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1875 lines
70 KiB
1875 lines
70 KiB
<?php
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class Akismet {
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const API_HOST = 'rest.akismet.com';
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const API_PORT = 80;
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const MAX_DELAY_BEFORE_MODERATION_EMAIL = 86400; // One day in seconds
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public static $limit_notices = array(
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10501 => 'FIRST_MONTH_OVER_LIMIT',
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10502 => 'SECOND_MONTH_OVER_LIMIT',
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10504 => 'THIRD_MONTH_APPROACHING_LIMIT',
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10508 => 'THIRD_MONTH_OVER_LIMIT',
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10516 => 'FOUR_PLUS_MONTHS_OVER_LIMIT',
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);
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private static $last_comment = '';
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private static $initiated = false;
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private static $prevent_moderation_email_for_these_comments = array();
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private static $last_comment_result = null;
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private static $comment_as_submitted_allowed_keys = array( 'blog' => '', 'blog_charset' => '', 'blog_lang' => '', 'blog_ua' => '', 'comment_agent' => '', 'comment_author' => '', 'comment_author_IP' => '', 'comment_author_email' => '', 'comment_author_url' => '', 'comment_content' => '', 'comment_date_gmt' => '', 'comment_tags' => '', 'comment_type' => '', 'guid' => '', 'is_test' => '', 'permalink' => '', 'reporter' => '', 'site_domain' => '', 'submit_referer' => '', 'submit_uri' => '', 'user_ID' => '', 'user_agent' => '', 'user_id' => '', 'user_ip' => '' );
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public static function init() {
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if ( ! self::$initiated ) {
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self::init_hooks();
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}
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}
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/**
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* Initializes WordPress hooks
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*/
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private static function init_hooks() {
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self::$initiated = true;
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add_action( 'wp_insert_comment', array( 'Akismet', 'auto_check_update_meta' ), 10, 2 );
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add_filter( 'preprocess_comment', array( 'Akismet', 'auto_check_comment' ), 1 );
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add_filter( 'rest_pre_insert_comment', array( 'Akismet', 'rest_auto_check_comment' ), 1 );
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add_action( 'comment_form', array( 'Akismet', 'load_form_js' ) );
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add_action( 'do_shortcode_tag', array( 'Akismet', 'load_form_js_via_filter' ), 10, 4 );
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add_action( 'akismet_scheduled_delete', array( 'Akismet', 'delete_old_comments' ) );
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add_action( 'akismet_scheduled_delete', array( 'Akismet', 'delete_old_comments_meta' ) );
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add_action( 'akismet_scheduled_delete', array( 'Akismet', 'delete_orphaned_commentmeta' ) );
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add_action( 'akismet_schedule_cron_recheck', array( 'Akismet', 'cron_recheck' ) );
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add_action( 'comment_form', array( 'Akismet', 'add_comment_nonce' ), 1 );
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add_action( 'comment_form', array( 'Akismet', 'output_custom_form_fields' ) );
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add_filter( 'script_loader_tag', array( 'Akismet', 'set_form_js_async' ), 10, 3 );
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add_filter( 'comment_moderation_recipients', array( 'Akismet', 'disable_moderation_emails_if_unreachable' ), 1000, 2 );
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add_filter( 'pre_comment_approved', array( 'Akismet', 'last_comment_status' ), 10, 2 );
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add_action( 'transition_comment_status', array( 'Akismet', 'transition_comment_status' ), 10, 3 );
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// Run this early in the pingback call, before doing a remote fetch of the source uri
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add_action( 'xmlrpc_call', array( 'Akismet', 'pre_check_pingback' ) );
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// Jetpack compatibility
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add_filter( 'jetpack_options_whitelist', array( 'Akismet', 'add_to_jetpack_options_whitelist' ) );
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add_filter( 'jetpack_contact_form_html', array( 'Akismet', 'inject_custom_form_fields' ) );
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add_filter( 'jetpack_contact_form_akismet_values', array( 'Akismet', 'prepare_custom_form_values' ) );
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// Gravity Forms
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add_filter( 'gform_get_form_filter', array( 'Akismet', 'inject_custom_form_fields' ) );
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add_filter( 'gform_akismet_fields', array( 'Akismet', 'prepare_custom_form_values' ) );
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// Contact Form 7
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add_filter( 'wpcf7_form_elements', array( 'Akismet', 'append_custom_form_fields' ) );
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add_filter( 'wpcf7_akismet_parameters', array( 'Akismet', 'prepare_custom_form_values' ) );
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// Formidable Forms
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add_filter( 'frm_filter_final_form', array( 'Akismet', 'inject_custom_form_fields' ) );
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add_filter( 'frm_akismet_values', array( 'Akismet', 'prepare_custom_form_values' ) );
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// Fluent Forms
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/*
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* The Fluent Forms hook names were updated in version 5.0.0. The last version that supported
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* the original hook names was 4.3.25, and version 4.3.25 was tested up to WordPress version 6.1.
