<?php akismet_counter(); ?> in your template. See also: WP Stats plugin.
Version: 2.4.0
Author: Automattic
Author URI: http://automattic.com/wordpress-plugins/
License: GPLv2
*/
/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
define('AKISMET_VERSION', '2.4.0');
/** If you hardcode a WP.com API key here, all key config screens will be hidden */
if ( defined('WPCOM_API_KEY') )
$wpcom_api_key = constant('WPCOM_API_KEY');
else
$wpcom_api_key = '';
// Make sure we don't expose any info if called directly
if ( !function_exists( 'add_action' ) ) {
echo "Hi there! I'm just a plugin, not much I can do when called directly.";
exit;
}
if ( $wp_db_version <= 9872 )
include_once( dirname(__FILE__) . '/legacy.php' );
function akismet_init() {
global $wpcom_api_key, $akismet_api_host, $akismet_api_port;
if ( $wpcom_api_key )
$akismet_api_host = $wpcom_api_key . '.rest.akismet.com';
else
$akismet_api_host = get_option('wordpress_api_key') . '.rest.akismet.com';
$akismet_api_port = 80;
add_action('admin_menu', 'akismet_config_page');
add_action('admin_menu', 'akismet_stats_page');
akismet_admin_warnings();
}
add_action('init', 'akismet_init');
function akismet_admin_init() {
if ( function_exists( 'get_plugin_page_hook' ) )
$hook = get_plugin_page_hook( 'akismet-stats-display', 'index.php' );
else
$hook = 'dashboard_page_akismet-stats-display';
add_action('admin_head-'.$hook, 'akismet_stats_script');
}
add_action('admin_init', 'akismet_admin_init');
if ( !function_exists('wp_nonce_field') ) {
function akismet_nonce_field($action = -1) { return; }
$akismet_nonce = -1;
} else {
function akismet_nonce_field($action = -1) { return wp_nonce_field($action); }
$akismet_nonce = 'akismet-update-key';
}
if ( !function_exists('number_format_i18n') ) {
function number_format_i18n( $number, $decimals = null ) { return number_format( $number, $decimals ); }
}
function akismet_config_page() {
if ( function_exists('add_submenu_page') )
add_submenu_page('plugins.php', __('Akismet Configuration'), __('Akismet Configuration'), 'manage_options', 'akismet-key-config', 'akismet_conf');
}
function akismet_conf() {
global $akismet_nonce, $wpcom_api_key;
if ( isset($_POST['submit']) ) {
if ( function_exists('current_user_can') && !current_user_can('manage_options') )
die(__('Cheatin’ uh?'));
check_admin_referer( $akismet_nonce );
$key = preg_replace( '/[^a-h0-9]/i', '', $_POST['key'] );
if ( empty($key) ) {
$key_status = 'empty';
$ms[] = 'new_key_empty';
delete_option('wordpress_api_key');
} else {
$key_status = akismet_verify_key( $key );
}
if ( $key_status == 'valid' ) {
update_option('wordpress_api_key', $key);
$ms[] = 'new_key_valid';
} else if ( $key_status == 'invalid' ) {
$ms[] = 'new_key_invalid';
} else if ( $key_status == 'failed' ) {
$ms[] = 'new_key_failed';
}
if ( isset( $_POST['akismet_discard_month'] ) )
update_option( 'akismet_discard_month', 'true' );
else
update_option( 'akismet_discard_month', 'false' );
} elseif ( isset($_POST['check']) ) {
akismet_get_server_connectivity(0);
}
if ( empty( $key_status) || $key_status != 'valid' ) {
$key = get_option('wordpress_api_key');
if ( empty( $key ) ) {
if ( empty( $key_status ) || $key_status != 'failed' ) {
if ( akismet_verify_key( '1234567890ab' ) == 'failed' )
$ms[] = 'no_connection';
else
$ms[] = 'key_empty';
}
$key_status = 'empty';
} else {
$key_status = akismet_verify_key( $key );
}
if ( $key_status == 'valid' ) {
$ms[] = 'key_valid';
} else if ( $key_status == 'invalid' ) {
delete_option('wordpress_api_key');
$ms[] = 'key_empty';
} else if ( !empty($key) && $key_status == 'failed' ) {
$ms[] = 'key_failed';
}
}
$messages = array(
'new_key_empty' => array('color' => 'aa0', 'text' => __('Your key has been cleared.')),
