Use standard Uint8Array instead of Node.js Buffer

Author: EzraBrooks

package-lock.json

@@ -43,7 +43,6 @@
   "dependencies": {
     "@xmldom/xmldom": "^0.9.8",
     "bson": "^7.0.0",
-    "buffer": "^6.0.3",
     "cbor2": "^2.0.1",
     "eventemitter3": "^5.0.1",
     "fast-png": "^7.0.1",

package.json

@@ -5,7 +5,6 @@
 
 import type { DecodedPng } from "fast-png";
 import { decode } from "fast-png";
-import { Buffer } from "buffer";
 
 const textDecoder = new TextDecoder();
 
@@ -17,7 +16,7 @@ const textDecoder = new TextDecoder();
  * @param data - An object containing the PNG data.
  */
 export default function decompressPng(data: string): unknown {
-  const buffer = Buffer.from(data, "base64");
+  const buffer = Uint8Array.from(atob(data), (char) => char.charCodeAt(0));
 
   const decoded = tryDecodeBuffer(buffer);
 
@@ -28,7 +27,7 @@ export default function decompressPng(data: string): unknown {
   }
 }
 
-function tryDecodeBuffer(buffer: Buffer): DecodedPng {
+function tryDecodeBuffer(buffer: Uint8Array): DecodedPng {
   try {
     return decode(buffer);
   } catch (error) {

src/util/decompressPng.ts

@@ -190,7 +190,7 @@ describe("Transport", () => {
             text: {},
             data: Buffer.from(JSON.stringify({ op: "test" })),
           };
-          switch ((data as Buffer).toString()) {
+          switch (new TextDecoder().decode(data)) {
             case "success":
               return decodedImage;
             case "failure":