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*
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* The legacy hooks are fired before the new hooks. See
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* https://github.com/fluentform/fluentform/commit/cc45341afcae400f217470a7bbfb15efdd80454f
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*
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* The legacy Fluent Forms hooks will be removed when Akismet no longer supports WordPress version 6.1.
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* This will provide compatibility with previous versions of Fluent Forms for a reasonable amount of time.
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*/
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add_filter( 'fluentform_form_element_start', array( 'Akismet', 'output_custom_form_fields' ) );
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add_filter( 'fluentform_akismet_fields', array( 'Akismet', 'prepare_custom_form_values' ), 10, 2 );
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// Current Fluent Form hooks.
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add_filter( 'fluentform/form_element_start', array( 'Akismet', 'output_custom_form_fields' ) );
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add_filter( 'fluentform/akismet_fields', array( 'Akismet', 'prepare_custom_form_values' ), 10, 2 );
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add_action( 'update_option_wordpress_api_key', array( 'Akismet', 'updated_option' ), 10, 2 );
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add_action( 'add_option_wordpress_api_key', array( 'Akismet', 'added_option' ), 10, 2 );
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add_action( 'comment_form_after', array( 'Akismet', 'display_comment_form_privacy_notice' ) );
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}
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public static function get_api_key() {
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return apply_filters( 'akismet_get_api_key', defined('WPCOM_API_KEY') ? constant('WPCOM_API_KEY') : get_option('wordpress_api_key') );
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}
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/**
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* Exchange the API key for a token that can only be used to access stats pages.
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*
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* @return string
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*/
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public static function get_access_token() {
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static $access_token = null;
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if ( is_null( $access_token ) ) {
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$request_args = array( 'api_key' => self::get_api_key() );
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$request_args = apply_filters( 'akismet_request_args', $request_args, 'token' );
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$response = self::http_post( self::build_query( $request_args ), 'token' );
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$access_token = $response[1];
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}
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return $access_token;
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}
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public static function check_key_status( $key, $ip = null ) {
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$request_args = array(
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'key' => $key,
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'blog' => get_option( 'home' ),
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);
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$request_args = apply_filters( 'akismet_request_args', $request_args, 'verify-key' );
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return self::http_post( self::build_query( $request_args ), 'verify-key', $ip );
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}
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public static function verify_key( $key, $ip = null ) {
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// Shortcut for obviously invalid keys.
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if ( strlen( $key ) != 12 ) {
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return 'invalid';
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}
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$response = self::check_key_status( $key, $ip );
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if ( $response[1] != 'valid' && $response[1] != 'invalid' )
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return 'failed';
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return $response[1];
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}
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public static function deactivate_key( $key ) {
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$request_args = array(
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'key' => $key,
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'blog' => get_option( 'home' ),
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);
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$request_args = apply_filters( 'akismet_request_args', $request_args, 'deactivate' );
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$response = self::http_post( self::build_query( $request_args ), 'deactivate' );
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if ( $response[1] != 'deactivated' )
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return 'failed';
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return $response[1];
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}
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/**
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* Add the akismet option to the Jetpack options management whitelist.
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*
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* @param array $options The list of whitelisted option names.
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* @return array The updated whitelist
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*/
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public static function add_to_jetpack_options_whitelist( $options ) {
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$options[] = 'wordpress_api_key';
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return $options;
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}
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/**
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* When the akismet option is updated, run the registration call.
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*
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* This should only be run when the option is updated from the Jetpack/WP.com
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* API call, and only if the new key is different than the old key.
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*
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* @param mixed $old_value The old option value.
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* @param mixed $value The new option value.
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*/
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public static function updated_option( $old_value, $value ) {
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// Not an API call
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if ( ! class_exists( 'WPCOM_JSON_API_Update_Option_Endpoint' ) ) {
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return;
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}
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// Only run the registration if the old key is different.
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if ( $old_value !== $value ) {
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self::verify_key( $value );
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}
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}
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/**
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* Treat the creation of an API key the same as updating the API key to a new value.
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*
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* @param mixed $option_name Will always be "wordpress_api_key", until something else hooks in here.
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* @param mixed $value The option value.
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*/
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public static function added_option( $option_name, $value ) {
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if ( 'wordpress_api_key' === $option_name ) {
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return self::updated_option( '', $value );
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}
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}
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public static function rest_auto_check_comment( $commentdata ) {
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return self::auto_check_comment( $commentdata, 'rest_api' );
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}
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/**
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* Check a comment for spam.
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*
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* @param array $commentdata
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* @param string $context What kind of request triggered this comment check? Possible values are 'default', 'rest_api', and 'xml-rpc'.
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* @return array|WP_Error Either the $commentdata array with additional entries related to its spam status
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* or a WP_Error, if it's a REST API request and the comment should be discarded.
