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|
<?php
class WP {
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');
var $private_query_vars = array('offset', 'posts_per_page', 'posts_per_archive_page', 'what_to_show', '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');
var $extra_query_vars = array();
var $query_vars;
var $query_string;
var $request;
var $matched_rule;
var $matched_query;
var $did_permalink = false;
function add_query_var($qv) {
$this->public_query_vars[] = $qv;
}
function set_query_var($key, $value) {
$this->query_vars[$key] = $value;
}
function parse_request($extra_query_vars = '') {
global $wp_rewrite;
$this->query_vars = array();
if ( is_array($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'];
$home_path = parse_url(get_option('home'));
if ( isset($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, '', rawurldecode($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);
$self = str_replace($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 = $request;
foreach ($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)) {
// Got a match.
$this->matched_rule = $match;
// Trim the query of everything up to the '?'.
$query = preg_replace("!^.+\?!", '', $query);
// Substitute the substring matches into the query.
eval("\$query = \"$query\";");
$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', $this->public_query_vars);
for ($i=0; $i<count($this->public_query_vars); $i += 1) {
$wpvar = $this->public_query_vars[$i];
if (isset($this->extra_query_vars[$wpvar]))
$this->query_vars[$wpvar] = $this->extra_query_vars[$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($perma_query_vars[$wpvar]))
$this->query_vars[$wpvar] = $perma_query_vars[$wpvar];
if ( !empty( $this->query_vars[$wpvar] ) )
$this->query_vars[$wpvar] = (string) $this->query_vars[$wpvar];
}
foreach ($this->private_query_vars as $var) {
if (isset($this->extra_query_vars[$var]))
$this->query_vars[$var] = $this->extra_query_vars[$var];
elseif (isset($GLOBALS[$var]) && '' != $GLOBALS[$var])
$this->query_vars[$var] = $GLOBALS[$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));
}
function send_headers() {
@header('X-Pingback: '. get_bloginfo('pingback_url'));
if ( is_user_logged_in() )
nocache_headers();
if ( !empty($this->query_vars['error']) && '404' == $this->query_vars['error'] ) {
status_header( 404 );
if ( !is_user_logged_in() )
nocache_headers();
@header('Content-Type: ' . get_option('html_type') . '; charset=' . get_option('blog_charset'));
} else if ( empty($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 ( $this->query_vars['withcomments']
|| ( !$this->query_vars['withoutcomments']
&& ( $this->query_vars['p']
|| $this->query_vars['name']
|| $this->query_vars['page_id']
|| $this->query_vars['pagename']
|| $this->query_vars['attachment']
|| $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) . '"';
@header("Last-Modified: $wp_last_modified");
@header("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 = 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 == $wp_etag)) ) {
status_header( 304 );
exit;
}
}
do_action_ref_array('send_headers', array(&$this));
}
function build_query_string() {
$this->query_string = '';
foreach (array_keys($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.
global $wp_filter;
if ( isset($wp_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);
}
}
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;
$GLOBALS['request'] = & $wp_query->request;
if ( is_single() || is_page() ) {
$GLOBALS['more'] = 1;
$GLOBALS['single'] = 1;
}
}
function init() {
wp_get_current_user();
}
function query_posts() {
global $wp_the_query;
$this->build_query_string();
$wp_the_query->query($this->query_vars);
}
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'], '?'))) ) ) {
$wp_query->set_404();
status_header( 404 );
nocache_headers();
} elseif( is_404() != true ) {
status_header( 200 );
}
}
function main($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));
}
function WP() {
// Empty.
