<?php
  class IEM {  const VERSION = '6.0.2';  const DATABASE_VERSION = '20090916';  const SESSION_NAME = 'IEMSESSIONID';  final private function __construct() {  }  final static public function init($reset = false) { $GLOBALS['ApplicationUrl'] = SENDSTUDIO_APPLICATION_URL;     if (defined('SENDSTUDIO_IS_SETUP') && SENDSTUDIO_IS_SETUP && !InterspireEvent::eventExists('IEM_MARKER_20090701')) { IEM_Installer::RegisterEventListeners();  require_once IEM_ADDONS_PATH . '/interspire_addons.php'; $addons = new Interspire_Addons(); $addons->FixEnabledEventListeners(); InterspireEvent::eventCreate('IEM_MARKER_20090701'); } if (!self::configInit($reset)) { return false; } if (!self::sessionInit($reset)) { return false; } if (!self::userInit($reset)) { return false; }  $tempUser = IEM::getCurrentUser(); $tempUserLanguage = 'default'; if (!empty($tempUser->user_language) && is_dir(IEM_PATH ."/language/{$tempUser->user_language}")) { $tempUserLanguage = $tempUser->user_language; } require_once (IEM_PATH ."/language/{$tempUserLanguage}/whitelabel.php"); require_once (IEM_PATH ."/language/{$tempUserLanguage}/language.php"); self::$_enableInfoTips = false; if (isset($tempUser->infotips) && $tempUser->infotips) { self::$_enableInfoTips = true; } unset($tempUserLanguage); unset($tempUser);  }     static private $_configInitFlag = false;  static private $_configVariables = array();  static private $_enableInfoTips = false;  final static public function enableInfoTipsGet() { return intval(self::$_enableInfoTips); }  final static public function configInit($reset = false) { if (self::$_configInitFlag && !$reset) { return false; } self::$_configInitFlag = true; return true; }  final static public function configGet() { }  final static public function configSet() { }  final static public function configSave() { return true; }  final static public function configReset($values = array()) { }          static private $_sessionInitFlag = false;  static private $_sessionReference = false;  final static public function sessionInit($reset = false) {  if (self::$_sessionInitFlag && !$reset) { return false; } self::$_sessionInitFlag = true;   if (session_id()) { @session_write_close(); }  if (!defined('IEM_NO_SESSION') && !IEM_CLI_MODE) { session_name(IEM::SESSION_NAME); ini_set('session.use_cookies', 1); ini_set('session.gc_probability', 1); ini_set('session.gc_divisor', 100); ini_set('session.gc_maxlifetime', 3600); @session_start(); }  if (isset($_SESSION)) { self::$_sessionReference = &$_SESSION;    } else { self::$_sessionReference = array(); }  if (!array_key_exists('initialized', self::$_sessionReference)) { self::$_sessionReference = array( 'initialized' => true, 'storage' => array(), 'user' => array( ) ); } return true; }  final static public function sessionGet($variableName, $defaultValue = null) { if (array_key_exists($variableName, self::$_sessionReference['storage'])) { return self::$_sessionReference['storage'][$variableName]; } return $defaultValue; }  final static public function sessionSet($variableName, $value, $expiry = 0) { self::$_sessionReference['storage'][$variableName] = $value; return true; }  final static public function sessionRemove($variableName) { if (!array_key_exists($variableName, self::$_sessionReference['storage'])) { return false; } unset(self::$_sessionReference['storage'][$variableName]); return true; }  final static public function sessionReset($resetLogin = false) {   if (session_id() && !headers_sent()) { session_regenerate_id(); } self::$_sessionReference['storage'] = array(); self::$_sessionReference['user'] = array(); return true; }  final static public function sessionDestroy() { self::$_sessionReference = array(); if (session_id()) { @session_destroy(); } }  final static public function sessionID() { $id = session_id(); if (!$id) { return 'no_session_id_CLI'; } else { return $id; } }            static private $_userCacheObject = false;  static private $_userStack = array();  static private $_userInit = false;  final static public function userInit($reset = false) {  if (self::$_userInit && !$reset) { return false; } self::$_userInit = true;  self::$_userCacheObject = false; self::$_userStack = self::sessionGet('__IEM_SYSTEM_CurrentUser_Stack', array(), 'intval'); return true; }  final static public function userLogin($userid, $recordLastLogin = true, $clearStack = false) { $userid = intval($userid); if (empty($userid)) { return false; } $user = GetUser($userid); if (!