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WordPress/wp-includes/functions.php

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<?php
require_once(dirname(__FILE__).'/compat.php');
if ( !function_exists('_') ) {
function _($string) {
return $string;
}
}
function mysql2date($dateformatstring, $mysqlstring, $translate = true) {
global $wp_locale;
$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( 'U' == $dateformatstring )
return $i;
if ( -1 == $i || false == $i )
$i = 0;
if ( !empty($wp_locale->month) && !empty($wp_locale->weekday) && $translate ) {
$datemonth = $wp_locale->get_month(date('m', $i));
$datemonth_abbrev = $wp_locale->get_month_abbrev($datemonth);
$dateweekday = $wp_locale->get_weekday(date('w', $i));
$dateweekday_abbrev = $wp_locale->get_weekday_abbrev($dateweekday);
$datemeridiem = $wp_locale->get_meridiem(date('a', $i));
$datemeridiem_capital = $wp_locale->get_meridiem(date('A', $i));
$dateformatstring = ' '.$dateformatstring;
$dateformatstring = preg_replace("/([^\\\])D/", "\\1".backslashit($dateweekday_abbrev), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])F/", "\\1".backslashit($datemonth), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])l/", "\\1".backslashit($dateweekday), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])M/", "\\1".backslashit($datemonth_abbrev), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])a/", "\\1".backslashit($datemeridiem), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])A/", "\\1".backslashit($datemeridiem_capital), $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 $wp_locale;
$i = $unixtimestamp;
if ( (!empty($wp_locale->month)) && (!empty($wp_locale->weekday)) ) {
$datemonth = $wp_locale->get_month(date('m', $i));
$datemonth_abbrev = $wp_locale->get_month_abbrev($datemonth);
$dateweekday = $wp_locale->get_weekday(date('w', $i));
$dateweekday_abbrev = $wp_locale->get_weekday_abbrev($dateweekday);
$datemeridiem = $wp_locale->get_meridiem(date('a', $i));
$datemeridiem_capital = $wp_locale->get_meridiem(date('A', $i));
$dateformatstring = ' '.$dateformatstring;
$dateformatstring = preg_replace("/([^\\\])D/", "\\1".backslashit($dateweekday_abbrev), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])F/", "\\1".backslashit($datemonth), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])l/", "\\1".backslashit($dateweekday), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])M/", "\\1".backslashit($datemonth_abbrev), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])a/", "\\1".backslashit($datemeridiem), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])A/", "\\1".backslashit($datemeridiem_capital), $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;
if ( $weekday < get_settings('start_of_week') )
$weekday = 7 - (get_settings('start_of_week') - $weekday);
while ($weekday > get_settings('start_of_week')) {
$weekday = date('w',$day);
if ( $weekday < get_settings('start_of_week') )
$weekday = 7 - (get_settings('start_of_week') - $weekday);
$day = $day - 86400;
$i = 0;
}
$week['start'] = $day + 86400 - $i;
// $week['end'] = $day - $i + 691199;
$week['end'] = $week['start'] + 604799;
return $week;
}
function get_lastpostdate($timezone = 'server') {
global $cache_lastpostdate, $pagenow, $wpdb;
$add_seconds_blog = get_settings('gmt_offset') * 3600;
$add_seconds_server = date('Z');
if ( !isset($cache_lastpostdate[$timezone]) ) {
switch(strtolower($timezone)) {
case 'gmt':
$lastpostdate = $wpdb->get_var("SELECT post_date_gmt FROM $wpdb->posts WHERE 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_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_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;
$add_seconds_server = date('Z');
if ( !isset($cache_lastpostmodified[$timezone]) ) {
switch(strtolower($timezone)) {
case 'gmt':
$lastpostmodified = $wpdb->get_var("SELECT post_modified_gmt FROM $wpdb->posts WHERE 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_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_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 $lastpostmodified;
}
function maybe_unserialize($original) {
if ( false !== $gm = @ unserialize($original) )
return $gm;
else
return $original;
}
/* Options functions */
function get_settings($setting) {
global $wpdb;
$value = wp_cache_get($setting, 'options');
if ( false === $value ) {
if ( defined('WP_INSTALLING') )
$wpdb->hide_errors();
$row = $wpdb->get_row("SELECT option_value FROM $wpdb->options WHERE option_name = '$setting' LIMIT 1");
if ( defined('WP_INSTALLING') )
$wpdb->show_errors();
if( is_object( $row) ) { // Has to be get_row instead of get_var because of funkiness with 0, false, null values
$value = $row->option_value;
wp_cache_set($setting, $value, 'options');
} else {
return false;
}
}
// If home is not set use siteurl.
