time(), 'password' => $password );
update_option( 'aln_login_attempts', $alerts );
// Bump a counter of failed attempts
$attempts_since_viewed = (int) get_option( 'aln_login_attempts_since_viewed' );
update_option( 'aln_login_attempts_since_viewed', ++$attempts_since_viewed );
// Okay, carry on with the login attempt
return $null;
}
// Register the plugin's menu under the Tools panel
function submenu() {
$submenu_hookname = add_submenu_page(
'tools.php',
esc_html( __( 'Admin Login Notifier' ) ),
esc_html( __( 'Admin Login Notifier' ) ),
apply_filters( 'aln_menu_cap', 'manage_options' ),
'admin-login-notifier',
array( $this, 'submenu_ui' )
);
return $submenu_hookname;
}
// Build the menu UI
function submenu_ui() {
global $title;
if ( ! current_user_can( apply_filters( 'aln_cap_level', 'manage_options' ) ) )
wp_die( esc_html( __( 'You do not have sufficient permissions to access this page.' ) ) );
// Reset the counter of failed attempts
update_option( 'aln_login_attempts_since_viewed', 0 );
// Page header
echo sprintf( '%s
%s
', get_screen_icon( 'tools' ), esc_html( $title ) );
// Show login attempts
$alerts = get_option( 'aln_login_attempts' );
if ( ! $alerts || ! is_array( $alerts ) )
return false;
echo '';
echo sprintf(
'| %s | %s |
|---|
',
esc_html( __( 'Date' ) ),
esc_html( __( 'Password' ) )
);
foreach ( $alerts as $alert ) {
if ( ! $alert )
continue;
echo sprintf( '| %s | %s |
', date( 'M d, Y', $alert['time'] ), esc_html( $alert['password'] ) );
}
echo '
';
return true;
}
// Schedule daily emails to be sent when there are new login attempts
function schedule_cron() {
return wp_schedule_event( current_time( 'timestamp' ), 'daily', 'aln_send_daily_email' );
}
function create_options() {
add_option( 'aln_login_attempts', array(), '', 'no' );
add_option( 'aln_login_attempts_since_viewed', array(), '', 'no' );
}
// Remove the scheduled daily email
function clear_cron() {
// wp_clean_scheduled_hook() doesn't return a meaningful value, so neither does this function
wp_clear_scheduled_hook( 'aln_send_daily_email' );
}
// Send an email with the last day's attempts
function aln_send_daily_email() {
// Get latest updates
$aln_login_attempts = get_option( 'aln_login_attempts' );
$new_attempts = array();
foreach ( $aln_login_attempts as $attempt ) {
if ( $attempt['time'] > time() - ( 60 * 60 * 24 ) )
$new_attempts[] = $attempt['password'];
}
if( ! $new_attempts )
return false;
// Who should we tell?
$user_args = array(
'role' => 'administrator',
'number' => 1,
'fields' => array( 'user_email' ),
);
$user = apply_filters( 'aln_send_daily_email_user', get_users( $user_args ) );
// Make sure we got an email address...
if ( ! $user || ! $user[0] || ! $user[0]->user_email || ! is_email( $user[0]->user_email ) )
return false;
//Now tell them!
$email_address = apply_filters( 'aln_send_daily_email_address', $user[0]->user_email );
$subject = apply_filters( 'aln_send_daily_email_subject', esc_html( __( "Today's admin login attempts" ) ) );
$message = sprintf(
esc_html( __( 'In the last day, someone tried to log into %1$s as "admin" %2$d %3$s.' ) ),
esc_url( home_url() ),
number_format_i18n( count( $new_attempts ) ),
_n( 'time', 'times', count( $new_attempts ) )
);
$message .= "\n\n";
$message .= esc_html( __( 'They used the passwords:' ) );
$message .= "\n\n";
foreach ( $new_attempts as $new_attempt )
$message .= esc_html( $new_attempt ) . "\n";
$message .= "\n";
$message .= esc_html( __( 'Silly bots!' ) );
$message = apply_filters( 'aln_send_daily_email_message', $message );
$sent = wp_mail( $email_address, $subject, $message );
// Update the since last viewed count
if ( ! $sent )
return false;
// Optionally delete saved attempts once they're emailed
if ( ! apply_filters( 'aln_save_all_login_attempts', true ) )
delete_option( 'aln_login_attempts' );
update_option( 'aln_login_attempts_since_viewed', 0 );
return true;
}
function check_version_update() {
$current_version = get_option( 'aln_current_version' );
if( self::version == $current_version )
return;
// Un-autoload these options
$aln_login_attempts = get_option( 'aln_login_attempts' );
delete_option( 'aln_login_attempts' );
add_option( 'aln_login_attempts', $aln_login_attempts, '', 'no' );
$aln_login_attempts_since_viewed = get_option( 'aln_login_attempts_since_viewed' );
delete_option( 'aln_login_attempts_since_viewed' );
add_option( 'aln_login_attempts_since_viewed', $aln_login_attempts_since_viewed, '', 'no' );
// Set the current version
add_option( 'aln_current_version', self::version );
}
}
new Admin_Login_Notifier;