static function IsMcryptAvailable()
{
if (!is_bool(self::$mcryptavailable)) {
self::$mcryptavailable = function_exists("mcrypt_module_open") && in_array("rijndael-128", mcrypt_list_algorithms());
}
return self::$mcryptavailable;
}
public function SaveUserInfo($usedb = false)
{
if ($this->user_cache["changed"]) {
$cdata = array("c" => $this->user_cache["ts"], "s" => $this->user_info["sso_id"], "i" => $this->user_info["id"], "e" => $this->user_info["extra"]);
if (count($this->user_info["tag_map"])) {
$cdata["t"] = $this->user_info["tag_map"];
foreach ($cdata["t"] as $key => $val) {
$cdata["t"][$key] = 1;
}
}
if ($this->user_info["admin"]) {
$cdata["a"] = 1;
}
if ($usedb && $this->user_cache["hasdb"]) {
$cdata["b"] = 1;
}
if (count($this->user_cache["data"])) {
$cdata["d"] = $this->user_cache["data"];
}
$cdata["p"] = $this->user_cache["ipaddr"];
$cdata = @json_encode($cdata);
if (function_exists("gzcompress") && function_exists("gzuncompress")) {
$cdata = "1:" . @gzcompress($cdata);
} else {
$cdata = "0:" . $cdata;
}
$vdata = hash_hmac("sha1", $cdata . ":" . SSO_SERVER_APIKEY, pack("H*", SSO_CLIENT_RAND_SEED6), true);
$vdata = str_replace(array("+", "/", "="), array("-", "_", ""), base64_encode($vdata));
$mode = SSO_COOKIE_CIPHER == "aes256" ? "aes256" : "blowfish";
$key = pack("H*", SSO_CLIENT_RAND_SEED);
$options = array("prefix" => $this->rng->GenerateToken(), "mode" => "CBC", "iv" => pack("H*", SSO_CLIENT_RAND_SEED2), "lightweight" => true);
if (SSO_COOKIE_DUAL_ENCRYPT) {
$options["key2"] = pack("H*", SSO_CLIENT_RAND_SEED4);
$options["iv2"] = pack("H*", SSO_CLIENT_RAND_SEED5);
}
if ($mode == "aes256") {
$cdata = SSO_ExtendedAES::CreateDataPacket($cdata, $key, $options);
} else {
$cdata = SSO_Blowfish::CreateDataPacket($cdata, $key, $options);
}
$cdata = str_replace(array("+", "/", "="), array("-", "_", ""), base64_encode($cdata));
if (!isset($this->request[SSO_COOKIE_NAME . "_c"])) {
$this->SetCookieFixDomain(SSO_COOKIE_NAME . "_c", "1", 0, SSO_COOKIE_PATH, "", SSO_COOKIE_SSL_ONLY);
}
if (!isset($this->request[SSO_COOKIE_NAME . "_s"]) || $this->request[SSO_COOKIE_NAME . "_s"] != $cdata) {
$this->SetCookieFixDomain(SSO_COOKIE_NAME . "_s", $cdata, SSO_COOKIE_TIMEOUT > 0 ? time() + SSO_COOKIE_TIMEOUT : 0, SSO_COOKIE_PATH, "", SSO_COOKIE_SSL_ONLY, true);
}
if (!isset($this->request[SSO_COOKIE_NAME . "_v"]) || $this->request[SSO_COOKIE_NAME . "_v"] != $vdata) {
$this->SetCookieFixDomain(SSO_COOKIE_NAME . "_v", $vdata, SSO_COOKIE_TIMEOUT > 0 && !SSO_COOKIE_EXIT_TIMEOUT ? time() + SSO_COOKIE_TIMEOUT : 0, SSO_COOKIE_PATH, "", SSO_COOKIE_SSL_ONLY, true);
}
$this->user_cache["changed"] = false;
}
}