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*/
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public static function auto_check_comment( $commentdata, $context = 'default' ) {
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// If no key is configured, then there's no point in doing any of this.
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if ( ! self::get_api_key() ) {
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return $commentdata;
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}
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self::$last_comment_result = null;
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$comment = $commentdata;
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$comment['user_ip'] = self::get_ip_address();
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$comment['user_agent'] = self::get_user_agent();
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$comment['referrer'] = self::get_referer();
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$comment['blog'] = get_option( 'home' );
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$comment['blog_lang'] = get_locale();
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$comment['blog_charset'] = get_option('blog_charset');
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$comment['permalink'] = get_permalink( $comment['comment_post_ID'] );
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if ( ! empty( $comment['user_ID'] ) ) {
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$comment['user_role'] = Akismet::get_user_roles( $comment['user_ID'] );
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}
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/** See filter documentation in init_hooks(). */
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$akismet_nonce_option = apply_filters( 'akismet_comment_nonce', get_option( 'akismet_comment_nonce' ) );
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$comment['akismet_comment_nonce'] = 'inactive';
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if ( $akismet_nonce_option == 'true' || $akismet_nonce_option == '' ) {
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$comment['akismet_comment_nonce'] = 'failed';
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if ( isset( $_POST['akismet_comment_nonce'] ) && wp_verify_nonce( $_POST['akismet_comment_nonce'], 'akismet_comment_nonce_' . $comment['comment_post_ID'] ) )
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$comment['akismet_comment_nonce'] = 'passed';
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// comment reply in wp-admin
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if ( isset( $_POST['_ajax_nonce-replyto-comment'] ) && check_ajax_referer( 'replyto-comment', '_ajax_nonce-replyto-comment' ) )
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$comment['akismet_comment_nonce'] = 'passed';
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}
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if ( self::is_test_mode() )
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$comment['is_test'] = 'true';
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foreach( $_POST as $key => $value ) {
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if ( is_string( $value ) )
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$comment["POST_{$key}"] = $value;
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}
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foreach ( $_SERVER as $key => $value ) {
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if ( ! is_string( $value ) ) {
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continue;
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}
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if ( preg_match( "/^HTTP_COOKIE/", $key ) ) {
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continue;
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}
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// Send any potentially useful $_SERVER vars, but avoid sending junk we don't need.
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if ( preg_match( "/^(HTTP_|REMOTE_ADDR|REQUEST_URI|DOCUMENT_URI)/", $key ) ) {
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$comment[ "$key" ] = $value;
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}
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}
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$post = get_post( $comment['comment_post_ID'] );
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if ( ! is_null( $post ) ) {
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// $post can technically be null, although in the past, it's always been an indicator of another plugin interfering.
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$comment[ 'comment_post_modified_gmt' ] = $post->post_modified_gmt;
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// Tags and categories are important context in which to consider the comment.
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$comment['comment_context'] = array();
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$tag_names = wp_get_post_tags( $post->ID, array( 'fields' => 'names' ) );
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if ( $tag_names && ! is_wp_error( $tag_names ) ) {
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foreach ( $tag_names as $tag_name ) {
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$comment['comment_context'][] = $tag_name;
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}
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}
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$category_names = wp_get_post_categories( $post->ID, array( 'fields' => 'names' ) );
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if ( $category_names && ! is_wp_error( $category_names ) ) {
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foreach ( $category_names as $category_name ) {
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$comment['comment_context'][] = $category_name;
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}
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}
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}
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/**
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* Filter the data that is used to generate the request body for the API call.
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*
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* @since 5.3.1
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*
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* @param array $comment An array of request data.
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* @param string $endpoint The API endpoint being requested.
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*/
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$comment = apply_filters( 'akismet_request_args', $comment, 'comment-check' );
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$response = self::http_post( self::build_query( $comment ), 'comment-check' );
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do_action( 'akismet_comment_check_response', $response );
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$commentdata['comment_as_submitted'] = array_intersect_key( $comment, self::$comment_as_submitted_allowed_keys );
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// Also include any form fields we inject into the comment form, like ak_js
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foreach ( $_POST as $key => $value ) {
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if ( is_string( $value ) && strpos( $key, 'ak_' ) === 0 ) {
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$commentdata['comment_as_submitted'][ 'POST_' . $key ] = $value;
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}
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}
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$commentdata['akismet_result'] = $response[1];
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if ( isset( $response[0]['x-akismet-pro-tip'] ) )
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$commentdata['akismet_pro_tip'] = $response[0]['x-akismet-pro-tip'];
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if ( isset( $response[0]['x-akismet-guid'] ) ) {
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$commentdata['akismet_guid'] = $response[0]['x-akismet-guid'];
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}
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if ( isset( $response[0]['x-akismet-error'] ) ) {
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// An error occurred that we anticipated (like a suspended key) and want the user to act on.
