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Diffstat (limited to 'plugins/akismet/class.akismet.php')
-rw-r--r--plugins/akismet/class.akismet.php1423
1 files changed, 0 insertions, 1423 deletions
diff --git a/plugins/akismet/class.akismet.php b/plugins/akismet/class.akismet.php
deleted file mode 100644
index f24fd63d..00000000
--- a/plugins/akismet/class.akismet.php
+++ /dev/null
@@ -1,1423 +0,0 @@
-<?php
-
-class Akismet {
- const API_HOST = 'rest.akismet.com';
- const API_PORT = 80;
- const MAX_DELAY_BEFORE_MODERATION_EMAIL = 86400; // One day in seconds
-
- private static $last_comment = '';
- private static $initiated = false;
- private static $prevent_moderation_email_for_these_comments = array();
- private static $last_comment_result = null;
- private static $comment_as_submitted_allowed_keys = array( 'blog' => '', 'blog_charset' => '', 'blog_lang' => '', 'blog_ua' => '', 'comment_agent' => '', 'comment_author' => '', 'comment_author_IP' => '', 'comment_author_email' => '', 'comment_author_url' => '', 'comment_content' => '', 'comment_date_gmt' => '', 'comment_tags' => '', 'comment_type' => '', 'guid' => '', 'is_test' => '', 'permalink' => '', 'reporter' => '', 'site_domain' => '', 'submit_referer' => '', 'submit_uri' => '', 'user_ID' => '', 'user_agent' => '', 'user_id' => '', 'user_ip' => '' );
- private static $is_rest_api_call = false;
-
- public static function init() {
- if ( ! self::$initiated ) {
- self::init_hooks();
- }
- }
-
- /**
- * Initializes WordPress hooks
- */
- private static function init_hooks() {
- self::$initiated = true;
-
- add_action( 'wp_insert_comment', array( 'Akismet', 'auto_check_update_meta' ), 10, 2 );
- add_filter( 'preprocess_comment', array( 'Akismet', 'auto_check_comment' ), 1 );
- add_filter( 'rest_pre_insert_comment', array( 'Akismet', 'rest_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_scheduled_delete', array( 'Akismet', 'delete_orphaned_commentmeta' ) );
- add_action( 'akismet_schedule_cron_recheck', array( 'Akismet', 'cron_recheck' ) );
-
- add_action( 'comment_form', array( 'Akismet', 'add_comment_nonce' ), 1 );
-
- add_action( 'admin_head-edit-comments.php', array( 'Akismet', 'load_form_js' ) );
- add_action( 'comment_form', array( 'Akismet', 'load_form_js' ) );
- add_action( 'comment_form', array( 'Akismet', 'inject_ak_js' ) );
- add_filter( 'script_loader_tag', array( 'Akismet', 'set_form_js_async' ), 10, 3 );
-
- add_filter( 'comment_moderation_recipients', array( 'Akismet', 'disable_moderation_emails_if_unreachable' ), 1000, 2 );
- add_filter( 'pre_comment_approved', array( 'Akismet', 'last_comment_status' ), 10, 2 );
-
- 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' ) );
-
- // Jetpack compatibility
- add_filter( 'jetpack_options_whitelist', array( 'Akismet', 'add_to_jetpack_options_whitelist' ) );
- add_action( 'update_option_wordpress_api_key', array( 'Akismet', 'updated_option' ), 10, 2 );
- add_action( 'add_option_wordpress_api_key', array( 'Akismet', 'added_option' ), 10, 2 );
-
- add_action( 'comment_form_after', array( 'Akismet', 'display_comment_form_privacy_notice' ) );
- }
-
- public static function get_api_key() {
- return apply_filters( 'akismet_get_api_key', defined('WPCOM_API_KEY') ? constant('WPCOM_API_KEY') : get_option('wordpress_api_key') );
- }
-
- public static function check_key_status( $key, $ip = null ) {
- return self::http_post( Akismet::build_query( array( 'key' => $key, 'blog' => get_option( 'home' ) ) ), 'verify-key', $ip );
- }
-
- public static function verify_key( $key, $ip = null ) {
- // Shortcut for obviously invalid keys.
- if ( strlen( $key ) != 12 ) {
- return 'invalid';
- }
-
- $response = self::check_key_status( $key, $ip );
-
- if ( $response[1] != 'valid' && $response[1] != 'invalid' )
- return 'failed';
-
- return $response[1];
- }
-
- public static function deactivate_key( $key ) {
- $response = self::http_post( Akismet::build_query( array( 'key' => $key, 'blog' => get_option( 'home' ) ) ), 'deactivate' );
-
- if ( $response[1] != 'deactivated' )
- return 'failed';
-
- return $response[1];
- }
-
- /**
- * Add the akismet option to the Jetpack options management whitelist.
- *
- * @param array $options The list of whitelisted option names.
- * @return array The updated whitelist
- */
- public static function add_to_jetpack_options_whitelist( $options ) {
- $options[] = 'wordpress_api_key';
- return $options;
- }
-
- /**
- * When the akismet option is updated, run the registration call.
- *
- * This should only be run when the option is updated from the Jetpack/WP.com
- * API call, and only if the new key is different than the old key.
- *
- * @param mixed $old_value The old option value.
- * @param mixed $value The new option value.
- */
- public static function updated_option( $old_value, $value ) {
- // Not an API call
- if ( ! class_exists( 'WPCOM_JSON_API_Update_Option_Endpoint' ) ) {
- return;
- }
- // Only run the registration if the old key is different.
- if ( $old_value !== $value ) {
- self::verify_key( $value );
- }
- }
-
- /**
- * Treat the creation of an API key the same as updating the API key to a new value.
- *
- * @param mixed $option_name Will always be "wordpress_api_key", until something else hooks in here.
- * @param mixed $value The option value.
