shiro整合oauth

前言

　　如果oauth原理还不清楚的地方，其参考这里。 

一、基本思路脑图

二、客户端shiro配置

　　shiro配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:util="http://www.springframework.org/schema/util"
       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://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

    <!-- 缓存管理器 -->
    <bean id="cacheManager" class="org.apache.shiro.cache.ehcache.EhCacheManager">
        <property name="cacheManagerConfigFile" value="classpath:ehcache/ehcache.xml"/>
    </bean>

    <!-- Realm实现 -->
    <bean id="oAuth2Realm" class="com.hjzgg.auth.client.shiro.OAuth2Realm">
        <property name="cachingEnabled" value="true"/>
        <property name="authenticationCachingEnabled" value="true"/>
        <property name="authenticationCacheName" value="authenticationCache"/>
        <property name="authorizationCachingEnabled" value="true"/>
        <property name="authorizationCacheName" value="authorizationCache"/>

        <property name="clientId" value="c1ebe466-1cdc-4bd3-ab69-77c3561b9dee"/>
        <property name="clientSecret" value="d8346ea2-6017-43ed-ad68-19c0f971738b"/>
        <property name="accessTokenUrl" value="http://127.0.0.1:8080/auth-web/oauth/accessToken"/>
        <property name="userInfoUrl" value="http://127.0.0.1:8080/auth-web/oauth/userInfo"/>
        <property name="redirectUrl" value="http://127.0.0.1:8080/auth-client/login"/>
    </bean>

    <!-- 会话ID生成器 -->
    <bean id="sessionIdGenerator" class="org.apache.shiro.session.mgt.eis.JavaUuidSessionIdGenerator"/>

    <!-- 会话Cookie模板 -->
    <bean id="sessionIdCookie" class="org.apache.shiro.web.servlet.SimpleCookie">
        <constructor-arg value="sid"/>
        <property name="httpOnly" value="true"/>
        <property name="maxAge" value="-1"/>
    </bean>

    <bean id="rememberMeCookie" class="org.apache.shiro.web.servlet.SimpleCookie">
        <constructor-arg value="rememberMe"/>
        <property name="httpOnly" value="true"/>
        <property name="maxAge" value="2592000"/><!-- 30天 -->
    </bean>

    <!-- rememberMe管理器 -->
    <bean id="rememberMeManager" class="org.apache.shiro.web.mgt.CookieRememberMeManager">
        <!-- rememberMe cookie加密的密钥 建议每个项目都不一样 默认AES算法 密钥长度（128 256 512 位）-->
        <property name="cipherKey"
                  value="#{T(org.apache.shiro.codec.Base64).decode('4AvVhmFLUs0KTA3Kprsdag==')}"/>
        <property name="cookie" ref="rememberMeCookie"/>
    </bean>

    <!-- 会话DAO -->
    <bean id="sessionDAO" class="org.apache.shiro.session.mgt.eis.EnterpriseCacheSessionDAO">
        <property name="activeSessionsCacheName" value="shiro-activeSessionCache"/>
        <property name="sessionIdGenerator" ref="sessionIdGenerator"/>
    </bean>

    <!-- 会话管理器 -->
    <bean id="sessionManager" class="org.apache.shiro.web.session.mgt.DefaultWebSessionManager">
        <property name="globalSessionTimeout" value="1800000"/>
        <property name="deleteInvalidSessions" value="true"/>
        <property name="sessionValidationSchedulerEnabled" value="true"/>
        <property name="sessionDAO" ref="sessionDAO"/>
        <property name="sessionIdCookieEnabled" value="true"/>
        <property name="sessionIdCookie" ref="sessionIdCookie"/>
    </bean>

    <!-- 安全管理器 -->
    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
        <property name="realm" ref="oAuth2Realm"/>
        <property name="sessionManager" ref="sessionManager"/>
        <property name="cacheManager" ref="cacheManager"/>
        <property name="rememberMeManager" ref="rememberMeManager"/>
    </bean>

    <!-- 相当于调用SecurityUtils.setSecurityManager(securityManager) -->
    <bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
        <property name="staticMethod" value="org.apache.shiro.SecurityUtils.setSecurityManager"/>
        <property name="arguments" ref="securityManager"/>
    </bean>

    <!-- OAuth2身份验证过滤器 -->
    <bean id="oAuth2AuthenticationFilter" class="com.hjzgg.auth.client.shiro.OAuth2AuthenticationFilter">
        <property name="authcCodeParam" value="code"/>
        <property name="failureUrl" value="/oauth2Failure.jsp"/>
    </bean>

