From b861a3995e2a7fbc4c973557f53459d299227148 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=AA=20Quang=20V=C5=A9?= <vulq2@vng.com.vn>
Date: Wed, 2 Sep 2020 15:17:58 +0700
Subject: [PATCH 1/3] Added 'hashAlgorithm' options to use another algorithm
 other than md5

---
 lib/index.js           | 1 +
 lib/memHandler.js      | 2 +-
 lib/tempFileHandler.js | 6 +++---
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/lib/index.js b/lib/index.js
index 41437a6..50d90ae 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -18,6 +18,7 @@ const DEFAULT_OPTIONS = {
   createParentPath: false,
   parseNested: false,
   useTempFiles: false,
+  hashAlgorithm: 'md5',
   tempFileDir: path.join(process.cwd(), 'tmp')
 };
 
diff --git a/lib/memHandler.js b/lib/memHandler.js
index 09accfe..a138484 100644
--- a/lib/memHandler.js
+++ b/lib/memHandler.js
@@ -10,7 +10,7 @@ const { debugLog } = require('./utilities');
  */
 module.exports = (options, fieldname, filename) => {
   const buffers = [];
-  const hash = crypto.createHash('md5');
+  const hash = crypto.createHash(options.hashAlgorithm);
   let fileSize = 0;
   let completed = false;
 
diff --git a/lib/tempFileHandler.js b/lib/tempFileHandler.js
index bfaca8b..6751935 100644
--- a/lib/tempFileHandler.js
+++ b/lib/tempFileHandler.js
@@ -14,8 +14,8 @@ module.exports = (options, fieldname, filename) => {
   checkAndMakeDir({ createParentPath: true }, tempFilePath);
 
   debugLog(options, `Temporary file path is ${tempFilePath}`);
- 
-  const hash = crypto.createHash('md5');
+
+  const hash = crypto.createHash(options.hashAlgorithm);
   let fileSize = 0;
   let completed = false;
 
@@ -54,7 +54,7 @@ module.exports = (options, fieldname, filename) => {
       completed = true;
       debugLog(options, `Cleaning up temporary file ${tempFilePath}...`);
       writeStream.end();
-      deleteFile(tempFilePath, err => (err 
+      deleteFile(tempFilePath, err => (err
         ? debugLog(options, `Cleaning up temporary file ${tempFilePath} failed: ${err}`)
         : debugLog(options, `Cleaning up temporary file ${tempFilePath} done.`)
       ));

From 9f4e197dd5c6b3771d98fef0e1e10f1fd7826881 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=AA=20Quang=20V=C5=A9?= <vulq2@vng.com.vn>
Date: Wed, 2 Sep 2020 15:36:43 +0700
Subject: [PATCH 2/3] hashAlgorithm options: Expose hash using the algorithm
 name

---
 lib/fileFactory.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/fileFactory.js b/lib/fileFactory.js
index 02b82df..19eb967 100644
--- a/lib/fileFactory.js
+++ b/lib/fileFactory.js
@@ -40,7 +40,7 @@ module.exports = (options, fileUploadOptions = {}) => {
   // firefox uploads empty file in case of cache miss when f5ing page.
   // resulting in unexpected behavior. if there is no file data, the file is invalid.
   // if (!fileUploadOptions.useTempFiles && !options.buffer.length) return;
-  
+
   // Create and return file object.
   return {
     name: options.name,
@@ -50,7 +50,7 @@ module.exports = (options, fileUploadOptions = {}) => {
     tempFilePath: options.tempFilePath,
     truncated: options.truncated,
     mimetype: options.mimetype,
-    md5: options.hash,
+    [fileUploadOptions.hashAlgorithm]: options.hash,
     mv: (filePath, callback) => {
       // Define a propper move function.
       const moveFunc = fileUploadOptions.useTempFiles

From 91fdaed874d2cf78e5f1708d4d1ff26085713dda Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=AA=20Quang=20V=C5=A9?= <vulq2@vng.com.vn>
Date: Wed, 2 Sep 2020 15:43:11 +0700
Subject: [PATCH 3/3] hashAlgorithm options: use fallback 'md5' name to pass
 tests

---
 lib/fileFactory.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/fileFactory.js b/lib/fileFactory.js
index 19eb967..a44f14f 100644
--- a/lib/fileFactory.js
+++ b/lib/fileFactory.js
@@ -50,7 +50,7 @@ module.exports = (options, fileUploadOptions = {}) => {
     tempFilePath: options.tempFilePath,
     truncated: options.truncated,
     mimetype: options.mimetype,
-    [fileUploadOptions.hashAlgorithm]: options.hash,
+    [fileUploadOptions.hashAlgorithm || 'md5']: options.hash,
     mv: (filePath, callback) => {
       // Define a propper move function.
       const moveFunc = fileUploadOptions.useTempFiles