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// Send to moderation.
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self::$last_comment_result = '0';
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}
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else if ( 'true' == $response[1] ) {
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// akismet_spam_count will be incremented later by comment_is_spam()
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self::$last_comment_result = 'spam';
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$discard = ( isset( $commentdata['akismet_pro_tip'] ) && $commentdata['akismet_pro_tip'] === 'discard' && self::allow_discard() );
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do_action( 'akismet_spam_caught', $discard );
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if ( $discard ) {
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// The spam is obvious, so we're bailing out early.
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// akismet_result_spam() won't be called so bump the counter here
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if ( $incr = apply_filters( 'akismet_spam_count_incr', 1 ) ) {
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update_option( 'akismet_spam_count', get_option( 'akismet_spam_count' ) + $incr );
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}
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if ( 'rest_api' === $context ) {
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return new WP_Error( 'akismet_rest_comment_discarded', __( 'Comment discarded.', 'akismet' ) );
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} else if ( 'xml-rpc' === $context ) {
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// If this is a pingback that we're pre-checking, the discard behavior is the same as the normal spam response behavior.
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return $commentdata;
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} else {
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// Redirect back to the previous page, or failing that, the post permalink, or failing that, the homepage of the blog.
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$redirect_to = isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : ( $post ? get_permalink( $post ) : home_url() );
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wp_safe_redirect( esc_url_raw( $redirect_to ) );
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die();
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}
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}
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else if ( 'rest_api' === $context ) {
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// The way the REST API structures its calls, we can set the comment_approved value right away.
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$commentdata['comment_approved'] = 'spam';
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}
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}
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// if the response is neither true nor false, hold the comment for moderation and schedule a recheck
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if ( 'true' != $response[1] && 'false' != $response[1] ) {
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if ( !current_user_can('moderate_comments') ) {
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// Comment status should be moderated
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self::$last_comment_result = '0';
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}
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if ( ! wp_next_scheduled( 'akismet_schedule_cron_recheck' ) ) {
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wp_schedule_single_event( time() + 1200, 'akismet_schedule_cron_recheck' );
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do_action( 'akismet_scheduled_recheck', 'invalid-response-' . $response[1] );
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}
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self::$prevent_moderation_email_for_these_comments[] = $commentdata;
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}
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// Delete old comments daily
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if ( ! wp_next_scheduled( 'akismet_scheduled_delete' ) ) {
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wp_schedule_event( time(), 'daily', 'akismet_scheduled_delete' );
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}
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self::set_last_comment( $commentdata );
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self::fix_scheduled_recheck();
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return $commentdata;
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}
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public static function get_last_comment() {
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return self::$last_comment;
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}
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public static function set_last_comment( $comment ) {
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if ( is_null( $comment ) ) {
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self::$last_comment = null;
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}
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else {
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// We filter it here so that it matches the filtered comment data that we'll have to compare against later.
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// wp_filter_comment expects comment_author_IP
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self::$last_comment = wp_filter_comment(
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array_merge(
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array( 'comment_author_IP' => self::get_ip_address() ),
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$comment
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)
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);
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}
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}
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// this fires on wp_insert_comment. we can't update comment_meta when auto_check_comment() runs
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// because we don't know the comment ID at that point.
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public static function auto_check_update_meta( $id, $comment ) {
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// wp_insert_comment() might be called in other contexts, so make sure this is the same comment
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// 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 ( function_exists( 'wp_check_comment_disallowed_list' ) ) {
|
|
if ( wp_check_comment_disallowed_list( $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-disallowed' );
|
|
} else {
|
|
self::update_comment_history( $comment->comment_ID, '', 'status-changed-' . $comment->comment_approved );
|
|
}
|
|
} else if ( function_exists( 'wp_blacklist_check' ) && 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 );
|
|
}
|
|
}
|
|
} else {
|
|
// abnormal result: error
|
|
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'] );
|
|
}
|
|
|
|
if ( isset( self::$last_comment['akismet_guid'] ) ) {
|
|
update_comment_meta( $comment->comment_ID, 'akismet_guid', self::$last_comment['akismet_guid'] );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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();
|
|
|
|
$comments = array();
|
|
|
|
foreach ( $comment_ids as $comment_id ) {
|
|
$comments[ $comment_id ] = get_comment( $comment_id );
|
|
|
|
do_action( 'delete_comment', $comment_id, $comments[ $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, is_countable( $comment_ids ) ? count( $comment_ids ) : 0, '%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 ) );
|
|
|
|
foreach ( $comment_ids as $comment_id ) {
|
|
do_action( 'deleted_comment', $comment_id, $comments[ $comment_id ] );
|
|
unset( $comments[ $comment_id ] );
|
|
}
|
|
|
|
clean_comment_cache( $comment_ids );
|
|
do_action( 'akismet_delete_comment_batch', is_countable( $comment_ids ) ? count( $comment_ids ) : 0 );
|
|
}
|
|
|
|
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', is_countable( $comment_ids ) ? count( $comment_ids ) : 0 );
|
|
}
|
|
|
|
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;
|
|
|
|
/**
|
|
* Which comment types should be ignored when counting a user's approved comments?
