WebAppTemplate/action.php

<?php

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/**
 * Make things happen when buttons are pressed and forms submitted.
 */
require_once __DIR__ . "/required.php";

if ($VARS['action'] !== "signout") {
    dieifnotloggedin();
}

/**
 * Redirects back to the page ID in $_POST/$_GET['source'] with the given message ID.
 * The message will be displayed by the app.
 * @param string $msg message ID (see lang/messages.php)
 * @param string $arg If set, replaces "{arg}" in the message string when displayed to the user.
 */
function returnToSender($msg, $arg = "") {
    global $VARS;
    $header = "Location: app.php?page=" . urlencode($VARS['source']) . "&msg=$msg";
    if ($arg != "") {
        $header .= "&arg=$arg";
    }
    header($header);
    die();
}

switch ($VARS['action']) {
    case "signout":
        session_destroy();
        header('Location: index.php?logout=1');
        die("Logged out.");
}