/**
* Get value of HTTP cookie from the current HTTP request
*
* Return the value of a cookie from the current HTTP request,
* or return NULL if cookie does not exist. Cookies created during
* the current request will not be available until the next request.
*
* @param string $name
* @param bool $deleteIfInvalid doing delete if invalid
* @param bool $encrypted use force encryped to set true if encrypted
* without following config
* set to false if use no encryption
* @return string|null
*/
public static function get($name, $deleteIfInvalid = false, $encrypted = null)
{
// Get cookie value
$cookies = Request::cookies();
$value = $cookies->get($name);
$config = Config::singleton();
$prefix = $config->get('cookie_encrypt_prefix', 'enc|');
is_string($prefix) && trim($prefix) || ($prefix = 'enc|');
// Decode if encrypted
if (($config->get('cookie_encrypt', true) && $encrypted !== false || $encrypted) && strpos($value, $prefix) === 0) {
$value = Security::decrypt($value, sha1($config->security_key . $config->security_salt . $config->session_hash));
if ($value === null && $deleteIfInvalid) {
static::deleteCookie($name);
}
}
return $value;
}
/**
* Serialize Response cookies into raw HTTP header
*
* @param \Enproject\ErSysDucation\Response\Header $header The Response header
*/
public static function serializeCookies(Headers &$header)
{
$instance = static::singleton();
$config = Config::singleton();
$cookies = $instance->cookies();
$prefix = $config->get('cookie_encrypt_prefix', 'enc|');
is_string($prefix) && trim($prefix) || ($prefix = 'enc|');
$config->cookie_encrypt = $config->get('cookie_encrypt', true);
foreach ($cookies as $name => $settings) {
if (is_string($settings['expires'])) {
$expires = strtotime($settings['expires']);
} else {
$expires = (int) $settings['expires'];
}
/**
* Check if is has encrypted value
* if config cookie encrypt has true
* and
* (__ settings['encrypted'] = has null or not exists)
* or not empty $settings['encrypted']
* @var boolean
*/
if (!empty($settings['encrypted']) || $config->cookie_encrypt && !isset($settings['encrypted'])) {
// add prefix enc to make sure if cookie has encrypt
$settings['value'] = $prefix . Security::encrypt($settings['value'], Sha1::hash($config->security_key . $config->security_salt . $config->session_hash));
}
/**
* Cookie only accept 4KB
*/
if (strlen($settings['value']) > 4096) {
ErrorHandler::set(E_USER_WARNING, sprintf('Cookie %s has been generate more than 4KB failed to save! if there was cookie before, it will be not replaced!', $name), __FILE__, __LINE__);
} else {
// set header cookies
static::setCookieHeader($header, $name, $settings);
}
}
}
