WordPress/wp-includes/functions.php

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<?php
$curpath = dirname(__FILE__).'/';
require($curpath . 'functions-formatting.php');
if (!function_exists('_')) {
function _($string) {
return $string;
}
}
if (!function_exists('floatval')) {
function floatval($string) {
return ((float) $string);
}
}
function popuplinks($text) {
// Comment text in popup windows should be filtered through this.
// Right now it's a moderately dumb function, ideally it would detect whether
// a target or rel attribute was already there and adjust its actions accordingly.
$text = preg_replace('/<a (.+?)>/i', "<a $1 target='_blank' rel='external'>", $text);
return $text;
}
function mysql2date($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) {
$time_difference = get_settings('time_difference');
switch ($type) {
case 'mysql':
return gmdate('Y-m-d H:i:s');
break;
case 'timestamp':
return time();
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 > $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 $tableposts, $cache_lastpostdate, $use_cache, $pagenow, $wpdb;
$add_seconds_blog = get_settings('gmt_offset') * 3600;
$add_seconds_server = date('Z');
$now = gmdate('Y-m-d H:i:s');
if ((!isset($cache_lastpostdate[$timezone])) OR (!$use_cache)) {
switch(strtolower($timezone)) {
case 'gmt':
$lastpostdate = $wpdb->get_var("SELECT post_date FROM $tableposts WHERE post_date <= '$now' AND post_status = 'publish' ORDER BY post_date DESC LIMIT 1");
break;
case 'blog':
$lastpostdate = $wpdb->get_var("SELECT DATE_ADD(post_date, INTERVAL '$add_seconds_blog' SECOND) FROM $tableposts WHERE post_date <= '$now' AND post_status = 'publish' ORDER BY post_date DESC LIMIT 1");
break;
case 'server':
$lastpostdate = $wpdb->get_var("SELECT DATE_ADD(post_date, INTERVAL '$add_seconds_server' SECOND) FROM $tableposts WHERE post_date <= '$now' AND post_status = 'publish' ORDER BY post_date DESC LIMIT 1");
break;
}
$cache_lastpostdate[$timezone] = $lastpostdate;
} else {
$lastpostdate = $cache_lastpostdate[$timezone];
}
return $lastpostdate;
}
function get_lastpostmodified($timezone = 'server') {
global $tableposts, $cache_lastpostmodified, $use_cache, $pagenow, $wpdb;
$add_seconds_blog = get_settings('gmt_offset') * 3600;
$add_seconds_server = date('Z');
$now = gmdate('Y-m-d H:i:s');
if ((!isset($cache_lastpostmodified[$timezone])) OR (!$use_cache)) {
switch($timezone) {
case 'gmt':
$lastpostmodified = $wpdb->get_var("SELECT post_modified FROM $tableposts WHERE post_modified <= '$now' AND post_status = 'publish' ORDER BY post_modified DESC LIMIT 1");
break;
case 'blog':
$lastpostmodified = $wpdb->get_var("SELECT DATE_ADD(post_modified, INTERVAL '$add_seconds_blog' SECOND) FROM $tableposts WHERE post_modified <= '$now' AND post_status = 'publish' ORDER BY post_modified DESC LIMIT 1");
break;
case 'server':
$lastpostmodified = $wpdb->get_var("SELECT DATE_ADD(post_modified, INTERVAL '$add_seconds_server' SECOND) FROM $tableposts WHERE post_modified <= '$now' AND post_status = 'publish' ORDER BY post_modified DESC LIMIT 1");
break;
}
$lastpostdate = get_lastpostdate($timezone);
if ($lastpostdate > $lastpostmodified) {
$lastpostmodified = $lastpostdate;
}
$cache_lastpostmodified[$timezone] = $lastpostmodified;
} else {
$lastpostmodified = $cache_lastpostmodified[$timezone];
}
return $lastpostmodified;
}
function user_pass_ok($user_login,$user_pass) {
global $cache_userdata,$use_cache;
if ((empty($cache_userdata[$user_login])) OR (!$use_cache)) {
$userdata = get_userdatabylogin($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 $HTTP_COOKIE_VARS, $user_login, $userdata, $user_level, $user_ID, $user_nickname, $user_email, $user_url, $user_pass_md5, $cookiehash;
// *** retrieving user's data from cookies and db - no spoofing
$user_login = $HTTP_COOKIE_VARS['wordpressuser_'.$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, $use_cache, $tableusers;
if ((empty($cache_userdata[$userid])) || (!$use_cache)) {
$user = $wpdb->get_row("SELECT * FROM $tableusers WHERE ID = '$userid'");
$user->user_nickname = stripslashes($user->user_nickname);
$user->user_firstname = stripslashes($user->user_firstname);
$user->user_lastname = stripslashes($user->user_lastname);
$user->user_firstname = stripslashes($user->user_firstname);
$user->user_lastname = stripslashes($user->user_lastname);
$user->user_description = stripslashes($user->user_description);
$cache_userdata[$userid] = $user;
} else {