- */
- public static function added_option( $option_name, $value ) {
- if ( 'wordpress_api_key' === $option_name ) {
- return self::updated_option( '', $value );
- }
- }
-
- public static function rest_auto_check_comment( $commentdata ) {
- self::$is_rest_api_call = true;
-
- return self::auto_check_comment( $commentdata );
- }
-
- public static function auto_check_comment( $commentdata ) {
- self::$last_comment_result = null;
-
- $comment = $commentdata;
-
- $comment['user_ip'] = self::get_ip_address();
- $comment['user_agent'] = self::get_user_agent();
- $comment['referrer'] = self::get_referer();
- $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'] );
- }
-
- /** See filter documentation in init_hooks(). */
- $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 ( self::is_test_mode() )
- $comment['is_test'] = 'true';
-
- foreach( $_POST as $key => $value ) {
- if ( is_string( $value ) )
- $comment["POST_{$key}"] = $value;
- }
-
- foreach ( $_SERVER as $key => $value ) {
- if ( ! is_string( $value ) ) {
- continue;
- }
-
- if ( preg_match( "/^HTTP_COOKIE/", $key ) ) {
- continue;
- }
-
- // Send any potentially useful $_SERVER vars, but avoid sending junk we don't need.
- if ( preg_match( "/^(HTTP_|REMOTE_ADDR|REQUEST_URI|DOCUMENT_URI)/", $key ) ) {
- $comment[ "$key" ] = $value;
- }
- }
-
- $post = get_post( $comment['comment_post_ID'] );
-
- if ( ! is_null( $post ) ) {
- // $post can technically be null, although in the past, it's always been an indicator of another plugin interfering.
- $comment[ 'comment_post_modified_gmt' ] = $post->post_modified_gmt;
- }
-
- $response = self::http_post( Akismet::build_query( $comment ), 'comment-check' );
-
- do_action( 'akismet_comment_check_response', $response );
-
- $commentdata['comment_as_submitted'] = array_intersect_key( $comment, self::$comment_as_submitted_allowed_keys );
- $commentdata['akismet_result'] = $response[1];
-
- if ( isset( $response[0]['x-akismet-pro-tip'] ) )
- $commentdata['akismet_pro_tip'] = $response[0]['x-akismet-pro-tip'];
-
- if ( isset( $response[0]['x-akismet-error'] ) ) {
- // An error occurred that we anticipated (like a suspended key) and want the user to act on.
- // Send to moderation.
- self::$last_comment_result = '0';
- }
- else if ( 'true' == $response[1] ) {
- // akismet_spam_count will be incremented later by comment_is_spam()
- self::$last_comment_result = 'spam';
-
- $discard = ( isset( $commentdata['akismet_pro_tip'] ) && $commentdata['akismet_pro_tip'] === 'discard' && self::allow_discard() );
-
- do_action( 'akismet_spam_caught', $discard );
-
- if ( $discard ) {
- // The spam is obvious, so we're bailing out early.
- // 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' ) + $incr );
- }
-
- if ( self::$is_rest_api_call ) {
- return new WP_Error( 'akismet_rest_comment_discarded', __( 'Comment discarded.', 'akismet' ) );
- }
- else {
- // Redirect back to the previous page, or failing that, the post permalink, or failing that, the homepage of the blog.
- $redirect_to = isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : ( $post ? get_permalink( $post ) : home_url() );
- wp_safe_redirect( esc_url_raw( $redirect_to ) );
- die();
- }
- }
- else if ( self::$is_rest_api_call ) {
- // The way the REST API structures its calls, we can set the comment_approved value right away.
- $commentdata['comment_approved'] = 'spam';
- }
- }
-
- // if the response is neither true nor false, hold the comment for moderation and schedule a recheck
- if ( 'true' != $response[1] && 'false' != $response[1] ) {
- if ( !current_user_can('moderate_comments') ) {
- // Comment status should be moderated
- self::$last_comment_result = '0';
- }
-
- 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-' . $response[1] );
- }
-
- self::$prevent_moderation_email_for_these_comments[] = $commentdata;
- }
-
- // Delete old comments daily
- if ( ! wp_next_scheduled( 'akismet_scheduled_delete' ) ) {
- wp_schedule_event( time(), 'daily', 'akismet_scheduled_delete' );
- }
-
- self::set_last_comment( $commentdata );
- self::fix_scheduled_recheck();
-
- return $commentdata;
- }
-
- public static function get_last_comment() {
- return self::$last_comment;
- }
-
- public static function set_last_comment( $comment ) {
- if ( is_null( $comment ) ) {
- self::$last_comment = null;
- }
- else {
- // We filter it here so that it matches the filtered comment data that we'll have to compare against later.
- // wp_filter_comment expects comment_author_IP
- self::$last_comment = wp_filter_comment(
- array_merge(
- array( 'comment_author_IP' => self::get_ip_address() ),
- $comment
- )
- );
- }
- }
-
- // this fires on wp_insert_comment. we can't update comment_meta when auto_check_comment() runs
- // because we don't know the comment ID at that point.