    <!-- Shiro的Web过滤器 -->
    <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
        <property name="securityManager" ref="securityManager"/>
        <property name="loginUrl" value="http://127.0.0.1:8080/auth-web/oauth/authorize?client_id=c1ebe466-1cdc-4bd3-ab69-77c3561b9dee&response_type=code&redirect_uri=http://127.0.0.1:8080/oauth-client/login"/>
        <property name="successUrl" value="/index.jsp"/>
        <property name="filters">
            <util:map>
                <entry key="oauth2Authc" value-ref="oAuth2AuthenticationFilter"/>
            </util:map>
        </property>
        <property name="filterChainDefinitions">
            <value>
                /oauth2Failure.jsp = anon
                /login = oauth2Authc
                /logout = logout
                /** = user
            </value>
        </property>
    </bean>

    <!-- Shiro生命周期处理器-->
    <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor"/>

</beans>

　　注重看一下Realm的参数配置和 shiroFilter loginUrl的配置

　　自定义Realm实现

package com.hjzgg.auth.client.shiro;

import org.apache.oltu.oauth2.client.OAuthClient;
import org.apache.oltu.oauth2.client.URLConnectionClient;
import org.apache.oltu.oauth2.client.request.OAuthBearerClientRequest;
import org.apache.oltu.oauth2.client.request.OAuthClientRequest;
import org.apache.oltu.oauth2.client.response.OAuthAccessTokenResponse;
import org.apache.oltu.oauth2.client.response.OAuthResourceResponse;
import org.apache.oltu.oauth2.common.OAuth;
import org.apache.oltu.oauth2.common.message.types.GrantType;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;

public class OAuth2Realm extends AuthorizingRealm {
    private String clientId;  
    private String clientSecret;  
    private String accessTokenUrl;  
    private String userInfoUrl;  
    private String redirectUrl;

    public String getClientId() {
        return clientId;
    }

    public void setClientId(String clientId) {
        this.clientId = clientId;
    }

    public String getClientSecret() {
        return clientSecret;
    }

    public void setClientSecret(String clientSecret) {
        this.clientSecret = clientSecret;
    }

    public String getAccessTokenUrl() {
        return accessTokenUrl;
    }

    public void setAccessTokenUrl(String accessTokenUrl) {
        this.accessTokenUrl = accessTokenUrl;
    }

    public String getUserInfoUrl() {
        return userInfoUrl;
    }

    public void setUserInfoUrl(String userInfoUrl) {
        this.userInfoUrl = userInfoUrl;
    }

    public String getRedirectUrl() {
        return redirectUrl;
    }

    public void setRedirectUrl(String redirectUrl) {
        this.redirectUrl = redirectUrl;
    }

    public boolean supports(AuthenticationToken token) {
        return token instanceof OAuth2Token; //表示此Realm只支持OAuth2Token类型  
    }  
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo();
        return authorizationInfo;  
    }  
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        OAuth2Token oAuth2Token = (OAuth2Token) token;  
        String code = oAuth2Token.getAuthCode(); //获取 auth code  
        String username = extractUsername(code); // 提取用户名  
        SimpleAuthenticationInfo authenticationInfo =
                new SimpleAuthenticationInfo(username, code, getName());  
        return authenticationInfo;  
    }  
    private String extractUsername(String code) {  
        try {  
            OAuthClient oAuthClient = new OAuthClient(new URLConnectionClient());
            OAuthClientRequest accessTokenRequest = OAuthClientRequest
                    .tokenLocation(accessTokenUrl)  
                    .setGrantType(GrantType.AUTHORIZATION_CODE)
                    .setClientId(clientId).setClientSecret(clientSecret)  
                    .setCode(code).setRedirectURI(redirectUrl)  
                    .buildQueryMessage();  
            //获取access token  
            OAuthAccessTokenResponse oAuthResponse =
                oAuthClient.accessToken(accessTokenRequest, OAuth.HttpMethod.POST);
            String accessToken = oAuthResponse.getAccessToken();  
            //获取user info
            OAuthClientRequest userInfoRequest =   
                new OAuthBearerClientRequest(userInfoUrl)
                    .setAccessToken(accessToken).buildQueryMessage();  
            OAuthResourceResponse resourceResponse = oAuthClient.resource(
                userInfoRequest, OAuth.HttpMethod.GET, OAuthResourceResponse.class);
            String username = resourceResponse.getBody();  
            return username;  
        } catch (Exception e) {  
            throw new OAuth2AuthenticationException(e);  
        }  
    }  
}  

　　注重看一下realm中如何获取 用户信息的

　　自定义Filter实现

package com.hjzgg.auth.client.shiro;

import org.apache.commons.lang3.StringUtils;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.web.filter.authc.AuthenticatingFilter;
import org.apache.shiro.web.util.WebUtils;

import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

public class OAuth2AuthenticationFilter extends AuthenticatingFilter {
    //oauth2 authc code参数名  
    private String authcCodeParam = "code";  
    //客户端id  
    private String clientId;  
    //服务器端登录成功/失败后重定向到的客户端地址  
    private String redirectUrl;  
    //oauth2服务器响应类型  
    private String responseType = "code";  
    private String failureUrl;