$user = $cache_userdata[$userid];
}
return $user;
}
function get_userdata2($userid) { // for team-listing
global $tableusers, $post;
$user_data['ID'] = $userid;
$user_data['user_login'] = $post->user_login;
$user_data['user_firstname'] = $post->user_firstname;
$user_data['user_lastname'] = $post->user_lastname;
$user_data['user_nickname'] = $post->user_nickname;
$user_data['user_level'] = $post->user_level;
$user_data['user_email'] = $post->user_email;
$user_data['user_url'] = $post->user_url;
return $user_data;
}
function get_userdatabylogin($user_login) {
global $tableusers, $cache_userdata, $use_cache, $wpdb;
if ((empty($cache_userdata["$user_login"])) OR (!$use_cache)) {
$user = $wpdb->get_row("SELECT * FROM $tableusers WHERE user_login = '$user_login'");
$cache_userdata["$user_login"] = $user;
} else {
$user = $cache_userdata["$user_login"];
}
return $user;
}
function get_userid($user_login) {
global $tableusers, $cache_userdata, $use_cache, $wpdb;
if ((empty($cache_userdata["$user_login"])) OR (!$use_cache)) {
$user_id = $wpdb->get_var("SELECT ID FROM $tableusers WHERE user_login = '$user_login'");
$cache_userdata["$user_login"] = $user_id;
} else {
$user_id = $cache_userdata["$user_login"];
}
return $user_id;
}
function get_usernumposts($userid) {
global $tableposts, $tablecomments, $wpdb;
return $wpdb->get_var("SELECT COUNT(*) FROM $tableposts WHERE post_author = '$userid'");
}
// examine a url (supposedly from this blog) and try to
// determine the post ID it represents.
function url_to_postid($url = '') {
global $wpdb, $tableposts;
$siteurl = get_settings('siteurl');
// 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%',
'%postname%',
'%post_id%'
);
$rewritereplace = array(
'([0-9]{4})?',
'([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 ($postname) $where .= " AND post_name = '" . $wpdb->escape($postname) . "' ";
// Run the query to get the post ID:
$id = intval($wpdb->get_var("SELECT ID FROM $tableposts WHERE 1 = 1 " . $where));
return $id;
}
/* Options functions */
function get_settings($setting) {
global $wpdb, $cache_settings, $use_cache;
if (strstr($_SERVER['REQUEST_URI'], 'install.php')) {
return false;
}
// until we switch to using 'gmt_offset' everywhere
$setting = str_replace('time_difference', 'gmt_offset', $setting);
if ((empty($cache_settings)) OR (!$use_cache)) {
$settings = get_alloptions();
$cache_settings = $settings;
} else {
$settings = $cache_settings;
}
if (!isset($settings->$setting)) {
return false;
} else {
return stripslashes($settings->$setting);
}
}
function get_alloptions() {
global $tableoptions, $wpdb;
$options = $wpdb->get_results("SELECT option_name, option_value FROM $tableoptions");
if ($options) {
foreach ($options as $option) {
// "When trying to design a foolproof system,
// never underestimate the ingenuity of the fools :)"
if ('siteurl' == $option->option_name) $option->option_value = preg_replace('|/+$|', '', $option->option_value);
$all_options->{$option->option_name} = $option->option_value;
}
}
return $all_options;
}
function update_option($option_name, $newvalue) {
global $wpdb, $tableoptions;
// No validation at the moment
$wpdb->query("UPDATE $tableoptions SET option_value = '$newvalue' WHERE option_name = '$option_name'");
}
function add_option() {
// Adds an option if it doesn't already exist
global $wpdb, $tableoptions;
// TODO
}
function get_postdata($postid) {
global $post, $tableusers, $tablecategories, $tableposts, $tablecomments, $wpdb;
$post = $wpdb->get_row("SELECT * FROM $tableposts WHERE ID = '$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,
'Lat' => $post->post_lat,
'Lon' => $post->post_lon,
'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 $postdata;
}
function get_postdata2($postid=0) { // less flexible, but saves DB queries
global $post;
$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,
'Lat' => $post->post_lat,
'Lon' => $post->post_lon,
'post_status' => $post->post_status,
'comment_status' => $post->comment_status,
'ping_status' => $post->ping_status,
'post_password' => $post->post_password
);
return $postdata;
}
function get_commentdata($comment_ID,$no_cache=0,$include_unapproved=false) { // less flexible, but saves DB queries
global $postc,$id,$commentdata,$tablecomments, $wpdb;
if ($no_cache) {
$query = "SELECT * FROM $tablecomments WHERE comment_ID = '$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;
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 $tablecategories,$cache_catnames,$use_cache, $wpdb;
