installed plugin Infinite Uploads version 2.0.8

wp-content/plugins/infinite-uploads/vendor/Aws3/Aws/S3/ApplyChecksumMiddleware.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace UglyRobot\Infinite_Uploads\Aws\S3;
+
+use UglyRobot\Infinite_Uploads\Aws\Api\ApiProvider;
+use UglyRobot\Infinite_Uploads\Aws\Api\Service;
+use UglyRobot\Infinite_Uploads\Aws\CommandInterface;
+use UglyRobot\Infinite_Uploads\GuzzleHttp\Psr7;
+use UglyRobot\Infinite_Uploads\Psr\Http\Message\RequestInterface;
+/**
+ * Apply required or optional MD5s to requests before sending.
+ *
+ * IMPORTANT: This middleware must be added after the "build" step.
+ *
+ * @internal
+ */
+class ApplyChecksumMiddleware
+{
+    private static $sha256 = ['PutObject', 'UploadPart'];
+    /** @var Service */
+    private $api;
+    private $nextHandler;
+    /**
+     * Create a middleware wrapper function.
+     *
+     * @param Service $api
+     * @return callable
+     */
+    public static function wrap(\UglyRobot\Infinite_Uploads\Aws\Api\Service $api)
+    {
+        return function (callable $handler) use($api) {
+            return new self($handler, $api);
+        };
+    }
+    public function __construct(callable $nextHandler, \UglyRobot\Infinite_Uploads\Aws\Api\Service $api)
+    {
+        $this->api = $api;
+        $this->nextHandler = $nextHandler;
+    }
+    public function __invoke(\UglyRobot\Infinite_Uploads\Aws\CommandInterface $command, \UglyRobot\Infinite_Uploads\Psr\Http\Message\RequestInterface $request)
+    {
+        $next = $this->nextHandler;
+        $name = $command->getName();
+        $body = $request->getBody();
+        $op = $this->api->getOperation($command->getName());
+        if (!empty($op['httpChecksumRequired']) && !$request->hasHeader('Content-MD5')) {
+            // Set the content MD5 header for operations that require it.
+            $request = $request->withHeader('Content-MD5', base64_encode(\UglyRobot\Infinite_Uploads\GuzzleHttp\Psr7\hash($body, 'md5', true)));
+        } elseif (in_array($name, self::$sha256) && $command['ContentSHA256']) {
+            // Set the content hash header if provided in the parameters.
+            $request = $request->withHeader('X-Amz-Content-Sha256', $command['ContentSHA256']);
+        }
+        return $next($command, $request);
+    }
+}