2.CXF安全访问之Http Basic Auth（一）

CXF涉及安全方面主要有三个途径:

1. 最简单的方式是使用Http Basic Auth，就是WSS4J的UsernameToken实现方式，优点是简单易用，缺点是每次都会在MESSAGE里面传密码，安全性低。
2. Transport level(传输层内)的实现Https。CXF samples里面有一个例子wsdl_first_https， 很详细的讲了怎么使用。
3. 对MESSAGE进行加密和签名(encryption and signing)，请参考官方教程。

先来看第一种实现方式，按照上一篇教程中的内容先配置好，然后根据下面顺序进行修改

1.  修改服务端spring配置文件

 

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jaxws="http://cxf.apache.org/jaxws"
	xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd">

	<import resource="classpath:META-INF/cxf/cxf.xml" />
	<import resource="classpath:META-INF/cxf/cxf-servlet.xml" />

	<bean id="serverPasswordCallback" class="com.demo.cxf.callbacks.ServerPasswordCallback"></bean>
	<bean id="serverWSS4JInInterceptor" class="org.apache.cxf.ws.security.wss4j.WSS4JInInterceptor">
		<constructor-arg>
			<map>
				<entry key="action" value="UsernameToken Timestamp" />
				<!-- MD5加密明文密码 -->
				<entry key="passwordType" value="PasswordDigest" />
				<entry key="passwordCallbackRef">
					<ref bean="serverPasswordCallback" />
				</entry>
			</map>
		</constructor-arg>
	</bean>

	<jaxws:endpoint id="helloWorld"
		implementor="com.demo.cxf.helloword.impl.HelloWordImpl" address="/HelloWorld">
		<jaxws:inInterceptors>
			<bean class="org.apache.cxf.interceptor.LoggingInInterceptor" />
			<ref bean="serverWSS4JInInterceptor"/>
		</jaxws:inInterceptors>
		<jaxws:outInterceptors>
			<bean class="org.apache.cxf.interceptor.LoggingOutInterceptor" />
		</jaxws:outInterceptors>
		<jaxws:properties>
			<entry key="mtom-enabled" value="true" />
		</jaxws:properties>
	</jaxws:endpoint>

</beans>

 

2.  创建服务端CallbackHandler

 

package com.demo.cxf.callbacks;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.UnsupportedCallbackException;

import org.apache.ws.security.WSPasswordCallback;

public class ServerPasswordCallback implements CallbackHandler {
	
	Map<String, String> user = new HashMap<String, String>();
	{
		user.put("admin", "123");
		user.put("su", "123");
	}
	
	@Override
	public void handle(Callback[] callbacks) throws IOException,UnsupportedCallbackException 
	{
		WSPasswordCallback wpc = (WSPasswordCallback) callbacks[0];
		if (!user.containsKey(wpc.getIdentifier())) 
		{
			throw new SecurityException("No Permission!");
		}
		/*
		 * 此处特别注意::
		 * WSPasswordCallback 的passwordType属性和password 属性都为null，
		 * 你只能获得用户名（identifier），
		 * 一般这里的逻辑是使用这个用户名到数据库中查询其密码，
		 * 然后再设置到password 属性，WSS4J 会自动比较客户端传来的值和你设置的这个值。
		 * 你可能会问为什么这里CXF 不把客户端提交的密码传入让我们在ServerPasswordCallbackHandler 中比较呢？
		 * 这是因为客户端提交过来的密码在SOAP 消息中已经被加密为MD5 的字符串，
		 * 如果我们要在回调方法中作比较，那么第一步要做的就是把服务端准备好的密码加密为MD5 字符串，
		 * 由于MD5 算法参数不同结果也会有差别，另外，这样的工作CXF 替我们完成不是更简单吗？
		 */
		wpc.setPassword(user.get(wpc.getIdentifier()));//如果包含用户名,就设置该用户名正确密码,由CXF验证密码
		String username = wpc.getIdentifier();
		String password = wpc.getPassword();
		System.out.println("userName:" + username + " password:" + password);
	}

}

 

3.  修改客户端spring配置文件

 

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:jaxws="http://cxf.apache.org/jaxws" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd">

	<bean id="clientOutPasswordCallback" class="cxf.callbacks.ClientOutPasswordCallback"></bean>
	<bean id="clientWSS4JOutInterceptor" class="org.apache.cxf.ws.security.wss4j.WSS4JOutInterceptor">
		<constructor-arg>
			<map>
				<entry key="action" value="UsernameToken Timestamp" />
				<!-- MD5加密明文密码 -->
				<entry key="passwordType" value="PasswordDigest" />
				<entry key="user" value="admin" />
				<entry key="passwordCallbackRef">
					<ref bean="clientOutPasswordCallback" />
				</entry>
			</map>
		</constructor-arg>
	</bean>

	<jaxws:client id="helloClient" serviceClass="com.demo.cxf.helloword.HelloWord"
		address="http://localhost:8080/webservice/services/HelloWorld">
		<jaxws:outInterceptors>
			<ref bean="clientWSS4JOutInterceptor"/>
		</jaxws:outInterceptors>
	</jaxws:client>
</beans>

 

 

4.  创建客户端CallbackHandler

 

package cxf.callbacks;

import java.io.IOException;

import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.UnsupportedCallbackException;

import org.apache.ws.security.WSPasswordCallback;

public class ClientOutPasswordCallback implements CallbackHandler {

	@Override
	public void handle(Callback[] callbacks) throws IOException,
			UnsupportedCallbackException {
		if (callbacks != null && callbacks.length > 0) {
			Callback callback = callbacks[0];
			
			// 设置用户密码,供服务端验证,可以从配置文件或者数据库里面读取
			WSPasswordCallback wsc = (WSPasswordCallback) callback;
			wsc.setPassword("123");
		}
	}

}

 

 

5.  调用代码

ApplicationContext context = new ClassPathXmlApplicationContext(
				"cxf/cxf-client.xml");
HelloWord helloWord = (HelloWord) context.getBean("helloClient");
System.out.println(helloWord.sayHello("Bruce"));