jeecmsv8 shiro 分析
源代码注释可见 https://github.com/chenbo19867758/jeecmsV8-BoBo.git
1.后台登录页面
/jeeadmin/jeecms/login.do
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web.xml中
<filter>
<filter-name>shiroFilter</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
<init-param>
<!--
targetFilterLifecycle 允许代理注入Spring bean
解决因为filter比bean先加载,也就是spring会先加载filter指定的类到container中,这样filter中注入的spring
bean就为null了 设置为true由servlet容器控制filter的生命周期
-->
<param-name>targetFilterLifecycle</param-name>
<param-value>true</param-value>
</init-param>
<!--
设置spring容器filter的bean id,如果不设置则找与filter-name一致的bean 这里未设置 自动找到
shiro-context.xml 中的 shiroFilter bean 过滤 <init-param>
<param-name>targetBeanName</param-name>
<param-value>shiroFilter</param-value> </init-param>
-->
</filter>
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shiro-context.xml 配置了
/jeeadmin/jeecms/login.do = authc
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请求登录时会进入自定义过滤器 authcFilter
<bean id="authcFilter" class="com.jeecms.core.security.CmsAuthenticationFilter"
parent="adminUrlBean">
<!-- 登录成功后进入的页面 -->
<property name="adminIndex" value="/jeeadmin/jeecms/index.do" />
</bean>
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CmsAuthenticationFilter 中
public boolean onPreHandle(ServletRequest request,
ServletResponse response, Object mappedValue) throws Exception {
boolean isAllowed = isAccessAllowed(request, response, mappedValue);
// 判断是否登录页面的请求,转向登录页面
if (isAllowed && isLoginRequest(request, response)) {
try {
issueSuccessRedirect(request, response);
} catch (Exception e) {
logger.error("", e);
}
return false;
}
return isAllowed || onAccessDenied(request, response, mappedValue);
}
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/**
* 在这返回成功页面successUrl
*/
protected void issueSuccessRedirect(ServletRequest request, ServletResponse response)
throws Exception {
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse res = (HttpServletResponse) response;
String successUrl = req.getParameter(RETURN_URL);
if (StringUtils.isBlank(successUrl)) {
if (req.getRequestURI().startsWith(
req.getContextPath() + getAdminPrefix())) {
// 后台直接返回首页,这里为 /jeeadmin/jeecms/index.do
successUrl = getAdminIndex();
// 清除SavedRequest
WebUtils.getAndClearSavedRequest(request);
WebUtils.issueRedirect(request, response, successUrl, null,true);
return;
} else {
// 返回默认的成功页,AuthenticationFilter 中 DEFAULT_SUCCESS_URL = "/";
successUrl = getSuccessUrl();
}
}
WebUtils.getAndClearSavedRequest(request);
WebUtils.issueRedirect(request, response, successUrl, null,true);
//WebUtils.redirectToSavedRequest(req, res, successUrl);
}
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判断是否登录页面的请求, 登录页面转向的成功页面,并区分前端登录和后端登录
登录失败则跳转到spring mvc 映射的路径, CmsLoginAct 中
// 登录失败转向这里
// submit 名称不是固定的随便取, 只需匹配 @RequestMapping
@RequestMapping(value = "/login.do", method = RequestMethod.POST)
public String submit(String username, HttpServletRequest request,
HttpServletResponse response, ModelMap model) {
Object error = request.getAttribute(DEFAULT_ERROR_KEY_ATTRIBUTE_NAME);
if (error != null) {
model.addAttribute("error", error);
Integer errorRemaining= unifiedUserMng.errorRemaining(username);
model.addAttribute("errorRemaining", errorRemaining);
}
//此方法不处理登陆成功(认证成功),shiro认证成功会自动跳转到上一个请求路径
//登陆失败还到login页面
return "login";
}
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shiro详解
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd"
default-lazy-init="true">
<!-- web.xml中 对应名称 <filter-name>shiroFilter</filter-name> -->
<bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
<!-- Shiro的核心安全接口,这个属性是必须的 -->
<property name="securityManager" ref="securityManager" />
<!-- /login.jspx 前端用户登录地址 -->
<property name="loginUrl" value="/login.jspx" />
<!-- successUrl认证成功统一跳转地址,不配置,shiro认证成功自动到上一个请求路径 -->
<property name="successUrl" value="/" />
<!--
这是因为shiro源代码中判断了filter是否为AuthorizationFilter,
只有perms,roles,ssl,rest,port才是属于AuthorizationFilter(授权),
而anon,authcBasic,auchc,user是AuthenticationFilter(验证),所以unauthorizedUrl(未被授权的url)设置后不起作用。
