package com.yueke.gemini.shiro.realm;
/**
* Created by admin on 2019/2/23.
*/
import com.yueke.gemini.shiro.constants.Global;
import com.yueke.gemini.shiro.entity.Menu;
import com.yueke.gemini.shiro.entity.Role;
import com.yueke.gemini.shiro.entity.User;
import com.yueke.gemini.shiro.service.UserService;
import org.apache.commons.lang3.StringUtils;
import org.apache.shiro.SecurityUtils;
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.session.Session;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.subject.Subject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* 自定义的指定Shiro验证用户登录的类
* 在本例中定义了2个用户:jadyer和玄玉,jadyer具有admin角色和admin:manage权限,玄玉不具有任何角色和权限
* @User: coding99
*
*/
@Service
public class SystemAuthorizingRealm extends AuthorizingRealm {
private Logger logger = LoggerFactory.getLogger(getClass());
@Autowired
private UserService userService;
// @Autowired
// private RoleService roleService;
// @Autowired
// private MenuService menuService;
/**
* 为当前登录的Subject授予角色和权限
* 经测试:本例中该方法的调用时机为需授权资源被访问时
*/
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
//获取当前登录的用户名,等价于(String)principals.fromRealm(this.getName()).iterator().next()
String currentAccount = (String) super.getAvailablePrincipal(principals);
List<String> roleNameList = new ArrayList<String>();
List<String> permissionList = new ArrayList<String>();
//从数据库中获取当前登录用户的详细信息
User user = getUser();
if (null != user) {
SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
List<Role> roleList = null;// roleService.selectRoleByUserId(user.getId());
Map<String, Object> map = new HashMap<String, Object>();
map.put("userId", user.getId());
map.put("permission", "permission");
List<Menu> menuList = null; // menuService.selectMenuByUserId(map);
/*构建用户的角色集合*/
for (Role role : roleList) {
roleNameList.add(role.getRolename());
}
info.addRoles(roleNameList);
/*构建用户的权限代码集合*/
// for (Menu menu : menuList) {
// if (StringUtils.isNotBlank(menu.getPermission())) {
// if (StringUtils.isNotEmpty(menu.getPermission())) {
// String[] permissions = menu.getPermission().split(",");
// for (int i = 0; i < permissions.length; i++) {
// if (StringUtils.isNotEmpty(permissions[i])) {
// permissionList.add(permissions[i]);
// }
// }
// }
// }
// }
info.addStringPermissions(permissionList);
return info;
} else {
return null;
}
}
/**
* 验证当前登录的Subject
* 经测试:本例中该方法的调用时机为LoginController.login()方法中执行Subject.login()时
*/
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authcToken) throws AuthenticationException {
UsernamePasswordToken token = (UsernamePasswordToken) authcToken;
String username = token.getUsername();
User user = userService.findByName(username);
if (user == null) {
throw new UnknownAccountException("帐号找不到");
}
if ("0".equals(user.getStatus())) {
throw new LockedAccountException("msg:该已帐号禁止登录.");
}
SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(user.getUsername(), user.getPassword(), getName());
setSession(Global.GLOBAL_USER, user);
return authenticationInfo;
}
/**
* 将一些数据放到ShiroSession中,以便于其它地方使用
* 比如Controller,使用时直接用HttpSession.getAttribute(key)就可以取到
*/
private void setSession(Object key, Object value) {
Subject currentUser = SecurityUtils.getSubject();
if (null != currentUser) {
Session session = currentUser.getSession();
System.out.println("Session默认超时时间为[" + session.getTimeout() + "]毫秒");
if (null != session) {
session.setAttribute(key, value);
}
}
}
private User getUser() {
Subject currentUser = SecurityUtils.getSubject();
Session session = currentUser.getSession();
User user = (User) session.getAttribute(Global.GLOBAL_USER);
return user;
}
}
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