-function akismet_auto_check_comment( $commentdata ) {
- global $akismet_api_host, $akismet_api_port, $akismet_last_comment;
-
- $comment = $commentdata;
- $comment['user_ip'] = $_SERVER['REMOTE_ADDR'];
- $comment['user_agent'] = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : null;
- $comment['referrer'] = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : null;
- $comment['blog'] = get_option('home');
- $comment['blog_lang'] = get_locale();
- $comment['blog_charset'] = get_option('blog_charset');
- $comment['permalink'] = get_permalink($comment['comment_post_ID']);
-
- if ( !empty( $comment['user_ID'] ) ) {
- $comment['user_role'] = akismet_get_user_roles( $comment['user_ID'] );
- }
-
- $akismet_nonce_option = apply_filters( 'akismet_comment_nonce', get_option( 'akismet_comment_nonce' ) );
- $comment['akismet_comment_nonce'] = 'inactive';
- if ( $akismet_nonce_option == 'true' || $akismet_nonce_option == '' ) {
- $comment['akismet_comment_nonce'] = 'failed';
- if ( isset( $_POST['akismet_comment_nonce'] ) && wp_verify_nonce( $_POST['akismet_comment_nonce'], 'akismet_comment_nonce_' . $comment['comment_post_ID'] ) )
- $comment['akismet_comment_nonce'] = 'passed';
-
- // comment reply in wp-admin
- if ( isset( $_POST['_ajax_nonce-replyto-comment'] ) && check_ajax_referer( 'replyto-comment', '_ajax_nonce-replyto-comment' ) )
- $comment['akismet_comment_nonce'] = 'passed';
-
- }
-
- if ( akismet_test_mode() )
- $comment['is_test'] = 'true';
-
- foreach ($_POST as $key => $value ) {
- if ( is_string($value) )
- $comment["POST_{$key}"] = $value;
- }
-
- $ignore = array( 'HTTP_COOKIE', 'HTTP_COOKIE2', 'PHP_AUTH_PW' );
-
- foreach ( $_SERVER as $key => $value ) {
- if ( !in_array( $key, $ignore ) && is_string($value) )
- $comment["$key"] = $value;
- else
- $comment["$key"] = '';
- }
-
- $post = get_post( $comment['comment_post_ID'] );
- $comment[ 'comment_post_modified_gmt' ] = $post->post_modified_gmt;
-
- $query_string = '';
- foreach ( $comment as $key => $data )
- $query_string .= $key . '=' . urlencode( stripslashes($data) ) . '&';
-
- $commentdata['comment_as_submitted'] = $comment;
-
- $response = akismet_http_post($query_string, $akismet_api_host, '/1.1/comment-check', $akismet_api_port);
- do_action( 'akismet_comment_check_response', $response );
- akismet_update_alert( $response );
- $commentdata['akismet_result'] = $response[1];
- if ( 'true' == $response[1] ) {
- // akismet_spam_count will be incremented later by akismet_result_spam()
- add_filter('pre_comment_approved', 'akismet_result_spam');
-
- do_action( 'akismet_spam_caught' );
-
- $last_updated = strtotime( $post->post_modified_gmt );
- $diff = time() - $last_updated;
- $diff = $diff / 86400;
-
- if ( $post->post_type == 'post' && $diff > 30 && get_option( 'akismet_discard_month' ) == 'true' && empty($comment['user_ID']) ) {
- // akismet_result_spam() won't be called so bump the counter here
- if ( $incr = apply_filters('akismet_spam_count_incr', 1) )
- update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr );
- $redirect_to = isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : get_permalink( $post );
- wp_safe_redirect( $redirect_to );
- die();
- }
- }
-
- // if the response is neither true nor false, hold the comment for moderation and schedule a recheck
- if ( 'true' != $response[1] && 'false' != $response[1] ) {
- if ( !current_user_can('moderate_comments') ) {
- add_filter('pre_comment_approved', 'akismet_result_hold');
- }
- if ( !wp_next_scheduled( 'akismet_schedule_cron_recheck' ) ) {
- wp_schedule_single_event( time() + 1200, 'akismet_schedule_cron_recheck' );