if ((!$cache_catnames) || (!$use_cache)) {
$results = $wpdb->get_results("SELECT * FROM $tablecategories") or die('Oops, couldn\'t query the db for categories.');
foreach ($results as $post) {
$cache_catnames[$post->cat_ID] = $post->cat_name;
}
}
$cat_name = $cache_catnames[$cat_ID];
return $cat_name;
}
function profile($user_login) {
global $user_data;
echo "<a href='profile.php?user=".$user_data->user_login."' onclick=\"javascript:window.open('profile.php?user=".$user_data->user_login."','Profile','toolbar=0,status=1,location=0,directories=0,menuBar=1,scrollbars=1,resizable=0,width=480,height=320,left=100,top=100'); return false;\">$user_login</a>";
}
function touch_time($edit = 1) {
global $month, $postdata, $time_difference;
// echo $postdata['Date'];
if ('draft' == $postdata['post_status']) {
$checked = 'checked="checked" ';
$edit = false;
} else {
$checked = ' ';
}
echo '<p><input type="checkbox" class="checkbox" name="edit_date" value="1" id="timestamp" '.$checked.'/> <label for="timestamp">Edit timestamp</label> <a href="http://wordpress.org/docs/reference/post/#edit_timestamp" title="Help on changing the timestamp">?</a><br />';
$time_adj = time() + ($time_difference * 3600);
$post_date_localtime = get_date_from_gmt($postdata['Date']);
$jj = ($edit) ? mysql2date('d', $post_date_localtime) : date('d', $time_adj);
$mm = ($edit) ? mysql2date('m', $post_date_localtime) : date('m', $time_adj);
$aa = ($edit) ? mysql2date('Y', $post_date_localtime) : date('Y', $time_adj);
$hh = ($edit) ? mysql2date('H', $post_date_localtime) : date('H', $time_adj);
$mn = ($edit) ? mysql2date('i', $post_date_localtime) : date('i', $time_adj);
$ss = ($edit) ? mysql2date('s', $post_date_localtime) : date('s', $time_adj);
echo '<input type="text" name="jj" value="'.$jj.'" size="2" maxlength="2" />'."\n";
echo "<select name=\"mm\">\n";
for ($i=1; $i < 13; $i=$i+1) {
echo "\t\t\t<option value=\"$i\"";
if ($i == $mm)
echo " selected='selected'";
if ($i < 10) {
$ii = "0".$i;
} else {
$ii = "$i";
}
echo ">".$month["$ii"]."</option>\n";
} ?>
</select>
<input type="text" name="aa" value="<?php echo $aa ?>" size="4" maxlength="5" /> @
<input type="text" name="hh" value="<?php echo $hh ?>" size="2" maxlength="2" /> :
<input type="text" name="mn" value="<?php echo $mn ?>" size="2" maxlength="2" /> :
<input type="text" name="ss" value="<?php echo $ss ?>" size="2" maxlength="2" /> </p>
<?php
}
function gzip_compression() {
global $gzip_compressed;
if (!$gzip_compressed) {
$phpver = phpversion(); //start gzip compression
if($phpver >= "4.0.4pl1") {
if(extension_loaded("zlib")) {
ob_start("ob_gzhandler");
}
} else if($phpver > "4.0") {
if(strstr($HTTP_SERVER_VARS['HTTP_ACCEPT_ENCODING'], 'gzip')) {
if(extension_loaded("zlib")) {
$do_gzip_compress = TRUE;
ob_start();
ob_implicit_flush(0);
header("Content-Encoding: gzip");
}
}
} //end gzip compression - that piece of script courtesy of the phpBB dev team
$gzip_compressed=1;
}
}
function alert_confirm($msg) { // asks a question - if the user clicks Cancel then it brings them back one page
?>
<script language="JavaScript">
<!--
if (!confirm("<?php echo $msg ?>")) {
history.back();
}
//-->
</script>
<?php
}
function redirect_js($url,$title="...") {
?>
<script language="JavaScript">
<!--
function redirect() {
window.location = "<?php echo $url; ?>";
}
setTimeout("redirect();", 100);
//-->
</script>
<p>Redirecting you : <b><?php echo $title; ?></b><br />
<br />
If nothing happens, click <a href="<?php echo $url; ?>">here</a>.</p>
<?php
exit();
}
// functions to count the page generation time (from phpBB2)
// ( or just any time between timer_start() and timer_stop() )
function timer_start() {
global $timestart;
$mtime = microtime();
$mtime = explode(" ",$mtime);
$mtime = $mtime[1] + $mtime[0];
$timestart = $mtime;
return true;
}
function timer_stop($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 $timetotal;
}
// pings Weblogs.com
function pingWeblogs($blog_ID = 1) {
// original function by Dries Buytaert for Drupal
global $use_weblogsping, $blogname;
if ((!(($blogname=="my weblog") && (get_settings('siteurl')=="http://example.com") && (get_settings('blogfilename') == "wp.php"))) && (!preg_match("/localhost\//", get_settings('siteurl'))) && ($use_weblogsping)) {
$client = new xmlrpc_client("/RPC2", "rpc.weblogs.com", 80);
$message = new xmlrpcmsg("weblogUpdates.ping", array(new xmlrpcval($blogname),
