Merge pull request '修复' (#43) from yy-4.20 into master

Reviewed-on: mengfucius/wkcrm#43

application/crm/controller/Callback.php

@@ -126,7 +126,7 @@ class Callback extends Controller
         $code = Request::instance()->get('code');
         $api = new Api(config('wework.corpId'), config('wework.corpSecret'));
         $userInfo = $api->getUserInfo($code);
-        if ($userInfo) {
+        if (isset($userInfo['userid']) && $userInfo['userid']) {
             Session::set('wxuser_id', $userInfo['userid']);
             $adminUser = db('admin_user')->where('wxwork_id', $userInfo['userid'])->find();
             if ($adminUser) {