preg_replace("|^$home_path|", '', $req_uri);
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$req_uri = trim($req_uri, '/');
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$pathinfo = trim($pathinfo, '/');
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$pathinfo = preg_replace("|^$home_path|", '', $pathinfo);
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$pathinfo = trim($pathinfo, '/');
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$self = trim($self, '/');
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$self = preg_replace("|^$home_path|", '', $self);
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$self = str_replace($home_path, '', $self);
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$self = trim($self, '/');
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// The requested permalink is in $pathinfo for path info requests and
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// $req_uri for other requests.
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if ( ! empty($pathinfo) && !preg_match('|^.*' . $wp_rewrite->index . '$|', $pathinfo) ) {
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$request = $pathinfo;
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} else {
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// If the request uri is the index, blank it out so that we don't try to match it against a rule.
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if ( $req_uri == $wp_rewrite->index )
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$req_uri = '';
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$request = $req_uri;
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}
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$this->request = $request;
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// Look for matches.
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$request_match = $request;
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foreach ($rewrite as $match => $query) {
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// If the requesting file is the anchor of the match, prepend it
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// to the path info.
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if ((! empty($req_uri)) && (strpos($match, $req_uri) === 0) && ($req_uri != $request)) {
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$request_match = $req_uri . '/' . $request;
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}
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if (preg_match("!^$match!", $request_match, $matches) ||
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preg_match("!^$match!", urldecode($request_match), $matches)) {
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// Got a match.
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$this->matched_rule = $match;
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// Trim the query of everything up to the '?'.
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$query = preg_replace("!^.+\?!", '', $query);
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// Substitute the substring matches into the query.
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eval("\$query = \"$query\";");
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$this->matched_query = $query;
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// Parse the query.
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parse_str($query, $perma_query_vars);
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// If we're processing a 404 request, clear the error var
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// since we found something.
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if (isset($_GET['error']))
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unset($_GET['error']);
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if (isset($error))
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unset($error);
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break;
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}
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}
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// If req_uri is empty or if it is a request for ourself, unset error.
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if ( empty($request) || $req_uri == $self || strstr($_SERVER['PHP_SELF'], 'wp-admin/') ) {
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if (isset($_GET['error']))
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unset($_GET['error']);
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if (isset($error))
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unset($error);
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if ( isset($perma_query_vars) && strstr($_SERVER['PHP_SELF'], 'wp-admin/') )
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unset($perma_query_vars);
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$this->did_permalink = false;
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}
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}
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$this->public_query_vars = apply_filters('query_vars', $this->public_query_vars);
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for ($i=0; $i<count($this->public_query_vars); $i += 1) {
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$wpvar = $this->public_query_vars[$i];
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if (isset($this->extra_query_vars[$wpvar]))
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$this->query_vars[$wpvar] = $this->extra_query_vars[$wpvar];
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elseif (isset($GLOBALS[$wpvar]))
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$this->query_vars[$wpvar] = $GLOBALS[$wpvar];
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elseif (!empty($_POST[$wpvar]))
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$this->query_vars[$wpvar] = $_POST[$wpvar];
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elseif (!empty($_GET[$wpvar]))
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$this->query_vars[$wpvar] = $_GET[$wpvar];
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elseif (!empty($perma_query_vars[$wpvar]))
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$this->query_vars[$wpvar] = $perma_query_vars[$wpvar];
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}
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foreach ($this->private_query_vars as $var) {
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if (isset($this->extra_query_vars[$var]))
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$this->query_vars[$var] = $this->extra_query_vars[$var];
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elseif (isset($GLOBALS[$var]) && '' != $GLOBALS[$var])
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$this->query_vars[$var] = $GLOBALS[$var];
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}
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if ( isset($error) )
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$this->query_vars['error'] = $error;
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$this->query_vars = apply_filters('request', $this->query_vars);
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do_action_ref_array('parse_request', array(&$this));
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}
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function send_headers() {
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@header('X-Pingback: '. get_bloginfo('pingback_url'));
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if ( is_user_logged_in() )
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nocache_headers();
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if ( !empty($this->query_vars['error']) && '404' == $this->query_vars['error'] ) {
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status_header( 404 );
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if ( !is_user_logged_in() )
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nocache_headers();
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@header('Content-type: ' . get_option('html_type') . '; charset=' . get_option('blog_charset'));
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} else if ( empty($this->query_vars['feed']) ) {
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@header('Content-type: ' . get_option('html_type') . '; charset=' . get_option('blog_charset'));
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} else {
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// We're showing a feed, so WP is indeed the only thing that last changed
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if ( $this->query_vars['withcomments'] )
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$wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastcommentmodified('GMT'), 0).' GMT';
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else
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$wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' GMT';
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$wp_etag = '"' . md5($wp_last_modified) . '"';
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@header("Last-Modified: $wp_last_modified");
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@header("ETag: $wp_etag");
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// Support for Conditional GET
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if (isset($_SERVER['HTTP_IF_NONE_MATCH']))
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$client_etag = stripslashes(stripslashes($_SERVER['HTTP_IF_NONE_MATCH']));
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else $client_etag = false;
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$client_last_modified = trim( $_SERVER['HTTP_IF_MODIFIED_SINCE']);
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// If string is empty, return 0. If not, attempt to parse into a timestamp
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$client_modified_timestamp = $client_last_modified ? strtotime($client_last_modified) : 0;
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// Make a timestamp for our most recent modification...
