first commit

modules/Common/Middlewares/AllowCrossDomainMiddleware.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace Modules\Common\Middlewares;
+
+use Closure;
+use Illuminate\Http\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class AllowCrossDomainMiddleware
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  Closure(Request): (Response)  $next
+     */
+    public function handle(Request $request, Closure $next): Response
+    {
+        $response = $next($request);
+
+        // 添加跨域头
+        $response->headers->set('Access-Control-Allow-Origin', '*');
+        $response->headers->set('Access-Control-Allow-Credentials', 'true');
+        $response->headers->set('Access-Control-Max-Age', 1800);
+        $response->headers->set('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
+        $response->headers->set('Access-Control-Allow-Headers', 'Content-Type, Authorization, X-Requested-With, User-Language');
+
+        // 如果是预检请求, 返回 204
+        if ($request->isMethod('OPTIONS')) {
+            return response()->json([], 204, $response->headers->all());
+        }
+
+        return $response;
+    }
+}

modules/Common/Middlewares/LanguageMiddleware.php

@@ -0,0 +1,91 @@
+<?php
+
+namespace Modules\Common\Middlewares;
+
+use Closure;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\App;
+use Illuminate\Support\Facades\Session;
+
+class LanguageMiddleware
+{
+    /**
+     * 支持的语言列表
+     */
+    protected array $supportedLanguages = [
+        'en' => 'en',    // 英语
+        'zh' => 'zh', // 简体中文
+        'jp' => 'ja',    // 日语
+    ];
+
+    /**
+     * 默认语言
+     */
+    protected string $defaultLanguage = 'zh';
+
+    /**
+     * Handle an incoming request.
+     */
+    public function handle(Request $request, Closure $next)
+    {
+        // 获取当前语言
+        $locale = $this->getLocale($request);
+        // 设置应用语言
+        App::setLocale($locale);
+        // 让请求继续处理
+        return $next($request);
+    }
+
+    /**
+     * 获取当前语言设置
+     */
+    protected function getLocale(Request $request): string
+    {
+        // 优先级 1: URL 参数 (例如 ?lang=en)
+        if ($request->has('lang')) {
+            $lang = $request->get('lang');
+            if ($this->isSupported($lang)) {
+                return $lang;
+            }
+        }
+
+        // 优先级 2: User-Language 头
+        $browserLocale = $this->getBrowserLocale($request);
+        if ($browserLocale && $this->isSupported($browserLocale)) {
+            return $browserLocale;
+        }
+
+        // 优先级 3: Session 中存储的语言
+        if (Session::has('locale')) {
+            $lang = Session::get('locale');
+            if ($this->isSupported($lang)) {
+                return $lang;
+            }
+        }
+
+        // 优先级 4: 配置文件中的默认语言
+        return config('app.locale', $this->defaultLanguage);
+    }
+
+    /**
+     * 从 User-Language 头中获取浏览器偏好语言
+     */
+    protected function getBrowserLocale(Request $request): ?string
+    {
+        $acceptLanguage = $request->header('User-Language');
+
+        if (!$acceptLanguage) {
+            return null;
+        }
+
+        return $acceptLanguage;
+    }
+
+    /**
+     * 检查语言是否被支持
+     */
+    protected function isSupported(string $locale): bool
+    {
+        return array_key_exists($locale, $this->supportedLanguages);
+    }
+}