if ( 'home' == $setting && '' == $value )
return get_settings('siteurl');
if ( 'siteurl' == $setting || 'home' == $setting || 'category_base' == $setting )
$value = preg_replace('|/+$|', '', $value);
return apply_filters( 'option_' . $setting, maybe_unserialize($value) );
}
function get_option($option) {
return get_settings($option);
}
function form_option($option) {
echo htmlspecialchars( get_option($option), ENT_QUOTES );
}
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'") ) {
$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);
$value = maybe_unserialize($option->option_value);
$all_options->{$option->option_name} = apply_filters('pre_option_' . $option->option_name, $value);
}
return apply_filters('all_options', $all_options);
}
function update_option($option_name, $newvalue) {
global $wpdb;
if ( is_string($newvalue) )
$newvalue = trim($newvalue);
// If the new and old values are the same, no need to update.
$oldvalue = get_option($option_name);
if ( $newvalue == $oldvalue ) {
return false;
}
if ( false === $oldvalue ) {
add_option($option_name, $newvalue);
return true;
}
$_newvalue = $newvalue;
if ( is_array($newvalue) || is_object($newvalue) )
$newvalue = serialize($newvalue);
wp_cache_set($option_name, $newvalue, 'options');
$newvalue = $wpdb->escape($newvalue);
$option_name = $wpdb->escape($option_name);
$wpdb->query("UPDATE $wpdb->options SET option_value = '$newvalue' WHERE option_name = '$option_name'");
if ( $wpdb->rows_affected == 1 ) {
do_action("update_option_{$option_name}", array('old'=>$oldvalue, 'new'=>$_newvalue));
return true;
}
return false;
}
// thx Alex Stapleton, http://alex.vort-x.net/blog/
function add_option($name, $value = '', $description = '', $autoload = 'yes') {
global $wpdb;
// Make sure the option doesn't already exist
if ( false !== get_option($name) )
return;
if ( is_array($value) || is_object($value) )
$value = serialize($value);
wp_cache_set($name, $value, 'options');
$name = $wpdb->escape($name);
$value = $wpdb->escape($value);
$description = $wpdb->escape($description);
$wpdb->query("INSERT INTO $wpdb->options (option_name, option_value, option_description, autoload) VALUES ('$name', '$value', '$description', '$autoload')");
return;
}
function delete_option($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'");
wp_cache_delete($name, 'options');
return true;
}
function gzip_compression() {
if ( !get_settings('gzipcompression') ) return false;
if ( extension_loaded('zlib') ) {
ob_start('ob_gzhandler');
}
}
// functions to count the page generation time (from phpBB2)
// ( or just any time between timer_start() and timer_stop() )
function timer_stop($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;
$home = trailingslashit( get_option('home') );
if ( !$client->query('weblogUpdates.extendedPing', get_settings('blogname'), $home, get_bloginfo('rss2_url') ) ) // then try a normal ping
$client->query('weblogUpdates.ping', get_settings('blogname'), $home);
}
function generic_ping($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 $post_id;
}
// Send a Trackback
function trackback($trackback_url, $title, $excerpt, $ID) {
global $wpdb, $wp_version;
if ( empty($trackback_url) )
return;
