| <?php
namespace Org\Util;
use Think\Db;
/**
+------------------------------------------------------------------------------
* 基于角色的数据库方式验证类
+------------------------------------------------------------------------------
*/
// 配置文件增加设置
// USER_AUTH_ON 是否需要认证
// USER_AUTH_TYPE 认证类型
// USER_AUTH_KEY 认证识别号
// REQUIRE_AUTH_MODULE 需要认证模块
// NOT_AUTH_MODULE 无需认证模块
// USER_AUTH_GATEWAY 认证网关
// RBAC_DB_DSN 数据库连接DSN
// RBAC_ROLE_TABLE 角色表名称
// RBAC_USER_TABLE 用户表名称
// RBAC_ACCESS_TABLE 权限表名称
// RBAC_NODE_TABLE 节点表名称
class Rbac {
// 认证方法
static public function authenticate($map,$model='') {
if(empty($model)) $model = C('USER_AUTH_MODEL');
//使用给定的Map进行认证
return M($model)->where($map)->find();
}
//用于检测用户权限的方法,并保存到Session中
static function saveAccessList($authId=null) {
if(null===$authId) $authId = $_SESSION[C('USER_AUTH_KEY')];
// 如果使用普通权限模式，保存当前用户的访问权限列表
// 对管理员开发所有权限
if(C('USER_AUTH_TYPE') !=2 && !$_SESSION[C('ADMIN_AUTH_KEY')] )
$_SESSION['_ACCESS_LIST'] = self::getAccessList($authId);
return ;
}
// 取得模块的所属记录访问权限列表 返回有权限的记录ID数组
static function getRecordAccessList($authId=null,$module='') {
if(null===$authId) $authId = $_SESSION[C('USER_AUTH_KEY')];
if(empty($module)) $module = CONTROLLER_NAME;
//获取权限访问列表
$accessList = self::getModuleAccessList($authId,$module);
return $accessList;
}
//检查当前操作是否需要认证
static function checkAccess() {
//如果项目要求认证，并且当前模块需要认证，则进行权限认证
if( C('USER_AUTH_ON') ){
$_module = array();
$_action = array();
if("" != C('REQUIRE_AUTH_MODULE')) {
//需要认证的模块
$_module['yes'] = explode(',',strtoupper(C('REQUIRE_AUTH_MODULE')));
}else {
//无需认证的模块
$_module['no'] = explode(',',strtoupper(C('NOT_AUTH_MODULE')));
}
//检查当前模块是否需要认证
if((!empty($_module['no']) && !in_array(strtoupper(CONTROLLER_NAME),$_module['no'])) || (!empty($_module['yes']) && in_array(strtoupper(CONTROLLER_NAME),$_module['yes']))) {
if("" != C('REQUIRE_AUTH_ACTION')) {
//需要认证的操作
$_action['yes'] = explode(',',strtoupper(C('REQUIRE_AUTH_ACTION')));
}else {
//无需认证的操作
$_action['no'] = explode(',',strtoupper(C('NOT_AUTH_ACTION')));
}
//检查当前操作是否需要认证
if((!empty($_action['no']) && !in_array(strtoupper(ACTION_NAME),$_action['no'])) || (!empty($_action['yes']) && in_array(strtoupper(ACTION_NAME),$_action['yes']))) {
return true;
}else {
return false;
}
}else {
return false;
}
}
return false;
}
// 登录检查
static public function checkLogin() {
//检查当前操作是否需要认证
if(self::checkAccess()) {
//检查认证识别号
if(!$_SESSION[C('USER_AUTH_KEY')]) {
if(C('GUEST_AUTH_ON')) {
// 开启游客授权访问
if(!isset($_SESSION['_ACCESS_LIST']))
// 保存游客权限
self::saveAccessList(C('GUEST_AUTH_ID'));
}else{
// 禁止游客访问跳转到认证网关
redirect(PHP_FILE.C('USER_AUTH_GATEWAY'));
}
}
}
return true;
}
//权限认证的过滤器方法
static public function AccessDecision($appName=MODULE_NAME) {
//检查是否需要认证
if(self::checkAccess()) {
//存在认证识别号，则进行进一步的访问决策
$accessGuid = md5($appName.CONTROLLER_NAME.ACTION_NAME);
if(empty($_SESSION[C('ADMIN_AUTH_KEY')])) {
if(C('USER_AUTH_TYPE')==2) {
//加强验证和即时验证模式 更加安全 后台权限修改可以即时生效
//通过数据库进行访问检查
$accessList = self::getAccessList($_SESSION[C('USER_AUTH_KEY')]);
}else {
// 如果是管理员或者当前操作已经认证过，无需再次认证
if( $_SESSION[$accessGuid]) {
return true;
}
//登录验证模式，比较登录后保存的权限访问列表
$accessList = $_SESSION['_ACCESS_LIST'];
}
//判断是否为组件化模式，如果是，验证其全模块名
if(!isset($accessList[strtoupper($appName)][strtoupper(CONTROLLER_NAME)][strtoupper(ACTION_NAME)])) {
$_SESSION[$accessGuid] = false;
return false;
}
else {
$_SESSION[$accessGuid] = true;
}
}else{
//管理员无需认证
return true;
}
}
return true;
}
/**
+----------------------------------------------------------
* 取得当前认证号的所有权限列表
+----------------------------------------------------------
* @param integer $authId 用户ID
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
*/
static public function getAccessList($authId) {
// Db方式权限数据
$db = Db::getInstance(C('RBAC_DB_DSN'));
$table = array('role'=>C('RBAC_ROLE_TABLE'),'user'=>C('RBAC_USER_TABLE'),'access'=>C('RBAC_ACCESS_TABLE'),'node'=>C('RBAC_NODE_TABLE'));
$sql = "select node.id,node.name from ".
