From 7973540a9ebee826fd75e58f118bcc957b6a92da Mon Sep 17 00:00:00 2001
From: Raj Janorkar <raj.janorkar@gmail.com>
Date: Mon, 20 Mar 2023 14:13:09 +1000
Subject: [PATCH] Update Request.php

Set the new value for given key in the metadata from the request header.
This function will be useful to change metadata on the fly say in the middleware.
---
 src/Request.php | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/src/Request.php b/src/Request.php
index c6df760..fe71060 100644
--- a/src/Request.php
+++ b/src/Request.php
@@ -186,6 +186,37 @@ public function extractAllMeta(): array
         return $result;
     }
 
+    /**
+     * Set the new value for given key in the metadata from the request header.
+     * This function will be useful to change metadata on the fly say in the middleware. 
+     *
+     * @param string $requestedKey
+     * @param string $newValue
+     *
+     * @return string
+     */
+    public function setMeta(string $requestedKey, string $newValue): string
+    {
+        $uploadMetaData = $this->request->headers->get('Upload-Metadata');
+
+        if (empty($uploadMetaData)) {
+            return '';
+        }
+
+        $uploadMetaDataChunks = explode(',', $uploadMetaData);
+
+        foreach ($uploadMetaDataChunks as $key => $chunk) {
+            $pieces = explode(' ', trim($chunk));
+            if ($pieces[0] === $requestedKey) {
+                $pieces[1] = base64_encode($newValue);
+                $uploadMetaDataChunks[$key] = implode(' ', $pieces);
+                break;
+            }
+        }
+
+        return implode(',', $uploadMetaDataChunks);
+    }
+    
     /**
      * Extract partials from header.
      *