$title = urlencode($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 .= "User-Agent: WordPress/" . $wp_version;
$http_request .= "\r\n\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);
$tb_url = addslashes( $tb_url );
$wpdb->query("UPDATE $wpdb->posts SET pinged = CONCAT(pinged, '\n', '$tb_url') WHERE ID = '$ID'");
return $wpdb->query("UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, '$tb_url', '')) WHERE ID = '$ID'");
}
function make_url_footnote($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://') && (strtolower(substr($link_url,0,8)) != 'https://')) ? 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');
$log = debug_fopen(ABSPATH . '/enclosures.log', 'a');
$post_links = array();
debug_fwrite($log, 'BEGIN '.date('YmdHis', time())."\n");
$pung = get_enclosed( $post_ID );
$ltrs = '\w';
$gunk = '/#~:.?+=&%@!\-';
$punc = '.:?\-';
$any = $ltrs . $gunk . $punc;
preg_match_all("{\b http : [$any] +? (?= [$punc] * [^$any] | $)}x", $content, $post_links_temp);
debug_fwrite($log, 'Post contents:');
debug_fwrite($log, $content."\n");
foreach($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 ( $url != '' && !$wpdb->get_var("SELECT post_id FROM $wpdb->postmeta WHERE post_id = '$post_ID' AND meta_key = 'enclosure' AND meta_value LIKE ('$url%')") ) {
if ( $headers = wp_get_http_headers( $url) ) {
$len = (int) $headers['content-length'];
$type = $wpdb->escape( $headers['content-type'] );
$allowed_types = array( 'video', 'audio' );
if ( in_array( substr( $type, 0, strpos( $type, "/" ) ), $allowed_types ) ) {
$meta_value = "$url\n$len\n$type\n";
$wpdb->query( "INSERT INTO `$wpdb->postmeta` ( `post_id` , `meta_key` , `meta_value` )
VALUES ( '$post_ID', 'enclosure' , '$meta_value')" );
}
}
}
endforeach;
}
function wp_get_http_headers( $url, $red = 1 ) {
global $wp_version;
@set_time_limit( 60 );
if ( $red > 5 )
return false;
$parts = parse_url( $url );
$file = $parts['path'] . ($parts['query'] ? '?'.$parts['query'] : '');
$host = $parts['host'];
if ( !isset( $parts['port'] ) )
$parts['port'] = 80;
$head = "HEAD $file HTTP/1.1\r\nHOST: $host\r\nUser-Agent: WordPress/" . $wp_version . "\r\n\r\n";
$fp = @fsockopen($host, $parts['port'], $err_num, $err_msg, 3);
if ( !$fp )
return false;
$response = '';
fputs( $fp, $head );
while ( !feof( $fp ) && strpos( $response, "\r\n\r\n" ) == false )
$response .= fgets( $fp, 2048 );
fclose( $fp );
preg_match_all('/(.*?): (.*)\r/', $response, $matches);
$count = count($matches[1]);
for ( $i = 0; $i < $count; $i++) {
$key = strtolower($matches[1][$i]);
$headers["$key"] = $matches[2][$i];
}
preg_match('/.*([0-9]{3}).*/', $response, $return);
$headers['response'] = $return[1]; // HTTP response code eg 204, 200, 404
$code = $headers['response'];
if ( ('302' == $code || '301' == $code) && isset($headers['location']) )
return wp_get_http_headers( $headers['location'], ++$red );
return $headers;
}
function is_new_day() {
global $day, $previousday;
if ( $day != $previousday ) {
return(1);
} else {
return(0);
}
}
function update_post_cache(&$posts) {
global $post_cache;
if ( !$posts )
return;
for ($i = 0; $i < count($posts); $i++) {
$post_cache[$posts[$i]->ID] = &$posts[$i];
}
}
function clean_post_cache($id) {
global $post_cache;
if ( isset( $post_cache[$id] ) )
