代码有点长,详细用法请前往博客查看: https://www.waytomilky.com/archives/340.html
实际用例:在我这个小项目里可以找到用:
http://www.lotusadmin.top
<?php
// +----------------------------------------------------------------------
// | ThinkPHP 5.1 auth
// +----------------------------------------------------------------------
// | Copyright (c) 2018 http://www.wyxgn.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 ;)
// +----------------------------------------------------------------------
// | Author: wenhainan <610176732@qq.com>
// +----------------------------------------------------------------------
namespace org;
use think\Db;
use think\facade\Config;
use think\facade\Session;
use think\facade\Request;
use think\Loader;
class Auth
{
/**
* var object 对象实例
*/
protected static $instance;
//默认配置
protected $config = [
'auth_on' => 1, // 权限开关
'auth_type' => 1, // 认证方式,1为实时认证;2为登录认证。
'auth_group' => 'auth_group', // 用户组数据表名
'auth_group_access' => 'auth_group_access', // 用户-用户组关系表
'auth_rule' => 'auth_rule', // 权限规则表
'auth_user' => 'user', // 用户信息表
];
/**
* 类架构函数
* Auth constructor.
*/
public function __construct()
{
//可设置配置项 auth, 此配置项为数组。
if ($auth = Config::get('auth')) {
$this->config = array_merge($this->config, $auth);
}
}
/**
* 初始化
* 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) {
$REQUEST = unserialize(strtolower(serialize(Request::param())));
}
foreach ($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);
$ids = []; //保存用户所属用户组设置的所有权限规则id
foreach ($groups as $g) {
$ids = array_merge($ids, explode(',', trim($g['rules'], ',')));
}
$ids = array_unique($ids);
if (empty($ids)) {
$_authList[$uid . $t] = [];
return [];
}
$map = [
['type','=',$type],
['id','in', $ids],
['status','=',1],
];
//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\']', $rule['condition']);
//dump($command); //debug
@(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session
Session::set('_auth_list_' . $uid . $t, $authList);
}
return array_unique($authList);
}
/**
* 获得用户资料,根据自己的情况读取数据库
*/
protected function getUserInfo($uid)
{
static $userinfo = [];
$user = Db::name($this->config['auth_user']);
// 获取用户表主键
$_pk = is_string($user->getPk()) ? $user->getPk() : 'uid';
if (!isset($userinfo[$uid])) {
$userinfo[$uid] = $user->where($_pk, $uid)->find();
}
return $userinfo[$uid];
}
}