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WordPress/wp-includes/functions.php
rboren 0bebcf246f Introducing add_query_arg() and remove_query_arg(). Props: Owen Winkler. 
git-svn-id: http://svn.automattic.com/wordpress/trunk@1823 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2004-10-20 21:28:37 +00:00

2310 lines
71 KiB
PHP
Raw Blame History

<?php
require_once(dirname(__FILE__).'/functions-compat.php');
if (!function_exists('_')) {
function _($string) {
return $string;
}
}
function get_profile($field, $user = false) {
global $wpdb;
if (!$user)
$user = $wpdb->escape($_COOKIE['wordpressuser_' . COOKIEHASH]);
return $wpdb->get_var("SELECT $field FROM $wpdb->users WHERE user_login = '$user'");
}
function mysql2date($dateformatstring, $mysqlstring, $use_b2configmonthsdays = 1) {
global $month, $weekday;
$m = $mysqlstring;
if (empty($m)) {
return false;
}
$i = mktime(substr($m,11,2),substr($m,14,2),substr($m,17,2),substr($m,5,2),substr($m,8,2),substr($m,0,4));
if (!empty($month) && !empty($weekday) && $use_b2configmonthsdays) {
$datemonth = $month[date('m', $i)];
$dateweekday = $weekday[date('w', $i)];
$dateformatstring = ' '.$dateformatstring;
$dateformatstring = preg_replace("/([^\\\])D/", "\\1".backslashit(substr($dateweekday, 0, 3)), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])F/", "\\1".backslashit($datemonth), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])l/", "\\1".backslashit($dateweekday), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])M/", "\\1".backslashit(substr($datemonth, 0, 3)), $dateformatstring);
$dateformatstring = substr($dateformatstring, 1, strlen($dateformatstring)-1);
}
$j = @date($dateformatstring, $i);
if (!$j) {
// for debug purposes
// echo $i." ".$mysqlstring;
}
return $j;
}
function current_time($type, $gmt = 0) {
switch ($type) {
case 'mysql':
if ($gmt) $d = gmdate('Y-m-d H:i:s');
else $d = gmdate('Y-m-d H:i:s', (time() + (get_settings('gmt_offset') * 3600)));
return $d;
break;
case 'timestamp':
if ($gmt) $d = time();
else $d = time() + (get_settings('gmt_offset') * 3600);
return $d;
break;
}
}
function date_i18n($dateformatstring, $unixtimestamp) {
global $month, $weekday;
$i = $unixtimestamp;
if ((!empty($month)) && (!empty($weekday))) {
$datemonth = $month[date('m', $i)];
$dateweekday = $weekday[date('w', $i)];
$dateformatstring = ' '.$dateformatstring;
$dateformatstring = preg_replace("/([^\\\])D/", "\\1".backslashit(substr($dateweekday, 0, 3)), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])F/", "\\1".backslashit($datemonth), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])l/", "\\1".backslashit($dateweekday), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])M/", "\\1".backslashit(substr($datemonth, 0, 3)), $dateformatstring);
$dateformatstring = substr($dateformatstring, 1, strlen($dateformatstring)-1);
}
$j = @date($dateformatstring, $i);
return $j;
}
function get_weekstartend($mysqlstring, $start_of_week) {
$my = substr($mysqlstring,0,4);
$mm = substr($mysqlstring,8,2);
$md = substr($mysqlstring,5,2);
$day = mktime(0,0,0, $md, $mm, $my);
$weekday = date('w',$day);
$i = 86400;
while ($weekday > get_settings('start_of_week')) {
$weekday = date('w',$day);
$day = $day - 86400;
$i = 0;
}
$week['start'] = $day + 86400 - $i;
$week['end'] = $day + 691199;
return $week;
}
function get_lastpostdate($timezone = 'server') {
global $cache_lastpostdate, $pagenow, $wpdb;
$add_seconds_blog = get_settings('gmt_offset') * 3600;
$add_seconds_server = date('Z');
$now = current_time('mysql', 1);
if ( !isset($cache_lastpostdate[$timezone]) ) {
switch(strtolower($timezone)) {
case 'gmt':
$lastpostdate = $wpdb->get_var("SELECT post_date_gmt FROM $wpdb->posts WHERE post_date_gmt <= '$now' AND post_status = 'publish' ORDER BY post_date_gmt DESC LIMIT 1");
break;
case 'blog':
$lastpostdate = $wpdb->get_var("SELECT post_date FROM $wpdb->posts WHERE post_date_gmt <= '$now' AND post_status = 'publish' ORDER BY post_date_gmt DESC LIMIT 1");
break;
case 'server':
$lastpostdate = $wpdb->get_var("SELECT DATE_ADD(post_date_gmt, INTERVAL '$add_seconds_server' SECOND) FROM $wpdb->posts WHERE post_date_gmt <= '$now' AND post_status = 'publish' ORDER BY post_date_gmt DESC LIMIT 1");
break;
}
$cache_lastpostdate[$timezone] = $lastpostdate;
} else {
$lastpostdate = $cache_lastpostdate[$timezone];
}
return $lastpostdate;
}
function get_lastpostmodified($timezone = 'server') {
global $cache_lastpostmodified, $pagenow, $wpdb;
$add_seconds_blog = get_settings('gmt_offset') * 3600;
$add_seconds_server = date('Z');
$now = current_time('mysql', 1);
if ( !isset($cache_lastpostmodified[$timezone]) ) {
switch(strtolower($timezone)) {
case 'gmt':
$lastpostmodified = $wpdb->get_var("SELECT post_modified_gmt FROM $wpdb->posts WHERE post_modified_gmt <= '$now' AND post_status = 'publish' ORDER BY post_modified_gmt DESC LIMIT 1");
break;
case 'blog':
$lastpostmodified = $wpdb->get_var("SELECT post_modified FROM $wpdb->posts WHERE post_modified_gmt <= '$now' AND post_status = 'publish' ORDER BY post_modified_gmt DESC LIMIT 1");
break;
case 'server':
$lastpostmodified = $wpdb->get_var("SELECT DATE_ADD(post_modified_gmt, INTERVAL '$add_seconds_server' SECOND) FROM $wpdb->posts WHERE post_modified_gmt <= '$now' AND post_status = 'publish' ORDER BY post_modified_gmt DESC LIMIT 1");
break;
}
$lastpostdate = get_lastpostdate($timezone);
if ($lastpostdate > $lastpostmodified) {
$lastpostmodified = $lastpostdate;
}
$cache_lastpostmodified[$timezone] = $lastpostmodified;
} else {
$lastpostmodified = $cache_lastpostmodified[$timezone];
}
return $lastpostmodified;
}
function get_lastcommentmodified($timezone = 'server') {
global $tablecomments, $cache_lastcommentmodified, $pagenow, $wpdb;
$add_seconds_blog = get_settings('gmt_offset') * 3600;
$add_seconds_server = date('Z');
$now = current_time('mysql', 1);
if ( !isset($cache_lastcommentmodified[$timezone]) ) {
switch(strtolower($timezone)) {
case 'gmt':
$lastcommentmodified = $wpdb->get_var("SELECT comment_date_gmt FROM $tablecomments WHERE comment_date_gmt <= '$now' ORDER BY comment_date_gmt DESC LIMIT 1");
break;
case 'blog':
$lastcommentmodified = $wpdb->get_var("SELECT comment_date FROM $tablecomments WHERE comment_date_gmt <= '$now' ORDER BY comment_date_gmt DESC LIMIT 1");
break;
case 'server':
$lastcommentmodified = $wpdb->get_var("SELECT DATE_ADD(comment_date_gmt, INTERVAL '$add_seconds_server' SECOND) FROM $tablecomments WHERE comment_date_gmt <= '$now' ORDER BY comment_date_gmt DESC LIMIT 1");
break;
}
$cache_lastcommentmodified[$timezone] = $lastcommentmodified;
} else {
$lastcommentmodified = $cache_lastcommentmodified[$timezone];
}
return $lastcommentmodified;
}
function user_pass_ok($user_login,$user_pass) {
global $cache_userdata;
if ( empty($cache_userdata[$user_login]) ) {
$userdata = get_userdatabylogin($user_login);
} else {
$userdata = $cache_userdata[$user_login];
}
return (md5($user_pass) == $userdata->user_pass);
}
function get_currentuserinfo() { // a bit like get_userdata(), on steroids
global $user_login, $userdata, $user_level, $user_ID, $user_nickname, $user_email, $user_url, $user_pass_md5;
// *** retrieving user's data from cookies and db - no spoofing
if (isset($_COOKIE['wordpressuser_' . COOKIEHASH]))
$user_login = $_COOKIE['wordpressuser_' . COOKIEHASH];
$userdata = get_userdatabylogin($user_login);
$user_level = $userdata->user_level;
$user_ID = $userdata->ID;
$user_nickname = $userdata->user_nickname;
$user_email = $userdata->user_email;
$user_url = $userdata->user_url;
$user_pass_md5 = md5($userdata->user_pass);
}
function get_userdata($userid) {
global $wpdb, $cache_userdata;
$userid = (int) $userid;
if ( empty($cache_userdata[$userid]) ) {
$cache_userdata[$userid] =
$wpdb->get_row("SELECT * FROM $wpdb->users WHERE ID = '$userid'");
}
return $cache_userdata[$userid];
}
function get_userdatabylogin($user_login) {
global $cache_userdata, $wpdb;
if ( !empty($user_login) && empty($cache_userdata["$user_login"]) ) {
$user = $wpdb->get_row("SELECT * FROM $wpdb->users WHERE user_login = '$user_login'");
$cache_userdata["$user_login"] = $user;
} else {
$user = $cache_userdata["$user_login"];
}
return $user;
}
function get_userid($user_login) {
global $cache_userdata, $wpdb;
if ( !empty($user_login) && empty($cache_userdata["$user_login"]) ) {
$user_id = $wpdb->get_var("SELECT ID FROM $wpdb->users WHERE user_login = '$user_login'");
$cache_userdata["$user_login"] = $user_id;
} else {
$user_id = $cache_userdata["$user_login"];
}
return $user_id;
}
function get_usernumposts($userid) {
global $wpdb;
return $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->posts WHERE post_author = '$userid'");
}
// examine a url (supposedly from this blog) and try to
// determine the post ID it represents.