- public static function auto_check_update_meta( $id, $comment ) {
- // wp_insert_comment() might be called in other contexts, so make sure this is the same comment
- // as was checked by auto_check_comment
- if ( is_object( $comment ) && !empty( self::$last_comment ) && is_array( self::$last_comment ) ) {
- if ( self::matches_last_comment( $comment ) ) {
-
- load_plugin_textdomain( 'akismet' );
-
- // normal result: true or false
- if ( self::$last_comment['akismet_result'] == 'true' ) {
- update_comment_meta( $comment->comment_ID, 'akismet_result', 'true' );
- self::update_comment_history( $comment->comment_ID, '', 'check-spam' );
- if ( $comment->comment_approved != 'spam' )
- self::update_comment_history(
- $comment->comment_ID,
- '',
- 'status-changed-'.$comment->comment_approved
- );
- }
- elseif ( self::$last_comment['akismet_result'] == 'false' ) {
- update_comment_meta( $comment->comment_ID, 'akismet_result', 'false' );
- self::update_comment_history( $comment->comment_ID, '', 'check-ham' );
- // Status could be spam or trash, depending on the WP version and whether this change applies:
- // https://core.trac.wordpress.org/changeset/34726
- if ( $comment->comment_approved == 'spam' || $comment->comment_approved == 'trash' ) {
- if ( wp_blacklist_check($comment->comment_author, $comment->comment_author_email, $comment->comment_author_url, $comment->comment_content, $comment->comment_author_IP, $comment->comment_agent) )
- self::update_comment_history( $comment->comment_ID, '', 'wp-blacklisted' );
- else
- self::update_comment_history( $comment->comment_ID, '', 'status-changed-'.$comment->comment_approved );
- }
- } // abnormal result: error
- else {
- update_comment_meta( $comment->comment_ID, 'akismet_error', time() );
- self::update_comment_history(
- $comment->comment_ID,
- '',
- 'check-error',
- array( 'response' => substr( self::$last_comment['akismet_result'], 0, 50 ) )
- );
- }
-
- // record the complete original data as submitted for checking
- if ( isset( self::$last_comment['comment_as_submitted'] ) )
- update_comment_meta( $comment->comment_ID, 'akismet_as_submitted', self::$last_comment['comment_as_submitted'] );
-
- if ( isset( self::$last_comment['akismet_pro_tip'] ) )
- update_comment_meta( $comment->comment_ID, 'akismet_pro_tip', self::$last_comment['akismet_pro_tip'] );
- }
- }
- }
-
- public static function delete_old_comments() {
- global $wpdb;
-
- /**
- * 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();
-
- foreach ( $comment_ids as $comment_id ) {
- do_action( 'delete_comment', $comment_id );
- do_action( 'akismet_batch_delete_count', __FUNCTION__ );
- }
-
- // Prepared as strings since comment_id is an unsigned BIGINT, and using %d will constrain the value to the maximum signed BIGINT.
- $format_string = implode( ", ", array_fill( 0, count( $comment_ids ), '%s' ) );
-
- $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->comments} WHERE comment_id IN ( " . $format_string . " )", $comment_ids ) );
- $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->commentmeta} WHERE comment_id IN ( " . $format_string . " )", $comment_ids ) );
-
- clean_comment_cache( $comment_ids );
- do_action( 'akismet_delete_comment_batch', count( $comment_ids ) );
- }
-
- if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->comments ) ) // lucky number
- $wpdb->query("OPTIMIZE TABLE {$wpdb->comments}");
- }
-
- public static function delete_old_comments_meta() {
- global $wpdb;
-
- $interval = apply_filters( 'akismet_delete_commentmeta_interval', 15 );
-
- # enforce a minimum of 1 day
- $interval = absint( $interval );
- if ( $interval < 1 )
- $interval = 1;
-
- // akismet_as_submitted meta values are large, so expire them
- // after $interval days regardless of the comment status
- while ( $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT m.comment_id FROM {$wpdb->commentmeta} as m INNER JOIN {$wpdb->comments} as c USING(comment_id) WHERE m.meta_key = 'akismet_as_submitted' AND DATE_SUB(NOW(), INTERVAL %d DAY) > c.comment_date_gmt LIMIT 10000", $interval ) ) ) {
- if ( empty( $comment_ids ) )
- return;
-
- $wpdb->queries = array();
-
- foreach ( $comment_ids as $comment_id ) {
- delete_comment_meta( $comment_id, 'akismet_as_submitted' );
- do_action( 'akismet_batch_delete_count', __FUNCTION__ );
- }
-
- do_action( 'akismet_delete_commentmeta_batch', count( $comment_ids ) );
- }
-
- if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->commentmeta ) ) // lucky number
- $wpdb->query("OPTIMIZE TABLE {$wpdb->commentmeta}");
- }
-
- // Clear out comments meta that no longer have corresponding comments in the database
- public static function delete_orphaned_commentmeta() {
- global $wpdb;
-
- $last_meta_id = 0;
- $start_time = isset( $_SERVER['REQUEST_TIME_FLOAT'] ) ? $_SERVER['REQUEST_TIME_FLOAT'] : microtime( true );
- $max_exec_time = max( ini_get('max_execution_time') - 5, 3 );
-
- while ( $commentmeta_results = $wpdb->get_results( $wpdb->prepare( "SELECT m.meta_id, m.comment_id, m.meta_key FROM {$wpdb->commentmeta} as m LEFT JOIN {$wpdb->comments} as c USING(comment_id) WHERE c.comment_id IS NULL AND m.meta_id > %d ORDER BY m.meta_id LIMIT 1000", $last_meta_id ) ) ) {
- if ( empty( $commentmeta_results ) )
- return;
-
- $wpdb->queries = array();
-
- $commentmeta_deleted = 0;
-
- foreach ( $commentmeta_results as $commentmeta ) {
- if ( 'akismet_' == substr( $commentmeta->meta_key, 0, 8 ) ) {
- delete_comment_meta( $commentmeta->comment_id, $commentmeta->meta_key );
- do_action( 'akismet_batch_delete_count', __FUNCTION__ );
- $commentmeta_deleted++;
- }
-
- $last_meta_id = $commentmeta->meta_id;
- }
-
- do_action( 'akismet_delete_commentmeta_batch', $commentmeta_deleted );
-
- // If we're getting close to max_execution_time, quit for this round.
- if ( microtime(true) - $start_time > $max_exec_time )
- return;
- }
-
- if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->commentmeta ) ) // lucky number
- $wpdb->query("OPTIMIZE TABLE {$wpdb->commentmeta}");
- }
-
- // how many approved comments does this author have?
- public static function get_user_comments_approved( $user_id, $comment_author_email, $comment_author, $comment_author_url ) {
- global $wpdb;
-
- if ( !empty( $user_id ) )
- return (int) $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 (int) $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;
- }
-
- // get the full comment history for a given comment, as an array in reverse chronological order
- public static function get_comment_history( $comment_id ) {
- $history = get_comment_meta( $comment_id, 'akismet_history', false );
- usort( $history, array( 'Akismet', '_cmp_time' ) );
- return $history;
- }
-
- /**
- * Log an event for a given comment, storing it in comment_meta.
