/tags/2.2.1/wp-includes/comment.php
PHP | 817 lines | 600 code | 152 blank | 65 comment | 147 complexity | 9e9504185d9556a333d286978290ce9d MD5 | raw file
Possible License(s): AGPL-1.0, LGPL-2.0, LGPL-2.1, GPL-2.0
- <?php
- function check_comment($author, $email, $url, $comment, $user_ip, $user_agent, $comment_type) {
- global $wpdb;
- if ( 1 == get_option('comment_moderation') )
- return false; // If moderation is set to manual
- if ( preg_match_all("|(href\t*?=\t*?['\"]?)?(https?:)?//|i", $comment, $out) >= get_option('comment_max_links') )
- return false; // Check # of external links
- $mod_keys = trim(get_option('moderation_keys'));
- if ( !empty($mod_keys) ) {
- $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;
- }
- }
- // Comment whitelisting:
- if ( 1 == get_option('comment_whitelist')) {
- if ( 'trackback' == $comment_type || 'pingback' == $comment_type ) { // check if domain is in blogroll
- $uri = parse_url($url);
- $domain = $uri['host'];
- $uri = parse_url( get_option('home') );
- $home_domain = $uri['host'];
- if ( $wpdb->get_var("SELECT link_id FROM $wpdb->links WHERE link_url LIKE ('%$domain%') LIMIT 1") || $domain == $home_domain )
- return true;
- else
- return false;
- } elseif ( $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' LIMIT 1");
- if ( ( 1 == $ok_to_comment ) &&
- ( empty($mod_keys) || false === strpos( $email, $mod_keys) ) )
- return true;
- else
- return false;
- } else {
- return false;
- }
- }
- return true;
- }
- function get_approved_comments($post_id) {
- global $wpdb;
- $post_id = (int) $post_id;
- return $wpdb->get_results("SELECT * FROM $wpdb->comments WHERE comment_post_ID = '$post_id' AND comment_approved = '1' ORDER BY comment_date");
- }
- // Retrieves comment data given a comment ID or comment object.
- // Handles comment caching.
- function &get_comment(&$comment, $output = OBJECT) {
- global $comment_cache, $wpdb;
- if ( empty($comment) )
- return null;
- if ( is_object($comment) ) {
- if ( !isset($comment_cache[$comment->comment_ID]) )
- $comment_cache[$comment->comment_ID] = &$comment;
- $_comment = & $comment_cache[$comment->comment_ID];
- } else {
- $comment = (int) $comment;
- if ( !isset($comment_cache[$comment]) ) {
- $_comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID = '$comment' LIMIT 1");
- $comment_cache[$comment->comment_ID] = & $_comment;
- } else {
- $_comment = & $comment_cache[$comment];
- }
- }
- if ( $output == OBJECT ) {
- return $_comment;
- } elseif ( $output == ARRAY_A ) {
- return get_object_vars($_comment);
- } elseif ( $output == ARRAY_N ) {
- return array_values(get_object_vars($_comment));
- } else {
- return $_comment;
- }
- }
- // Deprecate in favor of get_comment()?
