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							- <?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)
 
- // +----------------------------------------------------------------------
 
- namespace fast;
 
- use think\Db;
 
- use think\Config;
 
- use think\Session;
 
- use think\Request;
 
- /**
 
-  * 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,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。
 
-  */
 
- class Auth
 
- {
 
-     /**
 
-      * @var object 对象实例
 
-      */
 
-     protected static $instance;
 
-     protected $rules = [];
 
-     /**
 
-      * 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'         => 'user', // 用户信息表
 
-     ];
 
-     public function __construct()
 
-     {
 
-         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 Auth
 
-      */
 
-     public static function instance($options = [])
 
-     {
 
-         if (is_null(self::$instance)) {
 
-             self::$instance = new static($options);
 
-         }
 
-         return self::$instance;
 
-     }
 
-     /**
 
-      * 检查权限
 
-      * @param string|array $name     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 int          $uid      认证用户的id
 
-      * @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
 
-      * @param string       $mode     执行验证的模式,可分为url,normal
 
-      * @return bool 通过验证返回true;失败返回false
 
-      */
 
-     public function check($name, $uid, $relation = 'or', $mode = 'url')
 
-     {
 
-         if (!$this->config['auth_on']) {
 
-             return true;
 
-         }
 
-         // 获取用户需要验证的所有有效规则列表
 
-         $rulelist = $this->getRuleList($uid);
 
-         if (in_array('*', $rulelist)) {
 
-             return true;
 
-         }
 
-         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 ($rulelist as $rule) {
 
-             $query = preg_replace('/^.+\?/U', '', $rule);
 
-             if ('url' == $mode && $query != $rule) {
 
-                 parse_str($query, $param); //解析规则中的param
 
-                 $intersect = array_intersect_assoc($REQUEST, $param);
 
-                 $rule = preg_replace('/\?.*$/U', '', $rule);
 
-                 if (in_array($rule, $name) && $intersect == $param) {
 
-                     //如果节点相符且url参数满足
 
-                     $list[] = $rule;
 
-                 }
 
-             } else {
 
-                 if (in_array($rule, $name)) {
 
-                     $list[] = $rule;
 
-                 }
 
-             }
 
-         }
 
-         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 int $uid  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','name'=>'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];
 
-         }
 
-         // 执行查询
 
-         $user_groups = Db::name($this->config['auth_group_access'])
 
-             ->alias('aga')
 
-             ->join('__' . strtoupper($this->config['auth_group']) . '__ ag', 'aga.group_id = ag.id', 'LEFT')
 
-             ->field('aga.uid,aga.group_id,ag.id,ag.pid,ag.name,ag.rules')
 
-             ->where("aga.uid='{$uid}' and ag.status='normal'")
 
-             ->select();
 
-         $groups[$uid] = $user_groups ?: [];
 
-         return $groups[$uid];
 
-     }
 
-     /**
 
-      * 获得权限规则列表
 
-      * @param int $uid 用户id
 
-      * @return array
 
-      */
 
-     public function getRuleList($uid)
 
-     {
 
-         static $_rulelist = []; //保存用户验证通过的权限列表
 
-         if (isset($_rulelist[$uid])) {
 
-             return $_rulelist[$uid];
 
-         }
 
-         if (2 == $this->config['auth_type'] && Session::has('_rule_list_' . $uid)) {
 
-             return Session::get('_rule_list_' . $uid);
 
-         }
 
-         // 读取用户规则节点
 
-         $ids = $this->getRuleIds($uid);
 
-         if (empty($ids)) {
 
-             $_rulelist[$uid] = [];
 
-             return [];
 
-         }
 
-         // 筛选条件
 
-         $where = [
 
-             'status' => 'normal'
 
-         ];
 
-         if (!in_array('*', $ids)) {
 
-             $where['id'] = ['in', $ids];
 
-         }
 
-         //读取用户组所有权限规则
 
-         $this->rules = Db::name($this->config['auth_rule'])->where($where)->field('id,pid,condition,icon,name,title,ismenu')->select();
 
-         //循环规则,判断结果。
 
-         $rulelist = []; //
 
-         if (in_array('*', $ids)) {
 
-             $rulelist[] = "*";
 
-         }
 
-         foreach ($this->rules as $rule) {
 
-             //超级管理员无需验证condition
 
-             if (!empty($rule['condition']) && !in_array('*', $ids)) {
 
-                 //根据condition进行验证
 
-                 $user = $this->getUserInfo($uid); //获取用户信息,一维数组
 
-                 $nums = 0;
 
-                 $condition = str_replace(['&&', '||'], "\r\n", $rule['condition']);
 
-                 $condition = preg_replace('/\{(\w*?)\}/', '\\1', $condition);
 
-                 $conditionArr = explode("\r\n", $condition);
 
-                 foreach ($conditionArr as $index => $item) {
 
-                     preg_match("/^(\w+)\s?([\>\<\=]+)\s?(.*)$/", trim($item), $matches);
 
-                     if ($matches && isset($user[$matches[1]]) && version_compare($user[$matches[1]], $matches[3], $matches[2])) {
 
-                         $nums++;
 
-                     }
 
-                 }
 
-                 if ($conditionArr && ((stripos($rule['condition'], "||") !== false && $nums > 0) || count($conditionArr) == $nums)) {
 
-                     $rulelist[$rule['id']] = strtolower($rule['name']);
 
-                 }
 
-             } else {
 
-                 //只要存在就记录
 
-                 $rulelist[$rule['id']] = strtolower($rule['name']);
 
-             }
 
-         }
 
-         $_rulelist[$uid] = $rulelist;
 
-         //登录验证则需要保存规则列表
 
-         if (2 == $this->config['auth_type']) {
 
-             //规则列表结果保存到session
 
-             Session::set('_rule_list_' . $uid, $rulelist);
 
-         }
 
-         return array_unique($rulelist);
 
-     }
 
-     public function getRuleIds($uid)
 
-     {
 
-         //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id
 
-         foreach ($groups as $g) {
 
-             $ids = array_merge($ids, explode(',', trim($g['rules'], ',')));
 
-         }
 
-         $ids = array_unique($ids);
 
-         return $ids;
 
-     }
 
-     /**
 
-      * 获得用户资料
 
-      * @param int $uid 用户id
 
-      * @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];
 
-     }
 
- }
 
 
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