|
|
*
|
|
* Some plugins add entries to the comments table that are not actual
|
|
* comments that could have been checked by Akismet. Allow these comments
|
|
* to be excluded from the "approved comment count" query in order to
|
|
* avoid artificially inflating the approved comment count.
|
|
*
|
|
* @param array $comment_types An array of comment types that won't be considered
|
|
* when counting a user's approved comments.
|
|
*
|
|
* @since 4.2.2
|
|
*/
|
|
$excluded_comment_types = apply_filters( 'akismet_excluded_comment_types', array() );
|
|
|
|
$comment_type_where = '';
|
|
|
|
if ( is_array( $excluded_comment_types ) && ! empty( $excluded_comment_types ) ) {
|
|
$excluded_comment_types = array_unique( $excluded_comment_types );
|
|
|
|
foreach ( $excluded_comment_types as $excluded_comment_type ) {
|
|
$comment_type_where .= $wpdb->prepare( ' AND comment_type <> %s ', $excluded_comment_type );
|
|
}
|
|
}
|
|
|
|
if ( ! empty( $user_id ) ) {
|
|
return (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM {$wpdb->comments} WHERE user_id = %d AND comment_approved = 1" . $comment_type_where, $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_type_where, $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 );
|
|
if ( empty( $history ) || empty( $history[ 0 ] ) ) {
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
// To see all variants when testing.
|
|
$history[] = array( 'time' => 445856401, 'message' => 'Old versions of Akismet stored the message as a literal string in the commentmeta.', 'event' => null );
|
|
$history[] = array( 'time' => 445856402, 'event' => 'recheck-spam' );
|
|
$history[] = array( 'time' => 445856403, 'event' => 'check-spam' );
|
|
$history[] = array( 'time' => 445856404, 'event' => 'recheck-ham' );
|
|
$history[] = array( 'time' => 445856405, 'event' => 'check-ham' );
|
|
$history[] = array( 'time' => 445856406, 'event' => 'wp-blacklisted' );
|
|
$history[] = array( 'time' => 445856406, 'event' => 'wp-disallowed' );
|
|
$history[] = array( 'time' => 445856407, 'event' => 'report-spam' );
|
|
$history[] = array( 'time' => 445856408, 'event' => 'report-spam', 'user' => 'sam' );
|
|
$history[] = array( 'message' => 'sam reported this comment as spam (hardcoded message).', 'time' => 445856400, 'event' => 'report-spam', 'user' => 'sam' );
|
|
$history[] = array( 'time' => 445856409, 'event' => 'report-ham', 'user' => 'sam' );
|
|
$history[] = array( 'message' => 'sam reported this comment as ham (hardcoded message).', 'time' => 445856400, 'event' => 'report-ham', 'user' => 'sam' ); //
|
|
$history[] = array( 'time' => 445856410, 'event' => 'cron-retry-spam' );
|
|
$history[] = array( 'time' => 445856411, 'event' => 'cron-retry-ham' );
|
|
$history[] = array( 'time' => 445856412, 'event' => 'check-error' ); //
|
|
$history[] = array( 'time' => 445856413, 'event' => 'check-error', 'meta' => array( 'response' => 'The server was taking a nap.' ) );
|
|
$history[] = array( 'time' => 445856414, 'event' => 'recheck-error' ); // Should not generate a message.
|
|
$history[] = array( 'time' => 445856415, 'event' => 'recheck-error', 'meta' => array( 'response' => 'The server was taking a nap.' ) );
|
|
$history[] = array( 'time' => 445856416, 'event' => 'status-changedtrash' );
|
|
$history[] = array( 'time' => 445856417, 'event' => 'status-changedspam' );
|
|
$history[] = array( 'time' => 445856418, 'event' => 'status-changedhold' );
|
|
$history[] = array( 'time' => 445856419, 'event' => 'status-changedapprove' );
|
|
$history[] = array( 'time' => 445856420, 'event' => 'status-changed-trash' );
|
|
$history[] = array( 'time' => 445856421, 'event' => 'status-changed-spam' );
|
|
$history[] = array( 'time' => 445856422, 'event' => 'status-changed-hold' );
|
|
$history[] = array( 'time' => 445856423, 'event' => 'status-changed-approve' );
|
|
$history[] = array( 'time' => 445856424, 'event' => 'status-trash', 'user' => 'sam' );
|
|
$history[] = array( 'time' => 445856425, 'event' => 'status-spam', 'user' => 'sam' );
|
|
$history[] = array( 'time' => 445856426, 'event' => 'status-hold', 'user' => 'sam' );
|
|
$history[] = array( 'time' => 445856427, 'event' => 'status-approve', 'user' => 'sam' );
|
|
*/
|
|
|
|
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;
|
|
|
|
if ( ! self::get_api_key() ) {
|
|
return new WP_Error( 'akismet-not-configured', __( 'Akismet is not configured. Please enter an API key.', 'akismet' ) );
|
|
}
|
|
|
|
$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';
|
|
|
|
$c = apply_filters( 'akismet_request_args', $c, 'comment-check' );
|
|
|
|
$response = self::http_post( self::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 );
|
|
|
|
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 ) )
|
|
);
|
|
}
|
|
|
|
delete_comment_meta( $id, 'akismet_rechecking' );
|
|
|
|
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;
|
|
|
|
self::update_comment_history( $comment_id, '', 'report-spam' );
|
|
|
|
// If the user hasn't configured Akismet, there's nothing else to do at this point.
