get_var($wpdb->prepare("SELECT link_id FROM $wpdb->links WHERE link_url LIKE (%s) LIMIT 1", '%'.$domain.'%')) || $domain == $home_domain ) return 1; else return 0; } elseif ( $author != '' && $email != '' ) { // expected_slashed ($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, $mod_keys) ) ) if ($linkcount_result == 0) return 1; else return 0; else if ($linkcount_result > 1) return "spam"; else return 0; } else return 0; } return 1; } /** * Retrieve the approved comments for post $post_id. * * @since 2.0.0 * @uses $wpdb * * @param int $post_id The ID of the post * @return array $comments The approved comments */ function get_approved_comments($post_id) { global $wpdb; return $wpdb->get_results($wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved = '1' ORDER BY comment_date", $post_id)); } /** * Retrieves comment data given a comment ID or comment object. * * If an object is passed then the comment data will be cached and then returned * after being passed through a filter. If the comment is empty, then the global * comment variable will be used, if it is set. * * If the comment is empty, then the global comment variable will be used, if it * is set. * * @since 2.0.0 * @uses $wpdb * * @param object|string|int $comment Comment to retrieve. * @param string $output Optional. OBJECT or ARRAY_A or ARRAY_N constants. * @return object|array|null Depends on $output value. */ function &get_comment(&$comment, $output = OBJECT) { global $wpdb; if ( empty($comment) ) { if ( isset($GLOBALS['comment']) ) $_comment = & $GLOBALS['comment']; else $_comment = null; } elseif ( is_object($comment) ) { wp_cache_add($comment->comment_ID, $comment, 'comment'); $_comment = $comment; } else { if ( isset($GLOBALS['comment']) && ($GLOBALS['comment']->comment_ID == $comment) ) { $_comment = & $GLOBALS['comment']; } elseif ( ! $_comment = wp_cache_get($comment, 'comment') ) { $_comment = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_ID = %d LIMIT 1", $comment)); wp_cache_add($_comment->comment_ID, $_comment, 'comment'); } } $_comment = apply_filters('get_comment', $_comment); if ( $output == OBJECT ) { return $_comment; } elseif ( $output == ARRAY_A ) { $__comment = get_object_vars($_comment); return $__comment; } elseif ( $output == ARRAY_N ) { $__comment = array_values(get_object_vars($_comment)); return $__comment; } else { return $_comment; } } /** * Retrieve a list of comments. * * The list of comment arguments are 'status', 'orderby', 'comment_date_gmt', * 'order', 'number', 'offset', and 'post_id'. * * @since 2.7.0 * @uses $wpdb * * @param mixed $args Optional. Array or string of options to override defaults. * @return array List of comments. */ function get_comments( $args = '' ) { global $wpdb; $defaults = array('status' => '', 'orderby' => 'comment_date_gmt', 'order' => 'DESC', 'number' => '', 'offset' => '', 'post_id' => 0); $args = wp_parse_args( $args, $defaults ); extract( $args, EXTR_SKIP ); // $args can be whatever, only use the args defined in defaults to compute the key $key = md5( serialize( compact(array_keys($defaults)) ) ); $last_changed = wp_cache_get('last_changed', 'comment'); if ( !$last_changed ) { $last_changed = time(); wp_cache_set('last_changed', $last_changed, 'comment'); } $cache_key = "get_comments:$key:$last_changed"; if ( $cache = wp_cache_get( $cache_key, 'comment' ) ) { return $cache; } $post_id = absint($post_id); if ( 'hold' == $status ) $approved = "comment_approved = '0'"; elseif ( 'approve' == $status ) $approved = "comment_approved = '1'"; elseif ( 'spam' == $status ) $approved = "comment_approved = 'spam'"; else $approved = "( comment_approved = '0' OR comment_approved = '1' )"; $order = ( 'ASC' == $order ) ? 'ASC' : 'DESC'; $orderby = 'comment_date_gmt'; // Hard code for now $number = absint($number); $offset = absint($offset); if ( !empty($number) ) { if ( $offset ) $number = 'LIMIT ' . $offset . ',' . $number; else $number = 'LIMIT ' . $number; } else { $number = ''; } if ( ! empty($post_id) ) $post_where = $wpdb->prepare( 'comment_post_ID = %d AND', $post_id ); else $post_where = ''; $comments = $wpdb->get_results( "SELECT * FROM $wpdb->comments WHERE $post_where $approved ORDER BY $orderby $order $number" ); wp_cache_add( $cache_key, $comments, 'comment' ); return $comments; } /** * Retrieve all of the WordPress supported comment statuses. * * Comments have a limited set of valid status values, this provides the comment * status values and descriptions. * * @package WordPress * @subpackage Post * @since 2.7.0 * * @return array List of comment statuses. */ function get_comment_statuses( ) { $status = array( 'hold' => __('Unapproved'), 'approve' => __('Approved'), 'spam' => _c('Spam|adjective'), ); return $status; } /** * The date the last comment was modified. * * @since 1.5.0 * @uses $wpdb * @global array $cache_lastcommentmodified * * @param string $timezone Which timezone to use in reference to 'gmt', 'blog', * or 'server' locations. * @return string Last comment modified date. */ function get_lastcommentmodified($timezone = 'server') { global $cache_lastcommentmodified, $wpdb; if ( isset($cache_lastcommentmodified[$timezone]) ) return $cache_lastcommentmodified[$timezone]; $add_seconds_server = date('Z'); switch ( strtolower($timezone)) { case 'gmt': $lastcommentmodified = $wpdb->get_var("SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1"); break; case 'blog': $lastcommentmodified = $wpdb->get_var("SELECT comment_date FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1"); break; case 'server': $lastcommentmodified = $wpdb->get_var($wpdb->prepare("SELECT DATE_ADD(comment_date_gmt, INTERVAL %s SECOND) FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1", $add_seconds_server)); break; } $cache_lastcommentmodified[$timezone] = $lastcommentmodified; return $lastcommentmodified; } /** * The amount of comments in a post or total comments. * * A lot like {@link wp_count_comments()}, in that they both return comment * stats (albeit with different types). The {@link wp_count_comments()} actual * caches, but this function does not. * * @since 2.0.0 * @uses $wpdb * * @param int $post_id Optional. Comment amount in post if > 0, else total comments blog wide. * @return array The amount of spam, approved, awaiting moderation, and total comments. */ function get_comment_count( $post_id = 0 ) { global $wpdb; $post_id = (int) $post_id; $where = ''; if ( $post_id > 0 ) { $where = $wpdb->prepare("WHERE comment_post_ID = %d", $post_id); } $totals = (array) $wpdb->get_results(" SELECT comment_approved, COUNT( * ) AS total FROM {$wpdb->comments} {$where} GROUP BY comment_approved ", ARRAY_A); $comment_count = array( "approved" => 0, "awaiting_moderation" => 0, "spam" => 0, "total_comments" => 0 ); foreach ( $totals as $row ) { switch ( $row['comment_approved'] ) { case 'spam': $comment_count['spam'] = $row['total']; $comment_count["total_comments"] += $row['total']; break; case 1: $comment_count['approved'] = $row['total']; $comment_count['total_comments'] += $row['total']; break; case 0: $comment_count['awaiting_moderation'] = $row['total']; $comment_count['total_comments'] += $row['total']; break; default: break; } } return $comment_count; } /** * Sanitizes the cookies sent to the user already. * * Will only do anything if the cookies have already been created for the user. * Mostly used after cookies had been sent to use elsewhere. * * @since 2.0.4 */ function sanitize_comment_cookies() { if ( isset($_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); $_COOKIE['comment_author_url_'.COOKIEHASH] = $comment_author_url; } } /** * Validates whether this comment is allowed to be made or not. * * @since 2.0.0 * @uses $wpdb * @uses apply_filters() Calls 'pre_comment_approved' hook on the type of comment * @uses do_action() Calls 'check_comment_flood' hook on $comment_author_IP, $comment_author_email, and $comment_date_gmt * * @param array $commentdata Contains information on the comment * @return mixed Signifies the approval status (0|1|'spam') */ function wp_allow_comment($commentdata) { global $wpdb; extract($commentdata, EXTR_SKIP); // Simple duplicate check // expected_slashed ($comment_post_ID, $comment_author, $comment_author_email, $comment_content) $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) ) { if ( defined('DOING_AJAX') ) die( __('Duplicate comment detected; it looks as though you\'ve already said that!') ); wp_die( __('Duplicate comment detected; it looks as though you\'ve already said that!') ); } do_action( 'check_comment_flood', $comment_author_IP, $comment_author_email, $comment_date_gmt ); if ( $user_id ) { $userdata = get_userdata($user_id); $user = new WP_User($user_id); $post_author = $wpdb->get_var($wpdb->prepare("SELECT post_author FROM $wpdb->posts WHERE ID = %d LIMIT 1", $comment_post_ID)); } if ( isset($userdata) && ( $user_id == $post_author || $user->has_cap('moderate_comments') ) ) { // The author and the admins get respect. $approved = 1; } else { // Everyone else's comments will be checked. // Rewritten nov 2013 to make linky spam go straight to spam. $approved = check_comment($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent, $comment_type); if ( wp_blacklist_check($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; } /** * Check whether comment flooding is occurring. * * Won't run, if current user can manage options, so to not block * administrators. * * @since 2.3.0 * @uses $wpdb * @uses apply_filters() Calls 'comment_flood_filter' filter with first * parameter false, last comment timestamp, new comment timestamp. * @uses do_action() Calls 'comment_flood_trigger' action with parameters with * last comment timestamp and new comment timestamp. * * @param