self::$initiated = true;
add_action( 'wp_insert_comment', array( 'Akismet', 'auto_check_update_meta' ), 10, 2 );
- add_action( 'preprocess_comment', array( 'Akismet', 'auto_check_comment' ), 1 );
+ add_filter( 'preprocess_comment', array( 'Akismet', 'auto_check_comment' ), 1 );
add_action( 'akismet_scheduled_delete', array( 'Akismet', 'delete_old_comments' ) );
add_action( 'akismet_scheduled_delete', array( 'Akismet', 'delete_old_comments_meta' ) );
add_action( 'akismet_schedule_cron_recheck', array( 'Akismet', 'cron_recheck' ) );
add_action( 'transition_comment_status', array( 'Akismet', 'transition_comment_status' ), 10, 3 );
+ // Run this early in the pingback call, before doing a remote fetch of the source uri
+ add_action( 'xmlrpc_call', array( 'Akismet', 'pre_check_pingback' ) );
+
if ( '3.0.5' == $GLOBALS['wp_version'] ) {
remove_filter( 'comment_text', 'wp_kses_data' );
if ( is_admin() )
if ( function_exists('wp_next_scheduled') && function_exists('wp_schedule_single_event') ) {
if ( !wp_next_scheduled( 'akismet_schedule_cron_recheck' ) ) {
wp_schedule_single_event( time() + 1200, 'akismet_schedule_cron_recheck' );
+ do_action( 'akismet_scheduled_recheck', 'invalid-response-' . $response[1] );
}
}
self::set_last_comment( $commentdata );
self::fix_scheduled_recheck();
- return self::$last_comment;
+ return $commentdata;
}
public static function get_last_comment() {
public static function delete_old_comments() {
global $wpdb;
- while( $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_id FROM {$wpdb->comments} WHERE DATE_SUB(NOW(), INTERVAL 15 DAY) > comment_date_gmt AND comment_approved = 'spam' LIMIT %d", defined( 'AKISMET_DELETE_LIMIT' ) ? AKISMET_DELETE_LIMIT : 10000 ) ) ) {
+ /**
+ * Determines how many comments will be deleted in each batch.
+ *
+ * @param int The default, as defined by AKISMET_DELETE_LIMIT.
+ */
+ $delete_limit = apply_filters( 'akismet_delete_comment_limit', defined( 'AKISMET_DELETE_LIMIT' ) ? AKISMET_DELETE_LIMIT : 10000 );
+ $delete_limit = max( 1, intval( $delete_limit ) );
+
+ /**
+ * Determines how many days a comment will be left in the Spam queue before being deleted.
+ *
+ * @param int The default number of days.
+ */
+ $delete_interval = apply_filters( 'akismet_delete_comment_interval', 15 );
+ $delete_interval = max( 1, intval( $delete_interval ) );
+
+ while ( $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_id FROM {$wpdb->comments} WHERE DATE_SUB(NOW(), INTERVAL %d DAY) > comment_date_gmt AND comment_approved = 'spam' LIMIT %d", $delete_interval, $delete_limit ) ) ) {
if ( empty( $comment_ids ) )
return;
$wpdb->queries = array();
- do_action( 'delete_comment', $comment_ids );
+ foreach ( $comment_ids as $comment_id ) {
+ do_action( 'delete_comment', $comment_id );
+ }
$comma_comment_ids = implode( ', ', array_map('intval', $comment_ids) );
if ( get_option( 'akismet_alert_code' ) || $status == 'invalid' ) {
// since there is currently a problem with the key, reschedule a check for 6 hours hence
wp_schedule_single_event( time() + 21600, 'akismet_schedule_cron_recheck' );
+ do_action( 'akismet_scheduled_recheck', 'key-problem-' . get_option( 'akismet_alert_code' ) . '-' . $status );
return false;
}
delete_comment_meta( $comment_id, 'akismet_rechecking' );
wp_schedule_single_event( time() + 1200, 'akismet_schedule_cron_recheck' );
+ do_action( 'akismet_scheduled_recheck', 'check-db-comment-' . $status );
return;
}
delete_comment_meta( $comment_id, 'akismet_rechecking' );
$remaining = $wpdb->get_var( "SELECT COUNT(*) FROM {$wpdb->commentmeta} WHERE meta_key = 'akismet_error'" );
if ( $remaining && !wp_next_scheduled('akismet_schedule_cron_recheck') ) {
wp_schedule_single_event( time() + 1200, 'akismet_schedule_cron_recheck' );
+ do_action( 'akismet_scheduled_recheck', 'remaining' );
}
}
if ( $future_check > $check_range ) {
wp_clear_scheduled_hook( 'akismet_schedule_cron_recheck' );
wp_schedule_single_event( time() + 300, 'akismet_schedule_cron_recheck' );
+ do_action( 'akismet_scheduled_recheck', 'fix-scheduled-recheck' );
}
}
'timeout' => 15
);
- $akismet_url = "http://{$http_host}/1.1/{$path}";
+ $akismet_url = $http_akismet_url = "http://{$http_host}/1.1/{$path}";
+
+ /**
+ * Try SSL first; if that fails, try without it and don't try it again for a while.
+ */
+
+ $ssl = $ssl_failed = false;
+
+ // Check if SSL requests were disabled fewer than X hours ago.