$table['role']." as role,".
$table['user']." as user,".
$table['access']." as access ,".
$table['node']." as node ".
"where user.user_id='{$authId}' and user.role_id=role.id and ( access.role_id=role.id or (access.role_id=role.pid and role.pid!=0 ) ) and role.status=1 and access.node_id=node.id and node.level=1 and node.status=1";
$apps = $db->query($sql);
$access = array();
foreach($apps as $key=>$app) {
$appId = $app['id'];
$appName = $app['name'];
// 读取项目的模块权限
$access[strtoupper($appName)] = array();
$sql = "select node.id,node.name from ".
$table['role']." as role,".
$table['user']." as user,".
$table['access']." as access ,".
$table['node']." as node ".
"where user.user_id='{$authId}' and user.role_id=role.id and ( access.role_id=role.id or (access.role_id=role.pid and role.pid!=0 ) ) and role.status=1 and access.node_id=node.id and node.level=2 and node.pid={$appId} and node.status=1";
$modules = $db->query($sql);
// 判断是否存在公共模块的权限
$publicAction = array();
foreach($modules as $key=>$module) {
$moduleId = $module['id'];
$moduleName = $module['name'];
if('PUBLIC'== strtoupper($moduleName)) {
$sql = "select node.id,node.name from ".
$table['role']." as role,".
$table['user']." as user,".
$table['access']." as access ,".
$table['node']." as node ".
"where user.user_id='{$authId}' and user.role_id=role.id and ( access.role_id=role.id or (access.role_id=role.pid and role.pid!=0 ) ) and role.status=1 and access.node_id=node.id and node.level=3 and node.pid={$moduleId} and node.status=1";
$rs = $db->query($sql);
foreach ($rs as $a){
$publicAction[$a['name']] = $a['id'];
}
unset($modules[$key]);
break;
}
}
// 依次读取模块的操作权限
foreach($modules as $key=>$module) {
$moduleId = $module['id'];
$moduleName = $module['name'];
$sql = "select node.id,node.name from ".
$table['role']." as role,".
$table['user']." as user,".
$table['access']." as access ,".
$table['node']." as node ".
"where user.user_id='{$authId}' and user.role_id=role.id and ( access.role_id=role.id or (access.role_id=role.pid and role.pid!=0 ) ) and role.status=1 and access.node_id=node.id and node.level=3 and node.pid={$moduleId} and node.status=1";
$rs = $db->query($sql);
$action = array();
foreach ($rs as $a){
$action[$a['name']] = $a['id'];
}
// 和公共模块的操作权限合并
$action += $publicAction;
$access[strtoupper($appName)][strtoupper($moduleName)] = array_change_key_case($action,CASE_UPPER);
}
}
return $access;
}
// 读取模块所属的记录访问权限
static public function getModuleAccessList($authId,$module) {
// Db方式
$db = Db::getInstance(C('RBAC_DB_DSN'));
$table = array('role'=>C('RBAC_ROLE_TABLE'),'user'=>C('RBAC_USER_TABLE'),'access'=>C('RBAC_ACCESS_TABLE'));
$sql = "select access.node_id from ".
$table['role']." as role,".
$table['user']." as user,".
$table['access']." as access ".
"where user.user_id='{$authId}' and user.role_id=role.id and ( access.role_id=role.id or (access.role_id=role.pid and role.pid!=0 ) ) and role.status=1 and access.module='{$module}' and access.status=1";
$rs = $db->query($sql);
$access = array();
foreach ($rs as $node){
$access[] = $node['node_id'];
}
return $access;
}
}
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