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<?php
/**
* You are allowed to use this API in your web application.
*
* Copyright (C) 2018 by customweb GmbH
*
* This program is licenced under the customweb software licence. With the
* purchase or the installation of the software in your application you
* accept the licence agreement. The allowed usage is outlined in the
* customweb software licence which can be found under
* http://www.sellxed.com/en/software-license-agreement
*
* Any modification or distribution is strictly forbidden. The license
* grants you the installation in one application. For multiuse you will need
* to purchase further licences at http://www.sellxed.com/shop.
*
* See the customweb software licence agreement for more details.
*
*/
/**
*
* @author Thomas Hunziker
*/
final class Customweb_Core_Util_System {
private static $defaultTimeZone = null;
private static $defaultDateFormat = null;
private function __construct() {
}
public static function getDefaultTimeZone() {
if (self::$defaultTimeZone === null) {
return date_default_timezone_get();
}
else {
return self::$defaultTimeZone;
}
}
public static function setDefaultTimeZone($timeZone) {
self::$defaultTimeZone = $timeZone;
}
public static function getDefaultDateFormat() {
// TODO: Implement a better default value
if (self::$defaultDateFormat === null) {
return 'Y/m/d';
}
else {
return self::$defaultDateFormat;
}
}
public static function getDefaultDateTimeFormat() {
return self::getDefaultDateFormat() . ' G:i:s';
}
public static function setDefaultDateFormat($format) {
self::$defaultDateFormat = $format;
}
/**
*
* @return string
*/
public static function getTemporaryDirPath() {
return rtrim(sys_get_temp_dir(), DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
}
/**
* Returns the IP address of the client connected to the
* server. In case a proxy is used the method tries to find
* the correct IP address.
*
* @throws Exception
* @deprecated Use instead always the provided request object
* @return string
*/
public static function getClientIPAddress(){
return Customweb_Core_Http_ContextRequest::getClientIPAddress();
}
/**
* Returns the max execution time of the current request.
*
* @return number
*/
public static function getMaxExecutionTime() {
$maxExecutionTime = ini_get('max_execution_time');
// Returns the default value, in case the ini_get fails.
if ($maxExecutionTime === null || empty($maxExecutionTime) || $maxExecutionTime < 0) {
return 30;
}
else {
return intval($maxExecutionTime);
}
}
/**
* Returns the unix timestamp of the script execution start time.
*
* @return number
*/
public static function getScriptStartTime() {
// TODO: Add here a better approach to get the time.
if (isset($_SERVER['REQUEST_TIME'])) {
return $_SERVER['REQUEST_TIME'];
}
else {
return time();
}
}
/**
* This method returns the maximal script execution time.
*
* @return number Unix time stamp, when the script will be killed.
*/
public static function getScriptExecutionEndTime() {
return self::getScriptStartTime() + self::getMaxExecutionTime();
}
/**
* This method returns the position at which the compiler halts with compilation.
*
* @param string $file Path to the file.
* @throws Exception
* @return number
*/
public static function getCompilerHaltOffset($file) {
if (defined('__COMPILER_HALT_OFFSET__')) {
return __COMPILER_HALT_OFFSET__;
}
$handle = fopen($file, 'r');
$buffer = '';
while (false !== ($char = fgetc($handle))) {
$buffer .= $char;
if ($buffer == '__halt_compiler();') {
return ftell($handle);
} elseif (strpos('__halt_compiler();', $buffer) !== 0) {
$buffer = '';
}
}
throw new Exception('__halt_compiler() not found.');
}
/**
* Returns the URL of the current request.
*
* @return string
* @deprecated Use instead the provided request object.
*/
public static function getRequestUrl() {
$protocol = 'http';
if (isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on") {
$protocol = 'https';
}
$port = ($_SERVER["SERVER_PORT"] == "80") ? "" : (":".$_SERVER["SERVER_PORT"]);
return $protocol . "://" . self::getRequestHost() . $port . $_SERVER['REQUEST_URI'];
}
/**
* Returns the host of the current request.
*
* @return string
* @deprecated Use instead the provided request object.
*/
public static function getRequestHost() {
if (isset($_SERVER['HTTP_X_FORWARDED_HOST']) && !empty($_SERVER['HTTP_X_FORWARDED_HOST'])) {
$host = $_SERVER['HTTP_X_FORWARDED_HOST'];
$elements = explode(',', $host);
$host = trim(end($elements));
}
else {
if (isset($_SERVER['HTTP_HOST']) && !empty($_SERVER['HTTP_HOST'])) {
$host = $_SERVER['HTTP_HOST'];
}
else {
if (isset($_SERVER['SERVER_NAME']) && !empty($_SERVER['SERVER_NAME'])) {
$host = $_SERVER['SERVER_NAME'];
}
else {
if (isset($_SERVER['SERVER_ADDR']) && !empty($_SERVER['SERVER_ADDR'])) {
$host = $_SERVER['SERVER_ADDR'];
}
else {
$host = '';
}
}
}
}
// Remove port number from host
$host = preg_replace('/:\d+$/', '', $host);
return trim($host);
}
/**
* Clears the output buffer. Prevents any error reporting.
*/
public static function clearOutputBuffer() {
set_error_handler(array('Customweb_Core_Util_System', 'voidErrors'));
ob_end_clean();
restore_error_handler();
}
public static function voidErrors() {
}
}