get_results("SELECT * FROM $wpdb->comments WHERE comment_post_ID = '$post->ID' AND comment_approved = '1' ORDER BY comment_date");
if ( file_exists( TEMPLATEPATH . '/comments.php') )
require( TEMPLATEPATH . '/comments.php');
else
require( ABSPATH . 'wp-content/themes/default/comments.php');
endif;
}
function clean_url( $url ) {
if ('' == $url) return $url;
$url = preg_replace('|[^a-z0-9-~+_.?#=&;,/:]|i', '', $url);
$url = str_replace(';//', '://', $url);
$url = (!strstr($url, '://')) ? 'http://'.$url : $url;
$url = preg_replace('/&([^#])(?![a-z]{2,8};)/', '&$1', $url);
return $url;
}
function get_comments_number( $comment_id ) {
global $wpdb, $comment_count_cache;
$comment_id = (int) $comment_id;
if (!isset($comment_count_cache[$comment_id]))
$number = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = '$comment_id' AND comment_approved = '1'");
else
$number = $comment_count_cache[$comment_id];
return apply_filters('get_comments_number', $number);
}
function comments_number( $zero = 'No Comments', $one = '1 Comment', $more = '% Comments', $number = '' ) {
global $id, $comment;
$number = get_comments_number( $id );
if ($number == 0) {
$blah = $zero;
} elseif ($number == 1) {
$blah = $one;
} elseif ($number > 1) {
$blah = str_replace('%', $number, $more);
}
echo apply_filters('comments_number', $blah);
}
function get_comments_link() {
return get_permalink() . '#comments';
}
function comments_link( $file = '', $echo = true ) {
echo get_comments_link();
}
function comments_popup_script($width=400, $height=400, $file='') {
global $wpcommentspopupfile, $wptrackbackpopupfile, $wppingbackpopupfile, $wpcommentsjavascript;
if (empty ($file)) {
if ( file_exists( TEMPLATEPATH . '/comments-popup.php') )
$wpcommentspopupfile = str_replace(ABSPATH, '', TEMPLATEPATH . '/comments-popup.php');
else
$wpcommentspopupfile = 'wp-content/themes/default/comments-popup.php';
} else {
$wpcommentspopupfile = $file;
}
$wpcommentsjavascript = 1;
$javascript = "\n";
echo $javascript;
}
function comments_popup_link($zero='No Comments', $one='1 Comment', $more='% Comments', $CSSclass='', $none='Comments Off') {
global $id, $wpcommentspopupfile, $wpcommentsjavascript, $post, $wpdb;
global $querystring_start, $querystring_equal, $querystring_separator;
global $comment_count_cache;
if (! is_single() && ! is_page()) {
if ('' == $comment_count_cache["$id"]) {
$number = $wpdb->get_var("SELECT COUNT(comment_ID) FROM $wpdb->comments WHERE comment_post_ID = $id AND comment_approved = '1';");
} else {
$number = $comment_count_cache["$id"];
}
if (0 == $number && 'closed' == $post->comment_status && 'closed' == $post->ping_status) {
echo $none;
return;
} else {
if (!empty($post->post_password)) { // if there's a password
if ($_COOKIE['wp-postpass_'.COOKIEHASH] != $post->post_password) { // and it doesn't match the cookie
echo('Enter your password to view comments');
return;
}
}
echo '';
comments_number($zero, $one, $more, $number);
echo '';
}
}
}
function get_comment_ID() {
global $comment;
return apply_filters('get_comment_ID', $comment->comment_ID);
}
function comment_ID() {
echo get_comment_ID();
}
function get_comment_author() {
global $comment;
if ( empty($comment->comment_author) )
$author = 'Anonymous';
else
$author = $comment->comment_author;
return apply_filters('get_comment_author', $author);
}
function comment_author() {
$author = apply_filters('comment_author', get_comment_author() );
echo $author;
}
function get_comment_author_email() {
global $comment;
return apply_filters('get_comment_author_email', $comment->comment_author_email);
}
function comment_author_email() {
echo apply_filters('author_email', get_comment_author_email() );
}
function get_comment_author_link() {
global $comment;
$url = get_comment_author_url();
$author = get_comment_author();
if ( empty( $url ) )
$return = $author;
else
$return = "$author";
return apply_filters('get_comment_author_link', $return);
}
function comment_author_link() {
echo get_comment_author_link();
}
function get_comment_type() {
global $comment;
return apply_filters('get_comment_type', $comment->comment_type);
}
function comment_type($commenttxt = 'Comment', $trackbacktxt = 'Trackback', $pingbacktxt = 'Pingback') {
$type = get_comment_type();
switch( $type ) {
case 'trackback' :
echo $trackbacktxt;
break;
case 'pingback' :
echo $pingbacktxt;
break;
default :
echo $commenttxt;
}
}
function get_comment_author_url() {
global $comment;
return apply_filters('get_comment_author_url', $comment->comment_author_url);
}
function comment_author_url() {
echo apply_filters('comment_url', get_comment_author_url());
}
function comment_author_email_link($linktext='', $before='', $after='') {
global $comment;
$email = apply_filters('comment_email', $comment->comment_author_email);
if ((!empty($email)) && ($email != '@')) {
$display = ($linktext != '') ? $linktext : $email;
echo $before;
echo "$display";
echo $after;
}
}
function get_comment_author_url_link( $linktext = '', $before = '', $after = '' ) {
global $comment;
$url = get_comment_author_url();
$display = ($linktext != '') ? $linktext : $url;
$return = "$before$display$after";
return apply_filters('get_comment_author_url_link', $return);
}