}
}
class WP_Error {
var $errors = array();
var $error_data = array();
function WP_Error($code = '', $message = '', $data = '') {
if ( empty($code) )
return;
$this->errors[$code][] = $message;
if ( ! empty($data) )
$this->error_data[$code] = $data;
}
function get_error_codes() {
if ( empty($this->errors) )
return array();
return array_keys($this->errors);
}
function get_error_code() {
$codes = $this->get_error_codes();
if ( empty($codes) )
return '';
return $codes[0];
}
function get_error_messages($code = '') {
// Return all messages if no code specified.
if ( empty($code) ) {
$all_messages = array();
foreach ( $this->errors as $code => $messages )
$all_messages = array_merge($all_messages, $messages);
return $all_messages;
}
if ( isset($this->errors[$code]) )
return $this->errors[$code];
else
return array();
}
function get_error_message($code = '') {
if ( empty($code) )
$code = $this->get_error_code();
$messages = $this->get_error_messages($code);
if ( empty($messages) )
return '';
return $messages[0];
}
function get_error_data($code = '') {
if ( empty($code) )
$code = $this->get_error_code();
if ( isset($this->error_data[$code]) )
return $this->error_data[$code];
return null;
}
function add($code, $message, $data = '') {
$this->errors[$code][] = $message;
if ( ! empty($data) )
$this->error_data[$code] = $data;
}
function add_data($data, $code = '') {
if ( empty($code) )
$code = $this->get_error_code();
$this->error_data[$code] = $data;
}
}
function is_wp_error($thing) {
if ( is_object($thing) && is_a($thing, 'WP_Error') )
return true;
return false;
}
// A class for displaying various tree-like structures. Extend the Walker class to use it, see examples at the bottom
class Walker {
var $tree_type;
var $db_fields;
//abstract callbacks
function start_lvl($output) { return $output; }
function end_lvl($output) { return $output; }
function start_el($output) { return $output; }
function end_el($output) { return $output; }
function walk($elements, $to_depth) {
$args = array_slice(func_get_args(), 2); $parents = array(); $depth = 1; $previous_element = ''; $output = '';
//padding at the end
$last_element->post_parent = 0;
$last_element->post_id = 0;
$elements[] = $last_element;
$id_field = $this->db_fields['id'];
$parent_field = $this->db_fields['parent'];
$flat = ($to_depth == -1) ? true : false;
foreach ( $elements as $element ) {
// If flat, start and end the element and skip the level checks.
if ( $flat) {
// Start the element.
if ( isset($element->$id_field) && $element->$id_field != 0 ) {
$cb_args = array_merge( array($output, $element, $depth - 1), $args);
$output = call_user_func_array(array(&$this, 'start_el'), $cb_args);
}
// End the element.
if ( isset($element->$id_field) && $element->$id_field != 0 ) {
$cb_args = array_merge( array($output, $element, $depth - 1), $args);
$output = call_user_func_array(array(&$this, 'end_el'), $cb_args);
}
continue;
}
// Walk the tree.
if ( !empty($previous_element) && ($element->$parent_field == $previous_element->$id_field) ) {
// Previous element is my parent. Descend a level.
array_unshift($parents, $previous_element);
if ( !$to_depth || ($depth < $to_depth) ) { //only descend if we're below $to_depth
$cb_args = array_merge( array($output, $depth), $args);
$output = call_user_func_array(array(&$this, 'start_lvl'), $cb_args);
} else if ( $to_depth && $depth == $to_depth ) { // If we've reached depth, end the previous element.
$cb_args = array_merge( array($output, $previous_element, $depth), $args);
$output = call_user_func_array(array(&$this, 'end_el'), $cb_args);
}
$depth++; //always do this so when we start the element further down, we know where we are
} else if ( $element->$parent_field == $previous_element->$parent_field) {
// On the same level as previous element.
if ( !$to_depth || ($depth <= $to_depth) ) {
$cb_args = array_merge( array($output, $previous_element, $depth - 1), $args);
$output = call_user_func_array(array(&$this, 'end_el'), $cb_args);
}
} else if ( $depth > 1 ) {
// Ascend one or more levels.
if ( !$to_depth || ($depth <= $to_depth) ) {
$cb_args = array_merge( array($output, $previous_element, $depth - 1), $args);
$output = call_user_func_array(array(&$this, 'end_el'), $cb_args);
}
while ( $parent = array_shift($parents) ) {
$depth--;
if ( !$to_depth || ($depth < $to_depth) ) {
$cb_args = array_merge( array($output, $depth), $args);
$output = call_user_func_array(array(&$this, 'end_lvl'), $cb_args);
$cb_args = array_merge( array($output, $parent, $depth - 1), $args);
$output = call_user_func_array(array(&$this, 'end_el'), $cb_args);
}
if ( $element->$parent_field == $parents[0]->$id_field ) {
break;
}
}
} else if ( !empty($previous_element) ) {
// Close off previous element.