string $ip Comment IP. * @param string $email Comment author email address. * @param string $date MySQL time string. */ function check_comment_flood_db( $ip, $email, $date ) { global $wpdb; if ( current_user_can( 'manage_options' ) ) return; // don't throttle admins if ( $lasttime = $wpdb->get_var( $wpdb->prepare("SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_author_IP = %s OR comment_author_email = %s ORDER BY comment_date DESC LIMIT 1", $ip, $email) ) ) { $time_lastcomment = mysql2date('U', $lasttime); $time_newcomment = mysql2date('U', $date); $flood_die = apply_filters('comment_flood_filter', false, $time_lastcomment, $time_newcomment); if ( $flood_die ) { do_action('comment_flood_trigger', $time_lastcomment, $time_newcomment); if ( defined('DOING_AJAX') ) die( __('You are posting comments too quickly. Slow down.') ); wp_die( __('You are posting comments too quickly. Slow down.'), '', array('response' => 403) ); } } } /** * Separates an array of comments into an array keyed by comment_type. * * @since 2.7.0 * * @param array $comments Array of comments * @return array Array of comments keyed by comment_type. */ function &separate_comments(&$comments) { $comments_by_type = array('comment' => array(), 'trackback' => array(), 'pingback' => array(), 'pings' => array()); $count = count($comments); for ( $i = 0; $i < $count; $i++ ) { $type = $comments[$i]->comment_type; if ( empty($type) ) $type = 'comment'; $comments_by_type[$type][] = &$comments[$i]; if ( 'trackback' == $type || 'pingback' == $type ) $comments_by_type['pings'][] = &$comments[$i]; } return $comments_by_type; } /** * Calculate the total number of comment pages. * * @since 2.7.0 * @uses get_query_var() Used to fill in the default for $per_page parameter. * @uses get_option() Used to fill in defaults for parameters. * @uses Walker_Comment * * @param array $comments Optional array of comment objects. Defaults to $wp_query->comments * @param int $per_page Optional comments per page. * @param boolean $threaded Optional control over flat or threaded comments. * @return int Number of comment pages. */ function get_comment_pages_count( $comments = null, $per_page = null, $threaded = null ) { global $wp_query; if ( null === $comments && null === $per_page && null === $threaded && !empty($wp_query->max_num_comment_pages) ) return $wp_query->max_num_comment_pages; if ( !$comments || !is_array($comments) ) $comments = $wp_query->comments; if ( empty($comments) ) return 0; if ( !isset($per_page) ) $per_page = (int) get_query_var('comments_per_page'); if ( 0 === $per_page ) $per_page = (int) get_option('comments_per_page'); if ( 0 === $per_page ) return 1; if ( !isset($threaded) ) $threaded = get_option('thread_comments'); if ( $threaded ) { $walker = new Walker_Comment; $count = ceil( $walker->get_number_of_root_elements( $comments ) / $per_page ); } else { $count = ceil( count( $comments ) / $per_page ); } return $count; } /** * Calculate what page number a comment will appear on for comment paging. * * @since 2.7.0 * @uses get_comment() Gets the full comment of the $comment_ID parameter. * @uses get_option() Get various settings to control function and defaults. * @uses get_page_of_comment() Used to loop up to top level comment. * * @param int $comment_ID Comment ID. * @param array $args Optional args. * @return int|null Comment page number or null on error. */ function get_page_of_comment( $comment_ID, $args = array() ) { global $wpdb; if ( !$comment = get_comment( $comment_ID ) ) return; $defaults = array( 'type' => 'all', 'page' => '', 'per_page' => '', 'max_depth' => '' ); $args = wp_parse_args( $args, $defaults ); if ( '' === $args['per_page'] && get_option('page_comments') ) $args['per_page'] = get_query_var('comments_per_page'); if ( empty($args['per_page']) ) { $args['per_page'] = 0; $args['page'] = 0; } if ( $args['per_page'] < 1 ) return 1; if ( '' === $args['max_depth'] ) { if ( get_option('thread_comments') ) $args['max_depth'] = get_option('thread_comments_depth'); else $args['max_depth'] = -1; } // Find this comment's top level parent if threading is enabled if ( $args['max_depth'] > 1 && 0 != $comment->comment_parent ) return get_page_of_comment( $comment->comment_parent, $args ); $allowedtypes = array( 'comment' => '', 'pingback' => 'pingback', 'trackback' => 'trackback', ); $comtypewhere = ( 'all' != $args['type'] && isset($allowedtypes[$args['type']]) ) ? " AND comment_type = '" . $allowedtypes[$args['type']] . "'" : ''; // Count comments older than this one $oldercoms = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(comment_ID) FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_parent = 0 AND comment_date_gmt < '%s'" . $comtypewhere, $comment->comment_post_ID, $comment->comment_date_gmt ) ); // No older comments? Then it's page #1. if ( 0 == $oldercoms ) return 1; // Divide comments