function url_to_postid($url = '') {
global $wpdb;
$siteurl = get_settings('home');
// Take a link like 'http://example.com/blog/something'
// and extract just the '/something':
$uri = preg_replace("#$siteurl#i", '', $url);
// on failure, preg_replace just returns the subject string
// so if $uri and $siteurl are the same, they didn't match:
if ($uri == $siteurl)
return 0;
// First, check to see if there is a 'p=N' to match against:
preg_match('#[?&]p=(\d+)#', $uri, $values);
$p = intval($values[1]);
if ($p) return $p;
// Match $uri against our permalink structure
$permalink_structure = get_settings('permalink_structure');
// Matt's tokenizer code
$rewritecode = array(
'%year%',
'%monthnum%',
'%day%',
'%hour%',
'%minute%',
'%second%',
'%postname%',
'%post_id%'
);
$rewritereplace = array(
'([0-9]{4})?',
'([0-9]{1,2})?',
'([0-9]{1,2})?',
'([0-9]{1,2})?',
'([0-9]{1,2})?',
'([0-9]{1,2})?',
'([_0-9a-z-]+)?',
'([0-9]+)?'
);
// Turn the structure into a regular expression
$matchre = str_replace('/', '/?', $permalink_structure);
$matchre = str_replace($rewritecode, $rewritereplace, $matchre);
// Extract the key values from the uri:
preg_match("#$matchre#",$uri,$values);
// Extract the token names from the structure:
preg_match_all("#%(.+?)%#", $permalink_structure, $tokens);
for($i = 0; $i < count($tokens[1]); $i++) {
$name = $tokens[1][$i];
$value = $values[$i+1];
// Create a variable named $year, $monthnum, $day, $postname, or $post_id:
$$name = $value;
}
// If using %post_id%, we're done:
if (intval($post_id)) return intval($post_id);
// Otherwise, build a WHERE clause, making the values safe along the way:
if ($year) $where .= " AND YEAR(post_date) = '" . intval($year) . "'";
if ($monthnum) $where .= " AND MONTH(post_date) = '" . intval($monthnum) . "'";
if ($day) $where .= " AND DAYOFMONTH(post_date) = '" . intval($day) . "'";
if ($hour) $where .= " AND HOUR(post_date) = '" . intval($hour) . "'";
if ($minute) $where .= " AND MINUTE(post_date) = '" . intval($minute) . "'";
if ($second) $where .= " AND SECOND(post_date) = '" . intval($second) . "'";
if ($postname) $where .= " AND post_name = '" . $wpdb->escape($postname) . "' ";
// We got no indication, so we return false:
if (!strlen($where)) {
return false;
}
// Run the query to get the post ID:
$id = intval($wpdb->get_var("SELECT ID FROM $wpdb->posts WHERE 1 = 1 " . $where));
return $id;
}
/* Options functions */
function get_settings($setting) {
global $wpdb, $cache_settings, $cache_nonexistantoptions;
if ( strstr($_SERVER['REQUEST_URI'], 'wp-admin/install.php') )
return false;
if ( empty($cache_settings) )
$cache_settings = get_alloptions();
if ( empty($cache_nonexistantoptions) )
$cache_nonexistantoptions = array();
if ('home' == $setting && '' == $cache_settings->home)
return $cache_settings->siteurl;
if ( isset($cache_settings->$setting) ) :
return $cache_settings->$setting;
else :
// for these cases when we're asking for an unknown option
if ( isset($cache_nonexistantoptions[$setting]) )
return false;
$option = $wpdb->get_var("SELECT option_value FROM $wpdb->options WHERE option_name = '$setting'");
if (!$option) :
$cache_nonexistantoptions[$setting] = true;
return false;
endif;
if (@ $kellogs = unserialize($option) ) return $kellogs;
else return $option;
endif;
}
function get_option($option) {
return get_settings($option);
}
function form_option($option) {
echo htmlspecialchars( get_option($option) );
}
function get_alloptions() {
global $wpdb, $wp_queries;
$wpdb->hide_errors();
if (!$options = $wpdb->get_results("SELECT option_name, option_value FROM $wpdb->options WHERE autoload = 'yes'")) {
include_once(ABSPATH . '/wp-admin/upgrade-functions.php');
make_db_current_silent();
$options = $wpdb->get_results("SELECT option_name, option_value FROM $wpdb->options");
}
$wpdb->show_errors();
foreach ($options as $option) {
// "When trying to design a foolproof system,
// never underestimate the ingenuity of the fools :)" -- Dougal
if ('siteurl' == $option->option_name) $option->option_value = preg_replace('|/+$|', '', $option->option_value);
if ('home' == $option->option_name) $option->option_value = preg_replace('|/+$|', '', $option->option_value);
if ('category_base' == $option->option_name) $option->option_value = preg_replace('|/+$|', '', $option->option_value);
if (@ $value = unserialize($option->option_value) )
$all_options->{$option->option_name} = $value;
else $value = $option->option_value;
$all_options->{$option->option_name} = $value;
}
return $all_options;
}
function update_option($option_name, $newvalue) {
global $wpdb, $cache_settings;
if ( is_array($newvalue) || is_object($value) )
$newvalue = serialize($newvalue);
$newvalue = trim($newvalue); // I can't think of any situation we wouldn't want to trim
// If the new and old values are the same, no need to update.
if ($newvalue == get_settings($option_name)) {
return true;
}
$newvalue = $wpdb->escape($newvalue);
$wpdb->query("UPDATE $wpdb->options SET option_value = '$newvalue' WHERE option_name = '$option_name'");
$cache_settings = get_alloptions(); // Re cache settings
return true;
}
// thx Alex Stapleton, http://alex.vort-x.net/blog/
function add_option($name, $value = '', $description = '') {
global $wpdb;
if ( is_array($value) || is_object($value) )
$value = serialize($value);
if( !$wpdb->get_var("SELECT option_name FROM $wpdb->options WHERE option_name = '$name'") ) {
$name = $wpdb->escape($name);
$value = $wpdb->escape($value);
$description = $wpdb->escape($description);
$wpdb->query("INSERT INTO $wpdb->options (option_name, option_value, option_description) VALUES ('$name', '$value', '$description')");
if($wpdb->insert_id) {
global $cache_settings;
$cache_settings->{$name} = $value;
}
}
return;
}
function delete_option($name) {
global $wpdb;
// Get the ID, if no ID then return
$option_id = $wpdb->get_var("SELECT option_id FROM $wpdb->options WHERE option_name = '$name'");
if (!$option_id) return false;
$wpdb->query("DELETE FROM $wpdb->options WHERE option_name = '$name'");
return true;
}
function add_post_meta($post_id, $key, $value, $unique = false) {
global $wpdb;
if ($unique) {
if( $wpdb->get_var("SELECT meta_key FROM $wpdb->postmeta WHERE meta_key
= '$key' AND post_id = '$post_id'") ) {
return false;
}
}
$wpdb->query("INSERT INTO $wpdb->postmeta
(post_id,meta_key,meta_value)
VALUES ('$post_id','$key','$value')
");
return true;
}
function delete_post_meta($post_id, $key, $value = '') {
global $wpdb;
if (empty($value)) {
$meta_id = $wpdb->get_var("SELECT meta_id FROM $wpdb->postmeta WHERE
post_id = '$post_id' AND meta_key = '$key'");
} else {
$meta_id = $wpdb->get_var("SELECT meta_id FROM $wpdb->postmeta WHERE
post_id = '$post_id' AND meta_key = '$key' AND meta_value = '$value'");
}
if (!$meta_id) return false;
if (empty($value)) {
$wpdb->query("DELETE FROM $wpdb->postmeta WHERE post_id = '$post_id'
AND meta_key = '$key'");
} else {
$wpdb->query("DELETE FROM $wpdb->postmeta WHERE post_id = '$post_id'
AND meta_key = '$key' AND meta_value = '$value'");
}
return true;
}
function get_post_meta($post_id, $key, $single = false) {
global $wpdb, $post_meta_cache;
if (isset($post_meta_cache[$post_id][$key])) {
if ($single) {
return $post_meta_cache[$post_id][$key][0];
} else {
return $post_meta_cache[$post_id][$key];
}
}
$metalist = $wpdb->get_results("SELECT meta_value FROM $wpdb->postmeta WHERE post_id = '$post_id' AND meta_key = '$key'", ARRAY_N);
$values = array();
if ($metalist) {
foreach ($metalist as $metarow) {
$values[] = $metarow[0];
}
}
if ($single) {
if (count($values)) {
return $values[0];
} else {
return '';
}
} else {
return $values;
}
}
function update_post_meta($post_id, $key, $value, $prev_value = '') {
global $wpdb, $post_meta_cache;
if(! $wpdb->get_var("SELECT meta_key FROM $wpdb->postmeta WHERE meta_key
= '$key' AND post_id = '$post_id'") ) {
return false;
}
if (empty($prev_value)) {
$wpdb->query("UPDATE $wpdb->postmeta SET meta_value = '$value' WHERE
meta_key = '$key' AND post_id = '$post_id'");
} else {