'new_key_valid' => array('color' => '2d2', 'text' => __('Your key has been verified. Happy blogging!')),
'new_key_invalid' => array('color' => 'd22', 'text' => __('The key you entered is invalid. Please double-check it.')),
'new_key_failed' => array('color' => 'd22', 'text' => __('The key you entered could not be verified because a connection to akismet.com could not be established. Please check your server configuration.')),
'no_connection' => array('color' => 'd22', 'text' => __('There was a problem connecting to the Akismet server. Please check your server configuration.')),
'key_empty' => array('color' => 'aa0', 'text' => sprintf(__('Please enter an API key. (Get your key.)'), 'http://akismet.com/get/')),
'key_valid' => array('color' => '2d2', 'text' => __('This key is valid.')),
'key_failed' => array('color' => 'aa0', 'text' => __('The key below was previously validated but a connection to akismet.com can not be established at this time. Please check your server configuration.')));
?>
'.sprintf(__('Akismet has protected your site from %3$s spam comments.'), 'http://akismet.com/', clean_url("$link?page=akismet-admin"), number_format_i18n($count) ).'
'; } add_action('activity_box_end', 'akismet_stats'); function akismet_get_key() { global $wpcom_api_key; if ( !empty($wpcom_api_key) ) return $wpcom_api_key; return get_option('wordpress_api_key'); } function akismet_verify_key( $key, $ip = null ) { global $akismet_api_host, $akismet_api_port, $wpcom_api_key; $blog = urlencode( get_option('home') ); if ( $wpcom_api_key ) $key = $wpcom_api_key; $response = akismet_http_post("key=$key&blog=$blog", 'rest.akismet.com', '/1.1/verify-key', $akismet_api_port, $ip); if ( !is_array($response) || !isset($response[1]) || $response[1] != 'valid' && $response[1] != 'invalid' ) return 'failed'; return $response[1]; } // Check connectivity between the WordPress blog and Akismet's servers. // Returns an associative array of server IP addresses, where the key is the IP address, and value is true (available) or false (unable to connect). function akismet_check_server_connectivity() { global $akismet_api_host, $akismet_api_port, $wpcom_api_key; $test_host = 'rest.akismet.com'; // Some web hosts may disable one or both functions if ( !function_exists('fsockopen') || !function_exists('gethostbynamel') ) return array(); $ips = gethostbynamel($test_host); if ( !$ips || !is_array($ips) || !count($ips) ) return array(); $servers = array(); foreach ( $ips as $ip ) { $response = akismet_verify_key( akismet_get_key(), $ip ); // even if the key is invalid, at least we know we have connectivity if ( $response == 'valid' || $response == 'invalid' ) $servers[$ip] = true; else $servers[$ip] = false; } return $servers; } // Check the server connectivity and store the results in an option. // Cached results will be used if not older than the specified timeout in seconds; use $cache_timeout = 0 to force an update. // Returns the same associative array as akismet_check_server_connectivity() function akismet_get_server_connectivity( $cache_timeout = 86400 ) { $servers = get_option('akismet_available_servers'); if ( (time() - get_option('akismet_connectivity_time') < $cache_timeout) && $servers !== false ) return $servers; // There's a race condition here but the effect is harmless. $servers = akismet_check_server_connectivity(); update_option('akismet_available_servers', $servers); update_option('akismet_connectivity_time', time()); return $servers; } // Returns true if server connectivity was OK at the last check, false if there was a problem that needs to be fixed. function akismet_server_connectivity_ok() { // skip the check on WPMU because the status page is hidden global $wpcom_api_key; if ( $wpcom_api_key ) return true; $servers = akismet_get_server_connectivity(); return !