216 lines
8.2 KiB
PHP
216 lines
8.2 KiB
PHP
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<?php
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/**
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* This file is a part of the phpMussel package.
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* Homepage: https://phpmussel.github.io/
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*
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* PHPMUSSEL COPYRIGHT 2013 AND BEYOND BY THE PHPMUSSEL TEAM.
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*
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* Authors:
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* @see PEOPLE.md
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*
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* License: GNU/GPLv2
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* @see LICENSE.txt
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*
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* This file: The loader (last modified: 2017.10.26).
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*/
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/**
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* phpMussel should only be loaded once per PHP instance. To ensure this, we
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* check for the existence of a "phpMussel" constant. If it doesn't exist, we
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* define it and continue loading. If it already exists, we warn the client and
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* kill the script.
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*/
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if (!defined('phpMussel')) {
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define('phpMussel', true);
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if (!version_compare(PHP_VERSION, '5.4.0', '>=')) {
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header('Content-Type: text/plain');
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die('[phpMussel] Not compatible with PHP versions below 5.4.0; Please update PHP in order to use phpMussel.');
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}
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/** Create an array for our working data. */
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$phpMussel = array();
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/** Determine the location of the "vault" directory. */
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$phpMussel['Vault'] = __DIR__ . '/vault/';
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/** Kill the script if we can't find the vault directory. */
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if (!is_dir($phpMussel['Vault'])) {
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header('Content-Type: text/plain');
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die(
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'[phpMussel] Vault directory not correctly set: Can\'t continue.' .
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' Refer to documentation if this is a first-time run, and if pro' .
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'blems persist, seek assistance.'
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);
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}
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/** Define the location of the "cache" directory. */
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$phpMussel['cachePath'] = $phpMussel['Vault'] . 'cache/';
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/** Define the location of the "lang" directory. */
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$phpMussel['langPath'] = $phpMussel['Vault'] . 'lang/';
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/** Define the location of the "plugins" directory. */
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$phpMussel['pluginPath'] = $phpMussel['Vault'] . 'plugins/';
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/** Define the location of the "quarantine" directory. */
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$phpMussel['qfuPath'] = $phpMussel['Vault'] . 'quarantine/';
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/** Define the location of the "signatures" directory. */
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$phpMussel['sigPath'] = $phpMussel['Vault'] . 'signatures/';
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/** Checks whether we're calling phpMussel directly or through a hook. */
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$phpMussel['Direct'] = function () {
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return (str_replace("\\", '/', strtolower($_SERVER['SCRIPT_FILENAME'])) === str_replace("\\", '/', strtolower(__FILE__)));
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};
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/** Kill the script if the functions file doesn't exist. */
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if (!file_exists($phpMussel['Vault'] . 'functions.php')) {
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header('Content-Type: text/plain');
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die('[phpMussel] Functions file missing! Please reinstall phpMussel.');
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}
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/** Load the functions file. */
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require $phpMussel['Vault'] . 'functions.php';
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/** Kill the script if the configuration handler doesn't exist. */
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if (!file_exists($phpMussel['Vault'] . 'config.php')) {
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header('Content-Type: text/plain');
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die('[phpMussel] Configuration handler missing! Please reinstall phpMussel.');
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}
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/** Load the configuration handler. */
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require $phpMussel['Vault'] . 'config.php';
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/**
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* Check whether the language handler exists; Kill the script if it
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* doesn't.
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*/
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if (!file_exists($phpMussel['Vault'] . 'lang.php')) {
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header('Content-Type: text/plain');
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die('[phpMussel] Language handler missing! Please reinstall phpMussel.');
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}
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/** Load the language handler. */
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require $phpMussel['Vault'] . 'lang.php';
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/** PHP binary version-specific switch variables. */
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$phpMussel['binary_versions'] = array(
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'7.0.0' => version_compare(PHP_VERSION, '7.0.0', '>='),
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'5.6.0' => version_compare(PHP_VERSION, '5.6.0', '>=')
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);
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/**
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* Create an array to use as a temporary memory cache for scanning
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* operations (note: this has nothing to do with the memCache extension of
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* PHP; the variable name is coincidental).
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*/
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$phpMussel['memCache'] = array();
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/**
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* Used to determine whether we've reached the end of this file without
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* exiting cleanly (important for rendering scan results correctly).