older than this one by comments per page to get this comment's page number return ceil( ( $oldercoms + 1 ) / $args['per_page'] ); } /** * Does comment contain blacklisted characters or words. * * @since 1.5.0 * @uses do_action() Calls 'wp_blacklist_check' hook for all parameters. * * @param string $author The author of the comment * @param string $email The email of the comment * @param string $url The url used in the comment * @param string $comment The comment content * @param string $user_ip The comment author IP address * @param string $user_agent The author's browser user agent * @return bool True if comment contains blacklisted content, false if comment does not */ function wp_blacklist_check($author, $email, $url, $comment, $user_ip, $user_agent) { 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; } /** * Retrieve total comments for blog or single post. * * The properties of the returned object contain the 'moderated', 'approved', * and spam comments for either the entire blog or single post. Those properties * contain the amount of comments that match the status. The 'total_comments' * property contains the integer of total comments. * * The comment stats are cached and then retrieved, if they already exist in the * cache. * * @since 2.5.0 * * @param int $post_id Optional. Post ID. * @return object Comment stats. */ function wp_count_comments( $post_id = 0 ) { global $wpdb; $post_id = (int) $post_id; $stats = apply_filters('wp_count_comments', array(), $post_id); if ( !empty($stats) ) return $stats; $count = wp_cache_get("comments-{$post_id}", 'counts'); if ( false !== $count ) return $count; $where = ''; if( $post_id > 0 ) $where = $wpdb->prepare( "WHERE comment_post_ID = %d", $post_id ); $count = $wpdb->get_results( "SELECT comment_approved, COUNT( * ) AS num_comments FROM {$wpdb->comments} {$where} GROUP BY comment_approved", ARRAY_A ); $total = 0; $approved = array('0' => 'moderated', '1' => 'approved', 'spam' => 'spam'); $known_types = array_keys( $approved ); foreach( (array) $count as $row_num => $row ) { $total += $row['num_comments']; if ( in_array( $row['comment_approved'], $known_types ) ) $stats[$approved[$row['comment_approved']]] = $row['num_comments']; } $stats['total_comments'] = $total; foreach ( $approved as $key ) { if ( empty($stats[$key]) ) $stats[$key] = 0; } $stats = (object) $stats; wp_cache_set("comments-{$post_id}", $stats, 'counts'); return $stats; } /** * Removes comment ID and maybe updates post comment count. * * The post comment count will be updated if the comment was approved and has a * post ID available. * * @since 2.0.0 * @uses $wpdb * @uses do_action() Calls 'delete_comment' hook on comment ID * @uses do_action() Calls 'wp_set_comment_status' hook on comment ID with 'delete' set for the second parameter * @uses wp_transition_comment_status() Passes new and old comment status along with $comment object * * @param int $comment_id Comment ID * @return bool False if delete comment query failure, true on success. */ function wp_delete_comment($comment_id) { global $wpdb; do_action('delete_comment', $comment_id); $comment = get_comment($comment_id); if ( ! $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->comments WHERE comment_ID = %d LIMIT 1", $comment_id) ) ) return false; $post_id = $comment->comment_post_ID; if ( $post_id && $comment->comment_approved == 1 ) wp_update_comment_count($post_id); clean_comment_cache($comment_id); do_action('wp_set_comment_status', $comment_id, 'delete'); wp_transition_comment_status('delete', $comment->comment_approved, $comment); return true; } /** * The status of a comment by ID. * * @since 1.0.0 * * @param int $comment_id Comment ID * @return string|bool Status might be 'deleted', 'approved', 'unapproved', 'spam'. False on failure. */ function wp_get_comment_status($comment_id) { $comment = get_comment($comment_id); if ( !$comment ) return false; $approved = $comment->comment_approved; if ( $approved == NULL ) return 'deleted'; elseif ( $approved == '1' ) return 'approved'; elseif ( $approved == '0' ) return 'unapproved'; elseif ( $approved == 'spam' ) return 'spam'; else return false; } /** * Call hooks for when a comment status transition occurs. * * Calls hooks for comment status transitions. If the new comment status is not the same * as the previous comment status, then two hooks will be ran, the first is * 'transition_comment_status' with new status, old status, and comment data. The * next action called is 'comment_OLDSTATUS_to_NEWSTATUS' the NEWSTATUS is the * $new_status parameter and the OLDSTATUS is $old_status parameter; it has the * comment data. * * The final action will run whether or not the comment statuses are the same. The * action is named 'comment_NEWSTATUS_COMMENTTYPE', NEWSTATUS is from the $new_status * parameter and COMMENTTYPE is comment_type comment data. * * @since 