AuthenticatorManager.java

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
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// specific language governing permissions and limitations
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package org.apache.doris.mysql.authenticate;

import org.apache.doris.mysql.MysqlAuthPacket;
import org.apache.doris.mysql.MysqlChannel;
import org.apache.doris.mysql.MysqlHandshakePacket;
import org.apache.doris.mysql.MysqlProto;
import org.apache.doris.mysql.MysqlSerializer;
import org.apache.doris.mysql.authenticate.ldap.LdapAuthenticator;
import org.apache.doris.mysql.authenticate.password.Password;
import org.apache.doris.qe.ConnectContext;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import java.io.IOException;
import java.util.Optional;

public class AuthenticatorManager {
    private static final Logger LOG = LogManager.getLogger(AuthenticatorManager.class);

    private Authenticator defaultAuthenticator;
    private Authenticator authTypeAuthenticator;

    public AuthenticatorManager(AuthenticateType type) {
        LOG.info("authenticate type: {}", type);
        this.defaultAuthenticator = new DefaultAuthenticator();
        switch (type) {
            case LDAP:
                this.authTypeAuthenticator = new LdapAuthenticator();
                break;
            case DEFAULT:
            default:
                this.authTypeAuthenticator = defaultAuthenticator;
                break;
        }
    }

    public boolean authenticate(ConnectContext context,
            String userName,
            MysqlChannel channel,
            MysqlSerializer serializer,
            MysqlAuthPacket authPacket,
            MysqlHandshakePacket handshakePacket) throws IOException {
        Authenticator authenticator = chooseAuthenticator(userName);
        Optional<Password> password = authenticator.getPasswordResolver()
                .resolvePassword(context, channel, serializer, authPacket, handshakePacket);
        if (!password.isPresent()) {
            return false;
        }
        String remoteIp = context.getMysqlChannel().getRemoteIp();
        AuthenticateRequest request = new AuthenticateRequest(userName, password.get(), remoteIp);
        AuthenticateResponse response = authenticator.authenticate(request);
        if (!response.isSuccess()) {
            MysqlProto.sendResponsePacket(context);
            return false;
        }
        context.setCurrentUserIdentity(response.getUserIdentity());
        context.setRemoteIP(remoteIp);
        context.setIsTempUser(response.isTemp());
        return true;
    }

    private Authenticator chooseAuthenticator(String userName) {
        return authTypeAuthenticator.canDeal(userName) ? authTypeAuthenticator : defaultAuthenticator;
    }
}