    public String getAuthcCodeParam() {
        return authcCodeParam;
    }

    public void setAuthcCodeParam(String authcCodeParam) {
        this.authcCodeParam = authcCodeParam;
    }

    public String getClientId() {
        return clientId;
    }

    public void setClientId(String clientId) {
        this.clientId = clientId;
    }

    public String getRedirectUrl() {
        return redirectUrl;
    }

    public void setRedirectUrl(String redirectUrl) {
        this.redirectUrl = redirectUrl;
    }

    public String getResponseType() {
        return responseType;
    }

    public void setResponseType(String responseType) {
        this.responseType = responseType;
    }

    public String getFailureUrl() {
        return failureUrl;
    }

    public void setFailureUrl(String failureUrl) {
        this.failureUrl = failureUrl;
    }

    protected AuthenticationToken createToken(ServletRequest request, ServletResponse response) throws Exception {
        HttpServletRequest httpRequest = (HttpServletRequest) request;
        String code = httpRequest.getParameter(authcCodeParam);  
        return new OAuth2Token(code);  
    }  
    protected boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) {  
        return false;  
    }  
    protected boolean onAccessDenied(ServletRequest request, ServletResponse response) throws Exception {  
        String error = request.getParameter("error");  
        String errorDescription = request.getParameter("error_description");  
        if(!StringUtils.isEmpty(error)) {//如果服务端返回了错误
            WebUtils.issueRedirect(request, response, failureUrl + "?error=" + error + "error_description=" + errorDescription);
            return false;  
        }  
        Subject subject = getSubject(request, response);
        if(!subject.isAuthenticated()) {  
            if(StringUtils.isEmpty(request.getParameter(authcCodeParam))) {  
                //如果用户没有身份验证，且没有auth code，则重定向到服务端授权  
                saveRequestAndRedirectToLogin(request, response);  
                return false;  
            }  
        }  
        //执行父类里的登录逻辑，调用Subject.login登录  
        return executeLogin(request, response);  
    }  
  
    //登录成功后的回调方法 重定向到成功页面  
    protected boolean onLoginSuccess(AuthenticationToken token, Subject subject, ServletRequest request,  ServletResponse response) throws Exception {  
        issueSuccessRedirect(request, response);  
        return false;  
    }  
  
    //登录失败后的回调   
    protected boolean onLoginFailure(AuthenticationToken token, AuthenticationException ae, ServletRequest request,
                                     ServletResponse response) {  
        Subject subject = getSubject(request, response);  
        if (subject.isAuthenticated() || subject.isRemembered()) {  
            try { //如果身份验证成功了 则也重定向到成功页面  
                issueSuccessRedirect(request, response);  
            } catch (Exception e) {  
                e.printStackTrace();  
            }  
        } else {  
            try { //登录失败时重定向到失败页面  
                WebUtils.issueRedirect(request, response, failureUrl);  
            } catch (IOException e) {
                e.printStackTrace();  
            }  
        }  
        return false;  
    }  
}   

　　注重看一下 如何构造的 AuthToken

三、服务端配置

　　shiro配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:util="http://www.springframework.org/schema/util"
       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://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

    <!-- 缓存管理器 -->
    <bean id="cacheManager" class="com.hjzgg.auth.util.SpringCacheManagerWrapper">
        <property name="cacheManager" ref="springCacheManager"/>
    </bean>

    <bean id="springCacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager">
        <property name="cacheManager" ref="ehcacheManager"/>
    </bean>

    <!--ehcache-->
    <bean id="ehcacheManager" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
        <property name="configLocation" value="classpath:ehcache/ehcache.xml"/>
    </bean>

    <!-- 凭证匹配器 -->
    <bean id="credentialsMatcher" class="com.hjzgg.auth.shiro.RetryLimitHashedCredentialsMatcher">
        <constructor-arg ref="cacheManager"/>
        <property name="hashAlgorithmName" value="md5"/>
        <property name="hashIterations" value="2"/>
        <property name="storedCredentialsHexEncoded" value="true"/>
    </bean>

    <!-- Realm实现 -->
    <bean id="userRealm" class="com.hjzgg.auth.shiro.UserRealm">
        <!--<property name="credentialsMatcher" ref="credentialsMatcher"/>-->
        <property name="cachingEnabled" value="false"/>
        <!--<property name="authenticationCachingEnabled" value="true"/>-->
        <!--<property name="authenticationCacheName" value="authenticationCache"/>-->
        <!--<property name="authorizationCachingEnabled" value="true"/>-->
        <!--<property name="authorizationCacheName" value="authorizationCache"/>-->
    </bean>

    <!-- 会话ID生成器 -->
    <bean id="sessionIdGenerator" class="org.apache.shiro.session.mgt.eis.JavaUuidSessionIdGenerator"/>

    <!-- 会话Cookie模板 -->
    <bean id="sessionIdCookie" class="org.apache.shiro.web.servlet.SimpleCookie">
        <constructor-arg value="sid"/>
        <property name="httpOnly" value="true"/>
        <property name="maxAge" value="-1"/>
    </bean>