new xmlrpcval(get_settings('siteurl') . '/' . get_settings('blogfilename')
)));
$result = $client->send($message);
if (!$result || $result->faultCode()) {
return false;
}
return true;
} else {
return false;
}
}
// pings Weblogs.com/rssUpdates
function pingWeblogsRss($blog_ID = 1, $rss_url) {
global $use_weblogsrssping, $blogname, $rss_url;
if ($blogname != 'my weblog' && $rss_url != 'http://example.com/b2rdf.php' && $use_weblogsrssping) {
$client = new xmlrpc_client('/RPC2', 'rssrpc.weblogs.com', 80);
$message = new xmlrpcmsg('rssUpdate', array(new xmlrpcval($blogname), new xmlrpcval($rss_url)));
$result = $client->send($message);
if (!$result || $result->faultCode()) {
return false;
}
return true;
} else {
return false;
}
}
// pings Caf<61>Log.com
function pingCafelog($cafelogID,$title='',$p='') {
global $use_cafelogping, $blogname;
if ((!(($blogname=="my weblog") && (get_settings('siteurl') == "http://example.com") && (get_settings('blogfilename')=="wp.php"))) && (!preg_match("/localhost\//", get_settings('siteurl'))) && ($use_cafelogping) && ($cafelogID != '')) {
$client = new xmlrpc_client("/xmlrpc.php", "cafelog.tidakada.com", 80);
$message = new xmlrpcmsg("b2.ping", array(new xmlrpcval($cafelogID), new xmlrpcval($title), new xmlrpcval($p)));
$result = $client->send($message);
if (!$result || $result->faultCode()) {
return false;
}
return true;
} else {
return false;
}
}
// pings Blo.gs
function pingBlogs($blog_ID="1") {
global $use_blodotgsping, $blodotgsping_url, $use_rss, $blogname;
if ((!(($blogname=='my weblog') && (get_settings('siteurl')=='http://example.com') && (get_settings('blogfilename')=='wp.php'))) && (!preg_match('/localhost\//',get_settings('siteurl'))) && ($use_blodotgsping)) {
$url = ($blodotgsping_url == 'http://example.com') ? get_settings('siteurl').'/'.get_settings('blogfilename') : $blodotgsping_url;
$client = new xmlrpc_client('/', 'ping.blo.gs', 80);
if ($use_rss) {
$message = new xmlrpcmsg('weblogUpdates.extendedPing', array(new xmlrpcval($blogname), new xmlrpcval($url), new xmlrpcval($url), new xmlrpcval(get_settings('siteurl').'/b2rss.xml')));
} else {
$message = new xmlrpcmsg('weblogUpdates.ping', array(new xmlrpcval($blogname), new xmlrpcval($url)));
}
$result = $client->send($message);
if (!$result || $result->faultCode()) {
return false;
}
return true;
} else {
return false;
}
}
// Send a Trackback
function trackback($trackback_url, $title, $excerpt, $ID) {
global $blogname, $wpdb, $tableposts;
$title = urlencode(stripslashes($title));
$excerpt = urlencode(stripslashes($excerpt));
$blog_name = urlencode(stripslashes($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']." HTTP/1.0\r\n";
$http_request .= 'Host: '.$trackback_url['host']."\r\n";
$http_request .= 'Content-Type: application/x-www-form-urlencoded'."\r\n";
$http_request .= 'Content-Length: '.strlen($query_string)."\r\n";
$http_request .= "\r\n";
$http_request .= $query_string;
$fs = @fsockopen($trackback_url['host'], 80);
@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 $tableposts SET pinged = CONCAT(pinged, '\n', '$tb_url') WHERE ID = '$ID'");
$wpdb->query("UPDATE $tableposts SET to_ping = REPLACE(to_ping, '$tb_url', '') WHERE ID = '$ID'");
return $result;
}
// trackback - reply
function trackback_response($error = 0, $error_message = '') {
if ($error) {
echo '<?xml version="1.0" encoding="iso-8859-1"?'.">\n";
echo "<response>\n";
echo "<error>1</error>\n";
echo "<message>$error_message</message>\n";
echo "</response>";
} else {
echo '<?xml version="1.0" encoding="iso-8859-1"?'.">\n";
echo "<response>\n";
echo "<error>0</error>\n";
echo "</response>";
}
die();
}
function make_url_footnote($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('siteurl') . $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 = $matchcat[0];
$post_category = preg_replace('/<category>/si', '', $post_category);
$post_category = preg_replace('/<\/category>/si', '', $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($fp);
}
}
function pingback($content, $post_ID) {
// original code by Mort (http://mort.mine.nu:8080)
global $wp_version;
$log = debug_fopen('./pingback.log', 'a');
$post_links = array();
debug_fwrite($log, 'BEGIN '.time()."\n");
// Variables
$ltrs = '\w';
$gunk = '/#~:.?+=&%@!\-';
$punc = '.:?\-';
$any = $ltrs.$gunk.$punc;
$pingback_str_dquote = 'rel="pingback"';
$pingback_str_squote = 'rel=\'pingback\'';
$x_pingback_str = 'x-pingback: ';
$pingback_href_original_pos = 27;
// 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){
