cxf中自定义拦截器限制IP

import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.message.Message;
import org.apache.cxf.phase.AbstractPhaseInterceptor;
import org.apache.cxf.phase.Phase;
import org.apache.cxf.transport.http.AbstractHTTPDestination;

/**
 * IP地址拦截器
 * 可在filter.xml文件中配置允许和拒绝访问的IP地址
 * @author Sunshine
 *
 */
public class IpAddressInInterceptor extends AbstractPhaseInterceptor<Message> {

  public IpAddressInInterceptor() {
    super(Phase.RECEIVE);
  }

  public void handleMessage(Message message) throws Fault {
    HttpServletRequest request = (HttpServletRequest) message.get(AbstractHTTPDestination.HTTP_REQUEST);
    // 通过一个IpAddressConfig对象，从XML文件中读取预先设置的允许和拒绝的IP地址，这些值也可以来自数据库
    IpAddressConfig config = IpAddressConfig.getInstance(); // 获取config实例
    List<String> allowedList = config.getAllowedList(); // 允许访问的IP地址
    List<String> deniedList = config.getDeniedList(); // 拒绝访问的IP地址
    String ipAddress = request.getRemoteAddr(); // 取客户端IP地址
    // 先处理拒绝访问的地址
    for (String deniedIpAddress : deniedList) {
      if (deniedIpAddress.equals(ipAddress)) {
        throw new Fault(new IllegalAccessException("IP address " + ipAddress + " is denied"));
      }
    }
    // 如果允许访问的集合非空，继续处理，否则认为全部IP地址均合法
    if (allowedList.size() > 0) {
      boolean contains = false;
      for (String allowedIpAddress : allowedList) {
        if (allowedIpAddress.equals(ipAddress)) {
          contains = true;
          break;
        }
      }
      if (!contains) {
        throw new Fault(new IllegalAccessException("IP address " + ipAddress + " is not allowed"));
      }
    }
  }

}

IP地址允许和阻止列表来自一个自定义的filter.xml文件，这个值也可以来自数据库。当显式抛出Fault异常的时候，这个请求即被阻止，否则放行。

在applicationContext-cxf.xml中要相应的定义这个IP地址拦截器，使之生效。

<!-- IP地址输入拦截器 -->
<bean id="ipAddressInInterceptor"
  class="com.yourcompany.ws.interceptor.IpAddressInInterceptor" />

<!-- 用户名和密码输入拦截器 -->
<bean id="wss4jInInterceptor"
  class="org.apache.cxf.ws.security.wss4j.WSS4JInInterceptor">
  <property name="properties">
    <map>
      <entry key="action" value="UsernameToken Timestamp" />
      <entry key="passwordType" value="PasswordDigest" />
      <entry key="passwordCallbackRef"
        value-ref="digestPasswordCallback" />
    </map>
  </property>
</bean>

<!-- 密码回调 -->
<bean id="digestPasswordCallback"
  class="com.yourcompany.ws.handler.DigestPasswordCallback" />

<!-- 全局Bus(输入拦截器) -->
<cxf:bus>
  <cxf:inInterceptors>
    <ref bean="ipAddressInInterceptor" />
    <ref bean="wss4jInInterceptor" />
  </cxf:inInterceptors>
</cxf:bus>

<!-- WebService服务 -->
<jaxws:endpoint id="helloWorldServiceEP" address="/HelloWorldService">
  <jaxws:implementor ref="helloWorldService" />
</jaxws:endpoint>
<bean id="helloWorldService"
  class="com.yourcompany.ws.impl.HelloWorldServiceImpl" />