$wpdb->query("UPDATE $wpdb->postmeta SET meta_value = '$value' WHERE
meta_key = '$key' AND post_id = '$post_id' AND meta_value = '$prev_value'");
}
return true;
}
function get_postdata($postid) {
global $post, $wpdb;
$post = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID = '$postid'");
$postdata = array (
'ID' => $post->ID,
'Author_ID' => $post->post_author,
'Date' => $post->post_date,
'Content' => $post->post_content,
'Excerpt' => $post->post_excerpt,
'Title' => $post->post_title,
'Category' => $post->post_category,
'post_status' => $post->post_status,
'comment_status' => $post->comment_status,
'ping_status' => $post->ping_status,
'post_password' => $post->post_password,
'to_ping' => $post->to_ping,
'pinged' => $post->pinged,
'post_name' => $post->post_name
);
return $postdata;
}
function get_commentdata($comment_ID,$no_cache=0,$include_unapproved=false) { // less flexible, but saves DB queries
global $postc,$id,$commentdata, $wpdb;
if ($no_cache) {
$query = "SELECT * FROM $wpdb->comments WHERE comment_ID = '$comment_ID'";
if (false == $include_unapproved) {
$query .= " AND comment_approved = '1'";
}
$myrow = $wpdb->get_row($query, ARRAY_A);
} else {
$myrow['comment_ID']=$postc->comment_ID;
$myrow['comment_post_ID']=$postc->comment_post_ID;
$myrow['comment_author']=$postc->comment_author;
$myrow['comment_author_email']=$postc->comment_author_email;
$myrow['comment_author_url']=$postc->comment_author_url;
$myrow['comment_author_IP']=$postc->comment_author_IP;
$myrow['comment_date']=$postc->comment_date;
$myrow['comment_content']=$postc->comment_content;
$myrow['comment_karma']=$postc->comment_karma;
$myrow['comment_approved']=$postc->comment_approved;
if (strstr($myrow['comment_content'], '<trackback />')) {
$myrow['comment_type'] = 'trackback';
} elseif (strstr($myrow['comment_content'], '<pingback />')) {
$myrow['comment_type'] = 'pingback';
} else {
$myrow['comment_type'] = 'comment';
}
}
return $myrow;
}
function get_catname($cat_ID) {
global $cache_catnames, $wpdb;
if ( !$cache_catnames ) {
$results = $wpdb->get_results("SELECT * FROM $wpdb->categories") or die('Oops, couldn\'t query the db for categories.');
foreach ($results as $post) {
$cache_catnames[$post->cat_ID] = $post->cat_name;
}
}
$cat_name = $cache_catnames[$cat_ID];
return $cat_name;
}
function gzip_compression() {
if ( strstr($_SERVER['PHP_SELF'], 'wp-admin') ) return false;
if ( !get_settings('gzipcompression') ) return false;
if( extension_loaded('zlib') ) {
ob_start('ob_gzhandler');
}
}
// functions to count the page generation time (from phpBB2)
// ( or just any time between timer_start() and timer_stop() )
function timer_stop($display = 0, $precision = 3) { //if called like timer_stop(1), will echo $timetotal
global $timestart, $timeend;
$mtime = microtime();
$mtime = explode(' ',$mtime);
$mtime = $mtime[1] + $mtime[0];
$timeend = $mtime;
$timetotal = $timeend-$timestart;
if ($display)
echo number_format($timetotal,$precision);
return $timetotal;
}
function weblog_ping($server = '', $path = '') {
global $wp_version;
include_once (ABSPATH . WPINC . '/class-IXR.php');
// using a timeout of 3 seconds should be enough to cover slow servers
$client = new IXR_Client($server, ((!strlen(trim($path)) || ('/' == $path)) ? false : $path));
$client->timeout = 3;
$client->useragent .= ' -- WordPress/'.$wp_version;
// when set to true, this outputs debug messages by itself
$client->debug = false;
$client->query('weblogUpdates.ping', get_settings('blogname'), get_settings('home'));
}
function generic_ping($post_id = 0) {
$services = get_settings('ping_sites');
$services = preg_replace("|(\s)+|", '$1', $services); // Kill dupe lines
$services = trim($services);
if ('' != $services) {
$services = explode("\n", $services);
foreach ($services as $service) {
weblog_ping($service);
}
}
return $post_id;
}
add_action('publish_post', 'generic_ping');
// Send a Trackback
function trackback($trackback_url, $title, $excerpt, $ID) {
global $wpdb;
$title = urlencode($title);
$excerpt = urlencode($excerpt);
$blog_name = urlencode(get_settings('blogname'));
$tb_url = $trackback_url;
$url = urlencode(get_permalink($ID));
$query_string = "title=$title&url=$url&blog_name=$blog_name&excerpt=$excerpt";
$trackback_url = parse_url($trackback_url);
$http_request = 'POST ' . $trackback_url['path'] . ($trackback_url['query'] ? '?'.$trackback_url['query'] : '') . " HTTP/1.0\r\n";
$http_request .= 'Host: '.$trackback_url['host']."\r\n";
$http_request .= 'Content-Type: application/x-www-form-urlencoded; charset='.get_settings('blog_charset')."\r\n";
$http_request .= 'Content-Length: '.strlen($query_string)."\r\n";
$http_request .= "\r\n";
$http_request .= $query_string;
if ( '' == $trackback_url['port'] )
$trackback_url['port'] = 80;
$fs = @fsockopen($trackback_url['host'], $trackback_url['port'], $errno, $errstr, 4);
@fputs($fs, $http_request);
/*
$debug_file = 'trackback.log';
$fp = fopen($debug_file, 'a');
fwrite($fp, "\n*****\nRequest:\n\n$http_request\n\nResponse:\n\n");
while(!@feof($fs)) {
fwrite($fp, @fgets($fs, 4096));
}
fwrite($fp, "\n\n");
fclose($fp);
*/
@fclose($fs);
$wpdb->query("UPDATE $wpdb->posts SET pinged = CONCAT(pinged, '\n', '$tb_url') WHERE ID = '$ID'");
$wpdb->query("UPDATE $wpdb->posts SET to_ping = REPLACE(to_ping, '$tb_url', '') WHERE ID = '$ID'");
return $result;
}
function make_url_footnote($content) {
preg_match_all('/<a(.+?)href=\"(.+?)\"(.*?)>(.+?)<\/a>/', $content, $matches);
$j = 0;
for ($i=0; $i<count($matches[0]); $i++) {
$links_summary = (!$j) ? "\n" : $links_summary;
$j++;
$link_match = $matches[0][$i];
$link_number = '['.($i+1).']';
$link_url = $matches[2][$i];
$link_text = $matches[4][$i];
$content = str_replace($link_match, $link_text.' '.$link_number, $content);
$link_url = (strtolower(substr($link_url,0,7)) != 'http://') ? get_settings('home') . $link_url : $link_url;
$links_summary .= "\n".$link_number.' '.$link_url;
}
$content = strip_tags($content);
$content .= $links_summary;
return $content;
}
function xmlrpc_getposttitle($content) {
global $post_default_title;
if (preg_match('/<title>(.+?)<\/title>/is', $content, $matchtitle)) {
$post_title = $matchtitle[0];
$post_title = preg_replace('/<title>/si', '', $post_title);
$post_title = preg_replace('/<\/title>/si', '', $post_title);
} else {
$post_title = $post_default_title;
}
return $post_title;
}
function xmlrpc_getpostcategory($content) {
global $post_default_category;
if (preg_match('/<category>(.+?)<\/category>/is', $content, $matchcat)) {
$post_category = trim($matchcat[1], ',');
$post_category = explode(',', $post_category);
} else {
$post_category = $post_default_category;
}
return $post_category;
}
function xmlrpc_removepostdata($content) {
$content = preg_replace('/<title>(.+?)<\/title>/si', '', $content);
$content = preg_replace('/<category>(.+?)<\/category>/si', '', $content);
$content = trim($content);
return $content;
}
function debug_fopen($filename, $mode) {
global $debug;
if ($debug == 1) {
$fp = fopen($filename, $mode);
return $fp;
} else {
return false;
}
}
function debug_fwrite($fp, $string) {
global $debug;
if ($debug == 1) {
fwrite($fp, $string);
}
}
function debug_fclose($fp) {
global $debug;
if ($debug == 1) {
fclose($fp);
}
}
function do_enclose( $content, $post_ID ) {
global $wp_version, $wpdb;
include_once (ABSPATH . WPINC . '/class-IXR.php');
// original code by Mort (http://mort.mine.nu:8080)
$log = debug_fopen(ABSPATH . '/pingback.log', 'a');
$post_links = array();
debug_fwrite($log, 'BEGIN '.date('YmdHis', time())."\n");
$pung = get_pung($post_ID);
// Variables
$ltrs = '\w';
$gunk = '/#~:.?+=&%@!\-';
$punc = '.:?\-';
$any = $ltrs . $gunk . $punc;
// Step 1
// Parsing the post, external links (if any) are stored in the $post_links array
// This regexp comes straight from phpfreaks.com
// http://www.phpfreaks.com/quickcode/Extract_All_URLs_on_a_Page/15.php
preg_match_all("{\b http : [$any] +? (?= [$punc] * [^$any] | $)}x", $content, $post_links_temp);
// Debug
debug_fwrite($log, 'Post contents:');
debug_fwrite($log, $content."\n");
// Step 2.