$test = parse_url($link_test);
if (isset($test['query'])) {
$post_links[] = $link_test;
} elseif(($test['path'] != '/') && ($test['path'] != '')) {
$post_links[] = $link_test;
}
}
foreach ($post_links as $pagelinkedto){
debug_fwrite($log, 'Processing -- '.$pagelinkedto."\n\n");
$bits = parse_url($pagelinkedto);
if (!isset($bits['host'])) {
debug_fwrite($log, 'Couldn\'t find a hostname for '.$pagelinkedto."\n\n");
continue;
}
$host = $bits['host'];
$path = isset($bits['path']) ? $bits['path'] : '';
if (isset($bits['query'])) {
$path .= '?'.$bits['query'];
}
if (!$path) {
$path = '/';
}
$port = isset($bits['port']) ? $bits['port'] : 80;
// Try to connect to the server at $host
$fp = fsockopen($host, $port, $errno, $errstr, 30);
if (!$fp) {
debug_fwrite($log, 'Couldn\'t open a connection to '.$host."\n\n");
continue;
}
// 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);
// Start receiving headers and content
$contents = '';
$headers = '';
$gettingHeaders = true;
$found_pingback_server = 0;
while (!feof($fp)) {
$line = fgets($fp, 4096);
if (trim($line) == '') {
$gettingHeaders = false;
}
if (!$gettingHeaders) {
$contents .= trim($line)."\n";
$pingback_link_offset_dquote = strpos($contents, $pingback_str_dquote);
$pingback_link_offset_squote = strpos($contents, $pingback_str_squote);
} else {
$headers .= trim($line)."\n";
$x_pingback_header_offset = strpos(strtolower($headers), $x_pingback_str);
}
if ($x_pingback_header_offset) {
preg_match('#x-pingback: (.+)#is', $headers, $matches);
$pingback_server_url = trim($matches[1]);
debug_fwrite($log, "Pingback server found from X-Pingback header @ $pingback_server_url\n");
$found_pingback_server = 1;
break;
}
if ($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, $pingback_server_url_len);
debug_fwrite($log, "Pingback server found from Pingback <link /> tag @ $pingback_server_url\n");
$found_pingback_server = 1;
break;
}
}
if (!$found_pingback_server) {
debug_fwrite($log, "Pingback server not found\n\n*************************\n\n");
@fclose($fp);
} else {
debug_fwrite($log,"\n\nPingback server data\n");
// Assuming there's a "http://" bit, let's get rid of it
$host_clear = substr($pingback_server_url, 7);
// the trailing slash marks the end of the server name
$host_end = strpos($host_clear, '/');
// Another clear cut
$host_len = $host_end-$host_start;
$host = substr($host_clear, 0, $host_len);
debug_fwrite($log, 'host: '.$host."\n");
// If we got the server name right, the rest of the string is the server path
$path = substr($host_clear,$host_end);
debug_fwrite($log, 'path: '.$path."\n\n");
// Now, the RPC call
$method = 'pingback.ping';
debug_fwrite($log, 'Page Linked To: '.$pagelinkedto."\n");
debug_fwrite($log, 'Page Linked From: ');
$pagelinkedfrom = get_permalink($post_ID);
debug_fwrite($log, $pagelinkedfrom."\n");
$client = new xmlrpc_client($path, $host, 80);
$message = new xmlrpcmsg($method, array(new xmlrpcval($pagelinkedfrom), new xmlrpcval($pagelinkedto)));
$result = $client->send($message);
if ($result){
if (!$result->value()){
debug_fwrite($log, $result->faultCode().' -- '.$result->faultString());
} else {
$value = xmlrpc_decode($result->value());
if (is_array($value)) {
$value_arr = '';
foreach($value as $blah) {
$value_arr .= $blah.' |||| ';
}
debug_fwrite($log, $value_arr);
} else {
debug_fwrite($log, $value);
}
}
}
@fclose($fp);
}
}
debug_fwrite($log, "\nEND: ".time()."\n****************************\n\r");
debug_fclose($log);
}
function doGeoUrlHeader($posts) {
global $use_default_geourl,$default_geourl_lat,$default_geourl_lon;
if (count($posts) == 1) {
// there's only one result see if it has a geo code
$row = $posts[0];
$lat = $row->post_lat;
$lon = $row->post_lon;
$title = $row->post_title;
if(($lon != null) && ($lat != null) ) {
echo "<meta name=\"ICBM\" content=\"".$lat.", ".$lon."\" />\n";
echo "<meta name=\"DC.title\" content=\"".convert_chars(strip_tags(get_bloginfo("name")),"unicode")." - ".$title."\" />\n";
echo "<meta name=\"geo.position\" content=\"".$lat.";".$lon."\" />\n";
return;
}
} else {
if($use_default_geourl) {
// send the default here
echo "<meta name=\"ICBM\" content=\"".$default_geourl_lat.", ".$default_geourl_lon."\" />\n";
echo "<meta name=\"DC.title\" content=\"".convert_chars(strip_tags(get_bloginfo("name")),"unicode")."\" />\n";
echo "<meta name=\"geo.position\" content=\"".$default_geourl_lat.";".$default_geourl_lon."\" />\n";
}
}
}
function getRemoteFile($host,$path) {