unset( $post_cache[$id] );
}
function update_page_cache(&$pages) {
global $page_cache;
if ( !$pages )
return;
for ($i = 0; $i < count($pages); $i++) {
$page_cache[$pages[$i]->ID] = &$pages[$i];
wp_cache_add($pages[$i]->ID, $pages[$i], 'pages');
}
}
function clean_page_cache($id) {
global $page_cache;
if ( isset( $page_cache[$id] ) )
unset( $page_cache[$id] );
}
function update_post_category_cache($post_ids) {
global $wpdb, $category_cache;
if ( empty($post_ids) )
return;
if ( is_array($post_ids) )
$post_ids = implode(',', $post_ids);
$dogs = $wpdb->get_results("SELECT post_id, category_id FROM $wpdb->post2cat WHERE post_id IN ($post_ids)");
if ( empty($dogs) )
return;
foreach ($dogs as $catt)
$category_cache[$catt->post_id][$catt->category_id] = &get_category($catt->category_id);
}
function update_post_caches(&$posts) {
global $post_cache, $category_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
for ($i = 0; $i < count($posts); $i++) {
$post_id_array[] = $posts[$i]->ID;
$post_cache[$posts[$i]->ID] = &$posts[$i];
}
$post_id_list = implode(',', $post_id_array);
update_post_category_cache($post_id_list);
// 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() {
return true;
}
/*
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)) ) {
if ( @func_num_args() < 2 || '' == @func_get_arg(1) )
$uri = $_SERVER['REQUEST_URI'];
else
$uri = @func_get_arg(1);
} else {
if ( @func_num_args() < 3 || '' == @func_get_arg(2) )
$uri = $_SERVER['REQUEST_URI'];
else
$uri = @func_get_arg(2);
}
if ( preg_match('|^https?://|i', $uri, $matches) ) {
$protocol = $matches[0];
$uri = substr($uri, strlen($protocol));
} else {
$protocol = '';
}
if ( strstr($uri, '?') ) {
$parts = explode('?', $uri, 2);
if ( 1 == count($parts) ) {
$base = '?';
$query = $parts[0];
} else {
$base = $parts[0] . '?';
$query = $parts[1];
}
} else if ( strstr($uri, '/') ) {
$base = $uri . '?';
$query = '';
} else {
$base = '';
$query = $uri;
}
parse_str($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 = $protocol . $base . $ret;
if ( get_magic_quotes_gpc() )
$ret = stripslashes($ret); // parse_str() adds slashes if magicquotes is on. See: http://php.net/parse_str
return trim($ret, '?');
}
/*
remove_query_arg: Returns a modified querystring by removing
a single key or an array of keys.
Omitting oldquery_or_uri uses the $_SERVER value.
Parameters:
remove_query_arg(removekey, [oldquery_or_uri]) or
remove_query_arg(removekeyarray, [oldquery_or_uri])
*/
function remove_query_arg($key, $query='') {
if ( is_array($key) ) { // removing multiple keys
foreach ( (array) $key as $k )
$query = add_query_arg($k, '', $query);
return $query;
}
return add_query_arg($key, '', $query);
}
function add_magic_quotes($array) {
global $wpdb;
foreach ($array as $k => $v) {
if ( is_array($v) ) {
$array[$k] = add_magic_quotes($v);
} else {
$array[$k] = $wpdb->escape($v);
}
}
return $array;
}
function wp_remote_fopen( $uri ) {
if ( ini_get('allow_url_fopen') ) {
$fp = fopen( $uri, 'r' );
if ( !$fp )
return false;
$linea = '';
while( $remote_read = fread($fp, 4096) )
$linea .= $remote_read;
fclose($fp);
return $linea;
} else if ( function_exists('curl_init') ) {
$handle = curl_init();
curl_setopt ($handle, CURLOPT_URL, $uri);