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*/
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$phpMussel['EOF'] = false;
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/** A safety feature for logging. */
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$phpMussel['safety'] = "\x3c\x3fphp die; \x3f\x3e";
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/**
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* If phpMussel is "disabled" (if the "disable lock" is engaged), nothing
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* within this block should execute (thus effectively disabling phpMussel).
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*/
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if (!$phpMussel['disable_lock'] = file_exists($phpMussel['Vault'] . 'disable.lck')) {
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/** Plugins are detected and processed by phpMussel here. */
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$phpMussel['MusselPlugins'] = array('hooks' => array(), 'closures' => array());
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if ($phpMussel['Config']['general']['enable_plugins']) {
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if (!is_dir($phpMussel['Vault'] . 'plugins')) {
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header('Content-Type: text/plain');
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die('[phpMussel] ' . $phpMussel['Config']['lang']['plugins_directory_nonexistent']);
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}
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$phpMussel['MusselPlugins']['tempdata'] = array();
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if ((
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$phpMussel['MusselPlugins']['tempdata']['d'] = opendir($phpMussel['Vault'] . 'plugins')
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) && is_resource($phpMussel['MusselPlugins']['tempdata']['d'])) {
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while (true) {
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$phpMussel['MusselPlugins']['tempdata']['f'] = readdir($phpMussel['MusselPlugins']['tempdata']['d']);
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if (empty($phpMussel['MusselPlugins']['tempdata']['f'])) {
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break;
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}
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if (
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$phpMussel['MusselPlugins']['tempdata']['f'] !== '.' &&
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$phpMussel['MusselPlugins']['tempdata']['f'] !== '..' &&
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is_dir($phpMussel['pluginPath'] . $phpMussel['MusselPlugins']['tempdata']['f']) &&
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file_exists($phpMussel['pluginPath'] . $phpMussel['MusselPlugins']['tempdata']['f'] . '/plugin.php') &&
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!is_link($phpMussel['pluginPath'] . $phpMussel['MusselPlugins']['tempdata']['f'] . '/plugin.php')
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) {
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require_once $phpMussel['pluginPath'] . $phpMussel['MusselPlugins']['tempdata']['f'] . '/plugin.php';
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}
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}
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closedir($phpMussel['MusselPlugins']['tempdata']['d']);
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}
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unset($phpMussel['MusselPlugins']['tempdata']);
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}
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/* This code block only executed if we're NOT in CLI mode. */
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if (!$phpMussel['Mussel_sapi']) {
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/**
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* Check whether the upload handler exists and attempt to load it.
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*/
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if (file_exists($phpMussel['Vault'] . 'upload.php')) {
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require $phpMussel['Vault'] . 'upload.php';
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}
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/**
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* Check whether the front-end handler exists and attempt to load
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* it. Skip this check if front-end access is disabled.
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*/
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if (
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!$phpMussel['Config']['general']['disable_frontend'] &&
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file_exists($phpMussel['Vault'] . 'frontend.php') &&
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$phpMussel['Direct']()
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) {
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require $phpMussel['Vault'] . 'frontend.php';
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}
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}
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/**
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* Check whether the CLI handler exists and attempt to load it.
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* This code block only executed if we're in CLI mode.
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*/
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elseif (file_exists($phpMussel['Vault'] . 'cli.php')) {
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require $phpMussel['Vault'] . 'cli.php';
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}
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}
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if ($phpMussel['Config']['general']['cleanup']) {
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/** Destroy unrequired plugin closures. */
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if (isset($phpMussel['MusselPlugins']['closures'])) {
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foreach ($phpMussel['MusselPlugins']['closures'] as $x) {
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if (isset($$x) && is_object($$x)) {
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unset($$x);
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}
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}
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}
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/** Unset our working data so that we can exit cleanly. */
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unset($x, $phpMussel);
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} else {
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/** Let the script know that we haven't exited cleanly. */
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$phpMussel['EOF'] = true;
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}
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} else {
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header('Content-Type: text/plain');
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echo
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(!isset($phpMussel['Config']['lang']['instance_already_active'])) ?
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'[phpMussel] Instance already active! Please double-check your hooks.' :
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'[phpMussel] ' . $phpMussel['Config']['lang']['instance_already_active'];
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die;
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}
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