$fp = fsockopen($host, 80, $errno, $errstr);
if ($fp) {
fputs($fp,"GET $path HTTP/1.0\r\nHost: $host\r\n\r\n");
while ($line = fgets($fp, 4096)) {
$lines[] = $line;
}
fclose($fp);
return $lines;
} else {
return false;
}
}
function pingGeoURL($blog_ID) {
global $blodotgsping_url;
$ourUrl = $blodotgsping_url."/index.php?p=".$blog_ID;
$host="geourl.org";
$path="/ping/?p=".$ourUrl;
getRemoteFile($host,$path);
}
/* 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, $tablecomments;
switch($comment_status) {
case 'hold':
$query = "UPDATE $tablecomments SET comment_approved='0' WHERE comment_ID='$comment_id' LIMIT 1";
break;
case 'approve':
$query = "UPDATE $tablecomments SET comment_approved='1' WHERE comment_ID='$comment_id' LIMIT 1";
break;
case 'delete':
$query = "DELETE FROM $tablecomments WHERE comment_ID='$comment_id' LIMIT 1";
break;
default:
return false;
}
if ($wpdb->query($query)) {
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, $tablecomments;
$result = $wpdb->get_var("SELECT comment_approved FROM $tablecomments WHERE comment_ID='$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, $tablecomments, $tableposts, $tableusers;
global $querystring_start, $querystring_equal, $querystring_separator;
global $blogname, $blog_charset;
$comment = $wpdb->get_row("SELECT * FROM $tablecomments WHERE comment_ID='$comment_id' LIMIT 1");
$post = $wpdb->get_row("SELECT * FROM $tableposts WHERE ID='$comment->comment_post_ID' LIMIT 1");
$user = $wpdb->get_row("SELECT * FROM $tableusers WHERE ID='$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);
$blogname = stripslashes($blogname);
if ('comment' == $comment_type) {
$notify_message = "New comment on your post #$comment->comment_post_ID \"".stripslashes($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";
$notify_message .= "Comment:\r\n".stripslashes($comment->comment_content)."\r\n\r\n";
$notify_message .= "You can see all comments on this post here: \r\n";
$subject = '[' . $blogname . '] Comment: "' .stripslashes($post->post_title).'"';
} elseif ('trackback' == $comment_type) {
$notify_message = "New trackback on your post #$comment_post_ID \"".stripslashes($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";
$notify_message .= "Excerpt: \n".stripslashes($comment->comment_content)."\r\n\r\n";
$notify_message .= "You can see all trackbacks on this post here: \r\n";
$subject = '[' . $blogname . '] Trackback: "' .stripslashes($post->post_title).'"';
} elseif ('pingback' == $comment_type) {
$notify_message = "New pingback on your post #$comment_post_ID \"".stripslashes($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 = '[' . $blogname . '] Pingback: "' .stripslashes($post->post_title).'"';
}
$notify_message .= get_permalink($comment->comment_post_ID) . '#comments';
if ('' == $comment->comment_author_email || '' == $comment->comment_author) {
$from = "From: \"$blogname\" <wordpress@" . $HTTP_SERVER_VARS['SERVER_NAME'] . '>';
} else {
$from = 'From: "' . stripslashes($comment->comment_author) . "\" <$comment->comment_author_email>";
}
$message_headers = "MIME-Version: 1.0\r\n"
. "$from\r\n"
. "Content-Type: text/plain; charset=\"$blog_charset\"\r\n";
@mail($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, $tablecomments, $tableposts, $tableusers;
global $querystring_start, $querystring_equal, $querystring_separator;
global $blogname, $blog_charset;
$comment = $wpdb->get_row("SELECT * FROM $tablecomments WHERE comment_ID='$comment_id' LIMIT 1");
$post = $wpdb->get_row("SELECT * FROM $tableposts WHERE ID='$comment->comment_post_ID' LIMIT 1");
$user = $wpdb->get_row("SELECT * FROM $tableusers WHERE ID='$post->post_author' LIMIT 1");
$comment_author_domain = gethostbyaddr($comment->comment_author_IP);
$comments_waiting = $wpdb->get_var("SELECT count(comment_ID) FROM $tablecomments WHERE comment_approved = '0'");
$notify_message = "A new comment on the post #$comment->comment_post_ID \"".stripslashes($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";
$notify_message .= "Comment:\r\n".stripslashes($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";
$subject = '[' . stripslashes($blogname) . '] Please approve: "' .stripslashes($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=\"$blog_charset\"\r\n";
@mail($admin_email, $subject, $notify_message, $message_headers);
return true;
}
function start_wp() {
global $post, $id, $postdata, $authordata, $day, $preview, $page, $pages, $multipage, $more, $numpages;