|
|
if ( ! self::get_api_key() ) {
|
|
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;
|
|
}
|
|
|
|
$comment = apply_filters( 'akismet_request_args', $comment, 'submit-spam' );
|
|
|
|
$response = self::http_post( self::build_query( $comment ), 'submit-spam' );
|
|
|
|
update_comment_meta( $comment_id, 'akismet_user_result', 'true' );
|
|
|
|
if ( $comment->reporter ) {
|
|
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;
|
|
|
|
self::update_comment_history( $comment_id, '', 'report-ham' );
|
|
|
|
// If the user hasn't configured Akismet, there's nothing else to do at this point.
|
|
if ( ! self::get_api_key() ) {
|
|
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;
|
|
}
|
|
|
|
$comment = apply_filters( 'akismet_request_args', $comment, 'submit-ham' );
|
|
|
|
$response = self::http_post( self::build_query( $comment ), 'submit-ham' );
|
|
|
|
update_comment_meta( $comment_id, 'akismet_user_result', 'false' );
|
|
|
|
if ( $comment->reporter ) {
|
|
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.
|
|
*/
|
|
|
|
if ( ! self::get_api_key() ) {
|
|
return;
|
|
}
|
|
|
|
$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 ) {
|
|
$comment_user = null;
|
|
$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 = implode( ',', $comment_user->roles );
|
|
}
|
|
|
|
if ( is_multisite() && is_super_admin( $user_id ) ) {
|
|
if ( empty( $roles ) ) {
|
|
$roles = 'super_admin';
|
|
} else {
|
|
$comment_user->roles[] = 'super_admin';
|
|
$roles = implode( ',', $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 );
|
|
|
|
if ( $comment ) {
|
|
foreach ( self::$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 );
|
|
|
|
$host = self::API_HOST;
|
|
$api_key = self::get_api_key();
|
|
|
|
if ( $api_key ) {
|
|
$request = add_query_arg( 'api_key', $api_key, $request );
|
|
}
|
|
|
|
$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 ) {
|
|
$alert_option_prefix = 'akismet_alert_';
|
|
$alert_header_prefix = 'x-akismet-alert-';
|
|
$alert_header_names = array(
|
|
'code',
|
|
'msg',
|
|
'api-calls',
|
|
'usage-limit',
|
|
'upgrade-plan',
|
|
'upgrade-url',
|
|
'upgrade-type',
|
|
);
|
|
|
|
foreach ( $alert_header_names as $alert_header_name ) {
|
|
$value = null;
|
|
if ( isset( $response[0][ $alert_header_prefix . $alert_header_name ] ) ) {
|
|
$value = $response[0][ $alert_header_prefix . $alert_header_name ];
|
|
}
|
|
|
|
$option_name = $alert_option_prefix . str_replace( '-', '_', $alert_header_name );
|
|
if ( $value != get_option( $option_name ) ) {
|
|
if ( ! $value ) {
|
|
delete_option( $option_name );
|
|
} else {
|
|
update_option( $option_name, $value );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Mark akismet-frontend.js as deferred. 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-frontend' !== $handle ) {
|
|
return $tag;
|
|
}
|
|
|
|
return preg_replace( '/^<script /i', '<script defer ', $tag );
|
|
}
|
|
|
|
public static function get_akismet_form_fields() {
|
|
$fields = '';
|
|
|
|
$prefix = 'ak_';
|
|
|
|
// Contact Form 7 uses _wpcf7 as a prefix to know which fields to exclude from comment_content.
|
|
if ( 'wpcf7_form_elements' === current_filter() ) {
|
|
$prefix = '_wpcf7_ak_';
|
|
}
|
|
|
|
$fields .= '<p style="display: none !important;" class="akismet-fields-container" data-prefix="' . esc_attr( $prefix ) . '">';
|
|
$fields .= '<label>Δ<textarea name="' . $prefix . 'hp_textarea" cols="45" rows="8" maxlength="100"></textarea></label>';
|
|
|
|
if ( ! function_exists( 'amp_is_request' ) || ! amp_is_request() ) {
|
|
// Keep track of how many ak_js fields are in this page so that we don't re-use
|
|
// the same ID.