// Walking thru the links array
// first we get rid of links pointing to sites, not to specific files
// Example:
// http://dummy-weblog.org
// http://dummy-weblog.org/
// http://dummy-weblog.org/post.php
// We don't wanna ping first and second types, even if they have a valid <link/>
foreach($post_links_temp[0] as $link_test) :
if ( !in_array($link_test, $pung) ) : // If we haven't pung it already
$test = parse_url($link_test);
if (isset($test['query']))
$post_links[] = $link_test;
elseif(($test['path'] != '/') && ($test['path'] != ''))
$post_links[] = $link_test;
endif;
endforeach;
foreach ($post_links as $url){
if( $url != '' && in_array($url, $pung) == false ) {
set_time_limit( 60 );
$file = str_replace( "http://", "", $url );
$host = substr( $file, 0, strpos( $file, "/" ) );
$file = substr( $file, strpos( $file, "/" ) );
$headers = "HEAD $file HTTP/1.1\r\nHOST: $host\r\n\r\n";
$port = 80;
$timeout = 3;
$fp = fsockopen($host, $port, $err_num, $err_msg, $timeout);
if( $fp ) {
fputs($fp, $headers );
$response = '';
while ( !feof($fp) && strpos( $response, "\r\n\r\n" ) == false )
$response .= fgets($fp, 2048);
fclose( $fp );
} else {
$response = '';
}
if( $response != '' ) {
$len = substr( $response, strpos( $response, "Content-Length:" ) + 16 );
$len = substr( $len, 0, strpos( $len, "\n" ) );
$type = substr( $response, strpos( $response, "Content-Type:" ) + 14 );
$type = substr( $type, 0, strpos( $type, "\n" ) + 1 );
$allowed_types = array( "video", "audio", "image" );
if( in_array( substr( $type, 0, strpos( $type, "/" ) ), $allowed_types ) ) {
$meta_value = "$url\n$len\n$type\n";
$query = "INSERT INTO `".$wpdb->postmeta."` ( `meta_id` , `post_id` , `meta_key` , `meta_value` )
VALUES ( NULL, '$post_ID', 'enclosure' , '".$meta_value."')";
$wpdb->query( $query );
add_ping( $post_ID, $url );
}
}
}
}
}
function pingback($content, $post_ID) {
global $wp_version, $wpdb;
include_once (ABSPATH . WPINC . '/class-IXR.php');
// original code by Mort (http://mort.mine.nu:8080)
$log = debug_fopen(ABSPATH . '/pingback.log', 'a');
$post_links = array();
debug_fwrite($log, 'BEGIN '.date('YmdHis', time())."\n");
$pung = get_pung($post_ID);
// Variables
$ltrs = '\w';
$gunk = '/#~:.?+=&%@!\-';
$punc = '.:?\-';
$any = $ltrs . $gunk . $punc;
// Step 1
// Parsing the post, external links (if any) are stored in the $post_links array
// This regexp comes straight from phpfreaks.com
// http://www.phpfreaks.com/quickcode/Extract_All_URLs_on_a_Page/15.php
preg_match_all("{\b http : [$any] +? (?= [$punc] * [^$any] | $)}x", $content, $post_links_temp);
// Debug
debug_fwrite($log, 'Post contents:');
debug_fwrite($log, $content."\n");
// Step 2.
// Walking thru the links array
// first we get rid of links pointing to sites, not to specific files
// Example:
// http://dummy-weblog.org
// http://dummy-weblog.org/
// http://dummy-weblog.org/post.php
// We don't wanna ping first and second types, even if they have a valid <link/>
foreach($post_links_temp[0] as $link_test) :
if ( !in_array($link_test, $pung) ) : // If we haven't pung it already
$test = parse_url($link_test);
if (isset($test['query']))
$post_links[] = $link_test;
elseif(($test['path'] != '/') && ($test['path'] != ''))
$post_links[] = $link_test;
endif;
endforeach;
foreach ($post_links as $pagelinkedto){
debug_fwrite($log, "Processing -- $pagelinkedto\n");
$pingback_server_url = discover_pingback_server_uri($pagelinkedto, 2048);
if ($pingback_server_url) {
set_time_limit( 60 );
// Now, the RPC call
debug_fwrite($log, "Page Linked To: $pagelinkedto \n");
debug_fwrite($log, 'Page Linked From: ');
$pagelinkedfrom = get_permalink($post_ID);
debug_fwrite($log, $pagelinkedfrom."\n");
// using a timeout of 3 seconds should be enough to cover slow servers
$client = new IXR_Client($pingback_server_url);
$client->timeout = 3;
$client->useragent .= ' -- WordPress/' . $wp_version;
// when set to true, this outputs debug messages by itself
$client->debug = false;
$client->query('pingback.ping', array($pagelinkedfrom, $pagelinkedto));
if ( !$client->query('pingback.ping', array($pagelinkedfrom, $pagelinkedto) ) )
debug_fwrite($log, "Error.\n Fault code: ".$client->getErrorCode()." : ".$client->getErrorMessage()."\n");
else
add_ping( $post_ID, $pagelinkedto );
}
}
debug_fwrite($log, "\nEND: ".time()."\n****************************\n");
debug_fclose($log);
}
function discover_pingback_server_uri($url, $timeout_bytes = 2048) {
$byte_count = 0;
$contents = '';
$headers = '';
$pingback_str_dquote = 'rel="pingback"';
$pingback_str_squote = 'rel=\'pingback\'';
$x_pingback_str = 'x-pingback: ';
$pingback_href_original_pos = 27;
extract(parse_url($url));
if (!isset($host)) {
// Not an URL. This should never happen.
return false;
}
$path = (!isset($path)) ? '/' : $path;
$path .= (isset($query)) ? '?'.$query : '';
$port = (isset($port)) ? $port : 80;
// Try to connect to the server at $host
$fp = fsockopen($host, $port, $errno, $errstr, 3);
if (!$fp) {
// Couldn't open a connection to $host;
return false;
}
// Send the GET request
$request = "GET $path HTTP/1.1\r\nHost: $host\r\nUser-Agent: WordPress/$wp_version PHP/" . phpversion() . "\r\n\r\n";
ob_end_flush();
fputs($fp, $request);
// Let's check for an X-Pingback header first
while (!feof($fp)) {
$line = fgets($fp, 512);
if (trim($line) == '') {
break;
}
$headers .= trim($line)."\n";
$x_pingback_header_offset = strpos(strtolower($headers), $x_pingback_str);
if ($x_pingback_header_offset) {
// We got it!
preg_match('#x-pingback: (.+)#is', $headers, $matches);
$pingback_server_url = trim($matches[1]);
return $pingback_server_url;
}
if(strpos(strtolower($headers), 'content-type: ')) {
preg_match('#content-type: (.+)#is', $headers, $matches);
$content_type = trim($matches[1]);
}
}
if (preg_match('#(image|audio|video|model)/#is', $content_type)) {
// Not an (x)html, sgml, or xml page, no use going further
return false;
}
while (!feof($fp)) {
$line = fgets($fp, 1024);
$contents .= trim($line);
$pingback_link_offset_dquote = strpos($contents, $pingback_str_dquote);
$pingback_link_offset_squote = strpos($contents, $pingback_str_squote);
if ($pingback_link_offset_dquote || $pingback_link_offset_squote) {
$quote = ($pingback_link_offset_dquote) ? '"' : '\'';
$pingback_link_offset = ($quote=='"') ? $pingback_link_offset_dquote : $pingback_link_offset_squote;
$pingback_href_pos = @strpos($contents, 'href=', $pingback_link_offset);
$pingback_href_start = $pingback_href_pos+6;
$pingback_href_end = @strpos($contents, $quote, $pingback_href_start);
$pingback_server_url_len = $pingback_href_end - $pingback_href_start;
$pingback_server_url = substr($contents, $pingback_href_start, $pingback_server_url_len);
// We may find rel="pingback" but an incomplete pingback URI
if ($pingback_server_url_len > 0) {
// We got it!
return $pingback_server_url;
}
}
$byte_count += strlen($line);
if ($byte_count > $timeout_bytes) {
// It's no use going further, there probably isn't any pingback
// server to find in this file. (Prevents loading large files.)
return false;
}
}
// We didn't find anything.
return false;
}
/* wp_set_comment_status:
part of otaku42's comment moderation hack
changes the status of a comment according to $comment_status.
