postfixadmin/model/PFAHandler.php

<?php
class PFAHandler {

    /**
     * @return return value of previously called method
     */
    public function result() {
        return $this->return;
    }


    /**
      * functions for basic input validation
      */
    function _inp_num($val) {
        return (int)($val);
    }

    function _inp_bool($val) {
        return $val ? db_get_boolean(true): db_get_boolean(false);
    }

    function _inp_password($val){
        # TODO: fetchmail specific. Not suited for mailbox/admin passwords.
        return base64_encode($val);
    }

}
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