下面本人为大家讲解一下如何实现auth权限,
第一步,新建Auth.php,复制下面的代码,把注释中的表都创建一下。把文件放到extend新建文件夹org放进去即可,
<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2011 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: luofei614 <weibo.com/luofei614>
// +----------------------------------------------------------------------
// | 修改者: anuo (本权限类在原3.2.3的基础上修改过来的)
// +----------------------------------------------------------------------
use think\Db;
use think\Config;
use think\Session;
use think\Request;
use think\Loader; /*** 权限认证类* 功能特性:* 1,是对规则进行认证,不是对节点进行认证。用户可以把节点当作规则名称实现对节点进行认证。* $auth=new Auth(); $auth->check('规则名称','用户id')* 2,可以同时对多条规则进行认证,并设置多条规则的关系(or或者and)* $auth=new Auth(); $auth->check('规则1,规则2','用户id','and')* 第三个参数为and时表示,用户需要同时具有规则1和规则2的权限。 当第三个参数为or时,表示用户值需要具备其中一个条件即可。默认为or* 3,一个用户可以属于多个用户组(think_auth_group_access表 定义了用户所属用户组)。我们需要设置每个用户组拥有哪些规则(think_auth_group 定义了用户组权限)* 4,支持规则表达式。* 在think_auth_rule 表中定义一条规则时,如果type为1, condition字段就可以定义规则表达式。 如定义{score}>5 and {score}<100* 表示用户的分数在5-100之间时这条规则才会通过。*/
//数据库
/*
-- ----------------------------
-- think_auth_rule,规则表,
-- id:主键,name:规则唯一标识, title:规则中文名称 status 状态:为1正常,为0禁用,condition:规则表达式,为空表示存在就验证,不为空表示按照条件验证
-- ----------------------------
DROP TABLE IF EXISTS `think_auth_rule`;
CREATE TABLE `think_auth_rule` (`id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT,`name` char(80) NOT NULL DEFAULT '',`title` char(20) NOT NULL DEFAULT '',`type` tinyint(1) NOT NULL DEFAULT '1',`status` tinyint(1) NOT NULL DEFAULT '1',`condition` char(100) NOT NULL DEFAULT '', # 规则附件条件,满足附加条件的规则,才认为是有效的规则PRIMARY KEY (`id`),UNIQUE KEY `name` (`name`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
-- ----------------------------
-- think_auth_group 用户组表,
-- id:主键, title:用户组中文名称, rules:用户组拥有的规则id, 多个规则","隔开,status 状态:为1正常,为0禁用
-- ----------------------------
DROP TABLE IF EXISTS `think_auth_group`;CREATE TABLE `think_auth_group` (`id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT,`title` char(100) NOT NULL DEFAULT '',`status` tinyint(1) NOT NULL DEFAULT '1',`rules` char(80) NOT NULL DEFAULT '',PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
-- ----------------------------
-- think_auth_group_access 用户组明细表
-- uid:用户id,group_id:用户组id
-- ----------------------------
DROP TABLE IF EXISTS `think_auth_group_access`;CREATE TABLE `think_auth_group_access` (`uid` mediumint(8) unsigned NOT NULL,`group_id` mediumint(8) unsigned NOT NULL,UNIQUE KEY `uid_group_id` (`uid`,`group_id`),KEY `uid` (`uid`),KEY `group_id` (`group_id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;*/class Auth
{/*** @var object 对象实例*/protected static $instance;/*** 当前请求实例* @var Request*/protected $request;//默认配置protected $config = ['auth_on' => 1, // 权限开关'auth_type' => 1, // 认证方式,1为实时认证;2为登录认证。'auth_group' => 'auth_group', // 用户组数据表名'auth_group_access' => 'auth_group_access', // 用户-用户组关系表'auth_rule' => 'auth_rule', // 权限规则表'auth_user' => 'member', // 用户信息表];/*** 类架构函数* Auth constructor.*/public function __construct(){//可设置配置项 auth, 此配置项为数组。if ($auth = Config::get('auth')) {$this->config = array_merge($this->config, $auth);}// 初始化request$this->request = Request::instance();}/*** 初始化* @access public* @param array $options 参数* @return \think\Request*/public static function instance($options = []){if (is_null(self::$instance)) {self::$instance = new static($options);}return self::$instance;}/*** 检查权限* @param $name string|array 需要验证的规则列表,支持逗号分隔的权限规则或索引数组* @param $uid int 认证用户的id* @param int $type 认证类型* @param string $mode 执行check的模式* @param string $relation 如果为 'or' 表示满足任一条规则即通过验证;如果为 'and'则表示需满足所有规则才能通过验证* @return bool 通过验证返回true;失败返回false*/public function check($name, $uid, $type = 1, $mode = 'url', $relation = 'or'){if (!