allowed values:
hold : set comment_approve field to 0
approve: set comment_approve field to 1
delete : remove comment out of database
returns true if change could be applied
returns false on database error or invalid value for $comment_status
*/
function wp_set_comment_status($comment_id, $comment_status) {
global $wpdb;
switch($comment_status) {
case 'hold':
$query = "UPDATE $wpdb->comments SET comment_approved='0' WHERE comment_ID='$comment_id' LIMIT 1";
break;
case 'approve':
$query = "UPDATE $wpdb->comments SET comment_approved='1' WHERE comment_ID='$comment_id' LIMIT 1";
break;
case 'delete':
$query = "DELETE FROM $wpdb->comments WHERE comment_ID='$comment_id' LIMIT 1";
break;
default:
return false;
}
if ($wpdb->query($query)) {
do_action('wp_set_comment_status', $comment_id);
return true;
} else {
return false;
}
}
/* wp_get_comment_status
part of otaku42's comment moderation hack
gets the current status of a comment
returned values:
"approved" : comment has been approved
"unapproved": comment has not been approved
"deleted ": comment not found in database
a (boolean) false signals an error
*/
function wp_get_comment_status($comment_id) {
global $wpdb;
$result = $wpdb->get_var("SELECT comment_approved FROM $wpdb->comments WHERE comment_ID='$comment_id' LIMIT 1");
if ($result == NULL) {
return "deleted";
} else if ($result == "1") {
return "approved";
} else if ($result == "0") {
return "unapproved";
} else {
return false;
}
}
function wp_notify_postauthor($comment_id, $comment_type='comment') {
global $wpdb;
global $querystring_start, $querystring_equal, $querystring_separator;
$comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID='$comment_id' LIMIT 1");
$post = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID='$comment->comment_post_ID' LIMIT 1");
$user = $wpdb->get_row("SELECT * FROM $wpdb->users WHERE ID='$post->post_author' LIMIT 1");
if ('' == $user->user_email) return false; // If there's no email to send the comment to
$comment_author_domain = gethostbyaddr($comment->comment_author_IP);
$blogname = get_settings('blogname');
if ('comment' == $comment_type) {
$notify_message = "New comment on your post #$comment->comment_post_ID \"".$post->post_title."\"\r\n\r\n";
$notify_message .= "Author : $comment->comment_author (IP: $comment->comment_author_IP , $comment_author_domain)\r\n";
$notify_message .= "E-mail : $comment->comment_author_email\r\n";
$notify_message .= "URI : $comment->comment_author_url\r\n";
$notify_message .= "Whois : http://ws.arin.net/cgi-bin/whois.pl?queryinput=$comment->comment_author_IP\r\n";
$notify_message .= "Comment:\r\n".$comment->comment_content."\r\n\r\n";
$notify_message .= "You can see all comments on this post here: \r\n";
$subject = '[' . $blogname . '] Comment: "' .$post->post_title.'"';
} elseif ('trackback' == $comment_type) {
$notify_message = "New trackback on your post #$comment_post_ID \"".$post->post_title."\"\r\n\r\n";
$notify_message .= "Website: $comment->comment_author (IP: $comment->comment_author_IP , $comment_author_domain)\r\n";
$notify_message .= "URI : $comment->comment_author_url\r\n";
$notify_message .= "Excerpt: \n".$comment->comment_content."\r\n\r\n";
$notify_message .= "You can see all trackbacks on this post here: \r\n";
$subject = '[' . $blogname . '] Trackback: "' .$post->post_title.'"';
} elseif ('pingback' == $comment_type) {
$notify_message = "New pingback on your post #$comment_post_ID \"".$post->post_title."\"\r\n\r\n";
$notify_message .= "Website: $comment->comment_author\r\n";
$notify_message .= "URI : $comment->comment_author_url\r\n";
$notify_message .= "Excerpt: \n[...] $original_context [...]\r\n\r\n";
$notify_message .= "You can see all pingbacks on this post here: \r\n";
$subject = '[' . $blogname . '] Pingback: "' .$post->post_title.'"';
}
$notify_message .= get_permalink($comment->comment_post_ID) . '#comments';
if ('' == $comment->comment_author_email || '' == $comment->comment_author) {
$from = "From: \"$blogname\" <wordpress@" . $_SERVER['SERVER_NAME'] . '>';
} else {
$from = 'From: "' . $comment->comment_author . "\" <$comment->comment_author_email>";
}
$message_headers = "MIME-Version: 1.0\r\n"
. "$from\r\n"
. "Content-Type: text/plain; charset=\"" . get_settings('blog_charset') . "\"\r\n";
@wp_mail($user->user_email, $subject, $notify_message, $message_headers);
return true;
}
/* wp_notify_moderator
notifies the moderator of the blog (usually the admin)
about a new comment that waits for approval
always returns true
*/
function wp_notify_moderator($comment_id) {
global $wpdb;
global $querystring_start, $querystring_equal, $querystring_separator;
if( get_settings( "moderation_notify" ) == 0 )
return true;
$comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID='$comment_id' LIMIT 1");
$post = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID='$comment->comment_post_ID' LIMIT 1");
$user = $wpdb->get_row("SELECT * FROM $wpdb->users WHERE ID='$post->post_author' LIMIT 1");
$comment_author_domain = gethostbyaddr($comment->comment_author_IP);
$comments_waiting = $wpdb->get_var("SELECT count(comment_ID) FROM $wpdb->comments WHERE comment_approved = '0'");
$notify_message = "A new comment on the post #$comment->comment_post_ID \"".$post->post_title."\" is waiting for your approval\r\n\r\n";
$notify_message .= "Author : $comment->comment_author (IP: $comment->comment_author_IP , $comment_author_domain)\r\n";
$notify_message .= "E-mail : $comment->comment_author_email\r\n";
$notify_message .= "URL : $comment->comment_author_url\r\n";
$notify_message .= "Whois : http://ws.arin.net/cgi-bin/whois.pl?queryinput=$comment->comment_author_IP\r\n";
$notify_message .= "Comment:\r\n".$comment->comment_content."\r\n\r\n";
$notify_message .= "To approve this comment, visit: " . get_settings('siteurl') . "/wp-admin/post.php?action=mailapprovecomment&p=".$comment->comment_post_ID."&comment=$comment_id\r\n";
$notify_message .= "To delete this comment, visit: " . get_settings('siteurl') . "/wp-admin/post.php?action=confirmdeletecomment&p=".$comment->comment_post_ID."&comment=$comment_id\r\n";
$notify_message .= "Currently $comments_waiting comments are waiting for approval. Please visit the moderation panel:\r\n";
$notify_message .= get_settings('siteurl') . "/wp-admin/moderation.php\r\n";
$subject = '[' . get_settings('blogname') . '] Please approve: "' .$post->post_title.'"';
$admin_email = get_settings("admin_email");
$from = "From: $admin_email";
$message_headers = "MIME-Version: 1.0\r\n"
. "$from\r\n"
. "Content-Type: text/plain; charset=\"" . get_settings('blog_charset') . "\"\r\n";
@wp_mail($admin_email, $subject, $notify_message, $message_headers);
return true;
}
function start_wp($use_wp_query = false) {
global $post, $id, $postdata, $authordata, $day, $preview, $page, $pages, $multipage, $more, $numpages, $wp_query;
global $pagenow;
if ($use_wp_query) {
$post = $wp_query->next_post();
} else {
$wp_query->next_post();
}
if (!$preview) {
$id = $post->ID;
} else {
$id = 0;
$postdata = array (
'ID' => 0,
'Author_ID' => $_GET['preview_userid'],
'Date' => $_GET['preview_date'],
'Content' => $_GET['preview_content'],
'Excerpt' => $_GET['preview_excerpt'],
'Title' => $_GET['preview_title'],
'Category' => $_GET['preview_category'],
'Notify' => 1
);
}
$authordata = get_userdata($post->post_author);
$day = mysql2date('d.m.y', $post->post_date);
$currentmonth = mysql2date('m', $post->post_date);
$numpages = 1;
if (!$page)
$page = 1;
if (isset($p))
$more = 1;
$content = $post->post_content;
if (preg_match('/<!--nextpage-->/', $post->post_content)) {
if ($page > 1)
$more = 1;
$multipage = 1;
$content = $post->post_content;
$content = str_replace("\n<!--nextpage-->\n", '<!--nextpage-->', $content);
$content = str_replace("\n<!--nextpage-->", '<!--nextpage-->', $content);
$content = str_replace("<!--nextpage-->\n", '<!--nextpage-->', $content);
$pages = explode('<!--nextpage-->', $content);
$numpages = count($pages);
} else {
$pages[0] = $post->post_content;
$multipage = 0;
}
return true;
}
function is_new_day() {
global $day, $previousday;
if ($day != $previousday) {
return(1);
} else {
return(0);
}
}
// Filters: these are the core of WP's plugin architecture
function apply_filters($tag, $string) {
global $wp_filter;
if (isset($wp_filter['all'])) {
foreach ($wp_filter['all'] as $priority => $functions) {
if (isset($wp_filter[$tag][$priority]))
$wp_filter[$tag][$priority] = array_merge($wp_filter['all'][$priority], $wp_filter[$tag][$priority]);
else
$wp_filter[$tag][$priority] = array_merge($wp_filter['all'][$priority], array());
$wp_filter[$tag][$priority] = array_unique($wp_filter[$tag][$priority]);
}
}
if (isset($wp_filter[$tag])) {
ksort($wp_filter[$tag]);
foreach ($wp_filter[$tag] as $priority => $functions) {
if (!is_null($functions)) {
foreach($functions as $function) {
$string = call_user_func($function, $string);
}
}
}
}
return $string;
}
function add_filter($tag, $function_to_add, $priority = 10) {
global $wp_filter;
// So the format is wp_filter['tag']['array of priorities']['array of functions']
if (!@in_array($function_to_add, $wp_filter[$tag]["$priority"])) {
$wp_filter[$tag]["$priority"][] = $function_to_add;
}
return true;
}
function remove_filter($tag, $function_to_remove, $priority = 10) {
global $wp_filter;
if (@in_array($function_to_remove, $wp_filter[$tag]["$priority"])) {
foreach ($wp_filter[$tag]["$priority"] as $function) {
if ($function_to_remove != $function) {
$new_function_list[] = $function;
}
}
$wp_filter[$tag]["$priority"] = $new_function_list;
}
//die(var_dump($wp_filter));
return true;
}
// The *_action functions are just aliases for the *_filter functions, they take special strings instead of generic content
function do_action($tag, $string) {
return apply_filters($tag, $string);
}
function add_action($tag, $function_to_add, $priority = 10) {
add_filter($tag, $function_to_add, $priority);
}
function remove_action($tag, $function_to_remove, $priority = 10) {
remove_filter($tag, $function_to_remove, $priority);
}
function using_index_permalinks($permalink_structure = '') {
if (empty($permalink_structure)) {
$permalink_structure = get_settings('permalink_structure');
if (empty($permalink_structure)) {
return false;
}
}
// If the index is not in the permalink, we're using mod_rewrite.
