From 98439cb38a165b84f561de17ff76d661d834cc4c Mon Sep 17 00:00:00 2001
From: timonson <timo.rossa@tutanota.com>
Date: Tue, 5 Sep 2023 02:19:58 +0200
Subject: [PATCH] -

---
 util/id.js | 34 ++++++++++++++++++++++++++++++----
 1 file changed, 30 insertions(+), 4 deletions(-)

diff --git a/util/id.js b/util/id.js
index affda5c..d2d4961 100644
--- a/util/id.js
+++ b/util/id.js
@@ -1,10 +1,36 @@
 /**
-/**
- * generateId.
+ * generateId
+ * Produces a random 8-character hexadecimal string.
+ * @param {number} [length=10]
  * @returns {string}
  */
-export function generateId() {
-  return crypto.getRandomValues(new Uint32Array(1))[0].toString(16);
+export function generateId(length = 12) {
+  const minHexChars = 2; // Minimum number of characters required for a valid hex digit
+  const maxBytes = 65536; // Maximum number of random bytes available
+  const maxHexChars = maxBytes * 2; // Each byte corresponds to 2 hex characters
+
+  if (length < minHexChars) {
+    // If the length is too small, generate a random number instead
+    const randomHex = Math.floor(Math.random() * Math.pow(16, minHexChars))
+      .toString(16).padStart(minHexChars, "0");
+    return randomHex;
+  }
+
+  if (length > maxHexChars) {
+    throw new Error(
+      `Requested length exceeds the maximum allowable (${maxHexChars} characters).`,
+    );
+  }
+
+  const bytes = new Uint8Array(length / 2);
+  crypto.getRandomValues(bytes);
+
+  const hexString = Array.from(
+    bytes,
+    (byte) => byte.toString(16).padStart(2, "0"),
+  ).join("");
+
+  return hexString;
 }
 
 /**