global $preview_userid,$preview_date,$preview_content,$preview_title,$preview_category,$preview_notify,$preview_make_clickable,$preview_autobr;
global $pagenow;
global $HTTP_GET_VARS;
if (!$preview) {
$id = $post->ID;
} else {
$id = 0;
$postdata = array (
'ID' => 0,
'Author_ID' => $HTTP_GET_VARS['preview_userid'],
'Date' => $HTTP_GET_VARS['preview_date'],
'Content' => $HTTP_GET_VARS['preview_content'],
'Excerpt' => $HTTP_GET_VARS['preview_excerpt'],
'Title' => $HTTP_GET_VARS['preview_title'],
'Category' => $HTTP_GET_VARS['preview_category'],
'Notify' => 1
);
}
$authordata = get_userdata($post->post_author);
$post->post_date_local = get_date_from_gmt($post->post_date);
# $post->post_date = get_date_from_gmt($post->post_date);
$day = mysql2date('d.m.y', $post->post_date_local);
$currentmonth = mysql2date('m', $post->post_date_local);
$numpages = 1;
if (!$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;
$content = stripslashes($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 {
$pages[0] = stripslashes($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 => $functions) {
foreach($functions as $function) {
$string = $function($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, $string) {
return apply_filter($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, $priority);
}
/* Highlighting code c/o Ryan Boren */
function get_search_query_terms($engine = 'google') {
global $s, $s_array;
$referer = urldecode($_SERVER[HTTP_REFERER]);
$query_array = array();
switch ($engine) {
case 'google':
// Google query parsing code adapted from Dean Allen's
// Google Hilite 0.3. http://textism.com
$query_terms = preg_replace('/^.*q=([^&]+)&?.*$/i','$1', $referer);
$query_terms = preg_replace('/\'|"/', '', $query_terms);
$query_array = preg_split ("/[\s,\+\.]+/", $query_terms);
break;
case 'lycos':
$query_terms = preg_replace('/^.*query=([^&]+)&?.*$/i','$1', $referer);
$query_terms = preg_replace('/\'|"/', '', $query_terms);
$query_array = preg_split ("/[\s,\+\.]+/", $query_terms);
break;
case 'yahoo':
$query_terms = preg_replace('/^.*p=([^&]+)&?.*$/i','$1', $referer);
$query_terms = preg_replace('/\'|"/', '', $query_terms);
$query_array = preg_split ("/[\s,\+\.]+/", $query_terms);
break;
case 'wordpress':
// Check the search form vars if the search terms
// aren't in the referer.
if ( ! preg_match('/^.*s=/i', $referer)) {
if (isset($s_array)) {
$query_array = $s_array;
} else if (isset($s)) {
$query_array = array($s);
}
break;
}
$query_terms = preg_replace('/^.*s=([^&]+)&?.*$/i','$1', $referer);
$query_terms = preg_replace('/\'|"/', '', $query_terms);
$query_array = preg_split ("/[\s,\+\.]+/", $query_terms);
break;
}
return $query_array;
}
function is_referer_search_engine($engine = 'google') {
$siteurl = get_settings('siteurl');
$referer = urldecode($_SERVER['HTTP_REFERER']);
//echo "referer is: $referer<br />";
if ( ! $engine ) {
return 0;
}
switch ($engine) {
case 'google':
if (preg_match('/^http:\/\/w?w?w?\.?google.*/i', $referer)) {
return 1;
}
break;
case 'lycos':
if (preg_match('/^http:\/\/search\.lycos.*/i', $referer)) {
return 1;
}
break;
case 'yahoo':
if (preg_match('/^http:\/\/search\.yahoo.*/i', $referer)) {
return 1;
}
break;
case 'wordpress':
if (preg_match("#^$siteurl#i", $referer)) {
return 1;
}
break;
}
return 0;
}
function hilite($text) {
$search_engines = array('wordpress', 'google', 'lycos', 'yahoo');
foreach ($search_engines as $engine) {
if ( is_referer_search_engine($engine)) {
$query_terms = get_search_query_terms($engine);
foreach ($query_terms as $term) {
if (!empty($term) && $term != ' ') {
if (!preg_match('/<.+>/',$text)) {
$text = preg_replace('/(\b'.$term.'\b)/i','<span class="hilite">$1</span>',$text);
} else {
$text = preg_replace('/(?<=>)([^<]+)?(\b'.$term.'\b)/i','$1<span class="hilite">$2</span>',$text);
}
}
}
break;
}
}
return $text;
}
/* 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 = '') {
function preg_index($number, $matches = '') {
$match_prefix = '$';
$match_suffix = '';
if (! empty($matches)) {
$match_prefix = '$' . $matches . '[';
$match_suffix = ']';
}
return "$match_prefix$number$match_suffix";
}
$rewrite = array();
$permalink_structure = get_settings('permalink_structure');
if (empty($permalink_structure)) {
return $rewrite;
}
$rewritecode = array(
'%year%',
'%monthnum%',
'%day%',
'%postname%',
'%post_id%'
);
$rewritereplace = array(
'([0-9]{4})?',
'([0-9]{1,2})?',
'([0-9]{1,2})?',
'([0-9a-z-]+)?',
'([0-9]+)?'
