--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-content/plugins/akismet/class.akismet.php Tue Jun 09 03:35:32 2015 +0200
@@ -0,0 +1,1148 @@
+<?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 $comment_as_submitted_allowed_keys = array( 'blog' => '', 'blog_charset' => '', 'blog_lang' => '', 'blog_ua' => '', 'comment_agent' => '', 'comment_author' => '', 'comment_author_IP' => '', 'comment_author_email' => '', 'comment_author_url' => '', 'comment_content' => '', 'comment_date_gmt' => '', 'comment_tags' => '', 'comment_type' => '', 'guid' => '', 'is_test' => '', 'permalink' => '', 'reporter' => '', 'site_domain' => '', 'submit_referer' => '', 'submit_uri' => '', 'user_ID' => '', 'user_agent' => '', 'user_id' => '', 'user_ip' => '' );
+
+ public static function init() {
+ if ( ! self::$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_action( 'akismet_scheduled_delete', array( 'Akismet', 'delete_old_comments' ) );
+ add_action( 'akismet_scheduled_delete', array( 'Akismet', 'delete_old_comments_meta' ) );
+ add_action( 'akismet_schedule_cron_recheck', array( 'Akismet', 'cron_recheck' ) );
+
+ $akismet_comment_nonce_option = apply_filters( 'akismet_comment_nonce', get_option( 'akismet_comment_nonce' ) );
+
+ if ( $akismet_comment_nonce_option == 'true' || $akismet_comment_nonce_option == '' )
+ add_action( 'comment_form', 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( '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' ) );
+
+ if ( '3.0.5' == $GLOBALS['wp_version'] ) {
+ remove_filter( 'comment_text', 'wp_kses_data' );
+ if ( is_admin() )
+ add_filter( 'comment_text', 'wp_kses_post' );
+ }
+ }
+
+ 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 ) {
+ $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];
+ }
+
+ 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'] );
+
+ $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;
+ }
+
+ $ignore = array( 'HTTP_COOKIE', 'HTTP_COOKIE2', 'PHP_AUTH_PW' );
+
+ foreach ( $_SERVER as $key => $value ) {
+ if ( !in_array( $key, $ignore ) && is_string($value) )
+ $comment["$key"] = $value;
+ else
+ $comment["$key"] = '';
+ }
+
+ $post = get_post( $comment['comment_post_ID'] );
+ $comment[ 'comment_post_modified_gmt' ] = $post->post_modified_gmt;
+
+ $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 ) {
+ // akismet_result_spam() won't be called so bump the counter here
+ if ( $incr = apply_filters('akismet_spam_count_incr', 1) )
+ update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr );
+ $redirect_to = isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : get_permalink( $post );
+ wp_safe_redirect( esc_url_raw( $redirect_to ) );
+ die();
+ }
+ }
+
+ // if the response is neither true nor false, hold the comment for moderation and schedule a recheck
+ if ( 'true' != $response[1] && 'false' != $response[1] ) {
+ if ( !current_user_can('moderate_comments') ) {
+ // Comment status should be moderated
+ self::$last_comment_result = '0';
+ }
+ if ( function_exists('wp_next_scheduled') && function_exists('wp_schedule_single_event') ) {
+ if ( !wp_next_scheduled( 'akismet_schedule_cron_recheck' ) ) {
+ wp_schedule_single_event( time() + 1200, 'akismet_schedule_cron_recheck' );
+ do_action( 'akismet_scheduled_recheck', 'invalid-response-' . $response[1] );
+ }
+ }
+
+ self::$prevent_moderation_email_for_these_comments[] = $commentdata;
+ }
+
+ if ( function_exists('wp_next_scheduled') && function_exists('wp_schedule_event') ) {
+ // WP 2.1+: delete old comments daily
+ if ( !wp_next_scheduled( 'akismet_scheduled_delete' ) )
+ wp_schedule_event( time(), 'daily', 'akismet_scheduled_delete' );
+ }
+ elseif ( (mt_rand(1, 10) == 3) ) {
+ // WP 2.0: run this one time in ten
+ self::delete_old_comments();
+ }
+
+ 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, $comment ) {
+
+ // failsafe for old WP versions
+ if ( !function_exists('add_comment_meta') )
+ return false;
+
+ if ( !isset( self::$last_comment['comment_author_email'] ) )
+ self::$last_comment['comment_author_email'] = '';
+
+ // wp_insert_comment() might be called in other contexts, so make sure this is the same comment
+ // as was checked by 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' );
+ if ( $comment->comment_approved == 'spam' ) {
+ if ( wp_blacklist_check($comment->comment_author, $comment->comment_author_email, $comment->comment_author_url, $comment->comment_content, $comment->comment_author_IP, $comment->comment_agent) )
