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<?php /** * Core Comment API * * @package WordPress * @subpackage Comment */ /** * Checks whether a comment passes internal checks to be allowed to add. * * If manual comment moderation is set in the administration, then all checks, * regardless of their type and substance, will fail and the function will * return false. * * If the number of links exceeds the amount in the administration, then the * check fails. If any of the parameter contents contain any disallowed words, * then the check fails. * * If the comment author was approved before, then the comment is automatically * approved. * * If all checks pass, the function will return true. * * @since 1.2.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $author Comment author name. * @param string $email Comment author email. * @param string $url Comment author URL. * @param string $comment Content of the comment. * @param string $user_ip Comment author IP address. * @param string $user_agent Comment author User-Agent. * @param string $comment_type Comment type, either user-submitted comment, * trackback, or pingback. * @return bool If all checks pass, true, otherwise false. */ function check_comment( $author, $email, $url, $comment, $user_ip, $user_agent, $comment_type ) { global $wpdb; // If manual moderation is enabled, skip all checks and return false. if ( '1' === get_option( 'comment_moderation' ) ) { return false; } /** This filter is documented in wp-includes/comment-template.php */ $comment = apply_filters( 'comment_text', $comment, null, array() ); // Check for the number of external links if a max allowed number is set. $max_links = get_option( 'comment_max_links' ); if ( $max_links ) { $num_links = preg_match_all( '/<a [^>]*href/i', $comment, $out ); /** * Filters the number of links found in a comment. * * @since 3.0.0 * @since 4.7.0 Added the `$comment` parameter. * * @param int $num_links The number of links found. * @param string $url Comment author's URL. Included in allowed links total. * @param string $comment Content of the comment. */ $num_links = apply_filters( 'comment_max_links_url', $num_links, $url, $comment ); /* * If the number of links in the comment exceeds the allowed amount, * fail the check by returning false. */ if ( $num_links >= $max_links ) { return false; } } $mod_keys = trim( get_option( 'moderation_keys' ) ); // If moderation 'keys' (keywords) are set, process them. if ( ! empty( $mod_keys ) ) { $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 '#' (number of) characters in the spam * words don't break things: */ $word = preg_quote( $word, '#' ); /* * Check the comment fields for moderation keywords. If any are found, * fail the check for the given field by returning false. */ $pattern = "#$word#iu"; 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; } } } /* * Check if the option to approve comments by previously-approved authors is enabled. * * If it is enabled, check whether the comment author has a previously-approved comment, * as well as whether there are any moderation keywords (if set) present in the author * email address. If both checks pass, return true. Otherwise, return false. */ if ( '1' === get_option( 'comment_previously_approved' ) ) { if ( 'trackback' !== $comment_type && 'pingback' !== $comment_type && '' !== $author && '' !== $email ) { $comment_user = get_user_by( 'email', wp_unslash( $email ) ); if ( ! empty( $comment_user->ID ) ) { $ok_to_comment = $wpdb->get_var( $wpdb->prepare( "SELECT comment_approved FROM $wpdb->comments WHERE user_id = %d AND comment_approved = '1' LIMIT 1", $comment_user->ID ) ); } else { // expected_slashed ($author, $email) $ok_to_comment = $wpdb->get_var( $wpdb->prepare( "SELECT comment_approved FROM $wpdb->comments WHERE comment_author = %s AND comment_author_email = %s AND comment_approved = '1' LIMIT 1", $author, $email ) ); } if ( '1' === $ok_to_comment && ( empty( $mod_keys ) || ! str_contains( $email, $mod_keys ) ) ) { return true; } else { return false; } } else { return false; } } return true; } /** * Retrieves the approved comments for a post. * * @since 2.0.0 * @since 4.1.0 Refactored to leverage WP_Comment_Query over a direct query. * * @param int $post_id The ID of the post. * @param array $args { * Optional. See WP_Comment_Query::__construct() for information on accepted arguments. * * @type int $status Comment status to limit results by. Defaults to approved comments. * @type int $post_id Limit results to those affiliated with a given post ID. * @type string $order How to order retrieved comments. Default 'ASC'. * } * @return WP_Comment[]|int[]|int The approved comments, or number of comments if `$count` * argument is true. */ function get_approved_comments( $post_id, $args = array() ) { if ( ! $post_id ) { return array(); } $defaults = array( 'status' => 1, 'post_id' => $post_id, 'order' => 'ASC', ); $parsed_args = wp_parse_args( $args, $defaults ); $query = new WP_Comment_Query(); return $query->query( $parsed_args ); } /** * 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. * * @since 2.0.0 * * @global WP_Comment $comment Global comment object. * * @param WP_Comment|string|int $comment Comment to retrieve. * @param string $output Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which * correspond to a WP_Comment object, an associative array, or a numeric array, * respectively. Default OBJECT. * @return WP_Comment|array|null Depends on $output value. */ function get_comment( $comment = null, $output = OBJECT ) { if ( empty( $comment ) && isset( $GLOBALS['comment'] ) ) { $comment = $GLOBALS['comment']; } if ( $comment instanceof WP_Comment ) { $_comment = $comment; } elseif ( is_object( $comment ) ) { $_comment = new WP_Comment( $comment ); } else { $_comment = WP_Comment::get_instance( $comment ); } if ( ! $_comment ) { return null; } /** * Fires after a comment is retrieved. * * @since 2.3.0 * * @param WP_Comment $_comment Comment data. */ $_comment = apply_filters( 'get_comment', $_comment ); if ( OBJECT === $output ) { return $_comment; } elseif ( ARRAY_A === $output ) { return $_comment->to_array(); } elseif ( ARRAY_N === $output ) { return array_values( $_comment->to_array() ); } return $_comment; } /** * Retrieves a list of comments. * * The comment list can be for the blog as a whole or for an individual post. * * @since 2.7.0 * * @param string|array $args Optional. Array or string of arguments. See WP_Comment_Query::__construct() * for information on accepted arguments. Default empty string. * @return WP_Comment[]|int[]|int List of comments or number of found comments if `$count` argument is true. */ function get_comments( $args = '' ) { $query = new WP_Comment_Query(); return $query->query( $args ); } /** * Retrieves all of the WordPress supported comment statuses. * * Comments have a limited set of valid status values, this provides the comment * status values and descriptions. * * @since 2.7.0 * * @return string[] List of comment status labels keyed by status. */ function get_comment_statuses() { $status = array( 'hold' => __( 'Unapproved' ), 'approve' => _x( 'Approved', 'comment status' ), 'spam' => _x( 'Spam', 'comment status' ), 'trash' => _x( 'Trash', 'comment status' ), ); return $status; } /** * Gets the default comment status for a post type. * * @since 4.3.0 * * @param string $post_type Optional. Post type. Default 'post'. * @param string $comment_type Optional. Comment type. Default 'comment'. * @return string Either 'open' or 'closed'. */ function get_default_comment_status( $post_type = 'post', $comment_type = 'comment' ) { switch ( $comment_type ) { case 'pingback': case 'trackback': $supports = 'trackbacks'; $option = 'ping'; break; default: $supports = 'comments'; $option = 'comment'; break; } // Set the status. if ( 'page' === $post_type ) { $status = 'closed'; } elseif ( post_type_supports( $post_type, $supports ) ) { $status = get_option( "default_{$option}_status" ); } else { $status = 'closed'; } /** * Filters the default comment status for the given post type. * * @since 4.3.0 * * @param string $status Default status for the given post type, * either 'open' or 'closed'. * @param string $post_type Post type. Default is `post`. * @param string $comment_type Type of comment. Default is `comment`. */ return apply_filters( 'get_default_comment_status', $status, $post_type, $comment_type ); } /** * Retrieves the date the last comment was modified. * * @since 1.5.0 * @since 4.7.0 Replaced caching the modified date in a local static variable * with the Object Cache API. * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $timezone Which timezone to use in reference to 'gmt', 'blog', or 'server' locations. * @return string|false Last comment modified date on success, false on failure. */ function get_lastcommentmodified( $timezone = 'server' ) { global $wpdb; $timezone = strtolower( $timezone ); $key = "lastcommentmodified:$timezone"; $comment_modified_date = wp_cache_get( $key, 'timeinfo' ); if ( false !== $comment_modified_date ) { return $comment_modified_date; } switch ( $timezone ) { case 'gmt': $comment_modified_date = $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': $comment_modified_date = $wpdb->get_var( "SELECT comment_date FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1" ); break; case 'server': $add_seconds_server = gmdate( 'Z' ); $comment_modified_date = $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; } if ( $comment_modified_date ) { wp_cache_set( $key, $comment_modified_date, 'timeinfo' ); return $comment_modified_date; } return false; } /** * Retrieves the total comment counts for the whole site or a single post. * * @since 2.0.0 * * @param int $post_id Optional. Restrict the comment counts to the given post. Default 0, which indicates that * comment counts for the whole site will be retrieved. * @return int[] { * The number of comments keyed by their status. * * @type int $approved The number of approved comments. * @type int $awaiting_moderation The number of comments awaiting moderation (a.k.a. pending). * @type int $spam The number of spam comments. * @type int $trash The number of trashed comments. * @type int $post-trashed The number of comments for posts that are in the trash. * @type int $total_comments The total number of non-trashed comments, including spam. * @type int $all The total number of pending or approved comments. * } */ function get_comment_count( $post_id = 0 ) { $post_id = (int) $post_id; $comment_count = array( 'approved' => 0, 'awaiting_moderation' => 0, 'spam' => 0, 'trash' => 0, 'post-trashed' => 0, 'total_comments' => 0, 'all' => 0, ); $args = array( 'count' => true, 'update_comment_meta_cache' => false, 'orderby' => 'none', ); if ( $post_id > 0 ) { $args['post_id'] = $post_id; } $mapping = array( 'approved' => 'approve', 'awaiting_moderation' => 'hold', 'spam' => 'spam', 'trash' => 'trash', 'post-trashed' => 'post-trashed', ); $comment_count = array(); foreach ( $mapping as $key => $value ) { $comment_count[ $key ] = get_comments( array_merge( $args, array( 'status' => $value ) ) ); } $comment_count['all'] = $comment_count['approved'] + $comment_count['awaiting_moderation']; $comment_count['total_comments'] = $comment_count['all'] + $comment_count['spam']; return array_map( 'intval', $comment_count ); } // // Comment meta functions. // /** * Adds meta data field to a comment. * * For historical reasons both the meta key and the meta value are expected to be "slashed" (slashes escaped) on input. * * @since 2.9.0 * * @link https://developer.wordpress.org/reference/functions/add_comment_meta/ * * @param int $comment_id Comment ID. * @param string $meta_key Metadata name. * @param mixed $meta_value Metadata value. Arrays and objects are stored as serialized data and * will be returned as the same type when retrieved. Other data types will * be stored as strings in the database: * - false is stored and retrieved as an empty string ('') * - true is stored and retrieved as '1' * - numbers (both integer and float) are stored and retrieved as strings * Must be serializable if non-scalar. * @param bool $unique Optional. Whether the same key should not be added. * Default false. * @return int|false Meta ID on success, false on failure. */ function add_comment_meta( $comment_id, $meta_key, $meta_value, $unique = false ) { return add_metadata( 'comment', $comment_id, $meta_key, $meta_value, $unique ); } /** * Removes metadata matching criteria from a comment. * * You can match based on the key, or key and value. Removing based on key and * value, will keep from removing duplicate metadata with the same key. It also * allows removing all metadata matching key, if needed. * * For historical reasons both the meta key and the meta value are expected to be "slashed" (slashes escaped) on input. * * @since 2.9.0 * * @link https://developer.wordpress.org/reference/functions/delete_comment_meta/ * * @param int $comment_id Comment ID. * @param string $meta_key Metadata name. * @param mixed $meta_value Optional. Metadata value. If provided, * rows will only be removed that match the value. * Must be serializable if non-scalar. Default empty string. * @return bool True on success, false on failure. */ function delete_comment_meta( $comment_id, $meta_key, $meta_value = '' ) { return delete_metadata( 'comment', $comment_id, $meta_key, $meta_value ); } /** * Retrieves comment meta field for a comment. * * @since 2.9.0 * * @link https://developer.wordpress.org/reference/functions/get_comment_meta/ * * @param int $comment_id Comment ID. * @param string $key Optional. The meta key to retrieve. By default, * returns data for all keys. Default empty string. * @param bool $single Optional. Whether to return a single value. * This parameter has no effect if `$key` is not specified. * Default false. * @return mixed An array of values if `$single` is false. * The value of meta data field if `$single` is true. * False for an invalid `$comment_id` (non-numeric, zero, or