    <bean id="rememberMeCookie" class="org.apache.shiro.web.servlet.SimpleCookie">
        <constructor-arg value="rememberMe"/>
        <property name="httpOnly" value="true"/>
        <property name="maxAge" value="2592000"/><!-- 30天 -->
    </bean>

    <!-- rememberMe管理器 -->
    <bean id="rememberMeManager" class="org.apache.shiro.web.mgt.CookieRememberMeManager">
        <!-- rememberMe cookie加密的密钥 建议每个项目都不一样 默认AES算法 密钥长度（128 256 512 位）-->
        <property name="cipherKey"
                  value="#{T(org.apache.shiro.codec.Base64).decode('4AvVhmFLUs0KTA3Kprsdag==')}"/>
        <property name="cookie" ref="rememberMeCookie"/>
    </bean>

    <!-- 会话DAO -->
    <bean id="sessionDAO" class="org.apache.shiro.session.mgt.eis.EnterpriseCacheSessionDAO">
        <property name="activeSessionsCacheName" value="shiro-activeSessionCache"/>
        <property name="sessionIdGenerator" ref="sessionIdGenerator"/>
    </bean>

    <!-- 会话管理器 -->
    <bean id="sessionManager" class="org.apache.shiro.web.session.mgt.DefaultWebSessionManager">
        <property name="globalSessionTimeout" value="1800000"/>
        <property name="deleteInvalidSessions" value="true"/>
        <property name="sessionValidationSchedulerEnabled" value="true"/>
        <property name="sessionDAO" ref="sessionDAO"/>
        <property name="sessionIdCookieEnabled" value="true"/>
        <property name="sessionIdCookie" ref="sessionIdCookie"/>
    </bean>

    <!-- 安全管理器 -->
    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
        <property name="realm" ref="userRealm"/>
        <property name="sessionManager" ref="sessionManager"/>
        <property name="cacheManager" ref="cacheManager"/>
        <property name="rememberMeManager" ref="rememberMeManager"/>
    </bean>

    <!-- 相当于调用SecurityUtils.setSecurityManager(securityManager) -->
    <bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
        <property name="staticMethod" value="org.apache.shiro.SecurityUtils.setSecurityManager"/>
        <property name="arguments" ref="securityManager"/>
    </bean>

    <bean name="formAuthenticationFilter" class="com.hjzgg.auth.shiro.FormAuthenticationFilter"/>

    <!-- Shiro的Web过滤器 -->
    <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
        <property name="securityManager" ref="securityManager"/>
        <property name="filters">
            <util:map>
                <entry key="authc" value-ref="formAuthenticationFilter"/>
            </util:map>
        </property>
        <property name="loginUrl" value="/login.jsp"/>
        <property name="successUrl" value="/index.jsp"/>
        <property name="filterChainDefinitions">
            <value>
                /logout = logout
                /login.jsp = authc
                /oauth/authorize=anon
                /oauth/accessToken=anon
                /oauth/userInfo=anon

                /** = roles[admin]
            </value>
        </property>
    </bean>

    <!-- Shiro生命周期处理器-->
    <bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor"/>

</beans>

　　注重看一下filterChainDefinitions的配置

　　自定义Filter实现

package com.hjzgg.auth.shiro;

import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang3.StringUtils;
import org.apache.oltu.oauth2.common.OAuth;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.web.filter.authc.AuthenticatingFilter;
import org.apache.shiro.web.util.WebUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class FormAuthenticationFilter extends AuthenticatingFilter {
    public static final String DEFAULT_ERROR_KEY_ATTRIBUTE_NAME = "shiroLoginFailure";
    public static final String DEFAULT_USERNAME_PARAM = "username";
    public static final String DEFAULT_PASSWORD_PARAM = "password";
    public static final String DEFAULT_REMEMBER_ME_PARAM = "rememberMe";
    private static final Logger log = LoggerFactory.getLogger(FormAuthenticationFilter.class);
    private String usernameParam = "username";
    private String passwordParam = "password";
    private String rememberMeParam = "rememberMe";
    private String failureKeyAttribute = "shiroLoginFailure";

    public FormAuthenticationFilter() {
        this.setLoginUrl("/login.jsp");
    }

    public void setLoginUrl(String loginUrl) {
        String previous = this.getLoginUrl();
        if(previous != null) {
            this.appliedPaths.remove(previous);
        }

        super.setLoginUrl(loginUrl);
        if(log.isTraceEnabled()) {
            log.trace("Adding login url to applied paths.");
        }

        this.appliedPaths.put(this.getLoginUrl(), (Object)null);
    }

    public String getUsernameParam() {
        return this.usernameParam;
    }

    public void setUsernameParam(String usernameParam) {
        this.usernameParam = usernameParam;
    }

    public String getPasswordParam() {
        return this.passwordParam;
    }

    public void setPasswordParam(String passwordParam) {
        this.passwordParam = passwordParam;
    }

