From e2f7bcbb4720f1b5ba1f29f2345c55deaadb676d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ricardo=20Fern=C3=A1ndez=20Serrata?=
 <76864299+Rudxain@users.noreply.github.com>
Date: Tue, 14 Jun 2022 14:16:00 -0400
Subject: [PATCH] p

---
 classes/XOR.js | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/classes/XOR.js b/classes/XOR.js
index 692f536..51bbb4e 100644
--- a/classes/XOR.js
+++ b/classes/XOR.js
@@ -1,8 +1,16 @@
-//converts input base64 into its URL-safe variant
-//let toURLsafe = str => str.replace(/./gs, c => ({'/': '_', '+': '-'}[c] || c))
 //https://nodejs.org/docs/latest/api/buffer.html#buffers-and-character-encodings
+//both only work on "binary strings" and "URI-safe B64"
+let toB64 = str => Buffer.from(str).toString('base64url')
+let fromB64 = str => Buffer.from(str, 'base64').toString()
+
+const defKey = 37526
+
 module.exports = class XOR {
-    xor(str, key) { return String.fromCodePoint(...str.split('').map((c, i) => c.charCodeAt(0) ^ key.toString().charCodeAt(i % key.toString().length))) }
-    encrypt(str, key = 37526) { return Buffer.from(this.xor(str, key)).toString('base64url') }
-    decrypt(str, key = 37526) { return this.xor(Buffer.from(str, 'base64').toString(), key) }
+    xor(str, key) {
+        key = key.toString()
+        return String.fromCodePoint(...str.split('')
+            .map((c, i) => c.charCodeAt(0) ^ key.charCodeAt(i % key.length)))
+    }
+    encrypt(str, key = defKey) { return toB64(this.xor(str, key)) }
+    decrypt(str, key = defKey) { return this.xor(fromB64(str), key) }
 }
\ No newline at end of file