negative value). * An empty array if a valid but non-existing comment ID is passed and `$single` is false. * An empty string if a valid but non-existing comment ID is passed and `$single` is true. * Note: Non-serialized values are returned as strings: * - false values are returned as empty strings ('') * - true values are returned as '1' * - numbers are returned as strings * Arrays and objects retain their original type. */ function get_comment_meta( $comment_id, $key = '', $single = false ) { return get_metadata( 'comment', $comment_id, $key, $single ); } /** * Queue comment meta for lazy-loading. * * @since 6.3.0 * * @param array $comment_ids List of comment IDs. */ function wp_lazyload_comment_meta( array $comment_ids ) { if ( empty( $comment_ids ) ) { return; } $lazyloader = wp_metadata_lazyloader(); $lazyloader->queue_objects( 'comment', $comment_ids ); } /** * Updates comment meta field based on comment ID. * * Use the $prev_value parameter to differentiate between meta fields with the * same key and comment ID. * * If the meta field for the comment does not exist, it will be added. * * For historical reasons both the meta key and the meta value are expected to be "slashed" (slashes escaped) on input. * * @since 2.9.0 * * @link https://developer.wordpress.org/reference/functions/update_comment_meta/ * * @param int $comment_id Comment ID. * @param string $meta_key Metadata key. * @param mixed $meta_value Metadata value. Must be serializable if non-scalar. * @param mixed $prev_value Optional. Previous value to check before updating. * If specified, only update existing metadata entries with * this value. Otherwise, update all entries. Default empty string. * @return int|bool Meta ID if the key didn't exist, true on successful update, * false on failure or if the value passed to the function * is the same as the one that is already in the database. */ function update_comment_meta( $comment_id, $meta_key, $meta_value, $prev_value = '' ) { return update_metadata( 'comment', $comment_id, $meta_key, $meta_value, $prev_value ); } /** * Sets the cookies used to store an unauthenticated commentator's identity. Typically used * to recall previous comments by this commentator that are still held in moderation. * * @since 3.4.0 * @since 4.9.6 The `$cookies_consent` parameter was added. * * @param WP_Comment $comment Comment object. * @param WP_User $user Comment author's user object. The user may not exist. * @param bool $cookies_consent Optional. Comment author's consent to store cookies. Default true. */ function wp_set_comment_cookies( $comment, $user, $cookies_consent = true ) { // If the user already exists, or the user opted out of cookies, don't set cookies. if ( $user->exists() ) { return; } if ( false === $cookies_consent ) { // Remove any existing cookies. $past = time() - YEAR_IN_SECONDS; setcookie( 'comment_author_' . COOKIEHASH, ' ', $past, COOKIEPATH, COOKIE_DOMAIN ); setcookie( 'comment_author_email_' . COOKIEHASH, ' ', $past, COOKIEPATH, COOKIE_DOMAIN ); setcookie( 'comment_author_url_' . COOKIEHASH, ' ', $past, COOKIEPATH, COOKIE_DOMAIN ); return; } /** * Filters the lifetime of the comment cookie in seconds. * * @since 2.8.0 * @since 6.6.0 The default $seconds value changed from 30000000 to YEAR_IN_SECONDS. * * @param int $seconds Comment cookie lifetime. Default YEAR_IN_SECONDS. */ $comment_cookie_lifetime = time() + apply_filters( 'comment_cookie_lifetime', YEAR_IN_SECONDS ); $secure = ( 'https' === parse_url( home_url(), PHP_URL_SCHEME ) ); setcookie( 'comment_author_' . COOKIEHASH, $comment->comment_author, $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN, $secure ); setcookie( 'comment_author_email_' . COOKIEHASH, $comment->comment_author_email, $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN, $secure ); setcookie( 'comment_author_url_' . COOKIEHASH, esc_url( $comment->comment_author_url ), $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN, $secure ); } /** * 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 ] ) ) { /** * Filters the comment author's name cookie before it is set. * * When this filter hook is evaluated in wp_filter_comment(), * the comment author's name string is passed. * * @since 1.5.0 * * @param string $author_cookie The comment author name cookie. */ $comment_author = apply_filters( 'pre_comment_author_name', $_COOKIE[ 'comment_author_' . COOKIEHASH ] ); $comment_author = wp_unslash( $comment_author ); $comment_author = esc_attr( $comment_author ); $_COOKIE[ 'comment_author_' . COOKIEHASH ] = $comment_author; } if ( isset( $_COOKIE[ 'comment_author_email_' . COOKIEHASH ] ) ) { /** * Filters the comment author's email cookie before it is set. * * When this filter hook is evaluated in wp_filter_comment(), * the comment author's email string is passed. * * @since 1.5.0 * * @param string $author_email_cookie The comment author email cookie. */ $comment_author_email = apply_filters( 'pre_comment_author_email', $_COOKIE[ 'comment_author_email_' . COOKIEHASH ] ); $comment_author_email = wp_unslash( $comment_author_email ); $comment_author_email = esc_attr( $comment_author_email ); $_COOKIE[ 'comment_author_email_' . COOKIEHASH ] = $comment_author_email; } if ( isset( $_COOKIE[ 'comment_author_url_' . COOKIEHASH ] ) ) { /** * Filters the comment author's URL cookie before it is set. * * When this filter hook is evaluated in wp_filter_comment(), * the comment author's URL string is passed. * * @since 1.5.0 * * @param string $author_url_cookie The comment author URL cookie. */ $comment_author_url = apply_filters( 'pre_comment_author_url', $_COOKIE[ 'comment_author_url_' . COOKIEHASH ] ); $comment_author_url = wp_unslash( $comment_author_url ); $_COOKIE[ 'comment_author_url_' . COOKIEHASH ] = $comment_author_url; } } /** * Validates whether this comment is allowed to be made. * * @since 2.0.0 * @since 4.7.0 The `$avoid_die` parameter was added, allowing the function * to return a WP_Error object instead of dying. * @since 5.5.0 The `$avoid_die` parameter was renamed to `$wp_error`. * * @global wpdb $wpdb WordPress database abstraction object. * * @param array $commentdata Contains information on the comment. * @param bool $wp_error When true, a disallowed comment will result in the function * returning a WP_Error object, rather than executing wp_die(). * Default false. * @return int|string|WP_Error Allowed comments return the approval status (0|1|'spam'|'trash'). * If `$wp_error` is true, disallowed comments return a WP_Error. */ function wp_allow_comment( $commentdata, $wp_error = false ) { global $wpdb; /* * Simple duplicate check. * expected_slashed ($comment_post_ID, $comment_author, $comment_author_email, $comment_content) */ $dupe = $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_parent = %s AND comment_approved != 'trash' AND ( comment_author = %s ", wp_unslash( $commentdata['comment_post_ID'] ), wp_unslash( $commentdata['comment_parent'] ), wp_unslash( $commentdata['comment_author'] ) ); if ( $commentdata['comment_author_email'] ) { $dupe .= $wpdb->prepare( 'AND comment_author_email = %s ', wp_unslash( $commentdata['comment_author_email'] ) ); } $dupe .= $wpdb->prepare( ') AND comment_content = %s LIMIT 1', wp_unslash( $commentdata['comment_content'] ) ); $dupe_id = $wpdb->get_var( $dupe ); /** * Filters the ID, if any, of the duplicate comment found when creating a new comment. * * Return an empty value from this filter to allow what WP considers a duplicate comment. * * @since 4.4.0 * * @param int $dupe_id ID of the comment identified as a duplicate. * @param array $commentdata Data for the comment being created. */ $dupe_id = apply_filters( 'duplicate_comment_id', $dupe_id, $commentdata ); if ( $dupe_id ) { /** * Fires immediately after a duplicate comment is detected. * * @since 3.0.0 * * @param array $commentdata Comment data. */ do_action( 'comment_duplicate_trigger', $commentdata ); /** * Filters duplicate comment error message. * * @since 5.2.0 * * @param string $comment_duplicate_message Duplicate comment error message. */ $comment_duplicate_message = apply_filters( 'comment_duplicate_message', __( 'Duplicate comment detected; it looks as though you’ve already said that!' ) ); if ( $wp_error ) { return new WP_Error( 'comment_duplicate', $comment_duplicate_message, 409 ); } else { if ( wp_doing_ajax() ) { die( $comment_duplicate_message ); } wp_die( $comment_duplicate_message, 409 ); } } /** * Fires immediately before a comment is marked approved. * * Allows checking for comment flooding. * * @since 2.3.0 * @since 4.7.0 The `$avoid_die` parameter was added. * @since 5.5.0 The `$avoid_die` parameter was renamed to `$wp_error`. * * @param string $comment_author_ip Comment author's IP address. * @param string $comment_author_email Comment author's email. * @param string $comment_date_gmt GMT date the comment was posted. * @param bool $wp_error Whether to return a WP_Error object instead of executing * wp_die() or die() if a comment flood is occurring. */ do_action( 'check_comment_flood', $commentdata['comment_author_IP'], $commentdata['comment_author_email'], $commentdata['comment_date_gmt'], $wp_error ); /** * Filters whether a comment is part of a comment flood. * * The default check is wp_check_comment_flood(). See check_comment_flood_db(). * * @since 4.7.0 * @since 5.5.0 The `$avoid_die` parameter was renamed to `$wp_error`. * * @param bool $is_flood Is a comment flooding occurring? Default false. * @param string $comment_author_ip Comment author's IP address. * @param string $comment_author_email Comment author's email. * @param string $comment_date_gmt GMT date the comment was posted. * @param bool $wp_error Whether to return a WP_Error object instead of executing * wp_die() or die() if a comment flood is occurring. */ $is_flood = apply_filters( 'wp_is_comment_flood', false, $commentdata['comment_author_IP'], $commentdata['comment_author_email'], $commentdata['comment_date_gmt'], $wp_error ); if ( $is_flood ) { /** This filter is documented in wp-includes/comment-template.php */ $comment_flood_message = apply_filters( 'comment_flood_message', __( 'You are posting comments too quickly. Slow down.' ) ); return new WP_Error( 'comment_flood', $comment_flood_message, 429 ); } return wp_check_comment_data( $commentdata ); } /** * Hooks WP's native database-based comment-flood check. * * This wrapper maintains backward compatibility with plugins that expect to * be able to unhook the legacy check_comment_flood_db() function from * 'check_comment_flood' using remove_action(). * * @since 2.3.0 * @since 4.7.0 Converted to be an add_filter() wrapper. */ function check_comment_flood_db() { add_filter( 'wp_is_comment_flood', 'wp_check_comment_flood', 10, 5 ); } /** * Checks whether comment flooding is occurring. * * Won't run, if current user can manage options, so to not block * administrators. * * @since 4.7.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param bool $is_flood Is a comment flooding occurring? * @param string $ip Comment author's IP address. * @param string $email Comment author's email address. * @param string $date MySQL time string. * @param bool $avoid_die When true, a disallowed comment will result in the function * returning without executing wp_die() or die(). Default false. * @return bool Whether comment flooding is occurring. */ function wp_check_comment_flood( $is_flood, $ip, $email, $date, $avoid_die = false ) { global $wpdb; // Another callback has declared a flood. Trust it. if ( true === $is_flood ) { return $is_flood; } // Don't throttle admins or moderators. if ( current_user_can( 'manage_options' ) || current_user_can( 'moderate_comments' ) ) { return false; } $hour_ago = gmdate( 'Y-m-d H:i:s', time() - HOUR_IN_SECONDS ); if ( is_user_logged_in() ) { $user = get_current_user_id(); $check_column = '`user_id`'; } else { $user = $ip; $check_column = '`comment_author_IP`'; } $sql = $wpdb->prepare( "SELECT `comment_date_gmt` FROM `$wpdb->comments` WHERE `comment_date_gmt` >= %s AND ( $check_column = %s OR `comment_author_email` = %s ) ORDER BY `comment_date_gmt` DESC LIMIT 1", $hour_ago, $user, $email ); $lasttime = $wpdb->get_var( $sql ); if ( $lasttime ) { $time_lastcomment = mysql2date( 'U', $lasttime, false ); $time_newcomment = mysql2date( 'U', $date, false ); /** * Filters the comment flood status. * * @since 2.1.0 * * @param bool $bool Whether a comment flood is occurring. Default false. * @param int $time_lastcomment Timestamp of when the last comment was posted. * @param int $time_newcomment Timestamp of when the new comment was posted. */ $flood_die = apply_filters( 'comment_flood_filter', false, $time_lastcomment, $time_newcomment ); if ( $flood_die ) { /** * Fires before the comment flood message is triggered. * * @since 1.5.0 * * @param int $time_lastcomment Timestamp of when the last comment was posted. * @param int $time_newcomment Timestamp of when the new comment was posted. */ do_action( 'comment_flood_trigger', $time_lastcomment, $time_newcomment ); if ( $avoid_die ) { return true; } else { /** * Filters the comment flood error message. * * @since 5.2.0 * * @param string $comment_flood_message Comment flood error message. */ $comment_flood_message = apply_filters( 'comment_flood_message', __( 'You are posting comments too quickly. Slow down.' ) ); if ( wp_doing_ajax() ) { die( $comment_flood_message ); } wp_die( $comment_flood_message, 429 ); } } } return false; } /** * Separates an array of comments into an array keyed by comment_type. * * @since 2.7.0 * * @param WP_Comment[] $comments Array of comments. * @return array<string, WP_Comment[]> Array of comments keyed by comment type. */ function separate_comments( &$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; } /** * Calculates the total number of comment pages. * * @since 2.7.0 * * @uses Walker_Comment * * @global WP_Query $wp_query WordPress Query object. * * @param WP_Comment[] $comments Optional. Array of WP_Comment objects. Defaults to `$wp_query->comments`. * @param int $per_page Optional. Comments per page. Defaults to the value of `comments_per_page` * query var, option of the same name, or 1 (in that order). * @param bool $threaded Optional. Control over flat or threaded comments. Defaults to the value * of `thread_comments` option. * @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 ) ) && ! empty( $wp_query->comments ) ) { $comments = $wp_query->comments; } if ( empty( $comments ) ) { return 0; } if ( ! get_option( 'page_comments' ) ) { return 1; } 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 (int) $count; } /** * Calculates what page number a comment will appear on for comment paging. * * @since 2.7.