- }
- }
-
- if ( function_exists('wp_next_scheduled') && function_exists('wp_schedule_event') ) {
- // WP 2.1+: delete old comments daily
- if ( !wp_next_scheduled('akismet_scheduled_delete') )
- wp_schedule_event(time(), 'daily', 'akismet_scheduled_delete');
- } elseif ( (mt_rand(1, 10) == 3) ) {
- // WP 2.0: run this one time in ten
- akismet_delete_old();
- }
- $akismet_last_comment = $commentdata;
-
- akismet_fix_scheduled_recheck();
- return $commentdata;
-}
-
-add_action('preprocess_comment', 'akismet_auto_check_comment', 1);
-
-function akismet_delete_old() {
- global $wpdb;
- $now_gmt = current_time('mysql', 1);
- $comment_ids = $wpdb->get_col("SELECT comment_id FROM $wpdb->comments WHERE DATE_SUB('$now_gmt', INTERVAL 15 DAY) > comment_date_gmt AND comment_approved = 'spam'");
- if ( empty( $comment_ids ) )
- return;
-
- $comma_comment_ids = implode( ', ', array_map('intval', $comment_ids) );
-
- do_action( 'delete_comment', $comment_ids );
- $wpdb->query("DELETE FROM $wpdb->comments WHERE comment_id IN ( $comma_comment_ids )");
- $wpdb->query("DELETE FROM $wpdb->commentmeta WHERE comment_id IN ( $comma_comment_ids )");
- clean_comment_cache( $comment_ids );
- $n = mt_rand(1, 5000);
- if ( apply_filters('akismet_optimize_table', ($n == 11)) ) // lucky number
- $wpdb->query("OPTIMIZE TABLE $wpdb->comments");
-
-}
-
-function akismet_delete_old_metadata() {
- global $wpdb;
-
- $now_gmt = current_time( 'mysql', 1 );
- $interval = apply_filters( 'akismet_delete_commentmeta_interval', 15 );
-
- # enfore a minimum of 1 day
- $interval = absint( $interval );
- if ( $interval < 1 ) {
- return;
- }
-
- // akismet_as_submitted meta values are large, so expire them
- // after $interval days regardless of the comment status
- while ( TRUE ) {
- $comment_ids = $wpdb->get_col( "SELECT $wpdb->comments.comment_id FROM $wpdb->commentmeta INNER JOIN $wpdb->comments USING(comment_id) WHERE meta_key = 'akismet_as_submitted' AND DATE_SUB('$now_gmt', INTERVAL {$interval} DAY) > comment_date_gmt LIMIT 10000" );
-
- if ( empty( $comment_ids ) ) {
- return;
- }
-
- foreach ( $comment_ids as $comment_id ) {
- delete_comment_meta( $comment_id, 'akismet_as_submitted' );
- }
- }
-
- /*
- $n = mt_rand( 1, 5000 );
- if ( apply_filters( 'akismet_optimize_table', ( $n == 11 ), 'commentmeta' ) ) { // lucky number
- $wpdb->query( "OPTIMIZE TABLE $wpdb->commentmeta" );
- }
- */
-}
-
-add_action('akismet_scheduled_delete', 'akismet_delete_old');
-add_action('akismet_scheduled_delete', 'akismet_delete_old_metadata');
-
-function akismet_check_db_comment( $id, $recheck_reason = 'recheck_queue' ) {
- global $wpdb, $akismet_api_host, $akismet_api_port;
-
- $id = (int) $id;
- $c = $wpdb->get_row( "SELECT * FROM $wpdb->comments WHERE comment_ID = '$id'", ARRAY_A );
- if ( !$c )
- return;
-
- $c['user_ip'] = $c['comment_author_IP'];
- $c['user_agent'] = $c['comment_agent'];
- $c['referrer'] = '';
- $c['blog'] = get_option('home');
- $c['blog_lang'] = get_locale();
- $c['blog_charset'] = get_option('blog_charset');
- $c['permalink'] = get_permalink($c['comment_post_ID']);
- $id = $c['comment_ID'];
- if ( akismet_test_mode() )
- $c['is_test'] = 'true';
- $c['recheck_reason'] = $recheck_reason;
-
- $query_string = '';
- foreach ( $c as $key => $data )
- $query_string .= $key . '=' . urlencode( stripslashes($data) ) . '&';
-
- $response = akismet_http_post($query_string, $akismet_api_host, '/1.1/comment-check', $akismet_api_port);
- return ( is_array( $response ) && isset( $response[1] ) ) ? $response[1] : false;
-}
-
-function akismet_cron_recheck() {