|
|
static $field_count = 0;
|
|
|
|
$field_count++;
|
|
|
|
$fields .= '<input type="hidden" id="ak_js_' . $field_count . '" name="' . $prefix . 'js" value="' . mt_rand( 0, 250 ) . '"/>';
|
|
$fields .= '<script>document.getElementById( "ak_js_' . $field_count . '" ).setAttribute( "value", ( new Date() ).getTime() );</script>';
|
|
}
|
|
|
|
$fields .= '</p>';
|
|
|
|
return $fields;
|
|
}
|
|
|
|
public static function output_custom_form_fields( $post_id ) {
|
|
if ( 'fluentform/form_element_start' === current_filter() && did_action( 'fluentform_form_element_start' ) ) {
|
|
// Already did this via the legacy filter.
|
|
return;
|
|
}
|
|
|
|
// phpcs:ignore WordPress.Security.EscapeOutput
|
|
echo self::get_akismet_form_fields();
|
|
}
|
|
|
|
public static function inject_custom_form_fields( $html ) {
|
|
$html = str_replace( '</form>', self::get_akismet_form_fields() . '</form>', $html );
|
|
|
|
return $html;
|
|
}
|
|
|
|
public static function append_custom_form_fields( $html ) {
|
|
$html .= self::get_akismet_form_fields();
|
|
|
|
return $html;
|
|
}
|
|
|
|
/**
|
|
* Ensure that any Akismet-added form fields are included in the comment-check call.
|
|
*
|
|
* @param array $form
|
|
* @param array $data Some plugins will supply the POST data via the filter, since they don't
|
|
* read it directly from $_POST.
|
|
* @return array $form
|
|
*/
|
|
public static function prepare_custom_form_values( $form, $data = null ) {
|
|
if ( 'fluentform/akismet_fields' === current_filter() && did_filter( 'fluentform_akismet_fields' ) ) {
|
|
// Already updated the form fields via the legacy filter.
|
|
return $form;
|
|
}
|
|
|
|
if ( is_null( $data ) ) {
|
|
// phpcs:ignore WordPress.Security.NonceVerification.Missing
|
|
$data = $_POST;
|
|
}
|
|
|
|
$prefix = 'ak_';
|
|
|
|
// Contact Form 7 uses _wpcf7 as a prefix to know which fields to exclude from comment_content.
|
|
if ( 'wpcf7_akismet_parameters' === current_filter() ) {
|
|
$prefix = '_wpcf7_ak_';
|
|
}
|
|
|
|
foreach ( $data as $key => $val ) {
|
|
if ( 0 === strpos( $key, $prefix ) ) {
|
|
$form[ 'POST_ak_' . substr( $key, strlen( $prefix ) ) ] = $val;
|
|
}
|
|
}
|
|
|
|
return $form;
|
|
}
|
|
|
|
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 );
|
|
} elseif ( ! empty( $_SERVER['SCRIPT_NAME'] ) && false !== strpos( $_SERVER['SCRIPT_NAME'], '/wp-admin/plugins.php' ) ) {
|
|
add_option( 'Activated_Akismet', true );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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 ) {
|
|
$pingback_args = array();
|
|
if ( $method !== 'pingback.ping' )
|
|
return;
|
|
|
|
// A lot of this code is tightly coupled with the IXR class because the xmlrpc_call action doesn't pass along any information besides the method name.
|
|
// This ticket should hopefully fix that: https://core.trac.wordpress.org/ticket/52524
|
|
// Until that happens, when it's a system.multicall, pre_check_pingback will be called once for every internal pingback call.
|
|
// Keep track of how many times this function has been called so we know which call to reference in the XML.
|
|
static $call_count = 0;
|
|
|
|
$call_count++;
|
|
|
|
global $wp_xmlrpc_server;
|
|
|
|
if ( !is_object( $wp_xmlrpc_server ) )
|
|
return false;
|
|
|
|
$is_multicall = false;
|
|
$multicall_count = 0;
|
|
|
|
if ( 'system.multicall' === $wp_xmlrpc_server->message->methodName ) {
|
|
$is_multicall = true;
|
|
|
|
if ( 0 === $call_count ) {
|
|
// Only pass along the number of entries in the multicall the first time we see it.
