From ba4b8cc29edaec094f225966f21455ce7b840441 Mon Sep 17 00:00:00 2001
From: Savely Savianok <1986developer@gmail.com>
Date: Sat, 1 Mar 2025 22:58:48 +0300
Subject: [PATCH] feat(staging): adding protobuf decoder (part 2)

---
 lib/protobuf-decoder/protobufDecoder.js |  2 +-
 lib/totp-quickjs/base32decoder.js       | 38 +++++++++++++++----------
 setting/utils/queryParser.js            |  7 +++--
 3 files changed, 29 insertions(+), 18 deletions(-)

diff --git a/lib/protobuf-decoder/protobufDecoder.js b/lib/protobuf-decoder/protobufDecoder.js
index f9a11af..558f1cb 100644
--- a/lib/protobuf-decoder/protobufDecoder.js
+++ b/lib/protobuf-decoder/protobufDecoder.js
@@ -1,6 +1,6 @@
 import { decodeVarint } from "./varintUtils";
 
-class BufferReader {
+export class BufferReader {
   constructor(buffer) {
     this.buffer = buffer;
     this.offset = 0;
diff --git a/lib/totp-quickjs/base32decoder.js b/lib/totp-quickjs/base32decoder.js
index 7c0e514..821b33c 100644
--- a/lib/totp-quickjs/base32decoder.js
+++ b/lib/totp-quickjs/base32decoder.js
@@ -25,22 +25,30 @@ function leftpad(str, len, pad) {
 	);
 }
 
-export function base64decode(base64String) {    
-        var sliceSize = 1024;
-        var byteCharacters = window.atob(base64String);
-        var bytesLength = byteCharacters.length;
-        var slicesCount = Math.ceil(bytesLength / sliceSize);
-        var byteArrays = new Array(slicesCount);
+export function base64decode(base64) {
+    const chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+    let result = [];
+    let i = 0, j = 0;
+    let b1, b2, b3, b4;
 
-        for (var sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {
-            var begin = sliceIndex * sliceSize;
-            var end = Math.min(begin + sliceSize, bytesLength);
+    while (i < base64.length) {
+        b1 = chars.indexOf(base64.charAt(i++));
+        b2 = chars.indexOf(base64.charAt(i++));
+        b3 = chars.indexOf(base64.charAt(i++));
+        b4 = chars.indexOf(base64.charAt(i++));
 
-            var bytes = new Array(end - begin);
-            for (var offset = begin, i = 0; offset < end; ++i, ++offset) {
-                bytes[i] = byteCharacters[offset].charCodeAt(0);
-            }
-            byteArrays[sliceIndex] = new Uint8Array(bytes);
+        if (b1 === -1 || b2 === -1) break;
+
+        result[j++] = (b1 << 2) | (b2 >> 4);
+
+        if (b3 !== -1) {
+            result[j++] = ((b2 & 15) << 4) | (b3 >> 2);
         }
-        return byteArrays
+
+        if (b4 !== -1) {
+            result[j++] = ((b3 & 3) << 6) | b4;
+        }
+    }
+
+    return result.slice(0, j);
 }
\ No newline at end of file
diff --git a/setting/utils/queryParser.js b/setting/utils/queryParser.js
index 8bb2365..2bd7953 100644
--- a/setting/utils/queryParser.js
+++ b/setting/utils/queryParser.js
@@ -64,6 +64,9 @@ function getByOtpauthScheme(link){
 function getByGoogleMigrationScheme(link){
     console.log("Hello")
     let data = link.split("data=")[1]; //Returns secret
-    let decodedProto = decodeProto(base64decode(data));
-    console.log(decodedProto)
+    data = decodeURIComponent(data);
+    console.log(data)
+    let decode = base64decode(data);
+    console.log(decode)
+    console.log(decodeProto(decode));
 }
\ No newline at end of file