/*
* 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 java.util.Iterator;
import java.util.List;
import java.util.Map;
import com.bj58.spat.gaea.protocol.sdp.ExceptionProtocol;
import com.bj58.spat.gaea.protocol.sdp.RequestProtocol;
import com.bj58.spat.gaea.protocol.sfp.enumeration.PlatformType;
import com.bj58.spat.gaea.protocol.sfp.v1.Protocol;
import com.bj58.spat.gaea.protocol.utility.KeyValuePair;
import com.bj58.spat.gaea.server.contract.context.ExecFilterType;
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;
import com.bj58.spat.gaea.server.contract.log.ILog;
import com.bj58.spat.gaea.server.contract.log.LogFactory;
import com.bj58.spat.gaea.server.util.ExceptionHelper;
/**
* CheckNode
*
* @author Service Platform Architecture Team (spat@58.com)
*/
public class ExecuteMethodFilter implements IFilter {
private static ILog logger = LogFactory.getLogger(ExecuteMethodFilter.class);
@Override
public int getPriority() {
return 0;
}
@Override
public void filter(GaeaContext context) throws Exception {
Global global = Global.getSingleton();
Protocol p = context.getGaeaRequest().getProtocol();
GaeaResponse response = new GaeaResponse();
if(p.getPlatformType() == PlatformType.Java && context.getServerType() == ServerType.TCP){
//当前服务启动权限认证,并且当前channel通过校验，则进行方法校验
SecureContext securecontext = global.getGlobalSecureContext(context.getChannel().getNettyChannel());
if(global.getGlobalSecureIsRights()){
//当前服务启用权限认证,判断当前channel是否通过授权
if(securecontext.isRights()){
RequestProtocol request = (RequestProtocol)p.getSdpEntity();
if(request != null){
StringBuffer buff = new StringBuffer(request.getLookup() + "." +request.getMethodName());//接口实现类.方法名(参数序列)
buff.append("(");
List<KeyValuePair> list = request.getParaKVList();
if(list != null){
int i=0;
for(KeyValuePair k : list){
if(k != null){
if(i > 0){
buff.append(",");
}
buff.append(k.getKey());
++i;
}
}
}
buff.append(")");
boolean bool = true;
Map map = global.getSecureMap();
if(map != null){
Iterator<Map.Entry<String, List<String>>> iter = map.entrySet().iterator();
while(iter.hasNext()){
Map.Entry<String, List<String>> enty = (Map.Entry<String, List<String>>)iter.next();
for(String str:enty.getValue()){
if(str.equalsIgnoreCase(buff.toString())){
bool = false;
break;
}
}
}
}
if(bool){
logger.error("当前调用方法没有授权!");
this.ContextException(context, p, response, "当前调用方法没有授权!",global.getGlobalSecureIsRights(),securecontext.getDesKey().getBytes("utf-8"));
}
}
}else{
logger.error("当前连接没有通过权限认证!");
this.ContextException(context, p, response, "当前连接没有通过权限认证!");
}
}
}
}
public void ContextException(GaeaContext context,Protocol protocol,GaeaResponse response,String message,boolean bool,byte[] key) throws Exception{
ExceptionProtocol ep = ExceptionHelper.createError(new Exception());
ep.setErrorMsg(message);
protocol.setSdpEntity(ep);
response.setResponseBuffer(protocol.toBytes(bool,key));
context.setGaeaResponse(response);
this.setInvokeAndFilter(context);
}
public void ContextException(GaeaContext context,Protocol protocol,GaeaResponse response,String message) throws Exception{
ExceptionProtocol ep = ExceptionHelper.createError(new Exception());
ep.setErrorMsg(message);
protocol.setSdpEntity(ep);
response.setResponseBuffer(protocol.toBytes());
context.setGaeaResponse(response);
this.setInvokeAndFilter(context);
}
public void setInvokeAndFilter(GaeaContext context){
context.setExecFilter(ExecFilterType.None);
context.setDoInvoke(false);
}
}