    public String getRememberMeParam() {
        return this.rememberMeParam;
    }

    public void setRememberMeParam(String rememberMeParam) {
        this.rememberMeParam = rememberMeParam;
    }

    public String getFailureKeyAttribute() {
        return this.failureKeyAttribute;
    }

    public void setFailureKeyAttribute(String failureKeyAttribute) {
        this.failureKeyAttribute = failureKeyAttribute;
    }

    protected boolean onAccessDenied(ServletRequest request, ServletResponse response) throws Exception {
        if(this.isLoginRequest(request, response)) {
            if(this.isLoginSubmission(request, response)) {
                if(log.isTraceEnabled()) {
                    log.trace("Login submission detected.  Attempting to execute login.");
                }

                return this.executeLogin(request, response);
            } else {
                if(log.isTraceEnabled()) {
                    log.trace("Login page view.");
                }

                return true;
            }
        } else {
            if(log.isTraceEnabled()) {
                log.trace("Attempting to access a path which requires authentication.  Forwarding to the Authentication url [" + this.getLoginUrl() + "]");
            }

            this.saveRequestAndRedirectToLogin(request, response);
            return false;
        }
    }

    protected boolean isLoginSubmission(ServletRequest request, ServletResponse response) {
        return request instanceof HttpServletRequest && WebUtils.toHttp(request).getMethod().equalsIgnoreCase("POST");
    }

    protected AuthenticationToken createToken(ServletRequest request, ServletResponse response) {
        String username = this.getUsername(request);
        String password = this.getPassword(request);
        return this.createToken(username, password, request, response);
    }

    protected boolean isRememberMe(ServletRequest request) {
        return WebUtils.isTrue(request, this.getRememberMeParam());
    }

    protected boolean onLoginSuccess(AuthenticationToken token, Subject subject, ServletRequest request, ServletResponse response) throws Exception {
        if(StringUtils.isNotEmpty(this.getResponseType(request)) && StringUtils.isNotEmpty(this.getRedirectURI(request))) {
            String authorizeURI = "/oauth/authorize?";
            this.setSuccessUrl(authorizeURI + ((HttpServletRequest)request).getQueryString());
        }
        this.issueSuccessRedirect(request, response);
        return false;
    }

    protected boolean onLoginFailure(AuthenticationToken token, AuthenticationException e, ServletRequest request, ServletResponse response) {
        if(log.isDebugEnabled()) {
            log.debug("Authentication exception", e);
        }

        this.setFailureAttribute(request, e);
        return true;
    }

    protected void setFailureAttribute(ServletRequest request, AuthenticationException ae) {
        String className = ae.getClass().getName();
        request.setAttribute(this.getFailureKeyAttribute(), className);
    }

    protected String getUsername(ServletRequest request) {
        return WebUtils.getCleanParam(request, this.getUsernameParam());
    }

    protected String getPassword(ServletRequest request) {
        return WebUtils.getCleanParam(request, this.getPasswordParam());
    }

    private String getRedirectURI(ServletRequest request) {
        return WebUtils.getCleanParam(request, OAuth.OAUTH_REDIRECT_URI);
    }

    private String getResponseType(ServletRequest request) {
        return WebUtils.getCleanParam(request, OAuth.OAUTH_RESPONSE_TYPE);
    }
}

　　注重看一下onLoginSuccess函数的逻辑

　　自定义Realm实现

package com.hjzgg.auth.shiro;

import com.hjzgg.auth.domain.dto.LightUserResult;
import com.hjzgg.auth.service.UserApiImpl;
import org.apache.shiro.authc.*;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;

import javax.annotation.Resource;
import java.util.Arrays;
import java.util.HashSet;

/**
 * <p>Version: 1.0
 */
public class UserRealm extends AuthorizingRealm {

    @Resource
    private UserApiImpl userApi;

    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        String username = (String)principals.getPrimaryPrincipal();
        LightUserResult user = userApi.queryUserByName(username);

        SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo();
        authorizationInfo.setRoles(new HashSet<>(Arrays.asList(user.getRole())));
        //暂时不加权限
        return authorizationInfo;
    }

    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {

        String username = (String)token.getPrincipal();

        LightUserResult user = userApi.queryUserByName(username);

        if(user == null) {
            throw new UnknownAccountException();//没找到帐号
        }

        //交给AuthenticatingRealm使用CredentialsMatcher进行密码匹配，如果觉得人家的不好可以自定义实现
        SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(
                user.getUserName(), //用户名
                user.getPassword(), //密码
                //ByteSource.Util.bytes(user.getPassword()),//salt=username+salt
                getName()  //realm name
        );
        return authenticationInfo;
    }

    @Override
    public void clearCachedAuthorizationInfo(PrincipalCollection principals) {
        super.clearCachedAuthorizationInfo(principals);
    }