$user) { return false; }  if ($recordLastLogin) { $rand_check = uniqid(true); $user->settings['LoginCheck'] = $rand_check; $user->SaveSettings(); $user->UpdateLoginTime(); } if ($clearStack) { self::$_userStack = array(); } self::$_userStack[] = $user->userid; self::$_userCacheObject = $user;  IEM::sessionReset(); IEM::sessionSet('__IEM_SYSTEM_CurrentUser_Stack', self::$_userStack);  return true; }  final static public function userLogout($compleLogout = false) { if (empty(self::$_userStack)) { return false; } if ($compleLogout) { self::$_userStack = array(); } else { array_pop(self::$_userStack); } self::userFlushCache(); return IEM::sessionSet('__IEM_SYSTEM_CurrentUser_Stack', self::$_userStack); }  final static public function userFlushCache() { self::$_userCacheObject = false; }  final static public function userGetStack($object = false) { }  final static public function userGetCurrent() { if (!self::$_userCacheObject instanceof Users_API ) { $userStack = self::$_userStack; if (empty($userStack)) { return false; } $userID = array_pop($userStack); $currentUser = new User_API($userID); if ($currentUser->userid != $userID) { return false; } self::$_userCacheObject = $currentUser; } return self::$_userCacheObject; }         static public function requestGetPOST($variableName, $defaultValue = '', $callback = null) { $value = $defaultValue; if (isset($_POST) && array_key_exists($variableName, $_POST)) { $value = $_POST[$variableName]; } return self::_requestProcess($value, $callback); }  static public function requestGetGET($variableName, $defaultValue = '', $callback = null) { $value = $defaultValue; if (isset($_GET) && array_key_exists($variableName, $_GET)) { $value = $_GET[$variableName]; } return self::_requestProcess($value, $callback); }  static public function requestGetCookie($cookieName, $devaultValue = '', $callback = null) { $value = $devaultValue; if (isset($_COOKIE) && array_key_exists($cookieName, $_COOKIE)) { $value = @unserialize(base64_decode($_COOKIE[$cookieName])); } return self::_requestProcess($value, $callback); }  static public function requestSetCookie($cookieName, $cookieValue, $expiry = 0) { $value = @serialize($cookieValue); if ($value === false) { return false; } $expiry = intval(abs($expiry)); if ($expiry != 0) { $expiry += time(); }  return @setcookie($cookieName, base64_encode($value), $expiry, '/'); }  static public function requestRemoveCookie($cookieName) { return @setcookie($cookieName, '', time() - 100000, '/'); }  static private function _requestProcess($variable, $callback = null) { if (empty($callback)) { return $variable; } if (is_array($variable)) { foreach ($variable as &$each) { $each = self::_requestProcess($each, $callback); } return $variable; } else { return $callback($variable); } }          static private $_langLoaded = array(); static public function langLoad($language) { $user = IEM::userGetCurrent(); $user_language = 'default'; $language = strtolower($language);  if (in_array($language, self::$_langLoaded)) { return true; }  if (!empty($user->user_language)) { $users_language = $user->user_language; }  if (empty($users_language) || !is_dir(IEM_PATH . "/language/{$users_language}")) { $users_language = 'default'; }  $langfile = IEM_PATH . "/language/{$users_language}/{$language}.php"; if (!is_file($langfile)) { trigger_error("No Language file for {$language} area", E_USER_WARNING); return false; } include_once $langfile;  self::$_langLoaded[] = $language; return true; } static public function langLoaded() { } static public function langGet($section, $name) { if (!self::langLoad($section)) { return $name; } return GetLang($name); }      final static public function getDatabase($overwriteDB = null) { static $db = null; static $characterset_defined = false; if (!is_null($overwriteDB) && ($overwriteDB instanceof Db)) { $db = $overwriteDB; } if (is_null($db)) { while (true) {   $required_constants = array('SENDSTUDIO_DATABASE_TYPE', 'SENDSTUDIO_DATABASE_HOST', 'SENDSTUDIO_DATABASE_USER', 'SENDSTUDIO_DATABASE_PASS', 'SENDSTUDIO_DATABASE_NAME'); $all_ok = false; foreach ($required_constants as $required) { if (!defined($required)) { break; } $all_ok = true; } if (!