if (preg_match('#^/*index.php#', $permalink_structure)) {
return true;
}
return false;
}
function preg_index($number, $matches = '') {
$match_prefix = '$';
$match_suffix = '';
if (! empty($matches)) {
$match_prefix = '$' . $matches . '[';
$match_suffix = ']';
}
return "$match_prefix$number$match_suffix";
}
function page_permastruct() {
$permalink_structure = get_settings('permalink_structure');
if (empty($permalink_structure)) {
return '';
}
$index = 'index.php';
$prefix = '';
if (using_index_permalinks()) {
$prefix = $index . '/';
}
return '/' . $prefix . 'site/%pagename%';
}
function get_page_uri($page) {
global $wpdb;
$page = $wpdb->get_row("SELECT post_name, post_parent FROM $wpdb->posts WHERE ID = '$page'");
$uri = $page->post_name;
while ($page->post_parent != 0) {
$page = $wpdb->get_row("SELECT post_name, post_parent FROM $wpdb->posts WHERE ID = '$page->post_parent'");
$uri = $page->post_name . "/" . $uri;
}
return $uri;
}
function page_rewrite_rules() {
$uris = get_settings('page_uris');
$rewrite_rules = array();
if( is_array( $uris ) )
{
foreach ($uris as $uri => $pagename) {
$rewrite_rules += array($uri . '/?$' => "index.php?pagename=$pagename");
}
}
return $rewrite_rules;
}
function generate_rewrite_rules($permalink_structure = '', $matches = '') {
$rewritecode =
array(
'%year%',
'%monthnum%',
'%day%',
'%hour%',
'%minute%',
'%second%',
'%postname%',
'%post_id%',
'%category%',
'%author%',
'%pagename%',
'%search%'
);
$rewritereplace =
array(
'([0-9]{4})',
'([0-9]{1,2})',
'([0-9]{1,2})',
'([0-9]{1,2})',
'([0-9]{1,2})',
'([0-9]{1,2})',
'([^/]+)',
'([0-9]+)',
'(.+?)',
'([^/]+)',
'([^/]+)',
'(.+)'
);
$queryreplace =
array (
'year=',
'monthnum=',
'day=',
'hour=',
'minute=',
'second=',
'name=',
'p=',
'category_name=',
'author_name=',
'pagename=',
's='
);
$feedregex = '(feed|rdf|rss|rss2|atom)/?$';
$trackbackregex = 'trackback/?$';
$pageregex = 'page/?([0-9]{1,})/?$';
$front = substr($permalink_structure, 0, strpos($permalink_structure, '%'));
preg_match_all('/%.+?%/', $permalink_structure, $tokens);
$num_tokens = count($tokens[0]);
$index = 'index.php';
$feedindex = $index;
$trackbackindex = $index;
for ($i = 0; $i < $num_tokens; ++$i) {
if (0 < $i) {
$queries[$i] = $queries[$i - 1] . '&';
}
$query_token = str_replace($rewritecode, $queryreplace, $tokens[0][$i]) . preg_index($i+1, $matches);
$queries[$i] .= $query_token;
}
$structure = $permalink_structure;
if ($front != '/') {
$structure = str_replace($front, '', $structure);
}
$structure = trim($structure, '/');
$dirs = explode('/', $structure);
$num_dirs = count($dirs);
$front = preg_replace('|^/+|', '', $front);
$post_rewrite = array();
$struct = $front;
for ($j = 0; $j < $num_dirs; ++$j) {
$struct .= $dirs[$j] . '/';
$match = str_replace($rewritecode, $rewritereplace, $struct);
$num_toks = preg_match_all('/%.+?%/', $struct, $toks);
$query = $queries[$num_toks - 1];
$pagematch = $match . $pageregex;
$pagequery = $index . '?' . $query . '&paged=' . preg_index($num_toks + 1, $matches);
$feedmatch = $match . $feedregex;
$feedquery = $feedindex . '?' . $query . '&feed=' . preg_index($num_toks + 1, $matches);
$post = 0;
if (strstr($struct, '%postname%') || strstr($struct, '%post_id%')
|| (strstr($struct, '%year%') && strstr($struct, '%monthnum%') && strstr($struct, '%day%') && strstr($struct, '%hour%') && strstr($struct, '%minute') && strstr($struct, '%second%'))) {
$post = 1;
$trackbackmatch = $match . $trackbackregex;
$trackbackquery = $trackbackindex . '?' . $query . '&tb=1';
$match = $match . '?([0-9]+)?/?$';
$query = $index . '?' . $query . '&page=' . preg_index($num_toks + 1, $matches);
} else {
$match .= '?$';
$query = $index . '?' . $query;
}
$post_rewrite = array($feedmatch => $feedquery, $pagematch => $pagequery, $match => $query) + $post_rewrite;
if ($post) {
$post_rewrite = array($trackbackmatch => $trackbackquery) + $post_rewrite;
}
}
return $post_rewrite;
}
/* rewrite_rules
* Construct rewrite matches and queries from permalink structure.
* matches - The name of the match array to use in the query strings.
* If empty, $1, $2, $3, etc. are used.
* Returns an associate array of matches and queries.
*/
function rewrite_rules($matches = '', $permalink_structure = '') {
$rewrite = array();
if (empty($permalink_structure)) {
$permalink_structure = get_settings('permalink_structure');
if (empty($permalink_structure)) {
return $rewrite;
}
}
$post_rewrite = generate_rewrite_rules($permalink_structure, $matches);
$feedregex = '(feed|rdf|rss|rss2|atom)/?$';
$pageregex = 'page/?([0-9]{1,})/?$';
$front = substr($permalink_structure, 0, strpos($permalink_structure, '%'));
$index = 'index.php';
$prefix = '';
if (using_index_permalinks($permalink_structure)) {
$prefix = $index . '/';
}
// If the permalink does not have year, month, and day, we need to create a
// separate archive rule.
$doarchive = false;
if (! (strstr($permalink_structure, '%year%') && strstr($permalink_structure, '%monthnum%') && strstr($permalink_structure, '%day%')) ||
preg_match('/%category%.*(%year%|%monthnum%|%day%)/', $permalink_structure)) {
$doarchive = true;
$archive_structure = $front . '%year%/%monthnum%/%day%/';
$archive_rewrite = generate_rewrite_rules($archive_structure, $matches);
}
// Site feed
$sitefeedmatch = $prefix . 'feed/?([_0-9a-z-]+)?/?$';
$sitefeedquery = 'index.php?feed=_' . preg_index(1, $matches);
// Site comment feed
$sitecommentfeedmatch = $prefix . 'comments/feed/?([_0-9a-z-]+)?/?$';
$sitecommentfeedquery = 'index.php?feed=_' . preg_index(1, $matches) . '&withcomments=1';
// Site page
$sitepagematch = $prefix . $pageregex;
$sitepagequery = 'index.php?paged=' . preg_index(1, $matches);
$site_rewrite = array(
$sitefeedmatch => $sitefeedquery,
$sitecommentfeedmatch => $sitecommentfeedquery,
$sitepagematch => $sitepagequery,
);
// Search
$search_structure = $prefix . "search/%search%";
$search_rewrite = generate_rewrite_rules($search_structure, $matches);
// Categories
if ( '' == get_settings('category_base') )
$category_structure = $front . 'category/';
else
$category_structure = get_settings('category_base') . '/';
$category_structure = $category_structure . '%category%';
$category_rewrite = generate_rewrite_rules($category_structure, $matches);
// Authors
$author_structure = $front . 'author/%author%';
$author_rewrite = generate_rewrite_rules($author_structure, $matches);
// Site static pages
$page_structure = $prefix . 'site/%pagename%';
$page_rewrite = generate_rewrite_rules($page_structure, $matches);
// Pages
$pages_rewrite = page_rewrite_rules();
// Put them together.
$rewrite = $pages_rewrite + $site_rewrite + $page_rewrite + $search_rewrite + $category_rewrite + $author_rewrite;
// Add on archive rewrite rules if needed.
if ($doarchive) {
$rewrite = $rewrite + $archive_rewrite;
}
$rewrite = $rewrite + $post_rewrite;
$rewrite = apply_filters('rewrite_rules_array', $rewrite);
return $rewrite;
}
function mod_rewrite_rules ($permalink_structure) {
$site_root = str_replace('http://', '', trim(get_settings('siteurl')));
$site_root = preg_replace('|([^/]*)(.*)|i', '$2', $site_root);
if ('/' != substr($site_root, -1)) $site_root = $site_root . '/';
$home_root = str_replace('http://', '', trim(get_settings('home')));
$home_root = preg_replace('|([^/]*)(.*)|i', '$2', $home_root);
if ('/' != substr($home_root, -1)) $home_root = $home_root . '/';
$rules = "<IfModule mod_rewrite.c>\n";
$rules .= "RewriteEngine On\n";
$rules .= "RewriteBase $home_root\n";
$rewrite = rewrite_rules('', $permalink_structure);
foreach ($rewrite as $match => $query) {
// Apache 1.3 does not support the reluctant (non-greedy) modifier.
$match = str_replace('.+?', '.+', $match);
// If the match is unanchored and greedy, prepend rewrite conditions
// to avoid infinite redirects and eclipsing of real files.
if ($match == '(.+)/?$') {
$rules .= "RewriteCond %{REQUEST_FILENAME} !-f\n" .
