S3/Minio storage controller Support

storage-controllers/s3/Aws/Api/Serializer/QuerySerializer.php

@@ -0,0 +1,69 @@
+<?php
+namespace Aws\Api\Serializer;
+
+use Aws\Api\Service;
+use Aws\CommandInterface;
+use GuzzleHttp\Psr7\Request;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Serializes a query protocol request.
+ * @internal
+ */
+class QuerySerializer
+{
+    private $endpoint;
+    private $api;
+    private $paramBuilder;
+
+    public function __construct(
+        Service $api,
+        $endpoint,
+        callable $paramBuilder = null
+    ) {
+        $this->api = $api;
+        $this->endpoint = $endpoint;
+        $this->paramBuilder = $paramBuilder ?: new QueryParamBuilder();
+    }
+
+    /**
+     * When invoked with an AWS command, returns a serialization array
+     * containing "method", "uri", "headers", and "body" key value pairs.
+     *
+     * @param CommandInterface $command
+     *
+     * @return RequestInterface
+     */
+    public function __invoke(CommandInterface $command)
+    {
+        $operation = $this->api->getOperation($command->getName());
+
+        $body = [
+            'Action'  => $command->getName(),
+            'Version' => $this->api->getMetadata('apiVersion')
+        ];
+
+        $params = $command->toArray();
+
+        // Only build up the parameters when there are parameters to build
+        if ($params) {
+            $body += call_user_func(
+                $this->paramBuilder,
+                $operation->getInput(),
+                $params
+            );
+        }
+
+        $body = http_build_query($body, null, '&', PHP_QUERY_RFC3986);
+
+        return new Request(
+            'POST',
+            $this->endpoint,
+            [
+                'Content-Length' => strlen($body),
+                'Content-Type'   => 'application/x-www-form-urlencoded'
+            ],
+            $body
+        );
+    }
+}