- 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 $myrow;
- }
- function get_lastcommentmodified($timezone = 'server') {
- global $cache_lastcommentmodified, $pagenow, $wpdb;
- $add_seconds_blog = get_option('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 $wpdb->comments WHERE comment_date_gmt <= '$now' ORDER BY comment_date_gmt DESC LIMIT 1");
- break;
- case 'blog':
- $lastcommentmodified = $wpdb->get_var("SELECT comment_date FROM $wpdb->comments WHERE comment_date_gmt <= '$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 $wpdb->comments WHERE comment_date_gmt <= '$now' ORDER BY comment_date_gmt DESC LIMIT 1");
- break;
- }
- $cache_lastcommentmodified[$timezone] = $lastcommentmodified;
- } else {
- $lastcommentmodified = $cache_lastcommentmodified[$timezone];
- }
- return $lastcommentmodified;
- }
- function sanitize_comment_cookies() {
- if ( isset($_COOKIE['comment_author_'.COOKIEHASH]) ) {
- $comment_author = apply_filters('pre_comment_author_name', $_COOKIE['comment_author_'.COOKIEHASH]);
- $comment_author = stripslashes($comment_author);
- $comment_author = attribute_escape($comment_author);
- $_COOKIE['comment_author_'.COOKIEHASH] = $comment_author;
- }
- if ( isset($_COOKIE['comment_author_email_'.COOKIEHASH]) ) {
- $comment_author_email = apply_filters('pre_comment_author_email', $_COOKIE['comment_author_email_'.COOKIEHASH]);
- $comment_author_email = stripslashes($comment_author_email);
- $comment_author_email = attribute_escape($comment_author_email);
- $_COOKIE['comment_author_email_'.COOKIEHASH] = $comment_author_email;
- }
- if ( isset($_COOKIE['comment_author_url_'.COOKIEHASH]) ) {
- $comment_author_url = apply_filters('pre_comment_author_url', $_COOKIE['comment_author_url_'.COOKIEHASH]);
- $comment_author_url = stripslashes($comment_author_url);
- $comment_author_url = clean_url($comment_author_url);
- $_COOKIE['comment_author_url_'.COOKIEHASH] = $comment_author_url;
- }
- }
- function wp_allow_comment($commentdata) {
- global $wpdb;
- extract($commentdata, EXTR_SKIP);
- // Simple duplicate check
- $dupe = "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = '$comment_post_ID' AND ( comment_author = '$comment_author' ";
- if ( $comment_author_email )
- $dupe .= "OR comment_author_email = '$comment_author_email' ";
- $dupe .= ") AND comment_content = '$comment_content' LIMIT 1";
- if ( $wpdb->get_var($dupe) )
- wp_die( __('Duplicate comment detected; it looks as though you\'ve already said that!') );
- // Simple flood-protection
- if ( $lasttime = $wpdb->get_var("SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_author_IP = '$comment_author_IP' OR comment_author_email = '$comment_author_email' ORDER BY comment_date DESC LIMIT 1") ) {
- $time_lastcomment = mysql2date('U', $lasttime);
- $time_newcomment = mysql2date('U', $comment_date_gmt);
- $flood_die = apply_filters('comment_flood_filter', false, $time_lastcomment, $time_newcomment);
- if ( $flood_die ) {
- do_action('comment_flood_trigger', $time_lastcomment, $time_newcomment);
- wp_die( __('You are posting comments too quickly. Slow down.') );
- }
- }
- if ( $user_id ) {
- $userdata = get_userdata($user_id);
- $user = new WP_User($user_id);
- $post_author = $wpdb->get_var("SELECT post_author FROM $wpdb->posts WHERE ID = '$comment_post_ID' LIMIT 1");
- }
- if ( $userdata && ( $user_id == $post_author || $user->has_cap('level_9') ) ) {
- // The author and the admins get respect.
- $approved = 1;
- } else {
- // Everyone else's comments will be checked.
- if ( check_comment($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent, $comment_type) )
- $approved = 1;
- else
- $approved = 0;
- if ( wp_blacklist_check($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent) )
- $approved = 'spam';
- }
- $approved = apply_filters('pre_comment_approved', $approved);
- return $approved;
- }
- function wp_blacklist_check($author, $email, $url, $comment, $user_ip, $user_agent) {
- global $wpdb;
- do_action('wp_blacklist_check', $author, $email, $url, $comment, $user_ip, $user_agent);
- if ( preg_match_all('/&#(\d+);/', $comment . $author . $url, $chars) ) {
- foreach ( (array) $chars[1] as $char ) {
- // If it's an encoded char in the normal ASCII set, reject
- if ( 38 == $char )
- continue; // Unless it's &
- if ( $char < 128 )
- return true;
- }
- }
- $mod_keys = trim( get_option('blacklist_keys') );
- if ( '' == $mod_keys )
- return false; // If moderation keys are empty
- $words = explode("\n", $mod_keys );
- foreach ( (array) $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, $author)
- || preg_match($pattern, $email)
- || preg_match($pattern, $url)
- || preg_match($pattern, $comment)
- || preg_match($pattern, $user_ip)
- || preg_match($pattern, $user_agent)
- )
- return true;
- }
- return false;
- }
- function wp_delete_comment($comment_id) {
- global $wpdb;
- do_action('delete_comment', $comment_id);
- $comment = get_comment($comment_id);
- if ( ! $wpdb->query("DELETE FROM $wpdb->comments WHERE comment_ID='$comment_id' LIMIT 1") )
- return false;
- $post_id = $comment->comment_post_ID;
- if ( $post_id && $comment->comment_approved == 1 )
- wp_update_comment_count($post_id);
- do_action('wp_set_comment_status', $comment_id, 'delete');
- return true;
- }
- function wp_get_comment_status($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';
- elseif ( $result == '1' )
- return 'approved';
- elseif ( $result == '0' )
- return 'unapproved';
- elseif ( $result == 'spam' )
- return 'spam';
- else
- return false;
- }
- function wp_get_current_commenter() {
- // Cookies should already be sanitized.