"RewriteCond %{REQUEST_FILENAME} !-d\n";
}
if (strstr($query, 'index.php')) {
$rules .= 'RewriteRule ^' . $match . ' ' . $home_root . $query . " [QSA,L]\n";
} else {
$rules .= 'RewriteRule ^' . $match . ' ' . $site_root . $query . " [QSA,L]\n";
}
}
$rules .= "</IfModule>\n";
$rules = apply_filters('rewrite_rules', $rules);
return $rules;
}
function get_posts($args) {
global $wpdb;
parse_str($args, $r);
if (!isset($r['numberposts'])) $r['numberposts'] = 5;
if (!isset($r['offset'])) $r['offset'] = 0;
// The following not implemented yet
if (!isset($r['category'])) $r['category'] = '';
if (!isset($r['orderby'])) $r['orderby'] = '';
if (!isset($r['order'])) $r['order'] = '';
$now = current_time('mysql');
$posts = $wpdb->get_results("SELECT DISTINCT * FROM $wpdb->posts WHERE post_date <= '$now' AND (post_status = 'publish') GROUP BY $wpdb->posts.ID ORDER BY post_date DESC LIMIT " . $r['offset'] . ',' . $r['numberposts']);
update_post_caches($posts);
return $posts;
}
function check_comment($author, $email, $url, $comment, $user_ip) {
global $wpdb;
if (1 == get_settings('comment_moderation')) return false; // If moderation is set to manual
if ( (count(explode('http:', $comment)) - 1) >= get_settings('comment_max_links') )
return false; // Check # of external links
// Comment whitelisting:
if ( 1 == get_settings('comment_whitelist')) {
$ok_to_comment = $wpdb->get_var("SELECT comment_approved FROM $wpdb->comments WHERE comment_author_email = '$email' and comment_approved = '1' ");
if ( 1 == $ok_to_comment && false === strpos( $email, get_settings('moderation_keys')) )
return true;
return false;
}
$mod_keys = trim( get_settings('moderation_keys') );
if ('' == $mod_keys )
return true; // If moderation keys are empty
$words = explode("\n", $mod_keys );
foreach ($words as $word) {
$word = trim($word);
// Skip empty lines
if (empty($word)) { continue; }
$pattern = "#$word#i";
if ( preg_match($pattern, $author) ) return false;
if ( preg_match($pattern, $email) ) return false;
if ( preg_match($pattern, $url) ) return false;
if ( preg_match($pattern, $comment) ) return false;
if ( preg_match($pattern, $user_ip) ) return false;
if ( preg_match($pattern, $useg_agent) ) return false;
}
return true;
}
function query_posts($query) {
global $wp_query;
return $wp_query->query($query);
}
function update_post_caches($posts) {
global $category_cache, $comment_count_cache, $post_meta_cache;
global $wpdb;
// No point in doing all this work if we didn't match any posts.
if (! $posts) {
return;
}
// Get the categories for all the posts
foreach ($posts as $post) {
$post_id_list[] = $post->ID;
}
$post_id_list = implode(',', $post_id_list);
$dogs = $wpdb->get_results("SELECT DISTINCT
ID, category_id, cat_name, category_nicename, category_description, category_parent
FROM $wpdb->categories, $wpdb->post2cat, $wpdb->posts
WHERE category_id = cat_ID AND post_id = ID AND post_id IN ($post_id_list)");
if (!empty($dogs)) {
foreach ($dogs as $catt) {
$category_cache[$catt->ID][] = $catt;
}
}
// Do the same for comment numbers
$comment_counts = $wpdb->get_results("SELECT ID, COUNT( comment_ID ) AS ccount
FROM $wpdb->posts
LEFT JOIN $wpdb->comments ON ( comment_post_ID = ID AND comment_approved = '1')
WHERE post_status = 'publish' AND ID IN ($post_id_list)
GROUP BY ID");
if ($comment_counts) {
foreach ($comment_counts as $comment_count) {
$comment_count_cache["$comment_count->ID"] = $comment_count->ccount;
}
}
// Get post-meta info
if ( $meta_list = $wpdb->get_results("SELECT post_id, meta_key, meta_value FROM $wpdb->postmeta WHERE post_id IN($post_id_list) ORDER BY post_id, meta_key", ARRAY_A) ) {
// Change from flat structure to hierarchical:
$post_meta_cache = array();
foreach ($meta_list as $metarow) {
$mpid = $metarow['post_id'];
$mkey = $metarow['meta_key'];
$mval = $metarow['meta_value'];
// Force subkeys to be array type:
if (!isset($post_meta_cache[$mpid]) || !is_array($post_meta_cache[$mpid]))
$post_meta_cache[$mpid] = array();
if (!isset($post_meta_cache[$mpid]["$mkey"]) || !is_array($post_meta_cache[$mpid]["$mkey"]))
$post_meta_cache[$mpid]["$mkey"] = array();
// Add a value to the current pid/key:
$post_meta_cache[$mpid][$mkey][] = $mval;
}
}
}
function update_category_cache() {
global $cache_categories, $wpdb;
$dogs = $wpdb->get_results("SELECT * FROM $wpdb->categories");
foreach ($dogs as $catt) {
$cache_categories[$catt->cat_ID] = $catt;
}
}
function update_user_cache() {
global $cache_userdata, $wpdb;
if ( $users = $wpdb->get_results("SELECT * FROM $wpdb->users WHERE user_level > 0") ) :
foreach ($users as $user) :
$cache_userdata[$user->ID] = $user;
endforeach;
return true;
else:
return false;
endif;
}
function wp_head() {
do_action('wp_head', '');
}
function is_single ($post = '') {
global $wp_query;
if (! $wp_query->is_single) {
return false;
}
if (empty($post)) {
return true;
}
$post_obj = $wp_query->get_queried_object();
if ($post == $post_obj->ID) {
return true;
} else if ($post == $post_obj->post_title) {
return true;
} else if ($post == $post_obj->post_name) {
return true;
}
return false;
}
function is_page ($page = '') {
global $wp_query;
if (! $wp_query->is_page) {
return false;
}
if (empty($page)) {
return true;
}
$page_obj = $wp_query->get_queried_object();
if ($page == $page_obj->ID) {
return true;
} else if ($page == $page_obj->post_title) {
return true;
} else if ($page == $page_obj->post_name) {
return true;
}
return false;
}
function is_archive () {
global $wp_query;
return $wp_query->is_archive;
}
function is_date () {
global $wp_query;
return $wp_query->is_date;
}
function is_year () {
global $wp_query;
return $wp_query->is_year;
}
function is_month () {
global $wp_query;
return $wp_query->is_month;
}
function is_day () {
global $wp_query;
return $wp_query->is_day;
}
function is_time () {
global $wp_query;
return $wp_query->is_time;
}
function is_author ($author = '') {
global $wp_query;
if (! $wp_query->is_author) {
return false;
}
if (empty($author)) {
return true;
}
$author_obj = $wp_query->get_queried_object();
if ($author == $author_obj->ID) {
return true;
} else if ($author == $author_obj->user_nickname) {
return true;
} else if ($author == $author_obj->user_nicename) {
return true;
}
return false;
}
function is_category ($category = '') {
global $wp_query;
if (! $wp_query->is_category) {
return false;
}
if (empty($category)) {
return true;
}
$cat_obj = $wp_query->get_queried_object();
if ($category == $cat_obj->cat_ID) {
return true;
} else if ($category == $cat_obj->cat_name) {
return true;
} else if ($category == $cat_obj->category_nicename) {
return true;
}
return false;
}
function is_search () {
global $wp_query;
return $wp_query->is_search;
}
function is_feed () {
global $wp_query;
return $wp_query->is_feed;
}
function is_home () {
global $wp_query;
return $wp_query->is_home;
}
function is_404 () {
global $wp_query;
return $wp_query->is_404;
}
function get_query_var($var) {
global $wp_query;
return $wp_query->get($var);
}
function have_posts() {
global $wp_query;
return $wp_query->have_posts();
}
function the_post() {
start_wp(true);
}
function get_stylesheet() {
return apply_filters('stylesheet', get_settings('stylesheet'));
}
function get_template() {
return apply_filters('template', get_settings('template'));
}
function get_template_directory() {
$template = get_template();
if (empty($template) || $template == 'default') {
$template = ABSPATH . "wp-content";
} else {
$template = ABSPATH . "wp-content/themes/$template";
}
return $template;
}
function get_theme_data($theme_file) {
$theme_data = implode('', file($theme_file));
preg_match("|Theme Name:(.*)|i", $theme_data, $theme_name);
preg_match("|Theme URI:(.*)|i", $theme_data, $theme_uri);
preg_match("|Description:(.*)|i", $theme_data, $description);
preg_match("|Author:(.*)|i", $theme_data, $author_name);
preg_match("|Author URI:(.*)|i", $theme_data, $author_uri);
preg_match("|Template:(.*)|i", $theme_data, $template);
if ( preg_match("|Version:(.*)|i", $theme_data, $version) )
$version = $version[1];
else
$version ='';
$description = wptexturize($description[1]);
$name = $theme_name[1];
$name = trim($name);
$theme = $name;
if ('' != $theme_uri[1] && '' != $name) {
$theme = __("<a href='{$theme_uri[1]}' title='Visit theme homepage'>{$theme}</a>");
}
if ('' == $author_uri[1]) {
$author = $author_name[1];
} else {
$author = __("<a href='{$author_uri[1]}' title='Visit author homepage'>{$author_name[1]}</a>");
}
return array('Name' => $name, 'Title' => $theme, 'Description' => $description, 'Author' => $author, 'Version' => $version, 'Template' => $template[1]);
}
function get_themes() {
global $wp_themes;
if (isset($wp_themes)) {
return $wp_themes;
}
$themes = array();
$theme_loc = 'wp-content/themes';
$theme_root = ABSPATH . $theme_loc;
// Files in wp-content/themes directory
$themes_dir = @ dir($theme_root);
if ($themes_dir) {
while(($theme_dir = $themes_dir->read()) !== false) {
if (is_dir($theme_root . '/' . $theme_dir)) {
$stylish_dir = @ dir($theme_root . '/' . $theme_dir);
while(($theme_file = $stylish_dir->read()) !== false) {
if ( $theme_file == 'style.css' ) {
$theme_files[] = $theme_dir . '/' . $theme_file;
}
}
}
}
}
$default_files = array(get_settings('blogfilename'), 'wp-comments.php', 'wp-comments-popup.php', 'wp-comments-post.php', 'wp-footer.php', 'wp-header.php', 'wp-sidebar.php', 'footer.php', 'header.php', 'sidebar.php');
// Get the files for the default template.
