// 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
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
package com.cloud.agent.manager.authn.impl;

import java.util.Map;

import javax.ejb.Local;
import javax.inject.Inject;
import javax.naming.ConfigurationException;

import org.apache.log4j.Logger;
import org.springframework.stereotype.Component;

import com.cloud.agent.AgentManager;
import com.cloud.agent.StartupCommandProcessor;
import com.cloud.agent.api.StartupCommand;
import com.cloud.agent.manager.authn.AgentAuthnException;
import com.cloud.agent.manager.authn.AgentAuthorizer;
import com.cloud.configuration.dao.ConfigurationDao;
import com.cloud.exception.ConnectionException;
import com.cloud.host.dao.HostDao;
import com.cloud.utils.component.AdapterBase;

@Component
@Local(value={AgentAuthorizer.class, StartupCommandProcessor.class})
public class BasicAgentAuthManager extends AdapterBase implements AgentAuthorizer, StartupCommandProcessor {
    private static final Logger s_logger = Logger.getLogger(BasicAgentAuthManager.class);
    @Inject HostDao _hostDao = null;
    @Inject ConfigurationDao _configDao = null;
    @Inject AgentManager _agentManager = null;
    
    @Override
    public boolean processInitialConnect(StartupCommand[] cmd)
            throws ConnectionException {
        try {
            authorizeAgent(cmd);
        } catch (AgentAuthnException e) {
            throw new ConnectionException(true, "Failed to authenticate/authorize", e);
        }
        s_logger.debug("Authorized agent with guid " + cmd[0].getGuid());
        return false;//so that the next host creator can process it
    }

    @Override
    public boolean authorizeAgent(StartupCommand[] cmd) throws AgentAuthnException{
        return true;
    }

    @Override
    public boolean configure(String name, Map<String, Object> params)
            throws ConfigurationException {
        _agentManager.registerForInitialConnects(this, true);
        return true;
    }
}
