From d7d4b46c46e8847c63f7925d5b9bb4f4ae162db4 Mon Sep 17 00:00:00 2001
From: rustdesk <info@rustdesk.com>
Date: Wed, 19 Jan 2022 00:57:57 +0800
Subject: [PATCH] sha256

---
 package.json   | 1 +
 src/websock.ts | 7 +++++++
 yarn.lock      | 5 +++++
 3 files changed, 13 insertions(+)

diff --git a/package.json b/package.json
index f68287840..ae337fb4b 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,7 @@
     "vite": "^2.7.2"
   },
   "dependencies": {
+    "fast-sha256": "^1.3.0",
     "libsodium": "^0.7.9",
     "ogv": "^1.8.6",
     "ts-proto": "^1.101.0"
diff --git a/src/websock.ts b/src/websock.ts
index 2c6483584..67af1c139 100644
--- a/src/websock.ts
+++ b/src/websock.ts
@@ -1,5 +1,6 @@
 import * as message from "./message.js";
 import * as rendezvous from "./rendezvous.js";
+import * as sha256 from "fast-sha256";
 
 type Keys = "message" | "open" | "close" | "error";
 
@@ -76,4 +77,10 @@ export default class Websock {
       let bytes = new Uint8Array(e.data);
     }
   }
+
+  hash(datas: [Uint8Array]): Uint8Array {
+    const hasher = new sha256.Hash();
+    datas.forEach((data) => hasher.update(data));
+    return hasher.digest();
+  }
 }
diff --git a/yarn.lock b/yarn.lock
index f1a562057..c71b7d1c5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -190,6 +190,11 @@ esbuild@^0.13.12:
     esbuild-windows-64 "0.13.15"
     esbuild-windows-arm64 "0.13.15"
 
+fast-sha256@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/fast-sha256/-/fast-sha256-1.3.0.tgz#7916ba2054eeb255982608cccd0f6660c79b7ae6"
+  integrity sha512-n11RGP/lrWEFI/bWdygLxhI+pVeo1ZYIVwvvPkW7azl/rOy+F3HYRZ2K5zeE9mmkhQppyv9sQFx0JM9UabnpPQ==
+
 fsevents@~2.3.2:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-2.3.2.tgz#8a526f78b8fdf4623b709e0b975c52c24c02fd1a"