( empty($servers) || !count($servers) || count( array_filter($servers) ) < count($servers) ); } function akismet_admin_warnings() { global $wpcom_api_key; if ( !get_option('wordpress_api_key') && !$wpcom_api_key && !isset($_POST['submit']) ) { function akismet_warning() { echo " "; } add_action('admin_notices', 'akismet_warning'); return; } elseif ( get_option('akismet_connectivity_time') && empty($_POST) && is_admin() && !akismet_server_connectivity_ok() ) { function akismet_warning() { echo " "; } add_action('admin_notices', 'akismet_warning'); return; } } function akismet_get_host($host) { // if all servers are accessible, just return the host name. // if not, return an IP that was known to be accessible at the last check. if ( akismet_server_connectivity_ok() ) { return $host; } else { $ips = akismet_get_server_connectivity(); // a firewall may be blocking access to some Akismet IPs if ( count($ips) > 0 && count(array_filter($ips)) < count($ips) ) { // use DNS to get current IPs, but exclude any known to be unreachable $dns = (array)gethostbynamel( rtrim($host, '.') . '.' ); $dns = array_filter($dns); foreach ( $dns as $ip ) { if ( array_key_exists( $ip, $ips ) && empty( $ips[$ip] ) ) unset($dns[$ip]); } // return a random IP from those available if ( count($dns) ) return $dns[ array_rand($dns) ]; } } // if all else fails try the host name return $host; } // return a comma-separated list of role names for the given user function akismet_get_user_roles($user_id ) { $roles = false; if ( !class_exists('WP_User') ) return false; if ( $user_id > 0 ) { $comment_user = new WP_User($user_id); if ( isset($comment_user->roles) ) $roles = join(',', $comment_user->roles); } return $roles; } // Returns array with headers in $response[0] and body in $response[1] function akismet_http_post($request, $host, $path, $port = 80, $ip=null) { global $wp_version; $akismet_version = constant('AKISMET_VERSION'); $http_request = "POST $path HTTP/1.0\r\n"; $http_request .= "Host: $host\r\n"; $http_request .= "Content-Type: application/x-www-form-urlencoded; charset=" . get_option('blog_charset') . "\r\n"; $http_request .= "Content-Length: " . strlen($request) . "\r\n"; $http_request .= "User-Agent: WordPress/$wp_version | Akismet/$akismet_version\r\n"; $http_request .= "\r\n"; $http_request .= $request; $http_host = $host; // use a specific IP if provided - needed by akismet_check_server_connectivity() if ( $ip && long2ip(ip2long($ip)) ) { $http_host = $ip; } else { $http_host = akismet_get_host($host); } $response = ''; if( false != ( $fs = @fsockopen($http_host, $port, $errno, $errstr, 10) ) ) { fwrite($fs, $http_request); while ( !feof($fs) ) $response .= fgets($fs, 1160); // One TCP-IP packet fclose($fs); $response = explode("\r\n\r\n", $response, 2); } return $response; } // filter handler used to return a spam result to pre_comment_approved function akismet_result_spam( $approved ) { // bump the counter here instead of when the filter is added to reduce the possibility of overcounting if ( $incr = apply_filters('akismet_spam_count_incr', 1) ) update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr ); return 'spam'; } function akismet_auto_check_comment( $commentdata ) { global $akismet_api_host, $akismet_api_port; $comment = $commentdata; $comment['user_ip'] = $_SERVER['REMOTE_ADDR']; $comment['user_agent'] = $_SERVER['HTTP_USER_AGENT']; $comment['referrer'] = $_SERVER['HTTP_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']); $comment['user_role'] = akismet_get_user_roles($comment['user_ID']); $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"] = ''; $query_string = ''; foreach ( $comment as $key => $data ) $query_string .