curl_setopt ($handle, CURLOPT_CONNECTTIMEOUT, 1);
curl_setopt ($handle, CURLOPT_RETURNTRANSFER, 1);
$buffer = curl_exec($handle);
curl_close($handle);
return $buffer;
} else {
return false;
}
}
function wp($query_vars = '') {
global $wp;
$wp->main($query_vars);
}
function status_header( $header ) {
if ( 200 == $header )
$text = 'OK';
elseif ( 301 == $header )
$text = 'Moved Permanently';
elseif ( 302 == $header )
$text = 'Moved Temporarily';
elseif ( 304 == $header )
$text = 'Not Modified';
elseif ( 404 == $header )
$text = 'Not Found';
elseif ( 410 == $header )
$text = 'Gone';
@header("HTTP/1.1 $header $text");
@header("Status: $header $text");
}
function nocache_headers() {
@ header('Expires: Wed, 11 Jan 1984 05:00:00 GMT');
@ header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
@ header('Cache-Control: no-cache, must-revalidate, max-age=0');
@ header('Pragma: no-cache');
}
function get_num_queries() {
global $wpdb;
return $wpdb->num_queries;
}
function privacy_ping_filter( $sites ) {
if ( '0' != get_option('blog_public') )
return $sites;
else
return '';
}
function bool_from_yn($yn) {
if ($yn == 'Y') return 1;
return 0;
}
function do_feed() {
$feed = get_query_var('feed');
// Remove the pad, if present.
$feed = preg_replace('/^_+/', '', $feed);
if ($feed == '' || $feed == 'feed')
$feed = 'rss2';
$for_comments = false;
if ( is_single() || (get_query_var('withcomments') == 1) ) {
$feed = 'rss2';
$for_comments = true;
}
$hook = 'do_feed_' . $feed;
do_action($hook, $for_comments);
}
function do_feed_rdf() {
load_template(ABSPATH . 'wp-rdf.php');
}
function do_feed_rss() {
load_template(ABSPATH . 'wp-rss.php');
}
function do_feed_rss2($for_comments) {
if ( $for_comments ) {
load_template(ABSPATH . 'wp-commentsrss2.php');
} else {
load_template(ABSPATH . 'wp-rss2.php');
}
}
function do_feed_atom() {
load_template(ABSPATH . 'wp-atom.php');
}
function do_robots() {
do_action('do_robots');
if ( '0' == get_option('blog_public') ) {
echo "User-agent: *\n";
echo "Disallow: /\n";
} else {
echo "User-agent: *\n";
echo "Disallow:\n";
}
}
function is_blog_installed() {
global $wpdb;
$wpdb->hide_errors();
$installed = $wpdb->get_var("SELECT option_value FROM $wpdb->options WHERE option_name = 'siteurl'");
$wpdb->show_errors();
return $installed;
}
function wp_nonce_url($actionurl, $action = -1) {
return add_query_arg('_wpnonce', wp_create_nonce($action), $actionurl);
}
function wp_nonce_field($action = -1) {
echo '<input type="hidden" name="_wpnonce" value="' . wp_create_nonce($action) . '" />';
}
function wp_mkdir_p($target) {
// from php.net/mkdir user contributed notes
if (file_exists($target)) {
if (! @ is_dir($target))
return false;
else
return true;
}
// Attempting to create the directory may clutter up our display.
if (@ mkdir($target)) {
$stat = @ stat(dirname($target));
$dir_perms = $stat['mode'] & 0007777; // Get the permission bits.
@ chmod($target, $dir_perms);
return true;
} else {
if ( is_dir(dirname($target)) )
return false;
}
// If the above failed, attempt to create the parent node, then try again.
if (wp_mkdir_p(dirname($target)))
return wp_mkdir_p($target);
return false;
}
// Returns an array containing the current upload directory's path and url, or an error message.
