Wordpress password reset hook
Yes, there are hooks for this in /wp-login.php (password reset) and /wp-admin/includes/user.php (password change in user page).
# When reseting password in wp-loginadd_action( 'password_reset', function( $user, $pass ) { var_dump( $pass ); die();}, 10, 2 );and
# When checking if passwords matchadd_action( 'check_passwords', function( $user, $pass1, $pass2 ) { var_dump( $pass1 ); die();}, 10, 3 );
You can try using hook the validate_password_reset to validate password. Following code can be used to validate alphanumeric password.
add_action('validate_password_reset','wdm_validate_password_reset',10,2);function wdm_validate_password_reset( $errors, $user){ $exp = '/^(?=.*\d)((?=.*[a-z])|(?=.*[A-Z])).{6,32}$/'; if(strlen($_POST['pass1'])<6 || !preg_match($exp, $_POST['pass1']) ) $errors->add( 'error', 'Password must be alphanumeric and contain minimum 6 characters.','');}