From 6104d83f1d06d0e1b26038d76910a6bf8fee97a1 Mon Sep 17 00:00:00 2001
From: jackburr <jack@burr.co.nz>
Date: Mon, 1 Feb 2021 22:01:40 +0100
Subject: [PATCH 1/2] Flow JS Handler

---
 src/Handler/FlowJSUploadHandler.php | 85 +++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 src/Handler/FlowJSUploadHandler.php

diff --git a/src/Handler/FlowJSUploadHandler.php b/src/Handler/FlowJSUploadHandler.php
new file mode 100644
index 0000000..5b9c37b
--- /dev/null
+++ b/src/Handler/FlowJSUploadHandler.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace Pion\Laravel\ChunkUpload\Handler;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\UploadedFile;
+use Pion\Laravel\ChunkUpload\Config\AbstractConfig;
+use Pion\Laravel\ChunkUpload\Handler\Traits\HandleParallelUploadTrait;
+
+class FlowJSUploadHandler extends ChunksInRequestUploadHandler
+{
+    use HandleParallelUploadTrait;
+
+    const CHUNK_UUID_INDEX = 'flowIdentifier';
+    const CHUNK_NUMBER_INDEX = 'flowChunkNumber';
+    const TOTAL_CHUNKS_INDEX = 'flowTotalChunks';
+
+    /**
+     * The Resumable file uuid for unique chunk upload session.
+     *
+     * @var string|null
+     */
+    protected $fileUuid = null;
+
+    /**
+     * AbstractReceiver constructor.
+     *
+     * @param Request        $request
+     * @param UploadedFile   $file
+     * @param AbstractConfig $config
+     */
+    public function __construct(Request $request, $file, $config)
+    {
+        parent::__construct($request, $file, $config);
+
+        $this->fileUuid = $request->get(self::CHUNK_UUID_INDEX);
+    }
+
+    /**
+     * Append the resumable file - uuid and pass the current chunk index for parallel upload.
+     *
+     * @return string
+     */
+    public function getChunkFileName()
+    {
+        return $this->createChunkFileName($this->fileUuid, $this->getCurrentChunk());
+    }
+
+    /**
+     * Returns current chunk from the request.
+     *
+     * @param Request $request
+     *
+     * @return int
+     */
+    protected function getCurrentChunkFromRequest(Request $request)
+    {
+        return $request->get(self::CHUNK_NUMBER_INDEX);
+    }
+
+    /**
+     * Returns current chunk from the request.
+     *
+     * @param Request $request
+     *
+     * @return int
+     */
+    protected function getTotalChunksFromRequest(Request $request)
+    {
+        return $request->get(self::TOTAL_CHUNKS_INDEX);
+    }
+
+    /**
+     * Checks if the current abstract handler can be used via HandlerFactory.
+     *
+     * @param Request $request
+     *
+     * @return bool
+     */
+    public static function canBeUsedForRequest(Request $request)
+    {
+        return $request->has(self::CHUNK_NUMBER_INDEX) && $request->has(self::TOTAL_CHUNKS_INDEX) &&
+            $request->has(self::CHUNK_UUID_INDEX);
+    }
+}

From 98ac728135a45cd5764911d071be3c008b2a9a7b Mon Sep 17 00:00:00 2001
From: jackburr <jack@burr.co.nz>
Date: Mon, 1 Feb 2021 22:09:25 +0100
Subject: [PATCH 2/2] Update HandlerFactory.php

---
 src/Handler/HandlerFactory.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Handler/HandlerFactory.php b/src/Handler/HandlerFactory.php
index 832cbd6..bbc9475 100644
--- a/src/Handler/HandlerFactory.php
+++ b/src/Handler/HandlerFactory.php
@@ -14,6 +14,7 @@ class HandlerFactory
     protected static $handlers = [
         ContentRangeUploadHandler::class,
         ChunksInRequestUploadHandler::class,
+        FlowJSUploadHandler::class,
         ResumableJSUploadHandler::class,
         DropZoneUploadHandler::class,
         ChunksInRequestSimpleUploadHandler::class,