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $comment_id Comment ID. * @param array $args { * Array of optional arguments. * * @type string $type Limit paginated comments to those matching a given type. * Accepts 'comment', 'trackback', 'pingback', 'pings' * (trackbacks and pingbacks), or 'all'. Default 'all'. * @type int $per_page Per-page count to use when calculating pagination. * Defaults to the value of the 'comments_per_page' option. * @type int|string $max_depth If greater than 1, comment page will be determined * for the top-level parent `$comment_id`. * Defaults to the value of the 'thread_comments_depth' option. * } * @return int|null Comment page number or null on error. */ function get_page_of_comment( $comment_id, $args = array() ) { global $wpdb; $page = null; $comment = get_comment( $comment_id ); if ( ! $comment ) { return null; } $defaults = array( 'type' => 'all', 'page' => '', 'per_page' => '', 'max_depth' => '', ); $args = wp_parse_args( $args, $defaults ); $original_args = $args; // Order of precedence: 1. `$args['per_page']`, 2. 'comments_per_page' query_var, 3. 'comments_per_page' option. if ( get_option( 'page_comments' ) ) { if ( '' === $args['per_page'] ) { $args['per_page'] = get_query_var( 'comments_per_page' ); } if ( '' === $args['per_page'] ) { $args['per_page'] = get_option( 'comments_per_page' ); } } if ( empty( $args['per_page'] ) ) { $args['per_page'] = 0; $args['page'] = 0; } if ( $args['per_page'] < 1 ) { $page = 1; } if ( null === $page ) { 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 ); } $comment_args = array( 'type' => $args['type'], 'post_id' => $comment->comment_post_ID, 'fields' => 'ids', 'count' => true, 'status' => 'approve', 'orderby' => 'none', 'parent' => 0, 'date_query' => array( array( 'column' => "$wpdb->comments.comment_date_gmt", 'before' => $comment->comment_date_gmt, ), ), ); if ( is_user_logged_in() ) { $comment_args['include_unapproved'] = array( get_current_user_id() ); } else { $unapproved_email = wp_get_unapproved_comment_author_email(); if ( $unapproved_email ) { $comment_args['include_unapproved'] = array( $unapproved_email ); } } /** * Filters the arguments used to query comments in get_page_of_comment(). * * @since 5.5.0 * * @see WP_Comment_Query::__construct() * * @param array $comment_args { * Array of WP_Comment_Query arguments. * * @type string $type Limit paginated comments to those matching a given type. * Accepts 'comment', 'trackback', 'pingback', 'pings' * (trackbacks and pingbacks), or 'all'. Default 'all'. * @type int $post_id ID of the post. * @type string $fields Comment fields to return. * @type bool $count Whether to return a comment count (true) or array * of comment objects (false). * @type string $status Comment status. * @type int $parent Parent ID of comment to retrieve children of. * @type array $date_query Date query clauses to limit comments by. See WP_Date_Query. * @type array $include_unapproved Array of IDs or email addresses whose unapproved comments * will be included in paginated comments. * } */ $comment_args = apply_filters( 'get_page_of_comment_query_args', $comment_args ); $comment_query = new WP_Comment_Query(); $older_comment_count = $comment_query->query( $comment_args ); // No older comments? Then it's page #1. if ( 0 === $older_comment_count ) { $page = 1; // Divide comments older than this one by comments per page to get this comment's page number. } else { $page = (int) ceil( ( $older_comment_count + 1 ) / $args['per_page'] ); } } /** * Filters the calculated page on which a comment appears. * * @since 4.4.0 * @since 4.7.0 Introduced the `$comment_id` parameter. * * @param int $page Comment page. * @param array $args { * Arguments used to calculate pagination. These include arguments auto-detected by the function, * based on query vars, system settings, etc. For pristine arguments passed to the function, * see `$original_args`. * * @type string $type Type of comments to count. * @type int $page Calculated current page. * @type int $per_page Calculated number of comments per page. * @type int $max_depth Maximum comment threading depth allowed. * } * @param array $original_args { * Array of arguments passed to the function. Some or all of these may not be set. * * @type string $type Type of comments to count. * @type int $page Current comment page. * @type int $per_page Number of comments per page. * @type int $max_depth Maximum comment threading depth allowed. * } * @param int $comment_id ID of the comment. */ return apply_filters( 'get_page_of_comment', (int) $page, $args, $original_args, $comment_id ); } /** * Retrieves the maximum character lengths for the comment form fields. * * @since 4.5.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @return int[] Array of maximum lengths keyed by field name. */ function wp_get_comment_fields_max_lengths() { global $wpdb; $lengths = array( 'comment_author' => 245, 'comment_author_email' => 100, 'comment_author_url' => 200, 'comment_content' => 65525, ); if ( $wpdb->is_mysql ) { foreach ( $lengths as $column => $length ) { $col_length = $wpdb->get_col_length( $wpdb->comments, $column ); $max_length = 0; // No point if we can't get the DB column lengths. if ( is_wp_error( $col_length ) ) { break; } if ( ! is_array( $col_length ) && (int) $col_length > 0 ) { $max_length = (int) $col_length; } elseif ( is_array( $col_length ) && isset( $col_length['length'] ) && (int) $col_length['length'] > 0 ) { $max_length = (int) $col_length['length']; if ( ! empty( $col_length['type'] ) && 'byte' === $col_length['type'] ) { $max_length = $max_length - 10; } } if ( $max_length > 0 ) { $lengths[ $column ] = $max_length; } } } /** * Filters the lengths for the comment form fields. * * @since 4.5.0 * * @param int[] $lengths Array of maximum lengths keyed by field name. */ return apply_filters( 'wp_get_comment_fields_max_lengths', $lengths ); } /** * Compares the lengths of comment data against the maximum character limits. * * @since 4.7.0 * * @param array $comment_data Array of arguments for inserting a comment. * @return WP_Error|true WP_Error when a comment field exceeds the limit, * otherwise true. */ function wp_check_comment_data_max_lengths( $comment_data ) { $max_lengths = wp_get_comment_fields_max_lengths(); if ( isset( $comment_data['comment_author'] ) && mb_strlen( $comment_data['comment_author'], '8bit' ) > $max_lengths['comment_author'] ) { return new WP_Error( 'comment_author_column_length', __( '<strong>Error:</strong> Your name is too long.' ), 200 ); } if ( isset( $comment_data['comment_author_email'] ) && strlen( $comment_data['comment_author_email'] ) > $max_lengths['comment_author_email'] ) { return new WP_Error( 'comment_author_email_column_length', __( '<strong>Error:</strong> Your email address is too long.' ), 200 ); } if ( isset( $comment_data['comment_author_url'] ) && strlen( $comment_data['comment_author_url'] ) > $max_lengths['comment_author_url'] ) { return new WP_Error( 'comment_author_url_column_length', __( '<strong>Error:</strong> Your URL is too long.' ), 200 ); } if ( isset( $comment_data['comment_content'] ) && mb_strlen( $comment_data['comment_content'], '8bit' ) > $max_lengths['comment_content'] ) { return new WP_Error( 'comment_content_column_length', __( '<strong>Error:</strong> Your comment is too long.' ), 200 ); } return true; } /** * Checks whether comment data passes internal checks or has disallowed content. * * @since 6.7.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param array $comment_data Array of arguments for inserting a comment. * @return int|string|WP_Error The approval status on success (0|1|'spam'|'trash'), * WP_Error otherwise. */ function wp_check_comment_data( $comment_data ) { global $wpdb; if ( ! empty( $comment_data['user_id'] ) ) { $user = get_userdata( $comment_data['user_id'] ); $post_author = (int) $wpdb->get_var( $wpdb->prepare( "SELECT post_author FROM $wpdb->posts WHERE ID = %d LIMIT 1", $comment_data['comment_post_ID'] ) ); } if ( isset( $user ) && ( $comment_data['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. if ( check_comment( $comment_data['comment_author'], $comment_data['comment_author_email'], $comment_data['comment_author_url'], $comment_data['comment_content'], $comment_data['comment_author_IP'], $comment_data['comment_agent'], $comment_data['comment_type'] ) ) { $approved = 1; } else { $approved = 0; } if ( wp_check_comment_disallowed_list( $comment_data['comment_author'], $comment_data['comment_author_email'], $comment_data['comment_author_url'], $comment_data['comment_content'], $comment_data['comment_author_IP'], $comment_data['comment_agent'] ) ) { $approved = EMPTY_TRASH_DAYS ? 'trash' : 'spam'; } } /** * Filters a comment's approval status before it is set. * * @since 2.1.0 * @since 4.9.0 Returning a WP_Error value from the filter will short-circuit comment insertion * and allow skipping further processing. * * @param int|string|WP_Error $approved The approval status. Accepts 1, 0, 'spam', 'trash', * or WP_Error. * @param array $commentdata Comment data. */ return apply_filters( 'pre_comment_approved', $approved, $comment_data ); } /** * Checks if a comment contains disallowed characters or words. * * @since 5.5.0 * * @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's IP address. * @param string $user_agent The author's browser user agent. * @return bool True if the comment contains disallowed content, false otherwise. */ function wp_check_comment_disallowed_list( $author, $email, $url, $comment, $user_ip, $user_agent ) { /** * Fires before the comment is tested for disallowed characters or words. * * @since 1.5.0 * @deprecated 5.5.0 Use {@see 'wp_check_comment_disallowed_list'} instead. * * @param string $author Comment author. * @param string $email Comment author's email. * @param string $url Comment author's URL. * @param string $comment Comment content. * @param string $user_ip Comment author's IP address. * @param string $user_agent Comment author's browser user agent. */ do_action_deprecated( 'wp_blacklist_check', array( $author, $email, $url, $comment, $user_ip, $user_agent ), '5.5.0', 'wp_check_comment_disallowed_list', __( 'Please consider writing more inclusive code.' ) ); /** * Fires before the comment is tested for disallowed characters or words. * * @since 5.5.0 * * @param string $author Comment author. * @param string $email Comment author's email. * @param string $url Comment author's URL. * @param string $comment Comment content. * @param string $user_ip Comment author's IP address. * @param string $user_agent Comment author's browser user agent. */ do_action( 'wp_check_comment_disallowed_list', $author, $email, $url, $comment, $user_ip, $user_agent ); $mod_keys = trim( get_option( 'disallowed_keys' ) ); if ( '' === $mod_keys ) { return false; // If moderation keys are empty. } // Ensure HTML tags are not being used to bypass the list of disallowed characters and words. $comment_without_html = wp_strip_all_tags( $comment ); $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#iu"; if ( preg_match( $pattern, $author ) || preg_match( $pattern, $email ) || preg_match( $pattern, $url ) || preg_match( $pattern, $comment ) || preg_match( $pattern, $comment_without_html ) || preg_match( $pattern, $user_ip ) || preg_match( $pattern, $user_agent ) ) { return true; } } return false; } /** * Retrieves the total comment counts for the whole site or a single post. * * The comment stats are cached and then retrieved, if they already exist in the * cache. * * @see get_comment_count() Which handles fetching the live comment counts. * * @since 2.5.0 * * @param int $post_id Optional. Restrict the comment counts to the given post. Default 0, which indicates that * comment counts for the whole site will be retrieved. * @return stdClass { * The number of comments keyed by their status. * * @type int $approved The number of approved comments. * @type int $moderated The number of comments awaiting moderation (a.k.a. pending). * @type int $spam The number of spam comments. * @type int $trash The number of trashed comments. * @type int $post-trashed The number of comments for posts that are in the trash. * @type int $total_comments The total number of non-trashed comments, including spam. * @type int $all The total number of pending or approved comments. * } */ function wp_count_comments( $post_id = 0 ) { $post_id = (int) $post_id; /** * Filters the comments count for a given post or the whole site. * * @since 2.7.0 * * @param array|stdClass $count An empty array or an object containing comment counts. * @param int $post_id The post ID. Can be 0 to represent the whole site. */ $filtered = apply_filters( 'wp_count_comments', array(), $post_id ); if ( ! empty( $filtered ) ) { return $filtered; } $count = wp_cache_get( "comments-{$post_id}", 'counts' ); if ( false !== $count ) { return $count; } $stats = get_comment_count( $post_id ); $stats['moderated'] = $stats['awaiting_moderation']; unset( $stats['awaiting_moderation'] ); $stats_object = (object) $stats; wp_cache_set( "comments-{$post_id}", $stats_object, 'counts' ); return $stats_object; } /** * Trashes or deletes a comment. * * The comment is moved to Trash instead of permanently deleted unless Trash is * disabled, item is already in the Trash, or $force_delete is true. * * The post comment count will be updated if the comment was approved and has a * post ID available. * * @since 2.0.