- *
- * @param int $comment_id The ID of the relevant comment.
- * @param string $message The string description of the event. No longer used.
- * @param string $event The event code.
- * @param array $meta Metadata about the history entry. e.g., the user that reported or changed the status of a given comment.
- */
- public static function update_comment_history( $comment_id, $message, $event=null, $meta=null ) {
- global $current_user;
-
- $user = '';
-
- $event = array(
- 'time' => self::_get_microtime(),
- 'event' => $event,
- );
-
- if ( is_object( $current_user ) && isset( $current_user->user_login ) ) {
- $event['user'] = $current_user->user_login;
- }
-
- if ( ! empty( $meta ) ) {
- $event['meta'] = $meta;
- }
-
- // $unique = false so as to allow multiple values per comment
- $r = add_comment_meta( $comment_id, 'akismet_history', $event, false );
- }
-
- public static function check_db_comment( $id, $recheck_reason = 'recheck_queue' ) {
- global $wpdb;
-
- $c = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$wpdb->comments} WHERE comment_ID = %d", $id ), ARRAY_A );
-
- if ( ! $c ) {
- return new WP_Error( 'invalid-comment-id', __( 'Comment not found.', 'akismet' ) );
- }
-
- $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']);
- $c['recheck_reason'] = $recheck_reason;
-
- $c['user_role'] = '';
- if ( ! empty( $c['user_ID'] ) ) {
- $c['user_role'] = Akismet::get_user_roles( $c['user_ID'] );
- }
-
- if ( self::is_test_mode() )
- $c['is_test'] = 'true';
-
- $response = self::http_post( Akismet::build_query( $c ), 'comment-check' );
-
- if ( ! empty( $response[1] ) ) {
- return $response[1];
- }
-
- return false;
- }
-
- public static function recheck_comment( $id, $recheck_reason = 'recheck_queue' ) {
- add_comment_meta( $id, 'akismet_rechecking', true );
-
- $api_response = self::check_db_comment( $id, $recheck_reason );
-
- delete_comment_meta( $id, 'akismet_rechecking' );
-
- if ( is_wp_error( $api_response ) ) {
- // Invalid comment ID.
- }
- else if ( 'true' === $api_response ) {
- wp_set_comment_status( $id, 'spam' );
- update_comment_meta( $id, 'akismet_result', 'true' );
- delete_comment_meta( $id, 'akismet_error' );
- delete_comment_meta( $id, 'akismet_delayed_moderation_email' );
- Akismet::update_comment_history( $id, '', 'recheck-spam' );
- }
- elseif ( 'false' === $api_response ) {
- update_comment_meta( $id, 'akismet_result', 'false' );
- delete_comment_meta( $id, 'akismet_error' );
- delete_comment_meta( $id, 'akismet_delayed_moderation_email' );
- Akismet::update_comment_history( $id, '', 'recheck-ham' );
- }
- else {
- // abnormal result: error
- update_comment_meta( $id, 'akismet_result', 'error' );
- Akismet::update_comment_history(
- $id,
- '',
- 'recheck-error',
- array( 'response' => substr( $api_response, 0, 50 ) )
- );
- }
-
- return $api_response;
- }
-
- public static function transition_comment_status( $new_status, $old_status, $comment ) {
-
- if ( $new_status == $old_status )
- return;
-
- if ( 'spam' === $new_status || 'spam' === $old_status ) {
- // Clear the cache of the "X comments in your spam queue" count on the dashboard.
- wp_cache_delete( 'akismet_spam_count', 'widget' );
- }
-
- # we don't need to record a history item for deleted comments
- if ( $new_status == 'delete' )
- return;
-
- if ( !current_user_can( 'edit_post', $comment->comment_post_ID ) && !current_user_can( 'moderate_comments' ) )
- return;
-
- if ( defined('WP_IMPORTING') && WP_IMPORTING == true )
- return;
-
- // if this is present, it means the status has been changed by a re-check, not an explicit user action
- if ( get_comment_meta( $comment->comment_ID, 'akismet_rechecking' ) )
- return;
-
- // Assumption alert:
- // We want to submit comments to Akismet only when a moderator explicitly spams or approves it - not if the status
- // is changed automatically by another plugin. Unfortunately WordPress doesn't provide an unambiguous way to
- // determine why the transition_comment_status action was triggered. And there are several different ways by which
- // to spam and unspam comments: bulk actions, ajax, links in moderation emails, the dashboard, and perhaps others.
- // We'll assume that this is an explicit user action if certain POST/GET variables exist.
- if (
- // status=spam: Marking as spam via the REST API or...
- // status=unspam: I'm not sure. Maybe this used to be used instead of status=approved? Or the UI for removing from spam but not approving has been since removed?...
- // status=approved: Unspamming via the REST API (Calypso) or...
- ( isset( $_POST['status'] ) && in_array( $_POST['status'], array( 'spam', 'unspam', 'approved', ) ) )
- // spam=1: Clicking "Spam" underneath a comment in wp-admin and allowing the AJAX request to happen.
- || ( isset( $_POST['spam'] ) && (int) $_POST['spam'] == 1 )
- // unspam=1: Clicking "Not Spam" underneath a comment in wp-admin and allowing the AJAX request to happen. Or, clicking "Undo" after marking something as spam.
- || ( isset( $_POST['unspam'] ) && (int) $_POST['unspam'] == 1 )
- // comment_status=spam/unspam: It's unclear where this is happening.
- || ( isset( $_POST['comment_status'] ) && in_array( $_POST['comment_status'], array( 'spam', 'unspam' ) ) )
- // action=spam: Choosing "Mark as Spam" from the Bulk Actions dropdown in wp-admin (or the "Spam it" link in notification emails).