- $comment_author = '';
- if ( isset($_COOKIE['comment_author_'.COOKIEHASH]) )
- $comment_author = $_COOKIE['comment_author_'.COOKIEHASH];
- $comment_author_email = '';
- if ( isset($_COOKIE['comment_author_email_'.COOKIEHASH]) )
- $comment_author_email = $_COOKIE['comment_author_email_'.COOKIEHASH];
- $comment_author_url = '';
- if ( isset($_COOKIE['comment_author_url_'.COOKIEHASH]) )
- $comment_author_url = $_COOKIE['comment_author_url_'.COOKIEHASH];
- return compact('comment_author', 'comment_author_email', 'comment_author_url');
- }
- function wp_insert_comment($commentdata) {
- global $wpdb;
- extract($commentdata, EXTR_SKIP);
- if ( ! isset($comment_author_IP) )
- $comment_author_IP = preg_replace( '/[^0-9., ]/', '',$_SERVER['REMOTE_ADDR'] );
- if ( ! isset($comment_date) )
- $comment_date = current_time('mysql');
- if ( ! isset($comment_date_gmt) )
- $comment_date_gmt = get_gmt_from_date($comment_date);
- if ( ! isset($comment_parent) )
- $comment_parent = 0;
- if ( ! isset($comment_approved) )
- $comment_approved = 1;
- if ( ! isset($user_id) )
- $user_id = 0;
- $result = $wpdb->query("INSERT INTO $wpdb->comments
- (comment_post_ID, comment_author, comment_author_email, comment_author_url, comment_author_IP, comment_date, comment_date_gmt, comment_content, comment_approved, comment_agent, comment_type, comment_parent, user_id)
- VALUES
- ('$comment_post_ID', '$comment_author', '$comment_author_email', '$comment_author_url', '$comment_author_IP', '$comment_date', '$comment_date_gmt', '$comment_content', '$comment_approved', '$comment_agent', '$comment_type', '$comment_parent', '$user_id')
- ");
- $id = (int) $wpdb->insert_id;
- if ( $comment_approved == 1)
- wp_update_comment_count($comment_post_ID);
- return $id;
- }
- function wp_filter_comment($commentdata) {
- $commentdata['user_id'] = apply_filters('pre_user_id', $commentdata['user_ID']);
- $commentdata['comment_agent'] = apply_filters('pre_comment_user_agent', $commentdata['comment_agent']);
- $commentdata['comment_author'] = apply_filters('pre_comment_author_name', $commentdata['comment_author']);
- $commentdata['comment_content'] = apply_filters('pre_comment_content', $commentdata['comment_content']);
- $commentdata['comment_author_IP'] = apply_filters('pre_comment_user_ip', $commentdata['comment_author_IP']);
- $commentdata['comment_author_url'] = apply_filters('pre_comment_author_url', $commentdata['comment_author_url']);
- $commentdata['comment_author_email'] = apply_filters('pre_comment_author_email', $commentdata['comment_author_email']);
- $commentdata['filtered'] = true;
- return $commentdata;
- }
- function wp_throttle_comment_flood($block, $time_lastcomment, $time_newcomment) {
- if ( $block ) // a plugin has already blocked... we'll let that decision stand
- return $block;
- if ( ($time_newcomment - $time_lastcomment) < 15 )
- return true;
- return false;
- }
- function wp_new_comment( $commentdata ) {
- $commentdata = apply_filters('preprocess_comment', $commentdata);
- $commentdata['comment_post_ID'] = (int) $commentdata['comment_post_ID'];
- $commentdata['user_ID'] = (int) $commentdata['user_ID'];
- $commentdata['comment_author_IP'] = preg_replace( '/[^0-9., ]/', '',$_SERVER['REMOTE_ADDR'] );
