content: /*
   *  Copyright Beijing 58 Information Technology Co.,Ltd.
   *
   *  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.bj58.spat.gaea.server.filter;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  import com.bj58.spat.gaea.protocol.sfp.v1.Protocol;
  import com.bj58.spat.gaea.server.contract.context.Global;
  import com.bj58.spat.gaea.server.contract.context.GaeaContext;
  import com.bj58.spat.gaea.server.contract.context.GaeaResponse;
  import com.bj58.spat.gaea.server.contract.context.SecureContext;
  import com.bj58.spat.gaea.server.contract.context.ServerType;
  import com.bj58.spat.gaea.server.contract.filter.IFilter;
  
  /**
   * A filter for create protocol from byte[]
   * 
   * @author Service Platform Architecture Team (spat@58.com)
   */
  public class ProtocolCreateFilter implements IFilter {
  	
  	private static final Log logger = LogFactory.getLog(ProtocolCreateFilter.class);
  	
  	@Override
  	public void filter(GaeaContext context) throws Exception {
  		try{
  			if(context.getServerType() == ServerType.TCP) {
  				Protocol protocol = context.getGaeaRequest().getProtocol();
  				byte[] desKeyByte = null;
  				String desKeyStr = null;
  				boolean bool = false;
  				
  				Global global = Global.getSingleton();
  				if(global != null){
  					//判断当前服务启用权限认证
  					if(global.getGlobalSecureIsRights()){
  						SecureContext securecontext = global.getGlobalSecureContext(context.getChannel().getNettyChannel());
  						bool = securecontext.isRights();
  						if(bool){
  							desKeyStr = securecontext.getDesKey();
  						}
  					}
  				}
  				
  				if(desKeyStr != null){
  					desKeyByte = desKeyStr.getBytes("utf-8");
  				}
  				
  				if(context.getGaeaResponse() == null){
  					GaeaResponse respone = new GaeaResponse();
  					context.setGaeaResponse(respone);
  				}
  		
  				context.getGaeaResponse().setResponseBuffer(protocol.toBytes(Global.getSingleton().getGlobalSecureIsRights(),desKeyByte));
  			}
  		}catch(Exception ex){
  			logger.error("Server ProtocolCreateFilter error!");
  		}
  	}
  
  	@Override
  	public int getPriority() {
  		return 50;
  	}
  
  }