WordPress.com API key to use it. You can review the spam it catches under "Comments." To show off your Akismet stats just put <?php akismet_counter(); ?>
in your template.
Version: 2.0.2
Author: Matt Mullenweg
Author URI: http://photomatt.net/
*/
// If you hardcode a WP.com API key here, all key config screens will be hidden
$wpcom_api_key = '';
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';
$akismet_api_port = 80;
add_action('admin_menu', 'akismet_config_page');
}
add_action('init', 'akismet_init');
if ( !function_exists('wp_nonce_field') ) {
function akismet_nonce_field($action = -1) { return; }
$akismet_nonce = -1;
} else {
function akismet_nonce_field($action = -1) { return wp_nonce_field($action); }
$akismet_nonce = 'akismet-update-key';
}
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' );
}
if ( $key_status != 'valid' ) {
$key = get_option('wordpress_api_key');
if ( empty( $key ) ) {
if ( $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://wordpress.com/profile/')),
'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.')));
?>
".__('Akismet is not active.')." ".sprintf(__('You must enter your WordPress.com API key for it to work.'), "plugins.php?page=akismet-key-config")."
"; } add_action('admin_footer', 'akismet_warning'); return; } // Returns array with headers in $response[0] and body in $response[1] function akismet_http_post($request, $host, $path, $port = 80) { global $wp_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/2.0\r\n"; $http_request .= "\r\n"; $http_request .= $request; $response = ''; if( false != ( $fs = @fsockopen($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; } function akismet_auto_check_comment( $comment ) { global $akismet_api_host, $akismet_api_port; $comment['user_ip'] = preg_replace( '/[^0-9., ]/', '', $_SERVER['REMOTE_ADDR'] ); $comment['user_agent'] = $_SERVER['HTTP_USER_AGENT']; $comment['referrer'] = $_SERVER['HTTP_REFERER']; $comment['blog'] = get_option('home'); $ignore = array( 'HTTP_COOKIE' ); foreach ( $_SERVER as $key => $value ) if ( !in_array( $key, $ignore ) ) $comment["$key"] = $value; $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); if ( 'true' == $response[1] ) { add_filter('pre_comment_approved', create_function('$a', 'return \'spam\';')); update_option( 'akismet_spam_count', get_option('akismet_spam_count') + 1 ); $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' ) die; } akismet_delete_old(); return $comment; } function akismet_delete_old() { global $wpdb; $now_gmt = current_time('mysql', 1); $wpdb->query("DELETE FROM $wpdb->comments WHERE DATE_SUB('$now_gmt', INTERVAL 15 DAY) > comment_date_gmt AND comment_approved = 'spam'"); $n = mt_rand(1, 5000); if ( $n == 11 ) // lucky number $wpdb->query("OPTIMIZE TABLE $wpdb->comments"); } function akismet_submit_nonspam_comment ( $comment_id ) { global $wpdb, $akismet_api_host, $akismet_api_port; $comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID = '$comment_id'"); if ( !$comment ) // it was deleted return; $comment->blog = get_option('home'); $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); } function akismet_submit_spam_comment ( $comment_id ) { global $wpdb, $akismet_api_host, $akismet_api_port; $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'); $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); } add_action('wp_set_comment_status', 'akismet_submit_spam_comment'); add_action('edit_comment', 'akismet_submit_spam_comment'); add_action('preprocess_comment', 'akismet_auto_check_comment', 1); function akismet_spam_count() { global $wpdb, $comments; $count = wp_cache_get( 'akismet_spam_count', 'widget' ); if ( false === $count ) { $count = $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; } function akismet_manage_page() { global $wpdb, $submenu; $count = sprintf(__('Akismet Spam (%s)'), akismet_spam_count()); if ( isset( $submenu['edit-comments.php'] ) ) add_submenu_page('edit-comments.php', __('Akismet Spam'), $count, 'moderate_comments', 'akismet-admin', 'akismet_caught' ); elseif ( function_exists('add_management_page') ) add_management_page(__('Akismet Spam'), $count, 'moderate_comments', 'akismet-admin', 'akismet_caught'); } function akismet_caught() { global $wpdb, $comment, $akismet_caught, $akismet_nonce; akismet_recheck_queue(); if (isset($_POST['submit']) && 'recover' == $_POST['action'] && ! empty($_POST['not_spam'])) { check_admin_referer( $akismet_nonce ); if ( function_exists('current_user_can') && !current_user_can('moderate_comments') ) die(__('You do not have sufficient permission to moderate comments.')); $i = 0; foreach ($_POST['not_spam'] as $comment): $comment = (int) $comment; if ( function_exists('wp_set_comment_status') ) wp_set_comment_status($comment, 'approve'); else $wpdb->query("UPDATE $wpdb->comments SET comment_approved = '1' WHERE comment_ID = '$comment'"); akismet_submit_nonspam_comment($comment); ++$i; endforeach; $to = add_query_arg( 'recovered', $i, $_SERVER['HTTP_REFERER'] ); wp_redirect( $to ); exit; } if ('delete' == $_POST['action']) { check_admin_referer( $akismet_nonce ); if ( function_exists('current_user_can') && !current_user_can('moderate_comments') ) die(__('You do not have sufficient permission to moderate comments.')); $delete_time = addslashes( $_POST['display_time'] ); $nuked = $wpdb->query( "DELETE FROM $wpdb->comments WHERE comment_approved = 'spam' AND '$delete_time' > comment_date_gmt" ); wp_cache_delete( 'akismet_spam_count', 'widget' ); $to = add_query_arg( 'deleted', 'all', $_SERVER['HTTP_REFERER'] ); wp_redirect( $to ); exit; } if ( isset( $_GET['recovered'] ) ) { $i = (int) $_GET['recovered']; echo '' . sprintf(__('%1$s comments recovered.'), $i) . "
' . __('All spam deleted.') . '
%1$s spam for you since you first installed it.'), number_format($count) ); ?>
'.__('You have no spam currently in the queue. Must be your lucky day. :)').''; echo ''.__('You can delete all of the spam from your database with a single click. This operation cannot be undone, so you may wish to check to ensure that no legitimate comments got through first. Spam is automatically deleted after 15 days, so don’t sweat it.').'
'; ?>$r
"; ?>'.sprintf(__('Akismet has protected your site from %3$s spam comments.'), 'http://akismet.com/', clean_url("$link?page=akismet-admin"), number_format($count) ).'
'; } add_action('activity_box_end', 'akismet_stats'); if ( 'moderation.php' == $pagenow ) { function akismet_recheck_button( $page ) { global $submenu; if ( isset( $submenu['edit-comments.php'] ) ) $link = 'edit-comments.php'; else $link = 'edit.php'; $button = "" . __('Recheck Queue for Spam') . ""; $page = str_replace( '