= $key . '=' . urlencode( stripslashes($data) ) . '&'; $response = akismet_http_post($query_string, $akismet_api_host, '/1.1/comment-check', $akismet_api_port); $commentdata['akismet_result'] = $response[1]; if ( 'true' == $response[1] ) { // akismet_spam_count will be incremented later by akismet_result_spam() add_filter('pre_comment_approved', 'akismet_result_spam'); do_action( 'akismet_spam_caught' ); $post = get_post( $comment['comment_post_ID'] ); $last_updated = strtotime( $post->post_modified_gmt ); $diff = time() - $last_updated; $diff = $diff / 86400; if ( $post->post_type == 'post' && $diff > 30 && get_option( 'akismet_discard_month' ) == 'true' && empty($comment['user_ID']) ) { // akismet_result_spam() won't be called so bump the counter here if ( $incr = apply_filters('akismet_spam_count_incr', 1) ) update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr ); die; } } if ( function_exists('wp_next_scheduled') && function_exists('wp_schedule_event') ) { // WP 2.1+: delete old comments daily if ( !wp_next_scheduled('akismet_scheduled_delete') ) wp_schedule_event(time(), 'daily', 'akismet_scheduled_delete'); } elseif ( (mt_rand(1, 10) == 3) ) { // WP 2.0: run this one time in ten akismet_delete_old(); } return $commentdata; } function akismet_delete_old() { global $wpdb; $now_gmt = current_time('mysql', 1); $comment_ids = $wpdb->get_col("SELECT comment_id FROM $wpdb->comments WHERE DATE_SUB('$now_gmt', INTERVAL 15 DAY) > comment_date_gmt AND comment_approved = 'spam'"); if ( empty( $comment_ids ) ) return; do_action( 'delete_comment', $comment_ids ); $wpdb->query("DELETE FROM $wpdb->comments WHERE comment_id IN ( " . implode( ', ', $comment_ids ) . " )"); $n = mt_rand(1, 5000); if ( apply_filters('akismet_optimize_table', ($n == 11)) ) // lucky number $wpdb->query("OPTIMIZE TABLE $wpdb->comments"); } add_action('akismet_scheduled_delete', 'akismet_delete_old'); function akismet_submit_nonspam_comment ( $comment_id ) { global $wpdb, $akismet_api_host, $akismet_api_port, $current_user, $current_site; $comment_id = (int) $comment_id; $comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID = '$comment_id'"); if ( !$comment ) // it was deleted return; $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 ( isset( $comment->user_ID ) ) $comment->user_role = akismet_get_user_roles($comment->user_ID); $query_string = ''; foreach ( $comment as $key => $data ) $query_string .= $key . '=' . urlencode( stripslashes($data) ) . '&'; $response = akismet_http_post($query_string, $akismet_api_host, "/1.1/submit-ham", $akismet_api_port); do_action('akismet_submit_nonspam_comment', $comment_id, $response[1]); } function akismet_submit_spam_comment ( $comment_id ) { global $wpdb, $akismet_api_host, $akismet_api_port, $current_user, $current_site; $comment_id = (int) $comment_id; $comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID = '$comment_id'"); if ( !$comment ) // it was deleted return; if ( 'spam' != $comment->comment_approved ) return; $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 ( !isset( $comment->user_id ) ) $comment->user_role = akismet_get_user_roles($comment->user_ID); $query_string = ''; foreach ( $comment as $key => $data ) $query_string .