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<?php
require_once __DIR__ . "/vendor/autoload.php";
use Jumbojett\OpenIDConnectClient;
class Auth_OIDC extends Auth_Base {
/** redirect user to this URL after logout; .env:
* TTRSS_AUTH_OIDC_POST_LOGOUT_URL=http://127.0.0.1/logout-redirect
*/
const AUTH_OIDC_POST_LOGOUT_URL = "AUTH_OIDC_POST_LOGOUT_URL";
const AUTH_OIDC_NAME = "AUTH_OIDC_NAME";
const AUTH_OIDC_URL = "AUTH_OIDC_URL";
const AUTH_OIDC_CLIENT_ID = "AUTH_OIDC_CLIENT_ID";
const AUTH_OIDC_CLIENT_SECRET = "AUTH_OIDC_CLIENT_SECRET";
// in seconds
const AUTH_OIDC_VALIDATE_INTERVAL = "AUTH_OIDC_VALIDATE_INTERVAL";
/** @var PluginHost $host */
private $host;
function about() {
return array(null,
"Authenticates against configured OIDC provider",
"fox",
true);
}
function init($host) {
Config::add(self::AUTH_OIDC_POST_LOGOUT_URL, "", Config::T_STRING);
Config::add(self::AUTH_OIDC_NAME, "", Config::T_STRING);
Config::add(self::AUTH_OIDC_URL, "", Config::T_STRING);
Config::add(self::AUTH_OIDC_CLIENT_ID, "", Config::T_STRING);
Config::add(self::AUTH_OIDC_CLIENT_SECRET, "", Config::T_STRING);
Config::add(self::AUTH_OIDC_VALIDATE_INTERVAL, "3600", Config::T_INT);
if (Config::get(self::AUTH_OIDC_URL)) {
$host->add_hook($host::HOOK_AUTH_USER, $this);
$host->add_hook($host::HOOK_LOGINFORM_ADDITIONAL_BUTTONS, $this);
$host->add_hook($host::HOOK_VALIDATE_SESSION, $this);
if (Config::get(self::AUTH_OIDC_POST_LOGOUT_URL) != "")
$host->add_hook($host::HOOK_POST_LOGOUT, $this);
}
$this->host = $host;
}
function is_public_method($method) {
return $method == "oidc_login";
}
public function oidc_login() : void {
$oidc = new OpenIDConnectClient(Config::get(self::AUTH_OIDC_URL),
Config::get(self::AUTH_OIDC_CLIENT_ID),
Config::get(self::AUTH_OIDC_CLIENT_SECRET));
$oidc->setRedirectURL(Config::get_self_url());
$oidc->addScope(['openid', 'profile', 'email']);
$oidc->authenticate();
}
function authenticate($login, $password, $service = '') {
if (!($_SESSION['uid'] ?? false) && ($_REQUEST['code'] ?? false)) {
$oidc = new OpenIDConnectClient(Config::get(self::AUTH_OIDC_URL),
Config::get(self::AUTH_OIDC_CLIENT_ID),
Config::get(self::AUTH_OIDC_CLIENT_SECRET));
try {
$oidc->setRedirectURL(Config::get_self_url());
$oidc->addScope(['openid', 'profile', 'email']);
$oidc->authenticate();
$login = $oidc->requestUserInfo("preferred_username");
$user_id = $this->auto_create_user($login, $password);
if ($user_id) {
$name = $oidc->requestUserInfo("name");
if ($name) {
$sth = $this->pdo->prepare("UPDATE ttrss_users SET full_name = ? WHERE id = ?");
$sth->execute([$name, $user_id]);
}
$email = $oidc->requestUserInfo("email");
if ($email) {
$sth = $this->pdo->prepare("UPDATE ttrss_users SET email = ? WHERE id = ?");
$sth->execute([$email, $user_id]);
}
}
$_SESSION["auth_oidc:refresh_token"] = $oidc->getRefreshToken();
$_SESSION["auth_oidc:refresh_token_last_check"] = time();
return $user_id;
} catch (Exception $e) {
$_SESSION["login_error_msg"] = 'OIDC: ' . $e->getMessage();
}
}
return false;
}
function hook_validate_session(): bool {
$refresh_token = $_SESSION["auth_oidc:refresh_token"] ?? false;
if ($refresh_token && $_SESSION["auth_oidc:refresh_token_last_check"] < time() - Config::get(self::AUTH_OIDC_VALIDATE_INTERVAL)) {
$oidc = new OpenIDConnectClient(Config::get(self::AUTH_OIDC_URL),
Config::get(self::AUTH_OIDC_CLIENT_ID),
Config::get(self::AUTH_OIDC_CLIENT_SECRET));
try {
$result = $oidc->introspectToken($refresh_token);
if ($result->active)
$_SESSION["auth_oidc:refresh_token_last_check"] = time();
return $result->active;
} catch (Exception $e) {
$_SESSION["login_error_msg"] = 'OIDC: ' . $e->getMessage();
return false;
}
}
return true;
}
function get_login_js() {
return file_get_contents(__DIR__ . "/init.js");
}
function hook_loginform_additional_buttons() {
print \Controls\button_tag(T_sprintf('Log in with %s', Config::get(self::AUTH_OIDC_NAME)), '',
['class' => '', 'onclick' => 'Plugins.Auth_OIDC.login("'.htmlspecialchars($this->host->get_public_method_url($this, "oidc_login")).'")']);
}
function hook_post_logout($login, $user_id) {
return [
Config::get(self::AUTH_OIDC_POST_LOGOUT_URL)
];
}
function api_version() {
return 2;
}
}
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