暂存

vendor/ezimuel/ringphp/src/Client/Middleware.php

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+<?php
+namespace GuzzleHttp\Ring\Client;
+
+/**
+ * Provides basic middleware wrappers.
+ *
+ * If a middleware is more complex than a few lines of code, then it should
+ * be implemented in a class rather than a static method.
+ */
+class Middleware
+{
+    /**
+     * Sends future requests to a future compatible handler while sending all
+     * other requests to a default handler.
+     *
+     * When the "future" option is not provided on a request, any future responses
+     * are automatically converted to synchronous responses and block.
+     *
+     * @param callable $default Handler used for non-streaming responses
+     * @param callable $future  Handler used for future responses
+     *
+     * @return callable Returns the composed handler.
+     */
+    public static function wrapFuture(
+        callable $default,
+        callable $future
+    ) {
+        return function (array $request) use ($default, $future) {
+            return empty($request['client']['future'])
+                ? $default($request)
+                : $future($request);
+        };
+    }
+
+    /**
+     * Sends streaming requests to a streaming compatible handler while sendin
+     * all other requests to a default handler.
+     *
+     * This, for example, could be useful for taking advantage of the
+     * performance benefits of curl while still supporting true streaming
+     * through the StreamHandler.
+     *
+     * @param callable $default   Handler used for non-streaming responses
+     * @param callable $streaming Handler used for streaming responses
+     *
+     * @return callable Returns the composed handler.
+     */
+    public static function wrapStreaming(
+        callable $default,
+        callable $streaming
+    ) {
+        return function (array $request) use ($default, $streaming) {
+            return empty($request['client']['stream'])
+                ? $default($request)
+                : $streaming($request);
+        };
+    }
+}