add installation check at BootServiceProvider

app/Providers/BootServiceProvider.php

@@ -0,0 +1,79 @@
+<?php
+
+namespace App\Providers;
+
+use Illuminate\Support\ServiceProvider;
+use App\Exceptions\E;
+
+class BootServiceProvider extends ServiceProvider
+{
+    /**
+     * Bootstrap any application services.
+     *
+     * @return void
+     */
+    public function boot()
+    {
+        \View::addExtension('tpl', 'blade');
+        $this->checkDbConfig();
+        $this->checkInstallation();
+    }
+
+    protected function checkDbConfig()
+    {
+        // use error control to hide shitty connect warnings
+        @$conn = new \mysqli(
+            config('database.connections.mysql.host'),
+            config('database.connections.mysql.username'),
+            config('database.connections.mysql.password'),
+            config('database.connections.mysql.database'),
+            config('database.connections.mysql.port')
+        );
+
+        if ($conn->connect_error)
+            throw new E("无法连接至 MySQL 服务器，请检查你的配置：".$conn->connect_error, $conn->connect_errno, true);
+
+        return true;
+    }
+
+    protected function checkInstallation()
+    {
+        if (!$this->checkTableExist()) {
+            \Http::redirect(url('/setup/index.php'));
+        }
+
+        if (!is_dir(BASE_DIR.'/textures/')) {
+            throw new E("检测到 `textures` 文件夹已被删除，请重新运行 <a href='".url('setup')."'>安装程序</a>，或者手动放置一个。", -1, true);
+        }
+
+        if (config('app.version') != \Option::get('version', '')) {
+            \Http::redirect(url('/setup/update.php'));
+        }
+
+        return true;
+    }
+
+    public static function checkTableExist()
+    {
+        $tables = ['users', 'closets', 'players', 'textures', 'options'];
+
+        foreach ($tables as $table_name) {
+            // prefix will be added automatically
+            if (!\Schema::hasTable($table_name)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Register any application services.
+     *
+     * @return void
+     */
+    public function register()
+    {
+        //
+    }
+}

app/Services/Database/Database.php

@@ -41,12 +41,19 @@ class Database
      */
     public function __construct($config = null)
     {
+        if (is_null($config)) {
+            $db_config = require BASE_DIR.'/config/database.php';
+            $config = $db_config['connections']['mysql'];
+        }
+
+        $this->config = $config;
+
         @$this->connection = new \mysqli(
-            config('database.connections.mysql.host'),
-            config('database.connections.mysql.username'),
-            config('database.connections.mysql.password'),
-            config('database.connections.mysql.database'),
-            config('database.connections.mysql.port')
+            $this->config['host'],
+            $this->config['username'],
+            $this->config['password'],
+            $this->config['database'],
+            $this->config['port']
         );
 
         if ($this->connection->connect_error)
@@ -138,7 +145,7 @@ class Database
 
     public function hasTable($table_name)
     {
-        $sql = "SELECT table_name FROM `INFORMATION_SCHEMA`.`TABLES` WHERE (table_name = '$table_name') AND TABLE_SCHEMA='".Config::getDbConfig()['database']."'";
+        $sql = "SELECT table_name FROM `INFORMATION_SCHEMA`.`TABLES` WHERE (table_name = '$table_name') AND TABLE_SCHEMA='".$this->config['database']."'";
         return ($this->query($sql)->num_rows != 0) ? true : false;
     }
 
@@ -191,8 +198,9 @@ class Database
 
     public function __destruct()
     {
-        if (!is_null($this->connection))
+        if (!is_null($this->connection)) {
             $this->connection->close();
+        }
     }
 
 }

app/Services/Database/Migration.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Services\Database;
+
+class Migration
+{
+    /**
+     * Create tables, prefix will be added automatically
+     *
+     * @return void
+     */
+    public static function creatTables()
+    {
+        require BASE_DIR."/setup/tables.php";
+    }
+
+    public static function __callStatic($method, $args)
+    {
+        if (strpos($method, 'import') !== false) {
+            $filename = BASE_DIR."/setup/migrations/".snake_case($method).".php";
+            if (file_exists($filename)) {
+                return require $filename;
+            }
+        }
+        throw new \InvalidArgumentException('Non-existent migration');
+    }
+
+}

app/Services/Http.php

@@ -16,8 +16,12 @@ class Http
     public static function redirect($url, $msg = "")
     {
         if ($msg !== "") {
-            Session::flash('msg', $msg);
-            Session::save();
+            if (app()->bound('session')) {
+                Session::flash('msg', $msg);
+                Session::save();
+            } else {
+                $_SESSION['msg'] = $msg;
+            }
         }
 
         if (!headers_sent()) {