七牛云

vendor/qiniu/php-sdk/src/Qiniu/Http/Middleware/Middleware.php

@@ -0,0 +1,31 @@
+<?php
+namespace Qiniu\Http\Middleware;
+
+use Qiniu\Http\Request;
+use Qiniu\Http\Response;
+
+interface Middleware
+{
+    /**
+     * @param Request $request
+     * @param callable(Request): Response $next
+     * @return Response
+     */
+    public function send($request, $next);
+}
+
+/**
+ * @param array<Middleware> $middlewares
+ * @param callable(Request): Response $handler
+ * @return callable(Request): Response
+ */
+function compose($middlewares, $handler)
+{
+    $next = $handler;
+    foreach (array_reverse($middlewares) as $middleware) {
+        $next = function ($request) use ($middleware, $next) {
+            return $middleware->send($request, $next);
+        };
+    }
+    return $next;
+}