    @Override
    public void clearCachedAuthenticationInfo(PrincipalCollection principals) {
        super.clearCachedAuthenticationInfo(principals);
    }

    @Override
    public void clearCache(PrincipalCollection principals) {
        super.clearCache(principals);
    }

    public void clearAllCachedAuthorizationInfo() {
        getAuthorizationCache().clear();
    }

    public void clearAllCachedAuthenticationInfo() {
        getAuthenticationCache().clear();
    }

    public void clearAllCache() {
        clearAllCachedAuthenticationInfo();
        clearAllCachedAuthorizationInfo();
    }
}

　　注重看下认证信息和权限信息的获取

　　oauth相关接口的实现

package com.hjzgg.auth.controller;

import com.alibaba.fastjson.JSONObject;
import com.hjzgg.auth.domain.dto.LightUserResult;
import com.hjzgg.auth.service.UserApiImpl;
import com.hjzgg.auth.util.OAuthValidate;
import com.hjzgg.auth.util.RedisUtil;
import org.apache.commons.lang3.StringUtils;
import org.apache.oltu.oauth2.as.issuer.MD5Generator;
import org.apache.oltu.oauth2.as.issuer.OAuthIssuer;
import org.apache.oltu.oauth2.as.issuer.OAuthIssuerImpl;
import org.apache.oltu.oauth2.as.request.OAuthAuthzRequest;
import org.apache.oltu.oauth2.as.request.OAuthTokenRequest;
import org.apache.oltu.oauth2.as.response.OAuthASResponse;
import org.apache.oltu.oauth2.common.OAuth;
import org.apache.oltu.oauth2.common.error.OAuthError;
import org.apache.oltu.oauth2.common.exception.OAuthProblemException;
import org.apache.oltu.oauth2.common.exception.OAuthSystemException;
import org.apache.oltu.oauth2.common.message.OAuthResponse;
import org.apache.oltu.oauth2.common.message.types.GrantType;
import org.apache.oltu.oauth2.common.message.types.ParameterStyle;
import org.apache.oltu.oauth2.common.message.types.ResponseType;
import org.apache.oltu.oauth2.common.utils.OAuthUtils;
import org.apache.oltu.oauth2.rs.request.OAuthAccessResourceRequest;
import org.apache.oltu.oauth2.rs.response.OAuthRSResponse;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.net.URI;
import java.net.URISyntaxException;

/**
 * Created by hujunzheng on 2017/5/23.
 */
@Controller
@RequestMapping(value = "oauth")
public class OAuthController {

    @Resource
    private UserApiImpl userApi;

    @Value(value = "#{config['expiresIn']}")
    private String expiresIn;

    /**
     * 获取授权码-服务端
     *
     * @param request
     * @return
     * @throws OAuthProblemException
     * @throws OAuthSystemException
     */
    @RequestMapping(value = "/authorize", method = RequestMethod.GET)
    @ResponseBody
    public Object authorize(HttpServletRequest request) throws URISyntaxException, OAuthProblemException, OAuthSystemException {
        try {
            // 构建OAuth授权请求
            OAuthAuthzRequest oauthRequest = new OAuthAuthzRequest(request);

            //得到到客户端重定向地址
            String responseType = oauthRequest.getParam(OAuth.OAUTH_RESPONSE_TYPE);
            String redirectURI = oauthRequest.getParam(OAuth.OAUTH_REDIRECT_URI);

            // 1.获取OAuth客户端id
            String clientId = oauthRequest.getClientId();
            // 校验客户端id是否正确
            LightUserResult lightUserResult = userApi.queryUserByClientId(clientId);
            if (null == lightUserResult) {
                OAuthResponse response =
                        OAuthASResponse.errorResponse(HttpServletResponse.SC_BAD_REQUEST)
                                .setError(OAuthError.TokenResponse.INVALID_CLIENT)
                                .setErrorDescription("无效的客户端ID")
                                .buildJSONMessage();
                return new ResponseEntity(response.getBody(), HttpStatus.valueOf(response.getResponseStatus()));
            }

            Subject subject = SecurityUtils.getSubject();
            //如果用户没有登录，跳转到登陆页面
            if (!subject.isAuthenticated()) {
                if (!login(subject, request)) {//登录失败时跳转到登陆页面
                    HttpHeaders headers = new HttpHeaders();
                    headers.setLocation(new URI(request.getContextPath() + "/login.jsp?"
                            + OAuth.OAUTH_REDIRECT_URI + "=" + redirectURI
                            + "&" + OAuth.OAUTH_RESPONSE_TYPE + "=" + responseType
                            + "&" + OAuth.OAUTH_CLIENT_ID + "=" + clientId)
                    );
                    return new ResponseEntity(headers, HttpStatus.TEMPORARY_REDIRECT);
                }
            }