- global $wpdb;
-
- $status = akismet_verify_key( akismet_get_key() );
- 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' );
- return false;
- }
-
- delete_option('akismet_available_servers');
-
- $comment_errors = $wpdb->get_col( "
- SELECT comment_id
- FROM {$wpdb->prefix}commentmeta
- WHERE meta_key = 'akismet_error'
- LIMIT 100
- " );
-
- foreach ( (array) $comment_errors as $comment_id ) {
- // if the comment no longer exists, or is too old, remove the meta entry from the queue to avoid getting stuck
- $comment = get_comment( $comment_id );
- if ( !$comment || strtotime( $comment->comment_date_gmt ) < strtotime( "-15 days" ) ) {
- delete_comment_meta( $comment_id, 'akismet_error' );
- continue;
- }
-
- add_comment_meta( $comment_id, 'akismet_rechecking', true );
- $status = akismet_check_db_comment( $comment_id, 'retry' );
-
- $msg = '';
- if ( $status == 'true' ) {
- $msg = __( 'Akismet caught this comment as spam during an automatic retry.' );
- } elseif ( $status == 'false' ) {
- $msg = __( 'Akismet cleared this comment during an automatic retry.' );
- }
-
- // If we got back a legit response then update the comment history
- // other wise just bail now and try again later. No point in
- // re-trying all the comments once we hit one failure.
- if ( !empty( $msg ) ) {
- delete_comment_meta( $comment_id, 'akismet_error' );
- akismet_update_comment_history( $comment_id, $msg, 'cron-retry' );
- update_comment_meta( $comment_id, 'akismet_result', $status );
- // make sure the comment status is still pending. if it isn't, that means the user has already moved it elsewhere.
- $comment = get_comment( $comment_id );
- if ( $comment && 'unapproved' == wp_get_comment_status( $comment_id ) ) {
- if ( $status == 'true' ) {
- wp_spam_comment( $comment_id );
- } elseif ( $status == 'false' ) {
- // comment is good, but it's still in the pending queue. depending on the moderation settings
- // we may need to change it to approved.
- if ( check_comment($comment->comment_author, $comment->comment_author_email, $comment->comment_author_url, $comment->comment_content, $comment->comment_author_IP, $comment->comment_agent, $comment->comment_type) )
- wp_set_comment_status( $comment_id, 1 );
- }
- }
- } else {
- delete_comment_meta( $comment_id, 'akismet_rechecking' );
- wp_schedule_single_event( time() + 1200, 'akismet_schedule_cron_recheck' );
- 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' );
- }
-}
-add_action( 'akismet_schedule_cron_recheck', 'akismet_cron_recheck' );
-
-function akismet_add_comment_nonce( $post_id ) {
- echo '<p style="display: none;">';
- wp_nonce_field( 'akismet_comment_nonce_' . $post_id, 'akismet_comment_nonce', FALSE );
- echo '</p>';
-}
-
-$akismet_comment_nonce_option = apply_filters( 'akismet_comment_nonce', get_option( 'akismet_comment_nonce' ) );
-
-if ( $akismet_comment_nonce_option == 'true' || $akismet_comment_nonce_option == '' )
- add_action( 'comment_form', 'akismet_add_comment_nonce' );
-
-global $wp_version;
-if ( '3.0.5' == $wp_version ) {
- remove_filter( 'comment_text', 'wp_kses_data' );
- if ( is_admin() )
- add_filter( 'comment_text', 'wp_kses_post' );
-}
-
-function akismet_fix_scheduled_recheck() {
- $future_check = wp_next_scheduled( 'akismet_schedule_cron_recheck' );
- if ( !$future_check ) {
- return;
- }
-
- if ( get_option( 'akismet_alert_code' ) > 0 ) {
- return;
- }
-
- $check_range = time() + 1200;
- if ( $future_check > $check_range ) {
- wp_clear_scheduled_hook( 'akismet_schedule_cron_recheck' );
- wp_schedule_single_event( time() + 300, 'akismet_schedule_cron_recheck' );
- }
-}