|
|
$multicall_count = is_countable( $wp_xmlrpc_server->message->params ) ? count( $wp_xmlrpc_server->message->params ) : 0;
|
|
}
|
|
|
|
/*
|
|
* $wp_xmlrpc_server->message looks like this:
|
|
*
|
|
(
|
|
[message] =>
|
|
[messageType] => methodCall
|
|
[faultCode] =>
|
|
[faultString] =>
|
|
[methodName] => system.multicall
|
|
[params] => Array
|
|
(
|
|
[0] => Array
|
|
(
|
|
[methodName] => pingback.ping
|
|
[params] => Array
|
|
(
|
|
[0] => http://www.example.net/?p=1 // Site that created the pingback.
|
|
[1] => https://www.example.com/?p=1 // Post being pingback'd on this site.
|
|
)
|
|
)
|
|
[1] => Array
|
|
(
|
|
[methodName] => pingback.ping
|
|
[params] => Array
|
|
(
|
|
[0] => http://www.example.net/?p=1 // Site that created the pingback.
|
|
[1] => https://www.example.com/?p=2 // Post being pingback'd on this site.
|
|
)
|
|
)
|
|
)
|
|
)
|
|
*/
|
|
|
|
// Use the params from the nth pingback.ping call in the multicall.
|
|
$pingback_calls_found = 0;
|
|
|
|
foreach ( $wp_xmlrpc_server->message->params as $xmlrpc_action ) {
|
|
if ( 'pingback.ping' === $xmlrpc_action['methodName'] ) {
|
|
$pingback_calls_found++;
|
|
}
|
|
|
|
if ( $call_count === $pingback_calls_found ) {
|
|
$pingback_args = $xmlrpc_action['params'];
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
/*
|
|
* $wp_xmlrpc_server->message looks like this:
|
|
*
|
|
(
|
|
[message] =>
|
|
[messageType] => methodCall
|
|
[faultCode] =>
|
|
[faultString] =>
|
|
[methodName] => pingback.ping
|
|
[params] => Array
|
|
(
|
|
[0] => http://www.example.net/?p=1 // Site that created the pingback.
|
|
[1] => https://www.example.com/?p=2 // Post being pingback'd on this site.
|
|
)
|
|
)
|
|
*/
|
|
$pingback_args = $wp_xmlrpc_server->message->params;
|
|
}
|
|
|
|
if ( ! empty( $pingback_args[1] ) ) {
|
|
$post_id = url_to_postid( $pingback_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;
|
|
}
|
|
|
|
// Note: If is_multicall is true and multicall_count=0, then we know this is at least the 2nd pingback we've processed in this multicall.
|
|
|
|
$comment = array(
|
|
'comment_author_url' => $pingback_args[0],
|
|
'comment_post_ID' => $post_id,
|
|
'comment_author' => '',
|
|
'comment_author_email' => '',
|
|
'comment_content' => '',
|
|
'comment_type' => 'pingback',
|
|
'akismet_pre_check' => '1',
|
|
'comment_pingback_target' => $pingback_args[1],
|
|
'pingbacks_closed' => $pingbacks_closed ? '1' : '0',
|
|
'is_multicall' => $is_multicall,
|
|
'multicall_count' => $multicall_count,
|
|
);
|
|
|
|
$comment = self::auto_check_comment( $comment, 'xml-rpc' );
|
|
|
|
if ( isset( $comment['akismet_result'] ) && 'true' == $comment['akismet_result'] ) {
|
|
// Sad: 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' ) );
|
|
|
|
// Also note that if this was part of a multicall, a spam result will prevent the subsequent calls from being executed.
|
|
// This is probably fine, but it raises the bar for what should be acceptable as a false positive.
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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 ( ! is_scalar( $value ) ) {
|
|
unset( $meta_value[ $key ] );
|
|
} else {
|
|
// These can change, so they're not explicitly listed in comment_as_submitted_allowed_keys.
|
|
if ( strpos( $key, 'POST_ak_' ) === 0 ) {
|
|
continue;
|
|
}
|
|
|
|
if ( ! isset( self::$comment_as_submitted_allowed_keys[ $key ] ) ) {
|
|
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>'
|
|
);
|
|
}
|
|
|
|
public static function load_form_js() {
|
|
if (
|
|
! is_admin()
|
|
&& ( ! function_exists( 'amp_is_request' ) || ! amp_is_request() )
|
|
&& self::get_api_key()
|
|
) {
|
|
wp_register_script( 'akismet-frontend', plugin_dir_url( __FILE__ ) . '_inc/akismet-frontend.js', array(), filemtime( plugin_dir_path( __FILE__ ) . '_inc/akismet-frontend.js' ), true );
|
|
wp_enqueue_script( 'akismet-frontend' );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add the form JavaScript when we detect that a supported form shortcode is being parsed.
|
|
*/
|
|
public static function load_form_js_via_filter( $return_value, $tag, $attr, $m ) {
|
|
if ( in_array( $tag, array( 'contact-form', 'gravityform', 'contact-form-7', 'formidable', 'fluentform' ) ) ) {
|
|
self::load_form_js();
|
|
}
|
|
|
|
return $return_value;
|
|
}
|
|
}
|