From 14ea4fae3a5f3841b26ec083622b10f34f4c4e48 Mon Sep 17 00:00:00 2001
From: Abdullah Atta <abdullahatta@streetwriters.co>
Date: Mon, 18 Mar 2024 08:18:59 +0500
Subject: [PATCH] web: expose streaming file decryption

---
 apps/web/src/interfaces/fs.ts | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/apps/web/src/interfaces/fs.ts b/apps/web/src/interfaces/fs.ts
index b7fa0a1bc..575376cb3 100644
--- a/apps/web/src/interfaces/fs.ts
+++ b/apps/web/src/interfaces/fs.ts
@@ -35,7 +35,6 @@ import { Base64DecoderStream } from "../utils/streams/base64-decoder-stream";
 import { toBlob } from "@notesnook-importer/core/dist/src/utils/stream";
 import { DataFormat, SerializedKey } from "@notesnook/crypto";
 import { IDataType } from "hash-wasm/dist/lib/util";
-import { IndexedDBKVStore } from "./key-value";
 import FileHandle from "@notesnook/streamable-fs/dist/src/filehandle";
 import {
   CacheStorageFileStore,
@@ -569,6 +568,15 @@ type FileMetadata = {
 export async function decryptFile(
   filename: string,
   fileMetadata: FileMetadata
+) {
+  const stream = await streamingDecryptFile(filename, fileMetadata);
+  if (!stream) return false;
+  return await toBlob(stream);
+}
+
+export async function streamingDecryptFile(
+  filename: string,
+  fileMetadata: FileMetadata
 ) {
   if (!fileMetadata) return false;
 
@@ -578,7 +586,7 @@ export async function decryptFile(
   const { key, iv } = fileMetadata;
 
   const decryptionStream = await NNCrypto.createDecryptionStream(key, iv);
-  return await toBlob(fileHandle.readable.pipeThrough(decryptionStream));
+  return fileHandle.readable.pipeThrough(decryptionStream);
 }
 
 export async function saveFile(filename: string, fileMetadata: FileMetadata) {