function comment_author_url_link( $linktext = '', $before = '', $after = '' ) {
echo get_comment_author_url_link( $linktext, $before, $after );
}
function get_comment_author_IP() {
global $comment;
return apply_filters('get_comment_author_IP', $comment->comment_author_IP);
}
function comment_author_IP() {
echo get_comment_author_IP();
}
function get_comment_text() {
global $comment;
return apply_filters('get_comment_text', $comment->comment_content);
}
function comment_text() {
echo apply_filters('comment_text', get_comment_text() );
}
function get_comment_excerpt() {
global $comment;
$comment_text = strip_tags($comment->comment_content);
$blah = explode(' ', $comment_text);
if (count($blah) > 20) {
$k = 20;
$use_dotdotdot = 1;
} else {
$k = count($blah);
$use_dotdotdot = 0;
}
$excerpt = '';
for ($i=0; $i<$k; $i++) {
$excerpt .= $blah[$i] . ' ';
}
$excerpt .= ($use_dotdotdot) ? '...' : '';
return apply_filters('get_comment_excerpt', $excerpt);
}
function comment_excerpt() {
echo apply_filters('comment_excerpt', get_comment_excerpt() );
}
function get_comment_date( $d = '' ) {
global $comment;
if ( '' == $d )
$date = mysql2date( get_settings('date_format'), $comment->comment_date);
else
$date = mysql2date($d, $comment->comment_date);
return apply_filters('get_comment_date', $date);
}
function comment_date( $d = '' ) {
echo get_comment_date( $d );
}
function get_comment_time( $d = '' ) {
global $comment;
if ( '' == $d )
$date = mysql2date(get_settings('time_format'), $comment->comment_date);
else
$date = mysql2date($d, $comment->comment_date);
return apply_filters('get_comment_time', $date);
}
function comment_time( $d = '' ) {
echo get_comment_time();
}
function get_trackback_url() {
global $id;
$tb_url = get_settings('siteurl') . '/wp-trackback.php/' . $id;
if ( '' != get_settings('permalink_structure') )
$tb_url = trailingslashit(get_permalink()) . 'trackback/';
return $tb_url;
}
function trackback_url( $display = true ) {
if ( $display)
echo get_trackback_url();
else
return get_trackback_url();
}
function trackback_rdf($timezone = 0) {
global $id;
if (!stristr($_SERVER['HTTP_USER_AGENT'], 'W3C_Validator')) {
echo '
\n";
echo '';
}
}
function comments_open() {
global $post;
if ( 'open' == $post->comment_status )
return true;
else
return false;
}
function pings_open() {
global $post;
if ( 'open' == $post->ping_status )
return true;
else
return false;
}
// Non-template functions
function get_lastcommentmodified($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 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;
$myrow['comment_type'] = $postc->comment_type;
}
return $myrow;
}
function pingback($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, $content."\n");
// Step 2.
// Walking thru the links array
// first we get rid of links pointing to sites, not to specific files
// Example:
// http://dummy-weblog.org
// http://dummy-weblog.org/
// http://dummy-weblog.org/post.php
// We don't wanna ping first and second types, even if they have a valid
foreach($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, $errstr, 2);
if (!$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\" ';
} else {
$from = 'From: "' . $comment->comment_author . "\" <$comment->comment_author_email>";
}
$message_headers = "MIME-Version: 1.0\n"
. "$from\n"
. "Content-Type: text/plain; charset=\"" . get_settings('blog_charset') . "\"\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;
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'");
$notify_message = "A new comment on the post #$post->ID \"$post->post_title\" is waiting for your approval\r\n";
$notify_message .= get_permalink($comment->comment_post_ID);
$notify_message .= "\n\nAuthor : $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";
$subject = '[' . get_settings('blogname') . '] Please moderate: "' .$post->post_title.'"';
$admin_email = get_settings("admin_email");
$from = "From: $admin_email";
$message_headers = "MIME-Version: 1.0\n"
. "$from\n"
. "Content-Type: text/plain; charset=\"" . get_settings('blog_charset') . "\"\n";
@wp_mail($admin_email, $subject, $notify_message, $message_headers);
return true;
}
function check_comment($author, $email, $url, $comment, $user_ip, $user_agent, $comment_type) {
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')) {
if( $author != '' && $email != '' ) {
$ok_to_comment = $wpdb->get_var("SELECT comment_approved FROM $wpdb->comments WHERE comment_author = '$author' AND comment_author_email = '$email' and comment_approved = '1' ");
if ( 1 == $ok_to_comment && false === strpos( $email, get_settings('moderation_keys')) )
return true;
}
if ( 'trackback' == $comment_type || 'pingback' == $comment_type ) { // check if domain is in blogroll
$uri = parse_url($url);
$domain = $uri['host'];
$in_blogroll = $wpdb->get_var("SELECT link_id FROM $wpdb->links WHERE link_url LIKE ('%$domain%') LIMIT 1");
if ( $in_blogroll )
return true;
}
}
$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; }
// Do some escaping magic so that '#' chars in the
// spam words don't break things:
$word = preg_quote($word, '#');
$pattern = "#$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, $user_agent) ) return false;
}
return true;
}
?>