$this->config['auth_on']) {return true;}// 获取用户需要验证的所有有效规则列表$authList = $this->getAuthList($uid, $type);if (is_string($name)) {$name = strtolower($name);if (strpos($name, ',') !== false) {$name = explode(',', $name);} else {$name = [$name];}}$list = []; //保存验证通过的规则名if ('url' == $mode) {$REQUEST = unserialize(strtolower(serialize($this->request->param())));}foreach ($authList as $auth) {$query = preg_replace('/^.+\?/U', '', $auth);if ('url' == $mode && $query != $auth) {parse_str($query, $param); //解析规则中的param$intersect = array_intersect_assoc($REQUEST, $param);$auth = preg_replace('/\?.*$/U', '', $auth);if (in_array($auth, $name) && $intersect == $param) {//如果节点相符且url参数满足$list[] = $auth;}} else {if (in_array($auth, $name)) {$list[] = $auth;}}}if ('or' == $relation && !empty($list)) {return true;}$diff = array_diff($name, $list);if ('and' == $relation && empty($diff)) {return true;}return false;}/*** 根据用户id获取用户组,返回值为数组* @param $uid int 用户id* @return array 用户所属的用户组 array(* array('uid'=>'用户id','group_id'=>'用户组id','title'=>'用户组名称','rules'=>'用户组拥有的规则id,多个,号隔开'),* ...)*/public function getGroups($uid){static $groups = [];if (isset($groups[$uid])) {return $groups[$uid];}// 转换表名$auth_group_access = Loader::parseName($this->config['auth_group_access'], 1);$auth_group = Loader::parseName($this->config['auth_group'], 1);// 执行查询$user_groups = Db::view($auth_group_access, 'uid,group_id')->view($auth_group, 'title,rules', "{$auth_group_access}.group_id={$auth_group}.id", 'LEFT')->where("{$auth_group_access}.uid='{$uid}' and {$auth_group}.status='1'")->select();$groups[$uid] = $user_groups ?: [];return $groups[$uid];}/*** 获得权限列表* @param integer $uid 用户id* @param integer $type* @return array*/protected function getAuthList($uid, $type){static $_authList = []; //保存用户验证通过的权限列表$t = implode(',', (array)$type);if (isset($_authList[$uid . $t])) {return $_authList[$uid . $t];}if (2 == $this->config['auth_type'] && Session::has('_auth_list_' . $uid . $t)) {return Session::get('_auth_list_' . $uid . $t);}//读取用户所属用户组$groups = $this->getGroups($uid);$ids = []; //保存用户所属用户组设置的所有权限规则idforeach ($groups as $g) {$ids = array_merge($ids, explode(',', trim($g['rules'], ',')));}$ids = array_unique($ids);if (empty($ids)) {$_authList[$uid . $t] = [];return [];}$map = ['id' => ['in', $ids],'type' => $type];//读取用户组所有权限规则$rules = Db::name($this->config['auth_rule'])->where($map)->field('condition,name')->select();//循环规则,判断结果。$authList = []; //foreach ($rules as $rule) {if (!empty($rule['condition'])) {//根据condition进行验证$user = $this->getUserInfo($uid); //获取用户信息,一维数组$command = preg_replace('/\{(\w*?)\}/', '$user[\'\\1\']', $rule['condition']);@(eval('$condition=(' . $command . ');'));if ($condition) {$authList[] = strtolower($rule['name']);}} else {//只要存在就记录$authList[] = strtolower($rule['name']);}}$_authList[$uid . $t] = $authList;if (2 == $this->config['auth_type']) {//规则列表结果保存到sessionSession::set('_auth_list_' . $uid . $t, $authList);}return array_unique($authList);}/*** 获得用户资料* @param $uid* @return mixed*/protected function getUserInfo($uid){static $user_info = [];$user = Db::name($this->config['auth_user']);// 获取用户表主键$_pk = is_string($user->getPk()) ? $user->getPk() : 'uid';if (!isset($user_info[$uid])) {$user_info[$uid] = $user->where($_pk, $uid)->find();}return $user_info[$uid];}
}
第二步 新建控制器,其它的权限添加就不多说了,下面是验证最终结果
<?php
namespace app\admin\controller;
use \think\Controller;
use think\Loader;
class Base extends Controller
{protected $current_action;public function _initialize(){Loader::import("org/Auth", EXTEND_PATH);$auth=new \Auth();$this->current_action = request()->module().'/'.request()->controller().'/'.lcfirst(request()->action());$result = $auth->check($this->current_action,session('user_id'));if($result){echo "权限验证成功";}}
}
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