index_wp.php

<?php
/*
 * This file is part of Uncovery Minecraft.
 * Copyright (C) 2015 uncovery.me
 *
 * Uncovery Minecraft is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of  MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/*
 * This file is the entry point for the code when called through wordpress.
 * It also manages direct functon calls via URL, such as the 2D map and others.s
 */

global $UMC_USER, $UMC_ENV, $UMC_USERS;

// do not process any functions if we have a 404 error;
if (function_exists('is_404') && is_404()) {
    return;
}

require_once(__DIR__ . '/core_include.php');

$s_get = filter_input_array(INPUT_GET, FILTER_SANITIZE_STRING);
$s_post  = filter_input_array(INPUT_POST, FILTER_SANITIZE_STRING);

if (isset($s_get['function']) && function_exists('umc_'.$s_get['function'])) {
    umc_function_call($s_get['function']);
} else if (isset($s_post['function']) && function_exists('umc_'.$s_post['function'])) {
    umc_function_call($s_post['function']);
} /* else if (isset($s_get['function']) && !function_exists('umc_'.$s_get['function'])){
    XMPP_ERROR_send_msg("Could not load function {$s_get['function']}");
}
 */

if (!$UMC_ENV) {
    umc_set_environment();
}

/**
 * Verify that an externally called function is actually a vaild, no-risk function call.
 *
 * $UMC_FUNCTIONS is defined in all the files where the respective function is located
 *
 * @global type $UMC_FUNCTIONS
 * @param type $function
 */
function umc_function_call($function) {
    global $UMC_FUNCTIONS;

    // we check if the function is in the list of known functions
    if (!isset($UMC_FUNCTIONS[$function])) {
        // if not, send a warning so that it can be included for the future
        XMPP_ERROR_send_msg("Unverified function call '$function'");
        $function_name = 'umc_' . $function;
    } else {
        // if yes, all fine, get proper function name
        $function_name = $UMC_FUNCTIONS[$function];
    }
    // execute code
    echo $function_name();
}