- // action=unspam: Choosing "Not Spam" from the Bulk Actions dropdown in wp-admin.
- // action=spamcomment: Following the "Spam" link below a comment in wp-admin (not allowing AJAX request to happen).
- // action=unspamcomment: Following the "Not Spam" link below a comment in wp-admin (not allowing AJAX request to happen).
- || ( isset( $_GET['action'] ) && in_array( $_GET['action'], array( 'spam', 'unspam', 'spamcomment', 'unspamcomment', ) ) )
- // action=editedcomment: Editing a comment via wp-admin (and possibly changing its status).
- || ( isset( $_POST['action'] ) && in_array( $_POST['action'], array( 'editedcomment' ) ) )
- // for=jetpack: Moderation via the WordPress app, Calypso, anything powered by the Jetpack connection.
- || ( isset( $_GET['for'] ) && ( 'jetpack' == $_GET['for'] ) && ( ! defined( 'IS_WPCOM' ) || ! IS_WPCOM ) )
- // Certain WordPress.com API requests
- || ( defined( 'REST_API_REQUEST' ) && REST_API_REQUEST )
- // WordPress.org REST API requests
- || ( defined( 'REST_REQUEST' ) && REST_REQUEST )
- ) {
- if ( $new_status == 'spam' && ( $old_status == 'approved' || $old_status == 'unapproved' || !$old_status ) ) {
- return self::submit_spam_comment( $comment->comment_ID );
- } elseif ( $old_status == 'spam' && ( $new_status == 'approved' || $new_status == 'unapproved' ) ) {
- return self::submit_nonspam_comment( $comment->comment_ID );
- }
- }
-
- self::update_comment_history( $comment->comment_ID, '', 'status-' . $new_status );
- }
-
- public static function submit_spam_comment( $comment_id ) {
- global $wpdb, $current_user, $current_site;
-
- $comment_id = (int) $comment_id;
-
- $comment = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$wpdb->comments} WHERE comment_ID = %d", $comment_id ) );
-
- if ( !$comment ) // it was deleted
- return;
-
- if ( 'spam' != $comment->comment_approved )
- return;
-
- // use the original version stored in comment_meta if available
- $as_submitted = self::sanitize_comment_as_submitted( get_comment_meta( $comment_id, 'akismet_as_submitted', true ) );
-
- if ( $as_submitted && is_array( $as_submitted ) && isset( $as_submitted['comment_content'] ) )
- $comment = (object) array_merge( (array)$comment, $as_submitted );
-
- $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 ( is_object($current_user) )
- $comment->reporter = $current_user->user_login;
-
- if ( is_object($current_site) )
- $comment->site_domain = $current_site->domain;
-
- $comment->user_role = '';
- if ( ! empty( $comment->user_ID ) ) {
- $comment->user_role = Akismet::get_user_roles( $comment->user_ID );
- }
-
- if ( self::is_test_mode() )
- $comment->is_test = 'true';
-
- $post = get_post( $comment->comment_post_ID );
-
- if ( ! is_null( $post ) ) {
- $comment->comment_post_modified_gmt = $post->post_modified_gmt;
- }
-
- $response = Akismet::http_post( Akismet::build_query( $comment ), 'submit-spam' );
- if ( $comment->reporter ) {
- self::update_comment_history( $comment_id, '', 'report-spam' );
- update_comment_meta( $comment_id, 'akismet_user_result', 'true' );
- update_comment_meta( $comment_id, 'akismet_user', $comment->reporter );
- }
-
- do_action('akismet_submit_spam_comment', $comment_id, $response[1]);
- }
-
- public static function submit_nonspam_comment( $comment_id ) {
- global $wpdb, $current_user, $current_site;
-
- $comment_id = (int) $comment_id;
-
- $comment = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM {$wpdb->comments} WHERE comment_ID = %d", $comment_id ) );
- if ( !$comment ) // it was deleted
- return;
-
- // use the original version stored in comment_meta if available
- $as_submitted = self::sanitize_comment_as_submitted( get_comment_meta( $comment_id, 'akismet_as_submitted', true ) );
-
- if ( $as_submitted && is_array($as_submitted) && isset($as_submitted['comment_content']) )
- $comment = (object) array_merge( (array)$comment, $as_submitted );
-
- $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 );
- $comment->user_role = '';
-
- if ( is_object($current_user) )
- $comment->reporter = $current_user->user_login;
-
- if ( is_object($current_site) )
- $comment->site_domain = $current_site->domain;
-
- if ( ! empty( $comment->user_ID ) ) {
- $comment->user_role = Akismet::get_user_roles( $comment->user_ID );
- }
-
- if ( Akismet::is_test_mode() )
- $comment->is_test = 'true';
-
- $post = get_post( $comment->comment_post_ID );
-
- if ( ! is_null( $post ) ) {
- $comment->comment_post_modified_gmt = $post->post_modified_gmt;
- }
-
- $response = self::http_post( Akismet::build_query( $comment ), 'submit-ham' );
- if ( $comment->reporter ) {
- self::update_comment_history( $comment_id, '', 'report-ham' );
- update_comment_meta( $comment_id, 'akismet_user_result', 'false' );
- update_comment_meta( $comment_id, 'akismet_user', $comment->reporter );
- }
-
- do_action('akismet_submit_nonspam_comment', $comment_id, $response[1]);
- }
-
- public static function cron_recheck() {
- global $wpdb;
-
- $api_key = self::get_api_key();
-
- $status = self::verify_key( $api_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' );
- do_action( 'akismet_scheduled_recheck', 'key-problem-' . get_option( 'akismet_alert_code' ) . '-' . $status );
- return false;
- }
-
- delete_option('akismet_available_servers');
-
- $comment_errors = $wpdb->get_col( "SELECT comment_id FROM {$wpdb->commentmeta} WHERE meta_key = 'akismet_error' LIMIT 100" );
-
- load_plugin_textdomain( 'akismet' );
-
- 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 // Comment has been deleted
- || strtotime( $comment->comment_date_gmt ) < strtotime( "-15 days" ) // Comment is too old.