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$wp_modified_timestamp = strtotime($wp_last_modified);
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if ( ($client_last_modified && $client_etag) ?
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(($client_modified_timestamp >= $wp_modified_timestamp) && ($client_etag == $wp_etag)) :
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(($client_modified_timestamp >= $wp_modified_timestamp) || ($client_etag == $wp_etag)) ) {
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status_header( 304 );
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exit;
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}
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}
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do_action_ref_array('send_headers', array(&$this));
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}
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function build_query_string() {
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$this->query_string = '';
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foreach (array_keys($this->query_vars) as $wpvar) {
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if ( '' != $this->query_vars[$wpvar] ) {
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$this->query_string .= (strlen($this->query_string) < 1) ? '' : '&';
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$this->query_string .= $wpvar . '=' . rawurlencode($this->query_vars[$wpvar]);
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}
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}
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// query_string filter deprecated. Use request filter instead.
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global $wp_filter;
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if ( isset($wp_filter['query_string']) ) { // Don't bother filtering and parsing if no plugins are hooked in.
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$this->query_string = apply_filters('query_string', $this->query_string);
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parse_str($this->query_string, $this->query_vars);
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}
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}
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function register_globals() {
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global $wp_query;
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// Extract updated query vars back into global namespace.
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foreach ($wp_query->query_vars as $key => $value) {
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$GLOBALS[$key] = $value;
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}
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$GLOBALS['query_string'] = & $this->query_string;
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$GLOBALS['posts'] = & $wp_query->posts;
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$GLOBALS['post'] = & $wp_query->post;
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$GLOBALS['request'] = & $wp_query->request;
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if ( is_single() || is_page() ) {
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$GLOBALS['more'] = 1;
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$GLOBALS['single'] = 1;
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}
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}
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function init() {
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wp_get_current_user();
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}
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function query_posts() {
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$this->build_query_string();
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query_posts($this->query_vars);
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}
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function handle_404() {
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global $wp_query;
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// Issue a 404 if a permalink request doesn't match any posts. Don't
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// issue a 404 if one was already issued, if the request was a search,
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// or if the request was a regular query string request rather than a
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// permalink request.
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if ( (0 == count($wp_query->posts)) && !is_404() && !is_search() && ( $this->did_permalink || (!empty($_SERVER['QUERY_STRING']) && (false === strpos($_SERVER['REQUEST_URI'], '?'))) ) ) {
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$wp_query->set_404();
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status_header( 404 );
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nocache_headers();
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} elseif( is_404() != true ) {
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status_header( 200 );
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}
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}
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function main($query_args = '') {
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$this->init();
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$this->parse_request($query_args);
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$this->send_headers();
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$this->query_posts();
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$this->handle_404();
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$this->register_globals();
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do_action_ref_array('wp', array(&$this));
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}
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function WP() {
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// Empty.
