package cc.mrbird.febs.common.authentication;
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import cc.mrbird.febs.system.entity.Menu;
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import cc.mrbird.febs.system.entity.Role;
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import cc.mrbird.febs.system.entity.User;
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import cc.mrbird.febs.system.service.IMenuService;
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import cc.mrbird.febs.system.service.IRoleService;
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import cc.mrbird.febs.system.service.IUserDataPermissionService;
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import cc.mrbird.febs.system.service.IUserService;
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import org.apache.commons.lang3.StringUtils;
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import org.apache.shiro.SecurityUtils;
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import org.apache.shiro.authc.*;
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import org.apache.shiro.authz.AuthorizationInfo;
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import org.apache.shiro.authz.SimpleAuthorizationInfo;
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import org.apache.shiro.realm.AuthorizingRealm;
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import org.apache.shiro.subject.PrincipalCollection;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import java.util.List;
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import java.util.Set;
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import java.util.stream.Collectors;
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/**
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* 自定义实现 ShiroRealm，包含认证和授权两大模块
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*
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* @author MrBird
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*/
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@Component
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public class ShiroRealm extends AuthorizingRealm {
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private IUserService userService;
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private IRoleService roleService;
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private IMenuService menuService;
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private IUserDataPermissionService userDataPermissionService;
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@Autowired
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public void setMenuService(IMenuService menuService) {
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this.menuService = menuService;
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}
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@Autowired
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public void setUserService(IUserService userService) {
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this.userService = userService;
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}
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@Autowired
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public void setRoleService(IRoleService roleService) {
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this.roleService = roleService;
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}
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@Autowired
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public void setUserDataPermissionService(IUserDataPermissionService userDataPermissionService) {
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this.userDataPermissionService = userDataPermissionService;
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}
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/**
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* 授权模块，获取用户角色和权限
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*
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* @param principal principal
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* @return AuthorizationInfo 权限信息
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*/
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@Override
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protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principal) {
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User user = (User) SecurityUtils.getSubject().getPrincipal();
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String userName = user.getUsername();
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SimpleAuthorizationInfo simpleAuthorizationInfo = new SimpleAuthorizationInfo();
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// 获取用户角色集
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List<Role> roleList = this.roleService.findUserRole(userName);
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Set<String> roleSet = roleList.stream().map(Role::getRoleName).collect(Collectors.toSet());
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simpleAuthorizationInfo.setRoles(roleSet);
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// 获取用户权限集
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List<Menu> permissionList = this.menuService.findUserPermissions(userName);
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Set<String> permissionSet = permissionList.stream().map(Menu::getPerms).collect(Collectors.toSet());
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simpleAuthorizationInfo.setStringPermissions(permissionSet);
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return simpleAuthorizationInfo;
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}
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/**
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* 用户认证
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*
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* @param token AuthenticationToken 身份认证 token
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* @return AuthenticationInfo 身份认证信息
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* @throws AuthenticationException 认证相关异常
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*/
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@Override
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protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
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// 获取用户输入的用户名和密码
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String username = (String) token.getPrincipal();
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String password = new String((char[]) token.getCredentials());
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// 通过用户名到数据库查询用户信息
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User user = this.userService.findByName(username);
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if (user == null || !StringUtils.equals(password, user.getPassword())) {
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throw new IncorrectCredentialsException("用户名或密码错误！");
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}
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if (User.STATUS_LOCK.equals(user.getStatus())) {
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throw new LockedAccountException("账号已被锁定,请联系管理员！");
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}
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String deptIds = this.userDataPermissionService.findByUserId(String.valueOf(user.getUserId()));
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user.setDeptIds(deptIds);
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return new SimpleAuthenticationInfo(user, password, getName());
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}
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/**
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* 清除当前用户权限缓存
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* 使用方法：在需要清除用户权限的地方注入 ShiroRealm,
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* 然后调用其 clearCache方法。
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*/
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public void clearCache() {
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PrincipalCollection principals = SecurityUtils.getSubject().getPrincipals();
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super.clearCache(principals);
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}
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}
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