- || $comment->comment_approved !== "0" // Comment is no longer in the Pending queue
- ) {
- delete_comment_meta( $comment_id, 'akismet_error' );
- delete_comment_meta( $comment_id, 'akismet_delayed_moderation_email' );
- continue;
- }
-
- add_comment_meta( $comment_id, 'akismet_rechecking', true );
- $status = self::check_db_comment( $comment_id, 'retry' );
-
- $event = '';
- if ( $status == 'true' ) {
- $event = 'cron-retry-spam';
- } elseif ( $status == 'false' ) {
- $event = 'cron-retry-ham';
- }
-
- // 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( $event ) ) {
- delete_comment_meta( $comment_id, 'akismet_error' );
- self::update_comment_history( $comment_id, '', $event );
- 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 if ( get_comment_meta( $comment_id, 'akismet_delayed_moderation_email', true ) )
- wp_notify_moderator( $comment_id );
- }
- }
-
- delete_comment_meta( $comment_id, 'akismet_delayed_moderation_email' );
- } else {
- // If this comment has been pending moderation for longer than MAX_DELAY_BEFORE_MODERATION_EMAIL,
- // send a moderation email now.
- if ( ( intval( gmdate( 'U' ) ) - strtotime( $comment->comment_date_gmt ) ) < self::MAX_DELAY_BEFORE_MODERATION_EMAIL ) {
- delete_comment_meta( $comment_id, 'akismet_delayed_moderation_email' );
- wp_notify_moderator( $comment_id );
- }
-
- 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' );
- }
- }
-
- public static function 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' );
- do_action( 'akismet_scheduled_recheck', 'fix-scheduled-recheck' );
- }
- }
-
- public static function add_comment_nonce( $post_id ) {
- /**
- * To disable the Akismet comment nonce, add a filter for the 'akismet_comment_nonce' tag
- * and return any string value that is not 'true' or '' (empty string).
- *
- * Don't return boolean false, because that implies that the 'akismet_comment_nonce' option
- * has not been set and that Akismet should just choose the default behavior for that
- * situation.
- */
- $akismet_comment_nonce_option = apply_filters( 'akismet_comment_nonce', get_option( 'akismet_comment_nonce' ) );
-
- if ( $akismet_comment_nonce_option == 'true' || $akismet_comment_nonce_option == '' ) {
- echo '<p style="display: none;">';
- wp_nonce_field( 'akismet_comment_nonce_' . $post_id, 'akismet_comment_nonce', FALSE );
- echo '</p>';
- }
- }
-
- public static function is_test_mode() {
- return defined('AKISMET_TEST_MODE') && AKISMET_TEST_MODE;
- }
-
- public static function allow_discard() {
- if ( defined( 'DOING_AJAX' ) && DOING_AJAX )
- return false;
- if ( is_user_logged_in() )
- return false;
-
- return ( get_option( 'akismet_strictness' ) === '1' );
- }
-
- public static function get_ip_address() {
- return isset( $_SERVER['REMOTE_ADDR'] ) ? $_SERVER['REMOTE_ADDR'] : null;
- }
-
- /**
- * Do these two comments, without checking the comment_ID, "match"?
- *
- * @param mixed $comment1 A comment object or array.
- * @param mixed $comment2 A comment object or array.
- * @return bool Whether the two comments should be treated as the same comment.
- */
- private static function comments_match( $comment1, $comment2 ) {
- $comment1 = (array) $comment1;
- $comment2 = (array) $comment2;
-
- // Set default values for these strings that we check in order to simplify
- // the checks and avoid PHP warnings.
- if ( ! isset( $comment1['comment_author'] ) ) {
- $comment1['comment_author'] = '';
- }
-
- if ( ! isset( $comment2['comment_author'] ) ) {
- $comment2['comment_author'] = '';
- }
-
- if ( ! isset( $comment1['comment_author_email'] ) ) {
- $comment1['comment_author_email'] = '';
- }
-
- if ( ! isset( $comment2['comment_author_email'] ) ) {
- $comment2['comment_author_email'] = '';
- }
-
- $comments_match = (
- isset( $comment1['comment_post_ID'], $comment2['comment_post_ID'] )
- && intval( $comment1['comment_post_ID'] ) == intval( $comment2['comment_post_ID'] )
- && (
- // The comment author length max is 255 characters, limited by the TINYTEXT column type.
- // If the comment author includes multibyte characters right around the 255-byte mark, they
- // may be stripped when the author is saved in the DB, so a 300+ char author may turn into
- // a 253-char author when it's saved, not 255 exactly. The longest possible character is
- // theoretically 6 bytes, so we'll only look at the first 248 bytes to be safe.
- substr( $comment1['comment_author'], 0, 248 ) == substr( $comment2['comment_author'], 0, 248 )
- || substr( stripslashes( $comment1['comment_author'] ), 0, 248 ) == substr( $comment2['comment_author'], 0, 248 )
- || substr( $comment1['comment_author'], 0, 248 ) == substr( stripslashes( $comment2['comment_author'] ), 0, 248 )
- // Certain long comment author names will be truncated to nothing, depending on their encoding.
- || ( ! $comment1['comment_author'] && strlen( $comment2['comment_author'] ) > 248 )
- || ( ! $comment2['comment_author'] && strlen( $comment1['comment_author'] ) > 248 )
- )
- && (
- // The email max length is 100 characters, limited by the VARCHAR(100) column type.
- // Same argument as above for only looking at the first 93 characters.
- substr( $comment1['comment_author_email'], 0, 93 ) == substr( $comment2['comment_author_email'], 0, 93 )
- || substr( stripslashes( $comment1['comment_author_email'] ), 0, 93 ) == substr( $comment2['comment_author_email'], 0, 93 )
- || substr( $comment1['comment_author_email'], 0, 93 ) == substr( stripslashes( $comment2['comment_author_email'] ), 0, 93 )
- // Very long emails can be truncated and then stripped if the [0:100] substring isn't a valid address.