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int|WP_Comment $comment_id Comment ID or WP_Comment object. * @param bool $force_delete Whether to bypass Trash and force deletion. Default false. * @return bool True on success, false on failure. */ function wp_delete_comment( $comment_id, $force_delete = false ) { global $wpdb; $comment = get_comment( $comment_id ); if ( ! $comment ) { return false; } if ( ! $force_delete && EMPTY_TRASH_DAYS && ! in_array( wp_get_comment_status( $comment ), array( 'trash', 'spam' ), true ) ) { return wp_trash_comment( $comment_id ); } /** * Fires immediately before a comment is deleted from the database. * * @since 1.2.0 * @since 4.9.0 Added the `$comment` parameter. * * @param string $comment_id The comment ID as a numeric string. * @param WP_Comment $comment The comment to be deleted. */ do_action( 'delete_comment', $comment->comment_ID, $comment ); // Move children up a level. $children = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_parent = %d", $comment->comment_ID ) ); if ( ! empty( $children ) ) { $wpdb->update( $wpdb->comments, array( 'comment_parent' => $comment->comment_parent ), array( 'comment_parent' => $comment->comment_ID ) ); clean_comment_cache( $children ); } // Delete metadata. $meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->commentmeta WHERE comment_id = %d", $comment->comment_ID ) ); foreach ( $meta_ids as $mid ) { delete_metadata_by_mid( 'comment', $mid ); } if ( ! $wpdb->delete( $wpdb->comments, array( 'comment_ID' => $comment->comment_ID ) ) ) { return false; } /** * Fires immediately after a comment is deleted from the database. * * @since 2.9.0 * @since 4.9.0 Added the `$comment` parameter. * * @param string $comment_id The comment ID as a numeric string. * @param WP_Comment $comment The deleted comment. */ do_action( 'deleted_comment', $comment->comment_ID, $comment ); $post_id = $comment->comment_post_ID; if ( $post_id && '1' === $comment->comment_approved ) { wp_update_comment_count( $post_id ); } clean_comment_cache( $comment->comment_ID ); /** This action is documented in wp-includes/comment.php */ do_action( 'wp_set_comment_status', $comment->comment_ID, 'delete' ); wp_transition_comment_status( 'delete', $comment->comment_approved, $comment ); return true; } /** * Moves a comment to the Trash * * If Trash is disabled, comment is permanently deleted. * * @since 2.9.0 * @since 6.9.0 Any child notes are deleted when deleting a note. * * @param int|WP_Comment $comment_id Comment ID or WP_Comment object. * @return bool True on success, false on failure. */ function wp_trash_comment( $comment_id ) { if ( ! EMPTY_TRASH_DAYS ) { $comment = get_comment( $comment_id ); $success = wp_delete_comment( $comment_id, true ); if ( ! $success ) { return false; } // Also delete children of top level 'note' type comments. if ( $comment && 'note' === $comment->comment_type && 0 === (int) $comment->comment_parent ) { $children = $comment->get_children( array( 'fields' => 'ids', 'status' => 'all', 'type' => 'note', ) ); foreach ( $children as $child_id ) { if ( ! wp_delete_comment( $child_id, true ) ) { $success = false; } } } return $success; } $comment = get_comment( $comment_id ); if ( ! $comment ) { return false; } /** * Fires immediately before a comment is sent to the Trash. * * @since 2.9.0 * @since 4.9.0 Added the `$comment` parameter. * * @param string $comment_id The comment ID as a numeric string. * @param WP_Comment $comment The comment to be trashed. */ do_action( 'trash_comment', $comment->comment_ID, $comment ); if ( wp_set_comment_status( $comment, 'trash' ) ) { delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_status' ); delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_time' ); add_comment_meta( $comment->comment_ID, '_wp_trash_meta_status', $comment->comment_approved ); add_comment_meta( $comment->comment_ID, '_wp_trash_meta_time', time() ); /** * Fires immediately after a comment is sent to Trash. * * @since 2.9.0 * @since 4.9.0 Added the `$comment` parameter. * * @param string $comment_id The comment ID as a numeric string. * @param WP_Comment $comment The trashed comment. */ do_action( 'trashed_comment', $comment->comment_ID, $comment ); // For top level 'note' type comments, also trash children. if ( 'note' === $comment->comment_type && 0 === (int) $comment->comment_parent ) { $children = $comment->get_children( array( 'fields' => 'ids', 'status' => 'all', 'type' => 'note', ) ); $success = true; foreach ( $children as $child_id ) { if ( ! wp_trash_comment( $child_id ) ) { $success = false; } } return $success; } return true; } return false; } /** * Removes a comment from the Trash * * @since 2.9.0 * * @param int|WP_Comment $comment_id Comment ID or WP_Comment object. * @return bool True on success, false on failure. */ function wp_untrash_comment( $comment_id ) { $comment = get_comment( $comment_id ); if ( ! $comment ) { return false; } /** * Fires immediately before a comment is restored from the Trash. * * @since 2.9.0 * @since 4.9.0 Added the `$comment` parameter. * * @param string $comment_id The comment ID as a numeric string. * @param WP_Comment $comment The comment to be untrashed. */ do_action( 'untrash_comment', $comment->comment_ID, $comment ); $status = (string) get_comment_meta( $comment->comment_ID, '_wp_trash_meta_status', true ); if ( empty( $status ) ) { $status = '0'; } if ( wp_set_comment_status( $comment, $status ) ) { delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_time' ); delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_status' ); /** * Fires immediately after a comment is restored from the Trash. * * @since 2.9.0 * @since 4.9.0 Added the `$comment` parameter. * * @param string $comment_id The comment ID as a numeric string. * @param WP_Comment $comment The untrashed comment. */ do_action( 'untrashed_comment', $comment->comment_ID, $comment ); return true; } return false; } /** * Marks a comment as Spam. * * @since 2.9.0 * * @param int|WP_Comment $comment_id Comment ID or WP_Comment object. * @return bool True on success, false on failure. */ function wp_spam_comment( $comment_id ) { $comment = get_comment( $comment_id ); if ( ! $comment ) { return false; } /** * Fires immediately before a comment is marked as Spam. * * @since 2.9.0 * @since 4.9.0 Added the `$comment` parameter. * * @param int $comment_id The comment ID. * @param WP_Comment $comment The comment to be marked as spam. */ do_action( 'spam_comment', $comment->comment_ID, $comment ); if ( wp_set_comment_status( $comment, 'spam' ) ) { delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_status' ); delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_time' ); add_comment_meta( $comment->comment_ID, '_wp_trash_meta_status', $comment->comment_approved ); add_comment_meta( $comment->comment_ID, '_wp_trash_meta_time', time() ); /** * Fires immediately after a comment is marked as Spam. * * @since 2.9.0 * @since 4.9.0 Added the `$comment` parameter. * * @param int $comment_id The comment ID. * @param WP_Comment $comment The comment marked as spam. */ do_action( 'spammed_comment', $comment->comment_ID, $comment ); return true; } return false; } /** * Removes a comment from the Spam. * * @since 2.9.0 * * @param int|WP_Comment $comment_id Comment ID or WP_Comment object. * @return bool True on success, false on failure. */ function wp_unspam_comment( $comment_id ) { $comment = get_comment( $comment_id ); if ( ! $comment ) { return false; } /** * Fires immediately before a comment is unmarked as Spam. * * @since 2.9.0 * @since 4.9.0 Added the `$comment` parameter. * * @param string $comment_id The comment ID as a numeric string. * @param WP_Comment $comment The comment to be unmarked as spam. */ do_action( 'unspam_comment', $comment->comment_ID, $comment ); $status = (string) get_comment_meta( $comment->comment_ID, '_wp_trash_meta_status', true ); if ( empty( $status ) ) { $status = '0'; } if ( wp_set_comment_status( $comment, $status ) ) { delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_status' ); delete_comment_meta( $comment->comment_ID, '_wp_trash_meta_time' ); /** * Fires immediately after a comment is unmarked as Spam. * * @since 2.9.0 * @since 4.9.0 Added the `$comment` parameter. * * @param string $comment_id The comment ID as a numeric string. * @param WP_Comment $comment The comment unmarked as spam. */ do_action( 'unspammed_comment', $comment->comment_ID, $comment ); return true; } return false; } /** * Retrieves the status of a comment by comment ID. * * @since 1.0.0 * * @param int|WP_Comment $comment_id Comment ID or WP_Comment object * @return string|false Status might be 'trash', '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 ( null === $approved ) { return false; } elseif ( '1' === $approved ) { return 'approved'; } elseif ( '0' === $approved ) { return 'unapproved'; } elseif ( 'spam' === $approved ) { return 'spam'; } elseif ( 'trash' === $approved ) { return 'trash'; } else { return false; } } /** * Calls hooks for when a comment status transition occurs. * * Calls hooks for comment status transitions. If the new comment status is not the same * as the previous comment status, then two hooks will be ran, the first is * {@see 'transition_comment_status'} with new status, old status, and comment data. * The next action called is {@see 'comment_$old_status_to_$new_status'}. It has * the comment data. * * The final action will run whether or not the comment statuses are the same. * The action is named {@see 'comment_$new_status_$comment->comment_type'}. * * @since 2.7.0 * * @param string $new_status New comment status. * @param string $old_status Previous comment status. * @param WP_Comment $comment Comment object. */ 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 ) { /** * Fires when the comment status is in transition. * * @since 2.7.0 * * @param string $new_status The new comment status. * @param string $old_status The old comment status. * @param WP_Comment $comment Comment object. */ do_action( 'transition_comment_status', $new_status, $old_status, $comment ); /** * Fires when the comment status is in transition from one specific status to another. * * The dynamic portions of the hook name, `$old_status`, and `$new_status`, * refer to the old and new comment statuses, respectively. * * Possible hook names include: * * - `comment_unapproved_to_approved` * - `comment_spam_to_approved` * - `comment_approved_to_unapproved` * - `comment_spam_to_unapproved` * - `comment_unapproved_to_spam` * - `comment_approved_to_spam` * * @since 2.7.0 * * @param WP_Comment $comment Comment object. */ do_action( "comment_{$old_status}_to_{$new_status}", $comment ); } /** * Fires when the status of a specific comment type is in transition. * * The dynamic portions of the hook name, `$new_status`, and `$comment->comment_type`, * refer to the new comment status, and the type of comment, respectively. * * Typical comment types include 'comment', 'pingback', or 'trackback'. * * Possible hook names include: * * - `comment_approved_comment` * - `comment_approved_pingback` * - `comment_approved_trackback` * - `comment_unapproved_comment` * - `comment_unapproved_pingback` * - `comment_unapproved_trackback` * - `comment_spam_comment` * - `comment_spam_pingback` * - `comment_spam_trackback` * * @since 2.7.0 * * @param string $comment_id The comment ID as a numeric string. * @param WP_Comment $comment Comment object. */ do_action( "comment_{$new_status}_{$comment->comment_type}", $comment->comment_ID, $comment ); } /** * Clears the lastcommentmodified cached value when a comment status is changed. * * Deletes the lastcommentmodified cache key when a comment enters or leaves * 'approved' status. * * @since 4.7.0 * @access private * * @param string $new_status The new comment status. * @param string $old_status The old comment status. */ function _clear_modified_cache_on_transition_comment_status( $new_status, $old_status ) { if ( 'approved' === $new_status || 'approved' === $old_status ) { $data = array(); foreach ( array( 'server', 'gmt', 'blog' ) as $timezone ) { $data[] = "lastcommentmodified:$timezone"; } wp_cache_delete_multiple( $data, 'timeinfo' ); } } /** * Gets 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 { * An array of current commenter variables. * * @type string $comment_author The name of the current commenter, or an empty string. * @type string $comment_author_email The email address of the current commenter, or an empty string. * @type string $comment_author_url The URL address of the current commenter, or an empty string. * } */ 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 ]; } /** * Filters the current commenter's name, email, and URL. * * @since 3.1.0 * * @param array $comment_author_data { * An array of current commenter variables. * * @type string $comment_author The name of the current commenter, or an empty string. * @type string $comment_author_email The email address of the current commenter, or an empty string. * @type string $comment_author_url The URL address of the current commenter, or an empty string. * } */ return apply_filters( 'wp_get_current_commenter', compact( 'comment_author', 'comment_author_email', 'comment_author_url' ) ); } /** * Gets unapproved comment author's email. * * Used to allow the commenter to see their pending comment. * * @since 5.1.0 * @since 5.7.0 The window within which the author email for an unapproved comment * can be retrieved was extended to 10 minutes. * * @return string The unapproved comment author's email (when supplied). */ function wp_get_unapproved_comment_author_email() { $commenter_email = ''; if ( ! empty( $_GET['unapproved'] ) && ! empty( $_GET['moderation-hash'] ) ) { $comment_id = (int) $_GET['unapproved']; $comment = get_comment( $comment_id ); if ( $comment && hash_equals( $_GET['moderation-hash'], wp_hash( $comment->comment_date_gmt ) ) ) { // The comment will only be viewable