-define('AKISMET_VERSION', '2.5.9');
-define('AKISMET_PLUGIN_URL', plugin_dir_url( __FILE__ ));
-
-/** If you hardcode a WP.com API key here, all key config screens will be hidden */
-if ( defined('WPCOM_API_KEY') )
- $wpcom_api_key = constant('WPCOM_API_KEY');
-else
- $wpcom_api_key = '';
-
-if ( isset($wp_db_version) && $wp_db_version <= 9872 )
- include_once dirname( __FILE__ ) . '/legacy.php';
-
-include_once dirname( __FILE__ ) . '/widget.php';
-
-if ( is_admin() )
- require_once dirname( __FILE__ ) . '/admin.php';
-
-function akismet_init() {
- global $wpcom_api_key, $akismet_api_host, $akismet_api_port;
-
- if ( $wpcom_api_key )
- $akismet_api_host = $wpcom_api_key . '.rest.akismet.com';
- else
- $akismet_api_host = get_option('wordpress_api_key') . '.rest.akismet.com';
-
- $akismet_api_port = 80;
-}
-add_action('init', 'akismet_init');
-
-function akismet_get_key() {
- global $wpcom_api_key;
- if ( !empty($wpcom_api_key) )
- return $wpcom_api_key;
- return get_option('wordpress_api_key');
-}
-
-function akismet_check_key_status( $key, $ip = null ) {
- global $akismet_api_host, $akismet_api_port, $wpcom_api_key;
- $blog = urlencode( get_option('home') );
- if ( $wpcom_api_key )
- $key = $wpcom_api_key;
- $response = akismet_http_post("key=$key&blog=$blog", 'rest.akismet.com', '/1.1/verify-key', $akismet_api_port, $ip);
- return $response;
-}
-
-// given a response from an API call like akismet_check_key_status(), update the alert code options if an alert is present.
-function akismet_update_alert( $response ) {
- $code = $msg = null;
- if ( isset($response[0]['x-akismet-alert-code']) ) {
- $code = $response[0]['x-akismet-alert-code'];
- $msg = $response[0]['x-akismet-alert-msg'];
- }
-
- // only call update_option() if the value has changed
- if ( $code != get_option( 'akismet_alert_code' ) ) {
- update_option( 'akismet_alert_code', $code );
- update_option( 'akismet_alert_msg', $msg );
- }
-}
-
-function akismet_verify_key( $key, $ip = null ) {
- $response = akismet_check_key_status( $key, $ip );
- akismet_update_alert( $response );
- if ( !is_array($response) || !isset($response[1]) || $response[1] != 'valid' && $response[1] != 'invalid' )
- return 'failed';
- return $response[1];
-}
-
-// if we're in debug or test modes, use a reduced service level so as not to polute training or stats data
-function akismet_test_mode() {
- if ( defined('AKISMET_TEST_MODE') && AKISMET_TEST_MODE )
- return true;
- return false;
-}
-
-// return a comma-separated list of role names for the given user
-function akismet_get_user_roles( $user_id ) {
- $roles = false;
-
- if ( !class_exists('WP_User') )
- return false;
-
- if ( $user_id > 0 ) {
- $comment_user = new WP_User($user_id);
- if ( isset($comment_user->roles) )
- $roles = join(',', $comment_user->roles);
- }
-
- if ( is_multisite() && is_super_admin( $user_id ) ) {
- if ( empty( $roles ) ) {
- $roles = 'super_admin';
- } else {
- $comment_user->roles[] = 'super_admin';
- $roles = join( ',', $comment_user->roles );
- }
- }
-
- return $roles;
-}
-
-// Returns array with headers in $response[0] and body in $response[1]
-function akismet_http_post($request, $host, $path, $port = 80, $ip=null) {
- global $wp_version;
-
- $akismet_ua = "WordPress/{$wp_version} | ";
- $akismet_ua .= 'Akismet/' . constant( 'AKISMET_VERSION' );
-
- $akismet_ua = apply_filters( 'akismet_ua', $akismet_ua );
-
- $content_length = strlen( $request );
-
- $http_host = $host;
- // use a specific IP if provided
- // needed by akismet_check_server_connectivity()
- if ( $ip && long2ip( ip2long( $ip ) ) ) {
- $http_host = $ip;
- } else {
- $http_host = $host;
- }
-
- // use the WP HTTP class if it is available
- if ( function_exists( 'wp_remote_post' ) ) {
- $http_args = array(
- 'body' => $request,
- 'headers' => array(
- 'Content-Type' => 'application/x-www-form-urlencoded; ' .
- 'charset=' . get_option( 'blog_charset' ),
- 'Host' => $host,
- 'User-Agent' => $akismet_ua
- ),
- 'httpversion' => '1.0',
- 'timeout' => 15
- );
- $akismet_url = "http://{$http_host}{$path}";
- $response = wp_remote_post( $akismet_url, $http_args );
- if ( is_wp_error( $response ) )
- return '';
-
- return array( $response['headers'], $response['body'] );
- } else {
- $http_request = "POST $path HTTP/1.0\r\n";
- $http_request .= "Host: $host\r\n";
- $http_request .= 'Content-Type: application/x-www-form-urlencoded; charset=' . get_option('blog_charset') . "\r\n";
- $http_request .= "Content-Length: {$content_length}\r\n";
- $http_request .= "User-Agent: {$akismet_ua}\r\n";
- $http_request .= "\r\n";
- $http_request .= $request;
-
- $response = '';
- if( false != ( $fs = @fsockopen( $http_host, $port, $errno, $errstr, 10 ) ) ) {
- fwrite( $fs, $http_request );
-
- while ( !feof( $fs ) )
- $response .= fgets( $fs, 1160 ); // One TCP-IP packet
- fclose( $fs );
- $response = explode( "\r\n\r\n", $response, 2 );
- }
- return $response;
- }
-}
-
-// filter handler used to return a spam result to pre_comment_approved
-function akismet_result_spam( $approved ) {
- // bump the counter here instead of when the filter is added to reduce the possibility of overcounting
- if ( $incr = apply_filters('akismet_spam_count_incr', 1) )
- update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr );
- // this is a one-shot deal
- remove_filter( 'pre_comment_approved', 'akismet_result_spam' );
- return 'spam';
-}
-
-function akismet_result_hold( $approved ) {
- // once only
- remove_filter( 'pre_comment_approved', 'akismet_result_hold' );
- return '0';
-}
-
-// how many approved comments does this author have?