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}
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}
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class WP_Error {
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var $errors = array();
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var $error_data = array();
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function WP_Error($code = '', $message = '', $data = '') {
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if ( empty($code) )
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return;
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$this->errors[$code][] = $message;
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if ( ! empty($data) )
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$this->error_data[$code] = $data;
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}
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function get_error_codes() {
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if ( empty($this->errors) )
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return array();
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return array_keys($this->errors);
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}
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function get_error_code() {
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$codes = $this->get_error_codes();
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if ( empty($codes) )
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return '';
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return $codes[0];
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}
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function get_error_messages($code = '') {
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// Return all messages if no code specified.
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if ( empty($code) ) {
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$all_messages = array();
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foreach ( $this->errors as $code => $messages )
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$all_messages = array_merge($all_messages, $messages);
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return $all_messages;
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}
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if ( isset($this->errors[$code]) )
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return $this->errors[$code];
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else
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return array();
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}
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function get_error_message($code = '') {
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if ( empty($code) )
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$code = $this->get_error_code();
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$messages = $this->get_error_messages($code);
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if ( empty($messages) )
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return '';
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return $messages[0];
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}
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function get_error_data($code = '') {
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if ( empty($code) )
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$code = $this->get_error_code();
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if ( isset($this->error_data[$code]) )
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return $this->error_data[$code];
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return null;
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}
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function add($code, $message, $data = '') {
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$this->errors[$code][] = $message;
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if ( ! empty($data) )
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$this->error_data[$code] = $data;
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}
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function add_data($data, $code = '') {
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if ( empty($code) )
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$code = $this->get_error_code();
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$this->error_data[$code] = $data;
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}
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}
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function is_wp_error($thing) {
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if ( is_object($thing) && is_a($thing, 'WP_Error') )
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return true;
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return false;
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}
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// A class for displaying various tree-like structures. Extend the Walker class to use it, see examples at the bottom
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class Walker {
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var $tree_type;
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var $db_fields;
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//abstract callbacks
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function start_lvl($output) { return $output; }
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function end_lvl($output) { return $output; }
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function start_el($output) { return $output; }
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function end_el($output) { return $output; }
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function walk($elements, $to_depth) {
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$args = array_slice(func_get_args(), 2); $parents = array(); $depth = 1; $previous_element = ''; $output = '';
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//padding at the end
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$last_element->post_parent = 0;
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$last_element->post_id = 0;
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$elements[] = $last_element;
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$id_field = $this->db_fields['id'];
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$parent_field = $this->db_fields['parent'];
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$flat = ($to_depth == -1) ? true : false;
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foreach ( $elements as $element ) {
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// If flat, start and end the element and skip the level checks.
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if ( $flat) {
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// Start the element.
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if ( isset($element->$id_field) && $element->$id_field != 0 ) {
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$cb_args = array_merge( array($output, $element, $depth - 1), $args);
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$output = call_user_func_array(array(&$this, 'start_el'), $cb_args);
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}
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// End the element.
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if ( isset($element->$id_field) && $element->$id_field != 0 ) {
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$cb_args = array_merge( array($output, $element, $depth - 1), $args);
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$output = call_user_func_array(array(&$this, 'end_el'), $cb_args);
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}
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continue;
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}
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// Walk the tree.
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if ( !empty($previous_element) && ($element->$parent_field == $previous_element->$id_field) ) {
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// Previous element is my parent. Descend a level.
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array_unshift($parents, $previous_element);
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$depth++; //always do this so when we start the element further down, we know where we are
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if ( !$to_depth || ($depth < $to_depth) ) { //only descend if we're below $to_depth
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$cb_args = array_merge( array($output, $depth - 1), $args);
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$output = call_user_func_array(array(&$this, 'start_lvl'), $cb_args);
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}
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} else if ( $element->$parent_field == $previous_element->$parent_field) {
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// On the same level as previous element.
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if ( !$to_depth || ($depth <= $to_depth) ) {
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$cb_args = array_merge( array($output, $previous_element, $depth - 1), $args);
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$output = call_user_func_array(array(&$this, 'end_el'), $cb_args);
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}
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} else if ( $depth > 1 ) {
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// Ascend one or more levels.