by the comment author for 10 minutes. $comment_preview_expires = strtotime( $comment->comment_date_gmt . '+10 minutes' ); if ( time() < $comment_preview_expires ) { $commenter_email = $comment->comment_author_email; } } } if ( ! $commenter_email ) { $commenter = wp_get_current_commenter(); $commenter_email = $commenter['comment_author_email']; } return $commenter_email; } /** * Inserts a comment into the database. * * @since 2.0.0 * @since 4.4.0 Introduced the `$comment_meta` argument. * @since 5.5.0 Default value for `$comment_type` argument changed to `comment`. * * @global wpdb $wpdb WordPress database abstraction object. * * @param array $commentdata { * Array of arguments for inserting a new comment. * * @type string $comment_agent The HTTP user agent of the `$comment_author` when * the comment was submitted. Default empty. * @type int|string $comment_approved Whether the comment has been approved. Default 1. * @type string $comment_author The name of the author of the comment. Default empty. * @type string $comment_author_email The email address of the `$comment_author`. Default empty. * @type string $comment_author_IP The IP address of the `$comment_author`. Default empty. * @type string $comment_author_url The URL address of the `$comment_author`. Default empty. * @type string $comment_content The content of the comment. Default empty. * @type string $comment_date The date the comment was submitted. To set the date * manually, `$comment_date_gmt` must also be specified. * Default is the current time. * @type string $comment_date_gmt The date the comment was submitted in the GMT timezone. * Default is `$comment_date` in the site's GMT timezone. * @type int $comment_karma The karma of the comment. Default 0. * @type int $comment_parent ID of this comment's parent, if any. Default 0. * @type int $comment_post_ID ID of the post that relates to the comment, if any. * Default 0. * @type string $comment_type Comment type. Default 'comment'. * @type array $comment_meta Optional. Array of key/value pairs to be stored in commentmeta for the * new comment. * @type int $user_id ID of the user who submitted the comment. Default 0. * } * @return int|false The new comment's ID on success, false on failure. */ function wp_insert_comment( $commentdata ) { global $wpdb; $data = wp_unslash( $commentdata ); $comment_author = ! isset( $data['comment_author'] ) ? '' : $data['comment_author']; $comment_author_email = ! isset( $data['comment_author_email'] ) ? '' : $data['comment_author_email']; $comment_author_url = ! isset( $data['comment_author_url'] ) ? '' : $data['comment_author_url']; $comment_author_ip = ! isset( $data['comment_author_IP'] ) ? '' : $data['comment_author_IP']; $comment_date = ! isset( $data['comment_date'] ) ? current_time( 'mysql' ) : $data['comment_date']; $comment_date_gmt = ! isset( $data['comment_date_gmt'] ) ? get_gmt_from_date( $comment_date ) : $data['comment_date_gmt']; $comment_post_id = ! isset( $data['comment_post_ID'] ) ? 0 : $data['comment_post_ID']; $comment_content = ! isset( $data['comment_content'] ) ? '' : $data['comment_content']; $comment_karma = ! isset( $data['comment_karma'] ) ? 0 : $data['comment_karma']; $comment_approved = ! isset( $data['comment_approved'] ) ? 1 : $data['comment_approved']; $comment_agent = ! isset( $data['comment_agent'] ) ? '' : $data['comment_agent']; $comment_type = empty( $data['comment_type'] ) ? 'comment' : $data['comment_type']; $comment_parent = ! isset( $data['comment_parent'] ) ? 0 : $data['comment_parent']; $user_id = ! isset( $data['user_id'] ) ? 0 : $data['user_id']; $compacted = array( 'comment_post_ID' => $comment_post_id, 'comment_author_IP' => $comment_author_ip, ); $compacted += compact( 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_date', 'comment_date_gmt', 'comment_content', 'comment_karma', 'comment_approved', 'comment_agent', 'comment_type', 'comment_parent', 'user_id' ); if ( ! $wpdb->insert( $wpdb->comments, $compacted ) ) { return false; } $id = (int) $wpdb->insert_id; if ( 1 === (int) $comment_approved ) { wp_update_comment_count( $comment_post_id ); $data = array(); foreach ( array( 'server', 'gmt', 'blog' ) as $timezone ) { $data[] = "lastcommentmodified:$timezone"; } wp_cache_delete_multiple( $data, 'timeinfo' ); } clean_comment_cache( $id ); $comment = get_comment( $id ); // If metadata is provided, store it. if ( isset( $commentdata['comment_meta'] ) && is_array( $commentdata['comment_meta'] ) ) { foreach ( $commentdata['comment_meta'] as $meta_key => $meta_value ) { add_comment_meta( $comment->comment_ID, $meta_key, $meta_value, true ); } } /** * Fires immediately after a comment is inserted into the database. * * @since 2.8.0 * * @param int $id The comment ID. * @param WP_Comment $comment Comment object. */ do_action( 'wp_insert_comment', $id, $comment ); 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 * * @param array $commentdata Contains information on the comment. * @return array Parsed comment information. */ function wp_filter_comment( $commentdata ) { if ( isset( $commentdata['user_ID'] ) ) { /** * Filters the comment author's user ID before it is set. * * The first time this filter is evaluated, `user_ID` is checked * (for back-compat), followed by the standard `user_id` value. * * @since 1.5.0 * * @param int $user_id The comment author's user ID. */ $commentdata['user_id'] = apply_filters( 'pre_user_id', $commentdata['user_ID'] ); } elseif ( isset( $commentdata['user_id'] ) ) { /** This filter is documented in wp-includes/comment.php */ $commentdata['user_id'] = apply_filters( 'pre_user_id', $commentdata['user_id'] ); } /** * Filters the comment author's browser user agent before it is set. * * @since 1.5.0 * * @param string $comment_agent The comment author's browser user agent. */ $commentdata['comment_agent'] = apply_filters( 'pre_comment_user_agent', ( isset( $commentdata['comment_agent'] ) ? $commentdata['comment_agent'] : '' ) ); /** This filter is documented in wp-includes/comment.php */ $commentdata['comment_author'] = apply_filters( 'pre_comment_author_name', $commentdata['comment_author'] ); /** * Filters the comment content before it is set. * * @since 1.5.0 * * @param string $comment_content The comment content. */ $commentdata['comment_content'] = apply_filters( 'pre_comment_content', $commentdata['comment_content'] ); /** * Filters the comment author's IP address before it is set. * * @since 1.5.0 * * @param string $comment_author_ip The comment author's IP address. */ $commentdata['comment_author_IP'] = apply_filters( 'pre_comment_user_ip', $commentdata['comment_author_IP'] ); /** This filter is documented in wp-includes/comment.php */ $commentdata['comment_author_url'] = apply_filters( 'pre_comment_author_url', $commentdata['comment_author_url'] ); /** This filter is documented in wp-includes/comment.php */ $commentdata['comment_author_email'] = apply_filters( 'pre_comment_author_email', $commentdata['comment_author_email'] ); $commentdata['filtered'] = true; return $commentdata; } /** * Determines whether a 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 - $time_lastcomment ) < 15 ) { return true; } return false; } /** * Adds a new comment to the database. * * Filters new comment to ensure that the fields are sanitized and valid before * inserting comment into database. Calls {@see 'comment_post'} action with comment ID * and whether comment is approved by WordPress. Also has {@see 'preprocess_comment'} * filter for processing the comment data before the function handles it. * * We use `REMOTE_ADDR` here directly. If you are behind a proxy, you should ensure * that it is properly set, such as in wp-config.php, for your environment. * * See {@link https://core.trac.wordpress.org/ticket/9235} * * @since 1.5.0 * @since 4.3.0 Introduced the `comment_agent` and `comment_author_IP` arguments. * @since 4.7.0 The `$avoid_die` parameter was added, allowing the function * to return a WP_Error object instead of dying. * @since 5.5.0 The `$avoid_die` parameter was renamed to `$wp_error`. * @since 5.5.0 Introduced the `comment_type` argument. * * @see wp_insert_comment() * @global wpdb $wpdb WordPress database abstraction object. * * @param array $commentdata { * Comment data. * * @type string $comment_author The name of the comment author. * @type string $comment_author_email The comment author email address. * @type string $comment_author_url The comment author URL. * @type string $comment_content The content of the comment. * @type string $comment_date The date the comment was submitted. Default is the current time. * @type string $comment_date_gmt The date the comment was submitted in the GMT timezone. * Default is `$comment_date` in the GMT timezone. * @type string $comment_type Comment type. Default 'comment'. * @type int $comment_parent The ID of this comment's parent, if any. Default 0. * @type int $comment_post_ID The ID of the post that relates to the comment. * @type int $user_id The ID of the user who submitted the comment. Default 0. * @type int $user_ID Kept for backward-compatibility. Use `$user_id` instead. * @type string $comment_agent Comment author user agent. Default is the value of 'HTTP_USER_AGENT' * in the `$_SERVER` superglobal sent in the original request. * @type string $comment_author_IP Comment author IP address in IPv4 format. Default is the value of * 'REMOTE_ADDR' in the `$_SERVER` superglobal sent in the original request. * } * @param bool $wp_error Should errors be returned as WP_Error objects instead of * executing wp_die()? Default false. * @return int|false|WP_Error The ID of the comment on success, false or WP_Error on failure. */ function wp_new_comment( $commentdata, $wp_error = false ) { global $wpdb; /* * Normalize `user_ID` to `user_id`, but pass the old key * to the `preprocess_comment` filter for backward compatibility. */ if ( isset( $commentdata['user_ID'] ) ) { $commentdata['user_ID'] = (int) $commentdata['user_ID']; $commentdata['user_id'] = $commentdata['user_ID']; } elseif ( isset( $commentdata['user_id'] ) ) { $commentdata['user_id'] = (int) $commentdata['user_id']; $commentdata['user_ID'] = $commentdata['user_id']; } $prefiltered_user_id = ( isset( $commentdata['user_id'] ) ) ? (int) $commentdata['user_id'] : 0; if ( ! isset( $commentdata['comment_author_IP'] ) ) { $commentdata['comment_author_IP'] = $_SERVER['REMOTE_ADDR']; } if ( ! isset( $commentdata['comment_agent'] ) ) { $commentdata['comment_agent'] = isset( $_SERVER['HTTP_USER_AGENT'] ) ? $_SERVER['HTTP_USER_AGENT'] : ''; } /** * Filters a comment's data before it is sanitized and inserted into the database. * * @since 1.5.0 * @since 5.6.0 Comment data includes the `comment_agent` and `comment_author_IP` values. * * @param array $commentdata Comment data. */ $commentdata = apply_filters( 'preprocess_comment', $commentdata ); $commentdata['comment_post_ID'] = (int) $commentdata['comment_post_ID']; // Normalize `user_ID` to `user_id` again, after the filter. if ( isset( $commentdata['user_ID'] ) && $prefiltered_user_id !== (int) $commentdata['user_ID'] ) { $commentdata['user_ID'] = (int) $commentdata['user_ID']; $commentdata['user_id'] = $commentdata['user_ID']; } elseif ( isset( $commentdata['user_id'] ) ) { $commentdata['user_id'] = (int) $commentdata['user_id']; $commentdata['user_ID'] = $commentdata['user_id']; } $commentdata['comment_parent'] = isset( $commentdata['comment_parent'] ) ? absint( $commentdata['comment_parent'] ) : 0; $parent_status = ( $commentdata['comment_parent'] > 0 ) ? 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:., ]/', '', $commentdata['comment_author_IP'] ); $commentdata['comment_agent'] = substr( $commentdata['comment_agent'], 0, 254 ); if ( empty( $commentdata['comment_date'] ) ) { $commentdata['comment_date'] = current_time( 'mysql' ); } if ( empty( $commentdata['comment_date_gmt'] ) ) { $commentdata['comment_date_gmt'] = current_time( 'mysql', true ); } if ( empty( $commentdata['comment_type'] ) ) { $commentdata['comment_type'] = 'comment'; } $commentdata['comment_approved'] = wp_allow_comment( $commentdata, $wp_error ); if ( is_wp_error( $commentdata['comment_approved'] ) ) { return $commentdata['comment_approved']; } $commentdata = wp_filter_comment( $commentdata ); if ( ! in_array( $commentdata['comment_approved'], array( 'trash', 'spam' ), true ) ) { // Validate the comment again after filters are applied to comment data. $commentdata['comment_approved'] = wp_check_comment_data( $commentdata ); } if ( is_wp_error( $commentdata['comment_approved'] ) ) { return $commentdata['comment_approved']; } $comment_id = wp_insert_comment( $commentdata ); if ( ! $comment_id ) { $fields = array( 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content' ); foreach ( $fields as $field ) { if ( isset( $commentdata[ $field ] ) ) { $commentdata[ $field ] = $wpdb->strip_invalid_text_for_column( $wpdb->comments, $field, $commentdata[ $field ] ); } } $commentdata = wp_filter_comment( $commentdata ); $commentdata['comment_approved'] = wp_allow_comment( $commentdata, $wp_error ); if ( is_wp_error( $commentdata['comment_approved'] ) ) { return $commentdata['comment_approved']; } $comment_id = wp_insert_comment( $commentdata ); if ( ! $comment_id ) { return false; } } /** * Fires immediately after a comment is inserted into the database. * * @since 1.2.0 * @since 4.5.0 The `$commentdata` parameter was added. * * @param int $comment_id The comment ID. * @param int|string $comment_approved 1 if the comment is approved, 0 if not, 'spam' if spam. * @param array $commentdata Comment data. */ do_action( 'comment_post', $comment_id, $commentdata['comment_approved'], $commentdata ); return $comment_id; } /** * Sends a comment moderation notification to the comment moderator. * * @since 4.4.0 * * @param int $comment_id ID of the comment. * @return bool True on success, false on failure. */ function wp_new_comment_notify_moderator( $comment_id ) { $comment = get_comment( $comment_id ); // Only send notifications for pending comments. $maybe_notify = ( '0' === $comment->comment_approved ); /** This filter is documented in wp-includes/pluggable.php */ $maybe_notify = apply_filters( 'notify_moderator', $maybe_notify, $comment_id ); if ( ! $maybe_notify ) { return false; } return wp_notify_moderator( $comment_id ); } /** * Sends a notification of a new comment to the post author. * * @since 4.4.0 * * Uses the {@see 'notify_post_author'} filter to determine whether the post author * should be notified when a new comment is added, overriding site setting. * * @param int $comment_id Comment ID. * @return bool True on success, false on failure. */ function wp_new_comment_notify_postauthor( $comment_id ) { $comment = get_comment( $comment_id ); $is_note = ( $comment && 'note' === $comment->comment_type ); $maybe_notify = $is_note ? get_option( 'wp_notes_notify', 1 ) : get_option( 'comments_notify' ); /** * Filters whether to send the post author new comment notification emails, * overriding the site setting. * * @since 4.4.0 * * @param bool $maybe_notify Whether to notify the post author about the new comment. * @param int $comment_id The ID of the comment for the notification. */ $maybe_notify = apply_filters( 'notify_post_author', $maybe_notify, $comment_id ); /* * wp_notify_postauthor() checks if notifying the author of their own comment. * By default, it won't, but filters can override this. */ if ( ! $maybe_notify ) { return false; } // Send notifications for approved comments and all notes. if ( ! isset( $comment->comment_approved ) || ( '1' !