2.7.0 * * @param string $new_status New comment status. * @param string $old_status Previous comment status. * @param object $comment Comment data. */ function wp_transition_comment_status($new_status, $old_status, $comment) { // Translate raw statuses to human readable formats for the hooks // This is not a complete list of comment status, it's only the ones that need to be renamed $comment_statuses = array( 0 => 'unapproved', 'hold' => 'unapproved', // wp_set_comment_status() uses "hold" 1 => 'approved', 'approve' => 'approved', // wp_set_comment_status() uses "approve" ); if ( isset($comment_statuses[$new_status]) ) $new_status = $comment_statuses[$new_status]; if ( isset($comment_statuses[$old_status]) ) $old_status = $comment_statuses[$old_status]; // Call the hooks if ( $new_status != $old_status ) { do_action('transition_comment_status', $new_status, $old_status, $comment); do_action("comment_${old_status}_to_$new_status", $comment); } do_action("comment_${new_status}_$comment->comment_type", $comment->comment_ID, $comment); } /** * Get current commenter's name, email, and URL. * * Expects cookies content to already be sanitized. User of this function might * wish to recheck the returned array for validity. * * @see sanitize_comment_cookies() Use to sanitize cookies * * @since 2.0.4 * * @return array Comment author, email, url respectively. */ 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'); } /** * Inserts a comment to the database. * * The available comment data key names are 'comment_author_IP', 'comment_date', * 'comment_date_gmt', 'comment_parent', 'comment_approved', and 'user_id'. * * @since 2.0.0 * @uses $wpdb * * @param array $commentdata Contains information on the comment. * @return int The new comment's ID. */ function wp_insert_comment($commentdata) { global $wpdb; extract(stripslashes_deep($commentdata), EXTR_SKIP); if ( ! isset($comment_author_IP) ) $comment_author_IP = ''; if ( ! isset($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) ) $user_id = 0; if ( ! isset($comment_type) ) $comment_type = ''; $result = $wpdb->query( $wpdb->prepare("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 (%d, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %d, %d)", $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; } /** * Filters and sanitizes comment data. * * Sets the comment data 'filtered' field to true when finished. This can be * checked as to whether the comment should be filtered and to keep from * filtering the same comment more than once. * * @since 2.0.0 * @uses apply_filters() Calls 'pre_user_id' hook on comment author's user ID * @uses apply_filters() Calls 'pre_comment_user_agent' hook on comment author's user agent * @uses apply_filters() Calls 'pre_comment_author_name' hook on comment author's name * @uses apply_filters() Calls 'pre_comment_content' hook on the comment's content * @uses apply_filters() Calls 'pre_comment_user_ip' hook on comment author's IP * @uses apply_filters() Calls 'pre_comment_author_url' hook on comment author's URL * @uses apply_filters() Calls 'pre_comment_author_email' hook on comment author's email address * * @param array $commentdata Contains information on the comment. * @return array Parsed comment information. */ function wp_filter_comment($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; } /** * Whether comment should be blocked because of comment flood. * * @since 2.1.0 * * @param bool $block Whether plugin has already blocked comment. * @param int $time_lastcomment Timestamp for last comment. * @param int $time_newcomment Timestamp for new comment. * @return bool Whether comment should be blocked. */ function wp_throttle_comment_flood($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; } /** * Adds a new comment to the database. * * Filters new comment to ensure that the fields are sanitized and valid before * inserting comment into database. Calls 'comment_post' action with comment ID * and whether comment is approved by WordPress. Also has 'preprocess_comment' * filter for processing the comment data before the function handles it. * * @since 1.5.0 * @uses apply_filters() Calls 'preprocess_comment' hook on $commentdata parameter array before processing * @uses do_action() Calls 'comment_post' hook on $comment_ID returned from adding the comment and if the comment was approved. * @uses wp_filter_comment() Used to filter comment before adding comment. * @uses wp_allow_comment() checks to see if comment is approved. * @uses wp_insert_comment() Does the actual comment insertion to the database. * * @param array $commentdata Contains information on the comment. * @return int The ID of the comment after adding. */ 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']; $commentdata['comment_parent'] = absint($commentdata['comment_parent']); $parent_status = ( 0 < $commentdata['comment_parent'] ) ? wp_get_comment_status($commentdata['comment_parent']) : ''; $commentdata['comment_parent'] = ( 'approved' == $parent_status || 'unapproved' == $parent_status ) ? $commentdata['comment_parent'] : 0; $commentdata['comment_author_IP'] = preg_replace( '/[^0-9a-fA-F:., ]/', '',$_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; } /** * Sets the status of a comment. * * The 'wp_set_comment_status' action is called after the comment is handled and * will only be called, if the comment status is either 'hold', 'approve', or * 'spam'. If the comment status is not in the list, then false is returned and * if the status is 'delete', then the comment is deleted without calling the * action. * * @since 1.0.0 * @uses wp_transition_comment_status() Passes new and old comment status along with $comment object * * @param int $comment_id Comment ID. * @param string $comment_status New comment status, either 'hold', 'approve', 'spam', or 'delete'. * @return bool False on failure or deletion and true on success. */ function wp_set_comment_status($comment_id, $comment_status) { global $wpdb; switch ( $comment_status ) { case 'hold': $query = $wpdb->prepare("UPDATE $wpdb->comments SET comment_approved='0' WHERE comment_ID = %d LIMIT 1", $comment_id); break; case 'approve': $query = $wpdb->prepare("UPDATE $wpdb->comments SET comment_approved='1' WHERE comment_ID = %d LIMIT 1", $comment_id); if ( get_option('comments_notify') ) { $comment = get_comment($comment_id); wp_notify_postauthor($comment_id, $comment->comment_type); } break; case 'spam': $query = $wpdb->prepare("UPDATE $wpdb->comments SET comment_approved='spam' WHERE comment_ID = %d LIMIT 1", $comment_id); break; case 'delete': return wp_delete_comment($comment_id); break; default: return false; } if ( !$wpdb->query($query) ) return false; clean_comment_cache($comment_id); $comment = get_comment($comment_id); do_action('wp_set_comment_status', $comment_id, $comment_status); wp_transition_comment_status($comment_status, $comment->comment_approved, $comment); wp_update_comment_count($comment->comment_post_ID); return true; } /** * Updates an existing comment in the database. * * Filters the comment and makes sure certain fields are valid before updating. * * @since 2.0.0 * @uses $wpdb * @uses wp_transition_comment_status() Passes new and old comment status along with $comment object * * @param array $commentarr Contains information on the comment. * @return int Comment was updated if value is 1, or was not updated if value is 0. */ function wp_update_comment($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( $commentarr ); // Now extract the merged array. extract(stripslashes_deep($commentarr), EXTR_SKIP); $comment_content = apply_filters('comment_save_pre', $comment_content); $comment_date_gmt = get_gmt_from_date($comment_date); if ( !isset($comment_approved) ) $comment_approved = 1; else if ( 'hold' == $comment_approved ) $comment_approved = 0; else if ( 'approve' == $comment_approved ) $comment_approved = 1; $wpdb->query( $wpdb->prepare("UPDATE $wpdb->comments SET comment_content = %s, comment_author = %s, comment_author_email = %s, comment_approved = %s, comment_author_url = %s, comment_date = %s, comment_date_gmt = %s WHERE comment_ID = %d", $comment_content, $comment_author, $comment_author_email, $comment_approved, $comment_author_url, $comment_date, $comment_date_gmt, $comment_ID) ); $rval = $wpdb->rows_affected; clean_comment_cache($comment_ID); wp_update_comment_count($comment_post_ID); do_action('edit_comment', $comment_ID); $comment = get_comment($comment_ID); wp_transition_comment_status($comment_approved, $comment->comment_approved, $comment); return $rval; } /** * Whether to defer comment counting. * * When setting $defer to true, all post comment counts will not be updated * until $defer is set to false. When $defer is set to false, then all * previously deferred updated post comment counts will then be automatically * updated without having to call wp_update_comment_count() after. * * @since 2.5.0 * @staticvar bool $_defer * * @param bool $defer * @return unknown */ function wp_defer_comment_counting($defer=null) { static $_defer = false; if ( is_bool($defer) ) { $_defer = $defer; // flush any deferred counts if ( !