- $commentdata['comment_agent'] = $_SERVER['HTTP_USER_AGENT'];
- $commentdata['comment_date'] = current_time('mysql');
- $commentdata['comment_date_gmt'] = current_time('mysql', 1);
- $commentdata = wp_filter_comment($commentdata);
- $commentdata['comment_approved'] = wp_allow_comment($commentdata);
- $comment_ID = wp_insert_comment($commentdata);
- do_action('comment_post', $comment_ID, $commentdata['comment_approved']);
- if ( 'spam' !== $commentdata['comment_approved'] ) { // If it's spam save it silently for later crunching
- if ( '0' == $commentdata['comment_approved'] )
- wp_notify_moderator($comment_ID);
- $post = &get_post($commentdata['comment_post_ID']); // Don't notify if it's your own comment
- if ( get_option('comments_notify') && $commentdata['comment_approved'] && $post->post_author != $commentdata['user_ID'] )
- wp_notify_postauthor($comment_ID, $commentdata['comment_type']);
- }
- return $comment_ID;
- }
- function wp_set_comment_status($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 'spam':
- $query = "UPDATE $wpdb->comments SET comment_approved='spam' WHERE comment_ID='$comment_id' LIMIT 1";
- break;
- case 'delete':
- return wp_delete_comment($comment_id);
- break;
- default:
- return false;
- }
- if ( !$wpdb->query($query) )
- return false;
- do_action('wp_set_comment_status', $comment_id, $comment_status);
- $comment = get_comment($comment_id);
- wp_update_comment_count($comment->comment_post_ID);
- return true;
- }
- function wp_update_comment($commentarr) {
- global $wpdb;
- // First, get all of the original fields
- $comment = get_comment($commentarr['comment_ID'], ARRAY_A);
- // Escape data pulled from DB.
- foreach ( (array) $comment as $key => $value )
- $comment[$key] = $wpdb->escape($value);
- // Merge old and new fields with new fields overwriting old ones.
- $commentarr = array_merge($comment, $commentarr);
- $commentarr = wp_filter_comment( $commentarr );
- // Now extract the merged array.
- extract($commentarr, EXTR_SKIP);
- $comment_content = apply_filters('comment_save_pre', $comment_content);
- $comment_date_gmt = get_gmt_from_date($comment_date);
- $result = $wpdb->query(
- "UPDATE $wpdb->comments SET
- comment_content = '$comment_content',
- comment_author = '$comment_author',
- comment_author_email = '$comment_author_email',
- comment_approved = '$comment_approved',
- comment_author_url = '$comment_author_url',
- comment_date = '$comment_date',
- comment_date_gmt = '$comment_date_gmt'
- WHERE comment_ID = $comment_ID" );
- $rval = $wpdb->rows_affected;
- wp_update_comment_count($comment_post_ID);
- do_action('edit_comment', $comment_ID);
- return $rval;
- }
- function wp_update_comment_count($post_id) {
- global $wpdb, $comment_count_cache;
- $post_id = (int) $post_id;
- if ( !$post_id )
- return false;
- $count = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = '$post_id' AND comment_approved = '1'");
- $wpdb->query("UPDATE $wpdb->posts SET comment_count = $count WHERE ID = '$post_id'");
- $comment_count_cache[$post_id] = $count;
- $post = get_post($post_id);
- if ( 'page' == $post->post_type )
- clean_page_cache( $post_id );
- else
- clean_post_cache( $post_id );
- do_action('edit_post', $post_id);
- return true;
- }
- //
- // Ping and trackback functions.