== $comment->comment_approved && ! $is_note ) ) { return false; } return wp_notify_postauthor( $comment_id ); } /** * Send a notification to the post author when a new note is added via the REST API. * * @since 6.9.0 * * @param WP_Comment $comment The comment object. */ function wp_new_comment_via_rest_notify_postauthor( $comment ) { if ( $comment instanceof WP_Comment && 'note' === $comment->comment_type ) { wp_new_comment_notify_postauthor( (int) $comment->comment_ID ); } } /** * Sets the status of a comment. * * The {@see 'wp_set_comment_status'} action is called after the comment is handled. * If the comment status is not in the list, then false is returned. * * @since 1.0.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int|WP_Comment $comment_id Comment ID or WP_Comment object. * @param string $comment_status New comment status, either 'hold', 'approve', 'spam', or 'trash'. * @param bool $wp_error Whether to return a WP_Error object if there is a failure. Default false. * @return bool|WP_Error True on success, false or WP_Error on failure. */ function wp_set_comment_status( $comment_id, $comment_status, $wp_error = false ) { global $wpdb; switch ( $comment_status ) { case 'hold': case '0': $status = '0'; break; case 'approve': case '1': $status = '1'; add_action( 'wp_set_comment_status', 'wp_new_comment_notify_postauthor' ); break; case 'spam': $status = 'spam'; break; case 'trash': $status = 'trash'; break; default: return false; } $comment_old = clone get_comment( $comment_id ); if ( ! $wpdb->update( $wpdb->comments, array( 'comment_approved' => $status ), array( 'comment_ID' => $comment_old->comment_ID ) ) ) { if ( $wp_error ) { return new WP_Error( 'db_update_error', __( 'Could not update comment status.' ), $wpdb->last_error ); } else { return false; } } clean_comment_cache( $comment_old->comment_ID ); $comment = get_comment( $comment_old->comment_ID ); /** * Fires immediately after transitioning a comment's status from one to another in the database * and removing the comment from the object cache, but prior to all status transition hooks. * * @since 1.5.0 * * @param string $comment_id Comment ID as a numeric string. * @param string $comment_status Current comment status. Possible values include * 'hold', '0', 'approve', '1', 'spam', and 'trash'. */ do_action( 'wp_set_comment_status', $comment->comment_ID, $comment_status ); wp_transition_comment_status( $comment_status, $comment_old->comment_approved, $comment ); wp_update_comment_count( $comment->comment_post_ID ); return true; } /** * Updates an existing comment in the database. * * Filters the comment and makes sure certain fields are valid before updating. * * @since 2.0.0 * @since 4.9.0 Add updating comment meta during comment update. * @since 5.5.0 The `$wp_error` parameter was added. * @since 5.5.0 The return values for an invalid comment or post ID * were changed to false instead of 0. * * @global wpdb $wpdb WordPress database abstraction object. * * @param array $commentarr Contains information on the comment. * @param bool $wp_error Optional. Whether to return a WP_Error on failure. Default false. * @return int|false|WP_Error The value 1 if the comment was updated, 0 if not updated. * False or a WP_Error object on failure. */ function wp_update_comment( $commentarr, $wp_error = false ) { global $wpdb; // First, get all of the original fields. $comment = get_comment( $commentarr['comment_ID'], ARRAY_A ); if ( empty( $comment ) ) { if ( $wp_error ) { return new WP_Error( 'invalid_comment_id', __( 'Invalid comment ID.' ) ); } else { return false; } } // Make sure that the comment post ID is valid (if specified). if ( ! empty( $commentarr['comment_post_ID'] ) && ! get_post( $commentarr['comment_post_ID'] ) ) { if ( $wp_error ) { return new WP_Error( 'invalid_post_id', __( 'Invalid post ID.' ) ); } else { return false; } } $filter_comment = false; if ( ! has_filter( 'pre_comment_content', 'wp_filter_kses' ) ) { $filter_comment = ! user_can( isset( $comment['user_id'] ) ? $comment['user_id'] : 0, 'unfiltered_html' ); } if ( $filter_comment ) { add_filter( 'pre_comment_content', 'wp_filter_kses' ); } // Escape data pulled from DB. $comment = wp_slash( $comment ); $old_status = $comment['comment_approved']; // Merge old and new fields with new fields overwriting old ones. $commentarr = array_merge( $comment, $commentarr ); $commentarr = wp_filter_comment( $commentarr ); if ( $filter_comment ) { remove_filter( 'pre_comment_content', 'wp_filter_kses' ); } // Now extract the merged array. $data = wp_unslash( $commentarr ); /** * Filters the comment content before it is updated in the database. * * @since 1.5.0 * * @param string $comment_content The comment data. */ $data['comment_content'] = apply_filters( 'comment_save_pre', $data['comment_content'] ); $data['comment_date_gmt'] = get_gmt_from_date( $data['comment_date'] ); if ( ! isset( $data['comment_approved'] ) ) { $data['comment_approved'] = 1; } elseif ( 'hold' === $data['comment_approved'] ) { $data['comment_approved'] = 0; } elseif ( 'approve' === $data['comment_approved'] ) { $data['comment_approved'] = 1; } $comment_id = $data['comment_ID']; $comment_post_id = $data['comment_post_ID']; /** * Filters the comment data immediately before it is updated in the database. * * Note: data being passed to the filter is already unslashed. * * @since 4.7.0 * @since 5.5.0 Returning a WP_Error value from the filter will short-circuit comment update * and allow skipping further processing. * * @param array|WP_Error $data The new, processed comment data, or WP_Error. * @param array $comment The old, unslashed comment data. * @param array $commentarr The new, raw comment data. */ $data = apply_filters( 'wp_update_comment_data', $data, $comment, $commentarr ); // Do not carry on on failure. if ( is_wp_error( $data ) ) { if ( $wp_error ) { return $data; } else { return false; } } $keys = array( 'comment_post_ID', 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_author_IP', 'comment_date', 'comment_date_gmt', 'comment_content', 'comment_karma', 'comment_approved', 'comment_agent', 'comment_type', 'comment_parent', 'user_id', ); $data = wp_array_slice_assoc( $data, $keys ); $result = $wpdb->update( $wpdb->comments, $data, array( 'comment_ID' => $comment_id ) ); if ( false === $result ) { if ( $wp_error ) { return new WP_Error( 'db_update_error', __( 'Could not update comment in the database.' ), $wpdb->last_error ); } else { return false; } } // If metadata is provided, store it. if ( isset( $commentarr['comment_meta'] ) && is_array( $commentarr['comment_meta'] ) ) { foreach ( $commentarr['comment_meta'] as $meta_key => $meta_value ) { update_comment_meta( $comment_id, $meta_key, $meta_value ); } } clean_comment_cache( $comment_id ); wp_update_comment_count( $comment_post_id ); /** * Fires immediately after a comment is updated in the database. * * The hook also fires immediately before comment status transition hooks are fired. * * @since 1.2.0 * @since 4.6.0 Added the `$data` parameter. * * @param int $comment_id The comment ID. * @param array $data Comment data. */ do_action( 'edit_comment', $comment_id, $data ); $comment = get_comment( $comment_id ); wp_transition_comment_status( $comment->comment_approved, $old_status, $comment ); return $result; } /** * Determines 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 * * @param bool $defer * @return bool */ 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|null $post_id Post ID. * @param bool $do_deferred Optional. Whether to process previously deferred * post comment counts. Default false. * @return bool|void True on success, false on failure or if post with ID does * not exist. */ function wp_update_comment_count( $post_id, $do_deferred = false ) { static $_deferred = array(); if ( empty( $post_id ) && ! $do_deferred ) { return false; } 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 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $post_id Post ID * @return bool True on success, false if the post does not exist. */ function wp_update_comment_count_now( $post_id ) { global $wpdb; $post_id = (int) $post_id; if ( ! $post_id ) { return false; } wp_cache_delete( 'comments-0', 'counts' ); wp_cache_delete( "comments-{$post_id}", 'counts' ); $post = get_post( $post_id ); if ( ! $post ) { return false; } $old = (int) $post->comment_count; /** * Filters a post's comment count before it is updated in the database. * * @since 4.5.0 * * @param int|null $new The new comment count. Default null. * @param int $old The old comment count. * @param int $post_id Post ID. */ $new = apply_filters( 'pre_wp_update_comment_count_now', null, $old, $post_id ); if ( is_null( $new ) ) { $new = (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved = '1' AND comment_type != 'note'", $post_id ) ); } else { $new = (int) $new; } $wpdb->update( $wpdb->posts, array( 'comment_count' => $new ), array( 'ID' => $post_id ) ); clean_post_cache( $post ); /** * Fires immediately after a post's comment count is updated in the database. * * @since 2.3.0 * * @param int $post_id Post ID. * @param int $new The new comment count. * @param int $old The old comment count. */ do_action( 'wp_update_comment_count', $post_id, $new, $old ); /** This action is documented in wp-includes/post.php */ do_action( "edit_post_{$post->post_type}", $post_id, $post ); /** This action is documented in wp-includes/post.php */ 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 string $deprecated Not Used. * @return string|false String containing URI on success, false on failure. */ function discover_pingback_server_uri( $url, $deprecated = '' ) { if ( ! empty( $deprecated ) ) { _deprecated_argument( __FUNCTION__, '2.7.0' ); } $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 a URL. This should never happen. return false; } // Do not search for a pingback server on our own uploads. $uploads_dir = wp_get_upload_dir(); if ( str_starts_with( $url, $uploads_dir['baseurl'] ) ) { return false; } $response = wp_safe_remote_head( $url, array( 'timeout' => 2, 'httpversion' => '1.0', ) ); if ( is_wp_error( $response ) ) { return false; } if ( wp_remote_retrieve_header( $response, 'X-Pingback' ) ) { return wp_remote_retrieve_header( $response, 'X-Pingback' ); } // Not an (x)html, sgml, or xml page, no use going further. if ( preg_match( '#(image|audio|video|model)/#is', wp_remote_retrieve_header( $response, 'Content-Type' ) ) ) { return false; } // Now do a GET since we're going to look in the HTML headers (and we're sure it's not a binary file). $response = wp_safe_remote_get( $url, array( 'timeout' => 2, 'httpversion' => '1.0', ) ); if ( is_wp_error( $response ) ) { return false; } $contents = wp_remote_retrieve_body( $response ); $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; } /** * Performs all pingbacks, enclosures, trackbacks, and sends to pingback services. * * @since 2.1.0 * @since 5.6.0 Introduced `do_all_pings` action hook for individual services. */ function do_all_pings() { /** * Fires immediately after the `do_pings` event to hook services individually. * * @since 5.6.0 */ do_action( 'do_all_pings' ); } /** * Performs all pingbacks. * * @since 5.6.0 */ function do_all_pingbacks() { $pings = get_posts( array( 'post_type' => get_post_types(), 'suppress_filters' => false, 'nopaging' => true, 'meta_key' => '_pingme', 'fields' => 'ids', ) ); foreach ( $pings as $ping ) { delete_post_meta( $ping, '_pingme' ); pingback( null, $ping ); } } /** * Performs all enclosures. * * @since 5.6.0 */ function do_all_enclosures() { $enclosures = get_posts( array( 'post_type' => get_post_types(), 'suppress_filters' => false, 'nopaging' => true, 'meta_key' => '_encloseme', 'fields' => 'ids', ) ); foreach ( $enclosures as $enclosure ) { delete_post_meta( $enclosure, '_encloseme' ); do_enclose( null, $enclosure ); } } /** * Performs all trackbacks. * * @since 5.6.0 */ function do_all_trackbacks() { $trackbacks = get_posts( array( 'post_type' => get_post_types(), 'suppress_filters' => false, 'nopaging' => true, 'meta_key' => '_trackbackme', 'fields' => 'ids', ) ); foreach ( $trackbacks as $trackback ) { delete_post_meta( $trackback, '_trackbackme' ); do_trackbacks( $trackback ); } } /** * Performs trackbacks. * * @since 1.5.0 * @since 4.7.0 `$post` can be a WP_Post object. * * @global wpdb $wpdb WordPress database abstraction object. * * @param int|WP_Post $post Post ID or object to do trackbacks on. * @return void|false