function wp_upload_dir() {
$siteurl = get_settings('siteurl');
//prepend ABSPATH to $dir and $siteurl to $url if they're not already there
$path = str_replace(ABSPATH, '', trim(get_settings('upload_path')));
$dir = ABSPATH . $path;
$url = trailingslashit($siteurl) . $path;
if ( $dir == ABSPATH ) { //the option was empty
$dir = ABSPATH . 'wp-content/uploads';
}
if ( defined('UPLOADS') ) {
$dir = ABSPATH . UPLOADS;
$url = trailingslashit($siteurl) . UPLOADS;
}
if ( get_settings('uploads_use_yearmonth_folders')) {
// Generate the yearly and monthly dirs
$time = current_time( 'mysql' );
$y = substr( $time, 0, 4 );
$m = substr( $time, 5, 2 );
$dir = $dir . "/$y/$m";
$url = $url . "/$y/$m";
}
// Make sure we have an uploads dir
if ( ! wp_mkdir_p( $dir ) ) {
$message = sprintf(__('Unable to create directory %s. Is its parent directory writable by the server?'), $dir);
return array('error' => $message);
}
$uploads = array('path' => $dir, 'url' => $url, 'error' => false);
return apply_filters('upload_dir', $uploads);
}
function wp_upload_bits($name, $type, $bits) {
if ( empty($name) )
return array('error' => __("Empty filename"));
$wp_filetype = wp_check_filetype($name);
if ( !$wp_filetype['ext'] )
return array('error' => __("Invalid file type"));
$upload = wp_upload_dir();
if ( $upload['error'] !== false )
return $upload;
$number = '';
$filename = $name;
$path_parts = pathinfo($filename);
$ext = $path_parts['extension'];
if ( empty($ext) )
$ext = '';
else
$ext = ".$ext";
while ( file_exists($upload['path'] . "/$filename") ) {
if ( '' == "$number$ext" )
$filename = $filename . ++$number . $ext;
else
$filename = str_replace("$number$ext", ++$number . $ext, $filename);
}
$new_file = $upload['path'] . "/$filename";
if ( ! wp_mkdir_p( dirname($new_file) ) ) {
$message = sprintf(__('Unable to create directory %s. Is its parent directory writable by the server?'), dirname($new_file));
return array('error' => $message);
}
$ifp = @ fopen($new_file, 'wb');
if ( ! $ifp )
return array('error' => "Could not write file $new_file.");
$success = @ fwrite($ifp, $bits);
fclose($ifp);
// Set correct file permissions
$stat = @ stat(dirname($new_file));
$perms = $stat['mode'] & 0007777;
$perms = $perms & 0000666;
@ chmod($new_file, $perms);
// Compute the URL
$url = $upload['url'] . "/$filename";
return array('file' => $new_file, 'url' => $url, 'error' => false);
}
function wp_check_filetype($filename, $mimes = null) {
// Accepted MIME types are set here as PCRE unless provided.
$mimes = is_array($mimes) ? $mimes : apply_filters('upload_mimes', array (
'jpg|jpeg|jpe' => 'image/jpeg',
'gif' => 'image/gif',
'png' => 'image/png',
'bmp' => 'image/bmp',
'tif|tiff' => 'image/tiff',
'ico' => 'image/x-icon',
'asf|asx|wax|wmv|wmx' => 'video/asf',
'avi' => 'video/avi',
'mov|qt' => 'video/quicktime',
'mpeg|mpg|mpe' => 'video/mpeg',
'txt|c|cc|h' => 'text/plain',
'rtx' => 'text/richtext',
'css' => 'text/css',
'htm|html' => 'text/html',
'mp3|mp4' => 'audio/mpeg',
'ra|ram' => 'audio/x-realaudio',
'wav' => 'audio/wav',
'ogg' => 'audio/ogg',
'mid|midi' => 'audio/midi',
'wma' => 'audio/wma',
'rtf' => 'application/rtf',
'js' => 'application/javascript',
'pdf' => 'application/pdf',
'doc' => 'application/msword',