+ 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 );
+ }
+
+ $comma_comment_ids = implode( ', ', array_map('intval', $comment_ids) );
+
+ $wpdb->query("DELETE FROM {$wpdb->comments} WHERE comment_id IN ( $comma_comment_ids )");
+ $wpdb->query("DELETE FROM {$wpdb->commentmeta} WHERE comment_id IN ( $comma_comment_ids )");
+
+ clean_comment_cache( $comment_ids );
+ }
+
+ 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 );
+
+ # enfore 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' );
+ }
+ }
+
+ 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 ) {
+
+ // failsafe for old WP versions
+ if ( !function_exists('add_comment_meta') )
+ return false;
+
+ $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;
+
+ // failsafe for old WP versions
+ if ( !function_exists('add_comment_meta') )
+ return false;
+
+ $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;
+
+ $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;
+
+ if ( self::is_test_mode() )
+ $c['is_test'] = 'true';
+
+ $response = self::http_post( Akismet::build_query( $c ), 'comment-check' );
+
+ return ( is_array( $response ) && ! empty( $response[1] ) ) ? $response[1] : false;
+ }
+
+
+
+ public static function transition_comment_status( $new_status, $old_status, $comment ) {
+
+ if ( $new_status == $old_status )
+ return;
+
+ # 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;
+
+ global $current_user;
+ $reporter = '';
+ if ( is_object( $current_user ) )
+ $reporter = $current_user->user_login;
+
+ // 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 ( ( isset( $_POST['status'] ) && in_array( $_POST['status'], array( 'spam', 'unspam' ) ) ) ||
+ ( isset( $_POST['spam'] ) && (int) $_POST['spam'] == 1 ) ||
+ ( isset( $_POST['unspam'] ) && (int) $_POST['unspam'] == 1 ) ||
+ ( isset( $_POST['comment_status'] ) && in_array( $_POST['comment_status'], array( 'spam', 'unspam' ) ) ) ||
+ ( isset( $_GET['action'] ) && in_array( $_GET['action'], array( 'spam', 'unspam' ) ) ) ||
+ ( isset( $_POST['action'] ) && in_array( $_POST['action'], array( 'editedcomment' ) ) )
+ ) {
+ 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_bloginfo('url');
+ $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 ( isset( $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 );
+ $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_bloginfo('url');
+ $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 ( isset( $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 );
+ $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 || strtotime( $comment->comment_date_gmt ) < strtotime( "-15 days" ) ) {
+ 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 ) {
+ 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;
+
+ return (
+ isset( $comment1['comment_post_ID'], $comment2['comment_post_ID'] )
+ && intval( $comment1['comment_post_ID'] ) == intval( $comment2['comment_post_ID'] )
+ && (
+ $comment1['comment_author'] == $comment2['comment_author']
+ || stripslashes( $comment1['comment_author'] ) == $comment2['comment_author']
+ || $comment1['comment_author'] == stripslashes( $comment2['comment_author'] )
+ )
+ && (
+ $comment1['comment_author_email'] == $comment2['comment_author_email']
+ || stripslashes( $comment1['comment_author_email'] ) == $comment2['comment_author_email']
+ || $comment1['comment_author_email'] == stripslashes( $comment2['comment_author_email'] )
+ )
+ );
+ }
+
+ // Does the supplied comment match the details of the one most recently stored in self::$last_comment?
+ public static function matches_last_comment( $comment ) {
+ if ( is_object( $comment ) )
+ $comment = (array) $comment;
+
+ return self::comments_match( self::$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, $comment ) {
+ // Only do this if it's the correct comment
+ if ( is_null(self::$last_comment_result) || ! self::matches_last_comment( $comment ) ) {
+ self::log( "comment_is_spam mismatched comment, returning unaltered $approved" );
+ 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 && function_exists( 'wp_http_supports') && ( $ssl = wp_http_supports( array( 'ssl' ) ) ) ) {
+ $akismet_url = set_url_scheme( $akismet_url, 'https' );
+
+ do_action( 'akismet_https_request_pre' );
+ }
+
+ $response = wp_remote_post( $akismet_url, $http_args );
+
+ Akismet::log( compact( 'akismet_url', 'http_args', 'response' ) );
+
+ if ( $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.
