org.mariadb.jdbc.plugin.authentication.AuthenticationPluginLoader Maven / Gradle / Ivy
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (c) 2012-2014 Monty Program Ab
// Copyright (c) 2015-2021 MariaDB Corporation Ab
package org.mariadb.jdbc.plugin.authentication;
import java.sql.SQLException;
import java.util.Arrays;
import java.util.ServiceLoader;
import org.mariadb.jdbc.Configuration;
import org.mariadb.jdbc.Driver;
import org.mariadb.jdbc.plugin.AuthenticationPlugin;
/** permit loading authentication plugins */
public final class AuthenticationPluginLoader {
/**
* Get authentication plugin from type String. Customs authentication plugin can be added
* implementing AuthenticationPlugin and registering new type in resources services.
*
* @param type authentication plugin type
* @param conf current configuration
* @return Authentication plugin corresponding to type
* @throws SQLException if no authentication plugin in classpath have indicated type
*/
public static AuthenticationPlugin get(String type, Configuration conf) throws SQLException {
ServiceLoader loader =
ServiceLoader.load(AuthenticationPlugin.class, Driver.class.getClassLoader());
String[] authList = (conf.restrictedAuth() != null) ? conf.restrictedAuth().split(",") : null;
for (AuthenticationPlugin implClass : loader) {
if (type.equals(implClass.type())) {
if (conf.restrictedAuth() == null || Arrays.stream(authList).anyMatch(type::contains)) {
return implClass;
} else {
throw new SQLException(
String.format(
"Client restrict authentication plugin to a limited set of authentication plugin and doesn't permit requested plugin ('%s'). "
+ "Current list is `restrictedAuth=%s`",
type, conf.restrictedAuth()),
"08004",
1251);
}
}
}
throw new SQLException(
"Client does not support authentication protocol requested by server. "
+ "plugin type was = '"
+ type
+ "'",
"08004",
1251);
}
}