Migrate RainLoop Webmail to use Facebook Graph API instead of FQL

rainloop/v/0.0.0/app/libraries/GuzzleHttp/Adapter/StreamingProxyAdapter.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace GuzzleHttp\Adapter;
+
+/**
+ * Sends streaming requests to a streaming compatible adapter while sending all
+ * other requests to a default adapter.
+ *
+ * This, for example, could be useful for taking advantage of the performance
+ * benefits of the CurlAdapter while still supporting true streaming through
+ * the StreamAdapter.
+ */
+class StreamingProxyAdapter implements AdapterInterface
+{
+    private $defaultAdapter;
+    private $streamingAdapter;
+
+    /**
+     * @param AdapterInterface $defaultAdapter   Adapter used for non-streaming responses
+     * @param AdapterInterface $streamingAdapter Adapter used for streaming responses
+     */
+    public function __construct(
+        AdapterInterface $defaultAdapter,
+        AdapterInterface $streamingAdapter
+    ) {
+        $this->defaultAdapter = $defaultAdapter;
+        $this->streamingAdapter = $streamingAdapter;
+    }
+
+    public function send(TransactionInterface $transaction)
+    {
+        return $transaction->getRequest()->getConfig()['stream']
+            ? $this->streamingAdapter->send($transaction)
+            : $this->defaultAdapter->send($transaction);
+    }
+}