- || ( ! $comment1['comment_author_email'] && strlen( $comment2['comment_author_email'] ) > 100 )
- || ( ! $comment2['comment_author_email'] && strlen( $comment1['comment_author_email'] ) > 100 )
- )
- );
-
- return $comments_match;
- }
-
- // Does the supplied comment match the details of the one most recently stored in self::$last_comment?
- public static function matches_last_comment( $comment ) {
- return self::comments_match( self::$last_comment, $comment );
- }
-
- private static function get_user_agent() {
- return isset( $_SERVER['HTTP_USER_AGENT'] ) ? $_SERVER['HTTP_USER_AGENT'] : null;
- }
-
- private static function get_referer() {
- return isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : null;
- }
-
- // return a comma-separated list of role names for the given user
- public static function 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;
- }
-
- // filter handler used to return a spam result to pre_comment_approved
- public static function last_comment_status( $approved, $comment ) {
- if ( is_null( self::$last_comment_result ) ) {
- // We didn't have reason to store the result of the last check.
- return $approved;
- }
-
- // Only do this if it's the correct comment
- if ( ! self::matches_last_comment( $comment ) ) {
- self::log( "comment_is_spam mismatched comment, returning unaltered $approved" );
- return $approved;
- }
-
- if ( 'trash' === $approved ) {
- // If the last comment we checked has had its approval set to 'trash',
- // then it failed the comment blacklist check. Let that blacklist override
- // the spam check, since users have the (valid) expectation that when
- // they fill out their blacklists, comments that match it will always
- // end up in the trash.
- return $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') + $incr );
-
- return self::$last_comment_result;
- }
-
- /**
- * If Akismet is temporarily unreachable, we don't want to "spam" the blogger with
- * moderation emails for comments that will be automatically cleared or spammed on
- * the next retry.
- *
- * For comments that will be rechecked later, empty the list of email addresses that
- * the moderation email would be sent to.
- *
- * @param array $emails An array of email addresses that the moderation email will be sent to.
- * @param int $comment_id The ID of the relevant comment.
- * @return array An array of email addresses that the moderation email will be sent to.
- */
- public static function disable_moderation_emails_if_unreachable( $emails, $comment_id ) {
- if ( ! empty( self::$prevent_moderation_email_for_these_comments ) && ! empty( $emails ) ) {
- $comment = get_comment( $comment_id );
-
- foreach ( self::$prevent_moderation_email_for_these_comments as $possible_match ) {
- if ( self::comments_match( $possible_match, $comment ) ) {
- update_comment_meta( $comment_id, 'akismet_delayed_moderation_email', true );
- return array();
- }
- }
- }
-
- return $emails;
- }
-
- public static function _cmp_time( $a, $b ) {
- return $a['time'] > $b['time'] ? -1 : 1;
- }
-
- public static function _get_microtime() {
- $mtime = explode( ' ', microtime() );
- return $mtime[1] + $mtime[0];
- }
-
- /**
- * Make a POST request to the Akismet API.
- *
- * @param string $request The body of the request.
- * @param string $path The path for the request.
- * @param string $ip The specific IP address to hit.
- * @return array A two-member array consisting of the headers and the response body, both empty in the case of a failure.
- */
- public static function http_post( $request, $path, $ip=null ) {
-
- $akismet_ua = sprintf( 'WordPress/%s | Akismet/%s', $GLOBALS['wp_version'], constant( 'AKISMET_VERSION' ) );
- $akismet_ua = apply_filters( 'akismet_ua', $akismet_ua );
-
- $content_length = strlen( $request );
-
- $api_key = self::get_api_key();
- $host = self::API_HOST;
-
- if ( !empty( $api_key ) )
- $host = $api_key.'.'.$host;
-
- $http_host = $host;
- // use a specific IP if provided
- // needed by Akismet_Admin::check_server_connectivity()
- if ( $ip && long2ip( ip2long( $ip ) ) ) {
- $http_host = $ip;
- }
-
- $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 = $http_akismet_url = "http://{$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 && ( $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 ( $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' );
- }
-
- $simplified_response = array( $response['headers'], $response['body'] );
-
- self::update_alert( $simplified_response );
-
- return $simplified_response;
- }
-
- // given a response from an API call like check_key_status(), update the alert code options if an alert is present.
- public static function 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' ) ) {
- if ( ! $code ) {
- delete_option( 'akismet_alert_code' );
- delete_option( 'akismet_alert_msg' );
- }
- else {
- update_option( 'akismet_alert_code', $code );
- update_option( 'akismet_alert_msg', $msg );
- }
- }
- }
-
- public static function load_form_js() {
- if ( function_exists( 'is_amp_endpoint' ) && is_amp_endpoint() ) {
- return;
- }
-
- wp_register_script( 'akismet-form', plugin_dir_url( __FILE__ ) . '_inc/form.js', array(), AKISMET_VERSION, true );
- wp_enqueue_script( 'akismet-form' );
- }
-
- /**
- * Mark form.js as async. Because nothing depends on it, it can run at any time
- * after it's loaded, and the browser won't have to wait for it to load to continue
- * parsing the rest of the page.