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if ( !$to_depth || ($depth <= $to_depth) ) {
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$cb_args = array_merge( array($output, $previous_element, $depth - 1), $args);
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$output = call_user_func_array(array(&$this, 'end_el'), $cb_args);
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}
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while ( $parent = array_shift($parents) ) {
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$depth--;
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if ( !$to_depth || ($depth < $to_depth) ) {
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$cb_args = array_merge( array($output, $depth - 1), $args);
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$output = call_user_func_array(array(&$this, 'end_lvl'), $cb_args);
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$cb_args = array_merge( array($output, $parent, $depth - 1), $args);
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$output = call_user_func_array(array(&$this, 'end_el'), $cb_args);
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}
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if ( $element->$parent_field == $parents[0]->$id_field ) {
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break;
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}
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}
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} else if ( !empty($previous_element) ) {
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// Close off previous element.
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if ( !$to_depth || ($depth <= $to_depth) ) {
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$cb_args = array_merge( array($output, $previous_element, $depth - 1), $args);
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$output = call_user_func_array(array(&$this, 'end_el'), $cb_args);
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}
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}
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// Start the element.
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if ( !$to_depth || ($depth <= $to_depth) ) {
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if ( $element->$id_field != 0 ) {
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$cb_args = array_merge( array($output, $element, $depth - 1), $args);
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$output = call_user_func_array(array(&$this, 'start_el'), $cb_args);
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}
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}
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$previous_element = $element;
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}
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return $output;
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}
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}
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class Walker_Page extends Walker {
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var $tree_type = 'page';
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var $db_fields = array ('parent' => 'post_parent', 'id' => 'ID'); //TODO: decouple this
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function start_lvl($output, $depth) {
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$indent = str_repeat("\t", $depth);
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$output .= "$indent<ul>\n";
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return $output;
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}
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function end_lvl($output, $depth) {
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$indent = str_repeat("\t", $depth);
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$output .= "$indent</ul>\n";
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return $output;
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}
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function start_el($output, $page, $depth, $current_page, $show_date, $date_format) {
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if ( $depth )
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$indent = str_repeat("\t", $depth);
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$css_class = 'page_item';
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if ( $page->ID == $current_page )
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$css_class .= ' current_page_item';
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$output .= $indent . '<li class="' . $css_class . '"><a href="' . get_page_link($page->ID) . '" title="' . wp_specialchars($page->post_title, 1) . '">' . $page->post_title . '</a>';
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if ( !empty($show_date) ) {
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if ( 'modified' == $show_date )
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$time = $page->post_modified;
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else
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$time = $page->post_date;
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$output .= " " . mysql2date($date_format, $time);
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}
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return $output;
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}
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function end_el($output, $page, $depth) {
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$output .= "</li>\n";
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return $output;
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}
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}
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class Walker_PageDropdown extends Walker {
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var $tree_type = 'page';
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var $db_fields = array ('parent' => 'post_parent', 'id' => 'ID'); //TODO: decouple this
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function start_el($output, $page, $depth, $args) {
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$pad = str_repeat(' ', $depth * 3);
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$output .= "\t<option value=\"$page->ID\"";
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if ( $page->ID == $args['selected'] )
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$output .= ' selected="selected"';
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$output .= '>';
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$title = wp_specialchars($page->post_title);
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$output .= "$pad$title";
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$output .= "</option>\n";
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return $output;
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}
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}
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class Walker_Category extends Walker {
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var $tree_type = 'category';
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var $db_fields = array ('parent' => 'category_parent', 'id' => 'cat_ID'); //TODO: decouple this
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function start_lvl($output, $depth, $args) {
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if ( 'list' != $args['style'] )
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return $output;
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$indent = str_repeat("\t", $depth);
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$output .= "$indent<ul class='children'>\n";
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return $output;
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}
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function end_lvl($output, $depth, $args) {
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if ( 'list' != $args['style'] )
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return $output;
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$indent = str_repeat("\t", $depth);
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$output .= "$indent</ul>\n";
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return $output;
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}
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function start_el($output, $category, $depth, $args) {
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extract($args);
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$link = '<a href="' . get_category_link($category->cat_ID) . '" ';
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if ( $use_desc_for_title == 0 || empty($category->category_description) )
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$link .= 'title="'. sprintf(__("View all posts filed under %s"), wp_specialchars($category->cat_name, 1)) . '"';
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else
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$link .= 'title="' . wp_specialchars(apply_filters('category_description',$category->category_description,$category),1) . '"';
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$link .= '>';
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$link .= apply_filters('list_cats', $category->cat_name, $category).'</a>';