这里不需要配置 unauthorizedUrl
-->
<!-- 自定义filter配置 -->
<property name="filters">
<util:map>
<!-- 下面配置 authcFilter bean -->
<entry key="authc" value-ref="authcFilter" />
<!-- 下面配置 userFilter bean -->
<entry key="user" value-ref="userFilter" />
<!-- 退出过滤器, 下面配置 logoutFilter bean -->
<entry key="logout" value-ref="logoutFilter" />
</util:map>
</property>
<!--
anon匿名 authc登录认证 user用户已登录 logout退出filter anon:例子/admins/**=anon
没有参数,表示可以匿名使用。 authc:例如/admins/user/**=authc表示需要认证(登录)才能使用,没有参数
roles(角色):例子/admins/user/**=roles[admin],参数可以写多个,多个时必须加上引号,并且参数之间用逗号分割,当有多个参数时,例如admins/user/**=roles["admin,guest"],每个参数通过才算通过,相当于hasAllRoles()方法。
perms(权限):例子/admins/user/**=perms[user:add:*],参数可以写多个,多个时必须加上引号,并且参数之间用逗号分割,例如/admins/user/**=perms["user:add:*,user:modify:*"],当有多个参数时必须每个参数都通过才通过,想当于isPermitedAll()方法。
rest:例子/admins/user/**=rest[user],根据请求的方法,相当于/admins/user/**=perms[user:method]
,其中method为post,get,delete等。
port:例子/admins/user/**=port[8081],当请求的url的端口不是8081是跳转到schemal://serverName:8081?queryString,其中schmal是协议http或https等,serverName是你访问的host,8081是url配置里port的端口,queryString是你访问的url里的?后面的参数。
authcBasic:例如/admins/user/**=authcBasic没有参数表示httpBasic认证
ssl:例子/admins/user/**=ssl没有参数,表示安全的url请求,协议为https
user:例如/admins/user/**=user没有参数表示必须存在用户,当登入操作时不做检查
user是介于,anon和authc直之间的。换句话来说:而“/authenticated=
user”表示访问该地址的用户是身份验证通过或RememberMe
登录的都可以。或者说,某个页面需要登录才能看,但这个页面信息又不太重要,就可已使用这个
-->
<!--
后台首页登录 /jeeadmin/jeecms/login.do 后台登录页面访问的接口
/jeeadmin/jeecms/login.do = authc 配置为需要验证权限登录 需要过来器<entry key="authc"
value-ref="authcFilter" /> 过滤
-->
<!--
filterChainDefinitions Shiro连接约束配置,即过滤链的定义
Shiro Filter的执行顺序 “ 自上而下,从左到右”
-->
<property name="filterChainDefinitions">
<value>
*.jspx = anon
*.jhtml = anon
/member/forgot_password.jspx = anon
/member/password_reset.jspx = anon
/member/jobapply.jspx = anon
/login.jspx = authc
/logout.jspx = logout
/member/** = user
/jeeadmin/jeecms/login.do = authc
/jeeadmin/jeecms/logout.do = logout
/jeeadmin/jeecms/** =user
</value>
</property>
</bean>
<!-- Shiro Filter -->
<!-- 全局定义adminLogin,adminPrefix 供下面的bean使用 -->
<bean id="adminUrlBean" class="com.jeecms.core.security.CmsAdminUrl">
<property name="adminLogin" value="/jeeadmin/jeecms/login.do" />
<property name="adminPrefix" value="/jeeadmin/jeecms/" />
</bean>
<!--
自定义过滤
parent="adminUrlBean" 继承adminUrlBean 注入的属性
-->
<bean id="authcFilter" class="com.jeecms.core.security.CmsAuthenticationFilter"
parent="adminUrlBean">
<!-- 登录成功后进入的页面 -->
<property name="adminIndex" value="/jeeadmin/jeecms/index.do" />
</bean>
<!--
<entry key="user" value-ref="userFilter" /> 配置过滤 user 权限的访问地址
/member/** = user /jeeadmin/jeecms/** =user
-->
<bean id="userFilter" class="com.jeecms.core.security.CmsUserFilter"
parent="adminUrlBean" />
<!-- 退出过滤器 -->
<bean id="logoutFilter" class="com.jeecms.core.security.CmsLogoutFilter"
parent="adminUrlBean" />
<!-- 核心管理类 入口, security 安全,-->
<bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
<property name="cacheManager" ref="shiroEhcacheManager" />
<property name="rememberMeManager" ref="rememberMeManager" />
<property name="realm" ref="authorizingRealm" /> <!-- 凭证匹配器 -->
</bean>
<!-- 凭证匹配器,核心验证登录与权限授权 -->
<bean id="authorizingRealm" class="com.jeecms.core.security.CmsAuthorizingRealm">
<property name="credentialsMatcher">
<bean class="org.apache.shiro.authc.credential.HashedCredentialsMatcher">
<!-- 加密的方式,MD5 -->
<property name="hashAlgorithmName" value="MD5" />
<!-- true means hex encoded, false means base64 encoded -->
<property name="storedCredentialsHexEncoded" value="true" />
<!-- 迭代次数,散列的次数 ,加密的次数,2的话就是加密后把加密的值再加密一次 -->
<property name="hashIterations" value="1" />
</bean>
</property>
<property name="cmsUserMng" ref="cmsUserMng" />
</bean>
<bean id="shiroEhcacheManager" class="org.apache.shiro.cache.ehcache.EhCacheManager">
<!--
<property name="cacheManagerConfigFile">
<value>classpath:ehcache-shiro.xml</value> </property>
-->
<property name="cacheManager">
<ref local="cacheManager" />
</property>
</bean>