if ( !$to_depth || ($depth <= $to_depth) ) {
$cb_args = array_merge( array($output, $previous_element, $depth - 1), $args);
$output = call_user_func_array(array(&$this, 'end_el'), $cb_args);
}
}
// Start the element.
if ( !$to_depth || ($depth <= $to_depth) ) {
if ( $element->$id_field != 0 ) {
$cb_args = array_merge( array($output, $element, $depth - 1), $args);
$output = call_user_func_array(array(&$this, 'start_el'), $cb_args);
}
}
$previous_element = $element;
}
return $output;
}
}
class Walker_Page extends Walker {
var $tree_type = 'page';
var $db_fields = array ('parent' => 'post_parent', 'id' => 'ID'); //TODO: decouple this
function start_lvl($output, $depth) {
$indent = str_repeat("\t", $depth);
$output .= "\n$indent<ul>\n";
return $output;
}
function end_lvl($output, $depth) {
$indent = str_repeat("\t", $depth);
$output .= "$indent</ul>\n";
return $output;
}
function start_el($output, $page, $depth, $current_page, $args) {
if ( $depth )
$indent = str_repeat("\t", $depth);
extract($args, EXTR_SKIP);
$css_class = 'page_item page-item-'.$page->ID;
$_current_page = get_page( $current_page );
if ( $page->ID == $current_page )
$css_class .= ' current_page_item ';
elseif ( $_current_page && $page->ID == $_current_page->post_parent )
$css_class .= ' current_page_parent';
$output .= $indent . '<li class="' . $css_class . '"><a href="' . get_page_link($page->ID) . '" title="' . attribute_escape(apply_filters('the_title', $page->post_title)) . '">' . apply_filters('the_title', $page->post_title) . '</a>';
if ( !empty($show_date) ) {
if ( 'modified' == $show_date )
$time = $page->post_modified;
else
$time = $page->post_date;
$output .= " " . mysql2date($date_format, $time);
}
return $output;
}
function end_el($output, $page, $depth) {
$output .= "</li>\n";
return $output;
}
}
class Walker_PageDropdown extends Walker {
var $tree_type = 'page';
var $db_fields = array ('parent' => 'post_parent', 'id' => 'ID'); //TODO: decouple this
function start_el($output, $page, $depth, $args) {
$pad = str_repeat(' ', $depth * 3);
$output .= "\t<option value=\"$page->ID\"";
if ( $page->ID == $args['selected'] )
$output .= ' selected="selected"';
$output .= '>';
$title = wp_specialchars($page->post_title);
$output .= "$pad$title";
$output .= "</option>\n";
return $output;
}
}
class Walker_Category extends Walker {
var $tree_type = 'category';
var $db_fields = array ('parent' => 'parent', 'id' => 'term_id'); //TODO: decouple this
function start_lvl($output, $depth, $args) {
if ( 'list' != $args['style'] )
return $output;
$indent = str_repeat("\t", $depth);
$output .= "$indent<ul class='children'>\n";
return $output;
}
function end_lvl($output, $depth, $args) {
if ( 'list' != $args['style'] )
return $output;
$indent = str_repeat("\t", $depth);
$output .= "$indent</ul>\n";
return $output;
}
function start_el($output, $category, $depth, $args) {
extract($args);
$cat_name = attribute_escape( $category->name);
$cat_name = apply_filters( 'list_cats', $cat_name, $category );
$link = '<a href="' . get_category_link( $category->term_id ) . '" ';
if ( $use_desc_for_title == 0 || empty($category->description) )
$link .= 'title="' . sprintf(__( 'View all posts filed under %s' ), $cat_name) . '"';
else
$link .= 'title="' . attribute_escape( apply_filters( 'category_description', $category->description, $category )) . '"';
$link .= '>';
$link .= $cat_name . '</a>';
if ( (! empty($feed_image)) || (! empty($feed)) ) {
$link .= ' ';
if ( empty($feed_image) )
$link .= '(';