            // 2.生成授权码
            String authCode = null;
            // ResponseType仅支持CODE和TOKEN
            if (responseType.equals(ResponseType.CODE.toString())) {
                OAuthIssuerImpl oAuthIssuer = new OAuthIssuerImpl(new MD5Generator());
                authCode = oAuthIssuer.authorizationCode();
                // 存入缓存中authCode-username
                RedisUtil.getRedis().set(authCode, lightUserResult.getUserName());
            }

            //进行OAuth响应构建
            OAuthASResponse.OAuthAuthorizationResponseBuilder builder =
                    OAuthASResponse.authorizationResponse(request,
                            HttpServletResponse.SC_FOUND);
            //设置授权码
            builder.setCode(authCode);

            //构建响应
            final OAuthResponse response = builder.location(redirectURI).buildQueryMessage();
            //根据OAuthResponse返回ResponseEntity响应
            HttpHeaders headers = new HttpHeaders();
            headers.setLocation(new URI(response.getLocationUri()));
            return new ResponseEntity(headers, HttpStatus.valueOf(response.getResponseStatus()));
        } catch (OAuthProblemException e) {
            //出错处理
            String redirectUri = e.getRedirectUri();
            if (OAuthUtils.isEmpty(redirectUri)) {
                //告诉客户端没有传入redirectUri直接报错
                return new ResponseEntity(
                        "OAuth callback url needs to be provided by client!!!", HttpStatus.NOT_FOUND);
            }
            //返回错误消息（如?error=）
            final OAuthResponse response =
                    OAuthASResponse.errorResponse(HttpServletResponse.SC_FOUND)
                            .error(e).location(redirectUri).buildQueryMessage();
            HttpHeaders headers = new HttpHeaders();
            headers.setLocation(new URI(response.getLocationUri()));
            return new ResponseEntity(headers, HttpStatus.valueOf(response.getResponseStatus()));
        } catch (Exception e) {
            return new ResponseEntity("内部错误", HttpStatus.valueOf(HttpServletResponse.SC_INTERNAL_SERVER_ERROR));
        }
    }

    private boolean login(Subject subject, HttpServletRequest request) {
        if ("get".equalsIgnoreCase(request.getMethod())) {
            return false;
        }
        String username = request.getParameter("username");
        String password = request.getParameter("password");

        if (StringUtils.isEmpty(username) || StringUtils.isEmpty(password)) {
            return false;
        }

        UsernamePasswordToken token = new UsernamePasswordToken(username, password);
        try {
            subject.login(token);
            return true;
        } catch (Exception e) {
            request.setAttribute("error", "登录失败:" + e.getClass().getName());
            return false;
        }
    }

    /**
     * 获取访问令牌
     *
     * @param request
     * @return
     * @throws OAuthProblemException
     * @throws OAuthSystemException
     */
    @RequestMapping(value = "accessToken", method = RequestMethod.POST)
    @ResponseBody
    public Object accessToken(HttpServletRequest request) throws OAuthProblemException, OAuthSystemException {
        try {
            // 构建OAuth请求
            OAuthTokenRequest tokenRequest = new OAuthTokenRequest(request);

            // 1.获取OAuth客户端id
            String clientId = tokenRequest.getClientId();
            // 校验客户端id是否正确
            LightUserResult lightUserResult = userApi.queryUserByClientId(clientId);
            if (null == lightUserResult) {
                OAuthResponse oAuthResponse = OAuthResponse
                        .errorResponse(HttpServletResponse.SC_BAD_REQUEST)
                        .setError(OAuthError.TokenResponse.INVALID_CLIENT)
                        .setErrorDescription("无效的客户端ID")
                        .buildJSONMessage();
                return new ResponseEntity(oAuthResponse.getBody(), HttpStatus.valueOf(oAuthResponse.getResponseStatus()));
            }

            // 2.检查客户端安全key是否正确
            if (!lightUserResult.getClientSecret().equals(tokenRequest.getClientSecret())) {
                OAuthResponse oAuthResponse = OAuthResponse
                        .errorResponse(HttpServletResponse.SC_UNAUTHORIZED)
                        .setError(OAuthError.TokenResponse.UNAUTHORIZED_CLIENT)
                        .setErrorDescription("客户端安全key认证不通过")
                        .buildJSONMessage();
                return new ResponseEntity<>(oAuthResponse.getBody(), HttpStatus.valueOf(oAuthResponse.getResponseStatus()));
            }

            // 3.检查授权码是否正确
            String authCode = tokenRequest.getParam(OAuth.OAUTH_CODE);
            // 检查验证类型，此处只检查AUTHORIZATION_CODE类型，其他的还有password或REFRESH_TOKEN
            if (!tokenRequest.getParam(OAuth.OAUTH_GRANT_TYPE).equals(GrantType.AUTHORIZATION_CODE.toString())) {
                if (null == RedisUtil.getRedis().get(authCode)) {
                    OAuthResponse response = OAuthASResponse
                            .errorResponse(HttpServletResponse.SC_BAD_REQUEST)
                            .setError(OAuthError.TokenResponse.INVALID_GRANT)
                            .setErrorDescription("授权码错误")
                            .buildJSONMessage();
                    return new ResponseEntity(response.getBody(), HttpStatus.valueOf(response.getResponseStatus()));

