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pro_v3.5.1/app/http/middleware/InstallMiddleware.php

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+<?php
+// +----------------------------------------------------------------------
+// | CRMEB [ CRMEB赋能开发者，助力企业发展 ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2016~2026 https://www.crmeb.com All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed CRMEB并不是自由软件，未经许可不能去掉CRMEB相关版权
+// +----------------------------------------------------------------------
+// | Author: CRMEB Team <admin@crmeb.com>
+// +----------------------------------------------------------------------
+
+namespace app\http\middleware;
+
+
+use app\Request;
+use crmeb\interfaces\MiddlewareInterface;
+
+/**
+ * Class InstallMiddleware
+ * @package app\http\middleware
+ */
+class InstallMiddleware implements MiddlewareInterface
+{
+
+    public function handle(Request $request, \Closure $next)
+    {
+        //检测是否已安装CRMEB系统
+        if (!is_dir(root_path() . "public/install/") || !is_file(root_path() . "public/install/install.lock")) {
+            return redirect('/install/index');
+        }
+
+        return $next($request);
+    }
+}