perf: 自定义语言检测中间件

app/index/common.php

@@ -194,14 +194,14 @@ if (!function_exists('get_platform')) {
         } else {
             // 在非移动端环境，根据配置规则判断是否要显示移动端
             $view_cfg = $view_cfg = [
-                'rule'  => env('VIEW_TPL.RULE', 'query'),
+                'rule'  => env('INDEX_VIEW_TPL.RULE', 'query'),
                 'query' => [
-                    'name'  => env('VIEW_TPL.RULE_QUERY_NAME', 'mtpl'),
-                    'value' => env('VIEW_TPL.RULE_QUERY_VALUE', '1'),
+                    'name'  => env('INDEX_VIEW_TPL.RULE_QUERY_NAME', 'mtpl'),
+                    'value' => env('INDEX_VIEW_TPL.RULE_QUERY_VALUE', '1'),
                 ],
                 'domain' => [
-                    'scheme' => env('VIEW_TPL.RULE_DOMAIN_SCHEME', ['http']),
-                    'host'   => env('VIEW_TPL.RULE_DOMAIN_HOST'),
+                    'scheme' => env('INDEX_VIEW_TPL.RULE_DOMAIN_SCHEME', ['http']),
+                    'host'   => env('INDEX_VIEW_TPL.RULE_DOMAIN_HOST'),
                 ],
             ];
             if ($view_cfg['rule'] == 'query') {

app/index/middleware.php

@@ -2,7 +2,8 @@
 // 这是系统自动生成的middleware定义文件
 return [
     // 启用多语言支持
-    think\middleware\LoadLangPack::class,
+    // think\middleware\LoadLangPack::class,
+    app\index\middleware\LoadLangPack::class,
     // 确认请求来源
     app\index\middleware\ConfirmRequestFrom::class,
 ];

app/index/middleware/LoadLangPack.php

@@ -0,0 +1,39 @@
+<?php
+declare (strict_types = 1);
+
+namespace app\index\middleware;
+
+use think\Request;
+
+class LoadLangPack extends \think\middleware\LoadLangPack
+{
+    // 重写检测语言方法
+    protected function detect(Request $request): string
+    {
+        $domain_detect = env('INDEX_LANG_DETECT.DOMAIN_DETECT', false);
+        if ($domain_detect) {
+            $lang = $this->getLangSet($request, env('INDEX_LANG_DETECT.DOMAIN_RULE', []));
+            if ($lang != '') {
+                return $lang;
+            }
+        }
+
+        return parent::detect($request);
+    }
+
+    // 根据请求及规则获取语言
+    private function getLangSet(Request $request, array $rules): string
+    {
+        $map = [];
+        foreach ($rules as $v) {
+            $val  = str_replace('，', ',', $v);
+            $item = explode(',', $v);
+            foreach ($item as $val) {
+                $it          = explode('=', $val);
+                $map[$it[0]] = $it[1];
+            }
+        }
+        
+        return $map[$request->host()] ?? '';
+    }
+}