<?php
/**
 * Requires the Zend framework is installed and in the include path.
 *
 * Usage example:
 * require_once('Zend/XmlRpc/Client.php');
 * $xmlrpc = new Zend_XmlRpc_Client('http://server/xmlrpc.php');
 *
 * $http_client = $xmlrpc->getHttpClient();
 * $http_client->setCookieJar();
 *
 * $login_object = $xmlrpc->getProxy('login');
 * $success = $login_object->login($username, $password);
 *
 * if($success) {
 *     echo "We're logged in";
 * }
 * else {
 *     die("Auth failed");
 * }
 * $user = $xmlrpc->getProxy('user');
 * $alias = $xmlrpc->getProxy('alias');
 * $vacation = $xmlrpc->getProxy('vacation');
 *
 * if($vacation->isEnabled()) {
 *     echo "Vacation turned on for user";
 * }
 *
 * Note, the requirement that your XmlRpc client provides cookies with each request.
 * If it does not do this, then your authentication details will not persist across requests.
 */

require_once('Zend/XmlRpc/Server.php');
$server = new Zend_XmlRpc_Server();
session_start();

function login($username, $password) {
    if(UserHandler::login($username, $password)) {
        session_regenerate_id();
        $_SESSION['authenticated'] = true;
        $_SESSION['username'] = $username;
    }
}

if(!isset($_SESSION['authenticated'])) {
    $server->addFunction('login', 'login');
}
else {
    $server->addClass('user', 'UserProxy');
    $server->addClass('vacation', 'VacationProxy');
    $server->addClass('alias', 'AliasProxy');
}
echo $server->handle();


class UserProxy {

    /**
     * @param string $old_password
     * @param string $new_password
     * @return boolean true on success
     */
    public function changePassword($old_password, $new_password) {
        $uh = new UserHandler($_SESSION['username']);
        return $uh->change_pass($username, $old_password, $new_password);
    }
}
class VacationProxy {
    /**
     * @return boolean true if the vacation is removed successfully. Else false.
     */
    public function remove() {
        $vh = new VacationHandler($_SESSION['username']);
        return $vh->remove();
    }

    /**
     * @return boolean true if vacation stuff is enabled in this instance of postfixadmin
     * and the user has the ability to make changes to it.
     */
    public function isVacationSupported() {
        $vh = new VacationHandler($_SESSION['username']);
        return $vh->vacation_supported();
    }

    /**
     * @return boolean true if the user has an active vacation record etc.
     */
    public function checkVacation() {
        $vh = new VacationHandler($_SESSION['username']);
        return $vh->check_vacation();
    }

    /**
     * @return struct|boolean - either array of vacation details or boolean false if the user has none.
     */
    public function getDetails() {
        $vh = new VacationHandler($_SESSION['username']);
        return $vh->get_details();
    }

    /**
     * @param string $subject
     * @param string $body
     * @return boolean true on success.
     */
    public function setAway($subject, $body) {
        $vh = new VacationHandler($_SESSION['username']);
        return $vh->set_away($subject, $body);
    }


}
class AliasProxy {
    /**
     * @return array - array of aliases this user has. Array may be empty.
     */
    public function get() {
        $ah = new AliasHandler($_SESSION['username']);
        /* I see no point in returning special addresses to the user. */
        return $ah->get(false);
    }

    /**
     * @param array of email addresses (Strings)
     * @param string flag to set ('forward_and_store' or 'remote_only')
     * @return boolean true
     */
    public function update($addresses, $flags) {
        $ah = new AliasHandler($_SESSION['username']);
        /**
         * if the user is on vacation, they should use VacationProxy stuff to remove it 
         * and we'll never return the vacation address from here anyway
         */
        return $ah->update($addresses, $flags, true);
    }

    /**
     * @return boolean true if the user has 'store_and_forward' set.
     * (i.e. their email address is also in the alias table). IF it returns false, then it's 'remote_only'
     */
    public function hasStoreAndForward() {
        $ah = new AliasHandler($_SESSION['username']);
        return $ah->hasStoreAndForward();
    }
}