<?php
/**
* This file is a part of the phpMussel package.
* Homepage: https://phpmussel.github.io/
*
* PHPMUSSEL COPYRIGHT 2013 AND BEYOND BY THE PHPMUSSEL TEAM.
*
* Authors:
* @see PEOPLE.md
*
* License: GNU/GPLv2
* @see LICENSE.txt
*
* This file: The loader (last modified: 2019.04.02).
*/
/**
* phpMussel should only be loaded once per PHP instance. To ensure this, we
* check for the existence of a "phpMussel" constant. If it doesn't exist, we
* define it and continue loading. If it already exists, we warn the client and
* kill the script.
*/
if (defined('phpMussel')) {
header('Content-Type: text/plain');
echo '[phpMussel] ' . (
isset($phpMussel['L10N']) ? $phpMussel['L10N']->getString('instance_already_active') : 'Instance already active! Please double-check your hooks.'
);
die;
}
define('phpMussel', true);
if (!version_compare(PHP_VERSION, '5.4.0', '>=')) {
header('Content-Type: text/plain');
die('[phpMussel] Not compatible with PHP versions below 5.4.0; Please update PHP in order to use phpMussel.');
}
/** Create an array for our working data. */
$phpMussel = [];
/** Determine the location of the "vault" directory. */
$phpMussel['Vault'] = __DIR__ . '/vault/';
/** Kill the script if we can't find the vault directory. */
if (!is_dir($phpMussel['Vault'])) {
header('Content-Type: text/plain');
die('[phpMussel] Vault directory not correctly set: Can\'t continue.');
}
/** Define the location of the "cache" directory. */
$phpMussel['cachePath'] = $phpMussel['Vault'] . 'cache/';
/** Define the location of the "lang" directory. */
$phpMussel['langPath'] = $phpMussel['Vault'] . 'lang/';
/** Define the location of the "plugins" directory. */
$phpMussel['pluginPath'] = $phpMussel['Vault'] . 'plugins/';
/** Define the location of the "quarantine" directory. */
$phpMussel['qfuPath'] = $phpMussel['Vault'] . 'quarantine/';
/** Define the location of the "signatures" directory. */
$phpMussel['sigPath'] = $phpMussel['Vault'] . 'signatures/';
/** Checks whether we're calling phpMussel directly or through a hook. */
$phpMussel['Direct'] = function () {
return (
!isset($_SERVER['SCRIPT_FILENAME']) ||
str_replace("\\", '/', strtolower(realpath($_SERVER['SCRIPT_FILENAME']))) === str_replace("\\", '/', strtolower(__FILE__))
);
};
/** Checks whether we're calling phpMussel through an alternative pathway (e.g., Cronable). */
$phpMussel['Alternate'] = (
class_exists('\Maikuolan\Cronable\Cronable')
);
/** Kill the script if the functions file doesn't exist. */
if (!file_exists($phpMussel['Vault'] . 'functions.php')) {
header('Content-Type: text/plain');
die('[phpMussel] Functions file missing! Please reinstall phpMussel.');
}
/** Load the functions file. */
require $phpMussel['Vault'] . 'functions.php';
/** Kill the script if the configuration handler doesn't exist. */
if (!file_exists($phpMussel['Vault'] . 'config.php')) {
header('Content-Type: text/plain');
die('[phpMussel] Configuration handler missing! Please reinstall phpMussel.');
}
/** Load the configuration handler. */
require $phpMussel['Vault'] . 'config.php';
/**
* Check whether the language handler exists; Kill the script if it
* doesn't.
*/
if (!file_exists($phpMussel['Vault'] . 'lang.php')) {
header('Content-Type: text/plain');
die('[phpMussel] Language handler missing! Please reinstall phpMussel.');
}
/** Load the language handler. */
require $phpMussel['Vault'] . 'lang.php';
/**
* Used to determine whether we've reached the end of this file without
* exiting cleanly (important for rendering scan results correctly).
*/
$phpMussel['EOF'] = false;
/** A safety feature for logging. */
$phpMussel['safety'] = "\x3c\x3fphp die; \x3f\x3e";
/**
* If phpMussel is "disabled" (if the "disable lock" is engaged), nothing
* within this block should execute (thus effectively disabling phpMussel).
*/
if (!$phpMussel['disable_lock'] = file_exists($phpMussel['Vault'] . 'disable.lck')) {
/** Plugins are detected and processed by phpMussel here. */
$phpMussel['MusselPlugins'] = ['hooks' => [], 'closures' => []];
if ($phpMussel['Config']['general']['enable_plugins']) {
if (!is_dir($phpMussel['Vault'] . 'plugins')) {
header('Content-Type: text/plain');
die('[phpMussel] ' . $phpMussel['L10N']->getString('plugins_directory_nonexistent'));
}
$phpMussel['MusselPlugins']['tempdata'] = [];
if ((
$phpMussel['MusselPlugins']['tempdata']['d'] = opendir($phpMussel['Vault'] . 'plugins')
) && is_resource($phpMussel['MusselPlugins']['tempdata']['d'])) {
while (true) {
$phpMussel['MusselPlugins']['tempdata']['f'] = readdir($phpMussel['MusselPlugins']['tempdata']['d']);
if (empty($phpMussel['MusselPlugins']['tempdata']['f'])) {
break;
}
if (
$phpMussel['MusselPlugins']['tempdata']['f'] !== '.' &&
$phpMussel['MusselPlugins']['tempdata']['f'] !== '..' &&
is_dir($phpMussel['pluginPath'] . $phpMussel['MusselPlugins']['tempdata']['f']) &&
file_exists($phpMussel['pluginPath'] . $phpMussel['MusselPlugins']['tempdata']['f'] . '/plugin.php') &&
!is_link($phpMussel['pluginPath'] . $phpMussel['MusselPlugins']['tempdata']['f'] . '/plugin.php')
) {
require_once $phpMussel['pluginPath'] . $phpMussel['MusselPlugins']['tempdata']['f'] . '/plugin.php';
}
}
closedir($phpMussel['MusselPlugins']['tempdata']['d']);
}
unset($phpMussel['MusselPlugins']['tempdata']);
}
/* This code block only executed if we're NOT in CLI mode (or if we're running via Cronable). */
if (!$phpMussel['Mussel_sapi'] || $phpMussel['Alternate']) {
/**
* Check whether the upload handler exists and attempt to load it.
*/
if (file_exists($phpMussel['Vault'] . 'upload.php') && !$phpMussel['Alternate']) {
require $phpMussel['Vault'] . 'upload.php';
}
/**
* Check whether the front-end handler exists and attempt to load
* it. Skip this check if front-end access is disabled.
*/
if (
!$phpMussel['Config']['general']['disable_frontend'] &&
file_exists($phpMussel['Vault'] . 'frontend.php') &&
($phpMussel['Direct']() || $phpMussel['Alternate'])
) {
require $phpMussel['Vault'] . 'frontend.php';
}
}
/** This code block only executed if we're in CLI mode. */
elseif (file_exists($phpMussel['Vault'] . 'cli.php')) {
require $phpMussel['Vault'] . 'cli.php';
}
}
if ($phpMussel['Config']['general']['cleanup']) {
/** Destroy unrequired plugin closures. */
if (isset($phpMussel['MusselPlugins']['closures'])) {
foreach ($phpMussel['MusselPlugins']['closures'] as $x) {
if (isset($$x) && is_object($$x)) {
unset($$x);
}
}
}
/** Unset our working data so that we can exit cleanly. */
unset($x, $phpMussel);
} else {
/** Let the script know that we haven't exited cleanly. */
$phpMussel['EOF'] = true;
}
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