- */
- public static function set_form_js_async( $tag, $handle, $src ) {
- if ( 'akismet-form' !== $handle ) {
- return $tag;
- }
-
- return preg_replace( '/^<script /i', '<script async="async" ', $tag );
- }
-
- public static function inject_ak_js( $fields ) {
- echo '<p style="display: none;">';
- echo '<input type="hidden" id="ak_js" name="ak_js" value="' . mt_rand( 0, 250 ) . '"/>';
- echo '</p>';
- }
-
- private static function bail_on_activation( $message, $deactivate = true ) {
-?>
-<!doctype html>
-<html>
-<head>
-<meta charset="<?php bloginfo( 'charset' ); ?>" />
-<style>
-* {
- text-align: center;
- margin: 0;
- padding: 0;
- font-family: "Lucida Grande",Verdana,Arial,"Bitstream Vera Sans",sans-serif;
-}
-p {
- margin-top: 1em;
- font-size: 18px;
-}
-</style>
-</head>
-<body>
-<p><?php echo esc_html( $message ); ?></p>
-</body>
-</html>
-<?php
- if ( $deactivate ) {
- $plugins = get_option( 'active_plugins' );
- $akismet = plugin_basename( AKISMET__PLUGIN_DIR . 'akismet.php' );
- $update = false;
- foreach ( $plugins as $i => $plugin ) {
- if ( $plugin === $akismet ) {
- $plugins[$i] = false;
- $update = true;
- }
- }
-
- if ( $update ) {
- update_option( 'active_plugins', array_filter( $plugins ) );
- }
- }
- exit;
- }
-
- public static function view( $name, array $args = array() ) {
- $args = apply_filters( 'akismet_view_arguments', $args, $name );
-
- foreach ( $args AS $key => $val ) {
- $$key = $val;
- }
-
- load_plugin_textdomain( 'akismet' );
-
- $file = AKISMET__PLUGIN_DIR . 'views/'. $name . '.php';
-
- include( $file );
- }
-
- /**
- * Attached to activate_{ plugin_basename( __FILES__ ) } by register_activation_hook()
- * @static
- */
- public static function plugin_activation() {
- if ( version_compare( $GLOBALS['wp_version'], AKISMET__MINIMUM_WP_VERSION, '<' ) ) {
- load_plugin_textdomain( 'akismet' );
-
- $message = '<strong>'.sprintf(esc_html__( 'Akismet %s requires WordPress %s or higher.' , 'akismet'), AKISMET_VERSION, AKISMET__MINIMUM_WP_VERSION ).'</strong> '.sprintf(__('Please <a href="%1$s">upgrade WordPress</a> to a current version, or <a href="%2$s">downgrade to version 2.4 of the Akismet plugin</a>.', 'akismet'), 'https://codex.wordpress.org/Upgrading_WordPress', 'https://wordpress.org/extend/plugins/akismet/download/');
-
- Akismet::bail_on_activation( $message );
- }
- }
-
- /**
- * Removes all connection options
- * @static
- */
- public static function plugin_deactivation( ) {
- self::deactivate_key( self::get_api_key() );
-
- // Remove any scheduled cron jobs.
- $akismet_cron_events = array(
- 'akismet_schedule_cron_recheck',
- 'akismet_scheduled_delete',
- );
-
- foreach ( $akismet_cron_events as $akismet_cron_event ) {
- $timestamp = wp_next_scheduled( $akismet_cron_event );
-
- if ( $timestamp ) {
- wp_unschedule_event( $timestamp, $akismet_cron_event );
- }
- }
- }
-
- /**
- * Essentially a copy of WP's build_query but one that doesn't expect pre-urlencoded values.
- *
- * @param array $args An array of key => value pairs
- * @return string A string ready for use as a URL query string.
- */
- public static function build_query( $args ) {
- return _http_build_query( $args, '', '&' );
- }
-
- /**
- * Log debugging info to the error log.
- *
- * Enabled when WP_DEBUG_LOG is enabled (and WP_DEBUG, since according to
- * core, "WP_DEBUG_DISPLAY and WP_DEBUG_LOG perform no function unless
- * WP_DEBUG is true), 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 ( apply_filters( 'akismet_debug_log', defined( 'WP_DEBUG' ) && WP_DEBUG && defined( 'WP_DEBUG_LOG' ) && WP_DEBUG_LOG && defined( 'AKISMET_DEBUG' ) && AKISMET_DEBUG ) ) {
- 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 pingbacks aren't open on this post, we'll still check whether this request is part of a potential DDOS,
- // but indicate to the server that pingbacks are indeed closed so we don't include this request in the user's stats,
- // since the user has already done their part by disabling pingbacks.
- $pingbacks_closed = false;
-
- $post = get_post( $post_id );
-
- if ( ! $post || ! pings_open( $post ) ) {
- $pingbacks_closed = true;
- }
-
- $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],
- 'pingbacks_closed' => $pingbacks_closed ? '1' : '0',
- );
-
- $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' ) );
- }
- }
- }
-
- /**
- * Ensure that we are loading expected scalar values from akismet_as_submitted commentmeta.
- *
- * @param mixed $meta_value
- * @return mixed
- */
- private static function sanitize_comment_as_submitted( $meta_value ) {
- if ( empty( $meta_value ) ) {
- return $meta_value;
- }
-
- $meta_value = (array) $meta_value;
-
- foreach ( $meta_value as $key => $value ) {
- if ( ! isset( self::$comment_as_submitted_allowed_keys[$key] ) || ! is_scalar( $value ) ) {
- unset( $meta_value[$key] );
- }
- }
-
- return $meta_value;
- }
-
- public static function predefined_api_key() {
- if ( defined( 'WPCOM_API_KEY' ) ) {
- return true;
- }
-
- return apply_filters( 'akismet_predefined_api_key', false );
- }
-
- /**
- * Controls the display of a privacy related notice underneath the comment form using the `akismet_comment_form_privacy_notice` option and filter respectively.
- * Default is top not display the notice, leaving the choice to site admins, or integrators.
- */
- public static function display_comment_form_privacy_notice() {
- if ( 'display' !== apply_filters( 'akismet_comment_form_privacy_notice', get_option( 'akismet_comment_form_privacy_notice', 'hide' ) ) ) {
- return;
- }
- echo apply_filters(
- 'akismet_comment_form_privacy_notice_markup',
- '<p class="akismet_comment_form_privacy_notice">' . sprintf(
- __( 'This site uses Akismet to reduce spam. <a href="%s" target="_blank" rel="nofollow noopener">Learn how your comment data is processed</a>.', 'akismet' ),
- 'https://akismet.com/privacy/'
- ) . '</p>'
- );
- }
-}