laravel RBAC权限管理学习

项目链接

人往高处走水往低处流不努力是不行的，虽然看不懂但是一点点来吧，

1.权限管理简介：（个人理解）

上级与下级的关系，总经理有管理全公司的权限，而财务只有管理公司财务与开支的权限，
小组组长有管理一个小组工作任务的权限，而普通的员工只有领导赋予 的基本权限。

2.RBAC模型：

基于角色的访问控制（RBAC）是实施面向企业安全策略的一种有效的访问控制方式。
中文名基于角色的访问控制外文名RBAC（Role-Based Access Control）解 释访问控制方式基本思想建立一个角色集合
其基本思想是，对系统操作的各种权限不是直接授予具体的用户，而是在用户集合与权限集合之间建立一个角色集合。每一种角色对应一组相应的权限。一旦用户被分配了适当的角色后，该用户就拥有此角色的所有操作权限。这样做的好处是，不必在每次创建用户时都进行分配权限的操作，只要分配用户相应的角色即可，而且角色的权限变更比用户的权限变更要少得多，这样将简化用户的权限管理，减少系统的开销。

用法就是先把角色赋予权限，然后再把角色赋予用户,

表与表之间是多对多的关系。一个用户可以授予多个角色。
一个权限可以授予多个角色

2.1RBAC功能模块

2.2 数据库设计

数据表ddl

/*
 Navicat Premium Data Transfer

 Source Server         : local
 Source Server Type    : MySQL
 Source Server Version : 50725
 Source Host           : localhost:3306
 Source Schema         : admin

 Target Server Type    : MySQL
 Target Server Version : 50725
 File Encoding         : 65001

 Date: 01/07/2021 11:17:26
*/

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- ----------------------------
-- Table structure for migrations
-- ----------------------------
DROP TABLE IF EXISTS `migrations`;
CREATE TABLE `migrations`  (
  `id` int(10) UNSIGNED NOT NULL AUTO_INCREMENT,
  `migration` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
  `batch` int(11) NOT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of migrations
-- ----------------------------
INSERT INTO `migrations` VALUES (1, '2014_10_12_000000_create_users_table', 1);
INSERT INTO `migrations` VALUES (2, '2014_10_12_100000_create_password_resets_table', 1);

-- ----------------------------
-- Table structure for password_resets
-- ----------------------------
DROP TABLE IF EXISTS `password_resets`;
CREATE TABLE `password_resets`  (
  `email` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
  `token` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
  `created_at` timestamp(0) NULL DEFAULT NULL,
  INDEX `password_resets_email_index`(`email`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of password_resets
-- ----------------------------

-- ----------------------------
-- Table structure for permission
-- ----------------------------
DROP TABLE IF EXISTS `permission`;
CREATE TABLE `permission`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '权限标题',
  `urls` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '对应页面的url',
  `status` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
  `updated_at` timestamp(0) NULL DEFAULT NULL,
  `created_at` timestamp(0) NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 2 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci COMMENT = '权限表' ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of permission
-- ----------------------------
INSERT INTO `permission` VALUES (1, '后台登录权限', 'App\Http\Controllers\Admin\LoginController@index', NULL, NULL, NULL);

-- ----------------------------
-- Table structure for role
-- ----------------------------
DROP TABLE IF EXISTS `role`;
CREATE TABLE `role`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
  `status` int(11) NULL DEFAULT NULL,
  `updated_at` timestamp(0) NULL DEFAULT NULL,
  `created_at` timestamp(0) NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 2 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci COMMENT = '角色表' ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of role
-- ----------------------------
INSERT INTO `role` VALUES (1, '皇帝', NULL, NULL, NULL);

-- ----------------------------
-- Table structure for role_permission
-- ----------------------------
DROP TABLE IF EXISTS `role_permission`;
CREATE TABLE `role_permission`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `role_id` int(11) NULL DEFAULT NULL COMMENT '角色id',
  `permission_id` int(11) NULL DEFAULT NULL COMMENT '对应权限表的权限id',
  `created_at` timestamp(0) NULL DEFAULT NULL,
  `updated_at` timestamp(0) NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 2 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci COMMENT = '角色权限关系表' ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of role_permission
-- ----------------------------
INSERT INTO `role_permission` VALUES (1, 1, 1, NULL, NULL);