$all_ok) { break; }   try { $db = IEM_DBFACTORY::manufacture(SENDSTUDIO_DATABASE_TYPE, SENDSTUDIO_DATABASE_HOST, SENDSTUDIO_DATABASE_USER, SENDSTUDIO_DATABASE_PASS, SENDSTUDIO_DATABASE_NAME); $db->TablePrefix = SENDSTUDIO_TABLEPREFIX; } catch (Exception $e) { $db = false; break; } break; }  if (is_null($db)) { $db = false; } }  while (!$characterset_defined) {  if (is_null($db) || $db === false || !defined('SENDSTUDIO_DATABASE_TYPE')) { break; }  if (SENDSTUDIO_DATABASE_TYPE != 'mysql') { $characterset_defined = true; break; }  if (!defined('SENDSTUDIO_CHARSET')) { break; }  if (SENDSTUDIO_CHARSET != 'UTF-8') { $characterset_defined = true; break; }   if (!defined('SENDSTUDIO_DATABASE_UTF8PATCH')) { define('SENDSTUDIO_DATABASE_UTF8PATCH', false); }  if (!SENDSTUDIO_DATABASE_UTF8PATCH) { $characterset_defined = true; break; } $db->Query("SET NAMES 'utf8'"); $db->charset = 'utf8'; $characterset_defined = true; break; }  return $db; }  final static public function getCurrentUser() { return self::userGetCurrent(); }  final static public function logUserActivity($url, $icon = '', $text = '') { static $activitylog = null; if (is_null($activitylog)) { require_once IEM_PUBLIC_PATH . '/functions/api/useractivitylog.php'; $activitylog = new UserActivityLog_API(); } $status = $activitylog->LogActivity($url, $icon, $text); if (!$status) { trigger_error('Unable to log activity', E_USER_NOTICE); } }  final static public function urlFor($page, $params=array(), $relative=true) { $base_url = 'index.php'; if (!$relative) { $base_url = SENDSTUDIO_APPLICATION_URL . '/admin/' . $base_url; } $url = $base_url . '?Page=' . urlencode($page); if (is_array($params) && count($params)) { foreach ($params as $key=>$value) { $url .= '&' . urlencode($key) . '=' . urlencode($value); } } return $url; }  final static public function redirectTo($page, $params=array()) { $url = self::urlFor($page, $params, false); if (!headers_sent()) { header("Location: {$url}"); exit(); } echo "<script>window.location.href = '{$url}';</script>"; exit(); }  final static public function ifsetor(&$var, $default=null) { if (isset($var)) { $tmp = $var; } else { $tmp = $default; } return $tmp; }  final static public function encrypt($s, $key) { if (empty($s) || empty($key)) { return false; } while (strlen($key) < strlen($s)) { $key .= $key; } return $s ^ $key; }  final static public function decrypt($s, $key) {  return self::encrypt($s, $key); }  final static public function timeGetUserDisplayString($format = null, $time = null) { if (is_null($format)) { $format = GetLang('TimeFormat', 'F j Y, g:i a'); } if (is_null($time)) { $time = time(); } $offset = 0; $user = IEM::getCurrentUser(); if ($user instanceof User_API) { if (preg_match('/GMT(\-|\+)(\d+)\:(\d+)/', $user->usertimezone, $matches)) { list(, $tempSign, $tempHour, $tempMinute) = $matches; $offset = ($tempHour * 3600) + ($tempMinute * 60); if ($tempSign == '-') { $offset *= -1; } } if (preg_match('/(\-|\+)(\d+)\:(\d+)/', date('P'), $matches)) { list(, $tempSign, $tempHour, $tempMinute) = $matches; $tempOffset = ($tempHour * 3600) + ($tempMinute * 60); if ($tempSign == '-') { $tempOffset *= -1; } $offset -= $tempOffset; } } return date($format, ($time + $offset)); }   final static public function isInstalled() {  if (defined('SENDSTUDIO_IS_SETUP') && SENDSTUDIO_IS_SETUP) { return true; } $configFile = realpath(dirname(__FILE__) . '/../../includes/config.php'); $hasConfig = is_file($configFile);  if (!$hasConfig) { return false; }  return (bool) preg_match('/define/', file_get_contents($configFile)); }  final static public function hasUpgrade() { $db = IEM::getDatabase();  if (!$db) { return false; } $res = $db->Query('SELECT * FROM [|PREFIX|]settings;'); if (!$res) { return false; } $settings = $db->Fetch($res); $newVersion = (int) self::DATABASE_VERSION; $oldVersion = (int) $settings['database_version']; return $newVersion > $oldVersion; }  final static public function isInstalling() { if (!isset($_GET['Page'])) { return false; } $page = strtolower($_GET['Page']); return $page === 'install' || $page === 'installer'; }  final static public function isUpgrading() { if (!isset($_GET['Page'])) { return false; } return strtolower($_GET['Page']) === 'upgradenx'; }  final static public function isCompletingUpgrade() { return isset($_GET['Step']) && $_GET['Step'] == 3; } } class exceptionIEM extends Exception { }