'pot|pps|ppt' => 'application/vnd.ms-powerpoint',
'wri' => 'application/vnd.ms-write',
'xla|xls|xlt|xlw' => 'application/vnd.ms-excel',
'mdb' => 'application/vnd.ms-access',
'mpp' => 'application/vnd.ms-project',
'swf' => 'application/x-shockwave-flash',
'class' => 'application/java',
'tar' => 'application/x-tar',
'zip' => 'application/zip',
'gz|gzip' => 'application/x-gzip',
'exe' => 'application/x-msdownload'
));
$type = false;
$ext = false;
foreach ($mimes as $ext_preg => $mime_match) {
$ext_preg = '!\.(' . $ext_preg . ')$!i';
if ( preg_match($ext_preg, $filename, $ext_matches) ) {
$type = $mime_match;
$ext = $ext_matches[1];
break;
}
}
return compact('ext', 'type');
}
function do_trackbacks($post_id) {
global $wpdb;
$post = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID = $post_id");
$to_ping = get_to_ping($post_id);
$pinged = get_pung($post_id);
if ( empty($to_ping) ) {
$wpdb->query("UPDATE $wpdb->posts SET to_ping = '' WHERE ID = '$post_id'");
return;
}
if (empty($post->post_excerpt))
$excerpt = apply_filters('the_content', $post->post_content);
else
$excerpt = apply_filters('the_excerpt', $post->post_excerpt);
$excerpt = str_replace(']]>', ']]&gt;', $excerpt);
$excerpt = strip_tags($excerpt);
if ( function_exists('mb_strcut') ) // For international trackbacks
$excerpt = mb_strcut($excerpt, 0, 252, get_settings('blog_charset')) . '...';
else
$excerpt = substr($excerpt, 0, 252) . '...';
$post_title = apply_filters('the_title', $post->post_title);
$post_title = strip_tags($post_title);
if ($to_ping) : foreach ($to_ping as $tb_ping) :
$tb_ping = trim($tb_ping);
if ( !in_array($tb_ping, $pinged) ) {
trackback($tb_ping, $post_title, $excerpt, $post_id);
$pinged[] = $tb_ping;
} else {
$wpdb->query("UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, '$tb_ping', '')) WHERE ID = '$post_id'");
}
endforeach; endif;
}
function do_all_pings() {
global $wpdb;
// Do pingbacks
while ($ping = $wpdb->get_row("SELECT * FROM {$wpdb->posts}, {$wpdb->postmeta} WHERE {$wpdb->posts}.ID = {$wpdb->postmeta}.post_id AND {$wpdb->postmeta}.meta_key = '_pingme' LIMIT 1")) {
$wpdb->query("DELETE FROM {$wpdb->postmeta} WHERE post_id = {$ping->ID} AND meta_key = '_pingme';");
pingback($ping->post_content, $ping->ID);
}
// Do Enclosures
while ($enclosure = $wpdb->get_row("SELECT * FROM {$wpdb->posts}, {$wpdb->postmeta} WHERE {$wpdb->posts}.ID = {$wpdb->postmeta}.post_id AND {$wpdb->postmeta}.meta_key = '_encloseme' LIMIT 1")) {
$wpdb->query("DELETE FROM {$wpdb->postmeta} WHERE post_id = {$enclosure->ID} AND meta_key = '_encloseme';");
do_enclose($enclosure->post_content, $enclosure->ID);
}
// Do Trackbacks
$trackbacks = $wpdb->get_results("SELECT ID FROM $wpdb->posts WHERE CHAR_LENGTH(TRIM(to_ping)) > 7 AND post_status = 'publish'");
if ( is_array($trackbacks) ) {
foreach ( $trackbacks as $trackback ) {
do_trackbacks($trackback->ID);
}
}
//Do Update Services/Generic Pings
generic_ping();
}
function wp_proxy_check($ipnum) {
if ( get_option('open_proxy_check') && isset($ipnum) ) {
$rev_ip = implode( '.', array_reverse( explode( '.', $ipnum ) ) );
$lookup = $rev_ip . '.opm.blitzed.org.';
if ( $lookup != gethostbyname( $lookup ) )
return true;
}
return false;
}
?>
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