$default_template_files = array();
{
$dirs = array('', 'wp-content');
foreach ($dirs as $dir) {
$template_dir = @ dir(ABSPATH . $dir);
while(($file = $template_dir->read()) !== false) {
if ( !preg_match('|^\.+$|', $file) && in_array($file, $default_files))
$default_template_files[] = trim("$dir/$file", '/');
}
}
}
// Get the files for the default stylesheet.
$default_stylesheet_files = array();
{
$stylesheet_dir = @ dir(ABSPATH);
while(($file = $stylesheet_dir->read()) !== false) {
if ( !preg_match('|^\.+$|', $file) && preg_match('|\.css$|', $file))
$default_stylesheet_files[] = "$file";
}
}
// The default theme always exists.
$themes['Default'] = array('Name' => 'Default', 'Title' => 'WordPress Default', 'Description' => 'The default theme included with WordPress.', 'Author' => 'Dave Shea', 'Version' => '1.3', 'Template' => 'default', 'Stylesheet' => 'default', 'Template Files' => $default_template_files, 'Stylesheet Files' => $default_stylesheet_files, 'Template Dir' => '/', 'Stylesheet Dir' => '/', 'Parent Theme' => '');
if (!$themes_dir || !$theme_files) {
return $themes;
}
sort($theme_files);
foreach($theme_files as $theme_file) {
$theme_data = get_theme_data("$theme_root/$theme_file");
$name = $theme_data['Name'];
$title = $theme_data['Title'];
$description = wptexturize($theme_data['Description']);
$version = $theme_data['Version'];
$author = $theme_data['Author'];
$template = $theme_data['Template'];
$stylesheet = dirname($theme_file);
if (empty($template)) {
if (file_exists(dirname("$theme_root/$theme_file/index.php"))) {
$template = dirname($theme_file);
} else {
continue;
}
}
$template = trim($template);
if (($template != 'default') && (! file_exists("$theme_root/$template/index.php"))) {
continue;
}
if (empty($name)) {
$name = dirname($theme_file);
$title = $name;
}
$stylesheet_files = array();
if ($stylesheet != 'default') {
$stylesheet_dir = @ dir("$theme_root/$stylesheet");
if ($stylesheet_dir) {
while(($file = $stylesheet_dir->read()) !== false) {
if ( !preg_match('|^\.+$|', $file) && preg_match('|\.css$|', $file) )
$stylesheet_files[] = "$theme_loc/$stylesheet/$file";
}
}
} else {
$stylesheet_files = $default_stylesheet_files;
}
$template_files = array();
if ($template != 'default') {
$template_dir = @ dir("$theme_root/$template");
if ($template_dir) {
while(($file = $template_dir->read()) !== false) {
if ( !preg_match('|^\.+$|', $file) && preg_match('|\.php$|', $file) )
$template_files[] = "$theme_loc/$template/$file";
}
}
} else {
$template_files = $default_template_files;
}
$template_dir = dirname($template_files[0]);
$stylesheet_dir = dirname($stylesheet_files[0]);
if (empty($template_dir)) $template_dir = '/';
if (empty($stylesheet_dir)) $stylesheet_dir = '/';
$themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => $description, 'Author' => $author, 'Version' => $version, 'Template' => $template, 'Stylesheet' => $stylesheet, 'Template Files' => $template_files, 'Stylesheet Files' => $stylesheet_files, 'Template Dir' => $template_dir, 'Stylesheet Dir' => $stylesheet_dir);
}
// Resolve theme dependencies.
$theme_names = array_keys($themes);
foreach ($theme_names as $theme_name) {
$themes[$theme_name]['Parent Theme'] = '';
if ($themes[$theme_name]['Stylesheet'] != $themes[$theme_name]['Template']) {
foreach ($theme_names as $parent_theme_name) {
if (($themes[$parent_theme_name]['Stylesheet'] == $themes[$parent_theme_name]['Template']) && ($themes[$parent_theme_name]['Template'] == $themes[$theme_name]['Template'])) {
$themes[$theme_name]['Parent Theme'] = $themes[$parent_theme_name]['Name'];
break;
}
}
}
}
$wp_themes = $themes;
return $themes;
}
function get_theme($theme) {
$themes = get_themes();
if (array_key_exists($theme, $themes)) {
return $themes[$theme];
}
return NULL;
}
function get_current_theme() {
$themes = get_themes();
$theme_names = array_keys($themes);
$current_template = get_settings('template');
$current_stylesheet = get_settings('stylesheet');
$current_theme = 'Default';
if ($themes) {
foreach ($theme_names as $theme_name) {
if ($themes[$theme_name]['Stylesheet'] == $current_stylesheet &&
$themes[$theme_name]['Template'] == $current_template) {
$current_theme = $themes[$theme_name]['Name'];
}
}
}
return $current_theme;
}
function get_page_template() {
global $wp_query;
$id = $wp_query->post->ID;
$template_dir = get_template_directory();
$default = "$template_dir/page.php";
$template = get_post_meta($id, '_wp_page_template', true);
if (empty($template) || ($template == 'default')) {
return $default;
}
if (file_exists("$template_dir/$template")) {
return "$template_dir/$template";
}
return $default;
}
// Borrowed from the PHP Manual user notes. Convert entities, while
// preserving already-encoded entities:
function htmlentities2($myHTML) {
$translation_table=get_html_translation_table (HTML_ENTITIES,ENT_QUOTES);
$translation_table[chr(38)] = '&';
return preg_replace("/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,3};)/","&amp;" , strtr($myHTML, $translation_table));
}
function wp_mail($to, $subject, $message, $headers = '', $more = '') {
if( $headers == '' ) {
$headers = "MIME-Version: 1.0\r\n" .
"From: " . $to . " <" . $to . ">\r\n" .
"Content-Type: text/plain; charset=\"" . get_settings('blog_charset') . "\"\r\n";
}
if ( function_exists('mb_send_mail') )
return mb_send_mail($to, $subject, $message, $headers, $more);
else
return mail($to, $subject, $message, $headers, $more);
}
function wp_login($username, $password, $already_md5 = false) {
global $wpdb, $error;
if ( !$username )
return false;
if ( !$password ) {
$error = __('<strong>Error</strong>: The password field is empty.');
return false;
}
$login = $wpdb->get_row("SELECT ID, user_login, user_pass FROM $wpdb->users WHERE user_login = '$username'");
if (!$login) {
$error = __('<strong>Error</strong>: Wrong login.');
return false;
} else {
// If the password is already_md5, it has been double hashed.
// Otherwise, it is plain text.
if ( ($already_md5 && $login->user_login == $username && md5($login->user_pass) == $password) || ($login->user_login == $username && $login->user_pass == md5($password)) ) {
return true;
} else {
$error = __('<strong>Error</strong>: Incorrect password.');
$pwd = '';
return false;
}
}
}
function is_plugin_page() {
global $plugin_page;
if (isset($plugin_page)) {
return true;
}
return false;
}
/*
add_query_arg: Returns a modified querystring by adding
a single key & value or an associative array.
Setting a key value to emptystring removes the key.
Omitting oldquery_or_uri uses the $_SERVER value.
Parameters:
add_query_arg(newkey, newvalue, oldquery_or_uri) or
add_query_arg(associative_array, oldquery_or_uri)
*/
function add_query_arg() {
$ret = '';
if(is_array(func_get_arg(0))) {
$uri = @func_get_arg(1);
}
else {
$uri = @func_get_arg(2);
}
if ('' == $uri) {
$uri = $_SERVER['REQUEST_URI'];
}
if (strstr($uri, '?')) {
$parts = explode('?', $uri, 2);
if (1 == count($parts)) {
$base = '?';
$query = $parts[0];
}
else {
$base = $parts[0] . '?';
$query = $parts[1];
}
}
else {
$base = $uri . '?';
$query = '';
}
parse_str($query, $qs);
if (is_array(func_get_arg(0))) {
$kayvees = func_get_arg(0);
$qs = array_merge($qs, $kayvees);
}
else
{
$qs[func_get_arg(0)] = func_get_arg(1);
}
foreach($qs as $k => $v)
{
if($v != '')
{
if($ret != '') $ret .= '&';
$ret .= "$k=$v";
}
}
$ret = $base . $ret;
return trim($ret, '?');
}
function remove_query_arg($key, $query) {
add_query_arg($key, '', $query);
}
?>
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