-- ----------------------------
-- Table structure for user_role
-- ----------------------------
DROP TABLE IF EXISTS `user_role`;
CREATE TABLE `user_role`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `user_id` int(11) NULL DEFAULT NULL COMMENT '用户id',
  `role_id` int(11) NULL DEFAULT NULL COMMENT '角色id',
  `created_at` timestamp(0) NULL DEFAULT NULL,
  `updated_at` timestamp(0) NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci COMMENT = '用户角色关系表' ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of user_role
-- ----------------------------
INSERT INTO `user_role` VALUES (2, 1, 1, NULL, NULL);

-- ----------------------------
-- Table structure for users
-- ----------------------------
DROP TABLE IF EXISTS `users`;
CREATE TABLE `users`  (
  `id` int(10) UNSIGNED NOT NULL AUTO_INCREMENT,
  `username` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
  `email` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
  `password` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL,
  `remember_token` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT NULL,
  `created_at` timestamp(0) NULL DEFAULT NULL,
  `updated_at` timestamp(0) NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE INDEX `users_email_unique`(`email`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 2 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of users
-- ----------------------------
INSERT INTO `users` VALUES (1, 'admin', '762301880@qq.com', 'admin', NULL, NULL, NULL);

SET FOREIGN_KEY_CHECKS = 1;

3.粗略的逻辑设计

3.1给角色授权

得到角色列表

 public function index()
    {
        //
        $role = Role::get();
        return view('admin.role.list', compact('role'));
    }

3.2授权

获取当前页面的信息

 public function auth($id, Request $request)
    {   #获取当前角色
        $role = Role::find($id);
        #获取所有的权限列表
        $perms = Permission::get();
        #获取当前用户已经拥有的角色
        $own_perms = $role->permission;
        $own_pers = [];
        foreach ($own_perms as $v) {
            $own_pers[] = $v->id;
        }

        return view('admin.role.auth', compact('role', 'perms', 'own_pers'));
    }

添加授权

 public function doauth(Request $request)
    {
        $input = $request->except('_token');
        //删除当前角色已有的权限
        DB::table('role_permission')->where('role_id', $input['id'])->delete();
        #添加新赋予的权限
        try{
            if (!empty($input['permission_id'])){
                foreach ($input['permission_id'] as $v) {
                    DB::table('role_permission')->insert(['role_id'=>$input['id'],'permission_id'=>$v]);
                }
            }
            return redirect('admin/role');
        }catch (Exception $exception){
            return $exception->getMessage();
        }

    }

3.2当然还有用户授权这里就不过多的演示

3.3 需要注意的模型类

  public function permission()
    {
          return $this->belongsToMany(Permission::class,'role_permission','role_id','permission_id');
    }

4核心代码控制授权的中间件(注意使用的时候注册)

 public function handle($request, Closure $next)
    {
        #1.获取当前请求的路由 对应的控制器方法名
//        "AppHttpControllersAdminLoginController@index"
        $route = Route::current()->getActionName();
        #2.获取当前用户的权限组
        $user = Users::find(session()->get('user')->id);#获取当前用户
        #获取当前用户的角色
        $roles = $user->Role;
        #根据用户拥有的角色，找对应的权限
        $arr = [];#存放url
        foreach ($roles as $v) {
            $perms = $v->permission;
            foreach ($perms as $perm) {
                $arr[] = $perm->urls;
            }
        }
        $permission=Permission::pluck('urls')->toArray();
        #如果当前请求的路由存在于全部权限中，并且当前请求的路由拥有权限中放行
        if (in_array($route, $permission)&&in_array($route, $arr)) {
            return $next($request);
        }else{
            return redirect('noaccess');
        }
    }

使用方式再需要约束的路由后面单个添加中间件

例子
Route::post('user/auth/edit','UserAuthController@edit')->middleware('hasRole');