- //
- function discover_pingback_server_uri($url, $timeout_bytes = 2048) {
- global $wp_version;
- $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), EXTR_SKIP);
- 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 \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 URL
- 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;
- }
- 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 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(']]>', ']]>', $excerpt);
- $excerpt = strip_tags($excerpt);
- if ( function_exists('mb_strcut') ) // For international trackbacks
- $excerpt = mb_strcut($excerpt, 0, 252, get_option('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 ( (array) $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 = '$post_id'");
- }
- }
- }
- }
- function generic_ping($post_id = 0) {
- $services = get_option('ping_sites');
- $services = preg_replace("|(\s)+|", '$1', $services); // Kill dupe lines
- $services = trim($services);
- if ( '' != $services ) {
- $services = explode("\n", $services);
- foreach ( (array) $services as $service )
- weblog_ping($service);
- }
- return $post_id;
- }
- function pingback($content, $post_ID) {
- global $wp_version, $wpdb;
- include_once(ABSPATH . WPINC . '/class-IXR.php');
- // original code by Mort (http://mort.mine.nu:8080)
- $log = debug_fopen(ABSPATH . '/pingback.log', 'a');
- $post_links = array();
- debug_fwrite($log, 'BEGIN ' . date('YmdHis', time()) . "\n");
- $pung = get_pung($post_ID);
- // Variables
- $ltrs = '\w';
- $gunk = '/#~:.?+=&%@!\-';
- $punc = '.:?\-';
- $any = $ltrs . $gunk . $punc;
- // Step 1
- // Parsing the post, external links (if any) are stored in the $post_links array
- // This regexp comes straight from phpfreaks.com
- // http://www.phpfreaks.com/quickcode/Extract_All_URLs_on_a_Page/15.php
- preg_match_all("{\b http : [$any] +? (?= [$punc] * [^$any] | $)}x", $content, $post_links_temp);
- // Debug
- debug_fwrite($log, 'Post contents:');
- debug_fwrite($log, $content."\n");
- // Step 2.
- // Walking thru the links array
- // first we get rid of links pointing to sites, not to specific files
- // Example:
- // http://dummy-weblog.org
- // http://dummy-weblog.org/
- // http://dummy-weblog.org/post.php
- // We don't wanna ping first and second types, even if they have a valid <link/>
- foreach ( $post_links_temp[0] as $link_test ) :
- if ( !in_array($link_test, $pung) && (url_to_postid($link_test) != $post_ID) // If we haven't pung it already and it isn't a link to itself
- && !is_local_attachment($link_test) ) : // Also, let's never ping local attachments.
- $test = parse_url($link_test);
- if ( isset($test['query']) )
- $post_links[] = $link_test;
- elseif ( ($test['path'] != '/') && ($test['path'] != '') )
- $post_links[] = $link_test;
- endif;
- endforeach;
- do_action_ref_array('pre_ping', array(&$post_links, &$pung));
- foreach ( (array) $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;
- if ( $client->query('pingback.ping', $pagelinkedfrom, $pagelinkedto ) )
- add_ping( $post_ID, $pagelinkedto );
- else
- debug_fwrite($log, "Error.\n Fault code: ".$client->getErrorCode()." : ".$client->getErrorMessage()."\n");
- }
- }
- debug_fwrite($log, "\nEND: ".time()."\n****************************\n");
- debug_fclose($log);
- }
- function privacy_ping_filter($sites) {
- if ( '0' != get_option('blog_public') )
- return $sites;
- else
- return '';
- }
- // Send a Trackback
- function trackback($trackback_url, $title, $excerpt, $ID) {
- global $wpdb, $wp_version;
- if ( empty($trackback_url) )
- return;
- $title = urlencode($title);
- $excerpt = urlencode($excerpt);
- $blog_name = urlencode(get_option('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_option('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 = '$ID'");
- }
- function weblog_ping($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_option('blogname'), $home, get_bloginfo('rss2_url') ) ) // then try a normal ping
- $client->query('weblogUpdates.ping', get_option('blogname'), $home);
- }
- ?>