);
$queryreplace = array (
'year=',
'monthnum=',
'day=',
'name=',
'p='
);
$match = str_replace('/', '/?', $permalink_structure);
$match = preg_replace('|/[?]|', '', $match, 1);
$match = str_replace($rewritecode, $rewritereplace, $match);
$match = preg_replace('|[?]|', '', $match, 1);
$feedmatch = str_replace('?/?', '/', $match);
$trackbackmatch = $feedmatch;
preg_match_all('/%.+?%/', $permalink_structure, $tokens);
$query = 'index.php?';
$feedquery = 'wp-feed.php?';
$trackbackquery = 'wp-trackback.php?';
for ($i = 0; $i < count($tokens[0]); ++$i) {
if (0 < $i) {
$query .= '&';
$feedquery .= '&';
$trackbackquery .= '&';
}
$query_token = str_replace($rewritecode, $queryreplace, $tokens[0][$i]) . preg_index($i+1, $matches);
$query .= $query_token;
$feedquery .= $query_token;
$trackbackquery .= $query_token;
}
++$i;
// Add post paged stuff
$match .= '([0-9]+)?/?';
$query .= '&page=' . preg_index($i, $matches);
// Add post feed stuff
$feedregex = '(feed|rdf|rss|rss2|atom)/?';
$feedmatch .= $feedregex;
$feedquery .= '&feed=' . preg_index($i, $matches);
// Add post trackback stuff
$trackbackregex = 'trackback/?';
$trackbackmatch .= $trackbackregex;
// Site feed
$sitefeedmatch = 'feed/?([0-9a-z-]+)?/?$';
$sitefeedquery = $site_root . 'wp-feed.php?feed=' . preg_index(1, $matches);
// Site comment feed
$sitecommentfeedmatch = 'comments/feed/?([0-9a-z-]+)?/?$';
$sitecommentfeedquery = $site_root . 'wp-feed.php?feed=' . preg_index(1, $matches) . '&withcomments=1';
// Code for nice categories and authors, currently not very flexible
$front = substr($permalink_structure, 0, strpos($permalink_structure, '%'));
$catmatch = $front . 'category/';
$catmatch = preg_replace('|^/+|', '', $catmatch);
$catfeedmatch = $catmatch . '(.*)/' . $feedregex;
$catfeedquery = 'wp-feed.php?category_name=' . preg_index(1, $matches) . '&feed=' . preg_index(2, $matches);
$catmatch = $catmatch . '?(.*)';
$catquery = 'index.php?category_name=' . preg_index(1, $matches);
$authormatch = $front . 'author/';
$authormatch = preg_replace('|^/+|', '', $authormatch);
$authorfeedmatch = $authormatch . '(.*)/' . $feedregex;
$authorfeedquery = 'wp-feed.php?author_name=' . preg_index(1, $matches) . '&feed=' . preg_index(2, $matches);
$authormatch = $authormatch . '?(.*)';
$authorquery = 'index.php?author_name=' . preg_index(1, $matches);
$rewrite = array(
$catfeedmatch => $catfeedquery,
$catmatch => $catquery,
$authorfeedmatch => $authorfeedquery,
$authormatch => $authorquery,
$match => $query,
$feedmatch => $feedquery,
$trackbackmatch => $tracbackquery,
$sitefeedmatch => $sitefeedquery,
$sitecommentfeedmatch => $sitecommentfeedquery
);
return $rewrite;
}
function remove_slashes($string) {
return stripslashes(stripslashes($string));
}
function get_posts($args) {
global $wpdb, $tableposts;
parse_str($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 = gmdate('Y-m-d H:i:s');
$posts = $wpdb->get_results("SELECT DISTINCT * FROM $tableposts WHERE post_date <= '$now' AND (post_status = 'publish') GROUP BY $tableposts.ID ORDER BY post_date DESC LIMIT " . $r['offset'] . ',' . $r['numberposts']);
return $posts;
}
?>