Returns false on failure. */ function do_trackbacks( $post ) { global $wpdb; $post = get_post( $post ); if ( ! $post ) { return false; } $to_ping = get_to_ping( $post ); $pinged = get_pung( $post ); if ( empty( $to_ping ) ) { $wpdb->update( $wpdb->posts, array( 'to_ping' => '' ), array( 'ID' => $post->ID ) ); return; } if ( empty( $post->post_excerpt ) ) { /** This filter is documented in wp-includes/post-template.php */ $excerpt = apply_filters( 'the_content', $post->post_content, $post->ID ); } else { /** This filter is documented in wp-includes/post-template.php */ $excerpt = apply_filters( 'the_excerpt', $post->post_excerpt ); } $excerpt = str_replace( ']]>', ']]>', $excerpt ); $excerpt = wp_html_excerpt( $excerpt, 252, '…' ); /** This filter is documented in wp-includes/post-template.php */ $post_title = apply_filters( 'the_title', $post->post_title, $post->ID ); $post_title = strip_tags( $post_title ); foreach ( (array) $to_ping as $tb_ping ) { $tb_ping = trim( $tb_ping ); if ( ! in_array( $tb_ping, $pinged, true ) ) { 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, %s, '')) WHERE ID = %d", $tb_ping, $post->ID ) ); } } } /** * Sends pings to all of the ping site services. * * @since 1.2.0 * * @param int $post_id Post ID. * @return int Same post ID as provided. */ 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 $post_id; } /** * Pings back the links found in a post. * * @since 0.71 * @since 4.7.0 `$post` can be a WP_Post object. * @since 6.8.0 Returns an array of pingback statuses indexed by link. * * @param string $content Post content to check for links. If empty will retrieve from post. * @param int|WP_Post $post Post ID or object. * @return array<string, bool> An array of pingback statuses indexed by link. */ function pingback( $content, $post ) { require_once ABSPATH . WPINC . '/class-IXR.php'; require_once ABSPATH . WPINC . '/class-wp-http-ixr-client.php'; // Original code by Mort (http://mort.mine.nu:8080). $post_links = array(); $post = get_post( $post ); if ( ! $post ) { return array(); } $pung = get_pung( $post ); if ( empty( $content ) ) { $content = $post->post_content; } /* * Step 1. * Parsing the post, external links (if any) are stored in the $post_links array. */ $post_links_temp = wp_extract_urls( $content ); $ping_status = array(); /* * Step 2. * Walking through 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 ( (array) $post_links_temp as $link_test ) { // If we haven't pung it already and it isn't a link to itself. if ( ! in_array( $link_test, $pung, true ) && ( url_to_postid( $link_test ) !== $post->ID ) // Also, let's never ping local attachments. && ! is_local_attachment( $link_test ) ) { $test = parse_url( $link_test ); if ( $test ) { if ( isset( $test['query'] ) ) { $post_links[] = $link_test; } elseif ( isset( $test['path'] ) && ( '/' !== $test['path'] ) && ( '' !== $test['path'] ) ) { $post_links[] = $link_test; } } } } $post_links = array_unique( $post_links ); /** * Fires just before pinging back links found in a post. * * @since 2.0.0 * * @param string[] $post_links Array of link URLs to be checked (passed by reference). * @param string[] $pung Array of link URLs already pinged (passed by reference). * @param int $post_id The post ID. */ do_action_ref_array( 'pre_ping', array( &$post_links, &$pung, $post->ID ) ); foreach ( (array) $post_links as $pagelinkedto ) { $pingback_server_url = discover_pingback_server_uri( $pagelinkedto ); if ( $pingback_server_url ) { // Allow an additional 60 seconds for each pingback to complete. if ( function_exists( 'set_time_limit' ) ) { set_time_limit( 60 ); } // Now, the RPC call. $pagelinkedfrom = get_permalink( $post ); // Using a timeout of 3 seconds should be enough to cover slow servers. $client = new WP_HTTP_IXR_Client( $pingback_server_url ); $client->timeout = 3; /** * Filters the user agent sent when pinging-back a URL. * * @since 2.9.0 * * @param string $concat_useragent The user agent concatenated with ' -- WordPress/' * and the WordPress version. * @param string $useragent The useragent. * @param string $pingback_server_url The server URL being linked to. * @param string $pagelinkedto URL of page linked to. * @param string $pagelinkedfrom URL of page linked from. */ $client->useragent = apply_filters( 'pingback_useragent', $client->useragent . ' -- WordPress/' . get_bloginfo( 'version' ), $client->useragent, $pingback_server_url, $pagelinkedto, $pagelinkedfrom ); // When set to true, this outputs debug messages by itself. $client->debug = false; $status = $client->query( 'pingback.ping', $pagelinkedfrom, $pagelinkedto ); if ( $status // Ping registered. || ( isset( $client->error->code ) && 48 === $client->error->code ) // Already registered. ) { add_ping( $post, $pagelinkedto ); } $ping_status[ $pagelinkedto ] = $status; } } return $ping_status; } /** * Checks 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 ''; } } /** * Sends a Trackback. * * Updates database when sending trackback to prevent duplicates. * * @since 0.71 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $trackback_url URL to send trackbacks. * @param string $title Title of post. * @param string $excerpt Excerpt of post. * @param int $post_id Post ID. * @return int|false|void Database query from update. */ function trackback( $trackback_url, $title, $excerpt, $post_id ) { global $wpdb; if ( empty( $trackback_url ) ) { return; } $options = array(); $options['timeout'] = 10; $options['body'] = array( 'title' => $title, 'url' => get_permalink( $post_id ), 'blog_name' => get_option( 'blogname' ), 'excerpt' => $excerpt, ); $response = wp_safe_remote_post( $trackback_url, $options ); if ( is_wp_error( $response ) ) { return; } $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET pinged = CONCAT(pinged, '\n', %s) WHERE ID = %d", $trackback_url, $post_id ) ); return $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, %s, '')) WHERE ID = %d", $trackback_url, $post_id ) ); } /** * Sends a pingback. * * @since 1.2.0 * * @param string $server Host of blog to connect to. * @param string $path Path to send the ping. */ function weblog_ping( $server = '', $path = '' ) { require_once ABSPATH . WPINC . '/class-IXR.php'; require_once ABSPATH . WPINC . '/class-wp-http-ixr-client.php'; // Using a timeout of 3 seconds should be enough to cover slow servers. $client = new WP_HTTP_IXR_Client( $server, ( ( ! strlen( trim( $path ) ) || ( '/' === $path ) ) ? false : $path ) ); $client->timeout = 3; $client->useragent .= ' -- WordPress/' . get_bloginfo( 'version' ); // When set to true, this outputs debug messages by itself. $client->debug = false; $home = trailingslashit( home_url() ); 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 ); } } /** * Default filter attached to pingback_ping_source_uri to validate the pingback's Source URI. * * @since 3.5.1 * * @see wp_http_validate_url() * * @param string $source_uri * @return string */ function pingback_ping_source_uri( $source_uri ) { return (string) wp_http_validate_url( $source_uri ); } /** * Default filter attached to xmlrpc_pingback_error. * * Returns a generic pingback error code unless the error code is 48, * which reports that the pingback is already registered. * * @since 3.5.1 * * @link https://www.hixie.ch/specs/pingback/pingback#TOC3 * * @param IXR_Error $ixr_error * @return IXR_Error */ function xmlrpc_pingback_error( $ixr_error ) { if ( 48 === $ixr_error->code ) { return $ixr_error; } return new IXR_Error( 0, '' ); } // // Cache. // /** * Removes a comment from the object cache. * * @since 2.3.0 * * @param int|array $ids Comment ID or an array of comment IDs to remove from cache. */ function clean_comment_cache( $ids ) { $comment_ids = (array) $ids; wp_cache_delete_multiple( $comment_ids, 'comment' ); foreach ( $comment_ids as $id ) { /** * Fires immediately after a comment has been removed from the object cache. * * @since 4.5.0 * * @param int $id Comment ID. */ do_action( 'clean_comment_cache', $id ); } wp_cache_set_comments_last_changed(); } /** * Updates the comment cache of given comments. * * Will add the comments in $comments to the cache. If comment ID already exists * in the comment cache then it will not be updated. The comment is added to the * cache using the comment group with the key using the ID of the comments. * * @since 2.3.0 * @since 4.4.0 Introduced the `$update_meta_cache` parameter. * * @param WP_Comment[] $comments Array of comment objects * @param bool $update_meta_cache Whether to update commentmeta cache. Default true. */ function update_comment_cache( $comments, $update_meta_cache = true ) { $data = array(); foreach ( (array) $comments as $comment ) { $data[ $comment->comment_ID ] = $comment; } wp_cache_add_multiple( $data, 'comment' ); if ( $update_meta_cache ) { // Avoid `wp_list_pluck()` in case `$comments` is passed by reference. $comment_ids = array(); foreach ( $comments as $comment ) { $comment_ids[] = $comment->comment_ID; } update_meta_cache( 'comment', $comment_ids ); } } /** * Adds any comments from the given IDs to the cache that do not already exist in cache. * * @since 4.4.0 * @since 6.1.0 This function is no longer marked as "private". * @since 6.3.0 Use wp_lazyload_comment_meta() for lazy-loading of comment meta. * * @see update_comment_cache() * @global wpdb $wpdb WordPress database abstraction object. * * @param int[] $comment_ids Array of comment IDs. * @param bool $update_meta_cache Optional. Whether to update the meta cache. Default true. */ function _prime_comment_caches( $comment_ids, $update_meta_cache = true ) { global $wpdb; $non_cached_ids = _get_non_cached_ids( $comment_ids, 'comment' ); if ( ! empty( $non_cached_ids ) ) { $fresh_comments = $wpdb->get_results( sprintf( "SELECT $wpdb->comments.* FROM $wpdb->comments WHERE comment_ID IN (%s)", implode( ',', array_map( 'intval', $non_cached_ids ) ) ) ); update_comment_cache( $fresh_comments, false ); } if ( $update_meta_cache ) { wp_lazyload_comment_meta( $comment_ids ); } } // // Internal. // /** * Closes comments on old posts on the fly, without any extra DB queries. Hooked to the_posts. * * @since 2.7.0 * @access private * * @param WP_Post[] $posts Array of post objects. * @param WP_Query $query Query object. * @return WP_Post[] */ function _close_comments_for_old_posts( $posts, $query ) { if ( empty( $posts ) || ! $query->is_singular() || ! get_option( 'close_comments_for_old_posts' ) ) { return $posts; } /** * Filters the list of post types to automatically close comments for. * * @since 3.2.0 * * @param string[] $post_types An array of post type names. */ $post_types = apply_filters( 'close_comments_for_post_types', array( 'post' ) ); if ( ! in_array( $posts[0]->post_type, $post_types, true ) ) { 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 * DAY_IN_SECONDS ) ) { $posts[0]->comment_status = 'closed'; $posts[0]->ping_status = 'closed'; } return $posts; } /** * Closes comments on an old post. Hooked to comments_open and pings_open. * * @since 2.7.0 * @access private * * @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 ); /** This filter is documented in wp-includes/comment.php */ $post_types = apply_filters( 'close_comments_for_post_types', array( 'post' ) ); if ( ! in_array( $post->post_type, $post_types, true ) ) { return $open; } // Undated drafts should not show up as comments closed. if ( '0000-00-00 00:00:00' === $post->post_date_gmt ) { return $open; } if ( time() - strtotime( $post->post_date_gmt ) > ( $days_old * DAY_IN_SECONDS ) ) { return false; } return $open; } /** * Handles the submission of a comment, usually posted to wp-comments-post.php via a comment form. * * This function expects unslashed data, as opposed to functions such as `wp_new_comment()` which * expect slashed data. * * @since 4.4.0 * * @param array $comment_data { * Comment data. * * @type string|int $comment_post_ID The ID of the post that relates to the comment. * @type string $author The name of the comment author. * @type string $email The comment author email address. * @type string $url The comment author URL. * @type string $comment The content of the comment. * @type string|int $comment_parent The ID of this comment's parent, if any. Default 0. * @type string $_wp_unfiltered_html_comment The nonce value for allowing unfiltered HTML. * } * @return WP_Comment|WP_Error A WP_Comment object on success, a WP_Error object on failure. */ function wp_handle_comment_submission( $comment_data ) { $comment_post_id = 0; $comment_author = ''; $comment_author_email = ''; $comment_author_url = ''; $comment_content = ''; $comment_parent = 0; $user_id = 0; if ( isset( $comment_data['comment_post_ID'] ) ) { $comment_post_id = (int) $comment_data['comment_post_ID']; } if ( isset( $comment_data['author'] ) && is_string( $comment_data['author'] ) ) { $comment_author = trim( strip_tags( $comment_data['author'] ) ); } if ( isset( $comment_data['email'] ) && is_string( $comment_data['email'] ) ) { $comment_author_email = trim( $comment_data['email'] ); } if ( isset( $comment_data['url'] ) && is_string( $comment_data['url'] ) ) { $comment_author_url = trim( $comment_data['url'] ); } if ( isset( $comment_data['comment'] ) && is_string( $comment_data['comment'] ) ) { $comment_content = trim( $comment_data['comment'] ); } if ( isset( $comment_data['comment_parent'] ) ) { $comment_parent = absint( $comment_data['comment_parent'] ); $comment_parent_object = get_comment( $comment_parent ); if ( 0 !