$link .= '<a href="' . get_category_rss_link( 0, $category->term_id, $category->slug ) . '"';
if ( empty($feed) )
$alt = ' alt="' . sprintf(__( 'Feed for all posts filed under %s' ), $cat_name ) . '"';
else {
$title = ' title="' . $feed . '"';
$alt = ' alt="' . $feed . '"';
$name = $feed;
$link .= $title;
}
$link .= '>';
if ( empty($feed_image) )
$link .= $name;
else
$link .= "<img src='$feed_image'$alt$title" . ' />';
$link .= '</a>';
if ( empty($feed_image) )
$link .= ')';
}
if ( isset($show_count) && $show_count )
$link .= ' (' . intval($category->count) . ')';
if ( isset($show_date) && $show_date ) {
$link .= ' ' . gmdate('Y-m-d', $category->last_update_timestamp);
}
if ( $current_category )
$_current_category = get_category( $current_category );
if ( 'list' == $args['style'] ) {
$output .= "\t<li";
$class = 'cat-item cat-item-'.$category->term_id;
if ( $current_category && ($category->term_id == $current_category) )
$class .= ' current-cat';
elseif ( $_current_category && ($category->term_id == $_current_category->parent) )
$class .= ' current-cat-parent';
$output .= ' class="'.$class.'"';
$output .= ">$link\n";
} else {
$output .= "\t$link<br />\n";
}
return $output;
}
function end_el($output, $page, $depth, $args) {
if ( 'list' != $args['style'] )
return $output;
$output .= "</li>\n";
return $output;
}
}
class Walker_CategoryDropdown extends Walker {
var $tree_type = 'category';
var $db_fields = array ('parent' => 'parent', 'id' => 'term_id'); //TODO: decouple this
function start_el($output, $category, $depth, $args) {
$pad = str_repeat(' ', $depth * 3);
$cat_name = apply_filters('list_cats', $category->name, $category);
$output .= "\t<option value=\"".$category->term_id."\"";
if ( $category->term_id == $args['selected'] )
$output .= ' selected="selected"';
$output .= '>';
$output .= $pad.$cat_name;
if ( $args['show_count'] )
$output .= ' ('. $category->count .')';
if ( $args['show_last_update'] ) {
$format = 'Y-m-d';
$output .= ' ' . gmdate($format, $category->last_update_timestamp);
}
$output .= "</option>\n";
return $output;
}
}
class WP_Ajax_Response {
var $responses = array();
function WP_Ajax_Response( $args = '' ) {
if ( !empty($args) )
$this->add($args);
}
// a WP_Error object can be passed in 'id' or 'data'
function add( $args = '' ) {
$defaults = array(
'what' => 'object', 'action' => false,
'id' => '0', 'old_id' => false,
'data' => '', 'supplemental' => array()
);
$r = wp_parse_args( $args, $defaults );
extract( $r, EXTR_SKIP );
if ( is_wp_error($id) ) {
$data = $id;
$id = 0;
}
$response = '';
if ( is_wp_error($data) )
foreach ( $data->get_error_codes() as $code )
$response .= "<wp_error code='$code'><![CDATA[" . $data->get_error_message($code) . "]]></wp_error>";
else
$response = "<response_data><![CDATA[$data]]></response_data>";
$s = '';
if ( (array) $supplemental )
foreach ( $supplemental as $k => $v )
$s .= "<$k><![CDATA[$v]]></$k>";
if ( false === $action )
$action = $_POST['action'];
$x = '';
$x .= "<response action='{$action}_$id'>"; // The action attribute in the xml output is formatted like a nonce action
$x .= "<$what id='$id'" . ( false !== $old_id ? "old_id='$old_id'>" : '>' );
$x .= $response;
$x .= $s;
$x .= "</$what>";
$x .= "</response>";
$this->responses[] = $x;
return $x;
}
function send() {
header('Content-Type: text/xml');
echo "<?xml version='1.0' standalone='yes'?><wp_ajax>";
foreach ( $this->responses as $response )
echo $response;
echo '</wp_ajax>';
die();
}
}
?> |
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