= $key . '=' . urlencode( stripslashes($data) ) . '&'; $response = akismet_http_post($query_string, $akismet_api_host, "/1.1/submit-spam", $akismet_api_port); do_action('akismet_submit_spam_comment', $comment_id, $response[1]); } add_action('preprocess_comment', 'akismet_auto_check_comment', 1); // For old versions of WP only function akismet_set_comment_status( $comment_id, $status ) { if ( $status == 'spam' ) { akismet_submit_spam_comment( $comment_id ); } elseif ( $status == 'approve' ) { akismet_submit_nonspam_comment( $comment_id ); } } // For WP 2.7+ function akismet_transition_comment_status( $new_status, $old_status, $comment ) { if ( $new_status == $old_status ) return; if ( $new_status == 'spam' ) { akismet_submit_spam_comment( $comment->comment_ID ); } elseif ( $old_status == 'spam' && ( $new_status == 'approved' || $new_status == 'unapproved' ) ) { akismet_submit_nonspam_comment( $comment->comment_ID ); } } function akismet_spamtoham( $comment ) { akismet_submit_nonspam_comment( $comment->comment_ID ); } if ( function_exists( 'wp_transition_comment_status' ) ) { add_action( 'transition_comment_status', 'akismet_transition_comment_status', 10, 3 ); } else { add_action('wp_set_comment_status', 'akismet_set_comment_status', 10, 2); add_action('edit_comment', 'akismet_submit_spam_comment'); add_filter( 'comment_spam_to_approved', 'akismet_spamtoham' ); add_filter( 'comment_spam_to_unapproved', 'akismet_spamtoham' ); } // Total spam in queue // get_option( 'akismet_spam_count' ) is the total caught ever function akismet_spam_count( $type = false ) { global $wpdb; if ( !$type ) { // total $count = wp_cache_get( 'akismet_spam_count', 'widget' ); if ( false === $count ) { if ( function_exists('wp_count_comments') ) { $count = wp_count_comments(); $count = $count->spam; } else { $count = (int) $wpdb->get_var("SELECT COUNT(comment_ID) FROM $wpdb->comments WHERE comment_approved = 'spam'"); } wp_cache_set( 'akismet_spam_count', $count, 'widget', 3600 ); } return $count; } elseif ( 'comments' == $type || 'comment' == $type ) { // comments $type = ''; } else { // pingback, trackback, ... $type = $wpdb->escape( $type ); } return (int) $wpdb->get_var("SELECT COUNT(comment_ID) FROM $wpdb->comments WHERE comment_approved = 'spam' AND comment_type='$type'"); } // WP 2.5+ function akismet_rightnow() { global $submenu, $wp_db_version; // clean_url was deprecated in WP 3.0 $esc_url = 'clean_url'; if ( function_exists( 'esc_url' ) ) $esc_url = 'esc_url'; if ( 8645 < $wp_db_version ) // 2.7 $link = 'edit-comments.php?comment_status=spam'; elseif ( isset( $submenu['edit-comments.php'] ) ) $link = 'edit-comments.php?page=akismet-admin'; else $link = 'edit.php?page=akismet-admin'; if ( $count = get_option('akismet_spam_count') ) { $intro = sprintf( __ngettext( 'Akismet has protected your site from %2$s spam comment already,', 'Akismet has protected your site from %2$s spam comments already,', $count ), 'http://akismet.com/', number_format_i18n( $count ) ); } else { $intro = sprintf( __('Akismet blocks spam from getting to your blog,'), 'http://akismet.com/' ); } if ( $queue_count = akismet_spam_count() ) { $queue_text = sprintf( __ngettext( 'and there\'s %1$s comment in your spam queue right now.', 'and there are %1$s comments in your spam queue right now.', $queue_count ), number_format_i18n( $queue_count ), clean_url($link) ); } else { $queue_text = sprintf( __( "but there's nothing in your spam queue at the moment." ), $esc_url($link) ); } // _c was deprecated in WP 2.9.0 if ( function_exists( '_x' ) ) $text = sprintf( _x( '%1$s %2$s', 'akismet_rightnow' ), $intro, $queue_text ); else $text = sprintf( _c( '%1$s %2$s|akismet_rightnow' ), $intro, $queue_text ); echo "\n"; } add_action('rightnow_end', 'akismet_rightnow'); // For WP >= 2.5 function akismet_check_for_spam_button($comment_status) { if ( 'approved' == $comment_status ) return; if ( function_exists('plugins_url') ) $link = 'admin.php?action=akismet_recheck_queue'; else $link = 'edit-comments.php?page=akismet-admin&recheckqueue=true&noheader=true'; echo "