-function akismet_get_user_comments_approved( $user_id, $comment_author_email, $comment_author, $comment_author_url ) {
- global $wpdb;
-
- if ( !empty($user_id) )
- return $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->comments WHERE user_id = %d AND comment_approved = 1", $user_id ) );
-
- if ( !empty($comment_author_email) )
- return $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->comments WHERE comment_author_email = %s AND comment_author = %s AND comment_author_url = %s AND comment_approved = 1", $comment_author_email, $comment_author, $comment_author_url ) );
-
- return 0;
-}
-
-function akismet_microtime() {
- $mtime = explode( ' ', microtime() );
- return $mtime[1] + $mtime[0];
-}
-
-// log an event for a given comment, storing it in comment_meta
-function akismet_update_comment_history( $comment_id, $message, $event=null ) {
- global $current_user;
-
- // failsafe for old WP versions
- if ( !function_exists('add_comment_meta') )
- return false;
-
- $user = '';
- if ( is_object($current_user) && isset($current_user->user_login) )
- $user = $current_user->user_login;
-
- $event = array(
- 'time' => akismet_microtime(),
- 'message' => $message,
- 'event' => $event,
- 'user' => $user,
- );
-
- // $unique = false so as to allow multiple values per comment
- $r = add_comment_meta( $comment_id, 'akismet_history', $event, false );
-}
-
-// get the full comment history for a given comment, as an array in reverse chronological order
-function akismet_get_comment_history( $comment_id ) {
-
- // failsafe for old WP versions
- if ( !function_exists('add_comment_meta') )
- return false;
-
- $history = get_comment_meta( $comment_id, 'akismet_history', false );
- usort( $history, 'akismet_cmp_time' );
- return $history;
-}
-
-function akismet_cmp_time( $a, $b ) {
- return $a['time'] > $b['time'] ? -1 : 1;
-}
-
-// this fires on wp_insert_comment. we can't update comment_meta when akismet_auto_check_comment() runs
-// because we don't know the comment ID at that point.
-function akismet_auto_check_update_meta( $id, $comment ) {
- global $akismet_last_comment;
-
- // failsafe for old WP versions
- if ( !function_exists('add_comment_meta') )
- return false;
-
- if ( !isset( $akismet_last_comment['comment_author_email'] ) )
- $akismet_last_comment['comment_author_email'] = '';
-
- // wp_insert_comment() might be called in other contexts, so make sure this is the same comment
- // as was checked by akismet_auto_check_comment
- if ( is_object($comment) && !empty($akismet_last_comment) && is_array($akismet_last_comment) ) {
- if ( isset($akismet_last_comment['comment_post_ID']) && intval($akismet_last_comment['comment_post_ID']) == intval($comment->comment_post_ID)
- && $akismet_last_comment['comment_author'] == $comment->comment_author
- && $akismet_last_comment['comment_author_email'] == $comment->comment_author_email ) {
- // normal result: true or false
- if ( $akismet_last_comment['akismet_result'] == 'true' ) {
- update_comment_meta( $comment->comment_ID, 'akismet_result', 'true' );
- akismet_update_comment_history( $comment->comment_ID, __('Akismet caught this comment as spam'), 'check-spam' );
- if ( $comment->comment_approved != 'spam' )
- akismet_update_comment_history( $comment->comment_ID, sprintf( __('Comment status was changed to %s'), $comment->comment_approved), 'status-changed'.$comment->comment_approved );
- } elseif ( $akismet_last_comment['akismet_result'] == 'false' ) {
- update_comment_meta( $comment->comment_ID, 'akismet_result', 'false' );
- akismet_update_comment_history( $comment->comment_ID, __('Akismet cleared this comment'), 'check-ham' );
- if ( $comment->comment_approved == 'spam' ) {
- if ( wp_blacklist_check($comment->comment_author, $comment->comment_author_email, $comment->comment_author_url, $comment->comment_content, $comment->comment_author_IP, $comment->comment_agent) )
- akismet_update_comment_history( $comment->comment_ID, __('Comment was caught by wp_blacklist_check'), 'wp-blacklisted' );
- else
- akismet_update_comment_history( $comment->comment_ID, sprintf( __('Comment status was changed to %s'), $comment->comment_approved), 'status-changed-'.$comment->comment_approved );
- }
- // abnormal result: error
- } else {
- update_comment_meta( $comment->comment_ID, 'akismet_error', time() );
- akismet_update_comment_history( $comment->comment_ID, sprintf( __('Akismet was unable to check this comment (response: %s), will automatically retry again later.'), substr($akismet_last_comment['akismet_result'], 0, 50)), 'check-error' );
- }
-
- // record the complete original data as submitted for checking
- if ( isset($akismet_last_comment['comment_as_submitted']) )
- update_comment_meta( $comment->comment_ID, 'akismet_as_submitted', $akismet_last_comment['comment_as_submitted'] );
- }
- }
-}
-
-add_action( 'wp_insert_comment', 'akismet_auto_check_update_meta', 10, 2 );
-
-
-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;
- }