+ private 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() {
+ // WP < 3.3 can't enqueue a script this late in the game and still have it appear in the footer.
+ // Once we drop support for everything pre-3.3, this can change back to a single enqueue call.
+ wp_register_script( 'akismet-form', AKISMET__PLUGIN_URL . '_inc/form.js', array(), AKISMET_VERSION, true );
+ add_action( 'wp_footer', array( 'Akismet', 'print_form_js' ) );
+ add_action( 'admin_footer', array( 'Akismet', 'print_form_js' ) );
+ }
+
+ public static function print_form_js() {
+ wp_print_scripts( 'akismet-form' );
+ }
+
+ 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>
+<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', 'http://wordpress.org/extend/plugins/akismet/download/');
+
+ Akismet::bail_on_activation( $message );
+ }
+ }
+
+ /**
+ * Removes all connection options
+ * @static
+ */
+ public static function plugin_deactivation( ) {
+ return self::deactivate_key( self::get_api_key() );
+ }
+
+ /**
+ * 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, 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_LOG' ) && WP_DEBUG_LOG ) ) {
+ error_log( print_r( compact( 'akismet_debug' ), true ) );
+ }
+ }
+
+ public static function pre_check_pingback( $method ) {
+ if ( $method !== 'pingback.ping' )
+ return;
+
+ global $wp_xmlrpc_server;
+
+ if ( !is_object( $wp_xmlrpc_server ) )
+ return false;
+
+ // Lame: tightly coupled with the IXR class.
+ $args = $wp_xmlrpc_server->message->params;
+
+ if ( !empty( $args[1] ) ) {
+ $post_id = url_to_postid( $args[1] );
+
+ // If this gets through the pre-check, make sure we properly identify the outbound request as a pingback verification
+ Akismet::pingback_forwarded_for( null, $args[0] );
+ add_filter( 'http_request_args', array( 'Akismet', 'pingback_forwarded_for' ), 10, 2 );
+
+ $comment = array(
+ 'comment_author_url' => $args[0],
+ 'comment_post_ID' => $post_id,
+ 'comment_author' => '',
+ 'comment_author_email' => '',
+ 'comment_content' => '',
+ 'comment_type' => 'pingback',
+ 'akismet_pre_check' => '1',
+ 'comment_pingback_target' => $args[1],
+ );
+
+ $comment = Akismet::auto_check_comment( $comment );
+
+ if ( isset( $comment['akismet_result'] ) && 'true' == $comment['akismet_result'] ) {
+ // Lame: tightly coupled with the IXR classes. Unfortunately the action provides no context and no way to return anything.
+ $wp_xmlrpc_server->error( new IXR_Error( 0, 'Invalid discovery target' ) );
+ }
+ }
+ }
+
+ public static function pingback_forwarded_for( $r, $url ) {
+ static $urls = array();
+
+ // Call this with $r == null to prime the callback to add headers on a specific URL
+ if ( is_null( $r ) && !in_array( $url, $urls ) ) {
+ $urls[] = $url;
+ }
+
+ // Add X-Pingback-Forwarded-For header, but only for requests to a specific URL (the apparent pingback source)
+ if ( is_array( $r ) && is_array( $r['headers'] ) && !isset( $r['headers']['X-Pingback-Forwarded-For'] ) && in_array( $url, $urls ) ) {
+ $remote_ip = preg_replace( '/[^a-fx0-9:.,]/i', '', $_SERVER['REMOTE_ADDR'] );
+
+ // Note: this assumes REMOTE_ADDR is correct, and it may not be if a reverse proxy or CDN is in use
+ $r['headers']['X-Pingback-Forwarded-For'] = $remote_ip;
+
+ // Also identify the request as a pingback verification in the UA string so it appears in logs
+ $r['user-agent'] .= '; verifying pingback from ' . $remote_ip;
+ }
+
+ return $r;
+ }
+
+ /**
+ * 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;
+ }
+}
\ No newline at end of file