$defer ) wp_update_comment_count( null, true ); } return $_defer; } /** * Updates the comment count for post(s). * * When $do_deferred is false (is by default) and the comments have been set to * be deferred, the post_id will be added to a queue, which will be updated at a * later date and only updated once per post ID. * * If the comments have not be set up to be deferred, then the post will be * updated. When $do_deferred is set to true, then all previous deferred post * IDs will be updated along with the current $post_id. * * @since 2.1.0 * @see wp_update_comment_count_now() For what could cause a false return value * * @param int $post_id Post ID * @param bool $do_deferred Whether to process previously deferred post comment counts * @return bool True on success, false on failure */ function wp_update_comment_count($post_id, $do_deferred=false) { static $_deferred = array(); if ( $do_deferred ) { $_deferred = array_unique($_deferred); foreach ( $_deferred as $i => $_post_id ) { wp_update_comment_count_now($_post_id); unset( $_deferred[$i] ); /** @todo Move this outside of the foreach and reset $_deferred to an array instead */ } } if ( wp_defer_comment_counting() ) { $_deferred[] = $post_id; return true; } elseif ( $post_id ) { return wp_update_comment_count_now($post_id); } } /** * Updates the comment count for the post. * * @since 2.5.0 * @uses $wpdb * @uses do_action() Calls 'wp_update_comment_count' hook on $post_id, $new, and $old * @uses do_action() Calls 'edit_posts' hook on $post_id and $post * * @param int $post_id Post ID * @return bool False on '0' $post_id or if post with ID does not exist. True on success. */ function wp_update_comment_count_now($post_id) { global $wpdb; $post_id = (int) $post_id; if ( !$post_id ) return false; if ( !$post = get_post($post_id) ) return false; $old = (int) $post->comment_count; $new = (int) $wpdb->get_var( $wpdb->prepare("SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved = '1'", $post_id) ); $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET comment_count = %d WHERE ID = %d", $new, $post_id) ); if ( 'page' == $post->post_type ) clean_page_cache( $post_id ); else clean_post_cache( $post_id ); do_action('wp_update_comment_count', $post_id, $new, $old); do_action('edit_post', $post_id, $post); return true; } // // Ping and trackback functions. // /** * Finds a pingback server URI based on the given URL. * * Checks the HTML for the rel="pingback" link and x-pingback headers. It does * a check for the x-pingback headers first and returns that, if available. The * check for the rel="pingback" has more overhead than just the header. * * @since 1.5.0 * * @param string $url URL to ping. * @param int $deprecated Not Used. * @return bool|string False on failure, string containing URI on success. */ function discover_pingback_server_uri($url, $deprecated = 2048) { $pingback_str_dquote = 'rel="pingback"'; $pingback_str_squote = 'rel=\'pingback\''; /** @todo Should use Filter Extension or custom preg_match instead. */ $parsed_url = parse_url($url); if ( ! isset( $parsed_url['host'] ) ) // Not an URL. This should never happen. return false; $response = wp_remote_get( $url, array( 'timeout' => 2, 'httpversion' => '1.1' ) ); if ( is_wp_error( $response ) ) return false; if ( isset( $response['headers']['x-pingback'] ) ) return $response['headers']['x-pingback']; // Not an (x)html, sgml, or xml page, no use going further. if ( isset( $response['headers']['content-type'] ) && preg_match('#(image|audio|video|model)/#is', $response['headers']['content-type']) ) return false; $contents = $response['body']; $pingback_link_offset_dquote = strpos($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; } } return false; } /** * Perform all pingbacks, enclosures, trackbacks, and send to pingback services. * * @since 2.1.0 * @uses $wpdb */ 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( $wpdb->prepare("DELETE FROM {$wpdb->postmeta} WHERE post_id = %d AND meta_key = '_encloseme';", $enclosure->ID) ); do_enclose($enclosure->post_content, $enclosure->ID); } // Do Trackbacks $trackbacks = $wpdb->get_col("SELECT ID FROM $wpdb->posts WHERE to_ping <> '' AND post_status = 'publish'"); if ( is_array($trackbacks) ) foreach ( $trackbacks as $trackback ) do_trackbacks($trackback); //Do Update Services/Generic Pings generic_ping(); } /** * Perform trackbacks. * * @since 1.5.0 * @uses $wpdb * * @param int $post_id Post ID to do trackbacks on. */ function do_trackbacks($post_id) { global $wpdb; $post = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d", $post_id) ); $to_ping = get_to_ping($post_id); $pinged = get_pung($post_id); if ( empty($to_ping) ) { $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET to_ping = '' WHERE ID = %d", $post_id) ); return; } if ( empty($post->post_excerpt) ) $excerpt = apply_filters('the_content', $post->post_content); else $excerpt = apply_filters('the_excerpt', $post->post_excerpt); $excerpt = str_replace(']]>', ']]>', $excerpt); $excerpt = wp_html_excerpt($excerpt, 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( $wpdb->prepare("UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, '$tb_ping', '')) WHERE ID = %d", $post_id) ); } } } } /** * Sends pings to all of the ping site services. * * @since 1.2.0 * * @param int $post_id Post ID. Not actually used. * @return int Same as Post ID from parameter */ function generic_ping($post_id = 0) { $services = get_option('ping_sites'); $services = explode("\n", $services); foreach ( (array) $services as $service ) { $service = trim($service); if ( '' != $service ) weblog_ping($service); } return $post_id; } /** * Pings back the links found in a post. * * @since 0.71 * @uses $wp_version * @uses IXR_Client * * @param string $content Post content to check for links. * @param int $post_ID Post ID. */ function pingback($content, $post_ID) { global $wp_version; include_once(ABSPATH . WPINC . '/class-IXR.php'); // original code by Mort (http://mort.mine.nu:8080) $post_links = array(); $pung = get_pung($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); // 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 ( (array) $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. if ( $test = @parse_url($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 ) { $pingback_server_url = discover_pingback_server_uri($pagelinkedto, 2048); if ( $pingback_server_url ) { @ set_time_limit( 60 ); // Now, the RPC call $pagelinkedfrom = get_permalink($post_ID); // 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, $pagelinkedto) || ( isset($client->error->code) && 48 == $client->error->code ) ) // Already registered add_ping( $post_ID, $pagelinkedto ); } } } /** * Check whether blog is public before returning sites. * * @since 2.1.0 * * @param mixed $sites Will return if blog is public, will not return if not public. * @return mixed Empty string if blog is not public, returns $sites, if site is public. */ function privacy_ping_filter($sites) { if ( '0' != get_option('blog_public') ) return $sites; else return ''; } /** * Send a Trackback. * * Updates database when sending trackback to prevent duplicates. * * @since 0.71 * @uses $wpdb * * @param string $trackback_url URL to send trackbacks. * @param string $title Title of post. * @param string $excerpt Excerpt of post. * @param int $ID Post ID. * @return mixed Database query from update. */ function trackback($trackback_url, $title, $excerpt, $ID) { global $wpdb; if ( empty($trackback_url) ) return; $options = array(); $options['timeout'] = 4; $options['body'] = array( 'title' => $title, 'url' => get_permalink($ID), 'blog_name' => get_option('blogname'), 'excerpt' => $excerpt ); $response = wp_remote_post($trackback_url, $options); if ( is_wp_error( $response ) ) return; $tb_url = addslashes( $trackback_url ); $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET pinged = CONCAT(pinged, '\n', '$tb_url') WHERE ID = %d", $ID) ); return $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, '$tb_url', '')) WHERE ID = %d", $ID) ); } /** * Send a pingback. * * @since 1.2.0 * @uses $wp_version * @uses IXR_Client * * @param string $server Host of blog to connect to. * @param string $path Path to send the ping. */ function weblog_ping($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); } // // Cache // /** * Removes comment ID from the comment cache. * * @since 2.3.0 * @package WordPress * @subpackage Cache * * @param int $id Comment ID to remove from cache */ function clean_comment_cache($id) { wp_cache_delete($id, 'comment'); } /** * Updates the comment cache of given comments. * * Will add the comments in $comments to the cache. If comment ID already exists * in the comment cache then it will not be updated. The comment is added to the * cache using the comment group with the key using the ID of the comments. * * @since 2.3.0 * @package WordPress * @subpackage Cache * * @param array $comments Array of comment row objects */ function update_comment_cache($comments) { foreach ( (array) $comments as $comment ) wp_cache_add($comment->comment_ID, $comment, 'comment'); } // // Internal // /** * Close comments on old posts on the fly, without any extra DB queries. Hooked to the_posts. * * @access private * @since 2.7.0 * * @param object $posts Post data object. * @return object */ function _close_comments_for_old_posts( $posts ) { if ( empty($posts) || !is_single() || !get_option('close_comments_for_old_posts') ) return $posts; $days_old = (int) get_option('close_comments_days_old'); if ( !$days_old ) return $posts; if ( time() - strtotime( $posts[0]->post_date_gmt ) > ( $days_old * 24 * 60 * 60 ) ) { $posts[0]->comment_status = 'closed'; $posts[0]->ping_status = 'closed'; } return $posts; } /** * Close comments on an old post. Hooked to comments_open and pings_open. * * @access private * @since 2.7.0 * * @param bool $open Comments open or closed * @param int $post_id Post ID * @return bool $open */ function _close_comments_for_old_post( $open, $post_id ) { if ( ! $open ) return $open; if ( !get_option('close_comments_for_old_posts') ) return $open; $days_old = (int) get_option('close_comments_days_old'); if ( !$days_old ) return $open; $post = get_post($post_id); if ( time() - strtotime( $post->post_date_gmt ) > ( $days_old * 24 * 60 * 60 ) ) return false; return $open; } ?>