                }
            }

            // 4.生成访问令牌Access Token
            OAuthIssuer oAuthIssuer = new OAuthIssuerImpl(new MD5Generator());
            final String accessToken = oAuthIssuer.accessToken();
            // 将访问令牌加入缓存：accessToken-username
            RedisUtil.getRedis().set(accessToken, lightUserResult.getUserName());

            // 5.生成OAuth响应
            OAuthResponse response = OAuthASResponse
                    .tokenResponse(HttpServletResponse.SC_OK)
                    .setAccessToken(accessToken)
                    .setExpiresIn(expiresIn)
                    .buildJSONMessage();

            return new ResponseEntity(response.getBody(), HttpStatus.valueOf(response.getResponseStatus()));
        } catch (Exception e) {
            e.printStackTrace();
            return new ResponseEntity("内部错误", HttpStatus.valueOf(HttpServletResponse.SC_INTERNAL_SERVER_ERROR));
        }

    }

    @RequestMapping("validate")
    @ResponseBody
    public JSONObject oauthValidate(HttpServletRequest request) throws OAuthSystemException, OAuthProblemException {
        ResponseEntity responseEntity = OAuthValidate.oauthValidate(request);
        JSONObject result = new JSONObject();
        result.put("msg", responseEntity.getBody());
        result.put("code", responseEntity.getStatusCode().value());
        return result;
    }

    @RequestMapping(value = "userInfo", method = RequestMethod.GET)
    @ResponseBody
    public Object userInfo(HttpServletRequest request) throws OAuthSystemException, OAuthProblemException {
        try {
            //构建OAuth资源请求
            OAuthAccessResourceRequest oauthRequest =
                    new OAuthAccessResourceRequest(request, ParameterStyle.QUERY);
            //获取Access Token
            String accessToken = oauthRequest.getAccessToken();

            //验证Access Token
            ResponseEntity responseEntity = OAuthValidate.oauthValidate(request);
            if (responseEntity.getStatusCode() != HttpStatus.OK) {
                // 如果不存在/过期了，返回未验证错误，需重新验证
                OAuthResponse oauthResponse = OAuthRSResponse
                        .errorResponse(HttpServletResponse.SC_UNAUTHORIZED)
                        .setRealm("auth-web")
                        .setError(OAuthError.ResourceResponse.INVALID_TOKEN)
                        .buildHeaderMessage();

                HttpHeaders headers = new HttpHeaders();
                headers.add(OAuth.HeaderType.WWW_AUTHENTICATE,
                        oauthResponse.getHeader(OAuth.HeaderType.WWW_AUTHENTICATE));
                return new ResponseEntity(headers, HttpStatus.UNAUTHORIZED);
            }
            //返回用户名
            String username = RedisUtil.getRedis().get(accessToken);
            return new ResponseEntity(username, HttpStatus.OK);
        } catch (OAuthProblemException e) {
            //检查是否设置了错误码
            String errorCode = e.getError();
            if (OAuthUtils.isEmpty(errorCode)) {
                OAuthResponse oauthResponse = OAuthRSResponse
                        .errorResponse(HttpServletResponse.SC_UNAUTHORIZED)
                        .setRealm("auth-web")
                        .buildHeaderMessage();

                HttpHeaders headers = new HttpHeaders();
                headers.add(OAuth.HeaderType.WWW_AUTHENTICATE,
                        oauthResponse.getHeader(OAuth.HeaderType.WWW_AUTHENTICATE));
                return new ResponseEntity(headers, HttpStatus.UNAUTHORIZED);
            }

            OAuthResponse oauthResponse = OAuthRSResponse
                    .errorResponse(HttpServletResponse.SC_UNAUTHORIZED)
                    .setRealm("auth-web")
                    .setError(e.getError())
                    .setErrorDescription(e.getDescription())
                    .setErrorUri(e.getUri())
                    .buildHeaderMessage();

            HttpHeaders headers = new HttpHeaders();
            headers.add(OAuth.HeaderType.WWW_AUTHENTICATE,
                    oauthResponse.getHeader(OAuth.HeaderType.WWW_AUTHENTICATE));
            return new ResponseEntity(HttpStatus.BAD_REQUEST);
        }
    }
}

 　　注重看一下authorize授权方法的逻辑

四、流程图

　　

五、优化

　　服务端获取登录前url可以利用shiro的一个工具类WebUtils

　　

　　客户端向服务端发起授权请求时，如果服务端没有登录则先将对应的URL存储起来并重定向到服务端的登录页，待服务端登录成功之后，FormAuthenticationFilter会调用onLoginSuccess方法。

　　

　　再看看issueSuccessRedirect方法的源码，一看就不言而喻了。

　　

六、源码下载

　　更多详细信息，请参考源码哦！