From 92f10dd4075ce9e1ff50c708f72cfa7f2695f79a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFs=20Mansot?=
 <26844641+devfull@users.noreply.github.com>
Date: Thu, 21 Sep 2023 11:39:12 +0200
Subject: [PATCH] fix `FileService` to compute file hash in `create`

---
 src/services/common/CryptoService/CryptoService.ts | 4 ++++
 src/services/common/FilesService/FilesService.ts   | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/src/services/common/CryptoService/CryptoService.ts b/src/services/common/CryptoService/CryptoService.ts
index 893f62c5..b924b974 100644
--- a/src/services/common/CryptoService/CryptoService.ts
+++ b/src/services/common/CryptoService/CryptoService.ts
@@ -15,6 +15,10 @@ export default class CryptoService extends BaseService {
 		return crypto.createHash("sha256").update(String(key)).digest("base64").slice(0, 32);
 	}
 
+	public async getHash(buffer: Buffer): Promise<string> {
+		return crypto.createHash("sha256").update(buffer).digest("hex");
+	}
+
 	/**
 	 * @description : encrypt data
 	 * @throws {Error} If data cannot be encrypted
diff --git a/src/services/common/FilesService/FilesService.ts b/src/services/common/FilesService/FilesService.ts
index f80ddcc8..ac14c6b9 100644
--- a/src/services/common/FilesService/FilesService.ts
+++ b/src/services/common/FilesService/FilesService.ts
@@ -71,12 +71,15 @@ export default class FilesService extends BaseService {
 	public async create(file: File, fileData: Express.Multer.File) {
 		const key = v4();
 		const encryptedFile = await this.cryptoService.encrypt(fileData.buffer, key);
+		const hash = await this.cryptoService.getHash(fileData.buffer);
+
 		const upload = await this.ipfsService.pinFile(Readable.from(encryptedFile), fileData.originalname);
 		let fileToCreate: File = file;
 		fileToCreate.file_name = fileData.originalname;
 		fileToCreate.file_path = this.variables.PINATA_GATEWAY.concat(upload.IpfsHash);
 		fileToCreate.mimetype = fileData.mimetype;
 		fileToCreate.size = fileData.size;
+		fileToCreate.hash = hash;
 		fileToCreate.archived_at = null;
 
 		return this.filesRepository.create(fileToCreate, key);