== $comment_parent && ( ! $comment_parent_object instanceof WP_Comment || 0 === (int) $comment_parent_object->comment_approved ) ) { /** * Fires when a comment reply is attempted to an unapproved comment. * * @since 6.2.0 * * @param int $comment_post_id Post ID. * @param int $comment_parent Parent comment ID. */ do_action( 'comment_reply_to_unapproved_comment', $comment_post_id, $comment_parent ); return new WP_Error( 'comment_reply_to_unapproved_comment', __( 'Sorry, replies to unapproved comments are not allowed.' ), 403 ); } } $post = get_post( $comment_post_id ); if ( empty( $post->comment_status ) ) { /** * Fires when a comment is attempted on a post that does not exist. * * @since 1.5.0 * * @param int $comment_post_id Post ID. */ do_action( 'comment_id_not_found', $comment_post_id ); return new WP_Error( 'comment_id_not_found' ); } // get_post_status() will get the parent status for attachments. $status = get_post_status( $post ); if ( ( 'private' === $status ) && ! current_user_can( 'read_post', $comment_post_id ) ) { return new WP_Error( 'comment_id_not_found' ); } $status_obj = get_post_status_object( $status ); if ( ! comments_open( $comment_post_id ) ) { /** * Fires when a comment is attempted on a post that has comments closed. * * @since 1.5.0 * * @param int $comment_post_id Post ID. */ do_action( 'comment_closed', $comment_post_id ); return new WP_Error( 'comment_closed', __( 'Sorry, comments are closed for this item.' ), 403 ); } elseif ( 'trash' === $status ) { /** * Fires when a comment is attempted on a trashed post. * * @since 2.9.0 * * @param int $comment_post_id Post ID. */ do_action( 'comment_on_trash', $comment_post_id ); return new WP_Error( 'comment_on_trash' ); } elseif ( ! $status_obj->public && ! $status_obj->private ) { /** * Fires when a comment is attempted on a post in draft mode. * * @since 1.5.1 * * @param int $comment_post_id Post ID. */ do_action( 'comment_on_draft', $comment_post_id ); if ( current_user_can( 'read_post', $comment_post_id ) ) { return new WP_Error( 'comment_on_draft', __( 'Sorry, comments are not allowed for this item.' ), 403 ); } else { return new WP_Error( 'comment_on_draft' ); } } elseif ( post_password_required( $comment_post_id ) ) { /** * Fires when a comment is attempted on a password-protected post. * * @since 2.9.0 * * @param int $comment_post_id Post ID. */ do_action( 'comment_on_password_protected', $comment_post_id ); return new WP_Error( 'comment_on_password_protected' ); } else { /** * Fires before a comment is posted. * * @since 2.8.0 * * @param int $comment_post_id Post ID. */ do_action( 'pre_comment_on_post', $comment_post_id ); } // If the user is logged in. $user = wp_get_current_user(); if ( $user->exists() ) { if ( empty( $user->display_name ) ) { $user->display_name = $user->user_login; } $comment_author = $user->display_name; $comment_author_email = $user->user_email; $comment_author_url = $user->user_url; $user_id = $user->ID; if ( current_user_can( 'unfiltered_html' ) ) { if ( ! isset( $comment_data['_wp_unfiltered_html_comment'] ) || ! wp_verify_nonce( $comment_data['_wp_unfiltered_html_comment'], 'unfiltered-html-comment_' . $comment_post_id ) ) { kses_remove_filters(); // Start with a clean slate. kses_init_filters(); // Set up the filters. remove_filter( 'pre_comment_content', 'wp_filter_post_kses' ); add_filter( 'pre_comment_content', 'wp_filter_kses' ); } } } else { if ( get_option( 'comment_registration' ) ) { return new WP_Error( 'not_logged_in', __( 'Sorry, you must be logged in to comment.' ), 403 ); } } $comment_type = 'comment'; if ( get_option( 'require_name_email' ) && ! $user->exists() ) { if ( '' === $comment_author_email || '' === $comment_author ) { return new WP_Error( 'require_name_email', __( '<strong>Error:</strong> Please fill the required fields.' ), 200 ); } elseif ( ! is_email( $comment_author_email ) ) { return new WP_Error( 'require_valid_email', __( '<strong>Error:</strong> Please enter a valid email address.' ), 200 ); } } $commentdata = array( 'comment_post_ID' => $comment_post_id, ); $commentdata += compact( 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content', 'comment_type', 'comment_parent', 'user_id' ); /** * Filters whether an empty comment should be allowed. * * @since 5.1.0 * * @param bool $allow_empty_comment Whether to allow empty comments. Default false. * @param array $commentdata Array of comment data to be sent to wp_insert_comment(). */ $allow_empty_comment = apply_filters( 'allow_empty_comment', false, $commentdata ); if ( '' === $comment_content && ! $allow_empty_comment ) { return new WP_Error( 'require_valid_comment', __( '<strong>Error:</strong> Please type your comment text.' ), 200 ); } $check_max_lengths = wp_check_comment_data_max_lengths( $commentdata ); if ( is_wp_error( $check_max_lengths ) ) { return $check_max_lengths; } $comment_id = wp_new_comment( wp_slash( $commentdata ), true ); if ( is_wp_error( $comment_id ) ) { return $comment_id; } if ( ! $comment_id ) { return new WP_Error( 'comment_save_error', __( '<strong>Error:</strong> The comment could not be saved. Please try again later.' ), 500 ); } return get_comment( $comment_id ); } /** * Registers the personal data exporter for comments. * * @since 4.9.6 * * @param array[] $exporters An array of personal data exporters. * @return array[] An array of personal data exporters. */ function wp_register_comment_personal_data_exporter( $exporters ) { $exporters['wordpress-comments'] = array( 'exporter_friendly_name' => __( 'WordPress Comments' ), 'callback' => 'wp_comments_personal_data_exporter', ); return $exporters; } /** * Finds and exports personal data associated with an email address from the comments table. * * @since 4.9.6 * * @param string $email_address The comment author email address. * @param int $page Comment page number. * @return array { * An array of personal data. * * @type array[] $data An array of personal data arrays. * @type bool $done Whether the exporter is finished. * } */ function wp_comments_personal_data_exporter( $email_address, $page = 1 ) { // Limit us to 500 comments at a time to avoid timing out. $number = 500; $page = (int) $page; $data_to_export = array(); $comments = get_comments( array( 'author_email' => $email_address, 'number' => $number, 'paged' => $page, 'orderby' => 'comment_ID', 'order' => 'ASC', 'update_comment_meta_cache' => false, ) ); $comment_prop_to_export = array( 'comment_author' => __( 'Comment Author' ), 'comment_author_email' => __( 'Comment Author Email' ), 'comment_author_url' => __( 'Comment Author URL' ), 'comment_author_IP' => __( 'Comment Author IP' ), 'comment_agent' => __( 'Comment Author User Agent' ), 'comment_date' => __( 'Comment Date' ), 'comment_content' => __( 'Comment Content' ), 'comment_link' => __( 'Comment URL' ), ); foreach ( (array) $comments as $comment ) { $comment_data_to_export = array(); foreach ( $comment_prop_to_export as $key => $name ) { $value = ''; switch ( $key ) { case 'comment_author': case 'comment_author_email': case 'comment_author_url': case 'comment_author_IP': case 'comment_agent': case 'comment_date': $value = $comment->{$key}; break; case 'comment_content': $value = get_comment_text( $comment->comment_ID ); break; case 'comment_link': $value = get_comment_link( $comment->comment_ID ); $value = sprintf( '<a href="%s" target="_blank">%s</a>', esc_url( $value ), esc_html( $value ) ); break; } if ( ! empty( $value ) ) { $comment_data_to_export[] = array( 'name' => $name, 'value' => $value, ); } } $data_to_export[] = array( 'group_id' => 'comments', 'group_label' => __( 'Comments' ), 'group_description' => __( 'User’s comment data.' ), 'item_id' => "comment-{$comment->comment_ID}", 'data' => $comment_data_to_export, ); } $done = count( $comments ) < $number; return array( 'data' => $data_to_export, 'done' => $done, ); } /** * Registers the personal data eraser for comments. * * @since 4.9.6 * * @param array $erasers An array of personal data erasers. * @return array An array of personal data erasers. */ function wp_register_comment_personal_data_eraser( $erasers ) { $erasers['wordpress-comments'] = array( 'eraser_friendly_name' => __( 'WordPress Comments' ), 'callback' => 'wp_comments_personal_data_eraser', ); return $erasers; } /** * Erases personal data associated with an email address from the comments table. * * @since 4.9.6 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $email_address The comment author email address. * @param int $page Comment page number. * @return array { * Data removal results. * * @type bool $items_removed Whether items were actually removed. * @type bool $items_retained Whether items were retained. * @type string[] $messages An array of messages to add to the personal data export file. * @type bool $done Whether the eraser is finished. * } */ function wp_comments_personal_data_eraser( $email_address, $page = 1 ) { global $wpdb; if ( empty( $email_address ) ) { return array( 'items_removed' => false, 'items_retained' => false, 'messages' => array(), 'done' => true, ); } // Limit us to 500 comments at a time to avoid timing out. $number = 500; $page = (int) $page; $items_removed = false; $items_retained = false; $comments = get_comments( array( 'author_email' => $email_address, 'number' => $number, 'paged' => $page, 'orderby' => 'comment_ID', 'order' => 'ASC', 'include_unapproved' => true, ) ); /* translators: Name of a comment's author after being anonymized. */ $anon_author = __( 'Anonymous' ); $messages = array(); foreach ( (array) $comments as $comment ) { $anonymized_comment = array(); $anonymized_comment['comment_agent'] = ''; $anonymized_comment['comment_author'] = $anon_author; $anonymized_comment['comment_author_email'] = ''; $anonymized_comment['comment_author_IP'] = wp_privacy_anonymize_data( 'ip', $comment->comment_author_IP ); $anonymized_comment['comment_author_url'] = ''; $anonymized_comment['user_id'] = 0; $comment_id = (int) $comment->comment_ID; /** * Filters whether to anonymize the comment. * * @since 4.9.6 * * @param bool|string $anon_message Whether to apply the comment anonymization (bool) or a custom * message (string). Default true. * @param WP_Comment $comment WP_Comment object. * @param array $anonymized_comment Anonymized comment data. */ $anon_message = apply_filters( 'wp_anonymize_comment', true, $comment, $anonymized_comment ); if ( true !== $anon_message ) { if ( $anon_message && is_string( $anon_message ) ) { $messages[] = esc_html( $anon_message ); } else { /* translators: %d: Comment ID. */ $messages[] = sprintf( __( 'Comment %d contains personal data but could not be anonymized.' ), $comment_id ); } $items_retained = true; continue; } $args = array( 'comment_ID' => $comment_id, ); $updated = $wpdb->update( $wpdb->comments, $anonymized_comment, $args ); if ( $updated ) { $items_removed = true; clean_comment_cache( $comment_id ); } else { $items_retained = true; } } $done = count( $comments ) < $number; return array( 'items_removed' => $items_removed, 'items_retained' => $items_retained, 'messages' => $messages, 'done' => $done, ); } /** * Sets the last changed time for the 'comment' cache group. * * @since 5.0.0 */ function wp_cache_set_comments_last_changed() { wp_cache_set_last_changed( 'comment' ); } /** * Updates the comment type for a batch of comments. * * @since 5.5.0 * * @global wpdb $wpdb WordPress database abstraction object. */ function _wp_batch_update_comment_type() { global $wpdb; $lock_name = 'update_comment_type.lock'; // Try to lock. $lock_result = $wpdb->query( $wpdb->prepare( "INSERT IGNORE INTO `$wpdb->options` ( `option_name`, `option_value`, `autoload` ) VALUES (%s, %s, 'no') /* LOCK */", $lock_name, time() ) ); if ( ! $lock_result ) { $lock_result = get_option( $lock_name ); // Bail if we were unable to create a lock, or if the existing lock is still valid. if ( ! $lock_result || ( $lock_result > ( time() - HOUR_IN_SECONDS ) ) ) { wp_schedule_single_event( time() + ( 5 * MINUTE_IN_SECONDS ), 'wp_update_comment_type_batch' ); return; } } // Update the lock, as by this point we've definitely got a lock, just need to fire the actions. update_option( $lock_name, time() ); // Check if there's still an empty comment type. $empty_comment_type = $wpdb->get_var( "SELECT comment_ID FROM $wpdb->comments WHERE comment_type = '' LIMIT 1" ); // No empty comment type, we're done here. if ( ! $empty_comment_type ) { update_option( 'finished_updating_comment_type', true ); delete_option( $lock_name ); return; } // Empty comment type found? We'll need to run this script again. wp_schedule_single_event( time() + ( 2 * MINUTE_IN_SECONDS ), 'wp_update_comment_type_batch' ); /** * Filters the comment batch size for updating the comment type. * * @since 5.5.0 * * @param int $comment_batch_size The comment batch size. Default 100. */ $comment_batch_size = (int) apply_filters( 'wp_update_comment_type_batch_size', 100 ); // Get the IDs of the comments to update. $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM {$wpdb->comments} WHERE comment_type = '' ORDER BY comment_ID DESC LIMIT %d", $comment_batch_size ) ); if ( $comment_ids ) { $comment_id_list = implode( ',', $comment_ids ); // Update the `comment_type` field value to be `comment` for the next batch of comments. $wpdb->query( "UPDATE {$wpdb->comments} SET comment_type = 'comment' WHERE comment_type = '' AND comment_ID IN ({$comment_id_list})" // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared ); // Make sure to clean the comment cache. clean_comment_cache( $comment_ids ); } delete_option( $lock_name ); } /** * In order to avoid the _wp_batch_update_comment_type() job being accidentally removed, * check that it's still scheduled while we haven't finished updating comment types. * * @ignore * @since 5.5.0 */ function _wp_check_for_scheduled_update_comment_type() { if ( ! get_option( 'finished_updating_comment_type' ) && ! wp_next_scheduled( 'wp_update_comment_type_batch' ) ) { wp_schedule_single_event( time() + MINUTE_IN_SECONDS, 'wp_update_comment_type_batch' ); } } /** * Register initial note status meta. * * @since 6.9.0 */ function wp_create_initial_comment_meta() { register_meta( 'comment', '_wp_note_status', array( 'type' => 'string', 'description' => __( 'Note resolution status' ), 'single' => true, 'show_in_rest' => array( 'schema' => array( 'type' => 'string', 'enum' => array( 'resolved', 'reopen' ), ), ), 'auth_callback' => function ( $allowed, $meta_key, $object_id ) { return current_user_can( 'edit_comment', $object_id ); }, ) ); }
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