+ $ssl_disabled = get_option( 'akismet_ssl_disabled' );
+
+ if ( $ssl_disabled && $ssl_disabled < ( time() - 60 * 60 * 24 ) ) { // 24 hours
+ $ssl_disabled = false;
+ delete_option( 'akismet_ssl_disabled' );
+ }
+ else if ( $ssl_disabled ) {
+ do_action( 'akismet_ssl_disabled' );
+ }
+
+ if ( ! $ssl_disabled && function_exists( 'wp_http_supports') && ( $ssl = wp_http_supports( array( 'ssl' ) ) ) ) {
+ $akismet_url = set_url_scheme( $akismet_url, 'https' );
+
+ do_action( 'akismet_https_request_pre' );
+ }
+
$response = wp_remote_post( $akismet_url, $http_args );
+
Akismet::log( compact( 'akismet_url', 'http_args', 'response' ) );
- if ( is_wp_error( $response ) )
+
+ if ( $ssl && is_wp_error( $response ) ) {
+ do_action( 'akismet_https_request_failure', $response );
+
+ // Intermittent connection problems may cause the first HTTPS
+ // request to fail and subsequent HTTP requests to succeed randomly.
+ // Retry the HTTPS request once before disabling SSL for a time.
+ $response = wp_remote_post( $akismet_url, $http_args );
+
+ Akismet::log( compact( 'akismet_url', 'http_args', 'response' ) );
+
+ if ( is_wp_error( $response ) ) {
+ $ssl_failed = true;
+
+ do_action( 'akismet_https_request_failure', $response );
+
+ do_action( 'akismet_http_request_pre' );
+
+ // Try the request again without SSL.
+ $response = wp_remote_post( $http_akismet_url, $http_args );
+
+ Akismet::log( compact( 'http_akismet_url', 'http_args', 'response' ) );
+ }
+ }
+
+ if ( is_wp_error( $response ) ) {
+ do_action( 'akismet_request_failure', $response );
+
return array( '', '' );
+ }
+
+ if ( $ssl_failed ) {
+ // The request failed when using SSL but succeeded without it. Disable SSL for future requests.
+ update_option( 'akismet_ssl_disabled', time() );
+
+ do_action( 'akismet_https_disabled' );
+ }
return array( $response['headers'], $response['body'] );
}
return _http_build_query( $args, '', '&' );
}
+ /**
+ * Log debugging info to the error log.
+ *
+ * Enabled when WP_DEBUG_LOG is enabled, but can be disabled via the akismet_debug_log filter.
+ *
+ * @param mixed $akismet_debug The data to log.
+ */
public static function log( $akismet_debug ) {
- if ( defined( 'WP_DEBUG_LOG' ) && WP_DEBUG_LOG )
- error_log( print_r( compact( 'akismet_debug' ), 1 ) ); //send message to debug.log when in debug mode
+ if ( apply_filters( 'akismet_debug_log', defined( 'WP_DEBUG_LOG' ) && WP_DEBUG_LOG ) ) {
+ error_log( print_r( compact( 'akismet_debug' ), true ) );
+ }
+ }
+
+ public static function pre_check_pingback( $method ) {
+ if ( $method !== 'pingback.ping' )
+ return;
+
+ global $wp_xmlrpc_server;
+
+ if ( !is_object( $wp_xmlrpc_server ) )
+ return false;
+
+ // Lame: tightly coupled with the IXR class.
+ $args = $wp_xmlrpc_server->message->params;
+
+ if ( !empty( $args[1] ) ) {
+ $post_id = url_to_postid( $args[1] );
+
+ // If this gets through the pre-check, make sure we properly identify the outbound request as a pingback verification
+ Akismet::pingback_forwarded_for( null, $args[0] );
+ add_filter( 'http_request_args', array( 'Akismet', 'pingback_forwarded_for' ), 10, 2 );
+
+ $comment = array(
+ 'comment_author_url' => $args[0],
+ 'comment_post_ID' => $post_id,
+ 'comment_author' => '',
+ 'comment_author_email' => '',
+ 'comment_content' => '',
+ 'comment_type' => 'pingback',
+ 'akismet_pre_check' => '1',
+ 'comment_pingback_target' => $args[1],
+ );
+
+ $comment = Akismet::auto_check_comment( $comment );
+
+ if ( isset( $comment['akismet_result'] ) && 'true' == $comment['akismet_result'] ) {
+ // Lame: tightly coupled with the IXR classes. Unfortunately the action provides no context and no way to return anything.
+ $wp_xmlrpc_server->error( new IXR_Error( 0, 'Invalid discovery target' ) );
+ }
+ }
+ }
+
+ public static function pingback_forwarded_for( $r, $url ) {
+ static $urls = array();
+
+ // Call this with $r == null to prime the callback to add headers on a specific URL
+ if ( is_null( $r ) && !in_array( $url, $urls ) ) {
+ $urls[] = $url;
+ }
+
+ // Add X-Pingback-Forwarded-For header, but only for requests to a specific URL (the apparent pingback source)
+ if ( is_array( $r ) && is_array( $r['headers'] ) && !isset( $r['headers']['X-Pingback-Forwarded-For'] ) && in_array( $url, $urls ) ) {
+ $remote_ip = preg_replace( '/[^a-fx0-9:.,]/i', '', $_SERVER['REMOTE_ADDR'] );
+
+ // Note: this assumes REMOTE_ADDR is correct, and it may not be if a reverse proxy or CDN is in use
+ $r['headers']['X-Pingback-Forwarded-For'] = $remote_ip;
+
+ // Also identify the request as a pingback verification in the UA string so it appears in logs
+ $r['user-agent'] .= '; verifying pingback from ' . $remote_ip;
+ }
+
+ return $r;
}
}
\ No newline at end of file
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