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if ( (! empty($feed_image)) || (! empty($feed)) ) {
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$link .= ' ';
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if ( empty($feed_image) )
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$link .= '(';
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$link .= '<a href="' . get_category_rss_link(0, $category->cat_ID, $category->category_nicename) . '"';
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if ( !empty($feed) ) {
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$title = ' title="' . $feed . '"';
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$alt = ' alt="' . $feed . '"';
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$name = $feed;
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$link .= $title;
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}
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$link .= '>';
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if ( !empty($feed_image) )
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$link .= "<img src='$feed_image' $alt$title" . ' />';
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else
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$link .= $name;
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$link .= '</a>';
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if (empty($feed_image))
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$link .= ')';
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}
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if ( isset($show_count) && $show_count )
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$link .= ' ('.intval($category->category_count).')';
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if ( isset($show_date) && $show_date ) {
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$link .= ' ' . gmdate('Y-m-d', $category->last_update_timestamp);
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}
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if ( 'list' == $args['style'] ) {
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$output .= "\t<li";
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if ( ($category->cat_ID == $current_category) && is_category() )
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$output .= ' class="current-cat"';
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$output .= ">$link\n";
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} else {
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$output .= "\t$link<br />\n";
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}
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return $output;
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}
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function end_el($output, $page, $depth, $args) {
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if ( 'list' != $args['style'] )
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return $output;
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$output .= "</li>\n";
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return $output;
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}
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}
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class Walker_CategoryDropdown extends Walker {
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var $tree_type = 'category';
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var $db_fields = array ('parent' => 'category_parent', 'id' => 'cat_ID'); //TODO: decouple this
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function start_el($output, $category, $depth, $args) {
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$pad = str_repeat(' ', $depth * 3);
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$cat_name = apply_filters('list_cats', $category->cat_name, $category);
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$output .= "\t<option value=\"".$category->cat_ID."\"";
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if ( $category->cat_ID == $args['selected'] )
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$output .= ' selected="selected"';
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$output .= '>';
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$output .= $pad.$cat_name;
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if ( $args['show_count'] )
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$output .= ' ('. $category->category_count .')';
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if ( $args['show_last_update'] ) {
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$format = 'Y-m-d';
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$output .= ' ' . gmdate($format, $category->last_update_timestamp);
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}
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$output .= "</option>\n";
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return $output;
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}
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}
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class WP_Ajax_Response {
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var $responses = array();
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function WP_Ajax_Response( $args = '' ) {
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if ( !empty($args) )
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$this->add($args);
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}
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// a WP_Error object can be passed in 'id' or 'data'
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function add( $args = '' ) {
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if ( is_array($args) )
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$r = &$args;
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else
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parse_str($args, $r);
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$defaults = array('what' => 'object', 'action' => false, 'id' => '0', 'old_id' => false,
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'data' => '', 'supplemental' => array());
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$r = array_merge($defaults, $r);
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extract($r);
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if ( is_wp_error($id) ) {
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$data = $id;
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$id = 0;
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}
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$response = '';
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if ( is_wp_error($data) )
|
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foreach ( $data->get_error_codes() as $code )
|
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$response .= "<wp_error code='$code'><![CDATA[" . $data->get_error_message($code) . "]]></wp_error>";
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else
|
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$response = "<response_data><![CDATA[$data]]></response_data>";
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|
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$s = '';
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if ( (array) $supplemental )
|
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foreach ( $supplemental as $k => $v )
|
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$s .= "<$k><![CDATA[$v]]></$k>";
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|
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if ( false === $action )
|
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$action = $_POST['action'];
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|
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$x = '';
|
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$x .= "<response action='$action_$id'>"; // The action attribute in the xml output is formatted like a nonce action
|
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$x .= "<$what id='$id'" . ( false !== $old_id ? "old_id='$old_id'>" : '>' );
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$x .= $response;
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$x .= $s;
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$x .= "</$what>";
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$x .= "</response>";
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$this->responses[] = $x;
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return $x;
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}
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|
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function send() {
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header('Content-type: text/xml');
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echo "<?xml version='1.0' standalone='yes'?><wp_ajax>";
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foreach ( $this->responses as $response )
|
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echo $response;
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echo '</wp_ajax>';
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die();
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}
|
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}
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?>
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