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author | donncha <donncha@7be80a69-a1ef-0310-a953-fb0f7c49ff36> | 2006-06-22 18:31:50 +0000 |
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committer | donncha <donncha@7be80a69-a1ef-0310-a953-fb0f7c49ff36> | 2006-06-22 18:31:50 +0000 |
commit | d48e85e0ac5e675ca33fac173f30c75403d1033f (patch) | |
tree | 1164430fa3b83a4d9283961b09c1576f2885e6b2 /wp-includes/comment.php | |
parent | 086dcde66603301531efc6d8087bd06d0546f148 (diff) | |
download | wordpress-mu-d48e85e0ac5e675ca33fac173f30c75403d1033f.tar.gz wordpress-mu-d48e85e0ac5e675ca33fac173f30c75403d1033f.tar.xz wordpress-mu-d48e85e0ac5e675ca33fac173f30c75403d1033f.zip |
Moved everything in wp-inst down a directory.
Uses's Ryan Boren's htaccess rules and mods
If you're upgrading, try this on a test server first!
git-svn-id: http://svn.automattic.com/wordpress-mu/trunk@591 7be80a69-a1ef-0310-a953-fb0f7c49ff36
Diffstat (limited to 'wp-includes/comment.php')
-rw-r--r-- | wp-includes/comment.php | 622 |
1 files changed, 622 insertions, 0 deletions
diff --git a/wp-includes/comment.php b/wp-includes/comment.php new file mode 100644 index 0000000..9751c36 --- /dev/null +++ b/wp-includes/comment.php @@ -0,0 +1,622 @@ +<?php + +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 + + $mod_keys = trim( get_settings('moderation_keys') ); + if ( !empty($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_settings('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 { + 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_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 $wpdb->comments WHERE comment_date_gmt <= '$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 $lastcommentmodified; +} + +function wp_allow_comment($commentdata) { + global $wpdb; + extract($commentdata); + + $comment_user_domain = apply_filters('pre_comment_user_domain', gethostbyaddr($comment_author_IP) ); + + // 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) ) + 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', $comment_date_gmt); + if ( ($time_newcomment - $time_lastcomment) < 15 ) { + do_action('comment_flood_trigger', $time_lastcomment, $time_newcomment); + die( __('Sorry, you can only post a new comment once every 15 seconds. Slow down cowboy.') ); + } + } + + 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"); + } + + // The author and the admins get respect. + if ( $userdata && ( $user_id == $post_author || $user->has_cap('level_9') ) ) { + $approved = 1; + } + + // Everyone else's comments will be checked. + else { + if ( check_comment($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, $chars) ) { + foreach ($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_settings('blacklist_keys') ); + if ('' == $mod_keys ) + return false; // 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, $author ) ) return true; + if ( preg_match($pattern, $email ) ) return true; + if ( preg_match($pattern, $url ) ) return true; + if ( preg_match($pattern, $comment ) ) return true; + if ( preg_match($pattern, $user_ip ) ) return true; + if ( preg_match($pattern, $user_agent) ) return true; + } + + if ( isset($_SERVER['REMOTE_ADDR']) ) { + if ( wp_proxy_check($_SERVER['REMOTE_ADDR']) ) return true; + } + + return false; +} + +function wp_delete_comment($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 ($result == NULL) { + return 'deleted'; + } else if ($result == '1') { + return 'approved'; + } else if ($result == '0') { + return 'unapproved'; + } else if ($result == 'spam') { + return 'spam'; + } else { + return false; + } +} + +function wp_insert_comment($commentdata) { + global $wpdb; + extract($commentdata); + + if ( ! isset($comment_author_IP) ) + $comment_author_IP = $_SERVER['REMOTE_ADDR']; + if ( ! isset($comment_date) ) + $comment_date = current_time('mysql'); + if ( ! isset($comment_date_gmt) ) + $comment_date_gmt = gmdate('Y-m-d H:i:s', strtotime($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 = $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_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'] = $_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_settings('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)) { + do_action('wp_set_comment_status', $comment_id, $comment_status); + + $comment = get_comment($comment_id); + $comment_post_ID = $comment->comment_post_ID; + $c = $wpdb->get_row( "SELECT count(*) as c FROM {$wpdb->comments} WHERE comment_post_ID = '$comment_post_ID' AND comment_approved = '1'" ); + if( is_object( $c ) ) + $wpdb->query( "UPDATE $wpdb->posts SET comment_count = '$c->c' WHERE ID = '$comment_post_ID'" ); + return true; + } else { + return false; + } +} + +function wp_update_comment($commentarr) { + global $wpdb; + + // First, get all of the original fields + $comment = get_comment($commentarr['comment_ID'], ARRAY_A); + + // Escape data pulled from DB. + foreach ($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); + + $comment_content = apply_filters('comment_save_pre', $comment_content); + + $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' + 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] = $count; + return true; +} + +function pingback($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[] = $link_test; + endif; + endforeach; + + do_action('pre_ping', array(&$post_links, &$pung)); + + foreach ($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; + + 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 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)); + + 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, $pingback_server_url_len); + // We may find rel="pingback" but an incomplete pingback URI + if ($pingback_server_url_len > 0) { + // We got it! + return $pingback_server_url; + } + } + $byte_count += strlen($line); + if ($byte_count > $timeout_bytes) { + // It's no use going further, there probably isn't any pingback + // server to find in this file. (Prevents loading large files.) + return false; + } + } + + // We didn't find anything. + return false; +} + +function is_local_attachment($url) { + if ( !strstr($url, get_bloginfo('home') ) ) + return false; + if ( strstr($url, get_bloginfo('home') . '/?attachment_id=') ) + return true; + if ( $id = url_to_postid($url) ) { + $post = & get_post($id); + if ( 'attachment' == $post->post_type ) + return true; + } + return false; +} + +?> |